| File: | var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp |
| Warning: | line 8630, column 7 Value stored to 'result' is never read |
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| 1 | /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| 2 | /* vim: set ts=8 sts=2 et sw=2 tw=80: */ |
| 3 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| 4 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| 5 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| 6 | |
| 7 | /* base class of all rendering objects */ |
| 8 | |
| 9 | #include "nsIFrame.h" |
| 10 | |
| 11 | #include <stdarg.h> |
| 12 | #include <algorithm> |
| 13 | |
| 14 | #include "gfx2DGlue.h" |
| 15 | #include "gfxUtils.h" |
| 16 | #include "mozilla/Attributes.h" |
| 17 | #include "mozilla/ComputedStyle.h" |
| 18 | #include "mozilla/DebugOnly.h" |
| 19 | #include "mozilla/DisplayPortUtils.h" |
| 20 | #include "mozilla/EventForwards.h" |
| 21 | #include "mozilla/dom/CSSAnimation.h" |
| 22 | #include "mozilla/dom/CSSTransition.h" |
| 23 | #include "mozilla/dom/ContentVisibilityAutoStateChangeEvent.h" |
| 24 | #include "mozilla/dom/DocumentInlines.h" |
| 25 | #include "mozilla/dom/AncestorIterator.h" |
| 26 | #include "mozilla/dom/ElementInlines.h" |
| 27 | #include "mozilla/dom/ImageTracker.h" |
| 28 | #include "mozilla/dom/Selection.h" |
| 29 | #include "mozilla/gfx/2D.h" |
| 30 | #include "mozilla/gfx/PathHelpers.h" |
| 31 | #include "mozilla/IntegerRange.h" |
| 32 | #include "mozilla/intl/BidiEmbeddingLevel.h" |
| 33 | #include "mozilla/Maybe.h" |
| 34 | #include "mozilla/PresShell.h" |
| 35 | #include "mozilla/PresShellInlines.h" |
| 36 | #include "mozilla/ResultExtensions.h" |
| 37 | #include "mozilla/Sprintf.h" |
| 38 | #include "mozilla/StaticAnalysisFunctions.h" |
| 39 | #include "mozilla/StaticPrefs_layout.h" |
| 40 | #include "mozilla/StaticPrefs_print.h" |
| 41 | #include "mozilla/StaticPrefs_ui.h" |
| 42 | #include "mozilla/SVGMaskFrame.h" |
| 43 | #include "mozilla/SVGObserverUtils.h" |
| 44 | #include "mozilla/SVGTextFrame.h" |
| 45 | #include "mozilla/SVGIntegrationUtils.h" |
| 46 | #include "mozilla/SVGUtils.h" |
| 47 | #include "mozilla/TextControlElement.h" |
| 48 | #include "mozilla/ToString.h" |
| 49 | #include "mozilla/Try.h" |
| 50 | #include "mozilla/ViewportUtils.h" |
| 51 | |
| 52 | #include "nsCOMPtr.h" |
| 53 | #include "nsFieldSetFrame.h" |
| 54 | #include "nsFlexContainerFrame.h" |
| 55 | #include "nsFocusManager.h" |
| 56 | #include "nsFrameList.h" |
| 57 | #include "nsPlaceholderFrame.h" |
| 58 | #include "nsIBaseWindow.h" |
| 59 | #include "nsIContent.h" |
| 60 | #include "nsIContentInlines.h" |
| 61 | #include "nsContentUtils.h" |
| 62 | #include "nsCSSFrameConstructor.h" |
| 63 | #include "nsCSSProps.h" |
| 64 | #include "nsCSSPseudoElements.h" |
| 65 | #include "nsCSSRendering.h" |
| 66 | #include "nsAtom.h" |
| 67 | #include "nsString.h" |
| 68 | #include "nsReadableUtils.h" |
| 69 | #include "nsTableWrapperFrame.h" |
| 70 | #include "nsView.h" |
| 71 | #include "nsViewManager.h" |
| 72 | #include "nsIScrollableFrame.h" |
| 73 | #include "nsPresContext.h" |
| 74 | #include "nsPresContextInlines.h" |
| 75 | #include "nsStyleConsts.h" |
| 76 | #include "mozilla/Logging.h" |
| 77 | #include "nsLayoutUtils.h" |
| 78 | #include "LayoutLogging.h" |
| 79 | #include "mozilla/RestyleManager.h" |
| 80 | #include "nsImageFrame.h" |
| 81 | #include "nsInlineFrame.h" |
| 82 | #include "nsFrameSelection.h" |
| 83 | #include "nsGkAtoms.h" |
| 84 | #include "nsGridContainerFrame.h" |
| 85 | #include "nsGfxScrollFrame.h" |
| 86 | #include "nsCSSAnonBoxes.h" |
| 87 | #include "nsCanvasFrame.h" |
| 88 | |
| 89 | #include "nsFieldSetFrame.h" |
| 90 | #include "nsFrameTraversal.h" |
| 91 | #include "nsRange.h" |
| 92 | #include "nsITextControlFrame.h" |
| 93 | #include "nsNameSpaceManager.h" |
| 94 | #include "nsIPercentBSizeObserver.h" |
| 95 | #include "nsStyleStructInlines.h" |
| 96 | |
| 97 | #include "nsBidiPresUtils.h" |
| 98 | #include "RubyUtils.h" |
| 99 | #include "TextOverflow.h" |
| 100 | #include "nsAnimationManager.h" |
| 101 | |
| 102 | // For triple-click pref |
| 103 | #include "imgIRequest.h" |
| 104 | #include "nsError.h" |
| 105 | #include "nsContainerFrame.h" |
| 106 | #include "nsBlockFrame.h" |
| 107 | #include "nsDisplayList.h" |
| 108 | #include "nsChangeHint.h" |
| 109 | #include "nsSubDocumentFrame.h" |
| 110 | #include "RetainedDisplayListBuilder.h" |
| 111 | |
| 112 | #include "gfxContext.h" |
| 113 | #include "nsAbsoluteContainingBlock.h" |
| 114 | #include "ScrollSnap.h" |
| 115 | #include "StickyScrollContainer.h" |
| 116 | #include "nsFontInflationData.h" |
| 117 | #include "nsRegion.h" |
| 118 | #include "nsIFrameInlines.h" |
| 119 | #include "nsStyleChangeList.h" |
| 120 | #include "nsWindowSizes.h" |
| 121 | |
| 122 | #ifdef ACCESSIBILITY1 |
| 123 | # include "nsAccessibilityService.h" |
| 124 | #endif |
| 125 | |
| 126 | #include "mozilla/AsyncEventDispatcher.h" |
| 127 | #include "mozilla/CSSClipPathInstance.h" |
| 128 | #include "mozilla/EffectCompositor.h" |
| 129 | #include "mozilla/EffectSet.h" |
| 130 | #include "mozilla/EventListenerManager.h" |
| 131 | #include "mozilla/EventStateManager.h" |
| 132 | #include "mozilla/Preferences.h" |
| 133 | #include "mozilla/LookAndFeel.h" |
| 134 | #include "mozilla/MouseEvents.h" |
| 135 | #include "mozilla/ServoStyleSet.h" |
| 136 | #include "mozilla/ServoStyleSetInlines.h" |
| 137 | #include "mozilla/css/ImageLoader.h" |
| 138 | #include "mozilla/dom/HTMLBodyElement.h" |
| 139 | #include "mozilla/dom/SVGPathData.h" |
| 140 | #include "mozilla/dom/TouchEvent.h" |
| 141 | #include "mozilla/gfx/Tools.h" |
| 142 | #include "mozilla/layers/WebRenderUserData.h" |
| 143 | #include "mozilla/layout/ScrollAnchorContainer.h" |
| 144 | #include "nsPrintfCString.h" |
| 145 | #include "ActiveLayerTracker.h" |
| 146 | |
| 147 | #include "nsITheme.h" |
| 148 | |
| 149 | using namespace mozilla; |
| 150 | using namespace mozilla::css; |
| 151 | using namespace mozilla::dom; |
| 152 | using namespace mozilla::gfx; |
| 153 | using namespace mozilla::layers; |
| 154 | using namespace mozilla::layout; |
| 155 | typedef nsAbsoluteContainingBlock::AbsPosReflowFlags AbsPosReflowFlags; |
| 156 | using nsStyleTransformMatrix::TransformReferenceBox; |
| 157 | |
| 158 | nsIFrame* nsILineIterator::LineInfo::GetLastFrameOnLine() const { |
| 159 | if (!mNumFramesOnLine) { |
| 160 | return nullptr; // empty line, not illegal |
| 161 | } |
| 162 | MOZ_ASSERT(mFirstFrameOnLine)do { static_assert( mozilla::detail::AssertionConditionType< decltype(mFirstFrameOnLine)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mFirstFrameOnLine))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mFirstFrameOnLine" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 162); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mFirstFrameOnLine" ")"); do { *((volatile int*)__null) = 162; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 163 | nsIFrame* maybeLastFrame = mFirstFrameOnLine; |
| 164 | for ([[maybe_unused]] int32_t i : IntegerRange(mNumFramesOnLine - 1)) { |
| 165 | maybeLastFrame = maybeLastFrame->GetNextSibling(); |
| 166 | if (NS_WARN_IF(!maybeLastFrame)NS_warn_if_impl(!maybeLastFrame, "!maybeLastFrame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 166)) { |
| 167 | return nullptr; |
| 168 | } |
| 169 | } |
| 170 | return maybeLastFrame; |
| 171 | } |
| 172 | |
| 173 | #ifdef HAVE_64BIT_BUILD1 |
| 174 | static_assert(sizeof(nsIFrame) == 120, "nsIFrame should remain small"); |
| 175 | #else |
| 176 | static_assert(sizeof(void*) == 4, "Odd build config?"); |
| 177 | // FIXME(emilio): Investigate why win32 and android-arm32 have bigger sizes (80) |
| 178 | // than Linux32 (76). |
| 179 | static_assert(sizeof(nsIFrame) <= 80, "nsIFrame should remain small"); |
| 180 | #endif |
| 181 | |
| 182 | const mozilla::LayoutFrameType nsIFrame::sLayoutFrameTypes[kFrameClassCount] = { |
| 183 | #define FRAME_ID(class_, type_, ...) mozilla::LayoutFrameType::type_, |
| 184 | #define ABSTRACT_FRAME_ID(...) |
| 185 | #include "mozilla/FrameIdList.h" |
| 186 | #undef FRAME_ID |
| 187 | #undef ABSTRACT_FRAME_ID |
| 188 | }; |
| 189 | |
| 190 | const nsIFrame::ClassFlags nsIFrame::sLayoutFrameClassFlags[kFrameClassCount] = |
| 191 | { |
| 192 | #define FRAME_ID(class_, type_, flags_, ...) flags_, |
| 193 | #define ABSTRACT_FRAME_ID(...) |
| 194 | #include "mozilla/FrameIdList.h" |
| 195 | #undef FRAME_ID |
| 196 | #undef ABSTRACT_FRAME_ID |
| 197 | }; |
| 198 | |
| 199 | std::ostream& operator<<(std::ostream& aStream, const nsDirection& aDirection) { |
| 200 | return aStream << (aDirection == eDirNext ? "eDirNext" : "eDirPrevious"); |
| 201 | } |
| 202 | |
| 203 | struct nsContentAndOffset { |
| 204 | nsIContent* mContent = nullptr; |
| 205 | int32_t mOffset = 0; |
| 206 | }; |
| 207 | |
| 208 | // Some Misc #defines |
| 209 | #define SELECTION_DEBUG0 0 |
| 210 | #define FORCE_SELECTION_UPDATE1 1 |
| 211 | #define CALC_DEBUG0 0 |
| 212 | |
| 213 | #include "nsILineIterator.h" |
| 214 | #include "prenv.h" |
| 215 | |
| 216 | // Utility function to set a nsRect-valued property table entry on aFrame, |
| 217 | // reusing the existing storage if the property happens to be already set. |
| 218 | template <typename T> |
| 219 | static void SetOrUpdateRectValuedProperty( |
| 220 | nsIFrame* aFrame, FrameProperties::Descriptor<T> aProperty, |
| 221 | const nsRect& aNewValue) { |
| 222 | bool found; |
| 223 | nsRect* rectStorage = aFrame->GetProperty(aProperty, &found); |
| 224 | if (!found) { |
| 225 | rectStorage = new nsRect(aNewValue); |
| 226 | aFrame->AddProperty(aProperty, rectStorage); |
| 227 | } else { |
| 228 | *rectStorage = aNewValue; |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | FrameDestroyContext::~FrameDestroyContext() { |
| 233 | for (auto& content : mozilla::Reversed(mAnonymousContent)) { |
| 234 | mPresShell->NativeAnonymousContentRemoved(content); |
| 235 | content->UnbindFromTree(); |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | // Formerly the nsIFrameDebug interface |
| 240 | |
| 241 | std::ostream& operator<<(std::ostream& aStream, const nsReflowStatus& aStatus) { |
| 242 | char complete = 'Y'; |
| 243 | if (aStatus.IsIncomplete()) { |
| 244 | complete = 'N'; |
| 245 | } else if (aStatus.IsOverflowIncomplete()) { |
| 246 | complete = 'O'; |
| 247 | } |
| 248 | |
| 249 | char brk = 'N'; |
| 250 | if (aStatus.IsInlineBreakBefore()) { |
| 251 | brk = 'B'; |
| 252 | } else if (aStatus.IsInlineBreakAfter()) { |
| 253 | brk = 'A'; |
| 254 | } |
| 255 | |
| 256 | aStream << "[" |
| 257 | << "Complete=" << complete << "," |
| 258 | << "NIF=" << (aStatus.NextInFlowNeedsReflow() ? 'Y' : 'N') << "," |
| 259 | << "Break=" << brk << "," |
| 260 | << "FirstLetter=" << (aStatus.FirstLetterComplete() ? 'Y' : 'N') |
| 261 | << "]"; |
| 262 | return aStream; |
| 263 | } |
| 264 | |
| 265 | #ifdef DEBUG1 |
| 266 | |
| 267 | /** |
| 268 | * Note: the log module is created during library initialization which |
| 269 | * means that you cannot perform logging before then. |
| 270 | */ |
| 271 | mozilla::LazyLogModule nsIFrame::sFrameLogModule("frame"); |
| 272 | |
| 273 | #endif |
| 274 | |
| 275 | NS_DECLARE_FRAME_PROPERTY_DELETABLE(AbsoluteContainingBlockProperty,static const mozilla::FramePropertyDescriptor<nsAbsoluteContainingBlock >* AbsoluteContainingBlockProperty() { static const auto descriptor = mozilla::FramePropertyDescriptor<nsAbsoluteContainingBlock >::NewWithDestructor<DeleteValue>(); return &descriptor ; } |
| 276 | nsAbsoluteContainingBlock)static const mozilla::FramePropertyDescriptor<nsAbsoluteContainingBlock >* AbsoluteContainingBlockProperty() { static const auto descriptor = mozilla::FramePropertyDescriptor<nsAbsoluteContainingBlock >::NewWithDestructor<DeleteValue>(); return &descriptor ; } |
| 277 | |
| 278 | bool nsIFrame::HasAbsolutelyPositionedChildren() const { |
| 279 | return IsAbsoluteContainer() && |
| 280 | GetAbsoluteContainingBlock()->HasAbsoluteFrames(); |
| 281 | } |
| 282 | |
| 283 | nsAbsoluteContainingBlock* nsIFrame::GetAbsoluteContainingBlock() const { |
| 284 | NS_ASSERTION(IsAbsoluteContainer(),do { if (!(IsAbsoluteContainer())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "The frame is not marked as an abspos container correctly", "IsAbsoluteContainer()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 285); MOZ_PretendNoReturn(); } } while (0) |
| 285 | "The frame is not marked as an abspos container correctly")do { if (!(IsAbsoluteContainer())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "The frame is not marked as an abspos container correctly", "IsAbsoluteContainer()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 285); MOZ_PretendNoReturn(); } } while (0); |
| 286 | nsAbsoluteContainingBlock* absCB = |
| 287 | GetProperty(AbsoluteContainingBlockProperty()); |
| 288 | NS_ASSERTION(absCB,do { if (!(absCB)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "The frame is marked as an abspos container but doesn't have " "the property", "absCB", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 290); MOZ_PretendNoReturn(); } } while (0) |
| 289 | "The frame is marked as an abspos container but doesn't have "do { if (!(absCB)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "The frame is marked as an abspos container but doesn't have " "the property", "absCB", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 290); MOZ_PretendNoReturn(); } } while (0) |
| 290 | "the property")do { if (!(absCB)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "The frame is marked as an abspos container but doesn't have " "the property", "absCB", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 290); MOZ_PretendNoReturn(); } } while (0); |
| 291 | return absCB; |
| 292 | } |
| 293 | |
| 294 | void nsIFrame::MarkAsAbsoluteContainingBlock() { |
| 295 | MOZ_ASSERT(HasAnyStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN))do { static_assert( mozilla::detail::AssertionConditionType< decltype(HasAnyStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(HasAnyStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("HasAnyStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 295); AnnotateMozCrashReason("MOZ_ASSERT" "(" "HasAnyStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)" ")"); do { *((volatile int*)__null) = 295; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 296 | NS_ASSERTION(!GetProperty(AbsoluteContainingBlockProperty()),do { if (!(!GetProperty(AbsoluteContainingBlockProperty()))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Already has an abs-pos containing block property?" , "!GetProperty(AbsoluteContainingBlockProperty())", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 297); MOZ_PretendNoReturn(); } } while (0) |
| 297 | "Already has an abs-pos containing block property?")do { if (!(!GetProperty(AbsoluteContainingBlockProperty()))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Already has an abs-pos containing block property?" , "!GetProperty(AbsoluteContainingBlockProperty())", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 297); MOZ_PretendNoReturn(); } } while (0); |
| 298 | NS_ASSERTION(!HasAnyStateBits(NS_FRAME_HAS_ABSPOS_CHILDREN),do { if (!(!HasAnyStateBits(NS_FRAME_HAS_ABSPOS_CHILDREN))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Already has NS_FRAME_HAS_ABSPOS_CHILDREN state bit?" , "!HasAnyStateBits(NS_FRAME_HAS_ABSPOS_CHILDREN)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 299); MOZ_PretendNoReturn(); } } while (0) |
| 299 | "Already has NS_FRAME_HAS_ABSPOS_CHILDREN state bit?")do { if (!(!HasAnyStateBits(NS_FRAME_HAS_ABSPOS_CHILDREN))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Already has NS_FRAME_HAS_ABSPOS_CHILDREN state bit?" , "!HasAnyStateBits(NS_FRAME_HAS_ABSPOS_CHILDREN)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 299); MOZ_PretendNoReturn(); } } while (0); |
| 300 | AddStateBits(NS_FRAME_HAS_ABSPOS_CHILDREN); |
| 301 | SetProperty(AbsoluteContainingBlockProperty(), |
| 302 | new nsAbsoluteContainingBlock(GetAbsoluteListID())); |
| 303 | } |
| 304 | |
| 305 | void nsIFrame::MarkAsNotAbsoluteContainingBlock() { |
| 306 | NS_ASSERTION(!HasAbsolutelyPositionedChildren(), "Think of the children!")do { if (!(!HasAbsolutelyPositionedChildren())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Think of the children!", "!HasAbsolutelyPositionedChildren()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 306); MOZ_PretendNoReturn(); } } while (0); |
| 307 | NS_ASSERTION(GetProperty(AbsoluteContainingBlockProperty()),do { if (!(GetProperty(AbsoluteContainingBlockProperty()))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Should have an abs-pos containing block property" , "GetProperty(AbsoluteContainingBlockProperty())", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 308); MOZ_PretendNoReturn(); } } while (0) |
| 308 | "Should have an abs-pos containing block property")do { if (!(GetProperty(AbsoluteContainingBlockProperty()))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Should have an abs-pos containing block property" , "GetProperty(AbsoluteContainingBlockProperty())", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 308); MOZ_PretendNoReturn(); } } while (0); |
| 309 | NS_ASSERTION(HasAnyStateBits(NS_FRAME_HAS_ABSPOS_CHILDREN),do { if (!(HasAnyStateBits(NS_FRAME_HAS_ABSPOS_CHILDREN))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Should have NS_FRAME_HAS_ABSPOS_CHILDREN state bit" , "HasAnyStateBits(NS_FRAME_HAS_ABSPOS_CHILDREN)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 310); MOZ_PretendNoReturn(); } } while (0) |
| 310 | "Should have NS_FRAME_HAS_ABSPOS_CHILDREN state bit")do { if (!(HasAnyStateBits(NS_FRAME_HAS_ABSPOS_CHILDREN))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Should have NS_FRAME_HAS_ABSPOS_CHILDREN state bit" , "HasAnyStateBits(NS_FRAME_HAS_ABSPOS_CHILDREN)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 310); MOZ_PretendNoReturn(); } } while (0); |
| 311 | MOZ_ASSERT(HasAnyStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN))do { static_assert( mozilla::detail::AssertionConditionType< decltype(HasAnyStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(HasAnyStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN))) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("HasAnyStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 311); AnnotateMozCrashReason("MOZ_ASSERT" "(" "HasAnyStateBits(NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN)" ")"); do { *((volatile int*)__null) = 311; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 312 | RemoveStateBits(NS_FRAME_HAS_ABSPOS_CHILDREN); |
| 313 | RemoveProperty(AbsoluteContainingBlockProperty()); |
| 314 | } |
| 315 | |
| 316 | bool nsIFrame::CheckAndClearPaintedState() { |
| 317 | bool result = HasAnyStateBits(NS_FRAME_PAINTED_THEBES); |
| 318 | RemoveStateBits(NS_FRAME_PAINTED_THEBES); |
| 319 | |
| 320 | for (const auto& childList : ChildLists()) { |
| 321 | for (nsIFrame* child : childList.mList) { |
| 322 | if (child->CheckAndClearPaintedState()) { |
| 323 | result = true; |
| 324 | } |
| 325 | } |
| 326 | } |
| 327 | return result; |
| 328 | } |
| 329 | |
| 330 | bool nsIFrame::CheckAndClearDisplayListState() { |
| 331 | bool result = BuiltDisplayList(); |
| 332 | SetBuiltDisplayList(false); |
| 333 | |
| 334 | for (const auto& childList : ChildLists()) { |
| 335 | for (nsIFrame* child : childList.mList) { |
| 336 | if (child->CheckAndClearDisplayListState()) { |
| 337 | result = true; |
| 338 | } |
| 339 | } |
| 340 | } |
| 341 | return result; |
| 342 | } |
| 343 | |
| 344 | bool nsIFrame::IsVisibleConsideringAncestors(uint32_t aFlags) const { |
| 345 | if (!StyleVisibility()->IsVisible()) { |
| 346 | return false; |
| 347 | } |
| 348 | |
| 349 | if (PresShell()->IsUnderHiddenEmbedderElement()) { |
| 350 | return false; |
| 351 | } |
| 352 | |
| 353 | const nsIFrame* frame = this; |
| 354 | while (frame) { |
| 355 | nsView* view = frame->GetView(); |
| 356 | if (view && view->GetVisibility() == ViewVisibility::Hide) { |
| 357 | return false; |
| 358 | } |
| 359 | |
| 360 | if (frame->StyleUIReset()->mMozSubtreeHiddenOnlyVisually) { |
| 361 | return false; |
| 362 | } |
| 363 | |
| 364 | // This method is used to determine if a frame is focusable, because it's |
| 365 | // called by nsIFrame::IsFocusable. `content-visibility: auto` should not |
| 366 | // force this frame to be unfocusable, so we only take into account |
| 367 | // `content-visibility: hidden` here. |
| 368 | if (this != frame && |
| 369 | frame->HidesContent(IncludeContentVisibility::Hidden)) { |
| 370 | return false; |
| 371 | } |
| 372 | |
| 373 | if (nsIFrame* parent = frame->GetParent()) { |
| 374 | frame = parent; |
| 375 | } else { |
| 376 | parent = nsLayoutUtils::GetCrossDocParentFrameInProcess(frame); |
| 377 | if (!parent) break; |
| 378 | |
| 379 | if ((aFlags & nsIFrame::VISIBILITY_CROSS_CHROME_CONTENT_BOUNDARY) == 0 && |
| 380 | parent->PresContext()->IsChrome() && |
| 381 | !frame->PresContext()->IsChrome()) { |
| 382 | break; |
| 383 | } |
| 384 | |
| 385 | frame = parent; |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | return true; |
| 390 | } |
| 391 | |
| 392 | void nsIFrame::FindCloserFrameForSelection( |
| 393 | const nsPoint& aPoint, FrameWithDistance* aCurrentBestFrame) { |
| 394 | if (nsLayoutUtils::PointIsCloserToRect(aPoint, mRect, |
| 395 | aCurrentBestFrame->mXDistance, |
| 396 | aCurrentBestFrame->mYDistance)) { |
| 397 | aCurrentBestFrame->mFrame = this; |
| 398 | } |
| 399 | } |
| 400 | |
| 401 | void nsIFrame::ElementStateChanged(mozilla::dom::ElementState aStates) {} |
| 402 | |
| 403 | void WeakFrame::Clear(mozilla::PresShell* aPresShell) { |
| 404 | if (aPresShell) { |
| 405 | aPresShell->RemoveWeakFrame(this); |
| 406 | } |
| 407 | mFrame = nullptr; |
| 408 | } |
| 409 | |
| 410 | AutoWeakFrame::AutoWeakFrame(const WeakFrame& aOther) |
| 411 | : mPrev(nullptr), mFrame(nullptr) { |
| 412 | Init(aOther.GetFrame()); |
| 413 | } |
| 414 | |
| 415 | void AutoWeakFrame::Clear(mozilla::PresShell* aPresShell) { |
| 416 | if (aPresShell) { |
| 417 | aPresShell->RemoveAutoWeakFrame(this); |
| 418 | } |
| 419 | mFrame = nullptr; |
| 420 | mPrev = nullptr; |
| 421 | } |
| 422 | |
| 423 | AutoWeakFrame::~AutoWeakFrame() { |
| 424 | Clear(mFrame ? mFrame->PresContext()->GetPresShell() : nullptr); |
| 425 | } |
| 426 | |
| 427 | void AutoWeakFrame::Init(nsIFrame* aFrame) { |
| 428 | Clear(mFrame ? mFrame->PresContext()->GetPresShell() : nullptr); |
| 429 | mFrame = aFrame; |
| 430 | if (mFrame) { |
| 431 | mozilla::PresShell* presShell = mFrame->PresContext()->GetPresShell(); |
| 432 | NS_WARNING_ASSERTION(presShell, "Null PresShell in AutoWeakFrame!")do { if (!(presShell)) { NS_DebugBreak(NS_DEBUG_WARNING, "Null PresShell in AutoWeakFrame!" , "presShell", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 432); } } while (false); |
| 433 | if (presShell) { |
| 434 | presShell->AddAutoWeakFrame(this); |
| 435 | } else { |
| 436 | mFrame = nullptr; |
| 437 | } |
| 438 | } |
| 439 | } |
| 440 | |
| 441 | void WeakFrame::Init(nsIFrame* aFrame) { |
| 442 | Clear(mFrame ? mFrame->PresContext()->GetPresShell() : nullptr); |
| 443 | mFrame = aFrame; |
| 444 | if (mFrame) { |
| 445 | mozilla::PresShell* presShell = mFrame->PresContext()->GetPresShell(); |
| 446 | MOZ_ASSERT(presShell, "Null PresShell in WeakFrame!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(presShell)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(presShell))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("presShell" " (" "Null PresShell in WeakFrame!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 446); AnnotateMozCrashReason("MOZ_ASSERT" "(" "presShell" ") (" "Null PresShell in WeakFrame!" ")"); do { *((volatile int*)__null ) = 446; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 447 | if (presShell) { |
| 448 | presShell->AddWeakFrame(this); |
| 449 | } else { |
| 450 | mFrame = nullptr; |
| 451 | } |
| 452 | } |
| 453 | } |
| 454 | |
| 455 | nsIFrame* NS_NewEmptyFrame(PresShell* aPresShell, ComputedStyle* aStyle) { |
| 456 | return new (aPresShell) nsIFrame(aStyle, aPresShell->GetPresContext()); |
| 457 | } |
| 458 | |
| 459 | nsIFrame::~nsIFrame() { |
| 460 | MOZ_COUNT_DTOR(nsIFrame)do { static_assert(std::is_class_v<nsIFrame>, "Token '" "nsIFrame" "' is not a class type."); static_assert(!std::is_base_of <nsISupports, nsIFrame>::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogDtor((void*)this, "nsIFrame", sizeof (*this)); } while (0); |
| 461 | |
| 462 | MOZ_ASSERT(GetVisibility() != Visibility::ApproximatelyVisible,do { static_assert( mozilla::detail::AssertionConditionType< decltype(GetVisibility() != Visibility::ApproximatelyVisible) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(GetVisibility() != Visibility::ApproximatelyVisible) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("GetVisibility() != Visibility::ApproximatelyVisible" " (" "Visible nsFrame is being destroyed" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 463); AnnotateMozCrashReason("MOZ_ASSERT" "(" "GetVisibility() != Visibility::ApproximatelyVisible" ") (" "Visible nsFrame is being destroyed" ")"); do { *((volatile int*)__null) = 463; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 463 | "Visible nsFrame is being destroyed")do { static_assert( mozilla::detail::AssertionConditionType< decltype(GetVisibility() != Visibility::ApproximatelyVisible) >::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(GetVisibility() != Visibility::ApproximatelyVisible) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("GetVisibility() != Visibility::ApproximatelyVisible" " (" "Visible nsFrame is being destroyed" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 463); AnnotateMozCrashReason("MOZ_ASSERT" "(" "GetVisibility() != Visibility::ApproximatelyVisible" ") (" "Visible nsFrame is being destroyed" ")"); do { *((volatile int*)__null) = 463; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 464 | } |
| 465 | |
| 466 | NS_IMPL_FRAMEARENA_HELPERS(nsIFrame)void* nsIFrame ::operator new(size_t sz, mozilla::PresShell * aShell) { return aShell->AllocateFrame(nsQueryFrame::nsIFrame_id , sz); } |
| 467 | |
| 468 | // Dummy operator delete. Will never be called, but must be defined |
| 469 | // to satisfy some C++ ABIs. |
| 470 | void nsIFrame::operator delete(void*, size_t) { |
| 471 | MOZ_CRASH("nsIFrame::operator delete should never be called")do { do { } while (false); MOZ_ReportCrash("" "nsIFrame::operator delete should never be called" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 471); AnnotateMozCrashReason("MOZ_CRASH(" "nsIFrame::operator delete should never be called" ")"); do { *((volatile int*)__null) = 471; __attribute__((nomerge )) ::abort(); } while (false); } while (false); |
| 472 | } |
| 473 | |
| 474 | NS_QUERYFRAME_HEAD(nsIFrame)void* nsIFrame ::QueryFrame(FrameIID id) const { switch (id) { |
| 475 | NS_QUERYFRAME_ENTRY(nsIFrame)case nsIFrame ::kFrameIID: { static_assert( std::is_same_v< nsIFrame, nsIFrame ::Has_NS_DECL_QUERYFRAME_TARGET>, "nsIFrame" " must declare itself as a queryframe target"); return const_cast <nsIFrame*>(static_cast<const nsIFrame*>(this)); } |
| 476 | NS_QUERYFRAME_TAIL_INHERITANCE_ROOTdefault: break; } do { static_assert( mozilla::detail::AssertionConditionType <decltype(id != GetFrameId())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(id != GetFrameId()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("id != GetFrameId()" " (" "A frame failed to QueryFrame to its *own type*. " "It may be missing NS_DECL_QUERYFRAME, or a " "NS_QUERYFRAME_ENTRY() line with its own type name" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 476); AnnotateMozCrashReason("MOZ_ASSERT" "(" "id != GetFrameId()" ") (" "A frame failed to QueryFrame to its *own type*. " "It may be missing NS_DECL_QUERYFRAME, or a " "NS_QUERYFRAME_ENTRY() line with its own type name" ")"); do { *((volatile int*)__null) = 476; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); return nullptr; } |
| 477 | |
| 478 | ///////////////////////////////////////////////////////////////////////////// |
| 479 | // nsIFrame |
| 480 | |
| 481 | static bool IsFontSizeInflationContainer(nsIFrame* aFrame, |
| 482 | const nsStyleDisplay* aStyleDisplay) { |
| 483 | /* |
| 484 | * Font size inflation is built around the idea that we're inflating |
| 485 | * the fonts for a pan-and-zoom UI so that when the user scales up a |
| 486 | * block or other container to fill the width of the device, the fonts |
| 487 | * will be readable. To do this, we need to pick what counts as a |
| 488 | * container. |
| 489 | * |
| 490 | * From a code perspective, the only hard requirement is that frames |
| 491 | * that are line participants (nsIFrame::IsLineParticipant) are never |
| 492 | * containers, since line layout assumes that the inflation is consistent |
| 493 | * within a line. |
| 494 | * |
| 495 | * This is not an imposition, since we obviously want a bunch of text |
| 496 | * (possibly with inline elements) flowing within a block to count the |
| 497 | * block (or higher) as its container. |
| 498 | * |
| 499 | * We also want form controls, including the text in the anonymous |
| 500 | * content inside of them, to match each other and the text next to |
| 501 | * them, so they and their anonymous content should also not be a |
| 502 | * container. |
| 503 | * |
| 504 | * However, because we can't reliably compute sizes across XUL during |
| 505 | * reflow, any XUL frame with a XUL parent is always a container. |
| 506 | * |
| 507 | * There are contexts where it would be nice if some blocks didn't |
| 508 | * count as a container, so that, for example, an indented quotation |
| 509 | * didn't end up with a smaller font size. However, it's hard to |
| 510 | * distinguish these situations where we really do want the indented |
| 511 | * thing to count as a container, so we don't try, and blocks are |
| 512 | * always containers. |
| 513 | */ |
| 514 | |
| 515 | // The root frame should always be an inflation container. |
| 516 | if (!aFrame->GetParent()) { |
| 517 | return true; |
| 518 | } |
| 519 | |
| 520 | nsIContent* content = aFrame->GetContent(); |
| 521 | if (content && content->IsInNativeAnonymousSubtree()) { |
| 522 | // Native anonymous content shouldn't be a font inflation root, |
| 523 | // except for the canvas custom content container. |
| 524 | nsCanvasFrame* canvas = aFrame->PresShell()->GetCanvasFrame(); |
| 525 | return canvas && canvas->GetCustomContentContainer() == content; |
| 526 | } |
| 527 | |
| 528 | LayoutFrameType frameType = aFrame->Type(); |
| 529 | bool isInline = |
| 530 | aFrame->GetDisplay().IsInlineFlow() || RubyUtils::IsRubyBox(frameType) || |
| 531 | (aStyleDisplay->IsFloatingStyle() && |
| 532 | frameType == LayoutFrameType::Letter) || |
| 533 | // Given multiple frames for the same node, only the |
| 534 | // outer one should be considered a container. |
| 535 | // (Important, e.g., for nsSelectsAreaFrame.) |
| 536 | (aFrame->GetParent()->GetContent() == content) || |
| 537 | (content && |
| 538 | // Form controls shouldn't become inflation containers. |
| 539 | (content->IsAnyOfHTMLElements(nsGkAtoms::option, nsGkAtoms::optgroup, |
| 540 | nsGkAtoms::select, nsGkAtoms::input, |
| 541 | nsGkAtoms::button, nsGkAtoms::textarea))); |
| 542 | NS_ASSERTION(!aFrame->IsLineParticipant() || isInline ||do { if (!(!aFrame->IsLineParticipant() || isInline || aFrame ->IsBrFrame() || aFrame->IsMathMLFrame())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "line participants must not be containers" , "!aFrame->IsLineParticipant() || isInline || aFrame->IsBrFrame() || aFrame->IsMathMLFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 547); MOZ_PretendNoReturn(); } } while (0) |
| 543 | // br frames and mathml frames report being linedo { if (!(!aFrame->IsLineParticipant() || isInline || aFrame ->IsBrFrame() || aFrame->IsMathMLFrame())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "line participants must not be containers" , "!aFrame->IsLineParticipant() || isInline || aFrame->IsBrFrame() || aFrame->IsMathMLFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 547); MOZ_PretendNoReturn(); } } while (0) |
| 544 | // participants even when their position or display isdo { if (!(!aFrame->IsLineParticipant() || isInline || aFrame ->IsBrFrame() || aFrame->IsMathMLFrame())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "line participants must not be containers" , "!aFrame->IsLineParticipant() || isInline || aFrame->IsBrFrame() || aFrame->IsMathMLFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 547); MOZ_PretendNoReturn(); } } while (0) |
| 545 | // setdo { if (!(!aFrame->IsLineParticipant() || isInline || aFrame ->IsBrFrame() || aFrame->IsMathMLFrame())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "line participants must not be containers" , "!aFrame->IsLineParticipant() || isInline || aFrame->IsBrFrame() || aFrame->IsMathMLFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 547); MOZ_PretendNoReturn(); } } while (0) |
| 546 | aFrame->IsBrFrame() || aFrame->IsMathMLFrame(),do { if (!(!aFrame->IsLineParticipant() || isInline || aFrame ->IsBrFrame() || aFrame->IsMathMLFrame())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "line participants must not be containers" , "!aFrame->IsLineParticipant() || isInline || aFrame->IsBrFrame() || aFrame->IsMathMLFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 547); MOZ_PretendNoReturn(); } } while (0) |
| 547 | "line participants must not be containers")do { if (!(!aFrame->IsLineParticipant() || isInline || aFrame ->IsBrFrame() || aFrame->IsMathMLFrame())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "line participants must not be containers" , "!aFrame->IsLineParticipant() || isInline || aFrame->IsBrFrame() || aFrame->IsMathMLFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 547); MOZ_PretendNoReturn(); } } while (0); |
| 548 | return !isInline; |
| 549 | } |
| 550 | |
| 551 | static void MaybeScheduleReflowSVGNonDisplayText(nsIFrame* aFrame) { |
| 552 | if (!aFrame->IsInSVGTextSubtree()) { |
| 553 | return; |
| 554 | } |
| 555 | |
| 556 | // We need to ensure that any non-display SVGTextFrames get reflowed when a |
| 557 | // child text frame gets new style. Thus we need to schedule a reflow in |
| 558 | // |DidSetComputedStyle|. We also need to call it from |DestroyFrom|, |
| 559 | // because otherwise we won't get notified when style changes to |
| 560 | // "display:none". |
| 561 | SVGTextFrame* svgTextFrame = static_cast<SVGTextFrame*>( |
| 562 | nsLayoutUtils::GetClosestFrameOfType(aFrame, LayoutFrameType::SVGText)); |
| 563 | nsIFrame* anonBlock = svgTextFrame->PrincipalChildList().FirstChild(); |
| 564 | |
| 565 | // Note that we must check NS_FRAME_FIRST_REFLOW on our SVGTextFrame's |
| 566 | // anonymous block frame rather than our aFrame, since NS_FRAME_FIRST_REFLOW |
| 567 | // may be set on us if we're a new frame that has been inserted after the |
| 568 | // document's first reflow. (In which case this DidSetComputedStyle call may |
| 569 | // be happening under frame construction under a Reflow() call.) |
| 570 | if (!anonBlock || anonBlock->HasAnyStateBits(NS_FRAME_FIRST_REFLOW)) { |
| 571 | return; |
| 572 | } |
| 573 | |
| 574 | if (!svgTextFrame->HasAnyStateBits(NS_FRAME_IS_NONDISPLAY) || |
| 575 | svgTextFrame->HasAnyStateBits(NS_STATE_SVG_TEXT_IN_REFLOW)) { |
| 576 | return; |
| 577 | } |
| 578 | |
| 579 | svgTextFrame->ScheduleReflowSVGNonDisplayText( |
| 580 | IntrinsicDirty::FrameAncestorsAndDescendants); |
| 581 | } |
| 582 | |
| 583 | bool nsIFrame::IsPrimaryFrameOfRootOrBodyElement() const { |
| 584 | if (!IsPrimaryFrame()) { |
| 585 | return false; |
| 586 | } |
| 587 | nsIContent* content = GetContent(); |
| 588 | Document* document = content->OwnerDoc(); |
| 589 | return content == document->GetRootElement() || |
| 590 | content == document->GetBodyElement(); |
| 591 | } |
| 592 | |
| 593 | bool nsIFrame::IsRenderedLegend() const { |
| 594 | if (auto* parent = GetParent(); parent && parent->IsFieldSetFrame()) { |
| 595 | return static_cast<nsFieldSetFrame*>(parent)->GetLegend() == this; |
| 596 | } |
| 597 | return false; |
| 598 | } |
| 599 | |
| 600 | void nsIFrame::Init(nsIContent* aContent, nsContainerFrame* aParent, |
| 601 | nsIFrame* aPrevInFlow) { |
| 602 | MOZ_ASSERT(nsQueryFrame::FrameIID(mClass) == GetFrameId())do { static_assert( mozilla::detail::AssertionConditionType< decltype(nsQueryFrame::FrameIID(mClass) == GetFrameId())>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(nsQueryFrame::FrameIID(mClass) == GetFrameId()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("nsQueryFrame::FrameIID(mClass) == GetFrameId()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 602); AnnotateMozCrashReason("MOZ_ASSERT" "(" "nsQueryFrame::FrameIID(mClass) == GetFrameId()" ")"); do { *((volatile int*)__null) = 602; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 603 | MOZ_ASSERT(!mContent, "Double-initing a frame?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mContent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mContent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mContent" " (" "Double-initing a frame?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 603); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!mContent" ") (" "Double-initing a frame?" ")"); do { *((volatile int*)__null ) = 603; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 604 | |
| 605 | mContent = aContent; |
| 606 | mParent = aParent; |
| 607 | MOZ_DIAGNOSTIC_ASSERT(!mParent || PresShell() == mParent->PresShell())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mParent || PresShell() == mParent->PresShell())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!mParent || PresShell() == mParent->PresShell())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mParent || PresShell() == mParent->PresShell()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 607); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "!mParent || PresShell() == mParent->PresShell()" ")"); do { *((volatile int*)__null) = 607; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 608 | |
| 609 | if (aPrevInFlow) { |
| 610 | mWritingMode = aPrevInFlow->GetWritingMode(); |
| 611 | |
| 612 | // Copy some state bits from prev-in-flow (the bits that should apply |
| 613 | // throughout a continuation chain). The bits are sorted according to their |
| 614 | // order in nsFrameStateBits.h. |
| 615 | |
| 616 | // clang-format off |
| 617 | AddStateBits(aPrevInFlow->GetStateBits() & |
| 618 | (NS_FRAME_GENERATED_CONTENT | |
| 619 | NS_FRAME_OUT_OF_FLOW | |
| 620 | NS_FRAME_CAN_HAVE_ABSPOS_CHILDREN | |
| 621 | NS_FRAME_INDEPENDENT_SELECTION | |
| 622 | NS_FRAME_PART_OF_IBSPLIT | |
| 623 | NS_FRAME_MAY_BE_TRANSFORMED | |
| 624 | NS_FRAME_HAS_MULTI_COLUMN_ANCESTOR)); |
| 625 | // clang-format on |
| 626 | |
| 627 | // Copy other bits in nsIFrame from prev-in-flow. |
| 628 | mHasColumnSpanSiblings = aPrevInFlow->HasColumnSpanSiblings(); |
| 629 | } else { |
| 630 | PresContext()->ConstructedFrame(); |
| 631 | } |
| 632 | |
| 633 | if (GetParent()) { |
| 634 | if (MOZ_UNLIKELY(mContent == PresContext()->Document()->GetRootElement() &&(__builtin_expect(!!(mContent == PresContext()->Document() ->GetRootElement() && mContent == GetParent()-> GetContent()), 0)) |
| 635 | mContent == GetParent()->GetContent())(__builtin_expect(!!(mContent == PresContext()->Document() ->GetRootElement() && mContent == GetParent()-> GetContent()), 0))) { |
| 636 | // Our content is the root element and we have the same content as our |
| 637 | // parent. That is, we are the internal anonymous frame of the root |
| 638 | // element. Copy the used mWritingMode from our parent because |
| 639 | // mDocElementContainingBlock gets its mWritingMode from <body>. |
| 640 | mWritingMode = GetParent()->GetWritingMode(); |
| 641 | } |
| 642 | |
| 643 | // Copy some state bits from our parent (the bits that should apply |
| 644 | // recursively throughout a subtree). The bits are sorted according to their |
| 645 | // order in nsFrameStateBits.h. |
| 646 | |
| 647 | // clang-format off |
| 648 | AddStateBits(GetParent()->GetStateBits() & |
| 649 | (NS_FRAME_GENERATED_CONTENT | |
| 650 | NS_FRAME_INDEPENDENT_SELECTION | |
| 651 | NS_FRAME_IS_SVG_TEXT | |
| 652 | NS_FRAME_IN_POPUP | |
| 653 | NS_FRAME_IS_NONDISPLAY)); |
| 654 | // clang-format on |
| 655 | |
| 656 | if (HasAnyStateBits(NS_FRAME_IN_POPUP) && TrackingVisibility()) { |
| 657 | // Assume all frames in popups are visible. |
| 658 | IncApproximateVisibleCount(); |
| 659 | } |
| 660 | } |
| 661 | if (aPrevInFlow) { |
| 662 | mMayHaveOpacityAnimation = aPrevInFlow->MayHaveOpacityAnimation(); |
| 663 | mMayHaveTransformAnimation = aPrevInFlow->MayHaveTransformAnimation(); |
| 664 | } else if (mContent) { |
| 665 | // It's fine to fetch the EffectSet for the style frame here because in the |
| 666 | // following code we take care of the case where animations may target |
| 667 | // a different frame. |
| 668 | EffectSet* effectSet = EffectSet::GetForStyleFrame(this); |
| 669 | if (effectSet) { |
| 670 | mMayHaveOpacityAnimation = effectSet->MayHaveOpacityAnimation(); |
| 671 | |
| 672 | if (effectSet->MayHaveTransformAnimation()) { |
| 673 | // If we are the inner table frame for display:table content, then |
| 674 | // transform animations should go on our parent frame (the table wrapper |
| 675 | // frame). |
| 676 | // |
| 677 | // We do this when initializing the child frame (table inner frame), |
| 678 | // because when initializng the table wrapper frame, we don't yet have |
| 679 | // access to its children so we can't tell if we have transform |
| 680 | // animations or not. |
| 681 | if (SupportsCSSTransforms()) { |
| 682 | mMayHaveTransformAnimation = true; |
| 683 | AddStateBits(NS_FRAME_MAY_BE_TRANSFORMED); |
| 684 | } else if (aParent && nsLayoutUtils::GetStyleFrame(aParent) == this) { |
| 685 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParent->SupportsCSSTransforms())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParent->SupportsCSSTransforms ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aParent->SupportsCSSTransforms()" " (" "Style frames that don't support transforms should have parents" " that do" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 688); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParent->SupportsCSSTransforms()" ") (" "Style frames that don't support transforms should have parents" " that do" ")"); do { *((volatile int*)__null) = 688; __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false) |
| 686 | aParent->SupportsCSSTransforms(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParent->SupportsCSSTransforms())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParent->SupportsCSSTransforms ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aParent->SupportsCSSTransforms()" " (" "Style frames that don't support transforms should have parents" " that do" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 688); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParent->SupportsCSSTransforms()" ") (" "Style frames that don't support transforms should have parents" " that do" ")"); do { *((volatile int*)__null) = 688; __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false) |
| 687 | "Style frames that don't support transforms should have parents"do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParent->SupportsCSSTransforms())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParent->SupportsCSSTransforms ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aParent->SupportsCSSTransforms()" " (" "Style frames that don't support transforms should have parents" " that do" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 688); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParent->SupportsCSSTransforms()" ") (" "Style frames that don't support transforms should have parents" " that do" ")"); do { *((volatile int*)__null) = 688; __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false) |
| 688 | " that do")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aParent->SupportsCSSTransforms())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParent->SupportsCSSTransforms ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aParent->SupportsCSSTransforms()" " (" "Style frames that don't support transforms should have parents" " that do" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 688); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParent->SupportsCSSTransforms()" ") (" "Style frames that don't support transforms should have parents" " that do" ")"); do { *((volatile int*)__null) = 688; __attribute__ ((nomerge)) ::abort(); } while (false); } } while (false); |
| 689 | aParent->mMayHaveTransformAnimation = true; |
| 690 | aParent->AddStateBits(NS_FRAME_MAY_BE_TRANSFORMED); |
| 691 | } |
| 692 | } |
| 693 | } |
| 694 | } |
| 695 | |
| 696 | const nsStyleDisplay* disp = StyleDisplay(); |
| 697 | if (disp->HasTransform(this)) { |
| 698 | // If 'transform' dynamically changes, RestyleManager takes care of |
| 699 | // updating this bit. |
| 700 | AddStateBits(NS_FRAME_MAY_BE_TRANSFORMED); |
| 701 | } |
| 702 | |
| 703 | if (nsLayoutUtils::FontSizeInflationEnabled(PresContext()) || |
| 704 | !GetParent() |
| 705 | #ifdef DEBUG1 |
| 706 | // We have assertions that check inflation invariants even when |
| 707 | // font size inflation is not enabled. |
| 708 | || true |
| 709 | #endif |
| 710 | ) { |
| 711 | if (IsFontSizeInflationContainer(this, disp)) { |
| 712 | AddStateBits(NS_FRAME_FONT_INFLATION_CONTAINER); |
| 713 | if (!GetParent() || |
| 714 | // I'd use NS_FRAME_OUT_OF_FLOW, but it's not set yet. |
| 715 | disp->IsFloating(this) || disp->IsAbsolutelyPositioned(this) || |
| 716 | GetParent()->IsFlexContainerFrame() || |
| 717 | GetParent()->IsGridContainerFrame()) { |
| 718 | AddStateBits(NS_FRAME_FONT_INFLATION_FLOW_ROOT); |
| 719 | } |
| 720 | } |
| 721 | NS_ASSERTION(do { if (!(GetParent() || HasAnyStateBits(NS_FRAME_FONT_INFLATION_CONTAINER ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "root frame should always be a container" , "GetParent() || HasAnyStateBits(NS_FRAME_FONT_INFLATION_CONTAINER)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 723); MOZ_PretendNoReturn(); } } while (0) |
| 722 | GetParent() || HasAnyStateBits(NS_FRAME_FONT_INFLATION_CONTAINER),do { if (!(GetParent() || HasAnyStateBits(NS_FRAME_FONT_INFLATION_CONTAINER ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "root frame should always be a container" , "GetParent() || HasAnyStateBits(NS_FRAME_FONT_INFLATION_CONTAINER)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 723); MOZ_PretendNoReturn(); } } while (0) |
| 723 | "root frame should always be a container")do { if (!(GetParent() || HasAnyStateBits(NS_FRAME_FONT_INFLATION_CONTAINER ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "root frame should always be a container" , "GetParent() || HasAnyStateBits(NS_FRAME_FONT_INFLATION_CONTAINER)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 723); MOZ_PretendNoReturn(); } } while (0); |
| 724 | } |
| 725 | |
| 726 | if (TrackingVisibility() && PresShell()->AssumeAllFramesVisible()) { |
| 727 | IncApproximateVisibleCount(); |
| 728 | } |
| 729 | |
| 730 | DidSetComputedStyle(nullptr); |
| 731 | |
| 732 | // For a newly created frame, we need to update this frame's visibility state. |
| 733 | // Usually we update the state when the frame is restyled and has a |
| 734 | // VisibilityChange change hint but we don't generate any change hints for |
| 735 | // newly created frames. |
| 736 | // Note: We don't need to do this for placeholders since placeholders have |
| 737 | // different styles so that the styles don't have visibility:hidden even if |
| 738 | // the parent has visibility:hidden style. We also don't need to update the |
| 739 | // state when creating continuations because its visibility is the same as its |
| 740 | // prev-in-flow, and the animation code cares only primary frames. |
| 741 | if (!IsPlaceholderFrame() && !aPrevInFlow) { |
| 742 | UpdateVisibleDescendantsState(); |
| 743 | } |
| 744 | |
| 745 | if (!aPrevInFlow && HasAnyStateBits(NS_FRAME_IS_NONDISPLAY)) { |
| 746 | // We aren't going to get a reflow, so nothing else will call |
| 747 | // InvalidateRenderingObservers, we have to do it here. |
| 748 | SVGObserverUtils::InvalidateRenderingObservers(this); |
| 749 | } |
| 750 | } |
| 751 | |
| 752 | void nsIFrame::InitPrimaryFrame() { |
| 753 | MOZ_ASSERT(IsPrimaryFrame())do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsPrimaryFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsPrimaryFrame()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("IsPrimaryFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 753); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsPrimaryFrame()" ")"); do { *((volatile int*)__null) = 753; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 754 | const nsStyleDisplay* disp = StyleDisplay(); |
| 755 | |
| 756 | if (disp->mContainerType != StyleContainerType::Normal) { |
| 757 | PresContext()->RegisterContainerQueryFrame(this); |
| 758 | } |
| 759 | |
| 760 | if (StyleDisplay()->ContentVisibility(*this) == |
| 761 | StyleContentVisibility::Auto) { |
| 762 | PresShell()->RegisterContentVisibilityAutoFrame(this); |
| 763 | } else if (auto* element = Element::FromNodeOrNull(GetContent())) { |
| 764 | element->ClearContentRelevancy(); |
| 765 | } |
| 766 | |
| 767 | // TODO(mrobinson): Once bug 1765615 is fixed, this should be called on |
| 768 | // layout changes. In addition, when `content-visibility: auto` is implemented |
| 769 | // this should also be called when scrolling or focus causes content to be |
| 770 | // skipped or unskipped. |
| 771 | UpdateAnimationVisibility(); |
| 772 | |
| 773 | HandleLastRememberedSize(); |
| 774 | } |
| 775 | |
| 776 | void nsIFrame::Destroy(DestroyContext& aContext) { |
| 777 | NS_ASSERTION(!nsContentUtils::IsSafeToRunScript(),do { if (!(!nsContentUtils::IsSafeToRunScript())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "destroy called on frame while scripts not blocked" , "!nsContentUtils::IsSafeToRunScript()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 778); MOZ_PretendNoReturn(); } } while (0) |
| 778 | "destroy called on frame while scripts not blocked")do { if (!(!nsContentUtils::IsSafeToRunScript())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "destroy called on frame while scripts not blocked" , "!nsContentUtils::IsSafeToRunScript()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 778); MOZ_PretendNoReturn(); } } while (0); |
| 779 | NS_ASSERTION(!GetNextSibling() && !GetPrevSibling(),do { if (!(!GetNextSibling() && !GetPrevSibling())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Frames should be removed before destruction." , "!GetNextSibling() && !GetPrevSibling()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 780); MOZ_PretendNoReturn(); } } while (0) |
| 780 | "Frames should be removed before destruction.")do { if (!(!GetNextSibling() && !GetPrevSibling())) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Frames should be removed before destruction." , "!GetNextSibling() && !GetPrevSibling()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 780); MOZ_PretendNoReturn(); } } while (0); |
| 781 | MOZ_ASSERT(!HasAbsolutelyPositionedChildren())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasAbsolutelyPositionedChildren())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!HasAbsolutelyPositionedChildren ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!HasAbsolutelyPositionedChildren()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 781); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasAbsolutelyPositionedChildren()" ")"); do { *((volatile int*)__null) = 781; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 782 | MOZ_ASSERT(!HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT)" " (" "NS_FRAME_PART_OF_IBSPLIT set on non-nsContainerFrame?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 783); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT)" ") (" "NS_FRAME_PART_OF_IBSPLIT set on non-nsContainerFrame?" ")"); do { *((volatile int*)__null) = 783; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 783 | "NS_FRAME_PART_OF_IBSPLIT set on non-nsContainerFrame?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT)" " (" "NS_FRAME_PART_OF_IBSPLIT set on non-nsContainerFrame?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 783); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT)" ") (" "NS_FRAME_PART_OF_IBSPLIT set on non-nsContainerFrame?" ")"); do { *((volatile int*)__null) = 783; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 784 | |
| 785 | MaybeScheduleReflowSVGNonDisplayText(this); |
| 786 | |
| 787 | SVGObserverUtils::InvalidateDirectRenderingObservers(this); |
| 788 | |
| 789 | const auto* disp = StyleDisplay(); |
| 790 | if (disp->mPosition == StylePositionProperty::Sticky) { |
| 791 | if (auto* ssc = |
| 792 | StickyScrollContainer::GetStickyScrollContainerForFrame(this)) { |
| 793 | ssc->RemoveFrame(this); |
| 794 | } |
| 795 | } |
| 796 | |
| 797 | if (disp->mContainerType != StyleContainerType::Normal) { |
| 798 | PresContext()->UnregisterContainerQueryFrame(this); |
| 799 | } |
| 800 | |
| 801 | nsPresContext* presContext = PresContext(); |
| 802 | mozilla::PresShell* presShell = presContext->GetPresShell(); |
| 803 | if (HasAnyStateBits(NS_FRAME_OUT_OF_FLOW)) { |
| 804 | if (nsPlaceholderFrame* placeholder = GetPlaceholderFrame()) { |
| 805 | placeholder->SetOutOfFlowFrame(nullptr); |
| 806 | } |
| 807 | } |
| 808 | |
| 809 | if (IsPrimaryFrame()) { |
| 810 | // This needs to happen before we clear our Properties() table. |
| 811 | ActiveLayerTracker::TransferActivityToContent(this, mContent); |
| 812 | } |
| 813 | |
| 814 | ScrollAnchorContainer* anchor = nullptr; |
| 815 | if (IsScrollAnchor(&anchor)) { |
| 816 | anchor->InvalidateAnchor(); |
| 817 | } |
| 818 | |
| 819 | if (HasCSSAnimations() || HasCSSTransitions() || |
| 820 | // It's fine to look up the style frame here since if we're destroying the |
| 821 | // frames for display:table content we should be destroying both wrapper |
| 822 | // and inner frame. |
| 823 | EffectSet::GetForStyleFrame(this)) { |
| 824 | // If no new frame for this element is created by the end of the |
| 825 | // restyling process, stop animations and transitions for this frame |
| 826 | RestyleManager::AnimationsWithDestroyedFrame* adf = |
| 827 | presContext->RestyleManager()->GetAnimationsWithDestroyedFrame(); |
| 828 | // AnimationsWithDestroyedFrame only lives during the restyling process. |
| 829 | if (adf) { |
| 830 | adf->Put(mContent, mComputedStyle); |
| 831 | } |
| 832 | } |
| 833 | |
| 834 | // Disable visibility tracking. Note that we have to do this before we clear |
| 835 | // frame properties and lose track of whether we were previously visible. |
| 836 | // XXX(seth): It'd be ideal to assert that we're already marked nonvisible |
| 837 | // here, but it's unfortunately tricky to guarantee in the face of things like |
| 838 | // frame reconstruction induced by style changes. |
| 839 | DisableVisibilityTracking(); |
| 840 | |
| 841 | // Ensure that we're not in the approximately visible list anymore. |
| 842 | PresContext()->GetPresShell()->RemoveFrameFromApproximatelyVisibleList(this); |
| 843 | |
| 844 | presShell->NotifyDestroyingFrame(this); |
| 845 | |
| 846 | if (HasAnyStateBits(NS_FRAME_EXTERNAL_REFERENCE)) { |
| 847 | presShell->ClearFrameRefs(this); |
| 848 | } |
| 849 | |
| 850 | nsView* view = GetView(); |
| 851 | if (view) { |
| 852 | view->SetFrame(nullptr); |
| 853 | view->Destroy(); |
| 854 | } |
| 855 | |
| 856 | // Make sure that our deleted frame can't be returned from GetPrimaryFrame() |
| 857 | if (IsPrimaryFrame()) { |
| 858 | mContent->SetPrimaryFrame(nullptr); |
| 859 | |
| 860 | // Pass the root of a generated content subtree (e.g. ::after/::before) to |
| 861 | // aPostDestroyData to unbind it after frame destruction is done. |
| 862 | if (HasAnyStateBits(NS_FRAME_GENERATED_CONTENT) && |
| 863 | mContent->IsRootOfNativeAnonymousSubtree()) { |
| 864 | aContext.AddAnonymousContent(mContent.forget()); |
| 865 | } |
| 866 | } |
| 867 | |
| 868 | // Remove all properties attached to the frame, to ensure any property |
| 869 | // destructors that need the frame pointer are handled properly. |
| 870 | RemoveAllProperties(); |
| 871 | |
| 872 | // Must retrieve the object ID before calling destructors, so the |
| 873 | // vtable is still valid. |
| 874 | // |
| 875 | // Note to future tweakers: having the method that returns the |
| 876 | // object size call the destructor will not avoid an indirect call; |
| 877 | // the compiler cannot devirtualize the call to the destructor even |
| 878 | // if it's from a method defined in the same class. |
| 879 | |
| 880 | nsQueryFrame::FrameIID id = GetFrameId(); |
| 881 | this->~nsIFrame(); |
| 882 | |
| 883 | #ifdef DEBUG1 |
| 884 | { |
| 885 | nsIFrame* rootFrame = presShell->GetRootFrame(); |
| 886 | MOZ_ASSERT(rootFrame)do { static_assert( mozilla::detail::AssertionConditionType< decltype(rootFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(rootFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("rootFrame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 886); AnnotateMozCrashReason("MOZ_ASSERT" "(" "rootFrame" ")" ); do { *((volatile int*)__null) = 886; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 887 | if (this != rootFrame) { |
| 888 | auto* builder = nsLayoutUtils::GetRetainedDisplayListBuilder(rootFrame); |
| 889 | auto* data = builder ? builder->Data() : nullptr; |
| 890 | |
| 891 | const bool inData = |
| 892 | data && (data->IsModified(this) || data->HasProps(this)); |
| 893 | |
| 894 | if (inData) { |
| 895 | DL_LOG(LogLevel::Warning, "Frame %p found in retained data", this)do { const ::mozilla::LogModule* moz_real_module = GetLoggerByProcess (); if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Warning)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Warning, "Frame %p found in retained data", this) ; } } while (0); |
| 896 | } |
| 897 | |
| 898 | MOZ_ASSERT(!inData, "Deleted frame in retained data!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!inData)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!inData))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!inData" " (" "Deleted frame in retained data!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 898); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!inData" ") (" "Deleted frame in retained data!" ")"); do { *((volatile int *)__null) = 898; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 899 | } |
| 900 | } |
| 901 | #endif |
| 902 | |
| 903 | // Now that we're totally cleaned out, we need to add ourselves to |
| 904 | // the presshell's recycler. |
| 905 | presShell->FreeFrame(id, this); |
| 906 | } |
| 907 | |
| 908 | std::pair<int32_t, int32_t> nsIFrame::GetOffsets() const { |
| 909 | return std::make_pair(0, 0); |
| 910 | } |
| 911 | |
| 912 | static void CompareLayers( |
| 913 | const nsStyleImageLayers* aFirstLayers, |
| 914 | const nsStyleImageLayers* aSecondLayers, |
| 915 | const std::function<void(imgRequestProxy* aReq)>& aCallback) { |
| 916 | NS_FOR_VISIBLE_IMAGE_LAYERS_BACK_TO_FRONT(i, (*aFirstLayers))for (uint32_t i = ((*aFirstLayers)).mImageCount; (i)-- != 0;) { |
| 917 | const auto& image = aFirstLayers->mLayers[i].mImage; |
| 918 | if (!image.IsImageRequestType() || !image.IsResolved()) { |
| 919 | continue; |
| 920 | } |
| 921 | |
| 922 | // aCallback is called when the style image in aFirstLayers is thought to |
| 923 | // be different with the corresponded one in aSecondLayers |
| 924 | if (!aSecondLayers || i >= aSecondLayers->mImageCount || |
| 925 | (!aSecondLayers->mLayers[i].mImage.IsResolved() || |
| 926 | image.GetImageRequest() != |
| 927 | aSecondLayers->mLayers[i].mImage.GetImageRequest())) { |
| 928 | if (imgRequestProxy* req = image.GetImageRequest()) { |
| 929 | aCallback(req); |
| 930 | } |
| 931 | } |
| 932 | } |
| 933 | } |
| 934 | |
| 935 | static void AddAndRemoveImageAssociations( |
| 936 | ImageLoader& aImageLoader, nsIFrame* aFrame, |
| 937 | const nsStyleImageLayers* aOldLayers, |
| 938 | const nsStyleImageLayers* aNewLayers) { |
| 939 | // If the old context had a background-image image, or mask-image image, |
| 940 | // and new context does not have the same image, clear the image load |
| 941 | // notifier (which keeps the image loading, if it still is) for the frame. |
| 942 | // We want to do this conservatively because some frames paint their |
| 943 | // backgrounds from some other frame's style data, and we don't want |
| 944 | // to clear those notifiers unless we have to. (They'll be reset |
| 945 | // when we paint, although we could miss a notification in that |
| 946 | // interval.) |
| 947 | if (aOldLayers && aFrame->HasImageRequest()) { |
| 948 | CompareLayers(aOldLayers, aNewLayers, [&](imgRequestProxy* aReq) { |
| 949 | aImageLoader.DisassociateRequestFromFrame(aReq, aFrame); |
| 950 | }); |
| 951 | } |
| 952 | |
| 953 | CompareLayers(aNewLayers, aOldLayers, [&](imgRequestProxy* aReq) { |
| 954 | aImageLoader.AssociateRequestToFrame(aReq, aFrame); |
| 955 | }); |
| 956 | } |
| 957 | |
| 958 | void nsIFrame::AddDisplayItem(nsDisplayItem* aItem) { |
| 959 | MOZ_DIAGNOSTIC_ASSERT(!mDisplayItems.Contains(aItem))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mDisplayItems.Contains(aItem))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!mDisplayItems.Contains(aItem )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!mDisplayItems.Contains(aItem)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 959); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "!mDisplayItems.Contains(aItem)" ")"); do { *((volatile int*)__null) = 959; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 960 | mDisplayItems.AppendElement(aItem); |
| 961 | #ifdef ACCESSIBILITY1 |
| 962 | if (nsAccessibilityService* accService = GetAccService()) { |
| 963 | accService->NotifyOfPossibleBoundsChange(PresShell(), mContent); |
| 964 | } |
| 965 | #endif |
| 966 | } |
| 967 | |
| 968 | bool nsIFrame::RemoveDisplayItem(nsDisplayItem* aItem) { |
| 969 | return mDisplayItems.RemoveElement(aItem); |
| 970 | } |
| 971 | |
| 972 | bool nsIFrame::HasDisplayItems() { return !mDisplayItems.IsEmpty(); } |
| 973 | |
| 974 | bool nsIFrame::HasDisplayItem(nsDisplayItem* aItem) { |
| 975 | return mDisplayItems.Contains(aItem); |
| 976 | } |
| 977 | |
| 978 | bool nsIFrame::HasDisplayItem(uint32_t aKey) { |
| 979 | for (nsDisplayItem* i : mDisplayItems) { |
| 980 | if (i->GetPerFrameKey() == aKey) { |
| 981 | return true; |
| 982 | } |
| 983 | } |
| 984 | return false; |
| 985 | } |
| 986 | |
| 987 | template <typename Condition> |
| 988 | static void DiscardDisplayItems(nsIFrame* aFrame, Condition aCondition) { |
| 989 | for (nsDisplayItem* i : aFrame->DisplayItems()) { |
| 990 | // Only discard items that are invalidated by this frame, as we're only |
| 991 | // guaranteed to rebuild those items. Table background items are created by |
| 992 | // the relevant table part, but have the cell frame as the primary frame, |
| 993 | // and we don't want to remove them if this is the cell. |
| 994 | if (aCondition(i) && i->FrameForInvalidation() == aFrame) { |
| 995 | i->SetCantBeReused(); |
| 996 | } |
| 997 | } |
| 998 | } |
| 999 | |
| 1000 | static void DiscardOldItems(nsIFrame* aFrame) { |
| 1001 | DiscardDisplayItems(aFrame, |
| 1002 | [](nsDisplayItem* aItem) { return aItem->IsOldItem(); }); |
| 1003 | } |
| 1004 | |
| 1005 | void nsIFrame::RemoveDisplayItemDataForDeletion() { |
| 1006 | // Destroying a WebRenderUserDataTable can cause destruction of other objects |
| 1007 | // which can remove frame properties in their destructor. If we delete a frame |
| 1008 | // property it runs the destructor of the stored object in the middle of |
| 1009 | // updating the frame property table, so if the destruction of that object |
| 1010 | // causes another update to the frame property table it would leave the frame |
| 1011 | // property table in an inconsistent state. So we remove it from the table and |
| 1012 | // then destroy it. (bug 1530657) |
| 1013 | WebRenderUserDataTable* userDataTable = |
| 1014 | TakeProperty(WebRenderUserDataProperty::Key()); |
| 1015 | if (userDataTable) { |
| 1016 | for (const auto& data : userDataTable->Values()) { |
| 1017 | data->RemoveFromTable(); |
| 1018 | } |
| 1019 | delete userDataTable; |
| 1020 | } |
| 1021 | |
| 1022 | if (!nsLayoutUtils::AreRetainedDisplayListsEnabled()) { |
| 1023 | // Retained display lists are disabled, no need to update |
| 1024 | // RetainedDisplayListData. |
| 1025 | return; |
| 1026 | } |
| 1027 | |
| 1028 | auto* builder = nsLayoutUtils::GetRetainedDisplayListBuilder(this); |
| 1029 | if (!builder) { |
| 1030 | MOZ_ASSERT(DisplayItems().IsEmpty())do { static_assert( mozilla::detail::AssertionConditionType< decltype(DisplayItems().IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(DisplayItems().IsEmpty()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("DisplayItems().IsEmpty()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1030); AnnotateMozCrashReason("MOZ_ASSERT" "(" "DisplayItems().IsEmpty()" ")"); do { *((volatile int*)__null) = 1030; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1031 | MOZ_ASSERT(!IsFrameModified())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsFrameModified())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsFrameModified()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsFrameModified()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1031); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsFrameModified()" ")"); do { *((volatile int*)__null) = 1031; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1032 | return; |
| 1033 | } |
| 1034 | |
| 1035 | for (nsDisplayItem* i : DisplayItems()) { |
| 1036 | if (i->GetDependentFrame() == this && !i->HasDeletedFrame()) { |
| 1037 | i->Frame()->MarkNeedsDisplayItemRebuild(); |
| 1038 | } |
| 1039 | i->RemoveFrame(this); |
| 1040 | } |
| 1041 | |
| 1042 | DisplayItems().Clear(); |
| 1043 | |
| 1044 | nsAutoString name; |
| 1045 | #ifdef DEBUG_FRAME_DUMP1 |
| 1046 | if (DL_LOG_TEST(LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(GetLoggerByProcess (), LogLevel::Debug)), 0))) { |
| 1047 | GetFrameName(name); |
| 1048 | } |
| 1049 | #endif |
| 1050 | DL_LOGV("Removing display item data for frame %p (%s)", this,do { const ::mozilla::LogModule* moz_real_module = GetLoggerByProcess (); if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Removing display item data for frame %p (%s)" , this, NS_ConvertUTF16toUTF8(name).get()); } } while (0) |
| 1051 | NS_ConvertUTF16toUTF8(name).get())do { const ::mozilla::LogModule* moz_real_module = GetLoggerByProcess (); if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Removing display item data for frame %p (%s)" , this, NS_ConvertUTF16toUTF8(name).get()); } } while (0); |
| 1052 | |
| 1053 | auto* data = builder->Data(); |
| 1054 | if (MayHaveWillChangeBudget()) { |
| 1055 | // Keep the frame in list, so it can be removed from the will-change budget. |
| 1056 | data->Flags(this) = RetainedDisplayListData::FrameFlag::HadWillChange; |
| 1057 | } else { |
| 1058 | data->Remove(this); |
| 1059 | } |
| 1060 | } |
| 1061 | |
| 1062 | void nsIFrame::MarkNeedsDisplayItemRebuild() { |
| 1063 | if (!nsLayoutUtils::AreRetainedDisplayListsEnabled() || IsFrameModified() || |
| 1064 | HasAnyStateBits(NS_FRAME_IN_POPUP)) { |
| 1065 | // Skip frames that are already marked modified. |
| 1066 | return; |
| 1067 | } |
| 1068 | |
| 1069 | if (Type() == LayoutFrameType::Placeholder) { |
| 1070 | nsIFrame* oof = static_cast<nsPlaceholderFrame*>(this)->GetOutOfFlowFrame(); |
| 1071 | if (oof) { |
| 1072 | oof->MarkNeedsDisplayItemRebuild(); |
| 1073 | } |
| 1074 | // Do not mark placeholder frames modified. |
| 1075 | return; |
| 1076 | } |
| 1077 | |
| 1078 | #ifdef ACCESSIBILITY1 |
| 1079 | if (nsAccessibilityService* accService = GetAccService()) { |
| 1080 | accService->NotifyOfPossibleBoundsChange(PresShell(), mContent); |
| 1081 | } |
| 1082 | #endif |
| 1083 | |
| 1084 | nsIFrame* rootFrame = PresShell()->GetRootFrame(); |
| 1085 | |
| 1086 | if (rootFrame->IsFrameModified()) { |
| 1087 | // The whole frame tree is modified. |
| 1088 | return; |
| 1089 | } |
| 1090 | |
| 1091 | auto* builder = nsLayoutUtils::GetRetainedDisplayListBuilder(this); |
| 1092 | if (!builder) { |
| 1093 | MOZ_ASSERT(DisplayItems().IsEmpty())do { static_assert( mozilla::detail::AssertionConditionType< decltype(DisplayItems().IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(DisplayItems().IsEmpty()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("DisplayItems().IsEmpty()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1093); AnnotateMozCrashReason("MOZ_ASSERT" "(" "DisplayItems().IsEmpty()" ")"); do { *((volatile int*)__null) = 1093; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1094 | return; |
| 1095 | } |
| 1096 | |
| 1097 | RetainedDisplayListData* data = builder->Data(); |
| 1098 | MOZ_ASSERT(data)do { static_assert( mozilla::detail::AssertionConditionType< decltype(data)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(data))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("data", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1098); AnnotateMozCrashReason("MOZ_ASSERT" "(" "data" ")"); do { *((volatile int*)__null) = 1098; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1099 | |
| 1100 | if (data->AtModifiedFrameLimit()) { |
| 1101 | // This marks the whole frame tree modified. |
| 1102 | // See |RetainedDisplayListBuilder::ShouldBuildPartial()|. |
| 1103 | data->AddModifiedFrame(rootFrame); |
| 1104 | return; |
| 1105 | } |
| 1106 | |
| 1107 | nsAutoString name; |
| 1108 | #ifdef DEBUG_FRAME_DUMP1 |
| 1109 | if (DL_LOG_TEST(LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(GetLoggerByProcess (), LogLevel::Debug)), 0))) { |
| 1110 | GetFrameName(name); |
| 1111 | } |
| 1112 | #endif |
| 1113 | |
| 1114 | DL_LOGV("RDL - Rebuilding display items for frame %p (%s)", this,do { const ::mozilla::LogModule* moz_real_module = GetLoggerByProcess (); if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "RDL - Rebuilding display items for frame %p (%s)" , this, NS_ConvertUTF16toUTF8(name).get()); } } while (0) |
| 1115 | NS_ConvertUTF16toUTF8(name).get())do { const ::mozilla::LogModule* moz_real_module = GetLoggerByProcess (); if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "RDL - Rebuilding display items for frame %p (%s)" , this, NS_ConvertUTF16toUTF8(name).get()); } } while (0); |
| 1116 | |
| 1117 | data->AddModifiedFrame(this); |
| 1118 | |
| 1119 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(PresContext()->LayoutPhaseCount(nsLayoutPhase::DisplayListBuilding ) == 0)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(PresContext()->LayoutPhaseCount(nsLayoutPhase::DisplayListBuilding ) == 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("PresContext()->LayoutPhaseCount(nsLayoutPhase::DisplayListBuilding) == 0" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1120); AnnotateMozCrashReason("MOZ_ASSERT" "(" "PresContext()->LayoutPhaseCount(nsLayoutPhase::DisplayListBuilding) == 0" ")"); do { *((volatile int*)__null) = 1120; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1120 | PresContext()->LayoutPhaseCount(nsLayoutPhase::DisplayListBuilding) == 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(PresContext()->LayoutPhaseCount(nsLayoutPhase::DisplayListBuilding ) == 0)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(PresContext()->LayoutPhaseCount(nsLayoutPhase::DisplayListBuilding ) == 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("PresContext()->LayoutPhaseCount(nsLayoutPhase::DisplayListBuilding) == 0" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1120); AnnotateMozCrashReason("MOZ_ASSERT" "(" "PresContext()->LayoutPhaseCount(nsLayoutPhase::DisplayListBuilding) == 0" ")"); do { *((volatile int*)__null) = 1120; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1121 | |
| 1122 | // Hopefully this is cheap, but we could use a frame state bit to note |
| 1123 | // the presence of dependencies to speed it up. |
| 1124 | for (nsDisplayItem* i : DisplayItems()) { |
| 1125 | if (i->HasDeletedFrame() || i->Frame() == this) { |
| 1126 | // Ignore the items with deleted frames, and the items with |this| as |
| 1127 | // the primary frame. |
| 1128 | continue; |
| 1129 | } |
| 1130 | |
| 1131 | if (i->GetDependentFrame() == this) { |
| 1132 | // For items with |this| as a dependent frame, mark the primary frame |
| 1133 | // for rebuild. |
| 1134 | i->Frame()->MarkNeedsDisplayItemRebuild(); |
| 1135 | } |
| 1136 | } |
| 1137 | } |
| 1138 | |
| 1139 | // Subclass hook for style post processing |
| 1140 | /* virtual */ |
| 1141 | void nsIFrame::DidSetComputedStyle(ComputedStyle* aOldComputedStyle) { |
| 1142 | #ifdef ACCESSIBILITY1 |
| 1143 | // Don't notify for reconstructed frames here, since the frame is still being |
| 1144 | // constructed at this point and so LocalAccessible::GetFrame() will return |
| 1145 | // null. Style changes for reconstructed frames are handled in |
| 1146 | // DocAccessible::PruneOrInsertSubtree. |
| 1147 | if (aOldComputedStyle) { |
| 1148 | if (nsAccessibilityService* accService = GetAccService()) { |
| 1149 | accService->NotifyOfComputedStyleChange(PresShell(), mContent); |
| 1150 | } |
| 1151 | } |
| 1152 | #endif |
| 1153 | |
| 1154 | MaybeScheduleReflowSVGNonDisplayText(this); |
| 1155 | |
| 1156 | Document* doc = PresContext()->Document(); |
| 1157 | ImageLoader* loader = doc->StyleImageLoader(); |
| 1158 | // Continuing text frame doesn't initialize its continuation pointer before |
| 1159 | // reaching here for the first time, so we have to exclude text frames. This |
| 1160 | // doesn't affect correctness because text can't match selectors. |
| 1161 | // |
| 1162 | // FIXME(emilio): We should consider fixing that. |
| 1163 | // |
| 1164 | // TODO(emilio): Can we avoid doing some / all of the image stuff when |
| 1165 | // isNonTextFirstContinuation is false? We should consider doing this just for |
| 1166 | // primary frames and pseudos, but the first-line reparenting code makes it |
| 1167 | // all bad, should get around to bug 1465474 eventually :( |
| 1168 | const bool isNonText = !IsTextFrame(); |
| 1169 | if (isNonText) { |
| 1170 | mComputedStyle->StartImageLoads(*doc, aOldComputedStyle); |
| 1171 | } |
| 1172 | |
| 1173 | const nsStyleImageLayers* oldLayers = |
| 1174 | aOldComputedStyle ? &aOldComputedStyle->StyleBackground()->mImage |
| 1175 | : nullptr; |
| 1176 | const nsStyleImageLayers* newLayers = &StyleBackground()->mImage; |
| 1177 | AddAndRemoveImageAssociations(*loader, this, oldLayers, newLayers); |
| 1178 | |
| 1179 | oldLayers = |
| 1180 | aOldComputedStyle ? &aOldComputedStyle->StyleSVGReset()->mMask : nullptr; |
| 1181 | newLayers = &StyleSVGReset()->mMask; |
| 1182 | AddAndRemoveImageAssociations(*loader, this, oldLayers, newLayers); |
| 1183 | |
| 1184 | const nsStyleDisplay* disp = StyleDisplay(); |
| 1185 | bool handleStickyChange = false; |
| 1186 | if (aOldComputedStyle) { |
| 1187 | // Detect style changes that should trigger a scroll anchor adjustment |
| 1188 | // suppression. |
| 1189 | // https://drafts.csswg.org/css-scroll-anchoring/#suppression-triggers |
| 1190 | bool needAnchorSuppression = false; |
| 1191 | |
| 1192 | const nsStyleMargin* oldMargin = aOldComputedStyle->StyleMargin(); |
| 1193 | if (oldMargin->mMargin != StyleMargin()->mMargin) { |
| 1194 | needAnchorSuppression = true; |
| 1195 | } |
| 1196 | |
| 1197 | const nsStylePadding* oldPadding = aOldComputedStyle->StylePadding(); |
| 1198 | if (oldPadding->mPadding != StylePadding()->mPadding) { |
| 1199 | SetHasPaddingChange(true); |
| 1200 | needAnchorSuppression = true; |
| 1201 | } |
| 1202 | |
| 1203 | const nsStyleDisplay* oldDisp = aOldComputedStyle->StyleDisplay(); |
| 1204 | if (oldDisp->mOverflowAnchor != disp->mOverflowAnchor) { |
| 1205 | if (auto* container = ScrollAnchorContainer::FindFor(this)) { |
| 1206 | container->InvalidateAnchor(); |
| 1207 | } |
| 1208 | if (nsIScrollableFrame* scrollableFrame = do_QueryFrame(this)) { |
| 1209 | scrollableFrame->Anchor()->InvalidateAnchor(); |
| 1210 | } |
| 1211 | } |
| 1212 | |
| 1213 | if (mInScrollAnchorChain) { |
| 1214 | const nsStylePosition* pos = StylePosition(); |
| 1215 | const nsStylePosition* oldPos = aOldComputedStyle->StylePosition(); |
| 1216 | if (!needAnchorSuppression && |
| 1217 | (oldPos->mOffset != pos->mOffset || oldPos->mWidth != pos->mWidth || |
| 1218 | oldPos->mMinWidth != pos->mMinWidth || |
| 1219 | oldPos->mMaxWidth != pos->mMaxWidth || |
| 1220 | oldPos->mHeight != pos->mHeight || |
| 1221 | oldPos->mMinHeight != pos->mMinHeight || |
| 1222 | oldPos->mMaxHeight != pos->mMaxHeight || |
| 1223 | oldDisp->mPosition != disp->mPosition || |
| 1224 | oldDisp->mTransform != disp->mTransform)) { |
| 1225 | needAnchorSuppression = true; |
| 1226 | } |
| 1227 | |
| 1228 | if (needAnchorSuppression && |
| 1229 | StaticPrefs::layout_css_scroll_anchoring_suppressions_enabled()) { |
| 1230 | ScrollAnchorContainer::FindFor(this)->SuppressAdjustments(); |
| 1231 | } |
| 1232 | } |
| 1233 | |
| 1234 | if (disp->mPosition != oldDisp->mPosition) { |
| 1235 | if (!disp->IsRelativelyOrStickyPositionedStyle() && |
| 1236 | oldDisp->IsRelativelyOrStickyPositionedStyle()) { |
| 1237 | RemoveProperty(NormalPositionProperty()); |
| 1238 | } |
| 1239 | |
| 1240 | handleStickyChange = disp->mPosition == StylePositionProperty::Sticky || |
| 1241 | oldDisp->mPosition == StylePositionProperty::Sticky; |
| 1242 | } |
| 1243 | if (disp->mScrollSnapAlign != oldDisp->mScrollSnapAlign) { |
| 1244 | ScrollSnapUtils::PostPendingResnapFor(this); |
| 1245 | } |
| 1246 | if (aOldComputedStyle->IsRootElementStyle() && |
| 1247 | disp->mScrollSnapType != oldDisp->mScrollSnapType) { |
| 1248 | if (nsIScrollableFrame* scrollableFrame = |
| 1249 | PresShell()->GetRootScrollFrameAsScrollable()) { |
| 1250 | scrollableFrame->PostPendingResnap(); |
| 1251 | } |
| 1252 | } |
| 1253 | if (StyleUIReset()->mMozSubtreeHiddenOnlyVisually && |
| 1254 | !aOldComputedStyle->StyleUIReset()->mMozSubtreeHiddenOnlyVisually) { |
| 1255 | PresShell::ClearMouseCapture(this); |
| 1256 | } |
| 1257 | } else { // !aOldComputedStyle |
| 1258 | handleStickyChange = disp->mPosition == StylePositionProperty::Sticky; |
| 1259 | } |
| 1260 | |
| 1261 | if (handleStickyChange && !HasAnyStateBits(NS_FRAME_IS_NONDISPLAY) && |
| 1262 | !GetPrevInFlow()) { |
| 1263 | // Note that we only add first continuations, but we really only |
| 1264 | // want to add first continuation-or-ib-split-siblings. But since we don't |
| 1265 | // yet know if we're a later part of a block-in-inline split, we'll just |
| 1266 | // add later members of a block-in-inline split here, and then |
| 1267 | // StickyScrollContainer will remove them later. |
| 1268 | if (auto* ssc = |
| 1269 | StickyScrollContainer::GetStickyScrollContainerForFrame(this)) { |
| 1270 | if (disp->mPosition == StylePositionProperty::Sticky) { |
| 1271 | ssc->AddFrame(this); |
| 1272 | } else { |
| 1273 | ssc->RemoveFrame(this); |
| 1274 | } |
| 1275 | } |
| 1276 | } |
| 1277 | |
| 1278 | imgIRequest* oldBorderImage = |
| 1279 | aOldComputedStyle |
| 1280 | ? aOldComputedStyle->StyleBorder()->GetBorderImageRequest() |
| 1281 | : nullptr; |
| 1282 | imgIRequest* newBorderImage = StyleBorder()->GetBorderImageRequest(); |
| 1283 | // FIXME (Bug 759996): The following is no longer true. |
| 1284 | // For border-images, we can't be as conservative (we need to set the |
| 1285 | // new loaders if there has been any change) since the CalcDifference |
| 1286 | // call depended on the result of GetComputedBorder() and that result |
| 1287 | // depends on whether the image has loaded, start the image load now |
| 1288 | // so that we'll get notified when it completes loading and can do a |
| 1289 | // restyle. Otherwise, the image might finish loading from the |
| 1290 | // network before we start listening to its notifications, and then |
| 1291 | // we'll never know that it's finished loading. Likewise, we want to |
| 1292 | // do this for freshly-created frames to prevent a similar race if the |
| 1293 | // image loads between reflow (which can depend on whether the image |
| 1294 | // is loaded) and paint. We also don't really care about any callers who try |
| 1295 | // to paint borders with a different style, because they won't have the |
| 1296 | // correct size for the border either. |
| 1297 | if (oldBorderImage != newBorderImage) { |
| 1298 | // stop and restart the image loading/notification |
| 1299 | if (oldBorderImage && HasImageRequest()) { |
| 1300 | loader->DisassociateRequestFromFrame(oldBorderImage, this); |
| 1301 | } |
| 1302 | if (newBorderImage) { |
| 1303 | loader->AssociateRequestToFrame(newBorderImage, this); |
| 1304 | } |
| 1305 | } |
| 1306 | |
| 1307 | auto GetShapeImageRequest = [](const ComputedStyle* aStyle) -> imgIRequest* { |
| 1308 | if (!aStyle) { |
| 1309 | return nullptr; |
| 1310 | } |
| 1311 | auto& shape = aStyle->StyleDisplay()->mShapeOutside; |
| 1312 | if (!shape.IsImage()) { |
| 1313 | return nullptr; |
| 1314 | } |
| 1315 | return shape.AsImage().GetImageRequest(); |
| 1316 | }; |
| 1317 | |
| 1318 | imgIRequest* oldShapeImage = GetShapeImageRequest(aOldComputedStyle); |
| 1319 | imgIRequest* newShapeImage = GetShapeImageRequest(Style()); |
| 1320 | if (oldShapeImage != newShapeImage) { |
| 1321 | if (oldShapeImage && HasImageRequest()) { |
| 1322 | loader->DisassociateRequestFromFrame(oldShapeImage, this); |
| 1323 | } |
| 1324 | if (newShapeImage) { |
| 1325 | loader->AssociateRequestToFrame( |
| 1326 | newShapeImage, this, |
| 1327 | ImageLoader::Flags:: |
| 1328 | RequiresReflowOnFirstFrameCompleteAndLoadEventBlocking); |
| 1329 | } |
| 1330 | } |
| 1331 | |
| 1332 | // SVGObserverUtils::GetEffectProperties() asserts that we only invoke it with |
| 1333 | // the first continuation so we need to check that in advance. |
| 1334 | const bool isNonTextFirstContinuation = isNonText && !GetPrevContinuation(); |
| 1335 | if (isNonTextFirstContinuation) { |
| 1336 | // Kick off loading of external SVG resources referenced from properties if |
| 1337 | // any. This currently includes filter, clip-path, and mask. |
| 1338 | SVGObserverUtils::InitiateResourceDocLoads(this); |
| 1339 | } |
| 1340 | |
| 1341 | // If the page contains markup that overrides text direction, and |
| 1342 | // does not contain any characters that would activate the Unicode |
| 1343 | // bidi algorithm, we need to call |SetBidiEnabled| on the pres |
| 1344 | // context before reflow starts. See bug 115921. |
| 1345 | if (StyleVisibility()->mDirection == StyleDirection::Rtl) { |
| 1346 | PresContext()->SetBidiEnabled(); |
| 1347 | } |
| 1348 | |
| 1349 | // The following part is for caching offset-path:path(). We cache the |
| 1350 | // flatten gfx path, so we don't have to rebuild and re-flattern it at |
| 1351 | // each cycle if we have animations on offset-* with a fixed offset-path. |
| 1352 | const StyleOffsetPath* oldPath = |
| 1353 | aOldComputedStyle ? &aOldComputedStyle->StyleDisplay()->mOffsetPath |
| 1354 | : nullptr; |
| 1355 | const StyleOffsetPath& newPath = StyleDisplay()->mOffsetPath; |
| 1356 | if (!oldPath || *oldPath != newPath) { |
| 1357 | // FIXME: Bug 1837042. Cache all basic shapes. |
| 1358 | if (newPath.IsPath()) { |
| 1359 | RefPtr<gfx::PathBuilder> builder = MotionPathUtils::GetPathBuilder(); |
| 1360 | RefPtr<gfx::Path> path = |
| 1361 | MotionPathUtils::BuildSVGPath(newPath.AsSVGPathData(), builder); |
| 1362 | if (path) { |
| 1363 | // The newPath could be path('') (i.e. empty path), so its gfx path |
| 1364 | // could be nullptr, and so we only set property for a non-empty path. |
| 1365 | SetProperty(nsIFrame::OffsetPathCache(), path.forget().take()); |
| 1366 | } else { |
| 1367 | // May have an old cached path, so we have to delete it. |
| 1368 | RemoveProperty(nsIFrame::OffsetPathCache()); |
| 1369 | } |
| 1370 | } else if (oldPath) { |
| 1371 | RemoveProperty(nsIFrame::OffsetPathCache()); |
| 1372 | } |
| 1373 | } |
| 1374 | |
| 1375 | if (IsPrimaryFrame()) { |
| 1376 | HandleLastRememberedSize(); |
| 1377 | } |
| 1378 | |
| 1379 | RemoveStateBits(NS_FRAME_SIMPLE_EVENT_REGIONS | NS_FRAME_SIMPLE_DISPLAYLIST); |
| 1380 | |
| 1381 | mMayHaveRoundedCorners = true; |
| 1382 | } |
| 1383 | |
| 1384 | void nsIFrame::HandleLastRememberedSize() { |
| 1385 | MOZ_ASSERT(IsPrimaryFrame())do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsPrimaryFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsPrimaryFrame()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("IsPrimaryFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1385); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsPrimaryFrame()" ")"); do { *((volatile int*)__null) = 1385; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1386 | // Storing a last remembered size requires contain-intrinsic-size, and using |
| 1387 | // a previously stored last remembered size requires content-visibility. |
| 1388 | if (!StaticPrefs::layout_css_contain_intrinsic_size_enabled() || |
| 1389 | !StaticPrefs::layout_css_content_visibility_enabled()) { |
| 1390 | return; |
| 1391 | } |
| 1392 | auto* element = Element::FromNodeOrNull(mContent); |
| 1393 | if (!element) { |
| 1394 | return; |
| 1395 | } |
| 1396 | const WritingMode wm = GetWritingMode(); |
| 1397 | const nsStylePosition* stylePos = StylePosition(); |
| 1398 | bool canRememberBSize = stylePos->ContainIntrinsicBSize(wm).HasAuto(); |
| 1399 | bool canRememberISize = stylePos->ContainIntrinsicISize(wm).HasAuto(); |
| 1400 | if (!canRememberBSize) { |
| 1401 | element->RemoveLastRememberedBSize(); |
| 1402 | } |
| 1403 | if (!canRememberISize) { |
| 1404 | element->RemoveLastRememberedISize(); |
| 1405 | } |
| 1406 | if ((canRememberBSize || canRememberISize) && !HidesContent()) { |
| 1407 | bool isNonReplacedInline = IsLineParticipant() && !IsReplaced(); |
| 1408 | if (!isNonReplacedInline) { |
| 1409 | PresContext()->Document()->ObserveForLastRememberedSize(*element); |
| 1410 | return; |
| 1411 | } |
| 1412 | } |
| 1413 | PresContext()->Document()->UnobserveForLastRememberedSize(*element); |
| 1414 | } |
| 1415 | |
| 1416 | #ifdef MOZ_DIAGNOSTIC_ASSERT_ENABLED1 |
| 1417 | void nsIFrame::AssertNewStyleIsSane(ComputedStyle& aNewStyle) { |
| 1418 | MOZ_DIAGNOSTIC_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1419 | aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1420 | // ::first-line continuations are weird, this should probably be fixed viado { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1421 | // bug 1465474.do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1422 | (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1423 | aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1424 | // ::first-letter continuations are broken, in particular floating ones,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1425 | // see bug 1490281. The construction code tries to fix this up after thedo { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1426 | // fact, then restyling undoes it...do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1427 | (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1428 | aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1429 | (mComputedStyle->GetPseudoType() ==do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1430 | PseudoStyleType::firstLetterContinuation &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1431 | aNewStyle.GetPseudoType() == PseudoStyleType::mozText))do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType () || (mComputedStyle->GetPseudoType() == PseudoStyleType:: firstLine && aNewStyle.GetPseudoType() == PseudoStyleType ::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType ::mozText && aNewStyle.GetPseudoType() == PseudoStyleType ::firstLetterContinuation) || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLetterContinuation && aNewStyle .GetPseudoType() == PseudoStyleType::mozText))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType () == PseudoStyleType::firstLine && aNewStyle.GetPseudoType () == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType () == PseudoStyleType::mozText && aNewStyle.GetPseudoType () == PseudoStyleType::firstLetterContinuation) || (mComputedStyle ->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1431); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "aNewStyle.GetPseudoType() == mComputedStyle->GetPseudoType() || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLine && aNewStyle.GetPseudoType() == PseudoStyleType::mozLineFrame) || (mComputedStyle->GetPseudoType() == PseudoStyleType::mozText && aNewStyle.GetPseudoType() == PseudoStyleType::firstLetterContinuation) || (mComputedStyle->GetPseudoType() == PseudoStyleType::firstLetterContinuation && aNewStyle.GetPseudoType() == PseudoStyleType::mozText)" ")"); do { *((volatile int*)__null) = 1431; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1432 | } |
| 1433 | #endif |
| 1434 | |
| 1435 | void nsIFrame::ReparentFrameViewTo(nsViewManager* aViewManager, |
| 1436 | nsView* aNewParentView) { |
| 1437 | if (HasView()) { |
| 1438 | if (IsMenuPopupFrame()) { |
| 1439 | // This view must be parented by the root view, don't reparent it. |
| 1440 | return; |
| 1441 | } |
| 1442 | nsView* view = GetView(); |
| 1443 | aViewManager->RemoveChild(view); |
| 1444 | |
| 1445 | // The view will remember the Z-order and other attributes that have been |
| 1446 | // set on it. |
| 1447 | nsView* insertBefore = |
| 1448 | nsLayoutUtils::FindSiblingViewFor(aNewParentView, this); |
| 1449 | aViewManager->InsertChild(aNewParentView, view, insertBefore, |
| 1450 | insertBefore != nullptr); |
| 1451 | } else if (HasAnyStateBits(NS_FRAME_HAS_CHILD_WITH_VIEW)) { |
| 1452 | for (const auto& childList : ChildLists()) { |
| 1453 | // Iterate the child frames, and check each child frame to see if it has |
| 1454 | // a view |
| 1455 | for (nsIFrame* child : childList.mList) { |
| 1456 | child->ReparentFrameViewTo(aViewManager, aNewParentView); |
| 1457 | } |
| 1458 | } |
| 1459 | } |
| 1460 | } |
| 1461 | |
| 1462 | void nsIFrame::SyncFrameViewProperties(nsView* aView) { |
| 1463 | if (!aView) { |
| 1464 | aView = GetView(); |
| 1465 | if (!aView) { |
| 1466 | return; |
| 1467 | } |
| 1468 | } |
| 1469 | |
| 1470 | nsViewManager* vm = aView->GetViewManager(); |
| 1471 | |
| 1472 | // Make sure visibility is correct. This only affects nsSubDocumentFrame. |
| 1473 | if (!SupportsVisibilityHidden()) { |
| 1474 | // See if the view should be hidden or visible |
| 1475 | ComputedStyle* sc = Style(); |
| 1476 | vm->SetViewVisibility(aView, sc->StyleVisibility()->IsVisible() |
| 1477 | ? ViewVisibility::Show |
| 1478 | : ViewVisibility::Hide); |
| 1479 | } |
| 1480 | |
| 1481 | const auto zIndex = ZIndex(); |
| 1482 | const bool autoZIndex = !zIndex; |
| 1483 | vm->SetViewZIndex(aView, autoZIndex, zIndex.valueOr(0)); |
| 1484 | } |
| 1485 | |
| 1486 | void nsIFrame::CreateView() { |
| 1487 | MOZ_ASSERT(!HasView())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasView())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!HasView()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!HasView()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1487); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasView()" ")"); do { *((volatile int*)__null) = 1487; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1488 | |
| 1489 | nsView* parentView = GetParent()->GetClosestView(); |
| 1490 | MOZ_ASSERT(parentView, "no parent with view")do { static_assert( mozilla::detail::AssertionConditionType< decltype(parentView)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(parentView))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("parentView" " (" "no parent with view" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1490); AnnotateMozCrashReason("MOZ_ASSERT" "(" "parentView" ") (" "no parent with view" ")"); do { *((volatile int*)__null ) = 1490; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 1491 | |
| 1492 | nsViewManager* viewManager = parentView->GetViewManager(); |
| 1493 | MOZ_ASSERT(viewManager, "null view manager")do { static_assert( mozilla::detail::AssertionConditionType< decltype(viewManager)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(viewManager))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("viewManager" " (" "null view manager" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1493); AnnotateMozCrashReason("MOZ_ASSERT" "(" "viewManager" ") (" "null view manager" ")"); do { *((volatile int*)__null ) = 1493; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 1494 | |
| 1495 | nsView* view = viewManager->CreateView(GetRect(), parentView); |
| 1496 | SyncFrameViewProperties(view); |
| 1497 | |
| 1498 | nsView* insertBefore = nsLayoutUtils::FindSiblingViewFor(parentView, this); |
| 1499 | // we insert this view 'above' the insertBefore view, unless insertBefore is |
| 1500 | // null, in which case we want to call with aAbove == false to insert at the |
| 1501 | // beginning in document order |
| 1502 | viewManager->InsertChild(parentView, view, insertBefore, |
| 1503 | insertBefore != nullptr); |
| 1504 | |
| 1505 | // REVIEW: Don't create a widget for fixed-pos elements anymore. |
| 1506 | // ComputeRepaintRegionForCopy will calculate the right area to repaint |
| 1507 | // when we scroll. |
| 1508 | // Reparent views on any child frames (or their descendants) to this |
| 1509 | // view. We can just call ReparentFrameViewTo on this frame because |
| 1510 | // we know this frame has no view, so it will crawl the children. Also, |
| 1511 | // we know that any descendants with views must have 'parentView' as their |
| 1512 | // parent view. |
| 1513 | ReparentFrameViewTo(viewManager, view); |
| 1514 | |
| 1515 | // Remember our view |
| 1516 | SetView(view); |
| 1517 | |
| 1518 | NS_FRAME_LOG(NS_FRAME_TRACE_CALLS,do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { printf_stderr ("nsIFrame::CreateView: frame=%p view=%p" , this, view); } } while (0) |
| 1519 | ("nsIFrame::CreateView: frame=%p view=%p", this, view))do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { printf_stderr ("nsIFrame::CreateView: frame=%p view=%p" , this, view); } } while (0); |
| 1520 | } |
| 1521 | |
| 1522 | /* virtual */ |
| 1523 | nsMargin nsIFrame::GetUsedMargin() const { |
| 1524 | nsMargin margin; |
| 1525 | if (((mState & NS_FRAME_FIRST_REFLOW) && !(mState & NS_FRAME_IN_REFLOW)) || |
| 1526 | IsInSVGTextSubtree()) { |
| 1527 | return margin; |
| 1528 | } |
| 1529 | |
| 1530 | if (nsMargin* m = GetProperty(UsedMarginProperty())) { |
| 1531 | margin = *m; |
| 1532 | } else if (!StyleMargin()->GetMargin(margin)) { |
| 1533 | // If we get here, our caller probably shouldn't be calling us... |
| 1534 | NS_ERROR(do { NS_DebugBreak(NS_DEBUG_ASSERTION, "Returning bogus 0-sized margin, because this margin " "depends on layout & isn't cached!", "Error", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1536); MOZ_PretendNoReturn(); } while (0) |
| 1535 | "Returning bogus 0-sized margin, because this margin "do { NS_DebugBreak(NS_DEBUG_ASSERTION, "Returning bogus 0-sized margin, because this margin " "depends on layout & isn't cached!", "Error", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1536); MOZ_PretendNoReturn(); } while (0) |
| 1536 | "depends on layout & isn't cached!")do { NS_DebugBreak(NS_DEBUG_ASSERTION, "Returning bogus 0-sized margin, because this margin " "depends on layout & isn't cached!", "Error", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1536); MOZ_PretendNoReturn(); } while (0); |
| 1537 | } |
| 1538 | return margin; |
| 1539 | } |
| 1540 | |
| 1541 | /* virtual */ |
| 1542 | nsMargin nsIFrame::GetUsedBorder() const { |
| 1543 | if (((mState & NS_FRAME_FIRST_REFLOW) && !(mState & NS_FRAME_IN_REFLOW)) || |
| 1544 | IsInSVGTextSubtree()) { |
| 1545 | return {}; |
| 1546 | } |
| 1547 | |
| 1548 | const nsStyleDisplay* disp = StyleDisplay(); |
| 1549 | if (IsThemed(disp)) { |
| 1550 | // Theme methods don't use const-ness. |
| 1551 | auto* mutable_this = const_cast<nsIFrame*>(this); |
| 1552 | nsPresContext* pc = PresContext(); |
| 1553 | LayoutDeviceIntMargin widgetBorder = pc->Theme()->GetWidgetBorder( |
| 1554 | pc->DeviceContext(), mutable_this, disp->EffectiveAppearance()); |
| 1555 | return LayoutDevicePixel::ToAppUnits(widgetBorder, |
| 1556 | pc->AppUnitsPerDevPixel()); |
| 1557 | } |
| 1558 | |
| 1559 | return StyleBorder()->GetComputedBorder(); |
| 1560 | } |
| 1561 | |
| 1562 | /* virtual */ |
| 1563 | nsMargin nsIFrame::GetUsedPadding() const { |
| 1564 | nsMargin padding; |
| 1565 | if (((mState & NS_FRAME_FIRST_REFLOW) && !(mState & NS_FRAME_IN_REFLOW)) || |
| 1566 | IsInSVGTextSubtree()) { |
| 1567 | return padding; |
| 1568 | } |
| 1569 | |
| 1570 | const nsStyleDisplay* disp = StyleDisplay(); |
| 1571 | if (IsThemed(disp)) { |
| 1572 | // Theme methods don't use const-ness. |
| 1573 | nsIFrame* mutable_this = const_cast<nsIFrame*>(this); |
| 1574 | nsPresContext* pc = PresContext(); |
| 1575 | LayoutDeviceIntMargin widgetPadding; |
| 1576 | if (pc->Theme()->GetWidgetPadding(pc->DeviceContext(), mutable_this, |
| 1577 | disp->EffectiveAppearance(), |
| 1578 | &widgetPadding)) { |
| 1579 | return LayoutDevicePixel::ToAppUnits(widgetPadding, |
| 1580 | pc->AppUnitsPerDevPixel()); |
| 1581 | } |
| 1582 | } |
| 1583 | |
| 1584 | if (nsMargin* p = GetProperty(UsedPaddingProperty())) { |
| 1585 | padding = *p; |
| 1586 | } else if (!StylePadding()->GetPadding(padding)) { |
| 1587 | // If we get here, our caller probably shouldn't be calling us... |
| 1588 | NS_ERROR(do { NS_DebugBreak(NS_DEBUG_ASSERTION, "Returning bogus 0-sized padding, because this padding " "depends on layout & isn't cached!", "Error", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1590); MOZ_PretendNoReturn(); } while (0) |
| 1589 | "Returning bogus 0-sized padding, because this padding "do { NS_DebugBreak(NS_DEBUG_ASSERTION, "Returning bogus 0-sized padding, because this padding " "depends on layout & isn't cached!", "Error", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1590); MOZ_PretendNoReturn(); } while (0) |
| 1590 | "depends on layout & isn't cached!")do { NS_DebugBreak(NS_DEBUG_ASSERTION, "Returning bogus 0-sized padding, because this padding " "depends on layout & isn't cached!", "Error", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1590); MOZ_PretendNoReturn(); } while (0); |
| 1591 | } |
| 1592 | return padding; |
| 1593 | } |
| 1594 | |
| 1595 | nsIFrame::Sides nsIFrame::GetSkipSides() const { |
| 1596 | if (MOZ_UNLIKELY(StyleBorder()->mBoxDecorationBreak ==(__builtin_expect(!!(StyleBorder()->mBoxDecorationBreak == StyleBoxDecorationBreak::Clone), 0)) |
| 1597 | StyleBoxDecorationBreak::Clone)(__builtin_expect(!!(StyleBorder()->mBoxDecorationBreak == StyleBoxDecorationBreak::Clone), 0)) && |
| 1598 | !HasAnyStateBits(NS_FRAME_IS_OVERFLOW_CONTAINER)) { |
| 1599 | return Sides(); |
| 1600 | } |
| 1601 | |
| 1602 | // Convert the logical skip sides to physical sides using the frame's |
| 1603 | // writing mode |
| 1604 | WritingMode writingMode = GetWritingMode(); |
| 1605 | LogicalSides logicalSkip = GetLogicalSkipSides(); |
| 1606 | Sides skip; |
| 1607 | |
| 1608 | if (logicalSkip.BStart()) { |
| 1609 | if (writingMode.IsVertical()) { |
| 1610 | skip |= writingMode.IsVerticalLR() ? SideBits::eLeft : SideBits::eRight; |
| 1611 | } else { |
| 1612 | skip |= SideBits::eTop; |
| 1613 | } |
| 1614 | } |
| 1615 | |
| 1616 | if (logicalSkip.BEnd()) { |
| 1617 | if (writingMode.IsVertical()) { |
| 1618 | skip |= writingMode.IsVerticalLR() ? SideBits::eRight : SideBits::eLeft; |
| 1619 | } else { |
| 1620 | skip |= SideBits::eBottom; |
| 1621 | } |
| 1622 | } |
| 1623 | |
| 1624 | if (logicalSkip.IStart()) { |
| 1625 | if (writingMode.IsVertical()) { |
| 1626 | skip |= SideBits::eTop; |
| 1627 | } else { |
| 1628 | skip |= writingMode.IsBidiLTR() ? SideBits::eLeft : SideBits::eRight; |
| 1629 | } |
| 1630 | } |
| 1631 | |
| 1632 | if (logicalSkip.IEnd()) { |
| 1633 | if (writingMode.IsVertical()) { |
| 1634 | skip |= SideBits::eBottom; |
| 1635 | } else { |
| 1636 | skip |= writingMode.IsBidiLTR() ? SideBits::eRight : SideBits::eLeft; |
| 1637 | } |
| 1638 | } |
| 1639 | return skip; |
| 1640 | } |
| 1641 | |
| 1642 | nsRect nsIFrame::GetPaddingRectRelativeToSelf() const { |
| 1643 | nsMargin border = GetUsedBorder().ApplySkipSides(GetSkipSides()); |
| 1644 | nsRect r(0, 0, mRect.width, mRect.height); |
| 1645 | r.Deflate(border); |
| 1646 | return r; |
| 1647 | } |
| 1648 | |
| 1649 | nsRect nsIFrame::GetPaddingRect() const { |
| 1650 | return GetPaddingRectRelativeToSelf() + GetPosition(); |
| 1651 | } |
| 1652 | |
| 1653 | WritingMode nsIFrame::WritingModeForLine(WritingMode aSelfWM, |
| 1654 | nsIFrame* aSubFrame) const { |
| 1655 | MOZ_ASSERT(aSelfWM == GetWritingMode())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aSelfWM == GetWritingMode())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aSelfWM == GetWritingMode()) )), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aSelfWM == GetWritingMode()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1655); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aSelfWM == GetWritingMode()" ")"); do { *((volatile int*)__null) = 1655; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1656 | WritingMode writingMode = aSelfWM; |
| 1657 | |
| 1658 | if (StyleTextReset()->mUnicodeBidi == StyleUnicodeBidi::Plaintext) { |
| 1659 | mozilla::intl::BidiEmbeddingLevel frameLevel = |
| 1660 | nsBidiPresUtils::GetFrameBaseLevel(aSubFrame); |
| 1661 | writingMode.SetDirectionFromBidiLevel(frameLevel); |
| 1662 | } |
| 1663 | |
| 1664 | return writingMode; |
| 1665 | } |
| 1666 | |
| 1667 | nsRect nsIFrame::GetMarginRect() const { |
| 1668 | return GetMarginRectRelativeToSelf() + GetPosition(); |
| 1669 | } |
| 1670 | |
| 1671 | nsRect nsIFrame::GetMarginRectRelativeToSelf() const { |
| 1672 | nsMargin m = GetUsedMargin().ApplySkipSides(GetSkipSides()); |
| 1673 | nsRect r(0, 0, mRect.width, mRect.height); |
| 1674 | r.Inflate(m); |
| 1675 | return r; |
| 1676 | } |
| 1677 | |
| 1678 | bool nsIFrame::IsTransformed() const { |
| 1679 | if (!HasAnyStateBits(NS_FRAME_MAY_BE_TRANSFORMED)) { |
| 1680 | MOZ_ASSERT(!IsCSSTransformed())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsCSSTransformed())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsCSSTransformed()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsCSSTransformed()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1680); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsCSSTransformed()" ")"); do { *((volatile int*)__null) = 1680; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1681 | MOZ_ASSERT(!IsSVGTransformed())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsSVGTransformed())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!IsSVGTransformed()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!IsSVGTransformed()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1681); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsSVGTransformed()" ")"); do { *((volatile int*)__null) = 1681; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1682 | return false; |
| 1683 | } |
| 1684 | return IsCSSTransformed() || IsSVGTransformed(); |
| 1685 | } |
| 1686 | |
| 1687 | bool nsIFrame::IsCSSTransformed() const { |
| 1688 | return HasAnyStateBits(NS_FRAME_MAY_BE_TRANSFORMED) && |
| 1689 | (StyleDisplay()->HasTransform(this) || HasAnimationOfTransform()); |
| 1690 | } |
| 1691 | |
| 1692 | bool nsIFrame::HasAnimationOfTransform() const { |
| 1693 | return IsPrimaryFrame() && |
| 1694 | nsLayoutUtils::HasAnimationOfTransformAndMotionPath(this) && |
| 1695 | SupportsCSSTransforms(); |
| 1696 | } |
| 1697 | |
| 1698 | bool nsIFrame::ChildrenHavePerspective( |
| 1699 | const nsStyleDisplay* aStyleDisplay) const { |
| 1700 | MOZ_ASSERT(aStyleDisplay == StyleDisplay())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStyleDisplay == StyleDisplay())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStyleDisplay == StyleDisplay ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aStyleDisplay == StyleDisplay()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1700); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStyleDisplay == StyleDisplay()" ")"); do { *((volatile int*)__null) = 1700; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1701 | return aStyleDisplay->HasPerspective(this); |
| 1702 | } |
| 1703 | |
| 1704 | bool nsIFrame::HasAnimationOfOpacity(EffectSet* aEffectSet) const { |
| 1705 | return ((nsLayoutUtils::IsPrimaryStyleFrame(this) || |
| 1706 | nsLayoutUtils::FirstContinuationOrIBSplitSibling(this) |
| 1707 | ->IsPrimaryFrame()) && |
| 1708 | nsLayoutUtils::HasAnimationOfPropertySet( |
| 1709 | this, nsCSSPropertyIDSet::OpacityProperties(), aEffectSet)); |
| 1710 | } |
| 1711 | |
| 1712 | bool nsIFrame::HasOpacityInternal(float aThreshold, |
| 1713 | const nsStyleDisplay* aStyleDisplay, |
| 1714 | const nsStyleEffects* aStyleEffects, |
| 1715 | EffectSet* aEffectSet) const { |
| 1716 | MOZ_ASSERT(0.0 <= aThreshold && aThreshold <= 1.0, "Invalid argument")do { static_assert( mozilla::detail::AssertionConditionType< decltype(0.0 <= aThreshold && aThreshold <= 1.0 )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(0.0 <= aThreshold && aThreshold <= 1.0 ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "0.0 <= aThreshold && aThreshold <= 1.0" " (" "Invalid argument" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 1716); AnnotateMozCrashReason("MOZ_ASSERT" "(" "0.0 <= aThreshold && aThreshold <= 1.0" ") (" "Invalid argument" ")"); do { *((volatile int*)__null) = 1716; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 1717 | if (aStyleEffects->mOpacity < aThreshold || |
| 1718 | aStyleDisplay->mWillChange.bits & StyleWillChangeBits::OPACITY) { |
| 1719 | return true; |
| 1720 | } |
| 1721 | |
| 1722 | if (!mMayHaveOpacityAnimation) { |
| 1723 | return false; |
| 1724 | } |
| 1725 | |
| 1726 | return HasAnimationOfOpacity(aEffectSet); |
| 1727 | } |
| 1728 | |
| 1729 | bool nsIFrame::IsSVGTransformed(gfx::Matrix* aOwnTransforms, |
| 1730 | gfx::Matrix* aFromParentTransforms) const { |
| 1731 | return false; |
| 1732 | } |
| 1733 | |
| 1734 | bool nsIFrame::Extend3DContext(const nsStyleDisplay* aStyleDisplay, |
| 1735 | const nsStyleEffects* aStyleEffects, |
| 1736 | mozilla::EffectSet* aEffectSetForOpacity) const { |
| 1737 | if (!HasAnyStateBits(NS_FRAME_MAY_BE_TRANSFORMED)) { |
| 1738 | return false; |
| 1739 | } |
| 1740 | const nsStyleDisplay* disp = StyleDisplayWithOptionalParam(aStyleDisplay); |
| 1741 | if (disp->mTransformStyle != StyleTransformStyle::Preserve3d || |
| 1742 | !SupportsCSSTransforms()) { |
| 1743 | return false; |
| 1744 | } |
| 1745 | |
| 1746 | // If we're all scroll frame, then all descendants will be clipped, so we |
| 1747 | // can't preserve 3d. |
| 1748 | if (IsScrollFrame()) { |
| 1749 | return false; |
| 1750 | } |
| 1751 | |
| 1752 | const nsStyleEffects* effects = StyleEffectsWithOptionalParam(aStyleEffects); |
| 1753 | if (HasOpacity(disp, effects, aEffectSetForOpacity)) { |
| 1754 | return false; |
| 1755 | } |
| 1756 | |
| 1757 | return ShouldApplyOverflowClipping(disp) == PhysicalAxes::None && |
| 1758 | !GetClipPropClipRect(disp, effects, GetSize()) && |
| 1759 | !SVGIntegrationUtils::UsingEffectsForFrame(this) && |
| 1760 | !effects->HasMixBlendMode() && |
| 1761 | disp->mIsolation != StyleIsolation::Isolate; |
| 1762 | } |
| 1763 | |
| 1764 | bool nsIFrame::Combines3DTransformWithAncestors() const { |
| 1765 | // Check these first as they are faster then both calls below and are we are |
| 1766 | // likely to hit the early return (backface hidden is uncommon and |
| 1767 | // GetReferenceFrame is a hot caller of this which only calls this if |
| 1768 | // IsCSSTransformed is false). |
| 1769 | if (!IsCSSTransformed() && !BackfaceIsHidden()) { |
| 1770 | return false; |
| 1771 | } |
| 1772 | nsIFrame* parent = GetClosestFlattenedTreeAncestorPrimaryFrame(); |
| 1773 | return parent && parent->Extend3DContext(); |
| 1774 | } |
| 1775 | |
| 1776 | bool nsIFrame::In3DContextAndBackfaceIsHidden() const { |
| 1777 | // While both tests fail most of the time, test BackfaceIsHidden() |
| 1778 | // first since it's likely to fail faster. |
| 1779 | return BackfaceIsHidden() && Combines3DTransformWithAncestors(); |
| 1780 | } |
| 1781 | |
| 1782 | bool nsIFrame::HasPerspective() const { |
| 1783 | if (!IsCSSTransformed()) { |
| 1784 | return false; |
| 1785 | } |
| 1786 | nsIFrame* parent = GetClosestFlattenedTreeAncestorPrimaryFrame(); |
| 1787 | if (!parent) { |
| 1788 | return false; |
| 1789 | } |
| 1790 | return parent->ChildrenHavePerspective(); |
| 1791 | } |
| 1792 | |
| 1793 | nsRect nsIFrame::GetContentRectRelativeToSelf() const { |
| 1794 | nsMargin bp = GetUsedBorderAndPadding().ApplySkipSides(GetSkipSides()); |
| 1795 | nsRect r(0, 0, mRect.width, mRect.height); |
| 1796 | r.Deflate(bp); |
| 1797 | return r; |
| 1798 | } |
| 1799 | |
| 1800 | nsRect nsIFrame::GetContentRect() const { |
| 1801 | return GetContentRectRelativeToSelf() + GetPosition(); |
| 1802 | } |
| 1803 | |
| 1804 | bool nsIFrame::ComputeBorderRadii(const BorderRadius& aBorderRadius, |
| 1805 | const nsSize& aFrameSize, |
| 1806 | const nsSize& aBorderArea, Sides aSkipSides, |
| 1807 | nscoord aRadii[8]) { |
| 1808 | // Percentages are relative to whichever side they're on. |
| 1809 | for (const auto i : mozilla::AllPhysicalHalfCorners()) { |
| 1810 | const LengthPercentage& c = aBorderRadius.Get(i); |
| 1811 | nscoord axis = HalfCornerIsX(i) ? aFrameSize.width : aFrameSize.height; |
| 1812 | aRadii[i] = std::max(0, c.Resolve(axis)); |
| 1813 | } |
| 1814 | |
| 1815 | if (aSkipSides.Top()) { |
| 1816 | aRadii[eCornerTopLeftX] = 0; |
| 1817 | aRadii[eCornerTopLeftY] = 0; |
| 1818 | aRadii[eCornerTopRightX] = 0; |
| 1819 | aRadii[eCornerTopRightY] = 0; |
| 1820 | } |
| 1821 | |
| 1822 | if (aSkipSides.Right()) { |
| 1823 | aRadii[eCornerTopRightX] = 0; |
| 1824 | aRadii[eCornerTopRightY] = 0; |
| 1825 | aRadii[eCornerBottomRightX] = 0; |
| 1826 | aRadii[eCornerBottomRightY] = 0; |
| 1827 | } |
| 1828 | |
| 1829 | if (aSkipSides.Bottom()) { |
| 1830 | aRadii[eCornerBottomRightX] = 0; |
| 1831 | aRadii[eCornerBottomRightY] = 0; |
| 1832 | aRadii[eCornerBottomLeftX] = 0; |
| 1833 | aRadii[eCornerBottomLeftY] = 0; |
| 1834 | } |
| 1835 | |
| 1836 | if (aSkipSides.Left()) { |
| 1837 | aRadii[eCornerBottomLeftX] = 0; |
| 1838 | aRadii[eCornerBottomLeftY] = 0; |
| 1839 | aRadii[eCornerTopLeftX] = 0; |
| 1840 | aRadii[eCornerTopLeftY] = 0; |
| 1841 | } |
| 1842 | |
| 1843 | // css3-background specifies this algorithm for reducing |
| 1844 | // corner radii when they are too big. |
| 1845 | bool haveRadius = false; |
| 1846 | double ratio = 1.0f; |
| 1847 | for (const auto side : mozilla::AllPhysicalSides()) { |
| 1848 | uint32_t hc1 = SideToHalfCorner(side, false, true); |
| 1849 | uint32_t hc2 = SideToHalfCorner(side, true, true); |
| 1850 | nscoord length = |
| 1851 | SideIsVertical(side) ? aBorderArea.height : aBorderArea.width; |
| 1852 | nscoord sum = aRadii[hc1] + aRadii[hc2]; |
| 1853 | if (sum) { |
| 1854 | haveRadius = true; |
| 1855 | // avoid floating point division in the normal case |
| 1856 | if (length < sum) { |
| 1857 | ratio = std::min(ratio, double(length) / sum); |
| 1858 | } |
| 1859 | } |
| 1860 | } |
| 1861 | if (ratio < 1.0) { |
| 1862 | for (const auto corner : mozilla::AllPhysicalHalfCorners()) { |
| 1863 | aRadii[corner] *= ratio; |
| 1864 | } |
| 1865 | } |
| 1866 | |
| 1867 | return haveRadius; |
| 1868 | } |
| 1869 | |
| 1870 | void nsIFrame::AdjustBorderRadii(nscoord aRadii[8], const nsMargin& aOffsets) { |
| 1871 | auto AdjustOffset = [](const uint32_t aRadius, const nscoord aOffset) { |
| 1872 | // Implement the cubic formula to adjust offset when aOffset > 0 and |
| 1873 | // aRadius / aOffset < 1. |
| 1874 | // https://drafts.csswg.org/css-shapes/#valdef-shape-box-margin-box |
| 1875 | if (aOffset > 0) { |
| 1876 | const double ratio = aRadius / double(aOffset); |
| 1877 | if (ratio < 1.0) { |
| 1878 | return nscoord(aOffset * (1.0 + std::pow(ratio - 1, 3))); |
| 1879 | } |
| 1880 | } |
| 1881 | return aOffset; |
| 1882 | }; |
| 1883 | |
| 1884 | for (const auto side : mozilla::AllPhysicalSides()) { |
| 1885 | const nscoord offset = aOffsets.Side(side); |
| 1886 | const uint32_t hc1 = SideToHalfCorner(side, false, false); |
| 1887 | const uint32_t hc2 = SideToHalfCorner(side, true, false); |
| 1888 | if (aRadii[hc1] > 0) { |
| 1889 | const nscoord offset1 = AdjustOffset(aRadii[hc1], offset); |
| 1890 | aRadii[hc1] = std::max(0, aRadii[hc1] + offset1); |
| 1891 | } |
| 1892 | if (aRadii[hc2] > 0) { |
| 1893 | const nscoord offset2 = AdjustOffset(aRadii[hc2], offset); |
| 1894 | aRadii[hc2] = std::max(0, aRadii[hc2] + offset2); |
| 1895 | } |
| 1896 | } |
| 1897 | } |
| 1898 | |
| 1899 | static inline bool RadiiAreDefinitelyZero(const BorderRadius& aBorderRadius) { |
| 1900 | for (const auto corner : mozilla::AllPhysicalHalfCorners()) { |
| 1901 | if (!aBorderRadius.Get(corner).IsDefinitelyZero()) { |
| 1902 | return false; |
| 1903 | } |
| 1904 | } |
| 1905 | return true; |
| 1906 | } |
| 1907 | |
| 1908 | /* virtual */ |
| 1909 | bool nsIFrame::GetBorderRadii(const nsSize& aFrameSize, |
| 1910 | const nsSize& aBorderArea, Sides aSkipSides, |
| 1911 | nscoord aRadii[8]) const { |
| 1912 | if (!mMayHaveRoundedCorners) { |
| 1913 | memset(aRadii, 0, sizeof(nscoord) * 8); |
| 1914 | return false; |
| 1915 | } |
| 1916 | |
| 1917 | if (IsThemed()) { |
| 1918 | // When we're themed, the native theme code draws the border and |
| 1919 | // background, and therefore it doesn't make sense to tell other |
| 1920 | // code that's interested in border-radius that we have any radii. |
| 1921 | // |
| 1922 | // In an ideal world, we might have a way for the them to tell us an |
| 1923 | // border radius, but since we don't, we're better off assuming |
| 1924 | // zero. |
| 1925 | for (const auto corner : mozilla::AllPhysicalHalfCorners()) { |
| 1926 | aRadii[corner] = 0; |
| 1927 | } |
| 1928 | return false; |
| 1929 | } |
| 1930 | |
| 1931 | const auto& radii = StyleBorder()->mBorderRadius; |
| 1932 | const bool hasRadii = |
| 1933 | ComputeBorderRadii(radii, aFrameSize, aBorderArea, aSkipSides, aRadii); |
| 1934 | if (!hasRadii) { |
| 1935 | // TODO(emilio): Maybe we can just remove this bit and do the |
| 1936 | // IsDefinitelyZero check unconditionally. That should still avoid most of |
| 1937 | // the work, though maybe not the cache miss of going through the style and |
| 1938 | // the border struct. |
| 1939 | const_cast<nsIFrame*>(this)->mMayHaveRoundedCorners = |
| 1940 | !RadiiAreDefinitelyZero(radii); |
| 1941 | } |
| 1942 | return hasRadii; |
| 1943 | } |
| 1944 | |
| 1945 | bool nsIFrame::GetBorderRadii(nscoord aRadii[8]) const { |
| 1946 | nsSize sz = GetSize(); |
| 1947 | return GetBorderRadii(sz, sz, GetSkipSides(), aRadii); |
| 1948 | } |
| 1949 | |
| 1950 | bool nsIFrame::GetMarginBoxBorderRadii(nscoord aRadii[8]) const { |
| 1951 | return GetBoxBorderRadii(aRadii, GetUsedMargin()); |
| 1952 | } |
| 1953 | |
| 1954 | bool nsIFrame::GetPaddingBoxBorderRadii(nscoord aRadii[8]) const { |
| 1955 | return GetBoxBorderRadii(aRadii, -GetUsedBorder()); |
| 1956 | } |
| 1957 | |
| 1958 | bool nsIFrame::GetContentBoxBorderRadii(nscoord aRadii[8]) const { |
| 1959 | return GetBoxBorderRadii(aRadii, -GetUsedBorderAndPadding()); |
| 1960 | } |
| 1961 | |
| 1962 | bool nsIFrame::GetBoxBorderRadii(nscoord aRadii[8], |
| 1963 | const nsMargin& aOffsets) const { |
| 1964 | if (!GetBorderRadii(aRadii)) { |
| 1965 | return false; |
| 1966 | } |
| 1967 | AdjustBorderRadii(aRadii, aOffsets); |
| 1968 | for (const auto corner : mozilla::AllPhysicalHalfCorners()) { |
| 1969 | if (aRadii[corner]) { |
| 1970 | return true; |
| 1971 | } |
| 1972 | } |
| 1973 | return false; |
| 1974 | } |
| 1975 | |
| 1976 | bool nsIFrame::GetShapeBoxBorderRadii(nscoord aRadii[8]) const { |
| 1977 | using Tag = StyleShapeOutside::Tag; |
| 1978 | auto& shapeOutside = StyleDisplay()->mShapeOutside; |
| 1979 | auto box = StyleShapeBox::MarginBox; |
| 1980 | switch (shapeOutside.tag) { |
| 1981 | case Tag::Image: |
| 1982 | case Tag::None: |
| 1983 | return false; |
| 1984 | case Tag::Box: |
| 1985 | box = shapeOutside.AsBox(); |
| 1986 | break; |
| 1987 | case Tag::Shape: |
| 1988 | box = shapeOutside.AsShape()._1; |
| 1989 | break; |
| 1990 | } |
| 1991 | |
| 1992 | switch (box) { |
| 1993 | case StyleShapeBox::ContentBox: |
| 1994 | return GetContentBoxBorderRadii(aRadii); |
| 1995 | case StyleShapeBox::PaddingBox: |
| 1996 | return GetPaddingBoxBorderRadii(aRadii); |
| 1997 | case StyleShapeBox::BorderBox: |
| 1998 | return GetBorderRadii(aRadii); |
| 1999 | case StyleShapeBox::MarginBox: |
| 2000 | return GetMarginBoxBorderRadii(aRadii); |
| 2001 | default: |
| 2002 | MOZ_ASSERT_UNREACHABLE("Unexpected box 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: " "Unexpected box value" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2002); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "Unexpected box value" ")"); do { *((volatile int*)__null) = 2002; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 2003 | return false; |
| 2004 | } |
| 2005 | } |
| 2006 | |
| 2007 | ComputedStyle* nsIFrame::GetAdditionalComputedStyle(int32_t aIndex) const { |
| 2008 | MOZ_ASSERT(aIndex >= 0, "invalid index number")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aIndex >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aIndex >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aIndex >= 0" " (" "invalid index number" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2008); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aIndex >= 0" ") (" "invalid index number" ")"); do { *((volatile int*)__null ) = 2008; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 2009 | return nullptr; |
| 2010 | } |
| 2011 | |
| 2012 | void nsIFrame::SetAdditionalComputedStyle(int32_t aIndex, |
| 2013 | ComputedStyle* aComputedStyle) { |
| 2014 | MOZ_ASSERT(aIndex >= 0, "invalid index number")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aIndex >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aIndex >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aIndex >= 0" " (" "invalid index number" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2014); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aIndex >= 0" ") (" "invalid index number" ")"); do { *((volatile int*)__null ) = 2014; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 2015 | } |
| 2016 | |
| 2017 | nscoord nsIFrame::SynthesizeFallbackBaseline( |
| 2018 | WritingMode aWM, BaselineSharingGroup aBaselineGroup) const { |
| 2019 | const auto margin = GetLogicalUsedMargin(aWM); |
| 2020 | NS_ASSERTION(!IsSubtreeDirty(), "frame must not be dirty")do { if (!(!IsSubtreeDirty())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "frame must not be dirty", "!IsSubtreeDirty()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2020); MOZ_PretendNoReturn(); } } while (0); |
| 2021 | if (aWM.IsCentralBaseline()) { |
| 2022 | return (BSize(aWM) + GetLogicalUsedMargin(aWM).BEnd(aWM)) / 2; |
| 2023 | } |
| 2024 | // Baseline for inverted line content is the top (block-start) margin edge, |
| 2025 | // as the frame is in effect "flipped" for alignment purposes. |
| 2026 | if (aWM.IsLineInverted()) { |
| 2027 | const auto marginStart = margin.BStart(aWM); |
| 2028 | return aBaselineGroup == BaselineSharingGroup::First |
| 2029 | ? -marginStart |
| 2030 | : BSize(aWM) + marginStart; |
| 2031 | } |
| 2032 | // Otherwise, the bottom margin edge, per CSS2.1's definition of the |
| 2033 | // 'baseline' value of 'vertical-align'. |
| 2034 | const auto marginEnd = margin.BEnd(aWM); |
| 2035 | return aBaselineGroup == BaselineSharingGroup::First ? BSize(aWM) + marginEnd |
| 2036 | : -marginEnd; |
| 2037 | } |
| 2038 | |
| 2039 | nscoord nsIFrame::GetLogicalBaseline(WritingMode aWM) const { |
| 2040 | return GetLogicalBaseline(aWM, GetDefaultBaselineSharingGroup(), |
| 2041 | BaselineExportContext::LineLayout); |
| 2042 | } |
| 2043 | |
| 2044 | nscoord nsIFrame::GetLogicalBaseline( |
| 2045 | WritingMode aWM, BaselineSharingGroup aBaselineGroup, |
| 2046 | BaselineExportContext aExportContext) const { |
| 2047 | const auto result = |
| 2048 | GetNaturalBaselineBOffset(aWM, aBaselineGroup, aExportContext) |
| 2049 | .valueOrFrom([this, aWM, aBaselineGroup]() { |
| 2050 | return SynthesizeFallbackBaseline(aWM, aBaselineGroup); |
| 2051 | }); |
| 2052 | if (aBaselineGroup == BaselineSharingGroup::Last) { |
| 2053 | return BSize(aWM) - result; |
| 2054 | } |
| 2055 | return result; |
| 2056 | } |
| 2057 | |
| 2058 | const nsFrameList& nsIFrame::GetChildList(ChildListID aListID) const { |
| 2059 | if (IsAbsoluteContainer() && aListID == GetAbsoluteListID()) { |
| 2060 | return GetAbsoluteContainingBlock()->GetChildList(); |
| 2061 | } else { |
| 2062 | return nsFrameList::EmptyList(); |
| 2063 | } |
| 2064 | } |
| 2065 | |
| 2066 | void nsIFrame::GetChildLists(nsTArray<ChildList>* aLists) const { |
| 2067 | if (IsAbsoluteContainer()) { |
| 2068 | const nsFrameList& absoluteList = |
| 2069 | GetAbsoluteContainingBlock()->GetChildList(); |
| 2070 | absoluteList.AppendIfNonempty(aLists, GetAbsoluteListID()); |
| 2071 | } |
| 2072 | } |
| 2073 | |
| 2074 | AutoTArray<nsIFrame::ChildList, 4> nsIFrame::CrossDocChildLists() { |
| 2075 | AutoTArray<ChildList, 4> childLists; |
| 2076 | nsSubDocumentFrame* subdocumentFrame = do_QueryFrame(this); |
| 2077 | if (subdocumentFrame) { |
| 2078 | // Descend into the subdocument |
| 2079 | nsIFrame* root = subdocumentFrame->GetSubdocumentRootFrame(); |
| 2080 | if (root) { |
| 2081 | childLists.EmplaceBack( |
| 2082 | nsFrameList(root, nsLayoutUtils::GetLastSibling(root)), |
| 2083 | FrameChildListID::Principal); |
| 2084 | } |
| 2085 | } |
| 2086 | |
| 2087 | GetChildLists(&childLists); |
| 2088 | return childLists; |
| 2089 | } |
| 2090 | |
| 2091 | nsIFrame::CaretBlockAxisMetrics nsIFrame::GetCaretBlockAxisMetrics( |
| 2092 | mozilla::WritingMode aWM, const nsFontMetrics& aFM) const { |
| 2093 | // Note(dshin): Ultimately, this does something highly similar (But still |
| 2094 | // different) to `nsLayoutUtils::GetFirstLinePosition`. |
| 2095 | const auto baseline = GetCaretBaseline(); |
| 2096 | nscoord ascent = 0, descent = 0; |
| 2097 | ascent = aFM.MaxAscent(); |
| 2098 | descent = aFM.MaxDescent(); |
| 2099 | const nscoord height = ascent + descent; |
| 2100 | if (aWM.IsVertical() && aWM.IsLineInverted()) { |
| 2101 | return CaretBlockAxisMetrics{.mOffset = baseline - descent, |
| 2102 | .mExtent = height}; |
| 2103 | } |
| 2104 | return CaretBlockAxisMetrics{.mOffset = baseline - ascent, .mExtent = height}; |
| 2105 | } |
| 2106 | |
| 2107 | const nsAtom* nsIFrame::ComputePageValue() const { |
| 2108 | const nsAtom* value = nsGkAtoms::_empty; |
| 2109 | const nsIFrame* frame = this; |
| 2110 | // Find what CSS page name value this frame's subtree has, if any. |
| 2111 | // Starting with this frame, check if a page name other than auto is present, |
| 2112 | // and record it if so. Then, if the current frame is a container frame, find |
| 2113 | // the first non-placeholder child and repeat. |
| 2114 | // This will find the most deeply nested first in-flow child of this frame's |
| 2115 | // subtree, and return its page name (with auto resolved if applicable, and |
| 2116 | // subtrees with no page-names returning the empty atom rather than null). |
| 2117 | do { |
| 2118 | if (const nsAtom* maybePageName = frame->GetStylePageName()) { |
| 2119 | value = maybePageName; |
| 2120 | } |
| 2121 | // Get the next frame to read from. |
| 2122 | const nsIFrame* firstNonPlaceholderFrame = nullptr; |
| 2123 | // If this is a container frame, inspect its in-flow children. |
| 2124 | if (const nsContainerFrame* containerFrame = do_QueryFrame(frame)) { |
| 2125 | for (const nsIFrame* childFrame : containerFrame->PrincipalChildList()) { |
| 2126 | if (!childFrame->IsPlaceholderFrame()) { |
| 2127 | firstNonPlaceholderFrame = childFrame; |
| 2128 | break; |
| 2129 | } |
| 2130 | } |
| 2131 | } |
| 2132 | frame = firstNonPlaceholderFrame; |
| 2133 | } while (frame); |
| 2134 | return value; |
| 2135 | } |
| 2136 | |
| 2137 | Visibility nsIFrame::GetVisibility() const { |
| 2138 | if (!HasAnyStateBits(NS_FRAME_VISIBILITY_IS_TRACKED)) { |
| 2139 | return Visibility::Untracked; |
| 2140 | } |
| 2141 | |
| 2142 | bool isSet = false; |
| 2143 | uint32_t visibleCount = GetProperty(VisibilityStateProperty(), &isSet); |
| 2144 | |
| 2145 | MOZ_ASSERT(isSet,do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSet)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(isSet))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("isSet" " (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2147); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isSet" ") (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")"); do { *((volatile int*)__null) = 2147; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2146 | "Should have a VisibilityStateProperty value "do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSet)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(isSet))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("isSet" " (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2147); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isSet" ") (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")"); do { *((volatile int*)__null) = 2147; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2147 | "if NS_FRAME_VISIBILITY_IS_TRACKED is set")do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSet)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(isSet))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("isSet" " (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2147); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isSet" ") (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")"); do { *((volatile int*)__null) = 2147; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2148 | |
| 2149 | return visibleCount > 0 ? Visibility::ApproximatelyVisible |
| 2150 | : Visibility::ApproximatelyNonVisible; |
| 2151 | } |
| 2152 | |
| 2153 | void nsIFrame::UpdateVisibilitySynchronously() { |
| 2154 | mozilla::PresShell* presShell = PresShell(); |
| 2155 | if (!presShell) { |
| 2156 | return; |
| 2157 | } |
| 2158 | |
| 2159 | if (presShell->AssumeAllFramesVisible()) { |
| 2160 | presShell->EnsureFrameInApproximatelyVisibleList(this); |
| 2161 | return; |
| 2162 | } |
| 2163 | |
| 2164 | bool visible = StyleVisibility()->IsVisible(); |
| 2165 | nsIFrame* f = GetParent(); |
| 2166 | nsRect rect = GetRectRelativeToSelf(); |
| 2167 | nsIFrame* rectFrame = this; |
| 2168 | while (f && visible) { |
| 2169 | nsIScrollableFrame* sf = do_QueryFrame(f); |
| 2170 | if (sf) { |
| 2171 | nsRect transformedRect = |
| 2172 | nsLayoutUtils::TransformFrameRectToAncestor(rectFrame, rect, f); |
| 2173 | if (!sf->IsRectNearlyVisible(transformedRect)) { |
| 2174 | visible = false; |
| 2175 | break; |
| 2176 | } |
| 2177 | |
| 2178 | // In this code we're trying to synchronously update *approximate* |
| 2179 | // visibility. (In the future we may update precise visibility here as |
| 2180 | // well, which is why the method name does not contain 'approximate'.) The |
| 2181 | // IsRectNearlyVisible() check above tells us that the rect we're checking |
| 2182 | // is approximately visible within the scrollframe, but we still need to |
| 2183 | // ensure that, even if it was scrolled into view, it'd be visible when we |
| 2184 | // consider the rest of the document. To do that, we move transformedRect |
| 2185 | // to be contained in the scrollport as best we can (it might not fit) to |
| 2186 | // pretend that it was scrolled into view. |
| 2187 | rect = transformedRect.MoveInsideAndClamp(sf->GetScrollPortRect()); |
| 2188 | rectFrame = f; |
| 2189 | } |
| 2190 | nsIFrame* parent = f->GetParent(); |
| 2191 | if (!parent) { |
| 2192 | parent = nsLayoutUtils::GetCrossDocParentFrameInProcess(f); |
| 2193 | if (parent && parent->PresContext()->IsChrome()) { |
| 2194 | break; |
| 2195 | } |
| 2196 | } |
| 2197 | f = parent; |
| 2198 | } |
| 2199 | |
| 2200 | if (visible) { |
| 2201 | presShell->EnsureFrameInApproximatelyVisibleList(this); |
| 2202 | } else { |
| 2203 | presShell->RemoveFrameFromApproximatelyVisibleList(this); |
| 2204 | } |
| 2205 | } |
| 2206 | |
| 2207 | void nsIFrame::EnableVisibilityTracking() { |
| 2208 | if (HasAnyStateBits(NS_FRAME_VISIBILITY_IS_TRACKED)) { |
| 2209 | return; // Nothing to do. |
| 2210 | } |
| 2211 | |
| 2212 | MOZ_ASSERT(!HasProperty(VisibilityStateProperty()),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasProperty(VisibilityStateProperty()))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!HasProperty(VisibilityStateProperty())))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!HasProperty(VisibilityStateProperty())" " (" "Shouldn't have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is not set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2214); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasProperty(VisibilityStateProperty())" ") (" "Shouldn't have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is not set" ")"); do { *((volatile int*)__null) = 2214; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2213 | "Shouldn't have a VisibilityStateProperty value "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasProperty(VisibilityStateProperty()))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!HasProperty(VisibilityStateProperty())))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!HasProperty(VisibilityStateProperty())" " (" "Shouldn't have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is not set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2214); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasProperty(VisibilityStateProperty())" ") (" "Shouldn't have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is not set" ")"); do { *((volatile int*)__null) = 2214; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2214 | "if NS_FRAME_VISIBILITY_IS_TRACKED is not set")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasProperty(VisibilityStateProperty()))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!HasProperty(VisibilityStateProperty())))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!HasProperty(VisibilityStateProperty())" " (" "Shouldn't have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is not set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2214); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasProperty(VisibilityStateProperty())" ") (" "Shouldn't have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is not set" ")"); do { *((volatile int*)__null) = 2214; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2215 | |
| 2216 | // Add the state bit so we know to track visibility for this frame, and |
| 2217 | // initialize the frame property. |
| 2218 | AddStateBits(NS_FRAME_VISIBILITY_IS_TRACKED); |
| 2219 | SetProperty(VisibilityStateProperty(), 0); |
| 2220 | |
| 2221 | mozilla::PresShell* presShell = PresShell(); |
| 2222 | if (!presShell) { |
| 2223 | return; |
| 2224 | } |
| 2225 | |
| 2226 | // Schedule a visibility update. This method will virtually always be called |
| 2227 | // when layout has changed anyway, so it's very unlikely that any additional |
| 2228 | // visibility updates will be triggered by this, but this way we guarantee |
| 2229 | // that if this frame is currently visible we'll eventually find out. |
| 2230 | presShell->ScheduleApproximateFrameVisibilityUpdateSoon(); |
| 2231 | } |
| 2232 | |
| 2233 | void nsIFrame::DisableVisibilityTracking() { |
| 2234 | if (!HasAnyStateBits(NS_FRAME_VISIBILITY_IS_TRACKED)) { |
| 2235 | return; // Nothing to do. |
| 2236 | } |
| 2237 | |
| 2238 | bool isSet = false; |
| 2239 | uint32_t visibleCount = TakeProperty(VisibilityStateProperty(), &isSet); |
| 2240 | |
| 2241 | MOZ_ASSERT(isSet,do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSet)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(isSet))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("isSet" " (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2243); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isSet" ") (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")"); do { *((volatile int*)__null) = 2243; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2242 | "Should have a VisibilityStateProperty value "do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSet)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(isSet))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("isSet" " (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2243); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isSet" ") (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")"); do { *((volatile int*)__null) = 2243; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2243 | "if NS_FRAME_VISIBILITY_IS_TRACKED is set")do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSet)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(isSet))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("isSet" " (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2243); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isSet" ") (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")"); do { *((volatile int*)__null) = 2243; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2244 | |
| 2245 | RemoveStateBits(NS_FRAME_VISIBILITY_IS_TRACKED); |
| 2246 | |
| 2247 | if (visibleCount == 0) { |
| 2248 | return; // We were nonvisible. |
| 2249 | } |
| 2250 | |
| 2251 | // We were visible, so send an OnVisibilityChange() notification. |
| 2252 | OnVisibilityChange(Visibility::ApproximatelyNonVisible); |
| 2253 | } |
| 2254 | |
| 2255 | void nsIFrame::DecApproximateVisibleCount( |
| 2256 | const Maybe<OnNonvisible>& aNonvisibleAction |
| 2257 | /* = Nothing() */) { |
| 2258 | MOZ_ASSERT(HasAnyStateBits(NS_FRAME_VISIBILITY_IS_TRACKED))do { static_assert( mozilla::detail::AssertionConditionType< decltype(HasAnyStateBits(NS_FRAME_VISIBILITY_IS_TRACKED))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(HasAnyStateBits(NS_FRAME_VISIBILITY_IS_TRACKED)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("HasAnyStateBits(NS_FRAME_VISIBILITY_IS_TRACKED)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2258); AnnotateMozCrashReason("MOZ_ASSERT" "(" "HasAnyStateBits(NS_FRAME_VISIBILITY_IS_TRACKED)" ")"); do { *((volatile int*)__null) = 2258; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2259 | |
| 2260 | bool isSet = false; |
| 2261 | uint32_t visibleCount = GetProperty(VisibilityStateProperty(), &isSet); |
| 2262 | |
| 2263 | MOZ_ASSERT(isSet,do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSet)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(isSet))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("isSet" " (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2265); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isSet" ") (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")"); do { *((volatile int*)__null) = 2265; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2264 | "Should have a VisibilityStateProperty value "do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSet)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(isSet))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("isSet" " (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2265); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isSet" ") (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")"); do { *((volatile int*)__null) = 2265; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2265 | "if NS_FRAME_VISIBILITY_IS_TRACKED is set")do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSet)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(isSet))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("isSet" " (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2265); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isSet" ") (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")"); do { *((volatile int*)__null) = 2265; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2266 | MOZ_ASSERT(visibleCount > 0,do { static_assert( mozilla::detail::AssertionConditionType< decltype(visibleCount > 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(visibleCount > 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("visibleCount > 0" " (" "Frame is already nonvisible and we're " "decrementing its visible count?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2268); AnnotateMozCrashReason("MOZ_ASSERT" "(" "visibleCount > 0" ") (" "Frame is already nonvisible and we're " "decrementing its visible count?" ")"); do { *((volatile int*)__null) = 2268; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2267 | "Frame is already nonvisible and we're "do { static_assert( mozilla::detail::AssertionConditionType< decltype(visibleCount > 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(visibleCount > 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("visibleCount > 0" " (" "Frame is already nonvisible and we're " "decrementing its visible count?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2268); AnnotateMozCrashReason("MOZ_ASSERT" "(" "visibleCount > 0" ") (" "Frame is already nonvisible and we're " "decrementing its visible count?" ")"); do { *((volatile int*)__null) = 2268; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2268 | "decrementing its visible count?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(visibleCount > 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(visibleCount > 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("visibleCount > 0" " (" "Frame is already nonvisible and we're " "decrementing its visible count?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2268); AnnotateMozCrashReason("MOZ_ASSERT" "(" "visibleCount > 0" ") (" "Frame is already nonvisible and we're " "decrementing its visible count?" ")"); do { *((volatile int*)__null) = 2268; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2269 | |
| 2270 | visibleCount--; |
| 2271 | SetProperty(VisibilityStateProperty(), visibleCount); |
| 2272 | if (visibleCount > 0) { |
| 2273 | return; |
| 2274 | } |
| 2275 | |
| 2276 | // We just became nonvisible, so send an OnVisibilityChange() notification. |
| 2277 | OnVisibilityChange(Visibility::ApproximatelyNonVisible, aNonvisibleAction); |
| 2278 | } |
| 2279 | |
| 2280 | void nsIFrame::IncApproximateVisibleCount() { |
| 2281 | MOZ_ASSERT(HasAnyStateBits(NS_FRAME_VISIBILITY_IS_TRACKED))do { static_assert( mozilla::detail::AssertionConditionType< decltype(HasAnyStateBits(NS_FRAME_VISIBILITY_IS_TRACKED))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(HasAnyStateBits(NS_FRAME_VISIBILITY_IS_TRACKED)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("HasAnyStateBits(NS_FRAME_VISIBILITY_IS_TRACKED)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2281); AnnotateMozCrashReason("MOZ_ASSERT" "(" "HasAnyStateBits(NS_FRAME_VISIBILITY_IS_TRACKED)" ")"); do { *((volatile int*)__null) = 2281; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2282 | |
| 2283 | bool isSet = false; |
| 2284 | uint32_t visibleCount = GetProperty(VisibilityStateProperty(), &isSet); |
| 2285 | |
| 2286 | MOZ_ASSERT(isSet,do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSet)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(isSet))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("isSet" " (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2288); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isSet" ") (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")"); do { *((volatile int*)__null) = 2288; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2287 | "Should have a VisibilityStateProperty value "do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSet)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(isSet))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("isSet" " (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2288); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isSet" ") (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")"); do { *((volatile int*)__null) = 2288; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2288 | "if NS_FRAME_VISIBILITY_IS_TRACKED is set")do { static_assert( mozilla::detail::AssertionConditionType< decltype(isSet)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(isSet))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("isSet" " (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2288); AnnotateMozCrashReason("MOZ_ASSERT" "(" "isSet" ") (" "Should have a VisibilityStateProperty value " "if NS_FRAME_VISIBILITY_IS_TRACKED is set" ")"); do { *((volatile int*)__null) = 2288; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2289 | |
| 2290 | visibleCount++; |
| 2291 | SetProperty(VisibilityStateProperty(), visibleCount); |
| 2292 | if (visibleCount > 1) { |
| 2293 | return; |
| 2294 | } |
| 2295 | |
| 2296 | // We just became visible, so send an OnVisibilityChange() notification. |
| 2297 | OnVisibilityChange(Visibility::ApproximatelyVisible); |
| 2298 | } |
| 2299 | |
| 2300 | void nsIFrame::OnVisibilityChange(Visibility aNewVisibility, |
| 2301 | const Maybe<OnNonvisible>& aNonvisibleAction |
| 2302 | /* = Nothing() */) { |
| 2303 | // XXX(seth): In bug 1218990 we'll implement visibility tracking for CSS |
| 2304 | // images here. |
| 2305 | } |
| 2306 | |
| 2307 | static nsIFrame* GetActiveSelectionFrame(nsPresContext* aPresContext, |
| 2308 | nsIFrame* aFrame) { |
| 2309 | nsIContent* capturingContent = PresShell::GetCapturingContent(); |
| 2310 | if (capturingContent) { |
| 2311 | nsIFrame* activeFrame = aPresContext->GetPrimaryFrameFor(capturingContent); |
| 2312 | return activeFrame ? activeFrame : aFrame; |
| 2313 | } |
| 2314 | |
| 2315 | return aFrame; |
| 2316 | } |
| 2317 | |
| 2318 | int16_t nsIFrame::DetermineDisplaySelection() { |
| 2319 | int16_t selType = nsISelectionController::SELECTION_OFF; |
| 2320 | |
| 2321 | nsCOMPtr<nsISelectionController> selCon; |
| 2322 | nsresult result = |
| 2323 | GetSelectionController(PresContext(), getter_AddRefs(selCon)); |
| 2324 | if (NS_SUCCEEDED(result)((bool)(__builtin_expect(!!(!NS_FAILED_impl(result)), 1))) && selCon) { |
| 2325 | result = selCon->GetDisplaySelection(&selType); |
| 2326 | if (NS_SUCCEEDED(result)((bool)(__builtin_expect(!!(!NS_FAILED_impl(result)), 1))) && |
| 2327 | (selType != nsISelectionController::SELECTION_OFF)) { |
| 2328 | // Check whether style allows selection. |
| 2329 | if (!IsSelectable(nullptr)) { |
| 2330 | selType = nsISelectionController::SELECTION_OFF; |
| 2331 | } |
| 2332 | } |
| 2333 | } |
| 2334 | return selType; |
| 2335 | } |
| 2336 | |
| 2337 | static Element* FindElementAncestorForMozSelection(nsIContent* aContent) { |
| 2338 | NS_ENSURE_TRUE(aContent, nullptr)do { if ((__builtin_expect(!!(!(aContent)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aContent" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2338); return nullptr; } } while (false); |
| 2339 | while (aContent && aContent->IsInNativeAnonymousSubtree()) { |
| 2340 | aContent = aContent->GetClosestNativeAnonymousSubtreeRootParentOrHost(); |
| 2341 | } |
| 2342 | NS_ASSERTION(aContent, "aContent isn't in non-anonymous tree?")do { if (!(aContent)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "aContent isn't in non-anonymous tree?" , "aContent", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2342); MOZ_PretendNoReturn(); } } while (0); |
| 2343 | return aContent ? aContent->GetAsElementOrParentElement() : nullptr; |
| 2344 | } |
| 2345 | |
| 2346 | already_AddRefed<ComputedStyle> nsIFrame::ComputeSelectionStyle( |
| 2347 | int16_t aSelectionStatus) const { |
| 2348 | // Just bail out if not a selection-status that ::selection applies to. |
| 2349 | if (aSelectionStatus != nsISelectionController::SELECTION_ON && |
| 2350 | aSelectionStatus != nsISelectionController::SELECTION_DISABLED) { |
| 2351 | return nullptr; |
| 2352 | } |
| 2353 | Element* element = FindElementAncestorForMozSelection(GetContent()); |
| 2354 | if (!element) { |
| 2355 | return nullptr; |
| 2356 | } |
| 2357 | RefPtr<ComputedStyle> pseudoStyle = |
| 2358 | PresContext()->StyleSet()->ProbePseudoElementStyle( |
| 2359 | *element, PseudoStyleType::selection, nullptr, Style()); |
| 2360 | if (!pseudoStyle) { |
| 2361 | return nullptr; |
| 2362 | } |
| 2363 | // When in high-contrast mode, the style system ends up ignoring the color |
| 2364 | // declarations, which means that the ::selection style becomes the inherited |
| 2365 | // color, and default background. That's no good. |
| 2366 | // When force-color-adjust is set to none allow using the color styles, |
| 2367 | // as they will not be replaced. |
| 2368 | if (PresContext()->ForcingColors() && |
| 2369 | pseudoStyle->StyleText()->mForcedColorAdjust != |
| 2370 | StyleForcedColorAdjust::None) { |
| 2371 | return nullptr; |
| 2372 | } |
| 2373 | return do_AddRef(pseudoStyle); |
| 2374 | } |
| 2375 | |
| 2376 | already_AddRefed<ComputedStyle> nsIFrame::ComputeHighlightSelectionStyle( |
| 2377 | nsAtom* aHighlightName) { |
| 2378 | Element* element = FindElementAncestorForMozSelection(GetContent()); |
| 2379 | if (!element) { |
| 2380 | return nullptr; |
| 2381 | } |
| 2382 | return PresContext()->StyleSet()->ProbePseudoElementStyle( |
| 2383 | *element, PseudoStyleType::highlight, aHighlightName, Style()); |
| 2384 | } |
| 2385 | |
| 2386 | template <typename SizeOrMaxSize> |
| 2387 | static inline bool IsIntrinsicKeyword(const SizeOrMaxSize& aSize) { |
| 2388 | // All keywords other than auto/none/-moz-available depend on intrinsic sizes. |
| 2389 | return aSize.IsMaxContent() || aSize.IsMinContent() || aSize.IsFitContent() || |
| 2390 | aSize.IsFitContentFunction(); |
| 2391 | } |
| 2392 | |
| 2393 | bool nsIFrame::CanBeDynamicReflowRoot() const { |
| 2394 | const auto& display = *StyleDisplay(); |
| 2395 | if (IsLineParticipant() || display.mDisplay.IsRuby() || |
| 2396 | display.IsInnerTableStyle() || |
| 2397 | display.DisplayInside() == StyleDisplayInside::Table) { |
| 2398 | // We have a display type where 'width' and 'height' don't actually set the |
| 2399 | // width or height (i.e., the size depends on content). |
| 2400 | MOZ_ASSERT(!HasAnyStateBits(NS_FRAME_DYNAMIC_REFLOW_ROOT),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasAnyStateBits(NS_FRAME_DYNAMIC_REFLOW_ROOT))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!HasAnyStateBits(NS_FRAME_DYNAMIC_REFLOW_ROOT)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("!HasAnyStateBits(NS_FRAME_DYNAMIC_REFLOW_ROOT)" " (" "should not have dynamic reflow root bit" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2401); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasAnyStateBits(NS_FRAME_DYNAMIC_REFLOW_ROOT)" ") (" "should not have dynamic reflow root bit" ")"); do { * ((volatile int*)__null) = 2401; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) |
| 2401 | "should not have dynamic reflow root bit")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasAnyStateBits(NS_FRAME_DYNAMIC_REFLOW_ROOT))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!HasAnyStateBits(NS_FRAME_DYNAMIC_REFLOW_ROOT)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("!HasAnyStateBits(NS_FRAME_DYNAMIC_REFLOW_ROOT)" " (" "should not have dynamic reflow root bit" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2401); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasAnyStateBits(NS_FRAME_DYNAMIC_REFLOW_ROOT)" ") (" "should not have dynamic reflow root bit" ")"); do { * ((volatile int*)__null) = 2401; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 2402 | return false; |
| 2403 | } |
| 2404 | |
| 2405 | // In general, frames that have contain:layout+size can be reflow roots. |
| 2406 | // (One exception: table-wrapper frames don't work well as reflow roots, |
| 2407 | // because their inner-table ReflowInput init path tries to reuse & deref |
| 2408 | // the wrapper's containing block's reflow input, which may be null if we |
| 2409 | // initiate reflow from the table-wrapper itself.) |
| 2410 | // |
| 2411 | // Changes to `contain` force frame reconstructions, so we used to use |
| 2412 | // NS_FRAME_REFLOW_ROOT, this bit could be set for the whole lifetime of |
| 2413 | // this frame. But after the support of `content-visibility: auto` which |
| 2414 | // is with contain layout + size when it's not relevant to user, and only |
| 2415 | // with contain layout when it is relevant. The frame does not reconstruct |
| 2416 | // when the relevancy changes. So we use NS_FRAME_DYNAMIC_REFLOW_ROOT instead. |
| 2417 | // |
| 2418 | // We place it above the pref check on purpose, to make sure it works for |
| 2419 | // containment even with the pref disabled. |
| 2420 | if (display.IsContainLayout() && GetContainSizeAxes().IsBoth()) { |
| 2421 | return true; |
| 2422 | } |
| 2423 | |
| 2424 | if (!StaticPrefs::layout_dynamic_reflow_roots_enabled()) { |
| 2425 | return false; |
| 2426 | } |
| 2427 | |
| 2428 | // We can't serve as a dynamic reflow root if our used 'width' and 'height' |
| 2429 | // might be influenced by content. |
| 2430 | // |
| 2431 | // FIXME: For display:block, we should probably optimize inline-size: auto. |
| 2432 | // FIXME: Other flex and grid cases? |
| 2433 | const auto& pos = *StylePosition(); |
| 2434 | const auto& width = pos.mWidth; |
| 2435 | const auto& height = pos.mHeight; |
| 2436 | if (!width.IsLengthPercentage() || width.HasPercent() || |
| 2437 | !height.IsLengthPercentage() || height.HasPercent() || |
| 2438 | IsIntrinsicKeyword(pos.mMinWidth) || IsIntrinsicKeyword(pos.mMaxWidth) || |
| 2439 | IsIntrinsicKeyword(pos.mMinHeight) || |
| 2440 | IsIntrinsicKeyword(pos.mMaxHeight) || |
| 2441 | ((pos.mMinWidth.IsAuto() || pos.mMinHeight.IsAuto()) && |
| 2442 | IsFlexOrGridItem())) { |
| 2443 | return false; |
| 2444 | } |
| 2445 | |
| 2446 | // If our flex-basis is 'auto', it'll defer to 'width' (or 'height') which |
| 2447 | // we've already checked. Otherwise, it preempts them, so we need to |
| 2448 | // perform the same "could-this-value-be-influenced-by-content" checks that |
| 2449 | // we performed for 'width' and 'height' above. |
| 2450 | if (IsFlexItem()) { |
| 2451 | const auto& flexBasis = pos.mFlexBasis; |
| 2452 | if (!flexBasis.IsAuto()) { |
| 2453 | if (!flexBasis.IsSize() || !flexBasis.AsSize().IsLengthPercentage() || |
| 2454 | flexBasis.AsSize().HasPercent()) { |
| 2455 | return false; |
| 2456 | } |
| 2457 | } |
| 2458 | } |
| 2459 | |
| 2460 | if (!IsFixedPosContainingBlock()) { |
| 2461 | // We can't treat this frame as a reflow root, since dynamic changes |
| 2462 | // to absolutely-positioned frames inside of it require that we |
| 2463 | // reflow the placeholder before we reflow the absolutely positioned |
| 2464 | // frame. |
| 2465 | // FIXME: Alternatively, we could sort the reflow roots in |
| 2466 | // PresShell::ProcessReflowCommands by depth in the tree, from |
| 2467 | // deepest to least deep. However, for performance (FIXME) we |
| 2468 | // should really be sorting them in the opposite order! |
| 2469 | return false; |
| 2470 | } |
| 2471 | |
| 2472 | // If we participate in a container's block reflow context, or margins |
| 2473 | // can collapse through us, we can't be a dynamic reflow root. |
| 2474 | if (IsBlockFrameOrSubclass() && |
| 2475 | !HasAllStateBits(NS_BLOCK_FLOAT_MGR | NS_BLOCK_MARGIN_ROOT)) { |
| 2476 | return false; |
| 2477 | } |
| 2478 | |
| 2479 | // Subgrids are never reflow roots, but 'contain:layout/paint' prevents |
| 2480 | // creating a subgrid in the first place. |
| 2481 | if (pos.mGridTemplateColumns.IsSubgrid() || |
| 2482 | pos.mGridTemplateRows.IsSubgrid()) { |
| 2483 | // NOTE: we could check that 'display' of our parent's primary frame is |
| 2484 | // '[inline-]grid' here but that's probably not worth it in practice. |
| 2485 | if (!display.IsContainLayout() && !display.IsContainPaint()) { |
| 2486 | return false; |
| 2487 | } |
| 2488 | } |
| 2489 | |
| 2490 | // If we are split, we can't be a dynamic reflow root. Our reflow status may |
| 2491 | // change after reflow, and our parent is responsible to create or delete our |
| 2492 | // next-in-flow. |
| 2493 | if (GetPrevContinuation() || GetNextContinuation()) { |
| 2494 | return false; |
| 2495 | } |
| 2496 | |
| 2497 | return true; |
| 2498 | } |
| 2499 | |
| 2500 | /******************************************************** |
| 2501 | * Refreshes each content's frame |
| 2502 | *********************************************************/ |
| 2503 | |
| 2504 | void nsIFrame::DisplayOutlineUnconditional(nsDisplayListBuilder* aBuilder, |
| 2505 | const nsDisplayListSet& aLists) { |
| 2506 | // Per https://drafts.csswg.org/css-tables-3/#global-style-overrides: |
| 2507 | // "All css properties of table-column and table-column-group boxes are |
| 2508 | // ignored, except when explicitly specified by this specification." |
| 2509 | // CSS outlines fall into this category, so we skip them on these boxes. |
| 2510 | MOZ_ASSERT(!IsTableColGroupFrame() && !IsTableColFrame())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!IsTableColGroupFrame() && !IsTableColFrame( ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!IsTableColGroupFrame() && !IsTableColFrame( )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!IsTableColGroupFrame() && !IsTableColFrame()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2510); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!IsTableColGroupFrame() && !IsTableColFrame()" ")"); do { *((volatile int*)__null) = 2510; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2511 | const auto& outline = *StyleOutline(); |
| 2512 | |
| 2513 | if (!outline.ShouldPaintOutline()) { |
| 2514 | return; |
| 2515 | } |
| 2516 | |
| 2517 | // Outlines are painted by the table wrapper frame. |
| 2518 | if (IsTableFrame()) { |
| 2519 | return; |
| 2520 | } |
| 2521 | |
| 2522 | if (HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT) && |
| 2523 | ScrollableOverflowRect().IsEmpty()) { |
| 2524 | // Skip parts of IB-splits with an empty overflow rect, see bug 434301. |
| 2525 | // We may still want to fix some of the overflow area calculations over in |
| 2526 | // that bug. |
| 2527 | return; |
| 2528 | } |
| 2529 | |
| 2530 | // We don't display outline-style: auto on themed frames that have their own |
| 2531 | // focus indicators. |
| 2532 | if (outline.mOutlineStyle.IsAuto()) { |
| 2533 | auto* disp = StyleDisplay(); |
| 2534 | if (IsThemed(disp) && PresContext()->Theme()->ThemeDrawsFocusForWidget( |
| 2535 | this, disp->EffectiveAppearance())) { |
| 2536 | return; |
| 2537 | } |
| 2538 | } |
| 2539 | |
| 2540 | aLists.Outlines()->AppendNewToTop<nsDisplayOutline>(aBuilder, this); |
| 2541 | } |
| 2542 | |
| 2543 | void nsIFrame::DisplayOutline(nsDisplayListBuilder* aBuilder, |
| 2544 | const nsDisplayListSet& aLists) { |
| 2545 | if (!IsVisibleForPainting()) return; |
| 2546 | |
| 2547 | DisplayOutlineUnconditional(aBuilder, aLists); |
| 2548 | } |
| 2549 | |
| 2550 | void nsIFrame::DisplayInsetBoxShadowUnconditional( |
| 2551 | nsDisplayListBuilder* aBuilder, nsDisplayList* aList) { |
| 2552 | // XXXbz should box-shadow for rows/rowgroups/columns/colgroups get painted |
| 2553 | // just because we're visible? Or should it depend on the cell visibility |
| 2554 | // when we're not the whole table? |
| 2555 | const auto* effects = StyleEffects(); |
| 2556 | if (effects->HasBoxShadowWithInset(true)) { |
| 2557 | aList->AppendNewToTop<nsDisplayBoxShadowInner>(aBuilder, this); |
| 2558 | } |
| 2559 | } |
| 2560 | |
| 2561 | void nsIFrame::DisplayInsetBoxShadow(nsDisplayListBuilder* aBuilder, |
| 2562 | nsDisplayList* aList) { |
| 2563 | if (!IsVisibleForPainting()) return; |
| 2564 | |
| 2565 | DisplayInsetBoxShadowUnconditional(aBuilder, aList); |
| 2566 | } |
| 2567 | |
| 2568 | void nsIFrame::DisplayOutsetBoxShadowUnconditional( |
| 2569 | nsDisplayListBuilder* aBuilder, nsDisplayList* aList) { |
| 2570 | // XXXbz should box-shadow for rows/rowgroups/columns/colgroups get painted |
| 2571 | // just because we're visible? Or should it depend on the cell visibility |
| 2572 | // when we're not the whole table? |
| 2573 | const auto* effects = StyleEffects(); |
| 2574 | if (effects->HasBoxShadowWithInset(false)) { |
| 2575 | aList->AppendNewToTop<nsDisplayBoxShadowOuter>(aBuilder, this); |
| 2576 | } |
| 2577 | } |
| 2578 | |
| 2579 | void nsIFrame::DisplayOutsetBoxShadow(nsDisplayListBuilder* aBuilder, |
| 2580 | nsDisplayList* aList) { |
| 2581 | if (!IsVisibleForPainting()) return; |
| 2582 | |
| 2583 | DisplayOutsetBoxShadowUnconditional(aBuilder, aList); |
| 2584 | } |
| 2585 | |
| 2586 | void nsIFrame::DisplayCaret(nsDisplayListBuilder* aBuilder, |
| 2587 | nsDisplayList* aList) { |
| 2588 | if (!IsVisibleForPainting()) return; |
| 2589 | |
| 2590 | aList->AppendNewToTop<nsDisplayCaret>(aBuilder, this); |
| 2591 | } |
| 2592 | |
| 2593 | nscolor nsIFrame::GetCaretColorAt(int32_t aOffset) { |
| 2594 | return nsLayoutUtils::GetColor(this, &nsStyleUI::mCaretColor); |
| 2595 | } |
| 2596 | |
| 2597 | auto nsIFrame::ComputeShouldPaintBackground() const -> ShouldPaintBackground { |
| 2598 | nsPresContext* pc = PresContext(); |
| 2599 | ShouldPaintBackground settings{pc->GetBackgroundColorDraw(), |
| 2600 | pc->GetBackgroundImageDraw()}; |
| 2601 | if (settings.mColor && settings.mImage) { |
| 2602 | return settings; |
| 2603 | } |
| 2604 | |
| 2605 | if (StyleVisibility()->mPrintColorAdjust == StylePrintColorAdjust::Exact) { |
| 2606 | return {true, true}; |
| 2607 | } |
| 2608 | |
| 2609 | return settings; |
| 2610 | } |
| 2611 | |
| 2612 | bool nsIFrame::DisplayBackgroundUnconditional(nsDisplayListBuilder* aBuilder, |
| 2613 | const nsDisplayListSet& aLists) { |
| 2614 | if (aBuilder->IsForEventDelivery() && !aBuilder->HitTestIsForVisibility()) { |
| 2615 | // For hit-testing, we generally just need a light-weight data structure |
| 2616 | // like nsDisplayEventReceiver. But if the hit-testing is for visibility, |
| 2617 | // then we need to know the opaque region in order to determine whether to |
| 2618 | // stop or not. |
| 2619 | aLists.BorderBackground()->AppendNewToTop<nsDisplayEventReceiver>(aBuilder, |
| 2620 | this); |
| 2621 | return false; |
| 2622 | } |
| 2623 | |
| 2624 | const AppendedBackgroundType result = |
| 2625 | nsDisplayBackgroundImage::AppendBackgroundItemsToTop( |
| 2626 | aBuilder, this, |
| 2627 | GetRectRelativeToSelf() + aBuilder->ToReferenceFrame(this), |
| 2628 | aLists.BorderBackground()); |
| 2629 | |
| 2630 | if (result == AppendedBackgroundType::None) { |
| 2631 | aBuilder->BuildCompositorHitTestInfoIfNeeded(this, |
| 2632 | aLists.BorderBackground()); |
| 2633 | } |
| 2634 | |
| 2635 | return result == AppendedBackgroundType::ThemedBackground; |
| 2636 | } |
| 2637 | |
| 2638 | void nsIFrame::DisplayBorderBackgroundOutline(nsDisplayListBuilder* aBuilder, |
| 2639 | const nsDisplayListSet& aLists) { |
| 2640 | // The visibility check belongs here since child elements have the |
| 2641 | // opportunity to override the visibility property and display even if |
| 2642 | // their parent is hidden. |
| 2643 | if (!IsVisibleForPainting()) { |
| 2644 | return; |
| 2645 | } |
| 2646 | |
| 2647 | DisplayOutsetBoxShadowUnconditional(aBuilder, aLists.BorderBackground()); |
| 2648 | |
| 2649 | bool bgIsThemed = DisplayBackgroundUnconditional(aBuilder, aLists); |
| 2650 | DisplayInsetBoxShadowUnconditional(aBuilder, aLists.BorderBackground()); |
| 2651 | |
| 2652 | // If there's a themed background, we should not create a border item. |
| 2653 | // It won't be rendered. |
| 2654 | // Don't paint borders for tables here, since they paint them in a different |
| 2655 | // order. |
| 2656 | if (!bgIsThemed && StyleBorder()->HasBorder() && !IsTableFrame()) { |
| 2657 | aLists.BorderBackground()->AppendNewToTop<nsDisplayBorder>(aBuilder, this); |
| 2658 | } |
| 2659 | |
| 2660 | DisplayOutlineUnconditional(aBuilder, aLists); |
| 2661 | } |
| 2662 | |
| 2663 | inline static bool IsSVGContentWithCSSClip(const nsIFrame* aFrame) { |
| 2664 | // The CSS spec says that the 'clip' property only applies to absolutely |
| 2665 | // positioned elements, whereas the SVG spec says that it applies to SVG |
| 2666 | // elements regardless of the value of the 'position' property. Here we obey |
| 2667 | // the CSS spec for outer-<svg> (since that's what we generally do), but |
| 2668 | // obey the SVG spec for other SVG elements to which 'clip' applies. |
| 2669 | return aFrame->HasAnyStateBits(NS_FRAME_SVG_LAYOUT) && |
| 2670 | aFrame->GetContent()->IsAnyOfSVGElements(nsGkAtoms::svg, |
| 2671 | nsGkAtoms::foreignObject); |
| 2672 | } |
| 2673 | |
| 2674 | Maybe<nsRect> nsIFrame::GetClipPropClipRect(const nsStyleDisplay* aDisp, |
| 2675 | const nsStyleEffects* aEffects, |
| 2676 | const nsSize& aSize) const { |
| 2677 | if (aEffects->mClip.IsAuto() || |
| 2678 | !(aDisp->IsAbsolutelyPositioned(this) || IsSVGContentWithCSSClip(this))) { |
| 2679 | return Nothing(); |
| 2680 | } |
| 2681 | |
| 2682 | auto& clipRect = aEffects->mClip.AsRect(); |
| 2683 | nsRect rect = clipRect.ToLayoutRect(); |
| 2684 | if (MOZ_LIKELY(StyleBorder()->mBoxDecorationBreak ==(__builtin_expect(!!(StyleBorder()->mBoxDecorationBreak == StyleBoxDecorationBreak::Slice), 1)) |
| 2685 | StyleBoxDecorationBreak::Slice)(__builtin_expect(!!(StyleBorder()->mBoxDecorationBreak == StyleBoxDecorationBreak::Slice), 1))) { |
| 2686 | // The clip applies to the joined boxes so it's relative the first |
| 2687 | // continuation. |
| 2688 | nscoord y = 0; |
| 2689 | for (nsIFrame* f = GetPrevContinuation(); f; f = f->GetPrevContinuation()) { |
| 2690 | y += f->GetRect().height; |
| 2691 | } |
| 2692 | rect.MoveBy(nsPoint(0, -y)); |
| 2693 | } |
| 2694 | |
| 2695 | if (clipRect.right.IsAuto()) { |
| 2696 | rect.width = aSize.width - rect.x; |
| 2697 | } |
| 2698 | if (clipRect.bottom.IsAuto()) { |
| 2699 | rect.height = aSize.height - rect.y; |
| 2700 | } |
| 2701 | return Some(rect); |
| 2702 | } |
| 2703 | |
| 2704 | /** |
| 2705 | * If the CSS 'overflow' property applies to this frame, and is not |
| 2706 | * handled by constructing a dedicated nsHTML/XULScrollFrame, set up clipping |
| 2707 | * for that overflow in aBuilder->ClipState() to clip all containing-block |
| 2708 | * descendants. |
| 2709 | */ |
| 2710 | static void ApplyOverflowClipping( |
| 2711 | nsDisplayListBuilder* aBuilder, const nsIFrame* aFrame, |
| 2712 | nsIFrame::PhysicalAxes aClipAxes, |
| 2713 | DisplayListClipState::AutoClipMultiple& aClipState) { |
| 2714 | // Only 'clip' is handled here (and 'hidden' for table frames, and any |
| 2715 | // non-'visible' value for blocks in a paginated context). |
| 2716 | // We allow 'clip' to apply to any kind of frame. This is required by |
| 2717 | // comboboxes which make their display text (an inline frame) have clipping. |
| 2718 | MOZ_ASSERT(aClipAxes != nsIFrame::PhysicalAxes::None)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aClipAxes != nsIFrame::PhysicalAxes::None)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aClipAxes != nsIFrame::PhysicalAxes::None))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aClipAxes != nsIFrame::PhysicalAxes::None" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2718); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aClipAxes != nsIFrame::PhysicalAxes::None" ")"); do { *((volatile int*)__null) = 2718; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2719 | MOZ_ASSERT(aFrame->ShouldApplyOverflowClipping(aFrame->StyleDisplay()) ==do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->ShouldApplyOverflowClipping(aFrame->StyleDisplay ()) == aClipAxes)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aFrame->ShouldApplyOverflowClipping (aFrame->StyleDisplay()) == aClipAxes))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame->ShouldApplyOverflowClipping(aFrame->StyleDisplay()) == aClipAxes" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2720); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->ShouldApplyOverflowClipping(aFrame->StyleDisplay()) == aClipAxes" ")"); do { *((volatile int*)__null) = 2720; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2720 | aClipAxes)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->ShouldApplyOverflowClipping(aFrame->StyleDisplay ()) == aClipAxes)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aFrame->ShouldApplyOverflowClipping (aFrame->StyleDisplay()) == aClipAxes))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame->ShouldApplyOverflowClipping(aFrame->StyleDisplay()) == aClipAxes" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2720); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->ShouldApplyOverflowClipping(aFrame->StyleDisplay()) == aClipAxes" ")"); do { *((volatile int*)__null) = 2720; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2721 | |
| 2722 | nsRect clipRect; |
| 2723 | bool haveRadii = false; |
| 2724 | nscoord radii[8]; |
| 2725 | auto* disp = aFrame->StyleDisplay(); |
| 2726 | // Only deflate the padding if we clip to the content-box in that axis. |
| 2727 | auto wm = aFrame->GetWritingMode(); |
| 2728 | bool cbH = (wm.IsVertical() ? disp->mOverflowClipBoxBlock |
| 2729 | : disp->mOverflowClipBoxInline) == |
| 2730 | StyleOverflowClipBox::ContentBox; |
| 2731 | bool cbV = (wm.IsVertical() ? disp->mOverflowClipBoxInline |
| 2732 | : disp->mOverflowClipBoxBlock) == |
| 2733 | StyleOverflowClipBox::ContentBox; |
| 2734 | |
| 2735 | nsMargin boxMargin = -aFrame->GetUsedPadding(); |
| 2736 | if (!cbH) { |
| 2737 | boxMargin.left = boxMargin.right = nscoord(0); |
| 2738 | } |
| 2739 | if (!cbV) { |
| 2740 | boxMargin.top = boxMargin.bottom = nscoord(0); |
| 2741 | } |
| 2742 | |
| 2743 | auto clipMargin = aFrame->OverflowClipMargin(aClipAxes); |
| 2744 | |
| 2745 | boxMargin -= aFrame->GetUsedBorder(); |
| 2746 | boxMargin += nsMargin(clipMargin.height, clipMargin.width, clipMargin.height, |
| 2747 | clipMargin.width); |
| 2748 | boxMargin.ApplySkipSides(aFrame->GetSkipSides()); |
| 2749 | |
| 2750 | nsRect rect(nsPoint(0, 0), aFrame->GetSize()); |
| 2751 | rect.Inflate(boxMargin); |
| 2752 | if (MOZ_UNLIKELY(!(aClipAxes & nsIFrame::PhysicalAxes::Horizontal))(__builtin_expect(!!(!(aClipAxes & nsIFrame::PhysicalAxes ::Horizontal)), 0))) { |
| 2753 | // NOTE(mats) We shouldn't be clipping at all in this dimension really, |
| 2754 | // but clipping in just one axis isn't supported by our GFX APIs so we |
| 2755 | // clip to our visual overflow rect instead. |
| 2756 | nsRect o = aFrame->InkOverflowRect(); |
| 2757 | rect.x = o.x; |
| 2758 | rect.width = o.width; |
| 2759 | } |
| 2760 | if (MOZ_UNLIKELY(!(aClipAxes & nsIFrame::PhysicalAxes::Vertical))(__builtin_expect(!!(!(aClipAxes & nsIFrame::PhysicalAxes ::Vertical)), 0))) { |
| 2761 | // See the note above. |
| 2762 | nsRect o = aFrame->InkOverflowRect(); |
| 2763 | rect.y = o.y; |
| 2764 | rect.height = o.height; |
| 2765 | } |
| 2766 | clipRect = rect + aBuilder->ToReferenceFrame(aFrame); |
| 2767 | haveRadii = aFrame->GetBoxBorderRadii(radii, boxMargin); |
| 2768 | aClipState.ClipContainingBlockDescendantsExtra(clipRect, |
| 2769 | haveRadii ? radii : nullptr); |
| 2770 | } |
| 2771 | |
| 2772 | nsSize nsIFrame::OverflowClipMargin(PhysicalAxes aClipAxes) const { |
| 2773 | nsSize result; |
| 2774 | if (aClipAxes == PhysicalAxes::None) { |
| 2775 | return result; |
| 2776 | } |
| 2777 | const auto& margin = StyleMargin()->mOverflowClipMargin; |
| 2778 | if (margin.IsZero()) { |
| 2779 | return result; |
| 2780 | } |
| 2781 | nscoord marginAu = margin.ToAppUnits(); |
| 2782 | if (aClipAxes & PhysicalAxes::Horizontal) { |
| 2783 | result.width = marginAu; |
| 2784 | } |
| 2785 | if (aClipAxes & PhysicalAxes::Vertical) { |
| 2786 | result.height = marginAu; |
| 2787 | } |
| 2788 | return result; |
| 2789 | } |
| 2790 | |
| 2791 | /** |
| 2792 | * Returns whether a display item that gets created with the builder's current |
| 2793 | * state will have a scrolled clip, i.e. a clip that is scrolled by a scroll |
| 2794 | * frame which does not move the item itself. |
| 2795 | */ |
| 2796 | static bool BuilderHasScrolledClip(nsDisplayListBuilder* aBuilder) { |
| 2797 | const DisplayItemClipChain* currentClip = |
| 2798 | aBuilder->ClipState().GetCurrentCombinedClipChain(aBuilder); |
| 2799 | if (!currentClip) { |
| 2800 | return false; |
| 2801 | } |
| 2802 | |
| 2803 | const ActiveScrolledRoot* currentClipASR = currentClip->mASR; |
| 2804 | const ActiveScrolledRoot* currentASR = aBuilder->CurrentActiveScrolledRoot(); |
| 2805 | return ActiveScrolledRoot::PickDescendant(currentClipASR, currentASR) != |
| 2806 | currentASR; |
| 2807 | } |
| 2808 | |
| 2809 | class AutoSaveRestoreContainsBlendMode { |
| 2810 | nsDisplayListBuilder& mBuilder; |
| 2811 | bool mSavedContainsBlendMode; |
| 2812 | |
| 2813 | public: |
| 2814 | explicit AutoSaveRestoreContainsBlendMode(nsDisplayListBuilder& aBuilder) |
| 2815 | : mBuilder(aBuilder), |
| 2816 | mSavedContainsBlendMode(aBuilder.ContainsBlendMode()) {} |
| 2817 | |
| 2818 | ~AutoSaveRestoreContainsBlendMode() { |
| 2819 | mBuilder.SetContainsBlendMode(mSavedContainsBlendMode); |
| 2820 | } |
| 2821 | }; |
| 2822 | |
| 2823 | static bool IsFrameOrAncestorApzAware(nsIFrame* aFrame) { |
| 2824 | nsIContent* node = aFrame->GetContent(); |
| 2825 | if (!node) { |
| 2826 | return false; |
| 2827 | } |
| 2828 | |
| 2829 | do { |
| 2830 | if (node->IsNodeApzAware()) { |
| 2831 | return true; |
| 2832 | } |
| 2833 | nsIContent* shadowRoot = node->GetShadowRoot(); |
| 2834 | if (shadowRoot && shadowRoot->IsNodeApzAware()) { |
| 2835 | return true; |
| 2836 | } |
| 2837 | |
| 2838 | // Even if the node owning aFrame doesn't have apz-aware event listeners |
| 2839 | // itself, its shadow root or display: contents ancestors (which have no |
| 2840 | // frames) might, so we need to account for them too. |
| 2841 | } while ((node = node->GetFlattenedTreeParent()) && node->IsElement() && |
| 2842 | node->AsElement()->IsDisplayContents()); |
| 2843 | |
| 2844 | return false; |
| 2845 | } |
| 2846 | |
| 2847 | static void CheckForApzAwareEventHandlers(nsDisplayListBuilder* aBuilder, |
| 2848 | nsIFrame* aFrame) { |
| 2849 | if (aBuilder->GetAncestorHasApzAwareEventHandler()) { |
| 2850 | return; |
| 2851 | } |
| 2852 | |
| 2853 | if (IsFrameOrAncestorApzAware(aFrame)) { |
| 2854 | aBuilder->SetAncestorHasApzAwareEventHandler(true); |
| 2855 | } |
| 2856 | } |
| 2857 | |
| 2858 | static void UpdateCurrentHitTestInfo(nsDisplayListBuilder* aBuilder, |
| 2859 | nsIFrame* aFrame) { |
| 2860 | if (!aBuilder->BuildCompositorHitTestInfo()) { |
| 2861 | // Compositor hit test info is not used. |
| 2862 | return; |
| 2863 | } |
| 2864 | |
| 2865 | CheckForApzAwareEventHandlers(aBuilder, aFrame); |
| 2866 | |
| 2867 | const CompositorHitTestInfo info = aFrame->GetCompositorHitTestInfo(aBuilder); |
| 2868 | aBuilder->SetCompositorHitTestInfo(info); |
| 2869 | } |
| 2870 | |
| 2871 | /** |
| 2872 | * True if aDescendant participates the context aAncestor participating. |
| 2873 | */ |
| 2874 | static bool FrameParticipatesIn3DContext(nsIFrame* aAncestor, |
| 2875 | nsIFrame* aDescendant) { |
| 2876 | MOZ_ASSERT(aAncestor != aDescendant)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aAncestor != aDescendant)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aAncestor != aDescendant))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aAncestor != aDescendant" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2876); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aAncestor != aDescendant" ")"); do { *((volatile int*)__null) = 2876; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2877 | MOZ_ASSERT(aAncestor->GetContent() != aDescendant->GetContent())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aAncestor->GetContent() != aDescendant->GetContent ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aAncestor->GetContent() != aDescendant->GetContent ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aAncestor->GetContent() != aDescendant->GetContent()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2877); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aAncestor->GetContent() != aDescendant->GetContent()" ")"); do { *((volatile int*)__null) = 2877; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2878 | MOZ_ASSERT(aAncestor->Extend3DContext())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aAncestor->Extend3DContext())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aAncestor->Extend3DContext ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aAncestor->Extend3DContext()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2878); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aAncestor->Extend3DContext()" ")"); do { *((volatile int*)__null) = 2878; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2879 | |
| 2880 | nsIFrame* ancestor = aAncestor->FirstContinuation(); |
| 2881 | MOZ_ASSERT(ancestor->IsPrimaryFrame())do { static_assert( mozilla::detail::AssertionConditionType< decltype(ancestor->IsPrimaryFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(ancestor->IsPrimaryFrame( )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("ancestor->IsPrimaryFrame()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2881); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ancestor->IsPrimaryFrame()" ")"); do { *((volatile int*)__null) = 2881; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2882 | |
| 2883 | nsIFrame* frame; |
| 2884 | for (frame = aDescendant->GetClosestFlattenedTreeAncestorPrimaryFrame(); |
| 2885 | frame && ancestor != frame; |
| 2886 | frame = frame->GetClosestFlattenedTreeAncestorPrimaryFrame()) { |
| 2887 | if (!frame->Extend3DContext()) { |
| 2888 | return false; |
| 2889 | } |
| 2890 | } |
| 2891 | |
| 2892 | MOZ_ASSERT(frame == ancestor)do { static_assert( mozilla::detail::AssertionConditionType< decltype(frame == ancestor)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(frame == ancestor))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("frame == ancestor" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 2892); AnnotateMozCrashReason("MOZ_ASSERT" "(" "frame == ancestor" ")"); do { *((volatile int*)__null) = 2892; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2893 | return true; |
| 2894 | } |
| 2895 | |
| 2896 | static bool ItemParticipatesIn3DContext(nsIFrame* aAncestor, |
| 2897 | nsDisplayItem* aItem) { |
| 2898 | auto type = aItem->GetType(); |
| 2899 | const bool isContainer = type == DisplayItemType::TYPE_WRAP_LIST || |
| 2900 | type == DisplayItemType::TYPE_CONTAINER; |
| 2901 | |
| 2902 | if (isContainer && aItem->GetChildren()->Length() == 1) { |
| 2903 | // If the wraplist has only one child item, use the type of that item. |
| 2904 | type = aItem->GetChildren()->GetBottom()->GetType(); |
| 2905 | } |
| 2906 | |
| 2907 | if (type != DisplayItemType::TYPE_TRANSFORM && |
| 2908 | type != DisplayItemType::TYPE_PERSPECTIVE) { |
| 2909 | return false; |
| 2910 | } |
| 2911 | nsIFrame* transformFrame = aItem->Frame(); |
| 2912 | if (aAncestor->GetContent() == transformFrame->GetContent()) { |
| 2913 | return true; |
| 2914 | } |
| 2915 | return FrameParticipatesIn3DContext(aAncestor, transformFrame); |
| 2916 | } |
| 2917 | |
| 2918 | static void WrapSeparatorTransform(nsDisplayListBuilder* aBuilder, |
| 2919 | nsIFrame* aFrame, |
| 2920 | nsDisplayList* aNonParticipants, |
| 2921 | nsDisplayList* aParticipants, int aIndex, |
| 2922 | nsDisplayItem** aSeparator) { |
| 2923 | if (aNonParticipants->IsEmpty()) { |
| 2924 | return; |
| 2925 | } |
| 2926 | |
| 2927 | nsDisplayTransform* item = MakeDisplayItemWithIndex<nsDisplayTransform>( |
| 2928 | aBuilder, aFrame, aIndex, aNonParticipants, aBuilder->GetVisibleRect()); |
| 2929 | |
| 2930 | if (*aSeparator == nullptr && item) { |
| 2931 | *aSeparator = item; |
| 2932 | } |
| 2933 | |
| 2934 | aParticipants->AppendToTop(item); |
| 2935 | } |
| 2936 | |
| 2937 | // Try to compute a clip rect to bound the contents of the mask item |
| 2938 | // that will be built for |aMaskedFrame|. If we're not able to compute |
| 2939 | // one, return an empty Maybe. |
| 2940 | // The returned clip rect, if there is one, is relative to |aMaskedFrame|. |
| 2941 | static Maybe<nsRect> ComputeClipForMaskItem( |
| 2942 | nsDisplayListBuilder* aBuilder, nsIFrame* aMaskedFrame, |
| 2943 | const SVGUtils::MaskUsage& aMaskUsage) { |
| 2944 | const nsStyleSVGReset* svgReset = aMaskedFrame->StyleSVGReset(); |
| 2945 | |
| 2946 | nsPoint offsetToUserSpace = |
| 2947 | nsLayoutUtils::ComputeOffsetToUserSpace(aBuilder, aMaskedFrame); |
| 2948 | int32_t devPixelRatio = aMaskedFrame->PresContext()->AppUnitsPerDevPixel(); |
| 2949 | gfxPoint devPixelOffsetToUserSpace = |
| 2950 | nsLayoutUtils::PointToGfxPoint(offsetToUserSpace, devPixelRatio); |
| 2951 | CSSToLayoutDeviceScale cssToDevScale = |
| 2952 | aMaskedFrame->PresContext()->CSSToDevPixelScale(); |
| 2953 | |
| 2954 | nsPoint toReferenceFrame; |
| 2955 | aBuilder->FindReferenceFrameFor(aMaskedFrame, &toReferenceFrame); |
| 2956 | |
| 2957 | Maybe<gfxRect> combinedClip; |
| 2958 | if (aMaskUsage.ShouldApplyBasicShapeOrPath()) { |
| 2959 | Maybe<Rect> result = |
| 2960 | CSSClipPathInstance::GetBoundingRectForBasicShapeOrPathClip( |
| 2961 | aMaskedFrame, svgReset->mClipPath); |
| 2962 | if (result) { |
| 2963 | combinedClip = Some(ThebesRect(*result)); |
| 2964 | } |
| 2965 | } else if (aMaskUsage.ShouldApplyClipPath()) { |
| 2966 | gfxRect result = SVGUtils::GetBBox( |
| 2967 | aMaskedFrame, |
| 2968 | SVGUtils::eBBoxIncludeClipped | SVGUtils::eBBoxIncludeFill | |
| 2969 | SVGUtils::eBBoxIncludeMarkers | SVGUtils::eBBoxIncludeStroke | |
| 2970 | SVGUtils::eDoNotClipToBBoxOfContentInsideClipPath); |
| 2971 | combinedClip = Some( |
| 2972 | ThebesRect((CSSRect::FromUnknownRect(ToRect(result)) * cssToDevScale) |
| 2973 | .ToUnknownRect())); |
| 2974 | } else { |
| 2975 | // The code for this case is adapted from ComputeMaskGeometry(). |
| 2976 | |
| 2977 | nsRect borderArea(toReferenceFrame, aMaskedFrame->GetSize()); |
| 2978 | borderArea -= offsetToUserSpace; |
| 2979 | |
| 2980 | // Use an infinite dirty rect to pass into nsCSSRendering:: |
| 2981 | // GetImageLayerClip() because we don't have an actual dirty rect to |
| 2982 | // pass in. This is fine because the only time GetImageLayerClip() will |
| 2983 | // not intersect the incoming dirty rect with something is in the "NoClip" |
| 2984 | // case, and we handle that specially. |
| 2985 | nsRect dirtyRect(nscoord_MIN(-nscoord((1 << 30) - 1)) / 2, nscoord_MIN(-nscoord((1 << 30) - 1)) / 2, nscoord_MAXnscoord((1 << 30) - 1), |
| 2986 | nscoord_MAXnscoord((1 << 30) - 1)); |
| 2987 | |
| 2988 | nsIFrame* firstFrame = |
| 2989 | nsLayoutUtils::FirstContinuationOrIBSplitSibling(aMaskedFrame); |
| 2990 | nsTArray<SVGMaskFrame*> maskFrames; |
| 2991 | // XXX check return value? |
| 2992 | SVGObserverUtils::GetAndObserveMasks(firstFrame, &maskFrames); |
| 2993 | |
| 2994 | for (uint32_t i = 0; i < maskFrames.Length(); ++i) { |
| 2995 | gfxRect clipArea; |
| 2996 | if (maskFrames[i]) { |
| 2997 | clipArea = maskFrames[i]->GetMaskArea(aMaskedFrame); |
| 2998 | clipArea = ThebesRect( |
| 2999 | (CSSRect::FromUnknownRect(ToRect(clipArea)) * cssToDevScale) |
| 3000 | .ToUnknownRect()); |
| 3001 | } else { |
| 3002 | const auto& layer = svgReset->mMask.mLayers[i]; |
| 3003 | if (layer.mClip == StyleGeometryBox::NoClip) { |
| 3004 | return Nothing(); |
| 3005 | } |
| 3006 | |
| 3007 | nsCSSRendering::ImageLayerClipState clipState; |
| 3008 | nsCSSRendering::GetImageLayerClip( |
| 3009 | layer, aMaskedFrame, *aMaskedFrame->StyleBorder(), borderArea, |
| 3010 | dirtyRect, false /* aWillPaintBorder */, devPixelRatio, &clipState); |
| 3011 | clipArea = clipState.mDirtyRectInDevPx; |
| 3012 | } |
| 3013 | combinedClip = UnionMaybeRects(combinedClip, Some(clipArea)); |
| 3014 | } |
| 3015 | } |
| 3016 | if (combinedClip) { |
| 3017 | if (combinedClip->IsEmpty()) { |
| 3018 | // *clipForMask might be empty if all mask references are not resolvable |
| 3019 | // or the size of them are empty. We still need to create a transparent |
| 3020 | // mask before bug 1276834 fixed, so don't clip ctx by an empty rectangle |
| 3021 | // for for now. |
| 3022 | return Nothing(); |
| 3023 | } |
| 3024 | |
| 3025 | // Convert to user space. |
| 3026 | *combinedClip += devPixelOffsetToUserSpace; |
| 3027 | |
| 3028 | // Round the clip out. In FrameLayerBuilder we round clips to nearest |
| 3029 | // pixels, and if we have a really thin clip here, that can cause the |
| 3030 | // clip to become empty if we didn't round out here. |
| 3031 | // The rounding happens in coordinates that are relative to the reference |
| 3032 | // frame, which matches what FrameLayerBuilder does. |
| 3033 | combinedClip->RoundOut(); |
| 3034 | |
| 3035 | // Convert to app units. |
| 3036 | nsRect result = |
| 3037 | nsLayoutUtils::RoundGfxRectToAppRect(*combinedClip, devPixelRatio); |
| 3038 | |
| 3039 | // The resulting clip is relative to the reference frame, but the caller |
| 3040 | // expects it to be relative to the masked frame, so adjust it. |
| 3041 | result -= toReferenceFrame; |
| 3042 | return Some(result); |
| 3043 | } |
| 3044 | return Nothing(); |
| 3045 | } |
| 3046 | |
| 3047 | struct AutoCheckBuilder { |
| 3048 | explicit AutoCheckBuilder(nsDisplayListBuilder* aBuilder) |
| 3049 | : mBuilder(aBuilder) { |
| 3050 | aBuilder->Check(); |
| 3051 | } |
| 3052 | |
| 3053 | ~AutoCheckBuilder() { mBuilder->Check(); } |
| 3054 | |
| 3055 | nsDisplayListBuilder* mBuilder; |
| 3056 | }; |
| 3057 | |
| 3058 | /** |
| 3059 | * Tries to reuse a top-level stacking context item from the previous paint. |
| 3060 | * Returns true if an item was reused, otherwise false. |
| 3061 | */ |
| 3062 | bool TryToReuseStackingContextItem(nsDisplayListBuilder* aBuilder, |
| 3063 | nsDisplayList* aList, nsIFrame* aFrame) { |
| 3064 | if (!aBuilder->IsForPainting() || !aBuilder->IsPartialUpdate() || |
| 3065 | aBuilder->InInvalidSubtree()) { |
| 3066 | return false; |
| 3067 | } |
| 3068 | |
| 3069 | if (aFrame->IsFrameModified() || aFrame->HasModifiedDescendants()) { |
| 3070 | return false; |
| 3071 | } |
| 3072 | |
| 3073 | auto& items = aFrame->DisplayItems(); |
| 3074 | auto* res = std::find_if( |
| 3075 | items.begin(), items.end(), |
| 3076 | [](nsDisplayItem* aItem) { return aItem->IsPreProcessed(); }); |
| 3077 | |
| 3078 | if (res == items.end()) { |
| 3079 | return false; |
| 3080 | } |
| 3081 | |
| 3082 | nsDisplayItem* container = *res; |
| 3083 | MOZ_ASSERT(container->Frame() == aFrame)do { static_assert( mozilla::detail::AssertionConditionType< decltype(container->Frame() == aFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(container->Frame() == aFrame ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "container->Frame() == aFrame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 3083); AnnotateMozCrashReason("MOZ_ASSERT" "(" "container->Frame() == aFrame" ")"); do { *((volatile int*)__null) = 3083; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3084 | DL_LOGD("RDL - Found SC item %p (%s) (frame: %p)", container,do { const ::mozilla::LogModule* moz_real_module = GetLoggerByProcess (); if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "RDL - Found SC item %p (%s) (frame: %p)", container, container->Name(), container->Frame()); } } while (0) |
| 3085 | container->Name(), container->Frame())do { const ::mozilla::LogModule* moz_real_module = GetLoggerByProcess (); if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "RDL - Found SC item %p (%s) (frame: %p)", container, container->Name(), container->Frame()); } } while (0); |
| 3086 | |
| 3087 | aList->AppendToTop(container); |
| 3088 | aBuilder->ReuseDisplayItem(container); |
| 3089 | return true; |
| 3090 | } |
| 3091 | |
| 3092 | void nsIFrame::BuildDisplayListForStackingContext( |
| 3093 | nsDisplayListBuilder* aBuilder, nsDisplayList* aList, |
| 3094 | bool* aCreatedContainerItem) { |
| 3095 | #ifdef DEBUG1 |
| 3096 | DL_LOGV("BuildDisplayListForStackingContext (%p) <", this)do { const ::mozilla::LogModule* moz_real_module = GetLoggerByProcess (); if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "BuildDisplayListForStackingContext (%p) <" , this); } } while (0); |
| 3097 | ScopeExit e( |
| 3098 | [this]() { DL_LOGV("> BuildDisplayListForStackingContext (%p)", this)do { const ::mozilla::LogModule* moz_real_module = GetLoggerByProcess (); if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "> BuildDisplayListForStackingContext (%p)" , this); } } while (0); }); |
| 3099 | #endif |
| 3100 | |
| 3101 | AutoCheckBuilder check(aBuilder); |
| 3102 | |
| 3103 | if (aBuilder->IsReusingStackingContextItems() && |
| 3104 | TryToReuseStackingContextItem(aBuilder, aList, this)) { |
| 3105 | if (aCreatedContainerItem) { |
| 3106 | *aCreatedContainerItem = true; |
| 3107 | } |
| 3108 | return; |
| 3109 | } |
| 3110 | |
| 3111 | if (HasAnyStateBits(NS_FRAME_TOO_DEEP_IN_FRAME_TREE)) { |
| 3112 | return; |
| 3113 | } |
| 3114 | |
| 3115 | const auto& style = *Style(); |
| 3116 | const nsStyleDisplay* disp = style.StyleDisplay(); |
| 3117 | const nsStyleEffects* effects = style.StyleEffects(); |
| 3118 | EffectSet* effectSetForOpacity = |
| 3119 | EffectSet::GetForFrame(this, nsCSSPropertyIDSet::OpacityProperties()); |
| 3120 | // We can stop right away if this is a zero-opacity stacking context and |
| 3121 | // we're painting, and we're not animating opacity. |
| 3122 | bool needHitTestInfo = aBuilder->BuildCompositorHitTestInfo() && |
| 3123 | Style()->PointerEvents() != StylePointerEvents::None; |
| 3124 | bool opacityItemForEventsOnly = false; |
| 3125 | if (effects->IsTransparent() && aBuilder->IsForPainting() && |
| 3126 | !(disp->mWillChange.bits & StyleWillChangeBits::OPACITY) && |
| 3127 | !nsLayoutUtils::HasAnimationOfPropertySet( |
| 3128 | this, nsCSSPropertyIDSet::OpacityProperties(), effectSetForOpacity)) { |
| 3129 | if (needHitTestInfo) { |
| 3130 | opacityItemForEventsOnly = true; |
| 3131 | } else { |
| 3132 | return; |
| 3133 | } |
| 3134 | } |
| 3135 | |
| 3136 | if (aBuilder->IsForPainting() && disp->mWillChange.bits) { |
| 3137 | aBuilder->AddToWillChangeBudget(this, GetSize()); |
| 3138 | } |
| 3139 | |
| 3140 | // For preserves3d, use the dirty rect already installed on the |
| 3141 | // builder, since aDirtyRect maybe distorted for transforms along |
| 3142 | // the chain. |
| 3143 | nsRect visibleRect = aBuilder->GetVisibleRect(); |
| 3144 | nsRect dirtyRect = aBuilder->GetDirtyRect(); |
| 3145 | |
| 3146 | // We build an opacity item if it's not going to be drawn by SVG content. |
| 3147 | // We could in principle skip creating an nsDisplayOpacity item if |
| 3148 | // nsDisplayOpacity::NeedsActiveLayer returns false and usingSVGEffects is |
| 3149 | // true (the nsDisplayFilter/nsDisplayMasksAndClipPaths could handle the |
| 3150 | // opacity). Since SVG has perf issues where we sometimes spend a lot of |
| 3151 | // time creating display list items that might be helpful. We'd need to |
| 3152 | // restore our mechanism to do that (changed in bug 1482403), and we'd |
| 3153 | // need to invalidate the frame if the value that would be return from |
| 3154 | // NeedsActiveLayer was to change, which we don't currently do. |
| 3155 | const bool useOpacity = |
| 3156 | HasVisualOpacity(disp, effects, effectSetForOpacity) && |
| 3157 | !SVGUtils::CanOptimizeOpacity(this); |
| 3158 | |
| 3159 | const bool isTransformed = IsTransformed(); |
| 3160 | const bool hasPerspective = isTransformed && HasPerspective(); |
| 3161 | const bool extend3DContext = |
| 3162 | Extend3DContext(disp, effects, effectSetForOpacity); |
| 3163 | const bool combines3DTransformWithAncestors = |
| 3164 | (extend3DContext || isTransformed) && Combines3DTransformWithAncestors(); |
| 3165 | |
| 3166 | Maybe<nsDisplayListBuilder::AutoPreserves3DContext> autoPreserves3DContext; |
| 3167 | if (extend3DContext && !combines3DTransformWithAncestors) { |
| 3168 | // Start a new preserves3d context to keep informations on |
| 3169 | // nsDisplayListBuilder. |
| 3170 | autoPreserves3DContext.emplace(aBuilder); |
| 3171 | // Save dirty rect on the builder to avoid being distorted for |
| 3172 | // multiple transforms along the chain. |
| 3173 | aBuilder->SavePreserves3DRect(); |
| 3174 | |
| 3175 | // We rebuild everything within preserve-3d and don't try |
| 3176 | // to retain, so override the dirty rect now. |
| 3177 | if (aBuilder->IsRetainingDisplayList()) { |
| 3178 | dirtyRect = visibleRect; |
| 3179 | aBuilder->SetDisablePartialUpdates(true); |
| 3180 | } |
| 3181 | } |
| 3182 | |
| 3183 | const bool useBlendMode = effects->mMixBlendMode != StyleBlend::Normal; |
| 3184 | if (useBlendMode) { |
| 3185 | aBuilder->SetContainsBlendMode(true); |
| 3186 | } |
| 3187 | |
| 3188 | // reset blend mode so we can keep track if this stacking context needs have |
| 3189 | // a nsDisplayBlendContainer. Set the blend mode back when the routine exits |
| 3190 | // so we keep track if the parent stacking context needs a container too. |
| 3191 | AutoSaveRestoreContainsBlendMode autoRestoreBlendMode(*aBuilder); |
| 3192 | aBuilder->SetContainsBlendMode(false); |
| 3193 | |
| 3194 | // NOTE: When changing this condition make sure to tweak nsGfxScrollFrame as |
| 3195 | // well. |
| 3196 | bool usingBackdropFilter = effects->HasBackdropFilters() && |
| 3197 | IsVisibleForPainting() && |
| 3198 | !style.IsRootElementStyle(); |
| 3199 | |
| 3200 | nsRect visibleRectOutsideTransform = visibleRect; |
| 3201 | nsDisplayTransform::PrerenderInfo prerenderInfo; |
| 3202 | bool inTransform = aBuilder->IsInTransform(); |
| 3203 | if (isTransformed) { |
| 3204 | prerenderInfo = nsDisplayTransform::ShouldPrerenderTransformedContent( |
| 3205 | aBuilder, this, &visibleRect); |
| 3206 | |
| 3207 | switch (prerenderInfo.mDecision) { |
| 3208 | case nsDisplayTransform::PrerenderDecision::Full: |
| 3209 | case nsDisplayTransform::PrerenderDecision::Partial: |
| 3210 | dirtyRect = visibleRect; |
| 3211 | break; |
| 3212 | case nsDisplayTransform::PrerenderDecision::No: { |
| 3213 | // If we didn't prerender an animated frame in a preserve-3d context, |
| 3214 | // then we want disable async animations for the rest of the preserve-3d |
| 3215 | // (especially ancestors). |
| 3216 | if ((extend3DContext || combines3DTransformWithAncestors) && |
| 3217 | prerenderInfo.mHasAnimations) { |
| 3218 | aBuilder->SavePreserves3DAllowAsyncAnimation(false); |
| 3219 | } |
| 3220 | |
| 3221 | const nsRect overflow = InkOverflowRectRelativeToSelf(); |
| 3222 | if (overflow.IsEmpty() && !extend3DContext) { |
| 3223 | return; |
| 3224 | } |
| 3225 | |
| 3226 | // If we're in preserve-3d then grab the dirty rect that was given to |
| 3227 | // the root and transform using the combined transform. |
| 3228 | if (combines3DTransformWithAncestors) { |
| 3229 | visibleRect = dirtyRect = aBuilder->GetPreserves3DRect(); |
| 3230 | } |
| 3231 | |
| 3232 | float appPerDev = PresContext()->AppUnitsPerDevPixel(); |
| 3233 | auto transform = nsDisplayTransform::GetResultingTransformMatrix( |
| 3234 | this, nsPoint(), appPerDev, |
| 3235 | nsDisplayTransform::kTransformRectFlags); |
| 3236 | nsRect untransformedDirtyRect; |
| 3237 | if (nsDisplayTransform::UntransformRect(dirtyRect, overflow, transform, |
| 3238 | appPerDev, |
| 3239 | &untransformedDirtyRect)) { |
| 3240 | dirtyRect = untransformedDirtyRect; |
| 3241 | nsDisplayTransform::UntransformRect(visibleRect, overflow, transform, |
| 3242 | appPerDev, &visibleRect); |
| 3243 | } else { |
| 3244 | // This should only happen if the transform is singular, in which case |
| 3245 | // nothing is visible anyway |
| 3246 | dirtyRect.SetEmpty(); |
| 3247 | visibleRect.SetEmpty(); |
| 3248 | } |
| 3249 | } |
| 3250 | } |
| 3251 | inTransform = true; |
| 3252 | } else if (IsFixedPosContainingBlock()) { |
| 3253 | // Restict the building area to the overflow rect for these frames, since |
| 3254 | // RetainedDisplayListBuilder uses it to know if the size of the stacking |
| 3255 | // context changed. |
| 3256 | visibleRect.IntersectRect(visibleRect, InkOverflowRect()); |
| 3257 | dirtyRect.IntersectRect(dirtyRect, InkOverflowRect()); |
| 3258 | } |
| 3259 | |
| 3260 | bool hasOverrideDirtyRect = false; |
| 3261 | // If we're doing a partial build, we're not invalid and we're capable |
| 3262 | // of having an override building rect (stacking context and fixed pos |
| 3263 | // containing block), then we should assume we have one. |
| 3264 | // Either we have an explicit one, or nothing in our subtree changed and |
| 3265 | // we have an implicit empty rect. |
| 3266 | // |
| 3267 | // These conditions should match |CanStoreDisplayListBuildingRect()| in |
| 3268 | // RetainedDisplayListBuilder.cpp |
| 3269 | if (!aBuilder->IsReusingStackingContextItems() && |
| 3270 | aBuilder->IsPartialUpdate() && !aBuilder->InInvalidSubtree() && |
| 3271 | !IsFrameModified() && IsFixedPosContainingBlock() && |
| 3272 | !GetPrevContinuation() && !GetNextContinuation()) { |
| 3273 | dirtyRect = nsRect(); |
| 3274 | if (HasOverrideDirtyRegion()) { |
| 3275 | nsDisplayListBuilder::DisplayListBuildingData* data = |
| 3276 | GetProperty(nsDisplayListBuilder::DisplayListBuildingRect()); |
| 3277 | if (data) { |
| 3278 | dirtyRect = data->mDirtyRect.Intersect(visibleRect); |
| 3279 | hasOverrideDirtyRect = true; |
| 3280 | } |
| 3281 | } |
| 3282 | } |
| 3283 | |
| 3284 | bool usingFilter = effects->HasFilters() && !style.IsRootElementStyle(); |
| 3285 | SVGUtils::MaskUsage maskUsage = SVGUtils::DetermineMaskUsage(this, false); |
| 3286 | bool usingMask = maskUsage.UsingMaskOrClipPath(); |
| 3287 | bool usingSVGEffects = usingFilter || usingMask; |
| 3288 | |
| 3289 | nsRect visibleRectOutsideSVGEffects = visibleRect; |
| 3290 | nsDisplayList hoistedScrollInfoItemsStorage(aBuilder); |
| 3291 | if (usingSVGEffects) { |
| 3292 | dirtyRect = |
| 3293 | SVGIntegrationUtils::GetRequiredSourceForInvalidArea(this, dirtyRect); |
| 3294 | visibleRect = |
| 3295 | SVGIntegrationUtils::GetRequiredSourceForInvalidArea(this, visibleRect); |
| 3296 | aBuilder->EnterSVGEffectsContents(this, &hoistedScrollInfoItemsStorage); |
| 3297 | } |
| 3298 | |
| 3299 | bool useStickyPosition = disp->mPosition == StylePositionProperty::Sticky; |
| 3300 | |
| 3301 | bool useFixedPosition = |
| 3302 | disp->mPosition == StylePositionProperty::Fixed && |
| 3303 | (DisplayPortUtils::IsFixedPosFrameInDisplayPort(this) || |
| 3304 | BuilderHasScrolledClip(aBuilder)); |
| 3305 | |
| 3306 | nsDisplayListBuilder::AutoBuildingDisplayList buildingDisplayList( |
| 3307 | aBuilder, this, visibleRect, dirtyRect, isTransformed); |
| 3308 | |
| 3309 | UpdateCurrentHitTestInfo(aBuilder, this); |
| 3310 | |
| 3311 | // Depending on the effects that are applied to this frame, we can create |
| 3312 | // multiple container display items and wrap them around our contents. |
| 3313 | // This enum lists all the potential container display items, in the order |
| 3314 | // outside to inside. |
| 3315 | enum class ContainerItemType : uint8_t { |
| 3316 | None = 0, |
| 3317 | OwnLayerIfNeeded, |
| 3318 | BlendMode, |
| 3319 | FixedPosition, |
| 3320 | OwnLayerForTransformWithRoundedClip, |
| 3321 | Perspective, |
| 3322 | Transform, |
| 3323 | SeparatorTransforms, |
| 3324 | Opacity, |
| 3325 | Filter, |
| 3326 | BlendContainer |
| 3327 | }; |
| 3328 | |
| 3329 | nsDisplayListBuilder::AutoContainerASRTracker contASRTracker(aBuilder); |
| 3330 | |
| 3331 | auto cssClip = GetClipPropClipRect(disp, effects, GetSize()); |
| 3332 | auto ApplyClipProp = [&](DisplayListClipState::AutoSaveRestore& aClipState) { |
| 3333 | if (!cssClip) { |
| 3334 | return; |
| 3335 | } |
| 3336 | nsPoint offset = aBuilder->GetCurrentFrameOffsetToReferenceFrame(); |
| 3337 | aBuilder->IntersectDirtyRect(*cssClip); |
| 3338 | aBuilder->IntersectVisibleRect(*cssClip); |
| 3339 | aClipState.ClipContentDescendants(*cssClip + offset); |
| 3340 | }; |
| 3341 | |
| 3342 | // The CSS clip property is effectively inside the transform, but outside the |
| 3343 | // filters. So if we're not transformed we can apply it just here for |
| 3344 | // simplicity, instead of on each of the places that handle clipCapturedBy. |
| 3345 | DisplayListClipState::AutoSaveRestore untransformedCssClip(aBuilder); |
| 3346 | if (!isTransformed) { |
| 3347 | ApplyClipProp(untransformedCssClip); |
| 3348 | } |
| 3349 | |
| 3350 | // If there is a current clip, then depending on the container items we |
| 3351 | // create, different things can happen to it. Some container items simply |
| 3352 | // propagate the clip to their children and aren't clipped themselves. |
| 3353 | // But other container items, especially those that establish a different |
| 3354 | // geometry for their contents (e.g. transforms), capture the clip on |
| 3355 | // themselves and unset the clip for their contents. If we create more than |
| 3356 | // one of those container items, the clip will be captured on the outermost |
| 3357 | // one and the inner container items will be unclipped. |
| 3358 | ContainerItemType clipCapturedBy = ContainerItemType::None; |
| 3359 | if (useFixedPosition) { |
| 3360 | clipCapturedBy = ContainerItemType::FixedPosition; |
| 3361 | } else if (isTransformed) { |
| 3362 | const DisplayItemClipChain* currentClip = |
| 3363 | aBuilder->ClipState().GetCurrentCombinedClipChain(aBuilder); |
| 3364 | if ((hasPerspective || extend3DContext) && |
| 3365 | (currentClip && currentClip->HasRoundedCorners())) { |
| 3366 | // If we're creating an nsDisplayTransform item that is going to combine |
| 3367 | // its transform with its children (preserve-3d or perspective), then we |
| 3368 | // can't have an intermediate surface. Mask layers force an intermediate |
| 3369 | // surface, so if we're going to need both then create a separate |
| 3370 | // wrapping layer for the mask. |
| 3371 | clipCapturedBy = ContainerItemType::OwnLayerForTransformWithRoundedClip; |
| 3372 | } else if (hasPerspective) { |
| 3373 | clipCapturedBy = ContainerItemType::Perspective; |
| 3374 | } else { |
| 3375 | clipCapturedBy = ContainerItemType::Transform; |
| 3376 | } |
| 3377 | } else if (usingFilter) { |
| 3378 | clipCapturedBy = ContainerItemType::Filter; |
| 3379 | } |
| 3380 | |
| 3381 | DisplayListClipState::AutoSaveRestore clipState(aBuilder); |
| 3382 | if (clipCapturedBy != ContainerItemType::None) { |
| 3383 | clipState.Clear(); |
| 3384 | } |
| 3385 | |
| 3386 | DisplayListClipState::AutoSaveRestore transformedCssClip(aBuilder); |
| 3387 | if (isTransformed) { |
| 3388 | // FIXME(emilio, bug 1525159): In the case we have a both a transform _and_ |
| 3389 | // filters, this clips the input to the filters as well, which is not |
| 3390 | // correct (clipping by the `clip` property is supposed to happen after |
| 3391 | // applying the filter effects, per [1]. |
| 3392 | // |
| 3393 | // This is not a regression though, since we used to do that anyway before |
| 3394 | // bug 1514384, and even without the transform we get it wrong. |
| 3395 | // |
| 3396 | // [1]: https://drafts.fxtf.org/css-masking/#placement |
| 3397 | ApplyClipProp(transformedCssClip); |
| 3398 | } |
| 3399 | |
| 3400 | nsDisplayListCollection set(aBuilder); |
| 3401 | Maybe<nsRect> clipForMask; |
| 3402 | { |
| 3403 | DisplayListClipState::AutoSaveRestore nestedClipState(aBuilder); |
| 3404 | nsDisplayListBuilder::AutoInTransformSetter inTransformSetter(aBuilder, |
| 3405 | inTransform); |
| 3406 | nsDisplayListBuilder::AutoEnterFilter filterASRSetter(aBuilder, |
| 3407 | usingFilter); |
| 3408 | nsDisplayListBuilder::AutoInEventsOnly inEventsSetter( |
| 3409 | aBuilder, opacityItemForEventsOnly); |
| 3410 | |
| 3411 | // If we have a mask, compute a clip to bound the masked content. |
| 3412 | // This is necessary in case the content moves with an ancestor |
| 3413 | // ASR of the mask. |
| 3414 | // Don't do this if we also have a filter, because then the clip |
| 3415 | // would be applied before the filter, violating |
| 3416 | // https://www.w3.org/TR/filter-effects-1/#placement. |
| 3417 | // Filters are a containing block for fixed and absolute descendants, |
| 3418 | // so the masked content cannot move with an ancestor ASR. |
| 3419 | if (usingMask && !usingFilter) { |
| 3420 | clipForMask = ComputeClipForMaskItem(aBuilder, this, maskUsage); |
| 3421 | if (clipForMask) { |
| 3422 | aBuilder->IntersectDirtyRect(*clipForMask); |
| 3423 | aBuilder->IntersectVisibleRect(*clipForMask); |
| 3424 | nestedClipState.ClipContentDescendants( |
| 3425 | *clipForMask + aBuilder->GetCurrentFrameOffsetToReferenceFrame()); |
| 3426 | } |
| 3427 | } |
| 3428 | |
| 3429 | // extend3DContext also guarantees that applyAbsPosClipping and |
| 3430 | // usingSVGEffects are false We only modify the preserve-3d rect if we are |
| 3431 | // the top of a preserve-3d heirarchy |
| 3432 | if (extend3DContext) { |
| 3433 | // Mark these first so MarkAbsoluteFramesForDisplayList knows if we are |
| 3434 | // going to be forced to descend into frames. |
| 3435 | aBuilder->MarkPreserve3DFramesForDisplayList(this); |
| 3436 | } |
| 3437 | |
| 3438 | aBuilder->AdjustWindowDraggingRegion(this); |
| 3439 | |
| 3440 | MarkAbsoluteFramesForDisplayList(aBuilder); |
| 3441 | aBuilder->Check(); |
| 3442 | BuildDisplayList(aBuilder, set); |
| 3443 | SetBuiltDisplayList(true); |
| 3444 | aBuilder->Check(); |
| 3445 | aBuilder->DisplayCaret(this, set.Outlines()); |
| 3446 | |
| 3447 | // Blend modes are a real pain for retained display lists. We build a blend |
| 3448 | // container item if the built list contains any blend mode items within |
| 3449 | // the current stacking context. This can change without an invalidation |
| 3450 | // to the stacking context frame, or the blend mode frame (e.g. by moving |
| 3451 | // an intermediate frame). |
| 3452 | // When we gain/remove a blend container item, we need to mark this frame |
| 3453 | // as invalid and have the full display list for merging to track |
| 3454 | // the change correctly. |
| 3455 | // It seems really hard to track this in advance, as the bookkeeping |
| 3456 | // required to note which stacking contexts have blend descendants |
| 3457 | // is complex and likely to be buggy. |
| 3458 | // Instead we're doing the sad thing, detecting it afterwards, and just |
| 3459 | // repeating display list building if it changed. |
| 3460 | // We have to repeat building for the entire display list (or at least |
| 3461 | // the outer stacking context), since we need to mark this frame as invalid |
| 3462 | // to remove any existing content that isn't wrapped in the blend container, |
| 3463 | // and then we need to build content infront/behind the blend container |
| 3464 | // to get correct positioning during merging. |
| 3465 | if (aBuilder->ContainsBlendMode() && aBuilder->IsRetainingDisplayList()) { |
| 3466 | if (aBuilder->IsPartialUpdate()) { |
| 3467 | aBuilder->SetPartialBuildFailed(true); |
| 3468 | } else { |
| 3469 | aBuilder->SetDisablePartialUpdates(true); |
| 3470 | } |
| 3471 | } |
| 3472 | } |
| 3473 | |
| 3474 | if (aBuilder->IsBackgroundOnly()) { |
| 3475 | set.BlockBorderBackgrounds()->DeleteAll(aBuilder); |
| 3476 | set.Floats()->DeleteAll(aBuilder); |
| 3477 | set.Content()->DeleteAll(aBuilder); |
| 3478 | set.PositionedDescendants()->DeleteAll(aBuilder); |
| 3479 | set.Outlines()->DeleteAll(aBuilder); |
| 3480 | } |
| 3481 | |
| 3482 | if (hasOverrideDirtyRect && |
| 3483 | StaticPrefs::layout_display_list_show_rebuild_area()) { |
| 3484 | nsDisplaySolidColor* color = MakeDisplayItem<nsDisplaySolidColor>( |
| 3485 | aBuilder, this, |
| 3486 | dirtyRect + aBuilder->GetCurrentFrameOffsetToReferenceFrame(), |
| 3487 | NS_RGBA(255, 0, 0, 64)((nscolor)(((64) << 24) | ((0) << 16) | ((0) << 8) | (255))), false); |
| 3488 | if (color) { |
| 3489 | color->SetOverrideZIndex(INT32_MAX(2147483647)); |
| 3490 | set.PositionedDescendants()->AppendToTop(color); |
| 3491 | } |
| 3492 | } |
| 3493 | |
| 3494 | nsIContent* content = GetContent(); |
| 3495 | if (!content) { |
| 3496 | content = PresContext()->Document()->GetRootElement(); |
| 3497 | } |
| 3498 | |
| 3499 | nsDisplayList resultList(aBuilder); |
| 3500 | set.SerializeWithCorrectZOrder(&resultList, content); |
| 3501 | |
| 3502 | // Get the ASR to use for the container items that we create here. |
| 3503 | const ActiveScrolledRoot* containerItemASR = contASRTracker.GetContainerASR(); |
| 3504 | |
| 3505 | bool createdContainer = false; |
| 3506 | |
| 3507 | // If adding both a nsDisplayBlendContainer and a nsDisplayBlendMode to the |
| 3508 | // same list, the nsDisplayBlendContainer should be added first. This only |
| 3509 | // happens when the element creating this stacking context has mix-blend-mode |
| 3510 | // and also contains a child which has mix-blend-mode. |
| 3511 | // The nsDisplayBlendContainer must be added to the list first, so it does not |
| 3512 | // isolate the containing element blending as well. |
| 3513 | if (aBuilder->ContainsBlendMode()) { |
| 3514 | resultList.AppendToTop(nsDisplayBlendContainer::CreateForMixBlendMode( |
| 3515 | aBuilder, this, &resultList, containerItemASR)); |
| 3516 | createdContainer = true; |
| 3517 | } |
| 3518 | |
| 3519 | if (usingBackdropFilter) { |
| 3520 | nsRect backdropRect = |
| 3521 | GetRectRelativeToSelf() + aBuilder->ToReferenceFrame(this); |
| 3522 | resultList.AppendNewToTop<nsDisplayBackdropFilters>( |
| 3523 | aBuilder, this, &resultList, backdropRect, this); |
| 3524 | createdContainer = true; |
| 3525 | } |
| 3526 | |
| 3527 | // If there are any SVG effects, wrap the list up in an SVG effects item |
| 3528 | // (which also handles CSS group opacity). Note that we create an SVG effects |
| 3529 | // item even if resultList is empty, since a filter can produce graphical |
| 3530 | // output even if the element being filtered wouldn't otherwise do so. |
| 3531 | if (usingSVGEffects) { |
| 3532 | MOZ_ASSERT(usingFilter || usingMask,do { static_assert( mozilla::detail::AssertionConditionType< decltype(usingFilter || usingMask)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(usingFilter || usingMask))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("usingFilter || usingMask" " (" "Beside filter & mask/clip-path, what else effect do we have?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 3533); AnnotateMozCrashReason("MOZ_ASSERT" "(" "usingFilter || usingMask" ") (" "Beside filter & mask/clip-path, what else effect do we have?" ")"); do { *((volatile int*)__null) = 3533; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 3533 | "Beside filter & mask/clip-path, what else effect do we have?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(usingFilter || usingMask)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(usingFilter || usingMask))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("usingFilter || usingMask" " (" "Beside filter & mask/clip-path, what else effect do we have?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 3533); AnnotateMozCrashReason("MOZ_ASSERT" "(" "usingFilter || usingMask" ") (" "Beside filter & mask/clip-path, what else effect do we have?" ")"); do { *((volatile int*)__null) = 3533; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3534 | |
| 3535 | if (clipCapturedBy == ContainerItemType::Filter) { |
| 3536 | clipState.Restore(); |
| 3537 | } |
| 3538 | // Revert to the post-filter dirty rect. |
| 3539 | aBuilder->SetVisibleRect(visibleRectOutsideSVGEffects); |
| 3540 | |
| 3541 | // Skip all filter effects while generating glyph mask. |
| 3542 | if (usingFilter && !aBuilder->IsForGenerateGlyphMask()) { |
| 3543 | /* List now emptied, so add the new list to the top. */ |
| 3544 | resultList.AppendNewToTop<nsDisplayFilters>(aBuilder, this, &resultList, |
| 3545 | this, usingBackdropFilter); |
| 3546 | createdContainer = true; |
| 3547 | } |
| 3548 | |
| 3549 | if (usingMask) { |
| 3550 | // The mask should move with aBuilder->CurrentActiveScrolledRoot(), so |
| 3551 | // that's the ASR we prefer to use for the mask item. However, we can |
| 3552 | // only do this if the mask if clipped with respect to that ASR, because |
| 3553 | // an item always needs to have finite bounds with respect to its ASR. |
| 3554 | // If we weren't able to compute a clip for the mask, we fall back to |
| 3555 | // using containerItemASR, which is the lowest common ancestor clip of |
| 3556 | // the mask's contents. That's not entirely correct, but it satisfies |
| 3557 | // the base requirement of the ASR system (that items have finite bounds |
| 3558 | // wrt. their ASR). |
| 3559 | const ActiveScrolledRoot* maskASR = |
| 3560 | clipForMask.isSome() ? aBuilder->CurrentActiveScrolledRoot() |
| 3561 | : containerItemASR; |
| 3562 | /* List now emptied, so add the new list to the top. */ |
| 3563 | resultList.AppendNewToTop<nsDisplayMasksAndClipPaths>( |
| 3564 | aBuilder, this, &resultList, maskASR, usingBackdropFilter); |
| 3565 | createdContainer = true; |
| 3566 | } |
| 3567 | |
| 3568 | // TODO(miko): We could probably create a wraplist here and avoid creating |
| 3569 | // it later in |BuildDisplayListForChild()|. |
| 3570 | createdContainer = false; |
| 3571 | |
| 3572 | // Also add the hoisted scroll info items. We need those for APZ scrolling |
| 3573 | // because nsDisplayMasksAndClipPaths items can't build active layers. |
| 3574 | aBuilder->ExitSVGEffectsContents(); |
| 3575 | resultList.AppendToTop(&hoistedScrollInfoItemsStorage); |
| 3576 | } |
| 3577 | |
| 3578 | // If the list is non-empty and there is CSS group opacity without SVG |
| 3579 | // effects, wrap it up in an opacity item. |
| 3580 | if (useOpacity) { |
| 3581 | const bool needsActiveOpacityLayer = |
| 3582 | nsDisplayOpacity::NeedsActiveLayer(aBuilder, this); |
| 3583 | resultList.AppendNewToTop<nsDisplayOpacity>( |
| 3584 | aBuilder, this, &resultList, containerItemASR, opacityItemForEventsOnly, |
| 3585 | needsActiveOpacityLayer, usingBackdropFilter); |
| 3586 | createdContainer = true; |
| 3587 | } |
| 3588 | |
| 3589 | // If we're going to apply a transformation and don't have preserve-3d set, |
| 3590 | // wrap everything in an nsDisplayTransform. If there's nothing in the list, |
| 3591 | // don't add anything. |
| 3592 | // |
| 3593 | // For the preserve-3d case we want to individually wrap every child in the |
| 3594 | // list with a separate nsDisplayTransform instead. When the child is already |
| 3595 | // an nsDisplayTransform, we can skip this step, as the computed transform |
| 3596 | // will already include our own. |
| 3597 | // |
| 3598 | // We also traverse into sublists created by nsDisplayWrapList, so that we |
| 3599 | // find all the correct children. |
| 3600 | if (isTransformed && extend3DContext) { |
| 3601 | // Install dummy nsDisplayTransform as a leaf containing |
| 3602 | // descendants not participating this 3D rendering context. |
| 3603 | nsDisplayList nonparticipants(aBuilder); |
| 3604 | nsDisplayList participants(aBuilder); |
| 3605 | int index = 1; |
| 3606 | |
| 3607 | nsDisplayItem* separator = nullptr; |
| 3608 | |
| 3609 | // TODO: This can be simplified: |participants| is just |resultList|. |
| 3610 | for (nsDisplayItem* item : resultList.TakeItems()) { |
| 3611 | if (ItemParticipatesIn3DContext(this, item) && |
| 3612 | !item->GetClip().HasClip()) { |
| 3613 | // The frame of this item participates the same 3D context. |
| 3614 | WrapSeparatorTransform(aBuilder, this, &nonparticipants, &participants, |
| 3615 | index++, &separator); |
| 3616 | |
| 3617 | participants.AppendToTop(item); |
| 3618 | } else { |
| 3619 | // The frame of the item doesn't participate the current |
| 3620 | // context, or has no transform. |
| 3621 | // |
| 3622 | // For items participating but not transformed, they are add |
| 3623 | // to nonparticipants to get a separator layer for handling |
| 3624 | // clips, if there is, on an intermediate surface. |
| 3625 | // \see ContainerLayer::DefaultComputeEffectiveTransforms(). |
| 3626 | nonparticipants.AppendToTop(item); |
| 3627 | } |
| 3628 | } |
| 3629 | WrapSeparatorTransform(aBuilder, this, &nonparticipants, &participants, |
| 3630 | index++, &separator); |
| 3631 | |
| 3632 | if (separator) { |
| 3633 | createdContainer = true; |
| 3634 | } |
| 3635 | |
| 3636 | resultList.AppendToTop(&participants); |
| 3637 | } |
| 3638 | |
| 3639 | if (isTransformed) { |
| 3640 | transformedCssClip.Restore(); |
| 3641 | if (clipCapturedBy == ContainerItemType::Transform) { |
| 3642 | // Restore clip state now so nsDisplayTransform is clipped properly. |
| 3643 | clipState.Restore(); |
| 3644 | } |
| 3645 | // Revert to the dirtyrect coming in from the parent, without our transform |
| 3646 | // taken into account. |
| 3647 | aBuilder->SetVisibleRect(visibleRectOutsideTransform); |
| 3648 | |
| 3649 | if (this != aBuilder->RootReferenceFrame()) { |
| 3650 | // Revert to the outer reference frame and offset because all display |
| 3651 | // items we create from now on are outside the transform. |
| 3652 | nsPoint toOuterReferenceFrame; |
| 3653 | const nsIFrame* outerReferenceFrame = |
| 3654 | aBuilder->FindReferenceFrameFor(GetParent(), &toOuterReferenceFrame); |
| 3655 | toOuterReferenceFrame += GetPosition(); |
| 3656 | |
| 3657 | buildingDisplayList.SetReferenceFrameAndCurrentOffset( |
| 3658 | outerReferenceFrame, toOuterReferenceFrame); |
| 3659 | } |
| 3660 | |
| 3661 | // We would like to block async animations for ancestors of ones not |
| 3662 | // prerendered in the preserve-3d tree. Now that we've finished processing |
| 3663 | // all descendants, update allowAsyncAnimation to take their prerender |
| 3664 | // state into account |
| 3665 | // FIXME: We don't block async animations for previous siblings because |
| 3666 | // their prerender decisions have been made. We may have to figure out a |
| 3667 | // better way to rollback their prerender decisions. |
| 3668 | // Alternatively we could not block animations for later siblings, and only |
| 3669 | // block them for ancestors of a blocked one. |
| 3670 | if ((extend3DContext || combines3DTransformWithAncestors) && |
| 3671 | prerenderInfo.CanUseAsyncAnimations() && |
| 3672 | !aBuilder->GetPreserves3DAllowAsyncAnimation()) { |
| 3673 | // aBuilder->GetPreserves3DAllowAsyncAnimation() means the inner or |
| 3674 | // previous silbing frames are allowed/disallowed for async animations. |
| 3675 | prerenderInfo.mDecision = nsDisplayTransform::PrerenderDecision::No; |
| 3676 | } |
| 3677 | |
| 3678 | nsDisplayTransform* transformItem = MakeDisplayItem<nsDisplayTransform>( |
| 3679 | aBuilder, this, &resultList, visibleRect, prerenderInfo.mDecision); |
| 3680 | if (transformItem) { |
| 3681 | resultList.AppendToTop(transformItem); |
| 3682 | createdContainer = true; |
| 3683 | } |
| 3684 | |
| 3685 | if (hasPerspective) { |
| 3686 | transformItem->MarkWithAssociatedPerspective(); |
| 3687 | |
| 3688 | if (clipCapturedBy == ContainerItemType::Perspective) { |
| 3689 | clipState.Restore(); |
| 3690 | } |
| 3691 | resultList.AppendNewToTop<nsDisplayPerspective>(aBuilder, this, |
| 3692 | &resultList); |
| 3693 | createdContainer = true; |
| 3694 | } |
| 3695 | } |
| 3696 | |
| 3697 | if (clipCapturedBy == |
| 3698 | ContainerItemType::OwnLayerForTransformWithRoundedClip) { |
| 3699 | clipState.Restore(); |
| 3700 | resultList.AppendNewToTopWithIndex<nsDisplayOwnLayer>( |
| 3701 | aBuilder, this, |
| 3702 | /* aIndex = */ nsDisplayOwnLayer::OwnLayerForTransformWithRoundedClip, |
| 3703 | &resultList, aBuilder->CurrentActiveScrolledRoot(), |
| 3704 | nsDisplayOwnLayerFlags::None, ScrollbarData{}, |
| 3705 | /* aForceActive = */ false, false); |
| 3706 | createdContainer = true; |
| 3707 | } |
| 3708 | |
| 3709 | // If we have sticky positioning, wrap it in a sticky position item. |
| 3710 | if (useFixedPosition) { |
| 3711 | if (clipCapturedBy == ContainerItemType::FixedPosition) { |
| 3712 | clipState.Restore(); |
| 3713 | } |
| 3714 | // The ASR for the fixed item should be the ASR of our containing block, |
| 3715 | // which has been set as the builder's current ASR, unless this frame is |
| 3716 | // invisible and we hadn't saved display item data for it. In that case, |
| 3717 | // we need to take the containerItemASR since we might have fixed children. |
| 3718 | // For WebRender, we want to the know what |containerItemASR| is for the |
| 3719 | // case where the fixed-pos item is not a "real" fixed-pos item (e.g. it's |
| 3720 | // nested inside a scrolling transform), so we stash that on the display |
| 3721 | // item as well. |
| 3722 | const ActiveScrolledRoot* fixedASR = ActiveScrolledRoot::PickAncestor( |
| 3723 | containerItemASR, aBuilder->CurrentActiveScrolledRoot()); |
| 3724 | resultList.AppendNewToTop<nsDisplayFixedPosition>( |
| 3725 | aBuilder, this, &resultList, fixedASR, containerItemASR); |
| 3726 | createdContainer = true; |
| 3727 | } else if (useStickyPosition) { |
| 3728 | // For position:sticky, the clip needs to be applied both to the sticky |
| 3729 | // container item and to the contents. The container item needs the clip |
| 3730 | // because a scrolled clip needs to move independently from the sticky |
| 3731 | // contents, and the contents need the clip so that they have finite |
| 3732 | // clipped bounds with respect to the container item's ASR. The latter is |
| 3733 | // a little tricky in the case where the sticky item has both fixed and |
| 3734 | // non-fixed descendants, because that means that the sticky container |
| 3735 | // item's ASR is the ASR of the fixed descendant. |
| 3736 | // For WebRender display list building, though, we still want to know the |
| 3737 | // the ASR that the sticky container item would normally have, so we stash |
| 3738 | // that on the display item as the "container ASR" (i.e. the normal ASR of |
| 3739 | // the container item, excluding the special behaviour induced by fixed |
| 3740 | // descendants). |
| 3741 | const ActiveScrolledRoot* stickyASR = ActiveScrolledRoot::PickAncestor( |
| 3742 | containerItemASR, aBuilder->CurrentActiveScrolledRoot()); |
| 3743 | |
| 3744 | auto* stickyItem = MakeDisplayItem<nsDisplayStickyPosition>( |
| 3745 | aBuilder, this, &resultList, stickyASR, |
| 3746 | aBuilder->CurrentActiveScrolledRoot(), |
| 3747 | clipState.IsClippedToDisplayPort()); |
| 3748 | |
| 3749 | bool shouldFlatten = true; |
| 3750 | |
| 3751 | StickyScrollContainer* stickyScrollContainer = |
| 3752 | StickyScrollContainer::GetStickyScrollContainerForFrame(this); |
| 3753 | if (stickyScrollContainer && |
| 3754 | stickyScrollContainer->ScrollFrame()->IsMaybeAsynchronouslyScrolled()) { |
| 3755 | shouldFlatten = false; |
| 3756 | } |
| 3757 | |
| 3758 | stickyItem->SetShouldFlatten(shouldFlatten); |
| 3759 | |
| 3760 | resultList.AppendToTop(stickyItem); |
| 3761 | createdContainer = true; |
| 3762 | |
| 3763 | // If the sticky element is inside a filter, annotate the scroll frame that |
| 3764 | // scrolls the filter as having out-of-flow content inside a filter (this |
| 3765 | // inhibits paint skipping). |
| 3766 | if (aBuilder->GetFilterASR() && aBuilder->GetFilterASR() == stickyASR) { |
| 3767 | aBuilder->GetFilterASR() |
| 3768 | ->mScrollableFrame->SetHasOutOfFlowContentInsideFilter(); |
| 3769 | } |
| 3770 | } |
| 3771 | |
| 3772 | // If there's blending, wrap up the list in a blend-mode item. Note that |
| 3773 | // opacity can be applied before blending as the blend color is not affected |
| 3774 | // by foreground opacity (only background alpha). |
| 3775 | if (useBlendMode) { |
| 3776 | DisplayListClipState::AutoSaveRestore blendModeClipState(aBuilder); |
| 3777 | resultList.AppendNewToTop<nsDisplayBlendMode>(aBuilder, this, &resultList, |
| 3778 | effects->mMixBlendMode, |
| 3779 | containerItemASR, false); |
| 3780 | createdContainer = true; |
| 3781 | } |
| 3782 | |
| 3783 | if (aBuilder->IsReusingStackingContextItems()) { |
| 3784 | if (resultList.IsEmpty()) { |
| 3785 | return; |
| 3786 | } |
| 3787 | |
| 3788 | nsDisplayItem* container = resultList.GetBottom(); |
| 3789 | if (resultList.Length() > 1 || container->Frame() != this) { |
| 3790 | container = MakeDisplayItem<nsDisplayContainer>( |
| 3791 | aBuilder, this, containerItemASR, &resultList); |
| 3792 | } else { |
| 3793 | MOZ_ASSERT(resultList.Length() == 1)do { static_assert( mozilla::detail::AssertionConditionType< decltype(resultList.Length() == 1)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(resultList.Length() == 1))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("resultList.Length() == 1" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 3793); AnnotateMozCrashReason("MOZ_ASSERT" "(" "resultList.Length() == 1" ")"); do { *((volatile int*)__null) = 3793; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3794 | resultList.Clear(); |
| 3795 | } |
| 3796 | |
| 3797 | // Mark the outermost display item as reusable. These display items and |
| 3798 | // their chidren can be reused during the next paint if no ancestor or |
| 3799 | // descendant frames have been modified. |
| 3800 | if (!container->IsReusedItem()) { |
| 3801 | container->SetReusable(); |
| 3802 | } |
| 3803 | aList->AppendToTop(container); |
| 3804 | createdContainer = true; |
| 3805 | } else { |
| 3806 | aList->AppendToTop(&resultList); |
| 3807 | } |
| 3808 | |
| 3809 | if (aCreatedContainerItem) { |
| 3810 | *aCreatedContainerItem = createdContainer; |
| 3811 | } |
| 3812 | } |
| 3813 | |
| 3814 | static nsDisplayItem* WrapInWrapList(nsDisplayListBuilder* aBuilder, |
| 3815 | nsIFrame* aFrame, nsDisplayList* aList, |
| 3816 | const ActiveScrolledRoot* aContainerASR, |
| 3817 | bool aBuiltContainerItem = false) { |
| 3818 | nsDisplayItem* item = aList->GetBottom(); |
| 3819 | if (!item) { |
| 3820 | return nullptr; |
| 3821 | } |
| 3822 | |
| 3823 | // We need a wrap list if there are multiple items, or if the single |
| 3824 | // item has a different frame. This can change in a partial build depending |
| 3825 | // on which items we build, so we need to ensure that we don't transition |
| 3826 | // to/from a wrap list without invalidating correctly. |
| 3827 | bool needsWrapList = |
| 3828 | aList->Length() > 1 || item->Frame() != aFrame || item->GetChildren(); |
| 3829 | |
| 3830 | // If we have an explicit container item (that can't change without an |
| 3831 | // invalidation) or we're doing a full build and don't need a wrap list, then |
| 3832 | // we can skip adding one. |
| 3833 | if (aBuiltContainerItem || (!aBuilder->IsPartialUpdate() && !needsWrapList)) { |
| 3834 | MOZ_ASSERT(aList->Length() == 1)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aList->Length() == 1)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aList->Length() == 1))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aList->Length() == 1" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 3834); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aList->Length() == 1" ")"); do { *((volatile int*)__null) = 3834; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3835 | aList->Clear(); |
| 3836 | return item; |
| 3837 | } |
| 3838 | |
| 3839 | // If we're doing a partial build and we didn't need a wrap list |
| 3840 | // previously then we can try to work from there. |
| 3841 | if (aBuilder->IsPartialUpdate() && |
| 3842 | !aFrame->HasDisplayItem(uint32_t(DisplayItemType::TYPE_CONTAINER))) { |
| 3843 | // If we now need a wrap list, we must previously have had no display items |
| 3844 | // or a single one belonging to this frame. Mark the item itself as |
| 3845 | // discarded so that RetainedDisplayListBuilder uses the ones we just built. |
| 3846 | // We don't want to mark the frame as modified as that would invalidate |
| 3847 | // positioned descendants that might be outside of this list, and might not |
| 3848 | // have been rebuilt this time. |
| 3849 | if (needsWrapList) { |
| 3850 | DiscardOldItems(aFrame); |
| 3851 | } else { |
| 3852 | MOZ_ASSERT(aList->Length() == 1)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aList->Length() == 1)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aList->Length() == 1))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aList->Length() == 1" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 3852); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aList->Length() == 1" ")"); do { *((volatile int*)__null) = 3852; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3853 | aList->Clear(); |
| 3854 | return item; |
| 3855 | } |
| 3856 | } |
| 3857 | |
| 3858 | // The last case we could try to handle is when we previously had a wrap list, |
| 3859 | // but no longer need it. Unfortunately we can't differentiate this case from |
| 3860 | // a partial build where other children exist but we just didn't build them |
| 3861 | // this time. |
| 3862 | // TODO:RetainedDisplayListBuilder's merge phase has the full list and |
| 3863 | // could strip them out. |
| 3864 | |
| 3865 | return MakeDisplayItem<nsDisplayContainer>(aBuilder, aFrame, aContainerASR, |
| 3866 | aList); |
| 3867 | } |
| 3868 | |
| 3869 | /** |
| 3870 | * Check if a frame should be visited for building display list. |
| 3871 | */ |
| 3872 | static bool DescendIntoChild(nsDisplayListBuilder* aBuilder, |
| 3873 | const nsIFrame* aChild, const nsRect& aVisible, |
| 3874 | const nsRect& aDirty) { |
| 3875 | if (aChild->HasAnyStateBits(NS_FRAME_FORCE_DISPLAY_LIST_DESCEND_INTO)) { |
| 3876 | return true; |
| 3877 | } |
| 3878 | |
| 3879 | // If the child is a scrollframe that we want to ignore, then we need |
| 3880 | // to descend into it because its scrolled child may intersect the dirty |
| 3881 | // area even if the scrollframe itself doesn't. |
| 3882 | if (aChild == aBuilder->GetIgnoreScrollFrame()) { |
| 3883 | return true; |
| 3884 | } |
| 3885 | |
| 3886 | // There are cases where the "ignore scroll frame" on the builder is not set |
| 3887 | // correctly, and so we additionally want to catch cases where the child is |
| 3888 | // a root scrollframe and we are ignoring scrolling on the viewport. |
| 3889 | if (aChild == aBuilder->GetPresShellIgnoreScrollFrame()) { |
| 3890 | return true; |
| 3891 | } |
| 3892 | |
| 3893 | nsRect overflow = aChild->InkOverflowRect(); |
| 3894 | |
| 3895 | // On mobile, there may be a dynamic toolbar. The root content document's |
| 3896 | // root scroll frame's ink overflow rect does not include the toolbar |
| 3897 | // height, but if the toolbar is hidden, we still want to be able to target |
| 3898 | // content underneath the toolbar, so expand the overflow rect here to |
| 3899 | // allow display list building to descend into the scroll frame. |
| 3900 | if (aBuilder->IsForEventDelivery() && |
| 3901 | aChild == aChild->PresShell()->GetRootScrollFrame() && |
| 3902 | aChild->PresContext()->IsRootContentDocumentCrossProcess() && |
| 3903 | aChild->PresContext()->HasDynamicToolbar()) { |
| 3904 | overflow.SizeTo(nsLayoutUtils::ExpandHeightForDynamicToolbar( |
| 3905 | aChild->PresContext(), overflow.Size())); |
| 3906 | } |
| 3907 | |
| 3908 | if (aDirty.Intersects(overflow)) { |
| 3909 | return true; |
| 3910 | } |
| 3911 | |
| 3912 | if (aChild->ForceDescendIntoIfVisible() && aVisible.Intersects(overflow)) { |
| 3913 | return true; |
| 3914 | } |
| 3915 | |
| 3916 | if (aChild->IsTablePart()) { |
| 3917 | // Relative positioning and transforms can cause table parts to move, but we |
| 3918 | // will still paint the backgrounds for their ancestor parts under them at |
| 3919 | // their 'normal' position. That means that we must consider the overflow |
| 3920 | // rects at both positions. |
| 3921 | |
| 3922 | // We convert the overflow rect into the nsTableFrame's coordinate |
| 3923 | // space, applying the normal position offset at each step. Then we |
| 3924 | // compare that against the builder's cached dirty rect in table |
| 3925 | // coordinate space. |
| 3926 | const nsIFrame* f = aChild; |
| 3927 | nsRect normalPositionOverflowRelativeToTable = overflow; |
| 3928 | |
| 3929 | while (f->IsTablePart()) { |
| 3930 | normalPositionOverflowRelativeToTable += f->GetNormalPosition(); |
| 3931 | f = f->GetParent(); |
| 3932 | } |
| 3933 | |
| 3934 | nsDisplayTableBackgroundSet* tableBGs = aBuilder->GetTableBackgroundSet(); |
| 3935 | if (tableBGs && tableBGs->GetDirtyRect().Intersects( |
| 3936 | normalPositionOverflowRelativeToTable)) { |
| 3937 | return true; |
| 3938 | } |
| 3939 | } |
| 3940 | |
| 3941 | return false; |
| 3942 | } |
| 3943 | |
| 3944 | void nsIFrame::BuildDisplayListForSimpleChild(nsDisplayListBuilder* aBuilder, |
| 3945 | nsIFrame* aChild, |
| 3946 | const nsDisplayListSet& aLists) { |
| 3947 | // This is the shortcut for frames been handled along the common |
| 3948 | // path, the most common one of THE COMMON CASE mentioned later. |
| 3949 | MOZ_ASSERT(aChild->Type() != LayoutFrameType::Placeholder)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChild->Type() != LayoutFrameType::Placeholder)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aChild->Type() != LayoutFrameType::Placeholder))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aChild->Type() != LayoutFrameType::Placeholder" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 3949); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChild->Type() != LayoutFrameType::Placeholder" ")"); do { *((volatile int*)__null) = 3949; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3950 | MOZ_ASSERT(!aBuilder->GetSelectedFramesOnly() &&do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aBuilder->GetSelectedFramesOnly() && !aBuilder ->GetIncludeAllOutOfFlows())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aBuilder->GetSelectedFramesOnly () && !aBuilder->GetIncludeAllOutOfFlows()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("!aBuilder->GetSelectedFramesOnly() && !aBuilder->GetIncludeAllOutOfFlows()" " (" "It should be held for painting to window" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 3952); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aBuilder->GetSelectedFramesOnly() && !aBuilder->GetIncludeAllOutOfFlows()" ") (" "It should be held for painting to window" ")"); do { * ((volatile int*)__null) = 3952; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) |
| 3951 | !aBuilder->GetIncludeAllOutOfFlows(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aBuilder->GetSelectedFramesOnly() && !aBuilder ->GetIncludeAllOutOfFlows())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aBuilder->GetSelectedFramesOnly () && !aBuilder->GetIncludeAllOutOfFlows()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("!aBuilder->GetSelectedFramesOnly() && !aBuilder->GetIncludeAllOutOfFlows()" " (" "It should be held for painting to window" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 3952); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aBuilder->GetSelectedFramesOnly() && !aBuilder->GetIncludeAllOutOfFlows()" ") (" "It should be held for painting to window" ")"); do { * ((volatile int*)__null) = 3952; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) |
| 3952 | "It should be held for painting to window")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aBuilder->GetSelectedFramesOnly() && !aBuilder ->GetIncludeAllOutOfFlows())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!aBuilder->GetSelectedFramesOnly () && !aBuilder->GetIncludeAllOutOfFlows()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("!aBuilder->GetSelectedFramesOnly() && !aBuilder->GetIncludeAllOutOfFlows()" " (" "It should be held for painting to window" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 3952); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aBuilder->GetSelectedFramesOnly() && !aBuilder->GetIncludeAllOutOfFlows()" ") (" "It should be held for painting to window" ")"); do { * ((volatile int*)__null) = 3952; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 3953 | MOZ_ASSERT(aChild->HasAnyStateBits(NS_FRAME_SIMPLE_DISPLAYLIST))do { static_assert( mozilla::detail::AssertionConditionType< decltype(aChild->HasAnyStateBits(NS_FRAME_SIMPLE_DISPLAYLIST ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aChild->HasAnyStateBits(NS_FRAME_SIMPLE_DISPLAYLIST )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aChild->HasAnyStateBits(NS_FRAME_SIMPLE_DISPLAYLIST)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 3953); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aChild->HasAnyStateBits(NS_FRAME_SIMPLE_DISPLAYLIST)" ")"); do { *((volatile int*)__null) = 3953; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3954 | |
| 3955 | const nsPoint offset = aChild->GetOffsetTo(this); |
| 3956 | const nsRect visible = aBuilder->GetVisibleRect() - offset; |
| 3957 | const nsRect dirty = aBuilder->GetDirtyRect() - offset; |
| 3958 | |
| 3959 | if (!DescendIntoChild(aBuilder, aChild, visible, dirty)) { |
| 3960 | DL_LOGV("Skipped frame %p", aChild)do { const ::mozilla::LogModule* moz_real_module = GetLoggerByProcess (); if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Skipped frame %p", aChild); } } while ( 0); |
| 3961 | return; |
| 3962 | } |
| 3963 | |
| 3964 | // Child cannot be transformed since it is not a stacking context. |
| 3965 | nsDisplayListBuilder::AutoBuildingDisplayList buildingForChild( |
| 3966 | aBuilder, aChild, visible, dirty, false); |
| 3967 | |
| 3968 | UpdateCurrentHitTestInfo(aBuilder, aChild); |
| 3969 | |
| 3970 | aChild->MarkAbsoluteFramesForDisplayList(aBuilder); |
| 3971 | aBuilder->AdjustWindowDraggingRegion(aChild); |
| 3972 | aBuilder->Check(); |
| 3973 | aChild->BuildDisplayList(aBuilder, aLists); |
| 3974 | aChild->SetBuiltDisplayList(true); |
| 3975 | aBuilder->Check(); |
| 3976 | aBuilder->DisplayCaret(aChild, aLists.Outlines()); |
| 3977 | } |
| 3978 | |
| 3979 | static bool ShouldSkipFrame(nsDisplayListBuilder* aBuilder, |
| 3980 | const nsIFrame* aFrame) { |
| 3981 | // If painting is restricted to just the background of the top level frame, |
| 3982 | // then we have nothing to do here. |
| 3983 | if (aBuilder->IsBackgroundOnly()) { |
| 3984 | return true; |
| 3985 | } |
| 3986 | if (aBuilder->IsForGenerateGlyphMask() && |
| 3987 | (!aFrame->IsTextFrame() && aFrame->IsLeaf())) { |
| 3988 | return true; |
| 3989 | } |
| 3990 | // The placeholder frame should have the same content as the OOF frame. |
| 3991 | if (aBuilder->GetSelectedFramesOnly() && |
| 3992 | (aFrame->IsLeaf() && !aFrame->IsSelected())) { |
| 3993 | return true; |
| 3994 | } |
| 3995 | static const nsFrameState skipFlags = |
| 3996 | (NS_FRAME_TOO_DEEP_IN_FRAME_TREE | NS_FRAME_IS_NONDISPLAY); |
| 3997 | if (aFrame->HasAnyStateBits(skipFlags)) { |
| 3998 | return true; |
| 3999 | } |
| 4000 | return aFrame->StyleUIReset()->mMozSubtreeHiddenOnlyVisually; |
| 4001 | } |
| 4002 | |
| 4003 | void nsIFrame::BuildDisplayListForChild(nsDisplayListBuilder* aBuilder, |
| 4004 | nsIFrame* aChild, |
| 4005 | const nsDisplayListSet& aLists, |
| 4006 | DisplayChildFlags aFlags) { |
| 4007 | AutoCheckBuilder check(aBuilder); |
| 4008 | #ifdef DEBUG1 |
| 4009 | DL_LOGV("BuildDisplayListForChild (%p) <", aChild)do { const ::mozilla::LogModule* moz_real_module = GetLoggerByProcess (); if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "BuildDisplayListForChild (%p) <", aChild ); } } while (0); |
| 4010 | ScopeExit e( |
| 4011 | [aChild]() { DL_LOGV("> BuildDisplayListForChild (%p)", aChild)do { const ::mozilla::LogModule* moz_real_module = GetLoggerByProcess (); if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "> BuildDisplayListForChild (%p)", aChild ); } } while (0); }); |
| 4012 | #endif |
| 4013 | |
| 4014 | if (ShouldSkipFrame(aBuilder, aChild)) { |
| 4015 | return; |
| 4016 | } |
| 4017 | |
| 4018 | if (HidesContent()) { |
| 4019 | return; |
| 4020 | } |
| 4021 | |
| 4022 | // If we're generating a display list for printing, include Link items for |
| 4023 | // frames that correspond to HTML link elements so that we can have active |
| 4024 | // links in saved PDF output. Note that the state of "within a link" is |
| 4025 | // set on the display-list builder, such that all descendants of the link |
| 4026 | // element will generate display-list links. |
| 4027 | // TODO: we should be able to optimize this so as to avoid creating links |
| 4028 | // for the same destination that entirely overlap each other, which adds |
| 4029 | // nothing useful to the final PDF. |
| 4030 | Maybe<nsDisplayListBuilder::Linkifier> linkifier; |
| 4031 | if (StaticPrefs::print_save_as_pdf_links_enabled() && |
| 4032 | aBuilder->IsForPrinting()) { |
| 4033 | linkifier.emplace(aBuilder, aChild, aLists.Content()); |
| 4034 | linkifier->MaybeAppendLink(aBuilder, aChild); |
| 4035 | } |
| 4036 | |
| 4037 | nsIFrame* child = aChild; |
| 4038 | auto* placeholder = child->IsPlaceholderFrame() |
| 4039 | ? static_cast<nsPlaceholderFrame*>(child) |
| 4040 | : nullptr; |
| 4041 | nsIFrame* childOrOutOfFlow = |
| 4042 | placeholder ? placeholder->GetOutOfFlowFrame() : child; |
| 4043 | |
| 4044 | nsIFrame* parent = childOrOutOfFlow->GetParent(); |
| 4045 | const auto* parentDisplay = parent->StyleDisplay(); |
| 4046 | const auto overflowClipAxes = |
| 4047 | parent->ShouldApplyOverflowClipping(parentDisplay); |
| 4048 | |
| 4049 | const bool isPaintingToWindow = aBuilder->IsPaintingToWindow(); |
| 4050 | const bool doingShortcut = |
| 4051 | isPaintingToWindow && |
| 4052 | child->HasAnyStateBits(NS_FRAME_SIMPLE_DISPLAYLIST) && |
| 4053 | // Animations may change the stacking context state. |
| 4054 | // ShouldApplyOverflowClipping is affected by the parent style, which does |
| 4055 | // not invalidate the NS_FRAME_SIMPLE_DISPLAYLIST bit. |
| 4056 | !(overflowClipAxes != PhysicalAxes::None || |
| 4057 | child->MayHaveTransformAnimation() || child->MayHaveOpacityAnimation()); |
| 4058 | |
| 4059 | if (aBuilder->IsForPainting()) { |
| 4060 | aBuilder->ClearWillChangeBudgetStatus(child); |
| 4061 | } |
| 4062 | |
| 4063 | if (StaticPrefs::layout_css_scroll_anchoring_highlight()) { |
| 4064 | if (child->FirstContinuation()->IsScrollAnchor()) { |
| 4065 | nsRect bounds = child->GetContentRectRelativeToSelf() + |
| 4066 | aBuilder->ToReferenceFrame(child); |
| 4067 | nsDisplaySolidColor* color = MakeDisplayItem<nsDisplaySolidColor>( |
| 4068 | aBuilder, child, bounds, NS_RGBA(255, 0, 255, 64)((nscolor)(((64) << 24) | ((255) << 16) | ((0) << 8) | (255)))); |
| 4069 | if (color) { |
| 4070 | color->SetOverrideZIndex(INT32_MAX(2147483647)); |
| 4071 | aLists.PositionedDescendants()->AppendToTop(color); |
| 4072 | } |
| 4073 | } |
| 4074 | } |
| 4075 | |
| 4076 | if (doingShortcut) { |
| 4077 | BuildDisplayListForSimpleChild(aBuilder, child, aLists); |
| 4078 | return; |
| 4079 | } |
| 4080 | |
| 4081 | // dirty rect in child-relative coordinates |
| 4082 | NS_ASSERTION(aBuilder->GetCurrentFrame() == this, "Wrong coord space!")do { if (!(aBuilder->GetCurrentFrame() == this)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Wrong coord space!", "aBuilder->GetCurrentFrame() == this" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4082); MOZ_PretendNoReturn(); } } while (0); |
| 4083 | const nsPoint offset = child->GetOffsetTo(this); |
| 4084 | nsRect visible = aBuilder->GetVisibleRect() - offset; |
| 4085 | nsRect dirty = aBuilder->GetDirtyRect() - offset; |
| 4086 | |
| 4087 | nsDisplayListBuilder::OutOfFlowDisplayData* savedOutOfFlowData = nullptr; |
| 4088 | if (placeholder) { |
| 4089 | if (placeholder->HasAnyStateBits(PLACEHOLDER_FOR_TOPLAYER)) { |
| 4090 | // If the out-of-flow frame is in the top layer, the viewport frame |
| 4091 | // will paint it. Skip it here. Note that, only out-of-flow frames |
| 4092 | // with this property should be skipped, because non-HTML elements |
| 4093 | // may stop their children from being out-of-flow. Those frames |
| 4094 | // should still be handled in the normal in-flow path. |
| 4095 | return; |
| 4096 | } |
| 4097 | |
| 4098 | child = childOrOutOfFlow; |
| 4099 | if (aBuilder->IsForPainting()) { |
| 4100 | aBuilder->ClearWillChangeBudgetStatus(child); |
| 4101 | } |
| 4102 | |
| 4103 | // If 'child' is a pushed float then it's owned by a block that's not an |
| 4104 | // ancestor of the placeholder, and it will be painted by that block and |
| 4105 | // should not be painted through the placeholder. Also recheck |
| 4106 | // NS_FRAME_TOO_DEEP_IN_FRAME_TREE and NS_FRAME_IS_NONDISPLAY. |
| 4107 | static const nsFrameState skipFlags = |
| 4108 | (NS_FRAME_IS_PUSHED_FLOAT | NS_FRAME_TOO_DEEP_IN_FRAME_TREE | |
| 4109 | NS_FRAME_IS_NONDISPLAY); |
| 4110 | if (child->HasAnyStateBits(skipFlags) || nsLayoutUtils::IsPopup(child)) { |
| 4111 | return; |
| 4112 | } |
| 4113 | |
| 4114 | MOZ_ASSERT(child->HasAnyStateBits(NS_FRAME_OUT_OF_FLOW))do { static_assert( mozilla::detail::AssertionConditionType< decltype(child->HasAnyStateBits(NS_FRAME_OUT_OF_FLOW))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(child->HasAnyStateBits(NS_FRAME_OUT_OF_FLOW)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("child->HasAnyStateBits(NS_FRAME_OUT_OF_FLOW)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4114); AnnotateMozCrashReason("MOZ_ASSERT" "(" "child->HasAnyStateBits(NS_FRAME_OUT_OF_FLOW)" ")"); do { *((volatile int*)__null) = 4114; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4115 | savedOutOfFlowData = nsDisplayListBuilder::GetOutOfFlowData(child); |
| 4116 | |
| 4117 | if (aBuilder->GetIncludeAllOutOfFlows()) { |
| 4118 | visible = child->InkOverflowRect(); |
| 4119 | dirty = child->InkOverflowRect(); |
| 4120 | } else if (savedOutOfFlowData) { |
| 4121 | visible = |
| 4122 | savedOutOfFlowData->GetVisibleRectForFrame(aBuilder, child, &dirty); |
| 4123 | } else { |
| 4124 | // The out-of-flow frame did not intersect the dirty area. We may still |
| 4125 | // need to traverse into it, since it may contain placeholders we need |
| 4126 | // to enter to reach other out-of-flow frames that are visible. |
| 4127 | visible.SetEmpty(); |
| 4128 | dirty.SetEmpty(); |
| 4129 | } |
| 4130 | } |
| 4131 | |
| 4132 | NS_ASSERTION(!child->IsPlaceholderFrame(),do { if (!(!child->IsPlaceholderFrame())) { NS_DebugBreak( NS_DEBUG_ASSERTION, "Should have dealt with placeholders already" , "!child->IsPlaceholderFrame()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4133); MOZ_PretendNoReturn(); } } while (0) |
| 4133 | "Should have dealt with placeholders already")do { if (!(!child->IsPlaceholderFrame())) { NS_DebugBreak( NS_DEBUG_ASSERTION, "Should have dealt with placeholders already" , "!child->IsPlaceholderFrame()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4133); MOZ_PretendNoReturn(); } } while (0); |
| 4134 | |
| 4135 | if (!DescendIntoChild(aBuilder, child, visible, dirty)) { |
| 4136 | DL_LOGV("Skipped frame %p", child)do { const ::mozilla::LogModule* moz_real_module = GetLoggerByProcess (); if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "Skipped frame %p", child); } } while (0 ); |
| 4137 | return; |
| 4138 | } |
| 4139 | |
| 4140 | const bool isSVG = child->HasAnyStateBits(NS_FRAME_SVG_LAYOUT); |
| 4141 | |
| 4142 | // This flag is raised if the control flow strays off the common path. |
| 4143 | // The common path is the most common one of THE COMMON CASE mentioned later. |
| 4144 | bool awayFromCommonPath = !isPaintingToWindow; |
| 4145 | |
| 4146 | // true if this is a real or pseudo stacking context |
| 4147 | bool pseudoStackingContext = |
| 4148 | aFlags.contains(DisplayChildFlag::ForcePseudoStackingContext); |
| 4149 | |
| 4150 | if (!pseudoStackingContext && !isSVG && |
| 4151 | aFlags.contains(DisplayChildFlag::Inline) && |
| 4152 | !child->IsLineParticipant()) { |
| 4153 | // child is a non-inline frame in an inline context, i.e., |
| 4154 | // it acts like inline-block or inline-table. Therefore it is a |
| 4155 | // pseudo-stacking-context. |
| 4156 | pseudoStackingContext = true; |
| 4157 | } |
| 4158 | |
| 4159 | const nsStyleDisplay* ourDisp = StyleDisplay(); |
| 4160 | // Don't paint our children if the theme object is a leaf. |
| 4161 | if (IsThemed(ourDisp) && !PresContext()->Theme()->WidgetIsContainer( |
| 4162 | ourDisp->EffectiveAppearance())) { |
| 4163 | return; |
| 4164 | } |
| 4165 | |
| 4166 | // Since we're now sure that we're adding this frame to the display list |
| 4167 | // (which means we're painting it, modulo occlusion), mark it as visible |
| 4168 | // within the displayport. |
| 4169 | if (isPaintingToWindow && child->TrackingVisibility() && |
| 4170 | child->IsVisibleForPainting()) { |
| 4171 | child->PresShell()->EnsureFrameInApproximatelyVisibleList(child); |
| 4172 | awayFromCommonPath = true; |
| 4173 | } |
| 4174 | |
| 4175 | // Child is composited if it's transformed, partially transparent, or has |
| 4176 | // SVG effects or a blend mode.. |
| 4177 | const nsStyleDisplay* disp = child->StyleDisplay(); |
| 4178 | const nsStyleEffects* effects = child->StyleEffects(); |
| 4179 | |
| 4180 | const bool isPositioned = disp->IsPositionedStyle(); |
| 4181 | const bool isStackingContext = |
| 4182 | aFlags.contains(DisplayChildFlag::ForceStackingContext) || |
| 4183 | child->IsStackingContext(disp, effects); |
| 4184 | |
| 4185 | if (pseudoStackingContext || isStackingContext || isPositioned || |
| 4186 | placeholder || (!isSVG && disp->IsFloating(child)) || |
| 4187 | (isSVG && effects->mClip.IsRect() && IsSVGContentWithCSSClip(child))) { |
| 4188 | pseudoStackingContext = true; |
| 4189 | awayFromCommonPath = true; |
| 4190 | } |
| 4191 | |
| 4192 | NS_ASSERTION(!isStackingContext || pseudoStackingContext,do { if (!(!isStackingContext || pseudoStackingContext)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Stacking contexts must also be pseudo-stacking-contexts" , "!isStackingContext || pseudoStackingContext", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4193); MOZ_PretendNoReturn(); } } while (0) |
| 4193 | "Stacking contexts must also be pseudo-stacking-contexts")do { if (!(!isStackingContext || pseudoStackingContext)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Stacking contexts must also be pseudo-stacking-contexts" , "!isStackingContext || pseudoStackingContext", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4193); MOZ_PretendNoReturn(); } } while (0); |
| 4194 | |
| 4195 | nsDisplayListBuilder::AutoBuildingDisplayList buildingForChild( |
| 4196 | aBuilder, child, visible, dirty); |
| 4197 | |
| 4198 | UpdateCurrentHitTestInfo(aBuilder, child); |
| 4199 | |
| 4200 | DisplayListClipState::AutoClipMultiple clipState(aBuilder); |
| 4201 | nsDisplayListBuilder::AutoCurrentActiveScrolledRootSetter asrSetter(aBuilder); |
| 4202 | |
| 4203 | if (savedOutOfFlowData) { |
| 4204 | aBuilder->SetBuildingInvisibleItems(false); |
| 4205 | |
| 4206 | clipState.SetClipChainForContainingBlockDescendants( |
| 4207 | savedOutOfFlowData->mContainingBlockClipChain); |
| 4208 | asrSetter.SetCurrentActiveScrolledRoot( |
| 4209 | savedOutOfFlowData->mContainingBlockActiveScrolledRoot); |
| 4210 | asrSetter.SetCurrentScrollParentId(savedOutOfFlowData->mScrollParentId); |
| 4211 | MOZ_ASSERT(awayFromCommonPath,do { static_assert( mozilla::detail::AssertionConditionType< decltype(awayFromCommonPath)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(awayFromCommonPath))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("awayFromCommonPath" " (" "It is impossible when savedOutOfFlowData is true" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4212); AnnotateMozCrashReason("MOZ_ASSERT" "(" "awayFromCommonPath" ") (" "It is impossible when savedOutOfFlowData is true" ")" ); do { *((volatile int*)__null) = 4212; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 4212 | "It is impossible when savedOutOfFlowData is true")do { static_assert( mozilla::detail::AssertionConditionType< decltype(awayFromCommonPath)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(awayFromCommonPath))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("awayFromCommonPath" " (" "It is impossible when savedOutOfFlowData is true" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4212); AnnotateMozCrashReason("MOZ_ASSERT" "(" "awayFromCommonPath" ") (" "It is impossible when savedOutOfFlowData is true" ")" ); do { *((volatile int*)__null) = 4212; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4213 | } else if (HasAnyStateBits(NS_FRAME_FORCE_DISPLAY_LIST_DESCEND_INTO) && |
| 4214 | placeholder) { |
| 4215 | NS_ASSERTION(visible.IsEmpty(), "should have empty visible rect")do { if (!(visible.IsEmpty())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "should have empty visible rect", "visible.IsEmpty()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4215); MOZ_PretendNoReturn(); } } while (0); |
| 4216 | // Every item we build from now until we descent into an out of flow that |
| 4217 | // does have saved out of flow data should be invisible. This state gets |
| 4218 | // restored when AutoBuildingDisplayList gets out of scope. |
| 4219 | aBuilder->SetBuildingInvisibleItems(true); |
| 4220 | |
| 4221 | // If we have nested out-of-flow frames and the outer one isn't visible |
| 4222 | // then we won't have stored clip data for it. We can just clear the clip |
| 4223 | // instead since we know we won't render anything, and the inner out-of-flow |
| 4224 | // frame will setup the correct clip for itself. |
| 4225 | clipState.SetClipChainForContainingBlockDescendants(nullptr); |
| 4226 | } |
| 4227 | |
| 4228 | // Setup clipping for the parent's overflow:clip, |
| 4229 | // or overflow:hidden on elements that don't support scrolling (and therefore |
| 4230 | // don't create nsHTML/XULScrollFrame). This clipping needs to not clip |
| 4231 | // anything directly rendered by the parent, only the rendering of its |
| 4232 | // children. |
| 4233 | // Don't use overflowClip to restrict the dirty rect, since some of the |
| 4234 | // descendants may not be clipped by it. Even if we end up with unnecessary |
| 4235 | // display items, they'll be pruned during ComputeVisibility. |
| 4236 | // |
| 4237 | // FIXME(emilio): Why can't we handle this more similarly to `clip` (on the |
| 4238 | // parent, rather than on the children)? Would ClipContentDescendants do what |
| 4239 | // we want? |
| 4240 | if (overflowClipAxes != PhysicalAxes::None) { |
| 4241 | ApplyOverflowClipping(aBuilder, parent, overflowClipAxes, clipState); |
| 4242 | awayFromCommonPath = true; |
| 4243 | } |
| 4244 | |
| 4245 | nsDisplayList list(aBuilder); |
| 4246 | nsDisplayList extraPositionedDescendants(aBuilder); |
| 4247 | const ActiveScrolledRoot* wrapListASR; |
| 4248 | bool builtContainerItem = false; |
| 4249 | if (isStackingContext) { |
| 4250 | // True stacking context. |
| 4251 | // For stacking contexts, BuildDisplayListForStackingContext handles |
| 4252 | // clipping and MarkAbsoluteFramesForDisplayList. |
| 4253 | nsDisplayListBuilder::AutoContainerASRTracker contASRTracker(aBuilder); |
| 4254 | child->BuildDisplayListForStackingContext(aBuilder, &list, |
| 4255 | &builtContainerItem); |
| 4256 | wrapListASR = contASRTracker.GetContainerASR(); |
| 4257 | if (!aBuilder->IsReusingStackingContextItems() && |
| 4258 | aBuilder->GetCaretFrame() == child) { |
| 4259 | builtContainerItem = false; |
| 4260 | } |
| 4261 | } else { |
| 4262 | Maybe<nsRect> clipPropClip = |
| 4263 | child->GetClipPropClipRect(disp, effects, child->GetSize()); |
| 4264 | if (clipPropClip) { |
| 4265 | aBuilder->IntersectVisibleRect(*clipPropClip); |
| 4266 | aBuilder->IntersectDirtyRect(*clipPropClip); |
| 4267 | clipState.ClipContentDescendants(*clipPropClip + |
| 4268 | aBuilder->ToReferenceFrame(child)); |
| 4269 | awayFromCommonPath = true; |
| 4270 | } |
| 4271 | |
| 4272 | child->MarkAbsoluteFramesForDisplayList(aBuilder); |
| 4273 | child->SetBuiltDisplayList(true); |
| 4274 | |
| 4275 | // Some SVG frames might change opacity without invalidating the frame, so |
| 4276 | // exclude them from the fast-path. |
| 4277 | if (!awayFromCommonPath && !child->IsSVGFrame()) { |
| 4278 | // The shortcut is available for the child for next time. |
| 4279 | child->AddStateBits(NS_FRAME_SIMPLE_DISPLAYLIST); |
| 4280 | } |
| 4281 | |
| 4282 | if (!pseudoStackingContext) { |
| 4283 | // THIS IS THE COMMON CASE. |
| 4284 | // Not a pseudo or real stacking context. Do the simple thing and |
| 4285 | // return early. |
| 4286 | aBuilder->AdjustWindowDraggingRegion(child); |
| 4287 | aBuilder->Check(); |
| 4288 | child->BuildDisplayList(aBuilder, aLists); |
| 4289 | aBuilder->Check(); |
| 4290 | aBuilder->DisplayCaret(child, aLists.Outlines()); |
| 4291 | return; |
| 4292 | } |
| 4293 | |
| 4294 | // A pseudo-stacking context (e.g., a positioned element with z-index auto). |
| 4295 | // We allow positioned descendants of the child to escape to our parent |
| 4296 | // stacking context's positioned descendant list, because they might be |
| 4297 | // z-index:non-auto |
| 4298 | nsDisplayListCollection pseudoStack(aBuilder); |
| 4299 | |
| 4300 | aBuilder->AdjustWindowDraggingRegion(child); |
| 4301 | nsDisplayListBuilder::AutoContainerASRTracker contASRTracker(aBuilder); |
| 4302 | aBuilder->Check(); |
| 4303 | child->BuildDisplayList(aBuilder, pseudoStack); |
| 4304 | aBuilder->Check(); |
| 4305 | if (aBuilder->DisplayCaret(child, pseudoStack.Outlines())) { |
| 4306 | builtContainerItem = false; |
| 4307 | } |
| 4308 | wrapListASR = contASRTracker.GetContainerASR(); |
| 4309 | |
| 4310 | list.AppendToTop(pseudoStack.BorderBackground()); |
| 4311 | list.AppendToTop(pseudoStack.BlockBorderBackgrounds()); |
| 4312 | list.AppendToTop(pseudoStack.Floats()); |
| 4313 | list.AppendToTop(pseudoStack.Content()); |
| 4314 | list.AppendToTop(pseudoStack.Outlines()); |
| 4315 | extraPositionedDescendants.AppendToTop(pseudoStack.PositionedDescendants()); |
| 4316 | } |
| 4317 | |
| 4318 | buildingForChild.RestoreBuildingInvisibleItemsValue(); |
| 4319 | |
| 4320 | if (!list.IsEmpty()) { |
| 4321 | if (isPositioned || isStackingContext) { |
| 4322 | // Genuine stacking contexts, and positioned pseudo-stacking-contexts, |
| 4323 | // go in this level. |
| 4324 | nsDisplayItem* item = WrapInWrapList(aBuilder, child, &list, wrapListASR, |
| 4325 | builtContainerItem); |
| 4326 | if (isSVG) { |
| 4327 | aLists.Content()->AppendToTop(item); |
| 4328 | } else { |
| 4329 | aLists.PositionedDescendants()->AppendToTop(item); |
| 4330 | } |
| 4331 | } else if (!isSVG && disp->IsFloating(child)) { |
| 4332 | aLists.Floats()->AppendToTop( |
| 4333 | WrapInWrapList(aBuilder, child, &list, wrapListASR)); |
| 4334 | } else { |
| 4335 | aLists.Content()->AppendToTop(&list); |
| 4336 | } |
| 4337 | } |
| 4338 | // We delay placing the positioned descendants of positioned frames to here, |
| 4339 | // because in the absence of z-index this is the correct order for them. |
| 4340 | // This doesn't affect correctness because the positioned descendants list |
| 4341 | // is sorted by z-order and content in BuildDisplayListForStackingContext, |
| 4342 | // but it means that sort routine needs to do less work. |
| 4343 | aLists.PositionedDescendants()->AppendToTop(&extraPositionedDescendants); |
| 4344 | } |
| 4345 | |
| 4346 | void nsIFrame::MarkAbsoluteFramesForDisplayList( |
| 4347 | nsDisplayListBuilder* aBuilder) { |
| 4348 | if (IsAbsoluteContainer()) { |
| 4349 | aBuilder->MarkFramesForDisplayList( |
| 4350 | this, GetAbsoluteContainingBlock()->GetChildList()); |
| 4351 | } |
| 4352 | } |
| 4353 | |
| 4354 | nsresult nsIFrame::GetContentForEvent(const WidgetEvent* aEvent, |
| 4355 | nsIContent** aContent) { |
| 4356 | nsIFrame* f = nsLayoutUtils::GetNonGeneratedAncestor(this); |
| 4357 | *aContent = f->GetContent(); |
| 4358 | NS_IF_ADDREF(*aContent)ns_if_addref(*aContent); |
| 4359 | return NS_OK; |
| 4360 | } |
| 4361 | |
| 4362 | void nsIFrame::FireDOMEvent(const nsAString& aDOMEventName, |
| 4363 | nsIContent* aContent) { |
| 4364 | nsIContent* target = aContent ? aContent : GetContent(); |
| 4365 | |
| 4366 | if (target) { |
| 4367 | RefPtr<AsyncEventDispatcher> asyncDispatcher = new AsyncEventDispatcher( |
| 4368 | target, aDOMEventName, CanBubble::eYes, ChromeOnlyDispatch::eNo); |
| 4369 | DebugOnly<nsresult> rv = asyncDispatcher->PostDOMEvent(); |
| 4370 | NS_ASSERTION(NS_SUCCEEDED(rv), "AsyncEventDispatcher failed to dispatch")do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1 ))))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "AsyncEventDispatcher failed to dispatch" , "NS_SUCCEEDED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4370); MOZ_PretendNoReturn(); } } while (0); |
| 4371 | } |
| 4372 | } |
| 4373 | |
| 4374 | nsresult nsIFrame::HandleEvent(nsPresContext* aPresContext, |
| 4375 | WidgetGUIEvent* aEvent, |
| 4376 | nsEventStatus* aEventStatus) { |
| 4377 | if (aEvent->mMessage == eMouseMove) { |
| 4378 | // XXX If the second argument of HandleDrag() is WidgetMouseEvent, |
| 4379 | // the implementation becomes simpler. |
| 4380 | return HandleDrag(aPresContext, aEvent, aEventStatus); |
| 4381 | } |
| 4382 | |
| 4383 | if ((aEvent->mClass == eMouseEventClass && |
| 4384 | aEvent->AsMouseEvent()->mButton == MouseButton::ePrimary) || |
| 4385 | aEvent->mClass == eTouchEventClass) { |
| 4386 | if (aEvent->mMessage == eMouseDown || aEvent->mMessage == eTouchStart) { |
| 4387 | HandlePress(aPresContext, aEvent, aEventStatus); |
| 4388 | } else if (aEvent->mMessage == eMouseUp || aEvent->mMessage == eTouchEnd) { |
| 4389 | HandleRelease(aPresContext, aEvent, aEventStatus); |
| 4390 | } |
| 4391 | return NS_OK; |
| 4392 | } |
| 4393 | |
| 4394 | // When secondary buttion is down, we need to move selection to make users |
| 4395 | // possible to paste something at click point quickly. |
| 4396 | // When middle button is down, we need to just move selection and focus at |
| 4397 | // the clicked point. Note that even if middle click paste is not enabled, |
| 4398 | // Chrome moves selection at middle mouse button down. So, we should follow |
| 4399 | // the behavior for the compatibility. |
| 4400 | if (aEvent->mMessage == eMouseDown) { |
| 4401 | WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent(); |
| 4402 | if (mouseEvent && (mouseEvent->mButton == MouseButton::eSecondary || |
| 4403 | mouseEvent->mButton == MouseButton::eMiddle)) { |
| 4404 | if (*aEventStatus == nsEventStatus_eConsumeNoDefault) { |
| 4405 | return NS_OK; |
| 4406 | } |
| 4407 | return MoveCaretToEventPoint(aPresContext, mouseEvent, aEventStatus); |
| 4408 | } |
| 4409 | } |
| 4410 | |
| 4411 | return NS_OK; |
| 4412 | } |
| 4413 | |
| 4414 | nsresult nsIFrame::GetDataForTableSelection( |
| 4415 | const nsFrameSelection* aFrameSelection, mozilla::PresShell* aPresShell, |
| 4416 | WidgetMouseEvent* aMouseEvent, nsIContent** aParentContent, |
| 4417 | int32_t* aContentOffset, TableSelectionMode* aTarget) { |
| 4418 | if (!aFrameSelection || !aPresShell || !aMouseEvent || !aParentContent || |
| 4419 | !aContentOffset || !aTarget) |
| 4420 | return NS_ERROR_NULL_POINTER; |
| 4421 | |
| 4422 | *aParentContent = nullptr; |
| 4423 | *aContentOffset = 0; |
| 4424 | *aTarget = TableSelectionMode::None; |
| 4425 | |
| 4426 | int16_t displaySelection = aPresShell->GetSelectionFlags(); |
| 4427 | |
| 4428 | bool selectingTableCells = aFrameSelection->IsInTableSelectionMode(); |
| 4429 | |
| 4430 | // DISPLAY_ALL means we're in an editor. |
| 4431 | // If already in cell selection mode, |
| 4432 | // continue selecting with mouse drag or end on mouse up, |
| 4433 | // or when using shift key to extend block of cells |
| 4434 | // (Mouse down does normal selection unless Ctrl/Cmd is pressed) |
| 4435 | bool doTableSelection = |
| 4436 | displaySelection == nsISelectionDisplay::DISPLAY_ALL && |
| 4437 | selectingTableCells && |
| 4438 | (aMouseEvent->mMessage == eMouseMove || |
| 4439 | (aMouseEvent->mMessage == eMouseUp && |
| 4440 | aMouseEvent->mButton == MouseButton::ePrimary) || |
| 4441 | aMouseEvent->IsShift()); |
| 4442 | |
| 4443 | if (!doTableSelection) { |
| 4444 | // In Browser, special 'table selection' key must be pressed for table |
| 4445 | // selection or when just Shift is pressed and we're already in table/cell |
| 4446 | // selection mode |
| 4447 | #ifdef XP_MACOSX |
| 4448 | doTableSelection = aMouseEvent->IsMeta() || |
| 4449 | (aMouseEvent->IsShift() && selectingTableCells); |
| 4450 | #else |
| 4451 | doTableSelection = aMouseEvent->IsControl() || |
| 4452 | (aMouseEvent->IsShift() && selectingTableCells); |
| 4453 | #endif |
| 4454 | } |
| 4455 | if (!doTableSelection) return NS_OK; |
| 4456 | |
| 4457 | // Get the cell frame or table frame (or parent) of the current content node |
| 4458 | nsIFrame* frame = this; |
| 4459 | bool foundCell = false; |
| 4460 | bool foundTable = false; |
| 4461 | |
| 4462 | // Get the limiting node to stop parent frame search |
| 4463 | nsIContent* limiter = aFrameSelection->GetLimiter(); |
| 4464 | |
| 4465 | // If our content node is an ancestor of the limiting node, |
| 4466 | // we should stop the search right now. |
| 4467 | if (limiter && limiter->IsInclusiveDescendantOf(GetContent())) return NS_OK; |
| 4468 | |
| 4469 | // We don't initiate row/col selection from here now, |
| 4470 | // but we may in future |
| 4471 | // bool selectColumn = false; |
| 4472 | // bool selectRow = false; |
| 4473 | |
| 4474 | while (frame) { |
| 4475 | // Check for a table cell by querying to a known CellFrame interface |
| 4476 | nsITableCellLayout* cellElement = do_QueryFrame(frame); |
| 4477 | if (cellElement) { |
| 4478 | foundCell = true; |
| 4479 | // TODO: If we want to use proximity to top or left border |
| 4480 | // for row and column selection, this is the place to do it |
| 4481 | break; |
| 4482 | } else { |
| 4483 | // If not a cell, check for table |
| 4484 | // This will happen when starting frame is the table or child of a table, |
| 4485 | // such as a row (we were inbetween cells or in table border) |
| 4486 | nsTableWrapperFrame* tableFrame = do_QueryFrame(frame); |
| 4487 | if (tableFrame) { |
| 4488 | foundTable = true; |
| 4489 | // TODO: How can we select row when along left table edge |
| 4490 | // or select column when along top edge? |
| 4491 | break; |
| 4492 | } else { |
| 4493 | frame = frame->GetParent(); |
| 4494 | // Stop if we have hit the selection's limiting content node |
| 4495 | if (frame && frame->GetContent() == limiter) break; |
| 4496 | } |
| 4497 | } |
| 4498 | } |
| 4499 | // We aren't in a cell or table |
| 4500 | if (!foundCell && !foundTable) return NS_OK; |
| 4501 | |
| 4502 | nsIContent* tableOrCellContent = frame->GetContent(); |
| 4503 | if (!tableOrCellContent) return NS_ERROR_FAILURE; |
| 4504 | |
| 4505 | nsCOMPtr<nsIContent> parentContent = tableOrCellContent->GetParent(); |
| 4506 | if (!parentContent) return NS_ERROR_FAILURE; |
| 4507 | |
| 4508 | const int32_t offset = |
| 4509 | parentContent->ComputeIndexOf_Deprecated(tableOrCellContent); |
| 4510 | // Not likely? |
| 4511 | if (offset < 0) { |
| 4512 | return NS_ERROR_FAILURE; |
| 4513 | } |
| 4514 | |
| 4515 | // Everything is OK -- set the return values |
| 4516 | parentContent.forget(aParentContent); |
| 4517 | |
| 4518 | *aContentOffset = offset; |
| 4519 | |
| 4520 | #if 0 |
| 4521 | if (selectRow) |
| 4522 | *aTarget = TableSelectionMode::Row; |
| 4523 | else if (selectColumn) |
| 4524 | *aTarget = TableSelectionMode::Column; |
| 4525 | else |
| 4526 | #endif |
| 4527 | if (foundCell) { |
| 4528 | *aTarget = TableSelectionMode::Cell; |
| 4529 | } else if (foundTable) { |
| 4530 | *aTarget = TableSelectionMode::Table; |
| 4531 | } |
| 4532 | |
| 4533 | return NS_OK; |
| 4534 | } |
| 4535 | |
| 4536 | static bool IsEditingHost(const nsIFrame* aFrame) { |
| 4537 | nsIContent* content = aFrame->GetContent(); |
| 4538 | return content && content->IsEditingHost(); |
| 4539 | } |
| 4540 | |
| 4541 | static StyleUserSelect UsedUserSelect(const nsIFrame* aFrame) { |
| 4542 | if (aFrame->IsGeneratedContentFrame()) { |
| 4543 | return StyleUserSelect::None; |
| 4544 | } |
| 4545 | |
| 4546 | // Per https://drafts.csswg.org/css-ui-4/#content-selection: |
| 4547 | // |
| 4548 | // The used value is the same as the computed value, except: |
| 4549 | // |
| 4550 | // 1 - on editable elements where the used value is always 'contain' |
| 4551 | // regardless of the computed value |
| 4552 | // 2 - when the computed value is auto, in which case the used value is one |
| 4553 | // of the other values... |
| 4554 | // |
| 4555 | // See https://github.com/w3c/csswg-drafts/issues/3344 to see why we do this |
| 4556 | // at used-value time instead of at computed-value time. |
| 4557 | |
| 4558 | if (aFrame->IsTextInputFrame() || IsEditingHost(aFrame)) { |
| 4559 | // We don't implement 'contain' itself, but we make 'text' behave as |
| 4560 | // 'contain' for contenteditable and <input> / <textarea> elements anyway so |
| 4561 | // this is ok. |
| 4562 | return StyleUserSelect::Text; |
| 4563 | } |
| 4564 | |
| 4565 | auto style = aFrame->Style()->UserSelect(); |
| 4566 | if (style != StyleUserSelect::Auto) { |
| 4567 | return style; |
| 4568 | } |
| 4569 | |
| 4570 | auto* parent = nsLayoutUtils::GetParentOrPlaceholderFor(aFrame); |
| 4571 | return parent ? UsedUserSelect(parent) : StyleUserSelect::Text; |
| 4572 | } |
| 4573 | |
| 4574 | bool nsIFrame::IsSelectable(StyleUserSelect* aSelectStyle) const { |
| 4575 | auto style = UsedUserSelect(this); |
| 4576 | if (aSelectStyle) { |
| 4577 | *aSelectStyle = style; |
| 4578 | } |
| 4579 | return style != StyleUserSelect::None; |
| 4580 | } |
| 4581 | |
| 4582 | bool nsIFrame::ShouldHaveLineIfEmpty() const { |
| 4583 | if (Style()->IsPseudoOrAnonBox() && |
| 4584 | Style()->GetPseudoType() != PseudoStyleType::scrolledContent) { |
| 4585 | return false; |
| 4586 | } |
| 4587 | return IsEditingHost(this); |
| 4588 | } |
| 4589 | |
| 4590 | /** |
| 4591 | * Handles the Mouse Press Event for the frame |
| 4592 | */ |
| 4593 | NS_IMETHODIMPnsresult |
| 4594 | nsIFrame::HandlePress(nsPresContext* aPresContext, WidgetGUIEvent* aEvent, |
| 4595 | nsEventStatus* aEventStatus) { |
| 4596 | NS_ENSURE_ARG_POINTER(aEventStatus)do { if ((__builtin_expect(!!(!(aEventStatus)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aEventStatus" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4596); return NS_ERROR_INVALID_POINTER; } } while (false); |
| 4597 | if (nsEventStatus_eConsumeNoDefault == *aEventStatus) { |
| 4598 | return NS_OK; |
| 4599 | } |
| 4600 | |
| 4601 | NS_ENSURE_ARG_POINTER(aEvent)do { if ((__builtin_expect(!!(!(aEvent)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aEvent" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4601); return NS_ERROR_INVALID_POINTER; } } while (false); |
| 4602 | if (aEvent->mClass == eTouchEventClass) { |
| 4603 | return NS_OK; |
| 4604 | } |
| 4605 | |
| 4606 | return MoveCaretToEventPoint(aPresContext, aEvent->AsMouseEvent(), |
| 4607 | aEventStatus); |
| 4608 | } |
| 4609 | |
| 4610 | nsresult nsIFrame::MoveCaretToEventPoint(nsPresContext* aPresContext, |
| 4611 | WidgetMouseEvent* aMouseEvent, |
| 4612 | nsEventStatus* aEventStatus) { |
| 4613 | MOZ_ASSERT(aPresContext)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPresContext)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aPresContext))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aPresContext", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4613); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPresContext" ")"); do { *((volatile int*)__null) = 4613; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4614 | MOZ_ASSERT(aMouseEvent)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMouseEvent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMouseEvent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMouseEvent", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4614); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMouseEvent" ")"); do { *((volatile int*)__null) = 4614; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4615 | MOZ_ASSERT(aMouseEvent->mMessage == eMouseDown)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMouseEvent->mMessage == eMouseDown)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aMouseEvent->mMessage == eMouseDown))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aMouseEvent->mMessage == eMouseDown" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4615); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMouseEvent->mMessage == eMouseDown" ")"); do { *((volatile int*)__null) = 4615; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4616 | MOZ_ASSERT(aEventStatus)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEventStatus)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aEventStatus))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEventStatus", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4616); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEventStatus" ")"); do { *((volatile int*)__null) = 4616; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4617 | MOZ_ASSERT(nsEventStatus_eConsumeNoDefault != *aEventStatus)do { static_assert( mozilla::detail::AssertionConditionType< decltype(nsEventStatus_eConsumeNoDefault != *aEventStatus)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(nsEventStatus_eConsumeNoDefault != *aEventStatus))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("nsEventStatus_eConsumeNoDefault != *aEventStatus" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4617); AnnotateMozCrashReason("MOZ_ASSERT" "(" "nsEventStatus_eConsumeNoDefault != *aEventStatus" ")"); do { *((volatile int*)__null) = 4617; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4618 | |
| 4619 | mozilla::PresShell* presShell = aPresContext->GetPresShell(); |
| 4620 | if (!presShell) { |
| 4621 | return NS_ERROR_FAILURE; |
| 4622 | } |
| 4623 | |
| 4624 | // We often get out of sync state issues with mousedown events that |
| 4625 | // get interrupted by alerts/dialogs. |
| 4626 | // Check with the ESM to see if we should process this one |
| 4627 | if (!aPresContext->EventStateManager()->EventStatusOK(aMouseEvent)) { |
| 4628 | return NS_OK; |
| 4629 | } |
| 4630 | |
| 4631 | const nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo( |
| 4632 | aMouseEvent, RelativeTo{this}); |
| 4633 | |
| 4634 | // When not using `alt`, and clicking on a draggable, but non-editable |
| 4635 | // element, don't do anything, and let d&d handle the event. |
| 4636 | // |
| 4637 | // See bug 48876, bug 388659 and bug 55921 for context here. |
| 4638 | // |
| 4639 | // FIXME(emilio): The .Contains(pt) check looks a bit fishy. When would it be |
| 4640 | // false given we're the event target? If it is needed, why not checking the |
| 4641 | // actual draggable node rect instead? |
| 4642 | if (!aMouseEvent->IsAlt() && GetRectRelativeToSelf().Contains(pt)) { |
| 4643 | for (nsIContent* content = mContent; content; |
| 4644 | content = content->GetFlattenedTreeParent()) { |
| 4645 | if (nsContentUtils::ContentIsDraggable(content) && |
| 4646 | !content->IsEditable()) { |
| 4647 | return NS_OK; |
| 4648 | } |
| 4649 | } |
| 4650 | } |
| 4651 | |
| 4652 | // If we are in Navigator and the click is in a draggable node, we don't want |
| 4653 | // to start selection because we don't want to interfere with a potential |
| 4654 | // drag of said node and steal all its glory. |
| 4655 | const bool isEditor = |
| 4656 | presShell->GetSelectionFlags() == nsISelectionDisplay::DISPLAY_ALL; |
| 4657 | |
| 4658 | // Don't do something if it's middle button down event. |
| 4659 | const bool isPrimaryButtonDown = |
| 4660 | aMouseEvent->mButton == MouseButton::ePrimary; |
| 4661 | |
| 4662 | // check whether style allows selection |
| 4663 | // if not, don't tell selection the mouse event even occurred. |
| 4664 | StyleUserSelect selectStyle; |
| 4665 | // check for select: none |
| 4666 | if (!IsSelectable(&selectStyle)) { |
| 4667 | return NS_OK; |
| 4668 | } |
| 4669 | |
| 4670 | if (isPrimaryButtonDown) { |
| 4671 | // If the mouse is dragged outside the nearest enclosing scrollable area |
| 4672 | // while making a selection, the area will be scrolled. To do this, capture |
| 4673 | // the mouse on the nearest scrollable frame. If there isn't a scrollable |
| 4674 | // frame, or something else is already capturing the mouse, there's no |
| 4675 | // reason to capture. |
| 4676 | if (!PresShell::GetCapturingContent()) { |
| 4677 | nsIScrollableFrame* scrollFrame = |
| 4678 | nsLayoutUtils::GetNearestScrollableFrame( |
| 4679 | this, nsLayoutUtils::SCROLLABLE_SAME_DOC | |
| 4680 | nsLayoutUtils::SCROLLABLE_INCLUDE_HIDDEN); |
| 4681 | if (scrollFrame) { |
| 4682 | nsIFrame* capturingFrame = do_QueryFrame(scrollFrame); |
| 4683 | PresShell::SetCapturingContent(capturingFrame->GetContent(), |
| 4684 | CaptureFlags::IgnoreAllowedState); |
| 4685 | } |
| 4686 | } |
| 4687 | } |
| 4688 | |
| 4689 | // XXX This is screwy; it really should use the selection frame, not the |
| 4690 | // event frame |
| 4691 | const nsFrameSelection* frameselection = |
| 4692 | selectStyle == StyleUserSelect::Text ? GetConstFrameSelection() |
| 4693 | : presShell->ConstFrameSelection(); |
| 4694 | |
| 4695 | if (!frameselection || frameselection->GetDisplaySelection() == |
| 4696 | nsISelectionController::SELECTION_OFF) { |
| 4697 | return NS_OK; // nothing to do we cannot affect selection from here |
| 4698 | } |
| 4699 | |
| 4700 | #ifdef XP_MACOSX |
| 4701 | // If Control key is pressed on macOS, it should be treated as right click. |
| 4702 | // So, don't change selection. |
| 4703 | if (aMouseEvent->IsControl()) { |
| 4704 | return NS_OK; |
| 4705 | } |
| 4706 | const bool control = aMouseEvent->IsMeta(); |
| 4707 | #else |
| 4708 | const bool control = aMouseEvent->IsControl(); |
| 4709 | #endif |
| 4710 | |
| 4711 | RefPtr<nsFrameSelection> fc = const_cast<nsFrameSelection*>(frameselection); |
| 4712 | if (isPrimaryButtonDown && aMouseEvent->mClickCount > 1) { |
| 4713 | // These methods aren't const but can't actually delete anything, |
| 4714 | // so no need for AutoWeakFrame. |
| 4715 | fc->SetDragState(true); |
| 4716 | return HandleMultiplePress(aPresContext, aMouseEvent, aEventStatus, |
| 4717 | control); |
| 4718 | } |
| 4719 | |
| 4720 | ContentOffsets offsets = GetContentOffsetsFromPoint(pt, SKIP_HIDDEN); |
| 4721 | |
| 4722 | if (!offsets.content) { |
| 4723 | return NS_ERROR_FAILURE; |
| 4724 | } |
| 4725 | |
| 4726 | if (aMouseEvent->mButton == MouseButton::eSecondary && |
| 4727 | !MovingCaretToEventPointAllowedIfSecondaryButtonEvent( |
| 4728 | *frameselection, *aMouseEvent, *offsets.content, |
| 4729 | // When we collapse selection in nsFrameSelection::TakeFocus, |
| 4730 | // we always collapse selection to the start offset. Therefore, |
| 4731 | // we can ignore the end offset here. E.g., when an <img> is clicked, |
| 4732 | // set the primary offset to after it, but the the secondary offset |
| 4733 | // may be before it, see OffsetsForSingleFrame for the detail. |
| 4734 | offsets.StartOffset())) { |
| 4735 | return NS_OK; |
| 4736 | } |
| 4737 | |
| 4738 | if (aMouseEvent->mMessage == eMouseDown && |
| 4739 | aMouseEvent->mButton == MouseButton::eMiddle && |
| 4740 | !offsets.content->IsEditable()) { |
| 4741 | // However, some users don't like the Chrome compatible behavior of |
| 4742 | // middle mouse click. They want to keep selection after starting |
| 4743 | // autoscroll. However, the selection change is important for middle |
| 4744 | // mouse past. Therefore, we should allow users to take the traditional |
| 4745 | // behavior back by themselves unless middle click paste is enabled or |
| 4746 | // autoscrolling is disabled. |
| 4747 | if (!Preferences::GetBool("middlemouse.paste", false) && |
| 4748 | Preferences::GetBool("general.autoScroll", false) && |
| 4749 | Preferences::GetBool("general.autoscroll.prevent_to_collapse_selection_" |
| 4750 | "by_middle_mouse_down", |
| 4751 | false)) { |
| 4752 | return NS_OK; |
| 4753 | } |
| 4754 | } |
| 4755 | |
| 4756 | if (isPrimaryButtonDown) { |
| 4757 | // Let Ctrl/Cmd + left mouse down do table selection instead of drag |
| 4758 | // initiation. |
| 4759 | nsCOMPtr<nsIContent> parentContent; |
| 4760 | int32_t contentOffset; |
| 4761 | TableSelectionMode target; |
| 4762 | nsresult rv = GetDataForTableSelection( |
| 4763 | frameselection, presShell, aMouseEvent, getter_AddRefs(parentContent), |
| 4764 | &contentOffset, &target); |
| 4765 | if (NS_SUCCEEDED(rv)((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1))) && parentContent) { |
| 4766 | fc->SetDragState(true); |
| 4767 | return fc->HandleTableSelection(parentContent, contentOffset, target, |
| 4768 | aMouseEvent); |
| 4769 | } |
| 4770 | } |
| 4771 | |
| 4772 | fc->SetDelayedCaretData(0); |
| 4773 | |
| 4774 | if (isPrimaryButtonDown) { |
| 4775 | // Check if any part of this frame is selected, and if the user clicked |
| 4776 | // inside the selected region, and if it's the left button. If so, we delay |
| 4777 | // starting a new selection since the user may be trying to drag the |
| 4778 | // selected region to some other app. |
| 4779 | |
| 4780 | if (GetContent() && GetContent()->IsMaybeSelected()) { |
| 4781 | bool inSelection = false; |
| 4782 | UniquePtr<SelectionDetails> details = frameselection->LookUpSelection( |
| 4783 | offsets.content, 0, offsets.EndOffset(), false); |
| 4784 | |
| 4785 | // |
| 4786 | // If there are any details, check to see if the user clicked |
| 4787 | // within any selected region of the frame. |
| 4788 | // |
| 4789 | |
| 4790 | for (SelectionDetails* curDetail = details.get(); curDetail; |
| 4791 | curDetail = curDetail->mNext.get()) { |
| 4792 | // |
| 4793 | // If the user clicked inside a selection, then just |
| 4794 | // return without doing anything. We will handle placing |
| 4795 | // the caret later on when the mouse is released. We ignore |
| 4796 | // the spellcheck, find and url formatting selections. |
| 4797 | // |
| 4798 | if (curDetail->mSelectionType != SelectionType::eSpellCheck && |
| 4799 | curDetail->mSelectionType != SelectionType::eFind && |
| 4800 | curDetail->mSelectionType != SelectionType::eURLSecondary && |
| 4801 | curDetail->mSelectionType != SelectionType::eURLStrikeout && |
| 4802 | curDetail->mSelectionType != SelectionType::eHighlight && |
| 4803 | curDetail->mStart <= offsets.StartOffset() && |
| 4804 | offsets.EndOffset() <= curDetail->mEnd) { |
| 4805 | inSelection = true; |
| 4806 | } |
| 4807 | } |
| 4808 | |
| 4809 | if (inSelection) { |
| 4810 | fc->SetDragState(false); |
| 4811 | fc->SetDelayedCaretData(aMouseEvent); |
| 4812 | return NS_OK; |
| 4813 | } |
| 4814 | } |
| 4815 | |
| 4816 | fc->SetDragState(true); |
| 4817 | } |
| 4818 | |
| 4819 | // Do not touch any nsFrame members after this point without adding |
| 4820 | // weakFrame checks. |
| 4821 | const nsFrameSelection::FocusMode focusMode = [&]() { |
| 4822 | // If "Shift" and "Ctrl" are both pressed, "Shift" is given precedence. This |
| 4823 | // mimics the old behaviour. |
| 4824 | if (aMouseEvent->IsShift()) { |
| 4825 | // If clicked in a link when focused content is editable, we should |
| 4826 | // collapse selection in the link for compatibility with Blink. |
| 4827 | if (isEditor) { |
| 4828 | for (Element* element : mContent->InclusiveAncestorsOfType<Element>()) { |
| 4829 | if (element->IsLink()) { |
| 4830 | return nsFrameSelection::FocusMode::kCollapseToNewPoint; |
| 4831 | } |
| 4832 | } |
| 4833 | } |
| 4834 | return nsFrameSelection::FocusMode::kExtendSelection; |
| 4835 | } |
| 4836 | |
| 4837 | if (isPrimaryButtonDown && control) { |
| 4838 | return nsFrameSelection::FocusMode::kMultiRangeSelection; |
| 4839 | } |
| 4840 | |
| 4841 | return nsFrameSelection::FocusMode::kCollapseToNewPoint; |
| 4842 | }(); |
| 4843 | |
| 4844 | nsresult rv = fc->HandleClick( |
| 4845 | MOZ_KnownLive(offsets.content)(offsets.content) /* bug 1636889 */, offsets.StartOffset(), |
| 4846 | offsets.EndOffset(), focusMode, offsets.associate); |
| 4847 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 4848 | return rv; |
| 4849 | } |
| 4850 | |
| 4851 | // We don't handle mouse button up if it's middle button. |
| 4852 | if (isPrimaryButtonDown && offsets.offset != offsets.secondaryOffset) { |
| 4853 | fc->MaintainSelection(); |
| 4854 | } |
| 4855 | |
| 4856 | if (isPrimaryButtonDown && isEditor && !aMouseEvent->IsShift() && |
| 4857 | (offsets.EndOffset() - offsets.StartOffset()) == 1) { |
| 4858 | // A single node is selected and we aren't extending an existing selection, |
| 4859 | // which means the user clicked directly on an object (either |
| 4860 | // `user-select: all` or a non-text node without children). Therefore, |
| 4861 | // disable selection extension during mouse moves. |
| 4862 | // XXX This is a bit hacky; shouldn't editor be able to deal with this? |
| 4863 | fc->SetDragState(false); |
| 4864 | } |
| 4865 | |
| 4866 | return NS_OK; |
| 4867 | } |
| 4868 | |
| 4869 | bool nsIFrame::MovingCaretToEventPointAllowedIfSecondaryButtonEvent( |
| 4870 | const nsFrameSelection& aFrameSelection, |
| 4871 | WidgetMouseEvent& aSecondaryButtonEvent, |
| 4872 | const nsIContent& aContentAtEventPoint, int32_t aOffsetAtEventPoint) const { |
| 4873 | MOZ_ASSERT(aSecondaryButtonEvent.mButton == MouseButton::eSecondary)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aSecondaryButtonEvent.mButton == MouseButton::eSecondary )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aSecondaryButtonEvent.mButton == MouseButton::eSecondary ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aSecondaryButtonEvent.mButton == MouseButton::eSecondary", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4873); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aSecondaryButtonEvent.mButton == MouseButton::eSecondary" ")"); do { *((volatile int*)__null) = 4873; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4874 | |
| 4875 | if (NS_WARN_IF(aOffsetAtEventPoint < 0)NS_warn_if_impl(aOffsetAtEventPoint < 0, "aOffsetAtEventPoint < 0" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4875)) { |
| 4876 | return false; |
| 4877 | } |
| 4878 | |
| 4879 | Selection* selection = aFrameSelection.GetSelection(SelectionType::eNormal); |
| 4880 | if (selection && !selection->IsCollapsed()) { |
| 4881 | // If right click in a selection range, we should not collapse selection. |
| 4882 | if (nsContentUtils::IsPointInSelection( |
| 4883 | *selection, aContentAtEventPoint, |
| 4884 | static_cast<uint32_t>(aOffsetAtEventPoint))) { |
| 4885 | return false; |
| 4886 | } |
| 4887 | |
| 4888 | if (StaticPrefs:: |
| 4889 | ui_mouse_right_click_collapse_selection_stop_if_non_collapsed_selection()) { |
| 4890 | // If currently selection is limited in an editing host, we should not |
| 4891 | // collapse selection if the clicked point is in the ancestor limiter. |
| 4892 | // Otherwise, this mouse click moves focus from the editing host to |
| 4893 | // different one or blur the editing host. In this case, we need to |
| 4894 | // update selection because keeping current selection in the editing |
| 4895 | // host looks like it's not blurred. |
| 4896 | // FIXME: If the active editing host is the document element, editor |
| 4897 | // does not set ancestor limiter properly. Fix it in the editor side. |
| 4898 | if (nsIContent* ancestorLimiter = selection->GetAncestorLimiter()) { |
| 4899 | MOZ_ASSERT(ancestorLimiter->IsEditable())do { static_assert( mozilla::detail::AssertionConditionType< decltype(ancestorLimiter->IsEditable())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(ancestorLimiter->IsEditable ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("ancestorLimiter->IsEditable()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4899); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ancestorLimiter->IsEditable()" ")"); do { *((volatile int*)__null) = 4899; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 4900 | return !aContentAtEventPoint.IsInclusiveDescendantOf(ancestorLimiter); |
| 4901 | } |
| 4902 | // If currently selection is not limited in an editing host, we should |
| 4903 | // collapse selection only when this click moves focus to an editing |
| 4904 | // host because we need to update selection in this case. |
| 4905 | if (!aContentAtEventPoint.IsEditable()) { |
| 4906 | return false; |
| 4907 | } |
| 4908 | } |
| 4909 | } |
| 4910 | |
| 4911 | return !StaticPrefs:: |
| 4912 | ui_mouse_right_click_collapse_selection_stop_if_non_editable_node() || |
| 4913 | // The user does not want to collapse selection into non-editable |
| 4914 | // content by a right button click. |
| 4915 | aContentAtEventPoint.IsEditable() || |
| 4916 | // Treat clicking in a text control as always clicked on editable |
| 4917 | // content because we want a hack only for clicking in normal text |
| 4918 | // nodes which is outside any editing hosts. |
| 4919 | aContentAtEventPoint.IsTextControlElement() || |
| 4920 | TextControlElement::FromNodeOrNull( |
| 4921 | aContentAtEventPoint.GetClosestNativeAnonymousSubtreeRoot()); |
| 4922 | } |
| 4923 | |
| 4924 | nsresult nsIFrame::SelectByTypeAtPoint(nsPresContext* aPresContext, |
| 4925 | const nsPoint& aPoint, |
| 4926 | nsSelectionAmount aBeginAmountType, |
| 4927 | nsSelectionAmount aEndAmountType, |
| 4928 | uint32_t aSelectFlags) { |
| 4929 | NS_ENSURE_ARG_POINTER(aPresContext)do { if ((__builtin_expect(!!(!(aPresContext)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aPresContext" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4929); return NS_ERROR_INVALID_POINTER; } } while (false); |
| 4930 | |
| 4931 | // No point in selecting if selection is turned off |
| 4932 | if (DetermineDisplaySelection() == nsISelectionController::SELECTION_OFF) { |
| 4933 | return NS_OK; |
| 4934 | } |
| 4935 | |
| 4936 | ContentOffsets offsets = GetContentOffsetsFromPoint(aPoint, SKIP_HIDDEN); |
| 4937 | if (!offsets.content) { |
| 4938 | return NS_ERROR_FAILURE; |
| 4939 | } |
| 4940 | |
| 4941 | int32_t offset; |
| 4942 | nsIFrame* frame = nsFrameSelection::GetFrameForNodeOffset( |
| 4943 | offsets.content, offsets.offset, offsets.associate, &offset); |
| 4944 | if (!frame) { |
| 4945 | return NS_ERROR_FAILURE; |
| 4946 | } |
| 4947 | return frame->PeekBackwardAndForward(aBeginAmountType, aEndAmountType, offset, |
| 4948 | aBeginAmountType != eSelectWord, |
| 4949 | aSelectFlags); |
| 4950 | } |
| 4951 | |
| 4952 | /** |
| 4953 | * Multiple Mouse Press -- line or paragraph selection -- for the frame. |
| 4954 | * Wouldn't it be nice if this didn't have to be hardwired into Frame code? |
| 4955 | */ |
| 4956 | NS_IMETHODIMPnsresult |
| 4957 | nsIFrame::HandleMultiplePress(nsPresContext* aPresContext, |
| 4958 | WidgetGUIEvent* aEvent, |
| 4959 | nsEventStatus* aEventStatus, bool aControlHeld) { |
| 4960 | NS_ENSURE_ARG_POINTER(aEvent)do { if ((__builtin_expect(!!(!(aEvent)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aEvent" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4960); return NS_ERROR_INVALID_POINTER; } } while (false); |
| 4961 | NS_ENSURE_ARG_POINTER(aEventStatus)do { if ((__builtin_expect(!!(!(aEventStatus)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aEventStatus" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 4961); return NS_ERROR_INVALID_POINTER; } } while (false); |
| 4962 | |
| 4963 | if (nsEventStatus_eConsumeNoDefault == *aEventStatus || |
| 4964 | DetermineDisplaySelection() == nsISelectionController::SELECTION_OFF) { |
| 4965 | return NS_OK; |
| 4966 | } |
| 4967 | |
| 4968 | // Find out whether we're doing line or paragraph selection. |
| 4969 | // If browser.triple_click_selects_paragraph is true, triple-click selects |
| 4970 | // paragraph. Otherwise, triple-click selects line, and quadruple-click |
| 4971 | // selects paragraph (on platforms that support quadruple-click). |
| 4972 | nsSelectionAmount beginAmount, endAmount; |
| 4973 | WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent(); |
| 4974 | if (!mouseEvent) { |
| 4975 | return NS_OK; |
| 4976 | } |
| 4977 | |
| 4978 | if (mouseEvent->mClickCount == 4) { |
| 4979 | beginAmount = endAmount = eSelectParagraph; |
| 4980 | } else if (mouseEvent->mClickCount == 3) { |
| 4981 | if (Preferences::GetBool("browser.triple_click_selects_paragraph")) { |
| 4982 | beginAmount = endAmount = eSelectParagraph; |
| 4983 | } else { |
| 4984 | beginAmount = eSelectBeginLine; |
| 4985 | endAmount = eSelectEndLine; |
| 4986 | } |
| 4987 | } else if (mouseEvent->mClickCount == 2) { |
| 4988 | // We only want inline frames; PeekBackwardAndForward dislikes blocks |
| 4989 | beginAmount = endAmount = eSelectWord; |
| 4990 | } else { |
| 4991 | return NS_OK; |
| 4992 | } |
| 4993 | |
| 4994 | nsPoint relPoint = nsLayoutUtils::GetEventCoordinatesRelativeTo( |
| 4995 | mouseEvent, RelativeTo{this}); |
| 4996 | return SelectByTypeAtPoint(aPresContext, relPoint, beginAmount, endAmount, |
| 4997 | (aControlHeld ? SELECT_ACCUMULATE : 0)); |
| 4998 | } |
| 4999 | |
| 5000 | nsresult nsIFrame::PeekBackwardAndForward(nsSelectionAmount aAmountBack, |
| 5001 | nsSelectionAmount aAmountForward, |
| 5002 | int32_t aStartPos, bool aJumpLines, |
| 5003 | uint32_t aSelectFlags) { |
| 5004 | nsIFrame* baseFrame = this; |
| 5005 | int32_t baseOffset = aStartPos; |
| 5006 | nsresult rv; |
| 5007 | |
| 5008 | PeekOffsetOptions peekOffsetOptions{PeekOffsetOption::StopAtScroller}; |
| 5009 | if (aJumpLines) { |
| 5010 | peekOffsetOptions += PeekOffsetOption::JumpLines; |
| 5011 | } |
| 5012 | |
| 5013 | if (aAmountBack == eSelectWord) { |
| 5014 | // To avoid selecting the previous word when at start of word, |
| 5015 | // first move one character forward. |
| 5016 | PeekOffsetStruct pos(eSelectCharacter, eDirNext, aStartPos, nsPoint(0, 0), |
| 5017 | peekOffsetOptions); |
| 5018 | rv = PeekOffset(&pos); |
| 5019 | if (NS_SUCCEEDED(rv)((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1)))) { |
| 5020 | baseFrame = pos.mResultFrame; |
| 5021 | baseOffset = pos.mContentOffset; |
| 5022 | } |
| 5023 | } |
| 5024 | |
| 5025 | // Search backward for a boundary. |
| 5026 | PeekOffsetStruct startpos(aAmountBack, eDirPrevious, baseOffset, |
| 5027 | nsPoint(0, 0), peekOffsetOptions); |
| 5028 | rv = baseFrame->PeekOffset(&startpos); |
| 5029 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 5030 | return rv; |
| 5031 | } |
| 5032 | |
| 5033 | // If the backward search stayed within the same frame, search forward from |
| 5034 | // that position for the end boundary; but if it crossed out to a sibling or |
| 5035 | // ancestor, start from the original position. |
| 5036 | if (startpos.mResultFrame == baseFrame) { |
| 5037 | baseOffset = startpos.mContentOffset; |
| 5038 | } else { |
| 5039 | baseFrame = this; |
| 5040 | baseOffset = aStartPos; |
| 5041 | } |
| 5042 | |
| 5043 | PeekOffsetStruct endpos(aAmountForward, eDirNext, baseOffset, nsPoint(0, 0), |
| 5044 | peekOffsetOptions); |
| 5045 | rv = baseFrame->PeekOffset(&endpos); |
| 5046 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 5047 | return rv; |
| 5048 | } |
| 5049 | |
| 5050 | // Keep frameSelection alive. |
| 5051 | RefPtr<nsFrameSelection> frameSelection = GetFrameSelection(); |
| 5052 | |
| 5053 | const nsFrameSelection::FocusMode focusMode = |
| 5054 | (aSelectFlags & SELECT_ACCUMULATE) |
| 5055 | ? nsFrameSelection::FocusMode::kMultiRangeSelection |
| 5056 | : nsFrameSelection::FocusMode::kCollapseToNewPoint; |
| 5057 | rv = frameSelection->HandleClick( |
| 5058 | MOZ_KnownLive(startpos.mResultContent)(startpos.mResultContent) /* bug 1636889 */, |
| 5059 | startpos.mContentOffset, startpos.mContentOffset, focusMode, |
| 5060 | CARET_ASSOCIATE_AFTER); |
| 5061 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 5062 | return rv; |
| 5063 | } |
| 5064 | |
| 5065 | rv = frameSelection->HandleClick( |
| 5066 | MOZ_KnownLive(endpos.mResultContent)(endpos.mResultContent) /* bug 1636889 */, |
| 5067 | endpos.mContentOffset, endpos.mContentOffset, |
| 5068 | nsFrameSelection::FocusMode::kExtendSelection, CARET_ASSOCIATE_BEFORE); |
| 5069 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 5070 | return rv; |
| 5071 | } |
| 5072 | if (aAmountBack == eSelectWord) { |
| 5073 | frameSelection->SetIsDoubleClickSelection(true); |
| 5074 | } |
| 5075 | |
| 5076 | // maintain selection |
| 5077 | return frameSelection->MaintainSelection(aAmountBack); |
| 5078 | } |
| 5079 | |
| 5080 | NS_IMETHODIMPnsresult nsIFrame::HandleDrag(nsPresContext* aPresContext, |
| 5081 | WidgetGUIEvent* aEvent, |
| 5082 | nsEventStatus* aEventStatus) { |
| 5083 | MOZ_ASSERT(aEvent->mClass == eMouseEventClass,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mClass == eMouseEventClass)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(aEvent->mClass == eMouseEventClass))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->mClass == eMouseEventClass" " (" "HandleDrag can only handle mouse event" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 5084); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->mClass == eMouseEventClass" ") (" "HandleDrag can only handle mouse event" ")"); do { *( (volatile int*)__null) = 5084; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) |
| 5084 | "HandleDrag can only handle mouse event")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aEvent->mClass == eMouseEventClass)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(aEvent->mClass == eMouseEventClass))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aEvent->mClass == eMouseEventClass" " (" "HandleDrag can only handle mouse event" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 5084); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aEvent->mClass == eMouseEventClass" ") (" "HandleDrag can only handle mouse event" ")"); do { *( (volatile int*)__null) = 5084; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 5085 | |
| 5086 | NS_ENSURE_ARG_POINTER(aEventStatus)do { if ((__builtin_expect(!!(!(aEventStatus)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aEventStatus" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 5086); return NS_ERROR_INVALID_POINTER; } } while (false); |
| 5087 | |
| 5088 | RefPtr<nsFrameSelection> frameselection = GetFrameSelection(); |
| 5089 | if (!frameselection) { |
| 5090 | return NS_OK; |
| 5091 | } |
| 5092 | |
| 5093 | bool mouseDown = frameselection->GetDragState(); |
| 5094 | if (!mouseDown) { |
| 5095 | return NS_OK; |
| 5096 | } |
| 5097 | |
| 5098 | nsIFrame* scrollbar = |
| 5099 | nsLayoutUtils::GetClosestFrameOfType(this, LayoutFrameType::Scrollbar); |
| 5100 | if (!scrollbar) { |
| 5101 | // XXX Do we really need to exclude non-selectable content here? |
| 5102 | // GetContentOffsetsFromPoint can handle it just fine, although some |
| 5103 | // other stuff might not like it. |
| 5104 | // NOTE: DetermineDisplaySelection() returns SELECTION_OFF for |
| 5105 | // non-selectable frames. |
| 5106 | if (DetermineDisplaySelection() == nsISelectionController::SELECTION_OFF) { |
| 5107 | return NS_OK; |
| 5108 | } |
| 5109 | } |
| 5110 | |
| 5111 | frameselection->StopAutoScrollTimer(); |
| 5112 | |
| 5113 | // Check if we are dragging in a table cell |
| 5114 | nsCOMPtr<nsIContent> parentContent; |
| 5115 | int32_t contentOffset; |
| 5116 | TableSelectionMode target; |
| 5117 | WidgetMouseEvent* mouseEvent = aEvent->AsMouseEvent(); |
| 5118 | mozilla::PresShell* presShell = aPresContext->PresShell(); |
| 5119 | nsresult result; |
| 5120 | result = GetDataForTableSelection(frameselection, presShell, mouseEvent, |
| 5121 | getter_AddRefs(parentContent), |
| 5122 | &contentOffset, &target); |
| 5123 | |
| 5124 | AutoWeakFrame weakThis = this; |
| 5125 | if (NS_SUCCEEDED(result)((bool)(__builtin_expect(!!(!NS_FAILED_impl(result)), 1))) && parentContent) { |
| 5126 | result = frameselection->HandleTableSelection(parentContent, contentOffset, |
| 5127 | target, mouseEvent); |
| 5128 | if (NS_WARN_IF(NS_FAILED(result))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(result )), 0))), "NS_FAILED(result)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 5128)) { |
| 5129 | return result; |
| 5130 | } |
| 5131 | } else { |
| 5132 | nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo(mouseEvent, |
| 5133 | RelativeTo{this}); |
| 5134 | frameselection->HandleDrag(this, pt); |
| 5135 | } |
| 5136 | |
| 5137 | // The frameselection object notifies selection listeners synchronously above |
| 5138 | // which might have killed us. |
| 5139 | if (!weakThis.IsAlive()) { |
| 5140 | return NS_OK; |
| 5141 | } |
| 5142 | |
| 5143 | // get the nearest scrollframe |
| 5144 | nsIScrollableFrame* scrollFrame = nsLayoutUtils::GetNearestScrollableFrame( |
| 5145 | this, nsLayoutUtils::SCROLLABLE_SAME_DOC | |
| 5146 | nsLayoutUtils::SCROLLABLE_INCLUDE_HIDDEN); |
| 5147 | |
| 5148 | if (scrollFrame) { |
| 5149 | nsIFrame* capturingFrame = scrollFrame->GetScrolledFrame(); |
| 5150 | if (capturingFrame) { |
| 5151 | nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo( |
| 5152 | mouseEvent, RelativeTo{capturingFrame}); |
| 5153 | frameselection->StartAutoScrollTimer(capturingFrame, pt, 30); |
| 5154 | } |
| 5155 | } |
| 5156 | |
| 5157 | return NS_OK; |
| 5158 | } |
| 5159 | |
| 5160 | /** |
| 5161 | * This static method handles part of the nsIFrame::HandleRelease in a way |
| 5162 | * which doesn't rely on the nsFrame object to stay alive. |
| 5163 | */ |
| 5164 | MOZ_CAN_RUN_SCRIPT_BOUNDARY static nsresult HandleFrameSelection( |
| 5165 | nsFrameSelection* aFrameSelection, nsIFrame::ContentOffsets& aOffsets, |
| 5166 | bool aHandleTableSel, int32_t aContentOffsetForTableSel, |
| 5167 | TableSelectionMode aTargetForTableSel, |
| 5168 | nsIContent* aParentContentForTableSel, WidgetGUIEvent* aEvent, |
| 5169 | const nsEventStatus* aEventStatus) { |
| 5170 | if (!aFrameSelection) { |
| 5171 | return NS_OK; |
| 5172 | } |
| 5173 | |
| 5174 | nsresult rv = NS_OK; |
| 5175 | |
| 5176 | if (nsEventStatus_eConsumeNoDefault != *aEventStatus) { |
| 5177 | if (!aHandleTableSel) { |
| 5178 | if (!aOffsets.content || !aFrameSelection->HasDelayedCaretData()) { |
| 5179 | return NS_ERROR_FAILURE; |
| 5180 | } |
| 5181 | |
| 5182 | // We are doing this to simulate what we would have done on HandlePress. |
| 5183 | // We didn't do it there to give the user an opportunity to drag |
| 5184 | // the text, but since they didn't drag, we want to place the |
| 5185 | // caret. |
| 5186 | // However, we'll use the mouse position from the release, since: |
| 5187 | // * it's easier |
| 5188 | // * that's the normal click position to use (although really, in |
| 5189 | // the normal case, small movements that don't count as a drag |
| 5190 | // can do selection) |
| 5191 | aFrameSelection->SetDragState(true); |
| 5192 | |
| 5193 | const nsFrameSelection::FocusMode focusMode = |
| 5194 | aFrameSelection->IsShiftDownInDelayedCaretData() |
| 5195 | ? nsFrameSelection::FocusMode::kExtendSelection |
| 5196 | : nsFrameSelection::FocusMode::kCollapseToNewPoint; |
| 5197 | rv = aFrameSelection->HandleClick( |
| 5198 | MOZ_KnownLive(aOffsets.content)(aOffsets.content) /* bug 1636889 */, |
| 5199 | aOffsets.StartOffset(), aOffsets.EndOffset(), focusMode, |
| 5200 | aOffsets.associate); |
| 5201 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 5202 | return rv; |
| 5203 | } |
| 5204 | } else if (aParentContentForTableSel) { |
| 5205 | aFrameSelection->SetDragState(false); |
| 5206 | rv = aFrameSelection->HandleTableSelection( |
| 5207 | aParentContentForTableSel, aContentOffsetForTableSel, |
| 5208 | aTargetForTableSel, aEvent->AsMouseEvent()); |
| 5209 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 5210 | return rv; |
| 5211 | } |
| 5212 | } |
| 5213 | aFrameSelection->SetDelayedCaretData(0); |
| 5214 | } |
| 5215 | |
| 5216 | aFrameSelection->SetDragState(false); |
| 5217 | aFrameSelection->StopAutoScrollTimer(); |
| 5218 | |
| 5219 | return NS_OK; |
| 5220 | } |
| 5221 | |
| 5222 | NS_IMETHODIMPnsresult nsIFrame::HandleRelease(nsPresContext* aPresContext, |
| 5223 | WidgetGUIEvent* aEvent, |
| 5224 | nsEventStatus* aEventStatus) { |
| 5225 | if (aEvent->mClass != eMouseEventClass) { |
| 5226 | return NS_OK; |
| 5227 | } |
| 5228 | |
| 5229 | nsIFrame* activeFrame = GetActiveSelectionFrame(aPresContext, this); |
| 5230 | |
| 5231 | nsCOMPtr<nsIContent> captureContent = PresShell::GetCapturingContent(); |
| 5232 | |
| 5233 | bool selectionOff = |
| 5234 | (DetermineDisplaySelection() == nsISelectionController::SELECTION_OFF); |
| 5235 | |
| 5236 | RefPtr<nsFrameSelection> frameselection; |
| 5237 | ContentOffsets offsets; |
| 5238 | nsCOMPtr<nsIContent> parentContent; |
| 5239 | int32_t contentOffsetForTableSel = 0; |
| 5240 | TableSelectionMode targetForTableSel = TableSelectionMode::None; |
| 5241 | bool handleTableSelection = true; |
| 5242 | |
| 5243 | if (!selectionOff) { |
| 5244 | frameselection = GetFrameSelection(); |
| 5245 | if (nsEventStatus_eConsumeNoDefault != *aEventStatus && frameselection) { |
| 5246 | // Check if the frameselection recorded the mouse going down. |
| 5247 | // If not, the user must have clicked in a part of the selection. |
| 5248 | // Place the caret before continuing! |
| 5249 | |
| 5250 | if (frameselection->MouseDownRecorded()) { |
| 5251 | nsPoint pt = nsLayoutUtils::GetEventCoordinatesRelativeTo( |
| 5252 | aEvent, RelativeTo{this}); |
| 5253 | offsets = GetContentOffsetsFromPoint(pt, SKIP_HIDDEN); |
| 5254 | handleTableSelection = false; |
| 5255 | } else { |
| 5256 | GetDataForTableSelection(frameselection, PresShell(), |
| 5257 | aEvent->AsMouseEvent(), |
| 5258 | getter_AddRefs(parentContent), |
| 5259 | &contentOffsetForTableSel, &targetForTableSel); |
| 5260 | } |
| 5261 | } |
| 5262 | } |
| 5263 | |
| 5264 | // We might be capturing in some other document and the event just happened to |
| 5265 | // trickle down here. Make sure that document's frame selection is notified. |
| 5266 | // Note, this may cause the current nsFrame object to be deleted, bug 336592. |
| 5267 | RefPtr<nsFrameSelection> frameSelection; |
| 5268 | if (activeFrame != this && activeFrame->DetermineDisplaySelection() != |
| 5269 | nsISelectionController::SELECTION_OFF) { |
| 5270 | frameSelection = activeFrame->GetFrameSelection(); |
| 5271 | } |
| 5272 | |
| 5273 | // Also check the selection of the capturing content which might be in a |
| 5274 | // different document. |
| 5275 | if (!frameSelection && captureContent) { |
| 5276 | if (Document* doc = captureContent->GetComposedDoc()) { |
| 5277 | mozilla::PresShell* capturingPresShell = doc->GetPresShell(); |
| 5278 | if (capturingPresShell && |
| 5279 | capturingPresShell != PresContext()->GetPresShell()) { |
| 5280 | frameSelection = capturingPresShell->FrameSelection(); |
| 5281 | } |
| 5282 | } |
| 5283 | } |
| 5284 | |
| 5285 | if (frameSelection) { |
| 5286 | AutoWeakFrame wf(this); |
| 5287 | frameSelection->SetDragState(false); |
| 5288 | frameSelection->StopAutoScrollTimer(); |
| 5289 | if (wf.IsAlive()) { |
| 5290 | nsIScrollableFrame* scrollFrame = |
| 5291 | nsLayoutUtils::GetNearestScrollableFrame( |
| 5292 | this, nsLayoutUtils::SCROLLABLE_SAME_DOC | |
| 5293 | nsLayoutUtils::SCROLLABLE_INCLUDE_HIDDEN); |
| 5294 | if (scrollFrame) { |
| 5295 | // Perform any additional scrolling needed to maintain CSS snap point |
| 5296 | // requirements when autoscrolling is over. |
| 5297 | scrollFrame->ScrollSnap(); |
| 5298 | } |
| 5299 | } |
| 5300 | } |
| 5301 | |
| 5302 | // Do not call any methods of the current object after this point!!! |
| 5303 | // The object is perhaps dead! |
| 5304 | |
| 5305 | return selectionOff ? NS_OK |
| 5306 | : HandleFrameSelection( |
| 5307 | frameselection, offsets, handleTableSelection, |
| 5308 | contentOffsetForTableSel, targetForTableSel, |
| 5309 | parentContent, aEvent, aEventStatus); |
| 5310 | } |
| 5311 | |
| 5312 | struct MOZ_STACK_CLASS FrameContentRange { |
| 5313 | FrameContentRange(nsIContent* aContent, int32_t aStart, int32_t aEnd) |
| 5314 | : content(aContent), start(aStart), end(aEnd) {} |
| 5315 | nsCOMPtr<nsIContent> content; |
| 5316 | int32_t start; |
| 5317 | int32_t end; |
| 5318 | }; |
| 5319 | |
| 5320 | // Retrieve the content offsets of a frame |
| 5321 | static FrameContentRange GetRangeForFrame(const nsIFrame* aFrame) { |
| 5322 | nsIContent* content = aFrame->GetContent(); |
| 5323 | if (!content) { |
| 5324 | NS_WARNING("Frame has no content")NS_DebugBreak(NS_DEBUG_WARNING, "Frame has no content", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 5324); |
| 5325 | return FrameContentRange(nullptr, -1, -1); |
| 5326 | } |
| 5327 | |
| 5328 | LayoutFrameType type = aFrame->Type(); |
| 5329 | if (type == LayoutFrameType::Text) { |
| 5330 | auto [offset, offsetEnd] = aFrame->GetOffsets(); |
| 5331 | return FrameContentRange(content, offset, offsetEnd); |
| 5332 | } |
| 5333 | |
| 5334 | if (type == LayoutFrameType::Br) { |
| 5335 | nsIContent* parent = content->GetParent(); |
| 5336 | const int32_t beginOffset = parent->ComputeIndexOf_Deprecated(content); |
| 5337 | return FrameContentRange(parent, beginOffset, beginOffset); |
| 5338 | } |
| 5339 | |
| 5340 | while (content->IsRootOfNativeAnonymousSubtree()) { |
| 5341 | content = content->GetParent(); |
| 5342 | } |
| 5343 | |
| 5344 | nsIContent* parent = content->GetParent(); |
| 5345 | if (aFrame->IsBlockOutside() || !parent) { |
| 5346 | return FrameContentRange(content, 0, content->GetChildCount()); |
| 5347 | } |
| 5348 | |
| 5349 | // TODO(emilio): Revise this in presence of Shadow DOM / display: contents, |
| 5350 | // it's likely that we don't want to just walk the light tree, and we need to |
| 5351 | // change the representation of FrameContentRange. |
| 5352 | const int32_t index = parent->ComputeIndexOf_Deprecated(content); |
| 5353 | MOZ_ASSERT(index >= 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(index >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(index >= 0))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("index >= 0", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 5353); AnnotateMozCrashReason("MOZ_ASSERT" "(" "index >= 0" ")"); do { *((volatile int*)__null) = 5353; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5354 | return FrameContentRange(parent, index, index + 1); |
| 5355 | } |
| 5356 | |
| 5357 | // The FrameTarget represents the closest frame to a point that can be selected |
| 5358 | // The frame is the frame represented, frameEdge says whether one end of the |
| 5359 | // frame is the result (in which case different handling is needed), and |
| 5360 | // afterFrame says which end is represented if frameEdge is true |
| 5361 | struct FrameTarget { |
| 5362 | explicit operator bool() const { return !!frame; } |
| 5363 | |
| 5364 | nsIFrame* frame = nullptr; |
| 5365 | bool frameEdge = false; |
| 5366 | bool afterFrame = false; |
| 5367 | }; |
| 5368 | |
| 5369 | // See function implementation for information |
| 5370 | static FrameTarget GetSelectionClosestFrame(nsIFrame* aFrame, |
| 5371 | const nsPoint& aPoint, |
| 5372 | uint32_t aFlags); |
| 5373 | |
| 5374 | static bool SelfIsSelectable(nsIFrame* aFrame, uint32_t aFlags) { |
| 5375 | if ((aFlags & nsIFrame::SKIP_HIDDEN) && |
| 5376 | !aFrame->StyleVisibility()->IsVisible()) { |
| 5377 | return false; |
| 5378 | } |
| 5379 | return !aFrame->IsGeneratedContentFrame() && |
| 5380 | aFrame->Style()->UserSelect() != StyleUserSelect::None; |
| 5381 | } |
| 5382 | |
| 5383 | static bool SelectionDescendToKids(nsIFrame* aFrame) { |
| 5384 | // If we are only near (not directly over) then don't traverse |
| 5385 | // frames with independent selection (e.g. text and list controls, see bug |
| 5386 | // 268497). Note that this prevents any of the users of this method from |
| 5387 | // entering form controls. |
| 5388 | // XXX We might want some way to allow using the up-arrow to go into a form |
| 5389 | // control, but the focus didn't work right anyway; it'd probably be enough |
| 5390 | // if the left and right arrows could enter textboxes (which I don't believe |
| 5391 | // they can at the moment) |
| 5392 | if (aFrame->IsTextInputFrame() || aFrame->IsListControlFrame()) { |
| 5393 | MOZ_ASSERT(aFrame->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION))do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aFrame->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aFrame->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 5393); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION)" ")"); do { *((volatile int*)__null) = 5393; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 5394 | return false; |
| 5395 | } |
| 5396 | |
| 5397 | // Failure in this assertion means a new type of frame forms the root of an |
| 5398 | // NS_FRAME_INDEPENDENT_SELECTION subtree. In such case, the condition above |
| 5399 | // should be changed to handle it. |
| 5400 | MOZ_ASSERT_IF(do { if (aFrame->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION )) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(aFrame->GetParent()->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aFrame->GetParent()->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aFrame->GetParent()->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 5402); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->GetParent()->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION)" ")"); do { *((volatile int*)__null) = 5402; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 5401 | aFrame->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION),do { if (aFrame->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION )) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(aFrame->GetParent()->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aFrame->GetParent()->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aFrame->GetParent()->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 5402); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->GetParent()->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION)" ")"); do { *((volatile int*)__null) = 5402; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false) |
| 5402 | aFrame->GetParent()->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION))do { if (aFrame->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION )) { do { static_assert( mozilla::detail::AssertionConditionType <decltype(aFrame->GetParent()->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aFrame->GetParent()->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aFrame->GetParent()->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 5402); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->GetParent()->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION)" ")"); do { *((volatile int*)__null) = 5402; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); } } while ( false); |
| 5403 | |
| 5404 | if (aFrame->IsGeneratedContentFrame()) { |
| 5405 | return false; |
| 5406 | } |
| 5407 | |
| 5408 | auto style = aFrame->Style()->UserSelect(); |
| 5409 | return style != StyleUserSelect::All && style != StyleUserSelect::None; |
| 5410 | } |
| 5411 | |
| 5412 | static FrameTarget GetSelectionClosestFrameForChild(nsIFrame* aChild, |
| 5413 | const nsPoint& aPoint, |
| 5414 | uint32_t aFlags) { |
| 5415 | nsIFrame* parent = aChild->GetParent(); |
| 5416 | if (SelectionDescendToKids(aChild)) { |
| 5417 | nsPoint pt = aPoint - aChild->GetOffsetTo(parent); |
| 5418 | return GetSelectionClosestFrame(aChild, pt, aFlags); |
| 5419 | } |
| 5420 | return FrameTarget{aChild, false, false}; |
| 5421 | } |
| 5422 | |
| 5423 | // When the cursor needs to be at the beginning of a block, it shouldn't be |
| 5424 | // before the first child. A click on a block whose first child is a block |
| 5425 | // should put the cursor in the child. The cursor shouldn't be between the |
| 5426 | // blocks, because that's not where it's expected. |
| 5427 | // Note that this method is guaranteed to succeed. |
| 5428 | static FrameTarget DrillDownToSelectionFrame(nsIFrame* aFrame, bool aEndFrame, |
| 5429 | uint32_t aFlags) { |
| 5430 | if (SelectionDescendToKids(aFrame)) { |
| 5431 | nsIFrame* result = nullptr; |
| 5432 | nsIFrame* frame = aFrame->PrincipalChildList().FirstChild(); |
| 5433 | if (!aEndFrame) { |
| 5434 | while (frame && (!SelfIsSelectable(frame, aFlags) || frame->IsEmpty())) |
| 5435 | frame = frame->GetNextSibling(); |
| 5436 | if (frame) result = frame; |
| 5437 | } else { |
| 5438 | // Because the frame tree is singly linked, to find the last frame, |
| 5439 | // we have to iterate through all the frames |
| 5440 | // XXX I have a feeling this could be slow for long blocks, although |
| 5441 | // I can't find any slowdowns |
| 5442 | while (frame) { |
| 5443 | if (!frame->IsEmpty() && SelfIsSelectable(frame, aFlags)) |
| 5444 | result = frame; |
| 5445 | frame = frame->GetNextSibling(); |
| 5446 | } |
| 5447 | } |
| 5448 | if (result) return DrillDownToSelectionFrame(result, aEndFrame, aFlags); |
| 5449 | } |
| 5450 | // If the current frame has no targetable children, target the current frame |
| 5451 | return FrameTarget{aFrame, true, aEndFrame}; |
| 5452 | } |
| 5453 | |
| 5454 | // This method finds the closest valid FrameTarget on a given line; if there is |
| 5455 | // no valid FrameTarget on the line, it returns a null FrameTarget |
| 5456 | static FrameTarget GetSelectionClosestFrameForLine( |
| 5457 | nsBlockFrame* aParent, nsBlockFrame::LineIterator aLine, |
| 5458 | const nsPoint& aPoint, uint32_t aFlags) { |
| 5459 | // Account for end of lines (any iterator from the block is valid) |
| 5460 | if (aLine == aParent->LinesEnd()) |
| 5461 | return DrillDownToSelectionFrame(aParent, true, aFlags); |
| 5462 | nsIFrame* frame = aLine->mFirstChild; |
| 5463 | nsIFrame* closestFromIStart = nullptr; |
| 5464 | nsIFrame* closestFromIEnd = nullptr; |
| 5465 | nscoord closestIStart = aLine->IStart(), closestIEnd = aLine->IEnd(); |
| 5466 | WritingMode wm = aLine->mWritingMode; |
| 5467 | LogicalPoint pt(wm, aPoint, aLine->mContainerSize); |
| 5468 | bool canSkipBr = false; |
| 5469 | bool lastFrameWasEditable = false; |
| 5470 | for (int32_t n = aLine->GetChildCount(); n; |
| 5471 | --n, frame = frame->GetNextSibling()) { |
| 5472 | // Skip brFrames. Can only skip if the line contains at least |
| 5473 | // one selectable and non-empty frame before. Also, avoid skipping brs if |
| 5474 | // the previous thing had a different editableness than us, since then we |
| 5475 | // may end up not being able to select after it if the br is the last thing |
| 5476 | // on the line. |
| 5477 | if (!SelfIsSelectable(frame, aFlags) || frame->IsEmpty() || |
| 5478 | (canSkipBr && frame->IsBrFrame() && |
| 5479 | lastFrameWasEditable == frame->GetContent()->IsEditable())) { |
| 5480 | continue; |
| 5481 | } |
| 5482 | canSkipBr = true; |
| 5483 | lastFrameWasEditable = |
| 5484 | frame->GetContent() && frame->GetContent()->IsEditable(); |
| 5485 | LogicalRect frameRect = |
| 5486 | LogicalRect(wm, frame->GetRect(), aLine->mContainerSize); |
| 5487 | if (pt.I(wm) >= frameRect.IStart(wm)) { |
| 5488 | if (pt.I(wm) < frameRect.IEnd(wm)) { |
| 5489 | return GetSelectionClosestFrameForChild(frame, aPoint, aFlags); |
| 5490 | } |
| 5491 | if (frameRect.IEnd(wm) >= closestIStart) { |
| 5492 | closestFromIStart = frame; |
| 5493 | closestIStart = frameRect.IEnd(wm); |
| 5494 | } |
| 5495 | } else { |
| 5496 | if (frameRect.IStart(wm) <= closestIEnd) { |
| 5497 | closestFromIEnd = frame; |
| 5498 | closestIEnd = frameRect.IStart(wm); |
| 5499 | } |
| 5500 | } |
| 5501 | } |
| 5502 | if (!closestFromIStart && !closestFromIEnd) { |
| 5503 | // We should only get here if there are no selectable frames on a line |
| 5504 | // XXX Do we need more elaborate handling here? |
| 5505 | return FrameTarget(); |
| 5506 | } |
| 5507 | if (closestFromIStart && |
| 5508 | (!closestFromIEnd || |
| 5509 | (abs(pt.I(wm) - closestIStart) <= abs(pt.I(wm) - closestIEnd)))) { |
| 5510 | return GetSelectionClosestFrameForChild(closestFromIStart, aPoint, aFlags); |
| 5511 | } |
| 5512 | return GetSelectionClosestFrameForChild(closestFromIEnd, aPoint, aFlags); |
| 5513 | } |
| 5514 | |
| 5515 | // This method is for the special handling we do for block frames; they're |
| 5516 | // special because they represent paragraphs and because they are organized |
| 5517 | // into lines, which have bounds that are not stored elsewhere in the |
| 5518 | // frame tree. Returns a null FrameTarget for frames which are not |
| 5519 | // blocks or blocks with no lines except editable one. |
| 5520 | static FrameTarget GetSelectionClosestFrameForBlock(nsIFrame* aFrame, |
| 5521 | const nsPoint& aPoint, |
| 5522 | uint32_t aFlags) { |
| 5523 | nsBlockFrame* bf = do_QueryFrame(aFrame); |
| 5524 | if (!bf) { |
| 5525 | return FrameTarget(); |
| 5526 | } |
| 5527 | |
| 5528 | // This code searches for the correct line |
| 5529 | nsBlockFrame::LineIterator end = bf->LinesEnd(); |
| 5530 | nsBlockFrame::LineIterator curLine = bf->LinesBegin(); |
| 5531 | nsBlockFrame::LineIterator closestLine = end; |
| 5532 | |
| 5533 | if (curLine != end) { |
| 5534 | // Convert aPoint into a LogicalPoint in the writing-mode of this block |
| 5535 | WritingMode wm = curLine->mWritingMode; |
| 5536 | LogicalPoint pt(wm, aPoint, curLine->mContainerSize); |
| 5537 | do { |
| 5538 | // Check to see if our point lies within the line's block-direction bounds |
| 5539 | nscoord BCoord = pt.B(wm) - curLine->BStart(); |
| 5540 | nscoord BSize = curLine->BSize(); |
| 5541 | if (BCoord >= 0 && BCoord < BSize) { |
| 5542 | closestLine = curLine; |
| 5543 | break; // We found the line; stop looking |
| 5544 | } |
| 5545 | if (BCoord < 0) break; |
| 5546 | ++curLine; |
| 5547 | } while (curLine != end); |
| 5548 | |
| 5549 | if (closestLine == end) { |
| 5550 | nsBlockFrame::LineIterator prevLine = curLine.prev(); |
| 5551 | nsBlockFrame::LineIterator nextLine = curLine; |
| 5552 | // Avoid empty lines |
| 5553 | while (nextLine != end && nextLine->IsEmpty()) ++nextLine; |
| 5554 | while (prevLine != end && prevLine->IsEmpty()) --prevLine; |
| 5555 | |
| 5556 | // This hidden pref dictates whether a point above or below all lines |
| 5557 | // comes up with a line or the beginning or end of the frame; 0 on |
| 5558 | // Windows, 1 on other platforms by default at the writing of this code |
| 5559 | int32_t dragOutOfFrame = |
| 5560 | Preferences::GetInt("browser.drag_out_of_frame_style"); |
| 5561 | |
| 5562 | if (prevLine == end) { |
| 5563 | if (dragOutOfFrame == 1 || nextLine == end) |
| 5564 | return DrillDownToSelectionFrame(aFrame, false, aFlags); |
| 5565 | closestLine = nextLine; |
| 5566 | } else if (nextLine == end) { |
| 5567 | if (dragOutOfFrame == 1) |
| 5568 | return DrillDownToSelectionFrame(aFrame, true, aFlags); |
| 5569 | closestLine = prevLine; |
| 5570 | } else { // Figure out which line is closer |
| 5571 | if (pt.B(wm) - prevLine->BEnd() < nextLine->BStart() - pt.B(wm)) |
| 5572 | closestLine = prevLine; |
| 5573 | else |
| 5574 | closestLine = nextLine; |
| 5575 | } |
| 5576 | } |
| 5577 | } |
| 5578 | |
| 5579 | do { |
| 5580 | if (auto target = |
| 5581 | GetSelectionClosestFrameForLine(bf, closestLine, aPoint, aFlags)) { |
| 5582 | return target; |
| 5583 | } |
| 5584 | ++closestLine; |
| 5585 | } while (closestLine != end); |
| 5586 | |
| 5587 | // Fall back to just targeting the last targetable place |
| 5588 | return DrillDownToSelectionFrame(aFrame, true, aFlags); |
| 5589 | } |
| 5590 | |
| 5591 | // Use frame edge for grid, flex, table, and non-editable images. Choose the |
| 5592 | // edge based on the point position past the frame rect. If past the middle, |
| 5593 | // caret should be at end, otherwise at start. This behavior matches Blink. |
| 5594 | // |
| 5595 | // TODO(emilio): Can we use this code path for other replaced elements other |
| 5596 | // than images? Or even all other frames? We only get there when we didn't find |
| 5597 | // selectable children... At least one XUL test fails if we make this apply to |
| 5598 | // XUL labels. Also, editable images need _not_ to use the frame edge, see |
| 5599 | // below. |
| 5600 | static bool UseFrameEdge(nsIFrame* aFrame) { |
| 5601 | if (aFrame->IsFlexOrGridContainer() || aFrame->IsTableFrame()) { |
| 5602 | return true; |
| 5603 | } |
| 5604 | const nsImageFrame* image = do_QueryFrame(aFrame); |
| 5605 | if (image && !aFrame->GetContent()->IsEditable()) { |
| 5606 | // Editable images are a special-case because editing relies on clicking on |
| 5607 | // an editable image selecting it, for it to show resizers. |
| 5608 | return true; |
| 5609 | } |
| 5610 | return false; |
| 5611 | } |
| 5612 | |
| 5613 | static FrameTarget LastResortFrameTargetForFrame(nsIFrame* aFrame, |
| 5614 | const nsPoint& aPoint) { |
| 5615 | if (!UseFrameEdge(aFrame)) { |
| 5616 | return {aFrame, false, false}; |
| 5617 | } |
| 5618 | const auto& rect = aFrame->GetRectRelativeToSelf(); |
| 5619 | nscoord reference; |
| 5620 | nscoord middle; |
| 5621 | if (aFrame->GetWritingMode().IsVertical()) { |
| 5622 | reference = aPoint.y; |
| 5623 | middle = rect.Height() / 2; |
| 5624 | } else { |
| 5625 | reference = aPoint.x; |
| 5626 | middle = rect.Width() / 2; |
| 5627 | } |
| 5628 | const bool afterFrame = reference > middle; |
| 5629 | return {aFrame, true, afterFrame}; |
| 5630 | } |
| 5631 | |
| 5632 | // GetSelectionClosestFrame is the helper function that calculates the closest |
| 5633 | // frame to the given point. |
| 5634 | // It doesn't completely account for offset styles, so needs to be used in |
| 5635 | // restricted environments. |
| 5636 | // Cannot handle overlapping frames correctly, so it should receive the output |
| 5637 | // of GetFrameForPoint |
| 5638 | // Guaranteed to return a valid FrameTarget. |
| 5639 | // aPoint is relative to aFrame. |
| 5640 | static FrameTarget GetSelectionClosestFrame(nsIFrame* aFrame, |
| 5641 | const nsPoint& aPoint, |
| 5642 | uint32_t aFlags) { |
| 5643 | // Handle blocks; if the frame isn't a block, the method fails |
| 5644 | if (auto target = GetSelectionClosestFrameForBlock(aFrame, aPoint, aFlags)) { |
| 5645 | return target; |
| 5646 | } |
| 5647 | |
| 5648 | if (nsIFrame* kid = aFrame->PrincipalChildList().FirstChild()) { |
| 5649 | // Go through all the child frames to find the closest one |
| 5650 | nsIFrame::FrameWithDistance closest = {nullptr, nscoord_MAXnscoord((1 << 30) - 1), nscoord_MAXnscoord((1 << 30) - 1)}; |
| 5651 | for (; kid; kid = kid->GetNextSibling()) { |
| 5652 | if (!SelfIsSelectable(kid, aFlags) || kid->IsEmpty()) continue; |
| 5653 | |
| 5654 | kid->FindCloserFrameForSelection(aPoint, &closest); |
| 5655 | } |
| 5656 | if (closest.mFrame) { |
| 5657 | if (closest.mFrame->IsInSVGTextSubtree()) |
| 5658 | return FrameTarget{closest.mFrame, false, false}; |
| 5659 | return GetSelectionClosestFrameForChild(closest.mFrame, aPoint, aFlags); |
| 5660 | } |
| 5661 | } |
| 5662 | |
| 5663 | return LastResortFrameTargetForFrame(aFrame, aPoint); |
| 5664 | } |
| 5665 | |
| 5666 | static nsIFrame::ContentOffsets OffsetsForSingleFrame(nsIFrame* aFrame, |
| 5667 | const nsPoint& aPoint) { |
| 5668 | nsIFrame::ContentOffsets offsets; |
| 5669 | FrameContentRange range = GetRangeForFrame(aFrame); |
| 5670 | offsets.content = range.content; |
| 5671 | // If there are continuations (meaning it's not one rectangle), this is the |
| 5672 | // best this function can do |
| 5673 | if (aFrame->GetNextContinuation() || aFrame->GetPrevContinuation()) { |
| 5674 | offsets.offset = range.start; |
| 5675 | offsets.secondaryOffset = range.end; |
| 5676 | offsets.associate = CARET_ASSOCIATE_AFTER; |
| 5677 | return offsets; |
| 5678 | } |
| 5679 | |
| 5680 | // Figure out whether the offsets should be over, after, or before the frame |
| 5681 | nsRect rect(nsPoint(0, 0), aFrame->GetSize()); |
| 5682 | |
| 5683 | bool isBlock = !aFrame->StyleDisplay()->IsInlineFlow(); |
| 5684 | bool isRtl = (aFrame->StyleVisibility()->mDirection == StyleDirection::Rtl); |
| 5685 | if ((isBlock && rect.y < aPoint.y) || |
| 5686 | (!isBlock && ((isRtl && rect.x + rect.width / 2 > aPoint.x) || |
| 5687 | (!isRtl && rect.x + rect.width / 2 < aPoint.x)))) { |
| 5688 | offsets.offset = range.end; |
| 5689 | if (rect.Contains(aPoint)) |
| 5690 | offsets.secondaryOffset = range.start; |
| 5691 | else |
| 5692 | offsets.secondaryOffset = range.end; |
| 5693 | } else { |
| 5694 | offsets.offset = range.start; |
| 5695 | if (rect.Contains(aPoint)) |
| 5696 | offsets.secondaryOffset = range.end; |
| 5697 | else |
| 5698 | offsets.secondaryOffset = range.start; |
| 5699 | } |
| 5700 | offsets.associate = offsets.offset == range.start ? CARET_ASSOCIATE_AFTER |
| 5701 | : CARET_ASSOCIATE_BEFORE; |
| 5702 | return offsets; |
| 5703 | } |
| 5704 | |
| 5705 | static nsIFrame* AdjustFrameForSelectionStyles(nsIFrame* aFrame) { |
| 5706 | nsIFrame* adjustedFrame = aFrame; |
| 5707 | for (nsIFrame* frame = aFrame; frame; frame = frame->GetParent()) { |
| 5708 | // These are the conditions that make all children not able to handle |
| 5709 | // a cursor. |
| 5710 | auto userSelect = frame->Style()->UserSelect(); |
| 5711 | if (userSelect != StyleUserSelect::Auto && |
| 5712 | userSelect != StyleUserSelect::All) { |
| 5713 | break; |
| 5714 | } |
| 5715 | if (userSelect == StyleUserSelect::All || |
| 5716 | frame->IsGeneratedContentFrame()) { |
| 5717 | adjustedFrame = frame; |
| 5718 | } |
| 5719 | } |
| 5720 | return adjustedFrame; |
| 5721 | } |
| 5722 | |
| 5723 | nsIFrame::ContentOffsets nsIFrame::GetContentOffsetsFromPoint( |
| 5724 | const nsPoint& aPoint, uint32_t aFlags) { |
| 5725 | nsIFrame* adjustedFrame; |
| 5726 | if (aFlags & IGNORE_SELECTION_STYLE) { |
| 5727 | adjustedFrame = this; |
| 5728 | } else { |
| 5729 | // This section of code deals with special selection styles. Note that |
| 5730 | // -moz-all exists, even though it doesn't need to be explicitly handled. |
| 5731 | // |
| 5732 | // The offset is forced not to end up in generated content; content offsets |
| 5733 | // cannot represent content outside of the document's content tree. |
| 5734 | |
| 5735 | adjustedFrame = AdjustFrameForSelectionStyles(this); |
| 5736 | |
| 5737 | // `user-select: all` needs special handling, because clicking on it should |
| 5738 | // lead to the whole frame being selected. |
| 5739 | if (adjustedFrame->Style()->UserSelect() == StyleUserSelect::All) { |
| 5740 | nsPoint adjustedPoint = aPoint + GetOffsetTo(adjustedFrame); |
| 5741 | return OffsetsForSingleFrame(adjustedFrame, adjustedPoint); |
| 5742 | } |
| 5743 | |
| 5744 | // For other cases, try to find a closest frame starting from the parent of |
| 5745 | // the unselectable frame |
| 5746 | if (adjustedFrame != this) { |
| 5747 | adjustedFrame = adjustedFrame->GetParent(); |
| 5748 | } |
| 5749 | } |
| 5750 | |
| 5751 | nsPoint adjustedPoint = aPoint + GetOffsetTo(adjustedFrame); |
| 5752 | |
| 5753 | FrameTarget closest = |
| 5754 | GetSelectionClosestFrame(adjustedFrame, adjustedPoint, aFlags); |
| 5755 | |
| 5756 | // If the correct offset is at one end of a frame, use offset-based |
| 5757 | // calculation method |
| 5758 | if (closest.frameEdge) { |
| 5759 | ContentOffsets offsets; |
| 5760 | FrameContentRange range = GetRangeForFrame(closest.frame); |
| 5761 | offsets.content = range.content; |
| 5762 | if (closest.afterFrame) |
| 5763 | offsets.offset = range.end; |
| 5764 | else |
| 5765 | offsets.offset = range.start; |
| 5766 | offsets.secondaryOffset = offsets.offset; |
| 5767 | offsets.associate = offsets.offset == range.start ? CARET_ASSOCIATE_AFTER |
| 5768 | : CARET_ASSOCIATE_BEFORE; |
| 5769 | return offsets; |
| 5770 | } |
| 5771 | |
| 5772 | nsPoint pt; |
| 5773 | if (closest.frame != this) { |
| 5774 | if (closest.frame->IsInSVGTextSubtree()) { |
| 5775 | pt = nsLayoutUtils::TransformAncestorPointToFrame( |
| 5776 | RelativeTo{closest.frame}, aPoint, RelativeTo{this}); |
| 5777 | } else { |
| 5778 | pt = aPoint - closest.frame->GetOffsetTo(this); |
| 5779 | } |
| 5780 | } else { |
| 5781 | pt = aPoint; |
| 5782 | } |
| 5783 | return closest.frame->CalcContentOffsetsFromFramePoint(pt); |
| 5784 | |
| 5785 | // XXX should I add some kind of offset standardization? |
| 5786 | // consider <b>xxxxx</b><i>zzzzz</i>; should any click between the last |
| 5787 | // x and first z put the cursor in the same logical position in addition |
| 5788 | // to the same visual position? |
| 5789 | } |
| 5790 | |
| 5791 | nsIFrame::ContentOffsets nsIFrame::CalcContentOffsetsFromFramePoint( |
| 5792 | const nsPoint& aPoint) { |
| 5793 | return OffsetsForSingleFrame(this, aPoint); |
| 5794 | } |
| 5795 | |
| 5796 | bool nsIFrame::AssociateImage(const StyleImage& aImage) { |
| 5797 | imgRequestProxy* req = aImage.GetImageRequest(); |
| 5798 | if (!req) { |
| 5799 | return false; |
| 5800 | } |
| 5801 | |
| 5802 | mozilla::css::ImageLoader* loader = |
| 5803 | PresContext()->Document()->StyleImageLoader(); |
| 5804 | |
| 5805 | loader->AssociateRequestToFrame(req, this); |
| 5806 | return true; |
| 5807 | } |
| 5808 | |
| 5809 | void nsIFrame::DisassociateImage(const StyleImage& aImage) { |
| 5810 | imgRequestProxy* req = aImage.GetImageRequest(); |
| 5811 | if (!req) { |
| 5812 | return; |
| 5813 | } |
| 5814 | |
| 5815 | mozilla::css::ImageLoader* loader = |
| 5816 | PresContext()->Document()->StyleImageLoader(); |
| 5817 | |
| 5818 | loader->DisassociateRequestFromFrame(req, this); |
| 5819 | } |
| 5820 | |
| 5821 | StyleImageRendering nsIFrame::UsedImageRendering() const { |
| 5822 | ComputedStyle* style; |
| 5823 | if (IsCanvasFrame()) { |
| 5824 | // XXXdholbert Maybe we should use FindCanvasBackground here (instead of |
| 5825 | // FindBackground), since we're inside an IsCanvasFrame check? Though then |
| 5826 | // we'd also have to copypaste or abstract-away the multi-part root-frame |
| 5827 | // lookup that the canvas-flavored API requires. |
| 5828 | style = nsCSSRendering::FindBackground(this); |
| 5829 | } else { |
| 5830 | style = Style(); |
| 5831 | } |
| 5832 | return style->StyleVisibility()->mImageRendering; |
| 5833 | } |
| 5834 | |
| 5835 | // The touch-action CSS property applies to: all elements except: non-replaced |
| 5836 | // inline elements, table rows, row groups, table columns, and column groups. |
| 5837 | StyleTouchAction nsIFrame::UsedTouchAction() const { |
| 5838 | if (IsLineParticipant()) { |
| 5839 | return StyleTouchAction::AUTO; |
| 5840 | } |
| 5841 | auto& disp = *StyleDisplay(); |
| 5842 | if (disp.IsInternalTableStyleExceptCell()) { |
| 5843 | return StyleTouchAction::AUTO; |
| 5844 | } |
| 5845 | return disp.mTouchAction; |
| 5846 | } |
| 5847 | |
| 5848 | Maybe<nsIFrame::Cursor> nsIFrame::GetCursor(const nsPoint&) { |
| 5849 | StyleCursorKind kind = StyleUI()->Cursor().keyword; |
| 5850 | if (kind == StyleCursorKind::Auto) { |
| 5851 | // If this is editable, I-beam cursor is better for most elements. |
| 5852 | kind = (mContent && mContent->IsEditable()) ? StyleCursorKind::Text |
| 5853 | : StyleCursorKind::Default; |
| 5854 | } |
| 5855 | if (kind == StyleCursorKind::Text && GetWritingMode().IsVertical()) { |
| 5856 | // Per CSS UI spec, UA may treat value 'text' as |
| 5857 | // 'vertical-text' for vertical text. |
| 5858 | kind = StyleCursorKind::VerticalText; |
| 5859 | } |
| 5860 | |
| 5861 | return Some(Cursor{kind, AllowCustomCursorImage::Yes}); |
| 5862 | } |
| 5863 | |
| 5864 | // Resize and incremental reflow |
| 5865 | |
| 5866 | /* virtual */ |
| 5867 | void nsIFrame::MarkIntrinsicISizesDirty() { |
| 5868 | // If we're a flex item, clear our flex-item-specific cached measurements |
| 5869 | // (which likely depended on our now-stale intrinsic isize). |
| 5870 | if (IsFlexItem()) { |
| 5871 | nsFlexContainerFrame::MarkCachedFlexMeasurementsDirty(this); |
| 5872 | } |
| 5873 | |
| 5874 | if (HasAnyStateBits(NS_FRAME_FONT_INFLATION_FLOW_ROOT)) { |
| 5875 | nsFontInflationData::MarkFontInflationDataTextDirty(this); |
| 5876 | } |
| 5877 | |
| 5878 | RemoveProperty(nsGridContainerFrame::CachedBAxisMeasurement::Prop()); |
| 5879 | } |
| 5880 | |
| 5881 | void nsIFrame::MarkSubtreeDirty() { |
| 5882 | if (HasAnyStateBits(NS_FRAME_IS_DIRTY)) { |
| 5883 | return; |
| 5884 | } |
| 5885 | // Unconditionally mark given frame dirty. |
| 5886 | AddStateBits(NS_FRAME_IS_DIRTY); |
| 5887 | |
| 5888 | // Mark all descendants dirty, unless: |
| 5889 | // - Already dirty. |
| 5890 | // - TableColGroup |
| 5891 | // - XULBox |
| 5892 | AutoTArray<nsIFrame*, 32> stack; |
| 5893 | for (const auto& childLists : ChildLists()) { |
| 5894 | for (nsIFrame* kid : childLists.mList) { |
| 5895 | stack.AppendElement(kid); |
| 5896 | } |
| 5897 | } |
| 5898 | while (!stack.IsEmpty()) { |
| 5899 | nsIFrame* f = stack.PopLastElement(); |
| 5900 | if (f->HasAnyStateBits(NS_FRAME_IS_DIRTY) || f->IsTableColGroupFrame()) { |
| 5901 | continue; |
| 5902 | } |
| 5903 | |
| 5904 | f->AddStateBits(NS_FRAME_IS_DIRTY); |
| 5905 | |
| 5906 | for (const auto& childLists : f->ChildLists()) { |
| 5907 | for (nsIFrame* kid : childLists.mList) { |
| 5908 | stack.AppendElement(kid); |
| 5909 | } |
| 5910 | } |
| 5911 | } |
| 5912 | } |
| 5913 | |
| 5914 | /* virtual */ |
| 5915 | nscoord nsIFrame::GetMinISize(gfxContext* aRenderingContext) { |
| 5916 | nscoord result = 0; |
| 5917 | DISPLAY_MIN_INLINE_SIZE(this, result)DR_intrinsic_inline_size_cookie dr_cookie(this, "Min", result ); |
| 5918 | return result; |
| 5919 | } |
| 5920 | |
| 5921 | /* virtual */ |
| 5922 | nscoord nsIFrame::GetPrefISize(gfxContext* aRenderingContext) { |
| 5923 | nscoord result = 0; |
| 5924 | DISPLAY_PREF_INLINE_SIZE(this, result)DR_intrinsic_inline_size_cookie dr_cookie(this, "Pref", result ); |
| 5925 | return result; |
| 5926 | } |
| 5927 | |
| 5928 | /* virtual */ |
| 5929 | void nsIFrame::AddInlineMinISize(gfxContext* aRenderingContext, |
| 5930 | nsIFrame::InlineMinISizeData* aData) { |
| 5931 | nscoord isize = nsLayoutUtils::IntrinsicForContainer( |
| 5932 | aRenderingContext, this, IntrinsicISizeType::MinISize); |
| 5933 | aData->DefaultAddInlineMinISize(this, isize); |
| 5934 | } |
| 5935 | |
| 5936 | /* virtual */ |
| 5937 | void nsIFrame::AddInlinePrefISize(gfxContext* aRenderingContext, |
| 5938 | nsIFrame::InlinePrefISizeData* aData) { |
| 5939 | nscoord isize = nsLayoutUtils::IntrinsicForContainer( |
| 5940 | aRenderingContext, this, IntrinsicISizeType::PrefISize); |
| 5941 | aData->DefaultAddInlinePrefISize(isize); |
| 5942 | } |
| 5943 | |
| 5944 | void nsIFrame::InlineMinISizeData::DefaultAddInlineMinISize(nsIFrame* aFrame, |
| 5945 | nscoord aISize, |
| 5946 | bool aAllowBreak) { |
| 5947 | auto parent = aFrame->GetParent(); |
| 5948 | MOZ_ASSERT(parent, "Must have a parent if we get here!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(parent)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(parent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("parent" " (" "Must have a parent if we get here!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 5948); AnnotateMozCrashReason("MOZ_ASSERT" "(" "parent" ") (" "Must have a parent if we get here!" ")"); do { *((volatile int *)__null) = 5948; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 5949 | const bool mayBreak = aAllowBreak && !aFrame->CanContinueTextRun() && |
| 5950 | !parent->Style()->ShouldSuppressLineBreak() && |
| 5951 | parent->StyleText()->WhiteSpaceCanWrap(parent); |
| 5952 | if (mayBreak) { |
| 5953 | OptionallyBreak(); |
| 5954 | } |
| 5955 | mTrailingWhitespace = 0; |
| 5956 | mSkipWhitespace = false; |
| 5957 | mCurrentLine += aISize; |
| 5958 | mAtStartOfLine = false; |
| 5959 | if (mayBreak) { |
| 5960 | OptionallyBreak(); |
| 5961 | } |
| 5962 | } |
| 5963 | |
| 5964 | void nsIFrame::InlinePrefISizeData::DefaultAddInlinePrefISize(nscoord aISize) { |
| 5965 | mCurrentLine = NSCoordSaturatingAdd(mCurrentLine, aISize); |
| 5966 | mTrailingWhitespace = 0; |
| 5967 | mSkipWhitespace = false; |
| 5968 | mLineIsEmpty = false; |
| 5969 | } |
| 5970 | |
| 5971 | void nsIFrame::InlineMinISizeData::ForceBreak() { |
| 5972 | mCurrentLine -= mTrailingWhitespace; |
| 5973 | mPrevLines = std::max(mPrevLines, mCurrentLine); |
| 5974 | mCurrentLine = mTrailingWhitespace = 0; |
| 5975 | |
| 5976 | for (uint32_t i = 0, i_end = mFloats.Length(); i != i_end; ++i) { |
| 5977 | nscoord float_min = mFloats[i].Width(); |
| 5978 | if (float_min > mPrevLines) mPrevLines = float_min; |
| 5979 | } |
| 5980 | mFloats.Clear(); |
| 5981 | mSkipWhitespace = true; |
| 5982 | } |
| 5983 | |
| 5984 | void nsIFrame::InlineMinISizeData::OptionallyBreak(nscoord aHyphenWidth) { |
| 5985 | // If we can fit more content into a smaller width by staying on this |
| 5986 | // line (because we're still at a negative offset due to negative |
| 5987 | // text-indent or negative margin), don't break. Otherwise, do the |
| 5988 | // same as ForceBreak. it doesn't really matter when we accumulate |
| 5989 | // floats. |
| 5990 | if (mCurrentLine + aHyphenWidth < 0 || mAtStartOfLine) return; |
| 5991 | mCurrentLine += aHyphenWidth; |
| 5992 | ForceBreak(); |
| 5993 | } |
| 5994 | |
| 5995 | void nsIFrame::InlinePrefISizeData::ForceBreak(StyleClear aClearType) { |
| 5996 | // If this force break is not clearing any float, we can leave all the |
| 5997 | // floats to the next force break. |
| 5998 | if (!mFloats.IsEmpty() && aClearType != StyleClear::None) { |
| 5999 | // preferred widths accumulated for floats that have already |
| 6000 | // been cleared past |
| 6001 | nscoord floats_done = 0, |
| 6002 | // preferred widths accumulated for floats that have not yet |
| 6003 | // been cleared past |
| 6004 | floats_cur_left = 0, floats_cur_right = 0; |
| 6005 | |
| 6006 | for (const FloatInfo& floatInfo : mFloats) { |
| 6007 | const nsStyleDisplay* floatDisp = floatInfo.Frame()->StyleDisplay(); |
| 6008 | StyleClear clearType = floatDisp->mClear; |
| 6009 | if (clearType == StyleClear::Left || clearType == StyleClear::Right || |
| 6010 | clearType == StyleClear::Both) { |
| 6011 | nscoord floats_cur = |
| 6012 | NSCoordSaturatingAdd(floats_cur_left, floats_cur_right); |
| 6013 | if (floats_cur > floats_done) { |
| 6014 | floats_done = floats_cur; |
| 6015 | } |
| 6016 | if (clearType != StyleClear::Right) { |
| 6017 | floats_cur_left = 0; |
| 6018 | } |
| 6019 | if (clearType != StyleClear::Left) { |
| 6020 | floats_cur_right = 0; |
| 6021 | } |
| 6022 | } |
| 6023 | |
| 6024 | StyleFloat floatStyle = floatDisp->mFloat; |
| 6025 | nscoord& floats_cur = |
| 6026 | floatStyle == StyleFloat::Left ? floats_cur_left : floats_cur_right; |
| 6027 | nscoord floatWidth = floatInfo.Width(); |
| 6028 | // Negative-width floats don't change the available space so they |
| 6029 | // shouldn't change our intrinsic line width either. |
| 6030 | floats_cur = NSCoordSaturatingAdd(floats_cur, std::max(0, floatWidth)); |
| 6031 | } |
| 6032 | |
| 6033 | nscoord floats_cur = |
| 6034 | NSCoordSaturatingAdd(floats_cur_left, floats_cur_right); |
| 6035 | if (floats_cur > floats_done) floats_done = floats_cur; |
| 6036 | |
| 6037 | mCurrentLine = NSCoordSaturatingAdd(mCurrentLine, floats_done); |
| 6038 | |
| 6039 | if (aClearType == StyleClear::Both) { |
| 6040 | mFloats.Clear(); |
| 6041 | } else { |
| 6042 | // If the break type does not clear all floats, it means there may |
| 6043 | // be some floats whose isize should contribute to the intrinsic |
| 6044 | // isize of the next line. The code here scans the current mFloats |
| 6045 | // and keeps floats which are not cleared by this break. Note that |
| 6046 | // floats may be cleared directly or indirectly. See below. |
| 6047 | nsTArray<FloatInfo> newFloats; |
| 6048 | MOZ_ASSERT(do { static_assert( mozilla::detail::AssertionConditionType< decltype(aClearType == StyleClear::Left || aClearType == StyleClear ::Right)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aClearType == StyleClear::Left || aClearType == StyleClear ::Right))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aClearType == StyleClear::Left || aClearType == StyleClear::Right" " (" "Other values should have been handled in other branches" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6050); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aClearType == StyleClear::Left || aClearType == StyleClear::Right" ") (" "Other values should have been handled in other branches" ")"); do { *((volatile int*)__null) = 6050; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6049 | aClearType == StyleClear::Left || aClearType == StyleClear::Right,do { static_assert( mozilla::detail::AssertionConditionType< decltype(aClearType == StyleClear::Left || aClearType == StyleClear ::Right)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aClearType == StyleClear::Left || aClearType == StyleClear ::Right))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aClearType == StyleClear::Left || aClearType == StyleClear::Right" " (" "Other values should have been handled in other branches" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6050); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aClearType == StyleClear::Left || aClearType == StyleClear::Right" ") (" "Other values should have been handled in other branches" ")"); do { *((volatile int*)__null) = 6050; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6050 | "Other values should have been handled in other branches")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aClearType == StyleClear::Left || aClearType == StyleClear ::Right)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aClearType == StyleClear::Left || aClearType == StyleClear ::Right))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aClearType == StyleClear::Left || aClearType == StyleClear::Right" " (" "Other values should have been handled in other branches" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6050); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aClearType == StyleClear::Left || aClearType == StyleClear::Right" ") (" "Other values should have been handled in other branches" ")"); do { *((volatile int*)__null) = 6050; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6051 | StyleFloat clearFloatType = |
| 6052 | aClearType == StyleClear::Left ? StyleFloat::Left : StyleFloat::Right; |
| 6053 | // Iterate the array in reverse so that we can stop when there are |
| 6054 | // no longer any floats we need to keep. See below. |
| 6055 | for (FloatInfo& floatInfo : Reversed(mFloats)) { |
| 6056 | const nsStyleDisplay* floatDisp = floatInfo.Frame()->StyleDisplay(); |
| 6057 | if (floatDisp->mFloat != clearFloatType) { |
| 6058 | newFloats.AppendElement(floatInfo); |
| 6059 | } else { |
| 6060 | // This is a float on the side that this break directly clears |
| 6061 | // which means we're not keeping it in mFloats. However, if |
| 6062 | // this float clears floats on the opposite side (via a value |
| 6063 | // of either 'both' or one of 'left'/'right'), any remaining |
| 6064 | // (earlier) floats on that side would be indirectly cleared |
| 6065 | // as well. Thus, we should break out of this loop and stop |
| 6066 | // considering earlier floats to be kept in mFloats. |
| 6067 | StyleClear clearType = floatDisp->mClear; |
| 6068 | if (clearType != aClearType && clearType != StyleClear::None) { |
| 6069 | break; |
| 6070 | } |
| 6071 | } |
| 6072 | } |
| 6073 | newFloats.Reverse(); |
| 6074 | mFloats = std::move(newFloats); |
| 6075 | } |
| 6076 | } |
| 6077 | |
| 6078 | mCurrentLine = |
| 6079 | NSCoordSaturatingSubtract(mCurrentLine, mTrailingWhitespace, nscoord_MAXnscoord((1 << 30) - 1)); |
| 6080 | mPrevLines = std::max(mPrevLines, mCurrentLine); |
| 6081 | mCurrentLine = mTrailingWhitespace = 0; |
| 6082 | mSkipWhitespace = true; |
| 6083 | mLineIsEmpty = true; |
| 6084 | } |
| 6085 | |
| 6086 | static nscoord ResolveMargin(const LengthPercentageOrAuto& aStyle, |
| 6087 | nscoord aPercentageBasis) { |
| 6088 | if (aStyle.IsAuto()) { |
| 6089 | return nscoord(0); |
| 6090 | } |
| 6091 | return nsLayoutUtils::ResolveToLength<false>(aStyle.AsLengthPercentage(), |
| 6092 | aPercentageBasis); |
| 6093 | } |
| 6094 | |
| 6095 | static nscoord ResolvePadding(const LengthPercentage& aStyle, |
| 6096 | nscoord aPercentageBasis) { |
| 6097 | return nsLayoutUtils::ResolveToLength<true>(aStyle, aPercentageBasis); |
| 6098 | } |
| 6099 | |
| 6100 | static nsIFrame::IntrinsicSizeOffsetData IntrinsicSizeOffsets( |
| 6101 | nsIFrame* aFrame, nscoord aPercentageBasis, bool aForISize) { |
| 6102 | nsIFrame::IntrinsicSizeOffsetData result; |
| 6103 | WritingMode wm = aFrame->GetWritingMode(); |
| 6104 | const auto& margin = aFrame->StyleMargin()->mMargin; |
| 6105 | bool verticalAxis = aForISize == wm.IsVertical(); |
| 6106 | if (verticalAxis) { |
| 6107 | result.margin += ResolveMargin(margin.Get(eSideTop), aPercentageBasis); |
| 6108 | result.margin += ResolveMargin(margin.Get(eSideBottom), aPercentageBasis); |
| 6109 | } else { |
| 6110 | result.margin += ResolveMargin(margin.Get(eSideLeft), aPercentageBasis); |
| 6111 | result.margin += ResolveMargin(margin.Get(eSideRight), aPercentageBasis); |
| 6112 | } |
| 6113 | |
| 6114 | const auto& padding = aFrame->StylePadding()->mPadding; |
| 6115 | if (verticalAxis) { |
| 6116 | result.padding += ResolvePadding(padding.Get(eSideTop), aPercentageBasis); |
| 6117 | result.padding += |
| 6118 | ResolvePadding(padding.Get(eSideBottom), aPercentageBasis); |
| 6119 | } else { |
| 6120 | result.padding += ResolvePadding(padding.Get(eSideLeft), aPercentageBasis); |
| 6121 | result.padding += ResolvePadding(padding.Get(eSideRight), aPercentageBasis); |
| 6122 | } |
| 6123 | |
| 6124 | const nsStyleBorder* styleBorder = aFrame->StyleBorder(); |
| 6125 | if (verticalAxis) { |
| 6126 | result.border += styleBorder->GetComputedBorderWidth(eSideTop); |
| 6127 | result.border += styleBorder->GetComputedBorderWidth(eSideBottom); |
| 6128 | } else { |
| 6129 | result.border += styleBorder->GetComputedBorderWidth(eSideLeft); |
| 6130 | result.border += styleBorder->GetComputedBorderWidth(eSideRight); |
| 6131 | } |
| 6132 | |
| 6133 | const nsStyleDisplay* disp = aFrame->StyleDisplay(); |
| 6134 | if (aFrame->IsThemed(disp)) { |
| 6135 | nsPresContext* presContext = aFrame->PresContext(); |
| 6136 | |
| 6137 | LayoutDeviceIntMargin border = presContext->Theme()->GetWidgetBorder( |
| 6138 | presContext->DeviceContext(), aFrame, disp->EffectiveAppearance()); |
| 6139 | result.border = presContext->DevPixelsToAppUnits( |
| 6140 | verticalAxis ? border.TopBottom() : border.LeftRight()); |
| 6141 | |
| 6142 | LayoutDeviceIntMargin padding; |
| 6143 | if (presContext->Theme()->GetWidgetPadding( |
| 6144 | presContext->DeviceContext(), aFrame, disp->EffectiveAppearance(), |
| 6145 | &padding)) { |
| 6146 | result.padding = presContext->DevPixelsToAppUnits( |
| 6147 | verticalAxis ? padding.TopBottom() : padding.LeftRight()); |
| 6148 | } |
| 6149 | } |
| 6150 | return result; |
| 6151 | } |
| 6152 | |
| 6153 | /* virtual */ nsIFrame::IntrinsicSizeOffsetData nsIFrame::IntrinsicISizeOffsets( |
| 6154 | nscoord aPercentageBasis) { |
| 6155 | return IntrinsicSizeOffsets(this, aPercentageBasis, true); |
| 6156 | } |
| 6157 | |
| 6158 | nsIFrame::IntrinsicSizeOffsetData nsIFrame::IntrinsicBSizeOffsets( |
| 6159 | nscoord aPercentageBasis) { |
| 6160 | return IntrinsicSizeOffsets(this, aPercentageBasis, false); |
| 6161 | } |
| 6162 | |
| 6163 | /* virtual */ |
| 6164 | IntrinsicSize nsIFrame::GetIntrinsicSize() { |
| 6165 | return IntrinsicSize(); // default is width/height set to eStyleUnit_None |
| 6166 | } |
| 6167 | |
| 6168 | AspectRatio nsIFrame::GetAspectRatio() const { |
| 6169 | // Per spec, 'aspect-ratio' property applies to all elements except inline |
| 6170 | // boxes and internal ruby or table boxes. |
| 6171 | // https://drafts.csswg.org/css-sizing-4/#aspect-ratio |
| 6172 | // For those frame types that don't support aspect-ratio, they must not have |
| 6173 | // the natural ratio, so this early return is fine. |
| 6174 | if (!SupportsAspectRatio()) { |
| 6175 | return AspectRatio(); |
| 6176 | } |
| 6177 | |
| 6178 | const StyleAspectRatio& aspectRatio = StylePosition()->mAspectRatio; |
| 6179 | // If aspect-ratio is zero or infinite, it's a degenerate ratio and behaves |
| 6180 | // as auto. |
| 6181 | // https://drafts.csswg.org/css-sizing-4/#valdef-aspect-ratio-ratio |
| 6182 | if (!aspectRatio.BehavesAsAuto()) { |
| 6183 | // Non-auto. Return the preferred aspect ratio from the aspect-ratio style. |
| 6184 | return aspectRatio.ratio.AsRatio().ToLayoutRatio(UseBoxSizing::Yes); |
| 6185 | } |
| 6186 | |
| 6187 | // The rest of the cases are when aspect-ratio has 'auto'. |
| 6188 | if (auto intrinsicRatio = GetIntrinsicRatio()) { |
| 6189 | return intrinsicRatio; |
| 6190 | } |
| 6191 | |
| 6192 | if (aspectRatio.HasRatio()) { |
| 6193 | // If it's a degenerate ratio, this returns 0. Just the same as the auto |
| 6194 | // case. |
| 6195 | return aspectRatio.ratio.AsRatio().ToLayoutRatio(UseBoxSizing::No); |
| 6196 | } |
| 6197 | |
| 6198 | return AspectRatio(); |
| 6199 | } |
| 6200 | |
| 6201 | /* virtual */ |
| 6202 | AspectRatio nsIFrame::GetIntrinsicRatio() const { return AspectRatio(); } |
| 6203 | |
| 6204 | static bool ShouldApplyAutomaticMinimumOnInlineAxis( |
| 6205 | WritingMode aWM, const nsStyleDisplay* aDisplay, |
| 6206 | const nsStylePosition* aPosition) { |
| 6207 | // Apply the automatic minimum size for aspect ratio: |
| 6208 | // Note: The replaced elements shouldn't be here, so we only check the scroll |
| 6209 | // container. |
| 6210 | // https://drafts.csswg.org/css-sizing-4/#aspect-ratio-minimum |
| 6211 | return !aDisplay->IsScrollableOverflow() && aPosition->MinISize(aWM).IsAuto(); |
| 6212 | } |
| 6213 | |
| 6214 | struct MinMaxSize { |
| 6215 | nscoord mMinSize = 0; |
| 6216 | nscoord mMaxSize = NS_UNCONSTRAINEDSIZEnscoord((1 << 30) - 1); |
| 6217 | |
| 6218 | nscoord ClampSizeToMinAndMax(nscoord aSize) const { |
| 6219 | return NS_CSS_MINMAX(aSize, mMinSize, mMaxSize); |
| 6220 | } |
| 6221 | }; |
| 6222 | static MinMaxSize ComputeTransferredMinMaxInlineSize( |
| 6223 | const WritingMode aWM, const AspectRatio& aAspectRatio, |
| 6224 | const MinMaxSize& aMinMaxBSize, const LogicalSize& aBoxSizingAdjustment) { |
| 6225 | // Note: the spec mentions that |
| 6226 | // 1. This transferred minimum is capped by any definite preferred or maximum |
| 6227 | // size in the destination axis. |
| 6228 | // 2. This transferred maximum is floored by any definite preferred or minimum |
| 6229 | // size in the destination axis |
| 6230 | // |
| 6231 | // https://drafts.csswg.org/css-sizing-4/#aspect-ratio |
| 6232 | // |
| 6233 | // The spec requires us to clamp these by the specified size (it calls it the |
| 6234 | // preferred size). However, we actually don't need to worry about that, |
| 6235 | // because we only use this if the inline size is indefinite. |
| 6236 | // |
| 6237 | // We do not need to clamp the transferred minimum and maximum as long as we |
| 6238 | // always apply the transferred min/max size before the explicit min/max size, |
| 6239 | // the result will be identical. |
| 6240 | |
| 6241 | MinMaxSize transferredISize; |
| 6242 | |
| 6243 | if (aMinMaxBSize.mMinSize > 0) { |
| 6244 | transferredISize.mMinSize = aAspectRatio.ComputeRatioDependentSize( |
| 6245 | LogicalAxis::eLogicalAxisInline, aWM, aMinMaxBSize.mMinSize, |
| 6246 | aBoxSizingAdjustment); |
| 6247 | } |
| 6248 | |
| 6249 | if (aMinMaxBSize.mMaxSize != NS_UNCONSTRAINEDSIZEnscoord((1 << 30) - 1)) { |
| 6250 | transferredISize.mMaxSize = aAspectRatio.ComputeRatioDependentSize( |
| 6251 | LogicalAxis::eLogicalAxisInline, aWM, aMinMaxBSize.mMaxSize, |
| 6252 | aBoxSizingAdjustment); |
| 6253 | } |
| 6254 | |
| 6255 | // Minimum size wins over maximum size. |
| 6256 | transferredISize.mMaxSize = |
| 6257 | std::max(transferredISize.mMinSize, transferredISize.mMaxSize); |
| 6258 | return transferredISize; |
| 6259 | } |
| 6260 | |
| 6261 | /* virtual */ |
| 6262 | nsIFrame::SizeComputationResult nsIFrame::ComputeSize( |
| 6263 | gfxContext* aRenderingContext, WritingMode aWM, const LogicalSize& aCBSize, |
| 6264 | nscoord aAvailableISize, const LogicalSize& aMargin, |
| 6265 | const LogicalSize& aBorderPadding, const StyleSizeOverrides& aSizeOverrides, |
| 6266 | ComputeSizeFlags aFlags) { |
| 6267 | MOZ_ASSERT(!GetIntrinsicRatio(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!GetIntrinsicRatio())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!GetIntrinsicRatio()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("!GetIntrinsicRatio()" " (" "Please override this method and call " "nsContainerFrame::ComputeSizeWithIntrinsicDimensions instead." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6269); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!GetIntrinsicRatio()" ") (" "Please override this method and call " "nsContainerFrame::ComputeSizeWithIntrinsicDimensions instead." ")"); do { *((volatile int*)__null) = 6269; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6268 | "Please override this method and call "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!GetIntrinsicRatio())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!GetIntrinsicRatio()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("!GetIntrinsicRatio()" " (" "Please override this method and call " "nsContainerFrame::ComputeSizeWithIntrinsicDimensions instead." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6269); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!GetIntrinsicRatio()" ") (" "Please override this method and call " "nsContainerFrame::ComputeSizeWithIntrinsicDimensions instead." ")"); do { *((volatile int*)__null) = 6269; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6269 | "nsContainerFrame::ComputeSizeWithIntrinsicDimensions instead.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!GetIntrinsicRatio())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!GetIntrinsicRatio()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("!GetIntrinsicRatio()" " (" "Please override this method and call " "nsContainerFrame::ComputeSizeWithIntrinsicDimensions instead." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6269); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!GetIntrinsicRatio()" ") (" "Please override this method and call " "nsContainerFrame::ComputeSizeWithIntrinsicDimensions instead." ")"); do { *((volatile int*)__null) = 6269; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6270 | LogicalSize result = |
| 6271 | ComputeAutoSize(aRenderingContext, aWM, aCBSize, aAvailableISize, aMargin, |
| 6272 | aBorderPadding, aSizeOverrides, aFlags); |
| 6273 | const nsStylePosition* stylePos = StylePosition(); |
| 6274 | const nsStyleDisplay* disp = StyleDisplay(); |
| 6275 | auto aspectRatioUsage = AspectRatioUsage::None; |
| 6276 | |
| 6277 | const auto boxSizingAdjust = stylePos->mBoxSizing == StyleBoxSizing::Border |
| 6278 | ? aBorderPadding |
| 6279 | : LogicalSize(aWM); |
| 6280 | nscoord boxSizingToMarginEdgeISize = aMargin.ISize(aWM) + |
| 6281 | aBorderPadding.ISize(aWM) - |
| 6282 | boxSizingAdjust.ISize(aWM); |
| 6283 | |
| 6284 | const auto& styleISize = aSizeOverrides.mStyleISize |
| 6285 | ? *aSizeOverrides.mStyleISize |
| 6286 | : stylePos->ISize(aWM); |
| 6287 | const auto& styleBSize = aSizeOverrides.mStyleBSize |
| 6288 | ? *aSizeOverrides.mStyleBSize |
| 6289 | : stylePos->BSize(aWM); |
| 6290 | const auto& aspectRatio = aSizeOverrides.mAspectRatio |
| 6291 | ? *aSizeOverrides.mAspectRatio |
| 6292 | : GetAspectRatio(); |
| 6293 | |
| 6294 | auto parentFrame = GetParent(); |
| 6295 | auto alignCB = parentFrame; |
| 6296 | bool isGridItem = IsGridItem(); |
| 6297 | if (parentFrame && parentFrame->IsTableWrapperFrame() && IsTableFrame()) { |
| 6298 | // An inner table frame is sized as a grid item if its table wrapper is, |
| 6299 | // because they actually have the same CB (the wrapper's CB). |
| 6300 | // @see ReflowInput::InitCBReflowInput |
| 6301 | auto tableWrapper = GetParent(); |
| 6302 | auto grandParent = tableWrapper->GetParent(); |
| 6303 | isGridItem = grandParent->IsGridContainerFrame() && |
| 6304 | !tableWrapper->HasAnyStateBits(NS_FRAME_OUT_OF_FLOW); |
| 6305 | if (isGridItem) { |
| 6306 | // When resolving justify/align-self below, we want to use the grid |
| 6307 | // container's justify/align-items value and WritingMode. |
| 6308 | alignCB = grandParent; |
| 6309 | } |
| 6310 | } |
| 6311 | const bool isFlexItem = |
| 6312 | IsFlexItem() && !parentFrame->HasAnyStateBits( |
| 6313 | NS_STATE_FLEX_IS_EMULATING_LEGACY_WEBKIT_BOX); |
| 6314 | // This variable only gets set (and used) if isFlexItem is true. It |
| 6315 | // indicates which axis (in this frame's own WM) corresponds to its |
| 6316 | // flex container's main axis. |
| 6317 | LogicalAxis flexMainAxis = |
| 6318 | eLogicalAxisInline; // (init to make valgrind happy) |
| 6319 | if (isFlexItem) { |
| 6320 | flexMainAxis = nsFlexContainerFrame::IsItemInlineAxisMainAxis(this) |
| 6321 | ? eLogicalAxisInline |
| 6322 | : eLogicalAxisBlock; |
| 6323 | } |
| 6324 | |
| 6325 | const bool isOrthogonal = aWM.IsOrthogonalTo(alignCB->GetWritingMode()); |
| 6326 | const bool isAutoISize = styleISize.IsAuto(); |
| 6327 | const bool isAutoBSize = |
| 6328 | nsLayoutUtils::IsAutoBSize(styleBSize, aCBSize.BSize(aWM)); |
| 6329 | // Compute inline-axis size |
| 6330 | if (!isAutoISize) { |
| 6331 | auto iSizeResult = ComputeISizeValue( |
| 6332 | aRenderingContext, aWM, aCBSize, boxSizingAdjust, |
| 6333 | boxSizingToMarginEdgeISize, styleISize, aSizeOverrides, aFlags); |
| 6334 | result.ISize(aWM) = iSizeResult.mISize; |
| 6335 | aspectRatioUsage = iSizeResult.mAspectRatioUsage; |
| 6336 | } else if (MOZ_UNLIKELY(isGridItem)(__builtin_expect(!!(isGridItem), 0)) && !IsTrueOverflowContainer()) { |
| 6337 | // 'auto' inline-size for grid-level box - fill the CB for 'stretch' / |
| 6338 | // 'normal' and clamp it to the CB if requested: |
| 6339 | bool stretch = false; |
| 6340 | bool mayUseAspectRatio = aspectRatio && !isAutoBSize; |
| 6341 | if (!aFlags.contains(ComputeSizeFlag::ShrinkWrap) && |
| 6342 | !StyleMargin()->HasInlineAxisAuto(aWM) && |
| 6343 | !alignCB->IsMasonry(isOrthogonal ? eLogicalAxisBlock |
| 6344 | : eLogicalAxisInline)) { |
| 6345 | auto inlineAxisAlignment = |
| 6346 | isOrthogonal ? StylePosition()->UsedAlignSelf(alignCB->Style())._0 |
| 6347 | : StylePosition()->UsedJustifySelf(alignCB->Style())._0; |
| 6348 | stretch = inlineAxisAlignment == StyleAlignFlags::STRETCH || |
| 6349 | (inlineAxisAlignment == StyleAlignFlags::NORMAL && |
| 6350 | !mayUseAspectRatio); |
| 6351 | } |
| 6352 | |
| 6353 | // Apply the preferred aspect ratio for alignments other than *stretch* and |
| 6354 | // *normal without aspect ratio*. |
| 6355 | // The spec says all other values should size the items as fit-content, and |
| 6356 | // the intrinsic size should respect the preferred aspect ratio, so we also |
| 6357 | // apply aspect ratio for all other values. |
| 6358 | // https://drafts.csswg.org/css-grid/#grid-item-sizing |
| 6359 | if (!stretch && mayUseAspectRatio) { |
| 6360 | // Note: we don't need to handle aspect ratio for inline axis if both |
| 6361 | // width/height are auto. The default ratio-dependent axis is block axis |
| 6362 | // in this case, so we can simply get the block size from the non-auto |
| 6363 | // |styleBSize|. |
| 6364 | auto bSize = nsLayoutUtils::ComputeBSizeValue( |
| 6365 | aCBSize.BSize(aWM), boxSizingAdjust.BSize(aWM), |
| 6366 | styleBSize.AsLengthPercentage()); |
| 6367 | result.ISize(aWM) = aspectRatio.ComputeRatioDependentSize( |
| 6368 | LogicalAxis::eLogicalAxisInline, aWM, bSize, boxSizingAdjust); |
| 6369 | aspectRatioUsage = AspectRatioUsage::ToComputeISize; |
| 6370 | } |
| 6371 | |
| 6372 | if (stretch || aFlags.contains(ComputeSizeFlag::IClampMarginBoxMinSize)) { |
| 6373 | auto iSizeToFillCB = |
| 6374 | std::max(nscoord(0), aCBSize.ISize(aWM) - aBorderPadding.ISize(aWM) - |
| 6375 | aMargin.ISize(aWM)); |
| 6376 | if (stretch || result.ISize(aWM) > iSizeToFillCB) { |
| 6377 | result.ISize(aWM) = iSizeToFillCB; |
| 6378 | } |
| 6379 | } |
| 6380 | } else if (aspectRatio && !isAutoBSize) { |
| 6381 | auto bSize = nsLayoutUtils::ComputeBSizeValue( |
| 6382 | aCBSize.BSize(aWM), boxSizingAdjust.BSize(aWM), |
| 6383 | styleBSize.AsLengthPercentage()); |
| 6384 | result.ISize(aWM) = aspectRatio.ComputeRatioDependentSize( |
| 6385 | LogicalAxis::eLogicalAxisInline, aWM, bSize, boxSizingAdjust); |
| 6386 | aspectRatioUsage = AspectRatioUsage::ToComputeISize; |
| 6387 | } |
| 6388 | |
| 6389 | // Calculate and apply transferred min & max size contraints. |
| 6390 | // https://drafts.csswg.org/css-sizing-4/#aspect-ratio-size-transfers |
| 6391 | // |
| 6392 | // Note: The basic principle is that sizing constraints transfer through the |
| 6393 | // aspect-ratio to the other side to preserve the aspect ratio to the extent |
| 6394 | // that they can without violating any sizes specified explicitly on that |
| 6395 | // affected axis. |
| 6396 | // |
| 6397 | // FIXME: The spec words may not be correct, so we may have to update this |
| 6398 | // tentative solution once this spec issue gets resolved. Here, we clamp the |
| 6399 | // flex base size by the transferred min and max sizes, and don't include |
| 6400 | // the transferred min & max sizes into its used min & max sizes. So this |
| 6401 | // lets us match other browsers' current behaviors. |
| 6402 | // https://github.com/w3c/csswg-drafts/issues/6071 |
| 6403 | // |
| 6404 | // Note: This may make more sense if we clamp the flex base size in |
| 6405 | // FlexItem::ResolveFlexBaseSizeFromAspectRatio(). However, the result should |
| 6406 | // be identical. FlexItem::ResolveFlexBaseSizeFromAspectRatio() only handles |
| 6407 | // the case of the definite cross size, and the definite cross size is clamped |
| 6408 | // by the min & max cross sizes below in this function. This means its flex |
| 6409 | // base size has been clamped by the transferred min & max size already after |
| 6410 | // generating the flex items. So here we make the code more general for both |
| 6411 | // definite cross size and indefinite cross size. |
| 6412 | const bool isDefiniteISize = styleISize.IsLengthPercentage(); |
| 6413 | const auto& minBSizeCoord = stylePos->MinBSize(aWM); |
| 6414 | const auto& maxBSizeCoord = stylePos->MaxBSize(aWM); |
| 6415 | const bool isAutoMinBSize = |
| 6416 | nsLayoutUtils::IsAutoBSize(minBSizeCoord, aCBSize.BSize(aWM)); |
| 6417 | const bool isAutoMaxBSize = |
| 6418 | nsLayoutUtils::IsAutoBSize(maxBSizeCoord, aCBSize.BSize(aWM)); |
| 6419 | if (aspectRatio && !isDefiniteISize) { |
| 6420 | const MinMaxSize minMaxBSize{ |
| 6421 | isAutoMinBSize ? 0 |
| 6422 | : nsLayoutUtils::ComputeBSizeValue( |
| 6423 | aCBSize.BSize(aWM), boxSizingAdjust.BSize(aWM), |
| 6424 | minBSizeCoord.AsLengthPercentage()), |
| 6425 | isAutoMaxBSize ? NS_UNCONSTRAINEDSIZEnscoord((1 << 30) - 1) |
| 6426 | : nsLayoutUtils::ComputeBSizeValue( |
| 6427 | aCBSize.BSize(aWM), boxSizingAdjust.BSize(aWM), |
| 6428 | maxBSizeCoord.AsLengthPercentage())}; |
| 6429 | MinMaxSize transferredMinMaxISize = ComputeTransferredMinMaxInlineSize( |
| 6430 | aWM, aspectRatio, minMaxBSize, boxSizingAdjust); |
| 6431 | |
| 6432 | result.ISize(aWM) = |
| 6433 | transferredMinMaxISize.ClampSizeToMinAndMax(result.ISize(aWM)); |
| 6434 | } |
| 6435 | |
| 6436 | // Flex items ignore their min & max sizing properties in their |
| 6437 | // flex container's main-axis. (Those properties get applied later in |
| 6438 | // the flexbox algorithm.) |
| 6439 | const bool isFlexItemInlineAxisMainAxis = |
| 6440 | isFlexItem && flexMainAxis == eLogicalAxisInline; |
| 6441 | const auto& maxISizeCoord = stylePos->MaxISize(aWM); |
| 6442 | nscoord maxISize = NS_UNCONSTRAINEDSIZEnscoord((1 << 30) - 1); |
| 6443 | if (!maxISizeCoord.IsNone() && !isFlexItemInlineAxisMainAxis) { |
| 6444 | maxISize = ComputeISizeValue(aRenderingContext, aWM, aCBSize, |
| 6445 | boxSizingAdjust, boxSizingToMarginEdgeISize, |
| 6446 | maxISizeCoord, aSizeOverrides, aFlags) |
| 6447 | .mISize; |
| 6448 | result.ISize(aWM) = std::min(maxISize, result.ISize(aWM)); |
| 6449 | } |
| 6450 | |
| 6451 | const auto& minISizeCoord = stylePos->MinISize(aWM); |
| 6452 | nscoord minISize; |
| 6453 | if (!minISizeCoord.IsAuto() && !isFlexItemInlineAxisMainAxis) { |
| 6454 | minISize = ComputeISizeValue(aRenderingContext, aWM, aCBSize, |
| 6455 | boxSizingAdjust, boxSizingToMarginEdgeISize, |
| 6456 | minISizeCoord, aSizeOverrides, aFlags) |
| 6457 | .mISize; |
| 6458 | } else if (MOZ_UNLIKELY((__builtin_expect(!!(aFlags.contains(ComputeSizeFlag::IApplyAutoMinSize )), 0)) |
| 6459 | aFlags.contains(ComputeSizeFlag::IApplyAutoMinSize))(__builtin_expect(!!(aFlags.contains(ComputeSizeFlag::IApplyAutoMinSize )), 0))) { |
| 6460 | // This implements "Implied Minimum Size of Grid Items". |
| 6461 | // https://drafts.csswg.org/css-grid/#min-size-auto |
| 6462 | minISize = std::min(maxISize, GetMinISize(aRenderingContext)); |
| 6463 | if (styleISize.IsLengthPercentage()) { |
| 6464 | minISize = std::min(minISize, result.ISize(aWM)); |
| 6465 | } else if (aFlags.contains(ComputeSizeFlag::IClampMarginBoxMinSize)) { |
| 6466 | // "if the grid item spans only grid tracks that have a fixed max track |
| 6467 | // sizing function, its automatic minimum size in that dimension is |
| 6468 | // further clamped to less than or equal to the size necessary to fit |
| 6469 | // its margin box within the resulting grid area (flooring at zero)" |
| 6470 | // https://drafts.csswg.org/css-grid/#min-size-auto |
| 6471 | auto maxMinISize = |
| 6472 | std::max(nscoord(0), aCBSize.ISize(aWM) - aBorderPadding.ISize(aWM) - |
| 6473 | aMargin.ISize(aWM)); |
| 6474 | minISize = std::min(minISize, maxMinISize); |
| 6475 | } |
| 6476 | } else if (aspectRatioUsage == AspectRatioUsage::ToComputeISize && |
| 6477 | ShouldApplyAutomaticMinimumOnInlineAxis(aWM, disp, stylePos)) { |
| 6478 | // This means we successfully applied aspect-ratio and now need to check |
| 6479 | // if we need to apply the implied minimum size: |
| 6480 | // https://drafts.csswg.org/css-sizing-4/#aspect-ratio-minimum |
| 6481 | MOZ_ASSERT(!HasReplacedSizing(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasReplacedSizing())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!HasReplacedSizing()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("!HasReplacedSizing()" " (" "aspect-ratio minimums should not apply to replaced elements" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6482); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasReplacedSizing()" ") (" "aspect-ratio minimums should not apply to replaced elements" ")"); do { *((volatile int*)__null) = 6482; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6482 | "aspect-ratio minimums should not apply to replaced elements")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasReplacedSizing())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!HasReplacedSizing()))), 0)) ) { do { } while (false); MOZ_ReportAssertionFailure("!HasReplacedSizing()" " (" "aspect-ratio minimums should not apply to replaced elements" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6482); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasReplacedSizing()" ") (" "aspect-ratio minimums should not apply to replaced elements" ")"); do { *((volatile int*)__null) = 6482; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6483 | // The inline size computed by aspect-ratio shouldn't less than the content |
| 6484 | // size. |
| 6485 | minISize = GetMinISize(aRenderingContext); |
| 6486 | } else { |
| 6487 | // Treat "min-width: auto" as 0. |
| 6488 | // NOTE: Technically, "auto" is supposed to behave like "min-content" on |
| 6489 | // flex items. However, we don't need to worry about that here, because |
| 6490 | // flex items' min-sizes are intentionally ignored until the flex |
| 6491 | // container explicitly considers them during space distribution. |
| 6492 | minISize = 0; |
| 6493 | } |
| 6494 | result.ISize(aWM) = std::max(minISize, result.ISize(aWM)); |
| 6495 | |
| 6496 | // Compute block-axis size |
| 6497 | // (but not if we have auto bsize -- then, we'll just stick with the bsize |
| 6498 | // that we already calculated in the initial ComputeAutoSize() call. However, |
| 6499 | // if we have a valid preferred aspect ratio, we still have to compute the |
| 6500 | // block size because aspect ratio affects the intrinsic content size.) |
| 6501 | if (!isAutoBSize) { |
| 6502 | result.BSize(aWM) = nsLayoutUtils::ComputeBSizeValue( |
| 6503 | aCBSize.BSize(aWM), boxSizingAdjust.BSize(aWM), |
| 6504 | styleBSize.AsLengthPercentage()); |
| 6505 | } else if (MOZ_UNLIKELY(isGridItem)(__builtin_expect(!!(isGridItem), 0)) && styleBSize.IsAuto() && |
| 6506 | !aFlags.contains(ComputeSizeFlag::IsGridMeasuringReflow) && |
| 6507 | !IsTrueOverflowContainer() && |
| 6508 | !alignCB->IsMasonry(isOrthogonal ? eLogicalAxisInline |
| 6509 | : eLogicalAxisBlock)) { |
| 6510 | auto cbSize = aCBSize.BSize(aWM); |
| 6511 | if (cbSize != NS_UNCONSTRAINEDSIZEnscoord((1 << 30) - 1)) { |
| 6512 | // 'auto' block-size for grid-level box - fill the CB for 'stretch' / |
| 6513 | // 'normal' and clamp it to the CB if requested: |
| 6514 | bool stretch = false; |
| 6515 | bool mayUseAspectRatio = |
| 6516 | aspectRatio && result.ISize(aWM) != NS_UNCONSTRAINEDSIZEnscoord((1 << 30) - 1); |
| 6517 | if (!StyleMargin()->HasBlockAxisAuto(aWM)) { |
| 6518 | auto blockAxisAlignment = |
| 6519 | isOrthogonal ? StylePosition()->UsedJustifySelf(alignCB->Style())._0 |
| 6520 | : StylePosition()->UsedAlignSelf(alignCB->Style())._0; |
| 6521 | stretch = blockAxisAlignment == StyleAlignFlags::STRETCH || |
| 6522 | (blockAxisAlignment == StyleAlignFlags::NORMAL && |
| 6523 | !mayUseAspectRatio); |
| 6524 | } |
| 6525 | |
| 6526 | // Apply the preferred aspect ratio for alignments other than *stretch* |
| 6527 | // and *normal without aspect ratio*. |
| 6528 | // The spec says all other values should size the items as fit-content, |
| 6529 | // and the intrinsic size should respect the preferred aspect ratio, so |
| 6530 | // we also apply aspect ratio for all other values. |
| 6531 | // https://drafts.csswg.org/css-grid/#grid-item-sizing |
| 6532 | if (!stretch && mayUseAspectRatio) { |
| 6533 | result.BSize(aWM) = aspectRatio.ComputeRatioDependentSize( |
| 6534 | LogicalAxis::eLogicalAxisBlock, aWM, result.ISize(aWM), |
| 6535 | boxSizingAdjust); |
| 6536 | MOZ_ASSERT(aspectRatioUsage == AspectRatioUsage::None)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aspectRatioUsage == AspectRatioUsage::None)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aspectRatioUsage == AspectRatioUsage::None))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aspectRatioUsage == AspectRatioUsage::None" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6536); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aspectRatioUsage == AspectRatioUsage::None" ")"); do { *((volatile int*)__null) = 6536; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6537 | aspectRatioUsage = AspectRatioUsage::ToComputeBSize; |
| 6538 | } |
| 6539 | |
| 6540 | if (stretch || aFlags.contains(ComputeSizeFlag::BClampMarginBoxMinSize)) { |
| 6541 | auto bSizeToFillCB = |
| 6542 | std::max(nscoord(0), |
| 6543 | cbSize - aBorderPadding.BSize(aWM) - aMargin.BSize(aWM)); |
| 6544 | if (stretch || (result.BSize(aWM) != NS_UNCONSTRAINEDSIZEnscoord((1 << 30) - 1) && |
| 6545 | result.BSize(aWM) > bSizeToFillCB)) { |
| 6546 | result.BSize(aWM) = bSizeToFillCB; |
| 6547 | } |
| 6548 | } |
| 6549 | } |
| 6550 | } else if (aspectRatio) { |
| 6551 | // If both inline and block dimensions are auto, the block axis is the |
| 6552 | // ratio-dependent axis by default. |
| 6553 | // If we have a super large inline size, aspect-ratio should still be |
| 6554 | // applied (so aspectRatioUsage flag is set as expected). That's why we |
| 6555 | // apply aspect-ratio unconditionally for auto block size here. |
| 6556 | result.BSize(aWM) = aspectRatio.ComputeRatioDependentSize( |
| 6557 | LogicalAxis::eLogicalAxisBlock, aWM, result.ISize(aWM), |
| 6558 | boxSizingAdjust); |
| 6559 | MOZ_ASSERT(aspectRatioUsage == AspectRatioUsage::None)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aspectRatioUsage == AspectRatioUsage::None)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aspectRatioUsage == AspectRatioUsage::None))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aspectRatioUsage == AspectRatioUsage::None" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6559); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aspectRatioUsage == AspectRatioUsage::None" ")"); do { *((volatile int*)__null) = 6559; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6560 | aspectRatioUsage = AspectRatioUsage::ToComputeBSize; |
| 6561 | } |
| 6562 | |
| 6563 | if (result.BSize(aWM) != NS_UNCONSTRAINEDSIZEnscoord((1 << 30) - 1)) { |
| 6564 | const bool isFlexItemBlockAxisMainAxis = |
| 6565 | isFlexItem && flexMainAxis == eLogicalAxisBlock; |
| 6566 | if (!isAutoMaxBSize && !isFlexItemBlockAxisMainAxis) { |
| 6567 | nscoord maxBSize = nsLayoutUtils::ComputeBSizeValue( |
| 6568 | aCBSize.BSize(aWM), boxSizingAdjust.BSize(aWM), |
| 6569 | maxBSizeCoord.AsLengthPercentage()); |
| 6570 | result.BSize(aWM) = std::min(maxBSize, result.BSize(aWM)); |
| 6571 | } |
| 6572 | |
| 6573 | if (!isAutoMinBSize && !isFlexItemBlockAxisMainAxis) { |
| 6574 | nscoord minBSize = nsLayoutUtils::ComputeBSizeValue( |
| 6575 | aCBSize.BSize(aWM), boxSizingAdjust.BSize(aWM), |
| 6576 | minBSizeCoord.AsLengthPercentage()); |
| 6577 | result.BSize(aWM) = std::max(minBSize, result.BSize(aWM)); |
| 6578 | } |
| 6579 | } |
| 6580 | |
| 6581 | if (IsThemed(disp)) { |
| 6582 | nsPresContext* pc = PresContext(); |
| 6583 | const LayoutDeviceIntSize widget = pc->Theme()->GetMinimumWidgetSize( |
| 6584 | pc, this, disp->EffectiveAppearance()); |
| 6585 | |
| 6586 | // Convert themed widget's physical dimensions to logical coords |
| 6587 | LogicalSize size(aWM, LayoutDeviceIntSize::ToAppUnits( |
| 6588 | widget, pc->AppUnitsPerDevPixel())); |
| 6589 | |
| 6590 | // GetMinimumWidgetSize() returns border-box; we need content-box. |
| 6591 | size -= aBorderPadding; |
| 6592 | |
| 6593 | if (size.BSize(aWM) > result.BSize(aWM)) { |
| 6594 | result.BSize(aWM) = size.BSize(aWM); |
| 6595 | } |
| 6596 | if (size.ISize(aWM) > result.ISize(aWM)) { |
| 6597 | result.ISize(aWM) = size.ISize(aWM); |
| 6598 | } |
| 6599 | } |
| 6600 | |
| 6601 | result.ISize(aWM) = std::max(0, result.ISize(aWM)); |
| 6602 | result.BSize(aWM) = std::max(0, result.BSize(aWM)); |
| 6603 | |
| 6604 | return {result, aspectRatioUsage}; |
| 6605 | } |
| 6606 | |
| 6607 | nsRect nsIFrame::ComputeTightBounds(DrawTarget* aDrawTarget) const { |
| 6608 | return InkOverflowRect(); |
| 6609 | } |
| 6610 | |
| 6611 | /* virtual */ |
| 6612 | nsresult nsIFrame::GetPrefWidthTightBounds(gfxContext* aContext, nscoord* aX, |
| 6613 | nscoord* aXMost) { |
| 6614 | return NS_ERROR_NOT_IMPLEMENTED; |
| 6615 | } |
| 6616 | |
| 6617 | /* virtual */ |
| 6618 | LogicalSize nsIFrame::ComputeAutoSize( |
| 6619 | gfxContext* aRenderingContext, WritingMode aWM, |
| 6620 | const mozilla::LogicalSize& aCBSize, nscoord aAvailableISize, |
| 6621 | const mozilla::LogicalSize& aMargin, |
| 6622 | const mozilla::LogicalSize& aBorderPadding, |
| 6623 | const StyleSizeOverrides& aSizeOverrides, ComputeSizeFlags aFlags) { |
| 6624 | // Use basic shrink-wrapping as a default implementation. |
| 6625 | LogicalSize result(aWM, 0xdeadbeef, NS_UNCONSTRAINEDSIZEnscoord((1 << 30) - 1)); |
| 6626 | |
| 6627 | // don't bother setting it if the result won't be used |
| 6628 | const auto& styleISize = aSizeOverrides.mStyleISize |
| 6629 | ? *aSizeOverrides.mStyleISize |
| 6630 | : StylePosition()->ISize(aWM); |
| 6631 | if (styleISize.IsAuto()) { |
| 6632 | nscoord availBased = |
| 6633 | aAvailableISize - aMargin.ISize(aWM) - aBorderPadding.ISize(aWM); |
| 6634 | result.ISize(aWM) = ShrinkISizeToFit(aRenderingContext, availBased, aFlags); |
| 6635 | } |
| 6636 | return result; |
| 6637 | } |
| 6638 | |
| 6639 | nscoord nsIFrame::ShrinkISizeToFit(gfxContext* aRenderingContext, |
| 6640 | nscoord aISizeInCB, |
| 6641 | ComputeSizeFlags aFlags) { |
| 6642 | // If we're a container for font size inflation, then shrink |
| 6643 | // wrapping inside of us should not apply font size inflation. |
| 6644 | AutoMaybeDisableFontInflation an(this); |
| 6645 | |
| 6646 | nscoord result; |
| 6647 | nscoord minISize = GetMinISize(aRenderingContext); |
| 6648 | if (minISize > aISizeInCB) { |
| 6649 | const bool clamp = aFlags.contains(ComputeSizeFlag::IClampMarginBoxMinSize); |
| 6650 | result = MOZ_UNLIKELY(clamp)(__builtin_expect(!!(clamp), 0)) ? aISizeInCB : minISize; |
| 6651 | } else { |
| 6652 | nscoord prefISize = GetPrefISize(aRenderingContext); |
| 6653 | if (prefISize > aISizeInCB) { |
| 6654 | result = aISizeInCB; |
| 6655 | } else { |
| 6656 | result = prefISize; |
| 6657 | } |
| 6658 | } |
| 6659 | return result; |
| 6660 | } |
| 6661 | |
| 6662 | Maybe<nscoord> nsIFrame::ComputeInlineSizeFromAspectRatio( |
| 6663 | WritingMode aWM, const LogicalSize& aCBSize, |
| 6664 | const LogicalSize& aContentEdgeToBoxSizing, |
| 6665 | const StyleSizeOverrides& aSizeOverrides, ComputeSizeFlags aFlags) const { |
| 6666 | // FIXME: Bug 1670151: Use GetAspectRatio() to cover replaced elements (and |
| 6667 | // then we can drop the check of eSupportsAspectRatio). |
| 6668 | const AspectRatio aspectRatio = |
| 6669 | aSizeOverrides.mAspectRatio |
| 6670 | ? *aSizeOverrides.mAspectRatio |
| 6671 | : StylePosition()->mAspectRatio.ToLayoutRatio(); |
| 6672 | if (!SupportsAspectRatio() || !aspectRatio) { |
| 6673 | return Nothing(); |
| 6674 | } |
| 6675 | |
| 6676 | const StyleSize& styleBSize = aSizeOverrides.mStyleBSize |
| 6677 | ? *aSizeOverrides.mStyleBSize |
| 6678 | : StylePosition()->BSize(aWM); |
| 6679 | if (nsLayoutUtils::IsAutoBSize(styleBSize, aCBSize.BSize(aWM))) { |
| 6680 | return Nothing(); |
| 6681 | } |
| 6682 | |
| 6683 | MOZ_ASSERT(styleBSize.IsLengthPercentage())do { static_assert( mozilla::detail::AssertionConditionType< decltype(styleBSize.IsLengthPercentage())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(styleBSize.IsLengthPercentage ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("styleBSize.IsLengthPercentage()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6683); AnnotateMozCrashReason("MOZ_ASSERT" "(" "styleBSize.IsLengthPercentage()" ")"); do { *((volatile int*)__null) = 6683; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6684 | nscoord bSize = nsLayoutUtils::ComputeBSizeValue( |
| 6685 | aCBSize.BSize(aWM), aContentEdgeToBoxSizing.BSize(aWM), |
| 6686 | styleBSize.AsLengthPercentage()); |
| 6687 | return Some(aspectRatio.ComputeRatioDependentSize( |
| 6688 | LogicalAxis::eLogicalAxisInline, aWM, bSize, aContentEdgeToBoxSizing)); |
| 6689 | } |
| 6690 | |
| 6691 | nsIFrame::ISizeComputationResult nsIFrame::ComputeISizeValue( |
| 6692 | gfxContext* aRenderingContext, const WritingMode aWM, |
| 6693 | const LogicalSize& aContainingBlockSize, |
| 6694 | const LogicalSize& aContentEdgeToBoxSizing, nscoord aBoxSizingToMarginEdge, |
| 6695 | ExtremumLength aSize, Maybe<nscoord> aAvailableISizeOverride, |
| 6696 | const StyleSizeOverrides& aSizeOverrides, ComputeSizeFlags aFlags) { |
| 6697 | // If 'this' is a container for font size inflation, then shrink |
| 6698 | // wrapping inside of it should not apply font size inflation. |
| 6699 | AutoMaybeDisableFontInflation an(this); |
| 6700 | // If we have an aspect-ratio and a definite block size, we resolve the |
| 6701 | // min-content and max-content size by the aspect-ratio and the block size. |
| 6702 | // https://github.com/w3c/csswg-drafts/issues/5032 |
| 6703 | Maybe<nscoord> intrinsicSizeFromAspectRatio = |
| 6704 | aSize == ExtremumLength::MozAvailable |
| 6705 | ? Nothing() |
| 6706 | : ComputeInlineSizeFromAspectRatio(aWM, aContainingBlockSize, |
| 6707 | aContentEdgeToBoxSizing, |
| 6708 | aSizeOverrides, aFlags); |
| 6709 | nscoord result; |
| 6710 | switch (aSize) { |
| 6711 | case ExtremumLength::MaxContent: |
| 6712 | result = intrinsicSizeFromAspectRatio ? *intrinsicSizeFromAspectRatio |
| 6713 | : GetPrefISize(aRenderingContext); |
| 6714 | NS_ASSERTION(result >= 0, "inline-size less than zero")do { if (!(result >= 0)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "inline-size less than zero", "result >= 0", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6714); MOZ_PretendNoReturn(); } } while (0); |
| 6715 | return {result, intrinsicSizeFromAspectRatio |
| 6716 | ? AspectRatioUsage::ToComputeISize |
| 6717 | : AspectRatioUsage::None}; |
| 6718 | case ExtremumLength::MinContent: |
| 6719 | result = intrinsicSizeFromAspectRatio ? *intrinsicSizeFromAspectRatio |
| 6720 | : GetMinISize(aRenderingContext); |
| 6721 | NS_ASSERTION(result >= 0, "inline-size less than zero")do { if (!(result >= 0)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "inline-size less than zero", "result >= 0", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6721); MOZ_PretendNoReturn(); } } while (0); |
| 6722 | if (MOZ_UNLIKELY((__builtin_expect(!!(aFlags.contains(ComputeSizeFlag::IClampMarginBoxMinSize )), 0)) |
| 6723 | aFlags.contains(ComputeSizeFlag::IClampMarginBoxMinSize))(__builtin_expect(!!(aFlags.contains(ComputeSizeFlag::IClampMarginBoxMinSize )), 0))) { |
| 6724 | auto available = |
| 6725 | aContainingBlockSize.ISize(aWM) - |
| 6726 | (aBoxSizingToMarginEdge + aContentEdgeToBoxSizing.ISize(aWM)); |
| 6727 | result = std::min(available, result); |
| 6728 | } |
| 6729 | return {result, intrinsicSizeFromAspectRatio |
| 6730 | ? AspectRatioUsage::ToComputeISize |
| 6731 | : AspectRatioUsage::None}; |
| 6732 | case ExtremumLength::FitContentFunction: |
| 6733 | case ExtremumLength::FitContent: { |
| 6734 | nscoord pref = NS_UNCONSTRAINEDSIZEnscoord((1 << 30) - 1); |
| 6735 | nscoord min = 0; |
| 6736 | if (intrinsicSizeFromAspectRatio) { |
| 6737 | // The min-content and max-content size are identical and equal to the |
| 6738 | // size computed from the block size and the aspect ratio. |
| 6739 | pref = min = *intrinsicSizeFromAspectRatio; |
| 6740 | } else { |
| 6741 | pref = GetPrefISize(aRenderingContext); |
| 6742 | min = GetMinISize(aRenderingContext); |
| 6743 | } |
| 6744 | |
| 6745 | nscoord fill = aAvailableISizeOverride |
| 6746 | ? *aAvailableISizeOverride |
| 6747 | : aContainingBlockSize.ISize(aWM) - |
| 6748 | (aBoxSizingToMarginEdge + |
| 6749 | aContentEdgeToBoxSizing.ISize(aWM)); |
| 6750 | |
| 6751 | if (MOZ_UNLIKELY((__builtin_expect(!!(aFlags.contains(ComputeSizeFlag::IClampMarginBoxMinSize )), 0)) |
| 6752 | aFlags.contains(ComputeSizeFlag::IClampMarginBoxMinSize))(__builtin_expect(!!(aFlags.contains(ComputeSizeFlag::IClampMarginBoxMinSize )), 0))) { |
| 6753 | min = std::min(min, fill); |
| 6754 | } |
| 6755 | result = std::max(min, std::min(pref, fill)); |
| 6756 | NS_ASSERTION(result >= 0, "inline-size less than zero")do { if (!(result >= 0)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "inline-size less than zero", "result >= 0", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6756); MOZ_PretendNoReturn(); } } while (0); |
| 6757 | return {result}; |
| 6758 | } |
| 6759 | case ExtremumLength::MozAvailable: |
| 6760 | return {aContainingBlockSize.ISize(aWM) - |
| 6761 | (aBoxSizingToMarginEdge + aContentEdgeToBoxSizing.ISize(aWM))}; |
| 6762 | } |
| 6763 | MOZ_ASSERT_UNREACHABLE("Unknown extremum length?")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 extremum length?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6763); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "Unknown extremum length?" ")"); do { *((volatile int*)__null) = 6763; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 6764 | return {}; |
| 6765 | } |
| 6766 | |
| 6767 | nscoord nsIFrame::ComputeISizeValue(const WritingMode aWM, |
| 6768 | const LogicalSize& aContainingBlockSize, |
| 6769 | const LogicalSize& aContentEdgeToBoxSizing, |
| 6770 | const LengthPercentage& aSize) { |
| 6771 | LAYOUT_WARN_IF_FALSE(do { if ((__builtin_expect(!!(mozilla::detail::log_test(sLayoutLog , mozilla::LogLevel::Warning)), 0)) && !(aContainingBlockSize .ISize(aWM) != nscoord((1 << 30) - 1))) { mozilla::detail ::LayoutLogWarning("have unconstrained inline-size; this should only result from " "very large sizes, not attempts at intrinsic inline-size " "calculation" , "aContainingBlockSize.ISize(aWM) != NS_UNCONSTRAINEDSIZE", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6775); } } while (0) |
| 6772 | aContainingBlockSize.ISize(aWM) != NS_UNCONSTRAINEDSIZE,do { if ((__builtin_expect(!!(mozilla::detail::log_test(sLayoutLog , mozilla::LogLevel::Warning)), 0)) && !(aContainingBlockSize .ISize(aWM) != nscoord((1 << 30) - 1))) { mozilla::detail ::LayoutLogWarning("have unconstrained inline-size; this should only result from " "very large sizes, not attempts at intrinsic inline-size " "calculation" , "aContainingBlockSize.ISize(aWM) != NS_UNCONSTRAINEDSIZE", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6775); } } while (0) |
| 6773 | "have unconstrained inline-size; this should only result from "do { if ((__builtin_expect(!!(mozilla::detail::log_test(sLayoutLog , mozilla::LogLevel::Warning)), 0)) && !(aContainingBlockSize .ISize(aWM) != nscoord((1 << 30) - 1))) { mozilla::detail ::LayoutLogWarning("have unconstrained inline-size; this should only result from " "very large sizes, not attempts at intrinsic inline-size " "calculation" , "aContainingBlockSize.ISize(aWM) != NS_UNCONSTRAINEDSIZE", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6775); } } while (0) |
| 6774 | "very large sizes, not attempts at intrinsic inline-size "do { if ((__builtin_expect(!!(mozilla::detail::log_test(sLayoutLog , mozilla::LogLevel::Warning)), 0)) && !(aContainingBlockSize .ISize(aWM) != nscoord((1 << 30) - 1))) { mozilla::detail ::LayoutLogWarning("have unconstrained inline-size; this should only result from " "very large sizes, not attempts at intrinsic inline-size " "calculation" , "aContainingBlockSize.ISize(aWM) != NS_UNCONSTRAINEDSIZE", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6775); } } while (0) |
| 6775 | "calculation")do { if ((__builtin_expect(!!(mozilla::detail::log_test(sLayoutLog , mozilla::LogLevel::Warning)), 0)) && !(aContainingBlockSize .ISize(aWM) != nscoord((1 << 30) - 1))) { mozilla::detail ::LayoutLogWarning("have unconstrained inline-size; this should only result from " "very large sizes, not attempts at intrinsic inline-size " "calculation" , "aContainingBlockSize.ISize(aWM) != NS_UNCONSTRAINEDSIZE", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6775); } } while (0); |
| 6776 | NS_ASSERTION(aContainingBlockSize.ISize(aWM) >= 0,do { if (!(aContainingBlockSize.ISize(aWM) >= 0)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "inline-size less than zero", "aContainingBlockSize.ISize(aWM) >= 0" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6777); MOZ_PretendNoReturn(); } } while (0) |
| 6777 | "inline-size less than zero")do { if (!(aContainingBlockSize.ISize(aWM) >= 0)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "inline-size less than zero", "aContainingBlockSize.ISize(aWM) >= 0" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6777); MOZ_PretendNoReturn(); } } while (0); |
| 6778 | |
| 6779 | nscoord result = aSize.Resolve(aContainingBlockSize.ISize(aWM)); |
| 6780 | // The result of a calc() expression might be less than 0; we |
| 6781 | // should clamp at runtime (below). (Percentages and coords that |
| 6782 | // are less than 0 have already been dropped by the parser.) |
| 6783 | result -= aContentEdgeToBoxSizing.ISize(aWM); |
| 6784 | return std::max(0, result); |
| 6785 | } |
| 6786 | |
| 6787 | void nsIFrame::DidReflow(nsPresContext* aPresContext, |
| 6788 | const ReflowInput* aReflowInput) { |
| 6789 | NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS, ("nsIFrame::DidReflow"))do { if ((int(((mozilla::LogModule*)(nsIFrame::sFrameLogModule ))->Level()) & (0x1))) { TraceMsg ("nsIFrame::DidReflow" ); } } while (0); |
| 6790 | |
| 6791 | if (IsHiddenByContentVisibilityOfInFlowParentForLayout()) { |
| 6792 | RemoveStateBits(NS_FRAME_IN_REFLOW); |
| 6793 | return; |
| 6794 | } |
| 6795 | |
| 6796 | SVGObserverUtils::InvalidateDirectRenderingObservers( |
| 6797 | this, SVGObserverUtils::INVALIDATE_REFLOW); |
| 6798 | |
| 6799 | RemoveStateBits(NS_FRAME_IN_REFLOW | NS_FRAME_FIRST_REFLOW | |
| 6800 | NS_FRAME_IS_DIRTY | NS_FRAME_HAS_DIRTY_CHILDREN); |
| 6801 | |
| 6802 | // Clear bits that were used in ReflowInput::InitResizeFlags (see |
| 6803 | // comment there for why we can't clear it there). |
| 6804 | SetHasBSizeChange(false); |
| 6805 | SetHasPaddingChange(false); |
| 6806 | |
| 6807 | // Notify the percent bsize observer if there is a percent bsize. |
| 6808 | // The observer may be able to initiate another reflow with a computed |
| 6809 | // bsize. This happens in the case where a table cell has no computed |
| 6810 | // bsize but can fabricate one when the cell bsize is known. |
| 6811 | if (aReflowInput && aReflowInput->mPercentBSizeObserver && !GetPrevInFlow()) { |
| 6812 | const auto& bsize = |
| 6813 | aReflowInput->mStylePosition->BSize(aReflowInput->GetWritingMode()); |
| 6814 | if (bsize.HasPercent()) { |
| 6815 | aReflowInput->mPercentBSizeObserver->NotifyPercentBSize(*aReflowInput); |
| 6816 | } |
| 6817 | } |
| 6818 | |
| 6819 | aPresContext->ReflowedFrame(); |
| 6820 | } |
| 6821 | |
| 6822 | void nsIFrame::FinishReflowWithAbsoluteFrames(nsPresContext* aPresContext, |
| 6823 | ReflowOutput& aDesiredSize, |
| 6824 | const ReflowInput& aReflowInput, |
| 6825 | nsReflowStatus& aStatus, |
| 6826 | bool aConstrainBSize) { |
| 6827 | ReflowAbsoluteFrames(aPresContext, aDesiredSize, aReflowInput, aStatus, |
| 6828 | aConstrainBSize); |
| 6829 | |
| 6830 | FinishAndStoreOverflow(&aDesiredSize, aReflowInput.mStyleDisplay); |
| 6831 | } |
| 6832 | |
| 6833 | void nsIFrame::ReflowAbsoluteFrames(nsPresContext* aPresContext, |
| 6834 | ReflowOutput& aDesiredSize, |
| 6835 | const ReflowInput& aReflowInput, |
| 6836 | nsReflowStatus& aStatus, |
| 6837 | bool aConstrainBSize) { |
| 6838 | if (HasAbsolutelyPositionedChildren()) { |
| 6839 | nsAbsoluteContainingBlock* absoluteContainer = GetAbsoluteContainingBlock(); |
| 6840 | |
| 6841 | // Let the absolutely positioned container reflow any absolutely positioned |
| 6842 | // child frames that need to be reflowed |
| 6843 | |
| 6844 | // The containing block for the abs pos kids is formed by our padding edge. |
| 6845 | nsMargin usedBorder = GetUsedBorder(); |
| 6846 | nscoord containingBlockWidth = |
| 6847 | std::max(0, aDesiredSize.Width() - usedBorder.LeftRight()); |
| 6848 | nscoord containingBlockHeight = |
| 6849 | std::max(0, aDesiredSize.Height() - usedBorder.TopBottom()); |
| 6850 | nsContainerFrame* container = do_QueryFrame(this); |
| 6851 | NS_ASSERTION(container,do { if (!(container)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Abs-pos children only supported on container frames for now" , "container", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6852); MOZ_PretendNoReturn(); } } while (0) |
| 6852 | "Abs-pos children only supported on container frames for now")do { if (!(container)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Abs-pos children only supported on container frames for now" , "container", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6852); MOZ_PretendNoReturn(); } } while (0); |
| 6853 | |
| 6854 | nsRect containingBlock(0, 0, containingBlockWidth, containingBlockHeight); |
| 6855 | AbsPosReflowFlags flags = |
| 6856 | AbsPosReflowFlags::CBWidthAndHeightChanged; // XXX could be optimized |
| 6857 | if (aConstrainBSize) { |
| 6858 | flags |= AbsPosReflowFlags::ConstrainHeight; |
| 6859 | } |
| 6860 | absoluteContainer->Reflow(container, aPresContext, aReflowInput, aStatus, |
| 6861 | containingBlock, flags, |
| 6862 | &aDesiredSize.mOverflowAreas); |
| 6863 | } |
| 6864 | } |
| 6865 | |
| 6866 | /* virtual */ |
| 6867 | bool nsIFrame::CanContinueTextRun() const { |
| 6868 | // By default, a frame will *not* allow a text run to be continued |
| 6869 | // through it. |
| 6870 | return false; |
| 6871 | } |
| 6872 | |
| 6873 | void nsIFrame::Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize, |
| 6874 | const ReflowInput& aReflowInput, |
| 6875 | nsReflowStatus& aStatus) { |
| 6876 | MarkInReflow(); |
| 6877 | DO_GLOBAL_REFLOW_COUNT("nsFrame")aPresContext->CountReflows(("nsFrame"), (nsIFrame*)this);; |
| 6878 | MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStatus.IsEmpty())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStatus.IsEmpty()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aStatus.IsEmpty()" " (" "Caller should pass a fresh reflow status!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6878); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStatus.IsEmpty()" ") (" "Caller should pass a fresh reflow status!" ")"); do { *((volatile int*)__null) = 6878; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 6879 | aDesiredSize.ClearSize(); |
| 6880 | } |
| 6881 | |
| 6882 | bool nsIFrame::IsContentDisabled() const { |
| 6883 | // FIXME(emilio): Doing this via CSS means callers must ensure the style is up |
| 6884 | // to date, and they don't! |
| 6885 | if (StyleUI()->UserInput() == StyleUserInput::None) { |
| 6886 | return true; |
| 6887 | } |
| 6888 | |
| 6889 | auto* element = nsGenericHTMLElement::FromNodeOrNull(GetContent()); |
| 6890 | return element && element->IsDisabled(); |
| 6891 | } |
| 6892 | |
| 6893 | bool nsIFrame::IsContentRelevant() const { |
| 6894 | MOZ_ASSERT(StyleDisplay()->ContentVisibility(*this) ==do { static_assert( mozilla::detail::AssertionConditionType< decltype(StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility ::Auto)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility ::Auto))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility::Auto" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6895); AnnotateMozCrashReason("MOZ_ASSERT" "(" "StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility::Auto" ")"); do { *((volatile int*)__null) = 6895; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 6895 | StyleContentVisibility::Auto)do { static_assert( mozilla::detail::AssertionConditionType< decltype(StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility ::Auto)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility ::Auto))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility::Auto" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6895); AnnotateMozCrashReason("MOZ_ASSERT" "(" "StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility::Auto" ")"); do { *((volatile int*)__null) = 6895; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6896 | |
| 6897 | auto* element = Element::FromNodeOrNull(GetContent()); |
| 6898 | MOZ_ASSERT(element)do { static_assert( mozilla::detail::AssertionConditionType< decltype(element)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(element))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("element", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6898); AnnotateMozCrashReason("MOZ_ASSERT" "(" "element" ")" ); do { *((volatile int*)__null) = 6898; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6899 | |
| 6900 | Maybe<ContentRelevancy> relevancy = element->GetContentRelevancy(); |
| 6901 | if (relevancy.isSome()) { |
| 6902 | return !relevancy->isEmpty(); |
| 6903 | } |
| 6904 | |
| 6905 | // If there is no relevancy set, then this frame still has not received had |
| 6906 | // the initial visibility callback call. In that case, only rely on whether |
| 6907 | // or not it is inside a top layer element which will never change for this |
| 6908 | // frame and allows proper rendering of the top layer. |
| 6909 | return IsDescendantOfTopLayerElement(); |
| 6910 | } |
| 6911 | |
| 6912 | bool nsIFrame::HidesContent( |
| 6913 | const EnumSet<IncludeContentVisibility>& aInclude) const { |
| 6914 | auto effectiveContentVisibility = StyleDisplay()->ContentVisibility(*this); |
| 6915 | if (aInclude.contains(IncludeContentVisibility::Hidden) && |
| 6916 | effectiveContentVisibility == StyleContentVisibility::Hidden) { |
| 6917 | return true; |
| 6918 | } |
| 6919 | |
| 6920 | if (aInclude.contains(IncludeContentVisibility::Auto) && |
| 6921 | effectiveContentVisibility == StyleContentVisibility::Auto) { |
| 6922 | return !IsContentRelevant(); |
| 6923 | } |
| 6924 | |
| 6925 | return false; |
| 6926 | } |
| 6927 | |
| 6928 | bool nsIFrame::HidesContentForLayout() const { |
| 6929 | return HidesContent() && !PresShell()->IsForcingLayoutForHiddenContent(this); |
| 6930 | } |
| 6931 | |
| 6932 | bool nsIFrame::IsHiddenByContentVisibilityOfInFlowParentForLayout() const { |
| 6933 | const auto* parent = GetInFlowParent(); |
| 6934 | // The anonymous children owned by parent are important for properly sizing |
| 6935 | // their parents. |
| 6936 | return parent && parent->HidesContentForLayout() && |
| 6937 | !(parent->HasAnyStateBits(NS_FRAME_OWNS_ANON_BOXES) && |
| 6938 | Style()->IsAnonBox()); |
| 6939 | } |
| 6940 | |
| 6941 | nsIFrame* nsIFrame::GetClosestContentVisibilityAncestor( |
| 6942 | const EnumSet<IncludeContentVisibility>& aInclude) const { |
| 6943 | if (!StaticPrefs::layout_css_content_visibility_enabled()) { |
| 6944 | return nullptr; |
| 6945 | } |
| 6946 | |
| 6947 | auto* parent = GetInFlowParent(); |
| 6948 | bool isAnonymousBlock = Style()->IsAnonBox() && parent && |
| 6949 | parent->HasAnyStateBits(NS_FRAME_OWNS_ANON_BOXES); |
| 6950 | for (nsIFrame* cur = parent; cur; cur = cur->GetInFlowParent()) { |
| 6951 | if (!isAnonymousBlock && cur->HidesContent(aInclude)) { |
| 6952 | return cur; |
| 6953 | } |
| 6954 | |
| 6955 | // Anonymous boxes are not hidden by the content-visibility of their first |
| 6956 | // non-anonymous ancestor, but can be hidden by ancestors further up the |
| 6957 | // tree. |
| 6958 | isAnonymousBlock = false; |
| 6959 | } |
| 6960 | |
| 6961 | return nullptr; |
| 6962 | } |
| 6963 | |
| 6964 | bool nsIFrame::IsHiddenByContentVisibilityOnAnyAncestor( |
| 6965 | const EnumSet<IncludeContentVisibility>& aInclude) const { |
| 6966 | return !!GetClosestContentVisibilityAncestor(aInclude); |
| 6967 | } |
| 6968 | |
| 6969 | bool nsIFrame::HasSelectionInSubtree() { |
| 6970 | if (IsSelected()) { |
| 6971 | return true; |
| 6972 | } |
| 6973 | |
| 6974 | RefPtr<nsFrameSelection> frameSelection = GetFrameSelection(); |
| 6975 | if (!frameSelection) { |
| 6976 | return false; |
| 6977 | } |
| 6978 | |
| 6979 | const Selection* selection = |
| 6980 | frameSelection->GetSelection(SelectionType::eNormal); |
| 6981 | if (!selection) { |
| 6982 | return false; |
| 6983 | } |
| 6984 | |
| 6985 | for (uint32_t i = 0; i < selection->RangeCount(); i++) { |
| 6986 | auto* range = selection->GetRangeAt(i); |
| 6987 | MOZ_ASSERT(range)do { static_assert( mozilla::detail::AssertionConditionType< decltype(range)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(range))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("range", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 6987); AnnotateMozCrashReason("MOZ_ASSERT" "(" "range" ")") ; do { *((volatile int*)__null) = 6987; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 6988 | |
| 6989 | const auto* commonAncestorNode = |
| 6990 | range->GetRegisteredClosestCommonInclusiveAncestor(); |
| 6991 | if (commonAncestorNode && |
| 6992 | commonAncestorNode->IsInclusiveDescendantOf(GetContent())) { |
| 6993 | return true; |
| 6994 | } |
| 6995 | } |
| 6996 | |
| 6997 | return false; |
| 6998 | } |
| 6999 | |
| 7000 | bool nsIFrame::IsDescendantOfTopLayerElement() const { |
| 7001 | if (!GetContent()) { |
| 7002 | return false; |
| 7003 | } |
| 7004 | |
| 7005 | nsTArray<dom::Element*> topLayer = PresContext()->Document()->GetTopLayer(); |
| 7006 | for (auto* element : topLayer) { |
| 7007 | if (GetContent()->IsInclusiveFlatTreeDescendantOf(element)) { |
| 7008 | return true; |
| 7009 | } |
| 7010 | } |
| 7011 | |
| 7012 | return false; |
| 7013 | } |
| 7014 | |
| 7015 | bool nsIFrame::UpdateIsRelevantContent( |
| 7016 | const ContentRelevancy& aRelevancyToUpdate) { |
| 7017 | MOZ_ASSERT(StyleDisplay()->ContentVisibility(*this) ==do { static_assert( mozilla::detail::AssertionConditionType< decltype(StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility ::Auto)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility ::Auto))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility::Auto" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7018); AnnotateMozCrashReason("MOZ_ASSERT" "(" "StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility::Auto" ")"); do { *((volatile int*)__null) = 7018; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 7018 | StyleContentVisibility::Auto)do { static_assert( mozilla::detail::AssertionConditionType< decltype(StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility ::Auto)>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility ::Auto))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility::Auto" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7018); AnnotateMozCrashReason("MOZ_ASSERT" "(" "StyleDisplay()->ContentVisibility(*this) == StyleContentVisibility::Auto" ")"); do { *((volatile int*)__null) = 7018; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7019 | |
| 7020 | auto* element = Element::FromNodeOrNull(GetContent()); |
| 7021 | MOZ_ASSERT(element)do { static_assert( mozilla::detail::AssertionConditionType< decltype(element)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(element))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("element", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7021); AnnotateMozCrashReason("MOZ_ASSERT" "(" "element" ")" ); do { *((volatile int*)__null) = 7021; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7022 | |
| 7023 | ContentRelevancy newRelevancy; |
| 7024 | Maybe<ContentRelevancy> oldRelevancy = element->GetContentRelevancy(); |
| 7025 | if (oldRelevancy.isSome()) { |
| 7026 | newRelevancy = *oldRelevancy; |
| 7027 | } |
| 7028 | |
| 7029 | auto setRelevancyValue = [&](ContentRelevancyReason reason, bool value) { |
| 7030 | if (value) { |
| 7031 | newRelevancy += reason; |
| 7032 | } else { |
| 7033 | newRelevancy -= reason; |
| 7034 | } |
| 7035 | }; |
| 7036 | |
| 7037 | if (!oldRelevancy || |
| 7038 | aRelevancyToUpdate.contains(ContentRelevancyReason::Visible)) { |
| 7039 | Maybe<bool> visible = element->GetVisibleForContentVisibility(); |
| 7040 | if (visible.isSome()) { |
| 7041 | setRelevancyValue(ContentRelevancyReason::Visible, *visible); |
| 7042 | } |
| 7043 | } |
| 7044 | |
| 7045 | if (!oldRelevancy || |
| 7046 | aRelevancyToUpdate.contains(ContentRelevancyReason::FocusInSubtree)) { |
| 7047 | setRelevancyValue(ContentRelevancyReason::FocusInSubtree, |
| 7048 | element->State().HasAtLeastOneOfStates( |
| 7049 | ElementState::FOCUS_WITHIN | ElementState::FOCUS)); |
| 7050 | } |
| 7051 | |
| 7052 | if (!oldRelevancy || |
| 7053 | aRelevancyToUpdate.contains(ContentRelevancyReason::Selected)) { |
| 7054 | setRelevancyValue(ContentRelevancyReason::Selected, |
| 7055 | HasSelectionInSubtree()); |
| 7056 | } |
| 7057 | |
| 7058 | bool overallRelevancyChanged = |
| 7059 | !oldRelevancy || oldRelevancy->isEmpty() != newRelevancy.isEmpty(); |
| 7060 | if (!oldRelevancy || *oldRelevancy != newRelevancy) { |
| 7061 | element->SetContentRelevancy(newRelevancy); |
| 7062 | } |
| 7063 | |
| 7064 | if (!overallRelevancyChanged) { |
| 7065 | return false; |
| 7066 | } |
| 7067 | |
| 7068 | HandleLastRememberedSize(); |
| 7069 | PresShell()->FrameNeedsReflow( |
| 7070 | this, IntrinsicDirty::FrameAncestorsAndDescendants, NS_FRAME_IS_DIRTY); |
| 7071 | InvalidateFrame(); |
| 7072 | |
| 7073 | ContentVisibilityAutoStateChangeEventInit init; |
| 7074 | init.mSkipped = newRelevancy.isEmpty(); |
| 7075 | RefPtr<ContentVisibilityAutoStateChangeEvent> event = |
| 7076 | ContentVisibilityAutoStateChangeEvent::Constructor( |
| 7077 | element, u"contentvisibilityautostatechange"_ns, init); |
| 7078 | |
| 7079 | // Per |
| 7080 | // https://drafts.csswg.org/css-contain/#content-visibility-auto-state-changed |
| 7081 | // "This event is dispatched by posting a task at the time when the state |
| 7082 | // change occurs." |
| 7083 | RefPtr<AsyncEventDispatcher> asyncDispatcher = |
| 7084 | new AsyncEventDispatcher(element, event.forget()); |
| 7085 | DebugOnly<nsresult> rv = asyncDispatcher->PostDOMEvent(); |
| 7086 | NS_ASSERTION(NS_SUCCEEDED(rv), "AsyncEventDispatcher failed to dispatch")do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1 ))))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "AsyncEventDispatcher failed to dispatch" , "NS_SUCCEEDED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7086); MOZ_PretendNoReturn(); } } while (0); |
| 7087 | return true; |
| 7088 | } |
| 7089 | |
| 7090 | nsresult nsIFrame::CharacterDataChanged(const CharacterDataChangeInfo&) { |
| 7091 | MOZ_ASSERT_UNREACHABLE("should only be called for text frames")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: " "should only be called for text frames" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7091); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "should only be called for text frames" ")"); do { *((volatile int*)__null) = 7091; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7092 | return NS_OK; |
| 7093 | } |
| 7094 | |
| 7095 | nsresult nsIFrame::AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute, |
| 7096 | int32_t aModType) { |
| 7097 | return NS_OK; |
| 7098 | } |
| 7099 | |
| 7100 | // Flow member functions |
| 7101 | |
| 7102 | nsIFrame* nsIFrame::GetPrevContinuation() const { return nullptr; } |
| 7103 | |
| 7104 | void nsIFrame::SetPrevContinuation(nsIFrame* aPrevContinuation) { |
| 7105 | MOZ_ASSERT(false, "not splittable")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "not splittable" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7105); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "not splittable" ")"); do { *((volatile int*)__null) = 7105; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 7106 | } |
| 7107 | |
| 7108 | nsIFrame* nsIFrame::GetNextContinuation() const { return nullptr; } |
| 7109 | |
| 7110 | void nsIFrame::SetNextContinuation(nsIFrame*) { |
| 7111 | MOZ_ASSERT(false, "not splittable")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "not splittable" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7111); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "not splittable" ")"); do { *((volatile int*)__null) = 7111; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 7112 | } |
| 7113 | |
| 7114 | nsIFrame* nsIFrame::GetPrevInFlow() const { return nullptr; } |
| 7115 | |
| 7116 | void nsIFrame::SetPrevInFlow(nsIFrame* aPrevInFlow) { |
| 7117 | MOZ_ASSERT(false, "not splittable")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "not splittable" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7117); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "not splittable" ")"); do { *((volatile int*)__null) = 7117; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 7118 | } |
| 7119 | |
| 7120 | nsIFrame* nsIFrame::GetNextInFlow() const { return nullptr; } |
| 7121 | |
| 7122 | void nsIFrame::SetNextInFlow(nsIFrame*) { MOZ_ASSERT(false, "not splittable")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "not splittable" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7122); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "not splittable" ")"); do { *((volatile int*)__null) = 7122; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); } |
| 7123 | |
| 7124 | nsIFrame* nsIFrame::GetTailContinuation() { |
| 7125 | nsIFrame* frame = this; |
| 7126 | while (frame->HasAnyStateBits(NS_FRAME_IS_OVERFLOW_CONTAINER)) { |
| 7127 | frame = frame->GetPrevContinuation(); |
| 7128 | NS_ASSERTION(frame, "first continuation can't be overflow container")do { if (!(frame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "first continuation can't be overflow container" , "frame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7128); MOZ_PretendNoReturn(); } } while (0); |
| 7129 | } |
| 7130 | for (nsIFrame* next = frame->GetNextContinuation(); |
| 7131 | next && !next->HasAnyStateBits(NS_FRAME_IS_OVERFLOW_CONTAINER); |
| 7132 | next = frame->GetNextContinuation()) { |
| 7133 | frame = next; |
| 7134 | } |
| 7135 | |
| 7136 | MOZ_ASSERT(frame, "illegal state in continuation chain.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(frame)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(frame))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("frame" " (" "illegal state in continuation chain." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7136); AnnotateMozCrashReason("MOZ_ASSERT" "(" "frame" ") (" "illegal state in continuation chain." ")"); do { *((volatile int*)__null) = 7136; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 7137 | return frame; |
| 7138 | } |
| 7139 | |
| 7140 | // Associated view object |
| 7141 | void nsIFrame::SetView(nsView* aView) { |
| 7142 | if (aView) { |
| 7143 | aView->SetFrame(this); |
| 7144 | |
| 7145 | #ifdef DEBUG1 |
| 7146 | LayoutFrameType frameType = Type(); |
| 7147 | NS_ASSERTION(frameType == LayoutFrameType::SubDocument ||do { if (!(frameType == LayoutFrameType::SubDocument || frameType == LayoutFrameType::ListControl || frameType == LayoutFrameType ::Viewport || frameType == LayoutFrameType::MenuPopup)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Only specific frame types can have an nsView" , "frameType == LayoutFrameType::SubDocument || frameType == LayoutFrameType::ListControl || frameType == LayoutFrameType::Viewport || frameType == LayoutFrameType::MenuPopup" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7151); MOZ_PretendNoReturn(); } } while (0) |
| 7148 | frameType == LayoutFrameType::ListControl ||do { if (!(frameType == LayoutFrameType::SubDocument || frameType == LayoutFrameType::ListControl || frameType == LayoutFrameType ::Viewport || frameType == LayoutFrameType::MenuPopup)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Only specific frame types can have an nsView" , "frameType == LayoutFrameType::SubDocument || frameType == LayoutFrameType::ListControl || frameType == LayoutFrameType::Viewport || frameType == LayoutFrameType::MenuPopup" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7151); MOZ_PretendNoReturn(); } } while (0) |
| 7149 | frameType == LayoutFrameType::Viewport ||do { if (!(frameType == LayoutFrameType::SubDocument || frameType == LayoutFrameType::ListControl || frameType == LayoutFrameType ::Viewport || frameType == LayoutFrameType::MenuPopup)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Only specific frame types can have an nsView" , "frameType == LayoutFrameType::SubDocument || frameType == LayoutFrameType::ListControl || frameType == LayoutFrameType::Viewport || frameType == LayoutFrameType::MenuPopup" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7151); MOZ_PretendNoReturn(); } } while (0) |
| 7150 | frameType == LayoutFrameType::MenuPopup,do { if (!(frameType == LayoutFrameType::SubDocument || frameType == LayoutFrameType::ListControl || frameType == LayoutFrameType ::Viewport || frameType == LayoutFrameType::MenuPopup)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Only specific frame types can have an nsView" , "frameType == LayoutFrameType::SubDocument || frameType == LayoutFrameType::ListControl || frameType == LayoutFrameType::Viewport || frameType == LayoutFrameType::MenuPopup" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7151); MOZ_PretendNoReturn(); } } while (0) |
| 7151 | "Only specific frame types can have an nsView")do { if (!(frameType == LayoutFrameType::SubDocument || frameType == LayoutFrameType::ListControl || frameType == LayoutFrameType ::Viewport || frameType == LayoutFrameType::MenuPopup)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Only specific frame types can have an nsView" , "frameType == LayoutFrameType::SubDocument || frameType == LayoutFrameType::ListControl || frameType == LayoutFrameType::Viewport || frameType == LayoutFrameType::MenuPopup" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7151); MOZ_PretendNoReturn(); } } while (0); |
| 7152 | #endif |
| 7153 | |
| 7154 | // Store the view on the frame. |
| 7155 | SetViewInternal(aView); |
| 7156 | |
| 7157 | // Set the frame state bit that says the frame has a view |
| 7158 | AddStateBits(NS_FRAME_HAS_VIEW); |
| 7159 | |
| 7160 | // Let all of the ancestors know they have a descendant with a view. |
| 7161 | for (nsIFrame* f = GetParent(); |
| 7162 | f && !f->HasAnyStateBits(NS_FRAME_HAS_CHILD_WITH_VIEW); |
| 7163 | f = f->GetParent()) |
| 7164 | f->AddStateBits(NS_FRAME_HAS_CHILD_WITH_VIEW); |
| 7165 | } else { |
| 7166 | MOZ_ASSERT_UNREACHABLE("Destroying a view while the frame is alive?")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: " "Destroying a view while the frame is alive?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7166); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "Destroying a view while the frame is alive?" ")"); do { *((volatile int*)__null) = 7166; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7167 | RemoveStateBits(NS_FRAME_HAS_VIEW); |
| 7168 | SetViewInternal(nullptr); |
| 7169 | } |
| 7170 | } |
| 7171 | |
| 7172 | // Find the first geometric parent that has a view |
| 7173 | nsIFrame* nsIFrame::GetAncestorWithView() const { |
| 7174 | for (nsIFrame* f = GetParent(); nullptr != f; f = f->GetParent()) { |
| 7175 | if (f->HasView()) { |
| 7176 | return f; |
| 7177 | } |
| 7178 | } |
| 7179 | return nullptr; |
| 7180 | } |
| 7181 | |
| 7182 | template <nsPoint (nsIFrame::*PositionGetter)() const> |
| 7183 | static nsPoint OffsetCalculator(const nsIFrame* aThis, const nsIFrame* aOther) { |
| 7184 | MOZ_ASSERT(aOther, "Must have frame for destination coordinate system!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aOther)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aOther))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aOther" " (" "Must have frame for destination coordinate system!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7184); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aOther" ") (" "Must have frame for destination coordinate system!" ")"); do { *((volatile int*)__null) = 7184; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 7185 | |
| 7186 | NS_ASSERTION(aThis->PresContext() == aOther->PresContext(),do { if (!(aThis->PresContext() == aOther->PresContext( ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "GetOffsetTo called on frames in different documents" , "aThis->PresContext() == aOther->PresContext()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7187); MOZ_PretendNoReturn(); } } while (0) |
| 7187 | "GetOffsetTo called on frames in different documents")do { if (!(aThis->PresContext() == aOther->PresContext( ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "GetOffsetTo called on frames in different documents" , "aThis->PresContext() == aOther->PresContext()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7187); MOZ_PretendNoReturn(); } } while (0); |
| 7188 | |
| 7189 | nsPoint offset(0, 0); |
| 7190 | const nsIFrame* f; |
| 7191 | for (f = aThis; f != aOther && f; f = f->GetParent()) { |
| 7192 | offset += (f->*PositionGetter)(); |
| 7193 | } |
| 7194 | |
| 7195 | if (f != aOther) { |
| 7196 | // Looks like aOther wasn't an ancestor of |this|. So now we have |
| 7197 | // the root-frame-relative position of |this| in |offset|. Convert back |
| 7198 | // to the coordinates of aOther |
| 7199 | while (aOther) { |
| 7200 | offset -= (aOther->*PositionGetter)(); |
| 7201 | aOther = aOther->GetParent(); |
| 7202 | } |
| 7203 | } |
| 7204 | |
| 7205 | return offset; |
| 7206 | } |
| 7207 | |
| 7208 | nsPoint nsIFrame::GetOffsetTo(const nsIFrame* aOther) const { |
| 7209 | return OffsetCalculator<&nsIFrame::GetPosition>(this, aOther); |
| 7210 | } |
| 7211 | |
| 7212 | nsPoint nsIFrame::GetOffsetToIgnoringScrolling(const nsIFrame* aOther) const { |
| 7213 | return OffsetCalculator<&nsIFrame::GetPositionIgnoringScrolling>(this, |
| 7214 | aOther); |
| 7215 | } |
| 7216 | |
| 7217 | nsPoint nsIFrame::GetOffsetToCrossDoc(const nsIFrame* aOther) const { |
| 7218 | return GetOffsetToCrossDoc(aOther, PresContext()->AppUnitsPerDevPixel()); |
| 7219 | } |
| 7220 | |
| 7221 | nsPoint nsIFrame::GetOffsetToCrossDoc(const nsIFrame* aOther, |
| 7222 | const int32_t aAPD) const { |
| 7223 | MOZ_ASSERT(aOther, "Must have frame for destination coordinate system!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aOther)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aOther))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aOther" " (" "Must have frame for destination coordinate system!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7223); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aOther" ") (" "Must have frame for destination coordinate system!" ")"); do { *((volatile int*)__null) = 7223; __attribute__((nomerge)) :: abort(); } while (false); } } while (false); |
| 7224 | NS_ASSERTION(PresContext()->GetRootPresContext() ==do { if (!(PresContext()->GetRootPresContext() == aOther-> PresContext()->GetRootPresContext())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "trying to get the offset between frames in different document " "hierarchies?", "PresContext()->GetRootPresContext() == aOther->PresContext()->GetRootPresContext()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7227); MOZ_PretendNoReturn(); } } while (0) |
| 7225 | aOther->PresContext()->GetRootPresContext(),do { if (!(PresContext()->GetRootPresContext() == aOther-> PresContext()->GetRootPresContext())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "trying to get the offset between frames in different document " "hierarchies?", "PresContext()->GetRootPresContext() == aOther->PresContext()->GetRootPresContext()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7227); MOZ_PretendNoReturn(); } } while (0) |
| 7226 | "trying to get the offset between frames in different document "do { if (!(PresContext()->GetRootPresContext() == aOther-> PresContext()->GetRootPresContext())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "trying to get the offset between frames in different document " "hierarchies?", "PresContext()->GetRootPresContext() == aOther->PresContext()->GetRootPresContext()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7227); MOZ_PretendNoReturn(); } } while (0) |
| 7227 | "hierarchies?")do { if (!(PresContext()->GetRootPresContext() == aOther-> PresContext()->GetRootPresContext())) { NS_DebugBreak(NS_DEBUG_ASSERTION , "trying to get the offset between frames in different document " "hierarchies?", "PresContext()->GetRootPresContext() == aOther->PresContext()->GetRootPresContext()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7227); MOZ_PretendNoReturn(); } } while (0); |
| 7228 | if (PresContext()->GetRootPresContext() != |
| 7229 | aOther->PresContext()->GetRootPresContext()) { |
| 7230 | // crash right away, we are almost certainly going to crash anyway. |
| 7231 | MOZ_CRASH(do { do { } while (false); MOZ_ReportCrash("" "trying to get the offset between frames in different " "document hierarchies?", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7233); AnnotateMozCrashReason("MOZ_CRASH(" "trying to get the offset between frames in different " "document hierarchies?" ")"); do { *((volatile int*)__null) = 7233; __attribute__((nomerge)) ::abort(); } while (false); } while (false) |
| 7232 | "trying to get the offset between frames in different "do { do { } while (false); MOZ_ReportCrash("" "trying to get the offset between frames in different " "document hierarchies?", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7233); AnnotateMozCrashReason("MOZ_CRASH(" "trying to get the offset between frames in different " "document hierarchies?" ")"); do { *((volatile int*)__null) = 7233; __attribute__((nomerge)) ::abort(); } while (false); } while (false) |
| 7233 | "document hierarchies?")do { do { } while (false); MOZ_ReportCrash("" "trying to get the offset between frames in different " "document hierarchies?", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7233); AnnotateMozCrashReason("MOZ_CRASH(" "trying to get the offset between frames in different " "document hierarchies?" ")"); do { *((volatile int*)__null) = 7233; __attribute__((nomerge)) ::abort(); } while (false); } while (false); |
| 7234 | } |
| 7235 | |
| 7236 | const nsIFrame* root = nullptr; |
| 7237 | // offset will hold the final offset |
| 7238 | // docOffset holds the currently accumulated offset at the current APD, it |
| 7239 | // will be converted and added to offset when the current APD changes. |
| 7240 | nsPoint offset(0, 0), docOffset(0, 0); |
| 7241 | const nsIFrame* f = this; |
| 7242 | int32_t currAPD = PresContext()->AppUnitsPerDevPixel(); |
| 7243 | while (f && f != aOther) { |
| 7244 | docOffset += f->GetPosition(); |
| 7245 | nsIFrame* parent = f->GetParent(); |
| 7246 | if (parent) { |
| 7247 | f = parent; |
| 7248 | } else { |
| 7249 | nsPoint newOffset(0, 0); |
| 7250 | root = f; |
| 7251 | f = nsLayoutUtils::GetCrossDocParentFrameInProcess(f, &newOffset); |
| 7252 | int32_t newAPD = f ? f->PresContext()->AppUnitsPerDevPixel() : 0; |
| 7253 | if (!f || newAPD != currAPD) { |
| 7254 | // Convert docOffset to the right APD and add it to offset. |
| 7255 | offset += docOffset.ScaleToOtherAppUnits(currAPD, aAPD); |
| 7256 | docOffset.x = docOffset.y = 0; |
| 7257 | } |
| 7258 | currAPD = newAPD; |
| 7259 | docOffset += newOffset; |
| 7260 | } |
| 7261 | } |
| 7262 | if (f == aOther) { |
| 7263 | offset += docOffset.ScaleToOtherAppUnits(currAPD, aAPD); |
| 7264 | } else { |
| 7265 | // Looks like aOther wasn't an ancestor of |this|. So now we have |
| 7266 | // the root-document-relative position of |this| in |offset|. Subtract the |
| 7267 | // root-document-relative position of |aOther| from |offset|. |
| 7268 | // This call won't try to recurse again because root is an ancestor of |
| 7269 | // aOther. |
| 7270 | nsPoint negOffset = aOther->GetOffsetToCrossDoc(root, aAPD); |
| 7271 | offset -= negOffset; |
| 7272 | } |
| 7273 | |
| 7274 | return offset; |
| 7275 | } |
| 7276 | |
| 7277 | CSSIntRect nsIFrame::GetScreenRect() const { |
| 7278 | return CSSIntRect::FromAppUnitsToNearest(GetScreenRectInAppUnits()); |
| 7279 | } |
| 7280 | |
| 7281 | nsRect nsIFrame::GetScreenRectInAppUnits() const { |
| 7282 | nsPresContext* presContext = PresContext(); |
| 7283 | nsIFrame* rootFrame = presContext->PresShell()->GetRootFrame(); |
| 7284 | nsPoint rootScreenPos(0, 0); |
| 7285 | nsPoint rootFrameOffsetInParent(0, 0); |
| 7286 | nsIFrame* rootFrameParent = nsLayoutUtils::GetCrossDocParentFrameInProcess( |
| 7287 | rootFrame, &rootFrameOffsetInParent); |
| 7288 | if (rootFrameParent) { |
| 7289 | nsRect parentScreenRectAppUnits = |
| 7290 | rootFrameParent->GetScreenRectInAppUnits(); |
| 7291 | nsPresContext* parentPresContext = rootFrameParent->PresContext(); |
| 7292 | double parentScale = double(presContext->AppUnitsPerDevPixel()) / |
| 7293 | parentPresContext->AppUnitsPerDevPixel(); |
| 7294 | nsPoint rootPt = |
| 7295 | parentScreenRectAppUnits.TopLeft() + rootFrameOffsetInParent; |
| 7296 | rootScreenPos.x = NS_round(parentScale * rootPt.x); |
| 7297 | rootScreenPos.y = NS_round(parentScale * rootPt.y); |
| 7298 | } else { |
| 7299 | nsCOMPtr<nsIWidget> rootWidget = |
| 7300 | presContext->PresShell()->GetViewManager()->GetRootWidget(); |
| 7301 | if (rootWidget) { |
| 7302 | LayoutDeviceIntPoint rootDevPx = rootWidget->WidgetToScreenOffset(); |
| 7303 | rootScreenPos.x = presContext->DevPixelsToAppUnits(rootDevPx.x); |
| 7304 | rootScreenPos.y = presContext->DevPixelsToAppUnits(rootDevPx.y); |
| 7305 | } |
| 7306 | } |
| 7307 | |
| 7308 | return nsRect(rootScreenPos + GetOffsetTo(rootFrame), GetSize()); |
| 7309 | } |
| 7310 | |
| 7311 | // Returns the offset from this frame to the closest geometric parent that |
| 7312 | // has a view. Also returns the containing view or null in case of error |
| 7313 | void nsIFrame::GetOffsetFromView(nsPoint& aOffset, nsView** aView) const { |
| 7314 | MOZ_ASSERT(nullptr != aView, "null OUT parameter pointer")do { static_assert( mozilla::detail::AssertionConditionType< decltype(nullptr != aView)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(nullptr != aView))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("nullptr != aView" " (" "null OUT parameter pointer" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7314); AnnotateMozCrashReason("MOZ_ASSERT" "(" "nullptr != aView" ") (" "null OUT parameter pointer" ")"); do { *((volatile int *)__null) = 7314; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 7315 | nsIFrame* frame = const_cast<nsIFrame*>(this); |
| 7316 | |
| 7317 | *aView = nullptr; |
| 7318 | aOffset.MoveTo(0, 0); |
| 7319 | do { |
| 7320 | aOffset += frame->GetPosition(); |
| 7321 | frame = frame->GetParent(); |
| 7322 | } while (frame && !frame->HasView()); |
| 7323 | |
| 7324 | if (frame) { |
| 7325 | *aView = frame->GetView(); |
| 7326 | } |
| 7327 | } |
| 7328 | |
| 7329 | nsIWidget* nsIFrame::GetNearestWidget() const { |
| 7330 | return GetClosestView()->GetNearestWidget(nullptr); |
| 7331 | } |
| 7332 | |
| 7333 | nsIWidget* nsIFrame::GetNearestWidget(nsPoint& aOffset) const { |
| 7334 | nsPoint offsetToView; |
| 7335 | nsPoint offsetToWidget; |
| 7336 | nsIWidget* widget = |
| 7337 | GetClosestView(&offsetToView)->GetNearestWidget(&offsetToWidget); |
| 7338 | aOffset = offsetToView + offsetToWidget; |
| 7339 | return widget; |
| 7340 | } |
| 7341 | |
| 7342 | Matrix4x4Flagged nsIFrame::GetTransformMatrix(ViewportType aViewportType, |
| 7343 | RelativeTo aStopAtAncestor, |
| 7344 | nsIFrame** aOutAncestor, |
| 7345 | uint32_t aFlags) const { |
| 7346 | MOZ_ASSERT(aOutAncestor, "Need a place to put the ancestor!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aOutAncestor)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aOutAncestor))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aOutAncestor" " (" "Need a place to put the ancestor!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7346); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aOutAncestor" ") (" "Need a place to put the ancestor!" ")"); do { *((volatile int*)__null) = 7346; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 7347 | |
| 7348 | /* If we're transformed, we want to hand back the combination |
| 7349 | * transform/translate matrix that will apply our current transform, then |
| 7350 | * shift us to our parent. |
| 7351 | */ |
| 7352 | const bool isTransformed = IsTransformed(); |
| 7353 | const nsIFrame* zoomedContentRoot = nullptr; |
| 7354 | if (aStopAtAncestor.mViewportType == ViewportType::Visual) { |
| 7355 | zoomedContentRoot = ViewportUtils::IsZoomedContentRoot(this); |
| 7356 | if (zoomedContentRoot) { |
| 7357 | MOZ_ASSERT(aViewportType != ViewportType::Visual)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aViewportType != ViewportType::Visual)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(! !(aViewportType != ViewportType::Visual))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aViewportType != ViewportType::Visual" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7357); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aViewportType != ViewportType::Visual" ")"); do { *((volatile int*)__null) = 7357; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7358 | } |
| 7359 | } |
| 7360 | |
| 7361 | if (isTransformed || zoomedContentRoot) { |
| 7362 | Matrix4x4 result; |
| 7363 | int32_t scaleFactor = |
| 7364 | ((aFlags & IN_CSS_UNITS) ? AppUnitsPerCSSPixel() |
| 7365 | : PresContext()->AppUnitsPerDevPixel()); |
| 7366 | |
| 7367 | /* Compute the delta to the parent, which we need because we are converting |
| 7368 | * coordinates to our parent. |
| 7369 | */ |
| 7370 | if (isTransformed) { |
| 7371 | NS_ASSERTION(nsLayoutUtils::GetCrossDocParentFrameInProcess(this),do { if (!(nsLayoutUtils::GetCrossDocParentFrameInProcess(this ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Cannot transform the viewport frame!" , "nsLayoutUtils::GetCrossDocParentFrameInProcess(this)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7372); MOZ_PretendNoReturn(); } } while (0) |
| 7372 | "Cannot transform the viewport frame!")do { if (!(nsLayoutUtils::GetCrossDocParentFrameInProcess(this ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Cannot transform the viewport frame!" , "nsLayoutUtils::GetCrossDocParentFrameInProcess(this)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7372); MOZ_PretendNoReturn(); } } while (0); |
| 7373 | |
| 7374 | result = result * nsDisplayTransform::GetResultingTransformMatrix( |
| 7375 | this, nsPoint(0, 0), scaleFactor, |
| 7376 | nsDisplayTransform::INCLUDE_PERSPECTIVE | |
| 7377 | nsDisplayTransform::OFFSET_BY_ORIGIN); |
| 7378 | } |
| 7379 | |
| 7380 | // The offset from a zoomed content root to its parent (e.g. from |
| 7381 | // a canvas frame to a scroll frame) is in layout coordinates, so |
| 7382 | // apply it before applying any layout-to-visual transform. |
| 7383 | *aOutAncestor = nsLayoutUtils::GetCrossDocParentFrameInProcess(this); |
| 7384 | nsPoint delta = GetOffsetToCrossDoc(*aOutAncestor); |
| 7385 | /* Combine the raw transform with a translation to our parent. */ |
| 7386 | result.PostTranslate(NSAppUnitsToFloatPixels(delta.x, scaleFactor), |
| 7387 | NSAppUnitsToFloatPixels(delta.y, scaleFactor), 0.0f); |
| 7388 | |
| 7389 | if (zoomedContentRoot) { |
| 7390 | Matrix4x4 layoutToVisual; |
| 7391 | ScrollableLayerGuid::ViewID targetScrollId = |
| 7392 | nsLayoutUtils::FindOrCreateIDFor(zoomedContentRoot->GetContent()); |
| 7393 | if (aFlags & nsIFrame::IN_CSS_UNITS) { |
| 7394 | layoutToVisual = |
| 7395 | ViewportUtils::GetVisualToLayoutTransform(targetScrollId) |
| 7396 | .Inverse() |
| 7397 | .ToUnknownMatrix(); |
| 7398 | } else { |
| 7399 | layoutToVisual = |
| 7400 | ViewportUtils::GetVisualToLayoutTransform<LayoutDevicePixel>( |
| 7401 | targetScrollId) |
| 7402 | .Inverse() |
| 7403 | .ToUnknownMatrix(); |
| 7404 | } |
| 7405 | result = result * layoutToVisual; |
| 7406 | } |
| 7407 | |
| 7408 | return result; |
| 7409 | } |
| 7410 | |
| 7411 | *aOutAncestor = nsLayoutUtils::GetCrossDocParentFrameInProcess(this); |
| 7412 | |
| 7413 | /* Otherwise, we're not transformed. In that case, we'll walk up the frame |
| 7414 | * tree until we either hit the root frame or something that may be |
| 7415 | * transformed. We'll then change coordinates into that frame, since we're |
| 7416 | * guaranteed that nothing in-between can be transformed. First, however, |
| 7417 | * we have to check to see if we have a parent. If not, we'll set the |
| 7418 | * outparam to null (indicating that there's nothing left) and will hand back |
| 7419 | * the identity matrix. |
| 7420 | */ |
| 7421 | if (!*aOutAncestor) return Matrix4x4(); |
| 7422 | |
| 7423 | /* Keep iterating while the frame can't possibly be transformed. */ |
| 7424 | const nsIFrame* current = this; |
| 7425 | auto shouldStopAt = [](const nsIFrame* aCurrent, nsIFrame* aAncestor, |
| 7426 | uint32_t aFlags) { |
| 7427 | return aAncestor->IsTransformed() || nsLayoutUtils::IsPopup(aAncestor) || |
| 7428 | ViewportUtils::IsZoomedContentRoot(aAncestor) || |
| 7429 | ((aFlags & STOP_AT_STACKING_CONTEXT_AND_DISPLAY_PORT) && |
| 7430 | (aAncestor->IsStackingContext() || |
| 7431 | DisplayPortUtils::FrameHasDisplayPort(aAncestor, aCurrent))); |
| 7432 | }; |
| 7433 | while (*aOutAncestor != aStopAtAncestor.mFrame && |
| 7434 | !shouldStopAt(current, *aOutAncestor, aFlags)) { |
| 7435 | /* If no parent, stop iterating. Otherwise, update the ancestor. */ |
| 7436 | nsIFrame* parent = |
| 7437 | nsLayoutUtils::GetCrossDocParentFrameInProcess(*aOutAncestor); |
| 7438 | if (!parent) break; |
| 7439 | |
| 7440 | current = *aOutAncestor; |
| 7441 | *aOutAncestor = parent; |
| 7442 | } |
| 7443 | |
| 7444 | NS_ASSERTION(*aOutAncestor, "Somehow ended up with a null ancestor...?")do { if (!(*aOutAncestor)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Somehow ended up with a null ancestor...?", "*aOutAncestor" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7444); MOZ_PretendNoReturn(); } } while (0); |
| 7445 | |
| 7446 | /* Translate from this frame to our ancestor, if it exists. That's the |
| 7447 | * entire transform, so we're done. |
| 7448 | */ |
| 7449 | nsPoint delta = GetOffsetToCrossDoc(*aOutAncestor); |
| 7450 | int32_t scaleFactor = |
| 7451 | ((aFlags & IN_CSS_UNITS) ? AppUnitsPerCSSPixel() |
| 7452 | : PresContext()->AppUnitsPerDevPixel()); |
| 7453 | return Matrix4x4::Translation(NSAppUnitsToFloatPixels(delta.x, scaleFactor), |
| 7454 | NSAppUnitsToFloatPixels(delta.y, scaleFactor), |
| 7455 | 0.0f); |
| 7456 | } |
| 7457 | |
| 7458 | static void InvalidateRenderingObservers(nsIFrame* aDisplayRoot, |
| 7459 | nsIFrame* aFrame, |
| 7460 | bool aFrameChanged = true) { |
| 7461 | MOZ_ASSERT(aDisplayRoot == nsLayoutUtils::GetDisplayRootFrame(aFrame))do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDisplayRoot == nsLayoutUtils::GetDisplayRootFrame(aFrame ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aDisplayRoot == nsLayoutUtils::GetDisplayRootFrame(aFrame )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aDisplayRoot == nsLayoutUtils::GetDisplayRootFrame(aFrame)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7461); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDisplayRoot == nsLayoutUtils::GetDisplayRootFrame(aFrame)" ")"); do { *((volatile int*)__null) = 7461; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7462 | SVGObserverUtils::InvalidateDirectRenderingObservers(aFrame); |
| 7463 | nsIFrame* parent = aFrame; |
| 7464 | while (parent != aDisplayRoot && |
| 7465 | (parent = nsLayoutUtils::GetCrossDocParentFrameInProcess(parent)) && |
| 7466 | !parent->HasAnyStateBits(NS_FRAME_DESCENDANT_NEEDS_PAINT)) { |
| 7467 | SVGObserverUtils::InvalidateDirectRenderingObservers(parent); |
| 7468 | } |
| 7469 | |
| 7470 | if (!aFrameChanged) { |
| 7471 | return; |
| 7472 | } |
| 7473 | |
| 7474 | aFrame->MarkNeedsDisplayItemRebuild(); |
| 7475 | } |
| 7476 | |
| 7477 | static void SchedulePaintInternal( |
| 7478 | nsIFrame* aDisplayRoot, nsIFrame* aFrame, |
| 7479 | nsIFrame::PaintType aType = nsIFrame::PAINT_DEFAULT) { |
| 7480 | MOZ_ASSERT(aDisplayRoot == nsLayoutUtils::GetDisplayRootFrame(aFrame))do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDisplayRoot == nsLayoutUtils::GetDisplayRootFrame(aFrame ))>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aDisplayRoot == nsLayoutUtils::GetDisplayRootFrame(aFrame )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aDisplayRoot == nsLayoutUtils::GetDisplayRootFrame(aFrame)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7480); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDisplayRoot == nsLayoutUtils::GetDisplayRootFrame(aFrame)" ")"); do { *((volatile int*)__null) = 7480; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7481 | nsPresContext* pres = aDisplayRoot->PresContext()->GetRootPresContext(); |
| 7482 | |
| 7483 | // No need to schedule a paint for an external document since they aren't |
| 7484 | // painted directly. |
| 7485 | if (!pres || (pres->Document() && pres->Document()->IsResourceDoc())) { |
| 7486 | return; |
| 7487 | } |
| 7488 | if (!pres->GetContainerWeak()) { |
| 7489 | NS_WARNING("Shouldn't call SchedulePaint in a detached pres context")NS_DebugBreak(NS_DEBUG_WARNING, "Shouldn't call SchedulePaint in a detached pres context" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7489); |
| 7490 | return; |
| 7491 | } |
| 7492 | |
| 7493 | pres->PresShell()->ScheduleViewManagerFlush(); |
| 7494 | |
| 7495 | if (aType == nsIFrame::PAINT_DEFAULT) { |
| 7496 | aDisplayRoot->AddStateBits(NS_FRAME_UPDATE_LAYER_TREE); |
| 7497 | } |
| 7498 | } |
| 7499 | |
| 7500 | static void InvalidateFrameInternal(nsIFrame* aFrame, bool aHasDisplayItem, |
| 7501 | bool aRebuildDisplayItems) { |
| 7502 | if (aHasDisplayItem) { |
| 7503 | aFrame->AddStateBits(NS_FRAME_NEEDS_PAINT); |
| 7504 | } |
| 7505 | |
| 7506 | if (aRebuildDisplayItems) { |
| 7507 | aFrame->MarkNeedsDisplayItemRebuild(); |
| 7508 | } |
| 7509 | SVGObserverUtils::InvalidateDirectRenderingObservers(aFrame); |
| 7510 | bool needsSchedulePaint = false; |
| 7511 | if (nsLayoutUtils::IsPopup(aFrame)) { |
| 7512 | needsSchedulePaint = true; |
| 7513 | } else { |
| 7514 | nsIFrame* parent = nsLayoutUtils::GetCrossDocParentFrameInProcess(aFrame); |
| 7515 | while (parent && |
| 7516 | !parent->HasAnyStateBits(NS_FRAME_DESCENDANT_NEEDS_PAINT)) { |
| 7517 | if (aHasDisplayItem && !parent->HasAnyStateBits(NS_FRAME_IS_NONDISPLAY)) { |
| 7518 | parent->AddStateBits(NS_FRAME_DESCENDANT_NEEDS_PAINT); |
| 7519 | } |
| 7520 | SVGObserverUtils::InvalidateDirectRenderingObservers(parent); |
| 7521 | |
| 7522 | // If we're inside a popup, then we need to make sure that we |
| 7523 | // call schedule paint so that the NS_FRAME_UPDATE_LAYER_TREE |
| 7524 | // flag gets added to the popup display root frame. |
| 7525 | if (nsLayoutUtils::IsPopup(parent)) { |
| 7526 | needsSchedulePaint = true; |
| 7527 | break; |
| 7528 | } |
| 7529 | parent = nsLayoutUtils::GetCrossDocParentFrameInProcess(parent); |
| 7530 | } |
| 7531 | if (!parent) { |
| 7532 | needsSchedulePaint = true; |
| 7533 | } |
| 7534 | } |
| 7535 | if (!aHasDisplayItem) { |
| 7536 | return; |
| 7537 | } |
| 7538 | if (needsSchedulePaint) { |
| 7539 | nsIFrame* displayRoot = nsLayoutUtils::GetDisplayRootFrame(aFrame); |
| 7540 | SchedulePaintInternal(displayRoot, aFrame); |
| 7541 | } |
| 7542 | if (aFrame->HasAnyStateBits(NS_FRAME_HAS_INVALID_RECT)) { |
| 7543 | aFrame->RemoveProperty(nsIFrame::InvalidationRect()); |
| 7544 | aFrame->RemoveStateBits(NS_FRAME_HAS_INVALID_RECT); |
| 7545 | } |
| 7546 | } |
| 7547 | |
| 7548 | void nsIFrame::InvalidateFrameSubtree(bool aRebuildDisplayItems /* = true */) { |
| 7549 | InvalidateFrame(0, aRebuildDisplayItems); |
| 7550 | |
| 7551 | if (HasAnyStateBits(NS_FRAME_ALL_DESCENDANTS_NEED_PAINT)) { |
| 7552 | return; |
| 7553 | } |
| 7554 | |
| 7555 | AddStateBits(NS_FRAME_ALL_DESCENDANTS_NEED_PAINT); |
| 7556 | |
| 7557 | for (const auto& childList : CrossDocChildLists()) { |
| 7558 | for (nsIFrame* child : childList.mList) { |
| 7559 | // Don't explicitly rebuild display items for our descendants, |
| 7560 | // since we should be marked and it implicitly includes all |
| 7561 | // descendants. |
| 7562 | child->InvalidateFrameSubtree(false); |
| 7563 | } |
| 7564 | } |
| 7565 | } |
| 7566 | |
| 7567 | void nsIFrame::ClearInvalidationStateBits() { |
| 7568 | if (HasAnyStateBits(NS_FRAME_DESCENDANT_NEEDS_PAINT)) { |
| 7569 | for (const auto& childList : CrossDocChildLists()) { |
| 7570 | for (nsIFrame* child : childList.mList) { |
| 7571 | child->ClearInvalidationStateBits(); |
| 7572 | } |
| 7573 | } |
| 7574 | } |
| 7575 | |
| 7576 | RemoveStateBits(NS_FRAME_NEEDS_PAINT | NS_FRAME_DESCENDANT_NEEDS_PAINT | |
| 7577 | NS_FRAME_ALL_DESCENDANTS_NEED_PAINT); |
| 7578 | } |
| 7579 | |
| 7580 | bool HasRetainedDataFor(const nsIFrame* aFrame, uint32_t aDisplayItemKey) { |
| 7581 | if (RefPtr<WebRenderUserData> data = |
| 7582 | GetWebRenderUserData<WebRenderFallbackData>(aFrame, |
| 7583 | aDisplayItemKey)) { |
| 7584 | return true; |
| 7585 | } |
| 7586 | |
| 7587 | return false; |
| 7588 | } |
| 7589 | |
| 7590 | void nsIFrame::InvalidateFrame(uint32_t aDisplayItemKey, |
| 7591 | bool aRebuildDisplayItems /* = true */) { |
| 7592 | bool hasDisplayItem = |
| 7593 | !aDisplayItemKey || HasRetainedDataFor(this, aDisplayItemKey); |
| 7594 | InvalidateFrameInternal(this, hasDisplayItem, aRebuildDisplayItems); |
| 7595 | } |
| 7596 | |
| 7597 | void nsIFrame::InvalidateFrameWithRect(const nsRect& aRect, |
| 7598 | uint32_t aDisplayItemKey, |
| 7599 | bool aRebuildDisplayItems /* = true */) { |
| 7600 | if (aRect.IsEmpty()) { |
| 7601 | return; |
| 7602 | } |
| 7603 | bool hasDisplayItem = |
| 7604 | !aDisplayItemKey || HasRetainedDataFor(this, aDisplayItemKey); |
| 7605 | bool alreadyInvalid = false; |
| 7606 | if (!HasAnyStateBits(NS_FRAME_NEEDS_PAINT)) { |
| 7607 | InvalidateFrameInternal(this, hasDisplayItem, aRebuildDisplayItems); |
| 7608 | } else { |
| 7609 | alreadyInvalid = true; |
| 7610 | } |
| 7611 | |
| 7612 | if (!hasDisplayItem) { |
| 7613 | return; |
| 7614 | } |
| 7615 | |
| 7616 | nsRect* rect; |
| 7617 | if (HasAnyStateBits(NS_FRAME_HAS_INVALID_RECT)) { |
| 7618 | rect = GetProperty(InvalidationRect()); |
| 7619 | MOZ_ASSERT(rect)do { static_assert( mozilla::detail::AssertionConditionType< decltype(rect)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(rect))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("rect", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7619); AnnotateMozCrashReason("MOZ_ASSERT" "(" "rect" ")"); do { *((volatile int*)__null) = 7619; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7620 | } else { |
| 7621 | if (alreadyInvalid) { |
| 7622 | return; |
| 7623 | } |
| 7624 | rect = new nsRect(); |
| 7625 | AddProperty(InvalidationRect(), rect); |
| 7626 | AddStateBits(NS_FRAME_HAS_INVALID_RECT); |
| 7627 | } |
| 7628 | |
| 7629 | *rect = rect->Union(aRect); |
| 7630 | } |
| 7631 | |
| 7632 | /*static*/ |
| 7633 | uint8_t nsIFrame::sLayerIsPrerenderedDataKey; |
| 7634 | |
| 7635 | bool nsIFrame::IsInvalid(nsRect& aRect) { |
| 7636 | if (!HasAnyStateBits(NS_FRAME_NEEDS_PAINT)) { |
| 7637 | return false; |
| 7638 | } |
| 7639 | |
| 7640 | if (HasAnyStateBits(NS_FRAME_HAS_INVALID_RECT)) { |
| 7641 | nsRect* rect = GetProperty(InvalidationRect()); |
| 7642 | NS_ASSERTION(do { if (!(rect)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Must have an invalid rect if NS_FRAME_HAS_INVALID_RECT is set!" , "rect", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7643); MOZ_PretendNoReturn(); } } while (0) |
| 7643 | rect, "Must have an invalid rect if NS_FRAME_HAS_INVALID_RECT is set!")do { if (!(rect)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Must have an invalid rect if NS_FRAME_HAS_INVALID_RECT is set!" , "rect", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7643); MOZ_PretendNoReturn(); } } while (0); |
| 7644 | aRect = *rect; |
| 7645 | } else { |
| 7646 | aRect.SetEmpty(); |
| 7647 | } |
| 7648 | return true; |
| 7649 | } |
| 7650 | |
| 7651 | void nsIFrame::SchedulePaint(PaintType aType, bool aFrameChanged) { |
| 7652 | if (PresShell()->IsPaintingSuppressed()) { |
| 7653 | // We can't have any display items yet, and when we unsuppress we will |
| 7654 | // invalidate the root frame. |
| 7655 | return; |
| 7656 | } |
| 7657 | nsIFrame* displayRoot = nsLayoutUtils::GetDisplayRootFrame(this); |
| 7658 | InvalidateRenderingObservers(displayRoot, this, aFrameChanged); |
| 7659 | SchedulePaintInternal(displayRoot, this, aType); |
| 7660 | } |
| 7661 | |
| 7662 | void nsIFrame::SchedulePaintWithoutInvalidatingObservers(PaintType aType) { |
| 7663 | nsIFrame* displayRoot = nsLayoutUtils::GetDisplayRootFrame(this); |
| 7664 | SchedulePaintInternal(displayRoot, this, aType); |
| 7665 | } |
| 7666 | |
| 7667 | void nsIFrame::InvalidateLayer(DisplayItemType aDisplayItemKey, |
| 7668 | const nsIntRect* aDamageRect, |
| 7669 | const nsRect* aFrameDamageRect, |
| 7670 | uint32_t aFlags /* = 0 */) { |
| 7671 | NS_ASSERTION(aDisplayItemKey > DisplayItemType::TYPE_ZERO, "Need a key")do { if (!(aDisplayItemKey > DisplayItemType::TYPE_ZERO)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Need a key", "aDisplayItemKey > DisplayItemType::TYPE_ZERO" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7671); MOZ_PretendNoReturn(); } } while (0); |
| 7672 | |
| 7673 | nsIFrame* displayRoot = nsLayoutUtils::GetDisplayRootFrame(this); |
| 7674 | InvalidateRenderingObservers(displayRoot, this, false); |
| 7675 | |
| 7676 | // Check if frame supports WebRender's async update |
| 7677 | if ((aFlags & UPDATE_IS_ASYNC) && |
| 7678 | WebRenderUserData::SupportsAsyncUpdate(this)) { |
| 7679 | // WebRender does not use layer, then return nullptr. |
| 7680 | return; |
| 7681 | } |
| 7682 | |
| 7683 | if (aFrameDamageRect && aFrameDamageRect->IsEmpty()) { |
| 7684 | return; |
| 7685 | } |
| 7686 | |
| 7687 | // In the bug 930056, dialer app startup but not shown on the |
| 7688 | // screen because sometimes we don't have any retainned data |
| 7689 | // for remote type displayitem and thus Repaint event is not |
| 7690 | // triggered. So, always invalidate in this case. |
| 7691 | DisplayItemType displayItemKey = aDisplayItemKey; |
| 7692 | if (aDisplayItemKey == DisplayItemType::TYPE_REMOTE) { |
| 7693 | displayItemKey = DisplayItemType::TYPE_ZERO; |
| 7694 | } |
| 7695 | |
| 7696 | if (aFrameDamageRect) { |
| 7697 | InvalidateFrameWithRect(*aFrameDamageRect, |
| 7698 | static_cast<uint32_t>(displayItemKey)); |
| 7699 | } else { |
| 7700 | InvalidateFrame(static_cast<uint32_t>(displayItemKey)); |
| 7701 | } |
| 7702 | } |
| 7703 | |
| 7704 | static nsRect ComputeEffectsRect(nsIFrame* aFrame, const nsRect& aOverflowRect, |
| 7705 | const nsSize& aNewSize) { |
| 7706 | nsRect r = aOverflowRect; |
| 7707 | |
| 7708 | if (aFrame->HasAnyStateBits(NS_FRAME_SVG_LAYOUT)) { |
| 7709 | // For SVG frames, we only need to account for filters. |
| 7710 | // TODO: We could also take account of clipPath and mask to reduce the |
| 7711 | // ink overflow, but that's not essential. |
| 7712 | if (aFrame->StyleEffects()->HasFilters()) { |
| 7713 | SetOrUpdateRectValuedProperty(aFrame, nsIFrame::PreEffectsBBoxProperty(), |
| 7714 | r); |
| 7715 | r = SVGUtils::GetPostFilterInkOverflowRect(aFrame, aOverflowRect); |
| 7716 | } |
| 7717 | return r; |
| 7718 | } |
| 7719 | |
| 7720 | // box-shadow |
| 7721 | r.UnionRect(r, nsLayoutUtils::GetBoxShadowRectForFrame(aFrame, aNewSize)); |
| 7722 | |
| 7723 | // border-image-outset. |
| 7724 | // We need to include border-image-outset because it can cause the |
| 7725 | // border image to be drawn beyond the border box. |
| 7726 | |
| 7727 | // (1) It's important we not check whether there's a border-image |
| 7728 | // since the style hint for a change in border image doesn't cause |
| 7729 | // reflow, and that's probably more important than optimizing the |
| 7730 | // overflow areas for the silly case of border-image-outset without |
| 7731 | // border-image |
| 7732 | // (2) It's important that we not check whether the border-image |
| 7733 | // is actually loaded, since that would require us to reflow when |
| 7734 | // the image loads. |
| 7735 | const nsStyleBorder* styleBorder = aFrame->StyleBorder(); |
| 7736 | nsMargin outsetMargin = styleBorder->GetImageOutset(); |
| 7737 | |
| 7738 | if (outsetMargin != nsMargin(0, 0, 0, 0)) { |
| 7739 | nsRect outsetRect(nsPoint(0, 0), aNewSize); |
| 7740 | outsetRect.Inflate(outsetMargin); |
| 7741 | r.UnionRect(r, outsetRect); |
| 7742 | } |
| 7743 | |
| 7744 | // Note that we don't remove the outlineInnerRect if a frame loses outline |
| 7745 | // style. That would require an extra property lookup for every frame, |
| 7746 | // or a new frame state bit to track whether a property had been stored, |
| 7747 | // or something like that. It's not worth doing that here. At most it's |
| 7748 | // only one heap-allocated rect per frame and it will be cleaned up when |
| 7749 | // the frame dies. |
| 7750 | |
| 7751 | if (SVGIntegrationUtils::UsingOverflowAffectingEffects(aFrame)) { |
| 7752 | SetOrUpdateRectValuedProperty(aFrame, nsIFrame::PreEffectsBBoxProperty(), |
| 7753 | r); |
| 7754 | r = SVGIntegrationUtils::ComputePostEffectsInkOverflowRect(aFrame, r); |
| 7755 | } |
| 7756 | |
| 7757 | return r; |
| 7758 | } |
| 7759 | |
| 7760 | void nsIFrame::SetPosition(const nsPoint& aPt) { |
| 7761 | if (mRect.TopLeft() == aPt) { |
| 7762 | return; |
| 7763 | } |
| 7764 | mRect.MoveTo(aPt); |
| 7765 | MarkNeedsDisplayItemRebuild(); |
| 7766 | } |
| 7767 | |
| 7768 | void nsIFrame::MovePositionBy(const nsPoint& aTranslation) { |
| 7769 | nsPoint position = GetNormalPosition() + aTranslation; |
| 7770 | |
| 7771 | const nsMargin* computedOffsets = nullptr; |
| 7772 | if (IsRelativelyOrStickyPositioned()) { |
| 7773 | computedOffsets = GetProperty(nsIFrame::ComputedOffsetProperty()); |
| 7774 | } |
| 7775 | ReflowInput::ApplyRelativePositioning( |
| 7776 | this, computedOffsets ? *computedOffsets : nsMargin(), &position); |
| 7777 | SetPosition(position); |
| 7778 | } |
| 7779 | |
| 7780 | nsRect nsIFrame::GetNormalRect() const { |
| 7781 | // It might be faster to first check |
| 7782 | // StyleDisplay()->IsRelativelyPositionedStyle(). |
| 7783 | bool hasProperty; |
| 7784 | nsPoint normalPosition = GetProperty(NormalPositionProperty(), &hasProperty); |
| 7785 | if (hasProperty) { |
| 7786 | return nsRect(normalPosition, GetSize()); |
| 7787 | } |
| 7788 | return GetRect(); |
| 7789 | } |
| 7790 | |
| 7791 | nsRect nsIFrame::GetBoundingClientRect() { |
| 7792 | return nsLayoutUtils::GetAllInFlowRectsUnion( |
| 7793 | this, nsLayoutUtils::GetContainingBlockForClientRect(this), |
| 7794 | nsLayoutUtils::RECTS_ACCOUNT_FOR_TRANSFORMS); |
| 7795 | } |
| 7796 | |
| 7797 | nsPoint nsIFrame::GetPositionIgnoringScrolling() const { |
| 7798 | return GetParent() ? GetParent()->GetPositionOfChildIgnoringScrolling(this) |
| 7799 | : GetPosition(); |
| 7800 | } |
| 7801 | |
| 7802 | nsRect nsIFrame::GetOverflowRect(OverflowType aType) const { |
| 7803 | // Note that in some cases the overflow area might not have been |
| 7804 | // updated (yet) to reflect any outline set on the frame or the area |
| 7805 | // of child frames. That's OK because any reflow that updates these |
| 7806 | // areas will invalidate the appropriate area, so any (mis)uses of |
| 7807 | // this method will be fixed up. |
| 7808 | |
| 7809 | if (mOverflow.mType == OverflowStorageType::Large) { |
| 7810 | // there is an overflow rect, and it's not stored as deltas but as |
| 7811 | // a separately-allocated rect |
| 7812 | return GetOverflowAreasProperty()->Overflow(aType); |
| 7813 | } |
| 7814 | |
| 7815 | if (aType == OverflowType::Ink && |
| 7816 | mOverflow.mType != OverflowStorageType::None) { |
| 7817 | return InkOverflowFromDeltas(); |
| 7818 | } |
| 7819 | |
| 7820 | return GetRectRelativeToSelf(); |
| 7821 | } |
| 7822 | |
| 7823 | OverflowAreas nsIFrame::GetOverflowAreas() const { |
| 7824 | if (mOverflow.mType == OverflowStorageType::Large) { |
| 7825 | // there is an overflow rect, and it's not stored as deltas but as |
| 7826 | // a separately-allocated rect |
| 7827 | return *GetOverflowAreasProperty(); |
| 7828 | } |
| 7829 | |
| 7830 | return OverflowAreas(InkOverflowFromDeltas(), |
| 7831 | nsRect(nsPoint(0, 0), GetSize())); |
| 7832 | } |
| 7833 | |
| 7834 | OverflowAreas nsIFrame::GetOverflowAreasRelativeToSelf() const { |
| 7835 | if (IsTransformed()) { |
| 7836 | if (OverflowAreas* preTransformOverflows = |
| 7837 | GetProperty(PreTransformOverflowAreasProperty())) { |
| 7838 | return *preTransformOverflows; |
| 7839 | } |
| 7840 | } |
| 7841 | return GetOverflowAreas(); |
| 7842 | } |
| 7843 | |
| 7844 | OverflowAreas nsIFrame::GetOverflowAreasRelativeToParent() const { |
| 7845 | return GetOverflowAreas() + GetPosition(); |
| 7846 | } |
| 7847 | |
| 7848 | OverflowAreas nsIFrame::GetActualAndNormalOverflowAreasRelativeToParent() |
| 7849 | const { |
| 7850 | if (MOZ_LIKELY(!IsRelativelyOrStickyPositioned())(__builtin_expect(!!(!IsRelativelyOrStickyPositioned()), 1))) { |
| 7851 | return GetOverflowAreasRelativeToParent(); |
| 7852 | } |
| 7853 | |
| 7854 | const OverflowAreas overflows = GetOverflowAreas(); |
| 7855 | OverflowAreas actualAndNormalOverflows = overflows + GetPosition(); |
| 7856 | actualAndNormalOverflows.UnionWith(overflows + GetNormalPosition()); |
| 7857 | return actualAndNormalOverflows; |
| 7858 | } |
| 7859 | |
| 7860 | nsRect nsIFrame::ScrollableOverflowRectRelativeToParent() const { |
| 7861 | return ScrollableOverflowRect() + GetPosition(); |
| 7862 | } |
| 7863 | |
| 7864 | nsRect nsIFrame::InkOverflowRectRelativeToParent() const { |
| 7865 | return InkOverflowRect() + GetPosition(); |
| 7866 | } |
| 7867 | |
| 7868 | nsRect nsIFrame::ScrollableOverflowRectRelativeToSelf() const { |
| 7869 | if (IsTransformed()) { |
| 7870 | if (OverflowAreas* preTransformOverflows = |
| 7871 | GetProperty(PreTransformOverflowAreasProperty())) { |
| 7872 | return preTransformOverflows->ScrollableOverflow(); |
| 7873 | } |
| 7874 | } |
| 7875 | return ScrollableOverflowRect(); |
| 7876 | } |
| 7877 | |
| 7878 | nsRect nsIFrame::InkOverflowRectRelativeToSelf() const { |
| 7879 | if (IsTransformed()) { |
| 7880 | if (OverflowAreas* preTransformOverflows = |
| 7881 | GetProperty(PreTransformOverflowAreasProperty())) { |
| 7882 | return preTransformOverflows->InkOverflow(); |
| 7883 | } |
| 7884 | } |
| 7885 | return InkOverflowRect(); |
| 7886 | } |
| 7887 | |
| 7888 | nsRect nsIFrame::PreEffectsInkOverflowRect() const { |
| 7889 | nsRect* r = GetProperty(nsIFrame::PreEffectsBBoxProperty()); |
| 7890 | return r ? *r : InkOverflowRectRelativeToSelf(); |
| 7891 | } |
| 7892 | |
| 7893 | bool nsIFrame::UpdateOverflow() { |
| 7894 | MOZ_ASSERT(FrameMaintainsOverflow(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(FrameMaintainsOverflow())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(FrameMaintainsOverflow()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("FrameMaintainsOverflow()" " (" "Non-display SVG do not maintain ink overflow rects" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7895); AnnotateMozCrashReason("MOZ_ASSERT" "(" "FrameMaintainsOverflow()" ") (" "Non-display SVG do not maintain ink overflow rects" ")" ); do { *((volatile int*)__null) = 7895; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 7895 | "Non-display SVG do not maintain ink overflow rects")do { static_assert( mozilla::detail::AssertionConditionType< decltype(FrameMaintainsOverflow())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(FrameMaintainsOverflow()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("FrameMaintainsOverflow()" " (" "Non-display SVG do not maintain ink overflow rects" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 7895); AnnotateMozCrashReason("MOZ_ASSERT" "(" "FrameMaintainsOverflow()" ") (" "Non-display SVG do not maintain ink overflow rects" ")" ); do { *((volatile int*)__null) = 7895; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 7896 | |
| 7897 | nsRect rect(nsPoint(0, 0), GetSize()); |
| 7898 | OverflowAreas overflowAreas(rect, rect); |
| 7899 | |
| 7900 | if (!ComputeCustomOverflow(overflowAreas)) { |
| 7901 | // If updating overflow wasn't supported by this frame, then it should |
| 7902 | // have scheduled any necessary reflows. We can return false to say nothing |
| 7903 | // changed, and wait for reflow to correct it. |
| 7904 | return false; |
| 7905 | } |
| 7906 | |
| 7907 | UnionChildOverflow(overflowAreas); |
| 7908 | |
| 7909 | if (FinishAndStoreOverflow(overflowAreas, GetSize())) { |
| 7910 | if (nsView* view = GetView()) { |
| 7911 | // Make sure the frame's view is properly sized. |
| 7912 | nsViewManager* vm = view->GetViewManager(); |
| 7913 | vm->ResizeView(view, overflowAreas.InkOverflow(), true); |
| 7914 | } |
| 7915 | |
| 7916 | return true; |
| 7917 | } |
| 7918 | |
| 7919 | // Frames that combine their 3d transform with their ancestors |
| 7920 | // only compute a pre-transform overflow rect, and then contribute |
| 7921 | // to the normal overflow rect of the preserve-3d root. Always return |
| 7922 | // true here so that we propagate changes up to the root for final |
| 7923 | // calculation. |
| 7924 | return Combines3DTransformWithAncestors(); |
| 7925 | } |
| 7926 | |
| 7927 | /* virtual */ |
| 7928 | bool nsIFrame::ComputeCustomOverflow(OverflowAreas& aOverflowAreas) { |
| 7929 | return true; |
| 7930 | } |
| 7931 | |
| 7932 | bool nsIFrame::DoesClipChildrenInBothAxes() const { |
| 7933 | nsIScrollableFrame* sf = do_QueryFrame(this); |
| 7934 | const nsStyleDisplay* display = StyleDisplay(); |
| 7935 | return sf || (display->mOverflowX == StyleOverflow::Clip && |
| 7936 | display->mOverflowY == StyleOverflow::Clip); |
| 7937 | } |
| 7938 | |
| 7939 | /* virtual */ |
| 7940 | void nsIFrame::UnionChildOverflow(OverflowAreas& aOverflowAreas) { |
| 7941 | if (!DoesClipChildrenInBothAxes()) { |
| 7942 | nsLayoutUtils::UnionChildOverflow(this, aOverflowAreas); |
| 7943 | } |
| 7944 | } |
| 7945 | |
| 7946 | // Return true if this form control element's preferred size property (but not |
| 7947 | // percentage max size property) contains a percentage value that should be |
| 7948 | // resolved against zero when calculating its min-content contribution in the |
| 7949 | // corresponding axis. |
| 7950 | // |
| 7951 | // For proper replaced elements, the percentage value in both their max size |
| 7952 | // property or preferred size property should be resolved against zero. This is |
| 7953 | // handled in IsPercentageResolvedAgainstZero(). |
| 7954 | inline static bool FormControlShrinksForPercentSize(const nsIFrame* aFrame) { |
| 7955 | if (!aFrame->IsReplaced()) { |
| 7956 | // Quick test to reject most frames. |
| 7957 | return false; |
| 7958 | } |
| 7959 | |
| 7960 | LayoutFrameType fType = aFrame->Type(); |
| 7961 | if (fType == LayoutFrameType::Meter || fType == LayoutFrameType::Progress || |
| 7962 | fType == LayoutFrameType::Range) { |
| 7963 | // progress, meter and range do have this shrinking behavior |
| 7964 | // FIXME: Maybe these should be nsIFormControlFrame? |
| 7965 | return true; |
| 7966 | } |
| 7967 | |
| 7968 | if (!static_cast<nsIFormControlFrame*>(do_QueryFrame(aFrame))) { |
| 7969 | // Not a form control. This includes fieldsets, which do not |
| 7970 | // shrink. |
| 7971 | return false; |
| 7972 | } |
| 7973 | |
| 7974 | if (fType == LayoutFrameType::GfxButtonControl || |
| 7975 | fType == LayoutFrameType::HTMLButtonControl) { |
| 7976 | // Buttons don't have this shrinking behavior. (Note that color |
| 7977 | // inputs do, even though they inherit from button, so we can't use |
| 7978 | // do_QueryFrame here.) |
| 7979 | return false; |
| 7980 | } |
| 7981 | |
| 7982 | return true; |
| 7983 | } |
| 7984 | |
| 7985 | bool nsIFrame::IsPercentageResolvedAgainstZero( |
| 7986 | const StyleSize& aStyleSize, const StyleMaxSize& aStyleMaxSize) const { |
| 7987 | const bool sizeHasPercent = aStyleSize.HasPercent(); |
| 7988 | return ((sizeHasPercent || aStyleMaxSize.HasPercent()) && |
| 7989 | HasReplacedSizing()) || |
| 7990 | (sizeHasPercent && FormControlShrinksForPercentSize(this)); |
| 7991 | } |
| 7992 | |
| 7993 | // Summary of the Cyclic-Percentage Intrinsic Size Contribution Rules: |
| 7994 | // |
| 7995 | // Element Type | Replaced | Non-replaced |
| 7996 | // Contribution Type | min-content max-content | min-content max-content |
| 7997 | // --------------------------------------------------------------------------- |
| 7998 | // min size | zero zero | zero zero |
| 7999 | // max & preferred size | zero initial | initial initial |
| 8000 | // |
| 8001 | // https://drafts.csswg.org/css-sizing-3/#cyclic-percentage-contribution |
| 8002 | bool nsIFrame::IsPercentageResolvedAgainstZero(const LengthPercentage& aSize, |
| 8003 | SizeProperty aProperty) const { |
| 8004 | // Early return to avoid calling the virtual function, IsFrameOfType(). |
| 8005 | if (aProperty == SizeProperty::MinSize) { |
| 8006 | return true; |
| 8007 | } |
| 8008 | |
| 8009 | const bool hasPercentOnReplaced = aSize.HasPercent() && HasReplacedSizing(); |
| 8010 | if (aProperty == SizeProperty::MaxSize) { |
| 8011 | return hasPercentOnReplaced; |
| 8012 | } |
| 8013 | |
| 8014 | MOZ_ASSERT(aProperty == SizeProperty::Size)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aProperty == SizeProperty::Size)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aProperty == SizeProperty::Size ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aProperty == SizeProperty::Size", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8014); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aProperty == SizeProperty::Size" ")"); do { *((volatile int*)__null) = 8014; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8015 | return hasPercentOnReplaced || |
| 8016 | (aSize.HasPercent() && FormControlShrinksForPercentSize(this)); |
| 8017 | } |
| 8018 | |
| 8019 | bool nsIFrame::IsBlockWrapper() const { |
| 8020 | auto pseudoType = Style()->GetPseudoType(); |
| 8021 | return pseudoType == PseudoStyleType::mozBlockInsideInlineWrapper || |
| 8022 | pseudoType == PseudoStyleType::buttonContent || |
| 8023 | pseudoType == PseudoStyleType::cellContent || |
| 8024 | pseudoType == PseudoStyleType::columnSpanWrapper; |
| 8025 | } |
| 8026 | |
| 8027 | bool nsIFrame::IsBlockFrameOrSubclass() const { |
| 8028 | const nsBlockFrame* thisAsBlock = do_QueryFrame(this); |
| 8029 | return !!thisAsBlock; |
| 8030 | } |
| 8031 | |
| 8032 | bool nsIFrame::IsImageFrameOrSubclass() const { |
| 8033 | const nsImageFrame* asImage = do_QueryFrame(this); |
| 8034 | return !!asImage; |
| 8035 | } |
| 8036 | |
| 8037 | bool nsIFrame::IsSubgrid() const { |
| 8038 | return IsGridContainerFrame() && |
| 8039 | static_cast<const nsGridContainerFrame*>(this)->IsSubgrid(); |
| 8040 | } |
| 8041 | |
| 8042 | static nsIFrame* GetNearestBlockContainer(nsIFrame* frame) { |
| 8043 | while (!frame->IsBlockContainer()) { |
| 8044 | frame = frame->GetParent(); |
| 8045 | NS_ASSERTION(do { if (!(frame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "How come we got to the root frame without seeing a containing block?" , "frame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8047); MOZ_PretendNoReturn(); } } while (0) |
| 8046 | frame,do { if (!(frame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "How come we got to the root frame without seeing a containing block?" , "frame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8047); MOZ_PretendNoReturn(); } } while (0) |
| 8047 | "How come we got to the root frame without seeing a containing block?")do { if (!(frame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "How come we got to the root frame without seeing a containing block?" , "frame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8047); MOZ_PretendNoReturn(); } } while (0); |
| 8048 | } |
| 8049 | return frame; |
| 8050 | } |
| 8051 | |
| 8052 | bool nsIFrame::IsBlockContainer() const { |
| 8053 | // The block wrappers we use to wrap blocks inside inlines aren't |
| 8054 | // described in the CSS spec. We need to make them not be containing |
| 8055 | // blocks. |
| 8056 | // Since the parent of such a block is either a normal block or |
| 8057 | // another such pseudo, this shouldn't cause anything bad to happen. |
| 8058 | // Also the anonymous blocks inside table cells are not containing blocks. |
| 8059 | // |
| 8060 | // If we ever start skipping table row groups from being containing blocks, |
| 8061 | // you need to remove the StickyScrollContainer hack referencing bug 1421660. |
| 8062 | return !IsLineParticipant() && !IsBlockWrapper() && !IsSubgrid() && |
| 8063 | // Table rows are not containing blocks either |
| 8064 | !IsTableRowFrame(); |
| 8065 | } |
| 8066 | |
| 8067 | nsIFrame* nsIFrame::GetContainingBlock( |
| 8068 | uint32_t aFlags, const nsStyleDisplay* aStyleDisplay) const { |
| 8069 | MOZ_ASSERT(aStyleDisplay == StyleDisplay())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aStyleDisplay == StyleDisplay())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aStyleDisplay == StyleDisplay ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aStyleDisplay == StyleDisplay()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8069); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aStyleDisplay == StyleDisplay()" ")"); do { *((volatile int*)__null) = 8069; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8070 | |
| 8071 | // Keep this in sync with MightBeContainingBlockFor in ReflowInput.cpp. |
| 8072 | |
| 8073 | if (!GetParent()) { |
| 8074 | return nullptr; |
| 8075 | } |
| 8076 | // MathML frames might have absolute positioning style, but they would |
| 8077 | // still be in-flow. So we have to check to make sure that the frame |
| 8078 | // is really out-of-flow too. |
| 8079 | nsIFrame* f; |
| 8080 | if (IsAbsolutelyPositioned(aStyleDisplay)) { |
| 8081 | f = GetParent(); // the parent is always the containing block |
| 8082 | } else { |
| 8083 | f = GetNearestBlockContainer(GetParent()); |
| 8084 | } |
| 8085 | |
| 8086 | if (aFlags & SKIP_SCROLLED_FRAME && f && |
| 8087 | f->Style()->GetPseudoType() == PseudoStyleType::scrolledContent) { |
| 8088 | f = f->GetParent(); |
| 8089 | } |
| 8090 | return f; |
| 8091 | } |
| 8092 | |
| 8093 | #ifdef DEBUG_FRAME_DUMP1 |
| 8094 | |
| 8095 | Maybe<uint32_t> nsIFrame::ContentIndexInContainer(const nsIFrame* aFrame) { |
| 8096 | if (nsIContent* content = aFrame->GetContent()) { |
| 8097 | return content->ComputeIndexInParentContent(); |
| 8098 | } |
| 8099 | return Nothing(); |
| 8100 | } |
| 8101 | |
| 8102 | nsAutoCString nsIFrame::ListTag() const { |
| 8103 | nsAutoString tmp; |
| 8104 | GetFrameName(tmp); |
| 8105 | |
| 8106 | nsAutoCString tag; |
| 8107 | tag += NS_ConvertUTF16toUTF8(tmp); |
| 8108 | tag += nsPrintfCString("@%p", static_cast<const void*>(this)); |
| 8109 | return tag; |
| 8110 | } |
| 8111 | |
| 8112 | std::string nsIFrame::ConvertToString(const LogicalRect& aRect, |
| 8113 | const WritingMode aWM, ListFlags aFlags) { |
| 8114 | if (aFlags.contains(ListFlag::DisplayInCSSPixels)) { |
| 8115 | // Abuse CSSRect to store all LogicalRect's dimensions in CSS pixels. |
| 8116 | return ToString(mozilla::CSSRect(CSSPixel::FromAppUnits(aRect.IStart(aWM)), |
| 8117 | CSSPixel::FromAppUnits(aRect.BStart(aWM)), |
| 8118 | CSSPixel::FromAppUnits(aRect.ISize(aWM)), |
| 8119 | CSSPixel::FromAppUnits(aRect.BSize(aWM)))); |
| 8120 | } |
| 8121 | return ToString(aRect); |
| 8122 | } |
| 8123 | |
| 8124 | std::string nsIFrame::ConvertToString(const LogicalSize& aSize, |
| 8125 | const WritingMode aWM, ListFlags aFlags) { |
| 8126 | if (aFlags.contains(ListFlag::DisplayInCSSPixels)) { |
| 8127 | // Abuse CSSSize to store all LogicalSize's dimensions in CSS pixels. |
| 8128 | return ToString(CSSSize(CSSPixel::FromAppUnits(aSize.ISize(aWM)), |
| 8129 | CSSPixel::FromAppUnits(aSize.BSize(aWM)))); |
| 8130 | } |
| 8131 | return ToString(aSize); |
| 8132 | } |
| 8133 | |
| 8134 | // Debugging |
| 8135 | void nsIFrame::ListGeneric(nsACString& aTo, const char* aPrefix, |
| 8136 | ListFlags aFlags) const { |
| 8137 | aTo += aPrefix; |
| 8138 | aTo += ListTag(); |
| 8139 | if (HasView()) { |
| 8140 | aTo += nsPrintfCString(" [view=%p]", static_cast<void*>(GetView())); |
| 8141 | } |
| 8142 | if (GetParent()) { |
| 8143 | aTo += nsPrintfCString(" parent=%p", static_cast<void*>(GetParent())); |
| 8144 | } |
| 8145 | if (GetNextSibling()) { |
| 8146 | aTo += nsPrintfCString(" next=%p", static_cast<void*>(GetNextSibling())); |
| 8147 | } |
| 8148 | if (GetPrevContinuation()) { |
| 8149 | bool fluid = GetPrevInFlow() == GetPrevContinuation(); |
| 8150 | aTo += nsPrintfCString(" prev-%s=%p", fluid ? "in-flow" : "continuation", |
| 8151 | static_cast<void*>(GetPrevContinuation())); |
| 8152 | } |
| 8153 | if (GetNextContinuation()) { |
| 8154 | bool fluid = GetNextInFlow() == GetNextContinuation(); |
| 8155 | aTo += nsPrintfCString(" next-%s=%p", fluid ? "in-flow" : "continuation", |
| 8156 | static_cast<void*>(GetNextContinuation())); |
| 8157 | } |
| 8158 | if (const nsAtom* const autoPageValue = |
| 8159 | GetProperty(AutoPageValueProperty())) { |
| 8160 | aTo += " AutoPage="; |
| 8161 | aTo += nsAtomCString(autoPageValue); |
| 8162 | } |
| 8163 | if (const nsIFrame::PageValues* const pageValues = |
| 8164 | GetProperty(PageValuesProperty())) { |
| 8165 | aTo += " PageValues={"; |
| 8166 | if (pageValues->mStartPageValue) { |
| 8167 | aTo += nsAtomCString(pageValues->mStartPageValue); |
| 8168 | } else { |
| 8169 | aTo += "<null>"; |
| 8170 | } |
| 8171 | aTo += ", "; |
| 8172 | if (pageValues->mEndPageValue) { |
| 8173 | aTo += nsAtomCString(pageValues->mEndPageValue); |
| 8174 | } else { |
| 8175 | aTo += "<null>"; |
| 8176 | } |
| 8177 | aTo += "}"; |
| 8178 | } |
| 8179 | void* IBsibling = GetProperty(IBSplitSibling()); |
| 8180 | if (IBsibling) { |
| 8181 | aTo += nsPrintfCString(" IBSplitSibling=%p", IBsibling); |
| 8182 | } |
| 8183 | void* IBprevsibling = GetProperty(IBSplitPrevSibling()); |
| 8184 | if (IBprevsibling) { |
| 8185 | aTo += nsPrintfCString(" IBSplitPrevSibling=%p", IBprevsibling); |
| 8186 | } |
| 8187 | if (nsLayoutUtils::FontSizeInflationEnabled(PresContext())) { |
| 8188 | if (HasAnyStateBits(NS_FRAME_FONT_INFLATION_FLOW_ROOT)) { |
| 8189 | aTo += nsPrintfCString(" FFR"); |
| 8190 | if (nsFontInflationData* data = |
| 8191 | nsFontInflationData::FindFontInflationDataFor(this)) { |
| 8192 | aTo += nsPrintfCString( |
| 8193 | ",enabled=%s,UIS=%s", data->InflationEnabled() ? "yes" : "no", |
| 8194 | ConvertToString(data->UsableISize(), aFlags).c_str()); |
| 8195 | } |
| 8196 | } |
| 8197 | if (HasAnyStateBits(NS_FRAME_FONT_INFLATION_CONTAINER)) { |
| 8198 | aTo += nsPrintfCString(" FIC"); |
| 8199 | } |
| 8200 | aTo += nsPrintfCString(" FI=%f", nsLayoutUtils::FontSizeInflationFor(this)); |
| 8201 | } |
| 8202 | aTo += nsPrintfCString(" %s", ConvertToString(mRect, aFlags).c_str()); |
| 8203 | |
| 8204 | mozilla::WritingMode wm = GetWritingMode(); |
| 8205 | if (wm.IsVertical() || wm.IsBidiRTL()) { |
| 8206 | aTo += |
| 8207 | nsPrintfCString(" wm=%s logical-size=(%s)", ToString(wm).c_str(), |
| 8208 | ConvertToString(GetLogicalSize(), wm, aFlags).c_str()); |
| 8209 | } |
| 8210 | |
| 8211 | nsIFrame* parent = GetParent(); |
| 8212 | if (parent) { |
| 8213 | WritingMode pWM = parent->GetWritingMode(); |
| 8214 | if (pWM.IsVertical() || pWM.IsBidiRTL()) { |
| 8215 | nsSize containerSize = parent->mRect.Size(); |
| 8216 | LogicalRect lr(pWM, mRect, containerSize); |
| 8217 | aTo += nsPrintfCString(" parent-wm=%s cs=(%s) logical-rect=%s", |
| 8218 | ToString(pWM).c_str(), |
| 8219 | ConvertToString(containerSize, aFlags).c_str(), |
| 8220 | ConvertToString(lr, pWM, aFlags).c_str()); |
| 8221 | } |
| 8222 | } |
| 8223 | nsIFrame* f = const_cast<nsIFrame*>(this); |
| 8224 | if (f->HasOverflowAreas()) { |
| 8225 | nsRect io = f->InkOverflowRect(); |
| 8226 | if (!io.IsEqualEdges(mRect)) { |
| 8227 | aTo += nsPrintfCString(" ink-overflow=%s", |
| 8228 | ConvertToString(io, aFlags).c_str()); |
| 8229 | } |
| 8230 | nsRect so = f->ScrollableOverflowRect(); |
| 8231 | if (!so.IsEqualEdges(mRect)) { |
| 8232 | aTo += nsPrintfCString(" scr-overflow=%s", |
| 8233 | ConvertToString(so, aFlags).c_str()); |
| 8234 | } |
| 8235 | } |
| 8236 | if (OverflowAreas* preTransformOverflows = |
| 8237 | f->GetProperty(PreTransformOverflowAreasProperty())) { |
| 8238 | nsRect io = preTransformOverflows->InkOverflow(); |
| 8239 | if (!io.IsEqualEdges(mRect) && |
| 8240 | (!f->HasOverflowAreas() || !io.IsEqualEdges(f->InkOverflowRect()))) { |
| 8241 | aTo += nsPrintfCString(" pre-transform-ink-overflow=%s", |
| 8242 | ConvertToString(io, aFlags).c_str()); |
| 8243 | } |
| 8244 | nsRect so = preTransformOverflows->ScrollableOverflow(); |
| 8245 | if (!so.IsEqualEdges(mRect) && |
| 8246 | (!f->HasOverflowAreas() || |
| 8247 | !so.IsEqualEdges(f->ScrollableOverflowRect()))) { |
| 8248 | aTo += nsPrintfCString(" pre-transform-scr-overflow=%s", |
| 8249 | ConvertToString(so, aFlags).c_str()); |
| 8250 | } |
| 8251 | } |
| 8252 | bool hasNormalPosition; |
| 8253 | nsPoint normalPosition = GetNormalPosition(&hasNormalPosition); |
| 8254 | if (hasNormalPosition) { |
| 8255 | aTo += nsPrintfCString(" normal-position=%s", |
| 8256 | ConvertToString(normalPosition, aFlags).c_str()); |
| 8257 | } |
| 8258 | if (HasProperty(BidiDataProperty())) { |
| 8259 | FrameBidiData bidi = GetBidiData(); |
| 8260 | aTo += nsPrintfCString(" bidi(%d,%d,%d)", bidi.baseLevel.Value(), |
| 8261 | bidi.embeddingLevel.Value(), |
| 8262 | bidi.precedingControl.Value()); |
| 8263 | } |
| 8264 | if (IsTransformed()) { |
| 8265 | aTo += nsPrintfCString(" transformed"); |
| 8266 | } |
| 8267 | if (ChildrenHavePerspective()) { |
| 8268 | aTo += nsPrintfCString(" perspective"); |
| 8269 | } |
| 8270 | if (Extend3DContext()) { |
| 8271 | aTo += nsPrintfCString(" extend-3d"); |
| 8272 | } |
| 8273 | if (Combines3DTransformWithAncestors()) { |
| 8274 | aTo += nsPrintfCString(" combines-3d-transform-with-ancestors"); |
| 8275 | } |
| 8276 | if (mContent) { |
| 8277 | aTo += nsPrintfCString(" [content=%p]", static_cast<void*>(mContent)); |
| 8278 | } |
| 8279 | aTo += nsPrintfCString(" [cs=%p", static_cast<void*>(mComputedStyle)); |
| 8280 | if (mComputedStyle) { |
| 8281 | auto pseudoType = mComputedStyle->GetPseudoType(); |
| 8282 | aTo += ToString(pseudoType).c_str(); |
| 8283 | } |
| 8284 | aTo += "]"; |
| 8285 | |
| 8286 | auto contentVisibility = StyleDisplay()->ContentVisibility(*this); |
| 8287 | if (contentVisibility != StyleContentVisibility::Visible) { |
| 8288 | aTo += nsPrintfCString(" [content-visibility="); |
| 8289 | if (contentVisibility == StyleContentVisibility::Auto) { |
| 8290 | aTo += "auto, "_ns; |
| 8291 | } else if (contentVisibility == StyleContentVisibility::Hidden) { |
| 8292 | aTo += "hiden, "_ns; |
| 8293 | } |
| 8294 | |
| 8295 | if (HidesContent()) { |
| 8296 | aTo += "HidesContent=hidden"_ns; |
| 8297 | } else { |
| 8298 | aTo += "HidesContent=visibile"_ns; |
| 8299 | } |
| 8300 | aTo += "]"; |
| 8301 | } |
| 8302 | |
| 8303 | if (IsFrameModified()) { |
| 8304 | aTo += nsPrintfCString(" modified"); |
| 8305 | } |
| 8306 | |
| 8307 | if (HasModifiedDescendants()) { |
| 8308 | aTo += nsPrintfCString(" has-modified-descendants"); |
| 8309 | } |
| 8310 | } |
| 8311 | |
| 8312 | void nsIFrame::List(FILE* out, const char* aPrefix, ListFlags aFlags) const { |
| 8313 | nsCString str; |
| 8314 | ListGeneric(str, aPrefix, aFlags); |
| 8315 | fprintf_stderr(out, "%s\n", str.get()); |
| 8316 | } |
| 8317 | |
| 8318 | void nsIFrame::ListTextRuns(FILE* out) const { |
| 8319 | nsTHashSet<const void*> seen; |
| 8320 | ListTextRuns(out, seen); |
| 8321 | } |
| 8322 | |
| 8323 | void nsIFrame::ListTextRuns(FILE* out, nsTHashSet<const void*>& aSeen) const { |
| 8324 | for (const auto& childList : ChildLists()) { |
| 8325 | for (const nsIFrame* kid : childList.mList) { |
| 8326 | kid->ListTextRuns(out, aSeen); |
| 8327 | } |
| 8328 | } |
| 8329 | } |
| 8330 | |
| 8331 | void nsIFrame::ListMatchedRules(FILE* out, const char* aPrefix) const { |
| 8332 | nsTArray<const StyleLockedStyleRule*> rawRuleList; |
| 8333 | Servo_ComputedValues_GetStyleRuleList(mComputedStyle, &rawRuleList); |
| 8334 | for (const StyleLockedStyleRule* rawRule : rawRuleList) { |
| 8335 | nsAutoCString ruleText; |
| 8336 | Servo_StyleRule_GetCssText(rawRule, &ruleText); |
| 8337 | fprintf_stderr(out, "%s%s\n", aPrefix, ruleText.get()); |
| 8338 | } |
| 8339 | } |
| 8340 | |
| 8341 | void nsIFrame::ListWithMatchedRules(FILE* out, const char* aPrefix) const { |
| 8342 | fprintf_stderr(out, "%s%s\n", aPrefix, ListTag().get()); |
| 8343 | |
| 8344 | nsCString rulePrefix; |
| 8345 | rulePrefix += aPrefix; |
| 8346 | rulePrefix += " "; |
| 8347 | ListMatchedRules(out, rulePrefix.get()); |
| 8348 | } |
| 8349 | |
| 8350 | nsresult nsIFrame::GetFrameName(nsAString& aResult) const { |
| 8351 | return MakeFrameName(u"Frame"_ns, aResult); |
| 8352 | } |
| 8353 | |
| 8354 | nsresult nsIFrame::MakeFrameName(const nsAString& aType, |
| 8355 | nsAString& aResult) const { |
| 8356 | aResult = aType; |
| 8357 | if (mContent && !mContent->IsText()) { |
| 8358 | nsAutoString buf; |
| 8359 | mContent->NodeInfo()->NameAtom()->ToString(buf); |
| 8360 | if (nsAtom* id = mContent->GetID()) { |
| 8361 | buf.AppendLiteral(" id="); |
| 8362 | buf.Append(nsDependentAtomString(id)); |
| 8363 | } |
| 8364 | if (IsSubDocumentFrame()) { |
| 8365 | nsAutoString src; |
| 8366 | mContent->AsElement()->GetAttr(nsGkAtoms::src, src); |
| 8367 | buf.AppendLiteral(" src="); |
| 8368 | buf.Append(src); |
| 8369 | } |
| 8370 | aResult.Append('('); |
| 8371 | aResult.Append(buf); |
| 8372 | aResult.Append(')'); |
| 8373 | } |
| 8374 | aResult.Append('('); |
| 8375 | Maybe<uint32_t> index = ContentIndexInContainer(this); |
| 8376 | if (index.isSome()) { |
| 8377 | aResult.AppendInt(*index); |
| 8378 | } else { |
| 8379 | aResult.AppendInt(-1); |
| 8380 | } |
| 8381 | aResult.Append(')'); |
| 8382 | return NS_OK; |
| 8383 | } |
| 8384 | |
| 8385 | void nsIFrame::DumpFrameTree() const { |
| 8386 | PresShell()->GetRootFrame()->List(stderrstderr); |
| 8387 | } |
| 8388 | |
| 8389 | void nsIFrame::DumpFrameTreeInCSSPixels() const { |
| 8390 | PresShell()->GetRootFrame()->List(stderrstderr, "", ListFlag::DisplayInCSSPixels); |
| 8391 | } |
| 8392 | |
| 8393 | void nsIFrame::DumpFrameTreeLimited() const { List(stderrstderr); } |
| 8394 | void nsIFrame::DumpFrameTreeLimitedInCSSPixels() const { |
| 8395 | List(stderrstderr, "", ListFlag::DisplayInCSSPixels); |
| 8396 | } |
| 8397 | |
| 8398 | #endif |
| 8399 | |
| 8400 | bool nsIFrame::IsVisibleForPainting() const { |
| 8401 | return StyleVisibility()->IsVisible(); |
| 8402 | } |
| 8403 | |
| 8404 | bool nsIFrame::IsVisibleOrCollapsedForPainting() const { |
| 8405 | return StyleVisibility()->IsVisibleOrCollapsed(); |
| 8406 | } |
| 8407 | |
| 8408 | /* virtual */ |
| 8409 | bool nsIFrame::IsEmpty() { |
| 8410 | return IsHiddenByContentVisibilityOfInFlowParentForLayout(); |
| 8411 | } |
| 8412 | |
| 8413 | bool nsIFrame::CachedIsEmpty() { |
| 8414 | MOZ_ASSERT(!HasAnyStateBits(NS_FRAME_IS_DIRTY) ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout()" " (" "Must only be called on reflowed lines or those hidden by " "content-visibility." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8417); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout()" ") (" "Must only be called on reflowed lines or those hidden by " "content-visibility." ")"); do { *((volatile int*)__null) = 8417 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 8415 | IsHiddenByContentVisibilityOfInFlowParentForLayout(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout()" " (" "Must only be called on reflowed lines or those hidden by " "content-visibility." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8417); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout()" ") (" "Must only be called on reflowed lines or those hidden by " "content-visibility." ")"); do { *((volatile int*)__null) = 8417 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 8416 | "Must only be called on reflowed lines or those hidden by "do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout()" " (" "Must only be called on reflowed lines or those hidden by " "content-visibility." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8417); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout()" ") (" "Must only be called on reflowed lines or those hidden by " "content-visibility." ")"); do { *((volatile int*)__null) = 8417 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 8417 | "content-visibility.")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout()" " (" "Must only be called on reflowed lines or those hidden by " "content-visibility." ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8417); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasAnyStateBits(NS_FRAME_IS_DIRTY) || IsHiddenByContentVisibilityOfInFlowParentForLayout()" ") (" "Must only be called on reflowed lines or those hidden by " "content-visibility." ")"); do { *((volatile int*)__null) = 8417 ; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 8418 | return IsEmpty(); |
| 8419 | } |
| 8420 | |
| 8421 | /* virtual */ |
| 8422 | bool nsIFrame::IsSelfEmpty() { |
| 8423 | return IsHiddenByContentVisibilityOfInFlowParentForLayout(); |
| 8424 | } |
| 8425 | |
| 8426 | nsresult nsIFrame::GetSelectionController(nsPresContext* aPresContext, |
| 8427 | nsISelectionController** aSelCon) { |
| 8428 | if (!aPresContext || !aSelCon) return NS_ERROR_INVALID_ARG; |
| 8429 | |
| 8430 | nsIFrame* frame = this; |
| 8431 | while (frame && frame->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION)) { |
| 8432 | nsITextControlFrame* tcf = do_QueryFrame(frame); |
| 8433 | if (tcf) { |
| 8434 | return tcf->GetOwnedSelectionController(aSelCon); |
| 8435 | } |
| 8436 | frame = frame->GetParent(); |
| 8437 | } |
| 8438 | |
| 8439 | *aSelCon = do_AddRef(aPresContext->PresShell()).take(); |
| 8440 | return NS_OK; |
| 8441 | } |
| 8442 | |
| 8443 | already_AddRefed<nsFrameSelection> nsIFrame::GetFrameSelection() { |
| 8444 | RefPtr<nsFrameSelection> fs = |
| 8445 | const_cast<nsFrameSelection*>(GetConstFrameSelection()); |
| 8446 | return fs.forget(); |
| 8447 | } |
| 8448 | |
| 8449 | const nsFrameSelection* nsIFrame::GetConstFrameSelection() const { |
| 8450 | nsIFrame* frame = const_cast<nsIFrame*>(this); |
| 8451 | while (frame && frame->HasAnyStateBits(NS_FRAME_INDEPENDENT_SELECTION)) { |
| 8452 | nsITextControlFrame* tcf = do_QueryFrame(frame); |
| 8453 | if (tcf) { |
| 8454 | return tcf->GetOwnedFrameSelection(); |
| 8455 | } |
| 8456 | frame = frame->GetParent(); |
| 8457 | } |
| 8458 | |
| 8459 | return PresShell()->ConstFrameSelection(); |
| 8460 | } |
| 8461 | |
| 8462 | bool nsIFrame::IsFrameSelected() const { |
| 8463 | NS_ASSERTION(!GetContent() || GetContent()->IsMaybeSelected(),do { if (!(!GetContent() || GetContent()->IsMaybeSelected( ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "use the public IsSelected() instead" , "!GetContent() || GetContent()->IsMaybeSelected()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8464); MOZ_PretendNoReturn(); } } while (0) |
| 8464 | "use the public IsSelected() instead")do { if (!(!GetContent() || GetContent()->IsMaybeSelected( ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "use the public IsSelected() instead" , "!GetContent() || GetContent()->IsMaybeSelected()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8464); MOZ_PretendNoReturn(); } } while (0); |
| 8465 | return GetContent()->IsSelected(0, GetContent()->GetChildCount()); |
| 8466 | } |
| 8467 | |
| 8468 | nsresult nsIFrame::GetPointFromOffset(int32_t inOffset, nsPoint* outPoint) { |
| 8469 | MOZ_ASSERT(outPoint != nullptr, "Null parameter")do { static_assert( mozilla::detail::AssertionConditionType< decltype(outPoint != nullptr)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(outPoint != nullptr))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("outPoint != nullptr" " (" "Null parameter" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8469); AnnotateMozCrashReason("MOZ_ASSERT" "(" "outPoint != nullptr" ") (" "Null parameter" ")"); do { *((volatile int*)__null) = 8469; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 8470 | nsRect contentRect = GetContentRectRelativeToSelf(); |
| 8471 | nsPoint pt = contentRect.TopLeft(); |
| 8472 | if (mContent) { |
| 8473 | nsIContent* newContent = mContent->GetParent(); |
| 8474 | if (newContent) { |
| 8475 | const int32_t newOffset = newContent->ComputeIndexOf_Deprecated(mContent); |
| 8476 | |
| 8477 | // Find the direction of the frame from the EmbeddingLevelProperty, |
| 8478 | // which is the resolved bidi level set in |
| 8479 | // nsBidiPresUtils::ResolveParagraph (odd levels = right-to-left). |
| 8480 | // If the embedding level isn't set, just use the CSS direction |
| 8481 | // property. |
| 8482 | bool hasBidiData; |
| 8483 | FrameBidiData bidiData = GetProperty(BidiDataProperty(), &hasBidiData); |
| 8484 | bool isRTL = hasBidiData |
| 8485 | ? bidiData.embeddingLevel.IsRTL() |
| 8486 | : StyleVisibility()->mDirection == StyleDirection::Rtl; |
| 8487 | if ((!isRTL && inOffset > newOffset) || |
| 8488 | (isRTL && inOffset <= newOffset)) { |
| 8489 | pt = contentRect.TopRight(); |
| 8490 | } |
| 8491 | } |
| 8492 | } |
| 8493 | *outPoint = pt; |
| 8494 | return NS_OK; |
| 8495 | } |
| 8496 | |
| 8497 | nsresult nsIFrame::GetCharacterRectsInRange(int32_t aInOffset, int32_t aLength, |
| 8498 | nsTArray<nsRect>& aOutRect) { |
| 8499 | /* no text */ |
| 8500 | return NS_ERROR_FAILURE; |
| 8501 | } |
| 8502 | |
| 8503 | nsresult nsIFrame::GetChildFrameContainingOffset(int32_t inContentOffset, |
| 8504 | bool inHint, |
| 8505 | int32_t* outFrameContentOffset, |
| 8506 | nsIFrame** outChildFrame) { |
| 8507 | MOZ_ASSERT(outChildFrame && outFrameContentOffset, "Null parameter")do { static_assert( mozilla::detail::AssertionConditionType< decltype(outChildFrame && outFrameContentOffset)>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(outChildFrame && outFrameContentOffset))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("outChildFrame && outFrameContentOffset" " (" "Null parameter" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8507); AnnotateMozCrashReason("MOZ_ASSERT" "(" "outChildFrame && outFrameContentOffset" ") (" "Null parameter" ")"); do { *((volatile int*)__null) = 8507; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 8508 | *outFrameContentOffset = (int32_t)inHint; |
| 8509 | // the best frame to reflect any given offset would be a visible frame if |
| 8510 | // possible i.e. we are looking for a valid frame to place the blinking caret |
| 8511 | nsRect rect = GetRect(); |
| 8512 | if (!rect.width || !rect.height) { |
| 8513 | // if we have a 0 width or height then lets look for another frame that |
| 8514 | // possibly has the same content. If we have no frames in flow then just |
| 8515 | // let us return 'this' frame |
| 8516 | nsIFrame* nextFlow = GetNextInFlow(); |
| 8517 | if (nextFlow) |
| 8518 | return nextFlow->GetChildFrameContainingOffset( |
| 8519 | inContentOffset, inHint, outFrameContentOffset, outChildFrame); |
| 8520 | } |
| 8521 | *outChildFrame = this; |
| 8522 | return NS_OK; |
| 8523 | } |
| 8524 | |
| 8525 | // |
| 8526 | // What I've pieced together about this routine: |
| 8527 | // Starting with a block frame (from which a line frame can be gotten) |
| 8528 | // and a line number, drill down and get the first/last selectable |
| 8529 | // frame on that line, depending on aPos->mDirection. |
| 8530 | // aOutSideLimit != 0 means ignore aLineStart, instead work from |
| 8531 | // the end (if > 0) or beginning (if < 0). |
| 8532 | // |
| 8533 | static nsresult GetNextPrevLineFromBlockFrame(PeekOffsetStruct* aPos, |
| 8534 | nsIFrame* aBlockFrame, |
| 8535 | int32_t aLineStart, |
| 8536 | int8_t aOutSideLimit) { |
| 8537 | MOZ_ASSERT(aPos)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPos)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aPos))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("aPos", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8537); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPos" ")"); do { *((volatile int*)__null) = 8537; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8538 | MOZ_ASSERT(aBlockFrame)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aBlockFrame)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aBlockFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aBlockFrame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8538); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aBlockFrame" ")"); do { *((volatile int*)__null) = 8538; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8539 | |
| 8540 | nsPresContext* pc = aBlockFrame->PresContext(); |
| 8541 | |
| 8542 | // magic numbers: aLineStart will be -1 for end of block, 0 will be start of |
| 8543 | // block. |
| 8544 | |
| 8545 | aPos->mResultFrame = nullptr; |
| 8546 | aPos->mResultContent = nullptr; |
| 8547 | aPos->mAttach = aPos->mDirection == eDirNext ? CARET_ASSOCIATE_AFTER |
| 8548 | : CARET_ASSOCIATE_BEFORE; |
| 8549 | |
| 8550 | AutoAssertNoDomMutations guard; |
| 8551 | nsILineIterator* it = aBlockFrame->GetLineIterator(); |
| 8552 | if (!it) { |
| 8553 | return NS_ERROR_FAILURE; |
| 8554 | } |
| 8555 | int32_t searchingLine = aLineStart; |
| 8556 | int32_t countLines = it->GetNumLines(); |
| 8557 | if (aOutSideLimit > 0) { // start at end |
| 8558 | searchingLine = countLines; |
| 8559 | } else if (aOutSideLimit < 0) { // start at beginning |
| 8560 | searchingLine = -1; //"next" will be 0 |
| 8561 | } else if ((aPos->mDirection == eDirPrevious && searchingLine == 0) || |
| 8562 | (aPos->mDirection == eDirNext && |
| 8563 | searchingLine >= (countLines - 1))) { |
| 8564 | // Not found. |
| 8565 | return NS_ERROR_FAILURE; |
| 8566 | } |
| 8567 | nsIFrame* resultFrame = nullptr; |
| 8568 | nsIFrame* farStoppingFrame = nullptr; // we keep searching until we find a |
| 8569 | // "this" frame then we go to next line |
| 8570 | nsIFrame* nearStoppingFrame = nullptr; // if we are backing up from edge, |
| 8571 | // stop here |
| 8572 | nsIFrame* firstFrame; |
| 8573 | nsIFrame* lastFrame; |
| 8574 | bool isBeforeFirstFrame, isAfterLastFrame; |
| 8575 | bool found = false; |
| 8576 | |
| 8577 | nsresult result = NS_OK; |
| 8578 | while (!found) { |
| 8579 | if (aPos->mDirection == eDirPrevious) |
| 8580 | searchingLine--; |
| 8581 | else |
| 8582 | searchingLine++; |
| 8583 | if ((aPos->mDirection == eDirPrevious && searchingLine < 0) || |
| 8584 | (aPos->mDirection == eDirNext && searchingLine >= countLines)) { |
| 8585 | // we need to jump to new block frame. |
| 8586 | return NS_ERROR_FAILURE; |
| 8587 | } |
| 8588 | auto line = it->GetLine(searchingLine).unwrap(); |
| 8589 | if (!line.mNumFramesOnLine) { |
| 8590 | continue; |
| 8591 | } |
| 8592 | lastFrame = firstFrame = line.mFirstFrameOnLine; |
| 8593 | for (int32_t lineFrameCount = line.mNumFramesOnLine; lineFrameCount > 1; |
| 8594 | lineFrameCount--) { |
| 8595 | lastFrame = lastFrame->GetNextSibling(); |
| 8596 | if (!lastFrame) { |
| 8597 | NS_ERROR("GetLine promised more frames than could be found")do { NS_DebugBreak(NS_DEBUG_ASSERTION, "GetLine promised more frames than could be found" , "Error", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8597); MOZ_PretendNoReturn(); } while (0); |
| 8598 | return NS_ERROR_FAILURE; |
| 8599 | } |
| 8600 | } |
| 8601 | nsIFrame::GetLastLeaf(&lastFrame); |
| 8602 | |
| 8603 | if (aPos->mDirection == eDirNext) { |
| 8604 | nearStoppingFrame = firstFrame; |
| 8605 | farStoppingFrame = lastFrame; |
| 8606 | } else { |
| 8607 | nearStoppingFrame = lastFrame; |
| 8608 | farStoppingFrame = firstFrame; |
| 8609 | } |
| 8610 | nsPoint offset; |
| 8611 | nsView* view; // used for call of get offset from view |
| 8612 | aBlockFrame->GetOffsetFromView(offset, &view); |
| 8613 | nsPoint newDesiredPos = |
| 8614 | aPos->mDesiredCaretPos - |
| 8615 | offset; // get desired position into blockframe coords |
| 8616 | result = it->FindFrameAt(searchingLine, newDesiredPos, &resultFrame, |
| 8617 | &isBeforeFirstFrame, &isAfterLastFrame); |
| 8618 | if (NS_FAILED(result)((bool)(__builtin_expect(!!(NS_FAILED_impl(result)), 0)))) { |
| 8619 | continue; |
| 8620 | } |
| 8621 | |
| 8622 | if (resultFrame) { |
| 8623 | // check to see if this is ANOTHER blockframe inside the other one if so |
| 8624 | // then call into its lines |
| 8625 | if (resultFrame->CanProvideLineIterator()) { |
| 8626 | aPos->mResultFrame = resultFrame; |
| 8627 | return NS_OK; |
| 8628 | } |
| 8629 | // resultFrame is not a block frame |
| 8630 | result = NS_ERROR_FAILURE; |
Value stored to 'result' is never read | |
| 8631 | |
| 8632 | nsCOMPtr<nsIFrameEnumerator> frameTraversal; |
| 8633 | result = NS_NewFrameTraversal( |
| 8634 | getter_AddRefs(frameTraversal), pc, resultFrame, ePostOrder, |
| 8635 | false, // aVisual |
| 8636 | aPos->mOptions.contains(PeekOffsetOption::StopAtScroller), |
| 8637 | false, // aFollowOOFs |
| 8638 | false // aSkipPopupChecks |
| 8639 | ); |
| 8640 | if (NS_FAILED(result)((bool)(__builtin_expect(!!(NS_FAILED_impl(result)), 0)))) { |
| 8641 | return result; |
| 8642 | } |
| 8643 | |
| 8644 | auto FoundValidFrame = [aPos](const nsIFrame::ContentOffsets& aOffsets, |
| 8645 | const nsIFrame* aFrame) { |
| 8646 | if (!aOffsets.content) { |
| 8647 | return false; |
| 8648 | } |
| 8649 | if (!aFrame->IsSelectable(nullptr)) { |
| 8650 | return false; |
| 8651 | } |
| 8652 | if (aPos->mOptions.contains(PeekOffsetOption::ForceEditableRegion) && |
| 8653 | !aOffsets.content->IsEditable()) { |
| 8654 | return false; |
| 8655 | } |
| 8656 | return true; |
| 8657 | }; |
| 8658 | |
| 8659 | nsIFrame* storeOldResultFrame = resultFrame; |
| 8660 | while (!found) { |
| 8661 | nsPoint point; |
| 8662 | nsRect tempRect = resultFrame->GetRect(); |
| 8663 | nsPoint offset; |
| 8664 | nsView* view; // used for call of get offset from view |
| 8665 | resultFrame->GetOffsetFromView(offset, &view); |
| 8666 | if (!view) { |
| 8667 | return NS_ERROR_FAILURE; |
| 8668 | } |
| 8669 | if (resultFrame->GetWritingMode().IsVertical()) { |
| 8670 | point.y = aPos->mDesiredCaretPos.y; |
| 8671 | point.x = tempRect.width + offset.x; |
| 8672 | } else { |
| 8673 | point.y = tempRect.height + offset.y; |
| 8674 | point.x = aPos->mDesiredCaretPos.x; |
| 8675 | } |
| 8676 | |
| 8677 | if (!resultFrame->HasView()) { |
| 8678 | nsView* view; |
| 8679 | nsPoint offset; |
| 8680 | resultFrame->GetOffsetFromView(offset, &view); |
| 8681 | nsIFrame::ContentOffsets offsets = |
| 8682 | resultFrame->GetContentOffsetsFromPoint(point - offset); |
| 8683 | aPos->mResultContent = offsets.content; |
| 8684 | aPos->mContentOffset = offsets.offset; |
| 8685 | aPos->mAttach = offsets.associate; |
| 8686 | if (FoundValidFrame(offsets, resultFrame)) { |
| 8687 | found = true; |
| 8688 | break; |
| 8689 | } |
| 8690 | } |
| 8691 | |
| 8692 | if (aPos->mDirection == eDirPrevious && |
| 8693 | resultFrame == farStoppingFrame) { |
| 8694 | break; |
| 8695 | } |
| 8696 | if (aPos->mDirection == eDirNext && resultFrame == nearStoppingFrame) { |
| 8697 | break; |
| 8698 | } |
| 8699 | // always try previous on THAT line if that fails go the other way |
| 8700 | resultFrame = frameTraversal->Traverse(/* aForward = */ false); |
| 8701 | if (!resultFrame) { |
| 8702 | return NS_ERROR_FAILURE; |
| 8703 | } |
| 8704 | } |
| 8705 | |
| 8706 | if (!found) { |
| 8707 | resultFrame = storeOldResultFrame; |
| 8708 | |
| 8709 | result = NS_NewFrameTraversal( |
| 8710 | getter_AddRefs(frameTraversal), pc, resultFrame, eLeaf, |
| 8711 | false, // aVisual |
| 8712 | aPos->mOptions.contains(PeekOffsetOption::StopAtScroller), |
| 8713 | false, // aFollowOOFs |
| 8714 | false // aSkipPopupChecks |
| 8715 | ); |
| 8716 | } |
| 8717 | while (!found) { |
| 8718 | nsPoint point = aPos->mDesiredCaretPos; |
| 8719 | nsView* view; |
| 8720 | nsPoint offset; |
| 8721 | resultFrame->GetOffsetFromView(offset, &view); |
| 8722 | nsIFrame::ContentOffsets offsets = |
| 8723 | resultFrame->GetContentOffsetsFromPoint(point - offset); |
| 8724 | aPos->mResultContent = offsets.content; |
| 8725 | aPos->mContentOffset = offsets.offset; |
| 8726 | aPos->mAttach = offsets.associate; |
| 8727 | if (FoundValidFrame(offsets, resultFrame)) { |
| 8728 | found = true; |
| 8729 | if (resultFrame == farStoppingFrame) |
| 8730 | aPos->mAttach = CARET_ASSOCIATE_BEFORE; |
| 8731 | else |
| 8732 | aPos->mAttach = CARET_ASSOCIATE_AFTER; |
| 8733 | break; |
| 8734 | } |
| 8735 | if (aPos->mDirection == eDirPrevious && |
| 8736 | (resultFrame == nearStoppingFrame)) |
| 8737 | break; |
| 8738 | if (aPos->mDirection == eDirNext && (resultFrame == farStoppingFrame)) |
| 8739 | break; |
| 8740 | // previous didnt work now we try "next" |
| 8741 | nsIFrame* tempFrame = frameTraversal->Traverse(/* aForward = */ true); |
| 8742 | if (!tempFrame) break; |
| 8743 | resultFrame = tempFrame; |
| 8744 | } |
| 8745 | aPos->mResultFrame = resultFrame; |
| 8746 | } else { |
| 8747 | // we need to jump to new block frame. |
| 8748 | aPos->mAmount = eSelectLine; |
| 8749 | aPos->mStartOffset = 0; |
| 8750 | aPos->mAttach = aPos->mDirection == eDirNext ? CARET_ASSOCIATE_BEFORE |
| 8751 | : CARET_ASSOCIATE_AFTER; |
| 8752 | if (aPos->mDirection == eDirPrevious) |
| 8753 | aPos->mStartOffset = -1; // start from end |
| 8754 | return aBlockFrame->PeekOffset(aPos); |
| 8755 | } |
| 8756 | } |
| 8757 | return NS_OK; |
| 8758 | } |
| 8759 | |
| 8760 | nsIFrame::CaretPosition nsIFrame::GetExtremeCaretPosition(bool aStart) { |
| 8761 | CaretPosition result; |
| 8762 | |
| 8763 | FrameTarget targetFrame = DrillDownToSelectionFrame(this, !aStart, 0); |
| 8764 | FrameContentRange range = GetRangeForFrame(targetFrame.frame); |
| 8765 | result.mResultContent = range.content; |
| 8766 | result.mContentOffset = aStart ? range.start : range.end; |
| 8767 | return result; |
| 8768 | } |
| 8769 | |
| 8770 | // If this is a preformatted text frame, see if it ends with a newline |
| 8771 | static nsContentAndOffset FindLineBreakInText(nsIFrame* aFrame, |
| 8772 | nsDirection aDirection) { |
| 8773 | nsContentAndOffset result; |
| 8774 | |
| 8775 | if (aFrame->IsGeneratedContentFrame() || |
| 8776 | !aFrame->HasSignificantTerminalNewline()) { |
| 8777 | return result; |
| 8778 | } |
| 8779 | |
| 8780 | int32_t endOffset = aFrame->GetOffsets().second; |
| 8781 | result.mContent = aFrame->GetContent(); |
| 8782 | result.mOffset = endOffset - (aDirection == eDirPrevious ? 0 : 1); |
| 8783 | return result; |
| 8784 | } |
| 8785 | |
| 8786 | // Find the first (or last) descendant of the given frame |
| 8787 | // which is either a block-level frame or a BRFrame, or some other kind of break |
| 8788 | // which stops the line. |
| 8789 | static nsContentAndOffset FindLineBreakingFrame(nsIFrame* aFrame, |
| 8790 | nsDirection aDirection) { |
| 8791 | nsContentAndOffset result; |
| 8792 | |
| 8793 | if (aFrame->IsGeneratedContentFrame()) { |
| 8794 | return result; |
| 8795 | } |
| 8796 | |
| 8797 | // Treat form controls as inline leaves |
| 8798 | // XXX we really need a way to determine whether a frame is inline-level |
| 8799 | if (static_cast<nsIFormControlFrame*>(do_QueryFrame(aFrame))) { |
| 8800 | return result; |
| 8801 | } |
| 8802 | |
| 8803 | // Check the frame itself |
| 8804 | // Fall through block-in-inline split frames because their mContent is |
| 8805 | // the content of the inline frames they were created from. The |
| 8806 | // first/last child of such frames is the real block frame we're |
| 8807 | // looking for. |
| 8808 | if ((aFrame->IsBlockOutside() && |
| 8809 | !aFrame->HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT)) || |
| 8810 | aFrame->IsBrFrame()) { |
| 8811 | nsIContent* content = aFrame->GetContent(); |
| 8812 | result.mContent = content->GetParent(); |
| 8813 | // In some cases (bug 310589, bug 370174) we end up here with a null |
| 8814 | // content. This probably shouldn't ever happen, but since it sometimes |
| 8815 | // does, we want to avoid crashing here. |
| 8816 | NS_ASSERTION(result.mContent, "Unexpected orphan content")do { if (!(result.mContent)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Unexpected orphan content", "result.mContent", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8816); MOZ_PretendNoReturn(); } } while (0); |
| 8817 | if (result.mContent) { |
| 8818 | result.mOffset = result.mContent->ComputeIndexOf_Deprecated(content) + |
| 8819 | (aDirection == eDirPrevious ? 1 : 0); |
| 8820 | } |
| 8821 | return result; |
| 8822 | } |
| 8823 | |
| 8824 | result = FindLineBreakInText(aFrame, aDirection); |
| 8825 | if (result.mContent) { |
| 8826 | return result; |
| 8827 | } |
| 8828 | |
| 8829 | // Iterate over children and call ourselves recursively |
| 8830 | if (aDirection == eDirPrevious) { |
| 8831 | nsIFrame* child = aFrame->PrincipalChildList().LastChild(); |
| 8832 | while (child && !result.mContent) { |
| 8833 | result = FindLineBreakingFrame(child, aDirection); |
| 8834 | child = child->GetPrevSibling(); |
| 8835 | } |
| 8836 | } else { // eDirNext |
| 8837 | nsIFrame* child = aFrame->PrincipalChildList().FirstChild(); |
| 8838 | while (child && !result.mContent) { |
| 8839 | result = FindLineBreakingFrame(child, aDirection); |
| 8840 | child = child->GetNextSibling(); |
| 8841 | } |
| 8842 | } |
| 8843 | return result; |
| 8844 | } |
| 8845 | |
| 8846 | nsresult nsIFrame::PeekOffsetForParagraph(PeekOffsetStruct* aPos) { |
| 8847 | nsIFrame* frame = this; |
| 8848 | nsContentAndOffset blockFrameOrBR; |
| 8849 | blockFrameOrBR.mContent = nullptr; |
| 8850 | bool reachedLimit = frame->IsBlockOutside() || IsEditingHost(frame); |
| 8851 | |
| 8852 | auto traverse = [&aPos](nsIFrame* current) { |
| 8853 | return aPos->mDirection == eDirPrevious ? current->GetPrevSibling() |
| 8854 | : current->GetNextSibling(); |
| 8855 | }; |
| 8856 | |
| 8857 | // Go through containing frames until reaching a block frame. |
| 8858 | // In each step, search the previous (or next) siblings for the closest |
| 8859 | // "stop frame" (a block frame or a BRFrame). |
| 8860 | // If found, set it to be the selection boundary and abort. |
| 8861 | while (!reachedLimit) { |
| 8862 | nsIFrame* parent = frame->GetParent(); |
| 8863 | // Treat a frame associated with the root content as if it were a block |
| 8864 | // frame. |
| 8865 | if (!frame->mContent || !frame->mContent->GetParent()) { |
| 8866 | reachedLimit = true; |
| 8867 | break; |
| 8868 | } |
| 8869 | |
| 8870 | if (aPos->mDirection == eDirNext) { |
| 8871 | // Try to find our own line-break before looking at our siblings. |
| 8872 | blockFrameOrBR = FindLineBreakInText(frame, eDirNext); |
| 8873 | } |
| 8874 | |
| 8875 | nsIFrame* sibling = traverse(frame); |
| 8876 | while (sibling && !blockFrameOrBR.mContent) { |
| 8877 | blockFrameOrBR = FindLineBreakingFrame(sibling, aPos->mDirection); |
| 8878 | sibling = traverse(sibling); |
| 8879 | } |
| 8880 | if (blockFrameOrBR.mContent) { |
| 8881 | aPos->mResultContent = blockFrameOrBR.mContent; |
| 8882 | aPos->mContentOffset = blockFrameOrBR.mOffset; |
| 8883 | break; |
| 8884 | } |
| 8885 | frame = parent; |
| 8886 | reachedLimit = frame && (frame->IsBlockOutside() || IsEditingHost(frame)); |
| 8887 | } |
| 8888 | |
| 8889 | if (reachedLimit) { // no "stop frame" found |
| 8890 | aPos->mResultContent = frame->GetContent(); |
| 8891 | if (aPos->mDirection == eDirPrevious) { |
| 8892 | aPos->mContentOffset = 0; |
| 8893 | } else if (aPos->mResultContent) { |
| 8894 | aPos->mContentOffset = aPos->mResultContent->GetChildCount(); |
| 8895 | } |
| 8896 | } |
| 8897 | return NS_OK; |
| 8898 | } |
| 8899 | |
| 8900 | // Determine movement direction relative to frame |
| 8901 | static bool IsMovingInFrameDirection(const nsIFrame* frame, |
| 8902 | nsDirection aDirection, bool aVisual) { |
| 8903 | bool isReverseDirection = |
| 8904 | aVisual && nsBidiPresUtils::IsReversedDirectionFrame(frame); |
| 8905 | return aDirection == (isReverseDirection ? eDirPrevious : eDirNext); |
| 8906 | } |
| 8907 | |
| 8908 | // Determines "are we looking for a boundary between whitespace and |
| 8909 | // non-whitespace (in the direction we're moving in)". It is true when moving |
| 8910 | // forward and looking for a beginning of a word, or when moving backwards and |
| 8911 | // looking for an end of a word. |
| 8912 | static bool ShouldWordSelectionEatSpace(const PeekOffsetStruct& aPos) { |
| 8913 | if (aPos.mWordMovementType != eDefaultBehavior) { |
| 8914 | // aPos->mWordMovementType possible values: |
| 8915 | // eEndWord: eat the space if we're moving backwards |
| 8916 | // eStartWord: eat the space if we're moving forwards |
| 8917 | return (aPos.mWordMovementType == eEndWord) == |
| 8918 | (aPos.mDirection == eDirPrevious); |
| 8919 | } |
| 8920 | // Use the hidden preference which is based on operating system |
| 8921 | // behavior. This pref only affects whether moving forward by word |
| 8922 | // should go to the end of this word or start of the next word. When |
| 8923 | // going backwards, the start of the word is always used, on every |
| 8924 | // operating system. |
| 8925 | return aPos.mDirection == eDirNext && |
| 8926 | StaticPrefs::layout_word_select_eat_space_to_next_word(); |
| 8927 | } |
| 8928 | |
| 8929 | enum class OffsetIsAtLineEdge : bool { No, Yes }; |
| 8930 | |
| 8931 | static void SetPeekResultFromFrame(PeekOffsetStruct& aPos, nsIFrame* aFrame, |
| 8932 | int32_t aOffset, |
| 8933 | OffsetIsAtLineEdge aAtLineEdge) { |
| 8934 | FrameContentRange range = GetRangeForFrame(aFrame); |
| 8935 | aPos.mResultFrame = aFrame; |
| 8936 | aPos.mResultContent = range.content; |
| 8937 | // Output offset is relative to content, not frame |
| 8938 | aPos.mContentOffset = |
| 8939 | aOffset < 0 ? range.end + aOffset + 1 : range.start + aOffset; |
| 8940 | if (aAtLineEdge == OffsetIsAtLineEdge::Yes) { |
| 8941 | aPos.mAttach = aPos.mContentOffset == range.start ? CARET_ASSOCIATE_AFTER |
| 8942 | : CARET_ASSOCIATE_BEFORE; |
| 8943 | } |
| 8944 | } |
| 8945 | |
| 8946 | void nsIFrame::SelectablePeekReport::TransferTo(PeekOffsetStruct& aPos) const { |
| 8947 | return SetPeekResultFromFrame(aPos, mFrame, mOffset, OffsetIsAtLineEdge::No); |
| 8948 | } |
| 8949 | |
| 8950 | nsIFrame::SelectablePeekReport::SelectablePeekReport( |
| 8951 | const mozilla::GenericErrorResult<nsresult>&& aErr) { |
| 8952 | MOZ_ASSERT(NS_FAILED(aErr.operator nsresult()))do { static_assert( mozilla::detail::AssertionConditionType< decltype(((bool)(__builtin_expect(!!(NS_FAILED_impl(aErr.operator nsresult())), 0))))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(((bool)(__builtin_expect(!!( NS_FAILED_impl(aErr.operator nsresult())), 0)))))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("((bool)(__builtin_expect(!!(NS_FAILED_impl(aErr.operator nsresult())), 0)))" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 8952); AnnotateMozCrashReason("MOZ_ASSERT" "(" "((bool)(__builtin_expect(!!(NS_FAILED_impl(aErr.operator nsresult())), 0)))" ")"); do { *((volatile int*)__null) = 8952; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 8953 | // Return an empty report |
| 8954 | } |
| 8955 | |
| 8956 | nsresult nsIFrame::PeekOffsetForCharacter(PeekOffsetStruct* aPos, |
| 8957 | int32_t aOffset) { |
| 8958 | SelectablePeekReport current{this, aOffset}; |
| 8959 | |
| 8960 | nsIFrame::FrameSearchResult peekSearchState = CONTINUE; |
| 8961 | |
| 8962 | while (peekSearchState != FOUND) { |
| 8963 | const bool movingInFrameDirection = IsMovingInFrameDirection( |
| 8964 | current.mFrame, aPos->mDirection, |
| 8965 | aPos->mOptions.contains(PeekOffsetOption::Visual)); |
| 8966 | |
| 8967 | if (current.mJumpedLine) { |
| 8968 | // If we jumped lines, it's as if we found a character, but we still need |
| 8969 | // to eat non-renderable content on the new line. |
| 8970 | peekSearchState = current.PeekOffsetNoAmount(movingInFrameDirection); |
| 8971 | } else { |
| 8972 | PeekOffsetCharacterOptions options; |
| 8973 | options.mRespectClusters = aPos->mAmount == eSelectCluster; |
| 8974 | peekSearchState = |
| 8975 | current.PeekOffsetCharacter(movingInFrameDirection, options); |
| 8976 | } |
| 8977 | |
| 8978 | current.mMovedOverNonSelectableText |= |
| 8979 | peekSearchState == CONTINUE_UNSELECTABLE; |
| 8980 | |
| 8981 | if (peekSearchState != FOUND) { |
| 8982 | SelectablePeekReport next = current.mFrame->GetFrameFromDirection(*aPos); |
| 8983 | if (next.Failed()) { |
| 8984 | return NS_ERROR_FAILURE; |
| 8985 | } |
| 8986 | next.mJumpedLine |= current.mJumpedLine; |
| 8987 | next.mMovedOverNonSelectableText |= current.mMovedOverNonSelectableText; |
| 8988 | next.mHasSelectableFrame |= current.mHasSelectableFrame; |
| 8989 | current = next; |
| 8990 | } |
| 8991 | |
| 8992 | // Found frame, but because we moved over non selectable text we want |
| 8993 | // the offset to be at the frame edge. Note that if we are extending the |
| 8994 | // selection, this doesn't matter. |
| 8995 | if (peekSearchState == FOUND && current.mMovedOverNonSelectableText && |
| 8996 | (!aPos->mOptions.contains(PeekOffsetOption::Extend) || |
| 8997 | current.mHasSelectableFrame)) { |
| 8998 | auto [start, end] = current.mFrame->GetOffsets(); |
| 8999 | current.mOffset = aPos->mDirection == eDirNext ? 0 : end - start; |
| 9000 | } |
| 9001 | } |
| 9002 | |
| 9003 | // Set outputs |
| 9004 | current.TransferTo(*aPos); |
| 9005 | // If we're dealing with a text frame and moving backward positions us at |
| 9006 | // the end of that line, decrease the offset by one to make sure that |
| 9007 | // we're placed before the linefeed character on the previous line. |
| 9008 | if (current.mOffset < 0 && current.mJumpedLine && |
| 9009 | aPos->mDirection == eDirPrevious && |
| 9010 | current.mFrame->HasSignificantTerminalNewline() && |
| 9011 | !current.mIgnoredBrFrame) { |
| 9012 | --aPos->mContentOffset; |
| 9013 | } |
| 9014 | return NS_OK; |
| 9015 | } |
| 9016 | |
| 9017 | nsresult nsIFrame::PeekOffsetForWord(PeekOffsetStruct* aPos, int32_t aOffset) { |
| 9018 | SelectablePeekReport current{this, aOffset}; |
| 9019 | bool shouldStopAtHardBreak = |
| 9020 | aPos->mWordMovementType == eDefaultBehavior && |
| 9021 | StaticPrefs::layout_word_select_eat_space_to_next_word(); |
| 9022 | bool wordSelectEatSpace = ShouldWordSelectionEatSpace(*aPos); |
| 9023 | |
| 9024 | PeekWordState state; |
| 9025 | while (true) { |
| 9026 | bool movingInFrameDirection = IsMovingInFrameDirection( |
| 9027 | current.mFrame, aPos->mDirection, |
| 9028 | aPos->mOptions.contains(PeekOffsetOption::Visual)); |
| 9029 | |
| 9030 | FrameSearchResult searchResult = current.mFrame->PeekOffsetWord( |
| 9031 | movingInFrameDirection, wordSelectEatSpace, |
| 9032 | aPos->mOptions.contains(PeekOffsetOption::IsKeyboardSelect), |
| 9033 | ¤t.mOffset, &state, |
| 9034 | !aPos->mOptions.contains(PeekOffsetOption::PreserveSpaces)); |
| 9035 | if (searchResult == FOUND) { |
| 9036 | break; |
| 9037 | } |
| 9038 | |
| 9039 | SelectablePeekReport next = [&]() { |
| 9040 | PeekOffsetOptions options = aPos->mOptions; |
| 9041 | if (state.mSawInlineCharacter) { |
| 9042 | // If we've already found a character, we don't want to stop at |
| 9043 | // placeholder frame boundary if there is in the word. |
| 9044 | options += PeekOffsetOption::StopAtPlaceholder; |
| 9045 | } |
| 9046 | return current.mFrame->GetFrameFromDirection(aPos->mDirection, options); |
| 9047 | }(); |
| 9048 | if (next.Failed()) { |
| 9049 | // If we've crossed the line boundary, check to make sure that we |
| 9050 | // have not consumed a trailing newline as whitespace if it's |
| 9051 | // significant. |
| 9052 | if (next.mJumpedLine && wordSelectEatSpace && |
| 9053 | current.mFrame->HasSignificantTerminalNewline() && |
| 9054 | current.mFrame->StyleText()->mWhiteSpace != |
| 9055 | StyleWhiteSpace::PreLine) { |
| 9056 | current.mOffset -= 1; |
| 9057 | } |
| 9058 | break; |
| 9059 | } |
| 9060 | |
| 9061 | if ((next.mJumpedLine || next.mFoundPlaceholder) && !wordSelectEatSpace && |
| 9062 | state.mSawBeforeType) { |
| 9063 | // We can't jump lines if we're looking for whitespace following |
| 9064 | // non-whitespace, and we already encountered non-whitespace. |
| 9065 | break; |
| 9066 | } |
| 9067 | |
| 9068 | if (shouldStopAtHardBreak && next.mJumpedHardBreak) { |
| 9069 | /** |
| 9070 | * Prev, always: Jump and stop right there |
| 9071 | * Next, saw inline: just stop |
| 9072 | * Next, no inline: Jump and consume whitespaces |
| 9073 | */ |
| 9074 | if (aPos->mDirection == eDirPrevious) { |
| 9075 | // Try moving to the previous line if exists |
| 9076 | current.TransferTo(*aPos); |
| 9077 | current.mFrame->PeekOffsetForCharacter(aPos, current.mOffset); |
| 9078 | return NS_OK; |
| 9079 | } |
| 9080 | if (state.mSawInlineCharacter || current.mJumpedHardBreak) { |
| 9081 | if (current.mFrame->HasSignificantTerminalNewline()) { |
| 9082 | current.mOffset -= 1; |
| 9083 | } |
| 9084 | current.TransferTo(*aPos); |
| 9085 | return NS_OK; |
| 9086 | } |
| 9087 | // Mark the state as whitespace and continue |
| 9088 | state.Update(false, true); |
| 9089 | } |
| 9090 | |
| 9091 | if (next.mJumpedLine) { |
| 9092 | state.mContext.Truncate(); |
| 9093 | } |
| 9094 | current = next; |
| 9095 | // Jumping a line is equivalent to encountering whitespace |
| 9096 | // This affects only when it already met an actual character |
| 9097 | if (wordSelectEatSpace && next.mJumpedLine) { |
| 9098 | state.SetSawBeforeType(); |
| 9099 | } |
| 9100 | } |
| 9101 | |
| 9102 | // Set outputs |
| 9103 | current.TransferTo(*aPos); |
| 9104 | return NS_OK; |
| 9105 | } |
| 9106 | |
| 9107 | static nsIFrame* GetFirstSelectableDescendantWithLineIterator( |
| 9108 | nsIFrame* aParentFrame, bool aForceEditableRegion) { |
| 9109 | auto FoundValidFrame = [aForceEditableRegion](const nsIFrame* aFrame) { |
| 9110 | if (!aFrame->IsSelectable(nullptr)) { |
| 9111 | return false; |
| 9112 | } |
| 9113 | if (aForceEditableRegion && !aFrame->GetContent()->IsEditable()) { |
| 9114 | return false; |
| 9115 | } |
| 9116 | return true; |
| 9117 | }; |
| 9118 | |
| 9119 | for (nsIFrame* child : aParentFrame->PrincipalChildList()) { |
| 9120 | // some children may not be selectable, e.g. :before / :after pseudoelements |
| 9121 | // content with user-select: none, or contenteditable="false" |
| 9122 | // we need to skip them |
| 9123 | if (child->CanProvideLineIterator() && FoundValidFrame(child)) { |
| 9124 | return child; |
| 9125 | } |
| 9126 | if (nsIFrame* nested = GetFirstSelectableDescendantWithLineIterator( |
| 9127 | child, aForceEditableRegion)) { |
| 9128 | return nested; |
| 9129 | } |
| 9130 | } |
| 9131 | return nullptr; |
| 9132 | } |
| 9133 | |
| 9134 | nsresult nsIFrame::PeekOffsetForLine(PeekOffsetStruct* aPos) { |
| 9135 | nsIFrame* blockFrame = this; |
| 9136 | nsresult result = NS_ERROR_FAILURE; |
| 9137 | |
| 9138 | // outer loop |
| 9139 | // moving to a next block when no more blocks are available in a subtree |
| 9140 | AutoAssertNoDomMutations guard; |
| 9141 | while (NS_FAILED(result)((bool)(__builtin_expect(!!(NS_FAILED_impl(result)), 0)))) { |
| 9142 | auto [newBlock, lineFrame] = blockFrame->GetContainingBlockForLine( |
| 9143 | aPos->mOptions.contains(PeekOffsetOption::StopAtScroller)); |
| 9144 | if (!newBlock) { |
| 9145 | return NS_ERROR_FAILURE; |
| 9146 | } |
| 9147 | blockFrame = newBlock; |
| 9148 | nsILineIterator* iter = blockFrame->GetLineIterator(); |
| 9149 | int32_t thisLine = iter->FindLineContaining(lineFrame); |
| 9150 | if (NS_WARN_IF(thisLine < 0)NS_warn_if_impl(thisLine < 0, "thisLine < 0", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9150)) { |
| 9151 | return NS_ERROR_FAILURE; |
| 9152 | } |
| 9153 | |
| 9154 | int8_t edgeCase = 0; // no edge case. This should look at thisLine |
| 9155 | |
| 9156 | // this part will find a frame or a block frame. If it's a block frame |
| 9157 | // it will "drill down" to find a viable frame or it will return an |
| 9158 | // error. |
| 9159 | nsIFrame* lastFrame = this; |
| 9160 | |
| 9161 | // inner loop - crawling the frames within a specific block subtree |
| 9162 | while (true) { |
| 9163 | result = |
| 9164 | GetNextPrevLineFromBlockFrame(aPos, blockFrame, thisLine, edgeCase); |
| 9165 | // we came back to same spot! keep going |
| 9166 | if (NS_SUCCEEDED(result)((bool)(__builtin_expect(!!(!NS_FAILED_impl(result)), 1))) && |
| 9167 | (!aPos->mResultFrame || aPos->mResultFrame == lastFrame)) { |
| 9168 | aPos->mResultFrame = nullptr; |
| 9169 | lastFrame = nullptr; |
| 9170 | if (aPos->mDirection == eDirPrevious) { |
| 9171 | thisLine--; |
| 9172 | } else { |
| 9173 | thisLine++; |
| 9174 | } |
| 9175 | continue; |
| 9176 | } |
| 9177 | |
| 9178 | if (NS_FAILED(result)((bool)(__builtin_expect(!!(NS_FAILED_impl(result)), 0)))) { |
| 9179 | break; |
| 9180 | } |
| 9181 | |
| 9182 | lastFrame = aPos->mResultFrame; // set last frame |
| 9183 | /* SPECIAL CHECK FOR NAVIGATION INTO TABLES |
| 9184 | * when we hit a frame which doesn't have line iterator, we need to |
| 9185 | * drill down and find a child with the line iterator to prevent the |
| 9186 | * crawling process to prematurely finish. Note that this is only sound if |
| 9187 | * we're guaranteed to not have multiple children implementing |
| 9188 | * LineIterator. |
| 9189 | * |
| 9190 | * So far known cases are: |
| 9191 | * 1) table wrapper (drill down into table row group) |
| 9192 | * 2) table cell (drill down into its only anon child) |
| 9193 | */ |
| 9194 | const bool shouldDrillIntoChildren = |
| 9195 | aPos->mResultFrame->IsTableWrapperFrame() || |
| 9196 | aPos->mResultFrame->IsTableCellFrame(); |
| 9197 | |
| 9198 | if (shouldDrillIntoChildren) { |
| 9199 | nsIFrame* child = GetFirstSelectableDescendantWithLineIterator( |
| 9200 | aPos->mResultFrame, |
| 9201 | aPos->mOptions.contains(PeekOffsetOption::ForceEditableRegion)); |
| 9202 | if (child) { |
| 9203 | aPos->mResultFrame = child; |
| 9204 | } |
| 9205 | } |
| 9206 | |
| 9207 | if (!aPos->mResultFrame->CanProvideLineIterator()) { |
| 9208 | // no more selectable content at this level |
| 9209 | break; |
| 9210 | } |
| 9211 | |
| 9212 | if (aPos->mResultFrame == blockFrame) { |
| 9213 | // Make sure block element is not the same as the one we had before. |
| 9214 | break; |
| 9215 | } |
| 9216 | |
| 9217 | // we've struck another block element with selectable content! |
| 9218 | if (aPos->mDirection == eDirPrevious) { |
| 9219 | edgeCase = 1; // far edge, search from end backwards |
| 9220 | } else { |
| 9221 | edgeCase = -1; // near edge search from beginning onwards |
| 9222 | } |
| 9223 | thisLine = 0; // this line means nothing now. |
| 9224 | // everything else means something so keep looking "inside" the |
| 9225 | // block |
| 9226 | blockFrame = aPos->mResultFrame; |
| 9227 | } |
| 9228 | } |
| 9229 | return result; |
| 9230 | } |
| 9231 | |
| 9232 | nsresult nsIFrame::PeekOffsetForLineEdge(PeekOffsetStruct* aPos) { |
| 9233 | // Adjusted so that the caret can't get confused when content changes |
| 9234 | nsIFrame* frame = AdjustFrameForSelectionStyles(this); |
| 9235 | Element* editingHost = frame->GetContent()->GetEditingHost(); |
| 9236 | |
| 9237 | auto [blockFrame, lineFrame] = frame->GetContainingBlockForLine( |
| 9238 | aPos->mOptions.contains(PeekOffsetOption::StopAtScroller)); |
| 9239 | if (!blockFrame) { |
| 9240 | return NS_ERROR_FAILURE; |
| 9241 | } |
| 9242 | AutoAssertNoDomMutations guard; |
| 9243 | nsILineIterator* it = blockFrame->GetLineIterator(); |
| 9244 | int32_t thisLine = it->FindLineContaining(lineFrame); |
| 9245 | if (thisLine < 0) { |
| 9246 | return NS_ERROR_FAILURE; |
| 9247 | } |
| 9248 | |
| 9249 | nsIFrame* baseFrame = nullptr; |
| 9250 | bool endOfLine = eSelectEndLine == aPos->mAmount; |
| 9251 | |
| 9252 | if (aPos->mOptions.contains(PeekOffsetOption::Visual) && |
| 9253 | PresContext()->BidiEnabled()) { |
| 9254 | nsIFrame* firstFrame; |
| 9255 | bool isReordered; |
| 9256 | nsIFrame* lastFrame; |
| 9257 | MOZ_TRY(do { auto mozTryTempResult_ = ::mozilla::ToResult(it->CheckLineOrder (thisLine, &isReordered, &firstFrame, &lastFrame) ); if ((__builtin_expect(!!(mozTryTempResult_.isErr()), 0))) { return mozTryTempResult_.propagateErr(); } } while (0) |
| 9258 | it->CheckLineOrder(thisLine, &isReordered, &firstFrame, &lastFrame))do { auto mozTryTempResult_ = ::mozilla::ToResult(it->CheckLineOrder (thisLine, &isReordered, &firstFrame, &lastFrame) ); if ((__builtin_expect(!!(mozTryTempResult_.isErr()), 0))) { return mozTryTempResult_.propagateErr(); } } while (0); |
| 9259 | baseFrame = endOfLine ? lastFrame : firstFrame; |
| 9260 | } else { |
| 9261 | auto line = it->GetLine(thisLine).unwrap(); |
| 9262 | |
| 9263 | nsIFrame* frame = line.mFirstFrameOnLine; |
| 9264 | bool lastFrameWasEditable = false; |
| 9265 | for (int32_t count = line.mNumFramesOnLine; count; |
| 9266 | --count, frame = frame->GetNextSibling()) { |
| 9267 | if (frame->IsGeneratedContentFrame()) { |
| 9268 | continue; |
| 9269 | } |
| 9270 | // When jumping to the end of the line with the "end" key, |
| 9271 | // try to skip over brFrames |
| 9272 | if (endOfLine && line.mNumFramesOnLine > 1 && frame->IsBrFrame() && |
| 9273 | lastFrameWasEditable == frame->GetContent()->IsEditable()) { |
| 9274 | continue; |
| 9275 | } |
| 9276 | lastFrameWasEditable = |
| 9277 | frame->GetContent() && frame->GetContent()->IsEditable(); |
| 9278 | baseFrame = frame; |
| 9279 | if (!endOfLine) { |
| 9280 | break; |
| 9281 | } |
| 9282 | } |
| 9283 | } |
| 9284 | if (!baseFrame) { |
| 9285 | return NS_ERROR_FAILURE; |
| 9286 | } |
| 9287 | // Make sure we are not leaving our inline editing host if exists |
| 9288 | if (editingHost) { |
| 9289 | if (nsIFrame* frame = editingHost->GetPrimaryFrame()) { |
| 9290 | if (frame->IsInlineOutside() && |
| 9291 | !editingHost->Contains(baseFrame->GetContent())) { |
| 9292 | baseFrame = frame; |
| 9293 | if (endOfLine) { |
| 9294 | baseFrame = baseFrame->LastContinuation(); |
| 9295 | } |
| 9296 | } |
| 9297 | } |
| 9298 | } |
| 9299 | FrameTarget targetFrame = DrillDownToSelectionFrame(baseFrame, endOfLine, 0); |
| 9300 | SetPeekResultFromFrame(*aPos, targetFrame.frame, endOfLine ? -1 : 0, |
| 9301 | OffsetIsAtLineEdge::Yes); |
| 9302 | if (endOfLine && targetFrame.frame->HasSignificantTerminalNewline()) { |
| 9303 | // Do not position the caret after the terminating newline if we're |
| 9304 | // trying to move to the end of line (see bug 596506) |
| 9305 | --aPos->mContentOffset; |
| 9306 | } |
| 9307 | if (!aPos->mResultContent) { |
| 9308 | return NS_ERROR_FAILURE; |
| 9309 | } |
| 9310 | return NS_OK; |
| 9311 | } |
| 9312 | |
| 9313 | nsresult nsIFrame::PeekOffset(PeekOffsetStruct* aPos) { |
| 9314 | MOZ_ASSERT(aPos)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aPos)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(aPos))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("aPos", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9314); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aPos" ")"); do { *((volatile int*)__null) = 9314; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9315 | |
| 9316 | if (NS_WARN_IF(HasAnyStateBits(NS_FRAME_IS_DIRTY))NS_warn_if_impl(HasAnyStateBits(NS_FRAME_IS_DIRTY), "HasAnyStateBits(NS_FRAME_IS_DIRTY)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9316)) { |
| 9317 | // FIXME(Bug 1654362): <caption> currently can remain dirty. |
| 9318 | return NS_ERROR_UNEXPECTED; |
| 9319 | } |
| 9320 | |
| 9321 | // Translate content offset to be relative to frame |
| 9322 | int32_t offset = aPos->mStartOffset - GetRangeForFrame(this).start; |
| 9323 | |
| 9324 | switch (aPos->mAmount) { |
| 9325 | case eSelectCharacter: |
| 9326 | case eSelectCluster: |
| 9327 | return PeekOffsetForCharacter(aPos, offset); |
| 9328 | case eSelectWordNoSpace: |
| 9329 | // eSelectWordNoSpace means that we should not be eating any whitespace |
| 9330 | // when moving to the adjacent word. This means that we should set aPos-> |
| 9331 | // mWordMovementType to eEndWord if we're moving forwards, and to |
| 9332 | // eStartWord if we're moving backwards. |
| 9333 | if (aPos->mDirection == eDirPrevious) { |
| 9334 | aPos->mWordMovementType = eStartWord; |
| 9335 | } else { |
| 9336 | aPos->mWordMovementType = eEndWord; |
| 9337 | } |
| 9338 | // Intentionally fall through the eSelectWord case. |
| 9339 | [[fallthrough]]; |
| 9340 | case eSelectWord: |
| 9341 | return PeekOffsetForWord(aPos, offset); |
| 9342 | case eSelectLine: |
| 9343 | return PeekOffsetForLine(aPos); |
| 9344 | case eSelectBeginLine: |
| 9345 | case eSelectEndLine: |
| 9346 | return PeekOffsetForLineEdge(aPos); |
| 9347 | case eSelectParagraph: |
| 9348 | return PeekOffsetForParagraph(aPos); |
| 9349 | default: { |
| 9350 | NS_ASSERTION(false, "Invalid amount")do { if (!(false)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Invalid amount" , "false", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9350); MOZ_PretendNoReturn(); } } while (0); |
| 9351 | return NS_ERROR_FAILURE; |
| 9352 | } |
| 9353 | } |
| 9354 | } |
| 9355 | |
| 9356 | nsIFrame::FrameSearchResult nsIFrame::PeekOffsetNoAmount(bool aForward, |
| 9357 | int32_t* aOffset) { |
| 9358 | NS_ASSERTION(aOffset && *aOffset <= 1, "aOffset out of range")do { if (!(aOffset && *aOffset <= 1)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "aOffset out of range", "aOffset && *aOffset <= 1" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9358); MOZ_PretendNoReturn(); } } while (0); |
| 9359 | // Sure, we can stop right here. |
| 9360 | return FOUND; |
| 9361 | } |
| 9362 | |
| 9363 | nsIFrame::FrameSearchResult nsIFrame::PeekOffsetCharacter( |
| 9364 | bool aForward, int32_t* aOffset, PeekOffsetCharacterOptions aOptions) { |
| 9365 | NS_ASSERTION(aOffset && *aOffset <= 1, "aOffset out of range")do { if (!(aOffset && *aOffset <= 1)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "aOffset out of range", "aOffset && *aOffset <= 1" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9365); MOZ_PretendNoReturn(); } } while (0); |
| 9366 | int32_t startOffset = *aOffset; |
| 9367 | // A negative offset means "end of frame", which in our case means offset 1. |
| 9368 | if (startOffset < 0) startOffset = 1; |
| 9369 | if (aForward == (startOffset == 0)) { |
| 9370 | // We're before the frame and moving forward, or after it and moving |
| 9371 | // backwards: skip to the other side and we're done. |
| 9372 | *aOffset = 1 - startOffset; |
| 9373 | return FOUND; |
| 9374 | } |
| 9375 | return CONTINUE; |
| 9376 | } |
| 9377 | |
| 9378 | nsIFrame::FrameSearchResult nsIFrame::PeekOffsetWord( |
| 9379 | bool aForward, bool aWordSelectEatSpace, bool aIsKeyboardSelect, |
| 9380 | int32_t* aOffset, PeekWordState* aState, bool /*aTrimSpaces*/) { |
| 9381 | NS_ASSERTION(aOffset && *aOffset <= 1, "aOffset out of range")do { if (!(aOffset && *aOffset <= 1)) { NS_DebugBreak (NS_DEBUG_ASSERTION, "aOffset out of range", "aOffset && *aOffset <= 1" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9381); MOZ_PretendNoReturn(); } } while (0); |
| 9382 | int32_t startOffset = *aOffset; |
| 9383 | // This isn't text, so truncate the context |
| 9384 | aState->mContext.Truncate(); |
| 9385 | if (startOffset < 0) startOffset = 1; |
| 9386 | if (aForward == (startOffset == 0)) { |
| 9387 | // We're before the frame and moving forward, or after it and moving |
| 9388 | // backwards. If we're looking for non-whitespace, we found it (without |
| 9389 | // skipping this frame). |
| 9390 | if (!aState->mAtStart) { |
| 9391 | if (aState->mLastCharWasPunctuation) { |
| 9392 | // We're not punctuation, so this is a punctuation boundary. |
| 9393 | if (BreakWordBetweenPunctuation(aState, aForward, false, false, |
| 9394 | aIsKeyboardSelect)) |
| 9395 | return FOUND; |
| 9396 | } else { |
| 9397 | // This is not a punctuation boundary. |
| 9398 | if (aWordSelectEatSpace && aState->mSawBeforeType) return FOUND; |
| 9399 | } |
| 9400 | } |
| 9401 | // Otherwise skip to the other side and note that we encountered |
| 9402 | // non-whitespace. |
| 9403 | *aOffset = 1 - startOffset; |
| 9404 | aState->Update(false, // not punctuation |
| 9405 | false // not whitespace |
| 9406 | ); |
| 9407 | if (!aWordSelectEatSpace) aState->SetSawBeforeType(); |
| 9408 | } |
| 9409 | return CONTINUE; |
| 9410 | } |
| 9411 | |
| 9412 | // static |
| 9413 | bool nsIFrame::BreakWordBetweenPunctuation(const PeekWordState* aState, |
| 9414 | bool aForward, bool aPunctAfter, |
| 9415 | bool aWhitespaceAfter, |
| 9416 | bool aIsKeyboardSelect) { |
| 9417 | NS_ASSERTION(aPunctAfter != aState->mLastCharWasPunctuation,do { if (!(aPunctAfter != aState->mLastCharWasPunctuation) ) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Call this only at punctuation boundaries" , "aPunctAfter != aState->mLastCharWasPunctuation", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9418); MOZ_PretendNoReturn(); } } while (0) |
| 9418 | "Call this only at punctuation boundaries")do { if (!(aPunctAfter != aState->mLastCharWasPunctuation) ) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Call this only at punctuation boundaries" , "aPunctAfter != aState->mLastCharWasPunctuation", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9418); MOZ_PretendNoReturn(); } } while (0); |
| 9419 | if (aState->mLastCharWasWhitespace) { |
| 9420 | // We always stop between whitespace and punctuation |
| 9421 | return true; |
| 9422 | } |
| 9423 | if (!StaticPrefs::layout_word_select_stop_at_punctuation()) { |
| 9424 | // When this pref is false, we never stop at a punctuation boundary unless |
| 9425 | // it's followed by whitespace (in the relevant direction). |
| 9426 | return aWhitespaceAfter; |
| 9427 | } |
| 9428 | if (!aIsKeyboardSelect) { |
| 9429 | // mouse caret movement (e.g. word selection) always stops at every |
| 9430 | // punctuation boundary |
| 9431 | return true; |
| 9432 | } |
| 9433 | bool afterPunct = aForward ? aState->mLastCharWasPunctuation : aPunctAfter; |
| 9434 | if (!afterPunct) { |
| 9435 | // keyboard caret movement only stops after punctuation (in content order) |
| 9436 | return false; |
| 9437 | } |
| 9438 | // Stop only if we've seen some non-punctuation since the last whitespace; |
| 9439 | // don't stop after punctuation that follows whitespace. |
| 9440 | return aState->mSeenNonPunctuationSinceWhitespace; |
| 9441 | } |
| 9442 | |
| 9443 | std::pair<nsIFrame*, nsIFrame*> nsIFrame::GetContainingBlockForLine( |
| 9444 | bool aLockScroll) const { |
| 9445 | const nsIFrame* parentFrame = this; |
| 9446 | const nsIFrame* frame; |
| 9447 | while (parentFrame) { |
| 9448 | frame = parentFrame; |
| 9449 | if (frame->HasAnyStateBits(NS_FRAME_OUT_OF_FLOW)) { |
| 9450 | // if we are searching for a frame that is not in flow we will not find |
| 9451 | // it. we must instead look for its placeholder |
| 9452 | if (frame->HasAnyStateBits(NS_FRAME_IS_OVERFLOW_CONTAINER)) { |
| 9453 | // abspos continuations don't have placeholders, get the fif |
| 9454 | frame = frame->FirstInFlow(); |
| 9455 | } |
| 9456 | frame = frame->GetPlaceholderFrame(); |
| 9457 | if (!frame) { |
| 9458 | return std::pair(nullptr, nullptr); |
| 9459 | } |
| 9460 | } |
| 9461 | parentFrame = frame->GetParent(); |
| 9462 | if (parentFrame) { |
| 9463 | if (aLockScroll && parentFrame->IsScrollFrame()) { |
| 9464 | return std::pair(nullptr, nullptr); |
| 9465 | } |
| 9466 | if (parentFrame->CanProvideLineIterator()) { |
| 9467 | return std::pair(const_cast<nsIFrame*>(parentFrame), |
| 9468 | const_cast<nsIFrame*>(frame)); |
| 9469 | } |
| 9470 | } |
| 9471 | } |
| 9472 | return std::pair(nullptr, nullptr); |
| 9473 | } |
| 9474 | |
| 9475 | Result<bool, nsresult> nsIFrame::IsVisuallyAtLineEdge( |
| 9476 | nsILineIterator* aLineIterator, int32_t aLine, nsDirection aDirection) { |
| 9477 | auto line = aLineIterator->GetLine(aLine).unwrap(); |
| 9478 | |
| 9479 | const bool lineIsRTL = aLineIterator->IsLineIteratorFlowRTL(); |
| 9480 | |
| 9481 | nsIFrame *firstFrame = nullptr, *lastFrame = nullptr; |
| 9482 | bool isReordered = false; |
| 9483 | MOZ_TRY(aLineIterator->CheckLineOrder(aLine, &isReordered, &firstFrame,do { auto mozTryTempResult_ = ::mozilla::ToResult(aLineIterator ->CheckLineOrder(aLine, &isReordered, &firstFrame, &lastFrame)); if ((__builtin_expect(!!(mozTryTempResult_ .isErr()), 0))) { return mozTryTempResult_.propagateErr(); } } while (0) |
| 9484 | &lastFrame))do { auto mozTryTempResult_ = ::mozilla::ToResult(aLineIterator ->CheckLineOrder(aLine, &isReordered, &firstFrame, &lastFrame)); if ((__builtin_expect(!!(mozTryTempResult_ .isErr()), 0))) { return mozTryTempResult_.propagateErr(); } } while (0); |
| 9485 | if (!firstFrame || !lastFrame) { |
| 9486 | return true; // XXX: Why true? We check whether `this` is at the edge... |
| 9487 | } |
| 9488 | |
| 9489 | nsIFrame* leftmostFrame = lineIsRTL ? lastFrame : firstFrame; |
| 9490 | nsIFrame* rightmostFrame = lineIsRTL ? firstFrame : lastFrame; |
| 9491 | auto FrameIsRTL = [](nsIFrame* aFrame) { |
| 9492 | return nsBidiPresUtils::FrameDirection(aFrame) == |
| 9493 | mozilla::intl::BidiDirection::RTL; |
| 9494 | }; |
| 9495 | if (!lineIsRTL == (aDirection == eDirPrevious)) { |
| 9496 | nsIFrame* maybeLeftmostFrame = leftmostFrame; |
| 9497 | for ([[maybe_unused]] int32_t i : IntegerRange(line.mNumFramesOnLine)) { |
| 9498 | if (maybeLeftmostFrame == this) { |
| 9499 | return true; |
| 9500 | } |
| 9501 | // If left edge of the line starts with placeholder frames, we can ignore |
| 9502 | // them and should keep checking the following frames. |
| 9503 | if (!maybeLeftmostFrame->IsPlaceholderFrame()) { |
| 9504 | if ((FrameIsRTL(maybeLeftmostFrame) == lineIsRTL) == |
| 9505 | (aDirection == eDirPrevious)) { |
| 9506 | nsIFrame::GetFirstLeaf(&maybeLeftmostFrame); |
| 9507 | } else { |
| 9508 | nsIFrame::GetLastLeaf(&maybeLeftmostFrame); |
| 9509 | } |
| 9510 | return maybeLeftmostFrame == this; |
| 9511 | } |
| 9512 | maybeLeftmostFrame = nsBidiPresUtils::GetFrameToRightOf( |
| 9513 | maybeLeftmostFrame, line.mFirstFrameOnLine, line.mNumFramesOnLine); |
| 9514 | if (!maybeLeftmostFrame) { |
| 9515 | return false; |
| 9516 | } |
| 9517 | } |
| 9518 | return false; |
| 9519 | } |
| 9520 | |
| 9521 | nsIFrame* maybeRightmostFrame = rightmostFrame; |
| 9522 | for ([[maybe_unused]] int32_t i : IntegerRange(line.mNumFramesOnLine)) { |
| 9523 | if (maybeRightmostFrame == this) { |
| 9524 | return true; |
| 9525 | } |
| 9526 | // If the line ends with placehlder frames, we can ignore them and should |
| 9527 | // keep checking the preceding frames. |
| 9528 | if (!maybeRightmostFrame->IsPlaceholderFrame()) { |
| 9529 | if ((FrameIsRTL(maybeRightmostFrame) == lineIsRTL) == |
| 9530 | (aDirection == eDirPrevious)) { |
| 9531 | nsIFrame::GetFirstLeaf(&maybeRightmostFrame); |
| 9532 | } else { |
| 9533 | nsIFrame::GetLastLeaf(&maybeRightmostFrame); |
| 9534 | } |
| 9535 | return maybeRightmostFrame == this; |
| 9536 | } |
| 9537 | maybeRightmostFrame = nsBidiPresUtils::GetFrameToLeftOf( |
| 9538 | maybeRightmostFrame, line.mFirstFrameOnLine, line.mNumFramesOnLine); |
| 9539 | if (!maybeRightmostFrame) { |
| 9540 | return false; |
| 9541 | } |
| 9542 | } |
| 9543 | return false; |
| 9544 | } |
| 9545 | |
| 9546 | Result<bool, nsresult> nsIFrame::IsLogicallyAtLineEdge( |
| 9547 | nsILineIterator* aLineIterator, int32_t aLine, nsDirection aDirection) { |
| 9548 | auto line = aLineIterator->GetLine(aLine).unwrap(); |
| 9549 | if (!line.mNumFramesOnLine) { |
| 9550 | return false; |
| 9551 | } |
| 9552 | MOZ_ASSERT(line.mFirstFrameOnLine)do { static_assert( mozilla::detail::AssertionConditionType< decltype(line.mFirstFrameOnLine)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(line.mFirstFrameOnLine))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("line.mFirstFrameOnLine" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9552); AnnotateMozCrashReason("MOZ_ASSERT" "(" "line.mFirstFrameOnLine" ")"); do { *((volatile int*)__null) = 9552; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9553 | |
| 9554 | if (aDirection == eDirPrevious) { |
| 9555 | nsIFrame* maybeFirstFrame = line.mFirstFrameOnLine; |
| 9556 | for ([[maybe_unused]] int32_t i : IntegerRange(line.mNumFramesOnLine)) { |
| 9557 | if (maybeFirstFrame == this) { |
| 9558 | return true; |
| 9559 | } |
| 9560 | // If the line starts with placeholder frames, we can ignore them and |
| 9561 | // should keep checking the following frames. |
| 9562 | if (!maybeFirstFrame->IsPlaceholderFrame()) { |
| 9563 | nsIFrame::GetFirstLeaf(&maybeFirstFrame); |
| 9564 | return maybeFirstFrame == this; |
| 9565 | } |
| 9566 | maybeFirstFrame = maybeFirstFrame->GetNextSibling(); |
| 9567 | if (!maybeFirstFrame) { |
| 9568 | return false; |
| 9569 | } |
| 9570 | } |
| 9571 | return false; |
| 9572 | } |
| 9573 | |
| 9574 | // eDirNext |
| 9575 | nsIFrame* maybeLastFrame = line.GetLastFrameOnLine(); |
| 9576 | for ([[maybe_unused]] int32_t i : IntegerRange(line.mNumFramesOnLine)) { |
| 9577 | if (maybeLastFrame == this) { |
| 9578 | return true; |
| 9579 | } |
| 9580 | // If the line ends with placehlder frames, we can ignore them and should |
| 9581 | // keep checking the preceding frames. |
| 9582 | if (!maybeLastFrame->IsPlaceholderFrame()) { |
| 9583 | nsIFrame::GetLastLeaf(&maybeLastFrame); |
| 9584 | return maybeLastFrame == this; |
| 9585 | } |
| 9586 | maybeLastFrame = maybeLastFrame->GetPrevSibling(); |
| 9587 | } |
| 9588 | return false; |
| 9589 | } |
| 9590 | |
| 9591 | nsIFrame::SelectablePeekReport nsIFrame::GetFrameFromDirection( |
| 9592 | nsDirection aDirection, const PeekOffsetOptions& aOptions) { |
| 9593 | SelectablePeekReport result; |
| 9594 | |
| 9595 | nsPresContext* presContext = PresContext(); |
| 9596 | const bool needsVisualTraversal = |
| 9597 | aOptions.contains(PeekOffsetOption::Visual) && presContext->BidiEnabled(); |
| 9598 | const bool followOofs = |
| 9599 | !aOptions.contains(PeekOffsetOption::StopAtPlaceholder); |
| 9600 | nsCOMPtr<nsIFrameEnumerator> frameTraversal; |
| 9601 | MOZ_TRY(NS_NewFrameTraversal(do { auto mozTryTempResult_ = ::mozilla::ToResult(NS_NewFrameTraversal ( getter_AddRefs(frameTraversal), presContext, this, eLeaf, needsVisualTraversal , aOptions.contains(PeekOffsetOption::StopAtScroller), followOofs , false )); if ((__builtin_expect(!!(mozTryTempResult_.isErr( )), 0))) { return mozTryTempResult_.propagateErr(); } } while (0) |
| 9602 | getter_AddRefs(frameTraversal), presContext, this, eLeaf,do { auto mozTryTempResult_ = ::mozilla::ToResult(NS_NewFrameTraversal ( getter_AddRefs(frameTraversal), presContext, this, eLeaf, needsVisualTraversal , aOptions.contains(PeekOffsetOption::StopAtScroller), followOofs , false )); if ((__builtin_expect(!!(mozTryTempResult_.isErr( )), 0))) { return mozTryTempResult_.propagateErr(); } } while (0) |
| 9603 | needsVisualTraversal, aOptions.contains(PeekOffsetOption::StopAtScroller),do { auto mozTryTempResult_ = ::mozilla::ToResult(NS_NewFrameTraversal ( getter_AddRefs(frameTraversal), presContext, this, eLeaf, needsVisualTraversal , aOptions.contains(PeekOffsetOption::StopAtScroller), followOofs , false )); if ((__builtin_expect(!!(mozTryTempResult_.isErr( )), 0))) { return mozTryTempResult_.propagateErr(); } } while (0) |
| 9604 | followOofs,do { auto mozTryTempResult_ = ::mozilla::ToResult(NS_NewFrameTraversal ( getter_AddRefs(frameTraversal), presContext, this, eLeaf, needsVisualTraversal , aOptions.contains(PeekOffsetOption::StopAtScroller), followOofs , false )); if ((__builtin_expect(!!(mozTryTempResult_.isErr( )), 0))) { return mozTryTempResult_.propagateErr(); } } while (0) |
| 9605 | false // aSkipPopupChecksdo { auto mozTryTempResult_ = ::mozilla::ToResult(NS_NewFrameTraversal ( getter_AddRefs(frameTraversal), presContext, this, eLeaf, needsVisualTraversal , aOptions.contains(PeekOffsetOption::StopAtScroller), followOofs , false )); if ((__builtin_expect(!!(mozTryTempResult_.isErr( )), 0))) { return mozTryTempResult_.propagateErr(); } } while (0) |
| 9606 | ))do { auto mozTryTempResult_ = ::mozilla::ToResult(NS_NewFrameTraversal ( getter_AddRefs(frameTraversal), presContext, this, eLeaf, needsVisualTraversal , aOptions.contains(PeekOffsetOption::StopAtScroller), followOofs , false )); if ((__builtin_expect(!!(mozTryTempResult_.isErr( )), 0))) { return mozTryTempResult_.propagateErr(); } } while (0); |
| 9607 | |
| 9608 | // Find the prev/next selectable frame |
| 9609 | bool selectable = false; |
| 9610 | nsIFrame* traversedFrame = this; |
| 9611 | AutoAssertNoDomMutations guard; |
| 9612 | const nsIContent* const nativeAnonymousSubtreeContent = |
| 9613 | GetClosestNativeAnonymousSubtreeRoot(); |
| 9614 | while (!selectable) { |
| 9615 | auto [blockFrame, lineFrame] = traversedFrame->GetContainingBlockForLine( |
| 9616 | aOptions.contains(PeekOffsetOption::StopAtScroller)); |
| 9617 | if (!blockFrame) { |
| 9618 | return result; |
| 9619 | } |
| 9620 | |
| 9621 | nsILineIterator* it = blockFrame->GetLineIterator(); |
| 9622 | int32_t thisLine = it->FindLineContaining(lineFrame); |
| 9623 | if (thisLine < 0) { |
| 9624 | return result; |
| 9625 | } |
| 9626 | |
| 9627 | bool atLineEdge; |
| 9628 | MOZ_TRY_VAR(do { auto mozTryVarTempResult_ = (needsVisualTraversal ? traversedFrame ->IsVisuallyAtLineEdge(it, thisLine, aDirection) : traversedFrame ->IsLogicallyAtLineEdge(it, thisLine, aDirection)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (atLineEdge) = mozTryVarTempResult_.unwrap (); } while (0) |
| 9629 | atLineEdge,do { auto mozTryVarTempResult_ = (needsVisualTraversal ? traversedFrame ->IsVisuallyAtLineEdge(it, thisLine, aDirection) : traversedFrame ->IsLogicallyAtLineEdge(it, thisLine, aDirection)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (atLineEdge) = mozTryVarTempResult_.unwrap (); } while (0) |
| 9630 | needsVisualTraversaldo { auto mozTryVarTempResult_ = (needsVisualTraversal ? traversedFrame ->IsVisuallyAtLineEdge(it, thisLine, aDirection) : traversedFrame ->IsLogicallyAtLineEdge(it, thisLine, aDirection)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (atLineEdge) = mozTryVarTempResult_.unwrap (); } while (0) |
| 9631 | ? traversedFrame->IsVisuallyAtLineEdge(it, thisLine, aDirection)do { auto mozTryVarTempResult_ = (needsVisualTraversal ? traversedFrame ->IsVisuallyAtLineEdge(it, thisLine, aDirection) : traversedFrame ->IsLogicallyAtLineEdge(it, thisLine, aDirection)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (atLineEdge) = mozTryVarTempResult_.unwrap (); } while (0) |
| 9632 | : traversedFrame->IsLogicallyAtLineEdge(it, thisLine, aDirection))do { auto mozTryVarTempResult_ = (needsVisualTraversal ? traversedFrame ->IsVisuallyAtLineEdge(it, thisLine, aDirection) : traversedFrame ->IsLogicallyAtLineEdge(it, thisLine, aDirection)); if ((__builtin_expect (!!(mozTryVarTempResult_.isErr()), 0))) { return mozTryVarTempResult_ .propagateErr(); } (atLineEdge) = mozTryVarTempResult_.unwrap (); } while (0); |
| 9633 | if (atLineEdge) { |
| 9634 | result.mJumpedLine = true; |
| 9635 | if (!aOptions.contains(PeekOffsetOption::JumpLines)) { |
| 9636 | return result; // we are done. cannot jump lines |
| 9637 | } |
| 9638 | int32_t lineToCheckWrap = |
| 9639 | aDirection == eDirPrevious ? thisLine - 1 : thisLine; |
| 9640 | if (lineToCheckWrap < 0 || |
| 9641 | !it->GetLine(lineToCheckWrap).unwrap().mIsWrapped) { |
| 9642 | result.mJumpedHardBreak = true; |
| 9643 | } |
| 9644 | } |
| 9645 | |
| 9646 | traversedFrame = frameTraversal->Traverse(aDirection == eDirNext); |
| 9647 | if (!traversedFrame) { |
| 9648 | return result; |
| 9649 | } |
| 9650 | |
| 9651 | if (aOptions.contains(PeekOffsetOption::StopAtPlaceholder) && |
| 9652 | traversedFrame->IsPlaceholderFrame()) { |
| 9653 | // XXX If the placeholder frame does not have meaningful content, the user |
| 9654 | // may want to select as a word around the out-of-flow cotent. However, |
| 9655 | // non-text frame resets context in nsIFrame::PeekOffsetWord(). Therefore, |
| 9656 | // next text frame considers the new word starts from its edge. So, it's |
| 9657 | // not enough to implement such behavior with adding a check here whether |
| 9658 | // the real frame may change the word with its contents if it were not |
| 9659 | // out-of-flow. |
| 9660 | result.mFoundPlaceholder = true; |
| 9661 | return result; |
| 9662 | } |
| 9663 | |
| 9664 | auto IsSelectable = |
| 9665 | [aOptions, nativeAnonymousSubtreeContent](const nsIFrame* aFrame) { |
| 9666 | if (!aFrame->IsSelectable(nullptr)) { |
| 9667 | return false; |
| 9668 | } |
| 9669 | // If the new frame is in a native anonymous subtree, we should treat |
| 9670 | // it as not selectable unless the frame and found frame are in same |
| 9671 | // subtree. |
| 9672 | if (aFrame->GetClosestNativeAnonymousSubtreeRoot() != |
| 9673 | nativeAnonymousSubtreeContent) { |
| 9674 | return false; |
| 9675 | } |
| 9676 | return !aOptions.contains(PeekOffsetOption::ForceEditableRegion) || |
| 9677 | aFrame->GetContent()->IsEditable(); |
| 9678 | }; |
| 9679 | |
| 9680 | // Skip br frames, but only if we can select something before hitting the |
| 9681 | // end of the line or a non-selectable region. |
| 9682 | if (atLineEdge && aDirection == eDirPrevious && |
| 9683 | traversedFrame->IsBrFrame()) { |
| 9684 | for (nsIFrame* current = traversedFrame->GetPrevSibling(); current; |
| 9685 | current = current->GetPrevSibling()) { |
| 9686 | if (!current->IsBlockOutside() && IsSelectable(current)) { |
| 9687 | if (!current->IsBrFrame()) { |
| 9688 | result.mIgnoredBrFrame = true; |
| 9689 | } |
| 9690 | break; |
| 9691 | } |
| 9692 | } |
| 9693 | if (result.mIgnoredBrFrame) { |
| 9694 | continue; |
| 9695 | } |
| 9696 | } |
| 9697 | |
| 9698 | selectable = IsSelectable(traversedFrame); |
| 9699 | if (!selectable) { |
| 9700 | if (traversedFrame->IsSelectable(nullptr)) { |
| 9701 | result.mHasSelectableFrame = true; |
| 9702 | } |
| 9703 | result.mMovedOverNonSelectableText = true; |
| 9704 | } |
| 9705 | } // while (!selectable) |
| 9706 | |
| 9707 | result.mOffset = (aDirection == eDirNext) ? 0 : -1; |
| 9708 | |
| 9709 | if (aOptions.contains(PeekOffsetOption::Visual) && |
| 9710 | nsBidiPresUtils::IsReversedDirectionFrame(traversedFrame)) { |
| 9711 | // The new frame is reverse-direction, go to the other end |
| 9712 | result.mOffset = -1 - result.mOffset; |
| 9713 | } |
| 9714 | result.mFrame = traversedFrame; |
| 9715 | return result; |
| 9716 | } |
| 9717 | |
| 9718 | nsIFrame::SelectablePeekReport nsIFrame::GetFrameFromDirection( |
| 9719 | const PeekOffsetStruct& aPos) { |
| 9720 | return GetFrameFromDirection(aPos.mDirection, aPos.mOptions); |
| 9721 | } |
| 9722 | |
| 9723 | nsView* nsIFrame::GetClosestView(nsPoint* aOffset) const { |
| 9724 | nsPoint offset(0, 0); |
| 9725 | for (const nsIFrame* f = this; f; f = f->GetParent()) { |
| 9726 | if (f->HasView()) { |
| 9727 | if (aOffset) *aOffset = offset; |
| 9728 | return f->GetView(); |
| 9729 | } |
| 9730 | offset += f->GetPosition(); |
| 9731 | } |
| 9732 | |
| 9733 | MOZ_ASSERT_UNREACHABLE("No view on any parent? How did that happen?")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: " "No view on any parent? How did that happen?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9733); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "No view on any parent? How did that happen?" ")"); do { *((volatile int*)__null) = 9733; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 9734 | return nullptr; |
| 9735 | } |
| 9736 | |
| 9737 | /* virtual */ |
| 9738 | void nsIFrame::ChildIsDirty(nsIFrame* aChild) { |
| 9739 | MOZ_ASSERT_UNREACHABLE(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: " "should never be called on a frame that doesn't " "inherit from nsContainerFrame" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9741); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "should never be called on a frame that doesn't " "inherit from nsContainerFrame" ")"); do { *((volatile int*) __null) = 9741; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 9740 | "should never be called on a frame that doesn't "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: " "should never be called on a frame that doesn't " "inherit from nsContainerFrame" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9741); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "should never be called on a frame that doesn't " "inherit from nsContainerFrame" ")"); do { *((volatile int*) __null) = 9741; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false) |
| 9741 | "inherit from nsContainerFrame")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: " "should never be called on a frame that doesn't " "inherit from nsContainerFrame" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9741); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "should never be called on a frame that doesn't " "inherit from nsContainerFrame" ")"); do { *((volatile int*) __null) = 9741; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 9742 | } |
| 9743 | |
| 9744 | #ifdef ACCESSIBILITY1 |
| 9745 | a11y::AccType nsIFrame::AccessibleType() { |
| 9746 | if (IsTableCaption() && !GetRect().IsEmpty()) { |
| 9747 | return a11y::eHTMLCaptionType; |
| 9748 | } |
| 9749 | return a11y::eNoType; |
| 9750 | } |
| 9751 | #endif |
| 9752 | |
| 9753 | bool nsIFrame::ClearOverflowRects() { |
| 9754 | if (mOverflow.mType == OverflowStorageType::None) { |
| 9755 | return false; |
| 9756 | } |
| 9757 | if (mOverflow.mType == OverflowStorageType::Large) { |
| 9758 | RemoveProperty(OverflowAreasProperty()); |
| 9759 | } |
| 9760 | mOverflow.mType = OverflowStorageType::None; |
| 9761 | return true; |
| 9762 | } |
| 9763 | |
| 9764 | bool nsIFrame::SetOverflowAreas(const OverflowAreas& aOverflowAreas) { |
| 9765 | if (mOverflow.mType == OverflowStorageType::Large) { |
| 9766 | OverflowAreas* overflow = GetOverflowAreasProperty(); |
| 9767 | bool changed = *overflow != aOverflowAreas; |
| 9768 | *overflow = aOverflowAreas; |
| 9769 | |
| 9770 | // Don't bother with converting to the deltas form if we already |
| 9771 | // have a property. |
| 9772 | return changed; |
| 9773 | } |
| 9774 | |
| 9775 | const nsRect& vis = aOverflowAreas.InkOverflow(); |
| 9776 | uint32_t l = -vis.x, // left edge: positive delta is leftwards |
| 9777 | t = -vis.y, // top: positive is upwards |
| 9778 | r = vis.XMost() - mRect.width, // right: positive is rightwards |
| 9779 | b = vis.YMost() - mRect.height; // bottom: positive is downwards |
| 9780 | if (aOverflowAreas.ScrollableOverflow().IsEqualEdges( |
| 9781 | nsRect(nsPoint(0, 0), GetSize())) && |
| 9782 | l <= InkOverflowDeltas::kMax && t <= InkOverflowDeltas::kMax && |
| 9783 | r <= InkOverflowDeltas::kMax && b <= InkOverflowDeltas::kMax && |
| 9784 | // we have to check these against zero because we *never* want to |
| 9785 | // set a frame as having no overflow in this function. This is |
| 9786 | // because FinishAndStoreOverflow calls this function prior to |
| 9787 | // SetRect based on whether the overflow areas match aNewSize. |
| 9788 | // In the case where the overflow areas exactly match mRect but |
| 9789 | // do not match aNewSize, we need to store overflow in a property |
| 9790 | // so that our eventual SetRect/SetSize will know that it has to |
| 9791 | // reset our overflow areas. |
| 9792 | (l | t | r | b) != 0) { |
| 9793 | InkOverflowDeltas oldDeltas = mOverflow.mInkOverflowDeltas; |
| 9794 | // It's a "small" overflow area so we store the deltas for each edge |
| 9795 | // directly in the frame, rather than allocating a separate rect. |
| 9796 | // If they're all zero, that's fine; we're setting things to |
| 9797 | // no-overflow. |
| 9798 | mOverflow.mInkOverflowDeltas.mLeft = l; |
| 9799 | mOverflow.mInkOverflowDeltas.mTop = t; |
| 9800 | mOverflow.mInkOverflowDeltas.mRight = r; |
| 9801 | mOverflow.mInkOverflowDeltas.mBottom = b; |
| 9802 | // There was no scrollable overflow before, and there isn't now. |
| 9803 | return oldDeltas != mOverflow.mInkOverflowDeltas; |
| 9804 | } else { |
| 9805 | bool changed = |
| 9806 | !aOverflowAreas.ScrollableOverflow().IsEqualEdges( |
| 9807 | nsRect(nsPoint(0, 0), GetSize())) || |
| 9808 | !aOverflowAreas.InkOverflow().IsEqualEdges(InkOverflowFromDeltas()); |
| 9809 | |
| 9810 | // it's a large overflow area that we need to store as a property |
| 9811 | mOverflow.mType = OverflowStorageType::Large; |
| 9812 | AddProperty(OverflowAreasProperty(), new OverflowAreas(aOverflowAreas)); |
| 9813 | return changed; |
| 9814 | } |
| 9815 | } |
| 9816 | |
| 9817 | enum class ApplyTransform : bool { No, Yes }; |
| 9818 | |
| 9819 | /** |
| 9820 | * Compute the outline inner rect (so without outline-width and outline-offset) |
| 9821 | * of aFrame, maybe iterating over its descendants, in aFrame's coordinate space |
| 9822 | * or its post-transform coordinate space (depending on aApplyTransform). |
| 9823 | */ |
| 9824 | static nsRect ComputeOutlineInnerRect( |
| 9825 | nsIFrame* aFrame, ApplyTransform aApplyTransform, bool& aOutValid, |
| 9826 | const nsSize* aSizeOverride = nullptr, |
| 9827 | const OverflowAreas* aOverflowOverride = nullptr) { |
| 9828 | const nsRect bounds(nsPoint(0, 0), |
| 9829 | aSizeOverride ? *aSizeOverride : aFrame->GetSize()); |
| 9830 | |
| 9831 | // The SVG container frames besides SVGTextFrame do not maintain |
| 9832 | // an accurate mRect. It will make the outline be larger than |
| 9833 | // we expect, we need to make them narrow to their children's outline. |
| 9834 | // aOutValid is set to false if the returned nsRect is not valid |
| 9835 | // and should not be included in the outline rectangle. |
| 9836 | aOutValid = !aFrame->HasAnyStateBits(NS_FRAME_SVG_LAYOUT) || |
| 9837 | !aFrame->IsSVGContainerFrame() || aFrame->IsSVGTextFrame(); |
| 9838 | |
| 9839 | nsRect u; |
| 9840 | |
| 9841 | if (!aFrame->FrameMaintainsOverflow()) { |
| 9842 | return u; |
| 9843 | } |
| 9844 | |
| 9845 | // Start from our border-box, transformed. See comment below about |
| 9846 | // transform of children. |
| 9847 | bool doTransform = |
| 9848 | aApplyTransform == ApplyTransform::Yes && aFrame->IsTransformed(); |
| 9849 | TransformReferenceBox boundsRefBox(nullptr, bounds); |
| 9850 | if (doTransform) { |
| 9851 | u = nsDisplayTransform::TransformRect(bounds, aFrame, boundsRefBox); |
| 9852 | } else { |
| 9853 | u = bounds; |
| 9854 | } |
| 9855 | |
| 9856 | if (aOutValid && !StaticPrefs::layout_outline_include_overflow()) { |
| 9857 | return u; |
| 9858 | } |
| 9859 | |
| 9860 | // Only iterate through the children if the overflow areas suggest |
| 9861 | // that we might need to, and if the frame doesn't clip its overflow |
| 9862 | // anyway. |
| 9863 | if (aOverflowOverride) { |
| 9864 | if (!doTransform && bounds.IsEqualEdges(aOverflowOverride->InkOverflow()) && |
| 9865 | bounds.IsEqualEdges(aOverflowOverride->ScrollableOverflow())) { |
| 9866 | return u; |
| 9867 | } |
| 9868 | } else { |
| 9869 | if (!doTransform && bounds.IsEqualEdges(aFrame->InkOverflowRect()) && |
| 9870 | bounds.IsEqualEdges(aFrame->ScrollableOverflowRect())) { |
| 9871 | return u; |
| 9872 | } |
| 9873 | } |
| 9874 | const nsStyleDisplay* disp = aFrame->StyleDisplay(); |
| 9875 | LayoutFrameType fType = aFrame->Type(); |
| 9876 | if (fType == LayoutFrameType::Scroll || |
| 9877 | fType == LayoutFrameType::ListControl || |
| 9878 | fType == LayoutFrameType::SVGOuterSVG) { |
| 9879 | return u; |
| 9880 | } |
| 9881 | |
| 9882 | auto overflowClipAxes = aFrame->ShouldApplyOverflowClipping(disp); |
| 9883 | auto overflowClipMargin = aFrame->OverflowClipMargin(overflowClipAxes); |
| 9884 | if (overflowClipAxes == nsIFrame::PhysicalAxes::Both && |
| 9885 | overflowClipMargin == nsSize()) { |
| 9886 | return u; |
| 9887 | } |
| 9888 | |
| 9889 | const nsStyleEffects* effects = aFrame->StyleEffects(); |
| 9890 | Maybe<nsRect> clipPropClipRect = |
| 9891 | aFrame->GetClipPropClipRect(disp, effects, bounds.Size()); |
| 9892 | |
| 9893 | // Iterate over all children except pop-up, absolutely-positioned, |
| 9894 | // float, and overflow ones. |
| 9895 | const FrameChildListIDs skip = { |
| 9896 | FrameChildListID::Popup, FrameChildListID::Absolute, |
| 9897 | FrameChildListID::Fixed, FrameChildListID::Float, |
| 9898 | FrameChildListID::Overflow}; |
| 9899 | for (const auto& [list, listID] : aFrame->ChildLists()) { |
| 9900 | if (skip.contains(listID)) { |
| 9901 | continue; |
| 9902 | } |
| 9903 | |
| 9904 | for (nsIFrame* child : list) { |
| 9905 | if (child->IsPlaceholderFrame()) { |
| 9906 | continue; |
| 9907 | } |
| 9908 | |
| 9909 | // Note that passing ApplyTransform::Yes when |
| 9910 | // child->Combines3DTransformWithAncestors() returns true is incorrect if |
| 9911 | // our aApplyTransform is No... but the opposite would be as well. |
| 9912 | // This is because elements within a preserve-3d scene are always |
| 9913 | // transformed up to the top of the scene. This means we don't have a |
| 9914 | // mechanism for getting a transform up to an intermediate point within |
| 9915 | // the scene. We choose to over-transform rather than under-transform |
| 9916 | // because this is consistent with other overflow areas. |
| 9917 | bool validRect = true; |
| 9918 | nsRect childRect = |
| 9919 | ComputeOutlineInnerRect(child, ApplyTransform::Yes, validRect) + |
| 9920 | child->GetPosition(); |
| 9921 | |
| 9922 | if (!validRect) { |
| 9923 | continue; |
| 9924 | } |
| 9925 | |
| 9926 | if (clipPropClipRect) { |
| 9927 | // Intersect with the clip before transforming. |
| 9928 | childRect.IntersectRect(childRect, *clipPropClipRect); |
| 9929 | } |
| 9930 | |
| 9931 | // Note that we transform each child separately according to |
| 9932 | // aFrame's transform, and then union, which gives a different |
| 9933 | // (smaller) result from unioning and then transforming the |
| 9934 | // union. This doesn't match the way we handle overflow areas |
| 9935 | // with 2-D transforms, though it does match the way we handle |
| 9936 | // overflow areas in preserve-3d 3-D scenes. |
| 9937 | if (doTransform && !child->Combines3DTransformWithAncestors()) { |
| 9938 | childRect = |
| 9939 | nsDisplayTransform::TransformRect(childRect, aFrame, boundsRefBox); |
| 9940 | } |
| 9941 | |
| 9942 | // If a SVGContainer has a non-SVGContainer child, we assign |
| 9943 | // its child's outline to this SVGContainer directly. |
| 9944 | if (!aOutValid && validRect) { |
| 9945 | u = childRect; |
| 9946 | aOutValid = true; |
| 9947 | } else { |
| 9948 | u = u.UnionEdges(childRect); |
| 9949 | } |
| 9950 | } |
| 9951 | } |
| 9952 | |
| 9953 | if (overflowClipAxes != nsIFrame::PhysicalAxes::None) { |
| 9954 | OverflowAreas::ApplyOverflowClippingOnRect(u, bounds, overflowClipAxes, |
| 9955 | overflowClipMargin); |
| 9956 | } |
| 9957 | return u; |
| 9958 | } |
| 9959 | |
| 9960 | static void ComputeAndIncludeOutlineArea(nsIFrame* aFrame, |
| 9961 | OverflowAreas& aOverflowAreas, |
| 9962 | const nsSize& aNewSize) { |
| 9963 | const nsStyleOutline* outline = aFrame->StyleOutline(); |
| 9964 | if (!outline->ShouldPaintOutline()) { |
| 9965 | return; |
| 9966 | } |
| 9967 | |
| 9968 | // When the outline property is set on a :-moz-block-inside-inline-wrapper |
| 9969 | // pseudo-element, it inherited that outline from the inline that was broken |
| 9970 | // because it contained a block. In that case, we don't want a really wide |
| 9971 | // outline if the block inside the inline is narrow, so union the actual |
| 9972 | // contents of the anonymous blocks. |
| 9973 | nsIFrame* frameForArea = aFrame; |
| 9974 | do { |
| 9975 | PseudoStyleType pseudoType = frameForArea->Style()->GetPseudoType(); |
| 9976 | if (pseudoType != PseudoStyleType::mozBlockInsideInlineWrapper) break; |
| 9977 | // If we're done, we really want it and all its later siblings. |
| 9978 | frameForArea = frameForArea->PrincipalChildList().FirstChild(); |
| 9979 | NS_ASSERTION(frameForArea, "anonymous block with no children?")do { if (!(frameForArea)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "anonymous block with no children?", "frameForArea", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 9979); MOZ_PretendNoReturn(); } } while (0); |
| 9980 | } while (frameForArea); |
| 9981 | |
| 9982 | // Find the union of the border boxes of all descendants, or in |
| 9983 | // the block-in-inline case, all descendants we care about. |
| 9984 | // |
| 9985 | // Note that the interesting perspective-related cases are taken |
| 9986 | // care of by the code that handles those issues for overflow |
| 9987 | // calling FinishAndStoreOverflow again, which in turn calls this |
| 9988 | // function again. We still need to deal with preserve-3d a bit. |
| 9989 | nsRect innerRect; |
| 9990 | bool validRect = false; |
| 9991 | if (frameForArea == aFrame) { |
| 9992 | innerRect = ComputeOutlineInnerRect(aFrame, ApplyTransform::No, validRect, |
| 9993 | &aNewSize, &aOverflowAreas); |
| 9994 | } else { |
| 9995 | for (; frameForArea; frameForArea = frameForArea->GetNextSibling()) { |
| 9996 | nsRect r = |
| 9997 | ComputeOutlineInnerRect(frameForArea, ApplyTransform::Yes, validRect); |
| 9998 | |
| 9999 | // Adjust for offsets transforms up to aFrame's pre-transform |
| 10000 | // (i.e., normal) coordinate space; see comments in |
| 10001 | // UnionBorderBoxes for some of the subtlety here. |
| 10002 | for (nsIFrame *f = frameForArea, *parent = f->GetParent(); |
| 10003 | /* see middle of loop */; f = parent, parent = f->GetParent()) { |
| 10004 | r += f->GetPosition(); |
| 10005 | if (parent == aFrame) { |
| 10006 | break; |
| 10007 | } |
| 10008 | if (parent->IsTransformed() && !f->Combines3DTransformWithAncestors()) { |
| 10009 | TransformReferenceBox refBox(parent); |
| 10010 | r = nsDisplayTransform::TransformRect(r, parent, refBox); |
| 10011 | } |
| 10012 | } |
| 10013 | |
| 10014 | innerRect.UnionRect(innerRect, r); |
| 10015 | } |
| 10016 | } |
| 10017 | |
| 10018 | // Keep this code in sync with nsDisplayOutline::GetInnerRect. |
| 10019 | if (innerRect == aFrame->GetRectRelativeToSelf()) { |
| 10020 | aFrame->RemoveProperty(nsIFrame::OutlineInnerRectProperty()); |
| 10021 | } else { |
| 10022 | SetOrUpdateRectValuedProperty(aFrame, nsIFrame::OutlineInnerRectProperty(), |
| 10023 | innerRect); |
| 10024 | } |
| 10025 | |
| 10026 | nsRect outerRect(innerRect); |
| 10027 | outerRect.Inflate(outline->EffectiveOffsetFor(outerRect)); |
| 10028 | |
| 10029 | if (outline->mOutlineStyle.IsAuto()) { |
| 10030 | nsPresContext* pc = aFrame->PresContext(); |
| 10031 | |
| 10032 | pc->Theme()->GetWidgetOverflow(pc->DeviceContext(), aFrame, |
| 10033 | StyleAppearance::FocusOutline, &outerRect); |
| 10034 | } else { |
| 10035 | const nscoord width = outline->GetOutlineWidth(); |
| 10036 | outerRect.Inflate(width); |
| 10037 | } |
| 10038 | |
| 10039 | nsRect& vo = aOverflowAreas.InkOverflow(); |
| 10040 | vo = vo.UnionEdges(innerRect.Union(outerRect)); |
| 10041 | } |
| 10042 | |
| 10043 | bool nsIFrame::FinishAndStoreOverflow(OverflowAreas& aOverflowAreas, |
| 10044 | nsSize aNewSize, nsSize* aOldSize, |
| 10045 | const nsStyleDisplay* aStyleDisplay) { |
| 10046 | MOZ_ASSERT(FrameMaintainsOverflow(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(FrameMaintainsOverflow())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(FrameMaintainsOverflow()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("FrameMaintainsOverflow()" " (" "Don't call - overflow rects not maintained on these SVG frames" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10047); AnnotateMozCrashReason("MOZ_ASSERT" "(" "FrameMaintainsOverflow()" ") (" "Don't call - overflow rects not maintained on these SVG frames" ")"); do { *((volatile int*)__null) = 10047; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false) |
| 10047 | "Don't call - overflow rects not maintained on these SVG frames")do { static_assert( mozilla::detail::AssertionConditionType< decltype(FrameMaintainsOverflow())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(FrameMaintainsOverflow()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("FrameMaintainsOverflow()" " (" "Don't call - overflow rects not maintained on these SVG frames" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10047); AnnotateMozCrashReason("MOZ_ASSERT" "(" "FrameMaintainsOverflow()" ") (" "Don't call - overflow rects not maintained on these SVG frames" ")"); do { *((volatile int*)__null) = 10047; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 10048 | |
| 10049 | const nsStyleDisplay* disp = StyleDisplayWithOptionalParam(aStyleDisplay); |
| 10050 | bool hasTransform = IsTransformed(); |
| 10051 | |
| 10052 | nsRect bounds(nsPoint(0, 0), aNewSize); |
| 10053 | // Store the passed in overflow area if we are a preserve-3d frame or we have |
| 10054 | // a transform, and it's not just the frame bounds. |
| 10055 | if (hasTransform || Combines3DTransformWithAncestors()) { |
| 10056 | if (!aOverflowAreas.InkOverflow().IsEqualEdges(bounds) || |
| 10057 | !aOverflowAreas.ScrollableOverflow().IsEqualEdges(bounds)) { |
| 10058 | OverflowAreas* initial = GetProperty(nsIFrame::InitialOverflowProperty()); |
| 10059 | if (!initial) { |
| 10060 | AddProperty(nsIFrame::InitialOverflowProperty(), |
| 10061 | new OverflowAreas(aOverflowAreas)); |
| 10062 | } else if (initial != &aOverflowAreas) { |
| 10063 | *initial = aOverflowAreas; |
| 10064 | } |
| 10065 | } else { |
| 10066 | RemoveProperty(nsIFrame::InitialOverflowProperty()); |
| 10067 | } |
| 10068 | #ifdef DEBUG1 |
| 10069 | SetProperty(nsIFrame::DebugInitialOverflowPropertyApplied(), true); |
| 10070 | #endif |
| 10071 | } else { |
| 10072 | #ifdef DEBUG1 |
| 10073 | RemoveProperty(nsIFrame::DebugInitialOverflowPropertyApplied()); |
| 10074 | #endif |
| 10075 | } |
| 10076 | |
| 10077 | nsSize oldSize = mRect.Size(); |
| 10078 | bool sizeChanged = ((aOldSize ? *aOldSize : oldSize) != aNewSize); |
| 10079 | |
| 10080 | // Our frame size may not have been computed and set yet, but code under |
| 10081 | // functions such as ComputeEffectsRect (which we're about to call) use the |
| 10082 | // values that are stored in our frame rect to compute their results. We |
| 10083 | // need the results from those functions to be based on the frame size that |
| 10084 | // we *will* have, so we temporarily set our frame size here before calling |
| 10085 | // those functions. |
| 10086 | // |
| 10087 | // XXX Someone should document here why we revert the frame size before we |
| 10088 | // return rather than just leaving it set. |
| 10089 | // |
| 10090 | // We pass false here to avoid invalidating display items for this temporary |
| 10091 | // change. We sometimes reflow frames multiple times, with the final size |
| 10092 | // being the same as the initial. The single call to SetSize after reflow is |
| 10093 | // done will take care of invalidating display items if the size has actually |
| 10094 | // changed. |
| 10095 | SetSize(aNewSize, false); |
| 10096 | |
| 10097 | const auto overflowClipAxes = ShouldApplyOverflowClipping(disp); |
| 10098 | |
| 10099 | if (ChildrenHavePerspective(disp) && sizeChanged) { |
| 10100 | RecomputePerspectiveChildrenOverflow(this); |
| 10101 | |
| 10102 | if (overflowClipAxes != PhysicalAxes::Both) { |
| 10103 | aOverflowAreas.SetAllTo(bounds); |
| 10104 | DebugOnly<bool> ok = ComputeCustomOverflow(aOverflowAreas); |
| 10105 | |
| 10106 | // ComputeCustomOverflow() should not return false, when |
| 10107 | // FrameMaintainsOverflow() returns true. |
| 10108 | MOZ_ASSERT(ok, "FrameMaintainsOverflow() != ComputeCustomOverflow()")do { static_assert( mozilla::detail::AssertionConditionType< decltype(ok)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(ok))), 0))) { do { } while (false ); MOZ_ReportAssertionFailure("ok" " (" "FrameMaintainsOverflow() != ComputeCustomOverflow()" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10108); AnnotateMozCrashReason("MOZ_ASSERT" "(" "ok" ") (" "FrameMaintainsOverflow() != ComputeCustomOverflow()" ")"); do { *((volatile int*)__null) = 10108; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 10109 | |
| 10110 | UnionChildOverflow(aOverflowAreas); |
| 10111 | } |
| 10112 | } |
| 10113 | |
| 10114 | // This is now called FinishAndStoreOverflow() instead of |
| 10115 | // StoreOverflow() because frame-generic ways of adding overflow |
| 10116 | // can happen here, e.g. CSS2 outline and native theme. |
| 10117 | // If the overflow area width or height is nscoord_MAX, then a |
| 10118 | // saturating union may have encounted an overflow, so the overflow may not |
| 10119 | // contain the frame border-box. Don't warn in that case. |
| 10120 | // Don't warn for SVG either, since SVG doesn't need the overflow area |
| 10121 | // to contain the frame bounds. |
| 10122 | for (const auto otype : AllOverflowTypes()) { |
| 10123 | DebugOnly<nsRect*> r = &aOverflowAreas.Overflow(otype); |
| 10124 | NS_ASSERTION(aNewSize.width == 0 || aNewSize.height == 0 ||do { if (!(aNewSize.width == 0 || aNewSize.height == 0 || r-> width == nscoord((1 << 30) - 1) || r->height == nscoord ((1 << 30) - 1) || HasAnyStateBits(NS_FRAME_SVG_LAYOUT) || r->Contains(nsRect(nsPoint(0, 0), aNewSize)))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Computed overflow area must contain frame bounds" , "aNewSize.width == 0 || aNewSize.height == 0 || r->width == nscoord_MAX || r->height == nscoord_MAX || HasAnyStateBits(NS_FRAME_SVG_LAYOUT) || r->Contains(nsRect(nsPoint(0, 0), aNewSize))" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10128); MOZ_PretendNoReturn(); } } while (0) |
| 10125 | r->width == nscoord_MAX || r->height == nscoord_MAX ||do { if (!(aNewSize.width == 0 || aNewSize.height == 0 || r-> width == nscoord((1 << 30) - 1) || r->height == nscoord ((1 << 30) - 1) || HasAnyStateBits(NS_FRAME_SVG_LAYOUT) || r->Contains(nsRect(nsPoint(0, 0), aNewSize)))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Computed overflow area must contain frame bounds" , "aNewSize.width == 0 || aNewSize.height == 0 || r->width == nscoord_MAX || r->height == nscoord_MAX || HasAnyStateBits(NS_FRAME_SVG_LAYOUT) || r->Contains(nsRect(nsPoint(0, 0), aNewSize))" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10128); MOZ_PretendNoReturn(); } } while (0) |
| 10126 | HasAnyStateBits(NS_FRAME_SVG_LAYOUT) ||do { if (!(aNewSize.width == 0 || aNewSize.height == 0 || r-> width == nscoord((1 << 30) - 1) || r->height == nscoord ((1 << 30) - 1) || HasAnyStateBits(NS_FRAME_SVG_LAYOUT) || r->Contains(nsRect(nsPoint(0, 0), aNewSize)))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Computed overflow area must contain frame bounds" , "aNewSize.width == 0 || aNewSize.height == 0 || r->width == nscoord_MAX || r->height == nscoord_MAX || HasAnyStateBits(NS_FRAME_SVG_LAYOUT) || r->Contains(nsRect(nsPoint(0, 0), aNewSize))" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10128); MOZ_PretendNoReturn(); } } while (0) |
| 10127 | r->Contains(nsRect(nsPoint(0, 0), aNewSize)),do { if (!(aNewSize.width == 0 || aNewSize.height == 0 || r-> width == nscoord((1 << 30) - 1) || r->height == nscoord ((1 << 30) - 1) || HasAnyStateBits(NS_FRAME_SVG_LAYOUT) || r->Contains(nsRect(nsPoint(0, 0), aNewSize)))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Computed overflow area must contain frame bounds" , "aNewSize.width == 0 || aNewSize.height == 0 || r->width == nscoord_MAX || r->height == nscoord_MAX || HasAnyStateBits(NS_FRAME_SVG_LAYOUT) || r->Contains(nsRect(nsPoint(0, 0), aNewSize))" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10128); MOZ_PretendNoReturn(); } } while (0) |
| 10128 | "Computed overflow area must contain frame bounds")do { if (!(aNewSize.width == 0 || aNewSize.height == 0 || r-> width == nscoord((1 << 30) - 1) || r->height == nscoord ((1 << 30) - 1) || HasAnyStateBits(NS_FRAME_SVG_LAYOUT) || r->Contains(nsRect(nsPoint(0, 0), aNewSize)))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Computed overflow area must contain frame bounds" , "aNewSize.width == 0 || aNewSize.height == 0 || r->width == nscoord_MAX || r->height == nscoord_MAX || HasAnyStateBits(NS_FRAME_SVG_LAYOUT) || r->Contains(nsRect(nsPoint(0, 0), aNewSize))" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10128); MOZ_PretendNoReturn(); } } while (0); |
| 10129 | } |
| 10130 | |
| 10131 | // Overflow area must always include the frame's top-left and bottom-right, |
| 10132 | // even if the frame rect is empty (so we can scroll to those positions). |
| 10133 | const bool shouldIncludeBounds = [&] { |
| 10134 | if (aNewSize.width == 0 && IsInlineFrame()) { |
| 10135 | // Pending a real fix for bug 426879, don't do this for inline frames with |
| 10136 | // zero width. |
| 10137 | return false; |
| 10138 | } |
| 10139 | if (HasAnyStateBits(NS_FRAME_SVG_LAYOUT)) { |
| 10140 | // Do not do this for SVG either, since it will usually massively increase |
| 10141 | // the area unnecessarily (except for SVG that applies clipping, since |
| 10142 | // that's the pre-existing behavior, and breaks pre-rendering otherwise). |
| 10143 | // FIXME(bug 1770704): This check most likely wants to be removed or check |
| 10144 | // for specific frame types at least. |
| 10145 | return overflowClipAxes != PhysicalAxes::None; |
| 10146 | } |
| 10147 | return true; |
| 10148 | }(); |
| 10149 | |
| 10150 | if (shouldIncludeBounds) { |
| 10151 | for (const auto otype : AllOverflowTypes()) { |
| 10152 | nsRect& o = aOverflowAreas.Overflow(otype); |
| 10153 | o = o.UnionEdges(bounds); |
| 10154 | } |
| 10155 | } |
| 10156 | |
| 10157 | // If we clip our children, clear accumulated overflow area in the affected |
| 10158 | // dimension(s). The children are actually clipped to the padding-box, but |
| 10159 | // since the overflow area should include the entire border-box, just set it |
| 10160 | // to the border-box size here. |
| 10161 | if (overflowClipAxes != PhysicalAxes::None) { |
| 10162 | aOverflowAreas.ApplyClipping(bounds, overflowClipAxes, |
| 10163 | OverflowClipMargin(overflowClipAxes)); |
| 10164 | } |
| 10165 | |
| 10166 | ComputeAndIncludeOutlineArea(this, aOverflowAreas, aNewSize); |
| 10167 | |
| 10168 | // Nothing in here should affect scrollable overflow. |
| 10169 | aOverflowAreas.InkOverflow() = |
| 10170 | ComputeEffectsRect(this, aOverflowAreas.InkOverflow(), aNewSize); |
| 10171 | |
| 10172 | // Absolute position clipping |
| 10173 | const nsStyleEffects* effects = StyleEffects(); |
| 10174 | Maybe<nsRect> clipPropClipRect = GetClipPropClipRect(disp, effects, aNewSize); |
| 10175 | if (clipPropClipRect) { |
| 10176 | for (const auto otype : AllOverflowTypes()) { |
| 10177 | nsRect& o = aOverflowAreas.Overflow(otype); |
| 10178 | o.IntersectRect(o, *clipPropClipRect); |
| 10179 | } |
| 10180 | } |
| 10181 | |
| 10182 | /* If we're transformed, transform the overflow rect by the current |
| 10183 | * transformation. */ |
| 10184 | if (hasTransform) { |
| 10185 | SetProperty(nsIFrame::PreTransformOverflowAreasProperty(), |
| 10186 | new OverflowAreas(aOverflowAreas)); |
| 10187 | |
| 10188 | if (Combines3DTransformWithAncestors()) { |
| 10189 | /* If we're a preserve-3d leaf frame, then our pre-transform overflow |
| 10190 | * should be correct. Our post-transform overflow is empty though, because |
| 10191 | * we only contribute to the overflow area of the preserve-3d root frame. |
| 10192 | * If we're an intermediate frame then the pre-transform overflow should |
| 10193 | * contain all our non-preserve-3d children, which is what we want. Again |
| 10194 | * we have no post-transform overflow. |
| 10195 | */ |
| 10196 | aOverflowAreas.SetAllTo(nsRect()); |
| 10197 | } else { |
| 10198 | TransformReferenceBox refBox(this); |
| 10199 | for (const auto otype : AllOverflowTypes()) { |
| 10200 | nsRect& o = aOverflowAreas.Overflow(otype); |
| 10201 | o = nsDisplayTransform::TransformRect(o, this, refBox); |
| 10202 | } |
| 10203 | |
| 10204 | /* If we're the root of the 3d context, then we want to include the |
| 10205 | * overflow areas of all the participants. This won't have happened yet as |
| 10206 | * the code above set their overflow area to empty. Manually collect these |
| 10207 | * overflow areas now. |
| 10208 | */ |
| 10209 | if (Extend3DContext(disp, effects)) { |
| 10210 | ComputePreserve3DChildrenOverflow(aOverflowAreas); |
| 10211 | } |
| 10212 | } |
| 10213 | } else { |
| 10214 | RemoveProperty(nsIFrame::PreTransformOverflowAreasProperty()); |
| 10215 | } |
| 10216 | |
| 10217 | /* Revert the size change in case some caller is depending on this. */ |
| 10218 | SetSize(oldSize, false); |
| 10219 | |
| 10220 | bool anyOverflowChanged; |
| 10221 | if (aOverflowAreas != OverflowAreas(bounds, bounds)) { |
| 10222 | anyOverflowChanged = SetOverflowAreas(aOverflowAreas); |
| 10223 | } else { |
| 10224 | anyOverflowChanged = ClearOverflowRects(); |
| 10225 | } |
| 10226 | |
| 10227 | if (anyOverflowChanged) { |
| 10228 | SVGObserverUtils::InvalidateDirectRenderingObservers(this); |
| 10229 | if (nsBlockFrame* block = do_QueryFrame(this)) { |
| 10230 | // NOTE(emilio): we need to use BeforeReflow::Yes, because we want to |
| 10231 | // invalidate in cases where we _used_ to have an overflow marker and no |
| 10232 | // longer do. |
| 10233 | if (TextOverflow::CanHaveOverflowMarkers( |
| 10234 | block, TextOverflow::BeforeReflow::Yes)) { |
| 10235 | DiscardDisplayItems(this, [](nsDisplayItem* aItem) { |
| 10236 | return aItem->GetType() == DisplayItemType::TYPE_TEXT_OVERFLOW; |
| 10237 | }); |
| 10238 | SchedulePaint(PAINT_DEFAULT); |
| 10239 | } |
| 10240 | } |
| 10241 | } |
| 10242 | return anyOverflowChanged; |
| 10243 | } |
| 10244 | |
| 10245 | void nsIFrame::RecomputePerspectiveChildrenOverflow( |
| 10246 | const nsIFrame* aStartFrame) { |
| 10247 | for (const auto& childList : ChildLists()) { |
| 10248 | for (nsIFrame* child : childList.mList) { |
| 10249 | if (!child->FrameMaintainsOverflow()) { |
| 10250 | continue; // frame does not maintain overflow rects |
| 10251 | } |
| 10252 | if (child->HasPerspective()) { |
| 10253 | OverflowAreas* overflow = |
| 10254 | child->GetProperty(nsIFrame::InitialOverflowProperty()); |
| 10255 | nsRect bounds(nsPoint(0, 0), child->GetSize()); |
| 10256 | if (overflow) { |
| 10257 | OverflowAreas overflowCopy = *overflow; |
| 10258 | child->FinishAndStoreOverflow(overflowCopy, bounds.Size()); |
| 10259 | } else { |
| 10260 | OverflowAreas boundsOverflow; |
| 10261 | boundsOverflow.SetAllTo(bounds); |
| 10262 | child->FinishAndStoreOverflow(boundsOverflow, bounds.Size()); |
| 10263 | } |
| 10264 | } else if (child->GetContent() == aStartFrame->GetContent() || |
| 10265 | child->GetClosestFlattenedTreeAncestorPrimaryFrame() == |
| 10266 | aStartFrame) { |
| 10267 | // If a frame is using perspective, then the size used to compute |
| 10268 | // perspective-origin is the size of the frame belonging to its parent |
| 10269 | // style. We must find any descendant frames using our size |
| 10270 | // (by recursing into frames that have the same containing block) |
| 10271 | // to update their overflow rects too. |
| 10272 | child->RecomputePerspectiveChildrenOverflow(aStartFrame); |
| 10273 | } |
| 10274 | } |
| 10275 | } |
| 10276 | } |
| 10277 | |
| 10278 | void nsIFrame::ComputePreserve3DChildrenOverflow( |
| 10279 | OverflowAreas& aOverflowAreas) { |
| 10280 | // Find all descendants that participate in the 3d context, and include their |
| 10281 | // overflow. These descendants have an empty overflow, so won't have been |
| 10282 | // included in the normal overflow calculation. Any children that don't |
| 10283 | // participate have normal overflow, so will have been included already. |
| 10284 | |
| 10285 | nsRect childVisual; |
| 10286 | nsRect childScrollable; |
| 10287 | for (const auto& childList : ChildLists()) { |
| 10288 | for (nsIFrame* child : childList.mList) { |
| 10289 | // If this child participates in the 3d context, then take the |
| 10290 | // pre-transform region (which contains all descendants that aren't |
| 10291 | // participating in the 3d context) and transform it into the 3d context |
| 10292 | // root coordinate space. |
| 10293 | if (child->Combines3DTransformWithAncestors()) { |
| 10294 | OverflowAreas childOverflow = child->GetOverflowAreasRelativeToSelf(); |
| 10295 | TransformReferenceBox refBox(child); |
| 10296 | for (const auto otype : AllOverflowTypes()) { |
| 10297 | nsRect& o = childOverflow.Overflow(otype); |
| 10298 | o = nsDisplayTransform::TransformRect(o, child, refBox); |
| 10299 | } |
| 10300 | |
| 10301 | aOverflowAreas.UnionWith(childOverflow); |
| 10302 | |
| 10303 | // If this child also extends the 3d context, then recurse into it |
| 10304 | // looking for more participants. |
| 10305 | if (child->Extend3DContext()) { |
| 10306 | child->ComputePreserve3DChildrenOverflow(aOverflowAreas); |
| 10307 | } |
| 10308 | } |
| 10309 | } |
| 10310 | } |
| 10311 | } |
| 10312 | |
| 10313 | bool nsIFrame::ZIndexApplies() const { |
| 10314 | return StyleDisplay()->IsPositionedStyle() || IsFlexOrGridItem() || |
| 10315 | IsMenuPopupFrame(); |
| 10316 | } |
| 10317 | |
| 10318 | Maybe<int32_t> nsIFrame::ZIndex() const { |
| 10319 | if (!ZIndexApplies()) { |
| 10320 | return Nothing(); |
| 10321 | } |
| 10322 | const auto& zIndex = StylePosition()->mZIndex; |
| 10323 | if (zIndex.IsAuto()) { |
| 10324 | return Nothing(); |
| 10325 | } |
| 10326 | return Some(zIndex.AsInteger()); |
| 10327 | } |
| 10328 | |
| 10329 | bool nsIFrame::IsScrollAnchor(ScrollAnchorContainer** aOutContainer) { |
| 10330 | if (!mInScrollAnchorChain) { |
| 10331 | return false; |
| 10332 | } |
| 10333 | |
| 10334 | nsIFrame* f = this; |
| 10335 | |
| 10336 | // FIXME(emilio, bug 1629280): We should find a non-null anchor if we have the |
| 10337 | // flag set, but bug 1629280 makes it so that we cannot really assert it / |
| 10338 | // make this just a `while (true)`, and uncomment the below assertion. |
| 10339 | while (auto* container = ScrollAnchorContainer::FindFor(f)) { |
| 10340 | // MOZ_ASSERT(f->IsInScrollAnchorChain()); |
| 10341 | if (nsIFrame* anchor = container->AnchorNode()) { |
| 10342 | if (anchor != this) { |
| 10343 | return false; |
| 10344 | } |
| 10345 | if (aOutContainer) { |
| 10346 | *aOutContainer = container; |
| 10347 | } |
| 10348 | return true; |
| 10349 | } |
| 10350 | |
| 10351 | f = container->Frame(); |
| 10352 | } |
| 10353 | |
| 10354 | return false; |
| 10355 | } |
| 10356 | |
| 10357 | bool nsIFrame::IsInScrollAnchorChain() const { return mInScrollAnchorChain; } |
| 10358 | |
| 10359 | void nsIFrame::SetInScrollAnchorChain(bool aInChain) { |
| 10360 | mInScrollAnchorChain = aInChain; |
| 10361 | } |
| 10362 | |
| 10363 | uint32_t nsIFrame::GetDepthInFrameTree() const { |
| 10364 | uint32_t result = 0; |
| 10365 | for (nsContainerFrame* ancestor = GetParent(); ancestor; |
| 10366 | ancestor = ancestor->GetParent()) { |
| 10367 | result++; |
| 10368 | } |
| 10369 | return result; |
| 10370 | } |
| 10371 | |
| 10372 | /** |
| 10373 | * This function takes a frame that is part of a block-in-inline split, |
| 10374 | * and _if_ that frame is an anonymous block created by an ib split it |
| 10375 | * returns the block's preceding inline. This is needed because the |
| 10376 | * split inline's style is the parent of the anonymous block's style. |
| 10377 | * |
| 10378 | * If aFrame is not an anonymous block, null is returned. |
| 10379 | */ |
| 10380 | static nsIFrame* GetIBSplitSiblingForAnonymousBlock(const nsIFrame* aFrame) { |
| 10381 | MOZ_ASSERT(aFrame, "Must have a non-null 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 non-null frame!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10381); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ") (" "Must have a non-null frame!" ")"); do { *((volatile int*)__null ) = 10381; __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 10382 | NS_ASSERTION(aFrame->HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT),do { if (!(aFrame->HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "GetIBSplitSibling should only be called on ib-split frames" , "aFrame->HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10383); MOZ_PretendNoReturn(); } } while (0) |
| 10383 | "GetIBSplitSibling should only be called on ib-split frames")do { if (!(aFrame->HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT ))) { NS_DebugBreak(NS_DEBUG_ASSERTION, "GetIBSplitSibling should only be called on ib-split frames" , "aFrame->HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10383); MOZ_PretendNoReturn(); } } while (0); |
| 10384 | |
| 10385 | if (aFrame->Style()->GetPseudoType() != |
| 10386 | PseudoStyleType::mozBlockInsideInlineWrapper) { |
| 10387 | // it's not an anonymous block |
| 10388 | return nullptr; |
| 10389 | } |
| 10390 | |
| 10391 | // Find the first continuation of the frame. (Ugh. This ends up |
| 10392 | // being O(N^2) when it is called O(N) times.) |
| 10393 | aFrame = aFrame->FirstContinuation(); |
| 10394 | |
| 10395 | /* |
| 10396 | * Now look up the nsGkAtoms::IBSplitPrevSibling |
| 10397 | * property. |
| 10398 | */ |
| 10399 | nsIFrame* ibSplitSibling = |
| 10400 | aFrame->GetProperty(nsIFrame::IBSplitPrevSibling()); |
| 10401 | NS_ASSERTION(ibSplitSibling, "Broken frame tree?")do { if (!(ibSplitSibling)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "Broken frame tree?", "ibSplitSibling", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10401); MOZ_PretendNoReturn(); } } while (0); |
| 10402 | return ibSplitSibling; |
| 10403 | } |
| 10404 | |
| 10405 | /** |
| 10406 | * Get the parent, corrected for the mangled frame tree resulting from |
| 10407 | * having a block within an inline. The result only differs from the |
| 10408 | * result of |GetParent| when |GetParent| returns an anonymous block |
| 10409 | * that was created for an element that was 'display: inline' because |
| 10410 | * that element contained a block. |
| 10411 | * |
| 10412 | * Also skip anonymous scrolled-content parents; inherit directly from the |
| 10413 | * outer scroll frame. |
| 10414 | * |
| 10415 | * Also skip NAC parents if the child frame is NAC. |
| 10416 | */ |
| 10417 | static nsIFrame* GetCorrectedParent(const nsIFrame* aFrame) { |
| 10418 | nsIFrame* parent = aFrame->GetParent(); |
| 10419 | if (!parent) { |
| 10420 | return nullptr; |
| 10421 | } |
| 10422 | |
| 10423 | // For a table caption we want the _inner_ table frame (unless it's anonymous) |
| 10424 | // as the style parent. |
| 10425 | if (aFrame->IsTableCaption()) { |
| 10426 | nsIFrame* innerTable = parent->PrincipalChildList().FirstChild(); |
| 10427 | if (!innerTable->Style()->IsAnonBox()) { |
| 10428 | return innerTable; |
| 10429 | } |
| 10430 | } |
| 10431 | |
| 10432 | // Table wrappers are always anon boxes; if we're in here for an outer |
| 10433 | // table, that actually means its the _inner_ table that wants to |
| 10434 | // know its parent. So get the pseudo of the inner in that case. |
| 10435 | auto pseudo = aFrame->Style()->GetPseudoType(); |
| 10436 | if (pseudo == PseudoStyleType::tableWrapper) { |
| 10437 | pseudo = |
| 10438 | aFrame->PrincipalChildList().FirstChild()->Style()->GetPseudoType(); |
| 10439 | } |
| 10440 | |
| 10441 | // Prevent a NAC pseudo-element from inheriting from its NAC parent, and |
| 10442 | // inherit from the NAC generator element instead. |
| 10443 | if (pseudo != PseudoStyleType::NotPseudo) { |
| 10444 | MOZ_ASSERT(aFrame->GetContent())do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame->GetContent())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aFrame->GetContent()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame->GetContent()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10444); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame->GetContent()" ")"); do { *((volatile int*)__null) = 10444; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 10445 | Element* element = Element::FromNode(aFrame->GetContent()); |
| 10446 | // Make sure to avoid doing the fixup for non-element-backed pseudos like |
| 10447 | // ::first-line and such. |
| 10448 | if (element && !element->IsRootOfNativeAnonymousSubtree() && |
| 10449 | element->GetPseudoElementType() == aFrame->Style()->GetPseudoType()) { |
| 10450 | while (parent->GetContent() && |
| 10451 | !parent->GetContent()->IsRootOfNativeAnonymousSubtree()) { |
| 10452 | parent = parent->GetInFlowParent(); |
| 10453 | } |
| 10454 | parent = parent->GetInFlowParent(); |
| 10455 | } |
| 10456 | } |
| 10457 | |
| 10458 | return nsIFrame::CorrectStyleParentFrame(parent, pseudo); |
| 10459 | } |
| 10460 | |
| 10461 | /* static */ |
| 10462 | nsIFrame* nsIFrame::CorrectStyleParentFrame(nsIFrame* aProspectiveParent, |
| 10463 | PseudoStyleType aChildPseudo) { |
| 10464 | MOZ_ASSERT(aProspectiveParent, "Must have a prospective parent")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aProspectiveParent)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aProspectiveParent))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aProspectiveParent" " (" "Must have a prospective parent" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10464); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aProspectiveParent" ") (" "Must have a prospective parent" ")"); do { *((volatile int*)__null) = 10464; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 10465 | |
| 10466 | if (aChildPseudo != PseudoStyleType::NotPseudo) { |
| 10467 | // Non-inheriting anon boxes have no style parent frame at all. |
| 10468 | if (PseudoStyle::IsNonInheritingAnonBox(aChildPseudo)) { |
| 10469 | return nullptr; |
| 10470 | } |
| 10471 | |
| 10472 | // Other anon boxes are parented to their actual parent already, except |
| 10473 | // for non-elements. Those should not be treated as an anon box. |
| 10474 | if (PseudoStyle::IsAnonBox(aChildPseudo) && |
| 10475 | !nsCSSAnonBoxes::IsNonElement(aChildPseudo)) { |
| 10476 | NS_ASSERTION(aChildPseudo != PseudoStyleType::mozBlockInsideInlineWrapper,do { if (!(aChildPseudo != PseudoStyleType::mozBlockInsideInlineWrapper )) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Should have dealt with kids that have " "NS_FRAME_PART_OF_IBSPLIT elsewhere", "aChildPseudo != PseudoStyleType::mozBlockInsideInlineWrapper" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10478); MOZ_PretendNoReturn(); } } while (0) |
| 10477 | "Should have dealt with kids that have "do { if (!(aChildPseudo != PseudoStyleType::mozBlockInsideInlineWrapper )) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Should have dealt with kids that have " "NS_FRAME_PART_OF_IBSPLIT elsewhere", "aChildPseudo != PseudoStyleType::mozBlockInsideInlineWrapper" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10478); MOZ_PretendNoReturn(); } } while (0) |
| 10478 | "NS_FRAME_PART_OF_IBSPLIT elsewhere")do { if (!(aChildPseudo != PseudoStyleType::mozBlockInsideInlineWrapper )) { NS_DebugBreak(NS_DEBUG_ASSERTION, "Should have dealt with kids that have " "NS_FRAME_PART_OF_IBSPLIT elsewhere", "aChildPseudo != PseudoStyleType::mozBlockInsideInlineWrapper" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10478); MOZ_PretendNoReturn(); } } while (0); |
| 10479 | return aProspectiveParent; |
| 10480 | } |
| 10481 | } |
| 10482 | |
| 10483 | // Otherwise, walk up out of all anon boxes. For placeholder frames, walk out |
| 10484 | // of all pseudo-elements as well. Otherwise ReparentComputedStyle could |
| 10485 | // cause style data to be out of sync with the frame tree. |
| 10486 | nsIFrame* parent = aProspectiveParent; |
| 10487 | do { |
| 10488 | if (parent->HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT)) { |
| 10489 | nsIFrame* sibling = GetIBSplitSiblingForAnonymousBlock(parent); |
| 10490 | |
| 10491 | if (sibling) { |
| 10492 | // |parent| was a block in an {ib} split; use the inline as |
| 10493 | // |the style parent. |
| 10494 | parent = sibling; |
| 10495 | } |
| 10496 | } |
| 10497 | |
| 10498 | if (!parent->Style()->IsPseudoOrAnonBox()) { |
| 10499 | return parent; |
| 10500 | } |
| 10501 | |
| 10502 | if (!parent->Style()->IsAnonBox() && aChildPseudo != PseudoStyleType::MAX) { |
| 10503 | // nsPlaceholderFrame passes in PseudoStyleType::MAX for |
| 10504 | // aChildPseudo (even though that's not a valid pseudo-type) just to |
| 10505 | // trigger this behavior of walking up to the nearest non-pseudo |
| 10506 | // ancestor. |
| 10507 | return parent; |
| 10508 | } |
| 10509 | |
| 10510 | parent = parent->GetInFlowParent(); |
| 10511 | } while (parent); |
| 10512 | |
| 10513 | if (aProspectiveParent->Style()->GetPseudoType() == |
| 10514 | PseudoStyleType::viewportScroll) { |
| 10515 | // aProspectiveParent is the scrollframe for a viewport |
| 10516 | // and the kids are the anonymous scrollbars |
| 10517 | return aProspectiveParent; |
| 10518 | } |
| 10519 | |
| 10520 | // We can get here if the root element is absolutely positioned. |
| 10521 | // We can't test for this very accurately, but it can only happen |
| 10522 | // when the prospective parent is a canvas frame. |
| 10523 | NS_ASSERTION(aProspectiveParent->IsCanvasFrame(),do { if (!(aProspectiveParent->IsCanvasFrame())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Should have found a parent before this" , "aProspectiveParent->IsCanvasFrame()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10524); MOZ_PretendNoReturn(); } } while (0) |
| 10524 | "Should have found a parent before this")do { if (!(aProspectiveParent->IsCanvasFrame())) { NS_DebugBreak (NS_DEBUG_ASSERTION, "Should have found a parent before this" , "aProspectiveParent->IsCanvasFrame()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10524); MOZ_PretendNoReturn(); } } while (0); |
| 10525 | return nullptr; |
| 10526 | } |
| 10527 | |
| 10528 | ComputedStyle* nsIFrame::DoGetParentComputedStyle( |
| 10529 | nsIFrame** aProviderFrame) const { |
| 10530 | *aProviderFrame = nullptr; |
| 10531 | |
| 10532 | // Handle display:contents and the root frame, when there's no parent frame |
| 10533 | // to inherit from. |
| 10534 | if (MOZ_LIKELY(mContent)(__builtin_expect(!!(mContent), 1))) { |
| 10535 | Element* parentElement = mContent->GetFlattenedTreeParentElement(); |
| 10536 | if (MOZ_LIKELY(parentElement)(__builtin_expect(!!(parentElement), 1))) { |
| 10537 | auto pseudo = Style()->GetPseudoType(); |
| 10538 | if (pseudo == PseudoStyleType::NotPseudo || !mContent->IsElement() || |
| 10539 | (!PseudoStyle::IsAnonBox(pseudo) && |
| 10540 | // Ensure that we don't return the display:contents style |
| 10541 | // of the parent content for pseudos that have the same content |
| 10542 | // as their primary frame (like -moz-list-bullets do): |
| 10543 | IsPrimaryFrame()) || |
| 10544 | /* if next is true then it's really a request for the table frame's |
| 10545 | parent context, see nsTable[Outer]Frame::GetParentComputedStyle. */ |
| 10546 | pseudo == PseudoStyleType::tableWrapper) { |
| 10547 | // In some edge cases involving display: contents, we may end up here |
| 10548 | // for something that's pending to be reframed. In this case we return |
| 10549 | // the wrong style from here (because we've already lost track of it!), |
| 10550 | // but it's not a big deal as we're going to be reframed anyway. |
| 10551 | if (MOZ_LIKELY(parentElement->HasServoData())(__builtin_expect(!!(parentElement->HasServoData()), 1)) && |
| 10552 | Servo_Element_IsDisplayContents(parentElement)) { |
| 10553 | RefPtr<ComputedStyle> style = |
| 10554 | ServoStyleSet::ResolveServoStyle(*parentElement); |
| 10555 | // NOTE(emilio): we return a weak reference because the element also |
| 10556 | // holds the style context alive. This is a bit silly (we could've |
| 10557 | // returned a weak ref directly), but it's probably not worth |
| 10558 | // optimizing, given this function has just one caller which is rare, |
| 10559 | // and this path is rare itself. |
| 10560 | return style; |
| 10561 | } |
| 10562 | } |
| 10563 | } else { |
| 10564 | if (Style()->GetPseudoType() == PseudoStyleType::NotPseudo) { |
| 10565 | // We're a frame for the root. We have no style parent. |
| 10566 | return nullptr; |
| 10567 | } |
| 10568 | } |
| 10569 | } |
| 10570 | |
| 10571 | if (!HasAnyStateBits(NS_FRAME_OUT_OF_FLOW)) { |
| 10572 | /* |
| 10573 | * If this frame is an anonymous block created when an inline with a block |
| 10574 | * inside it got split, then the parent style is on its preceding inline. We |
| 10575 | * can get to it using GetIBSplitSiblingForAnonymousBlock. |
| 10576 | */ |
| 10577 | if (HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT)) { |
| 10578 | nsIFrame* ibSplitSibling = GetIBSplitSiblingForAnonymousBlock(this); |
| 10579 | if (ibSplitSibling) { |
| 10580 | return (*aProviderFrame = ibSplitSibling)->Style(); |
| 10581 | } |
| 10582 | } |
| 10583 | |
| 10584 | // If this frame is one of the blocks that split an inline, we must |
| 10585 | // return the "special" inline parent, i.e., the parent that this |
| 10586 | // frame would have if we didn't mangle the frame structure. |
| 10587 | *aProviderFrame = GetCorrectedParent(this); |
| 10588 | return *aProviderFrame ? (*aProviderFrame)->Style() : nullptr; |
| 10589 | } |
| 10590 | |
| 10591 | // We're an out-of-flow frame. For out-of-flow frames, we must |
| 10592 | // resolve underneath the placeholder's parent. The placeholder is |
| 10593 | // reached from the first-in-flow. |
| 10594 | nsPlaceholderFrame* placeholder = FirstInFlow()->GetPlaceholderFrame(); |
| 10595 | if (!placeholder) { |
| 10596 | MOZ_ASSERT_UNREACHABLE("no placeholder frame for out-of-flow frame")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: " "no placeholder frame for out-of-flow frame" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10596); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "no placeholder frame for out-of-flow frame" ")"); do { *((volatile int*)__null) = 10596; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 10597 | *aProviderFrame = GetCorrectedParent(this); |
| 10598 | return *aProviderFrame ? (*aProviderFrame)->Style() : nullptr; |
| 10599 | } |
| 10600 | return placeholder->GetParentComputedStyleForOutOfFlow(aProviderFrame); |
| 10601 | } |
| 10602 | |
| 10603 | void nsIFrame::GetLastLeaf(nsIFrame** aFrame) { |
| 10604 | if (!aFrame || !*aFrame) return; |
| 10605 | nsIFrame* child = *aFrame; |
| 10606 | // if we are a block frame then go for the last line of 'this' |
| 10607 | while (1) { |
| 10608 | child = child->PrincipalChildList().FirstChild(); |
| 10609 | if (!child) return; // nothing to do |
| 10610 | nsIFrame* siblingFrame; |
| 10611 | nsIContent* content; |
| 10612 | // ignore anonymous elements, e.g. mozTableAdd* mozTableRemove* |
| 10613 | // see bug 278197 comment #12 #13 for details |
| 10614 | while ((siblingFrame = child->GetNextSibling()) && |
| 10615 | (content = siblingFrame->GetContent()) && |
| 10616 | !content->IsRootOfNativeAnonymousSubtree()) |
| 10617 | child = siblingFrame; |
| 10618 | *aFrame = child; |
| 10619 | } |
| 10620 | } |
| 10621 | |
| 10622 | void nsIFrame::GetFirstLeaf(nsIFrame** aFrame) { |
| 10623 | if (!aFrame || !*aFrame) return; |
| 10624 | nsIFrame* child = *aFrame; |
| 10625 | while (1) { |
| 10626 | child = child->PrincipalChildList().FirstChild(); |
| 10627 | if (!child) return; // nothing to do |
| 10628 | *aFrame = child; |
| 10629 | } |
| 10630 | } |
| 10631 | |
| 10632 | bool nsIFrame::IsFocusableDueToScrollFrame() { |
| 10633 | if (!IsScrollFrame()) { |
| 10634 | if (nsFieldSetFrame* fieldset = do_QueryFrame(this)) { |
| 10635 | // TODO: Do we have similar special-cases like this where we can have |
| 10636 | // anonymous scrollable boxes hanging off a primary frame? |
| 10637 | if (nsIFrame* inner = fieldset->GetInner()) { |
| 10638 | return inner->IsFocusableDueToScrollFrame(); |
| 10639 | } |
| 10640 | } |
| 10641 | return false; |
| 10642 | } |
| 10643 | if (!mContent->IsHTMLElement()) { |
| 10644 | return false; |
| 10645 | } |
| 10646 | if (mContent->IsRootOfNativeAnonymousSubtree()) { |
| 10647 | return false; |
| 10648 | } |
| 10649 | if (!mContent->GetParent()) { |
| 10650 | return false; |
| 10651 | } |
| 10652 | if (mContent->AsElement()->HasAttr(nsGkAtoms::tabindex)) { |
| 10653 | return false; |
| 10654 | } |
| 10655 | // Elements with scrollable view are focusable with script & tabbable |
| 10656 | // Otherwise you couldn't scroll them with keyboard, which is an accessibility |
| 10657 | // issue (e.g. Section 508 rules) However, we don't make them to be focusable |
| 10658 | // with the mouse, because the extra focus outlines are considered |
| 10659 | // unnecessarily ugly. When clicked on, the selection position within the |
| 10660 | // element will be enough to make them keyboard scrollable. |
| 10661 | nsIScrollableFrame* scrollFrame = do_QueryFrame(this); |
| 10662 | if (!scrollFrame) { |
| 10663 | return false; |
| 10664 | } |
| 10665 | if (scrollFrame->IsForTextControlWithNoScrollbars()) { |
| 10666 | return false; |
| 10667 | } |
| 10668 | if (scrollFrame->GetScrollStyles().IsHiddenInBothDirections()) { |
| 10669 | return false; |
| 10670 | } |
| 10671 | if (scrollFrame->GetScrollRange().IsEqualEdges(nsRect(0, 0, 0, 0))) { |
| 10672 | return false; |
| 10673 | } |
| 10674 | return true; |
| 10675 | } |
| 10676 | |
| 10677 | Focusable nsIFrame::IsFocusable(bool aWithMouse, bool aCheckVisibility) { |
| 10678 | // cannot focus content in print preview mode. Only the root can be focused, |
| 10679 | // but that's handled elsewhere. |
| 10680 | if (PresContext()->Type() == nsPresContext::eContext_PrintPreview) { |
| 10681 | return {}; |
| 10682 | } |
| 10683 | |
| 10684 | if (!mContent || !mContent->IsElement()) { |
| 10685 | return {}; |
| 10686 | } |
| 10687 | |
| 10688 | if (aCheckVisibility && !IsVisibleConsideringAncestors()) { |
| 10689 | return {}; |
| 10690 | } |
| 10691 | |
| 10692 | const StyleUserFocus uf = StyleUI()->UserFocus(); |
| 10693 | if (uf == StyleUserFocus::None) { |
| 10694 | return {}; |
| 10695 | } |
| 10696 | MOZ_ASSERT(!StyleUI()->IsInert(), "inert implies -moz-user-focus: none")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!StyleUI()->IsInert())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!StyleUI()->IsInert()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!StyleUI()->IsInert()" " (" "inert implies -moz-user-focus: none" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10696); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!StyleUI()->IsInert()" ") (" "inert implies -moz-user-focus: none" ")"); do { *((volatile int*)__null) = 10696; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 10697 | |
| 10698 | const PseudoStyleType pseudo = Style()->GetPseudoType(); |
| 10699 | if (pseudo == PseudoStyleType::anonymousItem) { |
| 10700 | return {}; |
| 10701 | } |
| 10702 | |
| 10703 | Focusable focusable; |
| 10704 | if (auto* xul = nsXULElement::FromNode(mContent)) { |
| 10705 | // As a legacy special-case, -moz-user-focus controls focusability and |
| 10706 | // tabability of XUL elements in some circumstances (which default to |
| 10707 | // -moz-user-focus: ignore). |
| 10708 | auto focusability = xul->GetXULFocusability(aWithMouse); |
| 10709 | focusable.mFocusable = |
| 10710 | focusability.mForcedFocusable.valueOr(uf == StyleUserFocus::Normal); |
| 10711 | if (focusable) { |
| 10712 | focusable.mTabIndex = focusability.mForcedTabIndexIfFocusable.valueOr(0); |
| 10713 | } |
| 10714 | } else { |
| 10715 | focusable = mContent->IsFocusableWithoutStyle(aWithMouse); |
| 10716 | } |
| 10717 | |
| 10718 | if (focusable) { |
| 10719 | return focusable; |
| 10720 | } |
| 10721 | |
| 10722 | // If we're focusing with the mouse we never focus scroll areas. |
| 10723 | if (!aWithMouse && IsFocusableDueToScrollFrame()) { |
| 10724 | return {true, 0}; |
| 10725 | } |
| 10726 | |
| 10727 | // FIXME(emilio): some callers rely on somewhat broken return values |
| 10728 | // (focusable = false, but non-negative tab-index) from |
| 10729 | // IsFocusableWithoutStyle (for image maps in particular). |
| 10730 | return focusable; |
| 10731 | } |
| 10732 | |
| 10733 | /** |
| 10734 | * @return true if this text frame ends with a newline character which is |
| 10735 | * treated as preformatted. It should return false if this is not a text frame. |
| 10736 | */ |
| 10737 | bool nsIFrame::HasSignificantTerminalNewline() const { return false; } |
| 10738 | |
| 10739 | static StyleVerticalAlignKeyword ConvertSVGDominantBaselineToVerticalAlign( |
| 10740 | StyleDominantBaseline aDominantBaseline) { |
| 10741 | // Most of these are approximate mappings. |
| 10742 | switch (aDominantBaseline) { |
| 10743 | case StyleDominantBaseline::Hanging: |
| 10744 | case StyleDominantBaseline::TextBeforeEdge: |
| 10745 | return StyleVerticalAlignKeyword::TextTop; |
| 10746 | case StyleDominantBaseline::TextAfterEdge: |
| 10747 | case StyleDominantBaseline::Ideographic: |
| 10748 | return StyleVerticalAlignKeyword::TextBottom; |
| 10749 | case StyleDominantBaseline::Central: |
| 10750 | case StyleDominantBaseline::Middle: |
| 10751 | case StyleDominantBaseline::Mathematical: |
| 10752 | return StyleVerticalAlignKeyword::Middle; |
| 10753 | case StyleDominantBaseline::Auto: |
| 10754 | case StyleDominantBaseline::Alphabetic: |
| 10755 | return StyleVerticalAlignKeyword::Baseline; |
| 10756 | default: |
| 10757 | MOZ_ASSERT_UNREACHABLE("unexpected aDominantBaseline 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: " "unexpected aDominantBaseline value" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10757); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "unexpected aDominantBaseline value" ")"); do { *((volatile int*)__null) = 10757; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 10758 | return StyleVerticalAlignKeyword::Baseline; |
| 10759 | } |
| 10760 | } |
| 10761 | |
| 10762 | Maybe<StyleVerticalAlignKeyword> nsIFrame::VerticalAlignEnum() const { |
| 10763 | if (IsInSVGTextSubtree()) { |
| 10764 | StyleDominantBaseline dominantBaseline = StyleSVG()->mDominantBaseline; |
| 10765 | return Some(ConvertSVGDominantBaselineToVerticalAlign(dominantBaseline)); |
| 10766 | } |
| 10767 | |
| 10768 | const auto& verticalAlign = StyleDisplay()->mVerticalAlign; |
| 10769 | if (verticalAlign.IsKeyword()) { |
| 10770 | return Some(verticalAlign.AsKeyword()); |
| 10771 | } |
| 10772 | |
| 10773 | return Nothing(); |
| 10774 | } |
| 10775 | |
| 10776 | void nsIFrame::UpdateStyleOfChildAnonBox(nsIFrame* aChildFrame, |
| 10777 | ServoRestyleState& aRestyleState) { |
| 10778 | #ifdef DEBUG1 |
| 10779 | nsIFrame* parent = aChildFrame->GetInFlowParent(); |
| 10780 | if (aChildFrame->IsTableFrame()) { |
| 10781 | parent = parent->GetParent(); |
| 10782 | } |
| 10783 | if (parent->IsLineFrame()) { |
| 10784 | parent = parent->GetParent(); |
| 10785 | } |
| 10786 | MOZ_ASSERT(nsLayoutUtils::FirstContinuationOrIBSplitSibling(parent) == this,do { static_assert( mozilla::detail::AssertionConditionType< decltype(nsLayoutUtils::FirstContinuationOrIBSplitSibling(parent ) == this)>::isValid, "invalid assertion condition"); if ( (__builtin_expect(!!(!(!!(nsLayoutUtils::FirstContinuationOrIBSplitSibling (parent) == this))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("nsLayoutUtils::FirstContinuationOrIBSplitSibling(parent) == this" " (" "This should only be used for children!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10787); AnnotateMozCrashReason("MOZ_ASSERT" "(" "nsLayoutUtils::FirstContinuationOrIBSplitSibling(parent) == this" ") (" "This should only be used for children!" ")"); do { *( (volatile int*)__null) = 10787; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) |
| 10787 | "This should only be used for children!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(nsLayoutUtils::FirstContinuationOrIBSplitSibling(parent ) == this)>::isValid, "invalid assertion condition"); if ( (__builtin_expect(!!(!(!!(nsLayoutUtils::FirstContinuationOrIBSplitSibling (parent) == this))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("nsLayoutUtils::FirstContinuationOrIBSplitSibling(parent) == this" " (" "This should only be used for children!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10787); AnnotateMozCrashReason("MOZ_ASSERT" "(" "nsLayoutUtils::FirstContinuationOrIBSplitSibling(parent) == this" ") (" "This should only be used for children!" ")"); do { *( (volatile int*)__null) = 10787; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 10788 | #endif // DEBUG |
| 10789 | MOZ_ASSERT(!GetContent() || !aChildFrame->GetContent() ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(!GetContent() || !aChildFrame->GetContent() || aChildFrame ->GetContent() == GetContent())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!GetContent() || !aChildFrame ->GetContent() || aChildFrame->GetContent() == GetContent ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!GetContent() || !aChildFrame->GetContent() || aChildFrame->GetContent() == GetContent()" " (" "What content node is it a frame for?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10791); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!GetContent() || !aChildFrame->GetContent() || aChildFrame->GetContent() == GetContent()" ") (" "What content node is it a frame for?" ")"); do { *((volatile int*)__null) = 10791; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 10790 | aChildFrame->GetContent() == GetContent(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!GetContent() || !aChildFrame->GetContent() || aChildFrame ->GetContent() == GetContent())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!GetContent() || !aChildFrame ->GetContent() || aChildFrame->GetContent() == GetContent ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!GetContent() || !aChildFrame->GetContent() || aChildFrame->GetContent() == GetContent()" " (" "What content node is it a frame for?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10791); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!GetContent() || !aChildFrame->GetContent() || aChildFrame->GetContent() == GetContent()" ") (" "What content node is it a frame for?" ")"); do { *((volatile int*)__null) = 10791; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 10791 | "What content node is it a frame for?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!GetContent() || !aChildFrame->GetContent() || aChildFrame ->GetContent() == GetContent())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!GetContent() || !aChildFrame ->GetContent() || aChildFrame->GetContent() == GetContent ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("!GetContent() || !aChildFrame->GetContent() || aChildFrame->GetContent() == GetContent()" " (" "What content node is it a frame for?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10791); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!GetContent() || !aChildFrame->GetContent() || aChildFrame->GetContent() == GetContent()" ") (" "What content node is it a frame for?" ")"); do { *((volatile int*)__null) = 10791; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 10792 | MOZ_ASSERT(!aChildFrame->GetPrevContinuation(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aChildFrame->GetPrevContinuation())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!aChildFrame->GetPrevContinuation()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aChildFrame->GetPrevContinuation()" " (" "Only first continuations should end up here" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10793); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aChildFrame->GetPrevContinuation()" ") (" "Only first continuations should end up here" ")"); do { *((volatile int*)__null) = 10793; __attribute__((nomerge)) ::abort(); } while (false); } } while (false) |
| 10793 | "Only first continuations should end up here")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aChildFrame->GetPrevContinuation())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!aChildFrame->GetPrevContinuation()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!aChildFrame->GetPrevContinuation()" " (" "Only first continuations should end up here" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10793); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aChildFrame->GetPrevContinuation()" ") (" "Only first continuations should end up here" ")"); do { *((volatile int*)__null) = 10793; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 10794 | |
| 10795 | // We could force the caller to pass in the pseudo, since some callers know it |
| 10796 | // statically... But this API is a bit nicer. |
| 10797 | auto pseudo = aChildFrame->Style()->GetPseudoType(); |
| 10798 | MOZ_ASSERT(PseudoStyle::IsAnonBox(pseudo), "Child is not an anon box?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(PseudoStyle::IsAnonBox(pseudo))>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(PseudoStyle::IsAnonBox(pseudo )))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("PseudoStyle::IsAnonBox(pseudo)" " (" "Child is not an anon box?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10798); AnnotateMozCrashReason("MOZ_ASSERT" "(" "PseudoStyle::IsAnonBox(pseudo)" ") (" "Child is not an anon box?" ")"); do { *((volatile int *)__null) = 10798; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 10799 | MOZ_ASSERT(!PseudoStyle::IsNonInheritingAnonBox(pseudo),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!PseudoStyle::IsNonInheritingAnonBox(pseudo))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!PseudoStyle::IsNonInheritingAnonBox(pseudo)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!PseudoStyle::IsNonInheritingAnonBox(pseudo)" " (" "Why did the caller bother calling us?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10800); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!PseudoStyle::IsNonInheritingAnonBox(pseudo)" ") (" "Why did the caller bother calling us?" ")"); do { *(( volatile int*)__null) = 10800; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) |
| 10800 | "Why did the caller bother calling us?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!PseudoStyle::IsNonInheritingAnonBox(pseudo))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!PseudoStyle::IsNonInheritingAnonBox(pseudo)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!PseudoStyle::IsNonInheritingAnonBox(pseudo)" " (" "Why did the caller bother calling us?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10800); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!PseudoStyle::IsNonInheritingAnonBox(pseudo)" ") (" "Why did the caller bother calling us?" ")"); do { *(( volatile int*)__null) = 10800; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 10801 | |
| 10802 | // Anon boxes inherit from their parent; that's us. |
| 10803 | RefPtr<ComputedStyle> newContext = |
| 10804 | aRestyleState.StyleSet().ResolveInheritingAnonymousBoxStyle(pseudo, |
| 10805 | Style()); |
| 10806 | |
| 10807 | nsChangeHint childHint = |
| 10808 | UpdateStyleOfOwnedChildFrame(aChildFrame, newContext, aRestyleState); |
| 10809 | |
| 10810 | // Now that we've updated the style on aChildFrame, check whether it itself |
| 10811 | // has anon boxes to deal with. |
| 10812 | ServoRestyleState childrenState(*aChildFrame, aRestyleState, childHint, |
| 10813 | ServoRestyleState::Type::InFlow); |
| 10814 | aChildFrame->UpdateStyleOfOwnedAnonBoxes(childrenState); |
| 10815 | |
| 10816 | // Assuming anon boxes don't have ::backdrop associated with them... if that |
| 10817 | // ever changes, we'd need to handle that here, like we do in |
| 10818 | // RestyleManager::ProcessPostTraversal |
| 10819 | |
| 10820 | // We do need to handle block pseudo-elements here, though. Especially list |
| 10821 | // bullets. |
| 10822 | if (nsBlockFrame* block = do_QueryFrame(aChildFrame)) { |
| 10823 | block->UpdatePseudoElementStyles(childrenState); |
| 10824 | } |
| 10825 | } |
| 10826 | |
| 10827 | /* static */ |
| 10828 | nsChangeHint nsIFrame::UpdateStyleOfOwnedChildFrame( |
| 10829 | nsIFrame* aChildFrame, ComputedStyle* aNewComputedStyle, |
| 10830 | ServoRestyleState& aRestyleState, |
| 10831 | const Maybe<ComputedStyle*>& aContinuationComputedStyle) { |
| 10832 | MOZ_ASSERT(!aChildFrame->GetAdditionalComputedStyle(0),do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aChildFrame->GetAdditionalComputedStyle(0))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aChildFrame->GetAdditionalComputedStyle(0)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("!aChildFrame->GetAdditionalComputedStyle(0)" " (" "We don't handle additional styles here" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10833); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aChildFrame->GetAdditionalComputedStyle(0)" ") (" "We don't handle additional styles here" ")"); do { *( (volatile int*)__null) = 10833; __attribute__((nomerge)) ::abort (); } while (false); } } while (false) |
| 10833 | "We don't handle additional styles here")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!aChildFrame->GetAdditionalComputedStyle(0))>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!aChildFrame->GetAdditionalComputedStyle(0)))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("!aChildFrame->GetAdditionalComputedStyle(0)" " (" "We don't handle additional styles here" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10833); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!aChildFrame->GetAdditionalComputedStyle(0)" ") (" "We don't handle additional styles here" ")"); do { *( (volatile int*)__null) = 10833; __attribute__((nomerge)) ::abort (); } while (false); } } while (false); |
| 10834 | |
| 10835 | // Figure out whether we have an actual change. It's important that we do |
| 10836 | // this, for several reasons: |
| 10837 | // |
| 10838 | // 1) Even if all the child's changes are due to properties it inherits from |
| 10839 | // us, it's possible that no one ever asked us for those style structs and |
| 10840 | // hence changes to them aren't reflected in the changes handled at all. |
| 10841 | // |
| 10842 | // 2) Content can change stylesheets that change the styles of pseudos, and |
| 10843 | // extensions can add/remove stylesheets that change the styles of |
| 10844 | // anonymous boxes directly. |
| 10845 | uint32_t equalStructs; // Not used, actually. |
| 10846 | nsChangeHint childHint = aChildFrame->Style()->CalcStyleDifference( |
| 10847 | *aNewComputedStyle, &equalStructs); |
| 10848 | |
| 10849 | // If aChildFrame is out of flow, then aRestyleState's "changes handled by the |
| 10850 | // parent" doesn't apply to it, because it may have some other parent in the |
| 10851 | // frame tree. |
| 10852 | if (!aChildFrame->HasAnyStateBits(NS_FRAME_OUT_OF_FLOW)) { |
| 10853 | childHint = NS_RemoveSubsumedHints( |
| 10854 | childHint, aRestyleState.ChangesHandledFor(aChildFrame)); |
| 10855 | } |
| 10856 | if (childHint) { |
| 10857 | if (childHint & nsChangeHint_ReconstructFrame) { |
| 10858 | // If we generate a reconstruct here, remove any non-reconstruct hints we |
| 10859 | // may have already generated for this content. |
| 10860 | aRestyleState.ChangeList().PopChangesForContent( |
| 10861 | aChildFrame->GetContent()); |
| 10862 | } |
| 10863 | aRestyleState.ChangeList().AppendChange( |
| 10864 | aChildFrame, aChildFrame->GetContent(), childHint); |
| 10865 | } |
| 10866 | |
| 10867 | aChildFrame->SetComputedStyle(aNewComputedStyle); |
| 10868 | ComputedStyle* continuationStyle = aContinuationComputedStyle |
| 10869 | ? *aContinuationComputedStyle |
| 10870 | : aNewComputedStyle; |
| 10871 | for (nsIFrame* kid = aChildFrame->GetNextContinuation(); kid; |
| 10872 | kid = kid->GetNextContinuation()) { |
| 10873 | MOZ_ASSERT(!kid->GetAdditionalComputedStyle(0))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!kid->GetAdditionalComputedStyle(0))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!kid->GetAdditionalComputedStyle(0)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!kid->GetAdditionalComputedStyle(0)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10873); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!kid->GetAdditionalComputedStyle(0)" ")"); do { *((volatile int*)__null) = 10873; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 10874 | kid->SetComputedStyle(continuationStyle); |
| 10875 | } |
| 10876 | |
| 10877 | return childHint; |
| 10878 | } |
| 10879 | |
| 10880 | /* static */ |
| 10881 | void nsIFrame::AddInPopupStateBitToDescendants(nsIFrame* aFrame) { |
| 10882 | if (!aFrame->HasAnyStateBits(NS_FRAME_IN_POPUP) && |
| 10883 | aFrame->TrackingVisibility()) { |
| 10884 | // Assume all frames in popups are visible. |
| 10885 | aFrame->IncApproximateVisibleCount(); |
| 10886 | } |
| 10887 | |
| 10888 | aFrame->AddStateBits(NS_FRAME_IN_POPUP); |
| 10889 | |
| 10890 | for (const auto& childList : aFrame->CrossDocChildLists()) { |
| 10891 | for (nsIFrame* child : childList.mList) { |
| 10892 | AddInPopupStateBitToDescendants(child); |
| 10893 | } |
| 10894 | } |
| 10895 | } |
| 10896 | |
| 10897 | /* static */ |
| 10898 | void nsIFrame::RemoveInPopupStateBitFromDescendants(nsIFrame* aFrame) { |
| 10899 | if (!aFrame->HasAnyStateBits(NS_FRAME_IN_POPUP) || |
| 10900 | nsLayoutUtils::IsPopup(aFrame)) { |
| 10901 | return; |
| 10902 | } |
| 10903 | |
| 10904 | aFrame->RemoveStateBits(NS_FRAME_IN_POPUP); |
| 10905 | |
| 10906 | if (aFrame->TrackingVisibility()) { |
| 10907 | // We assume all frames in popups are visible, so this decrement balances |
| 10908 | // out the increment in AddInPopupStateBitToDescendants above. |
| 10909 | aFrame->DecApproximateVisibleCount(); |
| 10910 | } |
| 10911 | for (const auto& childList : aFrame->CrossDocChildLists()) { |
| 10912 | for (nsIFrame* child : childList.mList) { |
| 10913 | RemoveInPopupStateBitFromDescendants(child); |
| 10914 | } |
| 10915 | } |
| 10916 | } |
| 10917 | |
| 10918 | void nsIFrame::SetParent(nsContainerFrame* aParent) { |
| 10919 | // If our parent is a wrapper anon box, our new parent should be too. We |
| 10920 | // _can_ change parent if our parent is a wrapper anon box, because some |
| 10921 | // wrapper anon boxes can have continuations. |
| 10922 | MOZ_ASSERT_IF(ParentIsWrapperAnonBox(),do { if (ParentIsWrapperAnonBox()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(aParent->Style ()->IsInheritingAnonBox())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParent->Style()->IsInheritingAnonBox ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aParent->Style()->IsInheritingAnonBox()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10923); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParent->Style()->IsInheritingAnonBox()" ")"); do { *((volatile int*)__null) = 10923; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); } } while (false) |
| 10923 | aParent->Style()->IsInheritingAnonBox())do { if (ParentIsWrapperAnonBox()) { do { static_assert( mozilla ::detail::AssertionConditionType<decltype(aParent->Style ()->IsInheritingAnonBox())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aParent->Style()->IsInheritingAnonBox ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aParent->Style()->IsInheritingAnonBox()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10923); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aParent->Style()->IsInheritingAnonBox()" ")"); do { *((volatile int*)__null) = 10923; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); } } while (false); |
| 10924 | |
| 10925 | // Note that the current mParent may already be destroyed at this point. |
| 10926 | mParent = aParent; |
| 10927 | MOZ_DIAGNOSTIC_ASSERT(!mParent || PresShell() == mParent->PresShell())do { static_assert( mozilla::detail::AssertionConditionType< decltype(!mParent || PresShell() == mParent->PresShell())> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(!mParent || PresShell() == mParent->PresShell())) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!mParent || PresShell() == mParent->PresShell()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 10927); AnnotateMozCrashReason("MOZ_DIAGNOSTIC_ASSERT" "(" "!mParent || PresShell() == mParent->PresShell()" ")"); do { *((volatile int*)__null) = 10927; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 10928 | |
| 10929 | if (HasAnyStateBits(NS_FRAME_HAS_VIEW | NS_FRAME_HAS_CHILD_WITH_VIEW)) { |
| 10930 | for (nsIFrame* f = aParent; |
| 10931 | f && !f->HasAnyStateBits(NS_FRAME_HAS_CHILD_WITH_VIEW); |
| 10932 | f = f->GetParent()) { |
| 10933 | f->AddStateBits(NS_FRAME_HAS_CHILD_WITH_VIEW); |
| 10934 | } |
| 10935 | } |
| 10936 | |
| 10937 | if (HasAnyStateBits(NS_FRAME_CONTAINS_RELATIVE_BSIZE)) { |
| 10938 | for (nsIFrame* f = aParent; f; f = f->GetParent()) { |
| 10939 | if (f->HasAnyStateBits(NS_FRAME_CONTAINS_RELATIVE_BSIZE)) { |
| 10940 | break; |
| 10941 | } |
| 10942 | f->AddStateBits(NS_FRAME_CONTAINS_RELATIVE_BSIZE); |
| 10943 | } |
| 10944 | } |
| 10945 | |
| 10946 | if (HasAnyStateBits(NS_FRAME_DESCENDANT_INTRINSIC_ISIZE_DEPENDS_ON_BSIZE)) { |
| 10947 | for (nsIFrame* f = aParent; f; f = f->GetParent()) { |
| 10948 | if (f->HasAnyStateBits( |
| 10949 | NS_FRAME_DESCENDANT_INTRINSIC_ISIZE_DEPENDS_ON_BSIZE)) { |
| 10950 | break; |
| 10951 | } |
| 10952 | f->AddStateBits(NS_FRAME_DESCENDANT_INTRINSIC_ISIZE_DEPENDS_ON_BSIZE); |
| 10953 | } |
| 10954 | } |
| 10955 | |
| 10956 | if (HasInvalidFrameInSubtree()) { |
| 10957 | for (nsIFrame* f = aParent; |
| 10958 | f && !f->HasAnyStateBits(NS_FRAME_DESCENDANT_NEEDS_PAINT | |
| 10959 | NS_FRAME_IS_NONDISPLAY); |
| 10960 | f = nsLayoutUtils::GetCrossDocParentFrameInProcess(f)) { |
| 10961 | f->AddStateBits(NS_FRAME_DESCENDANT_NEEDS_PAINT); |
| 10962 | } |
| 10963 | } |
| 10964 | |
| 10965 | if (aParent->HasAnyStateBits(NS_FRAME_IN_POPUP)) { |
| 10966 | AddInPopupStateBitToDescendants(this); |
| 10967 | } else { |
| 10968 | RemoveInPopupStateBitFromDescendants(this); |
| 10969 | } |
| 10970 | |
| 10971 | // If our new parent only has invalid children, then we just invalidate |
| 10972 | // ourselves too. This is probably faster than clearing the flag all |
| 10973 | // the way up the frame tree. |
| 10974 | if (aParent->HasAnyStateBits(NS_FRAME_ALL_DESCENDANTS_NEED_PAINT)) { |
| 10975 | InvalidateFrame(); |
| 10976 | } else { |
| 10977 | SchedulePaint(); |
| 10978 | } |
| 10979 | } |
| 10980 | |
| 10981 | bool nsIFrame::IsStackingContext(const nsStyleDisplay* aStyleDisplay, |
| 10982 | const nsStyleEffects* aStyleEffects) { |
| 10983 | // Properties that influence the output of this function should be handled in |
| 10984 | // change_bits_for_longhand as well. |
| 10985 | if (HasOpacity(aStyleDisplay, aStyleEffects, nullptr)) { |
| 10986 | return true; |
| 10987 | } |
| 10988 | if (IsTransformed()) { |
| 10989 | return true; |
| 10990 | } |
| 10991 | auto willChange = aStyleDisplay->mWillChange.bits; |
| 10992 | if (aStyleDisplay->IsContainPaint() || aStyleDisplay->IsContainLayout() || |
| 10993 | willChange & StyleWillChangeBits::CONTAIN) { |
| 10994 | if (SupportsContainLayoutAndPaint()) { |
| 10995 | return true; |
| 10996 | } |
| 10997 | } |
| 10998 | // strictly speaking, 'perspective' doesn't require visual atomicity, |
| 10999 | // but the spec says it acts like the rest of these |
| 11000 | if (aStyleDisplay->HasPerspectiveStyle() || |
| 11001 | willChange & StyleWillChangeBits::PERSPECTIVE) { |
| 11002 | if (SupportsCSSTransforms()) { |
| 11003 | return true; |
| 11004 | } |
| 11005 | } |
| 11006 | if (!StylePosition()->mZIndex.IsAuto() || |
| 11007 | willChange & StyleWillChangeBits::Z_INDEX) { |
| 11008 | if (ZIndexApplies()) { |
| 11009 | return true; |
| 11010 | } |
| 11011 | } |
| 11012 | return aStyleEffects->mMixBlendMode != StyleBlend::Normal || |
| 11013 | SVGIntegrationUtils::UsingEffectsForFrame(this) || |
| 11014 | aStyleDisplay->IsPositionForcingStackingContext() || |
| 11015 | aStyleDisplay->mIsolation != StyleIsolation::Auto || |
| 11016 | willChange & StyleWillChangeBits::STACKING_CONTEXT_UNCONDITIONAL; |
| 11017 | } |
| 11018 | |
| 11019 | bool nsIFrame::IsStackingContext() { |
| 11020 | return IsStackingContext(StyleDisplay(), StyleEffects()); |
| 11021 | } |
| 11022 | |
| 11023 | static bool IsFrameScrolledOutOfView(const nsIFrame* aTarget, |
| 11024 | const nsRect& aTargetRect, |
| 11025 | const nsIFrame* aParent) { |
| 11026 | // The ancestor frame we are checking if it clips out aTargetRect relative to |
| 11027 | // aTarget. |
| 11028 | nsIFrame* clipParent = nullptr; |
| 11029 | |
| 11030 | // find the first scrollable frame or root frame if we are in a fixed pos |
| 11031 | // subtree |
| 11032 | for (nsIFrame* f = const_cast<nsIFrame*>(aParent); f; |
| 11033 | f = nsLayoutUtils::GetCrossDocParentFrameInProcess(f)) { |
| 11034 | nsIScrollableFrame* scrollableFrame = do_QueryFrame(f); |
| 11035 | if (scrollableFrame) { |
| 11036 | clipParent = f; |
| 11037 | break; |
| 11038 | } |
| 11039 | if (f->StyleDisplay()->mPosition == StylePositionProperty::Fixed && |
| 11040 | nsLayoutUtils::IsReallyFixedPos(f)) { |
| 11041 | clipParent = f->GetParent(); |
| 11042 | break; |
| 11043 | } |
| 11044 | } |
| 11045 | |
| 11046 | if (!clipParent) { |
| 11047 | // Even if we couldn't find the nearest scrollable frame, it might mean we |
| 11048 | // are in an out-of-process iframe, try to see if |aTarget| frame is |
| 11049 | // scrolled out of view in an scrollable frame in a cross-process ancestor |
| 11050 | // document. |
| 11051 | return nsLayoutUtils::FrameIsScrolledOutOfViewInCrossProcess(aTarget); |
| 11052 | } |
| 11053 | |
| 11054 | nsRect clipRect = clipParent->InkOverflowRectRelativeToSelf(); |
| 11055 | // We consider that the target is scrolled out if the scrollable (or root) |
| 11056 | // frame is empty. |
| 11057 | if (clipRect.IsEmpty()) { |
| 11058 | return true; |
| 11059 | } |
| 11060 | |
| 11061 | nsRect transformedRect = nsLayoutUtils::TransformFrameRectToAncestor( |
| 11062 | aTarget, aTargetRect, clipParent); |
| 11063 | |
| 11064 | if (transformedRect.IsEmpty()) { |
| 11065 | // If the transformed rect is empty it represents a line or a point that we |
| 11066 | // should check is outside the the scrollable rect. |
| 11067 | if (transformedRect.x > clipRect.XMost() || |
| 11068 | transformedRect.y > clipRect.YMost() || |
| 11069 | clipRect.x > transformedRect.XMost() || |
| 11070 | clipRect.y > transformedRect.YMost()) { |
| 11071 | return true; |
| 11072 | } |
| 11073 | } else if (!transformedRect.Intersects(clipRect)) { |
| 11074 | return true; |
| 11075 | } |
| 11076 | |
| 11077 | nsIFrame* parent = clipParent->GetParent(); |
| 11078 | if (!parent) { |
| 11079 | return false; |
| 11080 | } |
| 11081 | |
| 11082 | return IsFrameScrolledOutOfView(aTarget, aTargetRect, parent); |
| 11083 | } |
| 11084 | |
| 11085 | bool nsIFrame::IsScrolledOutOfView() const { |
| 11086 | nsRect rect = InkOverflowRectRelativeToSelf(); |
| 11087 | return IsFrameScrolledOutOfView(this, rect, this); |
| 11088 | } |
| 11089 | |
| 11090 | gfx::Matrix nsIFrame::ComputeWidgetTransform() const { |
| 11091 | const nsStyleUIReset* uiReset = StyleUIReset(); |
| 11092 | if (uiReset->mMozWindowTransform.IsNone()) { |
| 11093 | return gfx::Matrix(); |
| 11094 | } |
| 11095 | |
| 11096 | TransformReferenceBox refBox(nullptr, nsRect(nsPoint(), GetSize())); |
| 11097 | |
| 11098 | nsPresContext* presContext = PresContext(); |
| 11099 | int32_t appUnitsPerDevPixel = presContext->AppUnitsPerDevPixel(); |
| 11100 | gfx::Matrix4x4 matrix = nsStyleTransformMatrix::ReadTransforms( |
| 11101 | uiReset->mMozWindowTransform, refBox, float(appUnitsPerDevPixel)); |
| 11102 | |
| 11103 | // Apply the -moz-window-transform-origin translation to the matrix. |
| 11104 | const StyleTransformOrigin& origin = uiReset->mWindowTransformOrigin; |
| 11105 | Point transformOrigin = nsStyleTransformMatrix::Convert2DPosition( |
| 11106 | origin.horizontal, origin.vertical, refBox, appUnitsPerDevPixel); |
| 11107 | matrix.ChangeBasis(Point3D(transformOrigin.x, transformOrigin.y, 0)); |
| 11108 | |
| 11109 | gfx::Matrix result2d; |
| 11110 | if (!matrix.CanDraw2D(&result2d)) { |
| 11111 | // FIXME: It would be preferable to reject non-2D transforms at parse time. |
| 11112 | NS_WARNING(NS_DebugBreak(NS_DEBUG_WARNING, "-moz-window-transform does not describe a 2D transform, " "but only 2d transforms are supported", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11114) |
| 11113 | "-moz-window-transform does not describe a 2D transform, "NS_DebugBreak(NS_DEBUG_WARNING, "-moz-window-transform does not describe a 2D transform, " "but only 2d transforms are supported", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11114) |
| 11114 | "but only 2d transforms are supported")NS_DebugBreak(NS_DEBUG_WARNING, "-moz-window-transform does not describe a 2D transform, " "but only 2d transforms are supported", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11114); |
| 11115 | return gfx::Matrix(); |
| 11116 | } |
| 11117 | |
| 11118 | return result2d; |
| 11119 | } |
| 11120 | |
| 11121 | void nsIFrame::DoUpdateStyleOfOwnedAnonBoxes(ServoRestyleState& aRestyleState) { |
| 11122 | // As a special case, we check for {ib}-split block frames here, rather |
| 11123 | // than have an nsInlineFrame::AppendDirectlyOwnedAnonBoxes implementation |
| 11124 | // that returns them. |
| 11125 | // |
| 11126 | // (If we did handle them in AppendDirectlyOwnedAnonBoxes, we would have to |
| 11127 | // return *all* of the in-flow {ib}-split block frames, not just the first |
| 11128 | // one. For restyling, we really just need the first in flow, and the other |
| 11129 | // user of the AppendOwnedAnonBoxes API, AllChildIterator, doesn't need to |
| 11130 | // know about them at all, since these block frames never create NAC. So we |
| 11131 | // avoid any unncessary hashtable lookups for the {ib}-split frames by calling |
| 11132 | // UpdateStyleOfOwnedAnonBoxesForIBSplit directly here.) |
| 11133 | if (IsInlineFrame()) { |
| 11134 | if (HasAnyStateBits(NS_FRAME_PART_OF_IBSPLIT)) { |
| 11135 | static_cast<nsInlineFrame*>(this)->UpdateStyleOfOwnedAnonBoxesForIBSplit( |
| 11136 | aRestyleState); |
| 11137 | } |
| 11138 | return; |
| 11139 | } |
| 11140 | |
| 11141 | AutoTArray<OwnedAnonBox, 4> frames; |
| 11142 | AppendDirectlyOwnedAnonBoxes(frames); |
| 11143 | for (OwnedAnonBox& box : frames) { |
| 11144 | if (box.mUpdateStyleFn) { |
| 11145 | box.mUpdateStyleFn(this, box.mAnonBoxFrame, aRestyleState); |
| 11146 | } else { |
| 11147 | UpdateStyleOfChildAnonBox(box.mAnonBoxFrame, aRestyleState); |
| 11148 | } |
| 11149 | } |
| 11150 | } |
| 11151 | |
| 11152 | /* virtual */ |
| 11153 | void nsIFrame::AppendDirectlyOwnedAnonBoxes(nsTArray<OwnedAnonBox>& aResult) { |
| 11154 | MOZ_ASSERT(!HasAnyStateBits(NS_FRAME_OWNS_ANON_BOXES))do { static_assert( mozilla::detail::AssertionConditionType< decltype(!HasAnyStateBits(NS_FRAME_OWNS_ANON_BOXES))>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(!HasAnyStateBits(NS_FRAME_OWNS_ANON_BOXES)))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!HasAnyStateBits(NS_FRAME_OWNS_ANON_BOXES)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11154); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!HasAnyStateBits(NS_FRAME_OWNS_ANON_BOXES)" ")"); do { *((volatile int*)__null) = 11154; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 11155 | MOZ_ASSERT(false, "Why did this get called?")do { static_assert( mozilla::detail::AssertionConditionType< decltype(false)>::isValid, "invalid assertion condition"); if ((__builtin_expect(!!(!(!!(false))), 0))) { do { } while ( false); MOZ_ReportAssertionFailure("false" " (" "Why did this get called?" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11155); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "Why did this get called?" ")"); do { *((volatile int*)__null ) = 11155; __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 11156 | } |
| 11157 | |
| 11158 | void nsIFrame::DoAppendOwnedAnonBoxes(nsTArray<OwnedAnonBox>& aResult) { |
| 11159 | size_t i = aResult.Length(); |
| 11160 | AppendDirectlyOwnedAnonBoxes(aResult); |
| 11161 | |
| 11162 | // After appending the directly owned anonymous boxes of this frame to |
| 11163 | // aResult above, we need to check each of them to see if they own |
| 11164 | // any anonymous boxes themselves. Note that we keep progressing |
| 11165 | // through aResult, looking for additional entries in aResult from these |
| 11166 | // subsequent AppendDirectlyOwnedAnonBoxes calls. (Thus we can't |
| 11167 | // use a ranged for loop here.) |
| 11168 | |
| 11169 | while (i < aResult.Length()) { |
| 11170 | nsIFrame* f = aResult[i].mAnonBoxFrame; |
| 11171 | if (f->HasAnyStateBits(NS_FRAME_OWNS_ANON_BOXES)) { |
| 11172 | f->AppendDirectlyOwnedAnonBoxes(aResult); |
| 11173 | } |
| 11174 | ++i; |
| 11175 | } |
| 11176 | } |
| 11177 | |
| 11178 | nsIFrame::CaretPosition::CaretPosition() : mContentOffset(0) {} |
| 11179 | |
| 11180 | nsIFrame::CaretPosition::~CaretPosition() = default; |
| 11181 | |
| 11182 | bool nsIFrame::HasCSSAnimations() { |
| 11183 | auto* collection = AnimationCollection<CSSAnimation>::Get(this); |
| 11184 | return collection && !collection->mAnimations.IsEmpty(); |
| 11185 | } |
| 11186 | |
| 11187 | bool nsIFrame::HasCSSTransitions() { |
| 11188 | auto* collection = AnimationCollection<CSSTransition>::Get(this); |
| 11189 | return collection && !collection->mAnimations.IsEmpty(); |
| 11190 | } |
| 11191 | |
| 11192 | void nsIFrame::AddSizeOfExcludingThisForTree(nsWindowSizes& aSizes) const { |
| 11193 | aSizes.mLayoutFramePropertiesSize += |
| 11194 | mProperties.SizeOfExcludingThis(aSizes.mState.mMallocSizeOf); |
| 11195 | |
| 11196 | // We don't do this for Gecko because this stuff is stored in the nsPresArena |
| 11197 | // and so measured elsewhere. |
| 11198 | if (!aSizes.mState.HaveSeenPtr(mComputedStyle)) { |
| 11199 | mComputedStyle->AddSizeOfIncludingThis(aSizes, |
| 11200 | &aSizes.mLayoutComputedValuesNonDom); |
| 11201 | } |
| 11202 | |
| 11203 | // And our additional styles. |
| 11204 | int32_t index = 0; |
| 11205 | while (auto* extra = GetAdditionalComputedStyle(index++)) { |
| 11206 | if (!aSizes.mState.HaveSeenPtr(extra)) { |
| 11207 | extra->AddSizeOfIncludingThis(aSizes, |
| 11208 | &aSizes.mLayoutComputedValuesNonDom); |
| 11209 | } |
| 11210 | } |
| 11211 | |
| 11212 | for (const auto& childList : ChildLists()) { |
| 11213 | for (const nsIFrame* f : childList.mList) { |
| 11214 | f->AddSizeOfExcludingThisForTree(aSizes); |
| 11215 | } |
| 11216 | } |
| 11217 | } |
| 11218 | |
| 11219 | nsRect nsIFrame::GetCompositorHitTestArea(nsDisplayListBuilder* aBuilder) { |
| 11220 | nsRect area; |
| 11221 | |
| 11222 | nsIScrollableFrame* scrollFrame = nsLayoutUtils::GetScrollableFrameFor(this); |
| 11223 | if (scrollFrame) { |
| 11224 | // If the frame is content of a scrollframe, then we need to pick up the |
| 11225 | // area corresponding to the overflow rect as well. Otherwise the parts of |
| 11226 | // the overflow that are not occupied by descendants get skipped and the |
| 11227 | // APZ code sends touch events to the content underneath instead. |
| 11228 | // See https://bugzilla.mozilla.org/show_bug.cgi?id=1127773#c15. |
| 11229 | area = ScrollableOverflowRect(); |
| 11230 | } else { |
| 11231 | area = GetRectRelativeToSelf(); |
| 11232 | } |
| 11233 | |
| 11234 | if (!area.IsEmpty()) { |
| 11235 | return area + aBuilder->ToReferenceFrame(this); |
| 11236 | } |
| 11237 | |
| 11238 | return area; |
| 11239 | } |
| 11240 | |
| 11241 | CompositorHitTestInfo nsIFrame::GetCompositorHitTestInfo( |
| 11242 | nsDisplayListBuilder* aBuilder) { |
| 11243 | CompositorHitTestInfo result = CompositorHitTestInvisibleToHit; |
| 11244 | |
| 11245 | if (aBuilder->IsInsidePointerEventsNoneDoc()) { |
| 11246 | // Somewhere up the parent document chain is a subdocument with pointer- |
| 11247 | // events:none set on it. |
| 11248 | return result; |
| 11249 | } |
| 11250 | if (!GetParent()) { |
| 11251 | MOZ_ASSERT(IsViewportFrame())do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsViewportFrame())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsViewportFrame()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("IsViewportFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11251); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsViewportFrame()" ")"); do { *((volatile int*)__null) = 11251; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 11252 | // Viewport frames are never event targets, other frames, like canvas |
| 11253 | // frames, are the event targets for any regions viewport frames may cover. |
| 11254 | return result; |
| 11255 | } |
| 11256 | if (Style()->PointerEvents() == StylePointerEvents::None) { |
| 11257 | return result; |
| 11258 | } |
| 11259 | if (!StyleVisibility()->IsVisible()) { |
| 11260 | return result; |
| 11261 | } |
| 11262 | |
| 11263 | // Anything that didn't match the above conditions is visible to hit-testing. |
| 11264 | result = CompositorHitTestFlags::eVisibleToHitTest; |
| 11265 | SVGUtils::MaskUsage maskUsage = SVGUtils::DetermineMaskUsage(this, false); |
| 11266 | if (maskUsage.UsingMaskOrClipPath()) { |
| 11267 | // If WebRender is enabled, simple clip-paths can be converted into WR |
| 11268 | // clips that WR knows how to hit-test against, so we don't need to mark |
| 11269 | // it as an irregular area. |
| 11270 | if (!maskUsage.IsSimpleClipShape()) { |
| 11271 | result += CompositorHitTestFlags::eIrregularArea; |
| 11272 | } |
| 11273 | } |
| 11274 | |
| 11275 | if (aBuilder->IsBuildingNonLayerizedScrollbar()) { |
| 11276 | // Scrollbars may be painted into a layer below the actual layer they will |
| 11277 | // scroll, and therefore wheel events may be dispatched to the outer frame |
| 11278 | // instead of the intended scrollframe. To address this, we force a d-t-c |
| 11279 | // region on scrollbar frames that won't be placed in their own layer. See |
| 11280 | // bug 1213324 for details. |
| 11281 | result += CompositorHitTestFlags::eInactiveScrollframe; |
| 11282 | } else if (aBuilder->GetAncestorHasApzAwareEventHandler()) { |
| 11283 | result += CompositorHitTestFlags::eApzAwareListeners; |
| 11284 | } else if (IsRangeFrame()) { |
| 11285 | // Range frames handle touch events directly without having a touch listener |
| 11286 | // so we need to let APZ know that this area cares about events. |
| 11287 | result += CompositorHitTestFlags::eApzAwareListeners; |
| 11288 | } |
| 11289 | |
| 11290 | if (aBuilder->IsTouchEventPrefEnabledDoc()) { |
| 11291 | // Inherit the touch-action flags from the parent, if there is one. We do |
| 11292 | // this because of how the touch-action on a frame combines the touch-action |
| 11293 | // from ancestor DOM elements. Refer to the documentation in |
| 11294 | // TouchActionHelper.cpp for details; this code is meant to be equivalent to |
| 11295 | // that code, but woven into the top-down recursive display list building |
| 11296 | // process. |
| 11297 | CompositorHitTestInfo inheritedTouchAction = |
| 11298 | aBuilder->GetCompositorHitTestInfo() & CompositorHitTestTouchActionMask; |
| 11299 | |
| 11300 | nsIFrame* touchActionFrame = this; |
| 11301 | if (nsIScrollableFrame* scrollFrame = |
| 11302 | nsLayoutUtils::GetScrollableFrameFor(this)) { |
| 11303 | ScrollStyles ss = scrollFrame->GetScrollStyles(); |
| 11304 | if (ss.mVertical != StyleOverflow::Hidden || |
| 11305 | ss.mHorizontal != StyleOverflow::Hidden) { |
| 11306 | touchActionFrame = do_QueryFrame(scrollFrame); |
| 11307 | // On scrollframes, stop inheriting the pan-x and pan-y flags; instead, |
| 11308 | // reset them back to zero to allow panning on the scrollframe unless we |
| 11309 | // encounter an element that disables it that's inside the scrollframe. |
| 11310 | // This is equivalent to the |considerPanning| variable in |
| 11311 | // TouchActionHelper.cpp, but for a top-down traversal. |
| 11312 | CompositorHitTestInfo panMask( |
| 11313 | CompositorHitTestFlags::eTouchActionPanXDisabled, |
| 11314 | CompositorHitTestFlags::eTouchActionPanYDisabled); |
| 11315 | inheritedTouchAction -= panMask; |
| 11316 | } |
| 11317 | } |
| 11318 | |
| 11319 | result += inheritedTouchAction; |
| 11320 | |
| 11321 | const StyleTouchAction touchAction = touchActionFrame->UsedTouchAction(); |
| 11322 | // The CSS allows the syntax auto | none | [pan-x || pan-y] | manipulation |
| 11323 | // so we can eliminate some combinations of things. |
| 11324 | if (touchAction == StyleTouchAction::AUTO) { |
| 11325 | // nothing to do |
| 11326 | } else if (touchAction & StyleTouchAction::MANIPULATION) { |
| 11327 | result += CompositorHitTestFlags::eTouchActionAnimatingZoomDisabled; |
| 11328 | } else { |
| 11329 | // This path handles the cases none | [pan-x || pan-y || pinch-zoom] so |
| 11330 | // double-tap is disabled in here. |
| 11331 | if (!(touchAction & StyleTouchAction::PINCH_ZOOM)) { |
| 11332 | result += CompositorHitTestFlags::eTouchActionPinchZoomDisabled; |
| 11333 | } |
| 11334 | |
| 11335 | result += CompositorHitTestFlags::eTouchActionAnimatingZoomDisabled; |
| 11336 | |
| 11337 | if (!(touchAction & StyleTouchAction::PAN_X)) { |
| 11338 | result += CompositorHitTestFlags::eTouchActionPanXDisabled; |
| 11339 | } |
| 11340 | if (!(touchAction & StyleTouchAction::PAN_Y)) { |
| 11341 | result += CompositorHitTestFlags::eTouchActionPanYDisabled; |
| 11342 | } |
| 11343 | if (touchAction & StyleTouchAction::NONE) { |
| 11344 | // all the touch-action disabling flags will already have been set above |
| 11345 | MOZ_ASSERT(result.contains(CompositorHitTestTouchActionMask))do { static_assert( mozilla::detail::AssertionConditionType< decltype(result.contains(CompositorHitTestTouchActionMask))> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(result.contains(CompositorHitTestTouchActionMask)))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("result.contains(CompositorHitTestTouchActionMask)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11345); AnnotateMozCrashReason("MOZ_ASSERT" "(" "result.contains(CompositorHitTestTouchActionMask)" ")"); do { *((volatile int*)__null) = 11345; __attribute__(( nomerge)) ::abort(); } while (false); } } while (false); |
| 11346 | } |
| 11347 | } |
| 11348 | } |
| 11349 | |
| 11350 | const Maybe<ScrollDirection> scrollDirection = |
| 11351 | aBuilder->GetCurrentScrollbarDirection(); |
| 11352 | if (scrollDirection.isSome()) { |
| 11353 | if (GetContent()->IsXULElement(nsGkAtoms::thumb)) { |
| 11354 | const bool thumbGetsLayer = aBuilder->GetCurrentScrollbarTarget() != |
| 11355 | layers::ScrollableLayerGuid::NULL_SCROLL_ID; |
| 11356 | if (thumbGetsLayer) { |
| 11357 | result += CompositorHitTestFlags::eScrollbarThumb; |
| 11358 | } else { |
| 11359 | result += CompositorHitTestFlags::eInactiveScrollframe; |
| 11360 | } |
| 11361 | } |
| 11362 | |
| 11363 | if (*scrollDirection == ScrollDirection::eVertical) { |
| 11364 | result += CompositorHitTestFlags::eScrollbarVertical; |
| 11365 | } |
| 11366 | |
| 11367 | // includes the ScrollbarFrame, SliderFrame, anything else that |
| 11368 | // might be inside the xul:scrollbar |
| 11369 | result += CompositorHitTestFlags::eScrollbar; |
| 11370 | } |
| 11371 | |
| 11372 | return result; |
| 11373 | } |
| 11374 | |
| 11375 | // Returns true if we can guarantee there is no visible descendants. |
| 11376 | static bool HasNoVisibleDescendants(const nsIFrame* aFrame) { |
| 11377 | for (const auto& childList : aFrame->ChildLists()) { |
| 11378 | for (nsIFrame* f : childList.mList) { |
| 11379 | if (nsPlaceholderFrame::GetRealFrameFor(f) |
| 11380 | ->IsVisibleOrMayHaveVisibleDescendants()) { |
| 11381 | return false; |
| 11382 | } |
| 11383 | } |
| 11384 | } |
| 11385 | return true; |
| 11386 | } |
| 11387 | |
| 11388 | void nsIFrame::UpdateVisibleDescendantsState() { |
| 11389 | if (StyleVisibility()->IsVisible()) { |
| 11390 | // Notify invisible ancestors that a visible descendant exists now. |
| 11391 | nsIFrame* ancestor; |
| 11392 | for (ancestor = GetInFlowParent(); |
| 11393 | ancestor && !ancestor->StyleVisibility()->IsVisible(); |
| 11394 | ancestor = ancestor->GetInFlowParent()) { |
| 11395 | ancestor->mAllDescendantsAreInvisible = false; |
| 11396 | } |
| 11397 | } else { |
| 11398 | mAllDescendantsAreInvisible = HasNoVisibleDescendants(this); |
| 11399 | } |
| 11400 | } |
| 11401 | |
| 11402 | void nsIFrame::UpdateAnimationVisibility() { |
| 11403 | auto* animationCollection = AnimationCollection<CSSAnimation>::Get(this); |
| 11404 | auto* transitionCollection = AnimationCollection<CSSTransition>::Get(this); |
| 11405 | |
| 11406 | if ((!animationCollection || animationCollection->mAnimations.IsEmpty()) && |
| 11407 | (!transitionCollection || transitionCollection->mAnimations.IsEmpty())) { |
| 11408 | return; |
| 11409 | } |
| 11410 | |
| 11411 | bool hidden = IsHiddenByContentVisibilityOnAnyAncestor(); |
| 11412 | if (animationCollection) { |
| 11413 | for (auto& animation : animationCollection->mAnimations) { |
| 11414 | animation->SetHiddenByContentVisibility(hidden); |
| 11415 | } |
| 11416 | } |
| 11417 | |
| 11418 | if (transitionCollection) { |
| 11419 | for (auto& transition : transitionCollection->mAnimations) { |
| 11420 | transition->SetHiddenByContentVisibility(hidden); |
| 11421 | } |
| 11422 | } |
| 11423 | } |
| 11424 | |
| 11425 | nsIFrame::PhysicalAxes nsIFrame::ShouldApplyOverflowClipping( |
| 11426 | const nsStyleDisplay* aDisp) const { |
| 11427 | MOZ_ASSERT(aDisp == StyleDisplay(), "Wrong display struct")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aDisp == StyleDisplay())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aDisp == StyleDisplay()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aDisp == StyleDisplay()" " (" "Wrong display struct" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11427); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aDisp == StyleDisplay()" ") (" "Wrong display struct" ")"); do { *((volatile int*)__null ) = 11427; __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 11428 | |
| 11429 | // 'contain:paint', which we handle as 'overflow:clip' here. Except for |
| 11430 | // scrollframes we don't need contain:paint to add any clipping, because |
| 11431 | // the scrollable frame will already clip overflowing content, and because |
| 11432 | // 'contain:paint' should prevent all means of escaping that clipping |
| 11433 | // (e.g. because it forms a fixed-pos containing block). |
| 11434 | if (aDisp->IsContainPaint() && !IsScrollFrame() && |
| 11435 | SupportsContainLayoutAndPaint()) { |
| 11436 | return PhysicalAxes::Both; |
| 11437 | } |
| 11438 | |
| 11439 | // and overflow:hidden that we should interpret as clip |
| 11440 | if (aDisp->mOverflowX == StyleOverflow::Hidden && |
| 11441 | aDisp->mOverflowY == StyleOverflow::Hidden) { |
| 11442 | // REVIEW: these are the frame types that set up clipping. |
| 11443 | LayoutFrameType type = Type(); |
| 11444 | switch (type) { |
| 11445 | case LayoutFrameType::Table: |
| 11446 | case LayoutFrameType::TableCell: |
| 11447 | case LayoutFrameType::SVGOuterSVG: |
| 11448 | case LayoutFrameType::SVGInnerSVG: |
| 11449 | case LayoutFrameType::SVGSymbol: |
| 11450 | case LayoutFrameType::SVGForeignObject: |
| 11451 | return PhysicalAxes::Both; |
| 11452 | default: |
| 11453 | if (IsReplacedWithBlock()) { |
| 11454 | if (type == mozilla::LayoutFrameType::TextInput) { |
| 11455 | // It has an anonymous scroll frame that handles any overflow. |
| 11456 | return PhysicalAxes::None; |
| 11457 | } |
| 11458 | return PhysicalAxes::Both; |
| 11459 | } |
| 11460 | } |
| 11461 | } |
| 11462 | |
| 11463 | // clip overflow:clip, except for nsListControlFrame which is |
| 11464 | // an nsHTMLScrollFrame sub-class. |
| 11465 | if (MOZ_UNLIKELY((aDisp->mOverflowX == mozilla::StyleOverflow::Clip ||(__builtin_expect(!!((aDisp->mOverflowX == mozilla::StyleOverflow ::Clip || aDisp->mOverflowY == mozilla::StyleOverflow::Clip ) && !IsListControlFrame()), 0)) |
| 11466 | aDisp->mOverflowY == mozilla::StyleOverflow::Clip) &&(__builtin_expect(!!((aDisp->mOverflowX == mozilla::StyleOverflow ::Clip || aDisp->mOverflowY == mozilla::StyleOverflow::Clip ) && !IsListControlFrame()), 0)) |
| 11467 | !IsListControlFrame())(__builtin_expect(!!((aDisp->mOverflowX == mozilla::StyleOverflow ::Clip || aDisp->mOverflowY == mozilla::StyleOverflow::Clip ) && !IsListControlFrame()), 0))) { |
| 11468 | // FIXME: we could use GetViewportScrollStylesOverrideElement() here instead |
| 11469 | // if that worked correctly in a print context. (see bug 1654667) |
| 11470 | const auto* element = Element::FromNodeOrNull(GetContent()); |
| 11471 | if (!element || |
| 11472 | !PresContext()->ElementWouldPropagateScrollStyles(*element)) { |
| 11473 | uint8_t axes = uint8_t(PhysicalAxes::None); |
| 11474 | if (aDisp->mOverflowX == mozilla::StyleOverflow::Clip) { |
| 11475 | axes |= uint8_t(PhysicalAxes::Horizontal); |
| 11476 | } |
| 11477 | if (aDisp->mOverflowY == mozilla::StyleOverflow::Clip) { |
| 11478 | axes |= uint8_t(PhysicalAxes::Vertical); |
| 11479 | } |
| 11480 | return PhysicalAxes(axes); |
| 11481 | } |
| 11482 | } |
| 11483 | |
| 11484 | if (HasAnyStateBits(NS_FRAME_SVG_LAYOUT)) { |
| 11485 | return PhysicalAxes::None; |
| 11486 | } |
| 11487 | |
| 11488 | // If we're paginated and a block, and have NS_BLOCK_CLIP_PAGINATED_OVERFLOW |
| 11489 | // set, then we want to clip our overflow. |
| 11490 | bool clip = HasAnyStateBits(NS_BLOCK_CLIP_PAGINATED_OVERFLOW) && |
| 11491 | PresContext()->IsPaginated() && IsBlockFrame(); |
| 11492 | return clip ? PhysicalAxes::Both : PhysicalAxes::None; |
| 11493 | } |
| 11494 | |
| 11495 | #ifdef DEBUG1 |
| 11496 | static void GetTagName(nsIFrame* aFrame, nsIContent* aContent, int aResultSize, |
| 11497 | char* aResult) { |
| 11498 | if (aContent) { |
| 11499 | snprintf(aResult, aResultSize, "%s@%p", |
| 11500 | nsAtomCString(aContent->NodeInfo()->NameAtom()).get(), aFrame); |
| 11501 | } else { |
| 11502 | snprintf(aResult, aResultSize, "@%p", aFrame); |
| 11503 | } |
| 11504 | } |
| 11505 | |
| 11506 | void nsIFrame::Trace(const char* aMethod, bool aEnter) { |
| 11507 | if (NS_FRAME_LOG_TEST(sFrameLogModule, NS_FRAME_TRACE_CALLS)(int(((mozilla::LogModule*)(sFrameLogModule))->Level()) & (0x1))) { |
| 11508 | char tagbuf[40]; |
| 11509 | GetTagName(this, mContent, sizeof(tagbuf), tagbuf); |
| 11510 | printf_stderr("%s: %s %s", tagbuf, aEnter ? "enter" : "exit", aMethod); |
| 11511 | } |
| 11512 | } |
| 11513 | |
| 11514 | void nsIFrame::Trace(const char* aMethod, bool aEnter, |
| 11515 | const nsReflowStatus& aStatus) { |
| 11516 | if (NS_FRAME_LOG_TEST(sFrameLogModule, NS_FRAME_TRACE_CALLS)(int(((mozilla::LogModule*)(sFrameLogModule))->Level()) & (0x1))) { |
| 11517 | char tagbuf[40]; |
| 11518 | GetTagName(this, mContent, sizeof(tagbuf), tagbuf); |
| 11519 | printf_stderr("%s: %s %s, status=%scomplete%s", tagbuf, |
| 11520 | aEnter ? "enter" : "exit", aMethod, |
| 11521 | aStatus.IsIncomplete() ? "not" : "", |
| 11522 | (aStatus.NextInFlowNeedsReflow()) ? "+reflow" : ""); |
| 11523 | } |
| 11524 | } |
| 11525 | |
| 11526 | void nsIFrame::TraceMsg(const char* aFormatString, ...) { |
| 11527 | if (NS_FRAME_LOG_TEST(sFrameLogModule, NS_FRAME_TRACE_CALLS)(int(((mozilla::LogModule*)(sFrameLogModule))->Level()) & (0x1))) { |
| 11528 | // Format arguments into a buffer |
| 11529 | char argbuf[200]; |
| 11530 | va_list ap; |
| 11531 | va_start(ap, aFormatString)__builtin_va_start(ap, aFormatString); |
| 11532 | VsprintfLiteral(argbuf, aFormatString, ap); |
| 11533 | va_end(ap)__builtin_va_end(ap); |
| 11534 | |
| 11535 | char tagbuf[40]; |
| 11536 | GetTagName(this, mContent, sizeof(tagbuf), tagbuf); |
| 11537 | printf_stderr("%s: %s", tagbuf, argbuf); |
| 11538 | } |
| 11539 | } |
| 11540 | |
| 11541 | void nsIFrame::VerifyDirtyBitSet(const nsFrameList& aFrameList) { |
| 11542 | for (nsIFrame* f : aFrameList) { |
| 11543 | NS_ASSERTION(f->HasAnyStateBits(NS_FRAME_IS_DIRTY), "dirty bit not set")do { if (!(f->HasAnyStateBits(NS_FRAME_IS_DIRTY))) { NS_DebugBreak (NS_DEBUG_ASSERTION, "dirty bit not set", "f->HasAnyStateBits(NS_FRAME_IS_DIRTY)" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11543); MOZ_PretendNoReturn(); } } while (0); |
| 11544 | } |
| 11545 | } |
| 11546 | |
| 11547 | // Start Display Reflow |
| 11548 | DR_cookie::DR_cookie(nsPresContext* aPresContext, nsIFrame* aFrame, |
| 11549 | const ReflowInput& aReflowInput, ReflowOutput& aMetrics, |
| 11550 | nsReflowStatus& aStatus) |
| 11551 | : mPresContext(aPresContext), |
| 11552 | mFrame(aFrame), |
| 11553 | mReflowInput(aReflowInput), |
| 11554 | mMetrics(aMetrics), |
| 11555 | mStatus(aStatus) { |
| 11556 | MOZ_COUNT_CTOR(DR_cookie)do { static_assert(std::is_class_v<DR_cookie>, "Token '" "DR_cookie" "' is not a class type."); static_assert(!std::is_base_of <nsISupports, DR_cookie>::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogCtor((void*)this, "DR_cookie", sizeof (*this)); } while (0); |
| 11557 | mValue = nsIFrame::DisplayReflowEnter(aPresContext, mFrame, mReflowInput); |
| 11558 | } |
| 11559 | |
| 11560 | DR_cookie::~DR_cookie() { |
| 11561 | MOZ_COUNT_DTOR(DR_cookie)do { static_assert(std::is_class_v<DR_cookie>, "Token '" "DR_cookie" "' is not a class type."); static_assert(!std::is_base_of <nsISupports, DR_cookie>::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogDtor((void*)this, "DR_cookie", sizeof (*this)); } while (0); |
| 11562 | nsIFrame::DisplayReflowExit(mPresContext, mFrame, mMetrics, mStatus, mValue); |
| 11563 | } |
| 11564 | |
| 11565 | DR_layout_cookie::DR_layout_cookie(nsIFrame* aFrame) : mFrame(aFrame) { |
| 11566 | MOZ_COUNT_CTOR(DR_layout_cookie)do { static_assert(std::is_class_v<DR_layout_cookie>, "Token '" "DR_layout_cookie" "' is not a class type."); static_assert( !std::is_base_of<nsISupports, DR_layout_cookie>::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR" );; NS_LogCtor((void*)this, "DR_layout_cookie", sizeof(*this) ); } while (0); |
| 11567 | mValue = nsIFrame::DisplayLayoutEnter(mFrame); |
| 11568 | } |
| 11569 | |
| 11570 | DR_layout_cookie::~DR_layout_cookie() { |
| 11571 | MOZ_COUNT_DTOR(DR_layout_cookie)do { static_assert(std::is_class_v<DR_layout_cookie>, "Token '" "DR_layout_cookie" "' is not a class type."); static_assert( !std::is_base_of<nsISupports, DR_layout_cookie>::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR" );; NS_LogDtor((void*)this, "DR_layout_cookie", sizeof(*this) ); } while (0); |
| 11572 | nsIFrame::DisplayLayoutExit(mFrame, mValue); |
| 11573 | } |
| 11574 | |
| 11575 | DR_intrinsic_inline_size_cookie::DR_intrinsic_inline_size_cookie( |
| 11576 | nsIFrame* aFrame, const char* aType, nscoord& aResult) |
| 11577 | : mFrame(aFrame), mType(aType), mResult(aResult) { |
| 11578 | MOZ_COUNT_CTOR(DR_intrinsic_inline_size_cookie)do { static_assert(std::is_class_v<DR_intrinsic_inline_size_cookie >, "Token '" "DR_intrinsic_inline_size_cookie" "' is not a class type." ); static_assert(!std::is_base_of<nsISupports, DR_intrinsic_inline_size_cookie >::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogCtor((void*)this, "DR_intrinsic_inline_size_cookie" , sizeof(*this)); } while (0); |
| 11579 | mValue = nsIFrame::DisplayIntrinsicISizeEnter(mFrame, mType); |
| 11580 | } |
| 11581 | |
| 11582 | DR_intrinsic_inline_size_cookie::~DR_intrinsic_inline_size_cookie() { |
| 11583 | MOZ_COUNT_DTOR(DR_intrinsic_inline_size_cookie)do { static_assert(std::is_class_v<DR_intrinsic_inline_size_cookie >, "Token '" "DR_intrinsic_inline_size_cookie" "' is not a class type." ); static_assert(!std::is_base_of<nsISupports, DR_intrinsic_inline_size_cookie >::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogDtor((void*)this, "DR_intrinsic_inline_size_cookie" , sizeof(*this)); } while (0); |
| 11584 | nsIFrame::DisplayIntrinsicISizeExit(mFrame, mType, mResult, mValue); |
| 11585 | } |
| 11586 | |
| 11587 | DR_intrinsic_size_cookie::DR_intrinsic_size_cookie(nsIFrame* aFrame, |
| 11588 | const char* aType, |
| 11589 | nsSize& aResult) |
| 11590 | : mFrame(aFrame), mType(aType), mResult(aResult) { |
| 11591 | MOZ_COUNT_CTOR(DR_intrinsic_size_cookie)do { static_assert(std::is_class_v<DR_intrinsic_size_cookie >, "Token '" "DR_intrinsic_size_cookie" "' is not a class type." ); static_assert(!std::is_base_of<nsISupports, DR_intrinsic_size_cookie >::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogCtor((void*)this, "DR_intrinsic_size_cookie" , sizeof(*this)); } while (0); |
| 11592 | mValue = nsIFrame::DisplayIntrinsicSizeEnter(mFrame, mType); |
| 11593 | } |
| 11594 | |
| 11595 | DR_intrinsic_size_cookie::~DR_intrinsic_size_cookie() { |
| 11596 | MOZ_COUNT_DTOR(DR_intrinsic_size_cookie)do { static_assert(std::is_class_v<DR_intrinsic_size_cookie >, "Token '" "DR_intrinsic_size_cookie" "' is not a class type." ); static_assert(!std::is_base_of<nsISupports, DR_intrinsic_size_cookie >::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogDtor((void*)this, "DR_intrinsic_size_cookie" , sizeof(*this)); } while (0); |
| 11597 | nsIFrame::DisplayIntrinsicSizeExit(mFrame, mType, mResult, mValue); |
| 11598 | } |
| 11599 | |
| 11600 | DR_init_constraints_cookie::DR_init_constraints_cookie( |
| 11601 | nsIFrame* aFrame, ReflowInput* aState, nscoord aCBWidth, nscoord aCBHeight, |
| 11602 | const mozilla::Maybe<mozilla::LogicalMargin> aBorder, |
| 11603 | const mozilla::Maybe<mozilla::LogicalMargin> aPadding) |
| 11604 | : mFrame(aFrame), mState(aState) { |
| 11605 | MOZ_COUNT_CTOR(DR_init_constraints_cookie)do { static_assert(std::is_class_v<DR_init_constraints_cookie >, "Token '" "DR_init_constraints_cookie" "' is not a class type." ); static_assert(!std::is_base_of<nsISupports, DR_init_constraints_cookie >::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogCtor((void*)this, "DR_init_constraints_cookie" , sizeof(*this)); } while (0); |
| 11606 | nsMargin border; |
| 11607 | if (aBorder) { |
| 11608 | border = aBorder->GetPhysicalMargin(aFrame->GetWritingMode()); |
| 11609 | } |
| 11610 | nsMargin padding; |
| 11611 | if (aPadding) { |
| 11612 | padding = aPadding->GetPhysicalMargin(aFrame->GetWritingMode()); |
| 11613 | } |
| 11614 | mValue = ReflowInput::DisplayInitConstraintsEnter( |
| 11615 | mFrame, mState, aCBWidth, aCBHeight, aBorder ? &border : nullptr, |
| 11616 | aPadding ? &padding : nullptr); |
| 11617 | } |
| 11618 | |
| 11619 | DR_init_constraints_cookie::~DR_init_constraints_cookie() { |
| 11620 | MOZ_COUNT_DTOR(DR_init_constraints_cookie)do { static_assert(std::is_class_v<DR_init_constraints_cookie >, "Token '" "DR_init_constraints_cookie" "' is not a class type." ); static_assert(!std::is_base_of<nsISupports, DR_init_constraints_cookie >::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogDtor((void*)this, "DR_init_constraints_cookie" , sizeof(*this)); } while (0); |
| 11621 | ReflowInput::DisplayInitConstraintsExit(mFrame, mState, mValue); |
| 11622 | } |
| 11623 | |
| 11624 | DR_init_offsets_cookie::DR_init_offsets_cookie( |
| 11625 | nsIFrame* aFrame, SizeComputationInput* aState, nscoord aPercentBasis, |
| 11626 | WritingMode aCBWritingMode, |
| 11627 | const mozilla::Maybe<mozilla::LogicalMargin> aBorder, |
| 11628 | const mozilla::Maybe<mozilla::LogicalMargin> aPadding) |
| 11629 | : mFrame(aFrame), mState(aState) { |
| 11630 | MOZ_COUNT_CTOR(DR_init_offsets_cookie)do { static_assert(std::is_class_v<DR_init_offsets_cookie> , "Token '" "DR_init_offsets_cookie" "' is not a class type." ); static_assert(!std::is_base_of<nsISupports, DR_init_offsets_cookie >::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogCtor((void*)this, "DR_init_offsets_cookie" , sizeof(*this)); } while (0); |
| 11631 | nsMargin border; |
| 11632 | if (aBorder) { |
| 11633 | border = aBorder->GetPhysicalMargin(aFrame->GetWritingMode()); |
| 11634 | } |
| 11635 | nsMargin padding; |
| 11636 | if (aPadding) { |
| 11637 | padding = aPadding->GetPhysicalMargin(aFrame->GetWritingMode()); |
| 11638 | } |
| 11639 | mValue = SizeComputationInput::DisplayInitOffsetsEnter( |
| 11640 | mFrame, mState, aPercentBasis, aCBWritingMode, |
| 11641 | aBorder ? &border : nullptr, aPadding ? &padding : nullptr); |
| 11642 | } |
| 11643 | |
| 11644 | DR_init_offsets_cookie::~DR_init_offsets_cookie() { |
| 11645 | MOZ_COUNT_DTOR(DR_init_offsets_cookie)do { static_assert(std::is_class_v<DR_init_offsets_cookie> , "Token '" "DR_init_offsets_cookie" "' is not a class type." ); static_assert(!std::is_base_of<nsISupports, DR_init_offsets_cookie >::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogDtor((void*)this, "DR_init_offsets_cookie" , sizeof(*this)); } while (0); |
| 11646 | SizeComputationInput::DisplayInitOffsetsExit(mFrame, mState, mValue); |
| 11647 | } |
| 11648 | |
| 11649 | struct DR_Rule; |
| 11650 | |
| 11651 | struct DR_FrameTypeInfo { |
| 11652 | DR_FrameTypeInfo(LayoutFrameType aFrameType, const char* aFrameNameAbbrev, |
| 11653 | const char* aFrameName); |
| 11654 | ~DR_FrameTypeInfo(); |
| 11655 | |
| 11656 | LayoutFrameType mType; |
| 11657 | char mNameAbbrev[16]; |
| 11658 | char mName[32]; |
| 11659 | nsTArray<DR_Rule*> mRules; |
| 11660 | |
| 11661 | private: |
| 11662 | DR_FrameTypeInfo& operator=(const DR_FrameTypeInfo&) = delete; |
| 11663 | }; |
| 11664 | |
| 11665 | struct DR_FrameTreeNode; |
| 11666 | struct DR_Rule; |
| 11667 | |
| 11668 | struct DR_State { |
| 11669 | DR_State(); |
| 11670 | ~DR_State(); |
| 11671 | void Init(); |
| 11672 | void AddFrameTypeInfo(LayoutFrameType aFrameType, |
| 11673 | const char* aFrameNameAbbrev, const char* aFrameName); |
| 11674 | DR_FrameTypeInfo* GetFrameTypeInfo(LayoutFrameType aFrameType); |
| 11675 | DR_FrameTypeInfo* GetFrameTypeInfo(char* aFrameName); |
| 11676 | void InitFrameTypeTable(); |
| 11677 | DR_FrameTreeNode* CreateTreeNode(nsIFrame* aFrame, |
| 11678 | const ReflowInput* aReflowInput); |
| 11679 | void FindMatchingRule(DR_FrameTreeNode& aNode); |
| 11680 | bool RuleMatches(DR_Rule& aRule, DR_FrameTreeNode& aNode); |
| 11681 | bool GetToken(FILE* aFile, char* aBuf, size_t aBufSize); |
| 11682 | DR_Rule* ParseRule(FILE* aFile); |
| 11683 | void ParseRulesFile(); |
| 11684 | void AddRule(nsTArray<DR_Rule*>& aRules, DR_Rule& aRule); |
| 11685 | bool IsWhiteSpace(int c); |
| 11686 | bool GetNumber(char* aBuf, int32_t& aNumber); |
| 11687 | void PrettyUC(nscoord aSize, char* aBuf, int aBufSize); |
| 11688 | void PrintMargin(const char* tag, const nsMargin* aMargin); |
| 11689 | void DisplayFrameTypeInfo(nsIFrame* aFrame, int32_t aIndent); |
| 11690 | void DeleteTreeNode(DR_FrameTreeNode& aNode); |
| 11691 | |
| 11692 | bool mInited; |
| 11693 | bool mActive; |
| 11694 | int32_t mCount; |
| 11695 | int32_t mAssert; |
| 11696 | int32_t mIndent; |
| 11697 | bool mIndentUndisplayedFrames; |
| 11698 | bool mDisplayPixelErrors; |
| 11699 | nsTArray<DR_Rule*> mWildRules; |
| 11700 | nsTArray<DR_FrameTypeInfo> mFrameTypeTable; |
| 11701 | // reflow specific state |
| 11702 | nsTArray<DR_FrameTreeNode*> mFrameTreeLeaves; |
| 11703 | }; |
| 11704 | |
| 11705 | static DR_State* DR_state; // the one and only DR_State |
| 11706 | |
| 11707 | struct DR_RulePart { |
| 11708 | explicit DR_RulePart(LayoutFrameType aFrameType) |
| 11709 | : mFrameType(aFrameType), mNext(0) {} |
| 11710 | |
| 11711 | void Destroy(); |
| 11712 | |
| 11713 | LayoutFrameType mFrameType; |
| 11714 | DR_RulePart* mNext; |
| 11715 | }; |
| 11716 | |
| 11717 | void DR_RulePart::Destroy() { |
| 11718 | if (mNext) { |
| 11719 | mNext->Destroy(); |
| 11720 | } |
| 11721 | delete this; |
| 11722 | } |
| 11723 | |
| 11724 | struct DR_Rule { |
| 11725 | DR_Rule() : mLength(0), mTarget(nullptr), mDisplay(false) { |
| 11726 | MOZ_COUNT_CTOR(DR_Rule)do { static_assert(std::is_class_v<DR_Rule>, "Token '" "DR_Rule" "' is not a class type."); static_assert(!std::is_base_of< nsISupports, DR_Rule>::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogCtor((void*)this, "DR_Rule", sizeof (*this)); } while (0); |
| 11727 | } |
| 11728 | ~DR_Rule() { |
| 11729 | if (mTarget) mTarget->Destroy(); |
| 11730 | MOZ_COUNT_DTOR(DR_Rule)do { static_assert(std::is_class_v<DR_Rule>, "Token '" "DR_Rule" "' is not a class type."); static_assert(!std::is_base_of< nsISupports, DR_Rule>::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogDtor((void*)this, "DR_Rule", sizeof (*this)); } while (0); |
| 11731 | } |
| 11732 | void AddPart(LayoutFrameType aFrameType); |
| 11733 | |
| 11734 | uint32_t mLength; |
| 11735 | DR_RulePart* mTarget; |
| 11736 | bool mDisplay; |
| 11737 | }; |
| 11738 | |
| 11739 | void DR_Rule::AddPart(LayoutFrameType aFrameType) { |
| 11740 | DR_RulePart* newPart = new DR_RulePart(aFrameType); |
| 11741 | newPart->mNext = mTarget; |
| 11742 | mTarget = newPart; |
| 11743 | mLength++; |
| 11744 | } |
| 11745 | |
| 11746 | DR_FrameTypeInfo::~DR_FrameTypeInfo() { |
| 11747 | int32_t numElements; |
| 11748 | numElements = mRules.Length(); |
| 11749 | for (int32_t i = numElements - 1; i >= 0; i--) { |
| 11750 | delete mRules.ElementAt(i); |
| 11751 | } |
| 11752 | } |
| 11753 | |
| 11754 | DR_FrameTypeInfo::DR_FrameTypeInfo(LayoutFrameType aFrameType, |
| 11755 | const char* aFrameNameAbbrev, |
| 11756 | const char* aFrameName) { |
| 11757 | mType = aFrameType; |
| 11758 | PL_strncpyz(mNameAbbrev, aFrameNameAbbrev, sizeof(mNameAbbrev)); |
| 11759 | PL_strncpyz(mName, aFrameName, sizeof(mName)); |
| 11760 | } |
| 11761 | |
| 11762 | struct DR_FrameTreeNode { |
| 11763 | DR_FrameTreeNode(nsIFrame* aFrame, DR_FrameTreeNode* aParent) |
| 11764 | : mFrame(aFrame), mParent(aParent), mDisplay(0), mIndent(0) { |
| 11765 | MOZ_COUNT_CTOR(DR_FrameTreeNode)do { static_assert(std::is_class_v<DR_FrameTreeNode>, "Token '" "DR_FrameTreeNode" "' is not a class type."); static_assert( !std::is_base_of<nsISupports, DR_FrameTreeNode>::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR" );; NS_LogCtor((void*)this, "DR_FrameTreeNode", sizeof(*this) ); } while (0); |
| 11766 | } |
| 11767 | |
| 11768 | MOZ_COUNTED_DTOR(DR_FrameTreeNode)~DR_FrameTreeNode() { do { static_assert(std::is_class_v<DR_FrameTreeNode >, "Token '" "DR_FrameTreeNode" "' is not a class type."); static_assert(!std::is_base_of<nsISupports, DR_FrameTreeNode >::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogDtor((void*)this, "DR_FrameTreeNode" , sizeof(*this)); } while (0); } |
| 11769 | |
| 11770 | nsIFrame* mFrame; |
| 11771 | DR_FrameTreeNode* mParent; |
| 11772 | bool mDisplay; |
| 11773 | uint32_t mIndent; |
| 11774 | }; |
| 11775 | |
| 11776 | // DR_State implementation |
| 11777 | |
| 11778 | DR_State::DR_State() |
| 11779 | : mInited(false), |
| 11780 | mActive(false), |
| 11781 | mCount(0), |
| 11782 | mAssert(-1), |
| 11783 | mIndent(0), |
| 11784 | mIndentUndisplayedFrames(false), |
| 11785 | mDisplayPixelErrors(false) { |
| 11786 | MOZ_COUNT_CTOR(DR_State)do { static_assert(std::is_class_v<DR_State>, "Token '" "DR_State" "' is not a class type."); static_assert(!std::is_base_of <nsISupports, DR_State>::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogCtor((void*)this, "DR_State", sizeof (*this)); } while (0); |
| 11787 | } |
| 11788 | |
| 11789 | void DR_State::Init() { |
| 11790 | char* env = PR_GetEnv("GECKO_DISPLAY_REFLOW_ASSERT"); |
| 11791 | int32_t num; |
| 11792 | if (env) { |
| 11793 | if (GetNumber(env, num)) |
| 11794 | mAssert = num; |
| 11795 | else |
| 11796 | printf("GECKO_DISPLAY_REFLOW_ASSERT - invalid value = %s", env); |
| 11797 | } |
| 11798 | |
| 11799 | env = PR_GetEnv("GECKO_DISPLAY_REFLOW_INDENT_START"); |
| 11800 | if (env) { |
| 11801 | if (GetNumber(env, num)) |
| 11802 | mIndent = num; |
| 11803 | else |
| 11804 | printf("GECKO_DISPLAY_REFLOW_INDENT_START - invalid value = %s", env); |
| 11805 | } |
| 11806 | |
| 11807 | env = PR_GetEnv("GECKO_DISPLAY_REFLOW_INDENT_UNDISPLAYED_FRAMES"); |
| 11808 | if (env) { |
| 11809 | if (GetNumber(env, num)) |
| 11810 | mIndentUndisplayedFrames = num; |
| 11811 | else |
| 11812 | printf( |
| 11813 | "GECKO_DISPLAY_REFLOW_INDENT_UNDISPLAYED_FRAMES - invalid value = %s", |
| 11814 | env); |
| 11815 | } |
| 11816 | |
| 11817 | env = PR_GetEnv("GECKO_DISPLAY_REFLOW_FLAG_PIXEL_ERRORS"); |
| 11818 | if (env) { |
| 11819 | if (GetNumber(env, num)) |
| 11820 | mDisplayPixelErrors = num; |
| 11821 | else |
| 11822 | printf("GECKO_DISPLAY_REFLOW_FLAG_PIXEL_ERRORS - invalid value = %s", |
| 11823 | env); |
| 11824 | } |
| 11825 | |
| 11826 | InitFrameTypeTable(); |
| 11827 | ParseRulesFile(); |
| 11828 | mInited = true; |
| 11829 | } |
| 11830 | |
| 11831 | DR_State::~DR_State() { |
| 11832 | MOZ_COUNT_DTOR(DR_State)do { static_assert(std::is_class_v<DR_State>, "Token '" "DR_State" "' is not a class type."); static_assert(!std::is_base_of <nsISupports, DR_State>::value, "nsISupports classes don't need to call MOZ_COUNT_CTOR or " "MOZ_COUNT_DTOR");; NS_LogDtor((void*)this, "DR_State", sizeof (*this)); } while (0); |
| 11833 | int32_t numElements, i; |
| 11834 | numElements = mWildRules.Length(); |
| 11835 | for (i = numElements - 1; i >= 0; i--) { |
| 11836 | delete mWildRules.ElementAt(i); |
| 11837 | } |
| 11838 | numElements = mFrameTreeLeaves.Length(); |
| 11839 | for (i = numElements - 1; i >= 0; i--) { |
| 11840 | delete mFrameTreeLeaves.ElementAt(i); |
| 11841 | } |
| 11842 | } |
| 11843 | |
| 11844 | bool DR_State::GetNumber(char* aBuf, int32_t& aNumber) { |
| 11845 | if (sscanf(aBuf, "%d", &aNumber) > 0) |
| 11846 | return true; |
| 11847 | else |
| 11848 | return false; |
| 11849 | } |
| 11850 | |
| 11851 | bool DR_State::IsWhiteSpace(int c) { |
| 11852 | return (c == ' ') || (c == '\t') || (c == '\n') || (c == '\r'); |
| 11853 | } |
| 11854 | |
| 11855 | bool DR_State::GetToken(FILE* aFile, char* aBuf, size_t aBufSize) { |
| 11856 | bool haveToken = false; |
| 11857 | aBuf[0] = 0; |
| 11858 | // get the 1st non whitespace char |
| 11859 | int c = -1; |
| 11860 | for (c = getc(aFile); (c > 0) && IsWhiteSpace(c); c = getc(aFile)) { |
| 11861 | } |
| 11862 | |
| 11863 | if (c > 0) { |
| 11864 | haveToken = true; |
| 11865 | aBuf[0] = c; |
| 11866 | // get everything up to the next whitespace char |
| 11867 | size_t cX; |
| 11868 | for (cX = 1; cX + 1 < aBufSize; cX++) { |
| 11869 | c = getc(aFile); |
| 11870 | if (c < 0) { // EOF |
| 11871 | ungetc(' ', aFile); |
| 11872 | break; |
| 11873 | } else { |
| 11874 | if (IsWhiteSpace(c)) { |
| 11875 | break; |
| 11876 | } else { |
| 11877 | aBuf[cX] = c; |
| 11878 | } |
| 11879 | } |
| 11880 | } |
| 11881 | aBuf[cX] = 0; |
| 11882 | } |
| 11883 | return haveToken; |
| 11884 | } |
| 11885 | |
| 11886 | DR_Rule* DR_State::ParseRule(FILE* aFile) { |
| 11887 | char buf[128]; |
| 11888 | int32_t doDisplay; |
| 11889 | DR_Rule* rule = nullptr; |
| 11890 | while (GetToken(aFile, buf, sizeof(buf))) { |
| 11891 | if (GetNumber(buf, doDisplay)) { |
| 11892 | if (rule) { |
| 11893 | rule->mDisplay = !!doDisplay; |
| 11894 | break; |
| 11895 | } else { |
| 11896 | printf("unexpected token - %s \n", buf); |
| 11897 | } |
| 11898 | } else { |
| 11899 | if (!rule) { |
| 11900 | rule = new DR_Rule; |
| 11901 | } |
| 11902 | if (strcmp(buf, "*") == 0) { |
| 11903 | rule->AddPart(LayoutFrameType::None); |
| 11904 | } else { |
| 11905 | DR_FrameTypeInfo* info = GetFrameTypeInfo(buf); |
| 11906 | if (info) { |
| 11907 | rule->AddPart(info->mType); |
| 11908 | } else { |
| 11909 | printf("invalid frame type - %s \n", buf); |
| 11910 | } |
| 11911 | } |
| 11912 | } |
| 11913 | } |
| 11914 | return rule; |
| 11915 | } |
| 11916 | |
| 11917 | void DR_State::AddRule(nsTArray<DR_Rule*>& aRules, DR_Rule& aRule) { |
| 11918 | int32_t numRules = aRules.Length(); |
| 11919 | for (int32_t ruleX = 0; ruleX < numRules; ruleX++) { |
| 11920 | DR_Rule* rule = aRules.ElementAt(ruleX); |
| 11921 | NS_ASSERTION(rule, "program error")do { if (!(rule)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "program error" , "rule", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11921); MOZ_PretendNoReturn(); } } while (0); |
| 11922 | if (aRule.mLength > rule->mLength) { |
| 11923 | aRules.InsertElementAt(ruleX, &aRule); |
| 11924 | return; |
| 11925 | } |
| 11926 | } |
| 11927 | aRules.AppendElement(&aRule); |
| 11928 | } |
| 11929 | |
| 11930 | static Maybe<bool> ShouldLogReflow(const char* processes) { |
| 11931 | switch (processes[0]) { |
| 11932 | case 'A': |
| 11933 | case 'a': |
| 11934 | return Some(true); |
| 11935 | case 'P': |
| 11936 | case 'p': |
| 11937 | return Some(XRE_IsParentProcess()); |
| 11938 | case 'C': |
| 11939 | case 'c': |
| 11940 | return Some(XRE_IsContentProcess()); |
| 11941 | default: |
| 11942 | return Nothing{}; |
| 11943 | } |
| 11944 | } |
| 11945 | |
| 11946 | void DR_State::ParseRulesFile() { |
| 11947 | char* processes = PR_GetEnv("GECKO_DISPLAY_REFLOW_PROCESSES"); |
| 11948 | if (processes) { |
| 11949 | Maybe<bool> enableLog = ShouldLogReflow(processes); |
| 11950 | if (enableLog.isNothing()) { |
| 11951 | MOZ_CRASH("GECKO_DISPLAY_REFLOW_PROCESSES: [a]ll [p]arent [c]ontent")do { do { } while (false); MOZ_ReportCrash("" "GECKO_DISPLAY_REFLOW_PROCESSES: [a]ll [p]arent [c]ontent" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11951); AnnotateMozCrashReason("MOZ_CRASH(" "GECKO_DISPLAY_REFLOW_PROCESSES: [a]ll [p]arent [c]ontent" ")"); do { *((volatile int*)__null) = 11951; __attribute__(( nomerge)) ::abort(); } while (false); } while (false); |
| 11952 | } else if (enableLog.value()) { |
| 11953 | DR_Rule* rule = new DR_Rule; |
| 11954 | rule->AddPart(LayoutFrameType::None); |
| 11955 | rule->mDisplay = true; |
| 11956 | AddRule(mWildRules, *rule); |
| 11957 | mActive = true; |
| 11958 | } |
| 11959 | return; |
| 11960 | } |
| 11961 | |
| 11962 | char* path = PR_GetEnv("GECKO_DISPLAY_REFLOW_RULES_FILE"); |
| 11963 | if (path) { |
| 11964 | FILE* inFile = fopen(path, "r"); |
| 11965 | if (!inFile) { |
| 11966 | MOZ_CRASH(do { do { } while (false); MOZ_ReportCrash("" "Failed to open the specified rules file; Try `--setpref " "security.sandbox.content.level=2` if the sandbox is at cause" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11968); AnnotateMozCrashReason("MOZ_CRASH(" "Failed to open the specified rules file; Try `--setpref " "security.sandbox.content.level=2` if the sandbox is at cause" ")"); do { *((volatile int*)__null) = 11968; __attribute__(( nomerge)) ::abort(); } while (false); } while (false) |
| 11967 | "Failed to open the specified rules file; Try `--setpref "do { do { } while (false); MOZ_ReportCrash("" "Failed to open the specified rules file; Try `--setpref " "security.sandbox.content.level=2` if the sandbox is at cause" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11968); AnnotateMozCrashReason("MOZ_CRASH(" "Failed to open the specified rules file; Try `--setpref " "security.sandbox.content.level=2` if the sandbox is at cause" ")"); do { *((volatile int*)__null) = 11968; __attribute__(( nomerge)) ::abort(); } while (false); } while (false) |
| 11968 | "security.sandbox.content.level=2` if the sandbox is at cause")do { do { } while (false); MOZ_ReportCrash("" "Failed to open the specified rules file; Try `--setpref " "security.sandbox.content.level=2` if the sandbox is at cause" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11968); AnnotateMozCrashReason("MOZ_CRASH(" "Failed to open the specified rules file; Try `--setpref " "security.sandbox.content.level=2` if the sandbox is at cause" ")"); do { *((volatile int*)__null) = 11968; __attribute__(( nomerge)) ::abort(); } while (false); } while (false); |
| 11969 | } |
| 11970 | for (DR_Rule* rule = ParseRule(inFile); rule; rule = ParseRule(inFile)) { |
| 11971 | if (rule->mTarget) { |
| 11972 | LayoutFrameType fType = rule->mTarget->mFrameType; |
| 11973 | if (fType != LayoutFrameType::None) { |
| 11974 | DR_FrameTypeInfo* info = GetFrameTypeInfo(fType); |
| 11975 | AddRule(info->mRules, *rule); |
| 11976 | } else { |
| 11977 | AddRule(mWildRules, *rule); |
| 11978 | } |
| 11979 | mActive = true; |
| 11980 | } |
| 11981 | } |
| 11982 | |
| 11983 | fclose(inFile); |
| 11984 | } |
| 11985 | } |
| 11986 | |
| 11987 | void DR_State::AddFrameTypeInfo(LayoutFrameType aFrameType, |
| 11988 | const char* aFrameNameAbbrev, |
| 11989 | const char* aFrameName) { |
| 11990 | mFrameTypeTable.EmplaceBack(aFrameType, aFrameNameAbbrev, aFrameName); |
| 11991 | } |
| 11992 | |
| 11993 | DR_FrameTypeInfo* DR_State::GetFrameTypeInfo(LayoutFrameType aFrameType) { |
| 11994 | int32_t numEntries = mFrameTypeTable.Length(); |
| 11995 | NS_ASSERTION(numEntries != 0, "empty FrameTypeTable")do { if (!(numEntries != 0)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "empty FrameTypeTable", "numEntries != 0", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 11995); MOZ_PretendNoReturn(); } } while (0); |
| 11996 | for (int32_t i = 0; i < numEntries; i++) { |
| 11997 | DR_FrameTypeInfo& info = mFrameTypeTable.ElementAt(i); |
| 11998 | if (info.mType == aFrameType) { |
| 11999 | return &info; |
| 12000 | } |
| 12001 | } |
| 12002 | return &mFrameTypeTable.ElementAt(numEntries - |
| 12003 | 1); // return unknown frame type |
| 12004 | } |
| 12005 | |
| 12006 | DR_FrameTypeInfo* DR_State::GetFrameTypeInfo(char* aFrameName) { |
| 12007 | int32_t numEntries = mFrameTypeTable.Length(); |
| 12008 | NS_ASSERTION(numEntries != 0, "empty FrameTypeTable")do { if (!(numEntries != 0)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "empty FrameTypeTable", "numEntries != 0", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12008); MOZ_PretendNoReturn(); } } while (0); |
| 12009 | for (int32_t i = 0; i < numEntries; i++) { |
| 12010 | DR_FrameTypeInfo& info = mFrameTypeTable.ElementAt(i); |
| 12011 | if ((strcmp(aFrameName, info.mName) == 0) || |
| 12012 | (strcmp(aFrameName, info.mNameAbbrev) == 0)) { |
| 12013 | return &info; |
| 12014 | } |
| 12015 | } |
| 12016 | return &mFrameTypeTable.ElementAt(numEntries - |
| 12017 | 1); // return unknown frame type |
| 12018 | } |
| 12019 | |
| 12020 | void DR_State::InitFrameTypeTable() { |
| 12021 | AddFrameTypeInfo(LayoutFrameType::Block, "block", "block"); |
| 12022 | AddFrameTypeInfo(LayoutFrameType::Br, "br", "br"); |
| 12023 | AddFrameTypeInfo(LayoutFrameType::ColorControl, "color", "colorControl"); |
| 12024 | AddFrameTypeInfo(LayoutFrameType::GfxButtonControl, "button", |
| 12025 | "gfxButtonControl"); |
| 12026 | AddFrameTypeInfo(LayoutFrameType::HTMLButtonControl, "HTMLbutton", |
| 12027 | "HTMLButtonControl"); |
| 12028 | AddFrameTypeInfo(LayoutFrameType::HTMLCanvas, "HTMLCanvas", "HTMLCanvas"); |
| 12029 | AddFrameTypeInfo(LayoutFrameType::SubDocument, "subdoc", "subDocument"); |
| 12030 | AddFrameTypeInfo(LayoutFrameType::Image, "img", "image"); |
| 12031 | AddFrameTypeInfo(LayoutFrameType::Inline, "inline", "inline"); |
| 12032 | AddFrameTypeInfo(LayoutFrameType::Letter, "letter", "letter"); |
| 12033 | AddFrameTypeInfo(LayoutFrameType::Line, "line", "line"); |
| 12034 | AddFrameTypeInfo(LayoutFrameType::ListControl, "select", "select"); |
| 12035 | AddFrameTypeInfo(LayoutFrameType::Page, "page", "page"); |
| 12036 | AddFrameTypeInfo(LayoutFrameType::Placeholder, "place", "placeholder"); |
| 12037 | AddFrameTypeInfo(LayoutFrameType::Canvas, "canvas", "canvas"); |
| 12038 | AddFrameTypeInfo(LayoutFrameType::Scroll, "scroll", "scroll"); |
| 12039 | AddFrameTypeInfo(LayoutFrameType::TableCell, "cell", "tableCell"); |
| 12040 | AddFrameTypeInfo(LayoutFrameType::TableCol, "col", "tableCol"); |
| 12041 | AddFrameTypeInfo(LayoutFrameType::TableColGroup, "colG", "tableColGroup"); |
| 12042 | AddFrameTypeInfo(LayoutFrameType::Table, "tbl", "table"); |
| 12043 | AddFrameTypeInfo(LayoutFrameType::TableWrapper, "tblW", "tableWrapper"); |
| 12044 | AddFrameTypeInfo(LayoutFrameType::TableRowGroup, "rowG", "tableRowGroup"); |
| 12045 | AddFrameTypeInfo(LayoutFrameType::TableRow, "row", "tableRow"); |
| 12046 | AddFrameTypeInfo(LayoutFrameType::TextInput, "textCtl", "textInput"); |
| 12047 | AddFrameTypeInfo(LayoutFrameType::Text, "text", "text"); |
| 12048 | AddFrameTypeInfo(LayoutFrameType::Viewport, "VP", "viewport"); |
| 12049 | AddFrameTypeInfo(LayoutFrameType::Slider, "Slider", "Slider"); |
| 12050 | AddFrameTypeInfo(LayoutFrameType::None, "unknown", "unknown"); |
| 12051 | } |
| 12052 | |
| 12053 | void DR_State::DisplayFrameTypeInfo(nsIFrame* aFrame, int32_t aIndent) { |
| 12054 | DR_FrameTypeInfo* frameTypeInfo = GetFrameTypeInfo(aFrame->Type()); |
| 12055 | if (frameTypeInfo) { |
| 12056 | for (int32_t i = 0; i < aIndent; i++) { |
| 12057 | printf(" "); |
| 12058 | } |
| 12059 | if (!strcmp(frameTypeInfo->mNameAbbrev, "unknown")) { |
| 12060 | if (aFrame) { |
| 12061 | nsAutoString name; |
| 12062 | aFrame->GetFrameName(name); |
| 12063 | printf("%s %p ", NS_LossyConvertUTF16toASCII(name).get(), |
| 12064 | (void*)aFrame); |
| 12065 | } else { |
| 12066 | printf("%s %p ", frameTypeInfo->mNameAbbrev, (void*)aFrame); |
| 12067 | } |
| 12068 | } else { |
| 12069 | printf("%s %p ", frameTypeInfo->mNameAbbrev, (void*)aFrame); |
| 12070 | } |
| 12071 | } |
| 12072 | } |
| 12073 | |
| 12074 | bool DR_State::RuleMatches(DR_Rule& aRule, DR_FrameTreeNode& aNode) { |
| 12075 | NS_ASSERTION(aRule.mTarget, "program error")do { if (!(aRule.mTarget)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "program error", "aRule.mTarget", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12075); MOZ_PretendNoReturn(); } } while (0); |
| 12076 | |
| 12077 | DR_RulePart* rulePart; |
| 12078 | DR_FrameTreeNode* parentNode; |
| 12079 | for (rulePart = aRule.mTarget->mNext, parentNode = aNode.mParent; |
| 12080 | rulePart && parentNode; |
| 12081 | rulePart = rulePart->mNext, parentNode = parentNode->mParent) { |
| 12082 | if (rulePart->mFrameType != LayoutFrameType::None) { |
| 12083 | if (parentNode->mFrame) { |
| 12084 | if (rulePart->mFrameType != parentNode->mFrame->Type()) { |
| 12085 | return false; |
| 12086 | } |
| 12087 | } else |
| 12088 | NS_ASSERTION(false, "program error")do { if (!(false)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "program error" , "false", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12088); MOZ_PretendNoReturn(); } } while (0); |
| 12089 | } |
| 12090 | // else wild card match |
| 12091 | } |
| 12092 | return true; |
| 12093 | } |
| 12094 | |
| 12095 | void DR_State::FindMatchingRule(DR_FrameTreeNode& aNode) { |
| 12096 | if (!aNode.mFrame) { |
| 12097 | NS_ASSERTION(false, "invalid DR_FrameTreeNode \n")do { if (!(false)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "invalid DR_FrameTreeNode \n" , "false", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12097); MOZ_PretendNoReturn(); } } while (0); |
| 12098 | return; |
| 12099 | } |
| 12100 | |
| 12101 | bool matchingRule = false; |
| 12102 | |
| 12103 | DR_FrameTypeInfo* info = GetFrameTypeInfo(aNode.mFrame->Type()); |
| 12104 | NS_ASSERTION(info, "program error")do { if (!(info)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "program error" , "info", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12104); MOZ_PretendNoReturn(); } } while (0); |
| 12105 | int32_t numRules = info->mRules.Length(); |
| 12106 | for (int32_t ruleX = 0; ruleX < numRules; ruleX++) { |
| 12107 | DR_Rule* rule = info->mRules.ElementAt(ruleX); |
| 12108 | if (rule && RuleMatches(*rule, aNode)) { |
| 12109 | aNode.mDisplay = rule->mDisplay; |
| 12110 | matchingRule = true; |
| 12111 | break; |
| 12112 | } |
| 12113 | } |
| 12114 | if (!matchingRule) { |
| 12115 | int32_t numWildRules = mWildRules.Length(); |
| 12116 | for (int32_t ruleX = 0; ruleX < numWildRules; ruleX++) { |
| 12117 | DR_Rule* rule = mWildRules.ElementAt(ruleX); |
| 12118 | if (rule && RuleMatches(*rule, aNode)) { |
| 12119 | aNode.mDisplay = rule->mDisplay; |
| 12120 | break; |
| 12121 | } |
| 12122 | } |
| 12123 | } |
| 12124 | } |
| 12125 | |
| 12126 | DR_FrameTreeNode* DR_State::CreateTreeNode(nsIFrame* aFrame, |
| 12127 | const ReflowInput* aReflowInput) { |
| 12128 | // find the frame of the parent reflow input (usually just the parent of |
| 12129 | // aFrame) |
| 12130 | nsIFrame* parentFrame; |
| 12131 | if (aReflowInput) { |
| 12132 | const ReflowInput* parentRI = aReflowInput->mParentReflowInput; |
| 12133 | parentFrame = (parentRI) ? parentRI->mFrame : nullptr; |
| 12134 | } else { |
| 12135 | parentFrame = aFrame->GetParent(); |
| 12136 | } |
| 12137 | |
| 12138 | // find the parent tree node leaf |
| 12139 | DR_FrameTreeNode* parentNode = nullptr; |
| 12140 | |
| 12141 | DR_FrameTreeNode* lastLeaf = nullptr; |
| 12142 | if (mFrameTreeLeaves.Length()) |
| 12143 | lastLeaf = mFrameTreeLeaves.ElementAt(mFrameTreeLeaves.Length() - 1); |
| 12144 | if (lastLeaf) { |
| 12145 | for (parentNode = lastLeaf; |
| 12146 | parentNode && (parentNode->mFrame != parentFrame); |
| 12147 | parentNode = parentNode->mParent) { |
| 12148 | } |
| 12149 | } |
| 12150 | DR_FrameTreeNode* newNode = new DR_FrameTreeNode(aFrame, parentNode); |
| 12151 | FindMatchingRule(*newNode); |
| 12152 | |
| 12153 | newNode->mIndent = mIndent; |
| 12154 | if (newNode->mDisplay || mIndentUndisplayedFrames) { |
| 12155 | ++mIndent; |
| 12156 | } |
| 12157 | |
| 12158 | if (lastLeaf && (lastLeaf == parentNode)) { |
| 12159 | mFrameTreeLeaves.RemoveLastElement(); |
| 12160 | } |
| 12161 | mFrameTreeLeaves.AppendElement(newNode); |
| 12162 | mCount++; |
| 12163 | |
| 12164 | return newNode; |
| 12165 | } |
| 12166 | |
| 12167 | void DR_State::PrettyUC(nscoord aSize, char* aBuf, int aBufSize) { |
| 12168 | if (NS_UNCONSTRAINEDSIZEnscoord((1 << 30) - 1) == aSize) { |
| 12169 | strcpy(aBuf, "UC"); |
| 12170 | } else { |
| 12171 | if ((nscoord)0xdeadbeefU == aSize) { |
| 12172 | strcpy(aBuf, "deadbeef"); |
| 12173 | } else { |
| 12174 | snprintf(aBuf, aBufSize, "%d", aSize); |
| 12175 | } |
| 12176 | } |
| 12177 | } |
| 12178 | |
| 12179 | void DR_State::PrintMargin(const char* tag, const nsMargin* aMargin) { |
| 12180 | if (aMargin) { |
| 12181 | char t[16], r[16], b[16], l[16]; |
| 12182 | PrettyUC(aMargin->top, t, 16); |
| 12183 | PrettyUC(aMargin->right, r, 16); |
| 12184 | PrettyUC(aMargin->bottom, b, 16); |
| 12185 | PrettyUC(aMargin->left, l, 16); |
| 12186 | printf(" %s=%s,%s,%s,%s", tag, t, r, b, l); |
| 12187 | } else { |
| 12188 | // use %p here for consistency with other null-pointer printouts |
| 12189 | printf(" %s=%p", tag, (void*)aMargin); |
| 12190 | } |
| 12191 | } |
| 12192 | |
| 12193 | void DR_State::DeleteTreeNode(DR_FrameTreeNode& aNode) { |
| 12194 | mFrameTreeLeaves.RemoveElement(&aNode); |
| 12195 | int32_t numLeaves = mFrameTreeLeaves.Length(); |
| 12196 | if ((0 == numLeaves) || |
| 12197 | (aNode.mParent != mFrameTreeLeaves.ElementAt(numLeaves - 1))) { |
| 12198 | mFrameTreeLeaves.AppendElement(aNode.mParent); |
| 12199 | } |
| 12200 | |
| 12201 | if (aNode.mDisplay || mIndentUndisplayedFrames) { |
| 12202 | --mIndent; |
| 12203 | } |
| 12204 | // delete the tree node |
| 12205 | delete &aNode; |
| 12206 | } |
| 12207 | |
| 12208 | static void CheckPixelError(nscoord aSize, int32_t aPixelToTwips) { |
| 12209 | if (NS_UNCONSTRAINEDSIZEnscoord((1 << 30) - 1) != aSize) { |
| 12210 | if ((aSize % aPixelToTwips) > 0) { |
| 12211 | printf("VALUE %d is not a whole pixel \n", aSize); |
| 12212 | } |
| 12213 | } |
| 12214 | } |
| 12215 | |
| 12216 | static void DisplayReflowEnterPrint(nsPresContext* aPresContext, |
| 12217 | nsIFrame* aFrame, |
| 12218 | const ReflowInput& aReflowInput, |
| 12219 | DR_FrameTreeNode& aTreeNode, |
| 12220 | bool aChanged) { |
| 12221 | if (aTreeNode.mDisplay) { |
| 12222 | DR_state->DisplayFrameTypeInfo(aFrame, aTreeNode.mIndent); |
| 12223 | |
| 12224 | char width[16]; |
| 12225 | char height[16]; |
| 12226 | |
| 12227 | DR_state->PrettyUC(aReflowInput.AvailableWidth(), width, 16); |
| 12228 | DR_state->PrettyUC(aReflowInput.AvailableHeight(), height, 16); |
| 12229 | printf("Reflow a=%s,%s ", width, height); |
| 12230 | |
| 12231 | DR_state->PrettyUC(aReflowInput.ComputedWidth(), width, 16); |
| 12232 | DR_state->PrettyUC(aReflowInput.ComputedHeight(), height, 16); |
| 12233 | printf("c=%s,%s ", width, height); |
| 12234 | |
| 12235 | if (aFrame->HasAnyStateBits(NS_FRAME_IS_DIRTY)) printf("dirty "); |
| 12236 | |
| 12237 | if (aFrame->HasAnyStateBits(NS_FRAME_HAS_DIRTY_CHILDREN)) |
| 12238 | printf("dirty-children "); |
| 12239 | |
| 12240 | if (aReflowInput.mFlags.mSpecialBSizeReflow) printf("special-bsize "); |
| 12241 | |
| 12242 | if (aReflowInput.IsHResize()) printf("h-resize "); |
| 12243 | |
| 12244 | if (aReflowInput.IsVResize()) printf("v-resize "); |
| 12245 | |
| 12246 | nsIFrame* inFlow = aFrame->GetPrevInFlow(); |
| 12247 | if (inFlow) { |
| 12248 | printf("pif=%p ", (void*)inFlow); |
| 12249 | } |
| 12250 | inFlow = aFrame->GetNextInFlow(); |
| 12251 | if (inFlow) { |
| 12252 | printf("nif=%p ", (void*)inFlow); |
| 12253 | } |
| 12254 | if (aChanged) |
| 12255 | printf("CHANGED \n"); |
| 12256 | else |
| 12257 | printf("cnt=%d \n", DR_state->mCount); |
| 12258 | if (DR_state->mDisplayPixelErrors) { |
| 12259 | int32_t d2a = aPresContext->AppUnitsPerDevPixel(); |
| 12260 | CheckPixelError(aReflowInput.AvailableWidth(), d2a); |
| 12261 | CheckPixelError(aReflowInput.AvailableHeight(), d2a); |
| 12262 | CheckPixelError(aReflowInput.ComputedWidth(), d2a); |
| 12263 | CheckPixelError(aReflowInput.ComputedHeight(), d2a); |
| 12264 | } |
| 12265 | } |
| 12266 | } |
| 12267 | |
| 12268 | void* nsIFrame::DisplayReflowEnter(nsPresContext* aPresContext, |
| 12269 | nsIFrame* aFrame, |
| 12270 | const ReflowInput& aReflowInput) { |
| 12271 | if (!DR_state->mInited) DR_state->Init(); |
| 12272 | if (!DR_state->mActive) return nullptr; |
| 12273 | |
| 12274 | NS_ASSERTION(aFrame, "invalid call")do { if (!(aFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "invalid call" , "aFrame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12274); MOZ_PretendNoReturn(); } } while (0); |
| 12275 | |
| 12276 | DR_FrameTreeNode* treeNode = DR_state->CreateTreeNode(aFrame, &aReflowInput); |
| 12277 | if (treeNode) { |
| 12278 | DisplayReflowEnterPrint(aPresContext, aFrame, aReflowInput, *treeNode, |
| 12279 | false); |
| 12280 | } |
| 12281 | return treeNode; |
| 12282 | } |
| 12283 | |
| 12284 | void* nsIFrame::DisplayLayoutEnter(nsIFrame* aFrame) { |
| 12285 | if (!DR_state->mInited) DR_state->Init(); |
| 12286 | if (!DR_state->mActive) return nullptr; |
| 12287 | |
| 12288 | NS_ASSERTION(aFrame, "invalid call")do { if (!(aFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "invalid call" , "aFrame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12288); MOZ_PretendNoReturn(); } } while (0); |
| 12289 | |
| 12290 | DR_FrameTreeNode* treeNode = DR_state->CreateTreeNode(aFrame, nullptr); |
| 12291 | if (treeNode && treeNode->mDisplay) { |
| 12292 | DR_state->DisplayFrameTypeInfo(aFrame, treeNode->mIndent); |
| 12293 | printf("XULLayout\n"); |
| 12294 | } |
| 12295 | return treeNode; |
| 12296 | } |
| 12297 | |
| 12298 | void* nsIFrame::DisplayIntrinsicISizeEnter(nsIFrame* aFrame, |
| 12299 | const char* aType) { |
| 12300 | if (!DR_state->mInited) DR_state->Init(); |
| 12301 | if (!DR_state->mActive) return nullptr; |
| 12302 | |
| 12303 | NS_ASSERTION(aFrame, "invalid call")do { if (!(aFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "invalid call" , "aFrame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12303); MOZ_PretendNoReturn(); } } while (0); |
| 12304 | |
| 12305 | DR_FrameTreeNode* treeNode = DR_state->CreateTreeNode(aFrame, nullptr); |
| 12306 | if (treeNode && treeNode->mDisplay) { |
| 12307 | DR_state->DisplayFrameTypeInfo(aFrame, treeNode->mIndent); |
| 12308 | printf("Get%sISize\n", aType); |
| 12309 | } |
| 12310 | return treeNode; |
| 12311 | } |
| 12312 | |
| 12313 | void* nsIFrame::DisplayIntrinsicSizeEnter(nsIFrame* aFrame, const char* aType) { |
| 12314 | if (!DR_state->mInited) DR_state->Init(); |
| 12315 | if (!DR_state->mActive) return nullptr; |
| 12316 | |
| 12317 | NS_ASSERTION(aFrame, "invalid call")do { if (!(aFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "invalid call" , "aFrame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12317); MOZ_PretendNoReturn(); } } while (0); |
| 12318 | |
| 12319 | DR_FrameTreeNode* treeNode = DR_state->CreateTreeNode(aFrame, nullptr); |
| 12320 | if (treeNode && treeNode->mDisplay) { |
| 12321 | DR_state->DisplayFrameTypeInfo(aFrame, treeNode->mIndent); |
| 12322 | printf("Get%sSize\n", aType); |
| 12323 | } |
| 12324 | return treeNode; |
| 12325 | } |
| 12326 | |
| 12327 | void nsIFrame::DisplayReflowExit(nsPresContext* aPresContext, nsIFrame* aFrame, |
| 12328 | ReflowOutput& aMetrics, |
| 12329 | const nsReflowStatus& aStatus, |
| 12330 | void* aFrameTreeNode) { |
| 12331 | if (!DR_state->mActive) return; |
| 12332 | |
| 12333 | NS_ASSERTION(aFrame, "DisplayReflowExit - invalid call")do { if (!(aFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "DisplayReflowExit - invalid call" , "aFrame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12333); MOZ_PretendNoReturn(); } } while (0); |
| 12334 | if (!aFrameTreeNode) return; |
| 12335 | |
| 12336 | DR_FrameTreeNode* treeNode = (DR_FrameTreeNode*)aFrameTreeNode; |
| 12337 | if (treeNode->mDisplay) { |
| 12338 | DR_state->DisplayFrameTypeInfo(aFrame, treeNode->mIndent); |
| 12339 | |
| 12340 | char width[16]; |
| 12341 | char height[16]; |
| 12342 | char x[16]; |
| 12343 | char y[16]; |
| 12344 | DR_state->PrettyUC(aMetrics.Width(), width, 16); |
| 12345 | DR_state->PrettyUC(aMetrics.Height(), height, 16); |
| 12346 | printf("Reflow d=%s,%s", width, height); |
| 12347 | |
| 12348 | if (!aStatus.IsEmpty()) { |
| 12349 | printf(" status=%s", ToString(aStatus).c_str()); |
| 12350 | } |
| 12351 | if (aFrame->HasOverflowAreas()) { |
| 12352 | DR_state->PrettyUC(aMetrics.InkOverflow().x, x, 16); |
| 12353 | DR_state->PrettyUC(aMetrics.InkOverflow().y, y, 16); |
| 12354 | DR_state->PrettyUC(aMetrics.InkOverflow().width, width, 16); |
| 12355 | DR_state->PrettyUC(aMetrics.InkOverflow().height, height, 16); |
| 12356 | printf(" vis-o=(%s,%s) %s x %s", x, y, width, height); |
| 12357 | |
| 12358 | nsRect storedOverflow = aFrame->InkOverflowRect(); |
| 12359 | DR_state->PrettyUC(storedOverflow.x, x, 16); |
| 12360 | DR_state->PrettyUC(storedOverflow.y, y, 16); |
| 12361 | DR_state->PrettyUC(storedOverflow.width, width, 16); |
| 12362 | DR_state->PrettyUC(storedOverflow.height, height, 16); |
| 12363 | printf(" vis-sto=(%s,%s) %s x %s", x, y, width, height); |
| 12364 | |
| 12365 | DR_state->PrettyUC(aMetrics.ScrollableOverflow().x, x, 16); |
| 12366 | DR_state->PrettyUC(aMetrics.ScrollableOverflow().y, y, 16); |
| 12367 | DR_state->PrettyUC(aMetrics.ScrollableOverflow().width, width, 16); |
| 12368 | DR_state->PrettyUC(aMetrics.ScrollableOverflow().height, height, 16); |
| 12369 | printf(" scr-o=(%s,%s) %s x %s", x, y, width, height); |
| 12370 | |
| 12371 | storedOverflow = aFrame->ScrollableOverflowRect(); |
| 12372 | DR_state->PrettyUC(storedOverflow.x, x, 16); |
| 12373 | DR_state->PrettyUC(storedOverflow.y, y, 16); |
| 12374 | DR_state->PrettyUC(storedOverflow.width, width, 16); |
| 12375 | DR_state->PrettyUC(storedOverflow.height, height, 16); |
| 12376 | printf(" scr-sto=(%s,%s) %s x %s", x, y, width, height); |
| 12377 | } |
| 12378 | printf("\n"); |
| 12379 | if (DR_state->mDisplayPixelErrors) { |
| 12380 | int32_t d2a = aPresContext->AppUnitsPerDevPixel(); |
| 12381 | CheckPixelError(aMetrics.Width(), d2a); |
| 12382 | CheckPixelError(aMetrics.Height(), d2a); |
| 12383 | } |
| 12384 | } |
| 12385 | DR_state->DeleteTreeNode(*treeNode); |
| 12386 | } |
| 12387 | |
| 12388 | void nsIFrame::DisplayLayoutExit(nsIFrame* aFrame, void* aFrameTreeNode) { |
| 12389 | if (!DR_state->mActive) return; |
| 12390 | |
| 12391 | NS_ASSERTION(aFrame, "non-null frame required")do { if (!(aFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "non-null frame required" , "aFrame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12391); MOZ_PretendNoReturn(); } } while (0); |
| 12392 | if (!aFrameTreeNode) return; |
| 12393 | |
| 12394 | DR_FrameTreeNode* treeNode = (DR_FrameTreeNode*)aFrameTreeNode; |
| 12395 | if (treeNode->mDisplay) { |
| 12396 | DR_state->DisplayFrameTypeInfo(aFrame, treeNode->mIndent); |
| 12397 | nsRect rect = aFrame->GetRect(); |
| 12398 | printf("XULLayout=%d,%d,%d,%d\n", rect.x, rect.y, rect.width, rect.height); |
| 12399 | } |
| 12400 | DR_state->DeleteTreeNode(*treeNode); |
| 12401 | } |
| 12402 | |
| 12403 | void nsIFrame::DisplayIntrinsicISizeExit(nsIFrame* aFrame, const char* aType, |
| 12404 | nscoord aResult, |
| 12405 | void* aFrameTreeNode) { |
| 12406 | if (!DR_state->mActive) return; |
| 12407 | |
| 12408 | NS_ASSERTION(aFrame, "non-null frame required")do { if (!(aFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "non-null frame required" , "aFrame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12408); MOZ_PretendNoReturn(); } } while (0); |
| 12409 | if (!aFrameTreeNode) return; |
| 12410 | |
| 12411 | DR_FrameTreeNode* treeNode = (DR_FrameTreeNode*)aFrameTreeNode; |
| 12412 | if (treeNode->mDisplay) { |
| 12413 | DR_state->DisplayFrameTypeInfo(aFrame, treeNode->mIndent); |
| 12414 | char iSize[16]; |
| 12415 | DR_state->PrettyUC(aResult, iSize, 16); |
| 12416 | printf("Get%sISize=%s\n", aType, iSize); |
| 12417 | } |
| 12418 | DR_state->DeleteTreeNode(*treeNode); |
| 12419 | } |
| 12420 | |
| 12421 | void nsIFrame::DisplayIntrinsicSizeExit(nsIFrame* aFrame, const char* aType, |
| 12422 | nsSize aResult, void* aFrameTreeNode) { |
| 12423 | if (!DR_state->mActive) return; |
| 12424 | |
| 12425 | NS_ASSERTION(aFrame, "non-null frame required")do { if (!(aFrame)) { NS_DebugBreak(NS_DEBUG_ASSERTION, "non-null frame required" , "aFrame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12425); MOZ_PretendNoReturn(); } } while (0); |
| 12426 | if (!aFrameTreeNode) return; |
| 12427 | |
| 12428 | DR_FrameTreeNode* treeNode = (DR_FrameTreeNode*)aFrameTreeNode; |
| 12429 | if (treeNode->mDisplay) { |
| 12430 | DR_state->DisplayFrameTypeInfo(aFrame, treeNode->mIndent); |
| 12431 | |
| 12432 | char width[16]; |
| 12433 | char height[16]; |
| 12434 | DR_state->PrettyUC(aResult.width, width, 16); |
| 12435 | DR_state->PrettyUC(aResult.height, height, 16); |
| 12436 | printf("Get%sSize=%s,%s\n", aType, width, height); |
| 12437 | } |
| 12438 | DR_state->DeleteTreeNode(*treeNode); |
| 12439 | } |
| 12440 | |
| 12441 | /* static */ |
| 12442 | void nsIFrame::DisplayReflowStartup() { DR_state = new DR_State(); } |
| 12443 | |
| 12444 | /* static */ |
| 12445 | void nsIFrame::DisplayReflowShutdown() { |
| 12446 | delete DR_state; |
| 12447 | DR_state = nullptr; |
| 12448 | } |
| 12449 | |
| 12450 | void DR_cookie::Change() const { |
| 12451 | DR_FrameTreeNode* treeNode = (DR_FrameTreeNode*)mValue; |
| 12452 | if (treeNode && treeNode->mDisplay) { |
| 12453 | DisplayReflowEnterPrint(mPresContext, mFrame, mReflowInput, *treeNode, |
| 12454 | true); |
| 12455 | } |
| 12456 | } |
| 12457 | |
| 12458 | /* static */ |
| 12459 | void* ReflowInput::DisplayInitConstraintsEnter(nsIFrame* aFrame, |
| 12460 | ReflowInput* aState, |
| 12461 | nscoord aContainingBlockWidth, |
| 12462 | nscoord aContainingBlockHeight, |
| 12463 | const nsMargin* aBorder, |
| 12464 | const nsMargin* aPadding) { |
| 12465 | MOZ_ASSERT(aFrame, "non-null frame required")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame" " (" "non-null frame required" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12465); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ") (" "non-null frame required" ")"); do { *((volatile int*)__null ) = 12465; __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 12466 | MOZ_ASSERT(aState, "non-null state required")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aState)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aState))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aState" " (" "non-null state required" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12466); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aState" ") (" "non-null state required" ")"); do { *((volatile int*)__null ) = 12466; __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 12467 | |
| 12468 | if (!DR_state->mInited) DR_state->Init(); |
| 12469 | if (!DR_state->mActive) return nullptr; |
| 12470 | |
| 12471 | DR_FrameTreeNode* treeNode = DR_state->CreateTreeNode(aFrame, aState); |
| 12472 | if (treeNode && treeNode->mDisplay) { |
| 12473 | DR_state->DisplayFrameTypeInfo(aFrame, treeNode->mIndent); |
| 12474 | |
| 12475 | printf("InitConstraints parent=%p", (void*)aState->mParentReflowInput); |
| 12476 | |
| 12477 | char width[16]; |
| 12478 | char height[16]; |
| 12479 | |
| 12480 | DR_state->PrettyUC(aContainingBlockWidth, width, 16); |
| 12481 | DR_state->PrettyUC(aContainingBlockHeight, height, 16); |
| 12482 | printf(" cb=%s,%s", width, height); |
| 12483 | |
| 12484 | DR_state->PrettyUC(aState->AvailableWidth(), width, 16); |
| 12485 | DR_state->PrettyUC(aState->AvailableHeight(), height, 16); |
| 12486 | printf(" as=%s,%s", width, height); |
| 12487 | |
| 12488 | DR_state->PrintMargin("b", aBorder); |
| 12489 | DR_state->PrintMargin("p", aPadding); |
| 12490 | putchar('\n'); |
| 12491 | } |
| 12492 | return treeNode; |
| 12493 | } |
| 12494 | |
| 12495 | /* static */ |
| 12496 | void ReflowInput::DisplayInitConstraintsExit(nsIFrame* aFrame, |
| 12497 | ReflowInput* aState, |
| 12498 | void* aValue) { |
| 12499 | MOZ_ASSERT(aFrame, "non-null frame required")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame" " (" "non-null frame required" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12499); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ") (" "non-null frame required" ")"); do { *((volatile int*)__null ) = 12499; __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 12500 | MOZ_ASSERT(aState, "non-null state required")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aState)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aState))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aState" " (" "non-null state required" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12500); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aState" ") (" "non-null state required" ")"); do { *((volatile int*)__null ) = 12500; __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 12501 | |
| 12502 | if (!DR_state->mActive) return; |
| 12503 | if (!aValue) return; |
| 12504 | |
| 12505 | DR_FrameTreeNode* treeNode = (DR_FrameTreeNode*)aValue; |
| 12506 | if (treeNode->mDisplay) { |
| 12507 | DR_state->DisplayFrameTypeInfo(aFrame, treeNode->mIndent); |
| 12508 | char cmiw[16], cw[16], cmxw[16], cmih[16], ch[16], cmxh[16]; |
| 12509 | DR_state->PrettyUC(aState->ComputedMinWidth(), cmiw, 16); |
| 12510 | DR_state->PrettyUC(aState->ComputedWidth(), cw, 16); |
| 12511 | DR_state->PrettyUC(aState->ComputedMaxWidth(), cmxw, 16); |
| 12512 | DR_state->PrettyUC(aState->ComputedMinHeight(), cmih, 16); |
| 12513 | DR_state->PrettyUC(aState->ComputedHeight(), ch, 16); |
| 12514 | DR_state->PrettyUC(aState->ComputedMaxHeight(), cmxh, 16); |
| 12515 | printf("InitConstraints= cw=(%s <= %s <= %s) ch=(%s <= %s <= %s)", cmiw, cw, |
| 12516 | cmxw, cmih, ch, cmxh); |
| 12517 | const nsMargin m = aState->ComputedPhysicalOffsets(); |
| 12518 | DR_state->PrintMargin("co", &m); |
| 12519 | putchar('\n'); |
| 12520 | } |
| 12521 | DR_state->DeleteTreeNode(*treeNode); |
| 12522 | } |
| 12523 | |
| 12524 | /* static */ |
| 12525 | void* SizeComputationInput::DisplayInitOffsetsEnter( |
| 12526 | nsIFrame* aFrame, SizeComputationInput* aState, nscoord aPercentBasis, |
| 12527 | WritingMode aCBWritingMode, const nsMargin* aBorder, |
| 12528 | const nsMargin* aPadding) { |
| 12529 | MOZ_ASSERT(aFrame, "non-null frame required")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame" " (" "non-null frame required" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12529); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ") (" "non-null frame required" ")"); do { *((volatile int*)__null ) = 12529; __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 12530 | MOZ_ASSERT(aState, "non-null state required")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aState)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aState))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aState" " (" "non-null state required" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12530); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aState" ") (" "non-null state required" ")"); do { *((volatile int*)__null ) = 12530; __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 12531 | |
| 12532 | if (!DR_state->mInited) DR_state->Init(); |
| 12533 | if (!DR_state->mActive) return nullptr; |
| 12534 | |
| 12535 | // aState is not necessarily a ReflowInput |
| 12536 | DR_FrameTreeNode* treeNode = DR_state->CreateTreeNode(aFrame, nullptr); |
| 12537 | if (treeNode && treeNode->mDisplay) { |
| 12538 | DR_state->DisplayFrameTypeInfo(aFrame, treeNode->mIndent); |
| 12539 | |
| 12540 | char pctBasisStr[16]; |
| 12541 | DR_state->PrettyUC(aPercentBasis, pctBasisStr, 16); |
| 12542 | printf("InitOffsets pct_basis=%s", pctBasisStr); |
| 12543 | |
| 12544 | DR_state->PrintMargin("b", aBorder); |
| 12545 | DR_state->PrintMargin("p", aPadding); |
| 12546 | putchar('\n'); |
| 12547 | } |
| 12548 | return treeNode; |
| 12549 | } |
| 12550 | |
| 12551 | /* static */ |
| 12552 | void SizeComputationInput::DisplayInitOffsetsExit(nsIFrame* aFrame, |
| 12553 | SizeComputationInput* aState, |
| 12554 | void* aValue) { |
| 12555 | MOZ_ASSERT(aFrame, "non-null frame required")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame" " (" "non-null frame required" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12555); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ") (" "non-null frame required" ")"); do { *((volatile int*)__null ) = 12555; __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 12556 | MOZ_ASSERT(aState, "non-null state required")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aState)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aState))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aState" " (" "non-null state required" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsIFrame.cpp" , 12556); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aState" ") (" "non-null state required" ")"); do { *((volatile int*)__null ) = 12556; __attribute__((nomerge)) ::abort(); } while (false ); } } while (false); |
| 12557 | |
| 12558 | if (!DR_state->mActive) return; |
| 12559 | if (!aValue) return; |
| 12560 | |
| 12561 | DR_FrameTreeNode* treeNode = (DR_FrameTreeNode*)aValue; |
| 12562 | if (treeNode->mDisplay) { |
| 12563 | DR_state->DisplayFrameTypeInfo(aFrame, treeNode->mIndent); |
| 12564 | printf("InitOffsets="); |
| 12565 | const auto m = aState->ComputedPhysicalMargin(); |
| 12566 | DR_state->PrintMargin("m", &m); |
| 12567 | const auto p = aState->ComputedPhysicalPadding(); |
| 12568 | DR_state->PrintMargin("p", &p); |
| 12569 | const auto bp = aState->ComputedPhysicalBorderPadding(); |
| 12570 | DR_state->PrintMargin("b+p", &bp); |
| 12571 | putchar('\n'); |
| 12572 | } |
| 12573 | DR_state->DeleteTreeNode(*treeNode); |
| 12574 | } |
| 12575 | |
| 12576 | // End Display Reflow |
| 12577 | |
| 12578 | // Validation of SideIsVertical. |
| 12579 | # define CASE(side, result) \ |
| 12580 | static_assert(SideIsVertical(side) == result, "SideIsVertical is wrong") |
| 12581 | CASE(eSideTop, false); |
| 12582 | CASE(eSideRight, true); |
| 12583 | CASE(eSideBottom, false); |
| 12584 | CASE(eSideLeft, true); |
| 12585 | # undef CASE |
| 12586 | |
| 12587 | // Validation of HalfCornerIsX. |
| 12588 | # define CASE(corner, result) \ |
| 12589 | static_assert(HalfCornerIsX(corner) == result, "HalfCornerIsX is wrong") |
| 12590 | CASE(eCornerTopLeftX, true); |
| 12591 | CASE(eCornerTopLeftY, false); |
| 12592 | CASE(eCornerTopRightX, true); |
| 12593 | CASE(eCornerTopRightY, false); |
| 12594 | CASE(eCornerBottomRightX, true); |
| 12595 | CASE(eCornerBottomRightY, false); |
| 12596 | CASE(eCornerBottomLeftX, true); |
| 12597 | CASE(eCornerBottomLeftY, false); |
| 12598 | # undef CASE |
| 12599 | |
| 12600 | // Validation of HalfToFullCorner. |
| 12601 | # define CASE(corner, result) \ |
| 12602 | static_assert(HalfToFullCorner(corner) == result, \ |
| 12603 | "HalfToFullCorner is " \ |
| 12604 | "wrong") |
| 12605 | CASE(eCornerTopLeftX, eCornerTopLeft); |
| 12606 | CASE(eCornerTopLeftY, eCornerTopLeft); |
| 12607 | CASE(eCornerTopRightX, eCornerTopRight); |
| 12608 | CASE(eCornerTopRightY, eCornerTopRight); |
| 12609 | CASE(eCornerBottomRightX, eCornerBottomRight); |
| 12610 | CASE(eCornerBottomRightY, eCornerBottomRight); |
| 12611 | CASE(eCornerBottomLeftX, eCornerBottomLeft); |
| 12612 | CASE(eCornerBottomLeftY, eCornerBottomLeft); |
| 12613 | # undef CASE |
| 12614 | |
| 12615 | // Validation of FullToHalfCorner. |
| 12616 | # define CASE(corner, vert, result) \ |
| 12617 | static_assert(FullToHalfCorner(corner, vert) == result, \ |
| 12618 | "FullToHalfCorner is wrong") |
| 12619 | CASE(eCornerTopLeft, false, eCornerTopLeftX); |
| 12620 | CASE(eCornerTopLeft, true, eCornerTopLeftY); |
| 12621 | CASE(eCornerTopRight, false, eCornerTopRightX); |
| 12622 | CASE(eCornerTopRight, true, eCornerTopRightY); |
| 12623 | CASE(eCornerBottomRight, false, eCornerBottomRightX); |
| 12624 | CASE(eCornerBottomRight, true, eCornerBottomRightY); |
| 12625 | CASE(eCornerBottomLeft, false, eCornerBottomLeftX); |
| 12626 | CASE(eCornerBottomLeft, true, eCornerBottomLeftY); |
| 12627 | # undef CASE |
| 12628 | |
| 12629 | // Validation of SideToFullCorner. |
| 12630 | # define CASE(side, second, result) \ |
| 12631 | static_assert(SideToFullCorner(side, second) == result, \ |
| 12632 | "SideToFullCorner is wrong") |
| 12633 | CASE(eSideTop, false, eCornerTopLeft); |
| 12634 | CASE(eSideTop, true, eCornerTopRight); |
| 12635 | |
| 12636 | CASE(eSideRight, false, eCornerTopRight); |
| 12637 | CASE(eSideRight, true, eCornerBottomRight); |
| 12638 | |
| 12639 | CASE(eSideBottom, false, eCornerBottomRight); |
| 12640 | CASE(eSideBottom, true, eCornerBottomLeft); |
| 12641 | |
| 12642 | CASE(eSideLeft, false, eCornerBottomLeft); |
| 12643 | CASE(eSideLeft, true, eCornerTopLeft); |
| 12644 | # undef CASE |
| 12645 | |
| 12646 | // Validation of SideToHalfCorner. |
| 12647 | # define CASE(side, second, parallel, result) \ |
| 12648 | static_assert(SideToHalfCorner(side, second, parallel) == result, \ |
| 12649 | "SideToHalfCorner is wrong") |
| 12650 | CASE(eSideTop, false, true, eCornerTopLeftX); |
| 12651 | CASE(eSideTop, false, false, eCornerTopLeftY); |
| 12652 | CASE(eSideTop, true, true, eCornerTopRightX); |
| 12653 | CASE(eSideTop, true, false, eCornerTopRightY); |
| 12654 | |
| 12655 | CASE(eSideRight, false, false, eCornerTopRightX); |
| 12656 | CASE(eSideRight, false, true, eCornerTopRightY); |
| 12657 | CASE(eSideRight, true, false, eCornerBottomRightX); |
| 12658 | CASE(eSideRight, true, true, eCornerBottomRightY); |
| 12659 | |
| 12660 | CASE(eSideBottom, false, true, eCornerBottomRightX); |
| 12661 | CASE(eSideBottom, false, false, eCornerBottomRightY); |
| 12662 | CASE(eSideBottom, true, true, eCornerBottomLeftX); |
| 12663 | CASE(eSideBottom, true, false, eCornerBottomLeftY); |
| 12664 | |
| 12665 | CASE(eSideLeft, false, false, eCornerBottomLeftX); |
| 12666 | CASE(eSideLeft, false, true, eCornerBottomLeftY); |
| 12667 | CASE(eSideLeft, true, false, eCornerTopLeftX); |
| 12668 | CASE(eSideLeft, true, true, eCornerTopLeftY); |
| 12669 | # undef CASE |
| 12670 | |
| 12671 | #endif |