| File: | root/firefox-clang/obj-x86_64-pc-linux-gnu/layout/base/./../../../layout/base/nsCSSFrameConstructor.cpp |
| Warning: | line 6944, column 5 Value stored to 'parentType' is never read |
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| 1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| 2 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| 3 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| 4 | |
| 5 | /* |
| 6 | * construction of a frame tree that is nearly isomorphic to the content |
| 7 | * tree and updating of that tree in response to dynamic changes |
| 8 | */ |
| 9 | |
| 10 | #include "nsCSSFrameConstructor.h" |
| 11 | |
| 12 | #include "ActiveLayerTracker.h" |
| 13 | #include "ChildIterator.h" |
| 14 | #include "PseudoStyleType.h" |
| 15 | #include "RetainedDisplayListBuilder.h" |
| 16 | #include "RubyUtils.h" |
| 17 | #include "StickyScrollContainer.h" |
| 18 | #include "mozilla/AbsoluteContainingBlock.h" |
| 19 | #include "mozilla/Assertions.h" |
| 20 | #include "mozilla/AutoRestore.h" |
| 21 | #include "mozilla/ComputedStyleInlines.h" |
| 22 | #include "mozilla/DebugOnly.h" |
| 23 | #include "mozilla/ErrorResult.h" |
| 24 | #include "mozilla/Likely.h" |
| 25 | #include "mozilla/ManualNAC.h" |
| 26 | #include "mozilla/PresShell.h" |
| 27 | #include "mozilla/PresShellInlines.h" |
| 28 | #include "mozilla/PrintedSheetFrame.h" |
| 29 | #include "mozilla/ProfilerLabels.h" |
| 30 | #include "mozilla/ProfilerMarkers.h" |
| 31 | #include "mozilla/RestyleManager.h" |
| 32 | #include "mozilla/SVGGradientFrame.h" |
| 33 | #include "mozilla/ScopeExit.h" |
| 34 | #include "mozilla/ScrollContainerFrame.h" |
| 35 | #include "mozilla/ServoBindings.h" |
| 36 | #include "mozilla/ServoStyleSetInlines.h" |
| 37 | #include "mozilla/StaticPrefs_browser.h" |
| 38 | #include "mozilla/StaticPrefs_layout.h" |
| 39 | #include "mozilla/StaticPrefs_mathml.h" |
| 40 | #include "mozilla/dom/BindContext.h" |
| 41 | #include "mozilla/dom/BrowsingContext.h" |
| 42 | #include "mozilla/dom/CharacterData.h" |
| 43 | #include "mozilla/dom/CharacterDataBuffer.h" |
| 44 | #include "mozilla/dom/Document.h" |
| 45 | #include "mozilla/dom/DocumentInlines.h" |
| 46 | #include "mozilla/dom/Element.h" |
| 47 | #include "mozilla/dom/ElementInlines.h" |
| 48 | #include "mozilla/dom/GeneratedImageContent.h" |
| 49 | #include "mozilla/dom/HTMLInputElement.h" |
| 50 | #include "mozilla/dom/HTMLLabelElement.h" |
| 51 | #include "mozilla/dom/HTMLSelectElement.h" |
| 52 | #include "mozilla/dom/HTMLSharedListElement.h" |
| 53 | #include "mozilla/dom/HTMLSummaryElement.h" |
| 54 | #include "mozilla/intl/LocaleService.h" |
| 55 | #include "nsAtom.h" |
| 56 | #include "nsAutoLayoutPhase.h" |
| 57 | #include "nsBlockFrame.h" |
| 58 | #include "nsCRT.h" |
| 59 | #include "nsCanvasFrame.h" |
| 60 | #include "nsCheckboxRadioFrame.h" |
| 61 | #include "nsComboboxControlFrame.h" |
| 62 | #include "nsContainerFrame.h" |
| 63 | #include "nsContentUtils.h" |
| 64 | #include "nsError.h" |
| 65 | #include "nsFieldSetFrame.h" |
| 66 | #include "nsFirstLetterFrame.h" |
| 67 | #include "nsFlexContainerFrame.h" |
| 68 | #include "nsGkAtoms.h" |
| 69 | #include "nsGridContainerFrame.h" |
| 70 | #include "nsHTMLParts.h" |
| 71 | #include "nsIAnonymousContentCreator.h" |
| 72 | #include "nsIFormControl.h" |
| 73 | #include "nsIFrameInlines.h" |
| 74 | #include "nsIObjectLoadingContent.h" |
| 75 | #include "nsIPopupContainer.h" |
| 76 | #include "nsIScriptError.h" |
| 77 | #include "nsImageFrame.h" |
| 78 | #include "nsInlineFrame.h" |
| 79 | #include "nsLayoutUtils.h" |
| 80 | #include "nsListControlFrame.h" |
| 81 | #include "nsMathMLParts.h" |
| 82 | #include "nsNameSpaceManager.h" |
| 83 | #include "nsPageContentFrame.h" |
| 84 | #include "nsPageFrame.h" |
| 85 | #include "nsPageSequenceFrame.h" |
| 86 | #include "nsPlaceholderFrame.h" |
| 87 | #include "nsPresContext.h" |
| 88 | #include "nsRefreshDriver.h" |
| 89 | #include "nsRubyBaseContainerFrame.h" |
| 90 | #include "nsRubyBaseFrame.h" |
| 91 | #include "nsRubyFrame.h" |
| 92 | #include "nsRubyTextContainerFrame.h" |
| 93 | #include "nsRubyTextFrame.h" |
| 94 | #include "nsStyleConsts.h" |
| 95 | #include "nsStyleStructInlines.h" |
| 96 | #include "nsTArray.h" |
| 97 | #include "nsTableCellFrame.h" |
| 98 | #include "nsTableColFrame.h" |
| 99 | #include "nsTableFrame.h" |
| 100 | #include "nsTableRowFrame.h" |
| 101 | #include "nsTableRowGroupFrame.h" |
| 102 | #include "nsTableWrapperFrame.h" |
| 103 | #include "nsTextControlFrame.h" |
| 104 | #include "nsTextNode.h" |
| 105 | #include "nsTransitionManager.h" |
| 106 | #include "nsUnicharUtils.h" |
| 107 | #include "nsXULElement.h" |
| 108 | |
| 109 | #ifdef XP_MACOSX |
| 110 | # include "nsIDocShell.h" |
| 111 | #endif |
| 112 | |
| 113 | #ifdef ACCESSIBILITY1 |
| 114 | # include "nsAccessibilityService.h" |
| 115 | #endif |
| 116 | |
| 117 | #undef NOISY_FIRST_LETTER |
| 118 | |
| 119 | using namespace mozilla; |
| 120 | using namespace mozilla::dom; |
| 121 | |
| 122 | nsIFrame* NS_NewHTMLCanvasFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 123 | |
| 124 | nsIFrame* NS_NewHTMLVideoFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 125 | nsIFrame* NS_NewHTMLAudioFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 126 | |
| 127 | nsContainerFrame* NS_NewSVGOuterSVGFrame(PresShell* aPresShell, |
| 128 | ComputedStyle* aStyle); |
| 129 | nsContainerFrame* NS_NewSVGOuterSVGAnonChildFrame(PresShell* aPresShell, |
| 130 | ComputedStyle* aStyle); |
| 131 | nsIFrame* NS_NewSVGInnerSVGFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 132 | nsIFrame* NS_NewSVGGeometryFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 133 | nsIFrame* NS_NewSVGGFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 134 | nsContainerFrame* NS_NewSVGForeignObjectFrame(PresShell* aPresShell, |
| 135 | ComputedStyle* aStyle); |
| 136 | nsIFrame* NS_NewSVGAFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 137 | nsIFrame* NS_NewSVGSwitchFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 138 | nsIFrame* NS_NewSVGSymbolFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 139 | nsIFrame* NS_NewSVGTextFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 140 | nsIFrame* NS_NewSVGContainerFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 141 | nsIFrame* NS_NewSVGUseFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 142 | nsIFrame* NS_NewSVGViewFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 143 | extern nsIFrame* NS_NewSVGLinearGradientFrame(PresShell* aPresShell, |
| 144 | ComputedStyle* aStyle); |
| 145 | extern nsIFrame* NS_NewSVGRadialGradientFrame(PresShell* aPresShell, |
| 146 | ComputedStyle* aStyle); |
| 147 | extern nsIFrame* NS_NewSVGStopFrame(PresShell* aPresShell, |
| 148 | ComputedStyle* aStyle); |
| 149 | nsContainerFrame* NS_NewSVGMarkerFrame(PresShell* aPresShell, |
| 150 | ComputedStyle* aStyle); |
| 151 | nsContainerFrame* NS_NewSVGMarkerAnonChildFrame(PresShell* aPresShell, |
| 152 | ComputedStyle* aStyle); |
| 153 | extern nsIFrame* NS_NewSVGImageFrame(PresShell* aPresShell, |
| 154 | ComputedStyle* aStyle); |
| 155 | nsIFrame* NS_NewSVGClipPathFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 156 | nsIFrame* NS_NewSVGFilterFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 157 | nsIFrame* NS_NewSVGPatternFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 158 | nsIFrame* NS_NewSVGMaskFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 159 | nsIFrame* NS_NewSVGFEContainerFrame(PresShell* aPresShell, |
| 160 | ComputedStyle* aStyle); |
| 161 | nsIFrame* NS_NewSVGFELeafFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 162 | nsIFrame* NS_NewSVGFEImageFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 163 | nsIFrame* NS_NewSVGFEUnstyledLeafFrame(PresShell* aPresShell, |
| 164 | ComputedStyle* aStyle); |
| 165 | nsIFrame* NS_NewFileControlLabelFrame(PresShell*, ComputedStyle*); |
| 166 | nsIFrame* NS_NewComboboxLabelFrame(PresShell*, ComputedStyle*); |
| 167 | nsIFrame* NS_NewMiddleCroppingLabelFrame(PresShell*, ComputedStyle*); |
| 168 | nsIFrame* NS_NewInputButtonControlFrame(PresShell*, ComputedStyle*); |
| 169 | |
| 170 | #include "mozilla/dom/NodeInfo.h" |
| 171 | #include "nsContentCreatorFunctions.h" |
| 172 | #include "nsNodeInfoManager.h" |
| 173 | #include "prenv.h" |
| 174 | |
| 175 | #ifdef DEBUG1 |
| 176 | // Set the environment variable GECKO_FRAMECTOR_DEBUG_FLAGS to one or |
| 177 | // more of the following flags (comma separated) for handy debug |
| 178 | // output. |
| 179 | static bool gNoisyContentUpdates = false; |
| 180 | static bool gReallyNoisyContentUpdates = false; |
| 181 | static bool gNoisyInlineConstruction = false; |
| 182 | |
| 183 | struct FrameCtorDebugFlags { |
| 184 | const char* name; |
| 185 | bool* on; |
| 186 | }; |
| 187 | |
| 188 | static FrameCtorDebugFlags gFrameCtorDebugFlags[] = { |
| 189 | {"content-updates", &gNoisyContentUpdates}, |
| 190 | {"really-noisy-content-updates", &gReallyNoisyContentUpdates}, |
| 191 | {"noisy-inline", &gNoisyInlineConstruction}}; |
| 192 | |
| 193 | # define NUM_DEBUG_FLAGS(std::size(gFrameCtorDebugFlags)) (std::size(gFrameCtorDebugFlags)) |
| 194 | #endif |
| 195 | |
| 196 | //------------------------------------------------------------------ |
| 197 | |
| 198 | nsIFrame* NS_NewLeafBoxFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 199 | |
| 200 | nsIFrame* NS_NewRangeFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 201 | |
| 202 | nsIFrame* NS_NewTextBoxFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 203 | |
| 204 | nsIFrame* NS_NewSplitterFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 205 | |
| 206 | nsIFrame* NS_NewMenuPopupFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 207 | |
| 208 | nsIFrame* NS_NewTreeBodyFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 209 | |
| 210 | nsIFrame* NS_NewSliderFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 211 | |
| 212 | nsIFrame* NS_NewScrollbarFrame(PresShell* aPresShell, ComputedStyle* aStyle); |
| 213 | |
| 214 | nsIFrame* NS_NewScrollbarButtonFrame(PresShell*, ComputedStyle*); |
| 215 | nsIFrame* NS_NewSimpleXULLeafFrame(PresShell*, ComputedStyle*); |
| 216 | |
| 217 | nsIFrame* NS_NewXULImageFrame(PresShell*, ComputedStyle*); |
| 218 | nsIFrame* NS_NewImageFrameForContentProperty(PresShell*, ComputedStyle*); |
| 219 | nsIFrame* NS_NewImageFrameForGeneratedContentIndex(PresShell*, ComputedStyle*); |
| 220 | nsIFrame* NS_NewImageFrameForListStyleImage(PresShell*, ComputedStyle*); |
| 221 | nsIFrame* NS_NewImageFrameForViewTransition(PresShell*, ComputedStyle*); |
| 222 | |
| 223 | // Returns true if aFrame is an anonymous flex/grid item. |
| 224 | static inline bool IsAnonymousItem(const nsIFrame* aFrame) { |
| 225 | return aFrame->Style()->GetPseudoType() == PseudoStyleType::MozAnonymousItem; |
| 226 | } |
| 227 | |
| 228 | // Returns true IFF the given nsIFrame is a nsFlexContainerFrame and represents |
| 229 | // a -webkit-{inline-}box container. |
| 230 | static inline bool IsFlexContainerForLegacyWebKitBox(const nsIFrame* aFrame) { |
| 231 | return aFrame->IsFlexContainerFrame() && aFrame->IsLegacyWebkitBox(); |
| 232 | } |
| 233 | |
| 234 | static MOZ_ALWAYS_INLINEinline void AssertAnonymousFlexOrGridItemParent( |
| 235 | const nsIFrame* aChild, const nsIFrame* aParent) { |
| 236 | MOZ_ASSERT(IsAnonymousItem(aChild), "expected an anonymous item child frame")do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsAnonymousItem(aChild))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsAnonymousItem(aChild)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("IsAnonymousItem(aChild)" " (" "expected an anonymous item child frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 236); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsAnonymousItem(aChild)" ") (" "expected an anonymous item child frame" ")"); do { MOZ_CrashSequence (__null, 236); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 237 | MOZ_ASSERT(aParent, "expected a parent frame")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aParent" " (" "expected a parent frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 237 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParent" ") (" "expected a parent frame" ")"); do { MOZ_CrashSequence(__null, 237); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 238 | MOZ_ASSERT(aParent->IsFlexOrGridContainer(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParent->IsFlexOrGridContainer())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParent->IsFlexOrGridContainer ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aParent->IsFlexOrGridContainer()" " (" "anonymous items should only exist as children of flex/grid " "container frames" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 240); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParent->IsFlexOrGridContainer()" ") (" "anonymous items should only exist as children of flex/grid " "container frames" ")"); do { MOZ_CrashSequence(__null, 240) ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 239 | "anonymous items should only exist as children of flex/grid "do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParent->IsFlexOrGridContainer())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParent->IsFlexOrGridContainer ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aParent->IsFlexOrGridContainer()" " (" "anonymous items should only exist as children of flex/grid " "container frames" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 240); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParent->IsFlexOrGridContainer()" ") (" "anonymous items should only exist as children of flex/grid " "container frames" ")"); do { MOZ_CrashSequence(__null, 240) ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 240 | "container frames")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParent->IsFlexOrGridContainer())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParent->IsFlexOrGridContainer ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aParent->IsFlexOrGridContainer()" " (" "anonymous items should only exist as children of flex/grid " "container frames" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 240); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParent->IsFlexOrGridContainer()" ") (" "anonymous items should only exist as children of flex/grid " "container frames" ")"); do { MOZ_CrashSequence(__null, 240) ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 241 | } |
| 242 | |
| 243 | static MOZ_ALWAYS_INLINEinline void AssertAnonymousFlexOrGridItemParent( |
| 244 | const nsIFrame* aChild) { |
| 245 | AssertAnonymousFlexOrGridItemParent(aChild, aChild->GetParent()); |
| 246 | } |
| 247 | |
| 248 | #define ToCreationFunc(_func)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return _func(aPs, aStyle); } \ |
| 249 | [](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { \ |
| 250 | return _func(aPs, aStyle); \ |
| 251 | } |
| 252 | |
| 253 | /** |
| 254 | * True if aFrame is an actual inline frame in the sense of non-replaced |
| 255 | * display:inline CSS boxes. In other words, it can be affected by {ib} |
| 256 | * splitting and can contain first-letter frames. Basically, this is either an |
| 257 | * inline frame (positioned or otherwise) or an line frame (this last because |
| 258 | * it can contain first-letter and because inserting blocks in the middle of it |
| 259 | * needs to terminate it). |
| 260 | */ |
| 261 | static bool IsInlineFrame(const nsIFrame* aFrame) { |
| 262 | return aFrame->IsLineParticipant(); |
| 263 | } |
| 264 | |
| 265 | /** |
| 266 | * True for display: contents elements. |
| 267 | */ |
| 268 | static inline bool IsDisplayContents(const Element* aElement) { |
| 269 | return aElement->IsDisplayContents(); |
| 270 | } |
| 271 | |
| 272 | static inline bool IsDisplayContents(const nsIContent* aContent) { |
| 273 | return aContent->IsElement() && IsDisplayContents(aContent->AsElement()); |
| 274 | } |
| 275 | |
| 276 | /** |
| 277 | * True if aFrame is an instance of an SVG frame class or is an inline/block |
| 278 | * frame being used for SVG text. |
| 279 | */ |
| 280 | static bool IsFrameForSVG(const nsIFrame* aFrame) { |
| 281 | return aFrame->IsSVGFrame() || aFrame->IsInSVGTextSubtree(); |
| 282 | } |
| 283 | |
| 284 | static bool IsLastContinuationForColumnContent(const nsIFrame* aFrame) { |
| 285 | MOZ_ASSERT(aFrame)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 285); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ")") ; do { MOZ_CrashSequence(__null, 285); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 286 | return aFrame->Style()->GetPseudoType() == |
| 287 | PseudoStyleType::MozColumnContent && |
| 288 | !aFrame->GetNextContinuation(); |
| 289 | } |
| 290 | |
| 291 | /** |
| 292 | * Returns true iff aFrame explicitly prevents its descendants from floating |
| 293 | * (at least, down to the level of descendants which themselves are |
| 294 | * float-containing blocks -- those will manage the floating status of any |
| 295 | * lower-level descendents inside them, of course). |
| 296 | */ |
| 297 | static bool ShouldSuppressFloatingOfDescendants(nsIFrame* aFrame) { |
| 298 | return aFrame->IsFlexOrGridContainer() || aFrame->IsMathMLFrame(); |
| 299 | } |
| 300 | |
| 301 | // Return true if column-span descendants should be suppressed under aFrame's |
| 302 | // subtree (until a multi-column container re-establishing a block formatting |
| 303 | // context). Basically, this is testing whether aFrame establishes a new block |
| 304 | // formatting context or not. |
| 305 | static bool ShouldSuppressColumnSpanDescendants(nsIFrame* aFrame) { |
| 306 | if (aFrame->Style()->GetPseudoType() == PseudoStyleType::MozColumnContent) { |
| 307 | // Never suppress column-span under ::-moz-column-content frames. |
| 308 | return false; |
| 309 | } |
| 310 | |
| 311 | if (aFrame->IsInlineFrame()) { |
| 312 | // Allow inline frames to have column-span block children. |
| 313 | return false; |
| 314 | } |
| 315 | |
| 316 | if (!aFrame->IsBlockFrameOrSubclass() || |
| 317 | aFrame->HasAnyStateBits(NS_BLOCK_BFC | NS_FRAME_OUT_OF_FLOW) || |
| 318 | aFrame->IsFixedPosContainingBlock()) { |
| 319 | // Need to suppress column-span if we: |
| 320 | // - Are a different block formatting context, |
| 321 | // - Are an out-of-flow frame, OR |
| 322 | // - Establish a containing block for fixed-position descendants |
| 323 | // |
| 324 | // For example, the children of a column-span never need to be further |
| 325 | // processed even if there is a nested column-span child. Because a |
| 326 | // column-span always creates its own block formatting context, a nested |
| 327 | // column-span child won't be in the same block formatting context with the |
| 328 | // nearest multi-column ancestor. This is the same case as if the |
| 329 | // column-span is outside of a multi-column hierarchy. |
| 330 | return true; |
| 331 | } |
| 332 | |
| 333 | return false; |
| 334 | } |
| 335 | |
| 336 | // Reparent a frame into a wrapper frame that is a child of its old parent. |
| 337 | static void ReparentFrame(RestyleManager* aRestyleManager, |
| 338 | nsContainerFrame* aNewParentFrame, nsIFrame* aFrame, |
| 339 | bool aForceStyleReparent) { |
| 340 | aFrame->SetParent(aNewParentFrame); |
| 341 | // We reparent frames for two reasons: to put them inside ::first-line, and to |
| 342 | // put them inside some wrapper anonymous boxes. |
| 343 | if (aForceStyleReparent) { |
| 344 | aRestyleManager->ReparentComputedStyleForFirstLine(aFrame); |
| 345 | } |
| 346 | } |
| 347 | |
| 348 | static void ReparentFrames(nsCSSFrameConstructor* aFrameConstructor, |
| 349 | nsContainerFrame* aNewParentFrame, |
| 350 | const nsFrameList& aFrameList, |
| 351 | bool aForceStyleReparent) { |
| 352 | RestyleManager* restyleManager = aFrameConstructor->RestyleManager(); |
| 353 | for (nsIFrame* f : aFrameList) { |
| 354 | ReparentFrame(restyleManager, aNewParentFrame, f, aForceStyleReparent); |
| 355 | } |
| 356 | } |
| 357 | |
| 358 | //---------------------------------------------------------------------- |
| 359 | // |
| 360 | // When inline frames get weird and have block frames in them, we |
| 361 | // annotate them to help us respond to incremental content changes |
| 362 | // more easily. |
| 363 | |
| 364 | static inline bool IsFramePartOfIBSplit(nsIFrame* aFrame) { |
| 365 | bool result = aFrame->HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT); |
| 366 | MOZ_ASSERT(!result || aFrame->IsBlockFrameOrSubclass() ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!result || aFrame->IsBlockFrameOrSubclass() || aFrame ->IsInlineFrameOrSubclass())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!result || aFrame->IsBlockFrameOrSubclass () || aFrame->IsInlineFrameOrSubclass()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!result || aFrame->IsBlockFrameOrSubclass() || aFrame->IsInlineFrameOrSubclass()" " (" "only block/inline frames can have NS_FRAME_PART_OF_IBSPLIT" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 368 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!result || aFrame->IsBlockFrameOrSubclass() || aFrame->IsInlineFrameOrSubclass()" ") (" "only block/inline frames can have NS_FRAME_PART_OF_IBSPLIT" ")"); do { MOZ_CrashSequence(__null, 368); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 367 | aFrame->IsInlineFrameOrSubclass(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!result || aFrame->IsBlockFrameOrSubclass() || aFrame ->IsInlineFrameOrSubclass())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!result || aFrame->IsBlockFrameOrSubclass () || aFrame->IsInlineFrameOrSubclass()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!result || aFrame->IsBlockFrameOrSubclass() || aFrame->IsInlineFrameOrSubclass()" " (" "only block/inline frames can have NS_FRAME_PART_OF_IBSPLIT" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 368 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!result || aFrame->IsBlockFrameOrSubclass() || aFrame->IsInlineFrameOrSubclass()" ") (" "only block/inline frames can have NS_FRAME_PART_OF_IBSPLIT" ")"); do { MOZ_CrashSequence(__null, 368); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 368 | "only block/inline frames can have NS_FRAME_PART_OF_IBSPLIT")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!result || aFrame->IsBlockFrameOrSubclass() || aFrame ->IsInlineFrameOrSubclass())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!result || aFrame->IsBlockFrameOrSubclass () || aFrame->IsInlineFrameOrSubclass()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!result || aFrame->IsBlockFrameOrSubclass() || aFrame->IsInlineFrameOrSubclass()" " (" "only block/inline frames can have NS_FRAME_PART_OF_IBSPLIT" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 368 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!result || aFrame->IsBlockFrameOrSubclass() || aFrame->IsInlineFrameOrSubclass()" ") (" "only block/inline frames can have NS_FRAME_PART_OF_IBSPLIT" ")"); do { MOZ_CrashSequence(__null, 368); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 369 | return result; |
| 370 | } |
| 371 | |
| 372 | static nsContainerFrame* GetIBSplitSibling(nsIFrame* aFrame) { |
| 373 | MOZ_ASSERT(IsFramePartOfIBSplit(aFrame), "Shouldn't call this")do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsFramePartOfIBSplit(aFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsFramePartOfIBSplit(aFrame) ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "IsFramePartOfIBSplit(aFrame)" " (" "Shouldn't call this" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 373); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "IsFramePartOfIBSplit(aFrame)" ") (" "Shouldn't call this" ")"); do { MOZ_CrashSequence(__null, 373); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 374 | |
| 375 | // We only store the "ib-split sibling" annotation with the first |
| 376 | // frame in the continuation chain. Walk back to find that frame now. |
| 377 | return aFrame->FirstContinuation()->GetProperty(nsIFrame::IBSplitSibling()); |
| 378 | } |
| 379 | |
| 380 | static nsContainerFrame* GetIBSplitPrevSibling(nsIFrame* aFrame) { |
| 381 | MOZ_ASSERT(IsFramePartOfIBSplit(aFrame), "Shouldn't call this")do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsFramePartOfIBSplit(aFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsFramePartOfIBSplit(aFrame) ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "IsFramePartOfIBSplit(aFrame)" " (" "Shouldn't call this" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 381); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "IsFramePartOfIBSplit(aFrame)" ") (" "Shouldn't call this" ")"); do { MOZ_CrashSequence(__null, 381); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 382 | |
| 383 | // We only store the ib-split sibling annotation with the first |
| 384 | // frame in the continuation chain. Walk back to find that frame now. |
| 385 | return aFrame->FirstContinuation()->GetProperty( |
| 386 | nsIFrame::IBSplitPrevSibling()); |
| 387 | } |
| 388 | |
| 389 | static nsContainerFrame* GetLastIBSplitSibling(nsIFrame* aFrame) { |
| 390 | for (nsIFrame *frame = aFrame, *next;; frame = next) { |
| 391 | next = GetIBSplitSibling(frame); |
| 392 | if (!next) { |
| 393 | return static_cast<nsContainerFrame*>(frame); |
| 394 | } |
| 395 | } |
| 396 | MOZ_ASSERT_UNREACHABLE("unreachable code")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "MOZ_ASSERT_UNREACHABLE: " "unreachable code" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 396); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "unreachable code" ")"); do { MOZ_CrashSequence (__null, 396); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 397 | return nullptr; |
| 398 | } |
| 399 | |
| 400 | static void SetFrameIsIBSplit(nsContainerFrame* aFrame, |
| 401 | nsContainerFrame* aIBSplitSibling) { |
| 402 | MOZ_ASSERT(aFrame, "bad args!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame" " (" "bad args!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 402 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ") (" "bad args!" ")"); do { MOZ_CrashSequence(__null, 402); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 403 | |
| 404 | // We should be the only continuation |
| 405 | NS_ASSERTION(!aFrame->GetPrevContinuation(),do { if (!(!aFrame->GetPrevContinuation())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "assigning ib-split sibling to other than first continuation!" , "!aFrame->GetPrevContinuation()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 406); MOZ_PretendNoReturn(); } } while (0) |
| 406 | "assigning ib-split sibling to other than first continuation!")do { if (!(!aFrame->GetPrevContinuation())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "assigning ib-split sibling to other than first continuation!" , "!aFrame->GetPrevContinuation()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 406); MOZ_PretendNoReturn(); } } while (0); |
| 407 | NS_ASSERTION(!aFrame->GetNextContinuation() ||do { if (!(!aFrame->GetNextContinuation() || IsFramePartOfIBSplit (aFrame->GetNextContinuation()))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "should have no non-ib-split continuations here", "!aFrame->GetNextContinuation() || IsFramePartOfIBSplit(aFrame->GetNextContinuation())" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 409); MOZ_PretendNoReturn (); } } while (0) |
| 408 | IsFramePartOfIBSplit(aFrame->GetNextContinuation()),do { if (!(!aFrame->GetNextContinuation() || IsFramePartOfIBSplit (aFrame->GetNextContinuation()))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "should have no non-ib-split continuations here", "!aFrame->GetNextContinuation() || IsFramePartOfIBSplit(aFrame->GetNextContinuation())" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 409); MOZ_PretendNoReturn (); } } while (0) |
| 409 | "should have no non-ib-split continuations here")do { if (!(!aFrame->GetNextContinuation() || IsFramePartOfIBSplit (aFrame->GetNextContinuation()))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "should have no non-ib-split continuations here", "!aFrame->GetNextContinuation() || IsFramePartOfIBSplit(aFrame->GetNextContinuation())" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 409); MOZ_PretendNoReturn (); } } while (0); |
| 410 | |
| 411 | // Mark the frame as ib-split. |
| 412 | aFrame->AddStateBits(NS_FRAME_PART_OF_IBSPLIT); |
| 413 | |
| 414 | if (aIBSplitSibling) { |
| 415 | NS_ASSERTION(!aIBSplitSibling->GetPrevContinuation(),do { if (!(!aIBSplitSibling->GetPrevContinuation())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "assigning something other than the first continuation as the " "ib-split sibling", "!aIBSplitSibling->GetPrevContinuation()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 417); MOZ_PretendNoReturn (); } } while (0) |
| 416 | "assigning something other than the first continuation as the "do { if (!(!aIBSplitSibling->GetPrevContinuation())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "assigning something other than the first continuation as the " "ib-split sibling", "!aIBSplitSibling->GetPrevContinuation()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 417); MOZ_PretendNoReturn (); } } while (0) |
| 417 | "ib-split sibling")do { if (!(!aIBSplitSibling->GetPrevContinuation())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "assigning something other than the first continuation as the " "ib-split sibling", "!aIBSplitSibling->GetPrevContinuation()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 417); MOZ_PretendNoReturn (); } } while (0); |
| 418 | |
| 419 | // Store the ib-split sibling (if we were given one) with the |
| 420 | // first frame in the flow. |
| 421 | aFrame->SetProperty(nsIFrame::IBSplitSibling(), aIBSplitSibling); |
| 422 | aIBSplitSibling->SetProperty(nsIFrame::IBSplitPrevSibling(), aFrame); |
| 423 | } |
| 424 | } |
| 425 | |
| 426 | static nsIFrame* GetIBContainingBlockFor(nsIFrame* aFrame) { |
| 427 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsFramePartOfIBSplit(aFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsFramePartOfIBSplit(aFrame) ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "IsFramePartOfIBSplit(aFrame)" " (" "GetIBContainingBlockFor() should only be called on known IB frames" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 429 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsFramePartOfIBSplit(aFrame)" ") (" "GetIBContainingBlockFor() should only be called on known IB frames" ")"); do { MOZ_CrashSequence(__null, 429); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 428 | IsFramePartOfIBSplit(aFrame),do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsFramePartOfIBSplit(aFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsFramePartOfIBSplit(aFrame) ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "IsFramePartOfIBSplit(aFrame)" " (" "GetIBContainingBlockFor() should only be called on known IB frames" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 429 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsFramePartOfIBSplit(aFrame)" ") (" "GetIBContainingBlockFor() should only be called on known IB frames" ")"); do { MOZ_CrashSequence(__null, 429); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 429 | "GetIBContainingBlockFor() should only be called on known IB frames")do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsFramePartOfIBSplit(aFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsFramePartOfIBSplit(aFrame) ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "IsFramePartOfIBSplit(aFrame)" " (" "GetIBContainingBlockFor() should only be called on known IB frames" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 429 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsFramePartOfIBSplit(aFrame)" ") (" "GetIBContainingBlockFor() should only be called on known IB frames" ")"); do { MOZ_CrashSequence(__null, 429); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 430 | |
| 431 | // Get the first "normal" ancestor of the target frame. |
| 432 | nsIFrame* parentFrame; |
| 433 | do { |
| 434 | parentFrame = aFrame->GetParent(); |
| 435 | |
| 436 | if (!parentFrame) { |
| 437 | NS_ERROR("no unsplit block frame in IB hierarchy")do { NS_DebugBreak(NS_DEBUG_ASSERTION, "no unsplit block frame in IB hierarchy" , "Error", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 437); MOZ_PretendNoReturn(); } while (0); |
| 438 | return aFrame; |
| 439 | } |
| 440 | |
| 441 | // Note that we ignore non-ib-split frames which have a pseudo on their |
| 442 | // ComputedStyle -- they're not the frames we're looking for! In |
| 443 | // particular, they may be hiding a real parent that _is_ in an ib-split. |
| 444 | if (!IsFramePartOfIBSplit(parentFrame) && |
| 445 | !parentFrame->Style()->IsPseudoOrAnonBox()) { |
| 446 | break; |
| 447 | } |
| 448 | |
| 449 | aFrame = parentFrame; |
| 450 | } while (true); |
| 451 | |
| 452 | // post-conditions |
| 453 | NS_ASSERTION(parentFrame,do { if (!(parentFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "no normal ancestor found for ib-split frame " "in GetIBContainingBlockFor", "parentFrame", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 455); MOZ_PretendNoReturn(); } } while (0) |
| 454 | "no normal ancestor found for ib-split frame "do { if (!(parentFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "no normal ancestor found for ib-split frame " "in GetIBContainingBlockFor", "parentFrame", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 455); MOZ_PretendNoReturn(); } } while (0) |
| 455 | "in GetIBContainingBlockFor")do { if (!(parentFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "no normal ancestor found for ib-split frame " "in GetIBContainingBlockFor", "parentFrame", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 455); MOZ_PretendNoReturn(); } } while (0); |
| 456 | NS_ASSERTION(parentFrame != aFrame,do { if (!(parentFrame != aFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "parentFrame is actually the child frame - bogus reslt", "parentFrame != aFrame" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 457); MOZ_PretendNoReturn (); } } while (0) |
| 457 | "parentFrame is actually the child frame - bogus reslt")do { if (!(parentFrame != aFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "parentFrame is actually the child frame - bogus reslt", "parentFrame != aFrame" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 457); MOZ_PretendNoReturn (); } } while (0); |
| 458 | |
| 459 | return parentFrame; |
| 460 | } |
| 461 | |
| 462 | // Find the multicol containing block suitable for reframing. |
| 463 | // |
| 464 | // Note: this function may not return a ColumnSetWrapperFrame. For example, if |
| 465 | // the multicol containing block has "overflow:scroll" style, |
| 466 | // ScrollContainerFrame is returned because ColumnSetWrapperFrame is the |
| 467 | // scrolled frame which has the -moz-scrolled-content pseudo style. We may walk |
| 468 | // up "too far", but in terms of correctness of reframing, it's OK. |
| 469 | static nsContainerFrame* GetMultiColumnContainingBlockFor(nsIFrame* aFrame) { |
| 470 | MOZ_ASSERT(aFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)" " (" "Should only be called if the frame has a multi-column ancestor!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 471 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)" ") (" "Should only be called if the frame has a multi-column ancestor!" ")"); do { MOZ_CrashSequence(__null, 471); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 471 | "Should only be called if the frame has a multi-column ancestor!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)" " (" "Should only be called if the frame has a multi-column ancestor!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 471 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)" ") (" "Should only be called if the frame has a multi-column ancestor!" ")"); do { MOZ_CrashSequence(__null, 471); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 472 | |
| 473 | nsContainerFrame* current = aFrame->GetParent(); |
| 474 | while (current && |
| 475 | (current->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || |
| 476 | current->Style()->IsPseudoOrAnonBox())) { |
| 477 | current = current->GetParent(); |
| 478 | } |
| 479 | |
| 480 | MOZ_ASSERT(current,do { static_assert( mozilla::detail::AssertionConditionType< decltype(current)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(current))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("current" " (" "No multicol containing block in a valid column hierarchy?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 481 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "current" ") (" "No multicol containing block in a valid column hierarchy?" ")"); do { MOZ_CrashSequence(__null, 481); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 481 | "No multicol containing block in a valid column hierarchy?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(current)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(current))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("current" " (" "No multicol containing block in a valid column hierarchy?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 481 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "current" ") (" "No multicol containing block in a valid column hierarchy?" ")"); do { MOZ_CrashSequence(__null, 481); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 482 | |
| 483 | return current; |
| 484 | } |
| 485 | |
| 486 | static bool InsertSeparatorBeforeAccessKey() { |
| 487 | static bool sInitialized = false; |
| 488 | static bool sValue = false; |
| 489 | if (!sInitialized) { |
| 490 | sInitialized = true; |
| 491 | sValue = |
| 492 | intl::LocaleService::GetInstance()->InsertSeparatorBeforeAccesskeys(); |
| 493 | } |
| 494 | return sValue; |
| 495 | } |
| 496 | |
| 497 | static bool AlwaysAppendAccessKey() { |
| 498 | static bool sInitialized = false; |
| 499 | static bool sValue = false; |
| 500 | if (!sInitialized) { |
| 501 | sInitialized = true; |
| 502 | sValue = intl::LocaleService::GetInstance()->AlwaysAppendAccesskeys(); |
| 503 | } |
| 504 | return sValue; |
| 505 | } |
| 506 | |
| 507 | //---------------------------------------------------------------------- |
| 508 | |
| 509 | // Block/inline frame construction logic. We maintain a few invariants here: |
| 510 | // |
| 511 | // 1. Block frames contain block and inline frames. |
| 512 | // |
| 513 | // 2. Inline frames only contain inline frames. If an inline parent has a block |
| 514 | // child then the block child is migrated upward until it lands in a block |
| 515 | // parent (the inline frames containing block is where it will end up). |
| 516 | |
| 517 | inline void SetInitialSingleChild(nsContainerFrame* aParent, nsIFrame* aFrame) { |
| 518 | MOZ_ASSERT(!aFrame->GetNextSibling(), "Should be using a frame list")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aFrame->GetNextSibling())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aFrame->GetNextSibling() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aFrame->GetNextSibling()" " (" "Should be using a frame list" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 518 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aFrame->GetNextSibling()" ") (" "Should be using a frame list" ")"); do { MOZ_CrashSequence (__null, 518); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 519 | aParent->SetInitialChildList(FrameChildListID::Principal, |
| 520 | nsFrameList(aFrame, aFrame)); |
| 521 | } |
| 522 | |
| 523 | // ----------------------------------------------------------- |
| 524 | |
| 525 | // Structure used when constructing formatting object trees. Contains |
| 526 | // state information needed for absolutely positioned elements |
| 527 | namespace mozilla { |
| 528 | struct AbsoluteFrameList final : public nsFrameList { |
| 529 | // Containing block for absolutely positioned elements. |
| 530 | nsContainerFrame* mContainingBlock; |
| 531 | |
| 532 | explicit AbsoluteFrameList(nsContainerFrame* aContainingBlock = nullptr) |
| 533 | : mContainingBlock(aContainingBlock) {} |
| 534 | |
| 535 | // Transfer frames in aOther to this list. aOther becomes empty after this |
| 536 | // operation. |
| 537 | AbsoluteFrameList(AbsoluteFrameList&& aOther) = default; |
| 538 | AbsoluteFrameList& operator=(AbsoluteFrameList&& aOther) = default; |
| 539 | |
| 540 | #ifdef DEBUG1 |
| 541 | // XXXbz Does this need a debug-only assignment operator that nulls out the |
| 542 | // childList in the AbsoluteFrameList we're copying? Introducing a difference |
| 543 | // between debug and non-debug behavior seems bad, so I guess not... |
| 544 | ~AbsoluteFrameList() { |
| 545 | NS_ASSERTION(!FirstChild(),do { if (!(!FirstChild())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Dangling child list. Someone forgot to insert it?", "!FirstChild()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 546); MOZ_PretendNoReturn (); } } while (0) |
| 546 | "Dangling child list. Someone forgot to insert it?")do { if (!(!FirstChild())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Dangling child list. Someone forgot to insert it?", "!FirstChild()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 546); MOZ_PretendNoReturn (); } } while (0); |
| 547 | } |
| 548 | #endif |
| 549 | }; |
| 550 | } // namespace mozilla |
| 551 | |
| 552 | // ----------------------------------------------------------- |
| 553 | |
| 554 | // Structure for saving the existing state when pushing/poping containing |
| 555 | // blocks. The destructor restores the state to its previous state |
| 556 | class MOZ_STACK_CLASS nsFrameConstructorSaveState { |
| 557 | public: |
| 558 | ~nsFrameConstructorSaveState(); |
| 559 | |
| 560 | private: |
| 561 | // Pointer to struct whose data we save/restore. |
| 562 | AbsoluteFrameList* mList = nullptr; |
| 563 | |
| 564 | // The saved pointer to the fixed list. |
| 565 | AbsoluteFrameList* mSavedFixedList = nullptr; |
| 566 | |
| 567 | // Copy of original frame list. This can be the original absolute list or a |
| 568 | // float list. |
| 569 | AbsoluteFrameList mSavedList; |
| 570 | |
| 571 | // The name of the child list in which our frames would belong. |
| 572 | mozilla::FrameChildListID mChildListID = FrameChildListID::Principal; |
| 573 | nsFrameConstructorState* mState = nullptr; |
| 574 | |
| 575 | friend class nsFrameConstructorState; |
| 576 | }; |
| 577 | |
| 578 | // Structure used for maintaining state information during the |
| 579 | // frame construction process |
| 580 | class MOZ_STACK_CLASS nsFrameConstructorState { |
| 581 | public: |
| 582 | nsPresContext* mPresContext; |
| 583 | PresShell* mPresShell; |
| 584 | nsCSSFrameConstructor* mFrameConstructor; |
| 585 | |
| 586 | // Containing block information for out-of-flow frames. |
| 587 | // |
| 588 | // Floats are easy. Whatever is our float CB. |
| 589 | // |
| 590 | // Regular abspos elements are easy too. Its containing block can be the |
| 591 | // nearest abspos element, or the ICB (the canvas frame). |
| 592 | // |
| 593 | // Top layer abspos elements are always children of the ICB, but we can get |
| 594 | // away with having two different lists (mAbsoluteList and |
| 595 | // mTopLayerAbsoluteList), because because top layer frames cause |
| 596 | // non-top-layer frames to be contained inside (so any descendants of a top |
| 597 | // layer abspos can never share containing block with it, unless they're also |
| 598 | // in the top layer). |
| 599 | // |
| 600 | // Regular fixed elements however are trickier. Fixed elements can be |
| 601 | // contained in one of three lists: |
| 602 | // |
| 603 | // * mAbsoluteList, if our abspos cb is also a fixpos cb (e.g., is |
| 604 | // transformed or has a filter). |
| 605 | // |
| 606 | // * mAncestorFixedList, if the fixpos cb is an ancestor element other than |
| 607 | // the viewport frame, (so, a transformed / filtered |
| 608 | // ancestor). |
| 609 | // |
| 610 | // * mRealFixedList, which is also the fixed list used for the top layer |
| 611 | // fixed items, which is the fixed list of the viewport |
| 612 | // frame. |
| 613 | // |
| 614 | // It is important that mRealFixedList is shared between regular and top layer |
| 615 | // fixpos elements, since no-top-layer descendants of top layer fixed elements |
| 616 | // could share ICB and vice versa, so without that there would be no guarantee |
| 617 | // of layout ordering between them. |
| 618 | AbsoluteFrameList mFloatedList; |
| 619 | AbsoluteFrameList mAbsoluteList; |
| 620 | AbsoluteFrameList mTopLayerAbsoluteList; |
| 621 | AbsoluteFrameList mAncestorFixedList; |
| 622 | AbsoluteFrameList mRealFixedList; |
| 623 | |
| 624 | // Never null, always pointing to one of the lists documented above. |
| 625 | AbsoluteFrameList* mFixedList; |
| 626 | |
| 627 | // What `page: auto` resolves to. This is the used page-name of the parent |
| 628 | // frame. Updated by AutoFrameConstructionPageName. |
| 629 | const nsAtom* mAutoPageNameValue = nullptr; |
| 630 | |
| 631 | nsCOMPtr<nsILayoutHistoryState> mFrameState; |
| 632 | // These bits will be added to the state bits of any frame we construct |
| 633 | // using this state. |
| 634 | nsFrameState mAdditionalStateBits = NS_FRAME_STATE_NONE; |
| 635 | |
| 636 | // If false (which is the default) then call SetPrimaryFrame() as needed |
| 637 | // during frame construction. If true, don't make any SetPrimaryFrame() |
| 638 | // calls, except for generated content which doesn't have a primary frame |
| 639 | // yet. The mCreatingExtraFrames == true mode is meant to be used for |
| 640 | // construction of random "extra" frames for elements via normal frame |
| 641 | // construction APIs (e.g. replication of things across pages in paginated |
| 642 | // mode). |
| 643 | bool mCreatingExtraFrames; |
| 644 | |
| 645 | // This keeps track of whether we have found a "rendered legend" for |
| 646 | // the current FieldSetFrame. |
| 647 | bool mHasRenderedLegend; |
| 648 | |
| 649 | nsTArray<RefPtr<nsIContent>> mGeneratedContentWithInitializer; |
| 650 | |
| 651 | #ifdef DEBUG1 |
| 652 | // Record the float containing block candidate passed into |
| 653 | // MaybePushFloatContainingBlock() to keep track that we've call the method to |
| 654 | // handle the float CB scope before processing the CB's children. It is reset |
| 655 | // in ConstructFramesFromItemList(). |
| 656 | nsContainerFrame* mFloatCBCandidate = nullptr; |
| 657 | #endif |
| 658 | |
| 659 | // Constructor |
| 660 | // Use the passed-in history state. |
| 661 | nsFrameConstructorState( |
| 662 | PresShell* aPresShell, nsContainerFrame* aFixedContainingBlock, |
| 663 | nsContainerFrame* aAbsoluteContainingBlock, |
| 664 | nsContainerFrame* aFloatContainingBlock, |
| 665 | already_AddRefed<nsILayoutHistoryState> aHistoryState); |
| 666 | // Get the history state from the pres context's pres shell. |
| 667 | nsFrameConstructorState(PresShell* aPresShell, |
| 668 | nsContainerFrame* aFixedContainingBlock, |
| 669 | nsContainerFrame* aAbsoluteContainingBlock, |
| 670 | nsContainerFrame* aFloatContainingBlock); |
| 671 | |
| 672 | ~nsFrameConstructorState(); |
| 673 | |
| 674 | // Process the frame insertions for all the out-of-flow nsAbsoluteItems. |
| 675 | void ProcessFrameInsertionsForAllLists(); |
| 676 | |
| 677 | // Function to push the existing absolute containing block state and |
| 678 | // create a new scope. Code that uses this function should get matching |
| 679 | // logic in GetAbsoluteContainingBlock. |
| 680 | // Also makes aNewAbsoluteContainingBlock the containing block for |
| 681 | // fixed-pos elements if necessary. |
| 682 | // aPositionedFrame is the frame whose style actually makes |
| 683 | // aNewAbsoluteContainingBlock a containing block. E.g. for a scrollable |
| 684 | // element aPositionedFrame is the element's primary frame and |
| 685 | // aNewAbsoluteContainingBlock is the scrolled frame. |
| 686 | void PushAbsoluteContainingBlock( |
| 687 | nsContainerFrame* aNewAbsoluteContainingBlock, nsIFrame* aPositionedFrame, |
| 688 | nsFrameConstructorSaveState& aSaveState); |
| 689 | |
| 690 | // Function to forbid floats descendants under aFloatCBCandidate, or open a |
| 691 | // new float containing block scope for aFloatCBCandidate. The current |
| 692 | // state is saved in aSaveState if a new scope is pushed. |
| 693 | void MaybePushFloatContainingBlock(nsContainerFrame* aFloatCBCandidate, |
| 694 | nsFrameConstructorSaveState& aSaveState); |
| 695 | |
| 696 | // Helper function for MaybePushFloatContainingBlock(). |
| 697 | void PushFloatContainingBlock(nsContainerFrame* aNewFloatContainingBlock, |
| 698 | nsFrameConstructorSaveState& aSaveState); |
| 699 | |
| 700 | // Function to return the proper geometric parent for a frame with display |
| 701 | // struct given by aStyleDisplay and parent's frame given by |
| 702 | // aContentParentFrame. |
| 703 | nsContainerFrame* GetGeometricParent( |
| 704 | const nsStyleDisplay& aStyleDisplay, |
| 705 | nsContainerFrame* aContentParentFrame) const; |
| 706 | |
| 707 | // Collect absolute frames in mAbsoluteList which are proper descendants |
| 708 | // of aNewParent, and reparent them to aNewParent. |
| 709 | // |
| 710 | // Note: This function does something unusual that moves absolute items |
| 711 | // after their frames are constructed under a column hierarchy which has |
| 712 | // column-span elements. Do not use this if you're not dealing with |
| 713 | // columns. |
| 714 | void ReparentAbsoluteItems(nsContainerFrame* aNewParent); |
| 715 | |
| 716 | // Collect floats in mFloatedList which are proper descendants of aNewParent, |
| 717 | // and reparent them to aNewParent. |
| 718 | // |
| 719 | // Note: This function does something unusual that moves floats after their |
| 720 | // frames are constructed under a column hierarchy which has column-span |
| 721 | // elements. Do not use this if you're not dealing with columns. |
| 722 | void ReparentFloats(nsContainerFrame* aNewParent); |
| 723 | |
| 724 | /** |
| 725 | * Function to add a new frame to the right frame list. This MUST be called |
| 726 | * on frames before their children have been processed if the frames might |
| 727 | * conceivably be out-of-flow; otherwise cleanup in error cases won't work |
| 728 | * right. Also, this MUST be called on frames after they have been |
| 729 | * initialized. |
| 730 | * @param aNewFrame the frame to add |
| 731 | * @param aFrameList the list to add in-flow frames to |
| 732 | * @param aContent the content pointer for aNewFrame |
| 733 | * @param aParentFrame the parent frame for the content if it were in-flow |
| 734 | * @param aCanBePositioned pass false if the frame isn't allowed to be |
| 735 | * positioned |
| 736 | * @param aCanBeFloated pass false if the frame isn't allowed to be |
| 737 | * floated |
| 738 | */ |
| 739 | void AddChild(nsIFrame* aNewFrame, nsFrameList& aFrameList, |
| 740 | nsIContent* aContent, nsContainerFrame* aParentFrame, |
| 741 | bool aCanBePositioned = true, bool aCanBeFloated = true, |
| 742 | bool aInsertAfter = false, |
| 743 | nsIFrame* aInsertAfterFrame = nullptr); |
| 744 | |
| 745 | /** |
| 746 | * Function to return the fixed-pos element list. Normally this will just |
| 747 | * hand back the fixed-pos element list, but in case we're dealing with a |
| 748 | * transformed element that's acting as an abs-pos and fixed-pos container, |
| 749 | * we'll hand back the abs-pos list. Callers should use this function if they |
| 750 | * want to get the list acting as the fixed-pos item parent. |
| 751 | */ |
| 752 | AbsoluteFrameList& GetFixedList() { return *mFixedList; } |
| 753 | const AbsoluteFrameList& GetFixedList() const { return *mFixedList; } |
| 754 | |
| 755 | protected: |
| 756 | friend class nsFrameConstructorSaveState; |
| 757 | |
| 758 | /** |
| 759 | * ProcessFrameInsertions takes the frames in aFrameList and adds them as |
| 760 | * kids to the aChildListID child list of |aFrameList.containingBlock|. |
| 761 | */ |
| 762 | void ProcessFrameInsertions(AbsoluteFrameList& aFrameList, |
| 763 | mozilla::FrameChildListID aChildListID); |
| 764 | |
| 765 | /** |
| 766 | * GetOutOfFlowFrameList selects the out-of-flow frame list the new |
| 767 | * frame should be added to. If the frame shouldn't be added to any |
| 768 | * out-of-flow list, it returns nullptr. The corresponding type of |
| 769 | * placeholder is also returned via the aPlaceholderType parameter |
| 770 | * if this method doesn't return nullptr. The caller should check |
| 771 | * whether the returned list really has a containing block. |
| 772 | */ |
| 773 | AbsoluteFrameList* GetOutOfFlowFrameList(nsIFrame* aNewFrame, |
| 774 | bool aCanBePositioned, |
| 775 | bool aCanBeFloated, |
| 776 | nsFrameState* aPlaceholderType); |
| 777 | }; |
| 778 | |
| 779 | nsFrameConstructorState::nsFrameConstructorState( |
| 780 | PresShell* aPresShell, nsContainerFrame* aFixedContainingBlock, |
| 781 | nsContainerFrame* aAbsoluteContainingBlock, |
| 782 | nsContainerFrame* aFloatContainingBlock, |
| 783 | already_AddRefed<nsILayoutHistoryState> aHistoryState) |
| 784 | : mPresContext(aPresShell->GetPresContext()), |
| 785 | mPresShell(aPresShell), |
| 786 | mFrameConstructor(aPresShell->FrameConstructor()), |
| 787 | mFloatedList(aFloatContainingBlock), |
| 788 | mAbsoluteList(aAbsoluteContainingBlock), |
| 789 | mTopLayerAbsoluteList(mFrameConstructor->GetCanvasFrame()), |
| 790 | mAncestorFixedList(aFixedContainingBlock), |
| 791 | mRealFixedList( |
| 792 | static_cast<nsContainerFrame*>(mFrameConstructor->GetRootFrame())), |
| 793 | // See PushAbsoluteContaningBlock below |
| 794 | mFrameState(aHistoryState), |
| 795 | mCreatingExtraFrames(false), |
| 796 | mHasRenderedLegend(false) { |
| 797 | MOZ_COUNT_CTOR(nsFrameConstructorState)do { static_assert(std::is_class_v<nsFrameConstructorState >, "Token '" "nsFrameConstructorState" "' is not a class type." ); static_assert(!std::is_base_of_v<nsISupports, nsFrameConstructorState >, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogCtor((void*)this, "nsFrameConstructorState" , sizeof(*this)); } while (0); |
| 798 | mFixedList = [&] { |
| 799 | if (aFixedContainingBlock == aAbsoluteContainingBlock) { |
| 800 | return &mAbsoluteList; |
| 801 | } |
| 802 | if (aAbsoluteContainingBlock == mRealFixedList.mContainingBlock) { |
| 803 | return &mRealFixedList; |
| 804 | } |
| 805 | return &mAncestorFixedList; |
| 806 | }(); |
| 807 | } |
| 808 | |
| 809 | nsFrameConstructorState::nsFrameConstructorState( |
| 810 | PresShell* aPresShell, nsContainerFrame* aFixedContainingBlock, |
| 811 | nsContainerFrame* aAbsoluteContainingBlock, |
| 812 | nsContainerFrame* aFloatContainingBlock) |
| 813 | : nsFrameConstructorState( |
| 814 | aPresShell, aFixedContainingBlock, aAbsoluteContainingBlock, |
| 815 | aFloatContainingBlock, |
| 816 | aPresShell->GetDocument()->GetLayoutHistoryState()) {} |
| 817 | |
| 818 | nsFrameConstructorState::~nsFrameConstructorState() { |
| 819 | MOZ_COUNT_DTOR(nsFrameConstructorState)do { static_assert(std::is_class_v<nsFrameConstructorState >, "Token '" "nsFrameConstructorState" "' is not a class type." ); static_assert(!std::is_base_of_v<nsISupports, nsFrameConstructorState >, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogDtor((void*)this, "nsFrameConstructorState" , sizeof(*this)); } while (0); |
| 820 | ProcessFrameInsertionsForAllLists(); |
| 821 | for (auto& content : Reversed(mGeneratedContentWithInitializer)) { |
| 822 | content->RemoveProperty(nsGkAtoms::genConInitializerProperty); |
| 823 | } |
| 824 | } |
| 825 | |
| 826 | void nsFrameConstructorState::ProcessFrameInsertionsForAllLists() { |
| 827 | ProcessFrameInsertions(mFloatedList, FrameChildListID::Float); |
| 828 | ProcessFrameInsertions(mAbsoluteList, FrameChildListID::Absolute); |
| 829 | ProcessFrameInsertions(mTopLayerAbsoluteList, FrameChildListID::Absolute); |
| 830 | ProcessFrameInsertions(*mFixedList, FrameChildListID::Absolute); |
| 831 | ProcessFrameInsertions(mRealFixedList, FrameChildListID::Absolute); |
| 832 | } |
| 833 | |
| 834 | void nsFrameConstructorState::PushAbsoluteContainingBlock( |
| 835 | nsContainerFrame* aNewAbsoluteContainingBlock, nsIFrame* aPositionedFrame, |
| 836 | nsFrameConstructorSaveState& aSaveState) { |
| 837 | MOZ_ASSERT(!!aNewAbsoluteContainingBlock == !!aPositionedFrame,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!!aNewAbsoluteContainingBlock == !!aPositionedFrame) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!!aNewAbsoluteContainingBlock == !!aPositionedFrame) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!!aNewAbsoluteContainingBlock == !!aPositionedFrame" " (" "We should have both or none" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 838); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!!aNewAbsoluteContainingBlock == !!aPositionedFrame" ") (" "We should have both or none" ")"); do { MOZ_CrashSequence (__null, 838); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false) |
| 838 | "We should have both or none")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!!aNewAbsoluteContainingBlock == !!aPositionedFrame) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!!aNewAbsoluteContainingBlock == !!aPositionedFrame) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!!aNewAbsoluteContainingBlock == !!aPositionedFrame" " (" "We should have both or none" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 838); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!!aNewAbsoluteContainingBlock == !!aPositionedFrame" ") (" "We should have both or none" ")"); do { MOZ_CrashSequence (__null, 838); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 839 | aSaveState.mList = &mAbsoluteList; |
| 840 | aSaveState.mChildListID = FrameChildListID::Absolute; |
| 841 | aSaveState.mState = this; |
| 842 | aSaveState.mSavedList = std::move(mAbsoluteList); |
| 843 | aSaveState.mSavedFixedList = mFixedList; |
| 844 | mAbsoluteList = AbsoluteFrameList(aNewAbsoluteContainingBlock); |
| 845 | mFixedList = [&] { |
| 846 | if (!aPositionedFrame || aPositionedFrame->IsFixedPosContainingBlock()) { |
| 847 | // See if we need to treat abspos and fixedpos the same. This happens if |
| 848 | // we're a transformed/filtered/etc element, or if we force a null abspos |
| 849 | // containing block (for mathml for example). |
| 850 | return &mAbsoluteList; |
| 851 | } |
| 852 | if (aPositionedFrame->StyleDisplay()->mTopLayer == StyleTopLayer::Auto) { |
| 853 | // If our new CB is in the top layer, and isn't a fixed CB itself, we also |
| 854 | // escape the usual containment. |
| 855 | return &mRealFixedList; |
| 856 | } |
| 857 | if (mFixedList == &mAbsoluteList) { |
| 858 | // If we were pointing to our old absolute list, keep pointing to it. |
| 859 | return &aSaveState.mSavedList; |
| 860 | } |
| 861 | // Otherwise keep pointing to the current thing (another ancestor's |
| 862 | // absolute list, or the real fixed list, doesn't matter). |
| 863 | return mFixedList; |
| 864 | }(); |
| 865 | |
| 866 | if (aNewAbsoluteContainingBlock && |
| 867 | !aNewAbsoluteContainingBlock->IsAbsoluteContainer()) { |
| 868 | aNewAbsoluteContainingBlock->MarkAsAbsoluteContainingBlock(); |
| 869 | } |
| 870 | } |
| 871 | |
| 872 | void nsFrameConstructorState::MaybePushFloatContainingBlock( |
| 873 | nsContainerFrame* aFloatCBCandidate, |
| 874 | nsFrameConstructorSaveState& aSaveState) { |
| 875 | // The logic here needs to match the logic in GetFloatContainingBlock(). |
| 876 | if (ShouldSuppressFloatingOfDescendants(aFloatCBCandidate)) { |
| 877 | // Pushing a null float containing block forbids any frames from being |
| 878 | // floated until a new float containing block is pushed. See implementation |
| 879 | // of nsFrameConstructorState::AddChild(). |
| 880 | // |
| 881 | // XXX we should get rid of null float containing blocks and teach the |
| 882 | // various frame classes to deal with floats instead. |
| 883 | PushFloatContainingBlock(nullptr, aSaveState); |
| 884 | } else if (aFloatCBCandidate->IsFloatContainingBlock()) { |
| 885 | PushFloatContainingBlock(aFloatCBCandidate, aSaveState); |
| 886 | } |
| 887 | |
| 888 | #ifdef DEBUG1 |
| 889 | mFloatCBCandidate = aFloatCBCandidate; |
| 890 | #endif |
| 891 | } |
| 892 | |
| 893 | void nsFrameConstructorState::PushFloatContainingBlock( |
| 894 | nsContainerFrame* aNewFloatContainingBlock, |
| 895 | nsFrameConstructorSaveState& aSaveState) { |
| 896 | MOZ_ASSERT(!aNewFloatContainingBlock ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aNewFloatContainingBlock || aNewFloatContainingBlock ->IsFloatContainingBlock())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aNewFloatContainingBlock || aNewFloatContainingBlock->IsFloatContainingBlock()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("!aNewFloatContainingBlock || aNewFloatContainingBlock->IsFloatContainingBlock()" " (" "Please push a real float containing block!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 898); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aNewFloatContainingBlock || aNewFloatContainingBlock->IsFloatContainingBlock()" ") (" "Please push a real float containing block!" ")"); do { MOZ_CrashSequence(__null, 898); __attribute__((nomerge)) ::abort (); } while (false); } } while (false) |
| 897 | aNewFloatContainingBlock->IsFloatContainingBlock(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aNewFloatContainingBlock || aNewFloatContainingBlock ->IsFloatContainingBlock())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aNewFloatContainingBlock || aNewFloatContainingBlock->IsFloatContainingBlock()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("!aNewFloatContainingBlock || aNewFloatContainingBlock->IsFloatContainingBlock()" " (" "Please push a real float containing block!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 898); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aNewFloatContainingBlock || aNewFloatContainingBlock->IsFloatContainingBlock()" ") (" "Please push a real float containing block!" ")"); do { MOZ_CrashSequence(__null, 898); __attribute__((nomerge)) ::abort (); } while (false); } } while (false) |
| 898 | "Please push a real float containing block!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aNewFloatContainingBlock || aNewFloatContainingBlock ->IsFloatContainingBlock())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aNewFloatContainingBlock || aNewFloatContainingBlock->IsFloatContainingBlock()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("!aNewFloatContainingBlock || aNewFloatContainingBlock->IsFloatContainingBlock()" " (" "Please push a real float containing block!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 898); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aNewFloatContainingBlock || aNewFloatContainingBlock->IsFloatContainingBlock()" ") (" "Please push a real float containing block!" ")"); do { MOZ_CrashSequence(__null, 898); __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 899 | NS_ASSERTION(do { if (!(!aNewFloatContainingBlock || !ShouldSuppressFloatingOfDescendants (aNewFloatContainingBlock))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "We should not push a frame that is supposed to _suppress_ " "floats as a float containing block!", "!aNewFloatContainingBlock || !ShouldSuppressFloatingOfDescendants(aNewFloatContainingBlock)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 903); MOZ_PretendNoReturn (); } } while (0) |
| 900 | !aNewFloatContainingBlock ||do { if (!(!aNewFloatContainingBlock || !ShouldSuppressFloatingOfDescendants (aNewFloatContainingBlock))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "We should not push a frame that is supposed to _suppress_ " "floats as a float containing block!", "!aNewFloatContainingBlock || !ShouldSuppressFloatingOfDescendants(aNewFloatContainingBlock)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 903); MOZ_PretendNoReturn (); } } while (0) |
| 901 | !ShouldSuppressFloatingOfDescendants(aNewFloatContainingBlock),do { if (!(!aNewFloatContainingBlock || !ShouldSuppressFloatingOfDescendants (aNewFloatContainingBlock))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "We should not push a frame that is supposed to _suppress_ " "floats as a float containing block!", "!aNewFloatContainingBlock || !ShouldSuppressFloatingOfDescendants(aNewFloatContainingBlock)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 903); MOZ_PretendNoReturn (); } } while (0) |
| 902 | "We should not push a frame that is supposed to _suppress_ "do { if (!(!aNewFloatContainingBlock || !ShouldSuppressFloatingOfDescendants (aNewFloatContainingBlock))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "We should not push a frame that is supposed to _suppress_ " "floats as a float containing block!", "!aNewFloatContainingBlock || !ShouldSuppressFloatingOfDescendants(aNewFloatContainingBlock)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 903); MOZ_PretendNoReturn (); } } while (0) |
| 903 | "floats as a float containing block!")do { if (!(!aNewFloatContainingBlock || !ShouldSuppressFloatingOfDescendants (aNewFloatContainingBlock))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "We should not push a frame that is supposed to _suppress_ " "floats as a float containing block!", "!aNewFloatContainingBlock || !ShouldSuppressFloatingOfDescendants(aNewFloatContainingBlock)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 903); MOZ_PretendNoReturn (); } } while (0); |
| 904 | aSaveState.mList = &mFloatedList; |
| 905 | aSaveState.mSavedList = std::move(mFloatedList); |
| 906 | aSaveState.mChildListID = FrameChildListID::Float; |
| 907 | aSaveState.mState = this; |
| 908 | mFloatedList = AbsoluteFrameList(aNewFloatContainingBlock); |
| 909 | } |
| 910 | |
| 911 | nsContainerFrame* nsFrameConstructorState::GetGeometricParent( |
| 912 | const nsStyleDisplay& aStyleDisplay, |
| 913 | nsContainerFrame* aContentParentFrame) const { |
| 914 | // If there is no container for a fixed, absolute, or floating root |
| 915 | // frame, we will ignore the positioning. This hack is originally |
| 916 | // brought to you by the letter T: tables, since other roots don't |
| 917 | // even call into this code. See bug 178855. |
| 918 | // |
| 919 | // XXX Disabling positioning in this case is a hack. If one was so inclined, |
| 920 | // one could support this either by (1) inserting a dummy block between the |
| 921 | // table and the canvas or (2) teaching the canvas how to reflow positioned |
| 922 | // elements. (1) has the usual problems when multiple frames share the same |
| 923 | // content (notice all the special cases in this file dealing with inner |
| 924 | // tables and table wrappers which share the same content). (2) requires some |
| 925 | // work and possible factoring. |
| 926 | // |
| 927 | // XXXbz couldn't we just force position to "static" on roots and |
| 928 | // float to "none"? That's OK per CSS 2.1, as far as I can tell. |
| 929 | |
| 930 | if (aContentParentFrame && aContentParentFrame->IsInSVGTextSubtree()) { |
| 931 | return aContentParentFrame; |
| 932 | } |
| 933 | |
| 934 | if (aStyleDisplay.IsFloatingStyle() && mFloatedList.mContainingBlock) { |
| 935 | NS_ASSERTION(!aStyleDisplay.IsAbsolutelyPositionedStyle(),do { if (!(!aStyleDisplay.IsAbsolutelyPositionedStyle())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Absolutely positioned _and_ floating?", "!aStyleDisplay.IsAbsolutelyPositionedStyle()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 936); MOZ_PretendNoReturn(); } } while (0) |
| 936 | "Absolutely positioned _and_ floating?")do { if (!(!aStyleDisplay.IsAbsolutelyPositionedStyle())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Absolutely positioned _and_ floating?", "!aStyleDisplay.IsAbsolutelyPositionedStyle()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 936); MOZ_PretendNoReturn(); } } while (0); |
| 937 | return mFloatedList.mContainingBlock; |
| 938 | } |
| 939 | |
| 940 | if (aStyleDisplay.mTopLayer != StyleTopLayer::None) { |
| 941 | MOZ_ASSERT(aStyleDisplay.mTopLayer == StyleTopLayer::Auto,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStyleDisplay.mTopLayer == StyleTopLayer::Auto)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aStyleDisplay.mTopLayer == StyleTopLayer::Auto))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aStyleDisplay.mTopLayer == StyleTopLayer::Auto" " (" "-moz-top-layer should be either none or auto" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 942); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStyleDisplay.mTopLayer == StyleTopLayer::Auto" ") (" "-moz-top-layer should be either none or auto" ")"); do { MOZ_CrashSequence(__null, 942); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 942 | "-moz-top-layer should be either none or auto")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStyleDisplay.mTopLayer == StyleTopLayer::Auto)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aStyleDisplay.mTopLayer == StyleTopLayer::Auto))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aStyleDisplay.mTopLayer == StyleTopLayer::Auto" " (" "-moz-top-layer should be either none or auto" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 942); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStyleDisplay.mTopLayer == StyleTopLayer::Auto" ") (" "-moz-top-layer should be either none or auto" ")"); do { MOZ_CrashSequence(__null, 942); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 943 | MOZ_ASSERT(aStyleDisplay.IsAbsolutelyPositionedStyle(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStyleDisplay.IsAbsolutelyPositionedStyle())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aStyleDisplay.IsAbsolutelyPositionedStyle()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStyleDisplay.IsAbsolutelyPositionedStyle()" " (" "Top layer items should always be absolutely positioned" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 944 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStyleDisplay.IsAbsolutelyPositionedStyle()" ") (" "Top layer items should always be absolutely positioned" ")"); do { MOZ_CrashSequence(__null, 944); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 944 | "Top layer items should always be absolutely positioned")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStyleDisplay.IsAbsolutelyPositionedStyle())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aStyleDisplay.IsAbsolutelyPositionedStyle()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStyleDisplay.IsAbsolutelyPositionedStyle()" " (" "Top layer items should always be absolutely positioned" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 944 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStyleDisplay.IsAbsolutelyPositionedStyle()" ") (" "Top layer items should always be absolutely positioned" ")"); do { MOZ_CrashSequence(__null, 944); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 945 | if (aStyleDisplay.mPosition == StylePositionProperty::Fixed) { |
| 946 | MOZ_ASSERT(mRealFixedList.mContainingBlock, "No root frame?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(mRealFixedList.mContainingBlock)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mRealFixedList.mContainingBlock ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "mRealFixedList.mContainingBlock" " (" "No root frame?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 946); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mRealFixedList.mContainingBlock" ") (" "No root frame?" ")"); do { MOZ_CrashSequence(__null, 946 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 947 | return mRealFixedList.mContainingBlock; |
| 948 | } |
| 949 | MOZ_ASSERT(aStyleDisplay.mPosition == StylePositionProperty::Absolute)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStyleDisplay.mPosition == StylePositionProperty::Absolute )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aStyleDisplay.mPosition == StylePositionProperty::Absolute ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aStyleDisplay.mPosition == StylePositionProperty::Absolute", "./../../../layout/base/nsCSSFrameConstructor.cpp", 949); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aStyleDisplay.mPosition == StylePositionProperty::Absolute" ")"); do { MOZ_CrashSequence(__null, 949); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 950 | MOZ_ASSERT(mTopLayerAbsoluteList.mContainingBlock)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mTopLayerAbsoluteList.mContainingBlock)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(mTopLayerAbsoluteList.mContainingBlock))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mTopLayerAbsoluteList.mContainingBlock" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 950); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "mTopLayerAbsoluteList.mContainingBlock" ")" ); do { MOZ_CrashSequence(__null, 950); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 951 | return mTopLayerAbsoluteList.mContainingBlock; |
| 952 | } |
| 953 | |
| 954 | if (aStyleDisplay.mPosition == StylePositionProperty::Absolute && |
| 955 | mAbsoluteList.mContainingBlock) { |
| 956 | return mAbsoluteList.mContainingBlock; |
| 957 | } |
| 958 | |
| 959 | if (aStyleDisplay.mPosition == StylePositionProperty::Fixed && |
| 960 | mFixedList->mContainingBlock) { |
| 961 | return mFixedList->mContainingBlock; |
| 962 | } |
| 963 | |
| 964 | return aContentParentFrame; |
| 965 | } |
| 966 | |
| 967 | void nsFrameConstructorState::ReparentAbsoluteItems( |
| 968 | nsContainerFrame* aNewParent) { |
| 969 | // Bug 1491727: This function might not conform to the spec. See |
| 970 | // https://github.com/w3c/csswg-drafts/issues/1894. |
| 971 | |
| 972 | MOZ_ASSERT(aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)" " (" "Restrict the usage under column hierarchy." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 973); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)" ") (" "Restrict the usage under column hierarchy." ")"); do { MOZ_CrashSequence(__null, 973); __attribute__((nomerge)) ::abort (); } while (false); } } while (false) |
| 973 | "Restrict the usage under column hierarchy.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)" " (" "Restrict the usage under column hierarchy." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 973); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)" ") (" "Restrict the usage under column hierarchy." ")"); do { MOZ_CrashSequence(__null, 973); __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 974 | |
| 975 | AbsoluteFrameList newAbsoluteItems(aNewParent); |
| 976 | |
| 977 | nsIFrame* current = mAbsoluteList.FirstChild(); |
| 978 | while (current) { |
| 979 | nsIFrame* placeholder = current->GetPlaceholderFrame(); |
| 980 | |
| 981 | if (nsLayoutUtils::IsProperAncestorFrame(aNewParent, placeholder)) { |
| 982 | nsIFrame* next = current->GetNextSibling(); |
| 983 | mAbsoluteList.RemoveFrame(current); |
| 984 | newAbsoluteItems.AppendFrame(aNewParent, current); |
| 985 | current = next; |
| 986 | } else { |
| 987 | current = current->GetNextSibling(); |
| 988 | } |
| 989 | } |
| 990 | |
| 991 | if (newAbsoluteItems.NotEmpty()) { |
| 992 | // ~nsFrameConstructorSaveState() will move newAbsoluteItems to |
| 993 | // aNewParent's absolute child list. |
| 994 | nsFrameConstructorSaveState absoluteSaveState; |
| 995 | |
| 996 | // It doesn't matter whether aNewParent has position style or not. Caller |
| 997 | // won't call us if we can't have absolute children. |
| 998 | PushAbsoluteContainingBlock(aNewParent, aNewParent, absoluteSaveState); |
| 999 | mAbsoluteList = std::move(newAbsoluteItems); |
| 1000 | } |
| 1001 | } |
| 1002 | |
| 1003 | void nsFrameConstructorState::ReparentFloats(nsContainerFrame* aNewParent) { |
| 1004 | MOZ_ASSERT(aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)" " (" "Restrict the usage under column hierarchy." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1005); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)" ") (" "Restrict the usage under column hierarchy." ")"); do { MOZ_CrashSequence(__null, 1005); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 1005 | "Restrict the usage under column hierarchy.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)" " (" "Restrict the usage under column hierarchy." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1005); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNewParent->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)" ") (" "Restrict the usage under column hierarchy." ")"); do { MOZ_CrashSequence(__null, 1005); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 1006 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewParent->IsFloatContainingBlock())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aNewParent->IsFloatContainingBlock()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNewParent->IsFloatContainingBlock()" " (" "Why calling this method if aNewParent is not a float containing block?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 1008 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNewParent->IsFloatContainingBlock()" ") (" "Why calling this method if aNewParent is not a float containing block?" ")"); do { MOZ_CrashSequence(__null, 1008); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1007 | aNewParent->IsFloatContainingBlock(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewParent->IsFloatContainingBlock())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aNewParent->IsFloatContainingBlock()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNewParent->IsFloatContainingBlock()" " (" "Why calling this method if aNewParent is not a float containing block?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 1008 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNewParent->IsFloatContainingBlock()" ") (" "Why calling this method if aNewParent is not a float containing block?" ")"); do { MOZ_CrashSequence(__null, 1008); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1008 | "Why calling this method if aNewParent is not a float containing block?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewParent->IsFloatContainingBlock())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aNewParent->IsFloatContainingBlock()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNewParent->IsFloatContainingBlock()" " (" "Why calling this method if aNewParent is not a float containing block?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 1008 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNewParent->IsFloatContainingBlock()" ") (" "Why calling this method if aNewParent is not a float containing block?" ")"); do { MOZ_CrashSequence(__null, 1008); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1009 | |
| 1010 | // Gather floats that should reparent under aNewParent. |
| 1011 | AbsoluteFrameList floats(aNewParent); |
| 1012 | nsIFrame* current = mFloatedList.FirstChild(); |
| 1013 | while (current) { |
| 1014 | nsIFrame* placeholder = current->GetPlaceholderFrame(); |
| 1015 | nsIFrame* next = current->GetNextSibling(); |
| 1016 | if (nsLayoutUtils::IsProperAncestorFrame(aNewParent, placeholder)) { |
| 1017 | mFloatedList.RemoveFrame(current); |
| 1018 | floats.AppendFrame(aNewParent, current); |
| 1019 | } |
| 1020 | current = next; |
| 1021 | } |
| 1022 | |
| 1023 | if (floats.NotEmpty()) { |
| 1024 | // Make floats move into aNewParent's float child list in |
| 1025 | // ~nsFrameConstructorSaveState() when destructing floatSaveState. |
| 1026 | nsFrameConstructorSaveState floatSaveState; |
| 1027 | PushFloatContainingBlock(aNewParent, floatSaveState); |
| 1028 | mFloatedList = std::move(floats); |
| 1029 | } |
| 1030 | } |
| 1031 | |
| 1032 | AbsoluteFrameList* nsFrameConstructorState::GetOutOfFlowFrameList( |
| 1033 | nsIFrame* aNewFrame, bool aCanBePositioned, bool aCanBeFloated, |
| 1034 | nsFrameState* aPlaceholderType) { |
| 1035 | const nsStyleDisplay* disp = aNewFrame->StyleDisplay(); |
| 1036 | if (aCanBeFloated && disp->IsFloatingStyle()) { |
| 1037 | *aPlaceholderType = PLACEHOLDER_FOR_FLOAT; |
| 1038 | return &mFloatedList; |
| 1039 | } |
| 1040 | |
| 1041 | if (aCanBePositioned) { |
| 1042 | if (disp->mTopLayer != StyleTopLayer::None) { |
| 1043 | *aPlaceholderType = PLACEHOLDER_FOR_TOPLAYER; |
| 1044 | if (disp->mPosition == StylePositionProperty::Fixed) { |
| 1045 | *aPlaceholderType |= PLACEHOLDER_FOR_FIXEDPOS; |
| 1046 | return &mRealFixedList; |
| 1047 | } |
| 1048 | *aPlaceholderType |= PLACEHOLDER_FOR_ABSPOS; |
| 1049 | return &mTopLayerAbsoluteList; |
| 1050 | } |
| 1051 | if (disp->mPosition == StylePositionProperty::Absolute) { |
| 1052 | *aPlaceholderType = PLACEHOLDER_FOR_ABSPOS; |
| 1053 | return &mAbsoluteList; |
| 1054 | } |
| 1055 | if (disp->mPosition == StylePositionProperty::Fixed) { |
| 1056 | *aPlaceholderType = PLACEHOLDER_FOR_FIXEDPOS; |
| 1057 | return mFixedList; |
| 1058 | } |
| 1059 | } |
| 1060 | return nullptr; |
| 1061 | } |
| 1062 | |
| 1063 | void nsFrameConstructorState::AddChild( |
| 1064 | nsIFrame* aNewFrame, nsFrameList& aFrameList, nsIContent* aContent, |
| 1065 | nsContainerFrame* aParentFrame, bool aCanBePositioned, bool aCanBeFloated, |
| 1066 | bool aInsertAfter, nsIFrame* aInsertAfterFrame) { |
| 1067 | MOZ_ASSERT(!aNewFrame->GetNextSibling(), "Shouldn't happen")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aNewFrame->GetNextSibling())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aNewFrame->GetNextSibling ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aNewFrame->GetNextSibling()" " (" "Shouldn't happen" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 1067); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!aNewFrame->GetNextSibling()" ") (" "Shouldn't happen" ")"); do { MOZ_CrashSequence(__null, 1067); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1068 | |
| 1069 | nsFrameState placeholderType = NS_FRAME_STATE_NONE; |
| 1070 | AbsoluteFrameList* outOfFlowFrameList = GetOutOfFlowFrameList( |
| 1071 | aNewFrame, aCanBePositioned, aCanBeFloated, &placeholderType); |
| 1072 | |
| 1073 | // The comments in GetGeometricParent regarding root table frames |
| 1074 | // all apply here, unfortunately. Thus, we need to check whether |
| 1075 | // the returned frame items really has containing block. |
| 1076 | nsFrameList* frameList; |
| 1077 | if (outOfFlowFrameList && outOfFlowFrameList->mContainingBlock) { |
| 1078 | MOZ_ASSERT(aNewFrame->GetParent() == outOfFlowFrameList->mContainingBlock,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewFrame->GetParent() == outOfFlowFrameList-> mContainingBlock)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewFrame->GetParent() == outOfFlowFrameList->mContainingBlock))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNewFrame->GetParent() == outOfFlowFrameList->mContainingBlock" " (" "Parent of the frame is not the containing block?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 1079); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aNewFrame->GetParent() == outOfFlowFrameList->mContainingBlock" ") (" "Parent of the frame is not the containing block?" ")" ); do { MOZ_CrashSequence(__null, 1079); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1079 | "Parent of the frame is not the containing block?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewFrame->GetParent() == outOfFlowFrameList-> mContainingBlock)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewFrame->GetParent() == outOfFlowFrameList->mContainingBlock))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNewFrame->GetParent() == outOfFlowFrameList->mContainingBlock" " (" "Parent of the frame is not the containing block?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 1079); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aNewFrame->GetParent() == outOfFlowFrameList->mContainingBlock" ") (" "Parent of the frame is not the containing block?" ")" ); do { MOZ_CrashSequence(__null, 1079); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1080 | frameList = outOfFlowFrameList; |
| 1081 | } else { |
| 1082 | frameList = &aFrameList; |
| 1083 | placeholderType = NS_FRAME_STATE_NONE; |
| 1084 | } |
| 1085 | |
| 1086 | if (placeholderType != NS_FRAME_STATE_NONE) { |
| 1087 | NS_ASSERTION(frameList != &aFrameList,do { if (!(frameList != &aFrameList)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Putting frame in-flow _and_ want a placeholder?", "frameList != &aFrameList" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 1088); MOZ_PretendNoReturn (); } } while (0) |
| 1088 | "Putting frame in-flow _and_ want a placeholder?")do { if (!(frameList != &aFrameList)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Putting frame in-flow _and_ want a placeholder?", "frameList != &aFrameList" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 1088); MOZ_PretendNoReturn (); } } while (0); |
| 1089 | nsIFrame* placeholderFrame = |
| 1090 | nsCSSFrameConstructor::CreatePlaceholderFrameFor( |
| 1091 | mPresShell, aContent, aNewFrame, aParentFrame, nullptr, |
| 1092 | placeholderType); |
| 1093 | |
| 1094 | placeholderFrame->AddStateBits(mAdditionalStateBits); |
| 1095 | // Add the placeholder frame to the flow |
| 1096 | aFrameList.AppendFrame(nullptr, placeholderFrame); |
| 1097 | } |
| 1098 | #ifdef DEBUG1 |
| 1099 | else { |
| 1100 | NS_ASSERTION(aNewFrame->GetParent() == aParentFrame,do { if (!(aNewFrame->GetParent() == aParentFrame)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "In-flow frame has wrong parent", "aNewFrame->GetParent() == aParentFrame" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 1101); MOZ_PretendNoReturn (); } } while (0) |
| 1101 | "In-flow frame has wrong parent")do { if (!(aNewFrame->GetParent() == aParentFrame)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "In-flow frame has wrong parent", "aNewFrame->GetParent() == aParentFrame" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 1101); MOZ_PretendNoReturn (); } } while (0); |
| 1102 | } |
| 1103 | #endif |
| 1104 | |
| 1105 | if (aInsertAfter) { |
| 1106 | frameList->InsertFrame(nullptr, aInsertAfterFrame, aNewFrame); |
| 1107 | } else { |
| 1108 | frameList->AppendFrame(nullptr, aNewFrame); |
| 1109 | } |
| 1110 | } |
| 1111 | |
| 1112 | // Some of this function's callers recurse 1000 levels deep in crashtests. On |
| 1113 | // platforms where stack limits are low, we can't afford to incorporate this |
| 1114 | // function's `AutoTArray`s into its callers' stack frames, so disable inlining. |
| 1115 | MOZ_NEVER_INLINE__attribute__((noinline)) void nsFrameConstructorState::ProcessFrameInsertions( |
| 1116 | AbsoluteFrameList& aFrameList, FrameChildListID aChildListID) { |
| 1117 | MOZ_ASSERT(&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 1120); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList" ")"); do { MOZ_CrashSequence(__null, 1120); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1118 | &aFrameList == &mTopLayerAbsoluteList ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 1120); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList" ")"); do { MOZ_CrashSequence(__null, 1120); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1119 | &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 1120); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList" ")"); do { MOZ_CrashSequence(__null, 1120); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1120 | &aFrameList == &mRealFixedList)do { static_assert( mozilla::detail::AssertionConditionType< decltype(&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 1120); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "&aFrameList == &mFloatedList || &aFrameList == &mAbsoluteList || &aFrameList == &mTopLayerAbsoluteList || &aFrameList == &mAncestorFixedList || &aFrameList == mFixedList || &aFrameList == &mRealFixedList" ")"); do { MOZ_CrashSequence(__null, 1120); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1121 | MOZ_ASSERT_IF(&aFrameList == &mFloatedList,do { if (&aFrameList == &mFloatedList) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(aChildListID == FrameChildListID::Float)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aChildListID == FrameChildListID ::Float))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aChildListID == FrameChildListID::Float", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1122); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildListID == FrameChildListID::Float" ")"); do { MOZ_CrashSequence(__null, 1122); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 1122 | aChildListID == FrameChildListID::Float)do { if (&aFrameList == &mFloatedList) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(aChildListID == FrameChildListID::Float)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aChildListID == FrameChildListID ::Float))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aChildListID == FrameChildListID::Float", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1122); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildListID == FrameChildListID::Float" ")"); do { MOZ_CrashSequence(__null, 1122); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 1123 | MOZ_ASSERT_IF(&aFrameList == &mAbsoluteList || &aFrameList == mFixedList,do { if (&aFrameList == &mAbsoluteList || &aFrameList == mFixedList) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(aChildListID == FrameChildListID::Absolute)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aChildListID == FrameChildListID::Absolute))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aChildListID == FrameChildListID::Absolute" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 1124); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aChildListID == FrameChildListID::Absolute" ")"); do { MOZ_CrashSequence(__null, 1124); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 1124 | aChildListID == FrameChildListID::Absolute)do { if (&aFrameList == &mAbsoluteList || &aFrameList == mFixedList) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(aChildListID == FrameChildListID::Absolute)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aChildListID == FrameChildListID::Absolute))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aChildListID == FrameChildListID::Absolute" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 1124); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aChildListID == FrameChildListID::Absolute" ")"); do { MOZ_CrashSequence(__null, 1124); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 1125 | MOZ_ASSERT_IF(&aFrameList == &mTopLayerAbsoluteList,do { if (&aFrameList == &mTopLayerAbsoluteList) { do { static_assert( mozilla::detail::AssertionConditionType<decltype (aChildListID == FrameChildListID::Absolute)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aChildListID == FrameChildListID ::Absolute))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aChildListID == FrameChildListID::Absolute", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1126); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildListID == FrameChildListID::Absolute" ")"); do { MOZ_CrashSequence(__null, 1126); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 1126 | aChildListID == FrameChildListID::Absolute)do { if (&aFrameList == &mTopLayerAbsoluteList) { do { static_assert( mozilla::detail::AssertionConditionType<decltype (aChildListID == FrameChildListID::Absolute)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aChildListID == FrameChildListID ::Absolute))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aChildListID == FrameChildListID::Absolute", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1126); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildListID == FrameChildListID::Absolute" ")"); do { MOZ_CrashSequence(__null, 1126); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 1127 | MOZ_ASSERT_IF(&aFrameList == mFixedList && &aFrameList != &mAbsoluteList,do { if (&aFrameList == mFixedList && &aFrameList != &mAbsoluteList) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(aChildListID == FrameChildListID ::Absolute)>::isValid, "invalid assertion condition"); if ( (__builtin_expect(!!(!(!!(aChildListID == FrameChildListID::Absolute ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aChildListID == FrameChildListID::Absolute", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1128); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildListID == FrameChildListID::Absolute" ")"); do { MOZ_CrashSequence(__null, 1128); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 1128 | aChildListID == FrameChildListID::Absolute)do { if (&aFrameList == mFixedList && &aFrameList != &mAbsoluteList) { do { static_assert( mozilla::detail ::AssertionConditionType<decltype(aChildListID == FrameChildListID ::Absolute)>::isValid, "invalid assertion condition"); if ( (__builtin_expect(!!(!(!!(aChildListID == FrameChildListID::Absolute ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aChildListID == FrameChildListID::Absolute", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1128); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildListID == FrameChildListID::Absolute" ")"); do { MOZ_CrashSequence(__null, 1128); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 1129 | MOZ_ASSERT_IF(&aFrameList == &mAncestorFixedList,do { if (&aFrameList == &mAncestorFixedList) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(aChildListID == FrameChildListID::Absolute)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aChildListID == FrameChildListID ::Absolute))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aChildListID == FrameChildListID::Absolute", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1130); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildListID == FrameChildListID::Absolute" ")"); do { MOZ_CrashSequence(__null, 1130); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 1130 | aChildListID == FrameChildListID::Absolute)do { if (&aFrameList == &mAncestorFixedList) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(aChildListID == FrameChildListID::Absolute)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aChildListID == FrameChildListID ::Absolute))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aChildListID == FrameChildListID::Absolute", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1130); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildListID == FrameChildListID::Absolute" ")"); do { MOZ_CrashSequence(__null, 1130); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 1131 | MOZ_ASSERT_IF(&aFrameList == &mRealFixedList,do { if (&aFrameList == &mRealFixedList) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(aChildListID == FrameChildListID::Absolute)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aChildListID == FrameChildListID ::Absolute))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aChildListID == FrameChildListID::Absolute", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1132); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildListID == FrameChildListID::Absolute" ")"); do { MOZ_CrashSequence(__null, 1132); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 1132 | aChildListID == FrameChildListID::Absolute)do { if (&aFrameList == &mRealFixedList) { do { static_assert ( mozilla::detail::AssertionConditionType<decltype(aChildListID == FrameChildListID::Absolute)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aChildListID == FrameChildListID ::Absolute))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aChildListID == FrameChildListID::Absolute", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1132); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildListID == FrameChildListID::Absolute" ")"); do { MOZ_CrashSequence(__null, 1132); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 1133 | |
| 1134 | if (aFrameList.IsEmpty()) { |
| 1135 | return; |
| 1136 | } |
| 1137 | |
| 1138 | nsContainerFrame* containingBlock = aFrameList.mContainingBlock; |
| 1139 | |
| 1140 | NS_ASSERTION(containingBlock, "Child list without containing block?")do { if (!(containingBlock)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Child list without containing block?", "containingBlock", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1140); MOZ_PretendNoReturn(); } } while (0); |
| 1141 | |
| 1142 | // Insert the frames hanging out in aItems. We can use SetInitialChildList() |
| 1143 | // if the containing block hasn't been reflowed yet (so NS_FRAME_FIRST_REFLOW |
| 1144 | // is set) and doesn't have any frames in the aChildListID child list yet. |
| 1145 | const nsFrameList& childList = containingBlock->GetChildList(aChildListID); |
| 1146 | if (childList.IsEmpty() && |
| 1147 | containingBlock->HasAnyStateBits(NS_FRAME_FIRST_REFLOW)) { |
| 1148 | // If we're injecting absolutely positioned frames, inject them on the |
| 1149 | // absolute containing block |
| 1150 | if (aChildListID == FrameChildListID::Absolute) { |
| 1151 | containingBlock->GetAbsoluteContainingBlock()->SetInitialChildList( |
| 1152 | containingBlock, aChildListID, std::move(aFrameList)); |
| 1153 | } else { |
| 1154 | containingBlock->SetInitialChildList(aChildListID, std::move(aFrameList)); |
| 1155 | } |
| 1156 | } else if (childList.IsEmpty() || |
| 1157 | aChildListID == FrameChildListID::Absolute) { |
| 1158 | // The order is not important for abs-pos/fixed-pos frame list, just |
| 1159 | // append the frame items to the list directly. |
| 1160 | mFrameConstructor->AppendFrames(containingBlock, aChildListID, |
| 1161 | std::move(aFrameList)); |
| 1162 | } else { |
| 1163 | MOZ_ASSERT(aChildListID == FrameChildListID::Float)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChildListID == FrameChildListID::Float)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aChildListID == FrameChildListID::Float))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aChildListID == FrameChildListID::Float" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 1163); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aChildListID == FrameChildListID::Float" ")" ); do { MOZ_CrashSequence(__null, 1163); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1164 | // Note that whether the frame construction context is doing an append or |
| 1165 | // not is not helpful here, since it could be appending to some frame in |
| 1166 | // the middle of the document, which means we're not necessarily |
| 1167 | // appending to the children of the containing block. |
| 1168 | // |
| 1169 | // We need to make sure the 'append to the end of document' case is fast. |
| 1170 | // So first test the last child of the containing block |
| 1171 | nsIFrame* lastChild = childList.LastChild(); |
| 1172 | lastChild = lastChild->FirstContinuation()->GetPlaceholderFrame(); |
| 1173 | |
| 1174 | // CompareTreePosition uses placeholder hierarchy for out of flow frames, |
| 1175 | // so this will make out-of-flows respect the ordering of placeholders, |
| 1176 | // which is great because it takes care of anonymous content. |
| 1177 | nsIFrame* firstNewFrame = aFrameList.FirstChild(); |
| 1178 | firstNewFrame = firstNewFrame->GetPlaceholderFrame(); |
| 1179 | |
| 1180 | // Cache the ancestor chain so that we can reuse it if needed. |
| 1181 | AutoTArray<const nsIFrame*, 20> firstNewFrameAncestors; |
| 1182 | const nsIFrame* notCommonAncestor = nsLayoutUtils::FillAncestors( |
| 1183 | firstNewFrame, containingBlock, &firstNewFrameAncestors); |
| 1184 | |
| 1185 | if (nsLayoutUtils::CompareTreePosition( |
| 1186 | lastChild, firstNewFrame, firstNewFrameAncestors, |
| 1187 | notCommonAncestor ? containingBlock : nullptr) < 0) { |
| 1188 | // lastChild comes before the new children, so just append |
| 1189 | mFrameConstructor->AppendFrames(containingBlock, aChildListID, |
| 1190 | std::move(aFrameList)); |
| 1191 | } else { |
| 1192 | // Try the other children. First collect them to an array so that a |
| 1193 | // reasonable fast binary search can be used to find the insertion point. |
| 1194 | AutoTArray<std::pair<nsIFrame*, nsPlaceholderFrame*>, 128> children; |
| 1195 | for (nsIFrame* f : childList) { |
| 1196 | children.AppendElement( |
| 1197 | std::make_pair(f, f->FirstContinuation()->GetPlaceholderFrame())); |
| 1198 | } |
| 1199 | |
| 1200 | nsIFrame* insertionPoint = nullptr; |
| 1201 | int32_t imin = 0; |
| 1202 | int32_t max = children.Length(); |
| 1203 | while (max > imin) { |
| 1204 | int32_t imid = imin + ((max - imin) / 2); |
| 1205 | const auto& pair = children[imid]; |
| 1206 | int32_t compare = nsLayoutUtils::CompareTreePosition( |
| 1207 | pair.second, firstNewFrame, firstNewFrameAncestors, |
| 1208 | notCommonAncestor ? containingBlock : nullptr); |
| 1209 | if (compare > 0) { |
| 1210 | // f is after the new frame. |
| 1211 | max = imid; |
| 1212 | insertionPoint = imid > 0 ? children[imid - 1].first : nullptr; |
| 1213 | } else if (compare < 0) { |
| 1214 | // f is before the new frame. |
| 1215 | imin = imid + 1; |
| 1216 | insertionPoint = pair.first; |
| 1217 | } else { |
| 1218 | // This is for the old behavior. Should be removed once it is |
| 1219 | // guaranteed that CompareTreePosition can't return 0! |
| 1220 | // See bug 928645. |
| 1221 | NS_WARNING("Something odd happening???")NS_DebugBreak(NS_DEBUG_WARNING, "Something odd happening???", nullptr, "./../../../layout/base/nsCSSFrameConstructor.cpp", 1221); |
| 1222 | insertionPoint = nullptr; |
| 1223 | for (auto [frame, placeholder] : children) { |
| 1224 | if (nsLayoutUtils::CompareTreePosition( |
| 1225 | placeholder, firstNewFrame, firstNewFrameAncestors, |
| 1226 | notCommonAncestor ? containingBlock : nullptr) > 0) { |
| 1227 | break; |
| 1228 | } |
| 1229 | insertionPoint = frame; |
| 1230 | } |
| 1231 | break; |
| 1232 | } |
| 1233 | } |
| 1234 | mFrameConstructor->InsertFrames(containingBlock, aChildListID, |
| 1235 | insertionPoint, std::move(aFrameList)); |
| 1236 | } |
| 1237 | } |
| 1238 | |
| 1239 | MOZ_ASSERT(aFrameList.IsEmpty(), "How did that happen?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrameList.IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aFrameList.IsEmpty()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("aFrameList.IsEmpty()" " (" "How did that happen?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1239); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrameList.IsEmpty()" ") (" "How did that happen?" ")"); do { MOZ_CrashSequence(__null , 1239); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 1240 | } |
| 1241 | |
| 1242 | nsFrameConstructorSaveState::~nsFrameConstructorSaveState() { |
| 1243 | // Restore the state |
| 1244 | if (mList) { |
| 1245 | MOZ_ASSERT(mState, "Can't have mList set without having a state!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(mState)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(mState))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mState" " (" "Can't have mList set without having a state!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 1245 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mState" ") (" "Can't have mList set without having a state!" ")"); do { MOZ_CrashSequence(__null, 1245); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1246 | mState->ProcessFrameInsertions(*mList, mChildListID); |
| 1247 | |
| 1248 | if (mList == &mState->mAbsoluteList) { |
| 1249 | mState->mAbsoluteList = std::move(mSavedList); |
| 1250 | mState->mFixedList = mSavedFixedList; |
| 1251 | } else { |
| 1252 | mState->mFloatedList = std::move(mSavedList); |
| 1253 | } |
| 1254 | |
| 1255 | MOZ_ASSERT(mSavedList.IsEmpty(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(mSavedList.IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mSavedList.IsEmpty()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("mSavedList.IsEmpty()" " (" "Frames in mSavedList should've moved back into mState!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 1256 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mSavedList.IsEmpty()" ") (" "Frames in mSavedList should've moved back into mState!" ")"); do { MOZ_CrashSequence(__null, 1256); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1256 | "Frames in mSavedList should've moved back into mState!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(mSavedList.IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mSavedList.IsEmpty()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("mSavedList.IsEmpty()" " (" "Frames in mSavedList should've moved back into mState!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 1256 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mSavedList.IsEmpty()" ") (" "Frames in mSavedList should've moved back into mState!" ")"); do { MOZ_CrashSequence(__null, 1256); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1257 | MOZ_ASSERT(!mList->LastChild() || !mList->LastChild()->GetNextSibling(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mList->LastChild() || !mList->LastChild()-> GetNextSibling())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mList->LastChild() || !mList ->LastChild()->GetNextSibling()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mList->LastChild() || !mList->LastChild()->GetNextSibling()" " (" "Something corrupted our list!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1258); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mList->LastChild() || !mList->LastChild()->GetNextSibling()" ") (" "Something corrupted our list!" ")"); do { MOZ_CrashSequence (__null, 1258); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 1258 | "Something corrupted our list!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mList->LastChild() || !mList->LastChild()-> GetNextSibling())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mList->LastChild() || !mList ->LastChild()->GetNextSibling()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mList->LastChild() || !mList->LastChild()->GetNextSibling()" " (" "Something corrupted our list!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1258); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mList->LastChild() || !mList->LastChild()->GetNextSibling()" ") (" "Something corrupted our list!" ")"); do { MOZ_CrashSequence (__null, 1258); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 1259 | } |
| 1260 | } |
| 1261 | |
| 1262 | /** |
| 1263 | * Moves aFrameList from aOldParent to aNewParent. This updates the parent |
| 1264 | * pointer of the frames in the list, and reparents their views as needed. |
| 1265 | * nsIFrame::SetParent sets the NS_FRAME_HAS_VIEW bit on aNewParent and its |
| 1266 | * ancestors as needed. Then it sets the list as the initial child list |
| 1267 | * on aNewParent, unless aNewParent either already has kids or has been |
| 1268 | * reflowed; in that case it appends the new frames. Note that this |
| 1269 | * method differs from ReparentFrames in that it doesn't change the kids' |
| 1270 | * style. |
| 1271 | */ |
| 1272 | // XXXbz Since this is only used for {ib} splits, could we just copy the view |
| 1273 | // bits from aOldParent to aNewParent and then use the |
| 1274 | // nsFrameList::ApplySetParent? That would still leave us doing two passes |
| 1275 | // over the list, of course; if we really wanted to we could factor out the |
| 1276 | // relevant part of ReparentFrameViewList, I suppose... Or just get rid of |
| 1277 | // views, which would make most of this function go away. |
| 1278 | static void MoveChildrenTo(nsIFrame* aOldParent, nsContainerFrame* aNewParent, |
| 1279 | nsFrameList& aFrameList) { |
| 1280 | aFrameList.ApplySetParent(aNewParent); |
| 1281 | |
| 1282 | if (aNewParent->PrincipalChildList().IsEmpty() && |
| 1283 | aNewParent->HasAnyStateBits(NS_FRAME_FIRST_REFLOW)) { |
| 1284 | aNewParent->SetInitialChildList(FrameChildListID::Principal, |
| 1285 | std::move(aFrameList)); |
| 1286 | } else { |
| 1287 | aNewParent->AppendFrames(FrameChildListID::Principal, |
| 1288 | std::move(aFrameList)); |
| 1289 | } |
| 1290 | } |
| 1291 | |
| 1292 | static void EnsureAutoPageName(nsFrameConstructorState& aState, |
| 1293 | const nsContainerFrame* const aFrame) { |
| 1294 | // Check if we need to figure out our used page name. |
| 1295 | // When building the entire document, this should only happen for the |
| 1296 | // root, which will mean the loop will immediately end. Either way, this will |
| 1297 | // only happen once for each time the frame constructor is run. |
| 1298 | if (aState.mAutoPageNameValue) { |
| 1299 | return; |
| 1300 | } |
| 1301 | |
| 1302 | for (const nsContainerFrame* frame = aFrame; frame; |
| 1303 | frame = frame->GetParent()) { |
| 1304 | if (const nsAtom* maybePageName = frame->GetStylePageName()) { |
| 1305 | aState.mAutoPageNameValue = maybePageName; |
| 1306 | return; |
| 1307 | } |
| 1308 | } |
| 1309 | // Ensure that a root with `page: auto` gets an empty page name |
| 1310 | // https://drafts.csswg.org/css-page-3/#using-named-pages |
| 1311 | aState.mAutoPageNameValue = nsGkAtoms::_empty; |
| 1312 | } |
| 1313 | |
| 1314 | nsCSSFrameConstructor::AutoFrameConstructionPageName:: |
| 1315 | AutoFrameConstructionPageName(nsFrameConstructorState& aState, |
| 1316 | nsIFrame* const aFrame) |
| 1317 | : mState(aState), mNameToRestore(nullptr) { |
| 1318 | if (!aState.mPresContext->IsPaginated()) { |
| 1319 | MOZ_ASSERT(!aState.mAutoPageNameValue,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aState.mAutoPageNameValue)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aState.mAutoPageNameValue)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aState.mAutoPageNameValue" " (" "Page name should not have been set" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1320); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aState.mAutoPageNameValue" ") (" "Page name should not have been set" ")"); do { MOZ_CrashSequence (__null, 1320); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 1320 | "Page name should not have been set")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aState.mAutoPageNameValue)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aState.mAutoPageNameValue)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aState.mAutoPageNameValue" " (" "Page name should not have been set" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1320); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aState.mAutoPageNameValue" ") (" "Page name should not have been set" ")"); do { MOZ_CrashSequence (__null, 1320); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 1321 | return; |
| 1322 | } |
| 1323 | #ifdef DEBUG1 |
| 1324 | MOZ_ASSERT(!aFrame->mWasVisitedByAutoFrameConstructionPageName,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aFrame->mWasVisitedByAutoFrameConstructionPageName )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aFrame->mWasVisitedByAutoFrameConstructionPageName ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aFrame->mWasVisitedByAutoFrameConstructionPageName" " (" "Frame should only have been visited once" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1325); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aFrame->mWasVisitedByAutoFrameConstructionPageName" ") (" "Frame should only have been visited once" ")"); do { MOZ_CrashSequence (__null, 1325); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 1325 | "Frame should only have been visited once")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aFrame->mWasVisitedByAutoFrameConstructionPageName )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aFrame->mWasVisitedByAutoFrameConstructionPageName ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aFrame->mWasVisitedByAutoFrameConstructionPageName" " (" "Frame should only have been visited once" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1325); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aFrame->mWasVisitedByAutoFrameConstructionPageName" ") (" "Frame should only have been visited once" ")"); do { MOZ_CrashSequence (__null, 1325); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 1326 | aFrame->mWasVisitedByAutoFrameConstructionPageName = true; |
| 1327 | #endif |
| 1328 | |
| 1329 | EnsureAutoPageName(aState, aFrame->GetParent()); |
| 1330 | mNameToRestore = aState.mAutoPageNameValue; |
| 1331 | |
| 1332 | MOZ_ASSERT(mNameToRestore,do { static_assert( mozilla::detail::AssertionConditionType< decltype(mNameToRestore)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mNameToRestore))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mNameToRestore" " (" "Page name should have been found by EnsureAutoPageName" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 1333 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mNameToRestore" ") (" "Page name should have been found by EnsureAutoPageName" ")" ); do { MOZ_CrashSequence(__null, 1333); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1333 | "Page name should have been found by EnsureAutoPageName")do { static_assert( mozilla::detail::AssertionConditionType< decltype(mNameToRestore)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mNameToRestore))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mNameToRestore" " (" "Page name should have been found by EnsureAutoPageName" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 1333 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mNameToRestore" ") (" "Page name should have been found by EnsureAutoPageName" ")" ); do { MOZ_CrashSequence(__null, 1333); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1334 | if (const nsAtom* maybePageName = aFrame->GetStylePageName()) { |
| 1335 | aState.mAutoPageNameValue = maybePageName; |
| 1336 | } |
| 1337 | aFrame->SetAutoPageValue(aState.mAutoPageNameValue); |
| 1338 | } |
| 1339 | |
| 1340 | nsCSSFrameConstructor::AutoFrameConstructionPageName:: |
| 1341 | ~AutoFrameConstructionPageName() { |
| 1342 | // This isn't actually useful when not in paginated layout, but it's very |
| 1343 | // likely cheaper to unconditionally write this pointer than to test for |
| 1344 | // paginated layout and then branch on the result. |
| 1345 | mState.mAutoPageNameValue = mNameToRestore; |
| 1346 | } |
| 1347 | |
| 1348 | //---------------------------------------------------------------------- |
| 1349 | |
| 1350 | nsCSSFrameConstructor::nsCSSFrameConstructor(Document* aDocument, |
| 1351 | PresShell* aPresShell) |
| 1352 | : nsFrameManager(aPresShell), |
| 1353 | mDocument(aDocument), |
| 1354 | mFirstFreeFCItem(nullptr), |
| 1355 | mFCItemsInUse(0), |
| 1356 | mCurrentDepth(0), |
| 1357 | mQuotesDirty(false), |
| 1358 | mCountersDirty(false), |
| 1359 | mAlwaysCreateFramesForIgnorableWhitespace(false), |
| 1360 | mRemovingContent(false) { |
| 1361 | #ifdef DEBUG1 |
| 1362 | static bool gFirstTime = true; |
| 1363 | if (gFirstTime) { |
| 1364 | gFirstTime = false; |
| 1365 | char* flags = PR_GetEnv("GECKO_FRAMECTOR_DEBUG_FLAGS"); |
| 1366 | if (flags) { |
| 1367 | bool error = false; |
| 1368 | for (;;) { |
| 1369 | char* comma = strchr(flags, ','); |
| 1370 | if (comma) *comma = '\0'; |
| 1371 | |
| 1372 | bool found = false; |
| 1373 | FrameCtorDebugFlags* flag = gFrameCtorDebugFlags; |
| 1374 | FrameCtorDebugFlags* limit = gFrameCtorDebugFlags + NUM_DEBUG_FLAGS(std::size(gFrameCtorDebugFlags)); |
| 1375 | while (flag < limit) { |
| 1376 | if (nsCRT::strcasecmp(flag->name, flags) == 0) { |
| 1377 | *(flag->on) = true; |
| 1378 | printf("nsCSSFrameConstructor: setting %s debug flag on\n", |
| 1379 | flag->name); |
| 1380 | found = true; |
| 1381 | break; |
| 1382 | } |
| 1383 | ++flag; |
| 1384 | } |
| 1385 | |
| 1386 | if (!found) error = true; |
| 1387 | |
| 1388 | if (!comma) break; |
| 1389 | |
| 1390 | *comma = ','; |
| 1391 | flags = comma + 1; |
| 1392 | } |
| 1393 | |
| 1394 | if (error) { |
| 1395 | printf("Here are the available GECKO_FRAMECTOR_DEBUG_FLAGS:\n"); |
| 1396 | FrameCtorDebugFlags* flag = gFrameCtorDebugFlags; |
| 1397 | FrameCtorDebugFlags* limit = gFrameCtorDebugFlags + NUM_DEBUG_FLAGS(std::size(gFrameCtorDebugFlags)); |
| 1398 | while (flag < limit) { |
| 1399 | printf(" %s\n", flag->name); |
| 1400 | ++flag; |
| 1401 | } |
| 1402 | printf( |
| 1403 | "Note: GECKO_FRAMECTOR_DEBUG_FLAGS is a comma separated list of " |
| 1404 | "flag\n"); |
| 1405 | printf("names (no whitespace)\n"); |
| 1406 | } |
| 1407 | } |
| 1408 | } |
| 1409 | #endif |
| 1410 | } |
| 1411 | |
| 1412 | void nsCSSFrameConstructor::NotifyDestroyingFrame(nsIFrame* aFrame) { |
| 1413 | if (aFrame->StyleDisplay()->IsContainStyle()) { |
| 1414 | mContainStyleScopeManager.DestroyScopesFor(aFrame); |
| 1415 | } |
| 1416 | |
| 1417 | if (aFrame->HasAnyStateBits(NS_FRAME_GENERATED_CONTENT) && |
| 1418 | mContainStyleScopeManager.DestroyQuoteNodesFor(aFrame)) { |
| 1419 | QuotesDirty(); |
| 1420 | } |
| 1421 | |
| 1422 | if (aFrame->HasAnyStateBits(NS_FRAME_HAS_CSS_COUNTER_STYLE) && |
| 1423 | mContainStyleScopeManager.DestroyCounterNodesFor(aFrame)) { |
| 1424 | // Technically we don't need to update anything if we destroyed only |
| 1425 | // USE nodes. However, this is unlikely to happen in the real world |
| 1426 | // since USE nodes generally go along with INCREMENT nodes. |
| 1427 | CountersDirty(); |
| 1428 | } |
| 1429 | |
| 1430 | RestyleManager()->NotifyDestroyingFrame(aFrame); |
| 1431 | } |
| 1432 | |
| 1433 | struct nsGenConInitializer { |
| 1434 | UniquePtr<nsGenConNode> mNode; |
| 1435 | // Null if we should use the quote list. |
| 1436 | RefPtr<nsAtom> mCounterListName; |
| 1437 | |
| 1438 | nsGenConInitializer(UniquePtr<nsGenConNode> aNode, nsAtom* aCounterListName) |
| 1439 | : mNode(std::move(aNode)), mCounterListName(aCounterListName) {} |
| 1440 | }; |
| 1441 | |
| 1442 | already_AddRefed<nsIContent> nsCSSFrameConstructor::CreateGenConTextNode( |
| 1443 | nsFrameConstructorState& aState, const nsAString& aString, |
| 1444 | UniquePtr<nsGenConInitializer> aInitializer) { |
| 1445 | RefPtr<nsTextNode> content = new (mDocument->NodeInfoManager()) |
| 1446 | nsTextNode(mDocument->NodeInfoManager()); |
| 1447 | content->SetText(aString, false); |
| 1448 | if (aInitializer) { |
| 1449 | aInitializer->mNode->mText = content; |
| 1450 | content->SetProperty(nsGkAtoms::genConInitializerProperty, |
| 1451 | aInitializer.release(), |
| 1452 | nsINode::DeleteProperty<nsGenConInitializer>); |
| 1453 | aState.mGeneratedContentWithInitializer.AppendElement(content); |
| 1454 | } |
| 1455 | return content.forget(); |
| 1456 | } |
| 1457 | |
| 1458 | void nsCSSFrameConstructor::CreateGeneratedContent( |
| 1459 | nsFrameConstructorState& aState, Element& aOriginatingElement, |
| 1460 | ComputedStyle& aPseudoStyle, const StyleContentItem& aItem, |
| 1461 | size_t aContentIndex, const FunctionRef<void(nsIContent*)> aAddChild) { |
| 1462 | using Type = StyleContentItem::Tag; |
| 1463 | // Get the content value |
| 1464 | const Type type = aItem.tag; |
| 1465 | |
| 1466 | switch (type) { |
| 1467 | case Type::Image: { |
| 1468 | RefPtr c = GeneratedImageContent::Create(*mDocument, aContentIndex); |
| 1469 | aAddChild(c); |
| 1470 | return; |
| 1471 | } |
| 1472 | |
| 1473 | case Type::String: { |
| 1474 | const auto string = aItem.AsString().AsString(); |
| 1475 | if (string.IsEmpty()) { |
| 1476 | return; |
| 1477 | } |
| 1478 | RefPtr text = |
| 1479 | CreateGenConTextNode(aState, NS_ConvertUTF8toUTF16(string), nullptr); |
| 1480 | aAddChild(text); |
| 1481 | return; |
| 1482 | } |
| 1483 | |
| 1484 | case Type::Counter: |
| 1485 | case Type::Counters: { |
| 1486 | RefPtr<nsAtom> name; |
| 1487 | const StyleCounterStyle* style; |
| 1488 | nsString separator; |
| 1489 | if (type == Type::Counter) { |
| 1490 | const auto& counter = aItem.AsCounter(); |
| 1491 | name = counter._0.AsAtom(); |
| 1492 | style = &counter._1; |
| 1493 | } else { |
| 1494 | const auto& counters = aItem.AsCounters(); |
| 1495 | name = counters._0.AsAtom(); |
| 1496 | CopyUTF8toUTF16(counters._1.AsString(), separator); |
| 1497 | style = &counters._2; |
| 1498 | } |
| 1499 | auto node = MakeUnique<nsCounterUseNode>( |
| 1500 | *style, std::move(separator), aContentIndex, |
| 1501 | /* aAllCounters = */ type == Type::Counters); |
| 1502 | auto initializer = MakeUnique<nsGenConInitializer>(std::move(node), name); |
| 1503 | RefPtr c = CreateGenConTextNode(aState, u""_ns, std::move(initializer)); |
| 1504 | aAddChild(c); |
| 1505 | return; |
| 1506 | } |
| 1507 | case Type::OpenQuote: |
| 1508 | case Type::CloseQuote: |
| 1509 | case Type::NoOpenQuote: |
| 1510 | case Type::NoCloseQuote: { |
| 1511 | auto node = MakeUnique<nsQuoteNode>(type, aContentIndex); |
| 1512 | auto initializer = |
| 1513 | MakeUnique<nsGenConInitializer>(std::move(node), nullptr); |
| 1514 | RefPtr c = CreateGenConTextNode(aState, u""_ns, std::move(initializer)); |
| 1515 | aAddChild(c); |
| 1516 | return; |
| 1517 | } |
| 1518 | |
| 1519 | case Type::MozLabelContent: { |
| 1520 | nsAutoString accesskey; |
| 1521 | if (!aOriginatingElement.GetAttr(nsGkAtoms::accesskey, accesskey) || |
| 1522 | accesskey.IsEmpty() || !LookAndFeel::GetMenuAccessKey()) { |
| 1523 | // Easy path: just return a regular value attribute content. |
| 1524 | nsCOMPtr<nsIContent> content; |
| 1525 | NS_NewAttributeContent(mDocument->NodeInfoManager(), nsGkAtoms::value, |
| 1526 | getter_AddRefs(content)); |
| 1527 | aAddChild(content); |
| 1528 | return; |
| 1529 | } |
| 1530 | |
| 1531 | nsAutoString value; |
| 1532 | aOriginatingElement.GetAttr(nsGkAtoms::value, value); |
| 1533 | |
| 1534 | auto AppendAccessKeyLabel = [&] { |
| 1535 | // Always append accesskey text in uppercase, see bug 1806167. |
| 1536 | ToUpperCase(accesskey); |
| 1537 | nsAutoString accessKeyLabel = u"("_ns + accesskey + u")"_ns; |
| 1538 | if (!StringEndsWith(value, accessKeyLabel)) { |
| 1539 | if (InsertSeparatorBeforeAccessKey() && !value.IsEmpty() && |
| 1540 | !NS_IS_SPACE(value.Last())) { |
| 1541 | value.Append(' '); |
| 1542 | } |
| 1543 | value.Append(accessKeyLabel); |
| 1544 | } |
| 1545 | }; |
| 1546 | if (AlwaysAppendAccessKey()) { |
| 1547 | AppendAccessKeyLabel(); |
| 1548 | RefPtr c = CreateGenConTextNode(aState, value, nullptr); |
| 1549 | aAddChild(c); |
| 1550 | return; |
| 1551 | } |
| 1552 | |
| 1553 | const auto accessKeyStart = [&]() -> Maybe<size_t> { |
| 1554 | nsAString::const_iterator start, end; |
| 1555 | value.BeginReading(start); |
| 1556 | value.EndReading(end); |
| 1557 | |
| 1558 | const auto originalStart = start; |
| 1559 | // not appending access key - do case-sensitive search |
| 1560 | // first |
| 1561 | bool found = true; |
| 1562 | if (!FindInReadable(accesskey, start, end)) { |
| 1563 | start = originalStart; |
| 1564 | // didn't find it - perform a case-insensitive search |
| 1565 | found = CaseInsensitiveFindInReadable(accesskey, start, end); |
| 1566 | } |
| 1567 | if (!found) { |
| 1568 | return Nothing(); |
| 1569 | } |
| 1570 | return Some(Distance(originalStart, start)); |
| 1571 | }(); |
| 1572 | |
| 1573 | if (accessKeyStart.isNothing()) { |
| 1574 | AppendAccessKeyLabel(); |
| 1575 | RefPtr c = CreateGenConTextNode(aState, value, nullptr); |
| 1576 | aAddChild(c); |
| 1577 | return; |
| 1578 | } |
| 1579 | |
| 1580 | if (*accessKeyStart != 0) { |
| 1581 | RefPtr beginning = CreateGenConTextNode( |
| 1582 | aState, Substring(value, 0, *accessKeyStart), nullptr); |
| 1583 | aAddChild(beginning); |
| 1584 | } |
| 1585 | |
| 1586 | { |
| 1587 | RefPtr accessKeyText = CreateGenConTextNode( |
| 1588 | aState, Substring(value, *accessKeyStart, accesskey.Length()), |
| 1589 | nullptr); |
| 1590 | RefPtr<nsIContent> underline = |
| 1591 | mDocument->CreateHTMLElement(nsGkAtoms::u); |
| 1592 | underline->AppendChildTo(accessKeyText, /* aNotify = */ false, |
| 1593 | IgnoreErrors()); |
| 1594 | aAddChild(underline); |
| 1595 | } |
| 1596 | |
| 1597 | size_t accessKeyEnd = *accessKeyStart + accesskey.Length(); |
| 1598 | if (accessKeyEnd != value.Length()) { |
| 1599 | RefPtr valueEnd = CreateGenConTextNode( |
| 1600 | aState, Substring(value, *accessKeyStart + accesskey.Length()), |
| 1601 | nullptr); |
| 1602 | aAddChild(valueEnd); |
| 1603 | } |
| 1604 | break; |
| 1605 | } |
| 1606 | case Type::MozAltContent: { |
| 1607 | // Use the "alt" attribute; if that fails and the node is an HTML |
| 1608 | // <input>, try the value attribute and then fall back to some default |
| 1609 | // localized text we have. |
| 1610 | // XXX what if the 'alt' attribute is added later, how will we |
| 1611 | // detect that and do the right thing here? |
| 1612 | if (aOriginatingElement.HasAttr(nsGkAtoms::alt)) { |
| 1613 | nsCOMPtr<nsIContent> content; |
| 1614 | NS_NewAttributeContent(mDocument->NodeInfoManager(), nsGkAtoms::alt, |
| 1615 | getter_AddRefs(content)); |
| 1616 | aAddChild(content); |
| 1617 | return; |
| 1618 | } |
| 1619 | |
| 1620 | if (aOriginatingElement.IsHTMLElement(nsGkAtoms::input)) { |
| 1621 | if (aOriginatingElement.HasAttr(nsGkAtoms::value)) { |
| 1622 | nsCOMPtr<nsIContent> content; |
| 1623 | NS_NewAttributeContent(mDocument->NodeInfoManager(), nsGkAtoms::value, |
| 1624 | getter_AddRefs(content)); |
| 1625 | aAddChild(content); |
| 1626 | return; |
| 1627 | } |
| 1628 | |
| 1629 | nsAutoString temp; |
| 1630 | nsContentUtils::GetMaybeLocalizedString( |
| 1631 | PropertiesFile::FORMS_PROPERTIES, "Submit", mDocument, temp); |
| 1632 | RefPtr c = CreateGenConTextNode(aState, temp, nullptr); |
| 1633 | aAddChild(c); |
| 1634 | return; |
| 1635 | } |
| 1636 | break; |
| 1637 | } |
| 1638 | } |
| 1639 | } |
| 1640 | |
| 1641 | void nsCSSFrameConstructor::CreateGeneratedContentFromListStyle( |
| 1642 | nsFrameConstructorState& aState, Element& aOriginatingElement, |
| 1643 | const ComputedStyle& aPseudoStyle, |
| 1644 | const FunctionRef<void(nsIContent*)> aAddChild) { |
| 1645 | const nsStyleList* styleList = aPseudoStyle.StyleList(); |
| 1646 | if (!styleList->mListStyleImage.IsNone()) { |
| 1647 | RefPtr<nsIContent> child = |
| 1648 | GeneratedImageContent::CreateForListStyleImage(*mDocument); |
| 1649 | aAddChild(child); |
| 1650 | child = CreateGenConTextNode(aState, u" "_ns, nullptr); |
| 1651 | aAddChild(child); |
| 1652 | return; |
| 1653 | } |
| 1654 | CreateGeneratedContentFromListStyleType(aState, aOriginatingElement, |
| 1655 | aPseudoStyle, aAddChild); |
| 1656 | } |
| 1657 | |
| 1658 | void nsCSSFrameConstructor::CreateGeneratedContentFromListStyleType( |
| 1659 | nsFrameConstructorState& aState, Element& aOriginatingElement, |
| 1660 | const ComputedStyle& aPseudoStyle, |
| 1661 | const FunctionRef<void(nsIContent*)> aAddChild) { |
| 1662 | using Tag = StyleCounterStyle::Tag; |
| 1663 | const auto& styleType = aPseudoStyle.StyleList()->mListStyleType; |
| 1664 | switch (styleType.tag) { |
| 1665 | case Tag::None: |
| 1666 | return; |
| 1667 | case Tag::String: { |
| 1668 | nsDependentAtomString string(styleType.AsString().AsAtom()); |
| 1669 | RefPtr<nsIContent> child = CreateGenConTextNode(aState, string, nullptr); |
| 1670 | aAddChild(child); |
| 1671 | return; |
| 1672 | } |
| 1673 | case Tag::Name: |
| 1674 | case Tag::Symbols: |
| 1675 | break; |
| 1676 | } |
| 1677 | |
| 1678 | auto node = MakeUnique<nsCounterUseNode>(nsCounterUseNode::ForLegacyBullet, |
| 1679 | styleType); |
| 1680 | if (styleType.IsName()) { |
| 1681 | nsAtom* name = styleType.AsName().AsAtom(); |
| 1682 | if (name == nsGkAtoms::disc || name == nsGkAtoms::circle || |
| 1683 | name == nsGkAtoms::square || name == nsGkAtoms::disclosure_closed || |
| 1684 | name == nsGkAtoms::disclosure_open) { |
| 1685 | // We don't need a use node inserted for these. |
| 1686 | CounterStyle* counterStyle = mPresShell->GetPresContext() |
| 1687 | ->CounterStyleManager() |
| 1688 | ->ResolveCounterStyle(name); |
| 1689 | nsAutoString text; |
| 1690 | node->GetText(WritingMode(&aPseudoStyle), counterStyle, text); |
| 1691 | // Note that we're done with 'node' in this case. It's not inserted into |
| 1692 | // any list so it's deleted when we return. |
| 1693 | RefPtr<nsIContent> child = CreateGenConTextNode(aState, text, nullptr); |
| 1694 | aAddChild(child); |
| 1695 | return; |
| 1696 | } |
| 1697 | } |
| 1698 | |
| 1699 | auto initializer = |
| 1700 | MakeUnique<nsGenConInitializer>(std::move(node), nsGkAtoms::list_item); |
| 1701 | RefPtr<nsIContent> child = |
| 1702 | CreateGenConTextNode(aState, EmptyString(), std::move(initializer)); |
| 1703 | aAddChild(child); |
| 1704 | } |
| 1705 | |
| 1706 | // Frames for these may not be leaves in the proper sense, but we still don't |
| 1707 | // want to expose generated content on them. For the purposes of the page they |
| 1708 | // should be leaves. |
| 1709 | static bool HasUAWidget(const Element& aOriginatingElement) { |
| 1710 | const ShadowRoot* sr = aOriginatingElement.GetShadowRoot(); |
| 1711 | return sr && sr->IsUAWidget(); |
| 1712 | } |
| 1713 | |
| 1714 | static bool IsBaseAppearanceSelect(const Element& aElement) { |
| 1715 | if (const auto* select = HTMLSelectElement::FromNode(aElement)) { |
| 1716 | return select->IsBaseSelectAppearance(); |
| 1717 | } |
| 1718 | return false; |
| 1719 | } |
| 1720 | |
| 1721 | /* |
| 1722 | * aParentFrame - the frame that should be the parent of the generated |
| 1723 | * content. This is the frame for the corresponding content node, |
| 1724 | * which must not be a leaf frame. |
| 1725 | * |
| 1726 | * Any items created are added to aItems. |
| 1727 | * |
| 1728 | * We create an XML element (tag _moz_generated_content_before/after/marker) |
| 1729 | * representing the pseudoelement. We create a DOM node for each 'content' |
| 1730 | * item and make those nodes the children of the XML element. Then we create |
| 1731 | * a frame subtree for the XML element as if it were a regular child of |
| 1732 | * aParentFrame/aParentContent, giving the XML element the ::before, ::after |
| 1733 | * or ::marker style. |
| 1734 | */ |
| 1735 | void nsCSSFrameConstructor::CreateGeneratedContentItem( |
| 1736 | nsFrameConstructorState& aState, nsContainerFrame* aParentFrame, |
| 1737 | Element& aOriginatingElement, ComputedStyle& aStyle, |
| 1738 | PseudoStyleType aPseudoElement, FrameConstructionItemList& aItems, |
| 1739 | ItemFlags aExtraFlags) { |
| 1740 | MOZ_ASSERT(aPseudoElement == PseudoStyleType::Before ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType ::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType ::PickerIcon)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aPseudoElement == PseudoStyleType ::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType ::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" " (" "unexpected aPseudoElement" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1746); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" ") (" "unexpected aPseudoElement" ")"); do { MOZ_CrashSequence (__null, 1746); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 1741 | aPseudoElement == PseudoStyleType::After ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType ::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType ::PickerIcon)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aPseudoElement == PseudoStyleType ::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType ::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" " (" "unexpected aPseudoElement" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1746); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" ") (" "unexpected aPseudoElement" ")"); do { MOZ_CrashSequence (__null, 1746); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 1742 | aPseudoElement == PseudoStyleType::Marker ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType ::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType ::PickerIcon)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aPseudoElement == PseudoStyleType ::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType ::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" " (" "unexpected aPseudoElement" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1746); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" ") (" "unexpected aPseudoElement" ")"); do { MOZ_CrashSequence (__null, 1746); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 1743 | aPseudoElement == PseudoStyleType::Backdrop ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType ::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType ::PickerIcon)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aPseudoElement == PseudoStyleType ::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType ::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" " (" "unexpected aPseudoElement" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1746); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" ") (" "unexpected aPseudoElement" ")"); do { MOZ_CrashSequence (__null, 1746); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 1744 | aPseudoElement == PseudoStyleType::Checkmark ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType ::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType ::PickerIcon)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aPseudoElement == PseudoStyleType ::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType ::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" " (" "unexpected aPseudoElement" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1746); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" ") (" "unexpected aPseudoElement" ")"); do { MOZ_CrashSequence (__null, 1746); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 1745 | aPseudoElement == PseudoStyleType::PickerIcon,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType ::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType ::PickerIcon)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aPseudoElement == PseudoStyleType ::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType ::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" " (" "unexpected aPseudoElement" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1746); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" ") (" "unexpected aPseudoElement" ")"); do { MOZ_CrashSequence (__null, 1746); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 1746 | "unexpected aPseudoElement")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType ::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType ::PickerIcon)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aPseudoElement == PseudoStyleType ::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType ::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" " (" "unexpected aPseudoElement" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1746); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPseudoElement == PseudoStyleType::Before || aPseudoElement == PseudoStyleType::After || aPseudoElement == PseudoStyleType::Marker || aPseudoElement == PseudoStyleType::Backdrop || aPseudoElement == PseudoStyleType::Checkmark || aPseudoElement == PseudoStyleType::PickerIcon" ") (" "unexpected aPseudoElement" ")"); do { MOZ_CrashSequence (__null, 1746); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 1747 | |
| 1748 | if (aPseudoElement != PseudoStyleType::Backdrop && |
| 1749 | aPseudoElement != PseudoStyleType::PickerIcon && |
| 1750 | HasUAWidget(aOriginatingElement) && |
| 1751 | !aOriginatingElement.IsHTMLElement(nsGkAtoms::details) && |
| 1752 | !IsBaseAppearanceSelect(aOriginatingElement)) { |
| 1753 | // ::before / ::after / ::marker shouldn't work on <video> / <input>. |
| 1754 | return; |
| 1755 | } |
| 1756 | |
| 1757 | ServoStyleSet* styleSet = mPresShell->StyleSet(); |
| 1758 | |
| 1759 | // Probe for the existence of the pseudo-element. |
| 1760 | // |ProbePseudoElementStyle| checks the relevant properties for the pseudo. |
| 1761 | // It only returns a non-null value if the pseudo should exist. |
| 1762 | RefPtr<ComputedStyle> pseudoStyle = styleSet->ProbePseudoElementStyle( |
| 1763 | aOriginatingElement, aPseudoElement, nullptr, &aStyle); |
| 1764 | if (!pseudoStyle) { |
| 1765 | return; |
| 1766 | } |
| 1767 | |
| 1768 | nsAtom* elemName = nullptr; |
| 1769 | nsAtom* property = nullptr; |
| 1770 | switch (aPseudoElement) { |
| 1771 | case PseudoStyleType::Before: |
| 1772 | elemName = nsGkAtoms::mozgeneratedcontentbefore; |
| 1773 | property = nsGkAtoms::beforePseudoProperty; |
| 1774 | break; |
| 1775 | case PseudoStyleType::After: |
| 1776 | elemName = nsGkAtoms::mozgeneratedcontentafter; |
| 1777 | property = nsGkAtoms::afterPseudoProperty; |
| 1778 | break; |
| 1779 | case PseudoStyleType::Marker: |
| 1780 | // We want to get a marker style even if we match no rules, but we still |
| 1781 | // want to check the result of GeneratedContentPseudoExists. |
| 1782 | elemName = nsGkAtoms::mozgeneratedcontentmarker; |
| 1783 | property = nsGkAtoms::markerPseudoProperty; |
| 1784 | break; |
| 1785 | case PseudoStyleType::Backdrop: |
| 1786 | elemName = nsGkAtoms::mozgeneratedcontentbackdrop; |
| 1787 | property = nsGkAtoms::backdropPseudoProperty; |
| 1788 | break; |
| 1789 | case PseudoStyleType::Checkmark: |
| 1790 | elemName = nsGkAtoms::mozgeneratedcontentcheckmark; |
| 1791 | property = nsGkAtoms::checkmarkPseudoProperty; |
| 1792 | break; |
| 1793 | case PseudoStyleType::PickerIcon: |
| 1794 | elemName = nsGkAtoms::mozgeneratedcontentpickericon; |
| 1795 | property = nsGkAtoms::pickerIconPseudoProperty; |
| 1796 | break; |
| 1797 | default: |
| 1798 | MOZ_ASSERT_UNREACHABLE("unexpected aPseudoElement")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "MOZ_ASSERT_UNREACHABLE: " "unexpected aPseudoElement" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1798); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "unexpected aPseudoElement" ")"); do { MOZ_CrashSequence(__null, 1798); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1799 | } |
| 1800 | |
| 1801 | auto flags = ItemFlags{ItemFlag::IsGeneratedContent} + aExtraFlags; |
| 1802 | if (aState.mCreatingExtraFrames) { |
| 1803 | // Extra frames (e.g. repeated table headers) share the pseudo-element of |
| 1804 | // the original frame, rather than creating a new one. |
| 1805 | RefPtr existing = |
| 1806 | static_cast<Element*>(aOriginatingElement.GetProperty(property)); |
| 1807 | if (!existing || !existing->GetPrimaryFrame()) { |
| 1808 | return; |
| 1809 | } |
| 1810 | AddFrameConstructionItemsInternal(aState, existing, aParentFrame, true, |
| 1811 | existing->GetPrimaryFrame()->Style(), |
| 1812 | flags, aItems); |
| 1813 | return; |
| 1814 | } |
| 1815 | |
| 1816 | RefPtr<NodeInfo> nodeInfo = mDocument->NodeInfoManager()->GetNodeInfo( |
| 1817 | elemName, nullptr, kNameSpaceID_None, nsINode::ELEMENT_NODE); |
| 1818 | RefPtr<Element> container; |
| 1819 | nsresult rv = NS_NewXMLElement(getter_AddRefs(container), nodeInfo.forget()); |
| 1820 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 1821 | return; |
| 1822 | } |
| 1823 | |
| 1824 | // Cleared when the pseudo is unbound from the tree, so no need to store a |
| 1825 | // strong reference, nor a destructor. |
| 1826 | aOriginatingElement.SetProperty(property, container.get()); |
| 1827 | |
| 1828 | container->SetIsNativeAnonymousRoot(); |
| 1829 | container->SetPseudoElementType(aPseudoElement); |
| 1830 | |
| 1831 | BindContext context(aOriginatingElement, BindContext::ForNativeAnonymous); |
| 1832 | rv = container->BindToTree(context, aOriginatingElement); |
| 1833 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 1834 | container->UnbindFromTree(); |
| 1835 | return; |
| 1836 | } |
| 1837 | |
| 1838 | if (mDocument->DevToolsAnonymousAndShadowEventsEnabled()) { |
| 1839 | container->QueueDevtoolsAnonymousEvent(/* aIsRemove = */ false); |
| 1840 | } |
| 1841 | |
| 1842 | // Servo has already eagerly computed the style for the container, so we can |
| 1843 | // just stick the style on the element and avoid an additional traversal. |
| 1844 | // |
| 1845 | // We don't do this for pseudos that may trigger animations or transitions, |
| 1846 | // since those need to be kicked off by the traversal machinery. |
| 1847 | // |
| 1848 | // Note that when a pseudo-element animates, we flag the originating element, |
| 1849 | // so we check that flag, but we could also a more expensive (but exhaustive) |
| 1850 | // check using EffectSet::GetEffectSet, for example. |
| 1851 | if (!Servo_ComputedValues_SpecifiesAnimationsOrTransitions(pseudoStyle) && |
| 1852 | !aOriginatingElement.MayHaveAnimations()) { |
| 1853 | Servo_SetExplicitStyle(container, pseudoStyle); |
| 1854 | } else { |
| 1855 | // If animations are involved, we avoid the SetExplicitStyle optimization |
| 1856 | // above. We need to grab style with animations from the pseudo element and |
| 1857 | // replace old one. |
| 1858 | mPresShell->StyleSet()->StyleNewSubtree(container); |
| 1859 | pseudoStyle = ServoStyleSet::ResolveServoStyle(*container); |
| 1860 | } |
| 1861 | if (aPseudoElement != PseudoStyleType::Backdrop) { |
| 1862 | auto AppendChild = [&container, this](nsIContent* aChild) { |
| 1863 | // We don't strictly have to set NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE |
| 1864 | // here; it would get set under AppendChildTo. But AppendChildTo might |
| 1865 | // think that we're going from not being anonymous to being anonymous and |
| 1866 | // do some extra work; setting the flag here avoids that. |
| 1867 | aChild->SetFlags(NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE); |
| 1868 | container->AppendChildTo(aChild, false, IgnoreErrors()); |
| 1869 | if (auto* childElement = Element::FromNode(aChild)) { |
| 1870 | // If we created any children elements, Servo needs to traverse them, |
| 1871 | // but the root is already set up. |
| 1872 | mPresShell->StyleSet()->StyleNewSubtree(childElement); |
| 1873 | } |
| 1874 | }; |
| 1875 | auto items = pseudoStyle->StyleContent()->NonAltContentItems(); |
| 1876 | size_t index = 0; |
| 1877 | for (const auto& item : items) { |
| 1878 | CreateGeneratedContent(aState, aOriginatingElement, *pseudoStyle, item, |
| 1879 | index++, AppendChild); |
| 1880 | } |
| 1881 | // If a ::marker has no 'content' then generate it from its 'list-style-*'. |
| 1882 | if (index == 0 && aPseudoElement == PseudoStyleType::Marker) { |
| 1883 | CreateGeneratedContentFromListStyle(aState, aOriginatingElement, |
| 1884 | *pseudoStyle, AppendChild); |
| 1885 | } |
| 1886 | } |
| 1887 | AddFrameConstructionItemsInternal(aState, container, aParentFrame, true, |
| 1888 | pseudoStyle, flags, aItems); |
| 1889 | } |
| 1890 | |
| 1891 | /**************************************************** |
| 1892 | ** BEGIN TABLE SECTION |
| 1893 | ****************************************************/ |
| 1894 | |
| 1895 | // The term pseudo frame is being used instead of anonymous frame, since |
| 1896 | // anonymous frame has been used elsewhere to refer to frames that have |
| 1897 | // generated content |
| 1898 | |
| 1899 | // Return whether the given frame is a table pseudo-frame. Note that |
| 1900 | // cell-content and table-outer frames have pseudo-types, but are always |
| 1901 | // created, even for non-anonymous cells and tables respectively. So for those |
| 1902 | // we have to examine the cell or table frame to see whether it's a pseudo |
| 1903 | // frame. In particular, a lone table caption will have a table wrapper as its |
| 1904 | // parent, but will also trigger construction of an empty inner table, which |
| 1905 | // will be the one we can examine to see whether the wrapper was a pseudo-frame. |
| 1906 | static bool IsTablePseudo(nsIFrame* aFrame) { |
| 1907 | auto pseudoType = aFrame->Style()->GetPseudoType(); |
| 1908 | if (pseudoType == PseudoStyleType::NotPseudo) { |
| 1909 | return false; |
| 1910 | } |
| 1911 | return pseudoType == PseudoStyleType::MozTable || |
| 1912 | pseudoType == PseudoStyleType::MozInlineTable || |
| 1913 | pseudoType == PseudoStyleType::MozTableColumnGroup || |
| 1914 | pseudoType == PseudoStyleType::MozTableRowGroup || |
| 1915 | pseudoType == PseudoStyleType::MozTableRow || |
| 1916 | pseudoType == PseudoStyleType::MozTableCell || |
| 1917 | (pseudoType == PseudoStyleType::MozCellContent && |
| 1918 | aFrame->GetParent()->Style()->GetPseudoType() == |
| 1919 | PseudoStyleType::MozTableCell) || |
| 1920 | (pseudoType == PseudoStyleType::MozTableWrapper && |
| 1921 | static_cast<nsTableWrapperFrame*>(aFrame) |
| 1922 | ->InnerTableFrame() |
| 1923 | ->Style() |
| 1924 | ->IsPseudoOrAnonBox()); |
| 1925 | } |
| 1926 | |
| 1927 | static bool IsRubyPseudo(nsIFrame* aFrame) { |
| 1928 | return RubyUtils::IsRubyPseudo(aFrame->Style()->GetPseudoType()); |
| 1929 | } |
| 1930 | |
| 1931 | // Note that this is (subtly) different to ParentIsWrapperAnonBox, since |
| 1932 | // ParentIsWrapperAnonBox is really just about restyles, but there are wrapper |
| 1933 | // anon boxes that don't need to return true for that... |
| 1934 | // FIXME(emilio): This should be less complicated, ParentIsWrapperAnonBox should |
| 1935 | // probably be renamed to something else, and this should just use |
| 1936 | // IsWrapperAnonBox or similar... |
| 1937 | static bool IsWrapperPseudo(nsIFrame* aFrame) { |
| 1938 | auto pseudoType = aFrame->Style()->GetPseudoType(); |
| 1939 | if (!PseudoStyle::IsAnonBox(pseudoType)) { |
| 1940 | return false; |
| 1941 | } |
| 1942 | return PseudoStyle::IsWrapperAnonBox(pseudoType) || IsTablePseudo(aFrame); |
| 1943 | } |
| 1944 | |
| 1945 | static bool IsInAnonymousTable(nsIFrame* aFrame) { |
| 1946 | for (nsIFrame* f = aFrame; f; f = f->GetParent()) { |
| 1947 | if (!IsWrapperPseudo(f)) { |
| 1948 | return false; |
| 1949 | } |
| 1950 | if (f->IsTableWrapperFrame()) { |
| 1951 | return true; |
| 1952 | } |
| 1953 | } |
| 1954 | MOZ_ASSERT_UNREACHABLE("Expected to be called inside tables")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "MOZ_ASSERT_UNREACHABLE: " "Expected to be called inside tables" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 1954); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "Expected to be called inside tables" ")"); do { MOZ_CrashSequence(__null, 1954); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1955 | return false; |
| 1956 | } |
| 1957 | |
| 1958 | /* static */ |
| 1959 | nsCSSFrameConstructor::ParentType nsCSSFrameConstructor::GetParentType( |
| 1960 | LayoutFrameType aFrameType) { |
| 1961 | if (aFrameType == LayoutFrameType::Table) { |
| 1962 | return eTypeTable; |
| 1963 | } |
| 1964 | if (aFrameType == LayoutFrameType::TableRowGroup) { |
| 1965 | return eTypeRowGroup; |
| 1966 | } |
| 1967 | if (aFrameType == LayoutFrameType::TableRow) { |
| 1968 | return eTypeRow; |
| 1969 | } |
| 1970 | if (aFrameType == LayoutFrameType::TableColGroup) { |
| 1971 | return eTypeColGroup; |
| 1972 | } |
| 1973 | if (aFrameType == LayoutFrameType::RubyBaseContainer) { |
| 1974 | return eTypeRubyBaseContainer; |
| 1975 | } |
| 1976 | if (aFrameType == LayoutFrameType::RubyTextContainer) { |
| 1977 | return eTypeRubyTextContainer; |
| 1978 | } |
| 1979 | if (aFrameType == LayoutFrameType::Ruby) { |
| 1980 | return eTypeRuby; |
| 1981 | } |
| 1982 | |
| 1983 | return eTypeBlock; |
| 1984 | } |
| 1985 | |
| 1986 | // Pull all the captions present in aItems out into aCaptions. |
| 1987 | static void PullOutCaptionFrames(nsFrameList& aList, nsFrameList& aCaptions) { |
| 1988 | nsIFrame* child = aList.FirstChild(); |
| 1989 | while (child) { |
| 1990 | nsIFrame* nextSibling = child->GetNextSibling(); |
| 1991 | if (child->StyleDisplay()->mDisplay == StyleDisplay::TableCaption) { |
| 1992 | aList.RemoveFrame(child); |
| 1993 | aCaptions.AppendFrame(nullptr, child); |
| 1994 | } |
| 1995 | child = nextSibling; |
| 1996 | } |
| 1997 | } |
| 1998 | |
| 1999 | // Construct the outer, inner table frames and the children frames for the |
| 2000 | // table. |
| 2001 | // XXX Page break frames for pseudo table frames are not constructed to avoid |
| 2002 | // the risk associated with revising the pseudo frame mechanism. The long term |
| 2003 | // solution of having frames handle page-break-before/after will solve the |
| 2004 | // problem. |
| 2005 | nsIFrame* nsCSSFrameConstructor::ConstructTable(nsFrameConstructorState& aState, |
| 2006 | FrameConstructionItem& aItem, |
| 2007 | nsContainerFrame* aParentFrame, |
| 2008 | const nsStyleDisplay* aDisplay, |
| 2009 | nsFrameList& aFrameList) { |
| 2010 | MOZ_ASSERT(aDisplay->mDisplay == StyleDisplay::Table ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDisplay->mDisplay == StyleDisplay::Table || aDisplay ->mDisplay == StyleDisplay::InlineTable)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDisplay->mDisplay == StyleDisplay ::Table || aDisplay->mDisplay == StyleDisplay::InlineTable ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aDisplay->mDisplay == StyleDisplay::Table || aDisplay->mDisplay == StyleDisplay::InlineTable" " (" "Unexpected call" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2012); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDisplay->mDisplay == StyleDisplay::Table || aDisplay->mDisplay == StyleDisplay::InlineTable" ") (" "Unexpected call" ")"); do { MOZ_CrashSequence(__null, 2012); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 2011 | aDisplay->mDisplay == StyleDisplay::InlineTable,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDisplay->mDisplay == StyleDisplay::Table || aDisplay ->mDisplay == StyleDisplay::InlineTable)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDisplay->mDisplay == StyleDisplay ::Table || aDisplay->mDisplay == StyleDisplay::InlineTable ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aDisplay->mDisplay == StyleDisplay::Table || aDisplay->mDisplay == StyleDisplay::InlineTable" " (" "Unexpected call" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2012); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDisplay->mDisplay == StyleDisplay::Table || aDisplay->mDisplay == StyleDisplay::InlineTable" ") (" "Unexpected call" ")"); do { MOZ_CrashSequence(__null, 2012); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 2012 | "Unexpected call")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDisplay->mDisplay == StyleDisplay::Table || aDisplay ->mDisplay == StyleDisplay::InlineTable)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDisplay->mDisplay == StyleDisplay ::Table || aDisplay->mDisplay == StyleDisplay::InlineTable ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aDisplay->mDisplay == StyleDisplay::Table || aDisplay->mDisplay == StyleDisplay::InlineTable" " (" "Unexpected call" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2012); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDisplay->mDisplay == StyleDisplay::Table || aDisplay->mDisplay == StyleDisplay::InlineTable" ") (" "Unexpected call" ")"); do { MOZ_CrashSequence(__null, 2012); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 2013 | |
| 2014 | nsIContent* const content = aItem.mContent; |
| 2015 | ComputedStyle* const computedStyle = aItem.mComputedStyle; |
| 2016 | const bool isMathMLContent = content->IsMathMLElement(); |
| 2017 | |
| 2018 | // create the pseudo SC for the table wrapper as a child of the inner SC |
| 2019 | RefPtr<ComputedStyle> outerComputedStyle = |
| 2020 | mPresShell->StyleSet()->ResolveInheritingAnonymousBoxStyle( |
| 2021 | PseudoStyleType::MozTableWrapper, computedStyle); |
| 2022 | |
| 2023 | // Create the table wrapper frame which holds the caption and inner table |
| 2024 | // frame |
| 2025 | nsContainerFrame* newFrame; |
| 2026 | if (isMathMLContent) { |
| 2027 | newFrame = NS_NewMathMLmtableOuterFrame(mPresShell, outerComputedStyle); |
| 2028 | } else { |
| 2029 | newFrame = NS_NewTableWrapperFrame(mPresShell, outerComputedStyle); |
| 2030 | } |
| 2031 | |
| 2032 | nsContainerFrame* geometricParent = aState.GetGeometricParent( |
| 2033 | *outerComputedStyle->StyleDisplay(), aParentFrame); |
| 2034 | |
| 2035 | // Init the table wrapper frame |
| 2036 | InitAndRestoreFrame(aState, content, geometricParent, newFrame); |
| 2037 | |
| 2038 | // Create the inner table frame |
| 2039 | nsContainerFrame* innerFrame; |
| 2040 | if (isMathMLContent) { |
| 2041 | innerFrame = NS_NewMathMLmtableFrame(mPresShell, computedStyle); |
| 2042 | } else { |
| 2043 | innerFrame = NS_NewTableFrame(mPresShell, computedStyle); |
| 2044 | } |
| 2045 | |
| 2046 | InitAndRestoreFrame(aState, content, newFrame, innerFrame); |
| 2047 | innerFrame->AddStateBits(NS_FRAME_OWNS_ANON_BOXES); |
| 2048 | |
| 2049 | // Put the newly created frames into the right child list |
| 2050 | SetInitialSingleChild(newFrame, innerFrame); |
| 2051 | |
| 2052 | aState.AddChild(newFrame, aFrameList, content, aParentFrame); |
| 2053 | |
| 2054 | if (!mRootElementFrame) { |
| 2055 | mRootElementFrame = newFrame; |
| 2056 | } |
| 2057 | |
| 2058 | nsFrameList childList; |
| 2059 | |
| 2060 | // Process children |
| 2061 | nsFrameConstructorSaveState absoluteSaveState; |
| 2062 | |
| 2063 | // Mark the table frame as an absolute container if needed |
| 2064 | newFrame->AddStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 2065 | if (newFrame->IsAbsPosContainingBlock()) { |
| 2066 | aState.PushAbsoluteContainingBlock(newFrame, newFrame, absoluteSaveState); |
| 2067 | } |
| 2068 | |
| 2069 | nsFrameConstructorSaveState floatSaveState; |
| 2070 | aState.MaybePushFloatContainingBlock(innerFrame, floatSaveState); |
| 2071 | |
| 2072 | if (aItem.mFCData->mBits & FCDATA_USE_CHILD_ITEMS0x10000) { |
| 2073 | ConstructFramesFromItemList( |
| 2074 | aState, aItem.mChildItems, innerFrame, |
| 2075 | aItem.mFCData->mBits & FCDATA_IS_WRAPPER_ANON_BOX0x400000, childList); |
| 2076 | } else { |
| 2077 | ProcessChildren(aState, content, computedStyle, innerFrame, true, childList, |
| 2078 | false); |
| 2079 | } |
| 2080 | |
| 2081 | nsFrameList captionList; |
| 2082 | PullOutCaptionFrames(childList, captionList); |
| 2083 | |
| 2084 | // Set the inner table frame's principal child list. |
| 2085 | innerFrame->SetInitialChildList(FrameChildListID::Principal, |
| 2086 | std::move(childList)); |
| 2087 | |
| 2088 | // Append caption frames to the table wrapper frame's principal child list. |
| 2089 | if (captionList.NotEmpty()) { |
| 2090 | captionList.ApplySetParent(newFrame); |
| 2091 | newFrame->AppendFrames(FrameChildListID::Principal, std::move(captionList)); |
| 2092 | } |
| 2093 | |
| 2094 | return newFrame; |
| 2095 | } |
| 2096 | |
| 2097 | static void MakeTablePartAbsoluteContainingBlock( |
| 2098 | nsFrameConstructorState& aState, nsFrameConstructorSaveState& aAbsSaveState, |
| 2099 | nsContainerFrame* aFrame) { |
| 2100 | // If we're positioned, then we need to become an absolute containing block |
| 2101 | // for any absolutely positioned children. |
| 2102 | aFrame->AddStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 2103 | if (aFrame->IsAbsPosContainingBlock()) { |
| 2104 | aState.PushAbsoluteContainingBlock(aFrame, aFrame, aAbsSaveState); |
| 2105 | } |
| 2106 | } |
| 2107 | |
| 2108 | nsIFrame* nsCSSFrameConstructor::ConstructTableRowOrRowGroup( |
| 2109 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 2110 | nsContainerFrame* aParentFrame, const nsStyleDisplay* aDisplay, |
| 2111 | nsFrameList& aFrameList) { |
| 2112 | MOZ_ASSERT(aDisplay->mDisplay == StyleDisplay::TableRow ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay ->mDisplay == StyleDisplay::TableRowGroup || aDisplay-> mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDisplay->mDisplay == StyleDisplay ::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup" " (" "Not a row or row group" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2116); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup" ") (" "Not a row or row group" ")"); do { MOZ_CrashSequence( __null, 2116); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false) |
| 2113 | aDisplay->mDisplay == StyleDisplay::TableRowGroup ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay ->mDisplay == StyleDisplay::TableRowGroup || aDisplay-> mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDisplay->mDisplay == StyleDisplay ::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup" " (" "Not a row or row group" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2116); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup" ") (" "Not a row or row group" ")"); do { MOZ_CrashSequence( __null, 2116); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false) |
| 2114 | aDisplay->mDisplay == StyleDisplay::TableFooterGroup ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay ->mDisplay == StyleDisplay::TableRowGroup || aDisplay-> mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDisplay->mDisplay == StyleDisplay ::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup" " (" "Not a row or row group" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2116); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup" ") (" "Not a row or row group" ")"); do { MOZ_CrashSequence( __null, 2116); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false) |
| 2115 | aDisplay->mDisplay == StyleDisplay::TableHeaderGroup,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay ->mDisplay == StyleDisplay::TableRowGroup || aDisplay-> mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDisplay->mDisplay == StyleDisplay ::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup" " (" "Not a row or row group" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2116); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup" ") (" "Not a row or row group" ")"); do { MOZ_CrashSequence( __null, 2116); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false) |
| 2116 | "Not a row or row group")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay ->mDisplay == StyleDisplay::TableRowGroup || aDisplay-> mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDisplay->mDisplay == StyleDisplay ::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup" " (" "Not a row or row group" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2116); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDisplay->mDisplay == StyleDisplay::TableRow || aDisplay->mDisplay == StyleDisplay::TableRowGroup || aDisplay->mDisplay == StyleDisplay::TableFooterGroup || aDisplay->mDisplay == StyleDisplay::TableHeaderGroup" ") (" "Not a row or row group" ")"); do { MOZ_CrashSequence( __null, 2116); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 2117 | MOZ_ASSERT(aItem.mComputedStyle->StyleDisplay() == aDisplay,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aItem.mComputedStyle->StyleDisplay() == aDisplay) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aItem.mComputedStyle->StyleDisplay() == aDisplay) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aItem.mComputedStyle->StyleDisplay() == aDisplay" " (" "Display style doesn't match style" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2118); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aItem.mComputedStyle->StyleDisplay() == aDisplay" ") (" "Display style doesn't match style" ")"); do { MOZ_CrashSequence (__null, 2118); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 2118 | "Display style doesn't match style")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aItem.mComputedStyle->StyleDisplay() == aDisplay) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aItem.mComputedStyle->StyleDisplay() == aDisplay) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aItem.mComputedStyle->StyleDisplay() == aDisplay" " (" "Display style doesn't match style" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2118); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aItem.mComputedStyle->StyleDisplay() == aDisplay" ") (" "Display style doesn't match style" ")"); do { MOZ_CrashSequence (__null, 2118); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 2119 | nsIContent* const content = aItem.mContent; |
| 2120 | ComputedStyle* const computedStyle = aItem.mComputedStyle; |
| 2121 | |
| 2122 | nsContainerFrame* newFrame; |
| 2123 | if (aDisplay->mDisplay == StyleDisplay::TableRow) { |
| 2124 | if (content->IsMathMLElement()) { |
| 2125 | newFrame = NS_NewMathMLmtrFrame(mPresShell, computedStyle); |
| 2126 | } else { |
| 2127 | newFrame = NS_NewTableRowFrame(mPresShell, computedStyle); |
| 2128 | } |
| 2129 | } else { |
| 2130 | newFrame = NS_NewTableRowGroupFrame(mPresShell, computedStyle); |
| 2131 | } |
| 2132 | |
| 2133 | InitAndRestoreFrame(aState, content, aParentFrame, newFrame); |
| 2134 | |
| 2135 | nsFrameConstructorSaveState absoluteSaveState; |
| 2136 | MakeTablePartAbsoluteContainingBlock(aState, absoluteSaveState, newFrame); |
| 2137 | |
| 2138 | nsFrameConstructorSaveState floatSaveState; |
| 2139 | aState.MaybePushFloatContainingBlock(newFrame, floatSaveState); |
| 2140 | |
| 2141 | nsFrameList childList; |
| 2142 | if (aItem.mFCData->mBits & FCDATA_USE_CHILD_ITEMS0x10000) { |
| 2143 | ConstructFramesFromItemList( |
| 2144 | aState, aItem.mChildItems, newFrame, |
| 2145 | aItem.mFCData->mBits & FCDATA_IS_WRAPPER_ANON_BOX0x400000, childList); |
| 2146 | } else { |
| 2147 | ProcessChildren(aState, content, computedStyle, newFrame, true, childList, |
| 2148 | false); |
| 2149 | } |
| 2150 | |
| 2151 | newFrame->SetInitialChildList(FrameChildListID::Principal, |
| 2152 | std::move(childList)); |
| 2153 | aFrameList.AppendFrame(nullptr, newFrame); |
| 2154 | return newFrame; |
| 2155 | } |
| 2156 | |
| 2157 | nsIFrame* nsCSSFrameConstructor::ConstructTableCol( |
| 2158 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 2159 | nsContainerFrame* aParentFrame, const nsStyleDisplay* aStyleDisplay, |
| 2160 | nsFrameList& aFrameList) { |
| 2161 | nsIContent* const content = aItem.mContent; |
| 2162 | ComputedStyle* const computedStyle = aItem.mComputedStyle; |
| 2163 | |
| 2164 | nsTableColFrame* colFrame = NS_NewTableColFrame(mPresShell, computedStyle); |
| 2165 | InitAndRestoreFrame(aState, content, aParentFrame, colFrame); |
| 2166 | |
| 2167 | NS_ASSERTION(colFrame->Style() == computedStyle, "Unexpected style")do { if (!(colFrame->Style() == computedStyle)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Unexpected style", "colFrame->Style() == computedStyle" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2167); MOZ_PretendNoReturn (); } } while (0); |
| 2168 | |
| 2169 | aFrameList.AppendFrame(nullptr, colFrame); |
| 2170 | |
| 2171 | // construct additional col frames if the col frame has a span > 1 |
| 2172 | int32_t span = colFrame->GetSpan(); |
| 2173 | for (int32_t spanX = 1; spanX < span; spanX++) { |
| 2174 | nsTableColFrame* newCol = NS_NewTableColFrame(mPresShell, computedStyle); |
| 2175 | InitAndRestoreFrame(aState, content, aParentFrame, newCol, |
| 2176 | AllowCounters::No); |
| 2177 | aFrameList.LastChild()->SetNextContinuation(newCol); |
| 2178 | newCol->SetPrevContinuation(aFrameList.LastChild()); |
| 2179 | aFrameList.AppendFrame(nullptr, newCol); |
| 2180 | newCol->SetColType(eColAnonymousCol); |
| 2181 | } |
| 2182 | |
| 2183 | return colFrame; |
| 2184 | } |
| 2185 | |
| 2186 | nsIFrame* nsCSSFrameConstructor::ConstructTableCell( |
| 2187 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 2188 | nsContainerFrame* aParentFrame, const nsStyleDisplay* aDisplay, |
| 2189 | nsFrameList& aFrameList) { |
| 2190 | MOZ_ASSERT(aDisplay->mDisplay == StyleDisplay::TableCell, "Unexpected call")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDisplay->mDisplay == StyleDisplay::TableCell)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aDisplay->mDisplay == StyleDisplay::TableCell))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aDisplay->mDisplay == StyleDisplay::TableCell" " (" "Unexpected call" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2190); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDisplay->mDisplay == StyleDisplay::TableCell" ") (" "Unexpected call" ")"); do { MOZ_CrashSequence(__null, 2190); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 2191 | |
| 2192 | nsIContent* const content = aItem.mContent; |
| 2193 | ComputedStyle* const computedStyle = aItem.mComputedStyle; |
| 2194 | const bool isMathMLContent = content->IsMathMLElement(); |
| 2195 | |
| 2196 | nsTableFrame* tableFrame = |
| 2197 | static_cast<nsTableRowFrame*>(aParentFrame)->GetTableFrame(); |
| 2198 | nsContainerFrame* cellFrame; |
| 2199 | // <mtable> is border separate in mathml.css and the MathML code doesn't |
| 2200 | // implement border collapse. For those users who style <mtable> with border |
| 2201 | // collapse, give them the default non-MathML table frames that understand |
| 2202 | // border collapse. This won't break us because MathML table frames are all |
| 2203 | // subclasses of the default table code, and so we can freely mix <mtable> |
| 2204 | // with <mtr> or <tr>, <mtd> or <td>. What will happen is just that non-MathML |
| 2205 | // frames won't understand MathML attributes and will therefore miss the |
| 2206 | // special handling that the MathML code does. |
| 2207 | if (isMathMLContent && !tableFrame->IsBorderCollapse()) { |
| 2208 | cellFrame = NS_NewMathMLmtdFrame(mPresShell, computedStyle, tableFrame); |
| 2209 | } else { |
| 2210 | // Warning: If you change this and add a wrapper frame around table cell |
| 2211 | // frames, make sure Bug 368554 doesn't regress! |
| 2212 | // See IsInAutoWidthTableCellForQuirk() in nsImageFrame.cpp. |
| 2213 | cellFrame = NS_NewTableCellFrame(mPresShell, computedStyle, tableFrame); |
| 2214 | } |
| 2215 | |
| 2216 | // Initialize the table cell frame |
| 2217 | InitAndRestoreFrame(aState, content, aParentFrame, cellFrame); |
| 2218 | cellFrame->AddStateBits(NS_FRAME_OWNS_ANON_BOXES); |
| 2219 | |
| 2220 | // Resolve pseudo style and initialize the body cell frame |
| 2221 | RefPtr<ComputedStyle> innerPseudoStyle = |
| 2222 | mPresShell->StyleSet()->ResolveInheritingAnonymousBoxStyle( |
| 2223 | PseudoStyleType::MozCellContent, computedStyle); |
| 2224 | |
| 2225 | nsContainerFrame* cellInnerFrame; |
| 2226 | nsContainerFrame* scrollFrame = nullptr; |
| 2227 | bool isScrollable = false; |
| 2228 | // Create a block frame that will format the cell's content |
| 2229 | if (isMathMLContent) { |
| 2230 | cellInnerFrame = NS_NewMathMLmtdInnerFrame(mPresShell, innerPseudoStyle); |
| 2231 | } else { |
| 2232 | isScrollable = innerPseudoStyle->StyleDisplay()->IsScrollableOverflow() && |
| 2233 | !aState.mPresContext->IsPaginated() && |
| 2234 | StaticPrefs::layout_tables_scrollable_cells(); |
| 2235 | if (isScrollable) { |
| 2236 | innerPseudoStyle = BeginBuildingScrollContainerFrame( |
| 2237 | aState, content, innerPseudoStyle, cellFrame, false, scrollFrame); |
| 2238 | } |
| 2239 | cellInnerFrame = NS_NewBlockFrame(mPresShell, innerPseudoStyle); |
| 2240 | } |
| 2241 | auto* parent = scrollFrame ? scrollFrame : cellFrame; |
| 2242 | InitAndRestoreFrame(aState, content, parent, cellInnerFrame); |
| 2243 | |
| 2244 | nsFrameConstructorSaveState absoluteSaveState; |
| 2245 | MakeTablePartAbsoluteContainingBlock(aState, absoluteSaveState, cellFrame); |
| 2246 | |
| 2247 | nsFrameConstructorSaveState floatSaveState; |
| 2248 | aState.MaybePushFloatContainingBlock(cellInnerFrame, floatSaveState); |
| 2249 | |
| 2250 | nsFrameList childList; |
| 2251 | if (aItem.mFCData->mBits & FCDATA_USE_CHILD_ITEMS0x10000) { |
| 2252 | AutoFrameConstructionPageName pageNameTracker(aState, cellInnerFrame); |
| 2253 | ConstructFramesFromItemList( |
| 2254 | aState, aItem.mChildItems, cellInnerFrame, |
| 2255 | aItem.mFCData->mBits & FCDATA_IS_WRAPPER_ANON_BOX0x400000, childList); |
| 2256 | } else { |
| 2257 | // Process the child content |
| 2258 | ProcessChildren(aState, content, computedStyle, cellInnerFrame, true, |
| 2259 | childList, !isMathMLContent); |
| 2260 | } |
| 2261 | |
| 2262 | cellInnerFrame->SetInitialChildList(FrameChildListID::Principal, |
| 2263 | std::move(childList)); |
| 2264 | |
| 2265 | if (isScrollable) { |
| 2266 | FinishBuildingScrollContainerFrame(scrollFrame, cellInnerFrame); |
| 2267 | } |
| 2268 | SetInitialSingleChild(cellFrame, scrollFrame ? scrollFrame : cellInnerFrame); |
| 2269 | aFrameList.AppendFrame(nullptr, cellFrame); |
| 2270 | return cellFrame; |
| 2271 | } |
| 2272 | |
| 2273 | static inline bool NeedFrameFor(const nsFrameConstructorState& aState, |
| 2274 | nsContainerFrame* aParentFrame, |
| 2275 | nsIContent* aChildContent) { |
| 2276 | // XXX the GetContent() != aChildContent check is needed due to bug 135040. |
| 2277 | // Remove it once that's fixed. |
| 2278 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent" " (" "Why did we get called?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2281); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent" ") (" "Why did we get called?" ")"); do { MOZ_CrashSequence( __null, 2281); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false) |
| 2279 | !aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent" " (" "Why did we get called?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2281); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent" ") (" "Why did we get called?" ")"); do { MOZ_CrashSequence( __null, 2281); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false) |
| 2280 | aChildContent->GetPrimaryFrame()->GetContent() != aChildContent,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent" " (" "Why did we get called?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2281); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent" ") (" "Why did we get called?" ")"); do { MOZ_CrashSequence( __null, 2281); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false) |
| 2281 | "Why did we get called?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent" " (" "Why did we get called?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2281); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aChildContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aChildContent->GetPrimaryFrame()->GetContent() != aChildContent" ") (" "Why did we get called?" ")"); do { MOZ_CrashSequence( __null, 2281); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 2282 | |
| 2283 | // don't create a whitespace frame if aParentFrame doesn't want it. |
| 2284 | // always create frames for children in generated content. counter(), |
| 2285 | // quotes, and attr() content can easily change dynamically and we don't |
| 2286 | // want to be reconstructing frames. It's not even clear that these |
| 2287 | // should be considered ignorable just because they evaluate to |
| 2288 | // whitespace. |
| 2289 | |
| 2290 | // We could handle all this in CreateNeededPseudoContainers or some other |
| 2291 | // place after we build our frame construction items, but that would involve |
| 2292 | // creating frame construction items for whitespace kids that ignores |
| 2293 | // white-space, where we know we'll be dropping them all anyway, and involve |
| 2294 | // an extra walk down the frame construction item list. |
| 2295 | auto excludesIgnorableWhitespace = [](nsIFrame* aParentFrame) { |
| 2296 | return aParentFrame->IsMathMLFrame(); |
| 2297 | }; |
| 2298 | if (!aParentFrame || !excludesIgnorableWhitespace(aParentFrame) || |
| 2299 | aParentFrame->IsGeneratedContentFrame() || !aChildContent->IsText()) { |
| 2300 | return true; |
| 2301 | } |
| 2302 | |
| 2303 | aChildContent->SetFlags(NS_CREATE_FRAME_IF_NON_WHITESPACE | |
| 2304 | NS_REFRAME_IF_WHITESPACE); |
| 2305 | return !aChildContent->TextIsOnlyWhitespace(); |
| 2306 | } |
| 2307 | |
| 2308 | /*********************************************** |
| 2309 | * END TABLE SECTION |
| 2310 | ***********************************************/ |
| 2311 | |
| 2312 | nsIFrame* nsCSSFrameConstructor::ConstructDocElementFrame( |
| 2313 | Element* aDocElement) { |
| 2314 | MOZ_ASSERT(GetRootFrame(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(GetRootFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(GetRootFrame()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("GetRootFrame()" " (" "No viewport? Someone forgot to call ConstructRootFrame!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 2315 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "GetRootFrame()" ") (" "No viewport? Someone forgot to call ConstructRootFrame!" ")" ); do { MOZ_CrashSequence(__null, 2315); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2315 | "No viewport? Someone forgot to call ConstructRootFrame!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(GetRootFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(GetRootFrame()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("GetRootFrame()" " (" "No viewport? Someone forgot to call ConstructRootFrame!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 2315 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "GetRootFrame()" ") (" "No viewport? Someone forgot to call ConstructRootFrame!" ")" ); do { MOZ_CrashSequence(__null, 2315); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2316 | MOZ_ASSERT(!mDocElementContainingBlock,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mDocElementContainingBlock)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mDocElementContainingBlock) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mDocElementContainingBlock" " (" "Shouldn't have a doc element containing block here" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2317); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!mDocElementContainingBlock" ") (" "Shouldn't have a doc element containing block here" ")"); do { MOZ_CrashSequence(__null, 2317); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2317 | "Shouldn't have a doc element containing block here")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mDocElementContainingBlock)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mDocElementContainingBlock) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mDocElementContainingBlock" " (" "Shouldn't have a doc element containing block here" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2317); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!mDocElementContainingBlock" ") (" "Shouldn't have a doc element containing block here" ")"); do { MOZ_CrashSequence(__null, 2317); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2318 | |
| 2319 | // Ensure the document element is styled at this point. |
| 2320 | // FIXME(emilio, bug 1852735): This is only needed because of the sync frame |
| 2321 | // construction from PresShell::Initialize. |
| 2322 | if (!aDocElement->HasServoData()) { |
| 2323 | mPresShell->StyleSet()->StyleNewSubtree(aDocElement); |
| 2324 | } |
| 2325 | aDocElement->UnsetFlags(NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME); |
| 2326 | |
| 2327 | // Make sure to call UpdateViewportScrollStylesOverride before |
| 2328 | // SetUpDocElementContainingBlock, since it sets up our scrollbar state |
| 2329 | // properly. |
| 2330 | DebugOnly<nsIContent*> propagatedScrollFrom; |
| 2331 | if (nsPresContext* presContext = mPresShell->GetPresContext()) { |
| 2332 | propagatedScrollFrom = presContext->UpdateViewportScrollStylesOverride(); |
| 2333 | } |
| 2334 | |
| 2335 | SetUpDocElementContainingBlock(aDocElement); |
| 2336 | |
| 2337 | NS_ASSERTION(mDocElementContainingBlock, "Should have parent by now")do { if (!(mDocElementContainingBlock)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Should have parent by now", "mDocElementContainingBlock", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2337); MOZ_PretendNoReturn(); } } while (0); |
| 2338 | nsFrameConstructorState state( |
| 2339 | mPresShell, |
| 2340 | GetAbsoluteContainingBlock(mDocElementContainingBlock, FIXED_POS), |
| 2341 | nullptr, nullptr); |
| 2342 | |
| 2343 | RefPtr<ComputedStyle> computedStyle = |
| 2344 | ServoStyleSet::ResolveServoStyle(*aDocElement); |
| 2345 | |
| 2346 | const nsStyleDisplay* display = computedStyle->StyleDisplay(); |
| 2347 | |
| 2348 | // --------- IF SCROLLABLE WRAP IN SCROLLFRAME -------- |
| 2349 | |
| 2350 | NS_ASSERTION(!display->IsScrollableOverflow() ||do { if (!(!display->IsScrollableOverflow() || state.mPresContext ->IsPaginated() || propagatedScrollFrom == aDocElement)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Scrollbars should have been propagated to the viewport" , "!display->IsScrollableOverflow() || state.mPresContext->IsPaginated() || propagatedScrollFrom == aDocElement" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2353); MOZ_PretendNoReturn (); } } while (0) |
| 2351 | state.mPresContext->IsPaginated() ||do { if (!(!display->IsScrollableOverflow() || state.mPresContext ->IsPaginated() || propagatedScrollFrom == aDocElement)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Scrollbars should have been propagated to the viewport" , "!display->IsScrollableOverflow() || state.mPresContext->IsPaginated() || propagatedScrollFrom == aDocElement" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2353); MOZ_PretendNoReturn (); } } while (0) |
| 2352 | propagatedScrollFrom == aDocElement,do { if (!(!display->IsScrollableOverflow() || state.mPresContext ->IsPaginated() || propagatedScrollFrom == aDocElement)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Scrollbars should have been propagated to the viewport" , "!display->IsScrollableOverflow() || state.mPresContext->IsPaginated() || propagatedScrollFrom == aDocElement" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2353); MOZ_PretendNoReturn (); } } while (0) |
| 2353 | "Scrollbars should have been propagated to the viewport")do { if (!(!display->IsScrollableOverflow() || state.mPresContext ->IsPaginated() || propagatedScrollFrom == aDocElement)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Scrollbars should have been propagated to the viewport" , "!display->IsScrollableOverflow() || state.mPresContext->IsPaginated() || propagatedScrollFrom == aDocElement" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2353); MOZ_PretendNoReturn (); } } while (0); |
| 2354 | |
| 2355 | if (MOZ_UNLIKELY(display->mDisplay == StyleDisplay::None)(__builtin_expect(!!(display->mDisplay == StyleDisplay::None ), 0))) { |
| 2356 | return nullptr; |
| 2357 | } |
| 2358 | |
| 2359 | // This implements "The Principal Writing Mode". |
| 2360 | // https://drafts.csswg.org/css-writing-modes-3/#principal-flow |
| 2361 | // |
| 2362 | // If there's a <body> element in an HTML document, its writing-mode, |
| 2363 | // direction, and text-orientation override the root element's used value. |
| 2364 | // |
| 2365 | // We need to copy <body>'s WritingMode to mDocElementContainingBlock before |
| 2366 | // construct mRootElementFrame so that anonymous internal frames such as |
| 2367 | // <html> with table style can copy their parent frame's mWritingMode in |
| 2368 | // nsIFrame::Init(). |
| 2369 | MOZ_ASSERT(!mRootElementFrame,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mRootElementFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mRootElementFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mRootElementFrame" " (" "We need to copy <body>'s principal writing-mode before " "constructing mRootElementFrame." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2371); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mRootElementFrame" ") (" "We need to copy <body>'s principal writing-mode before " "constructing mRootElementFrame." ")"); do { MOZ_CrashSequence (__null, 2371); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 2370 | "We need to copy <body>'s principal writing-mode before "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mRootElementFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mRootElementFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mRootElementFrame" " (" "We need to copy <body>'s principal writing-mode before " "constructing mRootElementFrame." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2371); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mRootElementFrame" ") (" "We need to copy <body>'s principal writing-mode before " "constructing mRootElementFrame." ")"); do { MOZ_CrashSequence (__null, 2371); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 2371 | "constructing mRootElementFrame.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mRootElementFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mRootElementFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mRootElementFrame" " (" "We need to copy <body>'s principal writing-mode before " "constructing mRootElementFrame." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2371); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mRootElementFrame" ") (" "We need to copy <body>'s principal writing-mode before " "constructing mRootElementFrame." ")"); do { MOZ_CrashSequence (__null, 2371); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 2372 | |
| 2373 | const WritingMode propagatedWM = [&] { |
| 2374 | const WritingMode rootWM(computedStyle); |
| 2375 | if (computedStyle->StyleDisplay()->IsContainAny()) { |
| 2376 | return rootWM; |
| 2377 | } |
| 2378 | Element* body = mDocument->GetBodyElement(); |
| 2379 | if (!body) { |
| 2380 | return rootWM; |
| 2381 | } |
| 2382 | RefPtr<ComputedStyle> bodyStyle = ResolveComputedStyle(body); |
| 2383 | if (bodyStyle->StyleDisplay()->IsContainAny()) { |
| 2384 | return rootWM; |
| 2385 | } |
| 2386 | const WritingMode bodyWM(bodyStyle); |
| 2387 | if (bodyWM != rootWM) { |
| 2388 | nsContentUtils::ReportToConsole(nsIScriptError::warningFlag, "Layout"_ns, |
| 2389 | mDocument, |
| 2390 | PropertiesFile::LAYOUT_PROPERTIES, |
| 2391 | "PrincipalWritingModePropagationWarning"); |
| 2392 | } |
| 2393 | return bodyWM; |
| 2394 | }(); |
| 2395 | |
| 2396 | mDocElementContainingBlock->PropagateWritingModeToSelfAndAncestors( |
| 2397 | propagatedWM); |
| 2398 | |
| 2399 | // Push the absolute containing block now so we can absolutely position the |
| 2400 | // root element |
| 2401 | nsFrameConstructorSaveState canvasCbSaveState; |
| 2402 | mCanvasFrame->AddStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 2403 | |
| 2404 | state.PushAbsoluteContainingBlock(mCanvasFrame, mCanvasFrame, |
| 2405 | canvasCbSaveState); |
| 2406 | |
| 2407 | nsFrameConstructorSaveState docElementCbSaveState; |
| 2408 | if (mCanvasFrame != mDocElementContainingBlock) { |
| 2409 | mDocElementContainingBlock->AddStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 2410 | state.PushAbsoluteContainingBlock(mDocElementContainingBlock, |
| 2411 | mDocElementContainingBlock, |
| 2412 | docElementCbSaveState); |
| 2413 | } |
| 2414 | |
| 2415 | // The rules from CSS 2.1, section 9.2.4, have already been applied |
| 2416 | // by the style system, so we can assume that display->mDisplay is |
| 2417 | // either NONE, BLOCK, or TABLE. |
| 2418 | |
| 2419 | // contentFrame is the primary frame for the root element. frameList contains |
| 2420 | // the children of the initial containing block. |
| 2421 | // |
| 2422 | // The first of those frames is usually `contentFrame`, but it can be |
| 2423 | // different, in particular if the root frame is positioned, in which case |
| 2424 | // contentFrame is the out-of-flow frame and frameList.FirstChild() is the |
| 2425 | // placeholder. |
| 2426 | // |
| 2427 | // The rest of the frames in frameList are the anonymous content of the canvas |
| 2428 | // frame. |
| 2429 | nsContainerFrame* contentFrame; |
| 2430 | nsFrameList frameList; |
| 2431 | bool processChildren = false; |
| 2432 | |
| 2433 | nsFrameConstructorSaveState absoluteSaveState; |
| 2434 | |
| 2435 | if (aDocElement->IsSVGElement()) { |
| 2436 | if (!aDocElement->IsSVGElement(nsGkAtoms::svg)) { |
| 2437 | return nullptr; |
| 2438 | } |
| 2439 | // We're going to call the right function ourselves, so no need to give a |
| 2440 | // function to this FrameConstructionData. |
| 2441 | |
| 2442 | // XXXbz on the other hand, if we converted this whole function to |
| 2443 | // FrameConstructionData/Item, then we'd need the right function |
| 2444 | // here... but would probably be able to get away with less code in this |
| 2445 | // function in general. |
| 2446 | static constexpr FrameConstructionData rootSVGData; |
| 2447 | AutoFrameConstructionItem item(this, &rootSVGData, aDocElement, |
| 2448 | do_AddRef(computedStyle), true); |
| 2449 | |
| 2450 | contentFrame = static_cast<nsContainerFrame*>(ConstructOuterSVG( |
| 2451 | state, item, mDocElementContainingBlock, display, frameList)); |
| 2452 | } else if (display->mDisplay == StyleDisplay::Flex || |
| 2453 | display->mDisplay == StyleDisplay::WebkitBox || |
| 2454 | display->mDisplay == StyleDisplay::Grid || |
| 2455 | display->mDisplay == StyleDisplay::GridLanes) { |
| 2456 | auto func = [&] { |
| 2457 | if (display->mDisplay == StyleDisplay::Grid || |
| 2458 | display->mDisplay == StyleDisplay::GridLanes) { |
| 2459 | return NS_NewGridContainerFrame; |
| 2460 | } |
| 2461 | return NS_NewFlexContainerFrame; |
| 2462 | }(); |
| 2463 | contentFrame = func(mPresShell, computedStyle); |
| 2464 | InitAndRestoreFrame( |
| 2465 | state, aDocElement, |
| 2466 | state.GetGeometricParent(*display, mDocElementContainingBlock), |
| 2467 | contentFrame); |
| 2468 | state.AddChild(contentFrame, frameList, aDocElement, |
| 2469 | mDocElementContainingBlock); |
| 2470 | processChildren = true; |
| 2471 | |
| 2472 | contentFrame->AddStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 2473 | if (contentFrame->IsAbsPosContainingBlock()) { |
| 2474 | state.PushAbsoluteContainingBlock(contentFrame, contentFrame, |
| 2475 | absoluteSaveState); |
| 2476 | } |
| 2477 | } else if (display->mDisplay == StyleDisplay::Table) { |
| 2478 | // We're going to call the right function ourselves, so no need to give a |
| 2479 | // function to this FrameConstructionData. |
| 2480 | |
| 2481 | // XXXbz on the other hand, if we converted this whole function to |
| 2482 | // FrameConstructionData/Item, then we'd need the right function |
| 2483 | // here... but would probably be able to get away with less code in this |
| 2484 | // function in general. |
| 2485 | static constexpr FrameConstructionData rootTableData; |
| 2486 | AutoFrameConstructionItem item(this, &rootTableData, aDocElement, |
| 2487 | do_AddRef(computedStyle), true); |
| 2488 | |
| 2489 | // if the document is a table then just populate it. |
| 2490 | contentFrame = static_cast<nsContainerFrame*>(ConstructTable( |
| 2491 | state, item, mDocElementContainingBlock, display, frameList)); |
| 2492 | } else if (display->DisplayInside() == StyleDisplayInside::Ruby) { |
| 2493 | static constexpr FrameConstructionData data( |
| 2494 | &nsCSSFrameConstructor::ConstructBlockRubyFrame); |
| 2495 | AutoFrameConstructionItem item(this, &data, aDocElement, |
| 2496 | do_AddRef(computedStyle), true); |
| 2497 | contentFrame = static_cast<nsContainerFrame*>(ConstructBlockRubyFrame( |
| 2498 | state, item, |
| 2499 | state.GetGeometricParent(*display, mDocElementContainingBlock), display, |
| 2500 | frameList)); |
| 2501 | } else { |
| 2502 | MOZ_ASSERT(display->mDisplay == StyleDisplay::Block ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(display->mDisplay == StyleDisplay::Block || display ->mDisplay == StyleDisplay::FlowRoot)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(display->mDisplay == StyleDisplay ::Block || display->mDisplay == StyleDisplay::FlowRoot))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("display->mDisplay == StyleDisplay::Block || display->mDisplay == StyleDisplay::FlowRoot" " (" "Unhandled display type for root element" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2504); AnnotateMozCrashReason("MOZ_ASSERT" "(" "display->mDisplay == StyleDisplay::Block || display->mDisplay == StyleDisplay::FlowRoot" ") (" "Unhandled display type for root element" ")"); do { MOZ_CrashSequence (__null, 2504); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 2503 | display->mDisplay == StyleDisplay::FlowRoot,do { static_assert( mozilla::detail::AssertionConditionType< decltype(display->mDisplay == StyleDisplay::Block || display ->mDisplay == StyleDisplay::FlowRoot)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(display->mDisplay == StyleDisplay ::Block || display->mDisplay == StyleDisplay::FlowRoot))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("display->mDisplay == StyleDisplay::Block || display->mDisplay == StyleDisplay::FlowRoot" " (" "Unhandled display type for root element" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2504); AnnotateMozCrashReason("MOZ_ASSERT" "(" "display->mDisplay == StyleDisplay::Block || display->mDisplay == StyleDisplay::FlowRoot" ") (" "Unhandled display type for root element" ")"); do { MOZ_CrashSequence (__null, 2504); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 2504 | "Unhandled display type for root element")do { static_assert( mozilla::detail::AssertionConditionType< decltype(display->mDisplay == StyleDisplay::Block || display ->mDisplay == StyleDisplay::FlowRoot)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(display->mDisplay == StyleDisplay ::Block || display->mDisplay == StyleDisplay::FlowRoot))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("display->mDisplay == StyleDisplay::Block || display->mDisplay == StyleDisplay::FlowRoot" " (" "Unhandled display type for root element" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2504); AnnotateMozCrashReason("MOZ_ASSERT" "(" "display->mDisplay == StyleDisplay::Block || display->mDisplay == StyleDisplay::FlowRoot" ") (" "Unhandled display type for root element" ")"); do { MOZ_CrashSequence (__null, 2504); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 2505 | contentFrame = NS_NewBlockFrame(mPresShell, computedStyle); |
| 2506 | ConstructBlock( |
| 2507 | state, aDocElement, |
| 2508 | state.GetGeometricParent(*display, mDocElementContainingBlock), |
| 2509 | mDocElementContainingBlock, computedStyle, &contentFrame, frameList, |
| 2510 | contentFrame->IsAbsPosContainingBlock() ? contentFrame : nullptr); |
| 2511 | } |
| 2512 | |
| 2513 | MOZ_ASSERT(frameList.FirstChild())do { static_assert( mozilla::detail::AssertionConditionType< decltype(frameList.FirstChild())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(frameList.FirstChild()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("frameList.FirstChild()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2513); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "frameList.FirstChild()" ")"); do { MOZ_CrashSequence (__null, 2513); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 2514 | MOZ_ASSERT(frameList.FirstChild()->GetContent() == aDocElement)do { static_assert( mozilla::detail::AssertionConditionType< decltype(frameList.FirstChild()->GetContent() == aDocElement )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(frameList.FirstChild()->GetContent() == aDocElement ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "frameList.FirstChild()->GetContent() == aDocElement", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2514); AnnotateMozCrashReason("MOZ_ASSERT" "(" "frameList.FirstChild()->GetContent() == aDocElement" ")"); do { MOZ_CrashSequence(__null, 2514); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2515 | MOZ_ASSERT(contentFrame)do { static_assert( mozilla::detail::AssertionConditionType< decltype(contentFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(contentFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("contentFrame", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2515); AnnotateMozCrashReason("MOZ_ASSERT" "(" "contentFrame" ")"); do { MOZ_CrashSequence(__null, 2515); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2516 | |
| 2517 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(processChildren ? !mRootElementFrame : mRootElementFrame == contentFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(processChildren ? !mRootElementFrame : mRootElementFrame == contentFrame))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("processChildren ? !mRootElementFrame : mRootElementFrame == contentFrame" " (" "unexpected mRootElementFrame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2519); AnnotateMozCrashReason("MOZ_ASSERT" "(" "processChildren ? !mRootElementFrame : mRootElementFrame == contentFrame" ") (" "unexpected mRootElementFrame" ")"); do { MOZ_CrashSequence (__null, 2519); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 2518 | processChildren ? !mRootElementFrame : mRootElementFrame == contentFrame,do { static_assert( mozilla::detail::AssertionConditionType< decltype(processChildren ? !mRootElementFrame : mRootElementFrame == contentFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(processChildren ? !mRootElementFrame : mRootElementFrame == contentFrame))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("processChildren ? !mRootElementFrame : mRootElementFrame == contentFrame" " (" "unexpected mRootElementFrame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2519); AnnotateMozCrashReason("MOZ_ASSERT" "(" "processChildren ? !mRootElementFrame : mRootElementFrame == contentFrame" ") (" "unexpected mRootElementFrame" ")"); do { MOZ_CrashSequence (__null, 2519); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 2519 | "unexpected mRootElementFrame")do { static_assert( mozilla::detail::AssertionConditionType< decltype(processChildren ? !mRootElementFrame : mRootElementFrame == contentFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(processChildren ? !mRootElementFrame : mRootElementFrame == contentFrame))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("processChildren ? !mRootElementFrame : mRootElementFrame == contentFrame" " (" "unexpected mRootElementFrame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2519); AnnotateMozCrashReason("MOZ_ASSERT" "(" "processChildren ? !mRootElementFrame : mRootElementFrame == contentFrame" ") (" "unexpected mRootElementFrame" ")"); do { MOZ_CrashSequence (__null, 2519); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 2520 | if (processChildren) { |
| 2521 | mRootElementFrame = contentFrame; |
| 2522 | } |
| 2523 | |
| 2524 | // Figure out which frame has the main style for the document element, |
| 2525 | // assigning it to mRootElementStyleFrame. |
| 2526 | // Backgrounds should be propagated from that frame to the viewport. |
| 2527 | contentFrame->GetParentComputedStyle(&mRootElementStyleFrame); |
| 2528 | bool isChild = mRootElementStyleFrame && |
| 2529 | mRootElementStyleFrame->GetParent() == contentFrame; |
| 2530 | if (!isChild) { |
| 2531 | mRootElementStyleFrame = mRootElementFrame; |
| 2532 | } |
| 2533 | |
| 2534 | if (processChildren) { |
| 2535 | // Still need to process the child content |
| 2536 | nsFrameList childList; |
| 2537 | |
| 2538 | NS_ASSERTION(do { if (!(!contentFrame->IsBlockFrameOrSubclass() && !contentFrame->IsSVGFrame())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Only XUL frames should reach here", "!contentFrame->IsBlockFrameOrSubclass() && !contentFrame->IsSVGFrame()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2540); MOZ_PretendNoReturn (); } } while (0) |
| 2539 | !contentFrame->IsBlockFrameOrSubclass() && !contentFrame->IsSVGFrame(),do { if (!(!contentFrame->IsBlockFrameOrSubclass() && !contentFrame->IsSVGFrame())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Only XUL frames should reach here", "!contentFrame->IsBlockFrameOrSubclass() && !contentFrame->IsSVGFrame()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2540); MOZ_PretendNoReturn (); } } while (0) |
| 2540 | "Only XUL frames should reach here")do { if (!(!contentFrame->IsBlockFrameOrSubclass() && !contentFrame->IsSVGFrame())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Only XUL frames should reach here", "!contentFrame->IsBlockFrameOrSubclass() && !contentFrame->IsSVGFrame()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2540); MOZ_PretendNoReturn (); } } while (0); |
| 2541 | |
| 2542 | nsFrameConstructorSaveState floatSaveState; |
| 2543 | state.MaybePushFloatContainingBlock(contentFrame, floatSaveState); |
| 2544 | |
| 2545 | ProcessChildren(state, aDocElement, computedStyle, contentFrame, true, |
| 2546 | childList, false); |
| 2547 | |
| 2548 | // Set the initial child lists |
| 2549 | contentFrame->SetInitialChildList(FrameChildListID::Principal, |
| 2550 | std::move(childList)); |
| 2551 | } |
| 2552 | |
| 2553 | nsIFrame* newFrame = frameList.FirstChild(); |
| 2554 | // set the primary frame |
| 2555 | aDocElement->SetPrimaryFrame(contentFrame); |
| 2556 | mDocElementContainingBlock->AppendFrames(FrameChildListID::Principal, |
| 2557 | std::move(frameList)); |
| 2558 | |
| 2559 | // NOTE(emilio): This is in the reverse order compared to normal anonymous |
| 2560 | // children. We usually generate anonymous kids first, then non-anonymous, |
| 2561 | // but we generate the doc element frame the other way around. This is fine |
| 2562 | // either way, but generating anonymous children in a different order requires |
| 2563 | // changing nsCanvasFrame (and a whole lot of other potentially unknown code) |
| 2564 | // to look at the last child to find the root frame rather than the first |
| 2565 | // child. |
| 2566 | ConstructAnonymousContentForRoot(state, mCanvasFrame, |
| 2567 | mRootElementFrame->GetContent(), frameList); |
| 2568 | mCanvasFrame->AppendFrames(FrameChildListID::Principal, std::move(frameList)); |
| 2569 | |
| 2570 | return newFrame; |
| 2571 | } |
| 2572 | |
| 2573 | RestyleManager* nsCSSFrameConstructor::RestyleManager() const { |
| 2574 | return mPresShell->GetPresContext()->RestyleManager(); |
| 2575 | } |
| 2576 | |
| 2577 | ViewportFrame* nsCSSFrameConstructor::ConstructRootFrame() { |
| 2578 | AUTO_PROFILER_LABEL_HOT("nsCSSFrameConstructor::ConstructRootFrame",mozilla::AutoProfilerLabelHot raiiObject2579( "nsCSSFrameConstructor::ConstructRootFrame" , nullptr, JS::ProfilingCategoryPair::LAYOUT_FrameConstruction ) |
| 2579 | LAYOUT_FrameConstruction)mozilla::AutoProfilerLabelHot raiiObject2579( "nsCSSFrameConstructor::ConstructRootFrame" , nullptr, JS::ProfilingCategoryPair::LAYOUT_FrameConstruction ); |
| 2580 | AUTO_LAYOUT_PHASE_ENTRY_POINT(mPresShell->GetPresContext(), FrameC)nsAutoLayoutPhase autoLayoutPhase((mPresShell->GetPresContext ()), (nsLayoutPhase::FrameC)); |
| 2581 | |
| 2582 | ServoStyleSet* styleSet = mPresShell->StyleSet(); |
| 2583 | |
| 2584 | // --------- BUILD VIEWPORT ----------- |
| 2585 | RefPtr<ComputedStyle> viewportPseudoStyle = |
| 2586 | styleSet->ResolveNonInheritingAnonymousBoxStyle( |
| 2587 | PseudoStyleType::MozViewport); |
| 2588 | ViewportFrame* viewportFrame = |
| 2589 | NS_NewViewportFrame(mPresShell, viewportPseudoStyle); |
| 2590 | |
| 2591 | // XXXbz do we _have_ to pass a null content pointer to that frame? |
| 2592 | // Would it really kill us to pass in the root element or something? |
| 2593 | // What would that break? |
| 2594 | viewportFrame->Init(nullptr, nullptr, nullptr); |
| 2595 | |
| 2596 | viewportFrame->AddStateBits(NS_FRAME_OWNS_ANON_BOXES); |
| 2597 | |
| 2598 | mPresShell->SetNeedsWindowPropertiesSync(); |
| 2599 | |
| 2600 | // Make it an absolute container for fixed-pos elements |
| 2601 | viewportFrame->AddStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 2602 | viewportFrame->MarkAsAbsoluteContainingBlock(); |
| 2603 | |
| 2604 | return viewportFrame; |
| 2605 | } |
| 2606 | |
| 2607 | void nsCSSFrameConstructor::SetUpDocElementContainingBlock( |
| 2608 | nsIContent* aDocElement) { |
| 2609 | MOZ_ASSERT(aDocElement, "No element?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDocElement)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDocElement))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aDocElement" " (" "No element?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2609); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDocElement" ") (" "No element?" ")"); do { MOZ_CrashSequence(__null, 2609 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 2610 | MOZ_ASSERT(!aDocElement->GetParent(), "Not root content?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aDocElement->GetParent())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aDocElement->GetParent() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aDocElement->GetParent()" " (" "Not root content?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2610); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aDocElement->GetParent()" ") (" "Not root content?" ")"); do { MOZ_CrashSequence(__null , 2610); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 2611 | MOZ_ASSERT(aDocElement->GetUncomposedDoc(), "Not in a document?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDocElement->GetUncomposedDoc())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDocElement->GetUncomposedDoc ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aDocElement->GetUncomposedDoc()" " (" "Not in a document?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 2611 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDocElement->GetUncomposedDoc()" ") (" "Not in a document?" ")"); do { MOZ_CrashSequence(__null , 2611); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 2612 | MOZ_ASSERT(aDocElement->GetUncomposedDoc()->GetRootElement() == aDocElement,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDocElement->GetUncomposedDoc()->GetRootElement () == aDocElement)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDocElement->GetUncomposedDoc ()->GetRootElement() == aDocElement))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aDocElement->GetUncomposedDoc()->GetRootElement() == aDocElement" " (" "Not the root of the document?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2613); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDocElement->GetUncomposedDoc()->GetRootElement() == aDocElement" ") (" "Not the root of the document?" ")"); do { MOZ_CrashSequence (__null, 2613); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 2613 | "Not the root of the document?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDocElement->GetUncomposedDoc()->GetRootElement () == aDocElement)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDocElement->GetUncomposedDoc ()->GetRootElement() == aDocElement))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aDocElement->GetUncomposedDoc()->GetRootElement() == aDocElement" " (" "Not the root of the document?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2613); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDocElement->GetUncomposedDoc()->GetRootElement() == aDocElement" ") (" "Not the root of the document?" ")"); do { MOZ_CrashSequence (__null, 2613); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 2614 | |
| 2615 | /* |
| 2616 | how the root frame hierarchy should look |
| 2617 | |
| 2618 | Galley presentation, with scrolling: |
| 2619 | |
| 2620 | ViewportFrame [fixed-cb] |
| 2621 | ScrollContainerFrame (if needed) |
| 2622 | nsCanvasFrame [abs-cb] |
| 2623 | root element frame (nsBlockFrame, SVGOuterSVGFrame, |
| 2624 | nsTableWrapperFrame, nsPlaceholderFrame, |
| 2625 | nsFlexContainerFrame, nsGridContainerFrame) |
| 2626 | |
| 2627 | Print presentation, non-XUL |
| 2628 | |
| 2629 | ViewportFrame |
| 2630 | nsCanvasFrame |
| 2631 | nsPageSequenceFrame |
| 2632 | PrintedSheetFrame |
| 2633 | nsPageFrame |
| 2634 | nsPageContentFrame [fixed-cb] |
| 2635 | nsCanvasFrame [abs-cb] |
| 2636 | root element frame (nsBlockFrame, SVGOuterSVGFrame, |
| 2637 | nsTableWrapperFrame, nsPlaceholderFrame, |
| 2638 | nsFlexContainerFrame, |
| 2639 | nsGridContainerFrame) |
| 2640 | |
| 2641 | Print-preview presentation, non-XUL |
| 2642 | |
| 2643 | ViewportFrame |
| 2644 | ScrollContainerFrame |
| 2645 | nsCanvasFrame |
| 2646 | nsPageSequenceFrame |
| 2647 | PrintedSheetFrame |
| 2648 | nsPageFrame |
| 2649 | nsPageContentFrame [fixed-cb] |
| 2650 | nsCanvasFrame [abs-cb] |
| 2651 | root element frame (nsBlockFrame, SVGOuterSVGFrame, |
| 2652 | nsTableWrapperFrame, |
| 2653 | nsPlaceholderFrame, |
| 2654 | nsFlexContainerFrame, |
| 2655 | nsGridContainerFrame) |
| 2656 | |
| 2657 | Print/print preview of XUL is not supported. |
| 2658 | [fixed-cb]: the default containing block for fixed-pos content |
| 2659 | [abs-cb]: the default containing block for abs-pos content |
| 2660 | |
| 2661 | Meaning of nsCSSFrameConstructor fields: |
| 2662 | mRootElementFrame is "root element frame". This is the primary frame for |
| 2663 | the root element. |
| 2664 | mDocElementContainingBlock is the parent of mRootElementFrame |
| 2665 | (i.e. nsCanvasFrame) |
| 2666 | mPageSequenceFrame is the nsPageSequenceFrame, or null if there isn't |
| 2667 | one |
| 2668 | */ |
| 2669 | |
| 2670 | // --------- CREATE ROOT FRAME ------- |
| 2671 | |
| 2672 | // Create the root frame. The document element's frame is a child of the |
| 2673 | // root frame. |
| 2674 | // |
| 2675 | // The root frame serves two purposes: |
| 2676 | // - reserves space for any margins needed for the document element's frame |
| 2677 | // - renders the document element's background. This ensures the background |
| 2678 | // covers the entire canvas as specified by the CSS2 spec |
| 2679 | |
| 2680 | nsPresContext* presContext = mPresShell->GetPresContext(); |
| 2681 | const bool isPaginated = presContext->IsRootPaginatedDocument(); |
| 2682 | |
| 2683 | const bool isHTML = aDocElement->IsHTMLElement(); |
| 2684 | const bool isXUL = !isHTML && aDocElement->IsXULElement(); |
| 2685 | |
| 2686 | const bool isScrollable = [&] { |
| 2687 | if (isPaginated) { |
| 2688 | return presContext->HasPaginatedScrolling(); |
| 2689 | } |
| 2690 | // Never create scrollbars for XUL documents or top level XHTML documents |
| 2691 | // that disable scrolling. |
| 2692 | if (isXUL) { |
| 2693 | return false; |
| 2694 | } |
| 2695 | if (aDocElement->OwnerDoc()->ChromeRulesEnabled() && |
| 2696 | aDocElement->AsElement()->AttrValueIs( |
| 2697 | kNameSpaceID_None, nsGkAtoms::scrolling, nsGkAtoms::_false, |
| 2698 | eCaseMatters)) { |
| 2699 | return false; |
| 2700 | } |
| 2701 | return true; |
| 2702 | }(); |
| 2703 | |
| 2704 | nsContainerFrame* viewportFrame = |
| 2705 | static_cast<nsContainerFrame*>(GetRootFrame()); |
| 2706 | ComputedStyle* viewportPseudoStyle = viewportFrame->Style(); |
| 2707 | |
| 2708 | nsCanvasFrame* rootCanvasFrame = |
| 2709 | NS_NewCanvasFrame(mPresShell, viewportPseudoStyle); |
| 2710 | mCanvasFrame = rootCanvasFrame; |
| 2711 | mDocElementContainingBlock = rootCanvasFrame; |
| 2712 | |
| 2713 | // --------- IF SCROLLABLE WRAP IN SCROLLFRAME -------- |
| 2714 | |
| 2715 | // If the device supports scrolling (e.g., in galley mode on the screen and |
| 2716 | // for print-preview, but not when printing), then create a scroll frame that |
| 2717 | // will act as the scrolling mechanism for the viewport. |
| 2718 | // XXX Do we even need a viewport when printing to a printer? |
| 2719 | |
| 2720 | // We no longer need to do overflow propagation here. It's taken care of |
| 2721 | // when we construct frames for the element whose overflow might be |
| 2722 | // propagated |
| 2723 | NS_ASSERTION(!isScrollable || !isXUL,do { if (!(!isScrollable || !isXUL)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "XUL documents should never be scrollable - see above", "!isScrollable || !isXUL" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2724); MOZ_PretendNoReturn (); } } while (0) |
| 2724 | "XUL documents should never be scrollable - see above")do { if (!(!isScrollable || !isXUL)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "XUL documents should never be scrollable - see above", "!isScrollable || !isXUL" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2724); MOZ_PretendNoReturn (); } } while (0); |
| 2725 | |
| 2726 | nsContainerFrame* newFrame = rootCanvasFrame; |
| 2727 | RefPtr<ComputedStyle> rootPseudoStyle; |
| 2728 | // we must create a state because if the scrollbars are GFX it needs the |
| 2729 | // state to build the scrollbar frames. |
| 2730 | nsFrameConstructorState state(mPresShell, nullptr, nullptr, nullptr); |
| 2731 | |
| 2732 | // Start off with the viewport as parent; we'll adjust it as needed. |
| 2733 | nsContainerFrame* parentFrame = viewportFrame; |
| 2734 | |
| 2735 | ServoStyleSet* styleSet = mPresShell->StyleSet(); |
| 2736 | // If paginated, make sure we don't put scrollbars in |
| 2737 | if (!isScrollable) { |
| 2738 | rootPseudoStyle = styleSet->ResolveNonInheritingAnonymousBoxStyle( |
| 2739 | PseudoStyleType::MozCanvas); |
| 2740 | } else { |
| 2741 | // Build the frame. We give it the content we are wrapping which is the |
| 2742 | // document element, the root frame, the parent view port frame, and we |
| 2743 | // should get back the new frame and the scrollable view if one was |
| 2744 | // created. |
| 2745 | |
| 2746 | // Resolve a style for the scrollframe |
| 2747 | RefPtr<ComputedStyle> computedStyle = |
| 2748 | styleSet->ResolveNonInheritingAnonymousBoxStyle( |
| 2749 | PseudoStyleType::MozViewportScroll); |
| 2750 | |
| 2751 | newFrame = nullptr; |
| 2752 | rootPseudoStyle = BeginBuildingScrollContainerFrame( |
| 2753 | state, aDocElement, computedStyle, viewportFrame, true, newFrame); |
| 2754 | parentFrame = newFrame; |
| 2755 | } |
| 2756 | |
| 2757 | rootCanvasFrame->SetComputedStyleWithoutNotification(rootPseudoStyle); |
| 2758 | rootCanvasFrame->Init(aDocElement, parentFrame, nullptr); |
| 2759 | |
| 2760 | if (isScrollable) { |
| 2761 | FinishBuildingScrollContainerFrame(parentFrame, rootCanvasFrame); |
| 2762 | } |
| 2763 | |
| 2764 | if (isPaginated) { |
| 2765 | // Create a page sequence frame |
| 2766 | { |
| 2767 | RefPtr<ComputedStyle> pageSequenceStyle = |
| 2768 | styleSet->ResolveInheritingAnonymousBoxStyle( |
| 2769 | PseudoStyleType::MozPageSequence, viewportPseudoStyle); |
| 2770 | mPageSequenceFrame = |
| 2771 | NS_NewPageSequenceFrame(mPresShell, pageSequenceStyle); |
| 2772 | mPageSequenceFrame->Init(aDocElement, rootCanvasFrame, nullptr); |
| 2773 | SetInitialSingleChild(rootCanvasFrame, mPageSequenceFrame); |
| 2774 | } |
| 2775 | |
| 2776 | // Create the first printed sheet frame, as the sole child (for now) of our |
| 2777 | // page sequence frame (mPageSequenceFrame). |
| 2778 | auto* printedSheetFrame = |
| 2779 | ConstructPrintedSheetFrame(mPresShell, mPageSequenceFrame, nullptr); |
| 2780 | SetInitialSingleChild(mPageSequenceFrame, printedSheetFrame); |
| 2781 | |
| 2782 | MOZ_ASSERT(!mNextPageContentFramePageName,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mNextPageContentFramePageName)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mNextPageContentFramePageName ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!mNextPageContentFramePageName" " (" "Next page name should not have been set." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 2783 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mNextPageContentFramePageName" ") (" "Next page name should not have been set." ")"); do { MOZ_CrashSequence (__null, 2783); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 2783 | "Next page name should not have been set.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mNextPageContentFramePageName)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mNextPageContentFramePageName ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!mNextPageContentFramePageName" " (" "Next page name should not have been set." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 2783 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mNextPageContentFramePageName" ") (" "Next page name should not have been set." ")"); do { MOZ_CrashSequence (__null, 2783); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 2784 | |
| 2785 | // Create the first page, as the sole child (for now) of the printed sheet |
| 2786 | // frame that we just created. |
| 2787 | nsCanvasFrame* canvasFrame; |
| 2788 | nsContainerFrame* pageFrame = |
| 2789 | ConstructPageFrame(mPresShell, printedSheetFrame, nullptr, canvasFrame); |
| 2790 | pageFrame->AddStateBits(NS_FRAME_OWNS_ANON_BOXES); |
| 2791 | SetInitialSingleChild(printedSheetFrame, pageFrame); |
| 2792 | |
| 2793 | // The eventual parent of the document element frame. |
| 2794 | // XXX should this be set for every new page (in ConstructPageFrame)? |
| 2795 | mDocElementContainingBlock = canvasFrame; |
| 2796 | } |
| 2797 | |
| 2798 | if (viewportFrame->HasAnyStateBits(NS_FRAME_FIRST_REFLOW)) { |
| 2799 | SetInitialSingleChild(viewportFrame, newFrame); |
| 2800 | } else { |
| 2801 | viewportFrame->AppendFrames(FrameChildListID::Principal, |
| 2802 | nsFrameList(newFrame, newFrame)); |
| 2803 | } |
| 2804 | |
| 2805 | if (ScrollContainerFrame* rootScroll = do_QueryFrame(newFrame)) { |
| 2806 | if (nsCOMPtr state = mPresShell->GetDocument()->GetLayoutHistoryState(); |
| 2807 | state && state->HasStates()) { |
| 2808 | rootScroll->RestoreState(state.get()); |
| 2809 | } |
| 2810 | } |
| 2811 | } |
| 2812 | |
| 2813 | void nsCSSFrameConstructor::ConstructAnonymousContentForRoot( |
| 2814 | nsFrameConstructorState& aState, nsContainerFrame* aCanvasFrame, |
| 2815 | nsIContent* aDocElement, nsFrameList& aFrameList) { |
| 2816 | NS_ASSERTION(aCanvasFrame->IsCanvasFrame(), "aFrame should be canvas frame!")do { if (!(aCanvasFrame->IsCanvasFrame())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "aFrame should be canvas frame!", "aCanvasFrame->IsCanvasFrame()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2816); MOZ_PretendNoReturn (); } } while (0); |
| 2817 | MOZ_ASSERT(mRootElementFrame->GetContent() == aDocElement)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mRootElementFrame->GetContent() == aDocElement)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(mRootElementFrame->GetContent() == aDocElement))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("mRootElementFrame->GetContent() == aDocElement" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 2817); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "mRootElementFrame->GetContent() == aDocElement" ")"); do { MOZ_CrashSequence(__null, 2817); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2818 | |
| 2819 | AutoTArray<nsIAnonymousContentCreator::ContentInfo, 4> anonymousItems; |
| 2820 | GetAnonymousContent(aDocElement, aCanvasFrame, anonymousItems); |
| 2821 | |
| 2822 | // If we get here, we are rebuilding the anonymous content of the root |
| 2823 | // element. In this case, we also need to deal with the custom content |
| 2824 | // container. |
| 2825 | if (auto* container = |
| 2826 | aState.mPresContext->Document()->GetCustomContentContainer()) { |
| 2827 | // FIXME(emilio, bug 1852735): This is only needed because of the sync frame |
| 2828 | // construction from PresShell::Initialize. See the similar code-path in |
| 2829 | // ConstructDocElementFrame. |
| 2830 | if (!container->HasServoData()) { |
| 2831 | mPresShell->StyleSet()->StyleNewSubtree(container); |
| 2832 | } |
| 2833 | anonymousItems.AppendElement(container); |
| 2834 | } |
| 2835 | |
| 2836 | if (anonymousItems.IsEmpty()) { |
| 2837 | return; |
| 2838 | } |
| 2839 | |
| 2840 | AutoFrameConstructionItemList itemsToConstruct(this); |
| 2841 | AutoFrameConstructionPageName pageNameTracker(aState, aCanvasFrame); |
| 2842 | AddFCItemsForAnonymousContent(aState, aCanvasFrame, anonymousItems, |
| 2843 | itemsToConstruct, pageNameTracker); |
| 2844 | ConstructFramesFromItemList(aState, itemsToConstruct, aCanvasFrame, |
| 2845 | /* aParentIsWrapperAnonBox = */ false, |
| 2846 | aFrameList); |
| 2847 | } |
| 2848 | |
| 2849 | PrintedSheetFrame* nsCSSFrameConstructor::ConstructPrintedSheetFrame( |
| 2850 | PresShell* aPresShell, nsContainerFrame* aParentFrame, |
| 2851 | nsIFrame* aPrevSheetFrame) { |
| 2852 | RefPtr<ComputedStyle> printedSheetPseudoStyle = |
| 2853 | aPresShell->StyleSet()->ResolveNonInheritingAnonymousBoxStyle( |
| 2854 | PseudoStyleType::MozPrintedSheet); |
| 2855 | |
| 2856 | auto* printedSheetFrame = |
| 2857 | NS_NewPrintedSheetFrame(aPresShell, printedSheetPseudoStyle); |
| 2858 | |
| 2859 | printedSheetFrame->Init(nullptr, aParentFrame, aPrevSheetFrame); |
| 2860 | |
| 2861 | return printedSheetFrame; |
| 2862 | } |
| 2863 | |
| 2864 | nsContainerFrame* nsCSSFrameConstructor::ConstructPageFrame( |
| 2865 | PresShell* aPresShell, nsContainerFrame* aParentFrame, |
| 2866 | nsIFrame* aPrevPageFrame, nsCanvasFrame*& aCanvasFrame) { |
| 2867 | ServoStyleSet* styleSet = aPresShell->StyleSet(); |
| 2868 | |
| 2869 | RefPtr<ComputedStyle> pagePseudoStyle = |
| 2870 | styleSet->ResolveNonInheritingAnonymousBoxStyle(PseudoStyleType::MozPage); |
| 2871 | |
| 2872 | nsContainerFrame* pageFrame = NS_NewPageFrame(aPresShell, pagePseudoStyle); |
| 2873 | |
| 2874 | // Initialize the page frame and force it to have a view. This makes printing |
| 2875 | // of the pages easier and faster. |
| 2876 | pageFrame->Init(nullptr, aParentFrame, aPrevPageFrame); |
| 2877 | |
| 2878 | RefPtr<const nsAtom> pageName; |
| 2879 | if (mNextPageContentFramePageName) { |
| 2880 | pageName = mNextPageContentFramePageName.forget(); |
| 2881 | } else if (aPrevPageFrame) { |
| 2882 | pageName = aPrevPageFrame->ComputePageValue(); |
| 2883 | MOZ_ASSERT(pageName,do { static_assert( mozilla::detail::AssertionConditionType< decltype(pageName)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pageName))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pageName" " (" "Page name from prev-in-flow should not have been null" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 2884 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pageName" ") (" "Page name from prev-in-flow should not have been null" ")"); do { MOZ_CrashSequence(__null, 2884); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2884 | "Page name from prev-in-flow should not have been null")do { static_assert( mozilla::detail::AssertionConditionType< decltype(pageName)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(pageName))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("pageName" " (" "Page name from prev-in-flow should not have been null" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 2884 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pageName" ") (" "Page name from prev-in-flow should not have been null" ")"); do { MOZ_CrashSequence(__null, 2884); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2885 | } |
| 2886 | RefPtr<ComputedStyle> pageContentPseudoStyle = |
| 2887 | styleSet->ResolvePageContentStyle(pageName, |
| 2888 | StylePagePseudoClassFlags::NONE); |
| 2889 | |
| 2890 | nsContainerFrame* pageContentFrame = NS_NewPageContentFrame( |
| 2891 | aPresShell, pageContentPseudoStyle, pageName.forget()); |
| 2892 | |
| 2893 | nsPageContentFrame* prevPageContentFrame = nullptr; |
| 2894 | if (aPrevPageFrame) { |
| 2895 | MOZ_ASSERT(aPrevPageFrame->IsPageFrame())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPrevPageFrame->IsPageFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aPrevPageFrame->IsPageFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aPrevPageFrame->IsPageFrame()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2895); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPrevPageFrame->IsPageFrame()" ")"); do { MOZ_CrashSequence(__null, 2895); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2896 | prevPageContentFrame = |
| 2897 | static_cast<nsPageFrame*>(aPrevPageFrame)->PageContentFrame(); |
| 2898 | } |
| 2899 | pageContentFrame->Init(nullptr, pageFrame, prevPageContentFrame); |
| 2900 | if (!prevPageContentFrame) { |
| 2901 | // The canvas is an inheriting anon box, so needs to be "owned" by the page |
| 2902 | // content. |
| 2903 | pageContentFrame->AddStateBits(NS_FRAME_OWNS_ANON_BOXES | |
| 2904 | NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 2905 | // Make it an absolute container for fixed-pos elements |
| 2906 | pageContentFrame->MarkAsAbsoluteContainingBlock(); |
| 2907 | } else { |
| 2908 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)" " (" "This bit should've been carried over from the previous continuation " "in nsIFrame::Init()." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2911); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)" ") (" "This bit should've been carried over from the previous continuation " "in nsIFrame::Init()." ")"); do { MOZ_CrashSequence(__null, 2911 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 2909 | pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN),do { static_assert( mozilla::detail::AssertionConditionType< decltype(pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)" " (" "This bit should've been carried over from the previous continuation " "in nsIFrame::Init()." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2911); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)" ") (" "This bit should've been carried over from the previous continuation " "in nsIFrame::Init()." ")"); do { MOZ_CrashSequence(__null, 2911 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 2910 | "This bit should've been carried over from the previous continuation "do { static_assert( mozilla::detail::AssertionConditionType< decltype(pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)" " (" "This bit should've been carried over from the previous continuation " "in nsIFrame::Init()." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2911); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)" ") (" "This bit should've been carried over from the previous continuation " "in nsIFrame::Init()." ")"); do { MOZ_CrashSequence(__null, 2911 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 2911 | "in nsIFrame::Init().")do { static_assert( mozilla::detail::AssertionConditionType< decltype(pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)" " (" "This bit should've been carried over from the previous continuation " "in nsIFrame::Init()." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2911); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pageContentFrame->HasAllStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)" ") (" "This bit should've been carried over from the previous continuation " "in nsIFrame::Init()." ")"); do { MOZ_CrashSequence(__null, 2911 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 2912 | MOZ_ASSERT(pageContentFrame->GetAbsoluteContainingBlock(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(pageContentFrame->GetAbsoluteContainingBlock())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(pageContentFrame->GetAbsoluteContainingBlock()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("pageContentFrame->GetAbsoluteContainingBlock()" " (" "nsIFrame::Init() should've constructed AbsoluteContainingBlock " "for continuations!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2914); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pageContentFrame->GetAbsoluteContainingBlock()" ") (" "nsIFrame::Init() should've constructed AbsoluteContainingBlock " "for continuations!" ")"); do { MOZ_CrashSequence(__null, 2914 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 2913 | "nsIFrame::Init() should've constructed AbsoluteContainingBlock "do { static_assert( mozilla::detail::AssertionConditionType< decltype(pageContentFrame->GetAbsoluteContainingBlock())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(pageContentFrame->GetAbsoluteContainingBlock()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("pageContentFrame->GetAbsoluteContainingBlock()" " (" "nsIFrame::Init() should've constructed AbsoluteContainingBlock " "for continuations!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2914); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pageContentFrame->GetAbsoluteContainingBlock()" ") (" "nsIFrame::Init() should've constructed AbsoluteContainingBlock " "for continuations!" ")"); do { MOZ_CrashSequence(__null, 2914 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 2914 | "for continuations!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(pageContentFrame->GetAbsoluteContainingBlock())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(pageContentFrame->GetAbsoluteContainingBlock()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("pageContentFrame->GetAbsoluteContainingBlock()" " (" "nsIFrame::Init() should've constructed AbsoluteContainingBlock " "for continuations!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2914); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pageContentFrame->GetAbsoluteContainingBlock()" ") (" "nsIFrame::Init() should've constructed AbsoluteContainingBlock " "for continuations!" ")"); do { MOZ_CrashSequence(__null, 2914 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 2915 | } |
| 2916 | SetInitialSingleChild(pageFrame, pageContentFrame); |
| 2917 | |
| 2918 | RefPtr<ComputedStyle> canvasPseudoStyle = |
| 2919 | styleSet->ResolveNonInheritingAnonymousBoxStyle( |
| 2920 | PseudoStyleType::MozCanvas); |
| 2921 | aCanvasFrame = NS_NewCanvasFrame(aPresShell, canvasPseudoStyle); |
| 2922 | |
| 2923 | nsIFrame* prevCanvasFrame = nullptr; |
| 2924 | if (prevPageContentFrame) { |
| 2925 | prevCanvasFrame = prevPageContentFrame->PrincipalChildList().FirstChild(); |
| 2926 | NS_ASSERTION(prevCanvasFrame, "missing canvas frame")do { if (!(prevCanvasFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "missing canvas frame", "prevCanvasFrame", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2926); MOZ_PretendNoReturn(); } } while (0); |
| 2927 | } |
| 2928 | aCanvasFrame->Init(nullptr, pageContentFrame, prevCanvasFrame); |
| 2929 | SetInitialSingleChild(pageContentFrame, aCanvasFrame); |
| 2930 | return pageFrame; |
| 2931 | } |
| 2932 | |
| 2933 | /* static */ |
| 2934 | nsIFrame* nsCSSFrameConstructor::CreatePlaceholderFrameFor( |
| 2935 | PresShell* aPresShell, nsIContent* aContent, nsIFrame* aFrame, |
| 2936 | nsContainerFrame* aParentFrame, nsIFrame* aPrevInFlow, |
| 2937 | nsFrameState aTypeBit) { |
| 2938 | RefPtr<ComputedStyle> placeholderStyle = |
| 2939 | aPresShell->StyleSet()->ResolveStyleForPlaceholder(); |
| 2940 | |
| 2941 | // The placeholder frame gets a pseudo style. |
| 2942 | nsPlaceholderFrame* placeholderFrame = |
| 2943 | NS_NewPlaceholderFrame(aPresShell, placeholderStyle, aTypeBit); |
| 2944 | |
| 2945 | placeholderFrame->Init(aContent, aParentFrame, aPrevInFlow); |
| 2946 | |
| 2947 | // Associate the placeholder/out-of-flow with each other. |
| 2948 | placeholderFrame->SetOutOfFlowFrame(aFrame); |
| 2949 | aFrame->SetProperty(nsIFrame::PlaceholderFrameProperty(), placeholderFrame); |
| 2950 | |
| 2951 | aFrame->AddStateBits(NS_FRAME_OUT_OF_FLOW); |
| 2952 | |
| 2953 | return placeholderFrame; |
| 2954 | } |
| 2955 | |
| 2956 | // Clears any lazy bits set in the range [aStartContent, aEndContent). If |
| 2957 | // aEndContent is null, that means to clear bits in all siblings starting with |
| 2958 | // aStartContent. aStartContent must not be null unless aEndContent is also |
| 2959 | // null. We do this so that when new children are inserted under elements whose |
| 2960 | // frame is a leaf the new children don't cause us to try to construct frames |
| 2961 | // for the existing children again. |
| 2962 | static inline void ClearLazyBits(nsIContent* aStartContent, |
| 2963 | nsIContent* aEndContent) { |
| 2964 | MOZ_ASSERT(aStartContent || !aEndContent,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStartContent || !aEndContent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStartContent || !aEndContent ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aStartContent || !aEndContent" " (" "Must have start child if we have an end child" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 2965 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStartContent || !aEndContent" ") (" "Must have start child if we have an end child" ")"); do { MOZ_CrashSequence(__null, 2965); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 2965 | "Must have start child if we have an end child")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStartContent || !aEndContent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStartContent || !aEndContent ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aStartContent || !aEndContent" " (" "Must have start child if we have an end child" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 2965 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStartContent || !aEndContent" ") (" "Must have start child if we have an end child" ")"); do { MOZ_CrashSequence(__null, 2965); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 2966 | |
| 2967 | for (nsIContent* cur = aStartContent; cur != aEndContent; |
| 2968 | cur = cur->GetNextSibling()) { |
| 2969 | cur->UnsetFlags(NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME); |
| 2970 | } |
| 2971 | } |
| 2972 | |
| 2973 | /* static */ |
| 2974 | const nsCSSFrameConstructor::FrameConstructionData* |
| 2975 | nsCSSFrameConstructor::FindSelectData(const Element& aElement, |
| 2976 | ComputedStyle& aStyle) { |
| 2977 | // Construct a frame-based listbox or combobox |
| 2978 | const auto* sel = dom::HTMLSelectElement::FromNode(aElement); |
| 2979 | MOZ_ASSERT(sel)do { static_assert( mozilla::detail::AssertionConditionType< decltype(sel)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(sel))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("sel", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 2979); AnnotateMozCrashReason("MOZ_ASSERT" "(" "sel" ")"); do { MOZ_CrashSequence(__null, 2979); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 2980 | switch (aStyle.StyleDisplay()->EffectiveAppearance()) { |
| 2981 | case StyleAppearance::Base: |
| 2982 | case StyleAppearance::BaseSelect: |
| 2983 | return nullptr; |
| 2984 | default: |
| 2985 | break; |
| 2986 | } |
| 2987 | if (sel->IsCombobox()) { |
| 2988 | static constexpr FrameConstructionData sComboboxData{ |
| 2989 | ToCreationFunc(NS_NewComboboxControlFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewComboboxControlFrame(aPs, aStyle); }}; |
| 2990 | return &sComboboxData; |
| 2991 | } |
| 2992 | // FIXME: Can we simplify this to avoid needing ConstructListboxSelectFrame, |
| 2993 | // and reuse ConstructScrollableBlock or so? |
| 2994 | static constexpr FrameConstructionData sListBoxData{ |
| 2995 | &nsCSSFrameConstructor::ConstructListBoxSelectFrame}; |
| 2996 | return &sListBoxData; |
| 2997 | } |
| 2998 | |
| 2999 | nsIFrame* nsCSSFrameConstructor::ConstructListBoxSelectFrame( |
| 3000 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 3001 | nsContainerFrame* aParentFrame, const nsStyleDisplay* aStyleDisplay, |
| 3002 | nsFrameList& aFrameList) { |
| 3003 | nsContainerFrame* listFrame = |
| 3004 | NS_NewListControlFrame(mPresShell, aItem.mComputedStyle); |
| 3005 | InitAndRestoreFrame(aState, aItem.mContent, |
| 3006 | aState.GetGeometricParent(*aStyleDisplay, aParentFrame), |
| 3007 | listFrame); |
| 3008 | ConstructScrollableBlockWithScrollContainer( |
| 3009 | aState, aItem, aParentFrame, aStyleDisplay, aFrameList, listFrame); |
| 3010 | return listFrame; |
| 3011 | } |
| 3012 | |
| 3013 | nsIFrame* nsCSSFrameConstructor::ConstructTextControl( |
| 3014 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 3015 | nsContainerFrame* aParentFrame, const nsStyleDisplay* aStyleDisplay, |
| 3016 | nsFrameList& aFrameList) { |
| 3017 | nsContainerFrame* tcf = |
| 3018 | NS_NewTextControlFrame(mPresShell, aItem.mComputedStyle); |
| 3019 | InitAndRestoreFrame(aState, aItem.mContent, |
| 3020 | aState.GetGeometricParent(*aStyleDisplay, aParentFrame), |
| 3021 | tcf); |
| 3022 | ConstructScrollableBlockWithScrollContainer(aState, aItem, aParentFrame, |
| 3023 | aStyleDisplay, aFrameList, tcf); |
| 3024 | return tcf; |
| 3025 | } |
| 3026 | |
| 3027 | nsIFrame* nsCSSFrameConstructor::ConstructFieldSetFrame( |
| 3028 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 3029 | nsContainerFrame* aParentFrame, const nsStyleDisplay* aStyleDisplay, |
| 3030 | nsFrameList& aFrameList) { |
| 3031 | AutoRestore<bool> savedHasRenderedLegend(aState.mHasRenderedLegend); |
| 3032 | aState.mHasRenderedLegend = false; |
| 3033 | nsIContent* const content = aItem.mContent; |
| 3034 | ComputedStyle* const computedStyle = aItem.mComputedStyle; |
| 3035 | |
| 3036 | nsContainerFrame* fieldsetFrame = |
| 3037 | NS_NewFieldSetFrame(mPresShell, computedStyle); |
| 3038 | |
| 3039 | // Initialize it |
| 3040 | InitAndRestoreFrame(aState, content, |
| 3041 | aState.GetGeometricParent(*aStyleDisplay, aParentFrame), |
| 3042 | fieldsetFrame); |
| 3043 | |
| 3044 | fieldsetFrame->AddStateBits(NS_FRAME_OWNS_ANON_BOXES); |
| 3045 | |
| 3046 | // Resolve style and initialize the frame |
| 3047 | RefPtr<ComputedStyle> fieldsetContentStyle = |
| 3048 | mPresShell->StyleSet()->ResolveInheritingAnonymousBoxStyle( |
| 3049 | PseudoStyleType::MozFieldsetContent, computedStyle); |
| 3050 | |
| 3051 | const nsStyleDisplay* fieldsetContentDisplay = |
| 3052 | fieldsetContentStyle->StyleDisplay(); |
| 3053 | const bool isScrollable = fieldsetContentDisplay->IsScrollableOverflow(); |
| 3054 | nsContainerFrame* scrollFrame = nullptr; |
| 3055 | if (isScrollable) { |
| 3056 | fieldsetContentStyle = |
| 3057 | BeginBuildingScrollContainerFrame(aState, content, fieldsetContentStyle, |
| 3058 | fieldsetFrame, false, scrollFrame); |
| 3059 | } |
| 3060 | |
| 3061 | // Create the inner ::-moz-fieldset-content frame. |
| 3062 | nsContainerFrame* contentFrameTop; |
| 3063 | nsContainerFrame* contentFrame; |
| 3064 | auto* parent = scrollFrame ? scrollFrame : fieldsetFrame; |
| 3065 | MOZ_ASSERT(fieldsetContentDisplay->DisplayOutside() ==do { static_assert( mozilla::detail::AssertionConditionType< decltype(fieldsetContentDisplay->DisplayOutside() == StyleDisplayOutside ::Block)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(fieldsetContentDisplay->DisplayOutside() == StyleDisplayOutside ::Block))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("fieldsetContentDisplay->DisplayOutside() == StyleDisplayOutside::Block" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3066); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "fieldsetContentDisplay->DisplayOutside() == StyleDisplayOutside::Block" ")"); do { MOZ_CrashSequence(__null, 3066); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 3066 | StyleDisplayOutside::Block)do { static_assert( mozilla::detail::AssertionConditionType< decltype(fieldsetContentDisplay->DisplayOutside() == StyleDisplayOutside ::Block)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(fieldsetContentDisplay->DisplayOutside() == StyleDisplayOutside ::Block))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("fieldsetContentDisplay->DisplayOutside() == StyleDisplayOutside::Block" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3066); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "fieldsetContentDisplay->DisplayOutside() == StyleDisplayOutside::Block" ")"); do { MOZ_CrashSequence(__null, 3066); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3067 | switch (fieldsetContentDisplay->DisplayInside()) { |
| 3068 | case StyleDisplayInside::Flex: |
| 3069 | contentFrame = NS_NewFlexContainerFrame(mPresShell, fieldsetContentStyle); |
| 3070 | InitAndRestoreFrame(aState, content, parent, contentFrame); |
| 3071 | contentFrameTop = contentFrame; |
| 3072 | break; |
| 3073 | case StyleDisplayInside::Grid: |
| 3074 | contentFrame = NS_NewGridContainerFrame(mPresShell, fieldsetContentStyle); |
| 3075 | InitAndRestoreFrame(aState, content, parent, contentFrame); |
| 3076 | contentFrameTop = contentFrame; |
| 3077 | break; |
| 3078 | default: { |
| 3079 | MOZ_ASSERT(fieldsetContentDisplay->mDisplay == StyleDisplay::Block,do { static_assert( mozilla::detail::AssertionConditionType< decltype(fieldsetContentDisplay->mDisplay == StyleDisplay:: Block)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(fieldsetContentDisplay->mDisplay == StyleDisplay:: Block))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("fieldsetContentDisplay->mDisplay == StyleDisplay::Block" " (" "bug in StyleAdjuster::adjust_for_fieldset_content?" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3080); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "fieldsetContentDisplay->mDisplay == StyleDisplay::Block" ") (" "bug in StyleAdjuster::adjust_for_fieldset_content?" ")" ); do { MOZ_CrashSequence(__null, 3080); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 3080 | "bug in StyleAdjuster::adjust_for_fieldset_content?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(fieldsetContentDisplay->mDisplay == StyleDisplay:: Block)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(fieldsetContentDisplay->mDisplay == StyleDisplay:: Block))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("fieldsetContentDisplay->mDisplay == StyleDisplay::Block" " (" "bug in StyleAdjuster::adjust_for_fieldset_content?" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3080); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "fieldsetContentDisplay->mDisplay == StyleDisplay::Block" ") (" "bug in StyleAdjuster::adjust_for_fieldset_content?" ")" ); do { MOZ_CrashSequence(__null, 3080); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3081 | |
| 3082 | contentFrame = NS_NewBlockFrame(mPresShell, fieldsetContentStyle); |
| 3083 | if (fieldsetContentStyle->StyleColumn()->IsColumnContainerStyle()) { |
| 3084 | contentFrameTop = BeginBuildingColumns( |
| 3085 | aState, content, parent, contentFrame, fieldsetContentStyle); |
| 3086 | } else { |
| 3087 | // No need to create column container. Initialize content frame. |
| 3088 | InitAndRestoreFrame(aState, content, parent, contentFrame); |
| 3089 | contentFrameTop = contentFrame; |
| 3090 | } |
| 3091 | |
| 3092 | break; |
| 3093 | } |
| 3094 | } |
| 3095 | |
| 3096 | aState.AddChild(fieldsetFrame, aFrameList, content, aParentFrame); |
| 3097 | |
| 3098 | // Process children |
| 3099 | nsFrameConstructorSaveState absoluteSaveState; |
| 3100 | nsFrameList childList; |
| 3101 | |
| 3102 | contentFrameTop->AddStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 3103 | if (fieldsetFrame->IsAbsPosContainingBlock()) { |
| 3104 | aState.PushAbsoluteContainingBlock(contentFrameTop, fieldsetFrame, |
| 3105 | absoluteSaveState); |
| 3106 | } |
| 3107 | |
| 3108 | nsFrameConstructorSaveState floatSaveState; |
| 3109 | aState.MaybePushFloatContainingBlock(contentFrame, floatSaveState); |
| 3110 | |
| 3111 | ProcessChildren(aState, content, computedStyle, contentFrame, true, childList, |
| 3112 | true); |
| 3113 | nsFrameList fieldsetKids; |
| 3114 | fieldsetKids.AppendFrame(nullptr, |
| 3115 | scrollFrame ? scrollFrame : contentFrameTop); |
| 3116 | |
| 3117 | if (!MayNeedToCreateColumnSpanSiblings(contentFrame, childList)) { |
| 3118 | // Set the inner frame's initial child lists. |
| 3119 | contentFrame->SetInitialChildList(FrameChildListID::Principal, |
| 3120 | std::move(childList)); |
| 3121 | } else { |
| 3122 | // Extract any initial non-column-span kids, and put them in inner frame's |
| 3123 | // child list. |
| 3124 | nsFrameList initialNonColumnSpanKids = |
| 3125 | childList.Split([](nsIFrame* f) { return f->IsColumnSpan(); }); |
| 3126 | contentFrame->SetInitialChildList(FrameChildListID::Principal, |
| 3127 | std::move(initialNonColumnSpanKids)); |
| 3128 | |
| 3129 | if (childList.NotEmpty()) { |
| 3130 | nsFrameList columnSpanSiblings = CreateColumnSpanSiblings( |
| 3131 | aState, contentFrame, childList, |
| 3132 | // Column content should never be a absolute/fixed positioned |
| 3133 | // containing block. Pass nullptr as aPositionedFrame. |
| 3134 | nullptr); |
| 3135 | FinishBuildingColumns(aState, contentFrameTop, contentFrame, |
| 3136 | columnSpanSiblings); |
| 3137 | } |
| 3138 | } |
| 3139 | |
| 3140 | if (isScrollable) { |
| 3141 | FinishBuildingScrollContainerFrame(scrollFrame, contentFrameTop); |
| 3142 | } |
| 3143 | |
| 3144 | // We use AppendFrames here because the rendered legend will already |
| 3145 | // be present in the principal child list if it exists. |
| 3146 | fieldsetFrame->AppendFrames(FrameChildListID::NoReflowPrincipal, |
| 3147 | std::move(fieldsetKids)); |
| 3148 | |
| 3149 | return fieldsetFrame; |
| 3150 | } |
| 3151 | |
| 3152 | const nsCSSFrameConstructor::FrameConstructionData* |
| 3153 | nsCSSFrameConstructor::FindDetailsData(const Element& aElement, |
| 3154 | ComputedStyle& aStyle) { |
| 3155 | if (!StaticPrefs::layout_details_force_block_layout()) { |
| 3156 | return nullptr; |
| 3157 | } |
| 3158 | static constexpr FrameConstructionData sBlockData[2] = { |
| 3159 | {&nsCSSFrameConstructor::ConstructNonScrollableBlock}, |
| 3160 | {&nsCSSFrameConstructor::ConstructScrollableBlock}, |
| 3161 | }; |
| 3162 | return &sBlockData[aStyle.StyleDisplay()->IsScrollableOverflow()]; |
| 3163 | } |
| 3164 | |
| 3165 | nsIFrame* nsCSSFrameConstructor::ConstructBlockRubyFrame( |
| 3166 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 3167 | nsContainerFrame* aParentFrame, const nsStyleDisplay* aStyleDisplay, |
| 3168 | nsFrameList& aFrameList) { |
| 3169 | nsIContent* const content = aItem.mContent; |
| 3170 | ComputedStyle* const computedStyle = aItem.mComputedStyle; |
| 3171 | |
| 3172 | nsBlockFrame* blockFrame = NS_NewBlockFrame(mPresShell, computedStyle); |
| 3173 | nsContainerFrame* newFrame = blockFrame; |
| 3174 | nsContainerFrame* geometricParent = |
| 3175 | aState.GetGeometricParent(*aStyleDisplay, aParentFrame); |
| 3176 | AutoFrameConstructionPageName pageNameTracker(aState, blockFrame); |
| 3177 | if ((aItem.mFCData->mBits & FCDATA_MAY_NEED_SCROLLFRAME0x80) && |
| 3178 | aStyleDisplay->IsScrollableOverflow()) { |
| 3179 | nsContainerFrame* scrollframe = nullptr; |
| 3180 | BuildScrollContainerFrame(aState, content, computedStyle, blockFrame, |
| 3181 | geometricParent, scrollframe); |
| 3182 | newFrame = scrollframe; |
| 3183 | } else { |
| 3184 | InitAndRestoreFrame(aState, content, geometricParent, blockFrame); |
| 3185 | } |
| 3186 | |
| 3187 | RefPtr<ComputedStyle> rubyStyle = |
| 3188 | mPresShell->StyleSet()->ResolveInheritingAnonymousBoxStyle( |
| 3189 | PseudoStyleType::MozBlockRubyContent, computedStyle); |
| 3190 | nsContainerFrame* rubyFrame = NS_NewRubyFrame(mPresShell, rubyStyle); |
| 3191 | InitAndRestoreFrame(aState, content, blockFrame, rubyFrame); |
| 3192 | SetInitialSingleChild(blockFrame, rubyFrame); |
| 3193 | blockFrame->AddStateBits(NS_FRAME_OWNS_ANON_BOXES); |
| 3194 | |
| 3195 | aState.AddChild(newFrame, aFrameList, content, aParentFrame); |
| 3196 | |
| 3197 | if (!mRootElementFrame) { |
| 3198 | mRootElementFrame = newFrame; |
| 3199 | } |
| 3200 | |
| 3201 | nsFrameConstructorSaveState absoluteSaveState; |
| 3202 | blockFrame->AddStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 3203 | if (newFrame->IsAbsPosContainingBlock()) { |
| 3204 | aState.PushAbsoluteContainingBlock(blockFrame, blockFrame, |
| 3205 | absoluteSaveState); |
| 3206 | } |
| 3207 | nsFrameConstructorSaveState floatSaveState; |
| 3208 | aState.MaybePushFloatContainingBlock(blockFrame, floatSaveState); |
| 3209 | |
| 3210 | nsFrameList childList; |
| 3211 | ProcessChildren(aState, content, rubyStyle, rubyFrame, true, childList, false, |
| 3212 | nullptr); |
| 3213 | rubyFrame->SetInitialChildList(FrameChildListID::Principal, |
| 3214 | std::move(childList)); |
| 3215 | |
| 3216 | return newFrame; |
| 3217 | } |
| 3218 | |
| 3219 | static nsIFrame* FindAncestorWithGeneratedContentPseudo(nsIFrame* aFrame) { |
| 3220 | for (nsIFrame* f = aFrame->GetParent(); f; f = f->GetParent()) { |
| 3221 | NS_ASSERTION(f->IsGeneratedContentFrame(),do { if (!(f->IsGeneratedContentFrame())) { NS_DebugBreak( NS_DEBUG_ASSERTION, "should not have exited generated content" , "f->IsGeneratedContentFrame()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 3222); MOZ_PretendNoReturn(); } } while (0) |
| 3222 | "should not have exited generated content")do { if (!(f->IsGeneratedContentFrame())) { NS_DebugBreak( NS_DEBUG_ASSERTION, "should not have exited generated content" , "f->IsGeneratedContentFrame()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 3222); MOZ_PretendNoReturn(); } } while (0); |
| 3223 | auto pseudo = f->Style()->GetPseudoType(); |
| 3224 | if (pseudo == PseudoStyleType::Before || pseudo == PseudoStyleType::After || |
| 3225 | pseudo == PseudoStyleType::Marker || |
| 3226 | pseudo == PseudoStyleType::Backdrop || |
| 3227 | pseudo == PseudoStyleType::Checkmark || |
| 3228 | pseudo == PseudoStyleType::PickerIcon) { |
| 3229 | return f; |
| 3230 | } |
| 3231 | } |
| 3232 | return nullptr; |
| 3233 | } |
| 3234 | |
| 3235 | /* static */ |
| 3236 | const nsCSSFrameConstructor::FrameConstructionData* |
| 3237 | nsCSSFrameConstructor::FindTextData(const Text& aTextContent, |
| 3238 | nsIFrame* aParentFrame) { |
| 3239 | if (aParentFrame && IsFrameForSVG(aParentFrame)) { |
| 3240 | if (!aParentFrame->IsInSVGTextSubtree()) { |
| 3241 | return nullptr; |
| 3242 | } |
| 3243 | |
| 3244 | // FIXME(bug 1588477) Don't render stuff in display: contents / Shadow DOM |
| 3245 | // subtrees, because TextCorrespondenceRecorder in the SVG text code doesn't |
| 3246 | // really know how to deal with it. This kinda sucks. :( |
| 3247 | if (aParentFrame->GetContent() != aTextContent.GetParent()) { |
| 3248 | return nullptr; |
| 3249 | } |
| 3250 | |
| 3251 | static constexpr FrameConstructionData sSVGTextData( |
| 3252 | NS_NewTextFrame, FCDATA_IS_LINE_PARTICIPANT0x2000 | FCDATA_IS_SVG_TEXT0x80000); |
| 3253 | return &sSVGTextData; |
| 3254 | } |
| 3255 | |
| 3256 | static constexpr FrameConstructionData sTextData(NS_NewTextFrame, |
| 3257 | FCDATA_IS_LINE_PARTICIPANT0x2000); |
| 3258 | return &sTextData; |
| 3259 | } |
| 3260 | |
| 3261 | void nsCSSFrameConstructor::ConstructTextFrame( |
| 3262 | const FrameConstructionData* aData, nsFrameConstructorState& aState, |
| 3263 | nsIContent* aContent, nsContainerFrame* aParentFrame, |
| 3264 | ComputedStyle* aComputedStyle, nsFrameList& aFrameList) { |
| 3265 | MOZ_ASSERT(aData, "Must have frame construction data")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aData)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aData))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("aData" " (" "Must have frame construction data" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 3265 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aData" ") (" "Must have frame construction data" ")"); do { MOZ_CrashSequence(__null, 3265); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3266 | |
| 3267 | nsIFrame* newFrame = |
| 3268 | (*aData->mFunc.mCreationFunc)(mPresShell, aComputedStyle); |
| 3269 | |
| 3270 | InitAndRestoreFrame(aState, aContent, aParentFrame, newFrame); |
| 3271 | |
| 3272 | if (newFrame->IsGeneratedContentFrame()) { |
| 3273 | UniquePtr<nsGenConInitializer> initializer( |
| 3274 | static_cast<nsGenConInitializer*>( |
| 3275 | aContent->TakeProperty(nsGkAtoms::genConInitializerProperty))); |
| 3276 | if (initializer) { |
| 3277 | // All generated text has an element as its parent. |
| 3278 | auto* element = aContent->GetParent()->AsElement(); |
| 3279 | nsGenConList* list = nullptr; |
| 3280 | if (initializer->mCounterListName) { |
| 3281 | list = mContainStyleScopeManager.GetOrCreateCounterList( |
| 3282 | *element, initializer->mCounterListName); |
| 3283 | } else { |
| 3284 | list = mContainStyleScopeManager.QuoteListFor(*element); |
| 3285 | } |
| 3286 | if (initializer->mNode.release()->InitTextFrame( |
| 3287 | list, FindAncestorWithGeneratedContentPseudo(newFrame), |
| 3288 | newFrame)) { |
| 3289 | if (initializer->mCounterListName) { |
| 3290 | CountersDirty(); |
| 3291 | } else { |
| 3292 | QuotesDirty(); |
| 3293 | } |
| 3294 | } |
| 3295 | } |
| 3296 | } |
| 3297 | |
| 3298 | // Add the newly constructed frame to the flow |
| 3299 | aFrameList.AppendFrame(nullptr, newFrame); |
| 3300 | |
| 3301 | if (!aState.mCreatingExtraFrames || (aContent->IsInNativeAnonymousSubtree() && |
| 3302 | !aContent->GetPrimaryFrame())) { |
| 3303 | aContent->SetPrimaryFrame(newFrame); |
| 3304 | } |
| 3305 | } |
| 3306 | |
| 3307 | /* static */ |
| 3308 | const nsCSSFrameConstructor::FrameConstructionData* |
| 3309 | nsCSSFrameConstructor::FindDataByInt(int32_t aInt, const Element& aElement, |
| 3310 | ComputedStyle& aComputedStyle, |
| 3311 | const FrameConstructionDataByInt* aDataPtr, |
| 3312 | uint32_t aDataLength) { |
| 3313 | for (const FrameConstructionDataByInt *curData = aDataPtr, |
| 3314 | *endData = aDataPtr + aDataLength; |
| 3315 | curData != endData; ++curData) { |
| 3316 | if (curData->mInt == aInt) { |
| 3317 | const FrameConstructionData* data = &curData->mData; |
| 3318 | if (data->mBits & FCDATA_FUNC_IS_DATA_GETTER0x2) { |
| 3319 | return data->mFunc.mDataGetter(aElement, aComputedStyle); |
| 3320 | } |
| 3321 | |
| 3322 | return data; |
| 3323 | } |
| 3324 | } |
| 3325 | |
| 3326 | return nullptr; |
| 3327 | } |
| 3328 | |
| 3329 | /* static */ |
| 3330 | const nsCSSFrameConstructor::FrameConstructionData* |
| 3331 | nsCSSFrameConstructor::FindDataByTag(const Element& aElement, |
| 3332 | ComputedStyle& aStyle, |
| 3333 | const FrameConstructionDataByTag* aDataPtr, |
| 3334 | uint32_t aDataLength) { |
| 3335 | const nsAtom* tag = aElement.NodeInfo()->NameAtom(); |
| 3336 | for (const FrameConstructionDataByTag *curData = aDataPtr, |
| 3337 | *endData = aDataPtr + aDataLength; |
| 3338 | curData != endData; ++curData) { |
| 3339 | if (curData->mTag == tag) { |
| 3340 | const FrameConstructionData* data = &curData->mData; |
| 3341 | if (data->mBits & FCDATA_FUNC_IS_DATA_GETTER0x2) { |
| 3342 | return data->mFunc.mDataGetter(aElement, aStyle); |
| 3343 | } |
| 3344 | |
| 3345 | return data; |
| 3346 | } |
| 3347 | } |
| 3348 | |
| 3349 | return nullptr; |
| 3350 | } |
| 3351 | |
| 3352 | #define SUPPRESS_FCDATA()FrameConstructionData(nullptr, 0x40) FrameConstructionData(nullptr, FCDATA_SUPPRESS_FRAME0x40) |
| 3353 | #define SIMPLE_INT_CREATE(_int, _func){int32_t(_int), FrameConstructionData(_func)} \ |
| 3354 | {int32_t(_int), FrameConstructionData(_func)} |
| 3355 | #define SIMPLE_INT_CHAIN(_int, _func){int32_t(_int), FrameConstructionData(_func)} \ |
| 3356 | {int32_t(_int), FrameConstructionData(_func)} |
| 3357 | #define COMPLEX_INT_CREATE(_int, _func){int32_t(_int), FrameConstructionData(_func)} \ |
| 3358 | {int32_t(_int), FrameConstructionData(_func)} |
| 3359 | |
| 3360 | #define SIMPLE_TAG_CREATE(_tag, _func){nsGkAtoms::_tag, FrameConstructionData(_func)} \ |
| 3361 | {nsGkAtoms::_tag, FrameConstructionData(_func)} |
| 3362 | #define SIMPLE_TAG_CHAIN(_tag, _func){nsGkAtoms::_tag, FrameConstructionData(_func)} \ |
| 3363 | {nsGkAtoms::_tag, FrameConstructionData(_func)} |
| 3364 | #define COMPLEX_TAG_CREATE(_tag, _func){nsGkAtoms::_tag, FrameConstructionData(_func)} \ |
| 3365 | {nsGkAtoms::_tag, FrameConstructionData(_func)} |
| 3366 | |
| 3367 | static nsFieldSetFrame* GetFieldSetFrameFor(nsIFrame* aFrame) { |
| 3368 | auto pseudo = aFrame->Style()->GetPseudoType(); |
| 3369 | if (pseudo == PseudoStyleType::MozFieldsetContent || |
| 3370 | pseudo == PseudoStyleType::MozScrolledContent || |
| 3371 | pseudo == PseudoStyleType::MozColumnSet || |
| 3372 | pseudo == PseudoStyleType::MozColumnContent) { |
| 3373 | return GetFieldSetFrameFor(aFrame->GetParent()); |
| 3374 | } |
| 3375 | return do_QueryFrame(aFrame); |
| 3376 | } |
| 3377 | |
| 3378 | /* static */ |
| 3379 | const nsCSSFrameConstructor::FrameConstructionData* |
| 3380 | nsCSSFrameConstructor::FindHTMLData(const Element& aElement, |
| 3381 | nsIFrame* aParentFrame, |
| 3382 | ComputedStyle& aStyle) { |
| 3383 | MOZ_ASSERT(aElement.IsHTMLElement())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aElement.IsHTMLElement())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aElement.IsHTMLElement()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aElement.IsHTMLElement()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3383); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aElement.IsHTMLElement()" ")"); do { MOZ_CrashSequence (__null, 3383); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 3384 | NS_ASSERTION(!aParentFrame ||do { if (!(!aParentFrame || aParentFrame->Style()->GetPseudoType () != PseudoStyleType::MozFieldsetContent || aParentFrame-> GetParent()->IsFieldSetFrame())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Unexpected parent for fieldset content anon box", "!aParentFrame || aParentFrame->Style()->GetPseudoType() != PseudoStyleType::MozFieldsetContent || aParentFrame->GetParent()->IsFieldSetFrame()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3388); MOZ_PretendNoReturn (); } } while (0) |
| 3385 | aParentFrame->Style()->GetPseudoType() !=do { if (!(!aParentFrame || aParentFrame->Style()->GetPseudoType () != PseudoStyleType::MozFieldsetContent || aParentFrame-> GetParent()->IsFieldSetFrame())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Unexpected parent for fieldset content anon box", "!aParentFrame || aParentFrame->Style()->GetPseudoType() != PseudoStyleType::MozFieldsetContent || aParentFrame->GetParent()->IsFieldSetFrame()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3388); MOZ_PretendNoReturn (); } } while (0) |
| 3386 | PseudoStyleType::MozFieldsetContent ||do { if (!(!aParentFrame || aParentFrame->Style()->GetPseudoType () != PseudoStyleType::MozFieldsetContent || aParentFrame-> GetParent()->IsFieldSetFrame())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Unexpected parent for fieldset content anon box", "!aParentFrame || aParentFrame->Style()->GetPseudoType() != PseudoStyleType::MozFieldsetContent || aParentFrame->GetParent()->IsFieldSetFrame()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3388); MOZ_PretendNoReturn (); } } while (0) |
| 3387 | aParentFrame->GetParent()->IsFieldSetFrame(),do { if (!(!aParentFrame || aParentFrame->Style()->GetPseudoType () != PseudoStyleType::MozFieldsetContent || aParentFrame-> GetParent()->IsFieldSetFrame())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Unexpected parent for fieldset content anon box", "!aParentFrame || aParentFrame->Style()->GetPseudoType() != PseudoStyleType::MozFieldsetContent || aParentFrame->GetParent()->IsFieldSetFrame()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3388); MOZ_PretendNoReturn (); } } while (0) |
| 3388 | "Unexpected parent for fieldset content anon box")do { if (!(!aParentFrame || aParentFrame->Style()->GetPseudoType () != PseudoStyleType::MozFieldsetContent || aParentFrame-> GetParent()->IsFieldSetFrame())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Unexpected parent for fieldset content anon box", "!aParentFrame || aParentFrame->Style()->GetPseudoType() != PseudoStyleType::MozFieldsetContent || aParentFrame->GetParent()->IsFieldSetFrame()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3388); MOZ_PretendNoReturn (); } } while (0); |
| 3389 | |
| 3390 | switch (aStyle.GetPseudoType()) { |
| 3391 | case PseudoStyleType::ViewTransitionOld: |
| 3392 | case PseudoStyleType::ViewTransitionNew: { |
| 3393 | static constexpr FrameConstructionData sViewTransitionData( |
| 3394 | NS_NewImageFrameForViewTransition); |
| 3395 | return &sViewTransitionData; |
| 3396 | } |
| 3397 | case PseudoStyleType::MozSelectContent: { |
| 3398 | if (aParentFrame && aParentFrame->IsComboboxControlFrame()) { |
| 3399 | static constexpr FrameConstructionData sComboboxLabelData( |
| 3400 | NS_NewComboboxLabelFrame); |
| 3401 | return &sComboboxLabelData; |
| 3402 | } |
| 3403 | break; |
| 3404 | } |
| 3405 | case PseudoStyleType::MozFileContent: { |
| 3406 | if (aParentFrame && aParentFrame->IsFileControlFrame()) { |
| 3407 | static constexpr FrameConstructionData sFileLabelData( |
| 3408 | NS_NewFileControlLabelFrame); |
| 3409 | return &sFileLabelData; |
| 3410 | } |
| 3411 | break; |
| 3412 | } |
| 3413 | case PseudoStyleType::MozReveal: |
| 3414 | case PseudoStyleType::MozNumberSpinBox: { |
| 3415 | if (aParentFrame && aParentFrame->StyleDisplay()->EffectiveAppearance() == |
| 3416 | StyleAppearance::Textfield) { |
| 3417 | // Suppress button-box pseudo-elements with appearance: textfield. |
| 3418 | static constexpr FrameConstructionData sSuppressData = |
| 3419 | SUPPRESS_FCDATA()FrameConstructionData(nullptr, 0x40); |
| 3420 | return &sSuppressData; |
| 3421 | } |
| 3422 | break; |
| 3423 | } |
| 3424 | default: |
| 3425 | break; |
| 3426 | } |
| 3427 | |
| 3428 | static constexpr FrameConstructionDataByTag sHTMLData[] = { |
| 3429 | SIMPLE_TAG_CHAIN(img, nsCSSFrameConstructor::FindImgData){nsGkAtoms::img, FrameConstructionData(nsCSSFrameConstructor:: FindImgData)}, |
| 3430 | SIMPLE_TAG_CHAIN(mozgeneratedcontentimage,{nsGkAtoms::mozgeneratedcontentimage, FrameConstructionData(nsCSSFrameConstructor ::FindGeneratedImageData)} |
| 3431 | nsCSSFrameConstructor::FindGeneratedImageData){nsGkAtoms::mozgeneratedcontentimage, FrameConstructionData(nsCSSFrameConstructor ::FindGeneratedImageData)}, |
| 3432 | {nsGkAtoms::br, |
| 3433 | {NS_NewBRFrame, FCDATA_IS_LINE_PARTICIPANT0x2000 | FCDATA_IS_LINE_BREAK0x4000}}, |
| 3434 | SIMPLE_TAG_CREATE(wbr, NS_NewWBRFrame){nsGkAtoms::wbr, FrameConstructionData(NS_NewWBRFrame)}, |
| 3435 | SIMPLE_TAG_CHAIN(button, nsCSSFrameConstructor::FindHTMLButtonData){nsGkAtoms::button, FrameConstructionData(nsCSSFrameConstructor ::FindHTMLButtonData)}, |
| 3436 | SIMPLE_TAG_CHAIN(input, nsCSSFrameConstructor::FindInputData){nsGkAtoms::input, FrameConstructionData(nsCSSFrameConstructor ::FindInputData)}, |
| 3437 | SIMPLE_TAG_CREATE(textarea, &nsCSSFrameConstructor::ConstructTextControl){nsGkAtoms::textarea, FrameConstructionData(&nsCSSFrameConstructor ::ConstructTextControl)}, |
| 3438 | SIMPLE_TAG_CHAIN(select, nsCSSFrameConstructor::FindSelectData){nsGkAtoms::select, FrameConstructionData(nsCSSFrameConstructor ::FindSelectData)}, |
| 3439 | SIMPLE_TAG_CHAIN(object, nsCSSFrameConstructor::FindObjectData){nsGkAtoms::object, FrameConstructionData(nsCSSFrameConstructor ::FindObjectData)}, |
| 3440 | SIMPLE_TAG_CHAIN(embed, nsCSSFrameConstructor::FindObjectData){nsGkAtoms::embed, FrameConstructionData(nsCSSFrameConstructor ::FindObjectData)}, |
| 3441 | COMPLEX_TAG_CREATE(fieldset,{nsGkAtoms::fieldset, FrameConstructionData(&nsCSSFrameConstructor ::ConstructFieldSetFrame)} |
| 3442 | &nsCSSFrameConstructor::ConstructFieldSetFrame){nsGkAtoms::fieldset, FrameConstructionData(&nsCSSFrameConstructor ::ConstructFieldSetFrame)}, |
| 3443 | SIMPLE_TAG_CREATE(frameset, NS_NewHTMLFramesetFrame){nsGkAtoms::frameset, FrameConstructionData(NS_NewHTMLFramesetFrame )}, |
| 3444 | SIMPLE_TAG_CREATE(iframe, NS_NewSubDocumentFrame){nsGkAtoms::iframe, FrameConstructionData(NS_NewSubDocumentFrame )}, |
| 3445 | SIMPLE_TAG_CHAIN(canvas, nsCSSFrameConstructor::FindCanvasData){nsGkAtoms::canvas, FrameConstructionData(nsCSSFrameConstructor ::FindCanvasData)}, |
| 3446 | SIMPLE_TAG_CREATE(video, NS_NewHTMLVideoFrame){nsGkAtoms::video, FrameConstructionData(NS_NewHTMLVideoFrame )}, |
| 3447 | SIMPLE_TAG_CREATE(audio, NS_NewHTMLAudioFrame){nsGkAtoms::audio, FrameConstructionData(NS_NewHTMLAudioFrame )}, |
| 3448 | SIMPLE_TAG_CREATE(progress, NS_NewProgressFrame){nsGkAtoms::progress, FrameConstructionData(NS_NewProgressFrame )}, |
| 3449 | SIMPLE_TAG_CREATE(meter, NS_NewMeterFrame){nsGkAtoms::meter, FrameConstructionData(NS_NewMeterFrame)}, |
| 3450 | SIMPLE_TAG_CHAIN(details, nsCSSFrameConstructor::FindDetailsData){nsGkAtoms::details, FrameConstructionData(nsCSSFrameConstructor ::FindDetailsData)}, |
| 3451 | SIMPLE_TAG_CHAIN(label,{nsGkAtoms::label, FrameConstructionData(nsCSSFrameConstructor ::FindLabelOrDescriptionData)} |
| 3452 | nsCSSFrameConstructor::FindLabelOrDescriptionData){nsGkAtoms::label, FrameConstructionData(nsCSSFrameConstructor ::FindLabelOrDescriptionData)}, |
| 3453 | SIMPLE_TAG_CHAIN(area, SUPPRESS_FCDATA()){nsGkAtoms::area, FrameConstructionData(FrameConstructionData (nullptr, 0x40))}, |
| 3454 | }; |
| 3455 | |
| 3456 | return FindDataByTag(aElement, aStyle, sHTMLData, std::size(sHTMLData)); |
| 3457 | } |
| 3458 | |
| 3459 | /* static */ |
| 3460 | const nsCSSFrameConstructor::FrameConstructionData* |
| 3461 | nsCSSFrameConstructor::FindGeneratedImageData(const Element& aElement, |
| 3462 | ComputedStyle&) { |
| 3463 | if (!aElement.IsInNativeAnonymousSubtree()) { |
| 3464 | return nullptr; |
| 3465 | } |
| 3466 | |
| 3467 | auto& generatedContent = static_cast<const GeneratedImageContent&>(aElement); |
| 3468 | if (generatedContent.IsForListStyleImageMarker()) { |
| 3469 | static constexpr FrameConstructionData sImgData( |
| 3470 | NS_NewImageFrameForListStyleImage); |
| 3471 | return &sImgData; |
| 3472 | } |
| 3473 | |
| 3474 | static constexpr FrameConstructionData sImgData( |
| 3475 | NS_NewImageFrameForGeneratedContentIndex); |
| 3476 | return &sImgData; |
| 3477 | } |
| 3478 | |
| 3479 | const nsCSSFrameConstructor::FrameConstructionData* |
| 3480 | nsCSSFrameConstructor::FindHTMLButtonData(const Element&, |
| 3481 | ComputedStyle& aStyle) { |
| 3482 | // Buttons force a (maybe inline) block unless their display is flex or grid. |
| 3483 | // TODO(emilio): It'd be good to remove this restriction more broadly. |
| 3484 | // There are some tests that expect block baselines on e.g. a `display: table` |
| 3485 | // button, but seems like it would be doable. |
| 3486 | const auto* disp = aStyle.StyleDisplay(); |
| 3487 | const bool respectDisplay = [&] { |
| 3488 | if (disp->IsInlineFlow()) { |
| 3489 | // For compat, `display: inline` and co need to create an inline-block. |
| 3490 | return false; |
| 3491 | } |
| 3492 | switch (disp->DisplayInside()) { |
| 3493 | case StyleDisplayInside::Flex: |
| 3494 | case StyleDisplayInside::Grid: |
| 3495 | case StyleDisplayInside::FlowRoot: |
| 3496 | return true; |
| 3497 | default: |
| 3498 | return false; |
| 3499 | } |
| 3500 | }(); |
| 3501 | if (respectDisplay) { |
| 3502 | return nullptr; |
| 3503 | } |
| 3504 | static constexpr FrameConstructionData sBlockData[2] = { |
| 3505 | {&nsCSSFrameConstructor::ConstructNonScrollableBlock}, |
| 3506 | {&nsCSSFrameConstructor::ConstructScrollableBlock}, |
| 3507 | }; |
| 3508 | return &sBlockData[disp->IsScrollableOverflow()]; |
| 3509 | } |
| 3510 | |
| 3511 | /* static */ |
| 3512 | const nsCSSFrameConstructor::FrameConstructionData* |
| 3513 | nsCSSFrameConstructor::FindImgData(const Element& aElement, |
| 3514 | ComputedStyle& aStyle) { |
| 3515 | if (nsImageFrame::ImageFrameTypeFor(aElement, aStyle) != |
| 3516 | nsImageFrame::ImageFrameType::ForElementRequest) { |
| 3517 | // content: url gets handled by the generic code-path. |
| 3518 | return nullptr; |
| 3519 | } |
| 3520 | |
| 3521 | static constexpr FrameConstructionData sImgData(NS_NewImageFrame); |
| 3522 | return &sImgData; |
| 3523 | } |
| 3524 | |
| 3525 | /* static */ |
| 3526 | const nsCSSFrameConstructor::FrameConstructionData* |
| 3527 | nsCSSFrameConstructor::FindImgControlData(const Element& aElement, |
| 3528 | ComputedStyle& aStyle) { |
| 3529 | if (nsImageFrame::ImageFrameTypeFor(aElement, aStyle) != |
| 3530 | nsImageFrame::ImageFrameType::ForElementRequest) { |
| 3531 | return nullptr; |
| 3532 | } |
| 3533 | |
| 3534 | static constexpr FrameConstructionData sImgControlData( |
| 3535 | NS_NewImageControlFrame); |
| 3536 | return &sImgControlData; |
| 3537 | } |
| 3538 | |
| 3539 | /* static */ |
| 3540 | const nsCSSFrameConstructor::FrameConstructionData* |
| 3541 | nsCSSFrameConstructor::FindInputData(const Element& aElement, |
| 3542 | ComputedStyle& aStyle) { |
| 3543 | static constexpr FrameConstructionDataByInt sInputData[] = { |
| 3544 | SIMPLE_INT_CREATE(FormControlType::InputCheckbox,{int32_t(FormControlType::InputCheckbox), FrameConstructionData ([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewCheckboxRadioFrame(aPs, aStyle); })} |
| 3545 | ToCreationFunc(NS_NewCheckboxRadioFrame)){int32_t(FormControlType::InputCheckbox), FrameConstructionData ([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewCheckboxRadioFrame(aPs, aStyle); })}, |
| 3546 | SIMPLE_INT_CREATE(FormControlType::InputRadio,{int32_t(FormControlType::InputRadio), FrameConstructionData( [](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewCheckboxRadioFrame(aPs, aStyle); })} |
| 3547 | ToCreationFunc(NS_NewCheckboxRadioFrame)){int32_t(FormControlType::InputRadio), FrameConstructionData( [](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewCheckboxRadioFrame(aPs, aStyle); })}, |
| 3548 | SIMPLE_INT_CREATE(FormControlType::InputFile, NS_NewFileControlFrame){int32_t(FormControlType::InputFile), FrameConstructionData(NS_NewFileControlFrame )}, |
| 3549 | SIMPLE_INT_CHAIN(FormControlType::InputImage,{int32_t(FormControlType::InputImage), FrameConstructionData( nsCSSFrameConstructor::FindImgControlData)} |
| 3550 | nsCSSFrameConstructor::FindImgControlData){int32_t(FormControlType::InputImage), FrameConstructionData( nsCSSFrameConstructor::FindImgControlData)}, |
| 3551 | SIMPLE_INT_CREATE(FormControlType::InputEmail,{int32_t(FormControlType::InputEmail), FrameConstructionData( &nsCSSFrameConstructor::ConstructTextControl)} |
| 3552 | &nsCSSFrameConstructor::ConstructTextControl){int32_t(FormControlType::InputEmail), FrameConstructionData( &nsCSSFrameConstructor::ConstructTextControl)}, |
| 3553 | SIMPLE_INT_CREATE(FormControlType::InputText,{int32_t(FormControlType::InputText), FrameConstructionData(& nsCSSFrameConstructor::ConstructTextControl)} |
| 3554 | &nsCSSFrameConstructor::ConstructTextControl){int32_t(FormControlType::InputText), FrameConstructionData(& nsCSSFrameConstructor::ConstructTextControl)}, |
| 3555 | SIMPLE_INT_CREATE(FormControlType::InputTel,{int32_t(FormControlType::InputTel), FrameConstructionData(& nsCSSFrameConstructor::ConstructTextControl)} |
| 3556 | &nsCSSFrameConstructor::ConstructTextControl){int32_t(FormControlType::InputTel), FrameConstructionData(& nsCSSFrameConstructor::ConstructTextControl)}, |
| 3557 | SIMPLE_INT_CREATE(FormControlType::InputUrl,{int32_t(FormControlType::InputUrl), FrameConstructionData(& nsCSSFrameConstructor::ConstructTextControl)} |
| 3558 | &nsCSSFrameConstructor::ConstructTextControl){int32_t(FormControlType::InputUrl), FrameConstructionData(& nsCSSFrameConstructor::ConstructTextControl)}, |
| 3559 | SIMPLE_INT_CREATE(FormControlType::InputRange, NS_NewRangeFrame){int32_t(FormControlType::InputRange), FrameConstructionData( NS_NewRangeFrame)}, |
| 3560 | SIMPLE_INT_CREATE(FormControlType::InputPassword,{int32_t(FormControlType::InputPassword), FrameConstructionData (&nsCSSFrameConstructor::ConstructTextControl)} |
| 3561 | &nsCSSFrameConstructor::ConstructTextControl){int32_t(FormControlType::InputPassword), FrameConstructionData (&nsCSSFrameConstructor::ConstructTextControl)}, |
| 3562 | SIMPLE_INT_CREATE(FormControlType::InputColor, NS_NewColorControlFrame){int32_t(FormControlType::InputColor), FrameConstructionData( NS_NewColorControlFrame)}, |
| 3563 | SIMPLE_INT_CREATE(FormControlType::InputSearch,{int32_t(FormControlType::InputSearch), FrameConstructionData (&nsCSSFrameConstructor::ConstructTextControl)} |
| 3564 | &nsCSSFrameConstructor::ConstructTextControl){int32_t(FormControlType::InputSearch), FrameConstructionData (&nsCSSFrameConstructor::ConstructTextControl)}, |
| 3565 | SIMPLE_INT_CREATE(FormControlType::InputNumber,{int32_t(FormControlType::InputNumber), FrameConstructionData (&nsCSSFrameConstructor::ConstructTextControl)} |
| 3566 | &nsCSSFrameConstructor::ConstructTextControl){int32_t(FormControlType::InputNumber), FrameConstructionData (&nsCSSFrameConstructor::ConstructTextControl)}, |
| 3567 | SIMPLE_INT_CREATE(FormControlType::InputTime, NS_NewDateTimeControlFrame){int32_t(FormControlType::InputTime), FrameConstructionData(NS_NewDateTimeControlFrame )}, |
| 3568 | SIMPLE_INT_CREATE(FormControlType::InputDate, NS_NewDateTimeControlFrame){int32_t(FormControlType::InputDate), FrameConstructionData(NS_NewDateTimeControlFrame )}, |
| 3569 | SIMPLE_INT_CREATE(FormControlType::InputDatetimeLocal,{int32_t(FormControlType::InputDatetimeLocal), FrameConstructionData (NS_NewDateTimeControlFrame)} |
| 3570 | NS_NewDateTimeControlFrame){int32_t(FormControlType::InputDatetimeLocal), FrameConstructionData (NS_NewDateTimeControlFrame)}, |
| 3571 | // TODO: this is temporary until a frame is written: bug 888320 |
| 3572 | SIMPLE_INT_CREATE(FormControlType::InputMonth,{int32_t(FormControlType::InputMonth), FrameConstructionData( &nsCSSFrameConstructor::ConstructTextControl)} |
| 3573 | &nsCSSFrameConstructor::ConstructTextControl){int32_t(FormControlType::InputMonth), FrameConstructionData( &nsCSSFrameConstructor::ConstructTextControl)}, |
| 3574 | // TODO: this is temporary until a frame is written: bug 888320 |
| 3575 | SIMPLE_INT_CREATE(FormControlType::InputWeek,{int32_t(FormControlType::InputWeek), FrameConstructionData(& nsCSSFrameConstructor::ConstructTextControl)} |
| 3576 | &nsCSSFrameConstructor::ConstructTextControl){int32_t(FormControlType::InputWeek), FrameConstructionData(& nsCSSFrameConstructor::ConstructTextControl)}, |
| 3577 | SIMPLE_INT_CREATE(FormControlType::InputSubmit,{int32_t(FormControlType::InputSubmit), FrameConstructionData (NS_NewInputButtonControlFrame)} |
| 3578 | NS_NewInputButtonControlFrame){int32_t(FormControlType::InputSubmit), FrameConstructionData (NS_NewInputButtonControlFrame)}, |
| 3579 | SIMPLE_INT_CREATE(FormControlType::InputReset,{int32_t(FormControlType::InputReset), FrameConstructionData( NS_NewInputButtonControlFrame)} |
| 3580 | NS_NewInputButtonControlFrame){int32_t(FormControlType::InputReset), FrameConstructionData( NS_NewInputButtonControlFrame)}, |
| 3581 | SIMPLE_INT_CREATE(FormControlType::InputButton,{int32_t(FormControlType::InputButton), FrameConstructionData (NS_NewInputButtonControlFrame)} |
| 3582 | NS_NewInputButtonControlFrame){int32_t(FormControlType::InputButton), FrameConstructionData (NS_NewInputButtonControlFrame)}, |
| 3583 | // Keeping hidden inputs out of here on purpose for so they get frames by |
| 3584 | // display (in practice, none). |
| 3585 | }; |
| 3586 | |
| 3587 | auto controlType = HTMLInputElement::FromNode(aElement)->ControlType(); |
| 3588 | |
| 3589 | // radio and checkbox inputs with appearance:none should be constructed |
| 3590 | // by display type. (Note that we're not checking that appearance is |
| 3591 | // not (respectively) StyleAppearance::Radio and StyleAppearance::Checkbox.) |
| 3592 | if ((controlType == FormControlType::InputCheckbox || |
| 3593 | controlType == FormControlType::InputRadio) && |
| 3594 | !aStyle.StyleDisplay()->HasNativeAppearance()) { |
| 3595 | return nullptr; |
| 3596 | } |
| 3597 | |
| 3598 | return FindDataByInt(int32_t(controlType), aElement, aStyle, sInputData, |
| 3599 | std::size(sInputData)); |
| 3600 | } |
| 3601 | |
| 3602 | /* static */ |
| 3603 | const nsCSSFrameConstructor::FrameConstructionData* |
| 3604 | nsCSSFrameConstructor::FindObjectData(const Element& aElement, |
| 3605 | ComputedStyle& aStyle) { |
| 3606 | uint32_t type; |
| 3607 | nsCOMPtr<nsIObjectLoadingContent> objContent = |
| 3608 | do_QueryInterface(const_cast<Element*>(&aElement)); |
| 3609 | NS_ASSERTION(objContent,do { if (!(objContent)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "embed and object must implement " "nsIObjectLoadingContent!", "objContent", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 3611); MOZ_PretendNoReturn(); } } while (0) |
| 3610 | "embed and object must implement "do { if (!(objContent)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "embed and object must implement " "nsIObjectLoadingContent!", "objContent", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 3611); MOZ_PretendNoReturn(); } } while (0) |
| 3611 | "nsIObjectLoadingContent!")do { if (!(objContent)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "embed and object must implement " "nsIObjectLoadingContent!", "objContent", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 3611); MOZ_PretendNoReturn(); } } while (0); |
| 3612 | objContent->GetDisplayedType(&type); |
| 3613 | |
| 3614 | static constexpr FrameConstructionDataByInt sObjectData[] = { |
| 3615 | // TODO(emilio): Can we remove the NS_NewEmptyFrame case and just use a |
| 3616 | // subdocument frame here? |
| 3617 | SIMPLE_INT_CREATE(nsIObjectLoadingContent::TYPE_LOADING,{int32_t(nsIObjectLoadingContent::TYPE_LOADING), FrameConstructionData (NS_NewEmptyFrame)} |
| 3618 | NS_NewEmptyFrame){int32_t(nsIObjectLoadingContent::TYPE_LOADING), FrameConstructionData (NS_NewEmptyFrame)}, |
| 3619 | SIMPLE_INT_CREATE(nsIObjectLoadingContent::TYPE_DOCUMENT,{int32_t(nsIObjectLoadingContent::TYPE_DOCUMENT), FrameConstructionData (NS_NewSubDocumentFrame)} |
| 3620 | NS_NewSubDocumentFrame){int32_t(nsIObjectLoadingContent::TYPE_DOCUMENT), FrameConstructionData (NS_NewSubDocumentFrame)}, |
| 3621 | // Nothing for TYPE_FALLBACK so we'll construct frames by display there |
| 3622 | }; |
| 3623 | |
| 3624 | return FindDataByInt((int32_t)type, aElement, aStyle, sObjectData, |
| 3625 | std::size(sObjectData)); |
| 3626 | } |
| 3627 | |
| 3628 | /* static */ |
| 3629 | const nsCSSFrameConstructor::FrameConstructionData* |
| 3630 | nsCSSFrameConstructor::FindCanvasData(const Element& aElement, |
| 3631 | ComputedStyle& aStyle) { |
| 3632 | // We want to check whether script is enabled on the document that |
| 3633 | // could be painting to the canvas. That's the owner document of |
| 3634 | // the canvas, except when the owner document is a static document, |
| 3635 | // in which case it's the original document it was cloned from. |
| 3636 | Document* doc = aElement.OwnerDoc(); |
| 3637 | if (doc->IsStaticDocument()) { |
| 3638 | doc = doc->GetOriginalDocument(); |
| 3639 | } |
| 3640 | if (!doc->IsScriptEnabled()) { |
| 3641 | return nullptr; |
| 3642 | } |
| 3643 | |
| 3644 | static constexpr FrameConstructionData sCanvasData( |
| 3645 | NS_NewHTMLCanvasFrame, 0, PseudoStyleType::MozHtmlCanvasContent); |
| 3646 | return &sCanvasData; |
| 3647 | } |
| 3648 | |
| 3649 | static MOZ_NEVER_INLINE__attribute__((noinline)) void DestroyFramesInList(PresShell* aPs, |
| 3650 | nsFrameList& aList) { |
| 3651 | nsIFrame::DestroyContext context(aPs); |
| 3652 | aList.DestroyFrames(context); |
| 3653 | } |
| 3654 | |
| 3655 | void nsCSSFrameConstructor::ConstructFrameFromItemInternal( |
| 3656 | FrameConstructionItem& aItem, nsFrameConstructorState& aState, |
| 3657 | nsContainerFrame* aParentFrame, nsFrameList& aFrameList) { |
| 3658 | const FrameConstructionData* data = aItem.mFCData; |
| 3659 | NS_ASSERTION(data, "Must have frame construction data")do { if (!(data)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Must have frame construction data" , "data", "./../../../layout/base/nsCSSFrameConstructor.cpp", 3659); MOZ_PretendNoReturn(); } } while (0); |
| 3660 | |
| 3661 | uint32_t bits = data->mBits; |
| 3662 | |
| 3663 | NS_ASSERTION(!(bits & FCDATA_FUNC_IS_DATA_GETTER),do { if (!(!(bits & 0x2))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Should have dealt with this inside the data finder", "!(bits & FCDATA_FUNC_IS_DATA_GETTER)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3664); MOZ_PretendNoReturn (); } } while (0) |
| 3664 | "Should have dealt with this inside the data finder")do { if (!(!(bits & 0x2))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Should have dealt with this inside the data finder", "!(bits & FCDATA_FUNC_IS_DATA_GETTER)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3664); MOZ_PretendNoReturn (); } } while (0); |
| 3665 | |
| 3666 | // Some sets of bits are not compatible with each other |
| 3667 | #define CHECK_ONLY_ONE_BIT(_bit1, _bit2) \ |
| 3668 | NS_ASSERTION(!(bits & _bit1) || !(bits & _bit2), \do { if (!(!(bits & _bit1) || !(bits & _bit2))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Only one of these bits should be set", "!(bits & _bit1) || !(bits & _bit2)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3669); MOZ_PretendNoReturn (); } } while (0) |
| 3669 | "Only one of these bits should be set")do { if (!(!(bits & _bit1) || !(bits & _bit2))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Only one of these bits should be set", "!(bits & _bit1) || !(bits & _bit2)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3669); MOZ_PretendNoReturn (); } } while (0) |
| 3670 | CHECK_ONLY_ONE_BIT(FCDATA_FUNC_IS_FULL_CTOR0x4, |
| 3671 | FCDATA_FORCE_NULL_ABSPOS_CONTAINER0x10); |
| 3672 | CHECK_ONLY_ONE_BIT(FCDATA_FUNC_IS_FULL_CTOR0x4, FCDATA_WRAP_KIDS_IN_BLOCKS0x20); |
| 3673 | CHECK_ONLY_ONE_BIT(FCDATA_FUNC_IS_FULL_CTOR0x4, FCDATA_SKIP_ABSPOS_PUSH0x200); |
| 3674 | CHECK_ONLY_ONE_BIT(FCDATA_FUNC_IS_FULL_CTOR0x4, |
| 3675 | FCDATA_DISALLOW_GENERATED_CONTENT0x400); |
| 3676 | CHECK_ONLY_ONE_BIT(FCDATA_FUNC_IS_FULL_CTOR0x4, FCDATA_ALLOW_BLOCK_STYLES0x8000); |
| 3677 | CHECK_ONLY_ONE_BIT(FCDATA_FUNC_IS_FULL_CTOR0x4, |
| 3678 | FCDATA_CREATE_BLOCK_WRAPPER_FOR_ALL_KIDS0x40000); |
| 3679 | CHECK_ONLY_ONE_BIT(FCDATA_WRAP_KIDS_IN_BLOCKS0x20, |
| 3680 | FCDATA_CREATE_BLOCK_WRAPPER_FOR_ALL_KIDS0x40000); |
| 3681 | #undef CHECK_ONLY_ONE_BIT |
| 3682 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(bits & 0x400000) || (bits & 0x10000))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!(bits & 0x400000) || (bits & 0x10000)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("!(bits & 0x400000) || (bits & 0x10000)" " (" "Wrapper anon boxes should always have FCDATA_USE_CHILD_ITEMS" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 3684 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!(bits & 0x400000) || (bits & 0x10000)" ") (" "Wrapper anon boxes should always have FCDATA_USE_CHILD_ITEMS" ")"); do { MOZ_CrashSequence(__null, 3684); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 3683 | !(bits & FCDATA_IS_WRAPPER_ANON_BOX) || (bits & FCDATA_USE_CHILD_ITEMS),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(bits & 0x400000) || (bits & 0x10000))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!(bits & 0x400000) || (bits & 0x10000)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("!(bits & 0x400000) || (bits & 0x10000)" " (" "Wrapper anon boxes should always have FCDATA_USE_CHILD_ITEMS" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 3684 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!(bits & 0x400000) || (bits & 0x10000)" ") (" "Wrapper anon boxes should always have FCDATA_USE_CHILD_ITEMS" ")"); do { MOZ_CrashSequence(__null, 3684); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 3684 | "Wrapper anon boxes should always have FCDATA_USE_CHILD_ITEMS")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(bits & 0x400000) || (bits & 0x10000))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!(bits & 0x400000) || (bits & 0x10000)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("!(bits & 0x400000) || (bits & 0x10000)" " (" "Wrapper anon boxes should always have FCDATA_USE_CHILD_ITEMS" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 3684 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!(bits & 0x400000) || (bits & 0x10000)" ") (" "Wrapper anon boxes should always have FCDATA_USE_CHILD_ITEMS" ")"); do { MOZ_CrashSequence(__null, 3684); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3685 | |
| 3686 | // Don't create a subdocument frame for iframes if we're creating extra frames |
| 3687 | if (aState.mCreatingExtraFrames && |
| 3688 | aItem.mContent->IsHTMLElement(nsGkAtoms::iframe)) { |
| 3689 | return; |
| 3690 | } |
| 3691 | |
| 3692 | nsIContent* const content = aItem.mContent; |
| 3693 | nsIFrame* newFrame; |
| 3694 | nsIFrame* primaryFrame; |
| 3695 | ComputedStyle* const computedStyle = aItem.mComputedStyle; |
| 3696 | const nsStyleDisplay* display = computedStyle->StyleDisplay(); |
| 3697 | if (bits & FCDATA_FUNC_IS_FULL_CTOR0x4) { |
| 3698 | newFrame = (this->*(data->mFunc.mFullConstructor))( |
| 3699 | aState, aItem, aParentFrame, display, aFrameList); |
| 3700 | MOZ_ASSERT(newFrame, "Full constructor failed")do { static_assert( mozilla::detail::AssertionConditionType< decltype(newFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(newFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("newFrame" " (" "Full constructor failed" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 3700 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "newFrame" ") (" "Full constructor failed" ")"); do { MOZ_CrashSequence(__null, 3700); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3701 | primaryFrame = newFrame; |
| 3702 | } else { |
| 3703 | newFrame = (*data->mFunc.mCreationFunc)(mPresShell, computedStyle); |
| 3704 | |
| 3705 | const bool allowOutOfFlow = !(bits & FCDATA_DISALLOW_OUT_OF_FLOW0x8); |
| 3706 | nsContainerFrame* geometricParent = |
| 3707 | allowOutOfFlow ? aState.GetGeometricParent(*display, aParentFrame) |
| 3708 | : aParentFrame; |
| 3709 | |
| 3710 | // In the non-scrollframe case, primaryFrame and newFrame are equal; in the |
| 3711 | // scrollframe case, newFrame is the scrolled frame while primaryFrame is |
| 3712 | // the scrollframe. |
| 3713 | if ((bits & FCDATA_MAY_NEED_SCROLLFRAME0x80) && |
| 3714 | display->IsScrollableOverflow()) { |
| 3715 | nsContainerFrame* scrollframe = nullptr; |
| 3716 | BuildScrollContainerFrame(aState, content, computedStyle, newFrame, |
| 3717 | geometricParent, scrollframe); |
| 3718 | primaryFrame = scrollframe; |
| 3719 | } else { |
| 3720 | InitAndRestoreFrame(aState, content, geometricParent, newFrame); |
| 3721 | primaryFrame = newFrame; |
| 3722 | } |
| 3723 | |
| 3724 | // If we need to create a block formatting context to wrap our |
| 3725 | // kids, do it now. |
| 3726 | nsIFrame* maybeAbsoluteContainingBlockStyleFrame = primaryFrame; |
| 3727 | nsIFrame* maybeAbsoluteContainingBlock = newFrame; |
| 3728 | nsIFrame* possiblyLeafFrame = newFrame; |
| 3729 | nsContainerFrame* outerFrame = nullptr; |
| 3730 | if (bits & FCDATA_CREATE_BLOCK_WRAPPER_FOR_ALL_KIDS0x40000) { |
| 3731 | RefPtr<ComputedStyle> outerStyle = |
| 3732 | mPresShell->StyleSet()->ResolveInheritingAnonymousBoxStyle( |
| 3733 | data->mAnonBoxPseudo, computedStyle); |
| 3734 | #ifdef DEBUG1 |
| 3735 | nsContainerFrame* containerFrame = do_QueryFrame(newFrame); |
| 3736 | MOZ_ASSERT(containerFrame)do { static_assert( mozilla::detail::AssertionConditionType< decltype(containerFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(containerFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("containerFrame" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3736); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "containerFrame" ")"); do { MOZ_CrashSequence (__null, 3736); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 3737 | #endif |
| 3738 | nsContainerFrame* container = static_cast<nsContainerFrame*>(newFrame); |
| 3739 | nsContainerFrame* innerFrame = NS_NewBlockFrame(mPresShell, outerStyle); |
| 3740 | InitAndRestoreFrame(aState, content, container, innerFrame); |
| 3741 | outerFrame = innerFrame; |
| 3742 | |
| 3743 | SetInitialSingleChild(container, outerFrame); |
| 3744 | |
| 3745 | container->AddStateBits(NS_FRAME_OWNS_ANON_BOXES); |
| 3746 | |
| 3747 | // Now figure out whether newFrame or outerFrame should be the |
| 3748 | // absolute container. |
| 3749 | if (outerFrame->IsAbsPosContainingBlock()) { |
| 3750 | maybeAbsoluteContainingBlock = outerFrame; |
| 3751 | maybeAbsoluteContainingBlockStyleFrame = outerFrame; |
| 3752 | innerFrame->AddStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 3753 | } |
| 3754 | |
| 3755 | // Our kids should go into the innerFrame. |
| 3756 | newFrame = innerFrame; |
| 3757 | } |
| 3758 | |
| 3759 | aState.AddChild(primaryFrame, aFrameList, content, aParentFrame, |
| 3760 | allowOutOfFlow, allowOutOfFlow); |
| 3761 | |
| 3762 | nsContainerFrame* newFrameAsContainer = do_QueryFrame(newFrame); |
| 3763 | if (newFrameAsContainer) { |
| 3764 | // Process the child content if requested |
| 3765 | nsFrameList childList; |
| 3766 | nsFrameConstructorSaveState absoluteSaveState; |
| 3767 | |
| 3768 | if (bits & FCDATA_FORCE_NULL_ABSPOS_CONTAINER0x10) { |
| 3769 | aState.PushAbsoluteContainingBlock(nullptr, nullptr, absoluteSaveState); |
| 3770 | } else if (!(bits & FCDATA_SKIP_ABSPOS_PUSH0x200)) { |
| 3771 | maybeAbsoluteContainingBlock->AddStateBits( |
| 3772 | NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 3773 | if (maybeAbsoluteContainingBlockStyleFrame->IsAbsPosContainingBlock()) { |
| 3774 | auto* cf = |
| 3775 | static_cast<nsContainerFrame*>(maybeAbsoluteContainingBlock); |
| 3776 | aState.PushAbsoluteContainingBlock( |
| 3777 | cf, maybeAbsoluteContainingBlockStyleFrame, absoluteSaveState); |
| 3778 | } |
| 3779 | } |
| 3780 | |
| 3781 | nsFrameConstructorSaveState floatSaveState; |
| 3782 | aState.MaybePushFloatContainingBlock(newFrameAsContainer, floatSaveState); |
| 3783 | |
| 3784 | if (bits & FCDATA_USE_CHILD_ITEMS0x10000) { |
| 3785 | // At this point, we have not set up the auto value for this frame, and |
| 3786 | // no caller will have set it so it is not redundant and therefor will |
| 3787 | // not assert. |
| 3788 | AutoFrameConstructionPageName pageNameTracker(aState, |
| 3789 | newFrameAsContainer); |
| 3790 | ConstructFramesFromItemList( |
| 3791 | aState, aItem.mChildItems, newFrameAsContainer, |
| 3792 | bits & FCDATA_IS_WRAPPER_ANON_BOX0x400000, childList); |
| 3793 | } else { |
| 3794 | // Process the child frames. |
| 3795 | ProcessChildren(aState, content, computedStyle, newFrameAsContainer, |
| 3796 | !(bits & FCDATA_DISALLOW_GENERATED_CONTENT0x400), childList, |
| 3797 | (bits & FCDATA_ALLOW_BLOCK_STYLES0x8000) != 0, |
| 3798 | possiblyLeafFrame); |
| 3799 | } |
| 3800 | |
| 3801 | if (bits & FCDATA_WRAP_KIDS_IN_BLOCKS0x20) { |
| 3802 | nsFrameList newList; |
| 3803 | nsFrameList currentBlockList; |
| 3804 | nsIFrame* f; |
| 3805 | while ((f = childList.FirstChild()) != nullptr) { |
| 3806 | bool wrapFrame = IsInlineFrame(f) || IsFramePartOfIBSplit(f); |
| 3807 | if (!wrapFrame) { |
| 3808 | FlushAccumulatedBlock(aState, content, newFrameAsContainer, |
| 3809 | currentBlockList, newList); |
| 3810 | } |
| 3811 | |
| 3812 | childList.RemoveFrame(f); |
| 3813 | if (wrapFrame) { |
| 3814 | currentBlockList.AppendFrame(nullptr, f); |
| 3815 | } else { |
| 3816 | newList.AppendFrame(nullptr, f); |
| 3817 | } |
| 3818 | } |
| 3819 | FlushAccumulatedBlock(aState, content, newFrameAsContainer, |
| 3820 | currentBlockList, newList); |
| 3821 | |
| 3822 | if (childList.NotEmpty()) { |
| 3823 | // an error must have occurred, delete unprocessed frames |
| 3824 | DestroyFramesInList(mPresShell, childList); |
| 3825 | } |
| 3826 | |
| 3827 | childList = std::move(newList); |
| 3828 | } |
| 3829 | |
| 3830 | // Set the frame's initial child list. Note that MathML depends on this |
| 3831 | // being called even if childList is empty! |
| 3832 | newFrameAsContainer->SetInitialChildList(FrameChildListID::Principal, |
| 3833 | std::move(childList)); |
| 3834 | } |
| 3835 | } |
| 3836 | |
| 3837 | NS_ASSERTION(newFrame->IsLineParticipant() ==do { if (!(newFrame->IsLineParticipant() == ((bits & 0x2000 ) != 0))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Incorrectly set FCDATA_IS_LINE_PARTICIPANT bits" , "newFrame->IsLineParticipant() == ((bits & FCDATA_IS_LINE_PARTICIPANT) != 0)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3839); MOZ_PretendNoReturn (); } } while (0) |
| 3838 | ((bits & FCDATA_IS_LINE_PARTICIPANT) != 0),do { if (!(newFrame->IsLineParticipant() == ((bits & 0x2000 ) != 0))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Incorrectly set FCDATA_IS_LINE_PARTICIPANT bits" , "newFrame->IsLineParticipant() == ((bits & FCDATA_IS_LINE_PARTICIPANT) != 0)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3839); MOZ_PretendNoReturn (); } } while (0) |
| 3839 | "Incorrectly set FCDATA_IS_LINE_PARTICIPANT bits")do { if (!(newFrame->IsLineParticipant() == ((bits & 0x2000 ) != 0))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Incorrectly set FCDATA_IS_LINE_PARTICIPANT bits" , "newFrame->IsLineParticipant() == ((bits & FCDATA_IS_LINE_PARTICIPANT) != 0)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3839); MOZ_PretendNoReturn (); } } while (0); |
| 3840 | |
| 3841 | // Even if mCreatingExtraFrames is set, we may need to SetPrimaryFrame for |
| 3842 | // generated content that doesn't have one yet. Note that we have to examine |
| 3843 | // the frame bit, because by this point mIsGeneratedContent has been cleared |
| 3844 | // on aItem. |
| 3845 | if ((!aState.mCreatingExtraFrames || |
| 3846 | (aItem.mContent->IsRootOfNativeAnonymousSubtree() && |
| 3847 | !aItem.mContent->GetPrimaryFrame())) && |
| 3848 | !(bits & FCDATA_SKIP_FRAMESET0x1)) { |
| 3849 | aItem.mContent->SetPrimaryFrame(primaryFrame); |
| 3850 | ActiveLayerTracker::TransferActivityToFrame(aItem.mContent, primaryFrame); |
| 3851 | } |
| 3852 | } |
| 3853 | |
| 3854 | static void GatherSubtreeElements(Element* aElement, |
| 3855 | nsTArray<Element*>& aElements) { |
| 3856 | aElements.AppendElement(aElement); |
| 3857 | StyleChildrenIterator iter(aElement); |
| 3858 | for (nsIContent* c = iter.GetNextChild(); c; c = iter.GetNextChild()) { |
| 3859 | if (!c->IsElement()) { |
| 3860 | continue; |
| 3861 | } |
| 3862 | GatherSubtreeElements(c->AsElement(), aElements); |
| 3863 | } |
| 3864 | } |
| 3865 | |
| 3866 | nsresult nsCSSFrameConstructor::GetAnonymousContent( |
| 3867 | nsIContent* aParent, nsIFrame* aParentFrame, |
| 3868 | nsTArray<nsIAnonymousContentCreator::ContentInfo>& aContent) { |
| 3869 | nsIAnonymousContentCreator* creator = do_QueryFrame(aParentFrame); |
| 3870 | if (!creator) { |
| 3871 | return NS_OK; |
| 3872 | } |
| 3873 | |
| 3874 | nsresult rv = creator->CreateAnonymousContent(aContent); |
| 3875 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 3876 | // CreateAnonymousContent failed, e.g. because the page has a <use> loop. |
| 3877 | return rv; |
| 3878 | } |
| 3879 | |
| 3880 | if (aContent.IsEmpty()) { |
| 3881 | return NS_OK; |
| 3882 | } |
| 3883 | |
| 3884 | const bool devtoolsEventsEnabled = |
| 3885 | mDocument->DevToolsAnonymousAndShadowEventsEnabled(); |
| 3886 | |
| 3887 | MOZ_ASSERT(aParent->IsElement())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParent->IsElement())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParent->IsElement()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aParent->IsElement()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 3887); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aParent->IsElement()" ")"); do { MOZ_CrashSequence (__null, 3887); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 3888 | for (const auto& info : aContent) { |
| 3889 | // get our child's content and set its parent to our content |
| 3890 | nsIContent* content = info.mContent; |
| 3891 | content->SetIsNativeAnonymousRoot(); |
| 3892 | |
| 3893 | BindContext context(*aParent->AsElement(), BindContext::ForNativeAnonymous); |
| 3894 | rv = content->BindToTree(context, *aParent); |
| 3895 | |
| 3896 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 3897 | content->UnbindFromTree(); |
| 3898 | return rv; |
| 3899 | } |
| 3900 | |
| 3901 | if (devtoolsEventsEnabled) { |
| 3902 | content->QueueDevtoolsAnonymousEvent(/* aIsRemove = */ false); |
| 3903 | } |
| 3904 | } |
| 3905 | |
| 3906 | // Some situations where we don't cache anonymous content styles: |
| 3907 | // |
| 3908 | // * when visibility or pointer-events is anything other than the initial |
| 3909 | // value; we rely on visibility and pointer-events inheriting into anonymous |
| 3910 | // content, but don't bother adding this state to the AnonymousContentKey, |
| 3911 | // since it's not so common. Note that with overlay scrollbars, scrollbars |
| 3912 | // always start off with pointer-events: none so we don't need to check for |
| 3913 | // that in that case. |
| 3914 | // |
| 3915 | // * when the medium is anything other than screen; some UA style sheet rules |
| 3916 | // apply in e.g. print medium, and will give different results from the |
| 3917 | // cached styles |
| 3918 | Maybe<bool> computedAllowStyleCaching; |
| 3919 | auto ComputeAllowStyleCaching = [&] { |
| 3920 | if (!StaticPrefs::layout_css_cached_scrollbar_styles_enabled()) { |
| 3921 | return false; |
| 3922 | } |
| 3923 | if (aParentFrame->StyleVisibility()->mVisible != StyleVisibility::Visible) { |
| 3924 | return false; |
| 3925 | } |
| 3926 | nsPresContext* pc = mPresShell->GetPresContext(); |
| 3927 | if (!pc->UseOverlayScrollbars() && |
| 3928 | aParentFrame->StyleUI()->ComputedPointerEvents() != |
| 3929 | StylePointerEvents::Auto) { |
| 3930 | return false; |
| 3931 | } |
| 3932 | if (pc->Medium() != nsGkAtoms::screen) { |
| 3933 | return false; |
| 3934 | } |
| 3935 | return true; |
| 3936 | }; |
| 3937 | |
| 3938 | auto AllowStyleCaching = [&] { |
| 3939 | if (computedAllowStyleCaching.isNothing()) { |
| 3940 | computedAllowStyleCaching.emplace(ComputeAllowStyleCaching()); |
| 3941 | } |
| 3942 | return computedAllowStyleCaching.value(); |
| 3943 | }; |
| 3944 | |
| 3945 | // Compute styles for the anonymous content tree. |
| 3946 | ServoStyleSet* styleSet = mPresShell->StyleSet(); |
| 3947 | for (auto& info : aContent) { |
| 3948 | Element* e = Element::FromNode(info.mContent); |
| 3949 | if (!e) { |
| 3950 | continue; |
| 3951 | } |
| 3952 | |
| 3953 | if (info.mKey == AnonymousContentKey::None || !AllowStyleCaching()) { |
| 3954 | // Most NAC subtrees do not use caching of computed styles. Just go |
| 3955 | // ahead and eagerly style the subtree. |
| 3956 | styleSet->StyleNewSubtree(e); |
| 3957 | continue; |
| 3958 | } |
| 3959 | |
| 3960 | // We have a NAC subtree for which we can use cached styles. |
| 3961 | AutoTArray<RefPtr<ComputedStyle>, 2> cachedStyles; |
| 3962 | AutoTArray<Element*, 2> elements; |
| 3963 | |
| 3964 | GatherSubtreeElements(e, elements); |
| 3965 | styleSet->GetCachedAnonymousContentStyles(info.mKey, cachedStyles); |
| 3966 | |
| 3967 | if (cachedStyles.IsEmpty()) { |
| 3968 | // We haven't stored cached styles for this kind of NAC subtree yet. |
| 3969 | // Eagerly compute those styles, then cache them for later. |
| 3970 | styleSet->StyleNewSubtree(e); |
| 3971 | for (Element* e : elements) { |
| 3972 | if (e->HasServoData()) { |
| 3973 | cachedStyles.AppendElement(ServoStyleSet::ResolveServoStyle(*e)); |
| 3974 | } else { |
| 3975 | cachedStyles.AppendElement(nullptr); |
| 3976 | } |
| 3977 | } |
| 3978 | styleSet->PutCachedAnonymousContentStyles(info.mKey, |
| 3979 | std::move(cachedStyles)); |
| 3980 | continue; |
| 3981 | } |
| 3982 | |
| 3983 | // We previously stored cached styles for this kind of NAC subtree. |
| 3984 | // Iterate over them and set them on the subtree's elements. |
| 3985 | MOZ_ASSERT(cachedStyles.Length() == elements.Length(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(cachedStyles.Length() == elements.Length())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(cachedStyles.Length() == elements.Length()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("cachedStyles.Length() == elements.Length()" " (" "should always produce the same size NAC subtree" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 3986); AnnotateMozCrashReason("MOZ_ASSERT" "(" "cachedStyles.Length() == elements.Length()" ") (" "should always produce the same size NAC subtree" ")") ; do { MOZ_CrashSequence(__null, 3986); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 3986 | "should always produce the same size NAC subtree")do { static_assert( mozilla::detail::AssertionConditionType< decltype(cachedStyles.Length() == elements.Length())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(cachedStyles.Length() == elements.Length()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("cachedStyles.Length() == elements.Length()" " (" "should always produce the same size NAC subtree" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 3986); AnnotateMozCrashReason("MOZ_ASSERT" "(" "cachedStyles.Length() == elements.Length()" ") (" "should always produce the same size NAC subtree" ")") ; do { MOZ_CrashSequence(__null, 3986); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3987 | for (size_t i = 0, len = cachedStyles.Length(); i != len; ++i) { |
| 3988 | if (cachedStyles[i]) { |
| 3989 | #ifdef DEBUG1 |
| 3990 | // Assert that our cached style is the same as one we could compute. |
| 3991 | RefPtr<ComputedStyle> cs = styleSet->ResolveStyleLazily(*elements[i]); |
| 3992 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(cachedStyles[i]->EqualForCachedAnonymousContentStyle (*cs))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(cachedStyles[i]->EqualForCachedAnonymousContentStyle (*cs)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("cachedStyles[i]->EqualForCachedAnonymousContentStyle(*cs)" " (" "cached anonymous content styles should be identical to those we " "would compute normally" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 3995); AnnotateMozCrashReason("MOZ_ASSERT" "(" "cachedStyles[i]->EqualForCachedAnonymousContentStyle(*cs)" ") (" "cached anonymous content styles should be identical to those we " "would compute normally" ")"); do { MOZ_CrashSequence(__null , 3995); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 3993 | cachedStyles[i]->EqualForCachedAnonymousContentStyle(*cs),do { static_assert( mozilla::detail::AssertionConditionType< decltype(cachedStyles[i]->EqualForCachedAnonymousContentStyle (*cs))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(cachedStyles[i]->EqualForCachedAnonymousContentStyle (*cs)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("cachedStyles[i]->EqualForCachedAnonymousContentStyle(*cs)" " (" "cached anonymous content styles should be identical to those we " "would compute normally" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 3995); AnnotateMozCrashReason("MOZ_ASSERT" "(" "cachedStyles[i]->EqualForCachedAnonymousContentStyle(*cs)" ") (" "cached anonymous content styles should be identical to those we " "would compute normally" ")"); do { MOZ_CrashSequence(__null , 3995); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 3994 | "cached anonymous content styles should be identical to those we "do { static_assert( mozilla::detail::AssertionConditionType< decltype(cachedStyles[i]->EqualForCachedAnonymousContentStyle (*cs))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(cachedStyles[i]->EqualForCachedAnonymousContentStyle (*cs)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("cachedStyles[i]->EqualForCachedAnonymousContentStyle(*cs)" " (" "cached anonymous content styles should be identical to those we " "would compute normally" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 3995); AnnotateMozCrashReason("MOZ_ASSERT" "(" "cachedStyles[i]->EqualForCachedAnonymousContentStyle(*cs)" ") (" "cached anonymous content styles should be identical to those we " "would compute normally" ")"); do { MOZ_CrashSequence(__null , 3995); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 3995 | "would compute normally")do { static_assert( mozilla::detail::AssertionConditionType< decltype(cachedStyles[i]->EqualForCachedAnonymousContentStyle (*cs))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(cachedStyles[i]->EqualForCachedAnonymousContentStyle (*cs)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("cachedStyles[i]->EqualForCachedAnonymousContentStyle(*cs)" " (" "cached anonymous content styles should be identical to those we " "would compute normally" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 3995); AnnotateMozCrashReason("MOZ_ASSERT" "(" "cachedStyles[i]->EqualForCachedAnonymousContentStyle(*cs)" ") (" "cached anonymous content styles should be identical to those we " "would compute normally" ")"); do { MOZ_CrashSequence(__null , 3995); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 3996 | // All overlay scrollbars start off as inactive, so we can rely on their |
| 3997 | // pointer-events value being always none. |
| 3998 | MOZ_ASSERT(!mPresShell->GetPresContext()->UseOverlayScrollbars() ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mPresShell->GetPresContext()->UseOverlayScrollbars () || cs->StyleUI()->ComputedPointerEvents() == StylePointerEvents ::None)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!mPresShell->GetPresContext()->UseOverlayScrollbars () || cs->StyleUI()->ComputedPointerEvents() == StylePointerEvents ::None))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!mPresShell->GetPresContext()->UseOverlayScrollbars() || cs->StyleUI()->ComputedPointerEvents() == StylePointerEvents::None" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4000); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!mPresShell->GetPresContext()->UseOverlayScrollbars() || cs->StyleUI()->ComputedPointerEvents() == StylePointerEvents::None" ")"); do { MOZ_CrashSequence(__null, 4000); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 3999 | cs->StyleUI()->ComputedPointerEvents() ==do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mPresShell->GetPresContext()->UseOverlayScrollbars () || cs->StyleUI()->ComputedPointerEvents() == StylePointerEvents ::None)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!mPresShell->GetPresContext()->UseOverlayScrollbars () || cs->StyleUI()->ComputedPointerEvents() == StylePointerEvents ::None))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!mPresShell->GetPresContext()->UseOverlayScrollbars() || cs->StyleUI()->ComputedPointerEvents() == StylePointerEvents::None" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4000); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!mPresShell->GetPresContext()->UseOverlayScrollbars() || cs->StyleUI()->ComputedPointerEvents() == StylePointerEvents::None" ")"); do { MOZ_CrashSequence(__null, 4000); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4000 | StylePointerEvents::None)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mPresShell->GetPresContext()->UseOverlayScrollbars () || cs->StyleUI()->ComputedPointerEvents() == StylePointerEvents ::None)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!mPresShell->GetPresContext()->UseOverlayScrollbars () || cs->StyleUI()->ComputedPointerEvents() == StylePointerEvents ::None))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!mPresShell->GetPresContext()->UseOverlayScrollbars() || cs->StyleUI()->ComputedPointerEvents() == StylePointerEvents::None" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4000); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!mPresShell->GetPresContext()->UseOverlayScrollbars() || cs->StyleUI()->ComputedPointerEvents() == StylePointerEvents::None" ")"); do { MOZ_CrashSequence(__null, 4000); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4001 | #endif |
| 4002 | Servo_SetExplicitStyle(elements[i], cachedStyles[i]); |
| 4003 | } |
| 4004 | } |
| 4005 | } |
| 4006 | |
| 4007 | return NS_OK; |
| 4008 | } |
| 4009 | |
| 4010 | /* static */ |
| 4011 | const nsCSSFrameConstructor::FrameConstructionData* |
| 4012 | nsCSSFrameConstructor::FindXULTagData(const Element& aElement, |
| 4013 | ComputedStyle& aStyle) { |
| 4014 | MOZ_ASSERT(aElement.IsXULElement())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aElement.IsXULElement())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aElement.IsXULElement()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aElement.IsXULElement()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4014); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aElement.IsXULElement()" ")"); do { MOZ_CrashSequence (__null, 4014); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 4015 | static constexpr FrameConstructionData kPopupData(NS_NewMenuPopupFrame); |
| 4016 | |
| 4017 | static constexpr FrameConstructionDataByTag sXULTagData[] = { |
| 4018 | SIMPLE_TAG_CREATE(image, NS_NewXULImageFrame){nsGkAtoms::image, FrameConstructionData(NS_NewXULImageFrame) }, |
| 4019 | SIMPLE_TAG_CREATE(treechildren, NS_NewTreeBodyFrame){nsGkAtoms::treechildren, FrameConstructionData(NS_NewTreeBodyFrame )}, |
| 4020 | SIMPLE_TAG_CHAIN(label,{nsGkAtoms::label, FrameConstructionData(nsCSSFrameConstructor ::FindLabelOrDescriptionData)} |
| 4021 | nsCSSFrameConstructor::FindLabelOrDescriptionData){nsGkAtoms::label, FrameConstructionData(nsCSSFrameConstructor ::FindLabelOrDescriptionData)}, |
| 4022 | SIMPLE_TAG_CHAIN(description,{nsGkAtoms::description, FrameConstructionData(nsCSSFrameConstructor ::FindLabelOrDescriptionData)} |
| 4023 | nsCSSFrameConstructor::FindLabelOrDescriptionData){nsGkAtoms::description, FrameConstructionData(nsCSSFrameConstructor ::FindLabelOrDescriptionData)}, |
| 4024 | SIMPLE_TAG_CREATE(iframe, NS_NewSubDocumentFrame){nsGkAtoms::iframe, FrameConstructionData(NS_NewSubDocumentFrame )}, |
| 4025 | SIMPLE_TAG_CREATE(editor, NS_NewSubDocumentFrame){nsGkAtoms::editor, FrameConstructionData(NS_NewSubDocumentFrame )}, |
| 4026 | SIMPLE_TAG_CREATE(browser, NS_NewSubDocumentFrame){nsGkAtoms::browser, FrameConstructionData(NS_NewSubDocumentFrame )}, |
| 4027 | SIMPLE_TAG_CREATE(splitter, NS_NewSplitterFrame){nsGkAtoms::splitter, FrameConstructionData(NS_NewSplitterFrame )}, |
| 4028 | SIMPLE_TAG_CREATE(scrollbar, NS_NewScrollbarFrame){nsGkAtoms::scrollbar, FrameConstructionData(NS_NewScrollbarFrame )}, |
| 4029 | SIMPLE_TAG_CREATE(slider, NS_NewSliderFrame){nsGkAtoms::slider, FrameConstructionData(NS_NewSliderFrame)}, |
| 4030 | SIMPLE_TAG_CREATE(thumb, NS_NewSimpleXULLeafFrame){nsGkAtoms::thumb, FrameConstructionData(NS_NewSimpleXULLeafFrame )}, |
| 4031 | SIMPLE_TAG_CREATE(scrollcorner, NS_NewSimpleXULLeafFrame){nsGkAtoms::scrollcorner, FrameConstructionData(NS_NewSimpleXULLeafFrame )}, |
| 4032 | SIMPLE_TAG_CREATE(resizer, NS_NewSimpleXULLeafFrame){nsGkAtoms::resizer, FrameConstructionData(NS_NewSimpleXULLeafFrame )}, |
| 4033 | SIMPLE_TAG_CREATE(scrollbarbutton, NS_NewScrollbarButtonFrame){nsGkAtoms::scrollbarbutton, FrameConstructionData(NS_NewScrollbarButtonFrame )}, |
| 4034 | {nsGkAtoms::panel, kPopupData}, |
| 4035 | {nsGkAtoms::menupopup, kPopupData}, |
| 4036 | {nsGkAtoms::tooltip, kPopupData}, |
| 4037 | }; |
| 4038 | |
| 4039 | return FindDataByTag(aElement, aStyle, sXULTagData, std::size(sXULTagData)); |
| 4040 | } |
| 4041 | |
| 4042 | /* static */ |
| 4043 | const nsCSSFrameConstructor::FrameConstructionData* |
| 4044 | nsCSSFrameConstructor::FindLabelOrDescriptionData(const Element& aElement, |
| 4045 | ComputedStyle&) { |
| 4046 | if (!aElement.OwnerDoc()->ChromeRulesEnabled()) { |
| 4047 | return nullptr; |
| 4048 | } |
| 4049 | |
| 4050 | // Follow CSS display value if no value attribute |
| 4051 | if (!aElement.HasAttr(nsGkAtoms::value)) { |
| 4052 | return nullptr; |
| 4053 | } |
| 4054 | |
| 4055 | // Follow CSS display if there's no crop="center". |
| 4056 | if (!aElement.AttrValueIs(kNameSpaceID_None, nsGkAtoms::crop, |
| 4057 | nsGkAtoms::center, eCaseMatters)) { |
| 4058 | return nullptr; |
| 4059 | } |
| 4060 | |
| 4061 | static constexpr FrameConstructionData sMiddleCroppingData( |
| 4062 | NS_NewMiddleCroppingLabelFrame); |
| 4063 | return &sMiddleCroppingData; |
| 4064 | } |
| 4065 | |
| 4066 | already_AddRefed<ComputedStyle> |
| 4067 | nsCSSFrameConstructor::BeginBuildingScrollContainerFrame( |
| 4068 | nsFrameConstructorState& aState, nsIContent* aContent, |
| 4069 | ComputedStyle* aContentStyle, nsContainerFrame* aParentFrame, bool aIsRoot, |
| 4070 | nsContainerFrame*& aNewFrame) { |
| 4071 | nsContainerFrame* scrollContainerFrame = aNewFrame; |
| 4072 | |
| 4073 | if (!scrollContainerFrame) { |
| 4074 | scrollContainerFrame = |
| 4075 | NS_NewScrollContainerFrame(mPresShell, aContentStyle, aIsRoot); |
| 4076 | InitAndRestoreFrame(aState, aContent, aParentFrame, scrollContainerFrame); |
| 4077 | } |
| 4078 | |
| 4079 | MOZ_ASSERT(scrollContainerFrame)do { static_assert( mozilla::detail::AssertionConditionType< decltype(scrollContainerFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(scrollContainerFrame))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("scrollContainerFrame" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4079); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "scrollContainerFrame" ")"); do { MOZ_CrashSequence (__null, 4079); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 4080 | |
| 4081 | // if there are any anonymous children for the scroll frame, create |
| 4082 | // frames for them. |
| 4083 | // |
| 4084 | // We can't take the normal ProcessChildren path, because the NAC needs to |
| 4085 | // be parented to the scrollframe, and everything else needs to be parented |
| 4086 | // to the scrolledframe. |
| 4087 | AutoTArray<nsIAnonymousContentCreator::ContentInfo, 4> scrollNAC; |
| 4088 | DebugOnly<nsresult> rv = |
| 4089 | GetAnonymousContent(aContent, scrollContainerFrame, scrollNAC); |
| 4090 | MOZ_ASSERT(NS_SUCCEEDED(rv))do { static_assert( mozilla::detail::AssertionConditionType< decltype(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1) )))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1) ))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1)))", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 4090); AnnotateMozCrashReason("MOZ_ASSERT" "(" "((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1)))" ")"); do { MOZ_CrashSequence(__null, 4090); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4091 | nsFrameList anonymousList; |
| 4092 | if (!scrollNAC.IsEmpty()) { |
| 4093 | nsFrameConstructorSaveState floatSaveState; |
| 4094 | aState.MaybePushFloatContainingBlock(scrollContainerFrame, floatSaveState); |
| 4095 | |
| 4096 | AutoFrameConstructionItemList items(this); |
| 4097 | AutoFrameConstructionPageName pageNameTracker(aState, scrollContainerFrame); |
| 4098 | AddFCItemsForAnonymousContent(aState, scrollContainerFrame, scrollNAC, |
| 4099 | items, pageNameTracker); |
| 4100 | ConstructFramesFromItemList(aState, items, scrollContainerFrame, |
| 4101 | /* aParentIsWrapperAnonBox = */ false, |
| 4102 | anonymousList); |
| 4103 | } |
| 4104 | |
| 4105 | aNewFrame = scrollContainerFrame; |
| 4106 | scrollContainerFrame->AddStateBits(NS_FRAME_OWNS_ANON_BOXES); |
| 4107 | |
| 4108 | // we used the style that was passed in. So resolve another one. |
| 4109 | ServoStyleSet* styleSet = mPresShell->StyleSet(); |
| 4110 | RefPtr<ComputedStyle> scrolledChildStyle = |
| 4111 | styleSet->ResolveInheritingAnonymousBoxStyle( |
| 4112 | PseudoStyleType::MozScrolledContent, aContentStyle); |
| 4113 | |
| 4114 | scrollContainerFrame->SetInitialChildList(FrameChildListID::Principal, |
| 4115 | std::move(anonymousList)); |
| 4116 | |
| 4117 | return scrolledChildStyle.forget(); |
| 4118 | } |
| 4119 | |
| 4120 | void nsCSSFrameConstructor::FinishBuildingScrollContainerFrame( |
| 4121 | nsContainerFrame* aScrollContainerFrame, nsIFrame* aScrolledFrame) { |
| 4122 | aScrollContainerFrame->AppendFrames( |
| 4123 | FrameChildListID::Principal, nsFrameList(aScrolledFrame, aScrolledFrame)); |
| 4124 | } |
| 4125 | |
| 4126 | void nsCSSFrameConstructor::BuildScrollContainerFrame( |
| 4127 | nsFrameConstructorState& aState, nsIContent* aContent, |
| 4128 | ComputedStyle* aContentStyle, nsIFrame* aScrolledFrame, |
| 4129 | nsContainerFrame* aParentFrame, nsContainerFrame*& aNewFrame) { |
| 4130 | RefPtr<ComputedStyle> scrolledContentStyle = |
| 4131 | BeginBuildingScrollContainerFrame(aState, aContent, aContentStyle, |
| 4132 | aParentFrame, false, aNewFrame); |
| 4133 | |
| 4134 | aScrolledFrame->SetComputedStyleWithoutNotification(scrolledContentStyle); |
| 4135 | InitAndRestoreFrame(aState, aContent, aNewFrame, aScrolledFrame); |
| 4136 | |
| 4137 | FinishBuildingScrollContainerFrame(aNewFrame, aScrolledFrame); |
| 4138 | } |
| 4139 | |
| 4140 | const nsCSSFrameConstructor::FrameConstructionData* |
| 4141 | nsCSSFrameConstructor::FindDisplayData(const nsStyleDisplay& aDisplay, |
| 4142 | const Element& aElement) { |
| 4143 | static_assert(eParentTypeCount < (1 << (32 - FCDATA_PARENT_TYPE_OFFSET28)), |
| 4144 | "Check eParentTypeCount should not overflow"); |
| 4145 | |
| 4146 | // The style system ensures that floated and positioned frames are |
| 4147 | // block-level. |
| 4148 | NS_ASSERTION(do { if (!(!(aDisplay.IsFloatingStyle() || aDisplay.IsAbsolutelyPositionedStyle ()) || aDisplay.IsBlockOutsideStyle())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Style system did not apply CSS2.1 section 9.7 fixups", "!(aDisplay.IsFloatingStyle() || aDisplay.IsAbsolutelyPositionedStyle()) || aDisplay.IsBlockOutsideStyle()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4151); MOZ_PretendNoReturn (); } } while (0) |
| 4149 | !(aDisplay.IsFloatingStyle() || aDisplay.IsAbsolutelyPositionedStyle()) ||do { if (!(!(aDisplay.IsFloatingStyle() || aDisplay.IsAbsolutelyPositionedStyle ()) || aDisplay.IsBlockOutsideStyle())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Style system did not apply CSS2.1 section 9.7 fixups", "!(aDisplay.IsFloatingStyle() || aDisplay.IsAbsolutelyPositionedStyle()) || aDisplay.IsBlockOutsideStyle()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4151); MOZ_PretendNoReturn (); } } while (0) |
| 4150 | aDisplay.IsBlockOutsideStyle(),do { if (!(!(aDisplay.IsFloatingStyle() || aDisplay.IsAbsolutelyPositionedStyle ()) || aDisplay.IsBlockOutsideStyle())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Style system did not apply CSS2.1 section 9.7 fixups", "!(aDisplay.IsFloatingStyle() || aDisplay.IsAbsolutelyPositionedStyle()) || aDisplay.IsBlockOutsideStyle()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4151); MOZ_PretendNoReturn (); } } while (0) |
| 4151 | "Style system did not apply CSS2.1 section 9.7 fixups")do { if (!(!(aDisplay.IsFloatingStyle() || aDisplay.IsAbsolutelyPositionedStyle ()) || aDisplay.IsBlockOutsideStyle())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Style system did not apply CSS2.1 section 9.7 fixups", "!(aDisplay.IsFloatingStyle() || aDisplay.IsAbsolutelyPositionedStyle()) || aDisplay.IsBlockOutsideStyle()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4151); MOZ_PretendNoReturn (); } } while (0); |
| 4152 | |
| 4153 | // If this is "body", try propagating its scroll style to the viewport |
| 4154 | // Note that we need to do this even if the body is NOT scrollable; |
| 4155 | // it might have dynamically changed from scrollable to not scrollable, |
| 4156 | // and that might need to be propagated. |
| 4157 | // XXXbz is this the right place to do this? If this code moves, |
| 4158 | // make this function static. |
| 4159 | bool propagatedScrollToViewport = false; |
| 4160 | if (aElement.IsHTMLElement(nsGkAtoms::body)) { |
| 4161 | if (nsPresContext* presContext = mPresShell->GetPresContext()) { |
| 4162 | propagatedScrollToViewport = |
| 4163 | presContext->UpdateViewportScrollStylesOverride() == &aElement; |
| 4164 | MOZ_ASSERT(!propagatedScrollToViewport ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!propagatedScrollToViewport || !mPresShell->GetPresContext ()->IsPaginated())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!propagatedScrollToViewport || !mPresShell->GetPresContext()->IsPaginated()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!propagatedScrollToViewport || !mPresShell->GetPresContext()->IsPaginated()" " (" "Shouldn't propagate scroll in paginated contexts" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 4166); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!propagatedScrollToViewport || !mPresShell->GetPresContext()->IsPaginated()" ") (" "Shouldn't propagate scroll in paginated contexts" ")" ); do { MOZ_CrashSequence(__null, 4166); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4165 | !mPresShell->GetPresContext()->IsPaginated(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!propagatedScrollToViewport || !mPresShell->GetPresContext ()->IsPaginated())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!propagatedScrollToViewport || !mPresShell->GetPresContext()->IsPaginated()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!propagatedScrollToViewport || !mPresShell->GetPresContext()->IsPaginated()" " (" "Shouldn't propagate scroll in paginated contexts" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 4166); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!propagatedScrollToViewport || !mPresShell->GetPresContext()->IsPaginated()" ") (" "Shouldn't propagate scroll in paginated contexts" ")" ); do { MOZ_CrashSequence(__null, 4166); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4166 | "Shouldn't propagate scroll in paginated contexts")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!propagatedScrollToViewport || !mPresShell->GetPresContext ()->IsPaginated())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!propagatedScrollToViewport || !mPresShell->GetPresContext()->IsPaginated()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!propagatedScrollToViewport || !mPresShell->GetPresContext()->IsPaginated()" " (" "Shouldn't propagate scroll in paginated contexts" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 4166); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!propagatedScrollToViewport || !mPresShell->GetPresContext()->IsPaginated()" ") (" "Shouldn't propagate scroll in paginated contexts" ")" ); do { MOZ_CrashSequence(__null, 4166); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4167 | } |
| 4168 | } |
| 4169 | |
| 4170 | switch (aDisplay.DisplayInside()) { |
| 4171 | case StyleDisplayInside::Flow: |
| 4172 | case StyleDisplayInside::FlowRoot: { |
| 4173 | if (aDisplay.IsInlineFlow()) { |
| 4174 | static constexpr FrameConstructionData data( |
| 4175 | &nsCSSFrameConstructor::ConstructInline, |
| 4176 | FCDATA_IS_INLINE0x1000 | FCDATA_IS_LINE_PARTICIPANT0x2000); |
| 4177 | return &data; |
| 4178 | } |
| 4179 | |
| 4180 | // If the frame is a block-level frame and is scrollable, then wrap it in |
| 4181 | // a scroll frame. Except we don't want to do that for paginated contexts |
| 4182 | // for frames that are block-outside and aren't frames for native |
| 4183 | // anonymous stuff. |
| 4184 | // XXX Ignore tables for the time being (except caption) |
| 4185 | const uint32_t kCaptionCtorFlags = |
| 4186 | FCDATA_IS_TABLE_PART0x800 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeTable)(((uint32_t)(eTypeTable)) << 28); |
| 4187 | const bool caption = aDisplay.mDisplay == StyleDisplay::TableCaption; |
| 4188 | const bool needScrollFrame = |
| 4189 | aDisplay.IsScrollableOverflow() && !propagatedScrollToViewport; |
| 4190 | if (needScrollFrame) { |
| 4191 | const bool suppressScrollFrame = |
| 4192 | mPresShell->GetPresContext()->IsPaginated() && |
| 4193 | aDisplay.IsBlockOutsideStyle() && |
| 4194 | !aElement.IsInNativeAnonymousSubtree(); |
| 4195 | if (!suppressScrollFrame) { |
| 4196 | static constexpr FrameConstructionData sScrollableBlockData[2] = { |
| 4197 | {&nsCSSFrameConstructor::ConstructScrollableBlock}, |
| 4198 | {&nsCSSFrameConstructor::ConstructScrollableBlock, |
| 4199 | kCaptionCtorFlags}}; |
| 4200 | return &sScrollableBlockData[caption]; |
| 4201 | } |
| 4202 | } |
| 4203 | |
| 4204 | // Handle various non-scrollable blocks. |
| 4205 | static constexpr FrameConstructionData sNonScrollableBlockData[2] = { |
| 4206 | {&nsCSSFrameConstructor::ConstructNonScrollableBlock}, |
| 4207 | {&nsCSSFrameConstructor::ConstructNonScrollableBlock, |
| 4208 | kCaptionCtorFlags}}; |
| 4209 | return &sNonScrollableBlockData[caption]; |
| 4210 | } |
| 4211 | case StyleDisplayInside::Table: { |
| 4212 | static constexpr FrameConstructionData data( |
| 4213 | &nsCSSFrameConstructor::ConstructTable); |
| 4214 | return &data; |
| 4215 | } |
| 4216 | // NOTE: In the unlikely event that we add another table-part here that |
| 4217 | // has a desired-parent-type (& hence triggers table fixup), we'll need to |
| 4218 | // also update the flexbox chunk in ComputedStyle::ApplyStyleFixups(). |
| 4219 | case StyleDisplayInside::TableRowGroup: { |
| 4220 | static constexpr FrameConstructionData data( |
| 4221 | &nsCSSFrameConstructor::ConstructTableRowOrRowGroup, |
| 4222 | FCDATA_IS_TABLE_PART0x800 | |
| 4223 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeTable)(((uint32_t)(eTypeTable)) << 28)); |
| 4224 | return &data; |
| 4225 | } |
| 4226 | case StyleDisplayInside::TableColumn: { |
| 4227 | static constexpr FrameConstructionData data( |
| 4228 | &nsCSSFrameConstructor::ConstructTableCol, |
| 4229 | FCDATA_IS_TABLE_PART0x800 | |
| 4230 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeColGroup)(((uint32_t)(eTypeColGroup)) << 28)); |
| 4231 | return &data; |
| 4232 | } |
| 4233 | case StyleDisplayInside::TableColumnGroup: { |
| 4234 | static constexpr FrameConstructionData data( |
| 4235 | ToCreationFunc(NS_NewTableColGroupFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewTableColGroupFrame(aPs, aStyle); }, |
| 4236 | FCDATA_IS_TABLE_PART0x800 | FCDATA_DISALLOW_OUT_OF_FLOW0x8 | |
| 4237 | FCDATA_SKIP_ABSPOS_PUSH0x200 | |
| 4238 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeTable)(((uint32_t)(eTypeTable)) << 28)); |
| 4239 | return &data; |
| 4240 | } |
| 4241 | case StyleDisplayInside::TableHeaderGroup: { |
| 4242 | static constexpr FrameConstructionData data( |
| 4243 | &nsCSSFrameConstructor::ConstructTableRowOrRowGroup, |
| 4244 | FCDATA_IS_TABLE_PART0x800 | |
| 4245 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeTable)(((uint32_t)(eTypeTable)) << 28)); |
| 4246 | return &data; |
| 4247 | } |
| 4248 | case StyleDisplayInside::TableFooterGroup: { |
| 4249 | static constexpr FrameConstructionData data( |
| 4250 | &nsCSSFrameConstructor::ConstructTableRowOrRowGroup, |
| 4251 | FCDATA_IS_TABLE_PART0x800 | |
| 4252 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeTable)(((uint32_t)(eTypeTable)) << 28)); |
| 4253 | return &data; |
| 4254 | } |
| 4255 | case StyleDisplayInside::TableRow: { |
| 4256 | static constexpr FrameConstructionData data( |
| 4257 | &nsCSSFrameConstructor::ConstructTableRowOrRowGroup, |
| 4258 | FCDATA_IS_TABLE_PART0x800 | |
| 4259 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeRowGroup)(((uint32_t)(eTypeRowGroup)) << 28)); |
| 4260 | return &data; |
| 4261 | } |
| 4262 | case StyleDisplayInside::TableCell: { |
| 4263 | static constexpr FrameConstructionData data( |
| 4264 | &nsCSSFrameConstructor::ConstructTableCell, |
| 4265 | FCDATA_IS_TABLE_PART0x800 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeRow)(((uint32_t)(eTypeRow)) << 28)); |
| 4266 | return &data; |
| 4267 | } |
| 4268 | case StyleDisplayInside::Flex: |
| 4269 | case StyleDisplayInside::WebkitBox: { |
| 4270 | static constexpr FrameConstructionData nonScrollableData( |
| 4271 | ToCreationFunc(NS_NewFlexContainerFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewFlexContainerFrame(aPs, aStyle); }); |
| 4272 | static constexpr FrameConstructionData data( |
| 4273 | ToCreationFunc(NS_NewFlexContainerFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewFlexContainerFrame(aPs, aStyle); }, |
| 4274 | FCDATA_MAY_NEED_SCROLLFRAME0x80); |
| 4275 | return MOZ_UNLIKELY(propagatedScrollToViewport)(__builtin_expect(!!(propagatedScrollToViewport), 0)) ? &nonScrollableData |
| 4276 | : &data; |
| 4277 | } |
| 4278 | case StyleDisplayInside::Grid: |
| 4279 | case StyleDisplayInside::GridLanes: { |
| 4280 | static constexpr FrameConstructionData nonScrollableData( |
| 4281 | ToCreationFunc(NS_NewGridContainerFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewGridContainerFrame(aPs, aStyle); }); |
| 4282 | static constexpr FrameConstructionData data( |
| 4283 | ToCreationFunc(NS_NewGridContainerFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewGridContainerFrame(aPs, aStyle); }, |
| 4284 | FCDATA_MAY_NEED_SCROLLFRAME0x80); |
| 4285 | return MOZ_UNLIKELY(propagatedScrollToViewport)(__builtin_expect(!!(propagatedScrollToViewport), 0)) ? &nonScrollableData |
| 4286 | : &data; |
| 4287 | } |
| 4288 | case StyleDisplayInside::Ruby: { |
| 4289 | static constexpr FrameConstructionData data[] = { |
| 4290 | {&nsCSSFrameConstructor::ConstructBlockRubyFrame, |
| 4291 | FCDATA_MAY_NEED_SCROLLFRAME0x80}, |
| 4292 | {ToCreationFunc(NS_NewRubyFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewRubyFrame(aPs, aStyle); }, FCDATA_IS_LINE_PARTICIPANT0x2000}}; |
| 4293 | bool isInline = aDisplay.DisplayOutside() == StyleDisplayOutside::Inline; |
| 4294 | return &data[isInline]; |
| 4295 | } |
| 4296 | case StyleDisplayInside::RubyBase: { |
| 4297 | static constexpr FrameConstructionData data( |
| 4298 | ToCreationFunc(NS_NewRubyBaseFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewRubyBaseFrame(aPs, aStyle); }, |
| 4299 | FCDATA_IS_LINE_PARTICIPANT0x2000 | |
| 4300 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeRubyBaseContainer)(((uint32_t)(eTypeRubyBaseContainer)) << 28)); |
| 4301 | return &data; |
| 4302 | } |
| 4303 | case StyleDisplayInside::RubyBaseContainer: { |
| 4304 | static constexpr FrameConstructionData data( |
| 4305 | ToCreationFunc(NS_NewRubyBaseContainerFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewRubyBaseContainerFrame(aPs, aStyle); }, |
| 4306 | FCDATA_IS_LINE_PARTICIPANT0x2000 | |
| 4307 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeRuby)(((uint32_t)(eTypeRuby)) << 28)); |
| 4308 | return &data; |
| 4309 | } |
| 4310 | case StyleDisplayInside::RubyText: { |
| 4311 | static constexpr FrameConstructionData data( |
| 4312 | ToCreationFunc(NS_NewRubyTextFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewRubyTextFrame(aPs, aStyle); }, |
| 4313 | FCDATA_IS_LINE_PARTICIPANT0x2000 | |
| 4314 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeRubyTextContainer)(((uint32_t)(eTypeRubyTextContainer)) << 28)); |
| 4315 | return &data; |
| 4316 | } |
| 4317 | case StyleDisplayInside::RubyTextContainer: { |
| 4318 | static constexpr FrameConstructionData data( |
| 4319 | ToCreationFunc(NS_NewRubyTextContainerFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewRubyTextContainerFrame(aPs, aStyle); }, |
| 4320 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeRuby)(((uint32_t)(eTypeRuby)) << 28)); |
| 4321 | return &data; |
| 4322 | } |
| 4323 | default: |
| 4324 | MOZ_ASSERT_UNREACHABLE("unknown 'display' value")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "MOZ_ASSERT_UNREACHABLE: " "unknown 'display' value" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 4324); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "unknown 'display' value" ")"); do { MOZ_CrashSequence(__null, 4324); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 4325 | return nullptr; |
| 4326 | } |
| 4327 | } |
| 4328 | |
| 4329 | nsIFrame* nsCSSFrameConstructor::ConstructScrollableBlock( |
| 4330 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 4331 | nsContainerFrame* aParentFrame, const nsStyleDisplay* aDisplay, |
| 4332 | nsFrameList& aFrameList) { |
| 4333 | nsContainerFrame* newFrame = nullptr; |
| 4334 | ConstructScrollableBlockWithScrollContainer(aState, aItem, aParentFrame, |
| 4335 | aDisplay, aFrameList, newFrame); |
| 4336 | MOZ_ASSERT(newFrame)do { static_assert( mozilla::detail::AssertionConditionType< decltype(newFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(newFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("newFrame", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 4336); AnnotateMozCrashReason("MOZ_ASSERT" "(" "newFrame" ")" ); do { MOZ_CrashSequence(__null, 4336); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4337 | return newFrame; |
| 4338 | } |
| 4339 | |
| 4340 | void nsCSSFrameConstructor::ConstructScrollableBlockWithScrollContainer( |
| 4341 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 4342 | nsContainerFrame* aParentFrame, const nsStyleDisplay* aDisplay, |
| 4343 | nsFrameList& aFrameList, nsContainerFrame*& aNewFrame) { |
| 4344 | nsIContent* const content = aItem.mContent; |
| 4345 | ComputedStyle* const computedStyle = aItem.mComputedStyle; |
| 4346 | MOZ_ASSERT_IF(aNewFrame, aNewFrame->IsScrollContainerOrSubclass())do { if (aNewFrame) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(aNewFrame->IsScrollContainerOrSubclass())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNewFrame->IsScrollContainerOrSubclass()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNewFrame->IsScrollContainerOrSubclass()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4346); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aNewFrame->IsScrollContainerOrSubclass()" ")"); do { MOZ_CrashSequence(__null, 4346); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 4347 | |
| 4348 | RefPtr<ComputedStyle> scrolledContentStyle = |
| 4349 | BeginBuildingScrollContainerFrame( |
| 4350 | aState, content, computedStyle, |
| 4351 | aState.GetGeometricParent(*aDisplay, aParentFrame), false, aNewFrame); |
| 4352 | |
| 4353 | // Create our block frame |
| 4354 | // pass a temporary stylecontext, the correct one will be set later |
| 4355 | nsContainerFrame* scrolledFrame = NS_NewBlockFrame(mPresShell, computedStyle); |
| 4356 | |
| 4357 | // Make sure to AddChild before we call ConstructBlock so that we |
| 4358 | // end up before our descendants in fixed-pos lists as needed. |
| 4359 | aState.AddChild(aNewFrame, aFrameList, content, aParentFrame); |
| 4360 | |
| 4361 | nsFrameList blockList; |
| 4362 | ConstructBlock(aState, content, aNewFrame, aNewFrame, scrolledContentStyle, |
| 4363 | &scrolledFrame, blockList, |
| 4364 | aNewFrame->IsAbsPosContainingBlock() ? aNewFrame : nullptr); |
| 4365 | |
| 4366 | MOZ_ASSERT(blockList.OnlyChild() == scrolledFrame,do { static_assert( mozilla::detail::AssertionConditionType< decltype(blockList.OnlyChild() == scrolledFrame)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(blockList.OnlyChild() == scrolledFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("blockList.OnlyChild() == scrolledFrame" " (" "Scrollframe's frameList should be exactly the scrolled frame!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 4367 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "blockList.OnlyChild() == scrolledFrame" ") (" "Scrollframe's frameList should be exactly the scrolled frame!" ")"); do { MOZ_CrashSequence(__null, 4367); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4367 | "Scrollframe's frameList should be exactly the scrolled frame!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(blockList.OnlyChild() == scrolledFrame)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(blockList.OnlyChild() == scrolledFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("blockList.OnlyChild() == scrolledFrame" " (" "Scrollframe's frameList should be exactly the scrolled frame!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 4367 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "blockList.OnlyChild() == scrolledFrame" ") (" "Scrollframe's frameList should be exactly the scrolled frame!" ")"); do { MOZ_CrashSequence(__null, 4367); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4368 | FinishBuildingScrollContainerFrame(aNewFrame, scrolledFrame); |
| 4369 | } |
| 4370 | |
| 4371 | nsIFrame* nsCSSFrameConstructor::ConstructNonScrollableBlock( |
| 4372 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 4373 | nsContainerFrame* aParentFrame, const nsStyleDisplay* aDisplay, |
| 4374 | nsFrameList& aFrameList) { |
| 4375 | ComputedStyle* const computedStyle = aItem.mComputedStyle; |
| 4376 | nsContainerFrame* newFrame = NS_NewBlockFrame(mPresShell, computedStyle); |
| 4377 | ConstructBlock(aState, aItem.mContent, |
| 4378 | aState.GetGeometricParent(*aDisplay, aParentFrame), |
| 4379 | aParentFrame, computedStyle, &newFrame, aFrameList, |
| 4380 | newFrame->IsAbsPosContainingBlock() ? newFrame : nullptr); |
| 4381 | return newFrame; |
| 4382 | } |
| 4383 | |
| 4384 | void nsCSSFrameConstructor::InitAndRestoreFrame( |
| 4385 | const nsFrameConstructorState& aState, nsIContent* aContent, |
| 4386 | nsContainerFrame* aParentFrame, nsIFrame* aNewFrame, |
| 4387 | AllowCounters aAllowCounters) { |
| 4388 | MOZ_ASSERT(aNewFrame, "Null frame cannot be initialized")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNewFrame" " (" "Null frame cannot be initialized" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 4388 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNewFrame" ") (" "Null frame cannot be initialized" ")"); do { MOZ_CrashSequence(__null, 4388); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4389 | |
| 4390 | // Initialize the frame |
| 4391 | aNewFrame->Init(aContent, aParentFrame, nullptr); |
| 4392 | aNewFrame->AddStateBits(aState.mAdditionalStateBits); |
| 4393 | |
| 4394 | if (aAllowCounters == AllowCounters::Yes && !aState.mCreatingExtraFrames && |
| 4395 | mContainStyleScopeManager.AddCounterChanges(aNewFrame)) { |
| 4396 | CountersDirty(); |
| 4397 | } |
| 4398 | } |
| 4399 | |
| 4400 | already_AddRefed<ComputedStyle> nsCSSFrameConstructor::ResolveComputedStyle( |
| 4401 | nsIContent* aContent) { |
| 4402 | if (auto* element = Element::FromNode(aContent)) { |
| 4403 | return ServoStyleSet::ResolveServoStyle(*element); |
| 4404 | } |
| 4405 | |
| 4406 | MOZ_ASSERT(aContent->IsText(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContent->IsText())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContent->IsText()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("aContent->IsText()" " (" "shouldn't waste time creating ComputedStyles for " "comments and processing instructions" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 4408 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContent->IsText()" ") (" "shouldn't waste time creating ComputedStyles for " "comments and processing instructions" ")"); do { MOZ_CrashSequence(__null, 4408); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4407 | "shouldn't waste time creating ComputedStyles for "do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContent->IsText())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContent->IsText()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("aContent->IsText()" " (" "shouldn't waste time creating ComputedStyles for " "comments and processing instructions" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 4408 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContent->IsText()" ") (" "shouldn't waste time creating ComputedStyles for " "comments and processing instructions" ")"); do { MOZ_CrashSequence(__null, 4408); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4408 | "comments and processing instructions")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContent->IsText())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContent->IsText()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("aContent->IsText()" " (" "shouldn't waste time creating ComputedStyles for " "comments and processing instructions" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 4408 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContent->IsText()" ") (" "shouldn't waste time creating ComputedStyles for " "comments and processing instructions" ")"); do { MOZ_CrashSequence(__null, 4408); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4409 | |
| 4410 | Element* parent = aContent->GetFlattenedTreeParentElement(); |
| 4411 | MOZ_ASSERT(parent, "Text out of the flattened tree?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(parent)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(parent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("parent" " (" "Text out of the flattened tree?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 4411 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "parent" ") (" "Text out of the flattened tree?" ")"); do { MOZ_CrashSequence(__null, 4411); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4412 | |
| 4413 | // FIXME(emilio): The const_cast is unfortunate, but it's not worse than what |
| 4414 | // we did before. |
| 4415 | // |
| 4416 | // We could use ResolveServoStyle, but that would involve extra unnecessary |
| 4417 | // refcount traffic... |
| 4418 | auto* parentStyle = |
| 4419 | const_cast<ComputedStyle*>(Servo_Element_GetMaybeOutOfDateStyle(parent)); |
| 4420 | MOZ_ASSERT(parentStyle,do { static_assert( mozilla::detail::AssertionConditionType< decltype(parentStyle)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(parentStyle))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("parentStyle" " (" "How are we inserting text frames in an unstyled element?" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4421); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "parentStyle" ") (" "How are we inserting text frames in an unstyled element?" ")"); do { MOZ_CrashSequence(__null, 4421); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4421 | "How are we inserting text frames in an unstyled element?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(parentStyle)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(parentStyle))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("parentStyle" " (" "How are we inserting text frames in an unstyled element?" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4421); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "parentStyle" ") (" "How are we inserting text frames in an unstyled element?" ")"); do { MOZ_CrashSequence(__null, 4421); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4422 | return mPresShell->StyleSet()->ResolveStyleForText(aContent, parentStyle); |
| 4423 | } |
| 4424 | |
| 4425 | // MathML Mod - RBS |
| 4426 | void nsCSSFrameConstructor::FlushAccumulatedBlock( |
| 4427 | nsFrameConstructorState& aState, nsIContent* aContent, |
| 4428 | nsContainerFrame* aParentFrame, nsFrameList& aBlockList, |
| 4429 | nsFrameList& aNewList) { |
| 4430 | if (aBlockList.IsEmpty()) { |
| 4431 | // Nothing to do |
| 4432 | return; |
| 4433 | } |
| 4434 | |
| 4435 | auto anonPseudo = PseudoStyleType::MozMathmlAnonymousBlock; |
| 4436 | |
| 4437 | ComputedStyle* parentContext = |
| 4438 | nsIFrame::CorrectStyleParentFrame(aParentFrame, anonPseudo)->Style(); |
| 4439 | ServoStyleSet* styleSet = mPresShell->StyleSet(); |
| 4440 | RefPtr<ComputedStyle> blockContext = |
| 4441 | styleSet->ResolveInheritingAnonymousBoxStyle(anonPseudo, parentContext); |
| 4442 | |
| 4443 | // then, create a block frame that will wrap the child frames. Make it a |
| 4444 | // MathML frame so that Get(Absolute/Float)ContainingBlockFor know that this |
| 4445 | // is not a suitable block. |
| 4446 | nsContainerFrame* blockFrame = |
| 4447 | NS_NewMathMLmathBlockFrame(mPresShell, blockContext); |
| 4448 | |
| 4449 | InitAndRestoreFrame(aState, aContent, aParentFrame, blockFrame); |
| 4450 | ReparentFrames(this, blockFrame, aBlockList, false); |
| 4451 | // We have to walk over aBlockList before we hand it over to blockFrame. |
| 4452 | for (nsIFrame* f : aBlockList) { |
| 4453 | f->SetParentIsWrapperAnonBox(); |
| 4454 | } |
| 4455 | // abs-pos and floats are disabled in MathML children so we don't have to |
| 4456 | // worry about messing up those. |
| 4457 | blockFrame->SetInitialChildList(FrameChildListID::Principal, |
| 4458 | std::move(aBlockList)); |
| 4459 | aNewList.AppendFrame(nullptr, blockFrame); |
| 4460 | } |
| 4461 | |
| 4462 | // Only <math> elements can be floated or positioned. All other MathML |
| 4463 | // should be in-flow. |
| 4464 | #define MATHML_DATA(_func)FrameConstructionData { _func, 0x8 | 0x10 | 0x20 } \ |
| 4465 | FrameConstructionData { \ |
| 4466 | _func, FCDATA_DISALLOW_OUT_OF_FLOW0x8 | FCDATA_FORCE_NULL_ABSPOS_CONTAINER0x10 | \ |
| 4467 | FCDATA_WRAP_KIDS_IN_BLOCKS0x20 \ |
| 4468 | } |
| 4469 | |
| 4470 | #define SIMPLE_MATHML_CREATE(_tag, _func){nsGkAtoms::_tag, FrameConstructionData { _func, 0x8 | 0x10 | 0x20 }} {nsGkAtoms::_tag, MATHML_DATA(_func)FrameConstructionData { _func, 0x8 | 0x10 | 0x20 }} |
| 4471 | |
| 4472 | /* static */ |
| 4473 | const nsCSSFrameConstructor::FrameConstructionData* |
| 4474 | nsCSSFrameConstructor::FindMathMLData(const Element& aElement, |
| 4475 | ComputedStyle& aStyle) { |
| 4476 | MOZ_ASSERT(aElement.IsMathMLElement())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aElement.IsMathMLElement())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aElement.IsMathMLElement())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aElement.IsMathMLElement()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4476); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aElement.IsMathMLElement()" ")"); do { MOZ_CrashSequence (__null, 4476); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 4477 | |
| 4478 | nsAtom* tag = aElement.NodeInfo()->NameAtom(); |
| 4479 | |
| 4480 | // Handle <math> specially, because it sometimes produces inlines |
| 4481 | if (tag == nsGkAtoms::math) { |
| 4482 | // The IsBlockOutsideStyle() check must match what |
| 4483 | // specified::Display::equivalent_block_display is checking for |
| 4484 | // already-block-outside things. Though the behavior here for the |
| 4485 | // display:table case is pretty weird... |
| 4486 | if (aStyle.StyleDisplay()->IsBlockOutsideStyle()) { |
| 4487 | static constexpr FrameConstructionData sBlockMathData( |
| 4488 | ToCreationFunc(NS_NewMathMLmathBlockFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewMathMLmathBlockFrame(aPs, aStyle); }, |
| 4489 | FCDATA_FORCE_NULL_ABSPOS_CONTAINER0x10 | FCDATA_WRAP_KIDS_IN_BLOCKS0x20); |
| 4490 | return &sBlockMathData; |
| 4491 | } |
| 4492 | |
| 4493 | static constexpr FrameConstructionData sInlineMathData( |
| 4494 | ToCreationFunc(NS_NewMathMLmathInlineFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewMathMLmathInlineFrame(aPs, aStyle); }, |
| 4495 | FCDATA_FORCE_NULL_ABSPOS_CONTAINER0x10 | FCDATA_IS_LINE_PARTICIPANT0x2000 | |
| 4496 | FCDATA_WRAP_KIDS_IN_BLOCKS0x20); |
| 4497 | return &sInlineMathData; |
| 4498 | } |
| 4499 | |
| 4500 | // Special case for elements with a display value other than none |
| 4501 | // specified in mathml.css that are not handled by this function. |
| 4502 | // These shouldn't be rendered as an mrow. |
| 4503 | if (tag == nsGkAtoms::mtable || tag == nsGkAtoms::mtr || |
| 4504 | tag == nsGkAtoms::mlabeledtr || tag == nsGkAtoms::mtd) { |
| 4505 | return nullptr; |
| 4506 | } |
| 4507 | |
| 4508 | static constexpr FrameConstructionDataByTag sMathMLData[] = { |
| 4509 | SIMPLE_MATHML_CREATE(annotation, NS_NewMathMLTokenFrame){nsGkAtoms::annotation, FrameConstructionData { NS_NewMathMLTokenFrame , 0x8 | 0x10 | 0x20 }}, |
| 4510 | SIMPLE_MATHML_CREATE(annotation_xml, NS_NewMathMLmrowFrame){nsGkAtoms::annotation_xml, FrameConstructionData { NS_NewMathMLmrowFrame , 0x8 | 0x10 | 0x20 }}, |
| 4511 | SIMPLE_MATHML_CREATE(mi, NS_NewMathMLTokenFrame){nsGkAtoms::mi, FrameConstructionData { NS_NewMathMLTokenFrame , 0x8 | 0x10 | 0x20 }}, |
| 4512 | SIMPLE_MATHML_CREATE(mn, NS_NewMathMLTokenFrame){nsGkAtoms::mn, FrameConstructionData { NS_NewMathMLTokenFrame , 0x8 | 0x10 | 0x20 }}, |
| 4513 | SIMPLE_MATHML_CREATE(ms, NS_NewMathMLTokenFrame){nsGkAtoms::ms, FrameConstructionData { NS_NewMathMLTokenFrame , 0x8 | 0x10 | 0x20 }}, |
| 4514 | SIMPLE_MATHML_CREATE(mtext, NS_NewMathMLTokenFrame){nsGkAtoms::mtext, FrameConstructionData { NS_NewMathMLTokenFrame , 0x8 | 0x10 | 0x20 }}, |
| 4515 | SIMPLE_MATHML_CREATE(mo, NS_NewMathMLmoFrame){nsGkAtoms::mo, FrameConstructionData { NS_NewMathMLmoFrame, 0x8 | 0x10 | 0x20 }}, |
| 4516 | SIMPLE_MATHML_CREATE(mfrac, NS_NewMathMLmfracFrame){nsGkAtoms::mfrac, FrameConstructionData { NS_NewMathMLmfracFrame , 0x8 | 0x10 | 0x20 }}, |
| 4517 | SIMPLE_MATHML_CREATE(msup, NS_NewMathMLmmultiscriptsFrame){nsGkAtoms::msup, FrameConstructionData { NS_NewMathMLmmultiscriptsFrame , 0x8 | 0x10 | 0x20 }}, |
| 4518 | SIMPLE_MATHML_CREATE(msub, NS_NewMathMLmmultiscriptsFrame){nsGkAtoms::msub, FrameConstructionData { NS_NewMathMLmmultiscriptsFrame , 0x8 | 0x10 | 0x20 }}, |
| 4519 | SIMPLE_MATHML_CREATE(msubsup, NS_NewMathMLmmultiscriptsFrame){nsGkAtoms::msubsup, FrameConstructionData { NS_NewMathMLmmultiscriptsFrame , 0x8 | 0x10 | 0x20 }}, |
| 4520 | SIMPLE_MATHML_CREATE(munder, NS_NewMathMLmunderoverFrame){nsGkAtoms::munder, FrameConstructionData { NS_NewMathMLmunderoverFrame , 0x8 | 0x10 | 0x20 }}, |
| 4521 | SIMPLE_MATHML_CREATE(mover, NS_NewMathMLmunderoverFrame){nsGkAtoms::mover, FrameConstructionData { NS_NewMathMLmunderoverFrame , 0x8 | 0x10 | 0x20 }}, |
| 4522 | SIMPLE_MATHML_CREATE(munderover, NS_NewMathMLmunderoverFrame){nsGkAtoms::munderover, FrameConstructionData { NS_NewMathMLmunderoverFrame , 0x8 | 0x10 | 0x20 }}, |
| 4523 | SIMPLE_MATHML_CREATE(mphantom, NS_NewMathMLmrowFrame){nsGkAtoms::mphantom, FrameConstructionData { NS_NewMathMLmrowFrame , 0x8 | 0x10 | 0x20 }}, |
| 4524 | SIMPLE_MATHML_CREATE(mpadded, NS_NewMathMLmpaddedFrame){nsGkAtoms::mpadded, FrameConstructionData { NS_NewMathMLmpaddedFrame , 0x8 | 0x10 | 0x20 }}, |
| 4525 | SIMPLE_MATHML_CREATE(mspace, NS_NewMathMLmspaceFrame){nsGkAtoms::mspace, FrameConstructionData { NS_NewMathMLmspaceFrame , 0x8 | 0x10 | 0x20 }}, |
| 4526 | SIMPLE_MATHML_CREATE(none, NS_NewMathMLmrowFrame){nsGkAtoms::none, FrameConstructionData { NS_NewMathMLmrowFrame , 0x8 | 0x10 | 0x20 }}, |
| 4527 | SIMPLE_MATHML_CREATE(mprescripts, NS_NewMathMLmrowFrame){nsGkAtoms::mprescripts, FrameConstructionData { NS_NewMathMLmrowFrame , 0x8 | 0x10 | 0x20 }}, |
| 4528 | SIMPLE_MATHML_CREATE(mfenced, NS_NewMathMLmrowFrame){nsGkAtoms::mfenced, FrameConstructionData { NS_NewMathMLmrowFrame , 0x8 | 0x10 | 0x20 }}, |
| 4529 | SIMPLE_MATHML_CREATE(mmultiscripts, NS_NewMathMLmmultiscriptsFrame){nsGkAtoms::mmultiscripts, FrameConstructionData { NS_NewMathMLmmultiscriptsFrame , 0x8 | 0x10 | 0x20 }}, |
| 4530 | SIMPLE_MATHML_CREATE(mstyle, NS_NewMathMLmrowFrame){nsGkAtoms::mstyle, FrameConstructionData { NS_NewMathMLmrowFrame , 0x8 | 0x10 | 0x20 }}, |
| 4531 | SIMPLE_MATHML_CREATE(msqrt, NS_NewMathMLmrootFrame){nsGkAtoms::msqrt, FrameConstructionData { NS_NewMathMLmrootFrame , 0x8 | 0x10 | 0x20 }}, |
| 4532 | SIMPLE_MATHML_CREATE(mroot, NS_NewMathMLmrootFrame){nsGkAtoms::mroot, FrameConstructionData { NS_NewMathMLmrootFrame , 0x8 | 0x10 | 0x20 }}, |
| 4533 | SIMPLE_MATHML_CREATE(maction, NS_NewMathMLmrowFrame){nsGkAtoms::maction, FrameConstructionData { NS_NewMathMLmrowFrame , 0x8 | 0x10 | 0x20 }}, |
| 4534 | SIMPLE_MATHML_CREATE(mrow, NS_NewMathMLmrowFrame){nsGkAtoms::mrow, FrameConstructionData { NS_NewMathMLmrowFrame , 0x8 | 0x10 | 0x20 }}, |
| 4535 | SIMPLE_MATHML_CREATE(merror, NS_NewMathMLmrowFrame){nsGkAtoms::merror, FrameConstructionData { NS_NewMathMLmrowFrame , 0x8 | 0x10 | 0x20 }}, |
| 4536 | SIMPLE_MATHML_CREATE(menclose, NS_NewMathMLmencloseFrame){nsGkAtoms::menclose, FrameConstructionData { NS_NewMathMLmencloseFrame , 0x8 | 0x10 | 0x20 }}, |
| 4537 | SIMPLE_MATHML_CREATE(semantics, NS_NewMathMLmrowFrame){nsGkAtoms::semantics, FrameConstructionData { NS_NewMathMLmrowFrame , 0x8 | 0x10 | 0x20 }}}; |
| 4538 | |
| 4539 | if (const auto* data = FindDataByTag(aElement, aStyle, sMathMLData, |
| 4540 | std::size(sMathMLData))) { |
| 4541 | return data; |
| 4542 | } |
| 4543 | // Unknown MathML elements render as an mrow, see: |
| 4544 | // https://w3c.github.io/mathml-core/#ref-for-dfn-unknown-mathml-element-2 |
| 4545 | static constexpr FrameConstructionData sMrowData = |
| 4546 | MATHML_DATA(NS_NewMathMLmrowFrame)FrameConstructionData { NS_NewMathMLmrowFrame, 0x8 | 0x10 | 0x20 }; |
| 4547 | return &sMrowData; |
| 4548 | } |
| 4549 | |
| 4550 | nsContainerFrame* nsCSSFrameConstructor::ConstructSVGFrameWithAnonymousChild( |
| 4551 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 4552 | nsContainerFrame* aParentFrame, nsFrameList& aFrameList, |
| 4553 | ContainerFrameCreationFunc aConstructor, |
| 4554 | ContainerFrameCreationFunc aInnerConstructor, PseudoStyleType aInnerPseudo, |
| 4555 | bool aCandidateRootFrame) { |
| 4556 | nsIContent* const content = aItem.mContent; |
| 4557 | ComputedStyle* const computedStyle = aItem.mComputedStyle; |
| 4558 | |
| 4559 | // Create the outer frame: |
| 4560 | nsContainerFrame* newFrame = aConstructor(mPresShell, computedStyle); |
| 4561 | |
| 4562 | InitAndRestoreFrame(aState, content, |
| 4563 | aCandidateRootFrame |
| 4564 | ? aState.GetGeometricParent( |
| 4565 | *computedStyle->StyleDisplay(), aParentFrame) |
| 4566 | : aParentFrame, |
| 4567 | newFrame); |
| 4568 | newFrame->AddStateBits(NS_FRAME_OWNS_ANON_BOXES); |
| 4569 | |
| 4570 | // Create the pseudo SC for the anonymous wrapper child as a child of the SC: |
| 4571 | RefPtr<ComputedStyle> scForAnon = |
| 4572 | mPresShell->StyleSet()->ResolveInheritingAnonymousBoxStyle(aInnerPseudo, |
| 4573 | computedStyle); |
| 4574 | |
| 4575 | // Create the anonymous inner wrapper frame |
| 4576 | nsContainerFrame* innerFrame = aInnerConstructor(mPresShell, scForAnon); |
| 4577 | |
| 4578 | InitAndRestoreFrame(aState, content, newFrame, innerFrame); |
| 4579 | |
| 4580 | // Put the newly created frames into the right child list |
| 4581 | SetInitialSingleChild(newFrame, innerFrame); |
| 4582 | |
| 4583 | aState.AddChild(newFrame, aFrameList, content, aParentFrame, |
| 4584 | aCandidateRootFrame, aCandidateRootFrame); |
| 4585 | |
| 4586 | if (!mRootElementFrame && aCandidateRootFrame) { |
| 4587 | mRootElementFrame = newFrame; |
| 4588 | } |
| 4589 | |
| 4590 | nsFrameConstructorSaveState floatSaveState; |
| 4591 | aState.MaybePushFloatContainingBlock(innerFrame, floatSaveState); |
| 4592 | |
| 4593 | nsFrameList childList; |
| 4594 | |
| 4595 | // Process children |
| 4596 | if (aItem.mFCData->mBits & FCDATA_USE_CHILD_ITEMS0x10000) { |
| 4597 | ConstructFramesFromItemList( |
| 4598 | aState, aItem.mChildItems, innerFrame, |
| 4599 | aItem.mFCData->mBits & FCDATA_IS_WRAPPER_ANON_BOX0x400000, childList); |
| 4600 | } else { |
| 4601 | ProcessChildren(aState, content, computedStyle, innerFrame, |
| 4602 | /* aCanHaveGeneratedContent = */ false, childList, false); |
| 4603 | } |
| 4604 | |
| 4605 | // Set the inner wrapper frame's initial primary list |
| 4606 | innerFrame->SetInitialChildList(FrameChildListID::Principal, |
| 4607 | std::move(childList)); |
| 4608 | |
| 4609 | return newFrame; |
| 4610 | } |
| 4611 | |
| 4612 | nsIFrame* nsCSSFrameConstructor::ConstructOuterSVG( |
| 4613 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 4614 | nsContainerFrame* aParentFrame, const nsStyleDisplay* aDisplay, |
| 4615 | nsFrameList& aFrameList) { |
| 4616 | return ConstructSVGFrameWithAnonymousChild( |
| 4617 | aState, aItem, aParentFrame, aFrameList, NS_NewSVGOuterSVGFrame, |
| 4618 | NS_NewSVGOuterSVGAnonChildFrame, PseudoStyleType::MozSvgOuterSvgAnonChild, |
| 4619 | true); |
| 4620 | } |
| 4621 | |
| 4622 | nsIFrame* nsCSSFrameConstructor::ConstructMarker( |
| 4623 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 4624 | nsContainerFrame* aParentFrame, const nsStyleDisplay* aDisplay, |
| 4625 | nsFrameList& aFrameList) { |
| 4626 | return ConstructSVGFrameWithAnonymousChild( |
| 4627 | aState, aItem, aParentFrame, aFrameList, NS_NewSVGMarkerFrame, |
| 4628 | NS_NewSVGMarkerAnonChildFrame, PseudoStyleType::MozSvgMarkerAnonChild, |
| 4629 | false); |
| 4630 | } |
| 4631 | |
| 4632 | // Only outer <svg> elements can be floated or positioned. All other SVG |
| 4633 | // should be in-flow. |
| 4634 | #define SIMPLE_SVG_FCDATA(_func)FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle ) -> nsIFrame* { return _func(aPs, aStyle); }, 0x8 | 0x200 | 0x400) \ |
| 4635 | FrameConstructionData(ToCreationFunc(_func)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return _func(aPs, aStyle); }, \ |
| 4636 | FCDATA_DISALLOW_OUT_OF_FLOW0x8 | \ |
| 4637 | FCDATA_SKIP_ABSPOS_PUSH0x200 | \ |
| 4638 | FCDATA_DISALLOW_GENERATED_CONTENT0x400) |
| 4639 | #define SIMPLE_SVG_CREATE(_tag, _func){nsGkAtoms::_tag, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return _func(aPs, aStyle); }, 0x8 | 0x200 | 0x400)} \ |
| 4640 | {nsGkAtoms::_tag, SIMPLE_SVG_FCDATA(_func)FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle ) -> nsIFrame* { return _func(aPs, aStyle); }, 0x8 | 0x200 | 0x400)} |
| 4641 | |
| 4642 | /* static */ |
| 4643 | const nsCSSFrameConstructor::FrameConstructionData* |
| 4644 | nsCSSFrameConstructor::FindSVGData(const Element& aElement, |
| 4645 | nsIFrame* aParentFrame, |
| 4646 | bool aIsWithinSVGText, |
| 4647 | bool aAllowsTextPathChild, |
| 4648 | ComputedStyle& aStyle) { |
| 4649 | MOZ_ASSERT(aElement.IsSVGElement())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aElement.IsSVGElement())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aElement.IsSVGElement()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aElement.IsSVGElement()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 4649); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aElement.IsSVGElement()" ")"); do { MOZ_CrashSequence (__null, 4649); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 4650 | |
| 4651 | static constexpr FrameConstructionData sSuppressData = SUPPRESS_FCDATA()FrameConstructionData(nullptr, 0x40); |
| 4652 | static constexpr FrameConstructionData sContainerData = |
| 4653 | SIMPLE_SVG_FCDATA(NS_NewSVGContainerFrame)FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle ) -> nsIFrame* { return NS_NewSVGContainerFrame(aPs, aStyle ); }, 0x8 | 0x200 | 0x400); |
| 4654 | |
| 4655 | bool parentIsSVG = aIsWithinSVGText; |
| 4656 | nsIContent* parentContent = |
| 4657 | aParentFrame ? aParentFrame->GetContent() : nullptr; |
| 4658 | |
| 4659 | nsAtom* tag = aElement.NodeInfo()->NameAtom(); |
| 4660 | |
| 4661 | if (aElement.OwnerDoc()->IsSVGGlyphsDocument()) { |
| 4662 | // SVG elements that are explicitly not supported in svg-glyphs documents. |
| 4663 | // (Partially applies the restrictions mentioned at |
| 4664 | // https://learn.microsoft.com/en-us/typography/opentype/spec/svg#svg-capability-requirements-and-restrictions |
| 4665 | if (tag == nsGkAtoms::text || tag == nsGkAtoms::tspan || |
| 4666 | tag == nsGkAtoms::textPath || tag == nsGkAtoms::a || |
| 4667 | tag == nsGkAtoms::foreignObject || tag == nsGkAtoms::svgSwitch || |
| 4668 | tag == nsGkAtoms::view) { |
| 4669 | return &sSuppressData; |
| 4670 | } |
| 4671 | } |
| 4672 | |
| 4673 | // XXXbz should this really be based on the tag of the parent frame's content? |
| 4674 | // Should it not be based on the type of the parent frame (e.g. whether it's |
| 4675 | // an SVG frame)? |
| 4676 | if (parentContent) { |
| 4677 | // It's not clear whether the SVG spec intends to allow any SVG |
| 4678 | // content within svg:foreignObject at all (SVG 1.1, section |
| 4679 | // 23.2), but if it does, it better be svg:svg. So given that |
| 4680 | // we're allowing it, treat it as a non-SVG parent. |
| 4681 | parentIsSVG = |
| 4682 | parentContent->IsSVGElement() && |
| 4683 | parentContent->NodeInfo()->NameAtom() != nsGkAtoms::foreignObject; |
| 4684 | } |
| 4685 | |
| 4686 | if ((tag != nsGkAtoms::svg && !parentIsSVG) || |
| 4687 | (tag == nsGkAtoms::desc || tag == nsGkAtoms::title || |
| 4688 | tag == nsGkAtoms::metadata)) { |
| 4689 | // Sections 5.1 and G.4 of SVG 1.1 say that SVG elements other than |
| 4690 | // svg:svg not contained within svg:svg are incorrect, although they |
| 4691 | // don't seem to specify error handling. Ignore them, since many of |
| 4692 | // our frame classes can't deal. It *may* be that the document |
| 4693 | // should at that point be considered in error according to F.2, but |
| 4694 | // it's hard to tell. |
| 4695 | // |
| 4696 | // We don't currently handle any UI for desc/title/metadata |
| 4697 | return &sSuppressData; |
| 4698 | } |
| 4699 | |
| 4700 | // We don't need frames for animation elements |
| 4701 | if (aElement.IsSVGAnimationElement()) { |
| 4702 | return &sSuppressData; |
| 4703 | } |
| 4704 | |
| 4705 | if (tag == nsGkAtoms::svg && !parentIsSVG) { |
| 4706 | // We need outer <svg> elements to have an SVGOuterSVGFrame regardless |
| 4707 | // of whether they fail conditional processing attributes, since various |
| 4708 | // SVG frames assume that one exists. We handle the non-rendering |
| 4709 | // of failing outer <svg> element contents like <switch> statements, |
| 4710 | // and do the PassesConditionalProcessingTests call in |
| 4711 | // SVGOuterSVGFrame::Init. |
| 4712 | static constexpr FrameConstructionData sOuterSVGData( |
| 4713 | &nsCSSFrameConstructor::ConstructOuterSVG); |
| 4714 | return &sOuterSVGData; |
| 4715 | } |
| 4716 | |
| 4717 | if (tag == nsGkAtoms::marker) { |
| 4718 | static constexpr FrameConstructionData sMarkerSVGData( |
| 4719 | &nsCSSFrameConstructor::ConstructMarker); |
| 4720 | return &sMarkerSVGData; |
| 4721 | } |
| 4722 | |
| 4723 | if (!aElement.PassesConditionalProcessingTests()) { |
| 4724 | // Elements with failing conditional processing attributes never get |
| 4725 | // rendered. Note that this is not where we select which frame in a |
| 4726 | // <switch> to render! That happens in SVGSwitchFrame::PaintSVG. |
| 4727 | if (aIsWithinSVGText) { |
| 4728 | // SVGTextFrame doesn't handle conditional processing attributes, |
| 4729 | // so don't create frames for descendants of <text> with failing |
| 4730 | // attributes. We need frames not to be created so that text layout |
| 4731 | // is correct. |
| 4732 | return &sSuppressData; |
| 4733 | } |
| 4734 | // If we're not inside <text>, create an SVGContainerFrame (which is a |
| 4735 | // frame that doesn't render) so that paint servers can still be referenced, |
| 4736 | // even if they live inside an element with failing conditional processing |
| 4737 | // attributes. |
| 4738 | return &sContainerData; |
| 4739 | } |
| 4740 | |
| 4741 | // Ensure that a stop frame is a child of a gradient and that gradients |
| 4742 | // can only have stop children. |
| 4743 | bool parentIsGradient = aParentFrame && static_cast<SVGGradientFrame*>( |
| 4744 | do_QueryFrame(aParentFrame)); |
| 4745 | bool stop = (tag == nsGkAtoms::stop); |
| 4746 | if ((parentIsGradient && !stop) || (!parentIsGradient && stop)) { |
| 4747 | return &sSuppressData; |
| 4748 | } |
| 4749 | |
| 4750 | // Prevent bad frame types being children of filters or parents of filter |
| 4751 | // primitives. If aParentFrame is null, we know that the frame that will |
| 4752 | // be created will be an nsInlineFrame, so it can never be a filter. |
| 4753 | bool parentIsFilter = aParentFrame && aParentFrame->IsSVGFilterFrame(); |
| 4754 | if ((parentIsFilter && !aElement.IsSVGFilterPrimitiveElement()) || |
| 4755 | (!parentIsFilter && aElement.IsSVGFilterPrimitiveElement())) { |
| 4756 | return &sSuppressData; |
| 4757 | } |
| 4758 | |
| 4759 | // Prevent bad frame types being children of filter primitives or parents of |
| 4760 | // filter primitive children. If aParentFrame is null, we know that the frame |
| 4761 | // that will be created will be an nsInlineFrame, so it can never be a filter |
| 4762 | // primitive. |
| 4763 | bool parentIsFEContainerFrame = |
| 4764 | aParentFrame && aParentFrame->IsSVGFEContainerFrame(); |
| 4765 | if ((parentIsFEContainerFrame && |
| 4766 | !aElement.IsSVGFilterPrimitiveChildElement()) || |
| 4767 | (!parentIsFEContainerFrame && |
| 4768 | aElement.IsSVGFilterPrimitiveChildElement())) { |
| 4769 | return &sSuppressData; |
| 4770 | } |
| 4771 | |
| 4772 | // Special cases for text/tspan/textPath, because the kind of frame |
| 4773 | // they get depends on the parent frame. We ignore 'a' elements when |
| 4774 | // determining the parent, however. |
| 4775 | if (aIsWithinSVGText) { |
| 4776 | // If aIsWithinSVGText is true, then we know that the "SVG text uses |
| 4777 | // CSS frames" pref was true when this SVG fragment was first constructed. |
| 4778 | // |
| 4779 | // FIXME(bug 1588477) Don't render stuff in display: contents / Shadow DOM |
| 4780 | // subtrees, because TextCorrespondenceRecorder in the SVG text code doesn't |
| 4781 | // really know how to deal with it. This kinda sucks. :( |
| 4782 | if (aParentFrame && aParentFrame->GetContent() != aElement.GetParent()) { |
| 4783 | return &sSuppressData; |
| 4784 | } |
| 4785 | |
| 4786 | // We don't use ConstructInline because we want different behavior |
| 4787 | // for generated content. |
| 4788 | static constexpr FrameConstructionData sTSpanData( |
| 4789 | ToCreationFunc(NS_NewInlineFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewInlineFrame(aPs, aStyle); }, |
| 4790 | FCDATA_DISALLOW_OUT_OF_FLOW0x8 | FCDATA_SKIP_ABSPOS_PUSH0x200 | |
| 4791 | FCDATA_DISALLOW_GENERATED_CONTENT0x400 | FCDATA_IS_LINE_PARTICIPANT0x2000 | |
| 4792 | FCDATA_IS_INLINE0x1000 | FCDATA_USE_CHILD_ITEMS0x10000); |
| 4793 | if (tag == nsGkAtoms::textPath) { |
| 4794 | if (aAllowsTextPathChild) { |
| 4795 | return &sTSpanData; |
| 4796 | } |
| 4797 | } else if (tag == nsGkAtoms::tspan || tag == nsGkAtoms::a) { |
| 4798 | return &sTSpanData; |
| 4799 | } |
| 4800 | return &sSuppressData; |
| 4801 | } else if (tag == nsGkAtoms::tspan || tag == nsGkAtoms::textPath) { |
| 4802 | return &sSuppressData; |
| 4803 | } |
| 4804 | |
| 4805 | static constexpr FrameConstructionDataByTag sSVGData[] = { |
| 4806 | SIMPLE_SVG_CREATE(svg, NS_NewSVGInnerSVGFrame){nsGkAtoms::svg, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGInnerSVGFrame(aPs , aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4807 | SIMPLE_SVG_CREATE(g, NS_NewSVGGFrame){nsGkAtoms::g, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGGFrame(aPs, aStyle ); }, 0x8 | 0x200 | 0x400)}, |
| 4808 | SIMPLE_SVG_CREATE(svgSwitch, NS_NewSVGSwitchFrame){nsGkAtoms::svgSwitch, FrameConstructionData([](PresShell* aPs , ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGSwitchFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4809 | SIMPLE_SVG_CREATE(symbol, NS_NewSVGSymbolFrame){nsGkAtoms::symbol, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGSymbolFrame(aPs, aStyle ); }, 0x8 | 0x200 | 0x400)}, |
| 4810 | SIMPLE_SVG_CREATE(polygon, NS_NewSVGGeometryFrame){nsGkAtoms::polygon, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGGeometryFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4811 | SIMPLE_SVG_CREATE(polyline, NS_NewSVGGeometryFrame){nsGkAtoms::polyline, FrameConstructionData([](PresShell* aPs , ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGGeometryFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4812 | SIMPLE_SVG_CREATE(circle, NS_NewSVGGeometryFrame){nsGkAtoms::circle, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGGeometryFrame(aPs , aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4813 | SIMPLE_SVG_CREATE(ellipse, NS_NewSVGGeometryFrame){nsGkAtoms::ellipse, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGGeometryFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4814 | SIMPLE_SVG_CREATE(line, NS_NewSVGGeometryFrame){nsGkAtoms::line, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGGeometryFrame(aPs , aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4815 | SIMPLE_SVG_CREATE(rect, NS_NewSVGGeometryFrame){nsGkAtoms::rect, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGGeometryFrame(aPs , aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4816 | SIMPLE_SVG_CREATE(path, NS_NewSVGGeometryFrame){nsGkAtoms::path, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGGeometryFrame(aPs , aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4817 | SIMPLE_SVG_CREATE(defs, NS_NewSVGContainerFrame){nsGkAtoms::defs, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGContainerFrame(aPs , aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4818 | {nsGkAtoms::text, |
| 4819 | {NS_NewSVGTextFrame, |
| 4820 | FCDATA_DISALLOW_OUT_OF_FLOW0x8 | FCDATA_ALLOW_BLOCK_STYLES0x8000 | |
| 4821 | FCDATA_DISALLOW_GENERATED_CONTENT0x400, |
| 4822 | PseudoStyleType::MozSvgText}}, |
| 4823 | {nsGkAtoms::foreignObject, |
| 4824 | {ToCreationFunc(NS_NewSVGForeignObjectFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGForeignObjectFrame(aPs, aStyle); }, |
| 4825 | FCDATA_DISALLOW_OUT_OF_FLOW0x8, PseudoStyleType::MozSvgForeignContent}}, |
| 4826 | SIMPLE_SVG_CREATE(a, NS_NewSVGAFrame){nsGkAtoms::a, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGAFrame(aPs, aStyle ); }, 0x8 | 0x200 | 0x400)}, |
| 4827 | SIMPLE_SVG_CREATE(linearGradient, NS_NewSVGLinearGradientFrame){nsGkAtoms::linearGradient, FrameConstructionData([](PresShell * aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGLinearGradientFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4828 | SIMPLE_SVG_CREATE(radialGradient, NS_NewSVGRadialGradientFrame){nsGkAtoms::radialGradient, FrameConstructionData([](PresShell * aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGRadialGradientFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4829 | SIMPLE_SVG_CREATE(stop, NS_NewSVGStopFrame){nsGkAtoms::stop, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGStopFrame(aPs, aStyle ); }, 0x8 | 0x200 | 0x400)}, |
| 4830 | SIMPLE_SVG_CREATE(use, NS_NewSVGUseFrame){nsGkAtoms::use, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGUseFrame(aPs, aStyle ); }, 0x8 | 0x200 | 0x400)}, |
| 4831 | SIMPLE_SVG_CREATE(view, NS_NewSVGViewFrame){nsGkAtoms::view, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGViewFrame(aPs, aStyle ); }, 0x8 | 0x200 | 0x400)}, |
| 4832 | SIMPLE_SVG_CREATE(image, NS_NewSVGImageFrame){nsGkAtoms::image, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGImageFrame(aPs, aStyle ); }, 0x8 | 0x200 | 0x400)}, |
| 4833 | SIMPLE_SVG_CREATE(clipPath, NS_NewSVGClipPathFrame){nsGkAtoms::clipPath, FrameConstructionData([](PresShell* aPs , ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGClipPathFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4834 | SIMPLE_SVG_CREATE(filter, NS_NewSVGFilterFrame){nsGkAtoms::filter, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGFilterFrame(aPs, aStyle ); }, 0x8 | 0x200 | 0x400)}, |
| 4835 | SIMPLE_SVG_CREATE(pattern, NS_NewSVGPatternFrame){nsGkAtoms::pattern, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGPatternFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4836 | SIMPLE_SVG_CREATE(mask, NS_NewSVGMaskFrame){nsGkAtoms::mask, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGMaskFrame(aPs, aStyle ); }, 0x8 | 0x200 | 0x400)}, |
| 4837 | SIMPLE_SVG_CREATE(feDistantLight, NS_NewSVGFEUnstyledLeafFrame){nsGkAtoms::feDistantLight, FrameConstructionData([](PresShell * aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFEUnstyledLeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4838 | SIMPLE_SVG_CREATE(fePointLight, NS_NewSVGFEUnstyledLeafFrame){nsGkAtoms::fePointLight, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFEUnstyledLeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4839 | SIMPLE_SVG_CREATE(feSpotLight, NS_NewSVGFEUnstyledLeafFrame){nsGkAtoms::feSpotLight, FrameConstructionData([](PresShell* aPs , ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFEUnstyledLeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4840 | SIMPLE_SVG_CREATE(feBlend, NS_NewSVGFELeafFrame){nsGkAtoms::feBlend, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFELeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4841 | SIMPLE_SVG_CREATE(feColorMatrix, NS_NewSVGFELeafFrame){nsGkAtoms::feColorMatrix, FrameConstructionData([](PresShell * aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFELeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4842 | SIMPLE_SVG_CREATE(feFuncR, NS_NewSVGFEUnstyledLeafFrame){nsGkAtoms::feFuncR, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFEUnstyledLeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4843 | SIMPLE_SVG_CREATE(feFuncG, NS_NewSVGFEUnstyledLeafFrame){nsGkAtoms::feFuncG, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFEUnstyledLeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4844 | SIMPLE_SVG_CREATE(feFuncB, NS_NewSVGFEUnstyledLeafFrame){nsGkAtoms::feFuncB, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFEUnstyledLeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4845 | SIMPLE_SVG_CREATE(feFuncA, NS_NewSVGFEUnstyledLeafFrame){nsGkAtoms::feFuncA, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFEUnstyledLeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4846 | SIMPLE_SVG_CREATE(feComposite, NS_NewSVGFELeafFrame){nsGkAtoms::feComposite, FrameConstructionData([](PresShell* aPs , ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFELeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4847 | SIMPLE_SVG_CREATE(feComponentTransfer, NS_NewSVGFEContainerFrame){nsGkAtoms::feComponentTransfer, FrameConstructionData([](PresShell * aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFEContainerFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4848 | SIMPLE_SVG_CREATE(feConvolveMatrix, NS_NewSVGFELeafFrame){nsGkAtoms::feConvolveMatrix, FrameConstructionData([](PresShell * aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFELeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4849 | SIMPLE_SVG_CREATE(feDiffuseLighting, NS_NewSVGFEContainerFrame){nsGkAtoms::feDiffuseLighting, FrameConstructionData([](PresShell * aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFEContainerFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4850 | SIMPLE_SVG_CREATE(feDisplacementMap, NS_NewSVGFELeafFrame){nsGkAtoms::feDisplacementMap, FrameConstructionData([](PresShell * aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFELeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4851 | SIMPLE_SVG_CREATE(feDropShadow, NS_NewSVGFELeafFrame){nsGkAtoms::feDropShadow, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFELeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4852 | SIMPLE_SVG_CREATE(feFlood, NS_NewSVGFELeafFrame){nsGkAtoms::feFlood, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFELeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4853 | SIMPLE_SVG_CREATE(feGaussianBlur, NS_NewSVGFELeafFrame){nsGkAtoms::feGaussianBlur, FrameConstructionData([](PresShell * aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFELeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4854 | SIMPLE_SVG_CREATE(feImage, NS_NewSVGFEImageFrame){nsGkAtoms::feImage, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFEImageFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4855 | SIMPLE_SVG_CREATE(feMerge, NS_NewSVGFEContainerFrame){nsGkAtoms::feMerge, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFEContainerFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4856 | SIMPLE_SVG_CREATE(feMergeNode, NS_NewSVGFEUnstyledLeafFrame){nsGkAtoms::feMergeNode, FrameConstructionData([](PresShell* aPs , ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFEUnstyledLeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4857 | SIMPLE_SVG_CREATE(feMorphology, NS_NewSVGFELeafFrame){nsGkAtoms::feMorphology, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFELeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4858 | SIMPLE_SVG_CREATE(feOffset, NS_NewSVGFELeafFrame){nsGkAtoms::feOffset, FrameConstructionData([](PresShell* aPs , ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFELeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4859 | SIMPLE_SVG_CREATE(feSpecularLighting, NS_NewSVGFEContainerFrame){nsGkAtoms::feSpecularLighting, FrameConstructionData([](PresShell * aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFEContainerFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}, |
| 4860 | SIMPLE_SVG_CREATE(feTile, NS_NewSVGFELeafFrame){nsGkAtoms::feTile, FrameConstructionData([](PresShell* aPs, ComputedStyle * aStyle) -> nsIFrame* { return NS_NewSVGFELeafFrame(aPs, aStyle ); }, 0x8 | 0x200 | 0x400)}, |
| 4861 | SIMPLE_SVG_CREATE(feTurbulence, NS_NewSVGFELeafFrame){nsGkAtoms::feTurbulence, FrameConstructionData([](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewSVGFELeafFrame (aPs, aStyle); }, 0x8 | 0x200 | 0x400)}}; |
| 4862 | |
| 4863 | const FrameConstructionData* data = |
| 4864 | FindDataByTag(aElement, aStyle, sSVGData, std::size(sSVGData)); |
| 4865 | |
| 4866 | if (!data) { |
| 4867 | data = &sContainerData; |
| 4868 | } |
| 4869 | |
| 4870 | return data; |
| 4871 | } |
| 4872 | |
| 4873 | void nsCSSFrameConstructor::AppendPageBreakItem( |
| 4874 | nsIContent* aContent, FrameConstructionItemList& aItems) { |
| 4875 | RefPtr<ComputedStyle> pseudoStyle = |
| 4876 | mPresShell->StyleSet()->ResolveNonInheritingAnonymousBoxStyle( |
| 4877 | PseudoStyleType::MozPageBreak); |
| 4878 | |
| 4879 | MOZ_ASSERT(pseudoStyle->StyleDisplay()->mDisplay == StyleDisplay::Block,do { static_assert( mozilla::detail::AssertionConditionType< decltype(pseudoStyle->StyleDisplay()->mDisplay == StyleDisplay ::Block)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(pseudoStyle->StyleDisplay()->mDisplay == StyleDisplay ::Block))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("pseudoStyle->StyleDisplay()->mDisplay == StyleDisplay::Block" " (" "Unexpected display" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 4880); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pseudoStyle->StyleDisplay()->mDisplay == StyleDisplay::Block" ") (" "Unexpected display" ")"); do { MOZ_CrashSequence(__null , 4880); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 4880 | "Unexpected display")do { static_assert( mozilla::detail::AssertionConditionType< decltype(pseudoStyle->StyleDisplay()->mDisplay == StyleDisplay ::Block)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(pseudoStyle->StyleDisplay()->mDisplay == StyleDisplay ::Block))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("pseudoStyle->StyleDisplay()->mDisplay == StyleDisplay::Block" " (" "Unexpected display" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 4880); AnnotateMozCrashReason("MOZ_ASSERT" "(" "pseudoStyle->StyleDisplay()->mDisplay == StyleDisplay::Block" ") (" "Unexpected display" ")"); do { MOZ_CrashSequence(__null , 4880); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 4881 | |
| 4882 | static constexpr FrameConstructionData sPageBreakData(NS_NewPageBreakFrame, |
| 4883 | FCDATA_SKIP_FRAMESET0x1); |
| 4884 | aItems.AppendItem(this, &sPageBreakData, aContent, pseudoStyle.forget(), |
| 4885 | true); |
| 4886 | } |
| 4887 | |
| 4888 | bool nsCSSFrameConstructor::ShouldCreateItemsForChild( |
| 4889 | nsFrameConstructorState& aState, nsIContent* aContent, |
| 4890 | nsContainerFrame* aParentFrame) { |
| 4891 | aContent->UnsetFlags(NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME); |
| 4892 | // XXX the GetContent() != aContent check is needed due to bug 135040. |
| 4893 | // Remove it once that's fixed. |
| 4894 | if (aContent->GetPrimaryFrame() && |
| 4895 | aContent->GetPrimaryFrame()->GetContent() == aContent && |
| 4896 | !aState.mCreatingExtraFrames) { |
| 4897 | MOZ_ASSERT(false,do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "asked to create frame construction item for a node that " "already has a frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 4899); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "asked to create frame construction item for a node that " "already has a frame" ")"); do { MOZ_CrashSequence(__null, 4899); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4898 | "asked to create frame construction item for a node that "do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "asked to create frame construction item for a node that " "already has a frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 4899); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "asked to create frame construction item for a node that " "already has a frame" ")"); do { MOZ_CrashSequence(__null, 4899); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4899 | "already has a frame")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "asked to create frame construction item for a node that " "already has a frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 4899); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "asked to create frame construction item for a node that " "already has a frame" ")"); do { MOZ_CrashSequence(__null, 4899); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4900 | return false; |
| 4901 | } |
| 4902 | |
| 4903 | // don't create a whitespace frame if aParent doesn't want it |
| 4904 | if (!NeedFrameFor(aState, aParentFrame, aContent)) { |
| 4905 | return false; |
| 4906 | } |
| 4907 | |
| 4908 | // never create frames for comments or PIs |
| 4909 | if (aContent->IsComment() || aContent->IsProcessingInstruction()) { |
| 4910 | return false; |
| 4911 | } |
| 4912 | |
| 4913 | return true; |
| 4914 | } |
| 4915 | |
| 4916 | void nsCSSFrameConstructor::AddFrameConstructionItems( |
| 4917 | nsFrameConstructorState& aState, nsIContent* aContent, |
| 4918 | bool aSuppressWhiteSpaceOptimizations, const ComputedStyle& aParentStyle, |
| 4919 | const InsertionPoint& aInsertion, FrameConstructionItemList& aItems, |
| 4920 | ItemFlags aFlags) { |
| 4921 | nsContainerFrame* parentFrame = aInsertion.mParentFrame; |
| 4922 | if (!ShouldCreateItemsForChild(aState, aContent, parentFrame)) { |
| 4923 | return; |
| 4924 | } |
| 4925 | |
| 4926 | RefPtr<ComputedStyle> computedStyle = ResolveComputedStyle(aContent); |
| 4927 | auto flags = aFlags + ItemFlag::AllowPageBreak; |
| 4928 | if (parentFrame) { |
| 4929 | if (parentFrame->IsInSVGTextSubtree()) { |
| 4930 | flags += ItemFlag::IsWithinSVGText; |
| 4931 | } |
| 4932 | if (parentFrame->IsBlockFrame() && parentFrame->GetParent() && |
| 4933 | parentFrame->GetParent()->IsSVGTextFrame()) { |
| 4934 | flags += ItemFlag::AllowTextPathChild; |
| 4935 | } |
| 4936 | } |
| 4937 | AddFrameConstructionItemsInternal(aState, aContent, parentFrame, |
| 4938 | aSuppressWhiteSpaceOptimizations, |
| 4939 | computedStyle, flags, aItems); |
| 4940 | } |
| 4941 | |
| 4942 | // Whether we should suppress frames for a child under a <select> element. |
| 4943 | // Right now we need this for two things: |
| 4944 | // * To implement <option label>'s suppression of descendants (sad!) |
| 4945 | // * To implement hiding of the <select>'s text content (hopefully going away |
| 4946 | // soon enough, see https://github.com/whatwg/html/issues/12717). |
| 4947 | static bool ShouldSuppressFrameForSelect(const nsIContent* aParent, |
| 4948 | const nsIContent& aChild) { |
| 4949 | if (!aParent) { |
| 4950 | return false; |
| 4951 | } |
| 4952 | |
| 4953 | if (aChild.IsRootOfNativeAnonymousSubtree()) { |
| 4954 | // Allow native anonymous content no matter what. |
| 4955 | return false; |
| 4956 | } |
| 4957 | |
| 4958 | if (aParent->IsHTMLElement(nsGkAtoms::option)) { |
| 4959 | // Options with labels have their label text added in ::before by forms.css. |
| 4960 | // Suppress frames for their children. |
| 4961 | // TODO(emilio): This should probably be done with shadow DOM instead (but a |
| 4962 | // ShadowRoot per option seems unfortunate...). |
| 4963 | return aParent->AsElement()->HasNonEmptyAttr(nsGkAtoms::label); |
| 4964 | } |
| 4965 | |
| 4966 | if (const auto* select = HTMLSelectElement::FromNode(aParent)) { |
| 4967 | // Direct text descendants of listbox <select> are not expected to render. |
| 4968 | return !select->IsCombobox() && aChild.IsText() && |
| 4969 | aParent == aChild.GetParent(); |
| 4970 | } |
| 4971 | |
| 4972 | return false; |
| 4973 | } |
| 4974 | |
| 4975 | const nsCSSFrameConstructor::FrameConstructionData* |
| 4976 | nsCSSFrameConstructor::FindDataForContent(nsIContent& aContent, |
| 4977 | ComputedStyle& aStyle, |
| 4978 | nsIFrame* aParentFrame, |
| 4979 | ItemFlags aFlags) { |
| 4980 | MOZ_ASSERT(aStyle.StyleDisplay()->mDisplay != StyleDisplay::None &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStyle.StyleDisplay()->mDisplay != StyleDisplay:: None && aStyle.StyleDisplay()->mDisplay != StyleDisplay ::Contents)>::isValid, "invalid assertion condition"); if ( (__builtin_expect(!!(!(!!(aStyle.StyleDisplay()->mDisplay != StyleDisplay::None && aStyle.StyleDisplay()->mDisplay != StyleDisplay::Contents))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aStyle.StyleDisplay()->mDisplay != StyleDisplay::None && aStyle.StyleDisplay()->mDisplay != StyleDisplay::Contents" " (" "These two special display values should be handled earlier" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 4982 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStyle.StyleDisplay()->mDisplay != StyleDisplay::None && aStyle.StyleDisplay()->mDisplay != StyleDisplay::Contents" ") (" "These two special display values should be handled earlier" ")"); do { MOZ_CrashSequence(__null, 4982); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4981 | aStyle.StyleDisplay()->mDisplay != StyleDisplay::Contents,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStyle.StyleDisplay()->mDisplay != StyleDisplay:: None && aStyle.StyleDisplay()->mDisplay != StyleDisplay ::Contents)>::isValid, "invalid assertion condition"); if ( (__builtin_expect(!!(!(!!(aStyle.StyleDisplay()->mDisplay != StyleDisplay::None && aStyle.StyleDisplay()->mDisplay != StyleDisplay::Contents))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aStyle.StyleDisplay()->mDisplay != StyleDisplay::None && aStyle.StyleDisplay()->mDisplay != StyleDisplay::Contents" " (" "These two special display values should be handled earlier" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 4982 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStyle.StyleDisplay()->mDisplay != StyleDisplay::None && aStyle.StyleDisplay()->mDisplay != StyleDisplay::Contents" ") (" "These two special display values should be handled earlier" ")"); do { MOZ_CrashSequence(__null, 4982); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4982 | "These two special display values should be handled earlier")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStyle.StyleDisplay()->mDisplay != StyleDisplay:: None && aStyle.StyleDisplay()->mDisplay != StyleDisplay ::Contents)>::isValid, "invalid assertion condition"); if ( (__builtin_expect(!!(!(!!(aStyle.StyleDisplay()->mDisplay != StyleDisplay::None && aStyle.StyleDisplay()->mDisplay != StyleDisplay::Contents))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aStyle.StyleDisplay()->mDisplay != StyleDisplay::None && aStyle.StyleDisplay()->mDisplay != StyleDisplay::Contents" " (" "These two special display values should be handled earlier" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 4982 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStyle.StyleDisplay()->mDisplay != StyleDisplay::None && aStyle.StyleDisplay()->mDisplay != StyleDisplay::Contents" ") (" "These two special display values should be handled earlier" ")"); do { MOZ_CrashSequence(__null, 4982); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4983 | |
| 4984 | if (auto* text = Text::FromNode(aContent)) { |
| 4985 | return FindTextData(*text, aParentFrame); |
| 4986 | } |
| 4987 | |
| 4988 | return FindElementData(*aContent.AsElement(), aStyle, aParentFrame, aFlags); |
| 4989 | } |
| 4990 | |
| 4991 | const nsCSSFrameConstructor::FrameConstructionData* |
| 4992 | nsCSSFrameConstructor::FindElementData(const Element& aElement, |
| 4993 | ComputedStyle& aStyle, |
| 4994 | nsIFrame* aParentFrame, |
| 4995 | ItemFlags aFlags) { |
| 4996 | // Don't create frames for non-SVG element children of SVG elements. |
| 4997 | if (!aElement.IsSVGElement()) { |
| 4998 | // NOTE: Anon content (from non display: contents) is allowed, the native |
| 4999 | // code should know what it's doing. In practice we care about ::backdrop |
| 5000 | // and the custom-content-container. |
| 5001 | if (aParentFrame && IsFrameForSVG(aParentFrame) && |
| 5002 | !aParentFrame->IsSVGForeignObjectFrame() && |
| 5003 | (aElement.GetParent() != aParentFrame->GetContent() || |
| 5004 | !aElement.IsRootOfNativeAnonymousSubtree())) { |
| 5005 | return nullptr; |
| 5006 | } |
| 5007 | if (aFlags.contains(ItemFlag::IsWithinSVGText)) { |
| 5008 | return nullptr; |
| 5009 | } |
| 5010 | } |
| 5011 | |
| 5012 | if (auto* data = FindElementTagData(aElement, aStyle, aParentFrame, aFlags)) { |
| 5013 | return data; |
| 5014 | } |
| 5015 | |
| 5016 | // Check for 'content: <image-url>' on the element (which makes us ignore |
| 5017 | // 'display' values other than 'none' or 'contents'). |
| 5018 | if (nsImageFrame::ShouldCreateImageFrameForContentProperty(aElement, |
| 5019 | aStyle)) { |
| 5020 | static constexpr FrameConstructionData sImgData( |
| 5021 | NS_NewImageFrameForContentProperty); |
| 5022 | return &sImgData; |
| 5023 | } |
| 5024 | |
| 5025 | const bool shouldBlockify = aFlags.contains(ItemFlag::IsForRenderedLegend) || |
| 5026 | aFlags.contains(ItemFlag::IsForOutsideMarker); |
| 5027 | if (shouldBlockify && !aStyle.StyleDisplay()->IsBlockOutsideStyle()) { |
| 5028 | // Make a temp copy of StyleDisplay and blockify its mDisplay value. |
| 5029 | auto display = *aStyle.StyleDisplay(); |
| 5030 | bool isRootElement = false; |
| 5031 | uint16_t rawDisplayValue = |
| 5032 | Servo_ComputedValues_BlockifiedDisplay(&aStyle, isRootElement); |
| 5033 | display.mDisplay = StyleDisplay{rawDisplayValue}; |
| 5034 | return FindDisplayData(display, aElement); |
| 5035 | } |
| 5036 | |
| 5037 | const auto& display = *aStyle.StyleDisplay(); |
| 5038 | return FindDisplayData(display, aElement); |
| 5039 | } |
| 5040 | |
| 5041 | const nsCSSFrameConstructor::FrameConstructionData* |
| 5042 | nsCSSFrameConstructor::FindElementTagData(const Element& aElement, |
| 5043 | ComputedStyle& aStyle, |
| 5044 | nsIFrame* aParentFrame, |
| 5045 | ItemFlags aFlags) { |
| 5046 | switch (aElement.GetNameSpaceID()) { |
| 5047 | case kNameSpaceID_XHTML3: |
| 5048 | return FindHTMLData(aElement, aParentFrame, aStyle); |
| 5049 | case kNameSpaceID_MathML6: |
| 5050 | return FindMathMLData(aElement, aStyle); |
| 5051 | case kNameSpaceID_SVG9: |
| 5052 | return FindSVGData(aElement, aParentFrame, |
| 5053 | aFlags.contains(ItemFlag::IsWithinSVGText), |
| 5054 | aFlags.contains(ItemFlag::AllowTextPathChild), aStyle); |
| 5055 | case kNameSpaceID_XUL8: |
| 5056 | return FindXULTagData(aElement, aStyle); |
| 5057 | default: |
| 5058 | return nullptr; |
| 5059 | } |
| 5060 | } |
| 5061 | |
| 5062 | void nsCSSFrameConstructor::AddFrameConstructionItemsInternal( |
| 5063 | nsFrameConstructorState& aState, nsIContent* aContent, |
| 5064 | nsContainerFrame* aParentFrame, bool aSuppressWhiteSpaceOptimizations, |
| 5065 | ComputedStyle* aComputedStyle, ItemFlags aFlags, |
| 5066 | FrameConstructionItemList& aItems) { |
| 5067 | MOZ_ASSERT(aContent->IsText() || aContent->IsElement(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContent->IsText() || aContent->IsElement())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aContent->IsText() || aContent->IsElement()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aContent->IsText() || aContent->IsElement()" " (" "Shouldn't get anything else here!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5068); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContent->IsText() || aContent->IsElement()" ") (" "Shouldn't get anything else here!" ")"); do { MOZ_CrashSequence (__null, 5068); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 5068 | "Shouldn't get anything else here!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContent->IsText() || aContent->IsElement())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aContent->IsText() || aContent->IsElement()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aContent->IsText() || aContent->IsElement()" " (" "Shouldn't get anything else here!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5068); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContent->IsText() || aContent->IsElement()" ") (" "Shouldn't get anything else here!" ")"); do { MOZ_CrashSequence (__null, 5068); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 5069 | MOZ_ASSERT(aContent->IsInComposedDoc())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContent->IsInComposedDoc())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContent->IsInComposedDoc ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aContent->IsInComposedDoc()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5069); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContent->IsInComposedDoc()" ")"); do { MOZ_CrashSequence(__null, 5069); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5070 | MOZ_ASSERT(!aContent->GetPrimaryFrame() || aState.mCreatingExtraFrames ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aContent->NodeInfo()->NameAtom() == nsGkAtoms::area )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aContent->NodeInfo()->NameAtom() == nsGkAtoms::area ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aContent->NodeInfo()->NameAtom() == nsGkAtoms::area" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5071); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!aContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aContent->NodeInfo()->NameAtom() == nsGkAtoms::area" ")"); do { MOZ_CrashSequence(__null, 5071); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5071 | aContent->NodeInfo()->NameAtom() == nsGkAtoms::area)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aContent->NodeInfo()->NameAtom() == nsGkAtoms::area )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aContent->NodeInfo()->NameAtom() == nsGkAtoms::area ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aContent->NodeInfo()->NameAtom() == nsGkAtoms::area" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5071); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!aContent->GetPrimaryFrame() || aState.mCreatingExtraFrames || aContent->NodeInfo()->NameAtom() == nsGkAtoms::area" ")"); do { MOZ_CrashSequence(__null, 5071); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5072 | |
| 5073 | const bool withinSVGText = aFlags.contains(ItemFlag::IsWithinSVGText); |
| 5074 | const bool isGeneratedContent = aFlags.contains(ItemFlag::IsGeneratedContent); |
| 5075 | MOZ_ASSERT(!isGeneratedContent || aComputedStyle->IsPseudoElement(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!isGeneratedContent || aComputedStyle->IsPseudoElement ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!isGeneratedContent || aComputedStyle->IsPseudoElement ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!isGeneratedContent || aComputedStyle->IsPseudoElement()" " (" "Generated content should be a pseudo-element" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5076); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!isGeneratedContent || aComputedStyle->IsPseudoElement()" ") (" "Generated content should be a pseudo-element" ")"); do { MOZ_CrashSequence(__null, 5076); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 5076 | "Generated content should be a pseudo-element")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!isGeneratedContent || aComputedStyle->IsPseudoElement ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!isGeneratedContent || aComputedStyle->IsPseudoElement ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!isGeneratedContent || aComputedStyle->IsPseudoElement()" " (" "Generated content should be a pseudo-element" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5076); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!isGeneratedContent || aComputedStyle->IsPseudoElement()" ") (" "Generated content should be a pseudo-element" ")"); do { MOZ_CrashSequence(__null, 5076); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 5077 | |
| 5078 | FrameConstructionItem* item = nullptr; |
| 5079 | auto cleanupGeneratedContent = mozilla::MakeScopeExit([&]() { |
| 5080 | if (isGeneratedContent && !item && !aState.mCreatingExtraFrames) { |
| 5081 | MOZ_ASSERT(!IsDisplayContents(aContent),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsDisplayContents(aContent))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsDisplayContents(aContent) ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!IsDisplayContents(aContent)" " (" "This would need to change if we support display: contents " "in generated content" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5083); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsDisplayContents(aContent)" ") (" "This would need to change if we support display: contents " "in generated content" ")"); do { MOZ_CrashSequence(__null, 5083 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 5082 | "This would need to change if we support display: contents "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsDisplayContents(aContent))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsDisplayContents(aContent) ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!IsDisplayContents(aContent)" " (" "This would need to change if we support display: contents " "in generated content" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5083); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsDisplayContents(aContent)" ") (" "This would need to change if we support display: contents " "in generated content" ")"); do { MOZ_CrashSequence(__null, 5083 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 5083 | "in generated content")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsDisplayContents(aContent))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsDisplayContents(aContent) ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!IsDisplayContents(aContent)" " (" "This would need to change if we support display: contents " "in generated content" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5083); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsDisplayContents(aContent)" ") (" "This would need to change if we support display: contents " "in generated content" ")"); do { MOZ_CrashSequence(__null, 5083 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 5084 | aContent->UnbindFromTree(); |
| 5085 | } |
| 5086 | }); |
| 5087 | |
| 5088 | // 'display:none' elements never creates any frames at all. |
| 5089 | const nsStyleDisplay& display = *aComputedStyle->StyleDisplay(); |
| 5090 | if (display.mDisplay == StyleDisplay::None) { |
| 5091 | return; |
| 5092 | } |
| 5093 | |
| 5094 | if (display.mDisplay == StyleDisplay::Contents) { |
| 5095 | // See the mDisplay fixup code in StyleAdjuster::adjust. |
| 5096 | MOZ_ASSERT(!aContent->AsElement()->IsRootOfNativeAnonymousSubtree(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aContent->AsElement()->IsRootOfNativeAnonymousSubtree ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aContent->AsElement()->IsRootOfNativeAnonymousSubtree ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aContent->AsElement()->IsRootOfNativeAnonymousSubtree()" " (" "display:contents on anonymous content is unsupported" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5097); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!aContent->AsElement()->IsRootOfNativeAnonymousSubtree()" ") (" "display:contents on anonymous content is unsupported" ")"); do { MOZ_CrashSequence(__null, 5097); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5097 | "display:contents on anonymous content is unsupported")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aContent->AsElement()->IsRootOfNativeAnonymousSubtree ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aContent->AsElement()->IsRootOfNativeAnonymousSubtree ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aContent->AsElement()->IsRootOfNativeAnonymousSubtree()" " (" "display:contents on anonymous content is unsupported" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5097); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!aContent->AsElement()->IsRootOfNativeAnonymousSubtree()" ") (" "display:contents on anonymous content is unsupported" ")"); do { MOZ_CrashSequence(__null, 5097); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5098 | |
| 5099 | // FIXME(bug 1588477): <svg:text>'s TextNodeCorrespondenceRecorder has |
| 5100 | // trouble with everything that looks like display: contents. |
| 5101 | if (withinSVGText) { |
| 5102 | return; |
| 5103 | } |
| 5104 | |
| 5105 | CreateGeneratedContentItem(aState, aParentFrame, *aContent->AsElement(), |
| 5106 | *aComputedStyle, PseudoStyleType::Before, |
| 5107 | aItems); |
| 5108 | |
| 5109 | FlattenedChildIterator iter(aContent); |
| 5110 | InsertionPoint insertion(aParentFrame, aContent); |
| 5111 | for (nsIContent* child = iter.GetNextChild(); child; |
| 5112 | child = iter.GetNextChild()) { |
| 5113 | AddFrameConstructionItems(aState, child, aSuppressWhiteSpaceOptimizations, |
| 5114 | *aComputedStyle, insertion, aItems, aFlags); |
| 5115 | } |
| 5116 | aItems.SetParentHasNoShadowDOM(!iter.ShadowDOMInvolved()); |
| 5117 | |
| 5118 | CreateGeneratedContentItem(aState, aParentFrame, *aContent->AsElement(), |
| 5119 | *aComputedStyle, PseudoStyleType::After, aItems); |
| 5120 | return; |
| 5121 | } |
| 5122 | |
| 5123 | nsIContent* parent = aParentFrame ? aParentFrame->GetContent() : nullptr; |
| 5124 | if (ShouldSuppressFrameForSelect(parent, *aContent)) { |
| 5125 | return; |
| 5126 | } |
| 5127 | |
| 5128 | if (aContent->IsHTMLElement(nsGkAtoms::legend) && aParentFrame) { |
| 5129 | const nsFieldSetFrame* const fs = GetFieldSetFrameFor(aParentFrame); |
| 5130 | if (fs && !fs->GetLegend() && !aState.mHasRenderedLegend && |
| 5131 | !aComputedStyle->StyleDisplay()->IsFloatingStyle() && |
| 5132 | !aComputedStyle->StyleDisplay()->IsAbsolutelyPositionedStyle()) { |
| 5133 | aState.mHasRenderedLegend = true; |
| 5134 | aFlags += ItemFlag::IsForRenderedLegend; |
| 5135 | } |
| 5136 | } |
| 5137 | |
| 5138 | const FrameConstructionData* const data = |
| 5139 | FindDataForContent(*aContent, *aComputedStyle, aParentFrame, aFlags); |
| 5140 | if (!data) { |
| 5141 | return; |
| 5142 | } |
| 5143 | const uint32_t bits = data->mBits; |
| 5144 | if (bits & FCDATA_SUPPRESS_FRAME0x40) { |
| 5145 | return; |
| 5146 | } |
| 5147 | // Create our shadow tree lazily if needed. |
| 5148 | // NOTE(emilio): This is rather hacky, we should ideally remove this and make |
| 5149 | // shadow tree creation faster, see bug 2017005. |
| 5150 | if (const RefPtr input = HTMLInputElement::FromNode(aContent)) { |
| 5151 | if (auto* sr = input->CreateShadowTreeFromLayoutIfNeeded()) { |
| 5152 | StyleNewChildRange(sr->GetFirstChild(), nullptr); |
| 5153 | } |
| 5154 | } |
| 5155 | |
| 5156 | const bool canHavePageBreak = |
| 5157 | aFlags.contains(ItemFlag::AllowPageBreak) && |
| 5158 | aState.mPresContext->IsPaginated() && |
| 5159 | !display.IsAbsolutelyPositionedStyle() && |
| 5160 | !(aParentFrame && aParentFrame->IsFlexOrGridContainer()) && |
| 5161 | !(bits & FCDATA_IS_TABLE_PART0x800) && !(bits & FCDATA_IS_SVG_TEXT0x80000); |
| 5162 | if (canHavePageBreak && display.BreakBefore()) { |
| 5163 | AppendPageBreakItem(aContent, aItems); |
| 5164 | } |
| 5165 | |
| 5166 | if (!item) { |
| 5167 | item = aItems.AppendItem(this, data, aContent, do_AddRef(aComputedStyle), |
| 5168 | aSuppressWhiteSpaceOptimizations); |
| 5169 | if (aFlags.contains(ItemFlag::IsForRenderedLegend)) { |
| 5170 | item->mIsRenderedLegend = true; |
| 5171 | } |
| 5172 | } |
| 5173 | item->mIsText = !aContent->IsElement(); |
| 5174 | item->mIsGeneratedContent = isGeneratedContent; |
| 5175 | item->mIsSharedGeneratedContent = |
| 5176 | isGeneratedContent && aState.mCreatingExtraFrames; |
| 5177 | if (isGeneratedContent) { |
| 5178 | // We need to keep this alive until the frame takes ownership. |
| 5179 | // This corresponds to the Release in ConstructFramesFromItem. |
| 5180 | item->mContent->AddRef(); |
| 5181 | } |
| 5182 | |
| 5183 | if (canHavePageBreak && display.BreakAfter()) { |
| 5184 | AppendPageBreakItem(aContent, aItems); |
| 5185 | } |
| 5186 | |
| 5187 | if (bits & FCDATA_IS_INLINE0x1000) { |
| 5188 | // To correctly set item->mIsAllInline we need to build up our child items |
| 5189 | // right now. |
| 5190 | BuildInlineChildItems(aState, *item, |
| 5191 | aFlags.contains(ItemFlag::IsWithinSVGText), |
| 5192 | aFlags.contains(ItemFlag::AllowTextPathChild)); |
| 5193 | item->mIsBlock = false; |
| 5194 | } else { |
| 5195 | // Compute a boolean isInline which is guaranteed to be false for blocks |
| 5196 | // (but may also be false for some inlines). |
| 5197 | const bool isInline = |
| 5198 | // Table-internal things are inline-outside if and only if they're kids |
| 5199 | // of inlines, since they'll trigger construction of inline-table |
| 5200 | // pseudos. |
| 5201 | ((bits & FCDATA_IS_TABLE_PART0x800) && |
| 5202 | (!aParentFrame || // No aParentFrame means inline |
| 5203 | aParentFrame->StyleDisplay()->IsInlineFlow())) || |
| 5204 | // Things that are inline-outside but aren't inline frames are inline |
| 5205 | display.IsInlineOutsideStyle(); |
| 5206 | |
| 5207 | // Set mIsAllInline conservatively. It just might be that even an inline |
| 5208 | // that has mIsAllInline false doesn't need an {ib} split. So this is just |
| 5209 | // an optimization to keep from doing too much work in cases when we can |
| 5210 | // show that mIsAllInline is true.. |
| 5211 | item->mIsAllInline = |
| 5212 | isInline || |
| 5213 | // Figure out whether we're guaranteed this item will be out of flow. |
| 5214 | // This is not a precise test, since one of our ancestor inlines might |
| 5215 | // add an absolute containing block (if it's relatively positioned) when |
| 5216 | // there wasn't such a containing block before. But it's conservative |
| 5217 | // in the sense that anything that will really end up as an in-flow |
| 5218 | // non-inline will test false here. In other words, if this test is |
| 5219 | // true we're guaranteed to be inline; if it's false we don't know what |
| 5220 | // we'll end up as. |
| 5221 | // |
| 5222 | // If we make this test precise, we can remove some of the code dealing |
| 5223 | // with the imprecision in ConstructInline and adjust the comments on |
| 5224 | // mIsAllInline and mIsBlock in the header. |
| 5225 | (!(bits & FCDATA_DISALLOW_OUT_OF_FLOW0x8) && |
| 5226 | aState.GetGeometricParent(display, nullptr)); |
| 5227 | |
| 5228 | // Set mIsBlock conservatively. It's OK to set it false for some real |
| 5229 | // blocks, but not OK to set it true for things that aren't blocks. Since |
| 5230 | // isOutOfFlow might be false even in cases when the frame will end up |
| 5231 | // out-of-flow, we can't use it here. But we _can_ say that the frame will |
| 5232 | // for sure end up in-flow if it's not floated or absolutely positioned. |
| 5233 | item->mIsBlock = !isInline && !display.IsAbsolutelyPositionedStyle() && |
| 5234 | !display.IsFloatingStyle() && !(bits & FCDATA_IS_SVG_TEXT0x80000); |
| 5235 | } |
| 5236 | |
| 5237 | if (item->mIsAllInline) { |
| 5238 | aItems.InlineItemAdded(); |
| 5239 | } else if (item->mIsBlock) { |
| 5240 | aItems.BlockItemAdded(); |
| 5241 | } |
| 5242 | } |
| 5243 | |
| 5244 | /** |
| 5245 | * Return true if the frame construction item pointed to by aIter will |
| 5246 | * create a frame adjacent to a line boundary in the frame tree, and that |
| 5247 | * line boundary is induced by a content node adjacent to the frame's |
| 5248 | * content node in the content tree. The latter condition is necessary so |
| 5249 | * that ContentAppended/ContentInserted/ContentWillBeRemoved can easily find any |
| 5250 | * text nodes that were suppressed here. |
| 5251 | */ |
| 5252 | bool nsCSSFrameConstructor::AtLineBoundary(FCItemIterator& aIter) { |
| 5253 | if (aIter.item().mSuppressWhiteSpaceOptimizations) { |
| 5254 | return false; |
| 5255 | } |
| 5256 | |
| 5257 | if (aIter.AtStart()) { |
| 5258 | if (aIter.List()->HasLineBoundaryAtStart() && |
| 5259 | !aIter.item().mContent->GetPreviousSibling()) { |
| 5260 | return true; |
| 5261 | } |
| 5262 | } else { |
| 5263 | FCItemIterator prev = aIter; |
| 5264 | prev.Prev(); |
| 5265 | if (prev.item().IsLineBoundary() && |
| 5266 | !prev.item().mSuppressWhiteSpaceOptimizations && |
| 5267 | aIter.item().mContent->GetPreviousSibling() == prev.item().mContent) { |
| 5268 | return true; |
| 5269 | } |
| 5270 | } |
| 5271 | |
| 5272 | FCItemIterator next = aIter; |
| 5273 | next.Next(); |
| 5274 | if (next.IsDone()) { |
| 5275 | if (aIter.List()->HasLineBoundaryAtEnd() && |
| 5276 | !aIter.item().mContent->GetNextSibling()) { |
| 5277 | return true; |
| 5278 | } |
| 5279 | } else { |
| 5280 | if (next.item().IsLineBoundary() && |
| 5281 | !next.item().mSuppressWhiteSpaceOptimizations && |
| 5282 | aIter.item().mContent->GetNextSibling() == next.item().mContent) { |
| 5283 | return true; |
| 5284 | } |
| 5285 | } |
| 5286 | |
| 5287 | return false; |
| 5288 | } |
| 5289 | |
| 5290 | void nsCSSFrameConstructor::ConstructFramesFromItem( |
| 5291 | nsFrameConstructorState& aState, FCItemIterator& aIter, |
| 5292 | nsContainerFrame* aParentFrame, nsFrameList& aFrameList) { |
| 5293 | FrameConstructionItem& item = aIter.item(); |
| 5294 | ComputedStyle* computedStyle = item.mComputedStyle; |
| 5295 | if (item.mIsText) { |
| 5296 | // If this is collapsible whitespace next to a line boundary, |
| 5297 | // don't create a frame. item.IsWhitespace() also sets the |
| 5298 | // NS_CREATE_FRAME_IF_NON_WHITESPACE flag in the text node. (If we |
| 5299 | // end up creating a frame, nsTextFrame::Init will clear the flag.) |
| 5300 | // We don't do this for generated content, because some generated |
| 5301 | // text content is empty text nodes that are about to be initialized. |
| 5302 | // (We check mAdditionalStateBits because only the generated content |
| 5303 | // container's frame construction item is marked with |
| 5304 | // mIsGeneratedContent, and we might not have an aParentFrame.) |
| 5305 | // We don't do it for content that may have Shadow DOM siblings / insertion |
| 5306 | // points, because they make it difficult to correctly create the frame due |
| 5307 | // to dynamic changes. |
| 5308 | // We don't do it for SVG text, since we might need to position and |
| 5309 | // measure the white space glyphs due to x/y/dx/dy attributes. |
| 5310 | if (AtLineBoundary(aIter) && |
| 5311 | !computedStyle->StyleText()->WhiteSpaceOrNewlineIsSignificant() && |
| 5312 | aIter.List()->ParentHasNoShadowDOM() && |
| 5313 | !(aState.mAdditionalStateBits & NS_FRAME_GENERATED_CONTENT) && |
| 5314 | (item.mFCData->mBits & FCDATA_IS_LINE_PARTICIPANT0x2000) && |
| 5315 | !(item.mFCData->mBits & FCDATA_IS_SVG_TEXT0x80000) && |
| 5316 | !mAlwaysCreateFramesForIgnorableWhitespace && |
| 5317 | item.IsWhitespace(aState)) { |
| 5318 | return; |
| 5319 | } |
| 5320 | |
| 5321 | ConstructTextFrame(item.mFCData, aState, item.mContent, aParentFrame, |
| 5322 | computedStyle, aFrameList); |
| 5323 | return; |
| 5324 | } |
| 5325 | |
| 5326 | AutoRestore<nsFrameState> savedStateBits(aState.mAdditionalStateBits); |
| 5327 | if (item.mIsGeneratedContent) { |
| 5328 | // Ensure that frames created here are all tagged with |
| 5329 | // NS_FRAME_GENERATED_CONTENT. |
| 5330 | aState.mAdditionalStateBits |= NS_FRAME_GENERATED_CONTENT; |
| 5331 | } |
| 5332 | |
| 5333 | // XXXbz maybe just inline ConstructFrameFromItemInternal here or something? |
| 5334 | ConstructFrameFromItemInternal(item, aState, aParentFrame, aFrameList); |
| 5335 | |
| 5336 | if (item.mIsGeneratedContent) { |
| 5337 | // This corresponds to the AddRef in AddFrameConstructionItemsInternal. |
| 5338 | // The frame owns the generated content now. |
| 5339 | item.mContent->Release(); |
| 5340 | |
| 5341 | // Now that we've passed ownership of item.mContent to the frame, unset |
| 5342 | // our generated content flag so we don't release or unbind it ourselves. |
| 5343 | item.mIsGeneratedContent = false; |
| 5344 | } |
| 5345 | } |
| 5346 | |
| 5347 | nsContainerFrame* nsCSSFrameConstructor::GetAbsoluteContainingBlock( |
| 5348 | nsIFrame* aFrame, ContainingBlockType aType) { |
| 5349 | // Starting with aFrame, look for a frame that is absolutely positioned or |
| 5350 | // relatively positioned (and transformed, if aType is FIXED) |
| 5351 | for (nsIFrame* frame = aFrame; frame; frame = frame->GetParent()) { |
| 5352 | if (frame->IsMathMLFrame()) { |
| 5353 | // If it's mathml, bail out -- no absolute positioning out from inside |
| 5354 | // mathml frames. Note that we don't make this part of the loop |
| 5355 | // condition because of the stuff at the end of this method... |
| 5356 | return nullptr; |
| 5357 | } |
| 5358 | |
| 5359 | // Look for the ICB. |
| 5360 | if (aType == FIXED_POS && |
| 5361 | (frame->IsViewportFrame() || frame->IsPageContentFrame())) { |
| 5362 | return static_cast<nsContainerFrame*>(frame); |
| 5363 | } |
| 5364 | |
| 5365 | // If the frame is positioned, we will probably return it as the containing |
| 5366 | // block (see the exceptions below). Otherwise, we'll start looking at the |
| 5367 | // parent frame, unless we're dealing with a scrollframe. |
| 5368 | // Scrollframes are special since they're not positioned, but their |
| 5369 | // scrolledframe might be. So, we need to check this special case to return |
| 5370 | // the correct containing block (the scrolledframe) in that case. |
| 5371 | // If we're looking for a fixed-pos containing block and the frame is |
| 5372 | // not transformed, skip it. |
| 5373 | if (!frame->IsAbsPosContainingBlock()) { |
| 5374 | continue; |
| 5375 | } |
| 5376 | if (aType == FIXED_POS && !frame->IsFixedPosContainingBlock()) { |
| 5377 | continue; |
| 5378 | } |
| 5379 | nsIFrame* absPosCBCandidate = frame; |
| 5380 | if (absPosCBCandidate->IsFieldSetFrame()) { |
| 5381 | absPosCBCandidate = |
| 5382 | static_cast<nsFieldSetFrame*>(absPosCBCandidate)->GetInner(); |
| 5383 | if (!absPosCBCandidate) { |
| 5384 | continue; |
| 5385 | } |
| 5386 | } |
| 5387 | if (absPosCBCandidate->IsScrollContainerFrame()) { |
| 5388 | ScrollContainerFrame* scrollContainerFrame = |
| 5389 | do_QueryFrame(absPosCBCandidate); |
| 5390 | absPosCBCandidate = scrollContainerFrame->GetScrolledFrame(); |
| 5391 | if (!absPosCBCandidate) { |
| 5392 | continue; |
| 5393 | } |
| 5394 | } |
| 5395 | // Only first continuations or first IB-split siblings can be containing |
| 5396 | // blocks. |
| 5397 | absPosCBCandidate = |
| 5398 | nsLayoutUtils::FirstContinuationOrIBSplitSibling(absPosCBCandidate); |
| 5399 | // Is the frame really an absolute container? |
| 5400 | if (!absPosCBCandidate->IsAbsoluteContainer()) { |
| 5401 | continue; |
| 5402 | } |
| 5403 | |
| 5404 | // For tables, skip the inner frame and consider the table wrapper frame. |
| 5405 | if (absPosCBCandidate->IsTableFrame()) { |
| 5406 | continue; |
| 5407 | } |
| 5408 | // For table wrapper frames, we can just return absPosCBCandidate. |
| 5409 | MOZ_ASSERT((nsContainerFrame*)do_QueryFrame(absPosCBCandidate),do { static_assert( mozilla::detail::AssertionConditionType< decltype((nsContainerFrame*)do_QueryFrame(absPosCBCandidate)) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!((nsContainerFrame*)do_QueryFrame(absPosCBCandidate)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("(nsContainerFrame*)do_QueryFrame(absPosCBCandidate)" " (" "abs.pos. containing block must be nsContainerFrame sub-class" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5410 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "(nsContainerFrame*)do_QueryFrame(absPosCBCandidate)" ") (" "abs.pos. containing block must be nsContainerFrame sub-class" ")"); do { MOZ_CrashSequence(__null, 5410); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5410 | "abs.pos. containing block must be nsContainerFrame sub-class")do { static_assert( mozilla::detail::AssertionConditionType< decltype((nsContainerFrame*)do_QueryFrame(absPosCBCandidate)) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!((nsContainerFrame*)do_QueryFrame(absPosCBCandidate)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("(nsContainerFrame*)do_QueryFrame(absPosCBCandidate)" " (" "abs.pos. containing block must be nsContainerFrame sub-class" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5410 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "(nsContainerFrame*)do_QueryFrame(absPosCBCandidate)" ") (" "abs.pos. containing block must be nsContainerFrame sub-class" ")"); do { MOZ_CrashSequence(__null, 5410); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5411 | return static_cast<nsContainerFrame*>(absPosCBCandidate); |
| 5412 | } |
| 5413 | |
| 5414 | MOZ_ASSERT(aType != FIXED_POS, "no ICB in this frame tree?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aType != FIXED_POS)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aType != FIXED_POS))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aType != FIXED_POS" " (" "no ICB in this frame tree?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5414); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aType != FIXED_POS" ") (" "no ICB in this frame tree?" ")"); do { MOZ_CrashSequence (__null, 5414); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 5415 | |
| 5416 | // It is possible for the search for the containing block to fail, because |
| 5417 | // no absolute container can be found in the parent chain. In those cases, |
| 5418 | // we fall back to the document element's containing block. |
| 5419 | return mDocElementContainingBlock; |
| 5420 | } |
| 5421 | |
| 5422 | nsContainerFrame* nsCSSFrameConstructor::GetFloatContainingBlock( |
| 5423 | nsIFrame* aFrame) { |
| 5424 | // Starting with aFrame, look for a frame that is a float containing block. |
| 5425 | // If we hit a frame which prevents its descendants from floating, bail out. |
| 5426 | // The logic here needs to match the logic in MaybePushFloatContainingBlock(). |
| 5427 | for (nsIFrame* containingBlock = aFrame; |
| 5428 | containingBlock && !ShouldSuppressFloatingOfDescendants(containingBlock); |
| 5429 | containingBlock = containingBlock->GetParent()) { |
| 5430 | if (containingBlock->IsFloatContainingBlock()) { |
| 5431 | MOZ_ASSERT((nsContainerFrame*)do_QueryFrame(containingBlock),do { static_assert( mozilla::detail::AssertionConditionType< decltype((nsContainerFrame*)do_QueryFrame(containingBlock))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!((nsContainerFrame*)do_QueryFrame(containingBlock)))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("(nsContainerFrame*)do_QueryFrame(containingBlock)" " (" "float containing block must be nsContainerFrame sub-class" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5432 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "(nsContainerFrame*)do_QueryFrame(containingBlock)" ") (" "float containing block must be nsContainerFrame sub-class" ")"); do { MOZ_CrashSequence(__null, 5432); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5432 | "float containing block must be nsContainerFrame sub-class")do { static_assert( mozilla::detail::AssertionConditionType< decltype((nsContainerFrame*)do_QueryFrame(containingBlock))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!((nsContainerFrame*)do_QueryFrame(containingBlock)))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("(nsContainerFrame*)do_QueryFrame(containingBlock)" " (" "float containing block must be nsContainerFrame sub-class" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5432 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "(nsContainerFrame*)do_QueryFrame(containingBlock)" ") (" "float containing block must be nsContainerFrame sub-class" ")"); do { MOZ_CrashSequence(__null, 5432); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5433 | return static_cast<nsContainerFrame*>(containingBlock); |
| 5434 | } |
| 5435 | } |
| 5436 | |
| 5437 | // If we didn't find a containing block, then there just isn't |
| 5438 | // one.... return null |
| 5439 | return nullptr; |
| 5440 | } |
| 5441 | |
| 5442 | /** |
| 5443 | * Finds the right parent frame to append content to aParentFrame. |
| 5444 | * |
| 5445 | * Cannot return or receive null. |
| 5446 | */ |
| 5447 | static nsContainerFrame* ContinuationToAppendTo( |
| 5448 | nsContainerFrame* aParentFrame) { |
| 5449 | MOZ_ASSERT(aParentFrame)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParentFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParentFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aParentFrame", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5449); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParentFrame" ")"); do { MOZ_CrashSequence(__null, 5449); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5450 | |
| 5451 | if (IsFramePartOfIBSplit(aParentFrame)) { |
| 5452 | // If the frame we are manipulating is a ib-split frame (that is, one that's |
| 5453 | // been created as a result of a block-in-inline situation) then we need to |
| 5454 | // append to the last ib-split sibling, not to the frame itself. |
| 5455 | // |
| 5456 | // Always make sure to look at the last continuation of the frame for the |
| 5457 | // {ib} case, even if that continuation is empty. |
| 5458 | // |
| 5459 | // We don't do this for the non-ib-split-frame case, since in the other |
| 5460 | // cases appending to the last nonempty continuation is fine and in fact not |
| 5461 | // doing that can confuse code that doesn't know to pull kids from |
| 5462 | // continuations other than its next one. |
| 5463 | return static_cast<nsContainerFrame*>( |
| 5464 | GetLastIBSplitSibling(aParentFrame)->LastContinuation()); |
| 5465 | } |
| 5466 | |
| 5467 | return nsLayoutUtils::LastContinuationWithChild(aParentFrame); |
| 5468 | } |
| 5469 | |
| 5470 | /** |
| 5471 | * This function will get the next sibling for a frame insert operation given |
| 5472 | * the parent and previous sibling. aPrevSibling may be null. |
| 5473 | */ |
| 5474 | static nsIFrame* GetInsertNextSibling(nsIFrame* aParentFrame, |
| 5475 | nsIFrame* aPrevSibling) { |
| 5476 | if (aPrevSibling) { |
| 5477 | return aPrevSibling->GetNextSibling(); |
| 5478 | } |
| 5479 | |
| 5480 | return aParentFrame->PrincipalChildList().FirstChild(); |
| 5481 | } |
| 5482 | |
| 5483 | void nsCSSFrameConstructor::AppendFramesToParent( |
| 5484 | nsFrameConstructorState& aState, nsContainerFrame* aParentFrame, |
| 5485 | nsFrameList& aFrameList, nsIFrame* aPrevSibling, bool aIsRecursiveCall) { |
| 5486 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsFramePartOfIBSplit(aParentFrame) || !GetIBSplitSibling (aParentFrame) || !GetIBSplitSibling(aParentFrame)->PrincipalChildList ().FirstChild())>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(!IsFramePartOfIBSplit(aParentFrame ) || !GetIBSplitSibling(aParentFrame) || !GetIBSplitSibling(aParentFrame )->PrincipalChildList().FirstChild()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsFramePartOfIBSplit(aParentFrame) || !GetIBSplitSibling(aParentFrame) || !GetIBSplitSibling(aParentFrame)->PrincipalChildList().FirstChild()" " (" "aParentFrame has a ib-split sibling with kids?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5489); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsFramePartOfIBSplit(aParentFrame) || !GetIBSplitSibling(aParentFrame) || !GetIBSplitSibling(aParentFrame)->PrincipalChildList().FirstChild()" ") (" "aParentFrame has a ib-split sibling with kids?" ")"); do { MOZ_CrashSequence(__null, 5489); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5487 | !IsFramePartOfIBSplit(aParentFrame) || !GetIBSplitSibling(aParentFrame) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsFramePartOfIBSplit(aParentFrame) || !GetIBSplitSibling (aParentFrame) || !GetIBSplitSibling(aParentFrame)->PrincipalChildList ().FirstChild())>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(!IsFramePartOfIBSplit(aParentFrame ) || !GetIBSplitSibling(aParentFrame) || !GetIBSplitSibling(aParentFrame )->PrincipalChildList().FirstChild()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsFramePartOfIBSplit(aParentFrame) || !GetIBSplitSibling(aParentFrame) || !GetIBSplitSibling(aParentFrame)->PrincipalChildList().FirstChild()" " (" "aParentFrame has a ib-split sibling with kids?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5489); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsFramePartOfIBSplit(aParentFrame) || !GetIBSplitSibling(aParentFrame) || !GetIBSplitSibling(aParentFrame)->PrincipalChildList().FirstChild()" ") (" "aParentFrame has a ib-split sibling with kids?" ")"); do { MOZ_CrashSequence(__null, 5489); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5488 | !GetIBSplitSibling(aParentFrame)->PrincipalChildList().FirstChild(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsFramePartOfIBSplit(aParentFrame) || !GetIBSplitSibling (aParentFrame) || !GetIBSplitSibling(aParentFrame)->PrincipalChildList ().FirstChild())>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(!IsFramePartOfIBSplit(aParentFrame ) || !GetIBSplitSibling(aParentFrame) || !GetIBSplitSibling(aParentFrame )->PrincipalChildList().FirstChild()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsFramePartOfIBSplit(aParentFrame) || !GetIBSplitSibling(aParentFrame) || !GetIBSplitSibling(aParentFrame)->PrincipalChildList().FirstChild()" " (" "aParentFrame has a ib-split sibling with kids?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5489); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsFramePartOfIBSplit(aParentFrame) || !GetIBSplitSibling(aParentFrame) || !GetIBSplitSibling(aParentFrame)->PrincipalChildList().FirstChild()" ") (" "aParentFrame has a ib-split sibling with kids?" ")"); do { MOZ_CrashSequence(__null, 5489); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5489 | "aParentFrame has a ib-split sibling with kids?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsFramePartOfIBSplit(aParentFrame) || !GetIBSplitSibling (aParentFrame) || !GetIBSplitSibling(aParentFrame)->PrincipalChildList ().FirstChild())>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(!IsFramePartOfIBSplit(aParentFrame ) || !GetIBSplitSibling(aParentFrame) || !GetIBSplitSibling(aParentFrame )->PrincipalChildList().FirstChild()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsFramePartOfIBSplit(aParentFrame) || !GetIBSplitSibling(aParentFrame) || !GetIBSplitSibling(aParentFrame)->PrincipalChildList().FirstChild()" " (" "aParentFrame has a ib-split sibling with kids?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5489); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsFramePartOfIBSplit(aParentFrame) || !GetIBSplitSibling(aParentFrame) || !GetIBSplitSibling(aParentFrame)->PrincipalChildList().FirstChild()" ") (" "aParentFrame has a ib-split sibling with kids?" ")"); do { MOZ_CrashSequence(__null, 5489); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5490 | MOZ_ASSERT(!aPrevSibling || aPrevSibling->GetParent() == aParentFrame,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aPrevSibling || aPrevSibling->GetParent() == aParentFrame )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aPrevSibling || aPrevSibling->GetParent() == aParentFrame ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aPrevSibling || aPrevSibling->GetParent() == aParentFrame" " (" "Parent and prevsibling don't match" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5491); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aPrevSibling || aPrevSibling->GetParent() == aParentFrame" ") (" "Parent and prevsibling don't match" ")"); do { MOZ_CrashSequence (__null, 5491); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 5491 | "Parent and prevsibling don't match")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aPrevSibling || aPrevSibling->GetParent() == aParentFrame )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aPrevSibling || aPrevSibling->GetParent() == aParentFrame ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aPrevSibling || aPrevSibling->GetParent() == aParentFrame" " (" "Parent and prevsibling don't match" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5491); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aPrevSibling || aPrevSibling->GetParent() == aParentFrame" ") (" "Parent and prevsibling don't match" ")"); do { MOZ_CrashSequence (__null, 5491); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 5492 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR ) || !IsFramePartOfIBSplit(aParentFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aParentFrame->HasAnyStateBits (NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit (aParentFrame)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit(aParentFrame)" " (" "We should have wiped aParentFrame in WipeContainingBlock() " "if it's part of an IB split!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5496); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit(aParentFrame)" ") (" "We should have wiped aParentFrame in WipeContainingBlock() " "if it's part of an IB split!" ")"); do { MOZ_CrashSequence( __null, 5496); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false) |
| 5493 | !aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR ) || !IsFramePartOfIBSplit(aParentFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aParentFrame->HasAnyStateBits (NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit (aParentFrame)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit(aParentFrame)" " (" "We should have wiped aParentFrame in WipeContainingBlock() " "if it's part of an IB split!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5496); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit(aParentFrame)" ") (" "We should have wiped aParentFrame in WipeContainingBlock() " "if it's part of an IB split!" ")"); do { MOZ_CrashSequence( __null, 5496); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false) |
| 5494 | !IsFramePartOfIBSplit(aParentFrame),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR ) || !IsFramePartOfIBSplit(aParentFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aParentFrame->HasAnyStateBits (NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit (aParentFrame)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit(aParentFrame)" " (" "We should have wiped aParentFrame in WipeContainingBlock() " "if it's part of an IB split!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5496); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit(aParentFrame)" ") (" "We should have wiped aParentFrame in WipeContainingBlock() " "if it's part of an IB split!" ")"); do { MOZ_CrashSequence( __null, 5496); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false) |
| 5495 | "We should have wiped aParentFrame in WipeContainingBlock() "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR ) || !IsFramePartOfIBSplit(aParentFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aParentFrame->HasAnyStateBits (NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit (aParentFrame)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit(aParentFrame)" " (" "We should have wiped aParentFrame in WipeContainingBlock() " "if it's part of an IB split!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5496); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit(aParentFrame)" ") (" "We should have wiped aParentFrame in WipeContainingBlock() " "if it's part of an IB split!" ")"); do { MOZ_CrashSequence( __null, 5496); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false) |
| 5496 | "if it's part of an IB split!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR ) || !IsFramePartOfIBSplit(aParentFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aParentFrame->HasAnyStateBits (NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit (aParentFrame)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit(aParentFrame)" " (" "We should have wiped aParentFrame in WipeContainingBlock() " "if it's part of an IB split!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5496); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) || !IsFramePartOfIBSplit(aParentFrame)" ") (" "We should have wiped aParentFrame in WipeContainingBlock() " "if it's part of an IB split!" ")"); do { MOZ_CrashSequence( __null, 5496); __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 5497 | |
| 5498 | nsIFrame* nextSibling = ::GetInsertNextSibling(aParentFrame, aPrevSibling); |
| 5499 | |
| 5500 | NS_ASSERTION(nextSibling || !aParentFrame->GetNextContinuation() ||do { if (!(nextSibling || !aParentFrame->GetNextContinuation () || !aParentFrame->GetNextContinuation() ->PrincipalChildList () .FirstChild() || aIsRecursiveCall)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "aParentFrame has later continuations with kids?", "nextSibling || !aParentFrame->GetNextContinuation() || !aParentFrame->GetNextContinuation() ->PrincipalChildList() .FirstChild() || aIsRecursiveCall" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5505); MOZ_PretendNoReturn (); } } while (0) |
| 5501 | !aParentFrame->GetNextContinuation()do { if (!(nextSibling || !aParentFrame->GetNextContinuation () || !aParentFrame->GetNextContinuation() ->PrincipalChildList () .FirstChild() || aIsRecursiveCall)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "aParentFrame has later continuations with kids?", "nextSibling || !aParentFrame->GetNextContinuation() || !aParentFrame->GetNextContinuation() ->PrincipalChildList() .FirstChild() || aIsRecursiveCall" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5505); MOZ_PretendNoReturn (); } } while (0) |
| 5502 | ->PrincipalChildList()do { if (!(nextSibling || !aParentFrame->GetNextContinuation () || !aParentFrame->GetNextContinuation() ->PrincipalChildList () .FirstChild() || aIsRecursiveCall)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "aParentFrame has later continuations with kids?", "nextSibling || !aParentFrame->GetNextContinuation() || !aParentFrame->GetNextContinuation() ->PrincipalChildList() .FirstChild() || aIsRecursiveCall" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5505); MOZ_PretendNoReturn (); } } while (0) |
| 5503 | .FirstChild() ||do { if (!(nextSibling || !aParentFrame->GetNextContinuation () || !aParentFrame->GetNextContinuation() ->PrincipalChildList () .FirstChild() || aIsRecursiveCall)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "aParentFrame has later continuations with kids?", "nextSibling || !aParentFrame->GetNextContinuation() || !aParentFrame->GetNextContinuation() ->PrincipalChildList() .FirstChild() || aIsRecursiveCall" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5505); MOZ_PretendNoReturn (); } } while (0) |
| 5504 | aIsRecursiveCall,do { if (!(nextSibling || !aParentFrame->GetNextContinuation () || !aParentFrame->GetNextContinuation() ->PrincipalChildList () .FirstChild() || aIsRecursiveCall)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "aParentFrame has later continuations with kids?", "nextSibling || !aParentFrame->GetNextContinuation() || !aParentFrame->GetNextContinuation() ->PrincipalChildList() .FirstChild() || aIsRecursiveCall" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5505); MOZ_PretendNoReturn (); } } while (0) |
| 5505 | "aParentFrame has later continuations with kids?")do { if (!(nextSibling || !aParentFrame->GetNextContinuation () || !aParentFrame->GetNextContinuation() ->PrincipalChildList () .FirstChild() || aIsRecursiveCall)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "aParentFrame has later continuations with kids?", "nextSibling || !aParentFrame->GetNextContinuation() || !aParentFrame->GetNextContinuation() ->PrincipalChildList() .FirstChild() || aIsRecursiveCall" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5505); MOZ_PretendNoReturn (); } } while (0); |
| 5506 | NS_ASSERTION(do { if (!(nextSibling || !IsFramePartOfIBSplit(aParentFrame) || (IsInlineFrame(aParentFrame) && !GetIBSplitSibling (aParentFrame) && !aParentFrame->GetNextContinuation ()) || aIsRecursiveCall)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "aParentFrame is not last?", "nextSibling || !IsFramePartOfIBSplit(aParentFrame) || (IsInlineFrame(aParentFrame) && !GetIBSplitSibling(aParentFrame) && !aParentFrame->GetNextContinuation()) || aIsRecursiveCall" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5511); MOZ_PretendNoReturn (); } } while (0) |
| 5507 | nextSibling || !IsFramePartOfIBSplit(aParentFrame) ||do { if (!(nextSibling || !IsFramePartOfIBSplit(aParentFrame) || (IsInlineFrame(aParentFrame) && !GetIBSplitSibling (aParentFrame) && !aParentFrame->GetNextContinuation ()) || aIsRecursiveCall)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "aParentFrame is not last?", "nextSibling || !IsFramePartOfIBSplit(aParentFrame) || (IsInlineFrame(aParentFrame) && !GetIBSplitSibling(aParentFrame) && !aParentFrame->GetNextContinuation()) || aIsRecursiveCall" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5511); MOZ_PretendNoReturn (); } } while (0) |
| 5508 | (IsInlineFrame(aParentFrame) && !GetIBSplitSibling(aParentFrame) &&do { if (!(nextSibling || !IsFramePartOfIBSplit(aParentFrame) || (IsInlineFrame(aParentFrame) && !GetIBSplitSibling (aParentFrame) && !aParentFrame->GetNextContinuation ()) || aIsRecursiveCall)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "aParentFrame is not last?", "nextSibling || !IsFramePartOfIBSplit(aParentFrame) || (IsInlineFrame(aParentFrame) && !GetIBSplitSibling(aParentFrame) && !aParentFrame->GetNextContinuation()) || aIsRecursiveCall" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5511); MOZ_PretendNoReturn (); } } while (0) |
| 5509 | !aParentFrame->GetNextContinuation()) ||do { if (!(nextSibling || !IsFramePartOfIBSplit(aParentFrame) || (IsInlineFrame(aParentFrame) && !GetIBSplitSibling (aParentFrame) && !aParentFrame->GetNextContinuation ()) || aIsRecursiveCall)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "aParentFrame is not last?", "nextSibling || !IsFramePartOfIBSplit(aParentFrame) || (IsInlineFrame(aParentFrame) && !GetIBSplitSibling(aParentFrame) && !aParentFrame->GetNextContinuation()) || aIsRecursiveCall" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5511); MOZ_PretendNoReturn (); } } while (0) |
| 5510 | aIsRecursiveCall,do { if (!(nextSibling || !IsFramePartOfIBSplit(aParentFrame) || (IsInlineFrame(aParentFrame) && !GetIBSplitSibling (aParentFrame) && !aParentFrame->GetNextContinuation ()) || aIsRecursiveCall)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "aParentFrame is not last?", "nextSibling || !IsFramePartOfIBSplit(aParentFrame) || (IsInlineFrame(aParentFrame) && !GetIBSplitSibling(aParentFrame) && !aParentFrame->GetNextContinuation()) || aIsRecursiveCall" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5511); MOZ_PretendNoReturn (); } } while (0) |
| 5511 | "aParentFrame is not last?")do { if (!(nextSibling || !IsFramePartOfIBSplit(aParentFrame) || (IsInlineFrame(aParentFrame) && !GetIBSplitSibling (aParentFrame) && !aParentFrame->GetNextContinuation ()) || aIsRecursiveCall)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "aParentFrame is not last?", "nextSibling || !IsFramePartOfIBSplit(aParentFrame) || (IsInlineFrame(aParentFrame) && !GetIBSplitSibling(aParentFrame) && !aParentFrame->GetNextContinuation()) || aIsRecursiveCall" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5511); MOZ_PretendNoReturn (); } } while (0); |
| 5512 | |
| 5513 | // If we're inserting a list of frames at the end of the trailing inline |
| 5514 | // of an {ib} split, we may need to create additional {ib} siblings to parent |
| 5515 | // them. |
| 5516 | if (!nextSibling && IsFramePartOfIBSplit(aParentFrame)) { |
| 5517 | // When we get here, our frame list might start with a block. If it does |
| 5518 | // so, and aParentFrame is an inline, and it and all its previous |
| 5519 | // continuations have no siblings, then put the initial blocks from the |
| 5520 | // frame list into the previous block of the {ib} split. Note that we |
| 5521 | // didn't want to stop at the block part of the split when figuring out |
| 5522 | // initial parent, because that could screw up float parenting; it's easier |
| 5523 | // to do this little fixup here instead. |
| 5524 | if (aFrameList.NotEmpty() && aFrameList.FirstChild()->IsBlockOutside()) { |
| 5525 | // See whether our trailing inline is empty |
| 5526 | nsIFrame* firstContinuation = aParentFrame->FirstContinuation(); |
| 5527 | if (firstContinuation->PrincipalChildList().IsEmpty()) { |
| 5528 | // Our trailing inline is empty. Collect our starting blocks from |
| 5529 | // aFrameList, get the right parent frame for them, and put them in. |
| 5530 | nsFrameList blockKids = |
| 5531 | aFrameList.Split([](nsIFrame* f) { return !f->IsBlockOutside(); }); |
| 5532 | NS_ASSERTION(blockKids.NotEmpty(), "No blocks?")do { if (!(blockKids.NotEmpty())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "No blocks?", "blockKids.NotEmpty()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5532); MOZ_PretendNoReturn(); } } while (0); |
| 5533 | |
| 5534 | nsContainerFrame* prevBlock = GetIBSplitPrevSibling(firstContinuation); |
| 5535 | prevBlock = |
| 5536 | static_cast<nsContainerFrame*>(prevBlock->LastContinuation()); |
| 5537 | NS_ASSERTION(prevBlock, "Should have previous block here")do { if (!(prevBlock)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Should have previous block here" , "prevBlock", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5537); MOZ_PretendNoReturn(); } } while (0); |
| 5538 | |
| 5539 | MoveChildrenTo(aParentFrame, prevBlock, blockKids); |
| 5540 | } |
| 5541 | } |
| 5542 | |
| 5543 | // We want to put some of the frames into this inline frame. |
| 5544 | nsFrameList inlineKids = |
| 5545 | aFrameList.Split([](nsIFrame* f) { return f->IsBlockOutside(); }); |
| 5546 | |
| 5547 | if (!inlineKids.IsEmpty()) { |
| 5548 | AppendFrames(aParentFrame, FrameChildListID::Principal, |
| 5549 | std::move(inlineKids)); |
| 5550 | } |
| 5551 | |
| 5552 | if (!aFrameList.IsEmpty()) { |
| 5553 | nsFrameList ibSiblings; |
| 5554 | CreateIBSiblings(aState, aParentFrame, |
| 5555 | aParentFrame->IsAbsPosContainingBlock(), aFrameList, |
| 5556 | ibSiblings); |
| 5557 | |
| 5558 | // Make sure to trigger reflow of the inline that used to be our |
| 5559 | // last one and now isn't anymore, since its GetSkipSides() has |
| 5560 | // changed. |
| 5561 | mPresShell->FrameNeedsReflow(aParentFrame, |
| 5562 | IntrinsicDirty::FrameAndAncestors, |
| 5563 | NS_FRAME_HAS_DIRTY_CHILDREN); |
| 5564 | |
| 5565 | // Recurse so we create new ib siblings as needed for aParentFrame's |
| 5566 | // parent |
| 5567 | return AppendFramesToParent(aState, aParentFrame->GetParent(), ibSiblings, |
| 5568 | aParentFrame, true); |
| 5569 | } |
| 5570 | return; |
| 5571 | } |
| 5572 | |
| 5573 | // If we're appending a list of frames to the last continuations of a |
| 5574 | // ::-moz-column-content, we may need to create column-span siblings for them. |
| 5575 | if (!nextSibling && IsLastContinuationForColumnContent(aParentFrame)) { |
| 5576 | // Extract any initial non-column-span kids, and append them to |
| 5577 | // ::-moz-column-content's child list. |
| 5578 | nsFrameList initialNonColumnSpanKids = |
| 5579 | aFrameList.Split([](nsIFrame* f) { return f->IsColumnSpan(); }); |
| 5580 | AppendFrames(aParentFrame, FrameChildListID::Principal, |
| 5581 | std::move(initialNonColumnSpanKids)); |
| 5582 | |
| 5583 | if (aFrameList.IsEmpty()) { |
| 5584 | // No more kids to process (there weren't any column-span kids). |
| 5585 | return; |
| 5586 | } |
| 5587 | |
| 5588 | nsFrameList columnSpanSiblings = CreateColumnSpanSiblings( |
| 5589 | aState, aParentFrame, aFrameList, |
| 5590 | // Column content should never be a absolute/fixed positioned containing |
| 5591 | // block. Pass nullptr as aPositionedFrame. |
| 5592 | nullptr); |
| 5593 | |
| 5594 | nsContainerFrame* columnSetWrapper = aParentFrame->GetParent(); |
| 5595 | while (!columnSetWrapper->IsColumnSetWrapperFrame()) { |
| 5596 | columnSetWrapper = columnSetWrapper->GetParent(); |
| 5597 | } |
| 5598 | MOZ_ASSERT(columnSetWrapper,do { static_assert( mozilla::detail::AssertionConditionType< decltype(columnSetWrapper)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(columnSetWrapper))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("columnSetWrapper" " (" "No ColumnSetWrapperFrame ancestor for -moz-column-content?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5599 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "columnSetWrapper" ") (" "No ColumnSetWrapperFrame ancestor for -moz-column-content?" ")"); do { MOZ_CrashSequence(__null, 5599); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5599 | "No ColumnSetWrapperFrame ancestor for -moz-column-content?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(columnSetWrapper)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(columnSetWrapper))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("columnSetWrapper" " (" "No ColumnSetWrapperFrame ancestor for -moz-column-content?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5599 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "columnSetWrapper" ") (" "No ColumnSetWrapperFrame ancestor for -moz-column-content?" ")"); do { MOZ_CrashSequence(__null, 5599); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5600 | |
| 5601 | FinishBuildingColumns(aState, columnSetWrapper, aParentFrame, |
| 5602 | columnSpanSiblings); |
| 5603 | |
| 5604 | MOZ_ASSERT(columnSpanSiblings.IsEmpty(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(columnSpanSiblings.IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(columnSpanSiblings.IsEmpty() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "columnSpanSiblings.IsEmpty()" " (" "The column-span siblings should be moved to the proper place!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5605 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "columnSpanSiblings.IsEmpty()" ") (" "The column-span siblings should be moved to the proper place!" ")"); do { MOZ_CrashSequence(__null, 5605); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5605 | "The column-span siblings should be moved to the proper place!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(columnSpanSiblings.IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(columnSpanSiblings.IsEmpty() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "columnSpanSiblings.IsEmpty()" " (" "The column-span siblings should be moved to the proper place!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5605 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "columnSpanSiblings.IsEmpty()" ") (" "The column-span siblings should be moved to the proper place!" ")"); do { MOZ_CrashSequence(__null, 5605); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5606 | return; |
| 5607 | } |
| 5608 | |
| 5609 | // Insert the frames after our aPrevSibling |
| 5610 | InsertFrames(aParentFrame, FrameChildListID::Principal, aPrevSibling, |
| 5611 | std::move(aFrameList)); |
| 5612 | } |
| 5613 | |
| 5614 | template <nsCSSFrameConstructor::SiblingDirection aDirection> |
| 5615 | nsIFrame* nsCSSFrameConstructor::FindSiblingInternal( |
| 5616 | FlattenedChildIterator& aIter) { |
| 5617 | auto nextDomSibling = [](FlattenedChildIterator& aIter) -> nsIContent* { |
| 5618 | return aDirection == SiblingDirection::Forward ? aIter.GetNextChild() |
| 5619 | : aIter.GetPreviousChild(); |
| 5620 | }; |
| 5621 | |
| 5622 | auto getInsideMarkerFrame = [](const nsIContent* aContent) -> nsIFrame* { |
| 5623 | auto* marker = nsLayoutUtils::GetMarkerFrame(aContent); |
| 5624 | const bool isInsideMarker = |
| 5625 | marker && marker->GetInFlowParent()->StyleList()->mListStylePosition == |
| 5626 | StyleListStylePosition::Inside; |
| 5627 | return isInsideMarker ? marker : nullptr; |
| 5628 | }; |
| 5629 | |
| 5630 | auto getNearPseudo = [&](const nsIContent* aContent) -> nsIFrame* { |
| 5631 | if (aDirection == SiblingDirection::Forward) { |
| 5632 | if (auto* backdrop = nsLayoutUtils::GetBackdropFrame(aContent)) { |
| 5633 | return backdrop; |
| 5634 | } |
| 5635 | if (auto* marker = getInsideMarkerFrame(aContent)) { |
| 5636 | return marker; |
| 5637 | } |
| 5638 | return nsLayoutUtils::GetBeforeFrame(aContent); |
| 5639 | } |
| 5640 | return nsLayoutUtils::GetAfterFrame(aContent); |
| 5641 | }; |
| 5642 | |
| 5643 | auto getFarPseudo = [&](const nsIContent* aContent) -> nsIFrame* { |
| 5644 | if (aDirection == SiblingDirection::Forward) { |
| 5645 | if (auto* pickerIcon = nsLayoutUtils::GetPickerIconFrame(aContent)) { |
| 5646 | return pickerIcon; |
| 5647 | } |
| 5648 | return nsLayoutUtils::GetAfterFrame(aContent); |
| 5649 | } |
| 5650 | if (auto* before = nsLayoutUtils::GetBeforeFrame(aContent)) { |
| 5651 | return before; |
| 5652 | } |
| 5653 | if (auto* marker = getInsideMarkerFrame(aContent)) { |
| 5654 | return marker; |
| 5655 | } |
| 5656 | return nsLayoutUtils::GetBackdropFrame(aContent); |
| 5657 | }; |
| 5658 | |
| 5659 | while (nsIContent* sibling = nextDomSibling(aIter)) { |
| 5660 | // NOTE(emilio): It's important to check GetPrimaryFrame() before |
| 5661 | // IsDisplayContents to get the correct insertion point when multiple |
| 5662 | // siblings go from display: non-none to display: contents. |
| 5663 | if (nsIFrame* primaryFrame = sibling->GetPrimaryFrame()) { |
| 5664 | // XXX the GetContent() == sibling check is needed due to bug 135040. |
| 5665 | // Remove it once that's fixed. |
| 5666 | // The rendered legend check is needed because it is conceptually out of |
| 5667 | // flow. There can only be one rendered legend at a time, and we reframe |
| 5668 | // when that changes, so this is ok. Table captions are a similar case, |
| 5669 | // but there can be multiple of them and they instead get pulled out (and |
| 5670 | // the sibling fixed up) after building the frame list. |
| 5671 | if (primaryFrame->GetContent() == sibling && |
| 5672 | !primaryFrame->IsRenderedLegend()) [[likely]] { |
| 5673 | return primaryFrame; |
| 5674 | } |
| 5675 | } |
| 5676 | |
| 5677 | if (IsDisplayContents(sibling)) { |
| 5678 | if (nsIFrame* frame = getNearPseudo(sibling)) { |
| 5679 | return frame; |
| 5680 | } |
| 5681 | |
| 5682 | const bool startFromBeginning = aDirection == SiblingDirection::Forward; |
| 5683 | FlattenedChildIterator iter(sibling, startFromBeginning); |
| 5684 | nsIFrame* sibling = FindSiblingInternal<aDirection>(iter); |
| 5685 | if (sibling) { |
| 5686 | return sibling; |
| 5687 | } |
| 5688 | } |
| 5689 | } |
| 5690 | |
| 5691 | MOZ_ASSERT(aIter.ParentNode()->IsContent())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aIter.ParentNode()->IsContent())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aIter.ParentNode()->IsContent ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aIter.ParentNode()->IsContent()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5691); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aIter.ParentNode()->IsContent()" ")"); do { MOZ_CrashSequence(__null, 5691); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5692 | return getFarPseudo(aIter.ParentNode()->AsContent()); |
| 5693 | } |
| 5694 | |
| 5695 | nsIFrame* nsCSSFrameConstructor::AdjustSiblingFrame( |
| 5696 | nsIFrame* aSibling, SiblingDirection aDirection) { |
| 5697 | if (!aSibling) { |
| 5698 | return nullptr; |
| 5699 | } |
| 5700 | |
| 5701 | if (aSibling->HasAnyStateBits(NS_FRAME_OUT_OF_FLOW)) { |
| 5702 | aSibling = aSibling->GetPlaceholderFrame(); |
| 5703 | MOZ_ASSERT(aSibling)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aSibling)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aSibling))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aSibling", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5703); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aSibling" ")" ); do { MOZ_CrashSequence(__null, 5703); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5704 | } |
| 5705 | |
| 5706 | MOZ_ASSERT(!aSibling->GetPrevContinuation(), "How?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aSibling->GetPrevContinuation())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aSibling->GetPrevContinuation ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aSibling->GetPrevContinuation()" " (" "How?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5706); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aSibling->GetPrevContinuation()" ") (" "How?" ")"); do { MOZ_CrashSequence(__null, 5706); __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false); |
| 5707 | if (aDirection == SiblingDirection::Backward) { |
| 5708 | // The frame may be a ib-split frame (a split inline frame that contains a |
| 5709 | // block). Get the last part of that split. |
| 5710 | if (IsFramePartOfIBSplit(aSibling)) { |
| 5711 | aSibling = GetLastIBSplitSibling(aSibling); |
| 5712 | } |
| 5713 | |
| 5714 | // The frame may have a continuation. If so, we want the last |
| 5715 | // non-overflow-container continuation as our previous sibling. |
| 5716 | aSibling = aSibling->GetTailContinuation(); |
| 5717 | } |
| 5718 | |
| 5719 | return aSibling; |
| 5720 | } |
| 5721 | |
| 5722 | nsIFrame* nsCSSFrameConstructor::FindPreviousSibling( |
| 5723 | const FlattenedChildIterator& aIter) { |
| 5724 | return AdjustSiblingFrame(FindSibling<SiblingDirection::Backward>(aIter), |
| 5725 | SiblingDirection::Backward); |
| 5726 | } |
| 5727 | |
| 5728 | nsIFrame* nsCSSFrameConstructor::FindNextSibling( |
| 5729 | const FlattenedChildIterator& aIter) { |
| 5730 | return AdjustSiblingFrame(FindSibling<SiblingDirection::Forward>(aIter), |
| 5731 | SiblingDirection::Forward); |
| 5732 | } |
| 5733 | |
| 5734 | template <nsCSSFrameConstructor::SiblingDirection aDirection> |
| 5735 | nsIFrame* nsCSSFrameConstructor::FindSibling( |
| 5736 | const FlattenedChildIterator& aIter) { |
| 5737 | FlattenedChildIterator siblingIter = aIter; |
| 5738 | nsIFrame* sibling = FindSiblingInternal<aDirection>(siblingIter); |
| 5739 | if (sibling) { |
| 5740 | return sibling; |
| 5741 | } |
| 5742 | |
| 5743 | // Our siblings (if any) do not have a frame to guide us. The frame for the |
| 5744 | // target content should be inserted whereever a frame for the container would |
| 5745 | // be inserted. This is needed when inserting into display: contents nodes. |
| 5746 | const nsIContent* current = aIter.ParentNode()->AsContent(); |
| 5747 | while (IsDisplayContents(current)) { |
| 5748 | const nsIContent* parent = current->GetFlattenedTreeParent(); |
| 5749 | MOZ_ASSERT(parent, "No display: contents on the root")do { static_assert( mozilla::detail::AssertionConditionType< decltype(parent)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(parent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("parent" " (" "No display: contents on the root" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5749 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "parent" ") (" "No display: contents on the root" ")"); do { MOZ_CrashSequence(__null, 5749); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5750 | |
| 5751 | FlattenedChildIterator iter(parent); |
| 5752 | iter.Seek(current); |
| 5753 | sibling = FindSiblingInternal<aDirection>(iter); |
| 5754 | if (sibling) { |
| 5755 | return sibling; |
| 5756 | } |
| 5757 | |
| 5758 | current = parent; |
| 5759 | } |
| 5760 | |
| 5761 | return nullptr; |
| 5762 | } |
| 5763 | |
| 5764 | nsIFrame* nsCSSFrameConstructor::GetInsertionPrevSibling( |
| 5765 | InsertionPoint* aInsertion, nsIContent* aChild, bool* aIsAppend) { |
| 5766 | MOZ_ASSERT(aInsertion->mParentFrame, "Must have parent frame to start with")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aInsertion->mParentFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aInsertion->mParentFrame) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aInsertion->mParentFrame" " (" "Must have parent frame to start with" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5766); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aInsertion->mParentFrame" ") (" "Must have parent frame to start with" ")"); do { MOZ_CrashSequence (__null, 5766); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 5767 | |
| 5768 | *aIsAppend = false; |
| 5769 | |
| 5770 | // Find the frame that precedes the insertion point. |
| 5771 | FlattenedChildIterator iter(aInsertion->mContainer); |
| 5772 | if (!aChild->IsRootOfNativeAnonymousSubtree()) { |
| 5773 | // The check for IsRootOfNativeAnonymousSubtree() is because editor is |
| 5774 | // severely broken and calls us directly for native anonymous |
| 5775 | // nodes that it creates. |
| 5776 | iter.Seek(aChild); |
| 5777 | } else { |
| 5778 | // Prime the iterator for the call to FindPreviousSibling. |
| 5779 | (void)iter.GetNextChild(); |
| 5780 | MOZ_ASSERT(aChild->GetProperty(nsGkAtoms::restylableAnonymousNode),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChild->GetProperty(nsGkAtoms::restylableAnonymousNode ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aChild->GetProperty(nsGkAtoms::restylableAnonymousNode )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aChild->GetProperty(nsGkAtoms::restylableAnonymousNode)" " (" "Someone passed native anonymous content directly into frame " "construction. Stop doing that!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5782); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChild->GetProperty(nsGkAtoms::restylableAnonymousNode)" ") (" "Someone passed native anonymous content directly into frame " "construction. Stop doing that!" ")"); do { MOZ_CrashSequence (__null, 5782); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 5781 | "Someone passed native anonymous content directly into frame "do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChild->GetProperty(nsGkAtoms::restylableAnonymousNode ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aChild->GetProperty(nsGkAtoms::restylableAnonymousNode )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aChild->GetProperty(nsGkAtoms::restylableAnonymousNode)" " (" "Someone passed native anonymous content directly into frame " "construction. Stop doing that!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5782); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChild->GetProperty(nsGkAtoms::restylableAnonymousNode)" ") (" "Someone passed native anonymous content directly into frame " "construction. Stop doing that!" ")"); do { MOZ_CrashSequence (__null, 5782); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 5782 | "construction. Stop doing that!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChild->GetProperty(nsGkAtoms::restylableAnonymousNode ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aChild->GetProperty(nsGkAtoms::restylableAnonymousNode )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aChild->GetProperty(nsGkAtoms::restylableAnonymousNode)" " (" "Someone passed native anonymous content directly into frame " "construction. Stop doing that!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5782); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChild->GetProperty(nsGkAtoms::restylableAnonymousNode)" ") (" "Someone passed native anonymous content directly into frame " "construction. Stop doing that!" ")"); do { MOZ_CrashSequence (__null, 5782); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 5783 | } |
| 5784 | |
| 5785 | // Note that FindPreviousSibling is passed the iterator by value, so that |
| 5786 | // the later usage of the iterator starts from the same place. |
| 5787 | nsIFrame* prevSibling = FindPreviousSibling(iter); |
| 5788 | |
| 5789 | // Now, find the geometric parent so that we can handle continuations |
| 5790 | // properly. Use the prev sibling if we have it; otherwise use the next |
| 5791 | // sibling. |
| 5792 | if (prevSibling) { |
| 5793 | aInsertion->mParentFrame = |
| 5794 | prevSibling->GetParent()->GetContentInsertionFrame(); |
| 5795 | |
| 5796 | if (IsAnonymousItem(aInsertion->mParentFrame)) { |
| 5797 | // Special-case anonymous flex / grid items: Elements are blockified |
| 5798 | // inside those containers, so the anonymous item is unlikely to be the |
| 5799 | // right parent unless we're inserting a non-whitespace text-node. |
| 5800 | // |
| 5801 | // If we guess wrong, we catch this in WipeContainingBlock, but with a |
| 5802 | // performance penalty (and sometimes correctness too, see bug 2014986). |
| 5803 | // |
| 5804 | // TODO(emilio): Are there other situations where this is worth doing |
| 5805 | // (some table anon boxes or something?). Seems hard to do at this stage |
| 5806 | // where we still don't _quite_ know the details of what aChild is (in or |
| 5807 | // out of flow, display inside or outside...). Maybe WipeContainingBlock |
| 5808 | // should be able to fix-up the insertion point at the last minute? But |
| 5809 | // that seems more sketchy since some code does rely on looking at the |
| 5810 | // insertion point to decide what to construct. |
| 5811 | AssertAnonymousFlexOrGridItemParent(aInsertion->mParentFrame); |
| 5812 | if (!prevSibling->GetNextSibling() && |
| 5813 | (!aChild->IsText() || aChild->TextIsOnlyWhitespace())) { |
| 5814 | prevSibling = aInsertion->mParentFrame->GetTailContinuation(); |
| 5815 | aInsertion->mParentFrame = prevSibling->GetParent(); |
| 5816 | } |
| 5817 | } |
| 5818 | |
| 5819 | *aIsAppend = |
| 5820 | !::GetInsertNextSibling(aInsertion->mParentFrame, prevSibling) && |
| 5821 | !nsLayoutUtils::GetNextContinuationOrIBSplitSibling( |
| 5822 | aInsertion->mParentFrame) && |
| 5823 | !IsWrapperPseudo(aInsertion->mParentFrame); |
| 5824 | } else if (nsIFrame* nextSibling = FindNextSibling(iter)) { |
| 5825 | // If there is no previous sibling, then find the frame that follows |
| 5826 | aInsertion->mParentFrame = |
| 5827 | nextSibling->GetParent()->GetContentInsertionFrame(); |
| 5828 | if (IsAnonymousItem(aInsertion->mParentFrame)) { |
| 5829 | // See the prevSibling special-case above. |
| 5830 | AssertAnonymousFlexOrGridItemParent(aInsertion->mParentFrame); |
| 5831 | if (!nextSibling->GetPrevSibling() && |
| 5832 | (!aChild->IsText() || aChild->TextIsOnlyWhitespace())) { |
| 5833 | aInsertion->mParentFrame = |
| 5834 | aInsertion->mParentFrame->FirstContinuation()->GetParent(); |
| 5835 | } |
| 5836 | } |
| 5837 | } else { |
| 5838 | // No previous or next sibling, so treat this like an appended frame. |
| 5839 | *aIsAppend = true; |
| 5840 | |
| 5841 | aInsertion->mParentFrame = |
| 5842 | ::ContinuationToAppendTo(aInsertion->mParentFrame); |
| 5843 | |
| 5844 | prevSibling = aInsertion->mParentFrame->PrincipalChildList().LastChild(); |
| 5845 | } |
| 5846 | |
| 5847 | return prevSibling; |
| 5848 | } |
| 5849 | |
| 5850 | nsContainerFrame* nsCSSFrameConstructor::GetContentInsertionFrameFor( |
| 5851 | nsIContent* aContent) { |
| 5852 | nsIFrame* frame; |
| 5853 | while (!(frame = aContent->GetPrimaryFrame())) { |
| 5854 | if (!IsDisplayContents(aContent)) { |
| 5855 | return nullptr; |
| 5856 | } |
| 5857 | |
| 5858 | aContent = aContent->GetFlattenedTreeParent(); |
| 5859 | if (!aContent) { |
| 5860 | return nullptr; |
| 5861 | } |
| 5862 | } |
| 5863 | |
| 5864 | // If the content of the frame is not the desired content then this is not |
| 5865 | // really a frame for the desired content. |
| 5866 | // XXX This check is needed due to bug 135040. Remove it once that's fixed. |
| 5867 | if (frame->GetContent() != aContent) { |
| 5868 | return nullptr; |
| 5869 | } |
| 5870 | |
| 5871 | nsContainerFrame* insertionFrame = frame->GetContentInsertionFrame(); |
| 5872 | |
| 5873 | NS_ASSERTION(!insertionFrame || insertionFrame == frame || !frame->IsLeaf(),do { if (!(!insertionFrame || insertionFrame == frame || !frame ->IsLeaf())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "The insertion frame is the primary frame or the primary frame " "isn't a leaf", "!insertionFrame || insertionFrame == frame || !frame->IsLeaf()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5875); MOZ_PretendNoReturn (); } } while (0) |
| 5874 | "The insertion frame is the primary frame or the primary frame "do { if (!(!insertionFrame || insertionFrame == frame || !frame ->IsLeaf())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "The insertion frame is the primary frame or the primary frame " "isn't a leaf", "!insertionFrame || insertionFrame == frame || !frame->IsLeaf()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5875); MOZ_PretendNoReturn (); } } while (0) |
| 5875 | "isn't a leaf")do { if (!(!insertionFrame || insertionFrame == frame || !frame ->IsLeaf())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "The insertion frame is the primary frame or the primary frame " "isn't a leaf", "!insertionFrame || insertionFrame == frame || !frame->IsLeaf()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5875); MOZ_PretendNoReturn (); } } while (0); |
| 5876 | |
| 5877 | return insertionFrame; |
| 5878 | } |
| 5879 | |
| 5880 | static bool IsSpecialFramesetChild(nsIContent* aContent) { |
| 5881 | // IMPORTANT: This must match the conditions in nsHTMLFramesetFrame::Init. |
| 5882 | return aContent->IsAnyOfHTMLElements(nsGkAtoms::frameset, nsGkAtoms::frame); |
| 5883 | } |
| 5884 | |
| 5885 | static void InvalidateCanvasIfNeeded(PresShell* aPresShell, nsIContent* aNode); |
| 5886 | |
| 5887 | void nsCSSFrameConstructor::AddTextItemIfNeeded( |
| 5888 | nsFrameConstructorState& aState, const ComputedStyle& aParentStyle, |
| 5889 | const InsertionPoint& aInsertion, nsIContent* aPossibleTextContent, |
| 5890 | FrameConstructionItemList& aItems) { |
| 5891 | MOZ_ASSERT(aPossibleTextContent, "Must have node")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPossibleTextContent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aPossibleTextContent))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("aPossibleTextContent" " (" "Must have node" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 5891); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPossibleTextContent" ") (" "Must have node" ")"); do { MOZ_CrashSequence(__null, 5891 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 5892 | if (!aPossibleTextContent->IsText() || |
| 5893 | !aPossibleTextContent->HasFlag(NS_CREATE_FRAME_IF_NON_WHITESPACE) || |
| 5894 | aPossibleTextContent->HasFlag(NODE_NEEDS_FRAME)) { |
| 5895 | // Not text, or not suppressed due to being all-whitespace (if it were being |
| 5896 | // suppressed, it would have the NS_CREATE_FRAME_IF_NON_WHITESPACE flag), or |
| 5897 | // going to be reframed anyway. |
| 5898 | return; |
| 5899 | } |
| 5900 | MOZ_ASSERT(!aPossibleTextContent->GetPrimaryFrame(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aPossibleTextContent->GetPrimaryFrame())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!aPossibleTextContent->GetPrimaryFrame()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aPossibleTextContent->GetPrimaryFrame()" " (" "Text node has a frame and NS_CREATE_FRAME_IF_NON_WHITESPACE" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5901 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aPossibleTextContent->GetPrimaryFrame()" ") (" "Text node has a frame and NS_CREATE_FRAME_IF_NON_WHITESPACE" ")"); do { MOZ_CrashSequence(__null, 5901); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5901 | "Text node has a frame and NS_CREATE_FRAME_IF_NON_WHITESPACE")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aPossibleTextContent->GetPrimaryFrame())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!aPossibleTextContent->GetPrimaryFrame()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aPossibleTextContent->GetPrimaryFrame()" " (" "Text node has a frame and NS_CREATE_FRAME_IF_NON_WHITESPACE" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5901 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aPossibleTextContent->GetPrimaryFrame()" ") (" "Text node has a frame and NS_CREATE_FRAME_IF_NON_WHITESPACE" ")"); do { MOZ_CrashSequence(__null, 5901); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5902 | AddFrameConstructionItems(aState, aPossibleTextContent, false, aParentStyle, |
| 5903 | aInsertion, aItems); |
| 5904 | } |
| 5905 | |
| 5906 | void nsCSSFrameConstructor::ReframeTextIfNeeded(nsIContent* aContent) { |
| 5907 | if (!aContent->IsText() || |
| 5908 | !aContent->HasFlag(NS_CREATE_FRAME_IF_NON_WHITESPACE) || |
| 5909 | aContent->HasFlag(NODE_NEEDS_FRAME)) { |
| 5910 | // Not text, or not suppressed due to being all-whitespace (if it were being |
| 5911 | // suppressed, it would have the NS_CREATE_FRAME_IF_NON_WHITESPACE flag), or |
| 5912 | // going to be reframed anyway. |
| 5913 | return; |
| 5914 | } |
| 5915 | MOZ_ASSERT(!aContent->GetPrimaryFrame(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aContent->GetPrimaryFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aContent->GetPrimaryFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aContent->GetPrimaryFrame()" " (" "Text node has a frame and NS_CREATE_FRAME_IF_NON_WHITESPACE" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5916 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aContent->GetPrimaryFrame()" ") (" "Text node has a frame and NS_CREATE_FRAME_IF_NON_WHITESPACE" ")"); do { MOZ_CrashSequence(__null, 5916); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5916 | "Text node has a frame and NS_CREATE_FRAME_IF_NON_WHITESPACE")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aContent->GetPrimaryFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aContent->GetPrimaryFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aContent->GetPrimaryFrame()" " (" "Text node has a frame and NS_CREATE_FRAME_IF_NON_WHITESPACE" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5916 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aContent->GetPrimaryFrame()" ") (" "Text node has a frame and NS_CREATE_FRAME_IF_NON_WHITESPACE" ")"); do { MOZ_CrashSequence(__null, 5916); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5917 | ContentInserted(aContent, InsertionKind::Async); |
| 5918 | } |
| 5919 | |
| 5920 | #ifdef DEBUG1 |
| 5921 | void nsCSSFrameConstructor::CheckBitsForLazyFrameConstruction( |
| 5922 | nsIContent* aParent) { |
| 5923 | // If we hit a node with no primary frame, or the NODE_NEEDS_FRAME bit set |
| 5924 | // we want to assert, but leaf frames that process their own children and may |
| 5925 | // ignore anonymous children (eg framesets) make this complicated. So we set |
| 5926 | // these two booleans if we encounter these situations and unset them if we |
| 5927 | // hit a node with a leaf frame. |
| 5928 | // |
| 5929 | // It's fine if one of node without primary frame is in a display:none |
| 5930 | // subtree. |
| 5931 | // |
| 5932 | // Also, it's fine if one of the nodes without primary frame is a display: |
| 5933 | // contents node. |
| 5934 | bool noPrimaryFrame = false; |
| 5935 | bool needsFrameBitSet = false; |
| 5936 | nsIContent* content = aParent; |
| 5937 | while (content && !content->HasFlag(NODE_DESCENDANTS_NEED_FRAMES)) { |
| 5938 | if (content->GetPrimaryFrame() && content->GetPrimaryFrame()->IsLeaf()) { |
| 5939 | noPrimaryFrame = needsFrameBitSet = false; |
| 5940 | } |
| 5941 | if (!noPrimaryFrame && !content->GetPrimaryFrame()) { |
| 5942 | noPrimaryFrame = !IsDisplayContents(content); |
| 5943 | } |
| 5944 | if (!needsFrameBitSet && content->HasFlag(NODE_NEEDS_FRAME)) { |
| 5945 | needsFrameBitSet = true; |
| 5946 | } |
| 5947 | |
| 5948 | content = content->GetFlattenedTreeParent(); |
| 5949 | } |
| 5950 | if (content && content->GetPrimaryFrame() && |
| 5951 | content->GetPrimaryFrame()->IsLeaf()) { |
| 5952 | noPrimaryFrame = needsFrameBitSet = false; |
| 5953 | } |
| 5954 | MOZ_ASSERT(!noPrimaryFrame,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!noPrimaryFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!noPrimaryFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!noPrimaryFrame" " (" "Ancestors of nodes with frames to be " "constructed lazily should have frames" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5956 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!noPrimaryFrame" ") (" "Ancestors of nodes with frames to be " "constructed lazily should have frames" ")"); do { MOZ_CrashSequence(__null, 5956); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5955 | "Ancestors of nodes with frames to be "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!noPrimaryFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!noPrimaryFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!noPrimaryFrame" " (" "Ancestors of nodes with frames to be " "constructed lazily should have frames" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5956 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!noPrimaryFrame" ") (" "Ancestors of nodes with frames to be " "constructed lazily should have frames" ")"); do { MOZ_CrashSequence(__null, 5956); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5956 | "constructed lazily should have frames")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!noPrimaryFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!noPrimaryFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!noPrimaryFrame" " (" "Ancestors of nodes with frames to be " "constructed lazily should have frames" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5956 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!noPrimaryFrame" ") (" "Ancestors of nodes with frames to be " "constructed lazily should have frames" ")"); do { MOZ_CrashSequence(__null, 5956); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5957 | MOZ_ASSERT(!needsFrameBitSet,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!needsFrameBitSet)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!needsFrameBitSet))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!needsFrameBitSet" " (" "Ancestors of nodes with frames to be " "constructed lazily should not have NEEDS_FRAME bit set" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5959 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!needsFrameBitSet" ") (" "Ancestors of nodes with frames to be " "constructed lazily should not have NEEDS_FRAME bit set" ")"); do { MOZ_CrashSequence(__null, 5959); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5958 | "Ancestors of nodes with frames to be "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!needsFrameBitSet)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!needsFrameBitSet))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!needsFrameBitSet" " (" "Ancestors of nodes with frames to be " "constructed lazily should not have NEEDS_FRAME bit set" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5959 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!needsFrameBitSet" ") (" "Ancestors of nodes with frames to be " "constructed lazily should not have NEEDS_FRAME bit set" ")"); do { MOZ_CrashSequence(__null, 5959); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 5959 | "constructed lazily should not have NEEDS_FRAME bit set")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!needsFrameBitSet)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!needsFrameBitSet))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!needsFrameBitSet" " (" "Ancestors of nodes with frames to be " "constructed lazily should not have NEEDS_FRAME bit set" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 5959 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!needsFrameBitSet" ") (" "Ancestors of nodes with frames to be " "constructed lazily should not have NEEDS_FRAME bit set" ")"); do { MOZ_CrashSequence(__null, 5959); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5960 | } |
| 5961 | #endif |
| 5962 | |
| 5963 | // Returns true if this operation can be lazy, false if not. |
| 5964 | // |
| 5965 | // NOTE(emilio): This function assumes that the flattened tree |
| 5966 | // parent of all the appended children is the same, which holds because this |
| 5967 | // gets called after GetRangeInsertionPoint which notifies individually. |
| 5968 | void nsCSSFrameConstructor::ConstructLazily(nsIContent* aStartChild, |
| 5969 | nsIContent* aEndChild) { |
| 5970 | MOZ_ASSERT(aStartChild->GetParent())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStartChild->GetParent())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStartChild->GetParent()) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStartChild->GetParent()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5970); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aStartChild->GetParent()" ")"); do { MOZ_CrashSequence (__null, 5970); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 5971 | |
| 5972 | // We can construct lazily; just need to set suitable bits in the content |
| 5973 | // tree. |
| 5974 | Element* parent = aStartChild->GetFlattenedTreeParentElement(); |
| 5975 | if (!parent) { |
| 5976 | // Not part of the flat tree, nothing to do. |
| 5977 | return; |
| 5978 | } |
| 5979 | |
| 5980 | if (Servo_Element_IsDisplayNone(parent)) { |
| 5981 | // Nothing to do either. |
| 5982 | // |
| 5983 | // FIXME(emilio): This should be an assert, except for weird <frameset> |
| 5984 | // stuff that does its own frame construction. Such an assert would fire in |
| 5985 | // layout/style/crashtests/1411478.html, for example. |
| 5986 | return; |
| 5987 | } |
| 5988 | |
| 5989 | // Set NODE_NEEDS_FRAME on the new nodes. |
| 5990 | for (nsIContent* child = aStartChild; child != aEndChild; |
| 5991 | child = child->GetNextSibling()) { |
| 5992 | NS_ASSERTION(!child->GetPrimaryFrame() ||do { if (!(!child->GetPrimaryFrame() || child->GetPrimaryFrame ()->GetContent() != child)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "setting NEEDS_FRAME on a node that already has a frame?", "!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5997); MOZ_PretendNoReturn (); } } while (0) |
| 5993 | child->GetPrimaryFrame()->GetContent() != child,do { if (!(!child->GetPrimaryFrame() || child->GetPrimaryFrame ()->GetContent() != child)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "setting NEEDS_FRAME on a node that already has a frame?", "!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5997); MOZ_PretendNoReturn (); } } while (0) |
| 5994 | // XXX the child->GetPrimaryFrame()->GetContent() != childdo { if (!(!child->GetPrimaryFrame() || child->GetPrimaryFrame ()->GetContent() != child)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "setting NEEDS_FRAME on a node that already has a frame?", "!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5997); MOZ_PretendNoReturn (); } } while (0) |
| 5995 | // check is needed due to bug 135040. Remove it once that'sdo { if (!(!child->GetPrimaryFrame() || child->GetPrimaryFrame ()->GetContent() != child)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "setting NEEDS_FRAME on a node that already has a frame?", "!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5997); MOZ_PretendNoReturn (); } } while (0) |
| 5996 | // fixed.do { if (!(!child->GetPrimaryFrame() || child->GetPrimaryFrame ()->GetContent() != child)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "setting NEEDS_FRAME on a node that already has a frame?", "!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5997); MOZ_PretendNoReturn (); } } while (0) |
| 5997 | "setting NEEDS_FRAME on a node that already has a frame?")do { if (!(!child->GetPrimaryFrame() || child->GetPrimaryFrame ()->GetContent() != child)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "setting NEEDS_FRAME on a node that already has a frame?", "!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 5997); MOZ_PretendNoReturn (); } } while (0); |
| 5998 | child->SetFlags(NODE_NEEDS_FRAME); |
| 5999 | } |
| 6000 | |
| 6001 | CheckBitsForLazyFrameConstruction(parent); |
| 6002 | parent->NoteDescendantsNeedFramesForServo(); |
| 6003 | } |
| 6004 | |
| 6005 | void nsCSSFrameConstructor::IssueSingleInsertNofications( |
| 6006 | nsIContent* aStartChild, nsIContent* aEndChild, |
| 6007 | InsertionKind aInsertionKind) { |
| 6008 | for (nsIContent* child = aStartChild; child != aEndChild; |
| 6009 | child = child->GetNextSibling()) { |
| 6010 | // XXX the GetContent() != child check is needed due to bug 135040. |
| 6011 | // Remove it once that's fixed. |
| 6012 | MOZ_ASSERT(!child->GetPrimaryFrame() ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!child->GetPrimaryFrame() || child->GetPrimaryFrame ()->GetContent() != child)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 6013); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" ")"); do { MOZ_CrashSequence(__null, 6013); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6013 | child->GetPrimaryFrame()->GetContent() != child)do { static_assert( mozilla::detail::AssertionConditionType< decltype(!child->GetPrimaryFrame() || child->GetPrimaryFrame ()->GetContent() != child)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 6013); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" ")"); do { MOZ_CrashSequence(__null, 6013); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6014 | |
| 6015 | // Call ContentRangeInserted with this node. |
| 6016 | ContentRangeInserted(child, child->GetNextSibling(), aInsertionKind); |
| 6017 | } |
| 6018 | } |
| 6019 | |
| 6020 | nsCSSFrameConstructor::InsertionPoint |
| 6021 | nsCSSFrameConstructor::GetRangeInsertionPoint(nsIContent* aStartChild, |
| 6022 | nsIContent* aEndChild, |
| 6023 | InsertionKind aInsertionKind) { |
| 6024 | MOZ_ASSERT(aStartChild)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStartChild)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStartChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStartChild", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6024); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStartChild" ")"); do { MOZ_CrashSequence(__null, 6024); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6025 | MOZ_ASSERT(aStartChild->GetParentNode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStartChild->GetParentNode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStartChild->GetParentNode ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aStartChild->GetParentNode()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6025); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStartChild->GetParentNode()" ")"); do { MOZ_CrashSequence(__null, 6025); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6026 | |
| 6027 | // If the children of the container may be distributed to different insertion |
| 6028 | // points, insert them separately and bail out, letting ContentInserted handle |
| 6029 | // the mess. |
| 6030 | if (aStartChild->GetParentNode()->GetShadowRoot()) { |
| 6031 | IssueSingleInsertNofications(aStartChild, aEndChild, aInsertionKind); |
| 6032 | return {}; |
| 6033 | } |
| 6034 | |
| 6035 | #ifdef DEBUG1 |
| 6036 | { |
| 6037 | nsIContent* expectedParent = aStartChild->GetFlattenedTreeParent(); |
| 6038 | for (nsIContent* child = aStartChild->GetNextSibling(); child; |
| 6039 | child = child->GetNextSibling()) { |
| 6040 | MOZ_ASSERT(child->GetFlattenedTreeParent() == expectedParent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(child->GetFlattenedTreeParent() == expectedParent )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(child->GetFlattenedTreeParent() == expectedParent ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "child->GetFlattenedTreeParent() == expectedParent", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6040); AnnotateMozCrashReason("MOZ_ASSERT" "(" "child->GetFlattenedTreeParent() == expectedParent" ")"); do { MOZ_CrashSequence(__null, 6040); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6041 | } |
| 6042 | } |
| 6043 | #endif |
| 6044 | |
| 6045 | // Now the flattened tree parent of all the siblings is the same, just use the |
| 6046 | // same insertion point. |
| 6047 | return GetInsertionPoint(aStartChild); |
| 6048 | } |
| 6049 | |
| 6050 | bool nsCSSFrameConstructor::MaybeRecreateForFrameset(nsIFrame* aParentFrame, |
| 6051 | nsIContent* aStartChild, |
| 6052 | nsIContent* aEndChild) { |
| 6053 | if (aParentFrame->IsFrameSetFrame()) { |
| 6054 | // Check whether we have any kids we care about. |
| 6055 | for (nsIContent* cur = aStartChild; cur != aEndChild; |
| 6056 | cur = cur->GetNextSibling()) { |
| 6057 | if (IsSpecialFramesetChild(cur)) { |
| 6058 | // Just reframe the parent, since framesets are weird like that. |
| 6059 | RecreateFramesForContent(aParentFrame->GetContent(), |
| 6060 | InsertionKind::Async); |
| 6061 | return true; |
| 6062 | } |
| 6063 | } |
| 6064 | } |
| 6065 | return false; |
| 6066 | } |
| 6067 | |
| 6068 | void nsCSSFrameConstructor::LazilyStyleNewChildRange(nsIContent* aStartChild, |
| 6069 | nsIContent* aEndChild) { |
| 6070 | for (nsIContent* child = aStartChild; child != aEndChild; |
| 6071 | child = child->GetNextSibling()) { |
| 6072 | if (child->IsElement()) { |
| 6073 | child->AsElement()->NoteDirtyForServo(); |
| 6074 | } |
| 6075 | } |
| 6076 | } |
| 6077 | |
| 6078 | #ifdef DEBUG1 |
| 6079 | static bool IsFlattenedTreeChild(nsIContent* aParent, nsIContent* aChild) { |
| 6080 | FlattenedChildIterator iter(aParent); |
| 6081 | for (nsIContent* node = iter.GetNextChild(); node; |
| 6082 | node = iter.GetNextChild()) { |
| 6083 | if (node == aChild) { |
| 6084 | return true; |
| 6085 | } |
| 6086 | } |
| 6087 | return false; |
| 6088 | } |
| 6089 | #endif |
| 6090 | |
| 6091 | void nsCSSFrameConstructor::StyleNewChildRange(nsIContent* aStartChild, |
| 6092 | nsIContent* aEndChild) { |
| 6093 | ServoStyleSet* styleSet = mPresShell->StyleSet(); |
| 6094 | |
| 6095 | for (nsIContent* child = aStartChild; child != aEndChild; |
| 6096 | child = child->GetNextSibling()) { |
| 6097 | if (!child->IsElement()) { |
| 6098 | continue; |
| 6099 | } |
| 6100 | |
| 6101 | Element* childElement = child->AsElement(); |
| 6102 | |
| 6103 | // We only come in here from non-lazy frame construction, so the children |
| 6104 | // should be unstyled. |
| 6105 | MOZ_ASSERT(!childElement->HasServoData())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!childElement->HasServoData())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!childElement->HasServoData ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!childElement->HasServoData()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6105); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!childElement->HasServoData()" ")"); do { MOZ_CrashSequence(__null, 6105); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6106 | |
| 6107 | #ifdef DEBUG1 |
| 6108 | { |
| 6109 | // Furthermore, all of them should have the same flattened tree parent |
| 6110 | // (GetRangeInsertionPoint ensures it). And that parent should be styled, |
| 6111 | // otherwise we would've never found an insertion point at all. |
| 6112 | Element* parent = childElement->GetFlattenedTreeParentElement(); |
| 6113 | MOZ_ASSERT(parent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(parent)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(parent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("parent", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6113); AnnotateMozCrashReason("MOZ_ASSERT" "(" "parent" ")" ); do { MOZ_CrashSequence(__null, 6113); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6114 | MOZ_ASSERT(parent->HasServoData())do { static_assert( mozilla::detail::AssertionConditionType< decltype(parent->HasServoData())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(parent->HasServoData()))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("parent->HasServoData()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 6114); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "parent->HasServoData()" ")"); do { MOZ_CrashSequence (__null, 6114); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 6115 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsFlattenedTreeChild(parent, child))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsFlattenedTreeChild(parent, child)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("IsFlattenedTreeChild(parent, child)" " (" "GetFlattenedTreeParent and ChildIterator don't agree, fix this!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 6117 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsFlattenedTreeChild(parent, child)" ") (" "GetFlattenedTreeParent and ChildIterator don't agree, fix this!" ")"); do { MOZ_CrashSequence(__null, 6117); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6116 | IsFlattenedTreeChild(parent, child),do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsFlattenedTreeChild(parent, child))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsFlattenedTreeChild(parent, child)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("IsFlattenedTreeChild(parent, child)" " (" "GetFlattenedTreeParent and ChildIterator don't agree, fix this!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 6117 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsFlattenedTreeChild(parent, child)" ") (" "GetFlattenedTreeParent and ChildIterator don't agree, fix this!" ")"); do { MOZ_CrashSequence(__null, 6117); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6117 | "GetFlattenedTreeParent and ChildIterator don't agree, fix this!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsFlattenedTreeChild(parent, child))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsFlattenedTreeChild(parent, child)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("IsFlattenedTreeChild(parent, child)" " (" "GetFlattenedTreeParent and ChildIterator don't agree, fix this!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 6117 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsFlattenedTreeChild(parent, child)" ") (" "GetFlattenedTreeParent and ChildIterator don't agree, fix this!" ")"); do { MOZ_CrashSequence(__null, 6117); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6118 | } |
| 6119 | #endif |
| 6120 | |
| 6121 | styleSet->StyleNewSubtree(childElement); |
| 6122 | } |
| 6123 | } |
| 6124 | |
| 6125 | // This is a bit slow, but sometimes we need it. |
| 6126 | static bool ParentIsWrapperAnonBox(nsIFrame* aParent) { |
| 6127 | nsIFrame* maybeAnonBox = aParent; |
| 6128 | if (maybeAnonBox->Style()->GetPseudoType() == |
| 6129 | PseudoStyleType::MozCellContent) { |
| 6130 | // The thing that would maybe be a wrapper anon box is the cell. |
| 6131 | maybeAnonBox = maybeAnonBox->GetParent(); |
| 6132 | } |
| 6133 | return maybeAnonBox->Style()->IsWrapperAnonBox(); |
| 6134 | } |
| 6135 | |
| 6136 | void nsCSSFrameConstructor::ContentAppended(nsIContent* aFirstNewContent, |
| 6137 | InsertionKind aInsertionKind) { |
| 6138 | return ContentRangeInserted(aFirstNewContent, nullptr, aInsertionKind); |
| 6139 | } |
| 6140 | |
| 6141 | void nsCSSFrameConstructor::ContentInserted(nsIContent* aChild, |
| 6142 | InsertionKind aInsertionKind) { |
| 6143 | ContentRangeInserted(aChild, aChild->GetNextSibling(), aInsertionKind); |
| 6144 | } |
| 6145 | |
| 6146 | // It's very likely that we don't have any existing captions (because we only |
| 6147 | // render one of them, see bug 144517). We also don't fragment table captions. |
| 6148 | // So, prefer just walking the existing captions and searching it, rather than |
| 6149 | // adding a special GetInsertionPrevSibling() version that skips everything but |
| 6150 | // table captions. |
| 6151 | static nsIFrame* FindCaptionPrevSibling(nsTableWrapperFrame* aTable, |
| 6152 | nsIContent* aCaptionContent) { |
| 6153 | nsIFrame* prevSibling = aTable->InnerTableFrame(); |
| 6154 | if (nsIFrame* firstCaption = prevSibling->GetNextSibling()) { |
| 6155 | nsContentUtils::NodeIndexCache cache; |
| 6156 | for (auto* caption = firstCaption; caption; |
| 6157 | caption = caption->GetNextSibling()) { |
| 6158 | if (nsContentUtils::CompareTreePosition<TreeKind::Flat>( |
| 6159 | caption->GetContent(), aCaptionContent, nullptr, &cache) >= 0) { |
| 6160 | break; |
| 6161 | } |
| 6162 | prevSibling = caption; |
| 6163 | } |
| 6164 | } |
| 6165 | return prevSibling; |
| 6166 | } |
| 6167 | |
| 6168 | // ContentRangeInserted handles creating frames for a range of nodes that |
| 6169 | // might not be at the end of their childlist. ContentRangeInserted isn't a real |
| 6170 | // content notification, but rather it handles regular ContentInserted calls |
| 6171 | // for a single node as well as the lazy construction of frames for a range of |
| 6172 | // nodes when called from CreateNeededFrames. For a range of nodes to be |
| 6173 | // suitable to have its frames constructed all at once they must meet the same |
| 6174 | // conditions that ContentAppended imposes (GetRangeInsertionPoint checks |
| 6175 | // these), plus more. |
| 6176 | void nsCSSFrameConstructor::ContentRangeInserted(nsIContent* aStartChild, |
| 6177 | nsIContent* aEndChild, |
| 6178 | InsertionKind aInsertionKind) { |
| 6179 | AUTO_PROFILER_LABEL_HOT("nsCSSFrameConstructor::ContentRangeInserted",mozilla::AutoProfilerLabelHot raiiObject6180( "nsCSSFrameConstructor::ContentRangeInserted" , nullptr, JS::ProfilingCategoryPair::LAYOUT_FrameConstruction ) |
| 6180 | LAYOUT_FrameConstruction)mozilla::AutoProfilerLabelHot raiiObject6180( "nsCSSFrameConstructor::ContentRangeInserted" , nullptr, JS::ProfilingCategoryPair::LAYOUT_FrameConstruction ); |
| 6181 | AUTO_LAYOUT_PHASE_ENTRY_POINT(mPresShell->GetPresContext(), FrameC)nsAutoLayoutPhase autoLayoutPhase((mPresShell->GetPresContext ()), (nsLayoutPhase::FrameC)); |
| 6182 | |
| 6183 | MOZ_ASSERT(aStartChild, "must always pass a child")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStartChild)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStartChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStartChild" " (" "must always pass a child" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6183); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStartChild" ") (" "must always pass a child" ")"); do { MOZ_CrashSequence (__null, 6183); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 6184 | |
| 6185 | #ifdef DEBUG1 |
| 6186 | if (gNoisyContentUpdates) { |
| 6187 | printf( |
| 6188 | "nsCSSFrameConstructor::ContentRangeInserted container=%p " |
| 6189 | "start-child=%p end-child=%p lazy=%d\n", |
| 6190 | aStartChild->GetParent(), aStartChild, aEndChild, |
| 6191 | aInsertionKind == InsertionKind::Async); |
| 6192 | if (gReallyNoisyContentUpdates) { |
| 6193 | if (aStartChild->GetParent()) { |
| 6194 | aStartChild->GetParent()->List(stdoutstdout, 0); |
| 6195 | } else { |
| 6196 | aStartChild->List(stdoutstdout, 0); |
| 6197 | } |
| 6198 | } |
| 6199 | } |
| 6200 | |
| 6201 | for (nsIContent* child = aStartChild; child != aEndChild; |
| 6202 | child = child->GetNextSibling()) { |
| 6203 | // XXX the GetContent() != child check is needed due to bug 135040. |
| 6204 | // Remove it once that's fixed. |
| 6205 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(!child->GetPrimaryFrame() || child->GetPrimaryFrame ()->GetContent() != child)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" " (" "asked to construct a frame for a node that already has a frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 6208 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" ") (" "asked to construct a frame for a node that already has a frame" ")"); do { MOZ_CrashSequence(__null, 6208); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6206 | !child->GetPrimaryFrame() ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!child->GetPrimaryFrame() || child->GetPrimaryFrame ()->GetContent() != child)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" " (" "asked to construct a frame for a node that already has a frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 6208 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" ") (" "asked to construct a frame for a node that already has a frame" ")"); do { MOZ_CrashSequence(__null, 6208); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6207 | child->GetPrimaryFrame()->GetContent() != child,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!child->GetPrimaryFrame() || child->GetPrimaryFrame ()->GetContent() != child)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" " (" "asked to construct a frame for a node that already has a frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 6208 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" ") (" "asked to construct a frame for a node that already has a frame" ")"); do { MOZ_CrashSequence(__null, 6208); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6208 | "asked to construct a frame for a node that already has a frame")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!child->GetPrimaryFrame() || child->GetPrimaryFrame ()->GetContent() != child)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" " (" "asked to construct a frame for a node that already has a frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 6208 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!child->GetPrimaryFrame() || child->GetPrimaryFrame()->GetContent() != child" ") (" "asked to construct a frame for a node that already has a frame" ")"); do { MOZ_CrashSequence(__null, 6208); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6209 | } |
| 6210 | #endif |
| 6211 | |
| 6212 | // If we have a null parent, then this must be the document element being |
| 6213 | // inserted, or some other child of the document in the DOM (might be a |
| 6214 | // processing instruction or comment). |
| 6215 | if (!aStartChild->GetParent()) { |
| 6216 | Element* docElement = mDocument->GetRootElement(); |
| 6217 | const bool foundRoot = [&] { |
| 6218 | for (nsIContent* cur = aStartChild; cur != aEndChild; |
| 6219 | cur = cur->GetNextSibling()) { |
| 6220 | if (cur == docElement) { |
| 6221 | return true; |
| 6222 | } |
| 6223 | } |
| 6224 | return false; |
| 6225 | }(); |
| 6226 | |
| 6227 | if (!foundRoot) { |
| 6228 | // Not the root element (could be e.g. a comment), just bail out |
| 6229 | return; |
| 6230 | } |
| 6231 | |
| 6232 | MOZ_ASSERT(!mRootElementFrame, "root element frame already created")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mRootElementFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mRootElementFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mRootElementFrame" " (" "root element frame already created" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6232); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mRootElementFrame" ") (" "root element frame already created" ")"); do { MOZ_CrashSequence (__null, 6232); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 6233 | if (aInsertionKind == InsertionKind::Async) { |
| 6234 | docElement->SetFlags(NODE_NEEDS_FRAME); |
| 6235 | LazilyStyleNewChildRange(docElement, nullptr); |
| 6236 | return; |
| 6237 | } |
| 6238 | |
| 6239 | // Create frames for the document element and its child elements |
| 6240 | if (ConstructDocElementFrame(docElement)) { |
| 6241 | InvalidateCanvasIfNeeded(mPresShell, docElement); |
| 6242 | #ifdef DEBUG1 |
| 6243 | if (gReallyNoisyContentUpdates) { |
| 6244 | printf( |
| 6245 | "nsCSSFrameConstructor::ContentRangeInserted: resulting frame " |
| 6246 | "model:\n"); |
| 6247 | mRootElementFrame->List(stdoutstdout); |
| 6248 | } |
| 6249 | #endif |
| 6250 | } |
| 6251 | |
| 6252 | #ifdef ACCESSIBILITY1 |
| 6253 | if (nsAccessibilityService* accService = GetAccService()) { |
| 6254 | accService->ContentRangeInserted(mPresShell, aStartChild, aEndChild); |
| 6255 | } |
| 6256 | #endif |
| 6257 | return; |
| 6258 | } |
| 6259 | |
| 6260 | const bool isSingleInsert = aStartChild->GetNextSibling() == aEndChild; |
| 6261 | InsertionPoint insertion; |
| 6262 | if (isSingleInsert) { |
| 6263 | // See if we have a Shadow DOM insertion point. If so, then that's our real |
| 6264 | // parent frame; if not, then the frame hasn't been built yet and we just |
| 6265 | // bail. |
| 6266 | insertion = GetInsertionPoint(aStartChild); |
| 6267 | } else { |
| 6268 | // Get our insertion point. If we need to issue single ContentInserteds |
| 6269 | // GetRangeInsertionPoint will take care of that for us. |
| 6270 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 6271 | insertion = GetRangeInsertionPoint(aStartChild, aEndChild, aInsertionKind); |
| 6272 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6273 | } |
| 6274 | |
| 6275 | if (!insertion.mParentFrame) { |
| 6276 | // We're punting on frame construction because there's no container frame. |
| 6277 | // The Servo-backed style system handles this case like the lazy frame |
| 6278 | // construction case, except when we're already constructing frames, in |
| 6279 | // which case we shouldn't need to do anything else. |
| 6280 | if (aInsertionKind == InsertionKind::Async) { |
| 6281 | LazilyStyleNewChildRange(aStartChild, aEndChild); |
| 6282 | } |
| 6283 | return; |
| 6284 | } |
| 6285 | |
| 6286 | if (aInsertionKind == InsertionKind::Async) { |
| 6287 | ConstructLazily(aStartChild, aEndChild); |
| 6288 | LazilyStyleNewChildRange(aStartChild, aEndChild); |
| 6289 | return; |
| 6290 | } |
| 6291 | |
| 6292 | bool isAppend; |
| 6293 | nsIFrame* prevSibling = |
| 6294 | GetInsertionPrevSibling(&insertion, aStartChild, &isAppend); |
| 6295 | |
| 6296 | LayoutFrameType frameType = insertion.mParentFrame->Type(); |
| 6297 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 6298 | if (MaybeRecreateForFrameset(insertion.mParentFrame, aStartChild, |
| 6299 | aEndChild)) { |
| 6300 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6301 | return; |
| 6302 | } |
| 6303 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6304 | |
| 6305 | // Don't construct kids of leaves |
| 6306 | if (insertion.mParentFrame->IsLeaf()) { |
| 6307 | // Clear lazy bits so we don't try to construct again. |
| 6308 | ClearLazyBits(aStartChild, aEndChild); |
| 6309 | return; |
| 6310 | } |
| 6311 | |
| 6312 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 6313 | if (WipeInsertionParent(insertion.mParentFrame)) { |
| 6314 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6315 | return; |
| 6316 | } |
| 6317 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6318 | |
| 6319 | nsFrameConstructorState state( |
| 6320 | mPresShell, GetAbsoluteContainingBlock(insertion.mParentFrame, FIXED_POS), |
| 6321 | GetAbsoluteContainingBlock(insertion.mParentFrame, ABS_POS), |
| 6322 | GetFloatContainingBlock(insertion.mParentFrame)); |
| 6323 | |
| 6324 | // Recover state for the containing block - we need to know if |
| 6325 | // it has :first-letter or :first-line style applied to it. The |
| 6326 | // reason we care is that the internal structure in these cases |
| 6327 | // is not the normal structure and requires custom updating |
| 6328 | // logic. |
| 6329 | nsContainerFrame* containingBlock = state.mFloatedList.mContainingBlock; |
| 6330 | bool haveFirstLetterStyle = false; |
| 6331 | bool haveFirstLineStyle = false; |
| 6332 | |
| 6333 | // In order to shave off some cycles, we only dig up the |
| 6334 | // containing block haveFirst* flags if the parent frame where |
| 6335 | // the insertion/append is occurring is an inline or block |
| 6336 | // container. For other types of containers this isn't relevant. |
| 6337 | StyleDisplayInside parentDisplayInside = |
| 6338 | insertion.mParentFrame->StyleDisplay()->DisplayInside(); |
| 6339 | |
| 6340 | // Examine the insertion.mParentFrame where the insertion is taking |
| 6341 | // place. If it's a certain kind of container then some special |
| 6342 | // processing is done. |
| 6343 | if (StyleDisplayInside::Flow == parentDisplayInside) { |
| 6344 | // Recover the special style flags for the containing block |
| 6345 | if (containingBlock) { |
| 6346 | haveFirstLetterStyle = HasFirstLetterStyle(containingBlock); |
| 6347 | haveFirstLineStyle = ShouldHaveFirstLineStyle( |
| 6348 | containingBlock->GetContent(), containingBlock->Style()); |
| 6349 | } |
| 6350 | |
| 6351 | if (haveFirstLetterStyle) { |
| 6352 | // If our current insertion.mParentFrame is a Letter frame, use its parent |
| 6353 | // as our new parent hint |
| 6354 | if (insertion.mParentFrame->IsLetterFrame()) { |
| 6355 | // If insertion.mParentFrame is out of flow, then we actually want the |
| 6356 | // parent of the placeholder frame. |
| 6357 | if (insertion.mParentFrame->HasAnyStateBits(NS_FRAME_OUT_OF_FLOW)) { |
| 6358 | nsPlaceholderFrame* placeholderFrame = |
| 6359 | insertion.mParentFrame->GetPlaceholderFrame(); |
| 6360 | NS_ASSERTION(placeholderFrame, "No placeholder for out-of-flow?")do { if (!(placeholderFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "No placeholder for out-of-flow?", "placeholderFrame", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6360); MOZ_PretendNoReturn(); } } while (0); |
| 6361 | insertion.mParentFrame = placeholderFrame->GetParent(); |
| 6362 | } else { |
| 6363 | insertion.mParentFrame = insertion.mParentFrame->GetParent(); |
| 6364 | } |
| 6365 | } |
| 6366 | |
| 6367 | // Remove the old letter frames before doing the insertion |
| 6368 | RemoveLetterFrames(mPresShell, state.mFloatedList.mContainingBlock); |
| 6369 | |
| 6370 | // Removing the letterframes messes around with the frame tree, removing |
| 6371 | // and creating frames. We need to reget our prevsibling, parent frame, |
| 6372 | // etc. |
| 6373 | prevSibling = GetInsertionPrevSibling(&insertion, aStartChild, &isAppend); |
| 6374 | frameType = insertion.mParentFrame->Type(); |
| 6375 | } |
| 6376 | } |
| 6377 | |
| 6378 | // This handles fallback to 'list-style-type' when a 'list-style-image' fails |
| 6379 | // to load. |
| 6380 | if (aStartChild->IsInNativeAnonymousSubtree() && |
| 6381 | aStartChild->IsHTMLElement(nsGkAtoms::mozgeneratedcontentimage)) { |
| 6382 | MOZ_ASSERT(isSingleInsert)do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSingleInsert)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(isSingleInsert))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("isSingleInsert" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 6382); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "isSingleInsert" ")"); do { MOZ_CrashSequence (__null, 6382); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 6383 | MOZ_ASSERT(insertion.mParentFrame->Style()->GetPseudoType() ==do { static_assert( mozilla::detail::AssertionConditionType< decltype(insertion.mParentFrame->Style()->GetPseudoType () == PseudoStyleType::Marker)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(insertion.mParentFrame->Style ()->GetPseudoType() == PseudoStyleType::Marker))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("insertion.mParentFrame->Style()->GetPseudoType() == PseudoStyleType::Marker" " (" "we can only handle ::marker fallback for now" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6385); AnnotateMozCrashReason("MOZ_ASSERT" "(" "insertion.mParentFrame->Style()->GetPseudoType() == PseudoStyleType::Marker" ") (" "we can only handle ::marker fallback for now" ")"); do { MOZ_CrashSequence(__null, 6385); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 6384 | PseudoStyleType::Marker,do { static_assert( mozilla::detail::AssertionConditionType< decltype(insertion.mParentFrame->Style()->GetPseudoType () == PseudoStyleType::Marker)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(insertion.mParentFrame->Style ()->GetPseudoType() == PseudoStyleType::Marker))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("insertion.mParentFrame->Style()->GetPseudoType() == PseudoStyleType::Marker" " (" "we can only handle ::marker fallback for now" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6385); AnnotateMozCrashReason("MOZ_ASSERT" "(" "insertion.mParentFrame->Style()->GetPseudoType() == PseudoStyleType::Marker" ") (" "we can only handle ::marker fallback for now" ")"); do { MOZ_CrashSequence(__null, 6385); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 6385 | "we can only handle ::marker fallback for now")do { static_assert( mozilla::detail::AssertionConditionType< decltype(insertion.mParentFrame->Style()->GetPseudoType () == PseudoStyleType::Marker)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(insertion.mParentFrame->Style ()->GetPseudoType() == PseudoStyleType::Marker))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("insertion.mParentFrame->Style()->GetPseudoType() == PseudoStyleType::Marker" " (" "we can only handle ::marker fallback for now" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6385); AnnotateMozCrashReason("MOZ_ASSERT" "(" "insertion.mParentFrame->Style()->GetPseudoType() == PseudoStyleType::Marker" ") (" "we can only handle ::marker fallback for now" ")"); do { MOZ_CrashSequence(__null, 6385); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 6386 | nsIContent* const nextSibling = aStartChild->GetNextSibling(); |
| 6387 | MOZ_ASSERT(nextSibling && nextSibling->IsText(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(nextSibling && nextSibling->IsText())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(nextSibling && nextSibling->IsText()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("nextSibling && nextSibling->IsText()" " (" "expected a text node after the list-style-image image" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 6388 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "nextSibling && nextSibling->IsText()" ") (" "expected a text node after the list-style-image image" ")"); do { MOZ_CrashSequence(__null, 6388); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6388 | "expected a text node after the list-style-image image")do { static_assert( mozilla::detail::AssertionConditionType< decltype(nextSibling && nextSibling->IsText())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(nextSibling && nextSibling->IsText()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("nextSibling && nextSibling->IsText()" " (" "expected a text node after the list-style-image image" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 6388 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "nextSibling && nextSibling->IsText()" ") (" "expected a text node after the list-style-image image" ")"); do { MOZ_CrashSequence(__null, 6388); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6389 | DestroyContext context(mPresShell); |
| 6390 | RemoveFrame(context, FrameChildListID::Principal, |
| 6391 | nextSibling->GetPrimaryFrame()); |
| 6392 | auto* const container = aStartChild->GetParent()->AsElement(); |
| 6393 | nsIContent* firstNewChild = nullptr; |
| 6394 | auto InsertChild = [this, container, nextSibling, |
| 6395 | &firstNewChild](RefPtr<nsIContent>&& aChild) { |
| 6396 | // We don't strictly have to set NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE |
| 6397 | // here; it would get set under AppendChildTo. But AppendChildTo might |
| 6398 | // think that we're going from not being anonymous to being anonymous and |
| 6399 | // do some extra work; setting the flag here avoids that. |
| 6400 | aChild->SetFlags(NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE); |
| 6401 | container->InsertChildBefore(aChild, nextSibling, false, IgnoreErrors()); |
| 6402 | if (auto* childElement = Element::FromNode(aChild)) { |
| 6403 | // If we created any children elements, Servo needs to traverse them, |
| 6404 | // but the root is already set up. |
| 6405 | mPresShell->StyleSet()->StyleNewSubtree(childElement); |
| 6406 | } |
| 6407 | if (!firstNewChild) { |
| 6408 | firstNewChild = aChild; |
| 6409 | } |
| 6410 | }; |
| 6411 | CreateGeneratedContentFromListStyleType( |
| 6412 | state, *insertion.mContainer->AsElement(), |
| 6413 | *insertion.mParentFrame->Style(), InsertChild); |
| 6414 | if (!firstNewChild) { |
| 6415 | // No fallback content - we're done. |
| 6416 | return; |
| 6417 | } |
| 6418 | aStartChild = firstNewChild; |
| 6419 | MOZ_ASSERT(firstNewChild->GetNextSibling() == nextSibling,do { static_assert( mozilla::detail::AssertionConditionType< decltype(firstNewChild->GetNextSibling() == nextSibling)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(firstNewChild->GetNextSibling() == nextSibling))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("firstNewChild->GetNextSibling() == nextSibling" " (" "list-style-type should only create one child" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6420); AnnotateMozCrashReason("MOZ_ASSERT" "(" "firstNewChild->GetNextSibling() == nextSibling" ") (" "list-style-type should only create one child" ")"); do { MOZ_CrashSequence(__null, 6420); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 6420 | "list-style-type should only create one child")do { static_assert( mozilla::detail::AssertionConditionType< decltype(firstNewChild->GetNextSibling() == nextSibling)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(firstNewChild->GetNextSibling() == nextSibling))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("firstNewChild->GetNextSibling() == nextSibling" " (" "list-style-type should only create one child" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6420); AnnotateMozCrashReason("MOZ_ASSERT" "(" "firstNewChild->GetNextSibling() == nextSibling" ") (" "list-style-type should only create one child" ")"); do { MOZ_CrashSequence(__null, 6420); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 6421 | } |
| 6422 | |
| 6423 | AutoFrameConstructionItemList items(this); |
| 6424 | RefPtr<ComputedStyle> parentStyle = |
| 6425 | ResolveComputedStyle(insertion.mContainer); |
| 6426 | ParentType parentType = GetParentType(frameType); |
| 6427 | FlattenedChildIterator iter(insertion.mContainer); |
| 6428 | const bool haveNoShadowDOM = |
| 6429 | !iter.ShadowDOMInvolved() || !iter.GetNextChild(); |
| 6430 | if (aStartChild->GetPreviousSibling() && parentType == eTypeBlock && |
| 6431 | haveNoShadowDOM) { |
| 6432 | // If there's a text node in the normal content list just before the |
| 6433 | // new nodes, and it has no frame, make a frame construction item for |
| 6434 | // it, because it might need a frame now. No need to do this if our |
| 6435 | // parent type is not block, though, since WipeContainingBlock |
| 6436 | // already handles that situation. |
| 6437 | AddTextItemIfNeeded(state, *parentStyle, insertion, |
| 6438 | aStartChild->GetPreviousSibling(), items); |
| 6439 | } |
| 6440 | |
| 6441 | const bool suppressWhiteSpaceOptimizations = |
| 6442 | isSingleInsert && aStartChild->IsRootOfNativeAnonymousSubtree(); |
| 6443 | for (nsIContent* child = aStartChild; child != aEndChild; |
| 6444 | child = child->GetNextSibling()) { |
| 6445 | AddFrameConstructionItems(state, child, suppressWhiteSpaceOptimizations, |
| 6446 | *parentStyle, insertion, items); |
| 6447 | } |
| 6448 | |
| 6449 | if (aEndChild && parentType == eTypeBlock && haveNoShadowDOM) { |
| 6450 | // If there's a text node in the normal content list just after the |
| 6451 | // new nodes, and it has no frame, make a frame construction item for |
| 6452 | // it, because it might need a frame now. No need to do this if our |
| 6453 | // parent type is not block, though, since WipeContainingBlock |
| 6454 | // already handles that situation. |
| 6455 | AddTextItemIfNeeded(state, *parentStyle, insertion, aEndChild, items); |
| 6456 | } |
| 6457 | |
| 6458 | // Perform special check for diddling around with the frames in a special |
| 6459 | // inline frame. If we're appending before :after content, then we're not |
| 6460 | // really appending, so let WipeContainingBlock know that. |
| 6461 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 6462 | if (WipeContainingBlock(state, containingBlock, insertion.mParentFrame, items, |
| 6463 | isAppend, prevSibling)) { |
| 6464 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6465 | return; |
| 6466 | } |
| 6467 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6468 | |
| 6469 | // If the parent is a block frame, and we're not in a special case |
| 6470 | // where frames can be moved around, determine if the list is for the |
| 6471 | // start or end of the block. |
| 6472 | if (insertion.mParentFrame->IsBlockFrameOrSubclass() && |
| 6473 | !haveFirstLetterStyle && !haveFirstLineStyle && |
| 6474 | !IsFramePartOfIBSplit(insertion.mParentFrame)) { |
| 6475 | items.SetLineBoundaryAtStart(!prevSibling || |
| 6476 | !prevSibling->IsInlineOutside() || |
| 6477 | prevSibling->IsBrFrame()); |
| 6478 | auto* nextSibling = |
| 6479 | ::GetInsertNextSibling(insertion.mParentFrame, prevSibling); |
| 6480 | items.SetLineBoundaryAtEnd(!nextSibling || |
| 6481 | !nextSibling->IsInlineOutside() || |
| 6482 | nextSibling->IsBrFrame()); |
| 6483 | } |
| 6484 | // To suppress whitespace-only text frames, we have to verify that |
| 6485 | // our container's DOM child list matches its flattened tree child list. |
| 6486 | items.SetParentHasNoShadowDOM(haveNoShadowDOM); |
| 6487 | |
| 6488 | nsFrameConstructorSaveState floatSaveState; |
| 6489 | state.MaybePushFloatContainingBlock(insertion.mParentFrame, floatSaveState); |
| 6490 | |
| 6491 | if (state.mPresContext->IsPaginated()) { |
| 6492 | // Because this function can be called outside frame construction, we need |
| 6493 | // to set state.mAutoPageNameValue based on what the parent frame's auto |
| 6494 | // value is. |
| 6495 | // Calling this from outside the frame constructor can violate many of the |
| 6496 | // expectations in AutoFrameConstructionPageName, and unlike during frame |
| 6497 | // construction we already have an auto value from parentFrame, so we do |
| 6498 | // not use AutoFrameConstructionPageName here. |
| 6499 | state.mAutoPageNameValue = insertion.mParentFrame->GetAutoPageValue(); |
| 6500 | #ifdef DEBUG1 |
| 6501 | insertion.mParentFrame->mWasVisitedByAutoFrameConstructionPageName = true; |
| 6502 | #endif |
| 6503 | } |
| 6504 | |
| 6505 | // If the container is a table and a caption will be appended, it needs to be |
| 6506 | // put in the table wrapper frame's additional child list. |
| 6507 | // We make no attempt here to set flags to indicate whether the list |
| 6508 | // will be at the start or end of a block. It doesn't seem worthwhile. |
| 6509 | nsFrameList frameList, captionList; |
| 6510 | ConstructFramesFromItemList(state, items, insertion.mParentFrame, |
| 6511 | ParentIsWrapperAnonBox(insertion.mParentFrame), |
| 6512 | frameList); |
| 6513 | |
| 6514 | if (frameList.NotEmpty()) { |
| 6515 | for (nsIContent* child = aStartChild; child != aEndChild; |
| 6516 | child = child->GetNextSibling()) { |
| 6517 | InvalidateCanvasIfNeeded(mPresShell, child); |
| 6518 | } |
| 6519 | |
| 6520 | if (LayoutFrameType::Table == frameType || |
| 6521 | LayoutFrameType::TableWrapper == frameType) { |
| 6522 | PullOutCaptionFrames(frameList, captionList); |
| 6523 | if (prevSibling && prevSibling->IsTableCaption()) { |
| 6524 | // This can happen, but only if the table is empty (otherwise |
| 6525 | // SafeToInsertPseudoNeedingChildren bails). |
| 6526 | prevSibling = nullptr; |
| 6527 | } |
| 6528 | } |
| 6529 | } |
| 6530 | |
| 6531 | if (haveFirstLineStyle && insertion.mParentFrame == containingBlock && |
| 6532 | isAppend) { |
| 6533 | // It's possible that the new frame goes into a first-line |
| 6534 | // frame. Look at it and see... |
| 6535 | AppendFirstLineFrames(state, containingBlock->GetContent(), containingBlock, |
| 6536 | frameList); |
| 6537 | } else if (insertion.mParentFrame->Style()->IsInFirstLineSubtree()) { |
| 6538 | CheckForFirstLineInsertion(insertion.mParentFrame, frameList); |
| 6539 | CheckForFirstLineInsertion(insertion.mParentFrame, captionList); |
| 6540 | } |
| 6541 | |
| 6542 | // We might have captions; put them into the principal child list of the table |
| 6543 | // wrapper frame. |
| 6544 | if (captionList.NotEmpty()) { |
| 6545 | NS_ASSERTION(LayoutFrameType::Table == frameType ||do { if (!(LayoutFrameType::Table == frameType || LayoutFrameType ::TableWrapper == frameType)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "parent for caption is not table?", "LayoutFrameType::Table == frameType || LayoutFrameType::TableWrapper == frameType" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 6547); MOZ_PretendNoReturn (); } } while (0) |
| 6546 | LayoutFrameType::TableWrapper == frameType,do { if (!(LayoutFrameType::Table == frameType || LayoutFrameType ::TableWrapper == frameType)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "parent for caption is not table?", "LayoutFrameType::Table == frameType || LayoutFrameType::TableWrapper == frameType" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 6547); MOZ_PretendNoReturn (); } } while (0) |
| 6547 | "parent for caption is not table?")do { if (!(LayoutFrameType::Table == frameType || LayoutFrameType ::TableWrapper == frameType)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "parent for caption is not table?", "LayoutFrameType::Table == frameType || LayoutFrameType::TableWrapper == frameType" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 6547); MOZ_PretendNoReturn (); } } while (0); |
| 6548 | // We need to determine where to put the caption items; start with the |
| 6549 | // the parent frame that has already been determined and get the insertion |
| 6550 | // prevsibling of the first caption item. |
| 6551 | nsContainerFrame* outerTable = insertion.mParentFrame->IsTableFrame() |
| 6552 | ? insertion.mParentFrame->GetParent() |
| 6553 | : insertion.mParentFrame; |
| 6554 | |
| 6555 | // If the parent is not a table wrapper frame we will try to add frames |
| 6556 | // to a named child list that the parent does not honor and the frames |
| 6557 | // will get lost. |
| 6558 | MOZ_ASSERT(outerTable->IsTableWrapperFrame(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(outerTable->IsTableWrapperFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(outerTable->IsTableWrapperFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("outerTable->IsTableWrapperFrame()" " (" "Pseudo frame construction failure; " "a caption can be only a child of a table wrapper frame" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 6560); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "outerTable->IsTableWrapperFrame()" ") (" "Pseudo frame construction failure; " "a caption can be only a child of a table wrapper frame" ")"); do { MOZ_CrashSequence(__null, 6560); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6559 | "Pseudo frame construction failure; "do { static_assert( mozilla::detail::AssertionConditionType< decltype(outerTable->IsTableWrapperFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(outerTable->IsTableWrapperFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("outerTable->IsTableWrapperFrame()" " (" "Pseudo frame construction failure; " "a caption can be only a child of a table wrapper frame" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 6560); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "outerTable->IsTableWrapperFrame()" ") (" "Pseudo frame construction failure; " "a caption can be only a child of a table wrapper frame" ")"); do { MOZ_CrashSequence(__null, 6560); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6560 | "a caption can be only a child of a table wrapper frame")do { static_assert( mozilla::detail::AssertionConditionType< decltype(outerTable->IsTableWrapperFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(outerTable->IsTableWrapperFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("outerTable->IsTableWrapperFrame()" " (" "Pseudo frame construction failure; " "a caption can be only a child of a table wrapper frame" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 6560); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "outerTable->IsTableWrapperFrame()" ") (" "Pseudo frame construction failure; " "a caption can be only a child of a table wrapper frame" ")"); do { MOZ_CrashSequence(__null, 6560); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6561 | |
| 6562 | nsIFrame* captionPrevSibling = |
| 6563 | FindCaptionPrevSibling(static_cast<nsTableWrapperFrame*>(outerTable), |
| 6564 | captionList.FirstChild()->GetContent()); |
| 6565 | captionList.ApplySetParent(outerTable); |
| 6566 | if (!captionPrevSibling->GetNextSibling()) { |
| 6567 | AppendFrames(outerTable, FrameChildListID::Principal, |
| 6568 | std::move(captionList)); |
| 6569 | } else { |
| 6570 | InsertFrames(outerTable, FrameChildListID::Principal, captionPrevSibling, |
| 6571 | std::move(captionList)); |
| 6572 | } |
| 6573 | } |
| 6574 | |
| 6575 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 6576 | if (MaybeRecreateForColumnSpan(state, insertion.mParentFrame, frameList, |
| 6577 | prevSibling)) { |
| 6578 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6579 | return; |
| 6580 | } |
| 6581 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6582 | |
| 6583 | if (frameList.NotEmpty()) { |
| 6584 | // Notify the parent frame |
| 6585 | if (isAppend) { |
| 6586 | AppendFramesToParent(state, insertion.mParentFrame, frameList, |
| 6587 | prevSibling); |
| 6588 | } else { |
| 6589 | InsertFrames(insertion.mParentFrame, FrameChildListID::Principal, |
| 6590 | prevSibling, std::move(frameList)); |
| 6591 | } |
| 6592 | } |
| 6593 | |
| 6594 | if (haveFirstLetterStyle) { |
| 6595 | // Recover the letter frames for the containing block when |
| 6596 | // it has first-letter style. |
| 6597 | RecoverLetterFrames(state.mFloatedList.mContainingBlock); |
| 6598 | } |
| 6599 | |
| 6600 | #ifdef DEBUG1 |
| 6601 | if (gReallyNoisyContentUpdates && insertion.mParentFrame) { |
| 6602 | printf( |
| 6603 | "nsCSSFrameConstructor::ContentRangeInserted: resulting frame " |
| 6604 | "model:\n"); |
| 6605 | insertion.mParentFrame->List(stdoutstdout); |
| 6606 | } |
| 6607 | #endif |
| 6608 | |
| 6609 | #ifdef ACCESSIBILITY1 |
| 6610 | if (nsAccessibilityService* accService = GetAccService()) { |
| 6611 | accService->ContentRangeInserted(mPresShell, aStartChild, aEndChild); |
| 6612 | } |
| 6613 | #endif |
| 6614 | } |
| 6615 | |
| 6616 | static bool IsWhitespaceFrame(const nsIFrame* aFrame) { |
| 6617 | MOZ_ASSERT(aFrame, "invalid argument")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame" " (" "invalid argument" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 6617 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ") (" "invalid argument" ")"); do { MOZ_CrashSequence(__null, 6617); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6618 | return aFrame->IsTextFrame() && aFrame->GetContent()->TextIsOnlyWhitespace(); |
| 6619 | } |
| 6620 | |
| 6621 | static bool IsSyntheticColGroup(const nsIFrame* aFrame) { |
| 6622 | return aFrame->IsTableColGroupFrame() && |
| 6623 | static_cast<const nsTableColGroupFrame*>(aFrame)->IsSynthetic(); |
| 6624 | } |
| 6625 | |
| 6626 | static bool IsOnlyNonWhitespaceFrameInList( |
| 6627 | const nsFrameList& aFrameList, const nsIFrame* aFrame, |
| 6628 | const nsIFrame* aIgnoreFrame = nullptr) { |
| 6629 | for (const nsIFrame* f : aFrameList) { |
| 6630 | if (f == aIgnoreFrame) { |
| 6631 | continue; |
| 6632 | } |
| 6633 | if (f == aFrame) { |
| 6634 | // If we have continuations, ignore them too. |
| 6635 | aFrame = aFrame->GetNextContinuation(); |
| 6636 | } else if (!IsWhitespaceFrame(f) && !IsSyntheticColGroup(f)) { |
| 6637 | // Synthetic colgroups get created unconditionally, so let's not consider |
| 6638 | // them as giving us a non-whitespace frame. |
| 6639 | return false; |
| 6640 | } |
| 6641 | } |
| 6642 | return true; |
| 6643 | } |
| 6644 | |
| 6645 | static bool AllChildListsAreEffectivelyEmpty(nsIFrame* aFrame) { |
| 6646 | for (auto& [list, listID] : aFrame->ChildLists()) { |
| 6647 | if (list.IsEmpty()) { |
| 6648 | continue; |
| 6649 | } |
| 6650 | // We have some existing frame, usually that would be considered as making |
| 6651 | // this list nonempty. But let's make an exception for the synthetic |
| 6652 | // colgroup that tables have, since that gets created unconditionally. |
| 6653 | if (listID == FrameChildListID::Principal && aFrame->IsTableFrame()) { |
| 6654 | if (nsIFrame* f = list.OnlyChild(); f && IsSyntheticColGroup(f)) { |
| 6655 | continue; |
| 6656 | } |
| 6657 | } |
| 6658 | return false; |
| 6659 | } |
| 6660 | return true; |
| 6661 | } |
| 6662 | |
| 6663 | static bool SafeToInsertPseudoNeedingChildren(nsIFrame* aFrame) { |
| 6664 | return AllChildListsAreEffectivelyEmpty(aFrame); |
| 6665 | } |
| 6666 | |
| 6667 | // Returns true if aFrame is the only meaningful child of aParent (which is |
| 6668 | // known to be a wrapper-pseudo). This lets us determine whether aParent can be |
| 6669 | // removed, as a result of aFrame being removed. |
| 6670 | static bool IsOnlyMeaningfulChildOfWrapperPseudo(nsIFrame* aFrame, |
| 6671 | nsIFrame* aParent) { |
| 6672 | MOZ_ASSERT(IsWrapperPseudo(aParent))do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsWrapperPseudo(aParent))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsWrapperPseudo(aParent)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("IsWrapperPseudo(aParent)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 6672); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "IsWrapperPseudo(aParent)" ")"); do { MOZ_CrashSequence (__null, 6672); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 6673 | // Handle a few special cases with tables and colgroups / captions. |
| 6674 | if (aParent->IsTableFrame()) { |
| 6675 | auto* wrapper = aParent->GetParent(); |
| 6676 | MOZ_ASSERT(wrapper)do { static_assert( mozilla::detail::AssertionConditionType< decltype(wrapper)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(wrapper))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("wrapper", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6676); AnnotateMozCrashReason("MOZ_ASSERT" "(" "wrapper" ")" ); do { MOZ_CrashSequence(__null, 6676); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6677 | MOZ_ASSERT(wrapper->IsTableWrapperFrame())do { static_assert( mozilla::detail::AssertionConditionType< decltype(wrapper->IsTableWrapperFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(wrapper->IsTableWrapperFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("wrapper->IsTableWrapperFrame()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6677); AnnotateMozCrashReason("MOZ_ASSERT" "(" "wrapper->IsTableWrapperFrame()" ")"); do { MOZ_CrashSequence(__null, 6677); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6678 | MOZ_ASSERT(!aFrame->IsTableCaption(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aFrame->IsTableCaption())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aFrame->IsTableCaption() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aFrame->IsTableCaption()" " (" "Caption parent should be the wrapper" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 6679 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aFrame->IsTableCaption()" ") (" "Caption parent should be the wrapper" ")"); do { MOZ_CrashSequence (__null, 6679); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 6679 | "Caption parent should be the wrapper")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aFrame->IsTableCaption())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aFrame->IsTableCaption() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aFrame->IsTableCaption()" " (" "Caption parent should be the wrapper" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 6679 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aFrame->IsTableCaption()" ") (" "Caption parent should be the wrapper" ")"); do { MOZ_CrashSequence (__null, 6679); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 6680 | // We can't remove the table if there are any captions present (captions are |
| 6681 | // never anonymous themselves), because table wrapper always relies on |
| 6682 | // having a table frame. |
| 6683 | if (!wrapper->PrincipalChildList().OnlyChild()) { |
| 6684 | return false; |
| 6685 | } |
| 6686 | } |
| 6687 | if (aFrame->IsTableCaption()) { |
| 6688 | MOZ_ASSERT(aParent->IsTableWrapperFrame())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParent->IsTableWrapperFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParent->IsTableWrapperFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aParent->IsTableWrapperFrame()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6688); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParent->IsTableWrapperFrame()" ")"); do { MOZ_CrashSequence(__null, 6688); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6689 | auto* table = static_cast<nsTableWrapperFrame*>(aParent)->InnerTableFrame(); |
| 6690 | MOZ_ASSERT(table)do { static_assert( mozilla::detail::AssertionConditionType< decltype(table)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(table))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("table", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6690); AnnotateMozCrashReason("MOZ_ASSERT" "(" "table" ")") ; do { MOZ_CrashSequence(__null, 6690); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6691 | return IsOnlyNonWhitespaceFrameInList(aParent->PrincipalChildList(), aFrame, |
| 6692 | /* aIgnoreFrame = */ table) && |
| 6693 | // This checks for both colgroups and the principal list of the table |
| 6694 | // frame. |
| 6695 | AllChildListsAreEffectivelyEmpty(table); |
| 6696 | } |
| 6697 | return IsOnlyNonWhitespaceFrameInList(aParent->PrincipalChildList(), aFrame); |
| 6698 | } |
| 6699 | |
| 6700 | static bool CanRemoveWrapperPseudoForChildRemoval(nsIFrame* aFrame, |
| 6701 | nsIFrame* aParent) { |
| 6702 | if (!IsOnlyMeaningfulChildOfWrapperPseudo(aFrame, aParent)) { |
| 6703 | return false; |
| 6704 | } |
| 6705 | if (aParent->GetPrevContinuation() || aParent->GetNextContinuation()) { |
| 6706 | // If our parent is fragmented we're not really the only meaningful child. |
| 6707 | return false; |
| 6708 | } |
| 6709 | if (aParent->IsRubyBaseContainerFrame()) { |
| 6710 | // We can't remove the first ruby base container of a ruby frame unless |
| 6711 | // it has no siblings. See CreateNeededPseudoSiblings. |
| 6712 | return aParent->GetPrevSibling() || !aParent->GetNextSibling(); |
| 6713 | } |
| 6714 | return true; |
| 6715 | } |
| 6716 | |
| 6717 | bool nsCSSFrameConstructor::ContentWillBeRemoved(nsIContent* aChild, |
| 6718 | RemovalKind aKind) { |
| 6719 | MOZ_ASSERT(aChild)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChild)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aChild", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6719); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChild" ")" ); do { MOZ_CrashSequence(__null, 6719); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6720 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aChild->IsRootOfNativeAnonymousSubtree() || !aChild ->GetNextSibling())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aChild->IsRootOfNativeAnonymousSubtree () || !aChild->GetNextSibling()))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("!aChild->IsRootOfNativeAnonymousSubtree() || !aChild->GetNextSibling()" " (" "Anonymous roots don't have siblings" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6722); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aChild->IsRootOfNativeAnonymousSubtree() || !aChild->GetNextSibling()" ") (" "Anonymous roots don't have siblings" ")"); do { MOZ_CrashSequence (__null, 6722); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 6721 | !aChild->IsRootOfNativeAnonymousSubtree() || !aChild->GetNextSibling(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aChild->IsRootOfNativeAnonymousSubtree() || !aChild ->GetNextSibling())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aChild->IsRootOfNativeAnonymousSubtree () || !aChild->GetNextSibling()))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("!aChild->IsRootOfNativeAnonymousSubtree() || !aChild->GetNextSibling()" " (" "Anonymous roots don't have siblings" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6722); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aChild->IsRootOfNativeAnonymousSubtree() || !aChild->GetNextSibling()" ") (" "Anonymous roots don't have siblings" ")"); do { MOZ_CrashSequence (__null, 6722); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 6722 | "Anonymous roots don't have siblings")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aChild->IsRootOfNativeAnonymousSubtree() || !aChild ->GetNextSibling())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aChild->IsRootOfNativeAnonymousSubtree () || !aChild->GetNextSibling()))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("!aChild->IsRootOfNativeAnonymousSubtree() || !aChild->GetNextSibling()" " (" "Anonymous roots don't have siblings" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6722); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aChild->IsRootOfNativeAnonymousSubtree() || !aChild->GetNextSibling()" ") (" "Anonymous roots don't have siblings" ")"); do { MOZ_CrashSequence (__null, 6722); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 6723 | AUTO_PROFILER_LABEL_HOT("nsCSSFrameConstructor::ContentWillBeRemoved",mozilla::AutoProfilerLabelHot raiiObject6724( "nsCSSFrameConstructor::ContentWillBeRemoved" , nullptr, JS::ProfilingCategoryPair::LAYOUT_FrameConstruction ) |
| 6724 | LAYOUT_FrameConstruction)mozilla::AutoProfilerLabelHot raiiObject6724( "nsCSSFrameConstructor::ContentWillBeRemoved" , nullptr, JS::ProfilingCategoryPair::LAYOUT_FrameConstruction ); |
| 6725 | AUTO_LAYOUT_PHASE_ENTRY_POINT(mPresShell->GetPresContext(), FrameC)nsAutoLayoutPhase autoLayoutPhase((mPresShell->GetPresContext ()), (nsLayoutPhase::FrameC)); |
| 6726 | nsPresContext* presContext = mPresShell->GetPresContext(); |
| 6727 | MOZ_ASSERT(presContext, "Our presShell should have a valid presContext")do { static_assert( mozilla::detail::AssertionConditionType< decltype(presContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(presContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("presContext" " (" "Our presShell should have a valid presContext" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6727); AnnotateMozCrashReason("MOZ_ASSERT" "(" "presContext" ") (" "Our presShell should have a valid presContext" ")"); do { MOZ_CrashSequence(__null, 6727); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 6728 | |
| 6729 | const bool wasRemovingContent = mRemovingContent; |
| 6730 | auto _ = MakeScopeExit([&] { mRemovingContent = wasRemovingContent; }); |
| 6731 | mRemovingContent = true; |
| 6732 | |
| 6733 | // We want to detect when the viewport override element stored in the |
| 6734 | // prescontext is in the subtree being removed. Except in fullscreen cases |
| 6735 | // (which are handled in Element::UnbindFromTree and do not get stored on the |
| 6736 | // prescontext), the override element is always either the root element or a |
| 6737 | // <body> child of the root element. So we can only be removing the stored |
| 6738 | // override element if the thing being removed is either the override element |
| 6739 | // itself or the root element (which can be a parent of the override element). |
| 6740 | // |
| 6741 | // The !wasRemovingContent check makes sure that we don't re-enter here from |
| 6742 | // other ContentWillBeRemoved calls, as that'd be useless work, and we don't |
| 6743 | // want to incorrectly pick aChild again as our viewport scroll style element |
| 6744 | // if it's getting removed from the DOM. |
| 6745 | if ((aChild == presContext->GetViewportScrollStylesOverrideElement() || |
| 6746 | aChild->IsRootElement()) && |
| 6747 | !wasRemovingContent) { |
| 6748 | // We might be removing the element that we propagated viewport scrollbar |
| 6749 | // styles from. Recompute those. (This clause covers two of the three |
| 6750 | // possible scrollbar-propagation sources: the <body> [as aChild or a |
| 6751 | // descendant] and the root node. The other possible scrollbar-propagation |
| 6752 | // source is a fullscreen element, and we have code elsewhere to update |
| 6753 | // scrollbars after fullscreen elements are removed -- specifically, it's |
| 6754 | // part of the fullscreen cleanup code called by Element::UnbindFromTree. |
| 6755 | // We don't handle the fullscreen case here, because it doesn't change the |
| 6756 | // scrollbar styles override element stored on the prescontext.) |
| 6757 | const Element* removingElement = |
| 6758 | aKind == RemovalKind::Dom ? aChild->AsElement() : nullptr; |
| 6759 | Element* newOverrideElement = |
| 6760 | presContext->UpdateViewportScrollStylesOverride(removingElement); |
| 6761 | |
| 6762 | // If aChild is the root, then we don't need to do any reframing of |
| 6763 | // newOverrideElement, because we're about to tear down the whole frame tree |
| 6764 | // anyway. And we need to make sure we don't do any such reframing, because |
| 6765 | // reframing the <body> can trigger a reframe of the <html> and then reenter |
| 6766 | // here. |
| 6767 | // |
| 6768 | // But if aChild is not the root, and if newOverrideElement is not the root |
| 6769 | // and isn't aChild (which it could be if all we're doing here is reframing |
| 6770 | // the current override element), it needs reframing. In particular, it |
| 6771 | // used to have a scrollframe (because its overflow was not "visible"), but |
| 6772 | // now it will propagate its overflow to the viewport, so it should not need |
| 6773 | // a scrollframe anymore. |
| 6774 | if (aChild->GetParent() && newOverrideElement && |
| 6775 | newOverrideElement->GetParent() && newOverrideElement != aChild) { |
| 6776 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 6777 | RecreateFramesForContent(newOverrideElement, InsertionKind::Async); |
| 6778 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6779 | } |
| 6780 | } |
| 6781 | |
| 6782 | #ifdef DEBUG1 |
| 6783 | if (gNoisyContentUpdates) { |
| 6784 | printf( |
| 6785 | "nsCSSFrameConstructor::ContentWillBeRemoved container=%p child=%p\n", |
| 6786 | aChild->GetParent(), aChild); |
| 6787 | if (gReallyNoisyContentUpdates) { |
| 6788 | aChild->GetParent()->List(stdoutstdout, 0); |
| 6789 | } |
| 6790 | } |
| 6791 | #endif |
| 6792 | |
| 6793 | nsIFrame* childFrame = aChild->GetPrimaryFrame(); |
| 6794 | if (!childFrame || childFrame->GetContent() != aChild) { |
| 6795 | // XXXbz the GetContent() != aChild check is needed due to bug 135040. |
| 6796 | // Remove it once that's fixed. |
| 6797 | childFrame = nullptr; |
| 6798 | } |
| 6799 | |
| 6800 | // If we're removing the root, then make sure to remove things starting at |
| 6801 | // the viewport's child instead of the primary frame (which might even be |
| 6802 | // null if the root was display:none, even though the frames above it got |
| 6803 | // created). Detecting removal of a root is a little exciting; in particular, |
| 6804 | // having no parent is necessary but NOT sufficient. |
| 6805 | // |
| 6806 | // Due to how we process reframes, the content node might not even be in our |
| 6807 | // document by now. So explicitly check whether the viewport's first kid's |
| 6808 | // content node is aChild. |
| 6809 | // |
| 6810 | // FIXME(emilio): I think the "might not be in our document" bit is impossible |
| 6811 | // now. |
| 6812 | bool isRoot = false; |
| 6813 | if (!aChild->GetParent()) { |
| 6814 | if (nsIFrame* viewport = GetRootFrame()) { |
| 6815 | nsIFrame* firstChild = viewport->PrincipalChildList().FirstChild(); |
| 6816 | if (firstChild && firstChild->GetContent() == aChild) { |
| 6817 | isRoot = true; |
| 6818 | childFrame = firstChild; |
| 6819 | NS_ASSERTION(!childFrame->GetNextSibling(), "How did that happen?")do { if (!(!childFrame->GetNextSibling())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "How did that happen?", "!childFrame->GetNextSibling()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 6819); MOZ_PretendNoReturn (); } } while (0); |
| 6820 | } |
| 6821 | } |
| 6822 | } |
| 6823 | |
| 6824 | // We need to be conservative about when to determine whether something has |
| 6825 | // display: contents or not because at this point our actual display may be |
| 6826 | // different. |
| 6827 | // |
| 6828 | // Consider the case of: |
| 6829 | // |
| 6830 | // <div id="A" style="display: contents"><div id="B"></div></div> |
| 6831 | // |
| 6832 | // If we reconstruct A because its display changed to "none", we still need to |
| 6833 | // cleanup the frame on B, but A's display is now "none", so we can't poke at |
| 6834 | // the style of it. |
| 6835 | // |
| 6836 | // FIXME(emilio, bug 1450366): We can make this faster without adding much |
| 6837 | // complexity for the display: none -> other case, which right now |
| 6838 | // unnecessarily walks the content tree down. |
| 6839 | auto CouldHaveBeenDisplayContents = [aKind](nsIContent* aContent) -> bool { |
| 6840 | return aContent->IsElement() && (aKind != RemovalKind::Dom || |
| 6841 | IsDisplayContents(aContent->AsElement())); |
| 6842 | }; |
| 6843 | |
| 6844 | if (!childFrame) { |
| 6845 | if (CouldHaveBeenDisplayContents(aChild)) { |
| 6846 | // NOTE(emilio): We may iterate through ::before and ::after here and they |
| 6847 | // may be gone after the respective ContentWillBeRemoved call. Right now |
| 6848 | // StyleChildrenIterator handles that properly, so it's not an issue. |
| 6849 | StyleChildrenIterator iter(aChild); |
| 6850 | for (nsIContent* c = iter.GetNextChild(); c; c = iter.GetNextChild()) { |
| 6851 | if (c->GetPrimaryFrame() || CouldHaveBeenDisplayContents(c)) { |
| 6852 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 6853 | bool didReconstruct = ContentWillBeRemoved(c, aKind); |
| 6854 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6855 | if (didReconstruct) { |
| 6856 | return true; |
| 6857 | } |
| 6858 | } |
| 6859 | } |
| 6860 | } |
| 6861 | return false; |
| 6862 | } |
| 6863 | |
| 6864 | InvalidateCanvasIfNeeded(mPresShell, aChild); |
| 6865 | |
| 6866 | // See whether we need to remove more than just childFrame |
| 6867 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 6868 | if (MaybeRecreateContainerForFrameRemoval(childFrame)) { |
| 6869 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6870 | return true; |
| 6871 | } |
| 6872 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6873 | |
| 6874 | // Get the childFrame's parent frame |
| 6875 | nsIFrame* parentFrame = childFrame->GetParent(); |
| 6876 | LayoutFrameType parentType = parentFrame->Type(); |
| 6877 | |
| 6878 | if (parentType == LayoutFrameType::FrameSet && |
| 6879 | IsSpecialFramesetChild(aChild)) { |
| 6880 | // Just reframe the parent, since framesets are weird like that. |
| 6881 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 6882 | RecreateFramesForContent(parentFrame->GetContent(), InsertionKind::Async); |
| 6883 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6884 | return true; |
| 6885 | } |
| 6886 | |
| 6887 | // If we're a child of MathML, then we should reframe the MathML content. |
| 6888 | // If we're non-MathML, then we would be wrapped in a block so we need to |
| 6889 | // check our grandparent in that case. |
| 6890 | nsIFrame* possibleMathMLAncestor = parentType == LayoutFrameType::Block |
| 6891 | ? parentFrame->GetParent() |
| 6892 | : parentFrame; |
| 6893 | if (possibleMathMLAncestor->IsMathMLFrame()) { |
| 6894 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 6895 | RecreateFramesForContent(parentFrame->GetContent(), InsertionKind::Async); |
| 6896 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 6897 | return true; |
| 6898 | } |
| 6899 | |
| 6900 | #ifdef ACCESSIBILITY1 |
| 6901 | if (aKind != RemovalKind::ForReconstruction) { |
| 6902 | if (nsAccessibilityService* accService = GetAccService()) { |
| 6903 | accService->ContentRemoved(mPresShell, aChild); |
| 6904 | } |
| 6905 | } |
| 6906 | #endif |
| 6907 | |
| 6908 | // Examine the containing-block for the removed content and see if |
| 6909 | // :first-letter style applies. |
| 6910 | nsIFrame* inflowChild = childFrame; |
| 6911 | if (childFrame->HasAnyStateBits(NS_FRAME_OUT_OF_FLOW)) { |
| 6912 | inflowChild = childFrame->GetPlaceholderFrame(); |
| 6913 | NS_ASSERTION(inflowChild, "No placeholder for out-of-flow?")do { if (!(inflowChild)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "No placeholder for out-of-flow?" , "inflowChild", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6913); MOZ_PretendNoReturn(); } } while (0); |
| 6914 | } |
| 6915 | nsContainerFrame* containingBlock = |
| 6916 | GetFloatContainingBlock(inflowChild->GetParent()); |
| 6917 | bool haveFLS = containingBlock && HasFirstLetterStyle(containingBlock); |
| 6918 | if (haveFLS) { |
| 6919 | // Trap out to special routine that handles adjusting a blocks |
| 6920 | // frame tree when first-letter style is present. |
| 6921 | #ifdef NOISY_FIRST_LETTER |
| 6922 | printf("ContentWillBeRemoved: containingBlock="); |
| 6923 | containingBlock->ListTag(stdoutstdout); |
| 6924 | printf(" parentFrame="); |
| 6925 | parentFrame->ListTag(stdoutstdout); |
| 6926 | printf(" childFrame="); |
| 6927 | childFrame->ListTag(stdoutstdout); |
| 6928 | printf("\n"); |
| 6929 | #endif |
| 6930 | |
| 6931 | // First update the containing blocks structure by removing the |
| 6932 | // existing letter frames. This makes the subsequent logic |
| 6933 | // simpler. |
| 6934 | RemoveLetterFrames(mPresShell, containingBlock); |
| 6935 | |
| 6936 | // Recover childFrame and parentFrame |
| 6937 | childFrame = aChild->GetPrimaryFrame(); |
| 6938 | if (!childFrame || childFrame->GetContent() != aChild) { |
| 6939 | // XXXbz the GetContent() != aChild check is needed due to bug 135040. |
| 6940 | // Remove it once that's fixed. |
| 6941 | return false; |
| 6942 | } |
| 6943 | parentFrame = childFrame->GetParent(); |
| 6944 | parentType = parentFrame->Type(); |
Value stored to 'parentType' is never read | |
| 6945 | |
| 6946 | #ifdef NOISY_FIRST_LETTER |
| 6947 | printf(" ==> revised parentFrame="); |
| 6948 | parentFrame->ListTag(stdoutstdout); |
| 6949 | printf(" childFrame="); |
| 6950 | childFrame->ListTag(stdoutstdout); |
| 6951 | printf("\n"); |
| 6952 | #endif |
| 6953 | } |
| 6954 | |
| 6955 | #ifdef DEBUG1 |
| 6956 | if (gReallyNoisyContentUpdates) { |
| 6957 | printf("nsCSSFrameConstructor::ContentWillBeRemoved: childFrame="); |
| 6958 | childFrame->ListTag(stdoutstdout); |
| 6959 | putchar('\n'); |
| 6960 | parentFrame->List(stdoutstdout); |
| 6961 | } |
| 6962 | #endif |
| 6963 | |
| 6964 | // Notify the parent frame that it should delete the frame |
| 6965 | if (childFrame->HasAnyStateBits(NS_FRAME_OUT_OF_FLOW)) { |
| 6966 | childFrame = childFrame->GetPlaceholderFrame(); |
| 6967 | NS_ASSERTION(childFrame, "Missing placeholder frame for out of flow.")do { if (!(childFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Missing placeholder frame for out of flow." , "childFrame", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 6967); MOZ_PretendNoReturn(); } } while (0); |
| 6968 | parentFrame = childFrame->GetParent(); |
| 6969 | } |
| 6970 | |
| 6971 | // Take care of wrapper anonymous boxes that we might need to remove while |
| 6972 | // at it. Note that MaybeRecreateContainerForFrameRemoval takes care of |
| 6973 | // harder cases (merging sibling anonymous boxes etc). |
| 6974 | while (IsWrapperPseudo(parentFrame) && |
| 6975 | CanRemoveWrapperPseudoForChildRemoval(childFrame, parentFrame)) { |
| 6976 | childFrame = parentFrame; |
| 6977 | parentFrame = childFrame->GetParent(); |
| 6978 | } |
| 6979 | |
| 6980 | const bool canSkipWhitespaceFixup = [&] { |
| 6981 | if (aKind == RemovalKind::ForReconstruction) { |
| 6982 | // If we're just reconstructing frames for the element, then the |
| 6983 | // following ContentInserted notification on the element will |
| 6984 | // take care of fixing up any adjacent white-space text nodes. |
| 6985 | return true; |
| 6986 | } |
| 6987 | switch (parentFrame->Type()) { |
| 6988 | case LayoutFrameType::Table: |
| 6989 | case LayoutFrameType::TableRow: |
| 6990 | case LayoutFrameType::TableRowGroup: |
| 6991 | case LayoutFrameType::TableCol: |
| 6992 | case LayoutFrameType::TableColGroup: |
| 6993 | case LayoutFrameType::TableWrapper: { |
| 6994 | // Tables ignore all whitespace within their wrappers, so we can avoid |
| 6995 | // reconstructing adjacent whitespace if the table is not anonymous. |
| 6996 | if (!IsInAnonymousTable(parentFrame)) { |
| 6997 | return true; |
| 6998 | } |
| 6999 | // If the table is anonymous and the child is at the edges, we might |
| 7000 | // need to create whitespace at the edges of the table that wasn't |
| 7001 | // there before, so we can only skip the check if childFrame has frames |
| 7002 | // around. Captions are extra-special here, because they're siblings |
| 7003 | // with the main table frame, so we can't count that as a relevant |
| 7004 | // sibling for our purposes. |
| 7005 | auto* prevSibling = childFrame->GetPrevSibling(); |
| 7006 | return prevSibling && !prevSibling->IsTableFrame() && |
| 7007 | childFrame->GetNextSibling(); |
| 7008 | } |
| 7009 | case LayoutFrameType::GridContainer: |
| 7010 | case LayoutFrameType::FlexContainer: |
| 7011 | // Flex and grid containers similarly skip whitespace and wrap |
| 7012 | // non-whitespace in anonymous flex items, so any change to |
| 7013 | // white-space that could matter would have triggered the |
| 7014 | // reconstruction of the container itself due to merging anonymous |
| 7015 | // grid / flex items. |
| 7016 | return true; |
| 7017 | default: |
| 7018 | break; |
| 7019 | } |
| 7020 | return false; |
| 7021 | }(); |
| 7022 | DestroyContext context(mPresShell); |
| 7023 | RemoveFrame(context, nsLayoutUtils::GetChildListNameFor(childFrame), |
| 7024 | childFrame); |
| 7025 | |
| 7026 | // NOTE(emilio): aChild could be dead here already if it is a ::before or |
| 7027 | // ::after pseudo-element (since in that case it was owned by childFrame, |
| 7028 | // which we just destroyed). |
| 7029 | |
| 7030 | if (isRoot) { |
| 7031 | mRootElementFrame = nullptr; |
| 7032 | mRootElementStyleFrame = nullptr; |
| 7033 | mDocElementContainingBlock = nullptr; |
| 7034 | mCanvasFrame = nullptr; |
| 7035 | mPageSequenceFrame = nullptr; |
| 7036 | } |
| 7037 | |
| 7038 | if (haveFLS && mRootElementFrame) { |
| 7039 | RecoverLetterFrames(containingBlock); |
| 7040 | } |
| 7041 | |
| 7042 | if (!canSkipWhitespaceFixup) { |
| 7043 | MOZ_ASSERT(aChild->GetParentNode(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChild->GetParentNode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aChild->GetParentNode())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aChild->GetParentNode()" " (" "How did we have a sibling without a parent?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7044); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChild->GetParentNode()" ") (" "How did we have a sibling without a parent?" ")"); do { MOZ_CrashSequence(__null, 7044); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 7044 | "How did we have a sibling without a parent?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChild->GetParentNode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aChild->GetParentNode())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aChild->GetParentNode()" " (" "How did we have a sibling without a parent?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7044); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChild->GetParentNode()" ") (" "How did we have a sibling without a parent?" ")"); do { MOZ_CrashSequence(__null, 7044); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 7045 | // Adjacent whitespace-only text nodes might have been suppressed if |
| 7046 | // this node does not have inline ends. Create frames for them now |
| 7047 | // if necessary. |
| 7048 | // Reframe any text node just before the node being removed, if there is |
| 7049 | // one, and if it's not the last child or the first child. If a whitespace |
| 7050 | // textframe was being suppressed and it's now the last child or first |
| 7051 | // child then it can stay suppressed since the parent must be a block |
| 7052 | // and hence it's adjacent to a block end. |
| 7053 | // If aOldNextSibling is null, then the text node before the node being |
| 7054 | // removed is the last node, and we don't need to worry about it. |
| 7055 | nsIContent* prevSibling = aChild->GetPreviousSibling(); |
| 7056 | if (prevSibling && prevSibling->GetPreviousSibling()) { |
| 7057 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 7058 | ReframeTextIfNeeded(prevSibling); |
| 7059 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 7060 | } |
| 7061 | // Reframe any text node just after the node being removed, if there is |
| 7062 | // one, and if it's not the last child or the first child. |
| 7063 | nsIContent* nextSibling = aChild->GetNextSibling(); |
| 7064 | if (nextSibling && prevSibling && nextSibling->GetNextSibling()) { |
| 7065 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 7066 | ReframeTextIfNeeded(nextSibling); |
| 7067 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 7068 | } |
| 7069 | } |
| 7070 | |
| 7071 | #ifdef DEBUG1 |
| 7072 | if (gReallyNoisyContentUpdates && parentFrame) { |
| 7073 | printf( |
| 7074 | "nsCSSFrameConstructor::ContentWillBeRemoved: resulting frame " |
| 7075 | "model:\n"); |
| 7076 | parentFrame->List(stdoutstdout); |
| 7077 | } |
| 7078 | #endif |
| 7079 | |
| 7080 | return false; |
| 7081 | } |
| 7082 | |
| 7083 | /** |
| 7084 | * This method invalidates the canvas when frames are removed or added for a |
| 7085 | * node that might have its background propagated to the canvas, i.e., a |
| 7086 | * document root node or an HTML BODY which is a child of the root node. |
| 7087 | * |
| 7088 | * @param aFrame a frame for a content node about to be removed or a frame that |
| 7089 | * was just created for a content node that was inserted. |
| 7090 | */ |
| 7091 | static void InvalidateCanvasIfNeeded(PresShell* aPresShell, nsIContent* aNode) { |
| 7092 | MOZ_ASSERT(aPresShell->GetRootFrame(), "What happened here?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPresShell->GetRootFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aPresShell->GetRootFrame( )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aPresShell->GetRootFrame()" " (" "What happened here?" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 7092); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aPresShell->GetRootFrame()" ") (" "What happened here?" ")"); do { MOZ_CrashSequence(__null, 7092); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7093 | MOZ_ASSERT(aPresShell->GetPresContext(), "Say what?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPresShell->GetPresContext())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aPresShell->GetPresContext ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aPresShell->GetPresContext()" " (" "Say what?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7093); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPresShell->GetPresContext()" ") (" "Say what?" ")"); do { MOZ_CrashSequence(__null, 7093) ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 7094 | |
| 7095 | // Note that both in ContentWillBeRemoved and ContentInserted the content |
| 7096 | // node will still have the right parent pointer, so looking at that is ok. |
| 7097 | |
| 7098 | nsIContent* parent = aNode->GetParent(); |
| 7099 | if (parent) { |
| 7100 | // Has a parent; might not be what we want |
| 7101 | nsIContent* grandParent = parent->GetParent(); |
| 7102 | if (grandParent) { |
| 7103 | // Has a grandparent, so not what we want |
| 7104 | return; |
| 7105 | } |
| 7106 | |
| 7107 | // Check whether it's an HTML body |
| 7108 | if (!aNode->IsHTMLElement(nsGkAtoms::body)) { |
| 7109 | return; |
| 7110 | } |
| 7111 | } |
| 7112 | |
| 7113 | // At this point the node has no parent or it's an HTML <body> child of the |
| 7114 | // root. We might not need to invalidate in this case (eg we might be in |
| 7115 | // XHTML or something), but chances are we want to. Play it safe. |
| 7116 | // Invalidate the viewport. |
| 7117 | |
| 7118 | nsIFrame* rootFrame = aPresShell->GetRootFrame(); |
| 7119 | rootFrame->InvalidateFrameSubtree(); |
| 7120 | } |
| 7121 | |
| 7122 | bool nsCSSFrameConstructor::EnsureFrameForTextNodeIsCreatedAfterFlush( |
| 7123 | CharacterData* aContent) { |
| 7124 | if (!aContent->HasFlag(NS_CREATE_FRAME_IF_NON_WHITESPACE)) { |
| 7125 | return false; |
| 7126 | } |
| 7127 | |
| 7128 | if (mAlwaysCreateFramesForIgnorableWhitespace) { |
| 7129 | return false; |
| 7130 | } |
| 7131 | |
| 7132 | // Text frame may have been suppressed. Disable suppression and signal that a |
| 7133 | // flush should be performed. We do this on a document-wide basis so that |
| 7134 | // pages that repeatedly query metrics for collapsed-whitespace text nodes |
| 7135 | // don't trigger pathological behavior. |
| 7136 | mAlwaysCreateFramesForIgnorableWhitespace = true; |
| 7137 | Element* root = mDocument->GetRootElement(); |
| 7138 | if (!root) { |
| 7139 | return false; |
| 7140 | } |
| 7141 | |
| 7142 | RestyleManager()->PostRestyleEvent(root, RestyleHint{0}, |
| 7143 | nsChangeHint_ReconstructFrame); |
| 7144 | return true; |
| 7145 | } |
| 7146 | |
| 7147 | void nsCSSFrameConstructor::CharacterDataChanged( |
| 7148 | nsIContent* aContent, const CharacterDataChangeInfo& aInfo) { |
| 7149 | AUTO_PROFILER_LABEL_HOT("nsCSSFrameConstructor::CharacterDataChanged",mozilla::AutoProfilerLabelHot raiiObject7150( "nsCSSFrameConstructor::CharacterDataChanged" , nullptr, JS::ProfilingCategoryPair::LAYOUT_FrameConstruction ) |
| 7150 | LAYOUT_FrameConstruction)mozilla::AutoProfilerLabelHot raiiObject7150( "nsCSSFrameConstructor::CharacterDataChanged" , nullptr, JS::ProfilingCategoryPair::LAYOUT_FrameConstruction ); |
| 7151 | AUTO_LAYOUT_PHASE_ENTRY_POINT(mPresShell->GetPresContext(), FrameC)nsAutoLayoutPhase autoLayoutPhase((mPresShell->GetPresContext ()), (nsLayoutPhase::FrameC)); |
| 7152 | |
| 7153 | if ((aContent->HasFlag(NS_CREATE_FRAME_IF_NON_WHITESPACE) && |
| 7154 | !aContent->TextIsOnlyWhitespace()) || |
| 7155 | (aContent->HasFlag(NS_REFRAME_IF_WHITESPACE) && |
| 7156 | aContent->TextIsOnlyWhitespace())) { |
| 7157 | #ifdef DEBUG1 |
| 7158 | nsIFrame* frame = aContent->GetPrimaryFrame(); |
| 7159 | NS_ASSERTION(!frame || !frame->IsGeneratedContentFrame(),do { if (!(!frame || !frame->IsGeneratedContentFrame())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Bit should never be set on generated content" , "!frame || !frame->IsGeneratedContentFrame()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7160); MOZ_PretendNoReturn(); } } while (0) |
| 7160 | "Bit should never be set on generated content")do { if (!(!frame || !frame->IsGeneratedContentFrame())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Bit should never be set on generated content" , "!frame || !frame->IsGeneratedContentFrame()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7160); MOZ_PretendNoReturn(); } } while (0); |
| 7161 | #endif |
| 7162 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 7163 | RecreateFramesForContent(aContent, InsertionKind::Async); |
| 7164 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 7165 | return; |
| 7166 | } |
| 7167 | |
| 7168 | // It's possible the frame whose content changed isn't inserted into the |
| 7169 | // frame hierarchy yet, or that there is no frame that maps the content |
| 7170 | if (nsIFrame* frame = aContent->GetPrimaryFrame()) { |
| 7171 | #if 0 |
| 7172 | NS_FRAME_LOG(NS_FRAME_TRACE_CALLS,do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { printf_stderr ("nsCSSFrameConstructor::CharacterDataChanged: content=%p[%s] subcontent=%p frame=%p" , aContent, ContentTag(aContent, 0), aSubContent, frame); } } while (0) |
| 7173 | ("nsCSSFrameConstructor::CharacterDataChanged: content=%p[%s] subcontent=%p frame=%p",do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { printf_stderr ("nsCSSFrameConstructor::CharacterDataChanged: content=%p[%s] subcontent=%p frame=%p" , aContent, ContentTag(aContent, 0), aSubContent, frame); } } while (0) |
| 7174 | aContent, ContentTag(aContent, 0),do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { printf_stderr ("nsCSSFrameConstructor::CharacterDataChanged: content=%p[%s] subcontent=%p frame=%p" , aContent, ContentTag(aContent, 0), aSubContent, frame); } } while (0) |
| 7175 | aSubContent, frame))do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { printf_stderr ("nsCSSFrameConstructor::CharacterDataChanged: content=%p[%s] subcontent=%p frame=%p" , aContent, ContentTag(aContent, 0), aSubContent, frame); } } while (0); |
| 7176 | #endif |
| 7177 | |
| 7178 | if (frame->HasAnyStateBits(NS_FRAME_IS_IN_SINGLE_CHAR_MI)) { |
| 7179 | LAYOUT_PHASE_TEMP_EXIT()do { autoLayoutPhase.Exit(); } while (0); |
| 7180 | RecreateFramesForContent(aContent, InsertionKind::Async); |
| 7181 | LAYOUT_PHASE_TEMP_REENTER()do { autoLayoutPhase.Enter(); } while (0); |
| 7182 | return; |
| 7183 | } |
| 7184 | |
| 7185 | // Special check for text content that is a child of a letter frame. If |
| 7186 | // this happens, we should remove the letter frame, do whatever we're |
| 7187 | // planning to do with this notification, then put the letter frame back. |
| 7188 | // Note that this is basically what RecreateFramesForContent ends up doing; |
| 7189 | // the reason we dont' want to call that here is that our text content |
| 7190 | // could be native anonymous, in which case RecreateFramesForContent would |
| 7191 | // completely barf on it. And recreating the non-anonymous ancestor would |
| 7192 | // just lead us to come back into this notification (e.g. if quotes or |
| 7193 | // counters are involved), leading to a loop. |
| 7194 | nsContainerFrame* block = GetFloatContainingBlock(frame); |
| 7195 | bool haveFirstLetterStyle = false; |
| 7196 | if (block) { |
| 7197 | // See if the block has first-letter style applied to it. |
| 7198 | haveFirstLetterStyle = HasFirstLetterStyle(block); |
| 7199 | if (haveFirstLetterStyle) { |
| 7200 | RemoveLetterFrames(mPresShell, block); |
| 7201 | // Reget |frame|, since we might have killed it. |
| 7202 | // Do we really need to call CharacterDataChanged in this case, though? |
| 7203 | frame = aContent->GetPrimaryFrame(); |
| 7204 | NS_ASSERTION(frame, "Should have frame here!")do { if (!(frame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Should have frame here!" , "frame", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7204); MOZ_PretendNoReturn(); } } while (0); |
| 7205 | } |
| 7206 | } |
| 7207 | |
| 7208 | // Notify the first frame that maps the content. It will generate a reflow |
| 7209 | // command |
| 7210 | frame->CharacterDataChanged(aInfo); |
| 7211 | |
| 7212 | if (haveFirstLetterStyle) { |
| 7213 | RecoverLetterFrames(block); |
| 7214 | } |
| 7215 | } |
| 7216 | } |
| 7217 | |
| 7218 | void nsCSSFrameConstructor::RecalcQuotesAndCounters() { |
| 7219 | nsAutoScriptBlocker scriptBlocker; |
| 7220 | |
| 7221 | if (mQuotesDirty) { |
| 7222 | mQuotesDirty = false; |
| 7223 | mContainStyleScopeManager.RecalcAllQuotes(); |
| 7224 | } |
| 7225 | |
| 7226 | if (mCountersDirty) { |
| 7227 | mCountersDirty = false; |
| 7228 | mContainStyleScopeManager.RecalcAllCounters(); |
| 7229 | } |
| 7230 | |
| 7231 | NS_ASSERTION(!mQuotesDirty, "Quotes updates will be lost")do { if (!(!mQuotesDirty)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Quotes updates will be lost", "!mQuotesDirty", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7231); MOZ_PretendNoReturn(); } } while (0); |
| 7232 | NS_ASSERTION(!mCountersDirty, "Counter updates will be lost")do { if (!(!mCountersDirty)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Counter updates will be lost", "!mCountersDirty", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7232); MOZ_PretendNoReturn(); } } while (0); |
| 7233 | } |
| 7234 | |
| 7235 | void nsCSSFrameConstructor::NotifyCounterStylesAreDirty() { |
| 7236 | mContainStyleScopeManager.SetAllCountersDirty(); |
| 7237 | CountersDirty(); |
| 7238 | } |
| 7239 | |
| 7240 | void nsCSSFrameConstructor::WillDestroyFrameTree() { |
| 7241 | #if defined(DEBUG_dbaron_off) |
| 7242 | mContainStyleScopeManager.DumpCounters(); |
| 7243 | #endif |
| 7244 | |
| 7245 | // Prevent frame tree destruction from being O(N^2) |
| 7246 | mContainStyleScopeManager.Clear(); |
| 7247 | nsFrameManager::Destroy(); |
| 7248 | } |
| 7249 | |
| 7250 | // STATIC |
| 7251 | |
| 7252 | // XXXbz I'd really like this method to go away. Once we have inline-block and |
| 7253 | // I can just use that for sized broken images, that can happen, maybe. |
| 7254 | // |
| 7255 | // NOTE(emilio): This needs to match MozAltContent handling. |
| 7256 | void nsCSSFrameConstructor::GetAlternateTextFor(const Element& aElement, |
| 7257 | nsAString& aAltText) { |
| 7258 | // The "alt" attribute specifies alternate text that is rendered |
| 7259 | // when the image can not be displayed. |
| 7260 | if (aElement.GetAttr(nsGkAtoms::alt, aAltText)) { |
| 7261 | return; |
| 7262 | } |
| 7263 | |
| 7264 | if (aElement.IsHTMLElement(nsGkAtoms::input)) { |
| 7265 | // If there's no "alt" attribute, and aElement is an input element, then use |
| 7266 | // the value of the "value" attribute. |
| 7267 | if (aElement.GetAttr(nsGkAtoms::value, aAltText)) { |
| 7268 | return; |
| 7269 | } |
| 7270 | |
| 7271 | // If there's no "value" attribute either, then use the localized string for |
| 7272 | // "Submit" as the alternate text. |
| 7273 | nsContentUtils::GetMaybeLocalizedString(PropertiesFile::FORMS_PROPERTIES, |
| 7274 | "Submit", aElement.OwnerDoc(), |
| 7275 | aAltText); |
| 7276 | } |
| 7277 | } |
| 7278 | |
| 7279 | nsIFrame* nsCSSFrameConstructor::CreateContinuingOuterTableFrame( |
| 7280 | nsIFrame* aFrame, nsContainerFrame* aParentFrame, nsIContent* aContent, |
| 7281 | ComputedStyle* aComputedStyle) { |
| 7282 | nsTableWrapperFrame* newFrame = |
| 7283 | NS_NewTableWrapperFrame(mPresShell, aComputedStyle); |
| 7284 | |
| 7285 | newFrame->Init(aContent, aParentFrame, aFrame); |
| 7286 | |
| 7287 | // Create a continuing inner table frame. Note we don't replicate the |
| 7288 | // captions: a comment used to hint at that, but the code dealing with that |
| 7289 | // never worked and was removed in bug 309322. |
| 7290 | nsFrameList newChildFrames; |
| 7291 | |
| 7292 | MOZ_ASSERT(aFrame->IsTableWrapperFrame())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->IsTableWrapperFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aFrame->IsTableWrapperFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aFrame->IsTableWrapperFrame()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7292); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->IsTableWrapperFrame()" ")"); do { MOZ_CrashSequence(__null, 7292); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7293 | if (nsTableFrame* childFrame = |
| 7294 | static_cast<nsTableWrapperFrame*>(aFrame)->InnerTableFrame()) { |
| 7295 | nsIFrame* continuingTableFrame = |
| 7296 | CreateContinuingFrame(childFrame, newFrame); |
| 7297 | newChildFrames.AppendFrame(nullptr, continuingTableFrame); |
| 7298 | } |
| 7299 | |
| 7300 | // Set the table wrapper's initial child list |
| 7301 | newFrame->SetInitialChildList(FrameChildListID::Principal, |
| 7302 | std::move(newChildFrames)); |
| 7303 | |
| 7304 | return newFrame; |
| 7305 | } |
| 7306 | |
| 7307 | nsIFrame* nsCSSFrameConstructor::CreateContinuingTableFrame( |
| 7308 | nsIFrame* aFrame, nsContainerFrame* aParentFrame, nsIContent* aContent, |
| 7309 | ComputedStyle* aComputedStyle) { |
| 7310 | nsTableFrame* newFrame = NS_NewTableFrame(mPresShell, aComputedStyle); |
| 7311 | |
| 7312 | newFrame->Init(aContent, aParentFrame, aFrame); |
| 7313 | |
| 7314 | // Replicate any header/footer frames |
| 7315 | nsFrameList childFrames; |
| 7316 | for (nsIFrame* childFrame : aFrame->PrincipalChildList()) { |
| 7317 | // See if it's a header/footer, possibly wrapped in a scroll frame. |
| 7318 | nsTableRowGroupFrame* rowGroupFrame = |
| 7319 | static_cast<nsTableRowGroupFrame*>(childFrame); |
| 7320 | // If the row group was continued, then don't replicate it. |
| 7321 | nsIFrame* rgNextInFlow = rowGroupFrame->GetNextInFlow(); |
| 7322 | if (rgNextInFlow) { |
| 7323 | rowGroupFrame->SetRepeatable(false); |
| 7324 | } else if (rowGroupFrame->IsRepeatable()) { |
| 7325 | // Replicate the header/footer frame. |
| 7326 | nsTableRowGroupFrame* headerFooterFrame; |
| 7327 | nsFrameList childList; |
| 7328 | |
| 7329 | nsFrameConstructorState state( |
| 7330 | mPresShell, GetAbsoluteContainingBlock(newFrame, FIXED_POS), |
| 7331 | GetAbsoluteContainingBlock(newFrame, ABS_POS), nullptr); |
| 7332 | state.mCreatingExtraFrames = true; |
| 7333 | |
| 7334 | ComputedStyle* const headerFooterComputedStyle = rowGroupFrame->Style(); |
| 7335 | headerFooterFrame = static_cast<nsTableRowGroupFrame*>( |
| 7336 | NS_NewTableRowGroupFrame(mPresShell, headerFooterComputedStyle)); |
| 7337 | |
| 7338 | nsIContent* headerFooter = rowGroupFrame->GetContent(); |
| 7339 | headerFooterFrame->Init(headerFooter, newFrame, nullptr); |
| 7340 | if (rowGroupFrame->HasAnyStateBits(NS_FRAME_GENERATED_CONTENT)) { |
| 7341 | headerFooterFrame->AddStateBits(NS_FRAME_GENERATED_CONTENT); |
| 7342 | state.mAdditionalStateBits |= NS_FRAME_GENERATED_CONTENT; |
| 7343 | } |
| 7344 | |
| 7345 | nsFrameConstructorSaveState absoluteSaveState; |
| 7346 | MakeTablePartAbsoluteContainingBlock(state, absoluteSaveState, |
| 7347 | headerFooterFrame); |
| 7348 | |
| 7349 | nsFrameConstructorSaveState floatSaveState; |
| 7350 | state.MaybePushFloatContainingBlock(headerFooterFrame, floatSaveState); |
| 7351 | |
| 7352 | ProcessChildren(state, headerFooter, rowGroupFrame->Style(), |
| 7353 | headerFooterFrame, true, childList, false, nullptr); |
| 7354 | NS_ASSERTION(state.mFloatedList.IsEmpty(), "unexpected floated element")do { if (!(state.mFloatedList.IsEmpty())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "unexpected floated element", "state.mFloatedList.IsEmpty()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 7354); MOZ_PretendNoReturn (); } } while (0); |
| 7355 | headerFooterFrame->SetInitialChildList(FrameChildListID::Principal, |
| 7356 | std::move(childList)); |
| 7357 | headerFooterFrame->SetRepeatable(true); |
| 7358 | |
| 7359 | // Table specific initialization |
| 7360 | headerFooterFrame->InitRepeatedFrame(rowGroupFrame); |
| 7361 | |
| 7362 | // XXX Deal with absolute and fixed frames... |
| 7363 | childFrames.AppendFrame(nullptr, headerFooterFrame); |
| 7364 | } |
| 7365 | } |
| 7366 | |
| 7367 | // Set the table frame's initial child list |
| 7368 | newFrame->SetInitialChildList(FrameChildListID::Principal, |
| 7369 | std::move(childFrames)); |
| 7370 | |
| 7371 | return newFrame; |
| 7372 | } |
| 7373 | |
| 7374 | nsIFrame* nsCSSFrameConstructor::CreateContinuingFrame( |
| 7375 | nsIFrame* aFrame, nsContainerFrame* aParentFrame, bool aIsFluid) { |
| 7376 | ComputedStyle* computedStyle = aFrame->Style(); |
| 7377 | nsIFrame* newFrame = nullptr; |
| 7378 | nsIFrame* nextContinuation = aFrame->GetNextContinuation(); |
| 7379 | nsIFrame* nextInFlow = aFrame->GetNextInFlow(); |
| 7380 | |
| 7381 | // Use the frame type to determine what type of frame to create |
| 7382 | LayoutFrameType frameType = aFrame->Type(); |
| 7383 | nsIContent* content = aFrame->GetContent(); |
| 7384 | |
| 7385 | if (LayoutFrameType::Text == frameType) { |
| 7386 | newFrame = NS_NewContinuingTextFrame(mPresShell, computedStyle); |
| 7387 | newFrame->Init(content, aParentFrame, aFrame); |
| 7388 | } else if (LayoutFrameType::Inline == frameType) { |
| 7389 | newFrame = NS_NewInlineFrame(mPresShell, computedStyle); |
| 7390 | newFrame->Init(content, aParentFrame, aFrame); |
| 7391 | } else if (LayoutFrameType::Block == frameType) { |
| 7392 | MOZ_ASSERT(!aFrame->IsTableCaption(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aFrame->IsTableCaption())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aFrame->IsTableCaption() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aFrame->IsTableCaption()" " (" "no support for fragmenting table captions yet" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 7393 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aFrame->IsTableCaption()" ") (" "no support for fragmenting table captions yet" ")"); do { MOZ_CrashSequence(__null, 7393); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 7393 | "no support for fragmenting table captions yet")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aFrame->IsTableCaption())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aFrame->IsTableCaption() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aFrame->IsTableCaption()" " (" "no support for fragmenting table captions yet" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 7393 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aFrame->IsTableCaption()" ") (" "no support for fragmenting table captions yet" ")"); do { MOZ_CrashSequence(__null, 7393); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 7394 | newFrame = NS_NewBlockFrame(mPresShell, computedStyle); |
| 7395 | newFrame->Init(content, aParentFrame, aFrame); |
| 7396 | } else if (LayoutFrameType::ColumnSetWrapper == frameType) { |
| 7397 | newFrame = NS_NewColumnSetWrapperFrame(mPresShell, computedStyle, |
| 7398 | NS_FRAME_STATE_NONE); |
| 7399 | newFrame->Init(content, aParentFrame, aFrame); |
| 7400 | } else if (LayoutFrameType::ColumnSet == frameType) { |
| 7401 | MOZ_ASSERT(!aFrame->IsTableCaption(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aFrame->IsTableCaption())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aFrame->IsTableCaption() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aFrame->IsTableCaption()" " (" "no support for fragmenting table captions yet" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 7402 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aFrame->IsTableCaption()" ") (" "no support for fragmenting table captions yet" ")"); do { MOZ_CrashSequence(__null, 7402); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 7402 | "no support for fragmenting table captions yet")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aFrame->IsTableCaption())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aFrame->IsTableCaption() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!aFrame->IsTableCaption()" " (" "no support for fragmenting table captions yet" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 7402 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aFrame->IsTableCaption()" ") (" "no support for fragmenting table captions yet" ")"); do { MOZ_CrashSequence(__null, 7402); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 7403 | newFrame = |
| 7404 | NS_NewColumnSetFrame(mPresShell, computedStyle, NS_FRAME_STATE_NONE); |
| 7405 | newFrame->Init(content, aParentFrame, aFrame); |
| 7406 | } else if (LayoutFrameType::PrintedSheet == frameType) { |
| 7407 | newFrame = ConstructPrintedSheetFrame(mPresShell, aParentFrame, aFrame); |
| 7408 | } else if (LayoutFrameType::Page == frameType) { |
| 7409 | nsCanvasFrame* canvasFrame; // (unused outparam for ConstructPageFrame) |
| 7410 | newFrame = |
| 7411 | ConstructPageFrame(mPresShell, aParentFrame, aFrame, canvasFrame); |
| 7412 | } else if (LayoutFrameType::TableWrapper == frameType) { |
| 7413 | newFrame = CreateContinuingOuterTableFrame(aFrame, aParentFrame, content, |
| 7414 | computedStyle); |
| 7415 | } else if (LayoutFrameType::Table == frameType) { |
| 7416 | newFrame = CreateContinuingTableFrame(aFrame, aParentFrame, content, |
| 7417 | computedStyle); |
| 7418 | } else if (LayoutFrameType::TableRowGroup == frameType) { |
| 7419 | newFrame = NS_NewTableRowGroupFrame(mPresShell, computedStyle); |
| 7420 | newFrame->Init(content, aParentFrame, aFrame); |
| 7421 | } else if (LayoutFrameType::TableRow == frameType) { |
| 7422 | nsTableRowFrame* rowFrame = NS_NewTableRowFrame(mPresShell, computedStyle); |
| 7423 | |
| 7424 | rowFrame->Init(content, aParentFrame, aFrame); |
| 7425 | |
| 7426 | // Create a continuing frame for each table cell frame |
| 7427 | nsFrameList newChildList; |
| 7428 | nsIFrame* cellFrame = aFrame->PrincipalChildList().FirstChild(); |
| 7429 | while (cellFrame) { |
| 7430 | // See if it's a table cell frame |
| 7431 | if (cellFrame->IsTableCellFrame()) { |
| 7432 | nsIFrame* continuingCellFrame = |
| 7433 | CreateContinuingFrame(cellFrame, rowFrame); |
| 7434 | newChildList.AppendFrame(nullptr, continuingCellFrame); |
| 7435 | } |
| 7436 | cellFrame = cellFrame->GetNextSibling(); |
| 7437 | } |
| 7438 | |
| 7439 | rowFrame->SetInitialChildList(FrameChildListID::Principal, |
| 7440 | std::move(newChildList)); |
| 7441 | newFrame = rowFrame; |
| 7442 | |
| 7443 | } else if (LayoutFrameType::TableCell == frameType) { |
| 7444 | // Warning: If you change this and add a wrapper frame around table cell |
| 7445 | // frames, make sure Bug 368554 doesn't regress! |
| 7446 | // See IsInAutoWidthTableCellForQuirk() in nsImageFrame.cpp. |
| 7447 | nsTableFrame* tableFrame = |
| 7448 | static_cast<nsTableRowFrame*>(aParentFrame)->GetTableFrame(); |
| 7449 | nsTableCellFrame* cellFrame = |
| 7450 | NS_NewTableCellFrame(mPresShell, computedStyle, tableFrame); |
| 7451 | |
| 7452 | cellFrame->Init(content, aParentFrame, aFrame); |
| 7453 | |
| 7454 | // Create a continuing area frame |
| 7455 | nsIFrame* blockFrame = aFrame->PrincipalChildList().FirstChild(); |
| 7456 | nsIFrame* continuingBlockFrame = |
| 7457 | CreateContinuingFrame(blockFrame, cellFrame); |
| 7458 | |
| 7459 | SetInitialSingleChild(cellFrame, continuingBlockFrame); |
| 7460 | newFrame = cellFrame; |
| 7461 | } else if (LayoutFrameType::Line == frameType) { |
| 7462 | newFrame = NS_NewFirstLineFrame(mPresShell, computedStyle); |
| 7463 | newFrame->Init(content, aParentFrame, aFrame); |
| 7464 | } else if (LayoutFrameType::Letter == frameType) { |
| 7465 | newFrame = NS_NewFirstLetterFrame(mPresShell, computedStyle); |
| 7466 | newFrame->Init(content, aParentFrame, aFrame); |
| 7467 | } else if (LayoutFrameType::Image == frameType) { |
| 7468 | auto* imageFrame = static_cast<nsImageFrame*>(aFrame); |
| 7469 | newFrame = imageFrame->CreateContinuingFrame(mPresShell, computedStyle); |
| 7470 | newFrame->Init(content, aParentFrame, aFrame); |
| 7471 | } else if (LayoutFrameType::ImageControl == frameType) { |
| 7472 | newFrame = NS_NewImageControlFrame(mPresShell, computedStyle); |
| 7473 | newFrame->Init(content, aParentFrame, aFrame); |
| 7474 | } else if (LayoutFrameType::FieldSet == frameType) { |
| 7475 | newFrame = NS_NewFieldSetFrame(mPresShell, computedStyle); |
| 7476 | newFrame->Init(content, aParentFrame, aFrame); |
| 7477 | } else if (LayoutFrameType::FlexContainer == frameType) { |
| 7478 | newFrame = NS_NewFlexContainerFrame(mPresShell, computedStyle); |
| 7479 | newFrame->Init(content, aParentFrame, aFrame); |
| 7480 | } else if (LayoutFrameType::GridContainer == frameType) { |
| 7481 | newFrame = NS_NewGridContainerFrame(mPresShell, computedStyle); |
| 7482 | newFrame->Init(content, aParentFrame, aFrame); |
| 7483 | } else if (LayoutFrameType::Ruby == frameType) { |
| 7484 | newFrame = NS_NewRubyFrame(mPresShell, computedStyle); |
| 7485 | newFrame->Init(content, aParentFrame, aFrame); |
| 7486 | } else if (LayoutFrameType::RubyBaseContainer == frameType) { |
| 7487 | newFrame = NS_NewRubyBaseContainerFrame(mPresShell, computedStyle); |
| 7488 | newFrame->Init(content, aParentFrame, aFrame); |
| 7489 | } else if (LayoutFrameType::RubyTextContainer == frameType) { |
| 7490 | newFrame = NS_NewRubyTextContainerFrame(mPresShell, computedStyle); |
| 7491 | newFrame->Init(content, aParentFrame, aFrame); |
| 7492 | } else { |
| 7493 | MOZ_CRASH("unexpected frame type")do { do { } while (false); MOZ_ReportCrash("" "unexpected frame type" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 7493); AnnotateMozCrashReason ("MOZ_CRASH(" "unexpected frame type" ")"); do { MOZ_CrashSequence (__null, 7493); __attribute__((nomerge)) ::abort(); } while ( false); } while (false); |
| 7494 | } |
| 7495 | |
| 7496 | // Init() set newFrame to be a fluid continuation of aFrame. |
| 7497 | // If we want a non-fluid continuation, we need to call SetPrevContinuation() |
| 7498 | // to reset NS_FRAME_IS_FLUID_CONTINUATION. |
| 7499 | if (!aIsFluid) { |
| 7500 | newFrame->SetPrevContinuation(aFrame); |
| 7501 | } |
| 7502 | |
| 7503 | // If a continuing frame needs to carry frame state bits from its previous |
| 7504 | // continuation or parent, set them in nsIFrame::Init(), or in any derived |
| 7505 | // frame class's Init() if the bits are belong to specific group. |
| 7506 | |
| 7507 | if (nextInFlow) { |
| 7508 | nextInFlow->SetPrevInFlow(newFrame); |
| 7509 | newFrame->SetNextInFlow(nextInFlow); |
| 7510 | } else if (nextContinuation) { |
| 7511 | nextContinuation->SetPrevContinuation(newFrame); |
| 7512 | newFrame->SetNextContinuation(nextContinuation); |
| 7513 | } |
| 7514 | |
| 7515 | // aFrame cannot be a dynamic reflow root because it has a continuation now. |
| 7516 | aFrame->RemoveStateBits(NS_FRAME_DYNAMIC_REFLOW_ROOT); |
| 7517 | |
| 7518 | MOZ_ASSERT(!newFrame->GetNextSibling(), "unexpected sibling")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!newFrame->GetNextSibling())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!newFrame->GetNextSibling ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!newFrame->GetNextSibling()" " (" "unexpected sibling" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 7518); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!newFrame->GetNextSibling()" ") (" "unexpected sibling" ")"); do { MOZ_CrashSequence(__null, 7518); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7519 | return newFrame; |
| 7520 | } |
| 7521 | |
| 7522 | void nsCSSFrameConstructor::MaybeSetNextPageContentFramePageName( |
| 7523 | const nsIFrame* aFrame) { |
| 7524 | MOZ_ASSERT(aFrame, "Frame should not be null")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame" " (" "Frame should not be null" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 7524 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ") (" "Frame should not be null" ")"); do { MOZ_CrashSequence(__null, 7524); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7525 | // No parent means the root frame, which isn't what this funciton is for. |
| 7526 | MOZ_ASSERT(aFrame->GetParent(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->GetParent())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aFrame->GetParent()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame->GetParent()" " (" "Frame should be the first child placed on a new page, not the " "root frame." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7528); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->GetParent()" ") (" "Frame should be the first child placed on a new page, not the " "root frame." ")"); do { MOZ_CrashSequence(__null, 7528); __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false) |
| 7527 | "Frame should be the first child placed on a new page, not the "do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->GetParent())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aFrame->GetParent()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame->GetParent()" " (" "Frame should be the first child placed on a new page, not the " "root frame." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7528); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->GetParent()" ") (" "Frame should be the first child placed on a new page, not the " "root frame." ")"); do { MOZ_CrashSequence(__null, 7528); __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false) |
| 7528 | "root frame.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->GetParent())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aFrame->GetParent()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame->GetParent()" " (" "Frame should be the first child placed on a new page, not the " "root frame." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7528); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->GetParent()" ") (" "Frame should be the first child placed on a new page, not the " "root frame." ")"); do { MOZ_CrashSequence(__null, 7528); __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false); |
| 7529 | if (mNextPageContentFramePageName) { |
| 7530 | return; |
| 7531 | } |
| 7532 | const nsAtom* const autoValue = aFrame->GetParent()->GetAutoPageValue(); |
| 7533 | mNextPageContentFramePageName = aFrame->ComputePageValue(autoValue); |
| 7534 | } |
| 7535 | |
| 7536 | nsresult nsCSSFrameConstructor::ReplicateFixedFrames( |
| 7537 | nsPageContentFrame* aParentFrame) { |
| 7538 | // Now deal with fixed-pos things.... They should appear on all pages, |
| 7539 | // so we want to move over the placeholders when processing the child |
| 7540 | // of the pageContentFrame. |
| 7541 | |
| 7542 | nsIFrame* prevPageContentFrame = aParentFrame->GetPrevInFlow(); |
| 7543 | if (!prevPageContentFrame) { |
| 7544 | return NS_OK; |
| 7545 | } |
| 7546 | nsContainerFrame* canvasFrame = |
| 7547 | do_QueryFrame(aParentFrame->PrincipalChildList().FirstChild()); |
| 7548 | nsIFrame* prevCanvasFrame = |
| 7549 | prevPageContentFrame->PrincipalChildList().FirstChild(); |
| 7550 | if (!canvasFrame || !prevCanvasFrame) { |
| 7551 | // document's root element frame missing |
| 7552 | return NS_ERROR_UNEXPECTED; |
| 7553 | } |
| 7554 | |
| 7555 | nsFrameList fixedPlaceholders; |
| 7556 | nsIFrame* firstFixed = |
| 7557 | prevPageContentFrame->GetChildList(FrameChildListID::Absolute) |
| 7558 | .FirstChild(); |
| 7559 | if (!firstFixed) { |
| 7560 | return NS_OK; |
| 7561 | } |
| 7562 | |
| 7563 | // Don't allow abs-pos descendants of the fixed content to escape the content. |
| 7564 | // This should not normally be possible (because fixed-pos elements should |
| 7565 | // be absolute containers) but fixed-pos tables currently aren't abs-pos |
| 7566 | // containers. |
| 7567 | nsFrameConstructorState state(mPresShell, aParentFrame, nullptr, |
| 7568 | mRootElementFrame); |
| 7569 | state.mCreatingExtraFrames = true; |
| 7570 | |
| 7571 | // We can't use an ancestor filter here, because we're not going to |
| 7572 | // be usefully recurring down the tree. This means that other |
| 7573 | // places in frame construction can't assume a filter is |
| 7574 | // initialized! |
| 7575 | |
| 7576 | // Iterate across fixed frames and replicate each whose placeholder is a |
| 7577 | // descendant of aFrame. (We don't want to explicitly copy placeholders that |
| 7578 | // are within fixed frames, because that would cause duplicates on the new |
| 7579 | // page - bug 389619) |
| 7580 | for (nsIFrame* fixed = firstFixed; fixed; fixed = fixed->GetNextSibling()) { |
| 7581 | nsIFrame* prevPlaceholder = fixed->GetPlaceholderFrame(); |
| 7582 | if (prevPlaceholder && nsLayoutUtils::IsProperAncestorFrame( |
| 7583 | prevCanvasFrame, prevPlaceholder)) { |
| 7584 | // We want to use the same style as the primary style frame for |
| 7585 | // our content |
| 7586 | nsIContent* content = fixed->GetContent(); |
| 7587 | ComputedStyle* computedStyle = |
| 7588 | nsLayoutUtils::GetStyleFrame(content)->Style(); |
| 7589 | ItemFlags flags{ItemFlag::AllowPageBreak}; |
| 7590 | if (fixed->HasAnyStateBits(NS_FRAME_GENERATED_CONTENT)) { |
| 7591 | flags += ItemFlag::IsGeneratedContent; |
| 7592 | } |
| 7593 | AutoFrameConstructionItemList items(this); |
| 7594 | AddFrameConstructionItemsInternal(state, content, canvasFrame, true, |
| 7595 | computedStyle, flags, items); |
| 7596 | ConstructFramesFromItemList(state, items, canvasFrame, |
| 7597 | /* aParentIsWrapperAnonBox = */ false, |
| 7598 | fixedPlaceholders); |
| 7599 | } |
| 7600 | } |
| 7601 | |
| 7602 | // Add the placeholders to our primary child list. |
| 7603 | // XXXbz this is a little screwed up, since the fixed frames will have |
| 7604 | // broken auto-positioning. Oh, well. |
| 7605 | NS_ASSERTION(!canvasFrame->PrincipalChildList().FirstChild(),do { if (!(!canvasFrame->PrincipalChildList().FirstChild() )) { NS_DebugBreak(NS_DEBUG_ASSERTION, "leaking frames; doc root continuation must be empty" , "!canvasFrame->PrincipalChildList().FirstChild()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7606); MOZ_PretendNoReturn(); } } while (0) |
| 7606 | "leaking frames; doc root continuation must be empty")do { if (!(!canvasFrame->PrincipalChildList().FirstChild() )) { NS_DebugBreak(NS_DEBUG_ASSERTION, "leaking frames; doc root continuation must be empty" , "!canvasFrame->PrincipalChildList().FirstChild()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7606); MOZ_PretendNoReturn(); } } while (0); |
| 7607 | canvasFrame->SetInitialChildList(FrameChildListID::Principal, |
| 7608 | std::move(fixedPlaceholders)); |
| 7609 | return NS_OK; |
| 7610 | } |
| 7611 | |
| 7612 | nsCSSFrameConstructor::InsertionPoint nsCSSFrameConstructor::GetInsertionPoint( |
| 7613 | nsIContent* aChild) { |
| 7614 | MOZ_ASSERT(aChild)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChild)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aChild", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7614); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChild" ")" ); do { MOZ_CrashSequence(__null, 7614); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7615 | nsIContent* insertionElement = aChild->GetFlattenedTreeParent(); |
| 7616 | if (!insertionElement) { |
| 7617 | // The element doesn't belong in the flattened tree, and thus we don't want |
| 7618 | // to render it. |
| 7619 | return {}; |
| 7620 | } |
| 7621 | |
| 7622 | return {GetContentInsertionFrameFor(insertionElement), insertionElement}; |
| 7623 | } |
| 7624 | |
| 7625 | static bool IsWhitespaceFrame(nsIFrame* aFrame) { |
| 7626 | MOZ_ASSERT(aFrame, "invalid argument")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame" " (" "invalid argument" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 7626 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ") (" "invalid argument" ")"); do { MOZ_CrashSequence(__null, 7626); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7627 | return aFrame->IsTextFrame() && aFrame->GetContent()->TextIsOnlyWhitespace(); |
| 7628 | } |
| 7629 | |
| 7630 | static nsIFrame* FindNextNonWhitespaceSibling(nsIFrame* aFrame) { |
| 7631 | nsIFrame* f = aFrame; |
| 7632 | do { |
| 7633 | f = f->GetNextSibling(); |
| 7634 | } while (f && IsWhitespaceFrame(f)); |
| 7635 | return f; |
| 7636 | } |
| 7637 | |
| 7638 | static nsIFrame* FindPreviousNonWhitespaceSibling(nsIFrame* aFrame) { |
| 7639 | nsIFrame* f = aFrame; |
| 7640 | do { |
| 7641 | f = f->GetPrevSibling(); |
| 7642 | } while (f && IsWhitespaceFrame(f)); |
| 7643 | return f; |
| 7644 | } |
| 7645 | |
| 7646 | // Returns whether aFrame is inside a table that is fragmented across pages. |
| 7647 | // Such tables can't deal with removals (see nsTableCellMap::Synchronize and |
| 7648 | // CreateContinuingTableFrame). |
| 7649 | static bool IsInFragmentedTable(nsIFrame* aFrame) { |
| 7650 | for (nsIFrame* f = aFrame->GetParent(); f; f = f->GetParent()) { |
| 7651 | if (f->IsTableFrame() && (f->GetPrevInFlow() || f->GetNextInFlow())) { |
| 7652 | return true; |
| 7653 | } |
| 7654 | } |
| 7655 | return false; |
| 7656 | } |
| 7657 | |
| 7658 | static nsIFrame* CheckRubyContainers(nsIFrame* aFrame, nsIFrame* aParent) { |
| 7659 | auto* ancestor = aParent; |
| 7660 | auto* ancestorChild = aFrame; |
| 7661 | while (ancestor && IsWrapperPseudo(ancestor) && |
| 7662 | CanRemoveWrapperPseudoForChildRemoval(ancestorChild, ancestor)) { |
| 7663 | ancestorChild = ancestor; |
| 7664 | ancestor = ancestorChild->GetParent(); |
| 7665 | } |
| 7666 | if (!ancestor) { |
| 7667 | return nullptr; |
| 7668 | } |
| 7669 | const auto ancestorType = ancestor->Type(); |
| 7670 | if (ancestorType != LayoutFrameType::Ruby && |
| 7671 | !RubyUtils::IsRubyContainerBox(ancestorType)) { |
| 7672 | return nullptr; |
| 7673 | } |
| 7674 | return ancestor; |
| 7675 | } |
| 7676 | |
| 7677 | bool nsCSSFrameConstructor::MaybeRecreateContainerForFrameRemoval( |
| 7678 | nsIFrame* aFrame) { |
| 7679 | #define TRACE(reason) \ |
| 7680 | PROFILER_MARKER("MaybeRecreateContainerForFrameRemoval: " reason, LAYOUT, \do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("MaybeRecreateContainerForFrameRemoval: " reason, ::geckoprofiler ::category::LAYOUT, {}, ::geckoprofiler::markers::Tracing{}, "Layout" ); } } while (false); } while (false) |
| 7681 | {}, Tracing, "Layout")do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("MaybeRecreateContainerForFrameRemoval: " reason, ::geckoprofiler ::category::LAYOUT, {}, ::geckoprofiler::markers::Tracing{}, "Layout" ); } } while (false); } while (false) |
| 7682 | MOZ_ASSERT(aFrame, "Must have a frame")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame" " (" "Must have a frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 7682 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ") (" "Must have a frame" ")"); do { MOZ_CrashSequence(__null, 7682); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7683 | MOZ_ASSERT(aFrame->GetParent(), "Frame shouldn't be root")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->GetParent())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aFrame->GetParent()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame->GetParent()" " (" "Frame shouldn't be root" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7683); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->GetParent()" ") (" "Frame shouldn't be root" ")"); do { MOZ_CrashSequence (__null, 7683); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 7684 | MOZ_ASSERT(aFrame == aFrame->FirstContinuation(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame == aFrame->FirstContinuation())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aFrame == aFrame->FirstContinuation()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame == aFrame->FirstContinuation()" " (" "aFrame not the result of GetPrimaryFrame()?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7685); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame == aFrame->FirstContinuation()" ") (" "aFrame not the result of GetPrimaryFrame()?" ")"); do { MOZ_CrashSequence(__null, 7685); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 7685 | "aFrame not the result of GetPrimaryFrame()?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame == aFrame->FirstContinuation())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aFrame == aFrame->FirstContinuation()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame == aFrame->FirstContinuation()" " (" "aFrame not the result of GetPrimaryFrame()?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7685); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame == aFrame->FirstContinuation()" ") (" "aFrame not the result of GetPrimaryFrame()?" ")"); do { MOZ_CrashSequence(__null, 7685); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 7686 | |
| 7687 | nsIFrame* inFlowFrame = aFrame->HasAnyStateBits(NS_FRAME_OUT_OF_FLOW) |
| 7688 | ? aFrame->GetPlaceholderFrame() |
| 7689 | : aFrame; |
| 7690 | MOZ_ASSERT(inFlowFrame, "How did that happen?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(inFlowFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(inFlowFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("inFlowFrame" " (" "How did that happen?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7690); AnnotateMozCrashReason("MOZ_ASSERT" "(" "inFlowFrame" ") (" "How did that happen?" ")"); do { MOZ_CrashSequence(__null , 7690); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 7691 | MOZ_ASSERT(inFlowFrame == inFlowFrame->FirstContinuation(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(inFlowFrame == inFlowFrame->FirstContinuation())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(inFlowFrame == inFlowFrame->FirstContinuation())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("inFlowFrame == inFlowFrame->FirstContinuation()" " (" "placeholder for primary frame has previous continuations?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 7692 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "inFlowFrame == inFlowFrame->FirstContinuation()" ") (" "placeholder for primary frame has previous continuations?" ")"); do { MOZ_CrashSequence(__null, 7692); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 7692 | "placeholder for primary frame has previous continuations?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(inFlowFrame == inFlowFrame->FirstContinuation())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(inFlowFrame == inFlowFrame->FirstContinuation())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("inFlowFrame == inFlowFrame->FirstContinuation()" " (" "placeholder for primary frame has previous continuations?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 7692 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "inFlowFrame == inFlowFrame->FirstContinuation()" ") (" "placeholder for primary frame has previous continuations?" ")"); do { MOZ_CrashSequence(__null, 7692); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7693 | nsIFrame* parent = inFlowFrame->GetParent(); |
| 7694 | |
| 7695 | if (inFlowFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)) { |
| 7696 | nsIFrame* grandparent = parent->GetParent(); |
| 7697 | MOZ_ASSERT(grandparent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(grandparent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(grandparent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("grandparent", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7697); AnnotateMozCrashReason("MOZ_ASSERT" "(" "grandparent" ")"); do { MOZ_CrashSequence(__null, 7697); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7698 | |
| 7699 | bool needsReframe = |
| 7700 | // 1. Removing a column-span may lead to an empty |
| 7701 | // ::-moz-column-span-wrapper. |
| 7702 | inFlowFrame->IsColumnSpan() || |
| 7703 | // 2. Removing a frame which has any column-span siblings may also |
| 7704 | // lead to an empty ::-moz-column-span-wrapper subtree. The |
| 7705 | // column-span siblings were the frame's children, but later become |
| 7706 | // the frame's siblings after CreateColumnSpanSiblings(). |
| 7707 | inFlowFrame->HasColumnSpanSiblings() || |
| 7708 | // 3. Removing the only child of a ::-moz-column-content, whose |
| 7709 | // ColumnSet grandparent has a previous column-span sibling, requires |
| 7710 | // reframing since we might connect the ColumnSet's next column-span |
| 7711 | // sibling (if there's one). Note that this isn't actually needed if |
| 7712 | // the ColumnSet is at the end of ColumnSetWrapper since we create |
| 7713 | // empty ones at the end anyway, but we're not worried about |
| 7714 | // optimizing that case. |
| 7715 | (parent->Style()->GetPseudoType() == |
| 7716 | PseudoStyleType::MozColumnContent && |
| 7717 | // The only child in ::-moz-column-content (might be tall enough to |
| 7718 | // split across columns) |
| 7719 | !inFlowFrame->GetPrevSibling() && !inFlowFrame->GetNextSibling() && |
| 7720 | // That ::-moz-column-content is the first column. |
| 7721 | !parent->GetPrevInFlow() && |
| 7722 | // The ColumnSet grandparent has a previous sibling that is a |
| 7723 | // column-span. |
| 7724 | grandparent->GetPrevSibling()); |
| 7725 | |
| 7726 | if (needsReframe) { |
| 7727 | nsContainerFrame* containingBlock = |
| 7728 | GetMultiColumnContainingBlockFor(inFlowFrame); |
| 7729 | |
| 7730 | #ifdef DEBUG1 |
| 7731 | if (IsFramePartOfIBSplit(inFlowFrame)) { |
| 7732 | nsIFrame* ibContainingBlock = GetIBContainingBlockFor(inFlowFrame); |
| 7733 | MOZ_ASSERT(containingBlock == ibContainingBlock ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(containingBlock == ibContainingBlock || nsLayoutUtils ::IsProperAncestorFrame(containingBlock, ibContainingBlock))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(containingBlock == ibContainingBlock || nsLayoutUtils ::IsProperAncestorFrame(containingBlock, ibContainingBlock))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("containingBlock == ibContainingBlock || nsLayoutUtils::IsProperAncestorFrame(containingBlock, ibContainingBlock)" " (" "Multi-column containing block should be equal to or be the " "ancestor of the IB containing block!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7737); AnnotateMozCrashReason("MOZ_ASSERT" "(" "containingBlock == ibContainingBlock || nsLayoutUtils::IsProperAncestorFrame(containingBlock, ibContainingBlock)" ") (" "Multi-column containing block should be equal to or be the " "ancestor of the IB containing block!" ")"); do { MOZ_CrashSequence (__null, 7737); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 7734 | nsLayoutUtils::IsProperAncestorFrame(containingBlock,do { static_assert( mozilla::detail::AssertionConditionType< decltype(containingBlock == ibContainingBlock || nsLayoutUtils ::IsProperAncestorFrame(containingBlock, ibContainingBlock))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(containingBlock == ibContainingBlock || nsLayoutUtils ::IsProperAncestorFrame(containingBlock, ibContainingBlock))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("containingBlock == ibContainingBlock || nsLayoutUtils::IsProperAncestorFrame(containingBlock, ibContainingBlock)" " (" "Multi-column containing block should be equal to or be the " "ancestor of the IB containing block!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7737); AnnotateMozCrashReason("MOZ_ASSERT" "(" "containingBlock == ibContainingBlock || nsLayoutUtils::IsProperAncestorFrame(containingBlock, ibContainingBlock)" ") (" "Multi-column containing block should be equal to or be the " "ancestor of the IB containing block!" ")"); do { MOZ_CrashSequence (__null, 7737); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 7735 | ibContainingBlock),do { static_assert( mozilla::detail::AssertionConditionType< decltype(containingBlock == ibContainingBlock || nsLayoutUtils ::IsProperAncestorFrame(containingBlock, ibContainingBlock))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(containingBlock == ibContainingBlock || nsLayoutUtils ::IsProperAncestorFrame(containingBlock, ibContainingBlock))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("containingBlock == ibContainingBlock || nsLayoutUtils::IsProperAncestorFrame(containingBlock, ibContainingBlock)" " (" "Multi-column containing block should be equal to or be the " "ancestor of the IB containing block!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7737); AnnotateMozCrashReason("MOZ_ASSERT" "(" "containingBlock == ibContainingBlock || nsLayoutUtils::IsProperAncestorFrame(containingBlock, ibContainingBlock)" ") (" "Multi-column containing block should be equal to or be the " "ancestor of the IB containing block!" ")"); do { MOZ_CrashSequence (__null, 7737); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 7736 | "Multi-column containing block should be equal to or be the "do { static_assert( mozilla::detail::AssertionConditionType< decltype(containingBlock == ibContainingBlock || nsLayoutUtils ::IsProperAncestorFrame(containingBlock, ibContainingBlock))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(containingBlock == ibContainingBlock || nsLayoutUtils ::IsProperAncestorFrame(containingBlock, ibContainingBlock))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("containingBlock == ibContainingBlock || nsLayoutUtils::IsProperAncestorFrame(containingBlock, ibContainingBlock)" " (" "Multi-column containing block should be equal to or be the " "ancestor of the IB containing block!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7737); AnnotateMozCrashReason("MOZ_ASSERT" "(" "containingBlock == ibContainingBlock || nsLayoutUtils::IsProperAncestorFrame(containingBlock, ibContainingBlock)" ") (" "Multi-column containing block should be equal to or be the " "ancestor of the IB containing block!" ")"); do { MOZ_CrashSequence (__null, 7737); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 7737 | "ancestor of the IB containing block!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(containingBlock == ibContainingBlock || nsLayoutUtils ::IsProperAncestorFrame(containingBlock, ibContainingBlock))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(containingBlock == ibContainingBlock || nsLayoutUtils ::IsProperAncestorFrame(containingBlock, ibContainingBlock))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("containingBlock == ibContainingBlock || nsLayoutUtils::IsProperAncestorFrame(containingBlock, ibContainingBlock)" " (" "Multi-column containing block should be equal to or be the " "ancestor of the IB containing block!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7737); AnnotateMozCrashReason("MOZ_ASSERT" "(" "containingBlock == ibContainingBlock || nsLayoutUtils::IsProperAncestorFrame(containingBlock, ibContainingBlock)" ") (" "Multi-column containing block should be equal to or be the " "ancestor of the IB containing block!" ")"); do { MOZ_CrashSequence (__null, 7737); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 7738 | } |
| 7739 | #endif |
| 7740 | |
| 7741 | TRACE("Multi-column"); |
| 7742 | RecreateFramesForContent(containingBlock->GetContent(), |
| 7743 | InsertionKind::Async); |
| 7744 | return true; |
| 7745 | } |
| 7746 | } |
| 7747 | |
| 7748 | if (aFrame->PresContext()->IsPaginated() && |
| 7749 | aFrame->GetContent() != mDocument->GetRootElement() && |
| 7750 | (IsInFragmentedTable(inFlowFrame) || |
| 7751 | aFrame->IsInReplicatedFixedPosTree())) { |
| 7752 | // Fragmented tables and replicated fixed-pos frames on subsequent pages |
| 7753 | // can't deal with removals. Rebuild the whole document instead, which also |
| 7754 | // makes sure that the new frames get reflowed, since paginated documents |
| 7755 | // don't do incremental reflow (see nsPageSequenceFrame::Reflow). |
| 7756 | TRACE("Paginated fragmented content"); |
| 7757 | RecreateFramesForContent(mDocument->GetRootElement(), InsertionKind::Async); |
| 7758 | return true; |
| 7759 | } |
| 7760 | |
| 7761 | if (IsFramePartOfIBSplit(aFrame)) { |
| 7762 | // The removal functions can't handle removal of an {ib} split directly; we |
| 7763 | // need to rebuild the containing block. |
| 7764 | TRACE("IB split removal"); |
| 7765 | ReframeContainingBlock(aFrame); |
| 7766 | return true; |
| 7767 | } |
| 7768 | |
| 7769 | if (inFlowFrame->IsRenderedLegend()) { |
| 7770 | TRACE("Fieldset / Legend"); |
| 7771 | RecreateFramesForContent(parent->GetContent(), InsertionKind::Async); |
| 7772 | return true; |
| 7773 | } |
| 7774 | |
| 7775 | // Might need to reconstruct things if this frame's nextSibling is a table |
| 7776 | // or ruby pseudo, since removal of this frame might mean that this pseudo |
| 7777 | // needs to get merged with the frame's prevSibling if that's also a table |
| 7778 | // or ruby pseudo. |
| 7779 | nsIFrame* nextSibling = |
| 7780 | FindNextNonWhitespaceSibling(inFlowFrame->LastContinuation()); |
| 7781 | NS_ASSERTION(!IsWrapperPseudo(inFlowFrame),do { if (!(!IsWrapperPseudo(inFlowFrame))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Shouldn't happen here (we start removals from primary frames)" , "!IsWrapperPseudo(inFlowFrame)", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7782); MOZ_PretendNoReturn(); } } while (0) |
| 7782 | "Shouldn't happen here (we start removals from primary frames)")do { if (!(!IsWrapperPseudo(inFlowFrame))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Shouldn't happen here (we start removals from primary frames)" , "!IsWrapperPseudo(inFlowFrame)", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7782); MOZ_PretendNoReturn(); } } while (0); |
| 7783 | // Effectively, for the ruby pseudo sibling case, only pseudo <ruby> frame |
| 7784 | // need to be checked here, since all other types of such frames will have |
| 7785 | // a ruby container parent, and be catched by "Check ruby containers" below. |
| 7786 | if (nextSibling && IsWrapperPseudo(nextSibling)) { |
| 7787 | nsIFrame* prevSibling = FindPreviousNonWhitespaceSibling(inFlowFrame); |
| 7788 | if (prevSibling && IsWrapperPseudo(prevSibling)) { |
| 7789 | TRACE("Pseudo sibling"); |
| 7790 | // Good enough to recreate frames for aFrame's parent's content; even if |
| 7791 | // aFrame's parent is a pseudo, that'll be the right content node. |
| 7792 | // FIXME(emilio): Consider doing a more subtle check here like, only if |
| 7793 | // prevSibling and nextSibling share frame type. Or even consider just |
| 7794 | // moving the frames around and destroying nextSibling? |
| 7795 | RecreateFramesForContent(parent->GetContent(), InsertionKind::Async); |
| 7796 | return true; |
| 7797 | } |
| 7798 | } |
| 7799 | |
| 7800 | // Check ruby containers |
| 7801 | if (const auto* ancestor = CheckRubyContainers(inFlowFrame, parent)) { |
| 7802 | // In ruby containers, pseudo frames may be created from |
| 7803 | // whitespaces or even nothing. There are two cases we actually |
| 7804 | // need to handle here, but hard to check exactly: |
| 7805 | // 1. Status of spaces beside the frame may vary, and related |
| 7806 | // frames may be constructed or destroyed accordingly. |
| 7807 | // 2. The type of the first child of a ruby frame determines |
| 7808 | // whether a pseudo ruby base container should exist. |
| 7809 | TRACE("Ruby container"); |
| 7810 | RecreateFramesForContent(ancestor->GetContent(), InsertionKind::Async); |
| 7811 | return true; |
| 7812 | } |
| 7813 | |
| 7814 | // Reconstruct if inflowFrame is parent's only child, and parent is, or has, |
| 7815 | // a non-fluid continuation, i.e. it was split by bidi resolution |
| 7816 | if (!inFlowFrame->GetPrevSibling() && !inFlowFrame->GetNextSibling() && |
| 7817 | ((parent->GetPrevContinuation() && !parent->GetPrevInFlow()) || |
| 7818 | (parent->GetNextContinuation() && !parent->GetNextInFlow()))) { |
| 7819 | TRACE("Removing last child of non-fluid split parent"); |
| 7820 | RecreateFramesForContent(parent->GetContent(), InsertionKind::Async); |
| 7821 | return true; |
| 7822 | } |
| 7823 | |
| 7824 | // We might still need to reconstruct things if the parent of inFlowFrame is |
| 7825 | // ib-split, since in that case the removal of aFrame might affect the |
| 7826 | // splitting of its parent. |
| 7827 | if (!IsFramePartOfIBSplit(parent)) { |
| 7828 | return false; |
| 7829 | } |
| 7830 | |
| 7831 | // If inFlowFrame is not the only in-flow child of |parent|, then removing |
| 7832 | // it will change nothing about the {ib} split. |
| 7833 | if (inFlowFrame != parent->PrincipalChildList().FirstChild() || |
| 7834 | inFlowFrame->LastContinuation()->GetNextSibling()) { |
| 7835 | return false; |
| 7836 | } |
| 7837 | |
| 7838 | // If the parent is the first or last part of the {ib} split, then |
| 7839 | // removing one of its kids will have no effect on the splitting. |
| 7840 | // Get the first continuation up front so we don't have to do it twice. |
| 7841 | nsIFrame* parentFirstContinuation = parent->FirstContinuation(); |
| 7842 | if (!GetIBSplitSibling(parentFirstContinuation) || |
| 7843 | !GetIBSplitPrevSibling(parentFirstContinuation)) { |
| 7844 | return false; |
| 7845 | } |
| 7846 | |
| 7847 | TRACE("IB split parent"); |
| 7848 | ReframeContainingBlock(parent); |
| 7849 | return true; |
| 7850 | #undef TRACE |
| 7851 | } |
| 7852 | |
| 7853 | void nsCSSFrameConstructor::UpdateTableCellSpans(nsIContent* aContent) { |
| 7854 | nsTableCellFrame* cellFrame = do_QueryFrame(aContent->GetPrimaryFrame()); |
| 7855 | |
| 7856 | // It's possible that this warning could fire if some other style change |
| 7857 | // simultaneously changes the 'display' of the element and makes it no |
| 7858 | // longer be a table cell. |
| 7859 | NS_WARNING_ASSERTION(cellFrame, "Hint should only be posted on table cells!")do { if (!(cellFrame)) { NS_DebugBreak(NS_DEBUG_WARNING, "Hint should only be posted on table cells!" , "cellFrame", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7859); } } while (false); |
| 7860 | |
| 7861 | if (cellFrame) { |
| 7862 | cellFrame->GetTableFrame()->RowOrColSpanChanged(cellFrame); |
| 7863 | } |
| 7864 | } |
| 7865 | |
| 7866 | static nsIContent* GetTopmostMathMLElement(nsIContent* aMathMLContent) { |
| 7867 | MOZ_ASSERT(aMathMLContent->IsMathMLElement())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMathMLContent->IsMathMLElement())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMathMLContent->IsMathMLElement ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aMathMLContent->IsMathMLElement()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7867); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMathMLContent->IsMathMLElement()" ")"); do { MOZ_CrashSequence(__null, 7867); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7868 | MOZ_ASSERT(aMathMLContent->GetPrimaryFrame())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMathMLContent->GetPrimaryFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMathMLContent->GetPrimaryFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aMathMLContent->GetPrimaryFrame()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7868); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMathMLContent->GetPrimaryFrame()" ")"); do { MOZ_CrashSequence(__null, 7868); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7869 | MOZ_ASSERT(aMathMLContent->GetPrimaryFrame()->IsMathMLFrame())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMathMLContent->GetPrimaryFrame()->IsMathMLFrame ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aMathMLContent->GetPrimaryFrame()->IsMathMLFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aMathMLContent->GetPrimaryFrame()->IsMathMLFrame()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7869); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMathMLContent->GetPrimaryFrame()->IsMathMLFrame()" ")"); do { MOZ_CrashSequence(__null, 7869); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7870 | nsIContent* root = aMathMLContent; |
| 7871 | |
| 7872 | for (nsIContent* parent = aMathMLContent->GetFlattenedTreeParent(); parent; |
| 7873 | parent = parent->GetFlattenedTreeParent()) { |
| 7874 | nsIFrame* frame = parent->GetPrimaryFrame(); |
| 7875 | if (!frame || !frame->IsMathMLFrame()) { |
| 7876 | break; |
| 7877 | } |
| 7878 | root = parent; |
| 7879 | } |
| 7880 | |
| 7881 | return root; |
| 7882 | } |
| 7883 | |
| 7884 | // We don't know how to re-insert an anonymous subtree root, so recreate the |
| 7885 | // closest non-generated ancestor instead, except for a few special cases... |
| 7886 | static bool ShouldRecreateContainerForNativeAnonymousContentRoot( |
| 7887 | nsIContent* aContent) { |
| 7888 | if (!aContent->IsRootOfNativeAnonymousSubtree()) { |
| 7889 | return false; |
| 7890 | } |
| 7891 | if (ManualNACPtr::IsManualNAC(aContent)) { |
| 7892 | // Editor NAC, would enter an infinite loop, and we sorta get away with it |
| 7893 | // because it's all abspos. |
| 7894 | return false; |
| 7895 | } |
| 7896 | if (auto* el = Element::FromNode(aContent)) { |
| 7897 | if (el->GetPseudoElementType() == |
| 7898 | PseudoStyleType::MozSnapshotContainingBlock) { |
| 7899 | // Much like above, all abspos and on its own top layer so insertion order |
| 7900 | // wouldn't really matter anyways. |
| 7901 | return false; |
| 7902 | } |
| 7903 | if (auto* classes = el->GetClasses()) { |
| 7904 | if (classes->Contains(nsGkAtoms::mozCustomContentContainer, |
| 7905 | eCaseMatters)) { |
| 7906 | // Canvas anonymous content (like the custom content container) is also |
| 7907 | // fine, because its only sibling is a tooltip which is also abspos, so |
| 7908 | // relative insertion order doesn't really matter. |
| 7909 | // |
| 7910 | // This is important because the inspector uses it, and we don't want |
| 7911 | // inspecting the page to change behavior heavily (and reframing |
| 7912 | // unfortunately has side-effects sometimes, even though they're bugs). |
| 7913 | return false; |
| 7914 | } |
| 7915 | } |
| 7916 | } |
| 7917 | |
| 7918 | return true; |
| 7919 | } |
| 7920 | |
| 7921 | void nsCSSFrameConstructor::RecreateFramesForContent( |
| 7922 | nsIContent* aContent, InsertionKind aInsertionKind) { |
| 7923 | MOZ_ASSERT(aContent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aContent", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7923); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContent" ")" ); do { MOZ_CrashSequence(__null, 7923); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7924 | |
| 7925 | // If there is no document, we don't want to recreate frames for it. (You |
| 7926 | // shouldn't generally be giving this method content without a document |
| 7927 | // anyway). |
| 7928 | // Rebuilding the frame tree can have bad effects, especially if it's the |
| 7929 | // frame tree for chrome (see bug 157322). |
| 7930 | if (NS_WARN_IF(!aContent->GetComposedDoc())NS_warn_if_impl(!aContent->GetComposedDoc(), "!aContent->GetComposedDoc()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 7930)) { |
| 7931 | return; |
| 7932 | } |
| 7933 | |
| 7934 | // TODO(emilio): We technically can find the right insertion point nowadays |
| 7935 | // using StyleChildrenIterator rather than FlattenedChildIterator. But we'd |
| 7936 | // need to tweak the setup to insert into replaced elements to filter which |
| 7937 | // anonymous roots can be allowed, and which can't. |
| 7938 | // |
| 7939 | // TODO(emilio, 2022): Is this true? If we have a replaced element we wouldn't |
| 7940 | // have generated e.g., a ::before/::after pseudo-element to begin with (which |
| 7941 | // is what this code is about, so maybe we can just remove this piece of code |
| 7942 | // altogether). |
| 7943 | if (ShouldRecreateContainerForNativeAnonymousContentRoot(aContent)) { |
| 7944 | do { |
| 7945 | aContent = aContent->GetParent(); |
| 7946 | } while (ShouldRecreateContainerForNativeAnonymousContentRoot(aContent)); |
| 7947 | return RecreateFramesForContent(aContent, InsertionKind::Async); |
| 7948 | } |
| 7949 | |
| 7950 | nsIFrame* frame = aContent->GetPrimaryFrame(); |
| 7951 | if (frame && frame->IsMathMLFrame()) { |
| 7952 | // Reframe the topmost MathML element to prevent exponential blowup |
| 7953 | // (see bug 397518). |
| 7954 | aContent = GetTopmostMathMLElement(aContent); |
| 7955 | frame = aContent->GetPrimaryFrame(); |
| 7956 | } |
| 7957 | |
| 7958 | if (frame) { |
| 7959 | nsIFrame* parent = frame->GetParent(); |
| 7960 | nsIContent* parentContent = parent ? parent->GetContent() : nullptr; |
| 7961 | // If the parent frame is a leaf then the subsequent insert will fail to |
| 7962 | // create a frame, so we need to recreate the parent content. This happens |
| 7963 | // with native anonymous content from the editor. |
| 7964 | if (parent && parent->IsLeaf() && parentContent && |
| 7965 | parentContent != aContent) { |
| 7966 | return RecreateFramesForContent(parentContent, InsertionKind::Async); |
| 7967 | } |
| 7968 | } |
| 7969 | |
| 7970 | if (frame && MaybeRecreateContainerForFrameRemoval(frame)) { |
| 7971 | return; |
| 7972 | } |
| 7973 | |
| 7974 | MOZ_ASSERT(aContent->GetParentNode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContent->GetParentNode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContent->GetParentNode() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aContent->GetParentNode()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 7974); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContent->GetParentNode()" ")"); do { MOZ_CrashSequence(__null, 7974); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7975 | const auto removalKind = [&] { |
| 7976 | if (aInsertionKind == InsertionKind::Sync && aContent->IsElement() && |
| 7977 | Servo_Element_IsDisplayNone(aContent->AsElement())) { |
| 7978 | // If we know we're not going to have frames after reconstructing, it's |
| 7979 | // more efficient to do some of that work (a11y notifications, fixing-up |
| 7980 | // text nodes) earlier. |
| 7981 | return RemovalKind::ForDisplayNoneChange; |
| 7982 | } |
| 7983 | return RemovalKind::ForReconstruction; |
| 7984 | }(); |
| 7985 | const bool didReconstruct = ContentWillBeRemoved(aContent, removalKind); |
| 7986 | if (didReconstruct || removalKind == RemovalKind::ForDisplayNoneChange) { |
| 7987 | // If ContentWillBeRemoved triggered reconstruction, then we don't need to |
| 7988 | // do anything else because the frames will already have been built. |
| 7989 | return; |
| 7990 | } |
| 7991 | if (aInsertionKind == InsertionKind::Async && aContent->IsElement()) { |
| 7992 | // FIXME(emilio, bug 1397239): There's nothing removing the frame state |
| 7993 | // for elements that go away before we come back to the frame constructor. |
| 7994 | // |
| 7995 | // Also, it'd be nice to just use the `ContentRangeInserted` path for |
| 7996 | // both elements and non-elements, but we need to make lazy frame |
| 7997 | // construction to apply to all elements first. |
| 7998 | // |
| 7999 | // TODO(emilio): I think lazy frame construction works everywhere now, so |
| 8000 | // maybe we can remove this altogether? |
| 8001 | RestyleManager()->PostRestyleEvent(aContent->AsElement(), RestyleHint{0}, |
| 8002 | nsChangeHint_ReconstructFrame); |
| 8003 | return; |
| 8004 | } |
| 8005 | // Now, recreate the frames associated with this content object. |
| 8006 | ContentRangeInserted(aContent, aContent->GetNextSibling(), aInsertionKind); |
| 8007 | } |
| 8008 | |
| 8009 | bool nsCSSFrameConstructor::DestroyFramesFor(nsIContent* aContent) { |
| 8010 | MOZ_ASSERT(aContent && aContent->GetParentNode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContent && aContent->GetParentNode())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aContent && aContent->GetParentNode()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aContent && aContent->GetParentNode()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8010); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aContent && aContent->GetParentNode()" ")"); do { MOZ_CrashSequence(__null, 8010); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8011 | return ContentWillBeRemoved(aContent, RemovalKind::ForReconstruction); |
| 8012 | } |
| 8013 | |
| 8014 | ////////////////////////////////////////////////////////////////////// |
| 8015 | |
| 8016 | // Block frame construction code |
| 8017 | |
| 8018 | already_AddRefed<ComputedStyle> nsCSSFrameConstructor::GetFirstLetterStyle( |
| 8019 | nsIContent* aContent, ComputedStyle* aComputedStyle) { |
| 8020 | if (aContent) { |
| 8021 | return mPresShell->StyleSet()->ResolvePseudoElementStyle( |
| 8022 | *aContent->AsElement(), PseudoStyleType::FirstLetter, nullptr, |
| 8023 | aComputedStyle); |
| 8024 | } |
| 8025 | return nullptr; |
| 8026 | } |
| 8027 | |
| 8028 | already_AddRefed<ComputedStyle> nsCSSFrameConstructor::GetFirstLineStyle( |
| 8029 | nsIContent* aContent, ComputedStyle* aComputedStyle) { |
| 8030 | if (aContent) { |
| 8031 | return mPresShell->StyleSet()->ResolvePseudoElementStyle( |
| 8032 | *aContent->AsElement(), PseudoStyleType::FirstLine, nullptr, |
| 8033 | aComputedStyle); |
| 8034 | } |
| 8035 | return nullptr; |
| 8036 | } |
| 8037 | |
| 8038 | // Predicate to see if a given content (block element) has |
| 8039 | // first-letter style applied to it. |
| 8040 | bool nsCSSFrameConstructor::ShouldHaveFirstLetterStyle( |
| 8041 | nsIContent* aContent, ComputedStyle* aComputedStyle) { |
| 8042 | return nsLayoutUtils::HasPseudoStyle(aContent, aComputedStyle, |
| 8043 | PseudoStyleType::FirstLetter, |
| 8044 | mPresShell->GetPresContext()); |
| 8045 | } |
| 8046 | |
| 8047 | bool nsCSSFrameConstructor::HasFirstLetterStyle(nsIFrame* aBlockFrame) { |
| 8048 | MOZ_ASSERT(aBlockFrame, "Need a frame")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aBlockFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aBlockFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aBlockFrame" " (" "Need a frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8048); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aBlockFrame" ") (" "Need a frame" ")"); do { MOZ_CrashSequence(__null, 8048 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 8049 | NS_ASSERTION(aBlockFrame->IsBlockFrameOrSubclass(), "Not a block frame?")do { if (!(aBlockFrame->IsBlockFrameOrSubclass())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Not a block frame?", "aBlockFrame->IsBlockFrameOrSubclass()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8049); MOZ_PretendNoReturn (); } } while (0); |
| 8050 | return aBlockFrame->HasAnyStateBits(NS_BLOCK_HAS_FIRST_LETTER_STYLE); |
| 8051 | } |
| 8052 | |
| 8053 | bool nsCSSFrameConstructor::ShouldHaveFirstLineStyle( |
| 8054 | nsIContent* aContent, ComputedStyle* aComputedStyle) { |
| 8055 | bool hasFirstLine = nsLayoutUtils::HasPseudoStyle( |
| 8056 | aContent, aComputedStyle, PseudoStyleType::FirstLine, |
| 8057 | mPresShell->GetPresContext()); |
| 8058 | return hasFirstLine && |
| 8059 | !aContent->IsAnyOfHTMLElements(nsGkAtoms::fieldset, nsGkAtoms::input, |
| 8060 | nsGkAtoms::textarea); |
| 8061 | } |
| 8062 | |
| 8063 | void nsCSSFrameConstructor::ShouldHaveSpecialBlockStyle( |
| 8064 | nsIContent* aContent, ComputedStyle* aComputedStyle, |
| 8065 | bool* aHaveFirstLetterStyle, bool* aHaveFirstLineStyle) { |
| 8066 | *aHaveFirstLetterStyle = ShouldHaveFirstLetterStyle(aContent, aComputedStyle); |
| 8067 | *aHaveFirstLineStyle = ShouldHaveFirstLineStyle(aContent, aComputedStyle); |
| 8068 | } |
| 8069 | |
| 8070 | /* static */ |
| 8071 | const nsCSSFrameConstructor::PseudoParentData |
| 8072 | nsCSSFrameConstructor::sPseudoParentData[eParentTypeCount] = { |
| 8073 | // Cell |
| 8074 | {{&nsCSSFrameConstructor::ConstructTableCell, |
| 8075 | FCDATA_IS_TABLE_PART0x800 | FCDATA_SKIP_FRAMESET0x1 | FCDATA_USE_CHILD_ITEMS0x10000 | |
| 8076 | FCDATA_IS_WRAPPER_ANON_BOX0x400000 | |
| 8077 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeRow)(((uint32_t)(eTypeRow)) << 28)}, |
| 8078 | PseudoStyleType::MozTableCell}, |
| 8079 | // Row |
| 8080 | {{&nsCSSFrameConstructor::ConstructTableRowOrRowGroup, |
| 8081 | FCDATA_IS_TABLE_PART0x800 | FCDATA_SKIP_FRAMESET0x1 | FCDATA_USE_CHILD_ITEMS0x10000 | |
| 8082 | FCDATA_IS_WRAPPER_ANON_BOX0x400000 | |
| 8083 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeRowGroup)(((uint32_t)(eTypeRowGroup)) << 28)}, |
| 8084 | PseudoStyleType::MozTableRow}, |
| 8085 | // Row group |
| 8086 | {{&nsCSSFrameConstructor::ConstructTableRowOrRowGroup, |
| 8087 | FCDATA_IS_TABLE_PART0x800 | FCDATA_SKIP_FRAMESET0x1 | FCDATA_USE_CHILD_ITEMS0x10000 | |
| 8088 | FCDATA_IS_WRAPPER_ANON_BOX0x400000 | |
| 8089 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeTable)(((uint32_t)(eTypeTable)) << 28)}, |
| 8090 | PseudoStyleType::MozTableRowGroup}, |
| 8091 | // Column group |
| 8092 | {{ToCreationFunc(NS_NewTableColGroupFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewTableColGroupFrame(aPs, aStyle); }, |
| 8093 | FCDATA_IS_TABLE_PART0x800 | FCDATA_SKIP_FRAMESET0x1 | |
| 8094 | FCDATA_DISALLOW_OUT_OF_FLOW0x8 | FCDATA_USE_CHILD_ITEMS0x10000 | |
| 8095 | FCDATA_SKIP_ABSPOS_PUSH0x200 | |
| 8096 | // Not FCDATA_IS_WRAPPER_ANON_BOX, because we don't need to |
| 8097 | // restyle these: they have non-inheriting styles. |
| 8098 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeTable)(((uint32_t)(eTypeTable)) << 28)}, |
| 8099 | PseudoStyleType::MozTableColumnGroup}, |
| 8100 | // Table |
| 8101 | {{&nsCSSFrameConstructor::ConstructTable, |
| 8102 | FCDATA_SKIP_FRAMESET0x1 | FCDATA_USE_CHILD_ITEMS0x10000 | |
| 8103 | FCDATA_IS_WRAPPER_ANON_BOX0x400000}, |
| 8104 | PseudoStyleType::MozTable}, |
| 8105 | // Ruby |
| 8106 | {{ToCreationFunc(NS_NewRubyFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewRubyFrame(aPs, aStyle); }, |
| 8107 | FCDATA_IS_LINE_PARTICIPANT0x2000 | FCDATA_USE_CHILD_ITEMS0x10000 | |
| 8108 | FCDATA_IS_WRAPPER_ANON_BOX0x400000 | FCDATA_SKIP_FRAMESET0x1}, |
| 8109 | PseudoStyleType::MozRuby}, |
| 8110 | // Ruby Base |
| 8111 | {{ToCreationFunc(NS_NewRubyBaseFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewRubyBaseFrame(aPs, aStyle); }, |
| 8112 | FCDATA_USE_CHILD_ITEMS0x10000 | FCDATA_IS_LINE_PARTICIPANT0x2000 | |
| 8113 | FCDATA_IS_WRAPPER_ANON_BOX0x400000 | |
| 8114 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeRubyBaseContainer)(((uint32_t)(eTypeRubyBaseContainer)) << 28) | |
| 8115 | FCDATA_SKIP_FRAMESET0x1}, |
| 8116 | PseudoStyleType::MozRubyBase}, |
| 8117 | // Ruby Base Container |
| 8118 | {{ToCreationFunc(NS_NewRubyBaseContainerFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewRubyBaseContainerFrame(aPs, aStyle); }, |
| 8119 | FCDATA_USE_CHILD_ITEMS0x10000 | FCDATA_IS_LINE_PARTICIPANT0x2000 | |
| 8120 | FCDATA_IS_WRAPPER_ANON_BOX0x400000 | |
| 8121 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeRuby)(((uint32_t)(eTypeRuby)) << 28) | |
| 8122 | FCDATA_SKIP_FRAMESET0x1}, |
| 8123 | PseudoStyleType::MozRubyBaseContainer}, |
| 8124 | // Ruby Text |
| 8125 | {{ToCreationFunc(NS_NewRubyTextFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewRubyTextFrame(aPs, aStyle); }, |
| 8126 | FCDATA_USE_CHILD_ITEMS0x10000 | FCDATA_IS_LINE_PARTICIPANT0x2000 | |
| 8127 | FCDATA_IS_WRAPPER_ANON_BOX0x400000 | |
| 8128 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeRubyTextContainer)(((uint32_t)(eTypeRubyTextContainer)) << 28) | |
| 8129 | FCDATA_SKIP_FRAMESET0x1}, |
| 8130 | PseudoStyleType::MozRubyText}, |
| 8131 | // Ruby Text Container |
| 8132 | {{ToCreationFunc(NS_NewRubyTextContainerFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewRubyTextContainerFrame(aPs, aStyle); }, |
| 8133 | FCDATA_USE_CHILD_ITEMS0x10000 | FCDATA_IS_WRAPPER_ANON_BOX0x400000 | |
| 8134 | FCDATA_DESIRED_PARENT_TYPE_TO_BITS(eTypeRuby)(((uint32_t)(eTypeRuby)) << 28) | |
| 8135 | FCDATA_SKIP_FRAMESET0x1}, |
| 8136 | PseudoStyleType::MozRubyTextContainer}}; |
| 8137 | |
| 8138 | void nsCSSFrameConstructor::CreateNeededAnonFlexOrGridItems( |
| 8139 | nsFrameConstructorState& aState, FrameConstructionItemList& aItems, |
| 8140 | nsIFrame* aParentFrame) { |
| 8141 | if (aItems.IsEmpty()) { |
| 8142 | return; |
| 8143 | } |
| 8144 | |
| 8145 | if (!aParentFrame->IsFlexOrGridContainer()) { |
| 8146 | return; |
| 8147 | } |
| 8148 | |
| 8149 | const bool isLegacyWebKitBox = |
| 8150 | IsFlexContainerForLegacyWebKitBox(aParentFrame); |
| 8151 | FCItemIterator iter(aItems); |
| 8152 | do { |
| 8153 | // Advance iter past children that don't want to be wrapped |
| 8154 | if (iter.SkipItemsThatDontNeedAnonFlexOrGridItem(aState, |
| 8155 | isLegacyWebKitBox)) { |
| 8156 | // Hit the end of the items without finding any remaining children that |
| 8157 | // need to be wrapped. We're finished! |
| 8158 | return; |
| 8159 | } |
| 8160 | |
| 8161 | // If our next potentially-wrappable child is whitespace, then see if |
| 8162 | // there's anything wrappable immediately after it. If not, we just drop |
| 8163 | // the whitespace and move on. (We're not supposed to create any anonymous |
| 8164 | // flex/grid items that _only_ contain whitespace). |
| 8165 | // (BUT if this is generated content, then we don't give whitespace nodes |
| 8166 | // any special treatment, because they're probably not really whitespace -- |
| 8167 | // they're just temporarily empty, waiting for their generated text.) |
| 8168 | // XXXdholbert If this node's generated text will *actually end up being |
| 8169 | // entirely whitespace*, then we technically should still skip over it, per |
| 8170 | // the CSS grid & flexbox specs. I'm not bothering with that at this point, |
| 8171 | // since it's a pretty extreme edge case. |
| 8172 | if (!aParentFrame->IsGeneratedContentFrame() && |
| 8173 | iter.item().IsWhitespace(aState)) { |
| 8174 | FCItemIterator afterWhitespaceIter(iter); |
| 8175 | bool hitEnd = afterWhitespaceIter.SkipWhitespace(aState); |
| 8176 | bool nextChildNeedsAnonItem = |
| 8177 | !hitEnd && afterWhitespaceIter.item().NeedsAnonFlexOrGridItem( |
| 8178 | aState, isLegacyWebKitBox); |
| 8179 | |
| 8180 | if (!nextChildNeedsAnonItem) { |
| 8181 | // There's nothing after the whitespace that we need to wrap, so we |
| 8182 | // just drop this run of whitespace. |
| 8183 | iter.DeleteItemsTo(this, afterWhitespaceIter); |
| 8184 | if (hitEnd) { |
| 8185 | // Nothing left to do -- we're finished! |
| 8186 | return; |
| 8187 | } |
| 8188 | // else, we have a next child and it does not want to be wrapped. So, |
| 8189 | // we jump back to the beginning of the loop to skip over that child |
| 8190 | // (and anything else non-wrappable after it) |
| 8191 | MOZ_ASSERT(!iter.IsDone() && !iter.item().NeedsAnonFlexOrGridItem(do { static_assert( mozilla::detail::AssertionConditionType< decltype(!iter.IsDone() && !iter.item().NeedsAnonFlexOrGridItem ( aState, isLegacyWebKitBox))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!iter.IsDone() && !iter .item().NeedsAnonFlexOrGridItem( aState, isLegacyWebKitBox))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!iter.IsDone() && !iter.item().NeedsAnonFlexOrGridItem( aState, isLegacyWebKitBox)" " (" "hitEnd and/or nextChildNeedsAnonItem lied" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8193); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!iter.IsDone() && !iter.item().NeedsAnonFlexOrGridItem( aState, isLegacyWebKitBox)" ") (" "hitEnd and/or nextChildNeedsAnonItem lied" ")"); do { MOZ_CrashSequence(__null, 8193); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 8192 | aState, isLegacyWebKitBox),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!iter.IsDone() && !iter.item().NeedsAnonFlexOrGridItem ( aState, isLegacyWebKitBox))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!iter.IsDone() && !iter .item().NeedsAnonFlexOrGridItem( aState, isLegacyWebKitBox))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!iter.IsDone() && !iter.item().NeedsAnonFlexOrGridItem( aState, isLegacyWebKitBox)" " (" "hitEnd and/or nextChildNeedsAnonItem lied" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8193); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!iter.IsDone() && !iter.item().NeedsAnonFlexOrGridItem( aState, isLegacyWebKitBox)" ") (" "hitEnd and/or nextChildNeedsAnonItem lied" ")"); do { MOZ_CrashSequence(__null, 8193); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 8193 | "hitEnd and/or nextChildNeedsAnonItem lied")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!iter.IsDone() && !iter.item().NeedsAnonFlexOrGridItem ( aState, isLegacyWebKitBox))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!iter.IsDone() && !iter .item().NeedsAnonFlexOrGridItem( aState, isLegacyWebKitBox))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!iter.IsDone() && !iter.item().NeedsAnonFlexOrGridItem( aState, isLegacyWebKitBox)" " (" "hitEnd and/or nextChildNeedsAnonItem lied" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8193); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!iter.IsDone() && !iter.item().NeedsAnonFlexOrGridItem( aState, isLegacyWebKitBox)" ") (" "hitEnd and/or nextChildNeedsAnonItem lied" ")"); do { MOZ_CrashSequence(__null, 8193); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 8194 | continue; |
| 8195 | } |
| 8196 | } |
| 8197 | |
| 8198 | // Now |iter| points to the first child that needs to be wrapped in an |
| 8199 | // anonymous flex/grid item. Now we see how many children after it also want |
| 8200 | // to be wrapped in an anonymous flex/grid item. |
| 8201 | FCItemIterator endIter(iter); // iterator to find the end of the group |
| 8202 | endIter.SkipItemsThatNeedAnonFlexOrGridItem(aState, isLegacyWebKitBox); |
| 8203 | |
| 8204 | NS_ASSERTION(iter != endIter,do { if (!(iter != endIter)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Should've had at least one wrappable child to seek past", "iter != endIter" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8205); MOZ_PretendNoReturn (); } } while (0) |
| 8205 | "Should've had at least one wrappable child to seek past")do { if (!(iter != endIter)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Should've had at least one wrappable child to seek past", "iter != endIter" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8205); MOZ_PretendNoReturn (); } } while (0); |
| 8206 | |
| 8207 | // Now, we create the anonymous flex or grid item to contain the children |
| 8208 | // between |iter| and |endIter|. |
| 8209 | nsIContent* parentContent = aParentFrame->GetContent(); |
| 8210 | RefPtr<ComputedStyle> wrapperStyle = |
| 8211 | mPresShell->StyleSet()->ResolveInheritingAnonymousBoxStyle( |
| 8212 | PseudoStyleType::MozAnonymousItem, aParentFrame->Style()); |
| 8213 | |
| 8214 | static constexpr FrameConstructionData sBlockFCData( |
| 8215 | ToCreationFunc(NS_NewBlockFrame)[](PresShell* aPs, ComputedStyle* aStyle) -> nsIFrame* { return NS_NewBlockFrame(aPs, aStyle); }, FCDATA_SKIP_FRAMESET0x1 | |
| 8216 | FCDATA_USE_CHILD_ITEMS0x10000 | |
| 8217 | FCDATA_IS_WRAPPER_ANON_BOX0x400000); |
| 8218 | |
| 8219 | // Use the content of our parent frame |
| 8220 | auto* newItem = new (this) FrameConstructionItem( |
| 8221 | &sBlockFCData, parentContent, wrapperStyle.forget(), true); |
| 8222 | |
| 8223 | newItem->mIsAllInline = |
| 8224 | newItem->mComputedStyle->StyleDisplay()->IsInlineOutsideStyle(); |
| 8225 | newItem->mIsBlock = !newItem->mIsAllInline; |
| 8226 | |
| 8227 | MOZ_ASSERT(!newItem->mIsAllInline && newItem->mIsBlock,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!newItem->mIsAllInline && newItem->mIsBlock )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!newItem->mIsAllInline && newItem->mIsBlock ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!newItem->mIsAllInline && newItem->mIsBlock" " (" "expecting anonymous flex/grid items to be block-level " "(this will make a difference when we encounter " "'align-items: baseline')" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8230); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!newItem->mIsAllInline && newItem->mIsBlock" ") (" "expecting anonymous flex/grid items to be block-level " "(this will make a difference when we encounter " "'align-items: baseline')" ")"); do { MOZ_CrashSequence(__null, 8230); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 8228 | "expecting anonymous flex/grid items to be block-level "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!newItem->mIsAllInline && newItem->mIsBlock )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!newItem->mIsAllInline && newItem->mIsBlock ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!newItem->mIsAllInline && newItem->mIsBlock" " (" "expecting anonymous flex/grid items to be block-level " "(this will make a difference when we encounter " "'align-items: baseline')" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8230); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!newItem->mIsAllInline && newItem->mIsBlock" ") (" "expecting anonymous flex/grid items to be block-level " "(this will make a difference when we encounter " "'align-items: baseline')" ")"); do { MOZ_CrashSequence(__null, 8230); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 8229 | "(this will make a difference when we encounter "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!newItem->mIsAllInline && newItem->mIsBlock )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!newItem->mIsAllInline && newItem->mIsBlock ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!newItem->mIsAllInline && newItem->mIsBlock" " (" "expecting anonymous flex/grid items to be block-level " "(this will make a difference when we encounter " "'align-items: baseline')" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8230); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!newItem->mIsAllInline && newItem->mIsBlock" ") (" "expecting anonymous flex/grid items to be block-level " "(this will make a difference when we encounter " "'align-items: baseline')" ")"); do { MOZ_CrashSequence(__null, 8230); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 8230 | "'align-items: baseline')")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!newItem->mIsAllInline && newItem->mIsBlock )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!newItem->mIsAllInline && newItem->mIsBlock ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!newItem->mIsAllInline && newItem->mIsBlock" " (" "expecting anonymous flex/grid items to be block-level " "(this will make a difference when we encounter " "'align-items: baseline')" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8230); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!newItem->mIsAllInline && newItem->mIsBlock" ") (" "expecting anonymous flex/grid items to be block-level " "(this will make a difference when we encounter " "'align-items: baseline')" ")"); do { MOZ_CrashSequence(__null, 8230); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8231 | |
| 8232 | // Anonymous flex and grid items induce line boundaries around their |
| 8233 | // contents. |
| 8234 | newItem->mChildItems.SetLineBoundaryAtStart(true); |
| 8235 | newItem->mChildItems.SetLineBoundaryAtEnd(true); |
| 8236 | // The parent of the items in aItems is also the parent of the items |
| 8237 | // in mChildItems |
| 8238 | newItem->mChildItems.SetParentHasNoShadowDOM(aItems.ParentHasNoShadowDOM()); |
| 8239 | |
| 8240 | // Eat up all items between |iter| and |endIter| and put them in our |
| 8241 | // wrapper. This advances |iter| to point to |endIter|. |
| 8242 | iter.AppendItemsToList(this, endIter, newItem->mChildItems); |
| 8243 | |
| 8244 | iter.InsertItem(newItem); |
| 8245 | } while (!iter.IsDone()); |
| 8246 | } |
| 8247 | |
| 8248 | /* static */ nsCSSFrameConstructor::RubyWhitespaceType |
| 8249 | nsCSSFrameConstructor::ComputeRubyWhitespaceType(StyleDisplay aPrevDisplay, |
| 8250 | StyleDisplay aNextDisplay) { |
| 8251 | MOZ_ASSERT(aPrevDisplay.IsRuby() && aNextDisplay.IsRuby())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPrevDisplay.IsRuby() && aNextDisplay.IsRuby ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aPrevDisplay.IsRuby() && aNextDisplay.IsRuby ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aPrevDisplay.IsRuby() && aNextDisplay.IsRuby()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8251); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPrevDisplay.IsRuby() && aNextDisplay.IsRuby()" ")"); do { MOZ_CrashSequence(__null, 8251); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8252 | if (aPrevDisplay == aNextDisplay && |
| 8253 | (aPrevDisplay == StyleDisplay::RubyBase || |
| 8254 | aPrevDisplay == StyleDisplay::RubyText)) { |
| 8255 | return eRubyInterLeafWhitespace; |
| 8256 | } |
| 8257 | if (aNextDisplay == StyleDisplay::RubyText || |
| 8258 | aNextDisplay == StyleDisplay::RubyTextContainer) { |
| 8259 | return eRubyInterLevelWhitespace; |
| 8260 | } |
| 8261 | return eRubyInterSegmentWhitespace; |
| 8262 | } |
| 8263 | |
| 8264 | /** |
| 8265 | * This function checks the content from |aStartIter| to |aEndIter|, |
| 8266 | * determines whether it contains only whitespace, and if yes, |
| 8267 | * interprets the type of whitespace. This method does not change |
| 8268 | * any of the iters. |
| 8269 | */ |
| 8270 | /* static */ nsCSSFrameConstructor::RubyWhitespaceType |
| 8271 | nsCSSFrameConstructor::InterpretRubyWhitespace(nsFrameConstructorState& aState, |
| 8272 | const FCItemIterator& aStartIter, |
| 8273 | const FCItemIterator& aEndIter) { |
| 8274 | if (!aStartIter.item().IsWhitespace(aState)) { |
| 8275 | return eRubyNotWhitespace; |
| 8276 | } |
| 8277 | |
| 8278 | FCItemIterator spaceEndIter(aStartIter); |
| 8279 | spaceEndIter.SkipWhitespace(aState); |
| 8280 | if (spaceEndIter != aEndIter) { |
| 8281 | return eRubyNotWhitespace; |
| 8282 | } |
| 8283 | |
| 8284 | // Any leading or trailing whitespace in non-pseudo ruby box |
| 8285 | // should have been trimmed, hence there should not be any |
| 8286 | // whitespace at the start or the end. |
| 8287 | MOZ_ASSERT(!aStartIter.AtStart() && !aEndIter.IsDone())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aStartIter.AtStart() && !aEndIter.IsDone()) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aStartIter.AtStart() && !aEndIter.IsDone()) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aStartIter.AtStart() && !aEndIter.IsDone()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8287); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!aStartIter.AtStart() && !aEndIter.IsDone()" ")"); do { MOZ_CrashSequence(__null, 8287); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8288 | FCItemIterator prevIter(aStartIter); |
| 8289 | prevIter.Prev(); |
| 8290 | return ComputeRubyWhitespaceType( |
| 8291 | prevIter.item().mComputedStyle->StyleDisplay()->mDisplay, |
| 8292 | aEndIter.item().mComputedStyle->StyleDisplay()->mDisplay); |
| 8293 | } |
| 8294 | |
| 8295 | /** |
| 8296 | * This function eats up consecutive items which do not want the current |
| 8297 | * parent into either a ruby base box or a ruby text box. When it |
| 8298 | * returns, |aIter| points to the first item it doesn't wrap. |
| 8299 | */ |
| 8300 | void nsCSSFrameConstructor::WrapItemsInPseudoRubyLeafBox( |
| 8301 | FCItemIterator& aIter, ComputedStyle* aParentStyle, |
| 8302 | nsIContent* aParentContent) { |
| 8303 | StyleDisplay parentDisplay = aParentStyle->StyleDisplay()->mDisplay; |
| 8304 | ParentType parentType, wrapperType; |
| 8305 | if (parentDisplay == StyleDisplay::RubyTextContainer) { |
| 8306 | parentType = eTypeRubyTextContainer; |
| 8307 | wrapperType = eTypeRubyText; |
| 8308 | } else { |
| 8309 | MOZ_ASSERT(parentDisplay == StyleDisplay::RubyBaseContainer)do { static_assert( mozilla::detail::AssertionConditionType< decltype(parentDisplay == StyleDisplay::RubyBaseContainer)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(parentDisplay == StyleDisplay::RubyBaseContainer))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("parentDisplay == StyleDisplay::RubyBaseContainer" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8309); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "parentDisplay == StyleDisplay::RubyBaseContainer" ")"); do { MOZ_CrashSequence(__null, 8309); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8310 | parentType = eTypeRubyBaseContainer; |
| 8311 | wrapperType = eTypeRubyBase; |
| 8312 | } |
| 8313 | |
| 8314 | MOZ_ASSERT(aIter.item().DesiredParentType() != parentType,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aIter.item().DesiredParentType() != parentType)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aIter.item().DesiredParentType() != parentType))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aIter.item().DesiredParentType() != parentType" " (" "Should point to something needs to be wrapped." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8315); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aIter.item().DesiredParentType() != parentType" ") (" "Should point to something needs to be wrapped." ")"); do { MOZ_CrashSequence(__null, 8315); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 8315 | "Should point to something needs to be wrapped.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aIter.item().DesiredParentType() != parentType)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aIter.item().DesiredParentType() != parentType))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aIter.item().DesiredParentType() != parentType" " (" "Should point to something needs to be wrapped." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8315); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aIter.item().DesiredParentType() != parentType" ") (" "Should point to something needs to be wrapped." ")"); do { MOZ_CrashSequence(__null, 8315); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8316 | |
| 8317 | FCItemIterator endIter(aIter); |
| 8318 | endIter.SkipItemsNotWantingParentType(parentType); |
| 8319 | |
| 8320 | WrapItemsInPseudoParent(aParentContent, aParentStyle, wrapperType, aIter, |
| 8321 | endIter); |
| 8322 | } |
| 8323 | |
| 8324 | /** |
| 8325 | * This function eats up consecutive items into a ruby level container. |
| 8326 | * It may create zero or one level container. When it returns, |aIter| |
| 8327 | * points to the first item it doesn't wrap. |
| 8328 | */ |
| 8329 | void nsCSSFrameConstructor::WrapItemsInPseudoRubyLevelContainer( |
| 8330 | nsFrameConstructorState& aState, FCItemIterator& aIter, |
| 8331 | ComputedStyle* aParentStyle, nsIContent* aParentContent) { |
| 8332 | MOZ_ASSERT(aIter.item().DesiredParentType() != eTypeRuby,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aIter.item().DesiredParentType() != eTypeRuby)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aIter.item().DesiredParentType() != eTypeRuby))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("aIter.item().DesiredParentType() != eTypeRuby" " (" "Pointing to a level container?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8333); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aIter.item().DesiredParentType() != eTypeRuby" ") (" "Pointing to a level container?" ")"); do { MOZ_CrashSequence (__null, 8333); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 8333 | "Pointing to a level container?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aIter.item().DesiredParentType() != eTypeRuby)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aIter.item().DesiredParentType() != eTypeRuby))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("aIter.item().DesiredParentType() != eTypeRuby" " (" "Pointing to a level container?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8333); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aIter.item().DesiredParentType() != eTypeRuby" ") (" "Pointing to a level container?" ")"); do { MOZ_CrashSequence (__null, 8333); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 8334 | |
| 8335 | FrameConstructionItem& firstItem = aIter.item(); |
| 8336 | ParentType wrapperType = firstItem.DesiredParentType(); |
| 8337 | if (wrapperType != eTypeRubyTextContainer) { |
| 8338 | // If the first item is not ruby text, |
| 8339 | // it should be in a base container. |
| 8340 | wrapperType = eTypeRubyBaseContainer; |
| 8341 | } |
| 8342 | |
| 8343 | FCItemIterator endIter(aIter); |
| 8344 | do { |
| 8345 | if (endIter.SkipItemsWantingParentType(wrapperType) || |
| 8346 | // If the skipping above stops at some item which wants a |
| 8347 | // different ruby parent, then we have finished. |
| 8348 | IsRubyParentType(endIter.item().DesiredParentType())) { |
| 8349 | // No more items need to be wrapped in this level container. |
| 8350 | break; |
| 8351 | } |
| 8352 | |
| 8353 | FCItemIterator contentEndIter(endIter); |
| 8354 | contentEndIter.SkipItemsNotWantingRubyParent(); |
| 8355 | // endIter must be on something doesn't want a ruby parent. |
| 8356 | MOZ_ASSERT(contentEndIter != endIter)do { static_assert( mozilla::detail::AssertionConditionType< decltype(contentEndIter != endIter)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(contentEndIter != endIter))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("contentEndIter != endIter" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8356); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "contentEndIter != endIter" ")"); do { MOZ_CrashSequence (__null, 8356); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 8357 | |
| 8358 | // InterpretRubyWhitespace depends on the fact that any leading or |
| 8359 | // trailing whitespace described in the spec have been trimmed at |
| 8360 | // this point. With this precondition, it is safe not to check |
| 8361 | // whether contentEndIter has been done. |
| 8362 | RubyWhitespaceType whitespaceType = |
| 8363 | InterpretRubyWhitespace(aState, endIter, contentEndIter); |
| 8364 | if (whitespaceType == eRubyInterLevelWhitespace) { |
| 8365 | // Remove inter-level whitespace. |
| 8366 | bool atStart = (aIter == endIter); |
| 8367 | endIter.DeleteItemsTo(this, contentEndIter); |
| 8368 | if (atStart) { |
| 8369 | aIter = endIter; |
| 8370 | } |
| 8371 | } else if (whitespaceType == eRubyInterSegmentWhitespace) { |
| 8372 | // If this level container starts with inter-segment whitespaces, |
| 8373 | // wrap them. Break at contentEndIter. Otherwise, leave it here. |
| 8374 | // Break at endIter. They will be wrapped when we are here again. |
| 8375 | if (aIter == endIter) { |
| 8376 | MOZ_ASSERT(wrapperType == eTypeRubyBaseContainer,do { static_assert( mozilla::detail::AssertionConditionType< decltype(wrapperType == eTypeRubyBaseContainer)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(wrapperType == eTypeRubyBaseContainer))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("wrapperType == eTypeRubyBaseContainer" " (" "Inter-segment whitespace should be wrapped in rbc" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8377); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "wrapperType == eTypeRubyBaseContainer" ") (" "Inter-segment whitespace should be wrapped in rbc" ")"); do { MOZ_CrashSequence(__null, 8377); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 8377 | "Inter-segment whitespace should be wrapped in rbc")do { static_assert( mozilla::detail::AssertionConditionType< decltype(wrapperType == eTypeRubyBaseContainer)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(wrapperType == eTypeRubyBaseContainer))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("wrapperType == eTypeRubyBaseContainer" " (" "Inter-segment whitespace should be wrapped in rbc" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8377); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "wrapperType == eTypeRubyBaseContainer" ") (" "Inter-segment whitespace should be wrapped in rbc" ")"); do { MOZ_CrashSequence(__null, 8377); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 8378 | endIter = contentEndIter; |
| 8379 | } |
| 8380 | break; |
| 8381 | } else if (wrapperType == eTypeRubyTextContainer && |
| 8382 | whitespaceType != eRubyInterLeafWhitespace) { |
| 8383 | // Misparented inline content that's not inter-annotation |
| 8384 | // whitespace doesn't belong in a pseudo ruby text container. |
| 8385 | // Break at endIter. |
| 8386 | break; |
| 8387 | } else { |
| 8388 | endIter = contentEndIter; |
| 8389 | } |
| 8390 | } while (!endIter.IsDone()); |
| 8391 | |
| 8392 | // It is possible that everything our parent wants us to wrap is |
| 8393 | // simply an inter-level whitespace, which has been trimmed, or |
| 8394 | // an inter-segment whitespace, which will be wrapped later. |
| 8395 | // In those cases, don't create anything. |
| 8396 | if (aIter != endIter) { |
| 8397 | WrapItemsInPseudoParent(aParentContent, aParentStyle, wrapperType, aIter, |
| 8398 | endIter); |
| 8399 | } |
| 8400 | } |
| 8401 | |
| 8402 | /** |
| 8403 | * This function trims leading and trailing whitespaces |
| 8404 | * in the given item list. |
| 8405 | */ |
| 8406 | void nsCSSFrameConstructor::TrimLeadingAndTrailingWhitespaces( |
| 8407 | nsFrameConstructorState& aState, FrameConstructionItemList& aItems) { |
| 8408 | FCItemIterator iter(aItems); |
| 8409 | if (!iter.IsDone() && iter.item().IsWhitespace(aState)) { |
| 8410 | FCItemIterator spaceEndIter(iter); |
| 8411 | spaceEndIter.SkipWhitespace(aState); |
| 8412 | iter.DeleteItemsTo(this, spaceEndIter); |
| 8413 | } |
| 8414 | |
| 8415 | iter.SetToEnd(); |
| 8416 | if (!iter.AtStart()) { |
| 8417 | FCItemIterator spaceEndIter(iter); |
| 8418 | do { |
| 8419 | iter.Prev(); |
| 8420 | if (iter.AtStart()) { |
| 8421 | // It's fine to not check the first item, because we |
| 8422 | // should have trimmed leading whitespaces above. |
| 8423 | break; |
| 8424 | } |
| 8425 | } while (iter.item().IsWhitespace(aState)); |
| 8426 | iter.Next(); |
| 8427 | if (iter != spaceEndIter) { |
| 8428 | iter.DeleteItemsTo(this, spaceEndIter); |
| 8429 | } |
| 8430 | } |
| 8431 | } |
| 8432 | |
| 8433 | /** |
| 8434 | * This function walks through the child list (aItems) and creates |
| 8435 | * needed pseudo ruby boxes to wrap misparented children. |
| 8436 | */ |
| 8437 | void nsCSSFrameConstructor::CreateNeededPseudoInternalRubyBoxes( |
| 8438 | nsFrameConstructorState& aState, FrameConstructionItemList& aItems, |
| 8439 | nsIFrame* aParentFrame) { |
| 8440 | const ParentType ourParentType = GetParentType(aParentFrame); |
| 8441 | if (!IsRubyParentType(ourParentType) || |
| 8442 | aItems.AllWantParentType(ourParentType)) { |
| 8443 | return; |
| 8444 | } |
| 8445 | |
| 8446 | if (!IsRubyPseudo(aParentFrame) || |
| 8447 | ourParentType == eTypeRuby /* for 'display:block ruby' */) { |
| 8448 | // Normally, ruby pseudo frames start from and end at some elements, |
| 8449 | // which means they don't have leading and trailing whitespaces at |
| 8450 | // all. But there are two cases where they do actually have leading |
| 8451 | // or trailing whitespaces: |
| 8452 | // 1. It is an inter-segment whitespace which in an individual ruby |
| 8453 | // base container. |
| 8454 | // 2. The pseudo frame starts from or ends at consecutive inline |
| 8455 | // content, which is not pure whitespace, but includes some. |
| 8456 | // In either case, the whitespaces are not the leading or trailing |
| 8457 | // whitespaces defined in the spec, and thus should not be trimmed. |
| 8458 | TrimLeadingAndTrailingWhitespaces(aState, aItems); |
| 8459 | } |
| 8460 | |
| 8461 | FCItemIterator iter(aItems); |
| 8462 | nsIContent* parentContent = aParentFrame->GetContent(); |
| 8463 | ComputedStyle* parentStyle = aParentFrame->Style(); |
| 8464 | while (!iter.IsDone()) { |
| 8465 | if (!iter.SkipItemsWantingParentType(ourParentType)) { |
| 8466 | if (ourParentType == eTypeRuby) { |
| 8467 | WrapItemsInPseudoRubyLevelContainer(aState, iter, parentStyle, |
| 8468 | parentContent); |
| 8469 | } else { |
| 8470 | WrapItemsInPseudoRubyLeafBox(iter, parentStyle, parentContent); |
| 8471 | } |
| 8472 | } |
| 8473 | } |
| 8474 | } |
| 8475 | |
| 8476 | /* |
| 8477 | * This function works as follows: we walk through the child list (aItems) and |
| 8478 | * find items that cannot have aParentFrame as their parent. We wrap |
| 8479 | * continuous runs of such items into a FrameConstructionItem for a frame that |
| 8480 | * gets them closer to their desired parents. For example, a run of non-row |
| 8481 | * children of a row-group will get wrapped in a row. When we later construct |
| 8482 | * the frame for this wrapper (in this case for the row), it'll be the correct |
| 8483 | * parent for the cells in the set of items we wrapped or we'll wrap cells |
| 8484 | * around everything else. At the end of this method, aItems is guaranteed to |
| 8485 | * contain only items for frames that can be direct kids of aParentFrame. |
| 8486 | */ |
| 8487 | void nsCSSFrameConstructor::CreateNeededPseudoContainers( |
| 8488 | nsFrameConstructorState& aState, FrameConstructionItemList& aItems, |
| 8489 | nsIFrame* aParentFrame) { |
| 8490 | ParentType ourParentType = GetParentType(aParentFrame); |
| 8491 | if (IsRubyParentType(ourParentType) || |
| 8492 | aItems.AllWantParentType(ourParentType)) { |
| 8493 | // Nothing to do here |
| 8494 | return; |
| 8495 | } |
| 8496 | |
| 8497 | FCItemIterator iter(aItems); |
| 8498 | do { |
| 8499 | if (iter.SkipItemsWantingParentType(ourParentType)) { |
| 8500 | // Nothing else to do here; we're finished |
| 8501 | return; |
| 8502 | } |
| 8503 | |
| 8504 | // Now we're pointing to the first child that wants a different parent |
| 8505 | // type. |
| 8506 | |
| 8507 | // Now try to figure out what kids we can group together. We can generally |
| 8508 | // group everything that has a different desired parent type from us. Two |
| 8509 | // exceptions to this: |
| 8510 | // 1) If our parent type is table, we can't group columns with anything |
| 8511 | // else other than whitespace. |
| 8512 | // 2) Whitespace that lies between two things we can group which both want |
| 8513 | // a non-block parent should be dropped, even if we can't group them |
| 8514 | // with each other and even if the whitespace wants a parent of |
| 8515 | // ourParentType. Ends of the list count as things that don't want a |
| 8516 | // block parent (so that for example we'll drop a whitespace-only list). |
| 8517 | |
| 8518 | FCItemIterator endIter(iter); /* iterator to find the end of the group */ |
| 8519 | ParentType groupingParentType = endIter.item().DesiredParentType(); |
| 8520 | if (aItems.AllWantParentType(groupingParentType) && |
| 8521 | groupingParentType != eTypeBlock) { |
| 8522 | // Just group them all and be done with it. We need the check for |
| 8523 | // eTypeBlock here to catch the "all the items are whitespace" case |
| 8524 | // described above. |
| 8525 | endIter.SetToEnd(); |
| 8526 | } else { |
| 8527 | // Locate the end of the group. |
| 8528 | |
| 8529 | // Keep track of the type the previous item wanted, in case we have to |
| 8530 | // deal with whitespace. Start it off with ourParentType, since that's |
| 8531 | // the last thing |iter| would have skipped over. |
| 8532 | ParentType prevParentType = ourParentType; |
| 8533 | do { |
| 8534 | // Walk an iterator past any whitespace that we might be able to drop |
| 8535 | // from the list |
| 8536 | FCItemIterator spaceEndIter(endIter); |
| 8537 | if (prevParentType != eTypeBlock && |
| 8538 | !aParentFrame->IsGeneratedContentFrame() && |
| 8539 | spaceEndIter.item().IsWhitespace(aState)) { |
| 8540 | bool trailingSpaces = spaceEndIter.SkipWhitespace(aState); |
| 8541 | |
| 8542 | // We drop the whitespace in the following cases: |
| 8543 | // 1) If these are not trailing spaces and the next item wants a table |
| 8544 | // or table-part parent |
| 8545 | // 2) If these are trailing spaces and aParentFrame is a |
| 8546 | // tabular container according to rule 1.3 of CSS 2.1 Sec 17.2.1. |
| 8547 | // (Being a tabular container pretty much means ourParentType is |
| 8548 | // not eTypeBlock besides the eTypeColGroup case, which won't |
| 8549 | // reach here.) |
| 8550 | if ((!trailingSpaces && |
| 8551 | IsTableParentType(spaceEndIter.item().DesiredParentType())) || |
| 8552 | (trailingSpaces && ourParentType != eTypeBlock)) { |
| 8553 | bool updateStart = (iter == endIter); |
| 8554 | endIter.DeleteItemsTo(this, spaceEndIter); |
| 8555 | NS_ASSERTION(trailingSpaces == endIter.IsDone(),do { if (!(trailingSpaces == endIter.IsDone())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "These should match", "trailingSpaces == endIter.IsDone()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8556); MOZ_PretendNoReturn (); } } while (0) |
| 8556 | "These should match")do { if (!(trailingSpaces == endIter.IsDone())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "These should match", "trailingSpaces == endIter.IsDone()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8556); MOZ_PretendNoReturn (); } } while (0); |
| 8557 | |
| 8558 | if (updateStart) { |
| 8559 | iter = endIter; |
| 8560 | } |
| 8561 | |
| 8562 | if (trailingSpaces) { |
| 8563 | break; /* Found group end */ |
| 8564 | } |
| 8565 | |
| 8566 | if (updateStart) { |
| 8567 | // Update groupingParentType, since it might have been eTypeBlock |
| 8568 | // just because of the whitespace. |
| 8569 | groupingParentType = iter.item().DesiredParentType(); |
| 8570 | } |
| 8571 | } |
| 8572 | } |
| 8573 | |
| 8574 | // Now endIter points to a non-whitespace item or a non-droppable |
| 8575 | // whitespace item. In the latter case, if this is the end of the group |
| 8576 | // we'll traverse this whitespace again. But it'll all just be quick |
| 8577 | // DesiredParentType() checks which will match ourParentType (that's |
| 8578 | // what it means that this is the group end), so it's OK. |
| 8579 | // However, when we are grouping a ruby parent, and endIter points to |
| 8580 | // a non-droppable whitespace, if the next non-whitespace item also |
| 8581 | // wants a ruby parent, the whitespace should also be included into |
| 8582 | // the current ruby container. |
| 8583 | prevParentType = endIter.item().DesiredParentType(); |
| 8584 | if (prevParentType == ourParentType && |
| 8585 | (endIter == spaceEndIter || spaceEndIter.IsDone() || |
| 8586 | !IsRubyParentType(groupingParentType) || |
| 8587 | !IsRubyParentType(spaceEndIter.item().DesiredParentType()))) { |
| 8588 | // End the group at endIter. |
| 8589 | break; |
| 8590 | } |
| 8591 | |
| 8592 | if (ourParentType == eTypeTable && |
| 8593 | (prevParentType == eTypeColGroup) != |
| 8594 | (groupingParentType == eTypeColGroup)) { |
| 8595 | // Either we started with columns and now found something else, or |
| 8596 | // vice versa. In any case, end the grouping. |
| 8597 | break; |
| 8598 | } |
| 8599 | |
| 8600 | // If we have some whitespace that we were not able to drop and there is |
| 8601 | // an item after the whitespace that is already properly parented, then |
| 8602 | // make sure to include the spaces in our group but stop the group after |
| 8603 | // that. |
| 8604 | if (spaceEndIter != endIter && !spaceEndIter.IsDone() && |
| 8605 | ourParentType == spaceEndIter.item().DesiredParentType()) { |
| 8606 | endIter = spaceEndIter; |
| 8607 | break; |
| 8608 | } |
| 8609 | |
| 8610 | // Include the whitespace we didn't drop (if any) in the group. |
| 8611 | endIter = spaceEndIter; |
| 8612 | prevParentType = endIter.item().DesiredParentType(); |
| 8613 | |
| 8614 | endIter.Next(); |
| 8615 | } while (!endIter.IsDone()); |
| 8616 | } |
| 8617 | |
| 8618 | if (iter == endIter) { |
| 8619 | // Nothing to wrap here; just skipped some whitespace |
| 8620 | continue; |
| 8621 | } |
| 8622 | |
| 8623 | if (ourParentType == eTypeColGroup) { |
| 8624 | // Suppress non-col items of colgroups. |
| 8625 | iter.DeleteItemsTo(this, endIter); |
| 8626 | continue; |
| 8627 | } |
| 8628 | |
| 8629 | // Now group together all the items between iter and endIter. The right |
| 8630 | // parent type to use depends on ourParentType. |
| 8631 | ParentType wrapperType; |
| 8632 | switch (ourParentType) { |
| 8633 | case eTypeRow: |
| 8634 | // The parent type for a cell is eTypeBlock, since that's what a cell |
| 8635 | // looks like to its kids. |
| 8636 | wrapperType = eTypeBlock; |
| 8637 | break; |
| 8638 | case eTypeRowGroup: |
| 8639 | wrapperType = eTypeRow; |
| 8640 | break; |
| 8641 | case eTypeTable: |
| 8642 | // Either colgroup or rowgroup, depending on what we're grouping. |
| 8643 | wrapperType = |
| 8644 | groupingParentType == eTypeColGroup ? eTypeColGroup : eTypeRowGroup; |
| 8645 | break; |
| 8646 | case eTypeColGroup: |
| 8647 | MOZ_FALLTHROUGH_ASSERT("handled above")do { do { } while (false); MOZ_ReportCrash("" "MOZ_FALLTHROUGH_ASSERT: " "handled above", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8647); AnnotateMozCrashReason("MOZ_CRASH(" "MOZ_FALLTHROUGH_ASSERT: " "handled above" ")"); do { MOZ_CrashSequence(__null, 8647); __attribute__ ((nomerge)) ::abort(); } while (false); } while (false); |
| 8648 | default: |
| 8649 | NS_ASSERTION(ourParentType == eTypeBlock, "Unrecognized parent type")do { if (!(ourParentType == eTypeBlock)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Unrecognized parent type", "ourParentType == eTypeBlock", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8649); MOZ_PretendNoReturn(); } } while (0); |
| 8650 | if (IsRubyParentType(groupingParentType)) { |
| 8651 | wrapperType = eTypeRuby; |
| 8652 | } else { |
| 8653 | NS_ASSERTION(IsTableParentType(groupingParentType),do { if (!(IsTableParentType(groupingParentType))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "groupingParentType should be either Ruby or table" , "IsTableParentType(groupingParentType)", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8654); MOZ_PretendNoReturn(); } } while (0) |
| 8654 | "groupingParentType should be either Ruby or table")do { if (!(IsTableParentType(groupingParentType))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "groupingParentType should be either Ruby or table" , "IsTableParentType(groupingParentType)", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8654); MOZ_PretendNoReturn(); } } while (0); |
| 8655 | wrapperType = eTypeTable; |
| 8656 | } |
| 8657 | } |
| 8658 | |
| 8659 | ComputedStyle* parentStyle = aParentFrame->Style(); |
| 8660 | WrapItemsInPseudoParent(aParentFrame->GetContent(), parentStyle, |
| 8661 | wrapperType, iter, endIter); |
| 8662 | |
| 8663 | // Now |iter| points to the item that was the first one we didn't wrap; |
| 8664 | // loop and see whether we need to skip it or wrap it in something |
| 8665 | // different. |
| 8666 | } while (!iter.IsDone()); |
| 8667 | } |
| 8668 | |
| 8669 | /** |
| 8670 | * This method wraps frame construction item from |aIter| to |
| 8671 | * |aEndIter|. After it returns, aIter points to the first item |
| 8672 | * after the wrapper. |
| 8673 | */ |
| 8674 | void nsCSSFrameConstructor::WrapItemsInPseudoParent( |
| 8675 | nsIContent* aParentContent, ComputedStyle* aParentStyle, |
| 8676 | ParentType aWrapperType, FCItemIterator& aIter, |
| 8677 | const FCItemIterator& aEndIter) { |
| 8678 | const PseudoParentData& pseudoData = sPseudoParentData[aWrapperType]; |
| 8679 | PseudoStyleType pseudoType = pseudoData.mPseudoType; |
| 8680 | auto& parentDisplay = *aParentStyle->StyleDisplay(); |
| 8681 | auto parentDisplayInside = parentDisplay.DisplayInside(); |
| 8682 | |
| 8683 | // XXXmats should we use IsInlineInsideStyle() here instead? seems odd to |
| 8684 | // exclude RubyBaseContainer/RubyTextContainer... |
| 8685 | if (pseudoType == PseudoStyleType::MozTable && |
| 8686 | (parentDisplay.IsInlineFlow() || |
| 8687 | parentDisplayInside == StyleDisplayInside::RubyBase || |
| 8688 | parentDisplayInside == StyleDisplayInside::RubyText)) { |
| 8689 | pseudoType = PseudoStyleType::MozInlineTable; |
| 8690 | } |
| 8691 | |
| 8692 | RefPtr<ComputedStyle> wrapperStyle; |
| 8693 | if (pseudoData.mFCData.mBits & FCDATA_IS_WRAPPER_ANON_BOX0x400000) { |
| 8694 | wrapperStyle = mPresShell->StyleSet()->ResolveInheritingAnonymousBoxStyle( |
| 8695 | pseudoType, aParentStyle); |
| 8696 | } else { |
| 8697 | wrapperStyle = |
| 8698 | mPresShell->StyleSet()->ResolveNonInheritingAnonymousBoxStyle( |
| 8699 | pseudoType); |
| 8700 | } |
| 8701 | |
| 8702 | // Use the content of our parent frame |
| 8703 | auto* newItem = new (this) FrameConstructionItem( |
| 8704 | &pseudoData.mFCData, aParentContent, wrapperStyle.forget(), true); |
| 8705 | |
| 8706 | const nsStyleDisplay* disp = newItem->mComputedStyle->StyleDisplay(); |
| 8707 | // Here we're cheating a tad... technically, table-internal items should be |
| 8708 | // inline if aParentFrame is inline, but they'll get wrapped in an |
| 8709 | // inline-table in the end, so it'll all work out. In any case, arguably |
| 8710 | // we don't need to maintain this state at this point... but it's better |
| 8711 | // to, I guess. |
| 8712 | newItem->mIsAllInline = disp->IsInlineOutsideStyle(); |
| 8713 | |
| 8714 | bool isRuby = disp->IsRubyDisplayType(); |
| 8715 | if (!isRuby) { |
| 8716 | // Table pseudo frames always induce line boundaries around their |
| 8717 | // contents. |
| 8718 | newItem->mChildItems.SetLineBoundaryAtStart(true); |
| 8719 | newItem->mChildItems.SetLineBoundaryAtEnd(true); |
| 8720 | } |
| 8721 | // The parent of the items in aItems is also the parent of the items |
| 8722 | // in mChildItems |
| 8723 | newItem->mChildItems.SetParentHasNoShadowDOM( |
| 8724 | aIter.List()->ParentHasNoShadowDOM()); |
| 8725 | |
| 8726 | // Eat up all items between |aIter| and |aEndIter| and put them in our |
| 8727 | // wrapper Advances |aIter| to point to |aEndIter|. |
| 8728 | aIter.AppendItemsToList(this, aEndIter, newItem->mChildItems); |
| 8729 | |
| 8730 | aIter.InsertItem(newItem); |
| 8731 | } |
| 8732 | |
| 8733 | void nsCSSFrameConstructor::CreateNeededPseudoSiblings( |
| 8734 | nsFrameConstructorState& aState, FrameConstructionItemList& aItems, |
| 8735 | nsIFrame* aParentFrame) { |
| 8736 | if (aItems.IsEmpty() || GetParentType(aParentFrame) != eTypeRuby) { |
| 8737 | return; |
| 8738 | } |
| 8739 | |
| 8740 | FCItemIterator iter(aItems); |
| 8741 | StyleDisplay firstDisplay = |
| 8742 | iter.item().mComputedStyle->StyleDisplay()->mDisplay; |
| 8743 | if (firstDisplay == StyleDisplay::RubyBaseContainer) { |
| 8744 | return; |
| 8745 | } |
| 8746 | NS_ASSERTION(firstDisplay == StyleDisplay::RubyTextContainer,do { if (!(firstDisplay == StyleDisplay::RubyTextContainer)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Child of ruby frame should either a rbc or a rtc" , "firstDisplay == StyleDisplay::RubyTextContainer", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8747); MOZ_PretendNoReturn(); } } while (0) |
| 8747 | "Child of ruby frame should either a rbc or a rtc")do { if (!(firstDisplay == StyleDisplay::RubyTextContainer)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Child of ruby frame should either a rbc or a rtc" , "firstDisplay == StyleDisplay::RubyTextContainer", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8747); MOZ_PretendNoReturn(); } } while (0); |
| 8748 | |
| 8749 | const PseudoParentData& pseudoData = |
| 8750 | sPseudoParentData[eTypeRubyBaseContainer]; |
| 8751 | RefPtr<ComputedStyle> pseudoStyle = |
| 8752 | mPresShell->StyleSet()->ResolveInheritingAnonymousBoxStyle( |
| 8753 | pseudoData.mPseudoType, aParentFrame->Style()); |
| 8754 | FrameConstructionItem* newItem = new (this) FrameConstructionItem( |
| 8755 | &pseudoData.mFCData, |
| 8756 | // Use the content of the parent frame |
| 8757 | aParentFrame->GetContent(), pseudoStyle.forget(), true); |
| 8758 | newItem->mIsAllInline = true; |
| 8759 | newItem->mChildItems.SetParentHasNoShadowDOM(true); |
| 8760 | iter.InsertItem(newItem); |
| 8761 | } |
| 8762 | |
| 8763 | #ifdef DEBUG1 |
| 8764 | /** |
| 8765 | * Returns true iff aFrame should be wrapped in an anonymous flex/grid item, |
| 8766 | * rather than being a direct child of aContainerFrame. |
| 8767 | * |
| 8768 | * NOTE: aContainerFrame must be a flex or grid container - this function is |
| 8769 | * purely for sanity-checking the children of these container types. |
| 8770 | * NOTE: See also NeedsAnonFlexOrGridItem(), for the non-debug version of this |
| 8771 | * logic (which operates a bit earlier, on FCData instead of frames). |
| 8772 | */ |
| 8773 | static bool FrameWantsToBeInAnonymousItem(const nsIFrame* aContainerFrame, |
| 8774 | const nsIFrame* aFrame) { |
| 8775 | MOZ_ASSERT(aContainerFrame->IsFlexOrGridContainer())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContainerFrame->IsFlexOrGridContainer())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aContainerFrame->IsFlexOrGridContainer()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aContainerFrame->IsFlexOrGridContainer()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8775); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aContainerFrame->IsFlexOrGridContainer()" ")"); do { MOZ_CrashSequence(__null, 8775); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8776 | |
| 8777 | // Any line-participant frames (e.g. text) definitely want to be wrapped in |
| 8778 | // an anonymous flex/grid item. |
| 8779 | if (aFrame->IsLineParticipant()) { |
| 8780 | return true; |
| 8781 | } |
| 8782 | |
| 8783 | // If the container is a -webkit-{inline-}box container, then placeholders |
| 8784 | // also need to be wrapped, for compatibility. |
| 8785 | if (IsFlexContainerForLegacyWebKitBox(aContainerFrame) && |
| 8786 | aFrame->IsPlaceholderFrame()) { |
| 8787 | return true; |
| 8788 | } |
| 8789 | |
| 8790 | return false; |
| 8791 | } |
| 8792 | #endif |
| 8793 | |
| 8794 | static void VerifyGridFlexContainerChildren(nsIFrame* aParentFrame, |
| 8795 | const nsFrameList& aChildren) { |
| 8796 | #ifdef DEBUG1 |
| 8797 | if (!aParentFrame->IsFlexOrGridContainer()) { |
| 8798 | return; |
| 8799 | } |
| 8800 | |
| 8801 | bool prevChildWasAnonItem = false; |
| 8802 | for (const nsIFrame* child : aChildren) { |
| 8803 | MOZ_ASSERT(!FrameWantsToBeInAnonymousItem(aParentFrame, child),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!FrameWantsToBeInAnonymousItem(aParentFrame, child)) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!FrameWantsToBeInAnonymousItem(aParentFrame, child)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!FrameWantsToBeInAnonymousItem(aParentFrame, child)" " (" "frame wants to be inside an anonymous item, but it isn't" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 8804 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!FrameWantsToBeInAnonymousItem(aParentFrame, child)" ") (" "frame wants to be inside an anonymous item, but it isn't" ")"); do { MOZ_CrashSequence(__null, 8804); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 8804 | "frame wants to be inside an anonymous item, but it isn't")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!FrameWantsToBeInAnonymousItem(aParentFrame, child)) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!FrameWantsToBeInAnonymousItem(aParentFrame, child)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!FrameWantsToBeInAnonymousItem(aParentFrame, child)" " (" "frame wants to be inside an anonymous item, but it isn't" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 8804 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!FrameWantsToBeInAnonymousItem(aParentFrame, child)" ") (" "frame wants to be inside an anonymous item, but it isn't" ")"); do { MOZ_CrashSequence(__null, 8804); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8805 | if (IsAnonymousItem(child)) { |
| 8806 | AssertAnonymousFlexOrGridItemParent(child, aParentFrame); |
| 8807 | MOZ_ASSERT(!prevChildWasAnonItem, "two anon items in a row")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!prevChildWasAnonItem)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!prevChildWasAnonItem))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("!prevChildWasAnonItem" " (" "two anon items in a row" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8807); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!prevChildWasAnonItem" ") (" "two anon items in a row" ")"); do { MOZ_CrashSequence (__null, 8807); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 8808 | nsIFrame* firstWrappedChild = child->PrincipalChildList().FirstChild(); |
| 8809 | MOZ_ASSERT(firstWrappedChild, "anonymous item shouldn't be empty")do { static_assert( mozilla::detail::AssertionConditionType< decltype(firstWrappedChild)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(firstWrappedChild))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("firstWrappedChild" " (" "anonymous item shouldn't be empty" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8809); AnnotateMozCrashReason("MOZ_ASSERT" "(" "firstWrappedChild" ") (" "anonymous item shouldn't be empty" ")"); do { MOZ_CrashSequence (__null, 8809); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 8810 | prevChildWasAnonItem = true; |
| 8811 | } else { |
| 8812 | prevChildWasAnonItem = false; |
| 8813 | } |
| 8814 | } |
| 8815 | #endif |
| 8816 | } |
| 8817 | |
| 8818 | static bool FrameHasOnlyPlaceholderPrevSiblings(const nsIFrame* aFrame) { |
| 8819 | // Check for prev siblings, ignoring placeholder frames. |
| 8820 | MOZ_ASSERT(aFrame, "frame must not be null")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame" " (" "frame must not be null" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 8820 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ") (" "frame must not be null" ")"); do { MOZ_CrashSequence(__null, 8820); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8821 | const nsIFrame* prevSibling = aFrame; |
| 8822 | do { |
| 8823 | prevSibling = prevSibling->GetPrevSibling(); |
| 8824 | } while (prevSibling && prevSibling->IsPlaceholderFrame()); |
| 8825 | return !prevSibling; |
| 8826 | } |
| 8827 | |
| 8828 | static bool FrameHasOnlyPlaceholderNextSiblings(const nsIFrame* aFrame) { |
| 8829 | // Check for next siblings, ignoring placeholder frames. |
| 8830 | MOZ_ASSERT(aFrame, "frame must not be null")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame" " (" "frame must not be null" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 8830 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ") (" "frame must not be null" ")"); do { MOZ_CrashSequence(__null, 8830); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8831 | const nsIFrame* nextSibling = aFrame; |
| 8832 | do { |
| 8833 | nextSibling = nextSibling->GetNextSibling(); |
| 8834 | } while (nextSibling && nextSibling->IsPlaceholderFrame()); |
| 8835 | return !nextSibling; |
| 8836 | } |
| 8837 | |
| 8838 | static void SetPageValues(nsIFrame* const aFrame, |
| 8839 | const nsAtom* const aAutoValue, |
| 8840 | const nsAtom* const aStartValue, |
| 8841 | const nsAtom* const aEndValue) { |
| 8842 | MOZ_ASSERT(aAutoValue, "Auto page value should never be null")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aAutoValue)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aAutoValue))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aAutoValue" " (" "Auto page value should never be null" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 8842 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aAutoValue" ") (" "Auto page value should never be null" ")"); do { MOZ_CrashSequence (__null, 8842); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 8843 | MOZ_ASSERT(aStartValue || aEndValue, "Should not have called with no values")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStartValue || aEndValue)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStartValue || aEndValue))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStartValue || aEndValue" " (" "Should not have called with no values" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8843); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStartValue || aEndValue" ") (" "Should not have called with no values" ")"); do { MOZ_CrashSequence (__null, 8843); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 8844 | nsIFrame::PageValues* pageValues = |
| 8845 | aFrame->GetProperty(nsIFrame::PageValuesProperty()); |
| 8846 | |
| 8847 | if (aStartValue) { |
| 8848 | if (aStartValue == aAutoValue) { |
| 8849 | // If the page value struct already exists, set the start value to null |
| 8850 | // to indicate the auto value. |
| 8851 | if (pageValues) { |
| 8852 | pageValues->mStartPageValue = nullptr; |
| 8853 | } |
| 8854 | } else { |
| 8855 | // The start value is not auto, so we need to store it, creating the |
| 8856 | // page values struct if it does not already exist. |
| 8857 | if (!pageValues) { |
| 8858 | pageValues = new nsIFrame::PageValues(); |
| 8859 | aFrame->SetProperty(nsIFrame::PageValuesProperty(), pageValues); |
| 8860 | } |
| 8861 | pageValues->mStartPageValue = aStartValue; |
| 8862 | } |
| 8863 | } |
| 8864 | if (aEndValue) { |
| 8865 | if (aEndValue == aAutoValue) { |
| 8866 | // If the page value struct already exists, set the end value to null |
| 8867 | // to indicate the auto value. |
| 8868 | if (pageValues) { |
| 8869 | pageValues->mEndPageValue = nullptr; |
| 8870 | } |
| 8871 | } else { |
| 8872 | // The end value is not auto, so we need to store it, creating the |
| 8873 | // page values struct if it does not already exist. |
| 8874 | if (!pageValues) { |
| 8875 | pageValues = new nsIFrame::PageValues(); |
| 8876 | aFrame->SetProperty(nsIFrame::PageValuesProperty(), pageValues); |
| 8877 | } |
| 8878 | pageValues->mEndPageValue = aEndValue; |
| 8879 | } |
| 8880 | } |
| 8881 | } |
| 8882 | |
| 8883 | inline void nsCSSFrameConstructor::ConstructFramesFromItemList( |
| 8884 | nsFrameConstructorState& aState, FrameConstructionItemList& aItems, |
| 8885 | nsContainerFrame* aParentFrame, bool aParentIsWrapperAnonBox, |
| 8886 | nsFrameList& aFrameList) { |
| 8887 | #ifdef DEBUG1 |
| 8888 | // The assertion condition should match the logic in |
| 8889 | // MaybePushFloatContainingBlock(). |
| 8890 | MOZ_ASSERT(!(ShouldSuppressFloatingOfDescendants(aParentFrame) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(ShouldSuppressFloatingOfDescendants (aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame" " (" "Our caller or ProcessChildren()'s caller should call " "MaybePushFloatContainingBlock() to handle the float containing " "block candidate!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8895); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame" ") (" "Our caller or ProcessChildren()'s caller should call " "MaybePushFloatContainingBlock() to handle the float containing " "block candidate!" ")"); do { MOZ_CrashSequence(__null, 8895 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 8891 | aParentFrame->IsFloatContainingBlock()) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(ShouldSuppressFloatingOfDescendants (aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame" " (" "Our caller or ProcessChildren()'s caller should call " "MaybePushFloatContainingBlock() to handle the float containing " "block candidate!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8895); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame" ") (" "Our caller or ProcessChildren()'s caller should call " "MaybePushFloatContainingBlock() to handle the float containing " "block candidate!" ")"); do { MOZ_CrashSequence(__null, 8895 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 8892 | aState.mFloatCBCandidate == aParentFrame,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(ShouldSuppressFloatingOfDescendants (aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame" " (" "Our caller or ProcessChildren()'s caller should call " "MaybePushFloatContainingBlock() to handle the float containing " "block candidate!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8895); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame" ") (" "Our caller or ProcessChildren()'s caller should call " "MaybePushFloatContainingBlock() to handle the float containing " "block candidate!" ")"); do { MOZ_CrashSequence(__null, 8895 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 8893 | "Our caller or ProcessChildren()'s caller should call "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(ShouldSuppressFloatingOfDescendants (aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame" " (" "Our caller or ProcessChildren()'s caller should call " "MaybePushFloatContainingBlock() to handle the float containing " "block candidate!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8895); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame" ") (" "Our caller or ProcessChildren()'s caller should call " "MaybePushFloatContainingBlock() to handle the float containing " "block candidate!" ")"); do { MOZ_CrashSequence(__null, 8895 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 8894 | "MaybePushFloatContainingBlock() to handle the float containing "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(ShouldSuppressFloatingOfDescendants (aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame" " (" "Our caller or ProcessChildren()'s caller should call " "MaybePushFloatContainingBlock() to handle the float containing " "block candidate!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8895); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame" ") (" "Our caller or ProcessChildren()'s caller should call " "MaybePushFloatContainingBlock() to handle the float containing " "block candidate!" ")"); do { MOZ_CrashSequence(__null, 8895 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 8895 | "block candidate!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(ShouldSuppressFloatingOfDescendants (aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame" " (" "Our caller or ProcessChildren()'s caller should call " "MaybePushFloatContainingBlock() to handle the float containing " "block candidate!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8895); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!(ShouldSuppressFloatingOfDescendants(aParentFrame) || aParentFrame->IsFloatContainingBlock()) || aState.mFloatCBCandidate == aParentFrame" ") (" "Our caller or ProcessChildren()'s caller should call " "MaybePushFloatContainingBlock() to handle the float containing " "block candidate!" ")"); do { MOZ_CrashSequence(__null, 8895 ); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 8896 | aState.mFloatCBCandidate = nullptr; |
| 8897 | #endif |
| 8898 | |
| 8899 | // Ensure aParentIsWrapperAnonBox is correct. We _could_ compute it directly, |
| 8900 | // but it would be a bit slow, which is why we pass it from callers, who have |
| 8901 | // that information offhand in many cases. |
| 8902 | MOZ_ASSERT(ParentIsWrapperAnonBox(aParentFrame) == aParentIsWrapperAnonBox)do { static_assert( mozilla::detail::AssertionConditionType< decltype(ParentIsWrapperAnonBox(aParentFrame) == aParentIsWrapperAnonBox )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(ParentIsWrapperAnonBox(aParentFrame) == aParentIsWrapperAnonBox ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "ParentIsWrapperAnonBox(aParentFrame) == aParentIsWrapperAnonBox" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8902); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "ParentIsWrapperAnonBox(aParentFrame) == aParentIsWrapperAnonBox" ")"); do { MOZ_CrashSequence(__null, 8902); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8903 | |
| 8904 | // Note: we explicitly exclude TableColGroupFrame because it doesn't |
| 8905 | // have the FCDATA_IS_WRAPPER_ANON_BOX on pseudos so aParentIsWrapperAnonBox |
| 8906 | // is false for such pseudos (see sPseudoParentData below). |
| 8907 | if (!aParentIsWrapperAnonBox && aState.mHasRenderedLegend && |
| 8908 | aParentFrame->GetContent()->IsHTMLElement(nsGkAtoms::fieldset) && |
| 8909 | !aParentFrame->IsTableColGroupFrame()) { |
| 8910 | DebugOnly<bool> found = false; |
| 8911 | for (FCItemIterator iter(aItems); !iter.IsDone(); iter.Next()) { |
| 8912 | if (iter.item().mIsRenderedLegend) { |
| 8913 | // This makes the rendered legend the first frame in the fieldset child |
| 8914 | // list which makes keyboard traversal follow the visual order. |
| 8915 | nsFieldSetFrame* fieldSetFrame = GetFieldSetFrameFor(aParentFrame); |
| 8916 | nsFrameList renderedLegend; |
| 8917 | ConstructFramesFromItem(aState, iter, fieldSetFrame, renderedLegend); |
| 8918 | MOZ_ASSERT(renderedLegend.OnlyChild(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(renderedLegend.OnlyChild())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(renderedLegend.OnlyChild())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("renderedLegend.OnlyChild()" " (" "a rendered legend should have exactly one frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8919); AnnotateMozCrashReason("MOZ_ASSERT" "(" "renderedLegend.OnlyChild()" ") (" "a rendered legend should have exactly one frame" ")") ; do { MOZ_CrashSequence(__null, 8919); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 8919 | "a rendered legend should have exactly one frame")do { static_assert( mozilla::detail::AssertionConditionType< decltype(renderedLegend.OnlyChild())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(renderedLegend.OnlyChild())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("renderedLegend.OnlyChild()" " (" "a rendered legend should have exactly one frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8919); AnnotateMozCrashReason("MOZ_ASSERT" "(" "renderedLegend.OnlyChild()" ") (" "a rendered legend should have exactly one frame" ")") ; do { MOZ_CrashSequence(__null, 8919); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8920 | fieldSetFrame->InsertFrames(FrameChildListID::Principal, nullptr, |
| 8921 | nullptr, std::move(renderedLegend)); |
| 8922 | FCItemIterator next = iter; |
| 8923 | next.Next(); |
| 8924 | iter.DeleteItemsTo(this, next); |
| 8925 | found = true; |
| 8926 | break; |
| 8927 | } |
| 8928 | } |
| 8929 | MOZ_ASSERT(found, "should have found our rendered legend")do { static_assert( mozilla::detail::AssertionConditionType< decltype(found)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(found))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("found" " (" "should have found our rendered legend" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 8929 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "found" ") (" "should have found our rendered legend" ")"); do { MOZ_CrashSequence(__null, 8929); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8930 | } |
| 8931 | |
| 8932 | CreateNeededPseudoContainers(aState, aItems, aParentFrame); |
| 8933 | CreateNeededAnonFlexOrGridItems(aState, aItems, aParentFrame); |
| 8934 | CreateNeededPseudoInternalRubyBoxes(aState, aItems, aParentFrame); |
| 8935 | CreateNeededPseudoSiblings(aState, aItems, aParentFrame); |
| 8936 | |
| 8937 | for (FCItemIterator iter(aItems); !iter.IsDone(); iter.Next()) { |
| 8938 | MOZ_ASSERT(!iter.item().mIsRenderedLegend,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!iter.item().mIsRenderedLegend)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!iter.item().mIsRenderedLegend ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!iter.item().mIsRenderedLegend" " (" "Only one item can be the rendered legend, " "and it should've been handled above" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8940); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!iter.item().mIsRenderedLegend" ") (" "Only one item can be the rendered legend, " "and it should've been handled above" ")"); do { MOZ_CrashSequence(__null, 8940); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 8939 | "Only one item can be the rendered legend, "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!iter.item().mIsRenderedLegend)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!iter.item().mIsRenderedLegend ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!iter.item().mIsRenderedLegend" " (" "Only one item can be the rendered legend, " "and it should've been handled above" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8940); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!iter.item().mIsRenderedLegend" ") (" "Only one item can be the rendered legend, " "and it should've been handled above" ")"); do { MOZ_CrashSequence(__null, 8940); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 8940 | "and it should've been handled above")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!iter.item().mIsRenderedLegend)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!iter.item().mIsRenderedLegend ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!iter.item().mIsRenderedLegend" " (" "Only one item can be the rendered legend, " "and it should've been handled above" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8940); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!iter.item().mIsRenderedLegend" ") (" "Only one item can be the rendered legend, " "and it should've been handled above" ")"); do { MOZ_CrashSequence(__null, 8940); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8941 | NS_ASSERTION(iter.item().DesiredParentType() == GetParentType(aParentFrame),do { if (!(iter.item().DesiredParentType() == GetParentType(aParentFrame ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Needed pseudos didn't get created; expect bad things" , "iter.item().DesiredParentType() == GetParentType(aParentFrame)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8942); MOZ_PretendNoReturn (); } } while (0) |
| 8942 | "Needed pseudos didn't get created; expect bad things")do { if (!(iter.item().DesiredParentType() == GetParentType(aParentFrame ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Needed pseudos didn't get created; expect bad things" , "iter.item().DesiredParentType() == GetParentType(aParentFrame)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 8942); MOZ_PretendNoReturn (); } } while (0); |
| 8943 | ConstructFramesFromItem(aState, iter, aParentFrame, aFrameList); |
| 8944 | } |
| 8945 | |
| 8946 | VerifyGridFlexContainerChildren(aParentFrame, aFrameList); |
| 8947 | |
| 8948 | // Calculate and propagate page-name values for each frame in the frame list. |
| 8949 | // We do not want to compute and propagate page-name values from frames that |
| 8950 | // are children of any subclasses of block frames, but not actually a block |
| 8951 | // frame. The page-name property does not apply to frames which cannot create |
| 8952 | // class A breakpoints (currently no subclass of BlockFrame can). Because the |
| 8953 | // property does not apply, those children also cannot propagate page-name |
| 8954 | // values. |
| 8955 | // This assumption helps avoid unnecessarily handling page-names for frames |
| 8956 | // such as form controls, which also avoids bug 1819468. |
| 8957 | if (aState.mPresContext->IsPaginated() && aParentFrame->IsBlockFrame()) { |
| 8958 | // Set the start/end page values while iterating the frame list, to walk |
| 8959 | // up the frame tree only once after iterating the frame list. |
| 8960 | // This also avoids extra property lookups on these frames. |
| 8961 | MOZ_ASSERT(aState.mAutoPageNameValue == aParentFrame->GetAutoPageValue(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aState.mAutoPageNameValue == aParentFrame->GetAutoPageValue ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aState.mAutoPageNameValue == aParentFrame->GetAutoPageValue ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aState.mAutoPageNameValue == aParentFrame->GetAutoPageValue()" " (" "aState.mAutoPageNameValue should have been equivalent to " "the auto value stored on our parent frame." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8963); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aState.mAutoPageNameValue == aParentFrame->GetAutoPageValue()" ") (" "aState.mAutoPageNameValue should have been equivalent to " "the auto value stored on our parent frame." ")"); do { MOZ_CrashSequence (__null, 8963); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 8962 | "aState.mAutoPageNameValue should have been equivalent to "do { static_assert( mozilla::detail::AssertionConditionType< decltype(aState.mAutoPageNameValue == aParentFrame->GetAutoPageValue ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aState.mAutoPageNameValue == aParentFrame->GetAutoPageValue ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aState.mAutoPageNameValue == aParentFrame->GetAutoPageValue()" " (" "aState.mAutoPageNameValue should have been equivalent to " "the auto value stored on our parent frame." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8963); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aState.mAutoPageNameValue == aParentFrame->GetAutoPageValue()" ") (" "aState.mAutoPageNameValue should have been equivalent to " "the auto value stored on our parent frame." ")"); do { MOZ_CrashSequence (__null, 8963); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 8963 | "the auto value stored on our parent frame.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aState.mAutoPageNameValue == aParentFrame->GetAutoPageValue ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aState.mAutoPageNameValue == aParentFrame->GetAutoPageValue ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aState.mAutoPageNameValue == aParentFrame->GetAutoPageValue()" " (" "aState.mAutoPageNameValue should have been equivalent to " "the auto value stored on our parent frame." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 8963); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aState.mAutoPageNameValue == aParentFrame->GetAutoPageValue()" ") (" "aState.mAutoPageNameValue should have been equivalent to " "the auto value stored on our parent frame." ")"); do { MOZ_CrashSequence (__null, 8963); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 8964 | // Even though we store null for page values that equal the "auto" resolved |
| 8965 | // value on frames, we always want startPageValue/endPageValue to be the |
| 8966 | // actual atoms reflecting the start/end values. This is because when we |
| 8967 | // propagate the values up the frame tree, we will need to compare them to |
| 8968 | // the auto value for each ancestor. This value might be different than the |
| 8969 | // auto value for this frame. |
| 8970 | const nsAtom* startPageValue = nullptr; |
| 8971 | const nsAtom* endPageValue = nullptr; |
| 8972 | for (nsIFrame* f : aFrameList) { |
| 8973 | if (f->IsPlaceholderFrame()) { |
| 8974 | continue; |
| 8975 | } |
| 8976 | // Resolve auto against the parent frame's used page name, which has been |
| 8977 | // determined and set on aState.mAutoPageNameValue. If this item is not |
| 8978 | // block-level then we use the value that auto resolves to. |
| 8979 | // |
| 8980 | // This is to achieve the propagation behavior described in the spec: |
| 8981 | // |
| 8982 | // "A start page value and end page value is determined for each box as |
| 8983 | // the value (if any) propagated from its first or last child box |
| 8984 | // (respectively), else the used value on the box itself." |
| 8985 | // |
| 8986 | // "A child propagates its own start or end page value if and only if the |
| 8987 | // page property applies to it." |
| 8988 | // |
| 8989 | // The page property only applies to "boxes that create class A break |
| 8990 | // points". When taken together, this means that non block-level children |
| 8991 | // do not propagate start/end page values, and instead we use "the used |
| 8992 | // value on the box itself", the "box itself" being aParentFrame. This |
| 8993 | // value has been determined and saved as aState.mAutoPageNameValue |
| 8994 | // |
| 8995 | // https://www.w3.org/TR/css-page-3/#using-named-pages |
| 8996 | // https://www.w3.org/TR/css-break-3/#btw-blocks |
| 8997 | const StylePageName& pageName = f->StylePage()->mPage; |
| 8998 | const nsAtom* const pageNameAtom = |
| 8999 | (pageName.IsPageName() && f->IsBlockOutside()) |
| 9000 | ? pageName.AsPageName().AsAtom() |
| 9001 | : aState.mAutoPageNameValue; |
| 9002 | nsIFrame::PageValues* pageValues = |
| 9003 | f->GetProperty(nsIFrame::PageValuesProperty()); |
| 9004 | // If this frame has any children, it will already have had its page |
| 9005 | // values set at this point. However, if no page values have been set, |
| 9006 | // we must ensure that the appropriate PageValuesProperty value has been |
| 9007 | // set. |
| 9008 | // If the page name is equal to the auto value, then PageValuesProperty |
| 9009 | // should remain null to indicate that the start/end values are both |
| 9010 | // equal to the auto value. |
| 9011 | if (pageNameAtom != aState.mAutoPageNameValue && !pageValues) { |
| 9012 | pageValues = new nsIFrame::PageValues{pageNameAtom, pageNameAtom}; |
| 9013 | f->SetProperty(nsIFrame::PageValuesProperty(), pageValues); |
| 9014 | } |
| 9015 | // We don't want to use GetStartPageValue() or GetEndPageValue(), as each |
| 9016 | // requires a property lookup which we can avoid here. |
| 9017 | if (!startPageValue) { |
| 9018 | startPageValue = (pageValues && pageValues->mStartPageValue) |
| 9019 | ? pageValues->mStartPageValue.get() |
| 9020 | : aState.mAutoPageNameValue; |
| 9021 | } |
| 9022 | endPageValue = (pageValues && pageValues->mEndPageValue) |
| 9023 | ? pageValues->mEndPageValue.get() |
| 9024 | : aState.mAutoPageNameValue; |
| 9025 | MOZ_ASSERT(startPageValue && endPageValue,do { static_assert( mozilla::detail::AssertionConditionType< decltype(startPageValue && endPageValue)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(startPageValue && endPageValue))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("startPageValue && endPageValue" " (" "Should have found start/end page value" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9026); AnnotateMozCrashReason("MOZ_ASSERT" "(" "startPageValue && endPageValue" ") (" "Should have found start/end page value" ")"); do { MOZ_CrashSequence (__null, 9026); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 9026 | "Should have found start/end page value")do { static_assert( mozilla::detail::AssertionConditionType< decltype(startPageValue && endPageValue)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(startPageValue && endPageValue))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("startPageValue && endPageValue" " (" "Should have found start/end page value" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9026); AnnotateMozCrashReason("MOZ_ASSERT" "(" "startPageValue && endPageValue" ") (" "Should have found start/end page value" ")"); do { MOZ_CrashSequence (__null, 9026); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 9027 | } |
| 9028 | MOZ_ASSERT(!startPageValue == !endPageValue,do { static_assert( mozilla::detail::AssertionConditionType< decltype(!startPageValue == !endPageValue)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!startPageValue == !endPageValue ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!startPageValue == !endPageValue" " (" "Should have set both or neither page values" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9029 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!startPageValue == !endPageValue" ") (" "Should have set both or neither page values" ")"); do { MOZ_CrashSequence(__null, 9029); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 9029 | "Should have set both or neither page values")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!startPageValue == !endPageValue)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!startPageValue == !endPageValue ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "!startPageValue == !endPageValue" " (" "Should have set both or neither page values" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9029 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!startPageValue == !endPageValue" ") (" "Should have set both or neither page values" ")"); do { MOZ_CrashSequence(__null, 9029); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 9030 | if (startPageValue) { |
| 9031 | // Walk up the frame tree from our parent frame, propagating start and |
| 9032 | // end page values. |
| 9033 | // As we go, if we find that, for a frame, we are not contributing one of |
| 9034 | // the start/end page values, then our subtree will not contribute this |
| 9035 | // value from that frame onward. startPageValue/endPageValue are set to |
| 9036 | // null to indicate this. |
| 9037 | // Stop iterating when we are not contributing either start or end |
| 9038 | // values, when we hit the root frame (no parent), or when we find a |
| 9039 | // frame that is not a block frame. |
| 9040 | for (nsContainerFrame* ancestorFrame = aParentFrame; |
| 9041 | (startPageValue || endPageValue) && ancestorFrame && |
| 9042 | ancestorFrame->IsBlockFrame(); |
| 9043 | ancestorFrame = ancestorFrame->GetParent()) { |
| 9044 | MOZ_ASSERT(!ancestorFrame->GetPrevInFlow(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!ancestorFrame->GetPrevInFlow())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!ancestorFrame->GetPrevInFlow ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!ancestorFrame->GetPrevInFlow()" " (" "Should not have fragmentation yet" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9045 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!ancestorFrame->GetPrevInFlow()" ") (" "Should not have fragmentation yet" ")"); do { MOZ_CrashSequence (__null, 9045); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 9045 | "Should not have fragmentation yet")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!ancestorFrame->GetPrevInFlow())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!ancestorFrame->GetPrevInFlow ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!ancestorFrame->GetPrevInFlow()" " (" "Should not have fragmentation yet" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9045 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!ancestorFrame->GetPrevInFlow()" ") (" "Should not have fragmentation yet" ")"); do { MOZ_CrashSequence (__null, 9045); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 9046 | MOZ_ASSERT(ancestorFrame->mWasVisitedByAutoFrameConstructionPageName,do { static_assert( mozilla::detail::AssertionConditionType< decltype(ancestorFrame->mWasVisitedByAutoFrameConstructionPageName )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(ancestorFrame->mWasVisitedByAutoFrameConstructionPageName ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "ancestorFrame->mWasVisitedByAutoFrameConstructionPageName" " (" "Frame should have been visited by " "AutoFrameConstructionPageName" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9048 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ancestorFrame->mWasVisitedByAutoFrameConstructionPageName" ") (" "Frame should have been visited by " "AutoFrameConstructionPageName" ")"); do { MOZ_CrashSequence(__null, 9048); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 9047 | "Frame should have been visited by "do { static_assert( mozilla::detail::AssertionConditionType< decltype(ancestorFrame->mWasVisitedByAutoFrameConstructionPageName )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(ancestorFrame->mWasVisitedByAutoFrameConstructionPageName ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "ancestorFrame->mWasVisitedByAutoFrameConstructionPageName" " (" "Frame should have been visited by " "AutoFrameConstructionPageName" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9048 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ancestorFrame->mWasVisitedByAutoFrameConstructionPageName" ") (" "Frame should have been visited by " "AutoFrameConstructionPageName" ")"); do { MOZ_CrashSequence(__null, 9048); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 9048 | "AutoFrameConstructionPageName")do { static_assert( mozilla::detail::AssertionConditionType< decltype(ancestorFrame->mWasVisitedByAutoFrameConstructionPageName )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(ancestorFrame->mWasVisitedByAutoFrameConstructionPageName ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "ancestorFrame->mWasVisitedByAutoFrameConstructionPageName" " (" "Frame should have been visited by " "AutoFrameConstructionPageName" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9048 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ancestorFrame->mWasVisitedByAutoFrameConstructionPageName" ") (" "Frame should have been visited by " "AutoFrameConstructionPageName" ")"); do { MOZ_CrashSequence(__null, 9048); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9049 | { |
| 9050 | // Get what the auto value is, based on this frame's parent. |
| 9051 | // For the root frame, `auto` resolves to the empty atom. |
| 9052 | const nsContainerFrame* const parent = ancestorFrame->GetParent(); |
| 9053 | const nsAtom* const parentAuto = MOZ_LIKELY(parent)(__builtin_expect(!!(parent), 1)) |
| 9054 | ? parent->GetAutoPageValue() |
| 9055 | : nsGkAtoms::_empty; |
| 9056 | SetPageValues(ancestorFrame, parentAuto, startPageValue, |
| 9057 | endPageValue); |
| 9058 | } |
| 9059 | // Once we stop contributing start/end values, we know there is a |
| 9060 | // sibling subtree that contributed that value to our shared parent |
| 9061 | // instead of our starting frame's subtree. This means once |
| 9062 | // startPageValue/endPageValue becomes null, indicating that we are no |
| 9063 | // longer contributing that page value, it should stay null and we no |
| 9064 | // longer need to check for siblings in that direction. |
| 9065 | if (startPageValue && |
| 9066 | !FrameHasOnlyPlaceholderPrevSiblings(ancestorFrame)) { |
| 9067 | startPageValue = nullptr; |
| 9068 | } |
| 9069 | if (endPageValue && |
| 9070 | !FrameHasOnlyPlaceholderNextSiblings(ancestorFrame)) { |
| 9071 | endPageValue = nullptr; |
| 9072 | } |
| 9073 | } |
| 9074 | } |
| 9075 | } |
| 9076 | |
| 9077 | if (aParentIsWrapperAnonBox) { |
| 9078 | for (nsIFrame* f : aFrameList) { |
| 9079 | f->SetParentIsWrapperAnonBox(); |
| 9080 | } |
| 9081 | } |
| 9082 | } |
| 9083 | |
| 9084 | void nsCSSFrameConstructor::AddFCItemsForAnonymousContent( |
| 9085 | nsFrameConstructorState& aState, nsContainerFrame* aFrame, |
| 9086 | const nsTArray<nsIAnonymousContentCreator::ContentInfo>& aAnonymousItems, |
| 9087 | FrameConstructionItemList& aItemsToConstruct, |
| 9088 | const AutoFrameConstructionPageName&) { |
| 9089 | for (const auto& info : aAnonymousItems) { |
| 9090 | nsIContent* content = info.mContent; |
| 9091 | // Gecko-styled nodes should have no pending restyle flags. |
| 9092 | // Assert some things about this content |
| 9093 | MOZ_ASSERT(!(content->GetFlags() &do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(content->GetFlags() & (NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME)))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(content->GetFlags() & (NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!(content->GetFlags() & (NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME))" " (" "Should not be marked as needing frames" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9095); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!(content->GetFlags() & (NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME))" ") (" "Should not be marked as needing frames" ")"); do { MOZ_CrashSequence (__null, 9095); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 9094 | (NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME)),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(content->GetFlags() & (NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME)))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(content->GetFlags() & (NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!(content->GetFlags() & (NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME))" " (" "Should not be marked as needing frames" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9095); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!(content->GetFlags() & (NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME))" ") (" "Should not be marked as needing frames" ")"); do { MOZ_CrashSequence (__null, 9095); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 9095 | "Should not be marked as needing frames")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!(content->GetFlags() & (NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME)))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!(content->GetFlags() & (NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!(content->GetFlags() & (NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME))" " (" "Should not be marked as needing frames" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9095); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!(content->GetFlags() & (NODE_DESCENDANTS_NEED_FRAMES | NODE_NEEDS_FRAME))" ") (" "Should not be marked as needing frames" ")"); do { MOZ_CrashSequence (__null, 9095); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 9096 | MOZ_ASSERT(!content->GetPrimaryFrame(), "Should have no existing frame")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!content->GetPrimaryFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!content->GetPrimaryFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!content->GetPrimaryFrame()" " (" "Should have no existing frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9096 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!content->GetPrimaryFrame()" ") (" "Should have no existing frame" ")"); do { MOZ_CrashSequence (__null, 9096); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 9097 | MOZ_ASSERT(!content->IsComment() && !content->IsProcessingInstruction(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!content->IsComment() && !content->IsProcessingInstruction ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!content->IsComment() && !content->IsProcessingInstruction ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!content->IsComment() && !content->IsProcessingInstruction()" " (" "Why is someone creating garbage anonymous content" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 9098); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!content->IsComment() && !content->IsProcessingInstruction()" ") (" "Why is someone creating garbage anonymous content" ")" ); do { MOZ_CrashSequence(__null, 9098); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 9098 | "Why is someone creating garbage anonymous content")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!content->IsComment() && !content->IsProcessingInstruction ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!content->IsComment() && !content->IsProcessingInstruction ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!content->IsComment() && !content->IsProcessingInstruction()" " (" "Why is someone creating garbage anonymous content" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 9098); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!content->IsComment() && !content->IsProcessingInstruction()" ") (" "Why is someone creating garbage anonymous content" ")" ); do { MOZ_CrashSequence(__null, 9098); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9099 | |
| 9100 | // Make sure we eagerly performed the servo cascade when the anonymous |
| 9101 | // nodes were created. |
| 9102 | MOZ_ASSERT(!content->IsElement() || content->AsElement()->HasServoData())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!content->IsElement() || content->AsElement()-> HasServoData())>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(!content->IsElement() || content ->AsElement()->HasServoData()))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("!content->IsElement() || content->AsElement()->HasServoData()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 9102); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "!content->IsElement() || content->AsElement()->HasServoData()" ")"); do { MOZ_CrashSequence(__null, 9102); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9103 | |
| 9104 | RefPtr<ComputedStyle> computedStyle = ResolveComputedStyle(content); |
| 9105 | |
| 9106 | AddFrameConstructionItemsInternal(aState, content, aFrame, true, |
| 9107 | computedStyle, {ItemFlag::AllowPageBreak}, |
| 9108 | aItemsToConstruct); |
| 9109 | } |
| 9110 | } |
| 9111 | |
| 9112 | void nsCSSFrameConstructor::ProcessChildren( |
| 9113 | nsFrameConstructorState& aState, nsIContent* aContent, |
| 9114 | ComputedStyle* aComputedStyle, nsContainerFrame* aFrame, |
| 9115 | const bool aCanHaveGeneratedContent, nsFrameList& aFrameList, |
| 9116 | const bool aAllowBlockStyles, nsIFrame* aPossiblyLeafFrame) { |
| 9117 | MOZ_ASSERT(aFrame, "Must have parent frame here")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame" " (" "Must have parent frame here" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9117 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ") (" "Must have parent frame here" ")"); do { MOZ_CrashSequence(__null, 9117); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9118 | MOZ_ASSERT(aFrame->GetContentInsertionFrame() == aFrame,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->GetContentInsertionFrame() == aFrame)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aFrame->GetContentInsertionFrame() == aFrame))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame->GetContentInsertionFrame() == aFrame" " (" "Parent frame in ProcessChildren should be its own " "content insertion frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9120 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->GetContentInsertionFrame() == aFrame" ") (" "Parent frame in ProcessChildren should be its own " "content insertion frame" ")"); do { MOZ_CrashSequence(__null, 9120); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 9119 | "Parent frame in ProcessChildren should be its own "do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->GetContentInsertionFrame() == aFrame)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aFrame->GetContentInsertionFrame() == aFrame))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame->GetContentInsertionFrame() == aFrame" " (" "Parent frame in ProcessChildren should be its own " "content insertion frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9120 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->GetContentInsertionFrame() == aFrame" ") (" "Parent frame in ProcessChildren should be its own " "content insertion frame" ")"); do { MOZ_CrashSequence(__null, 9120); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 9120 | "content insertion frame")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->GetContentInsertionFrame() == aFrame)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aFrame->GetContentInsertionFrame() == aFrame))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame->GetContentInsertionFrame() == aFrame" " (" "Parent frame in ProcessChildren should be its own " "content insertion frame" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9120 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->GetContentInsertionFrame() == aFrame" ") (" "Parent frame in ProcessChildren should be its own " "content insertion frame" ")"); do { MOZ_CrashSequence(__null, 9120); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9121 | |
| 9122 | const uint32_t kMaxDepth = 2 * MAX_REFLOW_DEPTH1026; |
| 9123 | static_assert(kMaxDepth <= UINT16_MAX(65535), "mCurrentDepth type is too narrow"); |
| 9124 | AutoRestore<uint16_t> savedDepth(mCurrentDepth); |
| 9125 | if (mCurrentDepth != UINT16_MAX(65535)) { |
| 9126 | ++mCurrentDepth; |
| 9127 | } |
| 9128 | |
| 9129 | if (!aPossiblyLeafFrame) { |
| 9130 | aPossiblyLeafFrame = aFrame; |
| 9131 | } |
| 9132 | |
| 9133 | // XXXbz ideally, this would do all the pushing of various |
| 9134 | // containing blocks as needed, so callers don't have to do it... |
| 9135 | |
| 9136 | // Check that our parent frame is a block before allowing ::first-letter/line. |
| 9137 | // E.g. <button style="display:grid"> should not allow it. |
| 9138 | const bool allowFirstPseudos = |
| 9139 | aAllowBlockStyles && aFrame->IsBlockFrameOrSubclass(); |
| 9140 | bool haveFirstLetterStyle = false, haveFirstLineStyle = false; |
| 9141 | if (allowFirstPseudos) { |
| 9142 | ShouldHaveSpecialBlockStyle(aContent, aComputedStyle, &haveFirstLetterStyle, |
| 9143 | &haveFirstLineStyle); |
| 9144 | } |
| 9145 | |
| 9146 | AutoFrameConstructionItemList itemsToConstruct(this); |
| 9147 | AutoFrameConstructionPageName pageNameTracker(aState, aFrame); |
| 9148 | |
| 9149 | // If we have first-letter or first-line style then frames can get |
| 9150 | // moved around so don't set these flags. |
| 9151 | if (allowFirstPseudos && !haveFirstLetterStyle && !haveFirstLineStyle) { |
| 9152 | itemsToConstruct.SetLineBoundaryAtStart(true); |
| 9153 | itemsToConstruct.SetLineBoundaryAtEnd(true); |
| 9154 | } |
| 9155 | |
| 9156 | // Create any anonymous frames we need here. |
| 9157 | AutoTArray<nsIAnonymousContentCreator::ContentInfo, 4> anonymousItems; |
| 9158 | GetAnonymousContent(aContent, aPossiblyLeafFrame, anonymousItems); |
| 9159 | #ifdef DEBUG1 |
| 9160 | for (auto& item : anonymousItems) { |
| 9161 | MOZ_ASSERT(item.mContent->IsRootOfNativeAnonymousSubtree(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(item.mContent->IsRootOfNativeAnonymousSubtree())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(item.mContent->IsRootOfNativeAnonymousSubtree())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("item.mContent->IsRootOfNativeAnonymousSubtree()" " (" "Content should know it's an anonymous subtree" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9162); AnnotateMozCrashReason("MOZ_ASSERT" "(" "item.mContent->IsRootOfNativeAnonymousSubtree()" ") (" "Content should know it's an anonymous subtree" ")"); do { MOZ_CrashSequence(__null, 9162); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 9162 | "Content should know it's an anonymous subtree")do { static_assert( mozilla::detail::AssertionConditionType< decltype(item.mContent->IsRootOfNativeAnonymousSubtree())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(item.mContent->IsRootOfNativeAnonymousSubtree())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("item.mContent->IsRootOfNativeAnonymousSubtree()" " (" "Content should know it's an anonymous subtree" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9162); AnnotateMozCrashReason("MOZ_ASSERT" "(" "item.mContent->IsRootOfNativeAnonymousSubtree()" ") (" "Content should know it's an anonymous subtree" ")"); do { MOZ_CrashSequence(__null, 9162); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 9163 | } |
| 9164 | #endif |
| 9165 | AddFCItemsForAnonymousContent(aState, aFrame, anonymousItems, |
| 9166 | itemsToConstruct, pageNameTracker); |
| 9167 | |
| 9168 | // Generated content should have the same style parent as normal kids. |
| 9169 | // |
| 9170 | // Note that we don't use this style for looking up things like special |
| 9171 | // block styles because in some cases involving table pseudo-frames it has |
| 9172 | // nothing to do with the parent frame's desired behavior. |
| 9173 | auto* styleParentFrame = |
| 9174 | nsIFrame::CorrectStyleParentFrame(aFrame, PseudoStyleType::NotPseudo); |
| 9175 | ComputedStyle* parentStyle = styleParentFrame->Style(); |
| 9176 | if (parentStyle->StyleDisplay()->mTopLayer == StyleTopLayer::Auto && |
| 9177 | !aContent->IsInNativeAnonymousSubtree()) { |
| 9178 | CreateGeneratedContentItem(aState, aFrame, *aContent->AsElement(), |
| 9179 | *parentStyle, PseudoStyleType::Backdrop, |
| 9180 | itemsToConstruct); |
| 9181 | } |
| 9182 | |
| 9183 | nsBlockFrame* listItem = nullptr; |
| 9184 | bool isOutsideMarker = false; |
| 9185 | if (!aPossiblyLeafFrame->IsLeaf()) { |
| 9186 | if (aCanHaveGeneratedContent) { |
| 9187 | if (parentStyle->StyleDisplay()->IsListItem() && |
| 9188 | (listItem = do_QueryFrame(aFrame)) && |
| 9189 | !styleParentFrame->IsFieldSetFrame()) { |
| 9190 | isOutsideMarker = parentStyle->StyleList()->mListStylePosition == |
| 9191 | StyleListStylePosition::Outside; |
| 9192 | ItemFlags extraFlags; |
| 9193 | if (isOutsideMarker) { |
| 9194 | extraFlags += ItemFlag::IsForOutsideMarker; |
| 9195 | } |
| 9196 | CreateGeneratedContentItem(aState, aFrame, *aContent->AsElement(), |
| 9197 | *parentStyle, PseudoStyleType::Marker, |
| 9198 | itemsToConstruct, extraFlags); |
| 9199 | } |
| 9200 | if (aContent->IsHTMLElement(nsGkAtoms::option)) { |
| 9201 | CreateGeneratedContentItem(aState, aFrame, *aContent->AsElement(), |
| 9202 | *parentStyle, PseudoStyleType::Checkmark, |
| 9203 | itemsToConstruct); |
| 9204 | } |
| 9205 | // Probe for generated content before |
| 9206 | CreateGeneratedContentItem(aState, aFrame, *aContent->AsElement(), |
| 9207 | *parentStyle, PseudoStyleType::Before, |
| 9208 | itemsToConstruct); |
| 9209 | } |
| 9210 | |
| 9211 | const bool addChildItems = MOZ_LIKELY(mCurrentDepth < kMaxDepth)(__builtin_expect(!!(mCurrentDepth < kMaxDepth), 1)); |
| 9212 | if (!addChildItems) { |
| 9213 | NS_WARNING("ProcessChildren max depth exceeded")NS_DebugBreak(NS_DEBUG_WARNING, "ProcessChildren max depth exceeded" , nullptr, "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9213); |
| 9214 | } |
| 9215 | |
| 9216 | FlattenedChildIterator iter(aContent); |
| 9217 | const InsertionPoint insertion(aFrame, aContent); |
| 9218 | for (nsIContent* child = iter.GetNextChild(); child; |
| 9219 | child = iter.GetNextChild()) { |
| 9220 | MOZ_ASSERT(insertion.mContainer == GetInsertionPoint(child).mContainer,do { static_assert( mozilla::detail::AssertionConditionType< decltype(insertion.mContainer == GetInsertionPoint(child).mContainer )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(insertion.mContainer == GetInsertionPoint(child).mContainer ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "insertion.mContainer == GetInsertionPoint(child).mContainer" " (" "GetInsertionPoint should agree with us" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9221); AnnotateMozCrashReason("MOZ_ASSERT" "(" "insertion.mContainer == GetInsertionPoint(child).mContainer" ") (" "GetInsertionPoint should agree with us" ")"); do { MOZ_CrashSequence (__null, 9221); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 9221 | "GetInsertionPoint should agree with us")do { static_assert( mozilla::detail::AssertionConditionType< decltype(insertion.mContainer == GetInsertionPoint(child).mContainer )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(insertion.mContainer == GetInsertionPoint(child).mContainer ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "insertion.mContainer == GetInsertionPoint(child).mContainer" " (" "GetInsertionPoint should agree with us" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9221); AnnotateMozCrashReason("MOZ_ASSERT" "(" "insertion.mContainer == GetInsertionPoint(child).mContainer" ") (" "GetInsertionPoint should agree with us" ")"); do { MOZ_CrashSequence (__null, 9221); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 9222 | if (addChildItems) { |
| 9223 | AddFrameConstructionItems(aState, child, iter.ShadowDOMInvolved(), |
| 9224 | *parentStyle, insertion, itemsToConstruct); |
| 9225 | } else { |
| 9226 | ClearLazyBits(child, child->GetNextSibling()); |
| 9227 | } |
| 9228 | } |
| 9229 | itemsToConstruct.SetParentHasNoShadowDOM(!iter.ShadowDOMInvolved()); |
| 9230 | |
| 9231 | if (aCanHaveGeneratedContent) { |
| 9232 | // Probe for generated content after |
| 9233 | CreateGeneratedContentItem(aState, aFrame, *aContent->AsElement(), |
| 9234 | *parentStyle, PseudoStyleType::After, |
| 9235 | itemsToConstruct); |
| 9236 | if (aContent->IsHTMLElement(nsGkAtoms::select)) { |
| 9237 | CreateGeneratedContentItem(aState, aFrame, *aContent->AsElement(), |
| 9238 | *parentStyle, PseudoStyleType::PickerIcon, |
| 9239 | itemsToConstruct); |
| 9240 | } |
| 9241 | } |
| 9242 | } else { |
| 9243 | ClearLazyBits(aContent->GetFirstChild(), nullptr); |
| 9244 | } |
| 9245 | |
| 9246 | ConstructFramesFromItemList(aState, itemsToConstruct, aFrame, |
| 9247 | /* aParentIsWrapperAnonBox = */ false, |
| 9248 | aFrameList); |
| 9249 | |
| 9250 | if (listItem) { |
| 9251 | if (auto* markerFrame = nsLayoutUtils::GetMarkerFrame(aContent)) { |
| 9252 | for (auto* childFrame : aFrameList) { |
| 9253 | if (markerFrame == childFrame) { |
| 9254 | if (isOutsideMarker) { |
| 9255 | // SetMarkerFrameForListItem will add childFrame to the marker list. |
| 9256 | aFrameList.RemoveFrame(childFrame); |
| 9257 | auto* grandParent = listItem->GetParent()->GetParent(); |
| 9258 | if (listItem->Style()->GetPseudoType() == |
| 9259 | PseudoStyleType::MozColumnContent && |
| 9260 | grandParent && grandParent->IsColumnSetWrapperFrame()) { |
| 9261 | listItem = do_QueryFrame(grandParent); |
| 9262 | MOZ_ASSERT(listItem,do { static_assert( mozilla::detail::AssertionConditionType< decltype(listItem)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(listItem))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("listItem" " (" "ColumnSetWrapperFrame is expected to be " "a nsBlockFrame subclass" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9264); AnnotateMozCrashReason("MOZ_ASSERT" "(" "listItem" ") (" "ColumnSetWrapperFrame is expected to be " "a nsBlockFrame subclass" ")"); do { MOZ_CrashSequence(__null, 9264); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 9263 | "ColumnSetWrapperFrame is expected to be "do { static_assert( mozilla::detail::AssertionConditionType< decltype(listItem)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(listItem))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("listItem" " (" "ColumnSetWrapperFrame is expected to be " "a nsBlockFrame subclass" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9264); AnnotateMozCrashReason("MOZ_ASSERT" "(" "listItem" ") (" "ColumnSetWrapperFrame is expected to be " "a nsBlockFrame subclass" ")"); do { MOZ_CrashSequence(__null, 9264); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 9264 | "a nsBlockFrame subclass")do { static_assert( mozilla::detail::AssertionConditionType< decltype(listItem)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(listItem))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("listItem" " (" "ColumnSetWrapperFrame is expected to be " "a nsBlockFrame subclass" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9264); AnnotateMozCrashReason("MOZ_ASSERT" "(" "listItem" ") (" "ColumnSetWrapperFrame is expected to be " "a nsBlockFrame subclass" ")"); do { MOZ_CrashSequence(__null, 9264); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9265 | childFrame->SetParent(listItem); |
| 9266 | } |
| 9267 | } |
| 9268 | listItem->SetMarkerFrameForListItem(childFrame); |
| 9269 | MOZ_ASSERT(listItem->HasOutsideMarker() == isOutsideMarker)do { static_assert( mozilla::detail::AssertionConditionType< decltype(listItem->HasOutsideMarker() == isOutsideMarker)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(listItem->HasOutsideMarker() == isOutsideMarker)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("listItem->HasOutsideMarker() == isOutsideMarker" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 9269); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "listItem->HasOutsideMarker() == isOutsideMarker" ")"); do { MOZ_CrashSequence(__null, 9269); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9270 | #ifdef ACCESSIBILITY1 |
| 9271 | if (nsAccessibilityService* accService = GetAccService()) { |
| 9272 | auto* marker = markerFrame->GetContent(); |
| 9273 | accService->ContentRangeInserted(mPresShell, marker, nullptr); |
| 9274 | } |
| 9275 | #endif |
| 9276 | break; |
| 9277 | } |
| 9278 | } |
| 9279 | } |
| 9280 | } |
| 9281 | |
| 9282 | if (haveFirstLetterStyle) { |
| 9283 | WrapFramesInFirstLetterFrame(aFrame, aFrameList); |
| 9284 | } |
| 9285 | if (haveFirstLineStyle) { |
| 9286 | WrapFramesInFirstLineFrame(aState, aContent, aFrame, nullptr, aFrameList); |
| 9287 | } |
| 9288 | } |
| 9289 | |
| 9290 | //---------------------------------------------------------------------- |
| 9291 | |
| 9292 | // Support for :first-line style |
| 9293 | |
| 9294 | // Special routine to handle placing a list of frames into a block |
| 9295 | // frame that has first-line style. The routine ensures that the first |
| 9296 | // collection of inline frames end up in a first-line frame. |
| 9297 | // NOTE: aState may have containing block information related to a |
| 9298 | // different part of the frame tree than where the first line occurs. |
| 9299 | // In particular aState may be set up for where ContentInserted or |
| 9300 | // ContentAppended is inserting content, which may be some |
| 9301 | // non-first-in-flow continuation of the block to which the first-line |
| 9302 | // belongs. So this function needs to be careful about how it uses |
| 9303 | // aState. |
| 9304 | void nsCSSFrameConstructor::WrapFramesInFirstLineFrame( |
| 9305 | nsFrameConstructorState& aState, nsIContent* aBlockContent, |
| 9306 | nsContainerFrame* aBlockFrame, nsFirstLineFrame* aLineFrame, |
| 9307 | nsFrameList& aFrameList) { |
| 9308 | // Extract any initial inline frames from aFrameList so we can put them |
| 9309 | // in the first-line. |
| 9310 | nsFrameList firstLineChildren = |
| 9311 | aFrameList.Split([](nsIFrame* f) { return !f->IsInlineOutside(); }); |
| 9312 | |
| 9313 | if (firstLineChildren.IsEmpty()) { |
| 9314 | // Nothing is supposed to go into the first-line; nothing to do |
| 9315 | return; |
| 9316 | } |
| 9317 | |
| 9318 | if (!aLineFrame) { |
| 9319 | // Create line frame |
| 9320 | ComputedStyle* parentStyle = nsIFrame::CorrectStyleParentFrame( |
| 9321 | aBlockFrame, PseudoStyleType::FirstLine) |
| 9322 | ->Style(); |
| 9323 | RefPtr<ComputedStyle> firstLineStyle = |
| 9324 | GetFirstLineStyle(aBlockContent, parentStyle); |
| 9325 | |
| 9326 | aLineFrame = NS_NewFirstLineFrame(mPresShell, firstLineStyle); |
| 9327 | |
| 9328 | // Initialize the line frame |
| 9329 | InitAndRestoreFrame(aState, aBlockContent, aBlockFrame, aLineFrame); |
| 9330 | |
| 9331 | // The lineFrame will be the block's first child; the rest of the |
| 9332 | // frame list (after lastInlineFrame) will be the second and |
| 9333 | // subsequent children; insert lineFrame into aFrameList. |
| 9334 | aFrameList.InsertFrame(nullptr, nullptr, aLineFrame); |
| 9335 | |
| 9336 | NS_ASSERTION(aLineFrame->Style() == firstLineStyle,do { if (!(aLineFrame->Style() == firstLineStyle)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Bogus style on line frame", "aLineFrame->Style() == firstLineStyle" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 9337); MOZ_PretendNoReturn (); } } while (0) |
| 9337 | "Bogus style on line frame")do { if (!(aLineFrame->Style() == firstLineStyle)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Bogus style on line frame", "aLineFrame->Style() == firstLineStyle" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 9337); MOZ_PretendNoReturn (); } } while (0); |
| 9338 | } |
| 9339 | |
| 9340 | // Give the inline frames to the lineFrame <b>after</b> reparenting them |
| 9341 | ReparentFrames(this, aLineFrame, firstLineChildren, true); |
| 9342 | if (aLineFrame->PrincipalChildList().IsEmpty() && |
| 9343 | aLineFrame->HasAnyStateBits(NS_FRAME_FIRST_REFLOW)) { |
| 9344 | aLineFrame->SetInitialChildList(FrameChildListID::Principal, |
| 9345 | std::move(firstLineChildren)); |
| 9346 | } else { |
| 9347 | AppendFrames(aLineFrame, FrameChildListID::Principal, |
| 9348 | std::move(firstLineChildren)); |
| 9349 | } |
| 9350 | } |
| 9351 | |
| 9352 | // Special routine to handle appending a new frame to a block frame's |
| 9353 | // child list. Takes care of placing the new frame into the right |
| 9354 | // place when first-line style is present. |
| 9355 | void nsCSSFrameConstructor::AppendFirstLineFrames( |
| 9356 | nsFrameConstructorState& aState, nsIContent* aBlockContent, |
| 9357 | nsContainerFrame* aBlockFrame, nsFrameList& aFrameList) { |
| 9358 | // It's possible that aBlockFrame needs to have a first-line frame |
| 9359 | // created because it doesn't currently have any children. |
| 9360 | const nsFrameList& blockKids = aBlockFrame->PrincipalChildList(); |
| 9361 | if (blockKids.IsEmpty()) { |
| 9362 | WrapFramesInFirstLineFrame(aState, aBlockContent, aBlockFrame, nullptr, |
| 9363 | aFrameList); |
| 9364 | return; |
| 9365 | } |
| 9366 | |
| 9367 | // Examine the last block child - if it's a first-line frame then |
| 9368 | // appended frames need special treatment. |
| 9369 | nsIFrame* lastBlockKid = blockKids.LastChild(); |
| 9370 | if (!lastBlockKid->IsLineFrame()) { |
| 9371 | // No first-line frame at the end of the list, therefore there is |
| 9372 | // an intervening block between any first-line frame the frames |
| 9373 | // we are appending. Therefore, we don't need any special |
| 9374 | // treatment of the appended frames. |
| 9375 | return; |
| 9376 | } |
| 9377 | |
| 9378 | nsFirstLineFrame* lineFrame = static_cast<nsFirstLineFrame*>(lastBlockKid); |
| 9379 | WrapFramesInFirstLineFrame(aState, aBlockContent, aBlockFrame, lineFrame, |
| 9380 | aFrameList); |
| 9381 | } |
| 9382 | |
| 9383 | void nsCSSFrameConstructor::CheckForFirstLineInsertion( |
| 9384 | nsIFrame* aParentFrame, nsFrameList& aFrameList) { |
| 9385 | MOZ_ASSERT(aParentFrame->Style()->IsInFirstLineSubtree(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParentFrame->Style()->IsInFirstLineSubtree()) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aParentFrame->Style()->IsInFirstLineSubtree()) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aParentFrame->Style()->IsInFirstLineSubtree()" " (" "Why were we called?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9386); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParentFrame->Style()->IsInFirstLineSubtree()" ") (" "Why were we called?" ")"); do { MOZ_CrashSequence(__null , 9386); __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 9386 | "Why were we called?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParentFrame->Style()->IsInFirstLineSubtree()) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aParentFrame->Style()->IsInFirstLineSubtree()) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aParentFrame->Style()->IsInFirstLineSubtree()" " (" "Why were we called?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9386); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParentFrame->Style()->IsInFirstLineSubtree()" ") (" "Why were we called?" ")"); do { MOZ_CrashSequence(__null , 9386); __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 9387 | |
| 9388 | if (aFrameList.IsEmpty()) { |
| 9389 | // Happens often enough, with the caption stuff. No need to do the ancestor |
| 9390 | // walk here. |
| 9391 | return; |
| 9392 | } |
| 9393 | |
| 9394 | class RestyleManager* restyleManager = RestyleManager(); |
| 9395 | |
| 9396 | // Check whether there's a ::first-line on the path up from aParentFrame. |
| 9397 | // Note that we can't stop until we've run out of ancestors with |
| 9398 | // pseudo-element data, because the first-letter might be somewhere way up the |
| 9399 | // tree; in particular it might be past our containing block. |
| 9400 | nsIFrame* ancestor = aParentFrame; |
| 9401 | while (ancestor) { |
| 9402 | if (!ancestor->Style()->IsInFirstLineSubtree()) { |
| 9403 | // We know we won't find a ::first-line now. |
| 9404 | return; |
| 9405 | } |
| 9406 | |
| 9407 | if (!ancestor->IsLineFrame()) { |
| 9408 | ancestor = ancestor->GetParent(); |
| 9409 | continue; |
| 9410 | } |
| 9411 | |
| 9412 | if (!ancestor->Style()->IsPseudoElement()) { |
| 9413 | // This is a continuation lineframe, not the first line; no need to do |
| 9414 | // anything to the styles. |
| 9415 | return; |
| 9416 | } |
| 9417 | |
| 9418 | // Fix up the styles of aFrameList for ::first-line. |
| 9419 | for (nsIFrame* f : aFrameList) { |
| 9420 | restyleManager->ReparentComputedStyleForFirstLine(f); |
| 9421 | } |
| 9422 | return; |
| 9423 | } |
| 9424 | } |
| 9425 | |
| 9426 | //---------------------------------------------------------------------- |
| 9427 | |
| 9428 | // First-letter support |
| 9429 | |
| 9430 | // Determine how many characters in the text fragment apply to the |
| 9431 | // first letter |
| 9432 | static int32_t FirstLetterCount( |
| 9433 | const CharacterDataBuffer* aCharacterDataBuffer) { |
| 9434 | int32_t count = 0; |
| 9435 | int32_t firstLetterLength = 0; |
| 9436 | |
| 9437 | const uint32_t n = aCharacterDataBuffer->GetLength(); |
| 9438 | for (uint32_t i = 0; i < n; i++) { |
| 9439 | const char16_t ch = aCharacterDataBuffer->CharAt(i); |
| 9440 | // FIXME: take content language into account when deciding whitespace. |
| 9441 | if (dom::IsSpaceCharacter(ch)) { |
| 9442 | if (firstLetterLength) { |
| 9443 | break; |
| 9444 | } |
| 9445 | count++; |
| 9446 | continue; |
| 9447 | } |
| 9448 | // XXX I18n |
| 9449 | if ((ch == '\'') || (ch == '\"')) { |
| 9450 | if (firstLetterLength) { |
| 9451 | break; |
| 9452 | } |
| 9453 | // keep looping |
| 9454 | firstLetterLength = 1; |
| 9455 | } else { |
| 9456 | count++; |
| 9457 | break; |
| 9458 | } |
| 9459 | } |
| 9460 | |
| 9461 | return count; |
| 9462 | } |
| 9463 | |
| 9464 | static bool NeedFirstLetterContinuation(Text* aText) { |
| 9465 | MOZ_ASSERT(aText, "null ptr")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aText)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aText))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("aText" " (" "null ptr" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 9465); AnnotateMozCrashReason ("MOZ_ASSERT" "(" "aText" ") (" "null ptr" ")"); do { MOZ_CrashSequence (__null, 9465); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 9466 | int32_t flc = FirstLetterCount(&aText->DataBuffer()); |
| 9467 | int32_t tl = aText->TextDataLength(); |
| 9468 | return flc < tl; |
| 9469 | } |
| 9470 | |
| 9471 | static bool IsFirstLetterContent(Text* aText) { |
| 9472 | return aText->TextDataLength() && !aText->TextIsOnlyWhitespace(); |
| 9473 | } |
| 9474 | |
| 9475 | /** |
| 9476 | * Create a letter frame, only make it a floating frame. |
| 9477 | */ |
| 9478 | nsFirstLetterFrame* nsCSSFrameConstructor::CreateFloatingLetterFrame( |
| 9479 | nsFrameConstructorState& aState, Text* aTextContent, nsIFrame* aTextFrame, |
| 9480 | nsContainerFrame* aParentFrame, ComputedStyle* aParentStyle, |
| 9481 | ComputedStyle* aComputedStyle, nsFrameList& aResult) { |
| 9482 | MOZ_ASSERT(aParentStyle)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParentStyle)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParentStyle))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aParentStyle", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9482); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParentStyle" ")"); do { MOZ_CrashSequence(__null, 9482); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9483 | |
| 9484 | nsFirstLetterFrame* letterFrame = |
| 9485 | NS_NewFloatingFirstLetterFrame(mPresShell, aComputedStyle); |
| 9486 | // We don't want to use a text content for a non-text frame (because we want |
| 9487 | // its primary frame to be a text frame). |
| 9488 | nsIContent* letterContent = aParentFrame->GetContent(); |
| 9489 | nsContainerFrame* containingBlock = |
| 9490 | aState.GetGeometricParent(*aComputedStyle->StyleDisplay(), aParentFrame); |
| 9491 | InitAndRestoreFrame(aState, letterContent, containingBlock, letterFrame); |
| 9492 | |
| 9493 | // Init the text frame to refer to the letter frame. |
| 9494 | // |
| 9495 | // Make sure we get a proper style for it (the one passed in is for the letter |
| 9496 | // frame and will have the float property set on it; the text frame shouldn't |
| 9497 | // have that set). |
| 9498 | ServoStyleSet* styleSet = mPresShell->StyleSet(); |
| 9499 | RefPtr<ComputedStyle> textSC = |
| 9500 | styleSet->ResolveStyleForText(aTextContent, aComputedStyle); |
| 9501 | aTextFrame->SetComputedStyleWithoutNotification(textSC); |
| 9502 | InitAndRestoreFrame(aState, aTextContent, letterFrame, aTextFrame); |
| 9503 | |
| 9504 | // And then give the text frame to the letter frame |
| 9505 | SetInitialSingleChild(letterFrame, aTextFrame); |
| 9506 | |
| 9507 | // See if we will need to continue the text frame (does it contain |
| 9508 | // more than just the first-letter text or not?) If it does, then we |
| 9509 | // create (in advance) a continuation frame for it. |
| 9510 | nsIFrame* nextTextFrame = nullptr; |
| 9511 | if (NeedFirstLetterContinuation(aTextContent)) { |
| 9512 | // Create continuation |
| 9513 | nextTextFrame = CreateContinuingFrame(aTextFrame, aParentFrame); |
| 9514 | RefPtr<ComputedStyle> newSC = |
| 9515 | styleSet->ResolveStyleForText(aTextContent, aParentStyle); |
| 9516 | nextTextFrame->SetComputedStyle(newSC); |
| 9517 | } |
| 9518 | |
| 9519 | NS_ASSERTION(aResult.IsEmpty(), "aResult should be an empty nsFrameList!")do { if (!(aResult.IsEmpty())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "aResult should be an empty nsFrameList!", "aResult.IsEmpty()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 9519); MOZ_PretendNoReturn (); } } while (0); |
| 9520 | // Put the new float before any of the floats in the block we're doing |
| 9521 | // first-letter for, that is, before any floats whose parent is |
| 9522 | // containingBlock. |
| 9523 | nsIFrame* prevSibling = nullptr; |
| 9524 | for (nsIFrame* f : aState.mFloatedList) { |
| 9525 | if (f->GetParent() == containingBlock) { |
| 9526 | break; |
| 9527 | } |
| 9528 | prevSibling = f; |
| 9529 | } |
| 9530 | |
| 9531 | aState.AddChild(letterFrame, aResult, letterContent, aParentFrame, false, |
| 9532 | true, true, prevSibling); |
| 9533 | |
| 9534 | if (nextTextFrame) { |
| 9535 | aResult.AppendFrame(nullptr, nextTextFrame); |
| 9536 | } |
| 9537 | |
| 9538 | return letterFrame; |
| 9539 | } |
| 9540 | |
| 9541 | /** |
| 9542 | * Create a new letter frame for aTextFrame. The letter frame will be |
| 9543 | * a child of aParentFrame. |
| 9544 | */ |
| 9545 | void nsCSSFrameConstructor::CreateLetterFrame( |
| 9546 | nsContainerFrame* aBlockFrame, nsContainerFrame* aBlockContinuation, |
| 9547 | Text* aTextContent, nsContainerFrame* aParentFrame, nsFrameList& aResult) { |
| 9548 | NS_ASSERTION(aBlockFrame->IsBlockFrameOrSubclass(), "Not a block frame?")do { if (!(aBlockFrame->IsBlockFrameOrSubclass())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Not a block frame?", "aBlockFrame->IsBlockFrameOrSubclass()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 9548); MOZ_PretendNoReturn (); } } while (0); |
| 9549 | |
| 9550 | // Get a ComputedStyle for the first-letter-frame. |
| 9551 | // |
| 9552 | // Keep this in sync with nsBlockFrame::UpdatePseudoElementStyles. |
| 9553 | nsIFrame* parentFrame = nsIFrame::CorrectStyleParentFrame( |
| 9554 | aParentFrame, PseudoStyleType::FirstLetter); |
| 9555 | |
| 9556 | ComputedStyle* parentComputedStyle = parentFrame->Style(); |
| 9557 | ComputedStyle* parentComputedStyleIgnoringFirstLine = parentComputedStyle; |
| 9558 | if (parentFrame->IsLineFrame()) { |
| 9559 | parentComputedStyleIgnoringFirstLine = |
| 9560 | nsIFrame::CorrectStyleParentFrame(aBlockFrame, |
| 9561 | PseudoStyleType::FirstLetter) |
| 9562 | ->Style(); |
| 9563 | } |
| 9564 | |
| 9565 | // Use content from containing block so that we can actually |
| 9566 | // find a matching style rule. |
| 9567 | nsIContent* blockContent = aBlockFrame->GetContent(); |
| 9568 | |
| 9569 | // Create first-letter style rule, ignoring first line. If we already have a |
| 9570 | // first-line we'll reparent the style below. |
| 9571 | RefPtr<ComputedStyle> sc = |
| 9572 | GetFirstLetterStyle(blockContent, parentComputedStyleIgnoringFirstLine); |
| 9573 | |
| 9574 | if (sc) { |
| 9575 | if (parentComputedStyleIgnoringFirstLine != parentComputedStyle) { |
| 9576 | sc = mPresShell->StyleSet()->ReparentComputedStyle( |
| 9577 | sc, parentComputedStyle, parentComputedStyle, |
| 9578 | blockContent->AsElement()); |
| 9579 | } |
| 9580 | |
| 9581 | RefPtr<ComputedStyle> textSC = |
| 9582 | mPresShell->StyleSet()->ResolveStyleForText(aTextContent, sc); |
| 9583 | |
| 9584 | // Create a new text frame (the original one will be discarded) |
| 9585 | // pass a temporary stylecontext, the correct one will be set |
| 9586 | // later. Start off by unsetting the primary frame for |
| 9587 | // aTextContent, so it's no longer pointing to the to-be-destroyed |
| 9588 | // frame. |
| 9589 | // XXXbz it would be really nice to destroy the old frame _first_, |
| 9590 | // then create the new one, so we could avoid this hack. |
| 9591 | aTextContent->SetPrimaryFrame(nullptr); |
| 9592 | nsIFrame* textFrame = NS_NewTextFrame(mPresShell, textSC); |
| 9593 | |
| 9594 | NS_ASSERTION(aBlockContinuation == GetFloatContainingBlock(aParentFrame),do { if (!(aBlockContinuation == GetFloatContainingBlock(aParentFrame ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Containing block is confused" , "aBlockContinuation == GetFloatContainingBlock(aParentFrame)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 9595); MOZ_PretendNoReturn (); } } while (0) |
| 9595 | "Containing block is confused")do { if (!(aBlockContinuation == GetFloatContainingBlock(aParentFrame ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Containing block is confused" , "aBlockContinuation == GetFloatContainingBlock(aParentFrame)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 9595); MOZ_PretendNoReturn (); } } while (0); |
| 9596 | nsFrameConstructorState state( |
| 9597 | mPresShell, GetAbsoluteContainingBlock(aParentFrame, FIXED_POS), |
| 9598 | GetAbsoluteContainingBlock(aParentFrame, ABS_POS), aBlockContinuation); |
| 9599 | |
| 9600 | // Create the right type of first-letter frame |
| 9601 | const nsStyleDisplay* display = sc->StyleDisplay(); |
| 9602 | nsFirstLetterFrame* letterFrame; |
| 9603 | if (display->IsFloatingStyle() && !aParentFrame->IsInSVGTextSubtree()) { |
| 9604 | // Make a floating first-letter frame |
| 9605 | letterFrame = CreateFloatingLetterFrame(state, aTextContent, textFrame, |
| 9606 | aParentFrame, parentComputedStyle, |
| 9607 | sc, aResult); |
| 9608 | } else { |
| 9609 | // Make an inflow first-letter frame |
| 9610 | letterFrame = NS_NewFirstLetterFrame(mPresShell, sc); |
| 9611 | |
| 9612 | // Initialize the first-letter-frame. We don't want to use a text |
| 9613 | // content for a non-text frame (because we want its primary frame to |
| 9614 | // be a text frame). |
| 9615 | nsIContent* letterContent = aParentFrame->GetContent(); |
| 9616 | letterFrame->Init(letterContent, aParentFrame, nullptr); |
| 9617 | |
| 9618 | InitAndRestoreFrame(state, aTextContent, letterFrame, textFrame); |
| 9619 | |
| 9620 | SetInitialSingleChild(letterFrame, textFrame); |
| 9621 | aResult.Clear(); |
| 9622 | aResult.AppendFrame(nullptr, letterFrame); |
| 9623 | NS_ASSERTION(!aBlockFrame->GetPrevContinuation(),do { if (!(!aBlockFrame->GetPrevContinuation())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "should have the first continuation here" , "!aBlockFrame->GetPrevContinuation()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9624); MOZ_PretendNoReturn(); } } while (0) |
| 9624 | "should have the first continuation here")do { if (!(!aBlockFrame->GetPrevContinuation())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "should have the first continuation here" , "!aBlockFrame->GetPrevContinuation()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9624); MOZ_PretendNoReturn(); } } while (0); |
| 9625 | aBlockFrame->AddStateBits(NS_BLOCK_HAS_FIRST_LETTER_CHILD); |
| 9626 | } |
| 9627 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aBlockFrame->GetPrevContinuation())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!aBlockFrame->GetPrevContinuation()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aBlockFrame->GetPrevContinuation()" " (" "Setting up a first-letter frame on a non-first block continuation?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9629 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aBlockFrame->GetPrevContinuation()" ") (" "Setting up a first-letter frame on a non-first block continuation?" ")"); do { MOZ_CrashSequence(__null, 9629); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 9628 | !aBlockFrame->GetPrevContinuation(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aBlockFrame->GetPrevContinuation())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!aBlockFrame->GetPrevContinuation()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aBlockFrame->GetPrevContinuation()" " (" "Setting up a first-letter frame on a non-first block continuation?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9629 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aBlockFrame->GetPrevContinuation()" ") (" "Setting up a first-letter frame on a non-first block continuation?" ")"); do { MOZ_CrashSequence(__null, 9629); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 9629 | "Setting up a first-letter frame on a non-first block continuation?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aBlockFrame->GetPrevContinuation())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!aBlockFrame->GetPrevContinuation()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aBlockFrame->GetPrevContinuation()" " (" "Setting up a first-letter frame on a non-first block continuation?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 9629 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aBlockFrame->GetPrevContinuation()" ") (" "Setting up a first-letter frame on a non-first block continuation?" ")"); do { MOZ_CrashSequence(__null, 9629); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9630 | auto parent = |
| 9631 | static_cast<nsContainerFrame*>(aParentFrame->FirstContinuation()); |
| 9632 | if (MOZ_UNLIKELY(parent->IsLineFrame())(__builtin_expect(!!(parent->IsLineFrame()), 0))) { |
| 9633 | parent = static_cast<nsContainerFrame*>( |
| 9634 | parent->GetParent()->FirstContinuation()); |
| 9635 | } |
| 9636 | parent->SetHasFirstLetterChild(); |
| 9637 | aBlockFrame->SetProperty(nsContainerFrame::FirstLetterProperty(), |
| 9638 | letterFrame); |
| 9639 | aTextContent->SetPrimaryFrame(textFrame); |
| 9640 | } |
| 9641 | } |
| 9642 | |
| 9643 | void nsCSSFrameConstructor::WrapFramesInFirstLetterFrame( |
| 9644 | nsContainerFrame* aBlockFrame, nsFrameList& aBlockFrames) { |
| 9645 | aBlockFrame->AddStateBits(NS_BLOCK_HAS_FIRST_LETTER_STYLE); |
| 9646 | |
| 9647 | nsContainerFrame* parentFrame = nullptr; |
| 9648 | nsIFrame* textFrame = nullptr; |
| 9649 | nsIFrame* prevFrame = nullptr; |
| 9650 | nsFrameList letterFrames; |
| 9651 | bool stopLooking = false; |
| 9652 | WrapFramesInFirstLetterFrame( |
| 9653 | aBlockFrame, aBlockFrame, aBlockFrame, aBlockFrames.FirstChild(), |
| 9654 | &parentFrame, &textFrame, &prevFrame, letterFrames, &stopLooking); |
| 9655 | if (!parentFrame) { |
| 9656 | return; |
| 9657 | } |
| 9658 | DestroyContext context(mPresShell); |
| 9659 | if (parentFrame == aBlockFrame) { |
| 9660 | // Take textFrame out of the block's frame list and substitute the |
| 9661 | // letter frame(s) instead. |
| 9662 | aBlockFrames.DestroyFrame(context, textFrame); |
| 9663 | aBlockFrames.InsertFrames(nullptr, prevFrame, std::move(letterFrames)); |
| 9664 | } else { |
| 9665 | // Take the old textFrame out of the inline parent's child list |
| 9666 | RemoveFrame(context, FrameChildListID::Principal, textFrame); |
| 9667 | |
| 9668 | // Insert in the letter frame(s) |
| 9669 | parentFrame->InsertFrames(FrameChildListID::Principal, prevFrame, nullptr, |
| 9670 | std::move(letterFrames)); |
| 9671 | } |
| 9672 | } |
| 9673 | |
| 9674 | void nsCSSFrameConstructor::WrapFramesInFirstLetterFrame( |
| 9675 | nsContainerFrame* aBlockFrame, nsContainerFrame* aBlockContinuation, |
| 9676 | nsContainerFrame* aParentFrame, nsIFrame* aParentFrameList, |
| 9677 | nsContainerFrame** aModifiedParent, nsIFrame** aTextFrame, |
| 9678 | nsIFrame** aPrevFrame, nsFrameList& aLetterFrames, bool* aStopLooking) { |
| 9679 | nsIFrame* prevFrame = nullptr; |
| 9680 | nsIFrame* frame = aParentFrameList; |
| 9681 | |
| 9682 | // This loop attempts to implement "Finding the First Letter": |
| 9683 | // https://drafts.csswg.org/css-pseudo-4/#application-in-css |
| 9684 | // FIXME: we don't handle nested blocks correctly yet though (bug 214004) |
| 9685 | while (frame) { |
| 9686 | nsIFrame* nextFrame = frame->GetNextSibling(); |
| 9687 | |
| 9688 | // Skip all ::markers and placeholders. |
| 9689 | if (frame->Style()->GetPseudoType() == PseudoStyleType::Marker || |
| 9690 | frame->IsPlaceholderFrame()) { |
| 9691 | prevFrame = frame; |
| 9692 | frame = nextFrame; |
| 9693 | continue; |
| 9694 | } |
| 9695 | LayoutFrameType frameType = frame->Type(); |
| 9696 | if (LayoutFrameType::Text == frameType) { |
| 9697 | // Wrap up first-letter content in a letter frame |
| 9698 | Text* textContent = frame->GetContent()->AsText(); |
| 9699 | if (IsFirstLetterContent(textContent)) { |
| 9700 | // Create letter frame to wrap up the text |
| 9701 | CreateLetterFrame(aBlockFrame, aBlockContinuation, textContent, |
| 9702 | aParentFrame, aLetterFrames); |
| 9703 | |
| 9704 | // Provide adjustment information for parent |
| 9705 | *aModifiedParent = aParentFrame; |
| 9706 | *aTextFrame = frame; |
| 9707 | *aPrevFrame = prevFrame; |
| 9708 | *aStopLooking = true; |
| 9709 | return; |
| 9710 | } |
| 9711 | } else if (IsInlineFrame(frame) && frameType != LayoutFrameType::Br) { |
| 9712 | nsIFrame* kids = frame->PrincipalChildList().FirstChild(); |
| 9713 | WrapFramesInFirstLetterFrame(aBlockFrame, aBlockContinuation, |
| 9714 | static_cast<nsContainerFrame*>(frame), kids, |
| 9715 | aModifiedParent, aTextFrame, aPrevFrame, |
| 9716 | aLetterFrames, aStopLooking); |
| 9717 | if (*aStopLooking) { |
| 9718 | return; |
| 9719 | } |
| 9720 | } else { |
| 9721 | // This will stop us looking to create more letter frames. For |
| 9722 | // example, maybe the frame-type is "letterFrame" or |
| 9723 | // "placeholderFrame". This keeps us from creating extra letter |
| 9724 | // frames, and also prevents us from creating letter frames when |
| 9725 | // the first real content child of a block is not text (e.g. an |
| 9726 | // image, hr, etc.) |
| 9727 | *aStopLooking = true; |
| 9728 | break; |
| 9729 | } |
| 9730 | |
| 9731 | prevFrame = frame; |
| 9732 | frame = nextFrame; |
| 9733 | } |
| 9734 | } |
| 9735 | |
| 9736 | static nsIFrame* FindFirstLetterFrame(nsIFrame* aFrame, |
| 9737 | FrameChildListID aListID) { |
| 9738 | for (nsIFrame* f : aFrame->GetChildList(aListID)) { |
| 9739 | if (f->IsLetterFrame()) { |
| 9740 | return f; |
| 9741 | } |
| 9742 | } |
| 9743 | return nullptr; |
| 9744 | } |
| 9745 | |
| 9746 | static void ClearHasFirstLetterChildFrom(nsContainerFrame* aParentFrame) { |
| 9747 | MOZ_ASSERT(aParentFrame)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParentFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParentFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aParentFrame", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9747); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParentFrame" ")"); do { MOZ_CrashSequence(__null, 9747); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9748 | auto* parent = |
| 9749 | static_cast<nsContainerFrame*>(aParentFrame->FirstContinuation()); |
| 9750 | if (MOZ_UNLIKELY(parent->IsLineFrame())(__builtin_expect(!!(parent->IsLineFrame()), 0))) { |
| 9751 | MOZ_ASSERT(!parent->HasFirstLetterChild())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!parent->HasFirstLetterChild())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!parent->HasFirstLetterChild ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!parent->HasFirstLetterChild()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9751); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!parent->HasFirstLetterChild()" ")"); do { MOZ_CrashSequence(__null, 9751); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9752 | parent = static_cast<nsContainerFrame*>( |
| 9753 | parent->GetParent()->FirstContinuation()); |
| 9754 | } |
| 9755 | MOZ_ASSERT(parent->HasFirstLetterChild())do { static_assert( mozilla::detail::AssertionConditionType< decltype(parent->HasFirstLetterChild())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(parent->HasFirstLetterChild ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("parent->HasFirstLetterChild()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9755); AnnotateMozCrashReason("MOZ_ASSERT" "(" "parent->HasFirstLetterChild()" ")"); do { MOZ_CrashSequence(__null, 9755); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9756 | parent->ClearHasFirstLetterChild(); |
| 9757 | } |
| 9758 | |
| 9759 | void nsCSSFrameConstructor::RemoveFloatingFirstLetterFrames( |
| 9760 | PresShell* aPresShell, nsIFrame* aBlockFrame) { |
| 9761 | // Look for the first letter frame on the FrameChildListID::Float, then |
| 9762 | // FrameChildListID::PushedFloats. |
| 9763 | nsIFrame* floatFrame = |
| 9764 | ::FindFirstLetterFrame(aBlockFrame, FrameChildListID::Float); |
| 9765 | if (!floatFrame) { |
| 9766 | floatFrame = |
| 9767 | ::FindFirstLetterFrame(aBlockFrame, FrameChildListID::PushedFloats); |
| 9768 | if (!floatFrame) { |
| 9769 | return; |
| 9770 | } |
| 9771 | } |
| 9772 | |
| 9773 | // Take the text frame away from the letter frame (so it isn't |
| 9774 | // destroyed when we destroy the letter frame). |
| 9775 | nsIFrame* textFrame = floatFrame->PrincipalChildList().FirstChild(); |
| 9776 | if (!textFrame) { |
| 9777 | return; |
| 9778 | } |
| 9779 | |
| 9780 | // Discover the placeholder frame for the letter frame |
| 9781 | nsPlaceholderFrame* placeholderFrame = floatFrame->GetPlaceholderFrame(); |
| 9782 | if (!placeholderFrame) { |
| 9783 | // Somethings really wrong |
| 9784 | return; |
| 9785 | } |
| 9786 | nsContainerFrame* parentFrame = placeholderFrame->GetParent(); |
| 9787 | if (!parentFrame) { |
| 9788 | // Somethings really wrong |
| 9789 | return; |
| 9790 | } |
| 9791 | |
| 9792 | ClearHasFirstLetterChildFrom(parentFrame); |
| 9793 | |
| 9794 | // Create a new text frame with the right style that maps all of the content |
| 9795 | // that was previously part of the letter frame (and probably continued |
| 9796 | // elsewhere). |
| 9797 | ComputedStyle* parentSC = parentFrame->Style(); |
| 9798 | nsIContent* textContent = textFrame->GetContent(); |
| 9799 | if (!textContent) { |
| 9800 | return; |
| 9801 | } |
| 9802 | RefPtr<ComputedStyle> newSC = |
| 9803 | aPresShell->StyleSet()->ResolveStyleForText(textContent, parentSC); |
| 9804 | nsIFrame* newTextFrame = NS_NewTextFrame(aPresShell, newSC); |
| 9805 | newTextFrame->Init(textContent, parentFrame, nullptr); |
| 9806 | |
| 9807 | // Destroy the old text frame's continuations (the old text frame |
| 9808 | // will be destroyed when its letter frame is destroyed). |
| 9809 | nsIFrame* frameToDelete = textFrame->LastContinuation(); |
| 9810 | DestroyContext context(mPresShell); |
| 9811 | while (frameToDelete != textFrame) { |
| 9812 | nsIFrame* nextFrameToDelete = frameToDelete->GetPrevContinuation(); |
| 9813 | RemoveFrame(context, FrameChildListID::Principal, frameToDelete); |
| 9814 | frameToDelete = nextFrameToDelete; |
| 9815 | } |
| 9816 | |
| 9817 | nsIFrame* prevSibling = placeholderFrame->GetPrevSibling(); |
| 9818 | |
| 9819 | // Now that everything is set... |
| 9820 | #ifdef NOISY_FIRST_LETTER |
| 9821 | printf( |
| 9822 | "RemoveFloatingFirstLetterFrames: textContent=%p oldTextFrame=%p " |
| 9823 | "newTextFrame=%p\n", |
| 9824 | textContent.get(), textFrame, newTextFrame); |
| 9825 | #endif |
| 9826 | |
| 9827 | // Remove placeholder frame and the float |
| 9828 | RemoveFrame(context, FrameChildListID::Principal, placeholderFrame); |
| 9829 | |
| 9830 | // Now that the old frames are gone, we can start pointing to our |
| 9831 | // new primary frame. |
| 9832 | textContent->SetPrimaryFrame(newTextFrame); |
| 9833 | |
| 9834 | // Wallpaper bug 822910. |
| 9835 | bool offsetsNeedFixing = prevSibling && prevSibling->IsTextFrame(); |
| 9836 | if (offsetsNeedFixing) { |
| 9837 | prevSibling->AddStateBits(TEXT_OFFSETS_NEED_FIXING); |
| 9838 | } |
| 9839 | |
| 9840 | // Insert text frame in its place |
| 9841 | InsertFrames(parentFrame, FrameChildListID::Principal, prevSibling, |
| 9842 | nsFrameList(newTextFrame, newTextFrame)); |
| 9843 | |
| 9844 | if (offsetsNeedFixing) { |
| 9845 | prevSibling->RemoveStateBits(TEXT_OFFSETS_NEED_FIXING); |
| 9846 | } |
| 9847 | } |
| 9848 | |
| 9849 | void nsCSSFrameConstructor::RemoveFirstLetterFrames( |
| 9850 | PresShell* aPresShell, nsContainerFrame* aFrame, |
| 9851 | nsContainerFrame* aBlockFrame, bool* aStopLooking) { |
| 9852 | nsIFrame* prevSibling = nullptr; |
| 9853 | nsIFrame* kid = aFrame->PrincipalChildList().FirstChild(); |
| 9854 | |
| 9855 | while (kid) { |
| 9856 | if (kid->IsLetterFrame()) { |
| 9857 | ClearHasFirstLetterChildFrom(aFrame); |
| 9858 | nsIFrame* textFrame = kid->PrincipalChildList().FirstChild(); |
| 9859 | if (!textFrame) { |
| 9860 | break; |
| 9861 | } |
| 9862 | |
| 9863 | // Create a new textframe |
| 9864 | ComputedStyle* parentSC = aFrame->Style(); |
| 9865 | if (!parentSC) { |
| 9866 | break; |
| 9867 | } |
| 9868 | nsIContent* textContent = textFrame->GetContent(); |
| 9869 | if (!textContent) { |
| 9870 | break; |
| 9871 | } |
| 9872 | RefPtr<ComputedStyle> newSC = |
| 9873 | aPresShell->StyleSet()->ResolveStyleForText(textContent, parentSC); |
| 9874 | textFrame = NS_NewTextFrame(aPresShell, newSC); |
| 9875 | textFrame->Init(textContent, aFrame, nullptr); |
| 9876 | |
| 9877 | DestroyContext context(mPresShell); |
| 9878 | |
| 9879 | // Next rip out the kid and replace it with the text frame |
| 9880 | RemoveFrame(context, FrameChildListID::Principal, kid); |
| 9881 | |
| 9882 | // Now that the old frames are gone, we can start pointing to our |
| 9883 | // new primary frame. |
| 9884 | textContent->SetPrimaryFrame(textFrame); |
| 9885 | |
| 9886 | // Wallpaper bug 822910. |
| 9887 | bool offsetsNeedFixing = prevSibling && prevSibling->IsTextFrame(); |
| 9888 | if (offsetsNeedFixing) { |
| 9889 | prevSibling->AddStateBits(TEXT_OFFSETS_NEED_FIXING); |
| 9890 | } |
| 9891 | |
| 9892 | // Insert text frame in its place |
| 9893 | InsertFrames(aFrame, FrameChildListID::Principal, prevSibling, |
| 9894 | nsFrameList(textFrame, textFrame)); |
| 9895 | |
| 9896 | if (offsetsNeedFixing) { |
| 9897 | prevSibling->RemoveStateBits(TEXT_OFFSETS_NEED_FIXING); |
| 9898 | } |
| 9899 | |
| 9900 | *aStopLooking = true; |
| 9901 | NS_ASSERTION(!aBlockFrame->GetPrevContinuation(),do { if (!(!aBlockFrame->GetPrevContinuation())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "should have the first continuation here" , "!aBlockFrame->GetPrevContinuation()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9902); MOZ_PretendNoReturn(); } } while (0) |
| 9902 | "should have the first continuation here")do { if (!(!aBlockFrame->GetPrevContinuation())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "should have the first continuation here" , "!aBlockFrame->GetPrevContinuation()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 9902); MOZ_PretendNoReturn(); } } while (0); |
| 9903 | aBlockFrame->RemoveStateBits(NS_BLOCK_HAS_FIRST_LETTER_CHILD); |
| 9904 | break; |
| 9905 | } |
| 9906 | if (IsInlineFrame(kid)) { |
| 9907 | nsContainerFrame* kidAsContainerFrame = do_QueryFrame(kid); |
| 9908 | if (kidAsContainerFrame) { |
| 9909 | // Look inside child inline frame for the letter frame. |
| 9910 | RemoveFirstLetterFrames(aPresShell, kidAsContainerFrame, aBlockFrame, |
| 9911 | aStopLooking); |
| 9912 | if (*aStopLooking) { |
| 9913 | break; |
| 9914 | } |
| 9915 | } |
| 9916 | } |
| 9917 | prevSibling = kid; |
| 9918 | kid = kid->GetNextSibling(); |
| 9919 | } |
| 9920 | } |
| 9921 | |
| 9922 | void nsCSSFrameConstructor::RemoveLetterFrames(PresShell* aPresShell, |
| 9923 | nsContainerFrame* aBlockFrame) { |
| 9924 | aBlockFrame = |
| 9925 | static_cast<nsContainerFrame*>(aBlockFrame->FirstContinuation()); |
| 9926 | aBlockFrame->RemoveProperty(nsContainerFrame::FirstLetterProperty()); |
| 9927 | nsContainerFrame* continuation = aBlockFrame; |
| 9928 | |
| 9929 | bool stopLooking = false; |
| 9930 | do { |
| 9931 | RemoveFloatingFirstLetterFrames(aPresShell, continuation); |
| 9932 | RemoveFirstLetterFrames(aPresShell, continuation, aBlockFrame, |
| 9933 | &stopLooking); |
| 9934 | if (stopLooking) { |
| 9935 | break; |
| 9936 | } |
| 9937 | continuation = |
| 9938 | static_cast<nsContainerFrame*>(continuation->GetNextContinuation()); |
| 9939 | } while (continuation); |
| 9940 | } |
| 9941 | |
| 9942 | // Fixup the letter frame situation for the given block |
| 9943 | void nsCSSFrameConstructor::RecoverLetterFrames(nsContainerFrame* aBlockFrame) { |
| 9944 | aBlockFrame = |
| 9945 | static_cast<nsContainerFrame*>(aBlockFrame->FirstContinuation()); |
| 9946 | nsContainerFrame* continuation = aBlockFrame; |
| 9947 | |
| 9948 | nsContainerFrame* parentFrame = nullptr; |
| 9949 | nsIFrame* textFrame = nullptr; |
| 9950 | nsIFrame* prevFrame = nullptr; |
| 9951 | nsFrameList letterFrames; |
| 9952 | bool stopLooking = false; |
| 9953 | do { |
| 9954 | // XXX shouldn't this bit be set already (bug 408493), assert instead? |
| 9955 | continuation->AddStateBits(NS_BLOCK_HAS_FIRST_LETTER_STYLE); |
| 9956 | WrapFramesInFirstLetterFrame( |
| 9957 | aBlockFrame, continuation, continuation, |
| 9958 | continuation->PrincipalChildList().FirstChild(), &parentFrame, |
| 9959 | &textFrame, &prevFrame, letterFrames, &stopLooking); |
| 9960 | if (stopLooking) { |
| 9961 | break; |
| 9962 | } |
| 9963 | continuation = |
| 9964 | static_cast<nsContainerFrame*>(continuation->GetNextContinuation()); |
| 9965 | } while (continuation); |
| 9966 | |
| 9967 | if (!parentFrame) { |
| 9968 | return; |
| 9969 | } |
| 9970 | // Take the old textFrame out of the parent's child list |
| 9971 | DestroyContext context(mPresShell); |
| 9972 | RemoveFrame(context, FrameChildListID::Principal, textFrame); |
| 9973 | |
| 9974 | // Insert in the letter frame(s) |
| 9975 | parentFrame->InsertFrames(FrameChildListID::Principal, prevFrame, nullptr, |
| 9976 | std::move(letterFrames)); |
| 9977 | } |
| 9978 | |
| 9979 | //---------------------------------------------------------------------- |
| 9980 | |
| 9981 | void nsCSSFrameConstructor::ConstructBlock( |
| 9982 | nsFrameConstructorState& aState, nsIContent* aContent, |
| 9983 | nsContainerFrame* aParentFrame, nsContainerFrame* aContentParentFrame, |
| 9984 | ComputedStyle* aComputedStyle, nsContainerFrame** aNewFrame, |
| 9985 | nsFrameList& aFrameList, nsIFrame* aPositionedFrameForAbsPosContainer) { |
| 9986 | // clang-format off |
| 9987 | // |
| 9988 | // If a block frame is in a multi-column subtree, its children may need to |
| 9989 | // be chopped into runs of blocks containing column-spans and runs of |
| 9990 | // blocks containing no column-spans. Each run containing column-spans |
| 9991 | // will be wrapped by an anonymous block. See CreateColumnSpanSiblings() for |
| 9992 | // the implementation. |
| 9993 | // |
| 9994 | // If a block frame is a multi-column container, its children will need to |
| 9995 | // be processed as above. Moreover, it creates a ColumnSetWrapperFrame as |
| 9996 | // its outermost frame, and its children which have no |
| 9997 | // -moz-column-span-wrapper pseudo will be wrapped in ColumnSetFrames. See |
| 9998 | // FinishBuildingColumns() for the implementation. |
| 9999 | // |
| 10000 | // The multi-column subtree maintains the following invariants: |
| 10001 | // |
| 10002 | // 1) All the frames have the frame state bit |
| 10003 | // NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR set, except for top-level |
| 10004 | // ColumnSetWrapperFrame and those children in the column-span subtrees. |
| 10005 | // |
| 10006 | // 2) The first and last frame under ColumnSetWrapperFrame are always |
| 10007 | // ColumnSetFrame. |
| 10008 | // |
| 10009 | // 3) ColumnSetFrames are linked together as continuations. |
| 10010 | // |
| 10011 | // 4) Those column-span wrappers are *not* linked together with themselves nor |
| 10012 | // with the original block frame. The continuation chain consists of the |
| 10013 | // original block frame and the original block's continuations wrapping |
| 10014 | // non-column-spans. |
| 10015 | // |
| 10016 | // For example, this HTML |
| 10017 | // <div id="x" style="column-count: 2;"> |
| 10018 | // <div style="column-span: all">a</div> |
| 10019 | // <div id="y"> |
| 10020 | // b |
| 10021 | // <div style="column-span: all">c</div> |
| 10022 | // <div style="column-span: all">d</div> |
| 10023 | // e |
| 10024 | // </div> |
| 10025 | // </div> |
| 10026 | // <div style="column-span: all">f</div> |
| 10027 | // |
| 10028 | // yields the following frame tree. |
| 10029 | // |
| 10030 | // A) ColumnSetWrapper (original style) |
| 10031 | // B) ColumnSet (-moz-column-set) <-- always created by BeginBuildingColumns |
| 10032 | // C) Block (-moz-column-content) |
| 10033 | // D) Block (-moz-column-span-wrapper, created by x) |
| 10034 | // E) Block (div) |
| 10035 | // F) Text ("a") |
| 10036 | // G) ColumnSet (-moz-column-set) |
| 10037 | // H) Block (-moz-column-content, created by x) |
| 10038 | // I) Block (div, y) |
| 10039 | // J) Text ("b") |
| 10040 | // K) Block (-moz-column-span-wrapper, created by x) |
| 10041 | // L) Block (-moz-column-span-wrapper, created by y) |
| 10042 | // M) Block (div, new BFC) |
| 10043 | // N) Text ("c") |
| 10044 | // O) Block (div, new BFC) |
| 10045 | // P) Text ("d") |
| 10046 | // Q) ColumnSet (-moz-column-set) |
| 10047 | // R) Block (-moz-column-content, created by x) |
| 10048 | // S) Block (div, y) |
| 10049 | // T) Text ("e") |
| 10050 | // U) Block (div, new BFC) <-- not in multi-column hierarchy |
| 10051 | // V) Text ("f") |
| 10052 | // |
| 10053 | // ColumnSet linkage described in 3): B -> G -> Q |
| 10054 | // |
| 10055 | // Block linkage described in 4): C -> H -> R and I -> S |
| 10056 | // |
| 10057 | // clang-format on |
| 10058 | |
| 10059 | nsBlockFrame* blockFrame = do_QueryFrame(*aNewFrame); |
| 10060 | MOZ_ASSERT(blockFrame && blockFrame->IsBlockFrame(), "not a block frame?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(blockFrame && blockFrame->IsBlockFrame()) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(blockFrame && blockFrame->IsBlockFrame()) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("blockFrame && blockFrame->IsBlockFrame()" " (" "not a block frame?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10060); AnnotateMozCrashReason("MOZ_ASSERT" "(" "blockFrame && blockFrame->IsBlockFrame()" ") (" "not a block frame?" ")"); do { MOZ_CrashSequence(__null , 10060); __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 10061 | |
| 10062 | // Create column hierarchy if necessary. |
| 10063 | const bool needsColumn = |
| 10064 | aComputedStyle->StyleColumn()->IsColumnContainerStyle() && |
| 10065 | !aParentFrame->IsTextInputFrame(); |
| 10066 | if (needsColumn) { |
| 10067 | *aNewFrame = BeginBuildingColumns(aState, aContent, aParentFrame, |
| 10068 | blockFrame, aComputedStyle); |
| 10069 | |
| 10070 | if (aPositionedFrameForAbsPosContainer == blockFrame) { |
| 10071 | aPositionedFrameForAbsPosContainer = *aNewFrame; |
| 10072 | } |
| 10073 | } else { |
| 10074 | // No need to create column hierarchy. Initialize block frame. |
| 10075 | blockFrame->SetComputedStyleWithoutNotification(aComputedStyle); |
| 10076 | InitAndRestoreFrame(aState, aContent, aParentFrame, blockFrame); |
| 10077 | } |
| 10078 | |
| 10079 | aState.AddChild(*aNewFrame, aFrameList, aContent, |
| 10080 | aContentParentFrame ? aContentParentFrame : aParentFrame); |
| 10081 | if (!mRootElementFrame) { |
| 10082 | mRootElementFrame = *aNewFrame; |
| 10083 | } |
| 10084 | |
| 10085 | // We should make the outer frame be the absolute containing block, |
| 10086 | // if one is required. We have to do this because absolute |
| 10087 | // positioning must be computed with respect to the CSS dimensions |
| 10088 | // of the element, which are the dimensions of the outer block. But |
| 10089 | // we can't really do that because only blocks can have absolute |
| 10090 | // children. So use the block and try to compensate with hacks |
| 10091 | // in nsBlockFrame::CalculateContainingBlockSizeForAbsolutes. |
| 10092 | nsFrameConstructorSaveState absoluteSaveState; |
| 10093 | (*aNewFrame)->AddStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 10094 | if (aPositionedFrameForAbsPosContainer) { |
| 10095 | aState.PushAbsoluteContainingBlock( |
| 10096 | *aNewFrame, aPositionedFrameForAbsPosContainer, absoluteSaveState); |
| 10097 | } |
| 10098 | |
| 10099 | nsFrameConstructorSaveState floatSaveState; |
| 10100 | aState.MaybePushFloatContainingBlock(blockFrame, floatSaveState); |
| 10101 | |
| 10102 | if (aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) && |
| 10103 | !ShouldSuppressColumnSpanDescendants(aParentFrame)) { |
| 10104 | blockFrame->AddStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR); |
| 10105 | } |
| 10106 | |
| 10107 | // Process the child content |
| 10108 | nsFrameList childList; |
| 10109 | ProcessChildren(aState, aContent, aComputedStyle, blockFrame, true, childList, |
| 10110 | true); |
| 10111 | |
| 10112 | if (!MayNeedToCreateColumnSpanSiblings(blockFrame, childList)) { |
| 10113 | // No need to create column-span siblings. |
| 10114 | blockFrame->SetInitialChildList(FrameChildListID::Principal, |
| 10115 | std::move(childList)); |
| 10116 | return; |
| 10117 | } |
| 10118 | |
| 10119 | // Extract any initial non-column-span kids, and put them in block frame's |
| 10120 | // child list. |
| 10121 | nsFrameList initialNonColumnSpanKids = |
| 10122 | childList.Split([](nsIFrame* f) { return f->IsColumnSpan(); }); |
| 10123 | blockFrame->SetInitialChildList(FrameChildListID::Principal, |
| 10124 | std::move(initialNonColumnSpanKids)); |
| 10125 | |
| 10126 | if (childList.IsEmpty()) { |
| 10127 | // No more kids to process (there weren't any column-span kids). |
| 10128 | return; |
| 10129 | } |
| 10130 | |
| 10131 | nsFrameList columnSpanSiblings = CreateColumnSpanSiblings( |
| 10132 | aState, blockFrame, childList, |
| 10133 | // If we're constructing a column container, pass nullptr as |
| 10134 | // aPositionedFrame to forbid reparenting absolute/fixed positioned frames |
| 10135 | // to column contents or column-span wrappers. |
| 10136 | needsColumn ? nullptr : aPositionedFrameForAbsPosContainer); |
| 10137 | |
| 10138 | if (needsColumn) { |
| 10139 | // We're constructing a column container; need to finish building it. |
| 10140 | FinishBuildingColumns(aState, *aNewFrame, blockFrame, columnSpanSiblings); |
| 10141 | } else { |
| 10142 | // We're constructing a normal block which has column-span children in a |
| 10143 | // column hierarchy such as "x" in the following example. |
| 10144 | // |
| 10145 | // <div style="column-count: 2"> |
| 10146 | // <div id="x"> |
| 10147 | // <div>normal child</div> |
| 10148 | // <div style="column-span">spanner</div> |
| 10149 | // </div> |
| 10150 | // </div> |
| 10151 | aFrameList.AppendFrames(nullptr, std::move(columnSpanSiblings)); |
| 10152 | } |
| 10153 | |
| 10154 | MOZ_ASSERT(columnSpanSiblings.IsEmpty(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(columnSpanSiblings.IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(columnSpanSiblings.IsEmpty() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "columnSpanSiblings.IsEmpty()" " (" "The column-span siblings should be moved to the proper place!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 10155 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "columnSpanSiblings.IsEmpty()" ") (" "The column-span siblings should be moved to the proper place!" ")"); do { MOZ_CrashSequence(__null, 10155); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false) |
| 10155 | "The column-span siblings should be moved to the proper place!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(columnSpanSiblings.IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(columnSpanSiblings.IsEmpty() ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "columnSpanSiblings.IsEmpty()" " (" "The column-span siblings should be moved to the proper place!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 10155 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "columnSpanSiblings.IsEmpty()" ") (" "The column-span siblings should be moved to the proper place!" ")"); do { MOZ_CrashSequence(__null, 10155); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 10156 | } |
| 10157 | |
| 10158 | nsBlockFrame* nsCSSFrameConstructor::BeginBuildingColumns( |
| 10159 | nsFrameConstructorState& aState, nsIContent* aContent, |
| 10160 | nsContainerFrame* aParentFrame, nsContainerFrame* aColumnContent, |
| 10161 | ComputedStyle* aComputedStyle) { |
| 10162 | MOZ_ASSERT(aColumnContent->IsBlockFrame(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aColumnContent->IsBlockFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aColumnContent->IsBlockFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aColumnContent->IsBlockFrame()" " (" "aColumnContent should be a block frame." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 10163 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aColumnContent->IsBlockFrame()" ") (" "aColumnContent should be a block frame." ")"); do { MOZ_CrashSequence (__null, 10163); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 10163 | "aColumnContent should be a block frame.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aColumnContent->IsBlockFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aColumnContent->IsBlockFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aColumnContent->IsBlockFrame()" " (" "aColumnContent should be a block frame." ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 10163 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aColumnContent->IsBlockFrame()" ") (" "aColumnContent should be a block frame." ")"); do { MOZ_CrashSequence (__null, 10163); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 10164 | MOZ_ASSERT(aComputedStyle->StyleColumn()->IsColumnContainerStyle(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aComputedStyle->StyleColumn()->IsColumnContainerStyle ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aComputedStyle->StyleColumn()->IsColumnContainerStyle ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aComputedStyle->StyleColumn()->IsColumnContainerStyle()" " (" "No need to build a column hierarchy!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10165); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aComputedStyle->StyleColumn()->IsColumnContainerStyle()" ") (" "No need to build a column hierarchy!" ")"); do { MOZ_CrashSequence (__null, 10165); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 10165 | "No need to build a column hierarchy!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aComputedStyle->StyleColumn()->IsColumnContainerStyle ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aComputedStyle->StyleColumn()->IsColumnContainerStyle ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aComputedStyle->StyleColumn()->IsColumnContainerStyle()" " (" "No need to build a column hierarchy!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10165); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aComputedStyle->StyleColumn()->IsColumnContainerStyle()" ") (" "No need to build a column hierarchy!" ")"); do { MOZ_CrashSequence (__null, 10165); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 10166 | |
| 10167 | // The initial column hierarchy looks like this: |
| 10168 | // |
| 10169 | // ColumnSetWrapper (original style) |
| 10170 | // ColumnSet (-moz-column-set) |
| 10171 | // Block (-moz-column-content) |
| 10172 | // |
| 10173 | nsBlockFrame* columnSetWrapper = NS_NewColumnSetWrapperFrame( |
| 10174 | mPresShell, aComputedStyle, nsFrameState(NS_FRAME_OWNS_ANON_BOXES)); |
| 10175 | InitAndRestoreFrame(aState, aContent, aParentFrame, columnSetWrapper); |
| 10176 | if (aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) && |
| 10177 | !ShouldSuppressColumnSpanDescendants(aParentFrame)) { |
| 10178 | columnSetWrapper->AddStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR); |
| 10179 | } |
| 10180 | |
| 10181 | AutoFrameConstructionPageName pageNameTracker(aState, columnSetWrapper); |
| 10182 | RefPtr<ComputedStyle> columnSetStyle = |
| 10183 | mPresShell->StyleSet()->ResolveInheritingAnonymousBoxStyle( |
| 10184 | PseudoStyleType::MozColumnSet, aComputedStyle); |
| 10185 | nsContainerFrame* columnSet = NS_NewColumnSetFrame( |
| 10186 | mPresShell, columnSetStyle, nsFrameState(NS_FRAME_OWNS_ANON_BOXES)); |
| 10187 | InitAndRestoreFrame(aState, aContent, columnSetWrapper, columnSet); |
| 10188 | columnSet->AddStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR); |
| 10189 | |
| 10190 | RefPtr<ComputedStyle> blockStyle = |
| 10191 | mPresShell->StyleSet()->ResolveInheritingAnonymousBoxStyle( |
| 10192 | PseudoStyleType::MozColumnContent, columnSetStyle); |
| 10193 | aColumnContent->SetComputedStyleWithoutNotification(blockStyle); |
| 10194 | InitAndRestoreFrame(aState, aContent, columnSet, aColumnContent); |
| 10195 | aColumnContent->AddStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR); |
| 10196 | |
| 10197 | // Set up the parent-child chain. |
| 10198 | SetInitialSingleChild(columnSetWrapper, columnSet); |
| 10199 | SetInitialSingleChild(columnSet, aColumnContent); |
| 10200 | |
| 10201 | return columnSetWrapper; |
| 10202 | } |
| 10203 | |
| 10204 | void nsCSSFrameConstructor::FinishBuildingColumns( |
| 10205 | nsFrameConstructorState& aState, nsContainerFrame* aColumnSetWrapper, |
| 10206 | nsContainerFrame* aColumnContent, nsFrameList& aColumnContentSiblings) { |
| 10207 | nsContainerFrame* prevColumnSet = aColumnContent->GetParent(); |
| 10208 | |
| 10209 | MOZ_ASSERT(prevColumnSet->IsColumnSetFrame() &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(prevColumnSet->IsColumnSetFrame() && prevColumnSet ->GetParent() == aColumnSetWrapper)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(prevColumnSet->IsColumnSetFrame () && prevColumnSet->GetParent() == aColumnSetWrapper ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "prevColumnSet->IsColumnSetFrame() && prevColumnSet->GetParent() == aColumnSetWrapper" " (" "Should have established column hierarchy!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10211); AnnotateMozCrashReason("MOZ_ASSERT" "(" "prevColumnSet->IsColumnSetFrame() && prevColumnSet->GetParent() == aColumnSetWrapper" ") (" "Should have established column hierarchy!" ")"); do { MOZ_CrashSequence(__null, 10211); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 10210 | prevColumnSet->GetParent() == aColumnSetWrapper,do { static_assert( mozilla::detail::AssertionConditionType< decltype(prevColumnSet->IsColumnSetFrame() && prevColumnSet ->GetParent() == aColumnSetWrapper)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(prevColumnSet->IsColumnSetFrame () && prevColumnSet->GetParent() == aColumnSetWrapper ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "prevColumnSet->IsColumnSetFrame() && prevColumnSet->GetParent() == aColumnSetWrapper" " (" "Should have established column hierarchy!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10211); AnnotateMozCrashReason("MOZ_ASSERT" "(" "prevColumnSet->IsColumnSetFrame() && prevColumnSet->GetParent() == aColumnSetWrapper" ") (" "Should have established column hierarchy!" ")"); do { MOZ_CrashSequence(__null, 10211); __attribute__((nomerge)) :: abort(); } while (false); } } while (false) |
| 10211 | "Should have established column hierarchy!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(prevColumnSet->IsColumnSetFrame() && prevColumnSet ->GetParent() == aColumnSetWrapper)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(prevColumnSet->IsColumnSetFrame () && prevColumnSet->GetParent() == aColumnSetWrapper ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "prevColumnSet->IsColumnSetFrame() && prevColumnSet->GetParent() == aColumnSetWrapper" " (" "Should have established column hierarchy!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10211); AnnotateMozCrashReason("MOZ_ASSERT" "(" "prevColumnSet->IsColumnSetFrame() && prevColumnSet->GetParent() == aColumnSetWrapper" ") (" "Should have established column hierarchy!" ")"); do { MOZ_CrashSequence(__null, 10211); __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 10212 | |
| 10213 | // Tag the first ColumnSet to have column-span siblings so that the bit can |
| 10214 | // propagate to all the continuations. We don't want the last ColumnSet to |
| 10215 | // have this bit, so we will unset the bit for it at the end of this function. |
| 10216 | prevColumnSet->SetHasColumnSpanSiblings(true); |
| 10217 | |
| 10218 | nsFrameList finalList; |
| 10219 | while (aColumnContentSiblings.NotEmpty()) { |
| 10220 | nsIFrame* f = aColumnContentSiblings.RemoveFirstChild(); |
| 10221 | if (f->IsColumnSpan()) { |
| 10222 | // Do nothing for column-span wrappers. Just move it to the final |
| 10223 | // items. |
| 10224 | finalList.AppendFrame(aColumnSetWrapper, f); |
| 10225 | } else { |
| 10226 | auto* continuingColumnSet = static_cast<nsContainerFrame*>( |
| 10227 | CreateContinuingFrame(prevColumnSet, aColumnSetWrapper, false)); |
| 10228 | MOZ_ASSERT(continuingColumnSet->HasColumnSpanSiblings(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(continuingColumnSet->HasColumnSpanSiblings())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(continuingColumnSet->HasColumnSpanSiblings()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("continuingColumnSet->HasColumnSpanSiblings()" " (" "The bit should propagate to the next continuation!" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 10229); AnnotateMozCrashReason("MOZ_ASSERT" "(" "continuingColumnSet->HasColumnSpanSiblings()" ") (" "The bit should propagate to the next continuation!" ")" ); do { MOZ_CrashSequence(__null, 10229); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 10229 | "The bit should propagate to the next continuation!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(continuingColumnSet->HasColumnSpanSiblings())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(continuingColumnSet->HasColumnSpanSiblings()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("continuingColumnSet->HasColumnSpanSiblings()" " (" "The bit should propagate to the next continuation!" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 10229); AnnotateMozCrashReason("MOZ_ASSERT" "(" "continuingColumnSet->HasColumnSpanSiblings()" ") (" "The bit should propagate to the next continuation!" ")" ); do { MOZ_CrashSequence(__null, 10229); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 10230 | |
| 10231 | f->SetParent(continuingColumnSet); |
| 10232 | SetInitialSingleChild(continuingColumnSet, f); |
| 10233 | finalList.AppendFrame(aColumnSetWrapper, continuingColumnSet); |
| 10234 | prevColumnSet = continuingColumnSet; |
| 10235 | } |
| 10236 | } |
| 10237 | |
| 10238 | // Unset the bit because the last ColumnSet has no column-span siblings. |
| 10239 | prevColumnSet->SetHasColumnSpanSiblings(false); |
| 10240 | |
| 10241 | aColumnSetWrapper->AppendFrames(FrameChildListID::Principal, |
| 10242 | std::move(finalList)); |
| 10243 | } |
| 10244 | |
| 10245 | bool nsCSSFrameConstructor::MayNeedToCreateColumnSpanSiblings( |
| 10246 | nsContainerFrame* aBlockFrame, const nsFrameList& aChildList) { |
| 10247 | if (!aBlockFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)) { |
| 10248 | // The block frame isn't in a multi-column block formatting context. |
| 10249 | return false; |
| 10250 | } |
| 10251 | |
| 10252 | if (ShouldSuppressColumnSpanDescendants(aBlockFrame)) { |
| 10253 | // No need to create column-span siblings for a frame that suppresses them. |
| 10254 | return false; |
| 10255 | } |
| 10256 | |
| 10257 | if (aChildList.IsEmpty()) { |
| 10258 | // No child needs to be processed. |
| 10259 | return false; |
| 10260 | } |
| 10261 | |
| 10262 | // Need to actually look into the child list. |
| 10263 | return true; |
| 10264 | } |
| 10265 | |
| 10266 | nsFrameList nsCSSFrameConstructor::CreateColumnSpanSiblings( |
| 10267 | nsFrameConstructorState& aState, nsContainerFrame* aInitialBlock, |
| 10268 | nsFrameList& aChildList, nsIFrame* aPositionedFrame) { |
| 10269 | MOZ_ASSERT(aInitialBlock->IsBlockFrameOrSubclass())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aInitialBlock->IsBlockFrameOrSubclass())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aInitialBlock->IsBlockFrameOrSubclass()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aInitialBlock->IsBlockFrameOrSubclass()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 10269); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aInitialBlock->IsBlockFrameOrSubclass()" ")"); do { MOZ_CrashSequence(__null, 10269); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 10270 | MOZ_ASSERT(!aPositionedFrame || aPositionedFrame->IsAbsPosContainingBlock())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aPositionedFrame || aPositionedFrame->IsAbsPosContainingBlock ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aPositionedFrame || aPositionedFrame->IsAbsPosContainingBlock ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!aPositionedFrame || aPositionedFrame->IsAbsPosContainingBlock()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 10270); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aPositionedFrame || aPositionedFrame->IsAbsPosContainingBlock()" ")"); do { MOZ_CrashSequence(__null, 10270); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 10271 | |
| 10272 | nsIContent* const content = aInitialBlock->GetContent(); |
| 10273 | nsContainerFrame* const parentFrame = aInitialBlock->GetParent(); |
| 10274 | const bool isInitialBlockFloatCB = aInitialBlock->IsFloatContainingBlock(); |
| 10275 | |
| 10276 | nsFrameList siblings; |
| 10277 | nsContainerFrame* lastNonColumnSpanWrapper = aInitialBlock; |
| 10278 | |
| 10279 | // Tag the first non-column-span wrapper to have column-span siblings so that |
| 10280 | // the bit can propagate to all the continuations. We don't want the last |
| 10281 | // wrapper to have this bit, so we will unset the bit for it at the end of |
| 10282 | // this function. |
| 10283 | lastNonColumnSpanWrapper->SetHasColumnSpanSiblings(true); |
| 10284 | do { |
| 10285 | MOZ_ASSERT(aChildList.NotEmpty(), "Why call this if child list is empty?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChildList.NotEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aChildList.NotEmpty()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("aChildList.NotEmpty()" " (" "Why call this if child list is empty?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10285); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildList.NotEmpty()" ") (" "Why call this if child list is empty?" ")"); do { MOZ_CrashSequence (__null, 10285); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 10286 | MOZ_ASSERT(aChildList.FirstChild()->IsColumnSpan(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChildList.FirstChild()->IsColumnSpan())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aChildList.FirstChild()->IsColumnSpan()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aChildList.FirstChild()->IsColumnSpan()" " (" "Must have the child starting with column-span!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10287); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildList.FirstChild()->IsColumnSpan()" ") (" "Must have the child starting with column-span!" ")"); do { MOZ_CrashSequence(__null, 10287); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 10287 | "Must have the child starting with column-span!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChildList.FirstChild()->IsColumnSpan())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aChildList.FirstChild()->IsColumnSpan()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aChildList.FirstChild()->IsColumnSpan()" " (" "Must have the child starting with column-span!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10287); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildList.FirstChild()->IsColumnSpan()" ") (" "Must have the child starting with column-span!" ")"); do { MOZ_CrashSequence(__null, 10287); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 10288 | |
| 10289 | // Grab the consecutive column-span kids, and reparent them into a |
| 10290 | // block frame. |
| 10291 | RefPtr<ComputedStyle> columnSpanWrapperStyle = |
| 10292 | mPresShell->StyleSet()->ResolveNonInheritingAnonymousBoxStyle( |
| 10293 | PseudoStyleType::MozColumnSpanWrapper); |
| 10294 | nsBlockFrame* columnSpanWrapper = |
| 10295 | NS_NewBlockFrame(mPresShell, columnSpanWrapperStyle); |
| 10296 | InitAndRestoreFrame(aState, content, parentFrame, columnSpanWrapper, |
| 10297 | AllowCounters::No); |
| 10298 | columnSpanWrapper->AddStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR | |
| 10299 | NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 10300 | |
| 10301 | nsFrameList columnSpanKids = |
| 10302 | aChildList.Split([](nsIFrame* f) { return !f->IsColumnSpan(); }); |
| 10303 | columnSpanKids.ApplySetParent(columnSpanWrapper); |
| 10304 | columnSpanWrapper->SetInitialChildList(FrameChildListID::Principal, |
| 10305 | std::move(columnSpanKids)); |
| 10306 | if (aPositionedFrame) { |
| 10307 | aState.ReparentAbsoluteItems(columnSpanWrapper); |
| 10308 | } |
| 10309 | |
| 10310 | siblings.AppendFrame(nullptr, columnSpanWrapper); |
| 10311 | |
| 10312 | // Grab the consecutive non-column-span kids, and reparent them into a new |
| 10313 | // continuation of the last non-column-span wrapper frame. |
| 10314 | auto* nonColumnSpanWrapper = static_cast<nsContainerFrame*>( |
| 10315 | CreateContinuingFrame(lastNonColumnSpanWrapper, parentFrame, false)); |
| 10316 | nonColumnSpanWrapper->AddStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR | |
| 10317 | NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 10318 | MOZ_ASSERT(nonColumnSpanWrapper->HasColumnSpanSiblings(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(nonColumnSpanWrapper->HasColumnSpanSiblings())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(nonColumnSpanWrapper->HasColumnSpanSiblings()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("nonColumnSpanWrapper->HasColumnSpanSiblings()" " (" "The bit should propagate to the next continuation!" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 10319); AnnotateMozCrashReason("MOZ_ASSERT" "(" "nonColumnSpanWrapper->HasColumnSpanSiblings()" ") (" "The bit should propagate to the next continuation!" ")" ); do { MOZ_CrashSequence(__null, 10319); __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 10319 | "The bit should propagate to the next continuation!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(nonColumnSpanWrapper->HasColumnSpanSiblings())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(nonColumnSpanWrapper->HasColumnSpanSiblings()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("nonColumnSpanWrapper->HasColumnSpanSiblings()" " (" "The bit should propagate to the next continuation!" ")" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 10319); AnnotateMozCrashReason("MOZ_ASSERT" "(" "nonColumnSpanWrapper->HasColumnSpanSiblings()" ") (" "The bit should propagate to the next continuation!" ")" ); do { MOZ_CrashSequence(__null, 10319); __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 10320 | |
| 10321 | if (aChildList.NotEmpty()) { |
| 10322 | nsFrameList nonColumnSpanKids = |
| 10323 | aChildList.Split([](nsIFrame* f) { return f->IsColumnSpan(); }); |
| 10324 | |
| 10325 | nonColumnSpanKids.ApplySetParent(nonColumnSpanWrapper); |
| 10326 | nonColumnSpanWrapper->SetInitialChildList(FrameChildListID::Principal, |
| 10327 | std::move(nonColumnSpanKids)); |
| 10328 | if (aPositionedFrame) { |
| 10329 | aState.ReparentAbsoluteItems(nonColumnSpanWrapper); |
| 10330 | } |
| 10331 | if (isInitialBlockFloatCB) { |
| 10332 | aState.ReparentFloats(nonColumnSpanWrapper); |
| 10333 | } |
| 10334 | } |
| 10335 | |
| 10336 | siblings.AppendFrame(nullptr, nonColumnSpanWrapper); |
| 10337 | |
| 10338 | lastNonColumnSpanWrapper = nonColumnSpanWrapper; |
| 10339 | } while (aChildList.NotEmpty()); |
| 10340 | |
| 10341 | // Unset the bit because the last non-column-span wrapper has no column-span |
| 10342 | // siblings. |
| 10343 | lastNonColumnSpanWrapper->SetHasColumnSpanSiblings(false); |
| 10344 | |
| 10345 | return siblings; |
| 10346 | } |
| 10347 | |
| 10348 | bool nsCSSFrameConstructor::MaybeRecreateForColumnSpan( |
| 10349 | nsFrameConstructorState& aState, nsContainerFrame* aParentFrame, |
| 10350 | nsFrameList& aFrameList, nsIFrame* aPrevSibling) { |
| 10351 | if (!aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)) { |
| 10352 | return false; |
| 10353 | } |
| 10354 | |
| 10355 | if (aFrameList.IsEmpty()) { |
| 10356 | return false; |
| 10357 | } |
| 10358 | |
| 10359 | MOZ_ASSERT(!IsFramePartOfIBSplit(aParentFrame),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsFramePartOfIBSplit(aParentFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsFramePartOfIBSplit(aParentFrame )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!IsFramePartOfIBSplit(aParentFrame)" " (" "We should have wiped aParentFrame in " "WipeContainingBlock if it's part of IB split!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10361); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsFramePartOfIBSplit(aParentFrame)" ") (" "We should have wiped aParentFrame in " "WipeContainingBlock if it's part of IB split!" ")"); do { MOZ_CrashSequence(__null, 10361); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false) |
| 10360 | "We should have wiped aParentFrame in "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsFramePartOfIBSplit(aParentFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsFramePartOfIBSplit(aParentFrame )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!IsFramePartOfIBSplit(aParentFrame)" " (" "We should have wiped aParentFrame in " "WipeContainingBlock if it's part of IB split!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10361); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsFramePartOfIBSplit(aParentFrame)" ") (" "We should have wiped aParentFrame in " "WipeContainingBlock if it's part of IB split!" ")"); do { MOZ_CrashSequence(__null, 10361); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false) |
| 10361 | "WipeContainingBlock if it's part of IB split!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsFramePartOfIBSplit(aParentFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsFramePartOfIBSplit(aParentFrame )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!IsFramePartOfIBSplit(aParentFrame)" " (" "We should have wiped aParentFrame in " "WipeContainingBlock if it's part of IB split!" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10361); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsFramePartOfIBSplit(aParentFrame)" ") (" "We should have wiped aParentFrame in " "WipeContainingBlock if it's part of IB split!" ")"); do { MOZ_CrashSequence(__null, 10361); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 10362 | |
| 10363 | nsIFrame* nextSibling = ::GetInsertNextSibling(aParentFrame, aPrevSibling); |
| 10364 | if (!nextSibling && IsLastContinuationForColumnContent(aParentFrame)) { |
| 10365 | // We are appending a list of frames to the last continuation of a |
| 10366 | // ::-moz-column-content. This is the case where we can fix the frame tree |
| 10367 | // instead of reframing the containing block. Return false and let |
| 10368 | // AppendFramesToParent() deal with this. |
| 10369 | return false; |
| 10370 | } |
| 10371 | |
| 10372 | auto HasColumnSpan = [](const nsFrameList& aList) { |
| 10373 | for (nsIFrame* f : aList) { |
| 10374 | if (f->IsColumnSpan()) { |
| 10375 | return true; |
| 10376 | } |
| 10377 | } |
| 10378 | return false; |
| 10379 | }; |
| 10380 | |
| 10381 | if (HasColumnSpan(aFrameList)) { |
| 10382 | // If any frame in the frame list has "column-span:all" style, i.e. a |
| 10383 | // -moz-column-span-wrapper frame, we need to reframe the multi-column |
| 10384 | // containing block. |
| 10385 | // |
| 10386 | // We can only be here if none of the new inserted nsIContent* nodes (via |
| 10387 | // ContentAppended or ContentRangeInserted) have column-span:all style, yet |
| 10388 | // some of them have column-span:all descendants. Sadly, there's no way to |
| 10389 | // detect this by checking FrameConstructionItems in WipeContainingBlock(). |
| 10390 | // Otherwise, we would have already wiped the multi-column containing block. |
| 10391 | PROFILER_MARKER("Reframe multi-column after constructing frame list",do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("Reframe multi-column after constructing frame list", ::geckoprofiler ::category::LAYOUT, {}, ::geckoprofiler::markers::Tracing{}, "Layout" ); } } while (false); } while (false) |
| 10392 | LAYOUT, {}, Tracing, "Layout")do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("Reframe multi-column after constructing frame list", ::geckoprofiler ::category::LAYOUT, {}, ::geckoprofiler::markers::Tracing{}, "Layout" ); } } while (false); } while (false); |
| 10393 | |
| 10394 | // aFrameList can contain placeholder frames. In order to destroy their |
| 10395 | // associated out-of-flow frames properly, we need to manually flush all the |
| 10396 | // out-of-flow frames in aState to their container frames. |
| 10397 | aState.ProcessFrameInsertionsForAllLists(); |
| 10398 | DestroyContext context(mPresShell); |
| 10399 | aFrameList.DestroyFrames(context); |
| 10400 | RecreateFramesForContent( |
| 10401 | GetMultiColumnContainingBlockFor(aParentFrame)->GetContent(), |
| 10402 | InsertionKind::Async); |
| 10403 | return true; |
| 10404 | } |
| 10405 | |
| 10406 | return false; |
| 10407 | } |
| 10408 | |
| 10409 | nsIFrame* nsCSSFrameConstructor::ConstructInline( |
| 10410 | nsFrameConstructorState& aState, FrameConstructionItem& aItem, |
| 10411 | nsContainerFrame* aParentFrame, const nsStyleDisplay* aDisplay, |
| 10412 | nsFrameList& aFrameList) { |
| 10413 | // If an inline frame has non-inline kids, then we chop up the child list |
| 10414 | // into runs of blocks and runs of inlines, create anonymous block frames to |
| 10415 | // contain the runs of blocks, inline frames with our style for the runs of |
| 10416 | // inlines, and put all these frames, in order, into aFrameList. |
| 10417 | // |
| 10418 | // When there are column-span blocks in a run of blocks, instead of creating |
| 10419 | // an anonymous block to wrap them, we create multiple anonymous blocks, |
| 10420 | // wrapping runs of non-column-spans and runs of column-spans. |
| 10421 | // |
| 10422 | // We return the the first one. The whole setup is called an {ib} |
| 10423 | // split; in what follows "frames in the split" refers to the anonymous blocks |
| 10424 | // and inlines that contain our children. |
| 10425 | // |
| 10426 | // {ib} splits maintain the following invariants: |
| 10427 | // 1) All frames in the split have the NS_FRAME_PART_OF_IBSPLIT bit |
| 10428 | // set. |
| 10429 | // |
| 10430 | // 2) Each frame in the split has the nsIFrame::IBSplitSibling |
| 10431 | // property pointing to the next frame in the split, except for the last |
| 10432 | // one, which does not have it set. |
| 10433 | // |
| 10434 | // 3) Each frame in the split has the nsIFrame::IBSplitPrevSibling |
| 10435 | // property pointing to the previous frame in the split, except for the |
| 10436 | // first one, which does not have it set. |
| 10437 | // |
| 10438 | // 4) The first and last frame in the split are always inlines. |
| 10439 | // |
| 10440 | // 5) The frames wrapping runs of non-column-spans are linked together as |
| 10441 | // continuations. The frames wrapping runs of column-spans are *not* |
| 10442 | // linked with each other nor with other non-column-span wrappers. |
| 10443 | // |
| 10444 | // 6) The first and last frame in the chains of blocks are always wrapping |
| 10445 | // non-column-spans. Both of them are created even if they're empty. |
| 10446 | // |
| 10447 | // An invariant that is NOT maintained is that the wrappers are actually |
| 10448 | // linked via GetNextSibling linkage. A simple example is an inline |
| 10449 | // containing an inline that contains a block. The three parts of the inner |
| 10450 | // inline end up with three different parents. |
| 10451 | // |
| 10452 | // For example, this HTML: |
| 10453 | // <span> |
| 10454 | // <div>a</div> |
| 10455 | // <span> |
| 10456 | // b |
| 10457 | // <div>c</div> |
| 10458 | // </span> |
| 10459 | // d |
| 10460 | // <div>e</div> |
| 10461 | // f |
| 10462 | // </span> |
| 10463 | // Gives the following frame tree: |
| 10464 | // |
| 10465 | // Inline (outer span) |
| 10466 | // Block (anonymous, outer span) |
| 10467 | // Block (div) |
| 10468 | // Text("a") |
| 10469 | // Inline (outer span) |
| 10470 | // Inline (inner span) |
| 10471 | // Text("b") |
| 10472 | // Block (anonymous, outer span) |
| 10473 | // Block (anonymous, inner span) |
| 10474 | // Block (div) |
| 10475 | // Text("c") |
| 10476 | // Inline (outer span) |
| 10477 | // Inline (inner span) |
| 10478 | // Text("d") |
| 10479 | // Block (anonymous, outer span) |
| 10480 | // Block (div) |
| 10481 | // Text("e") |
| 10482 | // Inline (outer span) |
| 10483 | // Text("f") |
| 10484 | |
| 10485 | nsIContent* const content = aItem.mContent; |
| 10486 | ComputedStyle* const computedStyle = aItem.mComputedStyle; |
| 10487 | |
| 10488 | nsInlineFrame* newFrame = NS_NewInlineFrame(mPresShell, computedStyle); |
| 10489 | |
| 10490 | // Initialize the frame |
| 10491 | InitAndRestoreFrame(aState, content, aParentFrame, newFrame); |
| 10492 | |
| 10493 | // definition cannot be inside next block because the object's destructor is |
| 10494 | // significant. this is part of the fix for bug 42372 |
| 10495 | nsFrameConstructorSaveState absoluteSaveState; |
| 10496 | |
| 10497 | bool isAbsPosCB = newFrame->IsAbsPosContainingBlock(); |
| 10498 | newFrame->AddStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 10499 | if (isAbsPosCB) { |
| 10500 | // Relatively positioned frames becomes a container for child |
| 10501 | // frames that are positioned |
| 10502 | aState.PushAbsoluteContainingBlock(newFrame, newFrame, absoluteSaveState); |
| 10503 | } |
| 10504 | |
| 10505 | if (aParentFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR) && |
| 10506 | !ShouldSuppressColumnSpanDescendants(aParentFrame)) { |
| 10507 | newFrame->AddStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR); |
| 10508 | } |
| 10509 | |
| 10510 | // Process the child content |
| 10511 | nsFrameList childList; |
| 10512 | ConstructFramesFromItemList(aState, aItem.mChildItems, newFrame, |
| 10513 | /* aParentIsWrapperAnonBox = */ false, childList); |
| 10514 | |
| 10515 | nsIFrame* firstBlock = nullptr; |
| 10516 | if (!aItem.mIsAllInline) { |
| 10517 | for (nsIFrame* f : childList) { |
| 10518 | if (f->IsBlockOutside()) { |
| 10519 | firstBlock = f; |
| 10520 | break; |
| 10521 | } |
| 10522 | } |
| 10523 | } |
| 10524 | |
| 10525 | if (aItem.mIsAllInline || !firstBlock) { |
| 10526 | // This part is easy. We either already know we have no non-inline kids, |
| 10527 | // or haven't found any when constructing actual frames (the latter can |
| 10528 | // happen only if out-of-flows that we thought had no containing block |
| 10529 | // acquired one when ancestor inline frames and {ib} splits got |
| 10530 | // constructed). Just put all the kids into the single inline frame and |
| 10531 | // bail. |
| 10532 | newFrame->SetInitialChildList(FrameChildListID::Principal, |
| 10533 | std::move(childList)); |
| 10534 | aState.AddChild(newFrame, aFrameList, content, aParentFrame); |
| 10535 | return newFrame; |
| 10536 | } |
| 10537 | |
| 10538 | // This inline frame contains several types of children. Therefore this frame |
| 10539 | // has to be chopped into several pieces, as described above. |
| 10540 | |
| 10541 | // Grab the first inline's kids |
| 10542 | nsFrameList firstInlineKids = childList.TakeFramesBefore(firstBlock); |
| 10543 | newFrame->SetInitialChildList(FrameChildListID::Principal, |
| 10544 | std::move(firstInlineKids)); |
| 10545 | |
| 10546 | aFrameList.AppendFrame(nullptr, newFrame); |
| 10547 | |
| 10548 | newFrame->AddStateBits(NS_FRAME_OWNS_ANON_BOXES); |
| 10549 | CreateIBSiblings(aState, newFrame, isAbsPosCB, childList, aFrameList); |
| 10550 | |
| 10551 | return newFrame; |
| 10552 | } |
| 10553 | |
| 10554 | void nsCSSFrameConstructor::CreateIBSiblings(nsFrameConstructorState& aState, |
| 10555 | nsContainerFrame* aInitialInline, |
| 10556 | bool aIsAbsPosCB, |
| 10557 | nsFrameList& aChildList, |
| 10558 | nsFrameList& aSiblings) { |
| 10559 | MOZ_ASSERT(aIsAbsPosCB == aInitialInline->IsAbsPosContainingBlock())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aIsAbsPosCB == aInitialInline->IsAbsPosContainingBlock ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aIsAbsPosCB == aInitialInline->IsAbsPosContainingBlock ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aIsAbsPosCB == aInitialInline->IsAbsPosContainingBlock()" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 10559); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aIsAbsPosCB == aInitialInline->IsAbsPosContainingBlock()" ")"); do { MOZ_CrashSequence(__null, 10559); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 10560 | |
| 10561 | nsIContent* content = aInitialInline->GetContent(); |
| 10562 | ComputedStyle* computedStyle = aInitialInline->Style(); |
| 10563 | nsContainerFrame* parentFrame = aInitialInline->GetParent(); |
| 10564 | |
| 10565 | // Resolve the right style for our anonymous blocks. |
| 10566 | // |
| 10567 | // The distinction in styles is needed because of CSS 2.1, section |
| 10568 | // 9.2.1.1, which says: |
| 10569 | // |
| 10570 | // When such an inline box is affected by relative positioning, any |
| 10571 | // resulting translation also affects the block-level box contained |
| 10572 | // in the inline box. |
| 10573 | RefPtr<ComputedStyle> blockSC = |
| 10574 | mPresShell->StyleSet()->ResolveInheritingAnonymousBoxStyle( |
| 10575 | PseudoStyleType::MozBlockInsideInlineWrapper, computedStyle); |
| 10576 | |
| 10577 | nsContainerFrame* lastNewInline = |
| 10578 | static_cast<nsContainerFrame*>(aInitialInline->FirstContinuation()); |
| 10579 | do { |
| 10580 | // On entry to this loop aChildList is not empty and the first frame in it |
| 10581 | // is block-level. |
| 10582 | MOZ_ASSERT(aChildList.NotEmpty(), "Should have child items")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChildList.NotEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aChildList.NotEmpty()))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("aChildList.NotEmpty()" " (" "Should have child items" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10582); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildList.NotEmpty()" ") (" "Should have child items" ")"); do { MOZ_CrashSequence (__null, 10582); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 10583 | MOZ_ASSERT(aChildList.FirstChild()->IsBlockOutside(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChildList.FirstChild()->IsBlockOutside())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aChildList.FirstChild()->IsBlockOutside()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aChildList.FirstChild()->IsBlockOutside()" " (" "Must have list starting with block" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10584); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildList.FirstChild()->IsBlockOutside()" ") (" "Must have list starting with block" ")"); do { MOZ_CrashSequence (__null, 10584); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 10584 | "Must have list starting with block")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChildList.FirstChild()->IsBlockOutside())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aChildList.FirstChild()->IsBlockOutside()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aChildList.FirstChild()->IsBlockOutside()" " (" "Must have list starting with block" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10584); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChildList.FirstChild()->IsBlockOutside()" ") (" "Must have list starting with block" ")"); do { MOZ_CrashSequence (__null, 10584); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 10585 | |
| 10586 | // The initial run of blocks belongs to an anonymous block that we create |
| 10587 | // right now. The anonymous block will be the parent of these block |
| 10588 | // children of the inline. |
| 10589 | nsBlockFrame* blockFrame = NS_NewBlockFrame(mPresShell, blockSC); |
| 10590 | InitAndRestoreFrame(aState, content, parentFrame, blockFrame, |
| 10591 | AllowCounters::No); |
| 10592 | if (aInitialInline->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)) { |
| 10593 | blockFrame->AddStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR); |
| 10594 | } |
| 10595 | |
| 10596 | // Find the first non-block child which defines the end of our block kids |
| 10597 | // and the start of our next inline's kids |
| 10598 | nsFrameList blockKids = |
| 10599 | aChildList.Split([](nsIFrame* f) { return !f->IsBlockOutside(); }); |
| 10600 | |
| 10601 | if (!aInitialInline->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)) { |
| 10602 | MoveChildrenTo(aInitialInline, blockFrame, blockKids); |
| 10603 | |
| 10604 | SetFrameIsIBSplit(lastNewInline, blockFrame); |
| 10605 | aSiblings.AppendFrame(nullptr, blockFrame); |
| 10606 | } else { |
| 10607 | // Extract any initial non-column-span frames, and put them in |
| 10608 | // blockFrame's child list. |
| 10609 | nsFrameList initialNonColumnSpanKids = |
| 10610 | blockKids.Split([](nsIFrame* f) { return f->IsColumnSpan(); }); |
| 10611 | MoveChildrenTo(aInitialInline, blockFrame, initialNonColumnSpanKids); |
| 10612 | |
| 10613 | SetFrameIsIBSplit(lastNewInline, blockFrame); |
| 10614 | aSiblings.AppendFrame(nullptr, blockFrame); |
| 10615 | |
| 10616 | if (blockKids.NotEmpty()) { |
| 10617 | // Although SetFrameIsIBSplit() will add NS_FRAME_PART_OF_IBSPLIT for |
| 10618 | // blockFrame later, we manually add the bit earlier here to make all |
| 10619 | // the continuations of blockFrame created in |
| 10620 | // CreateColumnSpanSiblings(), i.e. non-column-span wrappers, have the |
| 10621 | // bit via nsIFrame::Init(). |
| 10622 | blockFrame->AddStateBits(NS_FRAME_PART_OF_IBSPLIT); |
| 10623 | |
| 10624 | nsFrameList columnSpanSiblings = |
| 10625 | CreateColumnSpanSiblings(aState, blockFrame, blockKids, |
| 10626 | aIsAbsPosCB ? aInitialInline : nullptr); |
| 10627 | aSiblings.AppendFrames(nullptr, std::move(columnSpanSiblings)); |
| 10628 | } |
| 10629 | } |
| 10630 | |
| 10631 | // Now grab the initial inlines in aChildList and put them into an inline |
| 10632 | // frame. |
| 10633 | nsInlineFrame* inlineFrame = NS_NewInlineFrame(mPresShell, computedStyle); |
| 10634 | InitAndRestoreFrame(aState, content, parentFrame, inlineFrame, |
| 10635 | AllowCounters::No); |
| 10636 | inlineFrame->AddStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN); |
| 10637 | if (aInitialInline->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)) { |
| 10638 | inlineFrame->AddStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR); |
| 10639 | } |
| 10640 | |
| 10641 | if (aIsAbsPosCB) { |
| 10642 | inlineFrame->MarkAsAbsoluteContainingBlock(); |
| 10643 | } |
| 10644 | |
| 10645 | if (aChildList.NotEmpty()) { |
| 10646 | nsFrameList inlineKids = |
| 10647 | aChildList.Split([](nsIFrame* f) { return f->IsBlockOutside(); }); |
| 10648 | MoveChildrenTo(aInitialInline, inlineFrame, inlineKids); |
| 10649 | } |
| 10650 | |
| 10651 | SetFrameIsIBSplit(blockFrame, inlineFrame); |
| 10652 | aSiblings.AppendFrame(nullptr, inlineFrame); |
| 10653 | lastNewInline = inlineFrame; |
| 10654 | } while (aChildList.NotEmpty()); |
| 10655 | |
| 10656 | SetFrameIsIBSplit(lastNewInline, nullptr); |
| 10657 | } |
| 10658 | |
| 10659 | void nsCSSFrameConstructor::BuildInlineChildItems( |
| 10660 | nsFrameConstructorState& aState, FrameConstructionItem& aParentItem, |
| 10661 | bool aItemIsWithinSVGText, bool aItemAllowsTextPathChild) { |
| 10662 | ComputedStyle* const parentStyle = aParentItem.mComputedStyle; |
| 10663 | nsIContent* const parentContent = aParentItem.mContent; |
| 10664 | |
| 10665 | if (!aItemIsWithinSVGText) { |
| 10666 | if (parentStyle->StyleDisplay()->IsListItem()) { |
| 10667 | CreateGeneratedContentItem(aState, nullptr, *parentContent->AsElement(), |
| 10668 | *parentStyle, PseudoStyleType::Marker, |
| 10669 | aParentItem.mChildItems); |
| 10670 | } |
| 10671 | // Probe for generated content before |
| 10672 | CreateGeneratedContentItem(aState, nullptr, *parentContent->AsElement(), |
| 10673 | *parentStyle, PseudoStyleType::Before, |
| 10674 | aParentItem.mChildItems); |
| 10675 | } |
| 10676 | |
| 10677 | ItemFlags flags; |
| 10678 | if (aItemIsWithinSVGText) { |
| 10679 | flags += ItemFlag::IsWithinSVGText; |
| 10680 | } |
| 10681 | if (aItemAllowsTextPathChild && |
| 10682 | aParentItem.mContent->IsSVGElement(nsGkAtoms::a)) { |
| 10683 | flags += ItemFlag::AllowTextPathChild; |
| 10684 | } |
| 10685 | |
| 10686 | FlattenedChildIterator iter(parentContent); |
| 10687 | for (nsIContent* content = iter.GetNextChild(); content; |
| 10688 | content = iter.GetNextChild()) { |
| 10689 | AddFrameConstructionItems(aState, content, iter.ShadowDOMInvolved(), |
| 10690 | *parentStyle, InsertionPoint(), |
| 10691 | aParentItem.mChildItems, flags); |
| 10692 | } |
| 10693 | |
| 10694 | if (!aItemIsWithinSVGText) { |
| 10695 | // Probe for generated content after |
| 10696 | CreateGeneratedContentItem(aState, nullptr, *parentContent->AsElement(), |
| 10697 | *parentStyle, PseudoStyleType::After, |
| 10698 | aParentItem.mChildItems); |
| 10699 | } |
| 10700 | |
| 10701 | aParentItem.mIsAllInline = aParentItem.mChildItems.AreAllItemsInline(); |
| 10702 | } |
| 10703 | |
| 10704 | // return whether it's ok to append (in the AppendFrames sense) to |
| 10705 | // aParentFrame if our nextSibling is aNextSibling. aParentFrame must |
| 10706 | // be an ib-split inline. |
| 10707 | static bool IsSafeToAppendToIBSplitInline(nsIFrame* aParentFrame, |
| 10708 | nsIFrame* aNextSibling) { |
| 10709 | MOZ_ASSERT(IsInlineFrame(aParentFrame), "Must have an inline parent here")do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsInlineFrame(aParentFrame))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsInlineFrame(aParentFrame)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("IsInlineFrame(aParentFrame)" " (" "Must have an inline parent here" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 10709); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsInlineFrame(aParentFrame)" ") (" "Must have an inline parent here" ")"); do { MOZ_CrashSequence (__null, 10709); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 10710 | |
| 10711 | do { |
| 10712 | NS_ASSERTION(IsFramePartOfIBSplit(aParentFrame),do { if (!(IsFramePartOfIBSplit(aParentFrame))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "How is this not part of an ib-split?", "IsFramePartOfIBSplit(aParentFrame)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 10713); MOZ_PretendNoReturn(); } } while (0) |
| 10713 | "How is this not part of an ib-split?")do { if (!(IsFramePartOfIBSplit(aParentFrame))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "How is this not part of an ib-split?", "IsFramePartOfIBSplit(aParentFrame)" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 10713); MOZ_PretendNoReturn(); } } while (0); |
| 10714 | if (aNextSibling || aParentFrame->GetNextContinuation() || |
| 10715 | GetIBSplitSibling(aParentFrame)) { |
| 10716 | return false; |
| 10717 | } |
| 10718 | |
| 10719 | aNextSibling = aParentFrame->GetNextSibling(); |
| 10720 | aParentFrame = aParentFrame->GetParent(); |
| 10721 | } while (IsInlineFrame(aParentFrame)); |
| 10722 | |
| 10723 | return true; |
| 10724 | } |
| 10725 | |
| 10726 | bool nsCSSFrameConstructor::WipeInsertionParent(nsContainerFrame* aFrame) { |
| 10727 | #define TRACE(reason) \ |
| 10728 | PROFILER_MARKER("WipeInsertionParent: " reason, LAYOUT, {}, Tracing, \do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("WipeInsertionParent: " reason, ::geckoprofiler::category::LAYOUT , {}, ::geckoprofiler::markers::Tracing{}, "Layout"); } } while (false); } while (false) |
| 10729 | "Layout")do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("WipeInsertionParent: " reason, ::geckoprofiler::category::LAYOUT , {}, ::geckoprofiler::markers::Tracing{}, "Layout"); } } while (false); } while (false); |
| 10730 | |
| 10731 | const LayoutFrameType frameType = aFrame->Type(); |
| 10732 | |
| 10733 | // FIXME(emilio): This looks terribly inefficient if you insert elements deep |
| 10734 | // in a MathML subtree. |
| 10735 | if (aFrame->IsMathMLFrame()) { |
| 10736 | TRACE("MathML"); |
| 10737 | RecreateFramesForContent(aFrame->GetContent(), InsertionKind::Async); |
| 10738 | return true; |
| 10739 | } |
| 10740 | |
| 10741 | // A ruby-related frame that's getting new children. |
| 10742 | // The situation for ruby is complex, especially when interacting with |
| 10743 | // spaces. It contains these two special cases apart from tables: |
| 10744 | // 1) There are effectively three types of white spaces in ruby frames |
| 10745 | // we handle differently: leading/tailing/inter-level space, |
| 10746 | // inter-base/inter-annotation space, and inter-segment space. |
| 10747 | // These three types of spaces can be converted to each other when |
| 10748 | // their sibling changes. |
| 10749 | // 2) The first effective child of a ruby frame must always be a ruby |
| 10750 | // base container. It should be created or destroyed accordingly. |
| 10751 | if (IsRubyPseudo(aFrame) || frameType == LayoutFrameType::Ruby || |
| 10752 | RubyUtils::IsRubyContainerBox(frameType)) { |
| 10753 | // We want to optimize it better, and avoid reframing as much as |
| 10754 | // possible. But given the cases above, and the fact that a ruby |
| 10755 | // usually won't be very large, it should be fine to reframe it. |
| 10756 | TRACE("Ruby"); |
| 10757 | RecreateFramesForContent(aFrame->GetContent(), InsertionKind::Async); |
| 10758 | return true; |
| 10759 | } |
| 10760 | |
| 10761 | // Reframe the multi-column container whenever elements insert/append |
| 10762 | // into it because we need to reconstruct column-span split. |
| 10763 | if (aFrame->IsColumnSetWrapperFrame()) { |
| 10764 | TRACE("Multi-column"); |
| 10765 | RecreateFramesForContent(aFrame->GetContent(), InsertionKind::Async); |
| 10766 | return true; |
| 10767 | } |
| 10768 | |
| 10769 | return false; |
| 10770 | |
| 10771 | #undef TRACE |
| 10772 | } |
| 10773 | |
| 10774 | bool nsCSSFrameConstructor::WipeContainingBlock( |
| 10775 | nsFrameConstructorState& aState, nsIFrame* aContainingBlock, |
| 10776 | nsIFrame* aFrame, FrameConstructionItemList& aItems, bool aIsAppend, |
| 10777 | nsIFrame* aPrevSibling) { |
| 10778 | #define TRACE(reason) \ |
| 10779 | PROFILER_MARKER("WipeContainingBlock: " reason, LAYOUT, {}, Tracing, \do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("WipeContainingBlock: " reason, ::geckoprofiler::category::LAYOUT , {}, ::geckoprofiler::markers::Tracing{}, "Layout"); } } while (false); } while (false) |
| 10780 | "Layout")do { ; do { if (profiler_is_collecting_markers()) { ::profiler_add_marker_impl ("WipeContainingBlock: " reason, ::geckoprofiler::category::LAYOUT , {}, ::geckoprofiler::markers::Tracing{}, "Layout"); } } while (false); } while (false); |
| 10781 | |
| 10782 | if (aItems.IsEmpty()) { |
| 10783 | return false; |
| 10784 | } |
| 10785 | |
| 10786 | // Before we go and append the frames, we must check for several |
| 10787 | // special situations. |
| 10788 | |
| 10789 | if (aFrame->GetContent() == mDocument->GetRootElement()) { |
| 10790 | // Situation #1 is when we insert content that becomes the canonical body |
| 10791 | // element, and its used WritingMode is different from the root element's |
| 10792 | // used WritingMode. |
| 10793 | // We need to reframe the root element so that the root element's frames has |
| 10794 | // the correct writing-mode propagated from body element. (See |
| 10795 | // nsCSSFrameConstructor::ConstructDocElementFrame.) |
| 10796 | // |
| 10797 | // Bug 1594297: When inserting a new <body>, we may need to reframe the old |
| 10798 | // <body> which has a "overflow" value other than simple "visible". But it's |
| 10799 | // tricky, see bug 1593752. |
| 10800 | nsIContent* bodyElement = mDocument->GetBodyElement(); |
| 10801 | for (FCItemIterator iter(aItems); !iter.IsDone(); iter.Next()) { |
| 10802 | const WritingMode bodyWM(iter.item().mComputedStyle); |
| 10803 | if (iter.item().mContent == bodyElement && |
| 10804 | bodyWM != aFrame->GetWritingMode()) { |
| 10805 | TRACE("Root"); |
| 10806 | RecreateFramesForContent(mDocument->GetRootElement(), |
| 10807 | InsertionKind::Async); |
| 10808 | return true; |
| 10809 | } |
| 10810 | } |
| 10811 | } |
| 10812 | |
| 10813 | nsIFrame* nextSibling = ::GetInsertNextSibling(aFrame, aPrevSibling); |
| 10814 | |
| 10815 | // Situation #2 is a flex / grid container frame into which we're inserting |
| 10816 | // new inline non-replaced children, adjacent to an existing anonymous flex or |
| 10817 | // grid item. |
| 10818 | if (aFrame->IsFlexOrGridContainer()) { |
| 10819 | FCItemIterator iter(aItems); |
| 10820 | |
| 10821 | // Check if we're adding to-be-wrapped content right *after* an existing |
| 10822 | // anonymous flex or grid item (which would need to absorb this content). |
| 10823 | const bool isLegacyWebKitBox = IsFlexContainerForLegacyWebKitBox(aFrame); |
| 10824 | if (aPrevSibling && IsAnonymousItem(aPrevSibling) && |
| 10825 | iter.item().NeedsAnonFlexOrGridItem(aState, isLegacyWebKitBox)) { |
| 10826 | TRACE("Inserting inline after anon flex or grid item"); |
| 10827 | RecreateFramesForContent(aFrame->GetContent(), InsertionKind::Async); |
| 10828 | return true; |
| 10829 | } |
| 10830 | |
| 10831 | // Check if we're adding to-be-wrapped content right *before* an existing |
| 10832 | // anonymous flex or grid item (which would need to absorb this content). |
| 10833 | if (nextSibling && IsAnonymousItem(nextSibling)) { |
| 10834 | // Jump to the last entry in the list |
| 10835 | iter.SetToEnd(); |
| 10836 | iter.Prev(); |
| 10837 | if (iter.item().NeedsAnonFlexOrGridItem(aState, isLegacyWebKitBox)) { |
| 10838 | TRACE("Inserting inline before anon flex or grid item"); |
| 10839 | RecreateFramesForContent(aFrame->GetContent(), InsertionKind::Async); |
| 10840 | return true; |
| 10841 | } |
| 10842 | } |
| 10843 | } |
| 10844 | |
| 10845 | // Situation #3 is an anonymous flex or grid item that's getting new children |
| 10846 | // who don't want to be wrapped. |
| 10847 | if (IsAnonymousItem(aFrame)) { |
| 10848 | AssertAnonymousFlexOrGridItemParent(aFrame); |
| 10849 | |
| 10850 | // We need to push a null float containing block to be sure that |
| 10851 | // "NeedsAnonFlexOrGridItem" will know we're not honoring floats for this |
| 10852 | // inserted content. (In particular, this is necessary in order for |
| 10853 | // its "GetGeometricParent" call to return the correct result.) |
| 10854 | // We're not honoring floats on this content because it has the |
| 10855 | // _flex/grid container_ as its parent in the content tree. |
| 10856 | nsFrameConstructorSaveState floatSaveState; |
| 10857 | aState.PushFloatContainingBlock(nullptr, floatSaveState); |
| 10858 | |
| 10859 | FCItemIterator iter(aItems); |
| 10860 | // Skip over things that _do_ need an anonymous flex item, because |
| 10861 | // they're perfectly happy to go here -- they won't cause a reframe. |
| 10862 | nsIFrame* containerFrame = aFrame->GetParent(); |
| 10863 | const bool isLegacyWebKitBox = |
| 10864 | IsFlexContainerForLegacyWebKitBox(containerFrame); |
| 10865 | if (!iter.SkipItemsThatNeedAnonFlexOrGridItem(aState, isLegacyWebKitBox)) { |
| 10866 | // We hit something that _doesn't_ need an anonymous flex item! |
| 10867 | // Rebuild the flex container to bust it out. |
| 10868 | TRACE("Inserting non-inlines inside anon flex or grid item"); |
| 10869 | RecreateFramesForContent(containerFrame->GetContent(), |
| 10870 | InsertionKind::Async); |
| 10871 | return true; |
| 10872 | } |
| 10873 | |
| 10874 | // If we get here, then everything in |aItems| needs to be wrapped in |
| 10875 | // an anonymous flex or grid item. That's where it's already going - good! |
| 10876 | } |
| 10877 | |
| 10878 | // Situation #4 is a case when table pseudo-frames don't work out right |
| 10879 | ParentType parentType = GetParentType(aFrame); |
| 10880 | // If all the kids want a parent of the type that aFrame is, then we're all |
| 10881 | // set to go. Indeed, there won't be any table pseudo-frames created between |
| 10882 | // aFrame and the kids, so those won't need to be merged with any table |
| 10883 | // pseudo-frames that might already be kids of aFrame. If aFrame itself is a |
| 10884 | // table pseudo-frame, then all the kids in this list would have wanted a |
| 10885 | // frame of that type wrapping them anyway, so putting them inside it is ok. |
| 10886 | if (!aItems.AllWantParentType(parentType)) { |
| 10887 | // Don't give up yet. If parentType is not eTypeBlock and the parent is |
| 10888 | // not a generated content frame, then try filtering whitespace out of the |
| 10889 | // list. |
| 10890 | if (parentType != eTypeBlock && !aFrame->IsGeneratedContentFrame()) { |
| 10891 | // For leading whitespace followed by a kid that wants our parent type, |
| 10892 | // there are four cases: |
| 10893 | // 1) We have a previous sibling which is not a table pseudo. That means |
| 10894 | // that previous sibling wanted a (non-block) parent of the type we're |
| 10895 | // looking at. Then the whitespace comes between two table-internal |
| 10896 | // elements, so should be collapsed out. |
| 10897 | // 2) We have a previous sibling which is a table pseudo. It might have |
| 10898 | // kids who want this whitespace, so we need to reframe. |
| 10899 | // 3) We have no previous sibling and our parent frame is not a table |
| 10900 | // pseudo. That means that we'll be at the beginning of our actual |
| 10901 | // non-block-type parent, and the whitespace is OK to collapse out. |
| 10902 | // If something is ever inserted before us, it'll find our own parent |
| 10903 | // as its parent and if it's something that would care about the |
| 10904 | // whitespace it'll want a block parent, so it'll trigger a reframe at |
| 10905 | // that point. |
| 10906 | // 4) We have no previous sibling and our parent frame is a table pseudo. |
| 10907 | // Need to reframe. |
| 10908 | // All that is predicated on finding the correct previous sibling. We |
| 10909 | // might have to walk backwards along continuations from aFrame to do so. |
| 10910 | // |
| 10911 | // It's always OK to drop whitespace between any two items that want a |
| 10912 | // parent of type parentType. |
| 10913 | // |
| 10914 | // For trailing whitespace preceded by a kid that wants our parent type, |
| 10915 | // there are four cases: |
| 10916 | // 1) We have a next sibling which is not a table pseudo. That means |
| 10917 | // that next sibling wanted a (non-block) parent of the type we're |
| 10918 | // looking at. Then the whitespace comes between two table-internal |
| 10919 | // elements, so should be collapsed out. |
| 10920 | // 2) We have a next sibling which is a table pseudo. It might have |
| 10921 | // kids who want this whitespace, so we need to reframe. |
| 10922 | // 3) We have no next sibling and our parent frame is not a table |
| 10923 | // pseudo. That means that we'll be at the end of our actual |
| 10924 | // non-block-type parent, and the whitespace is OK to collapse out. |
| 10925 | // If something is ever inserted after us, it'll find our own parent |
| 10926 | // as its parent and if it's something that would care about the |
| 10927 | // whitespace it'll want a block parent, so it'll trigger a reframe at |
| 10928 | // that point. |
| 10929 | // 4) We have no next sibling and our parent frame is a table pseudo. |
| 10930 | // Need to reframe. |
| 10931 | // All that is predicated on finding the correct next sibling. We might |
| 10932 | // have to walk forward along continuations from aFrame to do so. That |
| 10933 | // said, in the case when nextSibling is null at this point and aIsAppend |
| 10934 | // is true, we know we're in case 3. Furthermore, in that case we don't |
| 10935 | // even have to worry about the table pseudo situation; we know our |
| 10936 | // parent is not a table pseudo there. |
| 10937 | FCItemIterator iter(aItems); |
| 10938 | FCItemIterator start(iter); |
| 10939 | do { |
| 10940 | if (iter.SkipItemsWantingParentType(parentType)) { |
| 10941 | break; |
| 10942 | } |
| 10943 | |
| 10944 | // iter points to an item that wants a different parent. If it's not |
| 10945 | // whitespace, we're done; no more point scanning the list. |
| 10946 | if (!iter.item().IsWhitespace(aState)) { |
| 10947 | break; |
| 10948 | } |
| 10949 | |
| 10950 | if (iter == start) { |
| 10951 | // Leading whitespace. How to handle this depends on our |
| 10952 | // previous sibling and aFrame. See the long comment above. |
| 10953 | nsIFrame* prevSibling = aPrevSibling; |
| 10954 | if (!prevSibling) { |
| 10955 | // Try to find one after all |
| 10956 | nsIFrame* parentPrevCont = aFrame->GetPrevContinuation(); |
| 10957 | while (parentPrevCont) { |
| 10958 | prevSibling = parentPrevCont->PrincipalChildList().LastChild(); |
| 10959 | if (prevSibling) { |
| 10960 | break; |
| 10961 | } |
| 10962 | parentPrevCont = parentPrevCont->GetPrevContinuation(); |
| 10963 | } |
| 10964 | }; |
| 10965 | if (prevSibling) { |
| 10966 | if (IsTablePseudo(prevSibling)) { |
| 10967 | // need to reframe |
| 10968 | break; |
| 10969 | } |
| 10970 | } else if (IsTablePseudo(aFrame)) { |
| 10971 | // need to reframe |
| 10972 | break; |
| 10973 | } |
| 10974 | } |
| 10975 | |
| 10976 | FCItemIterator spaceEndIter(iter); |
| 10977 | // Advance spaceEndIter past any whitespace |
| 10978 | bool trailingSpaces = spaceEndIter.SkipWhitespace(aState); |
| 10979 | |
| 10980 | bool okToDrop; |
| 10981 | if (trailingSpaces) { |
| 10982 | // Trailing whitespace. How to handle this depeds on aIsAppend, our |
| 10983 | // next sibling and aFrame. See the long comment above. |
| 10984 | okToDrop = aIsAppend && !nextSibling; |
| 10985 | if (!okToDrop) { |
| 10986 | if (!nextSibling) { |
| 10987 | // Try to find one after all |
| 10988 | nsIFrame* parentNextCont = aFrame->GetNextContinuation(); |
| 10989 | while (parentNextCont) { |
| 10990 | nextSibling = parentNextCont->PrincipalChildList().FirstChild(); |
| 10991 | if (nextSibling) { |
| 10992 | break; |
| 10993 | } |
| 10994 | parentNextCont = parentNextCont->GetNextContinuation(); |
| 10995 | } |
| 10996 | } |
| 10997 | |
| 10998 | okToDrop = (nextSibling && !IsTablePseudo(nextSibling)) || |
| 10999 | (!nextSibling && !IsTablePseudo(aFrame)); |
| 11000 | } else { |
| 11001 | NS_ASSERTION(!IsTablePseudo(aFrame), "How did that happen?")do { if (!(!IsTablePseudo(aFrame))) { NS_DebugBreak(NS_DEBUG_ASSERTION , "How did that happen?", "!IsTablePseudo(aFrame)", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11001); MOZ_PretendNoReturn(); } } while (0); |
| 11002 | } |
| 11003 | } else { |
| 11004 | okToDrop = (spaceEndIter.item().DesiredParentType() == parentType); |
| 11005 | } |
| 11006 | |
| 11007 | if (okToDrop) { |
| 11008 | iter.DeleteItemsTo(this, spaceEndIter); |
| 11009 | } else { |
| 11010 | // We're done: we don't want to drop the whitespace, and it has the |
| 11011 | // wrong parent type. |
| 11012 | break; |
| 11013 | } |
| 11014 | |
| 11015 | // Now loop, since |iter| points to item right after the whitespace we |
| 11016 | // removed. |
| 11017 | } while (!iter.IsDone()); |
| 11018 | } |
| 11019 | |
| 11020 | // We might be able to figure out some sort of optimizations here, but they |
| 11021 | // would have to depend on having a correct aPrevSibling and a correct next |
| 11022 | // sibling. For example, we can probably avoid reframing if none of |
| 11023 | // aFrame, aPrevSibling, and next sibling are table pseudo-frames. But it |
| 11024 | // doesn't seem worth it to worry about that for now, especially since we |
| 11025 | // in fact do not have a reliable aPrevSibling, nor any next sibling, in |
| 11026 | // this method. |
| 11027 | |
| 11028 | // aItems might have changed, so recheck the parent type thing. In fact, |
| 11029 | // it might be empty, so recheck that too. |
| 11030 | if (aItems.IsEmpty()) { |
| 11031 | return false; |
| 11032 | } |
| 11033 | |
| 11034 | // If aFrame is empty, the insertion process will be able to take care of |
| 11035 | // creating any needed pseudo-parents. |
| 11036 | if (!aItems.AllWantParentType(parentType) && |
| 11037 | !SafeToInsertPseudoNeedingChildren(aFrame)) { |
| 11038 | // Reframing aFrame->GetContent() is good enough, since the content of |
| 11039 | // table pseudo-frames is the ancestor content. |
| 11040 | TRACE("Pseudo-frames going wrong"); |
| 11041 | RecreateFramesForContent(aFrame->GetContent(), InsertionKind::Async); |
| 11042 | return true; |
| 11043 | } |
| 11044 | } |
| 11045 | |
| 11046 | // Situation #5 is a frame in multicol subtree that's getting new children. |
| 11047 | if (aFrame->HasAnyStateBits(NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)) { |
| 11048 | bool anyColumnSpanItems = false; |
| 11049 | for (FCItemIterator iter(aItems); !iter.IsDone(); iter.Next()) { |
| 11050 | if (iter.item().mComputedStyle->StyleColumn()->IsColumnSpanStyle()) { |
| 11051 | anyColumnSpanItems = true; |
| 11052 | break; |
| 11053 | } |
| 11054 | } |
| 11055 | |
| 11056 | bool needsReframe = |
| 11057 | // 1. Insert / append any column-span children. |
| 11058 | anyColumnSpanItems || |
| 11059 | // 2. GetInsertionPrevSibling() modifies insertion parent. If the prev |
| 11060 | // sibling is a column-span, aFrame ends up being the |
| 11061 | // column-span-wrapper. |
| 11062 | aFrame->Style()->GetPseudoType() == |
| 11063 | PseudoStyleType::MozColumnSpanWrapper || |
| 11064 | // 3. Append into {ib} split container. There might be room for |
| 11065 | // optimization, but let's reframe for correctness... |
| 11066 | IsFramePartOfIBSplit(aFrame); |
| 11067 | |
| 11068 | if (needsReframe) { |
| 11069 | TRACE("Multi-column"); |
| 11070 | RecreateFramesForContent( |
| 11071 | GetMultiColumnContainingBlockFor(aFrame)->GetContent(), |
| 11072 | InsertionKind::Async); |
| 11073 | return true; |
| 11074 | } |
| 11075 | |
| 11076 | // If we get here, then we need further check for {ib} split to decide |
| 11077 | // whether to reframe. For example, appending a block into an empty inline |
| 11078 | // that is not part of an {ib} split, but should become an {ib} split. |
| 11079 | } |
| 11080 | |
| 11081 | // A <fieldset> may need to pick up a new rendered legend from aItems. |
| 11082 | // We currently can't handle this case without recreating frames for |
| 11083 | // the fieldset. |
| 11084 | // XXXmats we should be able to optimize this when the fieldset doesn't |
| 11085 | // currently have a rendered legend. ContentRangeInserted needs to be fixed |
| 11086 | // to use the inner frame as the content insertion frame in that case. |
| 11087 | if (const auto* fieldset = GetFieldSetFrameFor(aFrame)) { |
| 11088 | // Check if any item is eligible to be a rendered legend. |
| 11089 | for (FCItemIterator iter(aItems); !iter.IsDone(); iter.Next()) { |
| 11090 | const auto& item = iter.item(); |
| 11091 | if (!item.mContent->IsHTMLElement(nsGkAtoms::legend)) { |
| 11092 | continue; |
| 11093 | } |
| 11094 | const auto* display = item.mComputedStyle->StyleDisplay(); |
| 11095 | if (display->IsFloatingStyle() || |
| 11096 | display->IsAbsolutelyPositionedStyle()) { |
| 11097 | continue; |
| 11098 | } |
| 11099 | TRACE("Fieldset with rendered legend"); |
| 11100 | RecreateFramesForContent(fieldset->GetContent(), InsertionKind::Async); |
| 11101 | return true; |
| 11102 | } |
| 11103 | } |
| 11104 | |
| 11105 | // Now we have several cases involving {ib} splits. Put them all in a |
| 11106 | // do/while with breaks to take us to the "go and reconstruct" code. |
| 11107 | do { |
| 11108 | if (IsInlineFrame(aFrame)) { |
| 11109 | if (aItems.AreAllItemsInline()) { |
| 11110 | // We can just put the kids in. |
| 11111 | return false; |
| 11112 | } |
| 11113 | |
| 11114 | if (!IsFramePartOfIBSplit(aFrame)) { |
| 11115 | // Need to go ahead and reconstruct. |
| 11116 | break; |
| 11117 | } |
| 11118 | |
| 11119 | // Now we're adding kids including some blocks to an inline part of an |
| 11120 | // {ib} split. If we plan to call AppendFrames, and don't have a next |
| 11121 | // sibling for the new frames, and our parent is the last continuation of |
| 11122 | // the last part of the {ib} split, and the same is true of all our |
| 11123 | // ancestor inlines (they have no following continuations and they're the |
| 11124 | // last part of their {ib} splits and we'd be adding to the end for all |
| 11125 | // of them), then AppendFrames will handle things for us. Bail out in |
| 11126 | // that case. |
| 11127 | if (aIsAppend && IsSafeToAppendToIBSplitInline(aFrame, nextSibling)) { |
| 11128 | return false; |
| 11129 | } |
| 11130 | |
| 11131 | // Need to reconstruct. |
| 11132 | break; |
| 11133 | } |
| 11134 | |
| 11135 | // Now we know we have a block parent. If it's not part of an |
| 11136 | // ib-split, we're all set. |
| 11137 | if (!IsFramePartOfIBSplit(aFrame)) { |
| 11138 | return false; |
| 11139 | } |
| 11140 | |
| 11141 | // We're adding some kids to a block part of an {ib} split. If all the |
| 11142 | // kids are blocks, we don't need to reconstruct. |
| 11143 | if (aItems.AreAllItemsBlock()) { |
| 11144 | return false; |
| 11145 | } |
| 11146 | |
| 11147 | // We might have some inline kids for this block. Just fall out of the |
| 11148 | // loop and reconstruct. |
| 11149 | } while (false); |
| 11150 | |
| 11151 | // If we don't have a containing block, start with aFrame and look for one. |
| 11152 | if (!aContainingBlock) { |
| 11153 | aContainingBlock = aFrame; |
| 11154 | } |
| 11155 | |
| 11156 | // To find the right block to reframe, just walk up the tree until we find a |
| 11157 | // frame that is: |
| 11158 | // 1) Not part of an IB split |
| 11159 | // 2) Not a pseudo-frame |
| 11160 | // 3) Not an inline frame |
| 11161 | // We're guaranteed to find one, since ComputedStyle::ApplyStyleFixups |
| 11162 | // enforces that the root is display:none, display:table, or display:block. |
| 11163 | // Note that walking up "too far" is OK in terms of correctness, even if it |
| 11164 | // might be a little inefficient. This is why we walk out of all |
| 11165 | // pseudo-frames -- telling which ones are or are not OK to walk out of is |
| 11166 | // too hard (and I suspect that we do in fact need to walk out of all of |
| 11167 | // them). |
| 11168 | while (IsFramePartOfIBSplit(aContainingBlock) || |
| 11169 | aContainingBlock->IsInlineOutside() || |
| 11170 | aContainingBlock->Style()->IsPseudoOrAnonBox()) { |
| 11171 | aContainingBlock = aContainingBlock->GetParent(); |
| 11172 | NS_ASSERTION(aContainingBlock,do { if (!(aContainingBlock)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Must have non-inline, non-ib-split, non-pseudo frame as " "root (or child of root, for a table root)!" , "aContainingBlock", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11174); MOZ_PretendNoReturn(); } } while (0) |
| 11173 | "Must have non-inline, non-ib-split, non-pseudo frame as "do { if (!(aContainingBlock)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Must have non-inline, non-ib-split, non-pseudo frame as " "root (or child of root, for a table root)!" , "aContainingBlock", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11174); MOZ_PretendNoReturn(); } } while (0) |
| 11174 | "root (or child of root, for a table root)!")do { if (!(aContainingBlock)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Must have non-inline, non-ib-split, non-pseudo frame as " "root (or child of root, for a table root)!" , "aContainingBlock", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11174); MOZ_PretendNoReturn(); } } while (0); |
| 11175 | } |
| 11176 | |
| 11177 | // Tell parent of the containing block to reformulate the |
| 11178 | // entire block. This is painful and definitely not optimal |
| 11179 | // but it will *always* get the right answer. |
| 11180 | |
| 11181 | nsIContent* blockContent = aContainingBlock->GetContent(); |
| 11182 | TRACE("IB splits"); |
| 11183 | RecreateFramesForContent(blockContent, InsertionKind::Async); |
| 11184 | return true; |
| 11185 | #undef TRACE |
| 11186 | } |
| 11187 | |
| 11188 | void nsCSSFrameConstructor::ReframeContainingBlock(nsIFrame* aFrame) { |
| 11189 | // XXXbz how exactly would we get here while isReflowing anyway? Should this |
| 11190 | // whole test be ifdef DEBUG? |
| 11191 | if (mPresShell->IsReflowLocked()) { |
| 11192 | // don't ReframeContainingBlock, this will result in a crash |
| 11193 | // if we remove a tree that's in reflow - see bug 121368 for testcase |
| 11194 | NS_ERROR(do { NS_DebugBreak(NS_DEBUG_ASSERTION, "Atemptted to nsCSSFrameConstructor::ReframeContainingBlock during a " "Reflow!!!", "Error", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11196); MOZ_PretendNoReturn(); } while (0) |
| 11195 | "Atemptted to nsCSSFrameConstructor::ReframeContainingBlock during a "do { NS_DebugBreak(NS_DEBUG_ASSERTION, "Atemptted to nsCSSFrameConstructor::ReframeContainingBlock during a " "Reflow!!!", "Error", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11196); MOZ_PretendNoReturn(); } while (0) |
| 11196 | "Reflow!!!")do { NS_DebugBreak(NS_DEBUG_ASSERTION, "Atemptted to nsCSSFrameConstructor::ReframeContainingBlock during a " "Reflow!!!", "Error", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11196); MOZ_PretendNoReturn(); } while (0); |
| 11197 | return; |
| 11198 | } |
| 11199 | |
| 11200 | // Get the first "normal" ancestor of the target frame. |
| 11201 | nsIFrame* containingBlock = GetIBContainingBlockFor(aFrame); |
| 11202 | if (containingBlock) { |
| 11203 | // From here we look for the containing block in case the target |
| 11204 | // frame is already a block (which can happen when an inline frame |
| 11205 | // wraps some of its content in an anonymous block; see |
| 11206 | // ConstructInline) |
| 11207 | |
| 11208 | // NOTE: We used to get the FloatContainingBlock here, but it was often |
| 11209 | // wrong. GetIBContainingBlock works much better and provides the correct |
| 11210 | // container in all cases so GetFloatContainingBlock(aFrame) has been |
| 11211 | // removed |
| 11212 | |
| 11213 | // And get the containingBlock's content |
| 11214 | if (nsIContent* blockContent = containingBlock->GetContent()) { |
| 11215 | #ifdef DEBUG1 |
| 11216 | if (gNoisyContentUpdates) { |
| 11217 | printf(" ==> blockContent=%p\n", blockContent); |
| 11218 | } |
| 11219 | #endif |
| 11220 | RecreateFramesForContent(blockContent, InsertionKind::Async); |
| 11221 | return; |
| 11222 | } |
| 11223 | } |
| 11224 | |
| 11225 | // If we get here, we're screwed! |
| 11226 | RecreateFramesForContent(mPresShell->GetDocument()->GetRootElement(), |
| 11227 | InsertionKind::Async); |
| 11228 | } |
| 11229 | |
| 11230 | ////////////////////////////////////////////////////////// |
| 11231 | // nsCSSFrameConstructor::FrameConstructionItem methods // |
| 11232 | ////////////////////////////////////////////////////////// |
| 11233 | bool nsCSSFrameConstructor::FrameConstructionItem::IsWhitespace( |
| 11234 | nsFrameConstructorState& aState) const { |
| 11235 | MOZ_ASSERT(aState.mCreatingExtraFrames || !mContent->GetPrimaryFrame(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aState.mCreatingExtraFrames || !mContent->GetPrimaryFrame ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aState.mCreatingExtraFrames || !mContent->GetPrimaryFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aState.mCreatingExtraFrames || !mContent->GetPrimaryFrame()" " (" "How did that happen?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11236); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aState.mCreatingExtraFrames || !mContent->GetPrimaryFrame()" ") (" "How did that happen?" ")"); do { MOZ_CrashSequence(__null , 11236); __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false) |
| 11236 | "How did that happen?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aState.mCreatingExtraFrames || !mContent->GetPrimaryFrame ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aState.mCreatingExtraFrames || !mContent->GetPrimaryFrame ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aState.mCreatingExtraFrames || !mContent->GetPrimaryFrame()" " (" "How did that happen?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11236); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aState.mCreatingExtraFrames || !mContent->GetPrimaryFrame()" ") (" "How did that happen?" ")"); do { MOZ_CrashSequence(__null , 11236); __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 11237 | if (!mIsText) { |
| 11238 | return false; |
| 11239 | } |
| 11240 | // Set content whitespace flags, but not for generated content, where we |
| 11241 | // never expect to see these. |
| 11242 | if (!(aState.mAdditionalStateBits & NS_FRAME_GENERATED_CONTENT)) { |
| 11243 | mContent->SetFlags(NS_CREATE_FRAME_IF_NON_WHITESPACE | |
| 11244 | NS_REFRAME_IF_WHITESPACE); |
| 11245 | } |
| 11246 | return mContent->TextIsOnlyWhitespace(); |
| 11247 | } |
| 11248 | |
| 11249 | ////////////////////////////////////////////////////////////// |
| 11250 | // nsCSSFrameConstructor::FrameConstructionItemList methods // |
| 11251 | ////////////////////////////////////////////////////////////// |
| 11252 | void nsCSSFrameConstructor::FrameConstructionItemList::AdjustCountsForItem( |
| 11253 | FrameConstructionItem* aItem, int32_t aDelta) { |
| 11254 | MOZ_ASSERT(aDelta == 1 || aDelta == -1, "Unexpected delta")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDelta == 1 || aDelta == -1)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDelta == 1 || aDelta == -1) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aDelta == 1 || aDelta == -1" " (" "Unexpected delta" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11254); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDelta == 1 || aDelta == -1" ") (" "Unexpected delta" ")"); do { MOZ_CrashSequence(__null , 11254); __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 11255 | mItemCount += aDelta; |
| 11256 | if (aItem->mIsAllInline) { |
| 11257 | mInlineCount += aDelta; |
| 11258 | } |
| 11259 | if (aItem->mIsBlock) { |
| 11260 | mBlockCount += aDelta; |
| 11261 | } |
| 11262 | mDesiredParentCounts[aItem->DesiredParentType()] += aDelta; |
| 11263 | } |
| 11264 | |
| 11265 | //////////////////////////////////////////////////////////////////////// |
| 11266 | // nsCSSFrameConstructor::FrameConstructionItemList::Iterator methods // |
| 11267 | //////////////////////////////////////////////////////////////////////// |
| 11268 | inline bool nsCSSFrameConstructor::FrameConstructionItemList::Iterator:: |
| 11269 | SkipItemsWantingParentType(ParentType aParentType) { |
| 11270 | MOZ_ASSERT(!IsDone(), "Shouldn't be done yet")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsDone())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsDone()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsDone()" " (" "Shouldn't be done yet" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 11270 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsDone()" ") (" "Shouldn't be done yet" ")"); do { MOZ_CrashSequence(__null, 11270); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 11271 | while (item().DesiredParentType() == aParentType) { |
| 11272 | Next(); |
| 11273 | if (IsDone()) { |
| 11274 | return true; |
| 11275 | } |
| 11276 | } |
| 11277 | return false; |
| 11278 | } |
| 11279 | |
| 11280 | inline bool nsCSSFrameConstructor::FrameConstructionItemList::Iterator:: |
| 11281 | SkipItemsNotWantingParentType(ParentType aParentType) { |
| 11282 | MOZ_ASSERT(!IsDone(), "Shouldn't be done yet")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsDone())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsDone()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsDone()" " (" "Shouldn't be done yet" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 11282 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsDone()" ") (" "Shouldn't be done yet" ")"); do { MOZ_CrashSequence(__null, 11282); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 11283 | while (item().DesiredParentType() != aParentType) { |
| 11284 | Next(); |
| 11285 | if (IsDone()) { |
| 11286 | return true; |
| 11287 | } |
| 11288 | } |
| 11289 | return false; |
| 11290 | } |
| 11291 | |
| 11292 | // Note: we implement -webkit-{inline-}box using nsFlexContainerFrame, but we |
| 11293 | // use different rules for what gets wrapped in an anonymous flex item. |
| 11294 | bool nsCSSFrameConstructor::FrameConstructionItem::NeedsAnonFlexOrGridItem( |
| 11295 | const nsFrameConstructorState& aState, bool aIsLegacyWebKitBox) { |
| 11296 | if (mFCData->mBits & FCDATA_IS_LINE_PARTICIPANT0x2000) { |
| 11297 | // This will be an inline non-replaced box. |
| 11298 | return true; |
| 11299 | } |
| 11300 | |
| 11301 | if (aIsLegacyWebKitBox) { |
| 11302 | if (mComputedStyle->StyleDisplay()->IsInlineOutsideStyle()) { |
| 11303 | // In an emulated legacy box, all inline-level content gets wrapped in an |
| 11304 | // anonymous flex item. |
| 11305 | return true; |
| 11306 | } |
| 11307 | if (!(mFCData->mBits & FCDATA_DISALLOW_OUT_OF_FLOW0x8) && |
| 11308 | aState.GetGeometricParent(*mComputedStyle->StyleDisplay(), nullptr)) { |
| 11309 | // We're abspos or fixedpos (or a XUL popup), which means we'll spawn a |
| 11310 | // placeholder which (because our container is an emulated legacy box) |
| 11311 | // we'll need to wrap in an anonymous flex item. So, we just treat |
| 11312 | // _this_ frame as if _it_ needs to be wrapped in an anonymous flex item, |
| 11313 | // and then when we spawn the placeholder, it'll end up in the right |
| 11314 | // spot. |
| 11315 | return true; |
| 11316 | } |
| 11317 | } |
| 11318 | |
| 11319 | return false; |
| 11320 | } |
| 11321 | |
| 11322 | inline bool nsCSSFrameConstructor::FrameConstructionItemList::Iterator:: |
| 11323 | SkipItemsThatNeedAnonFlexOrGridItem(const nsFrameConstructorState& aState, |
| 11324 | bool aIsLegacyWebKitBox) { |
| 11325 | MOZ_ASSERT(!IsDone(), "Shouldn't be done yet")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsDone())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsDone()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsDone()" " (" "Shouldn't be done yet" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 11325 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsDone()" ") (" "Shouldn't be done yet" ")"); do { MOZ_CrashSequence(__null, 11325); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 11326 | while (item().NeedsAnonFlexOrGridItem(aState, aIsLegacyWebKitBox)) { |
| 11327 | Next(); |
| 11328 | if (IsDone()) { |
| 11329 | return true; |
| 11330 | } |
| 11331 | } |
| 11332 | return false; |
| 11333 | } |
| 11334 | |
| 11335 | inline bool nsCSSFrameConstructor::FrameConstructionItemList::Iterator:: |
| 11336 | SkipItemsThatDontNeedAnonFlexOrGridItem( |
| 11337 | const nsFrameConstructorState& aState, bool aIsLegacyWebKitBox) { |
| 11338 | MOZ_ASSERT(!IsDone(), "Shouldn't be done yet")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsDone())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsDone()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsDone()" " (" "Shouldn't be done yet" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 11338 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsDone()" ") (" "Shouldn't be done yet" ")"); do { MOZ_CrashSequence(__null, 11338); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 11339 | while (!(item().NeedsAnonFlexOrGridItem(aState, aIsLegacyWebKitBox))) { |
| 11340 | Next(); |
| 11341 | if (IsDone()) { |
| 11342 | return true; |
| 11343 | } |
| 11344 | } |
| 11345 | return false; |
| 11346 | } |
| 11347 | |
| 11348 | inline bool nsCSSFrameConstructor::FrameConstructionItemList::Iterator:: |
| 11349 | SkipItemsNotWantingRubyParent() { |
| 11350 | MOZ_ASSERT(!IsDone(), "Shouldn't be done yet")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsDone())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsDone()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsDone()" " (" "Shouldn't be done yet" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 11350 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsDone()" ") (" "Shouldn't be done yet" ")"); do { MOZ_CrashSequence(__null, 11350); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 11351 | while (!IsRubyParentType(item().DesiredParentType())) { |
| 11352 | Next(); |
| 11353 | if (IsDone()) { |
| 11354 | return true; |
| 11355 | } |
| 11356 | } |
| 11357 | return false; |
| 11358 | } |
| 11359 | |
| 11360 | inline bool |
| 11361 | nsCSSFrameConstructor::FrameConstructionItemList::Iterator::SkipWhitespace( |
| 11362 | nsFrameConstructorState& aState) { |
| 11363 | MOZ_ASSERT(!IsDone(), "Shouldn't be done yet")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsDone())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsDone()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsDone()" " (" "Shouldn't be done yet" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 11363 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsDone()" ") (" "Shouldn't be done yet" ")"); do { MOZ_CrashSequence(__null, 11363); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 11364 | MOZ_ASSERT(item().IsWhitespace(aState), "Not pointing to whitespace?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(item().IsWhitespace(aState))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(item().IsWhitespace(aState)) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("item().IsWhitespace(aState)" " (" "Not pointing to whitespace?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11364); AnnotateMozCrashReason("MOZ_ASSERT" "(" "item().IsWhitespace(aState)" ") (" "Not pointing to whitespace?" ")"); do { MOZ_CrashSequence (__null, 11364); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 11365 | do { |
| 11366 | Next(); |
| 11367 | if (IsDone()) { |
| 11368 | return true; |
| 11369 | } |
| 11370 | } while (item().IsWhitespace(aState)); |
| 11371 | |
| 11372 | return false; |
| 11373 | } |
| 11374 | |
| 11375 | void nsCSSFrameConstructor::FrameConstructionItemList::Iterator:: |
| 11376 | AppendItemToList(FrameConstructionItemList& aTargetList) { |
| 11377 | NS_ASSERTION(&aTargetList != &mList, "Unexpected call")do { if (!(&aTargetList != &mList)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Unexpected call", "&aTargetList != &mList", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11377); MOZ_PretendNoReturn(); } } while (0); |
| 11378 | MOZ_ASSERT(!IsDone(), "should not be done")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsDone())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsDone()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsDone()" " (" "should not be done" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 11378 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsDone()" ") (" "should not be done" ")"); do { MOZ_CrashSequence(__null, 11378); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 11379 | |
| 11380 | FrameConstructionItem* item = mCurrent; |
| 11381 | Next(); |
| 11382 | item->remove(); |
| 11383 | aTargetList.mItems.insertBack(item); |
| 11384 | |
| 11385 | mList.AdjustCountsForItem(item, -1); |
| 11386 | aTargetList.AdjustCountsForItem(item, 1); |
| 11387 | } |
| 11388 | |
| 11389 | void nsCSSFrameConstructor::FrameConstructionItemList::Iterator:: |
| 11390 | AppendItemsToList(nsCSSFrameConstructor* aFCtor, const Iterator& aEnd, |
| 11391 | FrameConstructionItemList& aTargetList) { |
| 11392 | NS_ASSERTION(&aTargetList != &mList, "Unexpected call")do { if (!(&aTargetList != &mList)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Unexpected call", "&aTargetList != &mList", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11392); MOZ_PretendNoReturn(); } } while (0); |
| 11393 | MOZ_ASSERT(&mList == &aEnd.mList, "End iterator for some other list?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(&mList == &aEnd.mList)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(&mList == &aEnd.mList ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "&mList == &aEnd.mList" " (" "End iterator for some other list?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 11393 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "&mList == &aEnd.mList" ") (" "End iterator for some other list?" ")"); do { MOZ_CrashSequence (__null, 11393); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 11394 | |
| 11395 | // We can't just move our guts to the other list if it already has |
| 11396 | // some information or if we're not moving our entire list. |
| 11397 | if (!AtStart() || !aEnd.IsDone() || !aTargetList.IsEmpty()) { |
| 11398 | do { |
| 11399 | AppendItemToList(aTargetList); |
| 11400 | } while (*this != aEnd); |
| 11401 | return; |
| 11402 | } |
| 11403 | |
| 11404 | // Move our entire list of items into the empty target list. |
| 11405 | aTargetList.mItems = std::move(mList.mItems); |
| 11406 | |
| 11407 | // Copy over the various counters |
| 11408 | aTargetList.mInlineCount = mList.mInlineCount; |
| 11409 | aTargetList.mBlockCount = mList.mBlockCount; |
| 11410 | aTargetList.mItemCount = mList.mItemCount; |
| 11411 | memcpy(aTargetList.mDesiredParentCounts, mList.mDesiredParentCounts, |
| 11412 | sizeof(aTargetList.mDesiredParentCounts)); |
| 11413 | |
| 11414 | // reset mList |
| 11415 | mList.Reset(aFCtor); |
| 11416 | |
| 11417 | // Point ourselves to aEnd, as advertised |
| 11418 | SetToEnd(); |
| 11419 | MOZ_ASSERT(*this == aEnd, "How did that happen?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(*this == aEnd)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(*this == aEnd))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("*this == aEnd" " (" "How did that happen?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11419); AnnotateMozCrashReason("MOZ_ASSERT" "(" "*this == aEnd" ") (" "How did that happen?" ")"); do { MOZ_CrashSequence(__null , 11419); __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 11420 | } |
| 11421 | |
| 11422 | void nsCSSFrameConstructor::FrameConstructionItemList::Iterator::InsertItem( |
| 11423 | FrameConstructionItem* aItem) { |
| 11424 | if (IsDone()) { |
| 11425 | mList.mItems.insertBack(aItem); |
| 11426 | } else { |
| 11427 | // Just insert the item before us. There's no magic here. |
| 11428 | mCurrent->setPrevious(aItem); |
| 11429 | } |
| 11430 | mList.AdjustCountsForItem(aItem, 1); |
| 11431 | |
| 11432 | MOZ_ASSERT(aItem->getNext() == mCurrent, "How did that happen?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aItem->getNext() == mCurrent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aItem->getNext() == mCurrent ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aItem->getNext() == mCurrent" " (" "How did that happen?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 11432 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aItem->getNext() == mCurrent" ") (" "How did that happen?" ")"); do { MOZ_CrashSequence(__null , 11432); __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 11433 | } |
| 11434 | |
| 11435 | void nsCSSFrameConstructor::FrameConstructionItemList::Iterator::DeleteItemsTo( |
| 11436 | nsCSSFrameConstructor* aFCtor, const Iterator& aEnd) { |
| 11437 | MOZ_ASSERT(&mList == &aEnd.mList, "End iterator for some other list?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(&mList == &aEnd.mList)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(&mList == &aEnd.mList ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "&mList == &aEnd.mList" " (" "End iterator for some other list?" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp", 11437 ); AnnotateMozCrashReason("MOZ_ASSERT" "(" "&mList == &aEnd.mList" ") (" "End iterator for some other list?" ")"); do { MOZ_CrashSequence (__null, 11437); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 11438 | MOZ_ASSERT(*this != aEnd, "Shouldn't be at aEnd yet")do { static_assert( mozilla::detail::AssertionConditionType< decltype(*this != aEnd)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(*this != aEnd))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("*this != aEnd" " (" "Shouldn't be at aEnd yet" ")", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11438); AnnotateMozCrashReason("MOZ_ASSERT" "(" "*this != aEnd" ") (" "Shouldn't be at aEnd yet" ")"); do { MOZ_CrashSequence (__null, 11438); __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 11439 | |
| 11440 | do { |
| 11441 | NS_ASSERTION(!IsDone(), "Ran off end of list?")do { if (!(!IsDone())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Ran off end of list?" , "!IsDone()", "./../../../layout/base/nsCSSFrameConstructor.cpp" , 11441); MOZ_PretendNoReturn(); } } while (0); |
| 11442 | FrameConstructionItem* item = mCurrent; |
| 11443 | Next(); |
| 11444 | item->remove(); |
| 11445 | mList.AdjustCountsForItem(item, -1); |
| 11446 | item->Delete(aFCtor); |
| 11447 | } while (*this != aEnd); |
| 11448 | } |
| 11449 | |
| 11450 | void nsCSSFrameConstructor::QuotesDirty() { |
| 11451 | mQuotesDirty = true; |
| 11452 | mPresShell->SetNeedLayoutFlush(); |
| 11453 | } |
| 11454 | |
| 11455 | void nsCSSFrameConstructor::CountersDirty() { |
| 11456 | mCountersDirty = true; |
| 11457 | mPresShell->SetNeedLayoutFlush(); |
| 11458 | } |
| 11459 | |
| 11460 | void* nsCSSFrameConstructor::AllocateFCItem() { |
| 11461 | void* item; |
| 11462 | if (mFirstFreeFCItem) { |
| 11463 | item = mFirstFreeFCItem; |
| 11464 | mFirstFreeFCItem = mFirstFreeFCItem->mNext; |
| 11465 | } else { |
| 11466 | item = mFCItemPool.Allocate(sizeof(FrameConstructionItem)); |
| 11467 | } |
| 11468 | ++mFCItemsInUse; |
| 11469 | return item; |
| 11470 | } |
| 11471 | |
| 11472 | void nsCSSFrameConstructor::FreeFCItem(FrameConstructionItem* aItem) { |
| 11473 | MOZ_ASSERT(mFCItemsInUse != 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mFCItemsInUse != 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mFCItemsInUse != 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mFCItemsInUse != 0" , "./../../../layout/base/nsCSSFrameConstructor.cpp", 11473); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mFCItemsInUse != 0" ")"); do { MOZ_CrashSequence(__null, 11473); __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 11474 | if (--mFCItemsInUse == 0) { |
| 11475 | // The arena is now unused - clear it but retain one chunk. |
| 11476 | mFirstFreeFCItem = nullptr; |
| 11477 | mFCItemPool.Clear(); |
| 11478 | } else { |
| 11479 | // Prepend it to the list of free items. |
| 11480 | FreeFCItemLink* item = reinterpret_cast<FreeFCItemLink*>(aItem); |
| 11481 | item->mNext = mFirstFreeFCItem; |
| 11482 | mFirstFreeFCItem = item; |
| 11483 | } |
| 11484 | } |
| 11485 | |
| 11486 | void nsCSSFrameConstructor::AddSizeOfIncludingThis( |
| 11487 | nsWindowSizes& aSizes) const { |
| 11488 | if (nsIFrame* rootFrame = GetRootFrame()) { |
| 11489 | rootFrame->AddSizeOfExcludingThisForTree(aSizes); |
| 11490 | if (RetainedDisplayListBuilder* builder = |
| 11491 | rootFrame->GetProperty(RetainedDisplayListBuilder::Cached())) { |
| 11492 | builder->AddSizeOfIncludingThis(aSizes); |
| 11493 | } |
| 11494 | } |
| 11495 | |
| 11496 | // This must be done after measuring from the frame tree, since frame |
| 11497 | // manager will measure sizes of staled computed values and style |
| 11498 | // structs, which only make sense after we know what are being used. |
| 11499 | nsFrameManager::AddSizeOfIncludingThis(aSizes); |
| 11500 | |
| 11501 | // Measurement of the following members may be added later if DMD finds it |
| 11502 | // is worthwhile: |
| 11503 | // - mFCItemPool |
| 11504 | // - mContainStyleScopeManager |
| 11505 | } |