| File: | var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp |
| Warning: | line 824, column 24 Value stored to 'tHint' during its initialization 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 | /* |
| 8 | * Implementation of nsFrameSelection |
| 9 | */ |
| 10 | |
| 11 | #include "nsFrameSelection.h" |
| 12 | |
| 13 | #include "ErrorList.h" |
| 14 | #include "mozilla/intl/BidiEmbeddingLevel.h" |
| 15 | #include "mozilla/Attributes.h" |
| 16 | #include "mozilla/AutoRestore.h" |
| 17 | #include "mozilla/BasePrincipal.h" |
| 18 | #include "mozilla/HTMLEditor.h" |
| 19 | #include "mozilla/IntegerRange.h" |
| 20 | #include "mozilla/Logging.h" |
| 21 | #include "mozilla/PresShell.h" |
| 22 | #include "mozilla/ScrollContainerFrame.h" |
| 23 | #include "mozilla/ScrollTypes.h" |
| 24 | #include "mozilla/StaticAnalysisFunctions.h" |
| 25 | #include "mozilla/StaticPrefs_bidi.h" |
| 26 | #include "mozilla/StaticPrefs_dom.h" |
| 27 | #include "mozilla/StaticPrefs_layout.h" |
| 28 | #include "mozilla/Unused.h" |
| 29 | |
| 30 | #include "nsCOMPtr.h" |
| 31 | #include "nsDebug.h" |
| 32 | #include "nsFrameTraversal.h" |
| 33 | #include "nsString.h" |
| 34 | #include "nsISelectionListener.h" |
| 35 | #include "nsDeviceContext.h" |
| 36 | #include "nsIContent.h" |
| 37 | #include "nsRange.h" |
| 38 | #include "nsITableCellLayout.h" |
| 39 | #include "nsTArray.h" |
| 40 | #include "nsTableWrapperFrame.h" |
| 41 | #include "nsTableCellFrame.h" |
| 42 | #include "nsCCUncollectableMarker.h" |
| 43 | #include "nsTextFragment.h" |
| 44 | #include <algorithm> |
| 45 | #include "nsContentUtils.h" |
| 46 | #include "nsCSSFrameConstructor.h" |
| 47 | |
| 48 | #include "nsGkAtoms.h" |
| 49 | #include "nsLayoutUtils.h" |
| 50 | #include "nsBidiPresUtils.h" |
| 51 | #include "nsTextFrame.h" |
| 52 | |
| 53 | #include "nsThreadUtils.h" |
| 54 | #include "mozilla/Preferences.h" |
| 55 | |
| 56 | #include "mozilla/PresShell.h" |
| 57 | #include "nsPresContext.h" |
| 58 | #include "nsCaret.h" |
| 59 | |
| 60 | #include "mozilla/MouseEvents.h" |
| 61 | #include "mozilla/TextEvents.h" |
| 62 | |
| 63 | // notifications |
| 64 | #include "mozilla/dom/Document.h" |
| 65 | |
| 66 | #include "nsISelectionController.h" //for the enums |
| 67 | #include "nsCopySupport.h" |
| 68 | #include "nsIClipboard.h" |
| 69 | #include "nsIFrameInlines.h" |
| 70 | |
| 71 | #include "nsError.h" |
| 72 | #include "mozilla/AutoCopyListener.h" |
| 73 | #include "mozilla/dom/AncestorIterator.h" |
| 74 | #include "mozilla/dom/Element.h" |
| 75 | #include "mozilla/dom/Highlight.h" |
| 76 | #include "mozilla/dom/Selection.h" |
| 77 | #include "mozilla/dom/ShadowRoot.h" |
| 78 | #include "mozilla/dom/StaticRange.h" |
| 79 | #include "mozilla/dom/Text.h" |
| 80 | #include "mozilla/ErrorResult.h" |
| 81 | #include "mozilla/dom/SelectionBinding.h" |
| 82 | #include "mozilla/AsyncEventDispatcher.h" |
| 83 | #include "mozilla/Telemetry.h" |
| 84 | |
| 85 | #include "nsFocusManager.h" |
| 86 | #include "nsPIDOMWindow.h" |
| 87 | |
| 88 | #include "SelectionMovementUtils.h" |
| 89 | |
| 90 | using namespace mozilla; |
| 91 | using namespace mozilla::dom; |
| 92 | |
| 93 | static LazyLogModule sFrameSelectionLog("FrameSelection"); |
| 94 | |
| 95 | namespace mozilla { |
| 96 | extern LazyLogModule sSelectionAPILog; |
| 97 | extern void LogStackForSelectionAPI(); |
| 98 | |
| 99 | static void LogSelectionAPI(const dom::Selection* aSelection, |
| 100 | const char* aFuncName, const char* aArgName, |
| 101 | const nsIContent* aContent) { |
| 102 | MOZ_LOG(sSelectionAPILog, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = sSelectionAPILog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "%p nsFrameSelection::%s(%s=%s)", aSelection , aFuncName, aArgName, aContent ? ToString(*aContent).c_str() : "<nullptr>"); } } while (0) |
| 103 | ("%p nsFrameSelection::%s(%s=%s)", aSelection, aFuncName, aArgName,do { const ::mozilla::LogModule* moz_real_module = sSelectionAPILog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "%p nsFrameSelection::%s(%s=%s)", aSelection , aFuncName, aArgName, aContent ? ToString(*aContent).c_str() : "<nullptr>"); } } while (0) |
| 104 | aContent ? ToString(*aContent).c_str() : "<nullptr>"))do { const ::mozilla::LogModule* moz_real_module = sSelectionAPILog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "%p nsFrameSelection::%s(%s=%s)", aSelection , aFuncName, aArgName, aContent ? ToString(*aContent).c_str() : "<nullptr>"); } } while (0); |
| 105 | } |
| 106 | } // namespace mozilla |
| 107 | |
| 108 | // #define DEBUG_TABLE 1 |
| 109 | |
| 110 | /** |
| 111 | * Add cells to the selection inside of the given cells range. |
| 112 | * |
| 113 | * @param aTable [in] HTML table element |
| 114 | * @param aStartRowIndex [in] row index where the cells range starts |
| 115 | * @param aStartColumnIndex [in] column index where the cells range starts |
| 116 | * @param aEndRowIndex [in] row index where the cells range ends |
| 117 | * @param aEndColumnIndex [in] column index where the cells range ends |
| 118 | */ |
| 119 | static nsresult AddCellsToSelection(const nsIContent* aTableContent, |
| 120 | int32_t aStartRowIndex, |
| 121 | int32_t aStartColumnIndex, |
| 122 | int32_t aEndRowIndex, |
| 123 | int32_t aEndColumnIndex, |
| 124 | Selection& aNormalSelection); |
| 125 | |
| 126 | static nsAtom* GetTag(nsINode* aNode); |
| 127 | |
| 128 | static nsINode* GetClosestInclusiveTableCellAncestor(nsINode* aDomNode); |
| 129 | MOZ_CAN_RUN_SCRIPT_BOUNDARY static nsresult CreateAndAddRange( |
| 130 | nsINode* aContainer, int32_t aOffset, Selection& aNormalSelection); |
| 131 | static nsresult SelectCellElement(nsIContent* aCellElement, |
| 132 | Selection& aNormalSelection); |
| 133 | |
| 134 | #ifdef XP_MACOSX |
| 135 | static nsresult UpdateSelectionCacheOnRepaintSelection(Selection* aSel); |
| 136 | #endif // XP_MACOSX |
| 137 | |
| 138 | #ifdef PRINT_RANGE |
| 139 | static void printRange(nsRange* aDomRange); |
| 140 | # define DEBUG_OUT_RANGE(x) printRange(x) |
| 141 | #else |
| 142 | # define DEBUG_OUT_RANGE(x) |
| 143 | #endif // PRINT_RANGE |
| 144 | |
| 145 | /****************************************************************************** |
| 146 | * mozilla::PeekOffsetStruct |
| 147 | ******************************************************************************/ |
| 148 | |
| 149 | // #define DEBUG_SELECTION // uncomment for printf describing every collapse and |
| 150 | // extend. #define DEBUG_NAVIGATION |
| 151 | |
| 152 | // #define DEBUG_TABLE_SELECTION 1 |
| 153 | |
| 154 | namespace mozilla { |
| 155 | |
| 156 | PeekOffsetStruct::PeekOffsetStruct( |
| 157 | nsSelectionAmount aAmount, nsDirection aDirection, int32_t aStartOffset, |
| 158 | nsPoint aDesiredCaretPos, const PeekOffsetOptions aOptions, |
| 159 | EWordMovementType aWordMovementType /* = eDefaultBehavior */, |
| 160 | const Element* aAncestorLimiter /* = nullptr */) |
| 161 | : mAmount(aAmount), |
| 162 | mDirection(aDirection), |
| 163 | mStartOffset(aStartOffset), |
| 164 | mDesiredCaretPos(aDesiredCaretPos), |
| 165 | mWordMovementType(aWordMovementType), |
| 166 | mOptions(aOptions), |
| 167 | mAncestorLimiter(aAncestorLimiter), |
| 168 | mResultFrame(nullptr), |
| 169 | mContentOffset(0), |
| 170 | mAttach(CaretAssociationHint::Before) {} |
| 171 | |
| 172 | } // namespace mozilla |
| 173 | |
| 174 | // Array which contains index of each SelectionType in |
| 175 | // Selection::mDOMSelections. For avoiding using if nor switch to retrieve the |
| 176 | // index, this needs to have -1 for SelectionTypes which won't be created its |
| 177 | // Selection instance. |
| 178 | static const int8_t kIndexOfSelections[] = { |
| 179 | -1, // SelectionType::eInvalid |
| 180 | -1, // SelectionType::eNone |
| 181 | 0, // SelectionType::eNormal |
| 182 | 1, // SelectionType::eSpellCheck |
| 183 | 2, // SelectionType::eIMERawClause |
| 184 | 3, // SelectionType::eIMESelectedRawClause |
| 185 | 4, // SelectionType::eIMEConvertedClause |
| 186 | 5, // SelectionType::eIMESelectedClause |
| 187 | 6, // SelectionType::eAccessibility |
| 188 | 7, // SelectionType::eFind |
| 189 | 8, // SelectionType::eURLSecondary |
| 190 | 9, // SelectionType::eURLStrikeout |
| 191 | 10, // SelectionType::eTargetText |
| 192 | -1, // SelectionType::eHighlight |
| 193 | }; |
| 194 | |
| 195 | inline int8_t GetIndexFromSelectionType(SelectionType aSelectionType) { |
| 196 | // The enum value of eInvalid is -1 and the others are sequential value |
| 197 | // starting from 0. Therefore, |SelectionType + 1| is the index of |
| 198 | // kIndexOfSelections. |
| 199 | return kIndexOfSelections[static_cast<int8_t>(aSelectionType) + 1]; |
| 200 | } |
| 201 | |
| 202 | /* |
| 203 | The limiter is used specifically for the text areas and textfields |
| 204 | In that case it is the DIV tag that is anonymously created for the text |
| 205 | areas/fields. Text nodes and BR nodes fall beneath it. In the case of a |
| 206 | BR node the limiter will be the parent and the offset will point before or |
| 207 | after the BR node. In the case of the text node the parent content is |
| 208 | the text node itself and the offset will be the exact character position. |
| 209 | The offset is not important to check for validity. Simply look at the |
| 210 | passed in content. If it equals the limiter then the selection point is valid. |
| 211 | If its parent it the limiter then the point is also valid. In the case of |
| 212 | NO limiter all points are valid since you are in a topmost iframe. (browser |
| 213 | or composer) |
| 214 | */ |
| 215 | bool nsFrameSelection::NodeIsInLimiters(const nsINode* aContainerNode) const { |
| 216 | return NodeIsInLimiters(aContainerNode, GetLimiter(), GetAncestorLimiter()); |
| 217 | } |
| 218 | |
| 219 | // static |
| 220 | bool nsFrameSelection::NodeIsInLimiters( |
| 221 | const nsINode* aContainerNode, const nsIContent* aSelectionLimiter, |
| 222 | const nsIContent* aSelectionAncestorLimiter) { |
| 223 | if (!aContainerNode) { |
| 224 | return false; |
| 225 | } |
| 226 | |
| 227 | if (aSelectionLimiter && aSelectionLimiter != aContainerNode && |
| 228 | aSelectionLimiter != aContainerNode->GetParent()) { |
| 229 | // if newfocus == the limiter. that's ok. but if not there and not parent |
| 230 | // bad |
| 231 | return false; // not in the right content. tLimiter said so |
| 232 | } |
| 233 | |
| 234 | return !aSelectionAncestorLimiter || |
| 235 | aContainerNode->IsInclusiveDescendantOf(aSelectionAncestorLimiter); |
| 236 | } |
| 237 | |
| 238 | namespace mozilla { |
| 239 | struct MOZ_RAII AutoPrepareFocusRange { |
| 240 | AutoPrepareFocusRange(Selection* aSelection, |
| 241 | const bool aMultiRangeSelection) { |
| 242 | MOZ_ASSERT(aSelection)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aSelection)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aSelection))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aSelection", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 242); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aSelection" ")" ); do { *((volatile int*)__null) = 242; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 243 | MOZ_ASSERT(aSelection->GetType() == SelectionType::eNormal)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aSelection->GetType() == SelectionType::eNormal)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aSelection->GetType() == SelectionType::eNormal)) ), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aSelection->GetType() == SelectionType::eNormal" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 243); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aSelection->GetType() == SelectionType::eNormal" ")"); do { *((volatile int*)__null) = 243; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 244 | |
| 245 | if (aSelection->mStyledRanges.mRanges.Length() <= 1) { |
| 246 | return; |
| 247 | } |
| 248 | |
| 249 | if (aSelection->mFrameSelection->IsUserSelectionReason()) { |
| 250 | mUserSelect.emplace(aSelection); |
| 251 | } |
| 252 | |
| 253 | nsTArray<StyledRange>& ranges = aSelection->mStyledRanges.mRanges; |
| 254 | if (!aSelection->mUserInitiated || aMultiRangeSelection) { |
| 255 | // Scripted command or the user is starting a new explicit multi-range |
| 256 | // selection. |
| 257 | for (StyledRange& entry : ranges) { |
| 258 | MOZ_ASSERT(entry.mRange->IsDynamicRange())do { static_assert( mozilla::detail::AssertionConditionType< decltype(entry.mRange->IsDynamicRange())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(entry.mRange->IsDynamicRange ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("entry.mRange->IsDynamicRange()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 258); AnnotateMozCrashReason("MOZ_ASSERT" "(" "entry.mRange->IsDynamicRange()" ")"); do { *((volatile int*)__null) = 258; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 259 | entry.mRange->AsDynamicRange()->SetIsGenerated(false); |
| 260 | } |
| 261 | return; |
| 262 | } |
| 263 | |
| 264 | if (!IsAnchorRelativeOperation( |
| 265 | aSelection->mFrameSelection->mSelectionChangeReasons)) { |
| 266 | return; |
| 267 | } |
| 268 | |
| 269 | // This operation is against the anchor but our current mAnchorFocusRange |
| 270 | // represents the focus in a multi-range selection. The anchor from a user |
| 271 | // perspective is the most distant generated range on the opposite side. |
| 272 | // Find that range and make it the mAnchorFocusRange. |
| 273 | nsRange* const newAnchorFocusRange = |
| 274 | FindGeneratedRangeMostDistantFromAnchor(*aSelection); |
| 275 | |
| 276 | if (!newAnchorFocusRange) { |
| 277 | // There are no generated ranges - that's fine. |
| 278 | return; |
| 279 | } |
| 280 | |
| 281 | // Setup the new mAnchorFocusRange and mark the old one as generated. |
| 282 | if (aSelection->mAnchorFocusRange) { |
| 283 | aSelection->mAnchorFocusRange->SetIsGenerated(true); |
| 284 | } |
| 285 | |
| 286 | newAnchorFocusRange->SetIsGenerated(false); |
| 287 | aSelection->mAnchorFocusRange = newAnchorFocusRange; |
| 288 | |
| 289 | RemoveGeneratedRanges(*aSelection); |
| 290 | |
| 291 | if (aSelection->mFrameSelection) { |
| 292 | aSelection->mFrameSelection->InvalidateDesiredCaretPos(); |
| 293 | } |
| 294 | } |
| 295 | |
| 296 | private: |
| 297 | static nsRange* FindGeneratedRangeMostDistantFromAnchor( |
| 298 | const Selection& aSelection) { |
| 299 | const nsTArray<StyledRange>& ranges = aSelection.mStyledRanges.mRanges; |
| 300 | const size_t len = ranges.Length(); |
| 301 | nsRange* result{nullptr}; |
| 302 | if (aSelection.GetDirection() == eDirNext) { |
| 303 | for (size_t i = 0; i < len; ++i) { |
| 304 | // This function is only called for selections with type == eNormal. |
| 305 | // (see MOZ_ASSERT in constructor). |
| 306 | // Therefore, all ranges must be dynamic. |
| 307 | if (ranges[i].mRange->AsDynamicRange()->IsGenerated()) { |
| 308 | result = ranges[i].mRange->AsDynamicRange(); |
| 309 | break; |
| 310 | } |
| 311 | } |
| 312 | } else { |
| 313 | size_t i = len; |
| 314 | while (i--) { |
| 315 | if (ranges[i].mRange->AsDynamicRange()->IsGenerated()) { |
| 316 | result = ranges[i].mRange->AsDynamicRange(); |
| 317 | break; |
| 318 | } |
| 319 | } |
| 320 | } |
| 321 | |
| 322 | return result; |
| 323 | } |
| 324 | |
| 325 | static void RemoveGeneratedRanges(Selection& aSelection) { |
| 326 | RefPtr<nsPresContext> presContext = aSelection.GetPresContext(); |
| 327 | nsTArray<StyledRange>& ranges = aSelection.mStyledRanges.mRanges; |
| 328 | size_t i = ranges.Length(); |
| 329 | while (i--) { |
| 330 | // This function is only called for selections with type == eNormal. |
| 331 | // (see MOZ_ASSERT in constructor). |
| 332 | // Therefore, all ranges must be dynamic. |
| 333 | if (!ranges[i].mRange->IsDynamicRange()) { |
| 334 | continue; |
| 335 | } |
| 336 | nsRange* range = ranges[i].mRange->AsDynamicRange(); |
| 337 | if (range->IsGenerated()) { |
| 338 | range->UnregisterSelection(aSelection); |
| 339 | aSelection.SelectFrames(presContext, *range, false); |
| 340 | ranges.RemoveElementAt(i); |
| 341 | } |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | /** |
| 346 | * @aParam aSelectionChangeReasons can be multiple of the reasons defined in |
| 347 | nsISelectionListener.idl. |
| 348 | */ |
| 349 | static bool IsAnchorRelativeOperation(const int16_t aSelectionChangeReasons) { |
| 350 | return aSelectionChangeReasons & |
| 351 | (nsISelectionListener::DRAG_REASON | |
| 352 | nsISelectionListener::MOUSEDOWN_REASON | |
| 353 | nsISelectionListener::MOUSEUP_REASON | |
| 354 | nsISelectionListener::COLLAPSETOSTART_REASON); |
| 355 | } |
| 356 | |
| 357 | Maybe<Selection::AutoUserInitiated> mUserSelect; |
| 358 | }; |
| 359 | |
| 360 | } // namespace mozilla |
| 361 | |
| 362 | ////////////BEGIN nsFrameSelection methods |
| 363 | |
| 364 | template Result<RefPtr<nsRange>, nsresult> |
| 365 | nsFrameSelection::CreateRangeExtendedToSomewhere( |
| 366 | PresShell& aPresShell, |
| 367 | const mozilla::LimitersAndCaretData& aLimitersAndCaretData, |
| 368 | const AbstractRange& aRange, nsDirection aRangeDirection, |
| 369 | nsDirection aExtendDirection, nsSelectionAmount aAmount, |
| 370 | CaretMovementStyle aMovementStyle); |
| 371 | template Result<RefPtr<StaticRange>, nsresult> |
| 372 | nsFrameSelection::CreateRangeExtendedToSomewhere( |
| 373 | PresShell& aPresShell, |
| 374 | const mozilla::LimitersAndCaretData& aLimitersAndCaretData, |
| 375 | const AbstractRange& aRange, nsDirection aRangeDirection, |
| 376 | nsDirection aExtendDirection, nsSelectionAmount aAmount, |
| 377 | CaretMovementStyle aMovementStyle); |
| 378 | |
| 379 | nsFrameSelection::nsFrameSelection(PresShell* aPresShell, nsIContent* aLimiter, |
| 380 | const bool aAccessibleCaretEnabled) { |
| 381 | for (size_t i = 0; i < std::size(mDomSelections); i++) { |
| 382 | mDomSelections[i] = new Selection(kPresentSelectionTypes[i], this); |
| 383 | } |
| 384 | |
| 385 | Selection& sel = NormalSelection(); |
| 386 | if (AutoCopyListener::IsEnabled()) { |
| 387 | sel.NotifyAutoCopy(); |
| 388 | } |
| 389 | |
| 390 | mPresShell = aPresShell; |
| 391 | mDragState = false; |
| 392 | mLimiters.mLimiter = aLimiter; |
| 393 | |
| 394 | // This should only ever be initialized on the main thread, so we are OK here. |
| 395 | MOZ_ASSERT(NS_IsMainThread())do { static_assert( mozilla::detail::AssertionConditionType< decltype(NS_IsMainThread())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(NS_IsMainThread()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("NS_IsMainThread()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 395); AnnotateMozCrashReason("MOZ_ASSERT" "(" "NS_IsMainThread()" ")"); do { *((volatile int*)__null) = 395; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 396 | |
| 397 | mAccessibleCaretEnabled = aAccessibleCaretEnabled; |
| 398 | if (mAccessibleCaretEnabled) { |
| 399 | sel.MaybeNotifyAccessibleCaretEventHub(aPresShell); |
| 400 | } |
| 401 | |
| 402 | sel.EnableSelectionChangeEvent(); |
| 403 | } |
| 404 | |
| 405 | nsFrameSelection::~nsFrameSelection() = default; |
| 406 | |
| 407 | NS_IMPL_CYCLE_COLLECTION_CLASS(nsFrameSelection)nsFrameSelection::cycleCollection nsFrameSelection::_cycleCollectorGlobal ; |
| 408 | |
| 409 | NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsFrameSelection)void nsFrameSelection::cycleCollection::Unlink(void* p) { nsFrameSelection * tmp = DowncastCCParticipant<nsFrameSelection>(p); |
| 410 | for (size_t i = 0; i < std::size(tmp->mDomSelections); ++i) { |
| 411 | tmp->mDomSelections[i] = nullptr; |
| 412 | } |
| 413 | tmp->mHighlightSelections.Clear(); |
| 414 | |
| 415 | NS_IMPL_CYCLE_COLLECTION_UNLINK(ImplCycleCollectionUnlink(tmp->mTableSelection.mClosestInclusiveTableCellAncestor ); |
| 416 | mTableSelection.mClosestInclusiveTableCellAncestor)ImplCycleCollectionUnlink(tmp->mTableSelection.mClosestInclusiveTableCellAncestor ); |
| 417 | tmp->mTableSelection.mMode = TableSelectionMode::None; |
| 418 | tmp->mTableSelection.mDragSelectingCells = false; |
| 419 | NS_IMPL_CYCLE_COLLECTION_UNLINK(mTableSelection.mStartSelectedCell)ImplCycleCollectionUnlink(tmp->mTableSelection.mStartSelectedCell ); |
| 420 | NS_IMPL_CYCLE_COLLECTION_UNLINK(mTableSelection.mEndSelectedCell)ImplCycleCollectionUnlink(tmp->mTableSelection.mEndSelectedCell ); |
| 421 | NS_IMPL_CYCLE_COLLECTION_UNLINK(mTableSelection.mAppendStartSelectedCell)ImplCycleCollectionUnlink(tmp->mTableSelection.mAppendStartSelectedCell ); |
| 422 | NS_IMPL_CYCLE_COLLECTION_UNLINK(mTableSelection.mUnselectCellOnMouseUp)ImplCycleCollectionUnlink(tmp->mTableSelection.mUnselectCellOnMouseUp ); |
| 423 | NS_IMPL_CYCLE_COLLECTION_UNLINK(mMaintainedRange.mRange)ImplCycleCollectionUnlink(tmp->mMaintainedRange.mRange); |
| 424 | NS_IMPL_CYCLE_COLLECTION_UNLINK(mLimiters.mLimiter)ImplCycleCollectionUnlink(tmp->mLimiters.mLimiter); |
| 425 | NS_IMPL_CYCLE_COLLECTION_UNLINK(mLimiters.mAncestorLimiter)ImplCycleCollectionUnlink(tmp->mLimiters.mAncestorLimiter) ; |
| 426 | NS_IMPL_CYCLE_COLLECTION_UNLINK_END(void)tmp; } |
| 427 | NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsFrameSelection)nsresult nsFrameSelection::cycleCollection::TraverseNative( void * p, nsCycleCollectionTraversalCallback& cb) { nsFrameSelection * tmp = DowncastCCParticipant<nsFrameSelection>(p); cb. DescribeRefCountedNode(tmp->mRefCnt.get(), "nsFrameSelection" ); |
| 428 | if (tmp->mPresShell && tmp->mPresShell->GetDocument() && |
| 429 | nsCCUncollectableMarker::InGeneration( |
| 430 | cb, tmp->mPresShell->GetDocument()->GetMarkedCCGeneration())) { |
| 431 | return NS_SUCCESS_INTERRUPTED_TRAVERSE; |
| 432 | } |
| 433 | for (size_t i = 0; i < std::size(tmp->mDomSelections); ++i) { |
| 434 | NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDomSelections[i])ImplCycleCollectionTraverse(cb, tmp->mDomSelections[i], "mDomSelections[i]" , 0); |
| 435 | } |
| 436 | |
| 437 | for (const auto& value : tmp->mHighlightSelections) { |
| 438 | CycleCollectionNoteChild(cb, value.second().get(), |
| 439 | "mHighlightSelections[]"); |
| 440 | } |
| 441 | |
| 442 | NS_IMPL_CYCLE_COLLECTION_TRAVERSE(ImplCycleCollectionTraverse(cb, tmp->mTableSelection.mClosestInclusiveTableCellAncestor , "mTableSelection.mClosestInclusiveTableCellAncestor", 0); |
| 443 | mTableSelection.mClosestInclusiveTableCellAncestor)ImplCycleCollectionTraverse(cb, tmp->mTableSelection.mClosestInclusiveTableCellAncestor , "mTableSelection.mClosestInclusiveTableCellAncestor", 0); |
| 444 | NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTableSelection.mStartSelectedCell)ImplCycleCollectionTraverse(cb, tmp->mTableSelection.mStartSelectedCell , "mTableSelection.mStartSelectedCell", 0); |
| 445 | NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTableSelection.mEndSelectedCell)ImplCycleCollectionTraverse(cb, tmp->mTableSelection.mEndSelectedCell , "mTableSelection.mEndSelectedCell", 0); |
| 446 | NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTableSelection.mAppendStartSelectedCell)ImplCycleCollectionTraverse(cb, tmp->mTableSelection.mAppendStartSelectedCell , "mTableSelection.mAppendStartSelectedCell", 0); |
| 447 | NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTableSelection.mUnselectCellOnMouseUp)ImplCycleCollectionTraverse(cb, tmp->mTableSelection.mUnselectCellOnMouseUp , "mTableSelection.mUnselectCellOnMouseUp", 0); |
| 448 | NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMaintainedRange.mRange)ImplCycleCollectionTraverse(cb, tmp->mMaintainedRange.mRange , "mMaintainedRange.mRange", 0); |
| 449 | NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mLimiters.mLimiter)ImplCycleCollectionTraverse(cb, tmp->mLimiters.mLimiter, "mLimiters.mLimiter" , 0); |
| 450 | NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mLimiters.mAncestorLimiter)ImplCycleCollectionTraverse(cb, tmp->mLimiters.mAncestorLimiter , "mLimiters.mAncestorLimiter", 0); |
| 451 | NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END(void)tmp; return NS_OK; } |
| 452 | |
| 453 | // static |
| 454 | bool nsFrameSelection::Caret::IsVisualMovement( |
| 455 | ExtendSelection aExtendSelection, CaretMovementStyle aMovementStyle) { |
| 456 | int32_t movementFlag = StaticPrefs::bidi_edit_caret_movement_style(); |
| 457 | return aMovementStyle == eVisual || |
| 458 | (aMovementStyle == eUsePrefStyle && |
| 459 | (movementFlag == 1 || |
| 460 | (movementFlag == 2 && aExtendSelection == ExtendSelection::No))); |
| 461 | } |
| 462 | |
| 463 | // Get the x (or y, in vertical writing mode) position requested |
| 464 | // by the Key Handling for line-up/down |
| 465 | nsresult nsFrameSelection::DesiredCaretPos::FetchPos( |
| 466 | nsPoint& aDesiredCaretPos, const PresShell& aPresShell, |
| 467 | Selection& aNormalSelection) const { |
| 468 | MOZ_ASSERT(aNormalSelection.GetType() == SelectionType::eNormal)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNormalSelection.GetType() == SelectionType::eNormal )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNormalSelection.GetType() == SelectionType::eNormal ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aNormalSelection.GetType() == SelectionType::eNormal", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 468); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNormalSelection.GetType() == SelectionType::eNormal" ")"); do { *((volatile int*)__null) = 468; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 469 | |
| 470 | if (mIsSet) { |
| 471 | aDesiredCaretPos = mValue; |
| 472 | return NS_OK; |
| 473 | } |
| 474 | |
| 475 | RefPtr<nsCaret> caret = aPresShell.GetCaret(); |
| 476 | if (!caret) { |
| 477 | return NS_ERROR_NULL_POINTER; |
| 478 | } |
| 479 | |
| 480 | caret->SetSelection(&aNormalSelection); |
| 481 | |
| 482 | nsRect coord; |
| 483 | nsIFrame* caretFrame = caret->GetGeometry(&coord); |
| 484 | if (!caretFrame) { |
| 485 | return NS_ERROR_FAILURE; |
| 486 | } |
| 487 | nsPoint viewOffset(0, 0); |
| 488 | nsView* view = nullptr; |
| 489 | caretFrame->GetOffsetFromView(viewOffset, &view); |
| 490 | if (view) { |
| 491 | coord += viewOffset; |
| 492 | } |
| 493 | aDesiredCaretPos = coord.TopLeft(); |
| 494 | return NS_OK; |
| 495 | } |
| 496 | |
| 497 | void nsFrameSelection::InvalidateDesiredCaretPos() // do not listen to |
| 498 | // mDesiredCaretPos.mValue; |
| 499 | // you must get another. |
| 500 | { |
| 501 | mDesiredCaretPos.Invalidate(); |
| 502 | } |
| 503 | |
| 504 | void nsFrameSelection::DesiredCaretPos::Invalidate() { mIsSet = false; } |
| 505 | |
| 506 | void nsFrameSelection::DesiredCaretPos::Set(const nsPoint& aPos) { |
| 507 | mValue = aPos; |
| 508 | mIsSet = true; |
| 509 | } |
| 510 | |
| 511 | nsresult nsFrameSelection::ConstrainFrameAndPointToAnchorSubtree( |
| 512 | nsIFrame* aFrame, const nsPoint& aPoint, nsIFrame** aRetFrame, |
| 513 | nsPoint& aRetPoint) const { |
| 514 | // |
| 515 | // The whole point of this method is to return a frame and point that |
| 516 | // that lie within the same valid subtree as the anchor node's frame, |
| 517 | // for use with the method GetContentAndOffsetsFromPoint(). |
| 518 | // |
| 519 | // A valid subtree is defined to be one where all the content nodes in |
| 520 | // the tree have a valid parent-child relationship. |
| 521 | // |
| 522 | // If the anchor frame and aFrame are in the same subtree, aFrame will |
| 523 | // be returned in aRetFrame. If they are in different subtrees, we |
| 524 | // return the frame for the root of the subtree. |
| 525 | // |
| 526 | |
| 527 | if (!aFrame || !aRetFrame) { |
| 528 | return NS_ERROR_NULL_POINTER; |
| 529 | } |
| 530 | |
| 531 | *aRetFrame = aFrame; |
| 532 | aRetPoint = aPoint; |
| 533 | |
| 534 | // |
| 535 | // Get the frame and content for the selection's anchor point! |
| 536 | // |
| 537 | |
| 538 | const Selection& sel = NormalSelection(); |
| 539 | |
| 540 | nsCOMPtr<nsIContent> anchorContent = |
| 541 | nsIContent::FromNodeOrNull(sel.GetMayCrossShadowBoundaryAnchorNode()); |
| 542 | if (!anchorContent) { |
| 543 | return NS_ERROR_FAILURE; |
| 544 | } |
| 545 | |
| 546 | // |
| 547 | // Now find the root of the subtree containing the anchor's content. |
| 548 | // |
| 549 | |
| 550 | NS_ENSURE_STATE(mPresShell)do { if ((__builtin_expect(!!(!(mPresShell)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mPresShell" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 550); return NS_ERROR_UNEXPECTED; } } while (false); |
| 551 | RefPtr<PresShell> presShell = mPresShell; |
| 552 | nsIContent* anchorRoot = |
| 553 | anchorContent |
| 554 | ->GetSelectionRootContent( |
| 555 | presShell, |
| 556 | StaticPrefs::dom_shadowdom_selection_across_boundary_enabled() /* aAllowCrossShadowBoundary */); |
| 557 | NS_ENSURE_TRUE(anchorRoot, NS_ERROR_UNEXPECTED)do { if ((__builtin_expect(!!(!(anchorRoot)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "anchorRoot" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 557); return NS_ERROR_UNEXPECTED; } } while (false); |
| 558 | |
| 559 | // |
| 560 | // Now find the root of the subtree containing aFrame's content. |
| 561 | // |
| 562 | |
| 563 | nsCOMPtr<nsIContent> content = aFrame->GetContent(); |
| 564 | |
| 565 | if (content) { |
| 566 | nsIContent* contentRoot = |
| 567 | content->GetSelectionRootContent( |
| 568 | presShell, StaticPrefs:: |
| 569 | dom_shadowdom_selection_across_boundary_enabled() /* aAllowCrossShadowBoundary */); |
| 570 | NS_ENSURE_TRUE(contentRoot, NS_ERROR_UNEXPECTED)do { if ((__builtin_expect(!!(!(contentRoot)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "contentRoot" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 570); return NS_ERROR_UNEXPECTED; } } while (false); |
| 571 | |
| 572 | if (anchorRoot == contentRoot) { |
| 573 | // If the aFrame's content isn't the capturing content, it should be |
| 574 | // a descendant. At this time, we can return simply. |
| 575 | nsIContent* capturedContent = PresShell::GetCapturingContent(); |
| 576 | if (capturedContent != content) { |
| 577 | return NS_OK; |
| 578 | } |
| 579 | |
| 580 | // Find the frame under the mouse cursor with the root frame. |
| 581 | // At this time, don't use the anchor's frame because it may not have |
| 582 | // fixed positioned frames. |
| 583 | nsIFrame* rootFrame = presShell->GetRootFrame(); |
| 584 | nsPoint ptInRoot = aPoint + aFrame->GetOffsetTo(rootFrame); |
| 585 | nsIFrame* cursorFrame = |
| 586 | nsLayoutUtils::GetFrameForPoint(RelativeTo{rootFrame}, ptInRoot); |
| 587 | |
| 588 | // If the mouse cursor in on a frame which is descendant of same |
| 589 | // selection root, we can expand the selection to the frame. |
| 590 | if (cursorFrame && cursorFrame->PresShell() == presShell) { |
| 591 | nsCOMPtr<nsIContent> cursorContent = cursorFrame->GetContent(); |
| 592 | NS_ENSURE_TRUE(cursorContent, NS_ERROR_FAILURE)do { if ((__builtin_expect(!!(!(cursorContent)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "cursorContent" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 592); return NS_ERROR_FAILURE; } } while (false); |
| 593 | nsIContent* cursorContentRoot = cursorContent->GetSelectionRootContent( |
| 594 | presShell, StaticPrefs:: |
| 595 | dom_shadowdom_selection_across_boundary_enabled() /* aAllowCrossShadowBoundary */); |
| 596 | NS_ENSURE_TRUE(cursorContentRoot, NS_ERROR_UNEXPECTED)do { if ((__builtin_expect(!!(!(cursorContentRoot)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "cursorContentRoot" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 596); return NS_ERROR_UNEXPECTED; } } while (false); |
| 597 | if (cursorContentRoot == anchorRoot) { |
| 598 | *aRetFrame = cursorFrame; |
| 599 | aRetPoint = aPoint + aFrame->GetOffsetTo(cursorFrame); |
| 600 | return NS_OK; |
| 601 | } |
| 602 | } |
| 603 | // Otherwise, e.g., the cursor isn't on any frames (e.g., the mouse |
| 604 | // cursor is out of the window), we should use the frame of the anchor |
| 605 | // root. |
| 606 | } |
| 607 | } |
| 608 | |
| 609 | // |
| 610 | // When we can't find a frame which is under the mouse cursor and has a same |
| 611 | // selection root as the anchor node's, we should return the selection root |
| 612 | // frame. |
| 613 | // |
| 614 | |
| 615 | *aRetFrame = anchorRoot->GetPrimaryFrame(); |
| 616 | |
| 617 | if (!*aRetFrame) { |
| 618 | return NS_ERROR_FAILURE; |
| 619 | } |
| 620 | |
| 621 | // |
| 622 | // Now make sure that aRetPoint is converted to the same coordinate |
| 623 | // system used by aRetFrame. |
| 624 | // |
| 625 | |
| 626 | aRetPoint = aPoint + aFrame->GetOffsetTo(*aRetFrame); |
| 627 | |
| 628 | return NS_OK; |
| 629 | } |
| 630 | |
| 631 | void nsFrameSelection::SetCaretBidiLevelAndMaybeSchedulePaint( |
| 632 | mozilla::intl::BidiEmbeddingLevel aLevel) { |
| 633 | // If the current level is undefined, we have just inserted new text. |
| 634 | // In this case, we don't want to reset the keyboard language |
| 635 | mCaret.mBidiLevel = aLevel; |
| 636 | |
| 637 | RefPtr<nsCaret> caret; |
| 638 | if (mPresShell && (caret = mPresShell->GetCaret())) { |
| 639 | caret->SchedulePaint(); |
| 640 | } |
| 641 | } |
| 642 | |
| 643 | mozilla::intl::BidiEmbeddingLevel nsFrameSelection::GetCaretBidiLevel() const { |
| 644 | return mCaret.mBidiLevel; |
| 645 | } |
| 646 | |
| 647 | void nsFrameSelection::UndefineCaretBidiLevel() { |
| 648 | mCaret.mBidiLevel = mozilla::intl::BidiEmbeddingLevel(mCaret.mBidiLevel | |
| 649 | BIDI_LEVEL_UNDEFINEDmozilla::intl::BidiEmbeddingLevel(0x80)); |
| 650 | } |
| 651 | |
| 652 | #ifdef PRINT_RANGE |
| 653 | void printRange(nsRange* aDomRange) { |
| 654 | if (!aDomRange) { |
| 655 | printf("NULL Range\n"); |
| 656 | } |
| 657 | nsINode* startNode = aDomRange->GetStartContainer(); |
| 658 | nsINode* endNode = aDomRange->GetEndContainer(); |
| 659 | int32_t startOffset = aDomRange->StartOffset(); |
| 660 | int32_t endOffset = aDomRange->EndOffset(); |
| 661 | |
| 662 | printf("range: 0x%lx\t start: 0x%lx %ld, \t end: 0x%lx,%ld\n", |
| 663 | (unsigned long)aDomRange, (unsigned long)startNode, (long)startOffset, |
| 664 | (unsigned long)endNode, (long)endOffset); |
| 665 | } |
| 666 | #endif /* PRINT_RANGE */ |
| 667 | |
| 668 | static nsAtom* GetTag(nsINode* aNode) { |
| 669 | nsCOMPtr<nsIContent> content = do_QueryInterface(aNode); |
| 670 | if (!content) { |
| 671 | MOZ_ASSERT_UNREACHABLE("bad node passed to GetTag()")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: " "bad node passed to GetTag()" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 671); AnnotateMozCrashReason("MOZ_ASSERT" "(" "false" ") (" "MOZ_ASSERT_UNREACHABLE: " "bad node passed to GetTag()" ")" ); do { *((volatile int*)__null) = 671; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 672 | return nullptr; |
| 673 | } |
| 674 | |
| 675 | return content->NodeInfo()->NameAtom(); |
| 676 | } |
| 677 | |
| 678 | /** |
| 679 | * https://dom.spec.whatwg.org/#concept-tree-inclusive-ancestor. |
| 680 | */ |
| 681 | static nsINode* GetClosestInclusiveTableCellAncestor(nsINode* aDomNode) { |
| 682 | if (!aDomNode) { |
| 683 | return nullptr; |
| 684 | } |
| 685 | nsINode* current = aDomNode; |
| 686 | // Start with current node and look for a table cell |
| 687 | while (current) { |
| 688 | nsAtom* tag = GetTag(current); |
| 689 | if (tag == nsGkAtoms::td || tag == nsGkAtoms::th) { |
| 690 | return current; |
| 691 | } |
| 692 | current = current->GetParent(); |
| 693 | } |
| 694 | return nullptr; |
| 695 | } |
| 696 | |
| 697 | static nsDirection GetCaretDirection(const nsIFrame& aFrame, |
| 698 | nsDirection aDirection, |
| 699 | bool aVisualMovement) { |
| 700 | const mozilla::intl::BidiDirection paragraphDirection = |
| 701 | nsBidiPresUtils::ParagraphDirection(&aFrame); |
| 702 | return (aVisualMovement && |
| 703 | paragraphDirection == mozilla::intl::BidiDirection::RTL) |
| 704 | ? nsDirection(1 - aDirection) |
| 705 | : aDirection; |
| 706 | } |
| 707 | |
| 708 | nsresult nsFrameSelection::MoveCaret(nsDirection aDirection, |
| 709 | ExtendSelection aExtendSelection, |
| 710 | const nsSelectionAmount aAmount, |
| 711 | CaretMovementStyle aMovementStyle) { |
| 712 | NS_ENSURE_STATE(mPresShell)do { if ((__builtin_expect(!!(!(mPresShell)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mPresShell" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 712); return NS_ERROR_UNEXPECTED; } } while (false); |
| 713 | // Flush out layout, since we need it to be up to date to do caret |
| 714 | // positioning. |
| 715 | OwningNonNull<PresShell> presShell(*mPresShell); |
| 716 | presShell->FlushPendingNotifications(FlushType::Layout); |
| 717 | |
| 718 | if (!mPresShell) { |
| 719 | return NS_OK; |
| 720 | } |
| 721 | |
| 722 | nsPresContext* context = mPresShell->GetPresContext(); |
| 723 | if (!context) { |
| 724 | return NS_ERROR_FAILURE; |
| 725 | } |
| 726 | |
| 727 | const RefPtr<Selection> sel = &NormalSelection(); |
| 728 | |
| 729 | auto scrollFlags = ScrollFlags::None; |
| 730 | if (sel->IsEditorSelection()) { |
| 731 | // If caret moves in editor, it should cause scrolling even if it's in |
| 732 | // overflow: hidden;. |
| 733 | scrollFlags |= ScrollFlags::ScrollOverflowHidden; |
| 734 | } |
| 735 | |
| 736 | const bool doCollapse = [&] { |
| 737 | if (sel->IsCollapsed() || aExtendSelection == ExtendSelection::Yes) { |
| 738 | return false; |
| 739 | } |
| 740 | if (aAmount > eSelectLine) { |
| 741 | return false; |
| 742 | } |
| 743 | int32_t caretStyle = StaticPrefs::layout_selection_caret_style(); |
| 744 | return caretStyle == 2 || (caretStyle == 0 && aAmount != eSelectLine); |
| 745 | }(); |
| 746 | |
| 747 | if (doCollapse) { |
| 748 | if (aDirection == eDirPrevious) { |
| 749 | SetChangeReasons(nsISelectionListener::COLLAPSETOSTART_REASON); |
| 750 | mCaret.mHint = CaretAssociationHint::After; |
| 751 | } else { |
| 752 | SetChangeReasons(nsISelectionListener::COLLAPSETOEND_REASON); |
| 753 | mCaret.mHint = CaretAssociationHint::Before; |
| 754 | } |
| 755 | } else { |
| 756 | SetChangeReasons(nsISelectionListener::KEYPRESS_REASON); |
| 757 | } |
| 758 | |
| 759 | mCaretMoveAmount = aAmount; |
| 760 | |
| 761 | AutoPrepareFocusRange prep(sel, false); |
| 762 | |
| 763 | // we must keep this around and revalidate it when its just UP/DOWN |
| 764 | nsPoint desiredPos(0, 0); |
| 765 | |
| 766 | if (aAmount == eSelectLine) { |
| 767 | nsresult result = mDesiredCaretPos.FetchPos(desiredPos, *mPresShell, *sel); |
| 768 | if (NS_FAILED(result)((bool)(__builtin_expect(!!(NS_FAILED_impl(result)), 0)))) { |
| 769 | return result; |
| 770 | } |
| 771 | mDesiredCaretPos.Set(desiredPos); |
| 772 | } |
| 773 | |
| 774 | bool visualMovement = |
| 775 | Caret::IsVisualMovement(aExtendSelection, aMovementStyle); |
| 776 | const PrimaryFrameData frameForFocus = |
| 777 | sel->GetPrimaryFrameForCaretAtFocusNode(visualMovement); |
| 778 | if (!frameForFocus.mFrame) { |
| 779 | return NS_ERROR_FAILURE; |
| 780 | } |
| 781 | if (visualMovement) { |
| 782 | // FYI: This was done during a call of GetPrimaryFrameForCaretAtFocusNode. |
| 783 | // Therefore, this may not be intended by the original author. |
| 784 | SetHint(frameForFocus.mHint); |
| 785 | } |
| 786 | |
| 787 | Result<bool, nsresult> isIntraLineCaretMove = |
| 788 | SelectionMovementUtils::IsIntraLineCaretMove(aAmount); |
| 789 | nsDirection direction{aDirection}; |
| 790 | if (isIntraLineCaretMove.isErr()) { |
| 791 | return isIntraLineCaretMove.unwrapErr(); |
| 792 | } |
| 793 | if (isIntraLineCaretMove.inspect()) { |
| 794 | // Forget old caret position for moving caret to different line since |
| 795 | // caret position may be changed. |
| 796 | mDesiredCaretPos.Invalidate(); |
| 797 | direction = |
| 798 | GetCaretDirection(*frameForFocus.mFrame, aDirection, visualMovement); |
| 799 | } |
| 800 | |
| 801 | if (doCollapse) { |
| 802 | const nsRange* anchorFocusRange = sel->GetAnchorFocusRange(); |
| 803 | if (anchorFocusRange) { |
| 804 | RefPtr<nsINode> node; |
| 805 | uint32_t offset; |
| 806 | if (visualMovement && |
| 807 | nsBidiPresUtils::IsReversedDirectionFrame(frameForFocus.mFrame)) { |
| 808 | direction = nsDirection(1 - direction); |
| 809 | } |
| 810 | if (direction == eDirPrevious) { |
| 811 | node = anchorFocusRange->GetStartContainer(); |
| 812 | offset = anchorFocusRange->StartOffset(); |
| 813 | } else { |
| 814 | node = anchorFocusRange->GetEndContainer(); |
| 815 | offset = anchorFocusRange->EndOffset(); |
| 816 | } |
| 817 | sel->CollapseInLimiter(node, offset); |
| 818 | } |
| 819 | sel->ScrollIntoView(nsISelectionController::SELECTION_FOCUS_REGION, |
| 820 | ScrollAxis(), ScrollAxis(), scrollFlags); |
| 821 | return NS_OK; |
| 822 | } |
| 823 | |
| 824 | CaretAssociationHint tHint( |
Value stored to 'tHint' during its initialization is never read | |
| 825 | mCaret.mHint); // temporary variable so we dont set |
| 826 | // mCaret.mHint until it is necessary |
| 827 | |
| 828 | Result<PeekOffsetOptions, nsresult> options = |
| 829 | CreatePeekOffsetOptionsForCaretMove(sel, aExtendSelection, |
| 830 | aMovementStyle); |
| 831 | if (options.isErr()) { |
| 832 | return options.propagateErr(); |
| 833 | } |
| 834 | Result<const dom::Element*, nsresult> ancestorLimiter = |
| 835 | GetAncestorLimiterForCaretMove(sel); |
| 836 | if (ancestorLimiter.isErr()) { |
| 837 | return ancestorLimiter.propagateErr(); |
| 838 | } |
| 839 | nsIContent* content = nsIContent::FromNodeOrNull(sel->GetFocusNode()); |
| 840 | |
| 841 | Result<PeekOffsetStruct, nsresult> result = |
| 842 | SelectionMovementUtils::PeekOffsetForCaretMove( |
| 843 | content, sel->FocusOffset(), direction, GetHint(), |
| 844 | GetCaretBidiLevel(), aAmount, desiredPos, options.unwrap(), |
| 845 | ancestorLimiter.unwrap()); |
| 846 | nsresult rv; |
| 847 | if (result.isOk() && result.inspect().mResultContent) { |
| 848 | const PeekOffsetStruct& pos = result.inspect(); |
| 849 | nsIFrame* theFrame; |
| 850 | int32_t frameStart, frameEnd; |
| 851 | |
| 852 | if (aAmount <= eSelectWordNoSpace) { |
| 853 | // For left/right, PeekOffset() sets pos.mResultFrame correctly, but does |
| 854 | // not set pos.mAttachForward, so determine the hint here based on the |
| 855 | // result frame and offset: If we're at the end of a text frame, set the |
| 856 | // hint to ASSOCIATE_BEFORE to indicate that we want the caret displayed |
| 857 | // at the end of this frame, not at the beginning of the next one. |
| 858 | theFrame = pos.mResultFrame; |
| 859 | std::tie(frameStart, frameEnd) = theFrame->GetOffsets(); |
| 860 | if (frameEnd == pos.mContentOffset && |
| 861 | !(frameStart == 0 && frameEnd == 0)) { |
| 862 | tHint = CaretAssociationHint::Before; |
| 863 | } else { |
| 864 | tHint = CaretAssociationHint::After; |
| 865 | } |
| 866 | } else { |
| 867 | // For up/down and home/end, pos.mResultFrame might not be set correctly, |
| 868 | // or not at all. In these cases, get the frame based on the content and |
| 869 | // hint returned by PeekOffset(). |
| 870 | tHint = pos.mAttach; |
| 871 | theFrame = SelectionMovementUtils::GetFrameForNodeOffset( |
| 872 | pos.mResultContent, pos.mContentOffset, tHint); |
| 873 | if (!theFrame) { |
| 874 | return NS_ERROR_FAILURE; |
| 875 | } |
| 876 | |
| 877 | std::tie(frameStart, frameEnd) = theFrame->GetOffsets(); |
| 878 | } |
| 879 | |
| 880 | if (context->BidiEnabled()) { |
| 881 | switch (aAmount) { |
| 882 | case eSelectBeginLine: |
| 883 | case eSelectEndLine: { |
| 884 | // In Bidi contexts, PeekOffset calculates pos.mContentOffset |
| 885 | // differently depending on whether the movement is visual or logical. |
| 886 | // For visual movement, pos.mContentOffset depends on the direction- |
| 887 | // ality of the first/last frame on the line (theFrame), and the caret |
| 888 | // directionality must correspond. |
| 889 | FrameBidiData bidiData = theFrame->GetBidiData(); |
| 890 | SetCaretBidiLevelAndMaybeSchedulePaint( |
| 891 | visualMovement ? bidiData.embeddingLevel : bidiData.baseLevel); |
| 892 | break; |
| 893 | } |
| 894 | default: |
| 895 | // If the current position is not a frame boundary, it's enough just |
| 896 | // to take the Bidi level of the current frame |
| 897 | if ((pos.mContentOffset != frameStart && |
| 898 | pos.mContentOffset != frameEnd) || |
| 899 | eSelectLine == aAmount) { |
| 900 | SetCaretBidiLevelAndMaybeSchedulePaint( |
| 901 | theFrame->GetEmbeddingLevel()); |
| 902 | } else { |
| 903 | BidiLevelFromMove(mPresShell, pos.mResultContent, |
| 904 | pos.mContentOffset, aAmount, tHint); |
| 905 | } |
| 906 | } |
| 907 | } |
| 908 | // "pos" is on the stack, so pos.mResultContent has stack lifetime, so using |
| 909 | // MOZ_KnownLive is ok. |
| 910 | const FocusMode focusMode = aExtendSelection == ExtendSelection::Yes |
| 911 | ? FocusMode::kExtendSelection |
| 912 | : FocusMode::kCollapseToNewPoint; |
| 913 | rv = TakeFocus(MOZ_KnownLive(*pos.mResultContent)(*pos.mResultContent), pos.mContentOffset, |
| 914 | pos.mContentOffset, tHint, focusMode); |
| 915 | } else if (aAmount <= eSelectWordNoSpace && direction == eDirNext && |
| 916 | aExtendSelection == ExtendSelection::No) { |
| 917 | // Collapse selection if PeekOffset failed, we either |
| 918 | // 1. bumped into the BRFrame, bug 207623 |
| 919 | // 2. had select-all in a text input (DIV range), bug 352759. |
| 920 | bool isBRFrame = frameForFocus.mFrame->IsBrFrame(); |
| 921 | RefPtr<nsINode> node = sel->GetFocusNode(); |
| 922 | sel->CollapseInLimiter(node, sel->FocusOffset()); |
| 923 | // Note: 'frameForFocus.mFrame' might be dead here. |
| 924 | if (!isBRFrame) { |
| 925 | mCaret.mHint = CaretAssociationHint::Before; // We're now at the end of |
| 926 | // the frame to the left. |
| 927 | } |
| 928 | rv = NS_OK; |
| 929 | } else { |
| 930 | rv = result.isErr() ? result.unwrapErr() : NS_OK; |
| 931 | } |
| 932 | if (NS_SUCCEEDED(rv)((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1)))) { |
| 933 | rv = sel->ScrollIntoView(nsISelectionController::SELECTION_FOCUS_REGION, |
| 934 | ScrollAxis(), ScrollAxis(), scrollFlags); |
| 935 | } |
| 936 | |
| 937 | return rv; |
| 938 | } |
| 939 | |
| 940 | // static |
| 941 | Result<PeekOffsetOptions, nsresult> |
| 942 | nsFrameSelection::CreatePeekOffsetOptionsForCaretMove( |
| 943 | const nsIContent* aSelectionLimiter, |
| 944 | ForceEditableRegion aForceEditableRegion, ExtendSelection aExtendSelection, |
| 945 | CaretMovementStyle aMovementStyle) { |
| 946 | PeekOffsetOptions options; |
| 947 | // set data using aSelectionLimiter to stop on scroll views. If we have a |
| 948 | // limiter then we stop peeking when we hit scrollable views. If no limiter |
| 949 | // then just let it go ahead |
| 950 | if (aSelectionLimiter) { |
| 951 | options += PeekOffsetOption::StopAtScroller; |
| 952 | } |
| 953 | const bool visualMovement = |
| 954 | Caret::IsVisualMovement(aExtendSelection, aMovementStyle); |
| 955 | if (visualMovement) { |
| 956 | options += PeekOffsetOption::Visual; |
| 957 | } |
| 958 | if (aExtendSelection == ExtendSelection::Yes) { |
| 959 | options += PeekOffsetOption::Extend; |
| 960 | } |
| 961 | if (static_cast<bool>(aForceEditableRegion)) { |
| 962 | options += PeekOffsetOption::ForceEditableRegion; |
| 963 | } |
| 964 | return options; |
| 965 | } |
| 966 | |
| 967 | Result<Element*, nsresult> nsFrameSelection::GetAncestorLimiterForCaretMove( |
| 968 | dom::Selection* aSelection) const { |
| 969 | if (!mPresShell) { |
| 970 | return Err(NS_ERROR_NULL_POINTER); |
| 971 | } |
| 972 | |
| 973 | MOZ_ASSERT(aSelection)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aSelection)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aSelection))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aSelection", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 973); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aSelection" ")" ); do { *((volatile int*)__null) = 973; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 974 | nsIContent* content = nsIContent::FromNodeOrNull(aSelection->GetFocusNode()); |
| 975 | if (!content) { |
| 976 | return Err(NS_ERROR_FAILURE); |
| 977 | } |
| 978 | |
| 979 | MOZ_ASSERT(mPresShell->GetDocument() == content->GetComposedDoc())do { static_assert( mozilla::detail::AssertionConditionType< decltype(mPresShell->GetDocument() == content->GetComposedDoc ())>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(mPresShell->GetDocument() == content->GetComposedDoc ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("mPresShell->GetDocument() == content->GetComposedDoc()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 979); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mPresShell->GetDocument() == content->GetComposedDoc()" ")"); do { *((volatile int*)__null) = 979; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 980 | |
| 981 | Element* ancestorLimiter = Element::FromNodeOrNull(GetAncestorLimiter()); |
| 982 | if (aSelection->IsEditorSelection()) { |
| 983 | // If the editor has not receive `focus` event, it may have not set ancestor |
| 984 | // limiter. Then, we need to compute it here for the caret move. |
| 985 | if (!ancestorLimiter) { |
| 986 | // Editing hosts can be nested. Therefore, computing selection root from |
| 987 | // selection range may be different from the focused editing host. |
| 988 | // Therefore, we may need to use a non-closest inclusive ancestor editing |
| 989 | // host of selection range container. On the other hand, selection ranges |
| 990 | // may be outside of focused editing host. In such case, we should use |
| 991 | // the closest editing host as the ancestor limiter instead. |
| 992 | PresShell* const presShell = aSelection->GetPresShell(); |
| 993 | const Document* const doc = |
| 994 | presShell ? presShell->GetDocument() : nullptr; |
| 995 | if (const nsPIDOMWindowInner* const win = |
| 996 | doc ? doc->GetInnerWindow() : nullptr) { |
| 997 | Element* const focusedElement = win->GetFocusedElement(); |
| 998 | Element* closestEditingHost = nullptr; |
| 999 | for (Element* element : content->InclusiveAncestorsOfType<Element>()) { |
| 1000 | if (element->IsEditingHost()) { |
| 1001 | if (!closestEditingHost) { |
| 1002 | closestEditingHost = element; |
| 1003 | } |
| 1004 | if (focusedElement == element) { |
| 1005 | ancestorLimiter = focusedElement; |
| 1006 | break; |
| 1007 | } |
| 1008 | } |
| 1009 | } |
| 1010 | if (!ancestorLimiter) { |
| 1011 | ancestorLimiter = closestEditingHost; |
| 1012 | } |
| 1013 | } |
| 1014 | // If it's the root element, we don't need to limit the new caret |
| 1015 | // position. |
| 1016 | if (ancestorLimiter && !ancestorLimiter->GetParent()) { |
| 1017 | ancestorLimiter = nullptr; |
| 1018 | } |
| 1019 | } |
| 1020 | } |
| 1021 | return ancestorLimiter; |
| 1022 | } |
| 1023 | |
| 1024 | nsPrevNextBidiLevels nsFrameSelection::GetPrevNextBidiLevels( |
| 1025 | nsIContent* aNode, uint32_t aContentOffset, bool aJumpLines) const { |
| 1026 | return SelectionMovementUtils::GetPrevNextBidiLevels( |
| 1027 | aNode, aContentOffset, mCaret.mHint, aJumpLines); |
| 1028 | } |
| 1029 | |
| 1030 | nsresult nsFrameSelection::MaintainSelection(nsSelectionAmount aAmount) { |
| 1031 | const Selection& sel = NormalSelection(); |
| 1032 | |
| 1033 | mMaintainedRange.MaintainAnchorFocusRange(sel, aAmount); |
| 1034 | |
| 1035 | return NS_OK; |
| 1036 | } |
| 1037 | |
| 1038 | void nsFrameSelection::BidiLevelFromMove(PresShell* aPresShell, |
| 1039 | nsIContent* aNode, |
| 1040 | uint32_t aContentOffset, |
| 1041 | nsSelectionAmount aAmount, |
| 1042 | CaretAssociationHint aHint) { |
| 1043 | switch (aAmount) { |
| 1044 | // Movement within the line: the new cursor Bidi level is the level of the |
| 1045 | // last character moved over |
| 1046 | case eSelectCharacter: |
| 1047 | case eSelectCluster: |
| 1048 | case eSelectWord: |
| 1049 | case eSelectWordNoSpace: |
| 1050 | case eSelectBeginLine: |
| 1051 | case eSelectEndLine: |
| 1052 | case eSelectNoAmount: { |
| 1053 | nsPrevNextBidiLevels levels = |
| 1054 | SelectionMovementUtils::GetPrevNextBidiLevels(aNode, aContentOffset, |
| 1055 | aHint, false); |
| 1056 | |
| 1057 | SetCaretBidiLevelAndMaybeSchedulePaint( |
| 1058 | aHint == CaretAssociationHint::Before ? levels.mLevelBefore |
| 1059 | : levels.mLevelAfter); |
| 1060 | break; |
| 1061 | } |
| 1062 | /* |
| 1063 | // Up and Down: the new cursor Bidi level is the smaller of the two |
| 1064 | surrounding characters case eSelectLine: case eSelectParagraph: |
| 1065 | GetPrevNextBidiLevels(aContext, aNode, aContentOffset, &firstFrame, |
| 1066 | &secondFrame, &firstLevel, &secondLevel); |
| 1067 | aPresShell->SetCaretBidiLevelAndMaybeSchedulePaint(std::min(firstLevel, |
| 1068 | secondLevel)); break; |
| 1069 | */ |
| 1070 | |
| 1071 | default: |
| 1072 | UndefineCaretBidiLevel(); |
| 1073 | } |
| 1074 | } |
| 1075 | |
| 1076 | void nsFrameSelection::BidiLevelFromClick(nsIContent* aNode, |
| 1077 | uint32_t aContentOffset) { |
| 1078 | nsIFrame* clickInFrame = nullptr; |
| 1079 | clickInFrame = SelectionMovementUtils::GetFrameForNodeOffset( |
| 1080 | aNode, aContentOffset, mCaret.mHint); |
| 1081 | if (!clickInFrame) { |
| 1082 | return; |
| 1083 | } |
| 1084 | |
| 1085 | SetCaretBidiLevelAndMaybeSchedulePaint(clickInFrame->GetEmbeddingLevel()); |
| 1086 | } |
| 1087 | |
| 1088 | void nsFrameSelection::MaintainedRange::AdjustNormalSelection( |
| 1089 | const nsIContent* aContent, const int32_t aOffset, |
| 1090 | Selection& aNormalSelection) const { |
| 1091 | MOZ_ASSERT(aNormalSelection.Type() == SelectionType::eNormal)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNormalSelection.Type() == SelectionType::eNormal)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNormalSelection.Type() == SelectionType::eNormal))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNormalSelection.Type() == SelectionType::eNormal" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1091); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNormalSelection.Type() == SelectionType::eNormal" ")"); do { *((volatile int*)__null) = 1091; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1092 | |
| 1093 | if (!mRange || !aContent) { |
| 1094 | return; |
| 1095 | } |
| 1096 | |
| 1097 | nsINode* rangeStartNode = mRange->GetStartContainer(); |
| 1098 | nsINode* rangeEndNode = mRange->GetEndContainer(); |
| 1099 | const uint32_t rangeStartOffset = mRange->StartOffset(); |
| 1100 | const uint32_t rangeEndOffset = mRange->EndOffset(); |
| 1101 | |
| 1102 | NS_ASSERTION(aOffset >= 0, "aOffset should not be negative")do { if (!(aOffset >= 0)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "aOffset should not be negative", "aOffset >= 0", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1102); MOZ_PretendNoReturn(); } } while (0); |
| 1103 | const Maybe<int32_t> relToStart = |
| 1104 | nsContentUtils::ComparePoints_AllowNegativeOffsets( |
| 1105 | rangeStartNode, rangeStartOffset, aContent, aOffset); |
| 1106 | if (NS_WARN_IF(!relToStart)NS_warn_if_impl(!relToStart, "!relToStart", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1106)) { |
| 1107 | // Potentially handle this properly when Selection across Shadow DOM |
| 1108 | // boundary is implemented |
| 1109 | // (https://bugzilla.mozilla.org/show_bug.cgi?id=1607497). |
| 1110 | return; |
| 1111 | } |
| 1112 | |
| 1113 | const Maybe<int32_t> relToEnd = |
| 1114 | nsContentUtils::ComparePoints_AllowNegativeOffsets( |
| 1115 | rangeEndNode, rangeEndOffset, aContent, aOffset); |
| 1116 | if (NS_WARN_IF(!relToEnd)NS_warn_if_impl(!relToEnd, "!relToEnd", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1116)) { |
| 1117 | // Potentially handle this properly when Selection across Shadow DOM |
| 1118 | // boundary is implemented |
| 1119 | // (https://bugzilla.mozilla.org/show_bug.cgi?id=1607497). |
| 1120 | return; |
| 1121 | } |
| 1122 | |
| 1123 | // If aContent/aOffset is inside (or at the edge of) the maintained |
| 1124 | // selection, or if it is on the "anchor" side of the maintained selection, |
| 1125 | // we need to do something. |
| 1126 | if ((*relToStart <= 0 && *relToEnd >= 0) || |
| 1127 | (*relToStart > 0 && aNormalSelection.GetDirection() == eDirNext) || |
| 1128 | (*relToEnd < 0 && aNormalSelection.GetDirection() == eDirPrevious)) { |
| 1129 | // Set the current range to the maintained range. |
| 1130 | aNormalSelection.ReplaceAnchorFocusRange(mRange); |
| 1131 | // Set the direction of the selection so that the anchor will be on the |
| 1132 | // far side of the maintained selection, relative to aContent/aOffset. |
| 1133 | aNormalSelection.SetDirection(*relToStart > 0 ? eDirPrevious : eDirNext); |
| 1134 | } |
| 1135 | } |
| 1136 | |
| 1137 | void nsFrameSelection::MaintainedRange::AdjustContentOffsets( |
| 1138 | nsIFrame::ContentOffsets& aOffsets, StopAtScroller aStopAtScroller) const { |
| 1139 | // Adjust offsets according to maintained amount |
| 1140 | if (mRange && mAmount != eSelectNoAmount) { |
| 1141 | nsINode* rangenode = mRange->GetStartContainer(); |
| 1142 | int32_t rangeOffset = mRange->StartOffset(); |
| 1143 | const Maybe<int32_t> relativePosition = nsContentUtils::ComparePoints( |
| 1144 | rangenode, rangeOffset, aOffsets.content, aOffsets.offset); |
| 1145 | if (NS_WARN_IF(!relativePosition)NS_warn_if_impl(!relativePosition, "!relativePosition", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1145)) { |
| 1146 | // Potentially handle this properly when Selection across Shadow DOM |
| 1147 | // boundary is implemented |
| 1148 | // (https://bugzilla.mozilla.org/show_bug.cgi?id=1607497). |
| 1149 | return; |
| 1150 | } |
| 1151 | |
| 1152 | nsDirection direction = *relativePosition > 0 ? eDirPrevious : eDirNext; |
| 1153 | nsSelectionAmount amount = mAmount; |
| 1154 | if (amount == eSelectBeginLine && direction == eDirNext) { |
| 1155 | amount = eSelectEndLine; |
| 1156 | } |
| 1157 | |
| 1158 | uint32_t offset; |
| 1159 | nsIFrame* frame = SelectionMovementUtils::GetFrameForNodeOffset( |
| 1160 | aOffsets.content, aOffsets.offset, CaretAssociationHint::After, |
| 1161 | &offset); |
| 1162 | |
| 1163 | PeekOffsetOptions peekOffsetOptions{}; |
| 1164 | if (aStopAtScroller == StopAtScroller::Yes) { |
| 1165 | peekOffsetOptions += PeekOffsetOption::StopAtScroller; |
| 1166 | } |
| 1167 | if (frame && amount == eSelectWord && direction == eDirPrevious) { |
| 1168 | // To avoid selecting the previous word when at start of word, |
| 1169 | // first move one character forward. |
| 1170 | PeekOffsetStruct charPos(eSelectCharacter, eDirNext, |
| 1171 | static_cast<int32_t>(offset), nsPoint(0, 0), |
| 1172 | peekOffsetOptions); |
| 1173 | if (NS_SUCCEEDED(frame->PeekOffset(&charPos))((bool)(__builtin_expect(!!(!NS_FAILED_impl(frame->PeekOffset (&charPos))), 1)))) { |
| 1174 | frame = charPos.mResultFrame; |
| 1175 | offset = charPos.mContentOffset; |
| 1176 | } |
| 1177 | } |
| 1178 | |
| 1179 | PeekOffsetStruct pos(amount, direction, static_cast<int32_t>(offset), |
| 1180 | nsPoint(0, 0), peekOffsetOptions); |
| 1181 | if (frame && NS_SUCCEEDED(frame->PeekOffset(&pos))((bool)(__builtin_expect(!!(!NS_FAILED_impl(frame->PeekOffset (&pos))), 1))) && pos.mResultContent) { |
| 1182 | aOffsets.content = pos.mResultContent; |
| 1183 | aOffsets.offset = pos.mContentOffset; |
| 1184 | } |
| 1185 | } |
| 1186 | } |
| 1187 | |
| 1188 | void nsFrameSelection::MaintainedRange::MaintainAnchorFocusRange( |
| 1189 | const Selection& aNormalSelection, const nsSelectionAmount aAmount) { |
| 1190 | MOZ_ASSERT(aNormalSelection.Type() == SelectionType::eNormal)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNormalSelection.Type() == SelectionType::eNormal)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNormalSelection.Type() == SelectionType::eNormal))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNormalSelection.Type() == SelectionType::eNormal" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1190); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNormalSelection.Type() == SelectionType::eNormal" ")"); do { *((volatile int*)__null) = 1190; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1191 | |
| 1192 | mAmount = aAmount; |
| 1193 | |
| 1194 | const nsRange* anchorFocusRange = aNormalSelection.GetAnchorFocusRange(); |
| 1195 | if (anchorFocusRange && aAmount != eSelectNoAmount) { |
| 1196 | mRange = anchorFocusRange->CloneRange(); |
| 1197 | return; |
| 1198 | } |
| 1199 | |
| 1200 | mRange = nullptr; |
| 1201 | } |
| 1202 | |
| 1203 | nsresult nsFrameSelection::HandleClick(nsIContent* aNewFocus, |
| 1204 | uint32_t aContentOffset, |
| 1205 | uint32_t aContentEndOffset, |
| 1206 | const FocusMode aFocusMode, |
| 1207 | CaretAssociationHint aHint) { |
| 1208 | if (!aNewFocus) { |
| 1209 | return NS_ERROR_INVALID_ARG; |
| 1210 | } |
| 1211 | |
| 1212 | if (MOZ_LOG_TEST(sFrameSelectionLog, LogLevel::Debug)(__builtin_expect(!!(mozilla::detail::log_test(sFrameSelectionLog , LogLevel::Debug)), 0))) { |
| 1213 | const Selection& sel = NormalSelection(); |
| 1214 | MOZ_LOG(sFrameSelectionLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = sFrameSelectionLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "%s: selection=%p, new focus=%p, offsets=(%u,%u), focus mode=%i" , __FUNCTION__, &sel, aNewFocus, aContentOffset, aContentEndOffset , static_cast<int>(aFocusMode)); } } while (0) |
| 1215 | ("%s: selection=%p, new focus=%p, offsets=(%u,%u), focus mode=%i",do { const ::mozilla::LogModule* moz_real_module = sFrameSelectionLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "%s: selection=%p, new focus=%p, offsets=(%u,%u), focus mode=%i" , __FUNCTION__, &sel, aNewFocus, aContentOffset, aContentEndOffset , static_cast<int>(aFocusMode)); } } while (0) |
| 1216 | __FUNCTION__, &sel, aNewFocus, aContentOffset, aContentEndOffset,do { const ::mozilla::LogModule* moz_real_module = sFrameSelectionLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "%s: selection=%p, new focus=%p, offsets=(%u,%u), focus mode=%i" , __FUNCTION__, &sel, aNewFocus, aContentOffset, aContentEndOffset , static_cast<int>(aFocusMode)); } } while (0) |
| 1217 | static_cast<int>(aFocusMode)))do { const ::mozilla::LogModule* moz_real_module = sFrameSelectionLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "%s: selection=%p, new focus=%p, offsets=(%u,%u), focus mode=%i" , __FUNCTION__, &sel, aNewFocus, aContentOffset, aContentEndOffset , static_cast<int>(aFocusMode)); } } while (0); |
| 1218 | } |
| 1219 | |
| 1220 | mDesiredCaretPos.Invalidate(); |
| 1221 | |
| 1222 | if (aFocusMode != FocusMode::kExtendSelection) { |
| 1223 | mMaintainedRange.mRange = nullptr; |
| 1224 | if (!NodeIsInLimiters(aNewFocus)) { |
| 1225 | mLimiters.mAncestorLimiter = nullptr; |
| 1226 | } |
| 1227 | } |
| 1228 | |
| 1229 | // Don't take focus when dragging off of a table |
| 1230 | if (!mTableSelection.mDragSelectingCells) { |
| 1231 | BidiLevelFromClick(aNewFocus, aContentOffset); |
| 1232 | SetChangeReasons(nsISelectionListener::MOUSEDOWN_REASON + |
| 1233 | nsISelectionListener::DRAG_REASON); |
| 1234 | |
| 1235 | RefPtr<Selection> selection = &NormalSelection(); |
| 1236 | |
| 1237 | if (aFocusMode == FocusMode::kExtendSelection) { |
| 1238 | mMaintainedRange.AdjustNormalSelection(aNewFocus, aContentOffset, |
| 1239 | *selection); |
| 1240 | } |
| 1241 | |
| 1242 | AutoPrepareFocusRange prep(selection, |
| 1243 | aFocusMode == FocusMode::kMultiRangeSelection); |
| 1244 | return TakeFocus(*aNewFocus, aContentOffset, aContentEndOffset, aHint, |
| 1245 | aFocusMode); |
| 1246 | } |
| 1247 | |
| 1248 | return NS_OK; |
| 1249 | } |
| 1250 | |
| 1251 | void nsFrameSelection::HandleDrag(nsIFrame* aFrame, const nsPoint& aPoint) { |
| 1252 | if (!aFrame || !mPresShell) { |
| 1253 | return; |
| 1254 | } |
| 1255 | |
| 1256 | nsresult result; |
| 1257 | nsIFrame* newFrame = 0; |
| 1258 | nsPoint newPoint; |
| 1259 | |
| 1260 | result = ConstrainFrameAndPointToAnchorSubtree(aFrame, aPoint, &newFrame, |
| 1261 | newPoint); |
| 1262 | if (NS_FAILED(result)((bool)(__builtin_expect(!!(NS_FAILED_impl(result)), 0)))) { |
| 1263 | return; |
| 1264 | } |
| 1265 | if (!newFrame) { |
| 1266 | return; |
| 1267 | } |
| 1268 | |
| 1269 | nsIFrame::ContentOffsets offsets = |
| 1270 | newFrame->GetContentOffsetsFromPoint(newPoint); |
| 1271 | if (!offsets.content) { |
| 1272 | return; |
| 1273 | } |
| 1274 | |
| 1275 | RefPtr<Selection> selection = &NormalSelection(); |
| 1276 | if (newFrame->IsSelected()) { |
| 1277 | // `MOZ_KnownLive` required because of |
| 1278 | // https://bugzilla.mozilla.org/show_bug.cgi?id=1636889. |
| 1279 | mMaintainedRange.AdjustNormalSelection(MOZ_KnownLive(offsets.content)(offsets.content), |
| 1280 | offsets.offset, *selection); |
| 1281 | } |
| 1282 | |
| 1283 | mMaintainedRange.AdjustContentOffsets( |
| 1284 | offsets, mLimiters.mLimiter ? MaintainedRange::StopAtScroller::Yes |
| 1285 | : MaintainedRange::StopAtScroller::No); |
| 1286 | |
| 1287 | // TODO: no click has happened, rename `HandleClick`. |
| 1288 | HandleClick(MOZ_KnownLive(offsets.content)(offsets.content) /* bug 1636889 */, offsets.offset, |
| 1289 | offsets.offset, FocusMode::kExtendSelection, offsets.associate); |
| 1290 | } |
| 1291 | |
| 1292 | nsresult nsFrameSelection::StartAutoScrollTimer(nsIFrame* aFrame, |
| 1293 | const nsPoint& aPoint, |
| 1294 | uint32_t aDelay) { |
| 1295 | RefPtr<Selection> selection = &NormalSelection(); |
| 1296 | return selection->StartAutoScrollTimer(aFrame, aPoint, aDelay); |
| 1297 | } |
| 1298 | |
| 1299 | void nsFrameSelection::StopAutoScrollTimer() { |
| 1300 | Selection& sel = NormalSelection(); |
| 1301 | sel.StopAutoScrollTimer(); |
| 1302 | } |
| 1303 | |
| 1304 | // static |
| 1305 | nsINode* nsFrameSelection::TableSelection::IsContentInActivelyEditableTableCell( |
| 1306 | nsPresContext* aContext, nsIContent* aContent) { |
| 1307 | if (!aContext) { |
| 1308 | return nullptr; |
| 1309 | } |
| 1310 | |
| 1311 | RefPtr<HTMLEditor> htmlEditor = nsContentUtils::GetHTMLEditor(aContext); |
| 1312 | if (!htmlEditor) { |
| 1313 | return nullptr; |
| 1314 | } |
| 1315 | |
| 1316 | nsINode* inclusiveTableCellAncestor = |
| 1317 | GetClosestInclusiveTableCellAncestor(aContent); |
| 1318 | if (!inclusiveTableCellAncestor) { |
| 1319 | return nullptr; |
| 1320 | } |
| 1321 | |
| 1322 | const Element* editingHost = htmlEditor->ComputeEditingHost(); |
| 1323 | if (!editingHost) { |
| 1324 | return nullptr; |
| 1325 | } |
| 1326 | |
| 1327 | const bool editableCell = |
| 1328 | inclusiveTableCellAncestor->IsInclusiveDescendantOf(editingHost); |
| 1329 | return editableCell ? inclusiveTableCellAncestor : nullptr; |
| 1330 | } |
| 1331 | |
| 1332 | namespace { |
| 1333 | struct ParentAndOffset { |
| 1334 | explicit ParentAndOffset(const nsINode& aNode) |
| 1335 | : mParent{aNode.GetParent()}, |
| 1336 | mOffset{mParent ? mParent->ComputeIndexOf_Deprecated(&aNode) : 0} {} |
| 1337 | |
| 1338 | nsINode* mParent; |
| 1339 | |
| 1340 | // 0, if there's no parent. |
| 1341 | int32_t mOffset; |
| 1342 | }; |
| 1343 | |
| 1344 | } // namespace |
| 1345 | /** |
| 1346 | hard to go from nodes to frames, easy the other way! |
| 1347 | */ |
| 1348 | nsresult nsFrameSelection::TakeFocus(nsIContent& aNewFocus, |
| 1349 | uint32_t aContentOffset, |
| 1350 | uint32_t aContentEndOffset, |
| 1351 | CaretAssociationHint aHint, |
| 1352 | const FocusMode aFocusMode) { |
| 1353 | NS_ENSURE_STATE(mPresShell)do { if ((__builtin_expect(!!(!(mPresShell)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mPresShell" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1353); return NS_ERROR_UNEXPECTED; } } while (false); |
| 1354 | |
| 1355 | if (!NodeIsInLimiters(&aNewFocus)) { |
| 1356 | return NS_ERROR_FAILURE; |
| 1357 | } |
| 1358 | |
| 1359 | MOZ_LOG(sFrameSelectionLog, LogLevel::Verbose,do { const ::mozilla::LogModule* moz_real_module = sFrameSelectionLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "%s: new focus=%p, offsets=(%u, %u), hint=%i, focusMode=%i" , __FUNCTION__, &aNewFocus, aContentOffset, aContentEndOffset , static_cast<int>(aHint), static_cast<int>(aFocusMode )); } } while (0) |
| 1360 | ("%s: new focus=%p, offsets=(%u, %u), hint=%i, focusMode=%i",do { const ::mozilla::LogModule* moz_real_module = sFrameSelectionLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "%s: new focus=%p, offsets=(%u, %u), hint=%i, focusMode=%i" , __FUNCTION__, &aNewFocus, aContentOffset, aContentEndOffset , static_cast<int>(aHint), static_cast<int>(aFocusMode )); } } while (0) |
| 1361 | __FUNCTION__, &aNewFocus, aContentOffset, aContentEndOffset,do { const ::mozilla::LogModule* moz_real_module = sFrameSelectionLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "%s: new focus=%p, offsets=(%u, %u), hint=%i, focusMode=%i" , __FUNCTION__, &aNewFocus, aContentOffset, aContentEndOffset , static_cast<int>(aHint), static_cast<int>(aFocusMode )); } } while (0) |
| 1362 | static_cast<int>(aHint), static_cast<int>(aFocusMode)))do { const ::mozilla::LogModule* moz_real_module = sFrameSelectionLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Verbose)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Verbose, "%s: new focus=%p, offsets=(%u, %u), hint=%i, focusMode=%i" , __FUNCTION__, &aNewFocus, aContentOffset, aContentEndOffset , static_cast<int>(aHint), static_cast<int>(aFocusMode )); } } while (0); |
| 1363 | |
| 1364 | mPresShell->FrameSelectionWillTakeFocus(*this); |
| 1365 | |
| 1366 | // Clear all table selection data |
| 1367 | mTableSelection.mMode = TableSelectionMode::None; |
| 1368 | mTableSelection.mDragSelectingCells = false; |
| 1369 | mTableSelection.mStartSelectedCell = nullptr; |
| 1370 | mTableSelection.mEndSelectedCell = nullptr; |
| 1371 | mTableSelection.mAppendStartSelectedCell = nullptr; |
| 1372 | mCaret.mHint = aHint; |
| 1373 | |
| 1374 | RefPtr<Selection> selection = &NormalSelection(); |
| 1375 | |
| 1376 | Maybe<Selection::AutoUserInitiated> userSelect; |
| 1377 | if (IsUserSelectionReason()) { |
| 1378 | userSelect.emplace(selection); |
| 1379 | } |
| 1380 | |
| 1381 | // traverse through document and unselect crap here |
| 1382 | switch (aFocusMode) { |
| 1383 | case FocusMode::kCollapseToNewPoint: |
| 1384 | [[fallthrough]]; |
| 1385 | case FocusMode::kMultiRangeSelection: { |
| 1386 | // single click? setting cursor down |
| 1387 | const Batching saveBatching = |
| 1388 | mBatching; // hack to use the collapse code. |
| 1389 | mBatching.mCounter = 1; |
| 1390 | |
| 1391 | if (aFocusMode == FocusMode::kMultiRangeSelection) { |
| 1392 | // Remove existing collapsed ranges as there's no point in having |
| 1393 | // non-anchor/focus collapsed ranges. |
| 1394 | selection->RemoveCollapsedRanges(); |
| 1395 | |
| 1396 | ErrorResult error; |
| 1397 | RefPtr<nsRange> newRange = nsRange::Create( |
| 1398 | &aNewFocus, aContentOffset, &aNewFocus, aContentOffset, error); |
| 1399 | if (NS_WARN_IF(error.Failed())NS_warn_if_impl(error.Failed(), "error.Failed()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1399)) { |
| 1400 | return error.StealNSResult(); |
| 1401 | } |
| 1402 | MOZ_ASSERT(newRange)do { static_assert( mozilla::detail::AssertionConditionType< decltype(newRange)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(newRange))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("newRange", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1402); AnnotateMozCrashReason("MOZ_ASSERT" "(" "newRange" ")" ); do { *((volatile int*)__null) = 1402; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1403 | selection->AddRangeAndSelectFramesAndNotifyListeners(*newRange, |
| 1404 | IgnoreErrors()); |
| 1405 | } else { |
| 1406 | bool oldDesiredPosSet = |
| 1407 | mDesiredCaretPos.mIsSet; // need to keep old desired |
| 1408 | // position if it was set. |
| 1409 | selection->CollapseInLimiter(&aNewFocus, aContentOffset); |
| 1410 | mDesiredCaretPos.mIsSet = |
| 1411 | oldDesiredPosSet; // now reset desired pos back. |
| 1412 | } |
| 1413 | |
| 1414 | mBatching = saveBatching; |
| 1415 | |
| 1416 | if (aContentEndOffset != aContentOffset) { |
| 1417 | selection->Extend(&aNewFocus, aContentEndOffset); |
| 1418 | } |
| 1419 | |
| 1420 | // find out if we are inside a table. if so, find out which one and which |
| 1421 | // cell once we do that, the next time we get a takefocus, check the |
| 1422 | // parent tree. if we are no longer inside same table ,cell then switch to |
| 1423 | // table selection mode. BUT only do this in an editor |
| 1424 | |
| 1425 | NS_ENSURE_STATE(mPresShell)do { if ((__builtin_expect(!!(!(mPresShell)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mPresShell" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1425); return NS_ERROR_UNEXPECTED; } } while (false); |
| 1426 | RefPtr<nsPresContext> context = mPresShell->GetPresContext(); |
| 1427 | mTableSelection.mClosestInclusiveTableCellAncestor = nullptr; |
| 1428 | if (nsINode* inclusiveTableCellAncestor = |
| 1429 | TableSelection::IsContentInActivelyEditableTableCell( |
| 1430 | context, &aNewFocus)) { |
| 1431 | mTableSelection.mClosestInclusiveTableCellAncestor = |
| 1432 | inclusiveTableCellAncestor; |
| 1433 | MOZ_LOG(sFrameSelectionLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = sFrameSelectionLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "%s: Collapsing into new cell", __FUNCTION__ ); } } while (0) |
| 1434 | ("%s: Collapsing into new cell", __FUNCTION__))do { const ::mozilla::LogModule* moz_real_module = sFrameSelectionLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "%s: Collapsing into new cell", __FUNCTION__ ); } } while (0); |
| 1435 | } |
| 1436 | |
| 1437 | break; |
| 1438 | } |
| 1439 | case FocusMode::kExtendSelection: { |
| 1440 | // Now update the range list: |
| 1441 | nsINode* inclusiveTableCellAncestor = |
| 1442 | GetClosestInclusiveTableCellAncestor(&aNewFocus); |
| 1443 | if (mTableSelection.mClosestInclusiveTableCellAncestor && |
| 1444 | inclusiveTableCellAncestor && |
| 1445 | inclusiveTableCellAncestor != |
| 1446 | mTableSelection |
| 1447 | .mClosestInclusiveTableCellAncestor) // switch to cell |
| 1448 | // selection mode |
| 1449 | { |
| 1450 | MOZ_LOG(sFrameSelectionLog, LogLevel::Debug,do { const ::mozilla::LogModule* moz_real_module = sFrameSelectionLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "%s: moving into new cell", __FUNCTION__); } } while (0) |
| 1451 | ("%s: moving into new cell", __FUNCTION__))do { const ::mozilla::LogModule* moz_real_module = sFrameSelectionLog ; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Debug)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Debug, "%s: moving into new cell", __FUNCTION__); } } while (0); |
| 1452 | |
| 1453 | WidgetMouseEvent event(false, eVoidEvent, nullptr, |
| 1454 | WidgetMouseEvent::eReal); |
| 1455 | |
| 1456 | // Start selecting in the cell we were in before |
| 1457 | ParentAndOffset parentAndOffset{ |
| 1458 | *mTableSelection.mClosestInclusiveTableCellAncestor}; |
| 1459 | if (parentAndOffset.mParent) { |
| 1460 | const nsresult result = HandleTableSelection( |
| 1461 | parentAndOffset.mParent, parentAndOffset.mOffset, |
| 1462 | TableSelectionMode::Cell, &event); |
| 1463 | 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/nsFrameSelection.cpp" , 1463)) { |
| 1464 | return result; |
| 1465 | } |
| 1466 | } |
| 1467 | |
| 1468 | // Find the parent of this new cell and extend selection to it |
| 1469 | parentAndOffset = ParentAndOffset{*inclusiveTableCellAncestor}; |
| 1470 | |
| 1471 | // XXXX We need to REALLY get the current key shift state |
| 1472 | // (we'd need to add event listener -- let's not bother for now) |
| 1473 | event.mModifiers &= ~MODIFIER_SHIFT; // aExtendSelection; |
| 1474 | if (parentAndOffset.mParent) { |
| 1475 | mTableSelection.mClosestInclusiveTableCellAncestor = |
| 1476 | inclusiveTableCellAncestor; |
| 1477 | // Continue selection into next cell |
| 1478 | const nsresult result = HandleTableSelection( |
| 1479 | parentAndOffset.mParent, parentAndOffset.mOffset, |
| 1480 | TableSelectionMode::Cell, &event); |
| 1481 | 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/nsFrameSelection.cpp" , 1481)) { |
| 1482 | return result; |
| 1483 | } |
| 1484 | } |
| 1485 | } else { |
| 1486 | // XXXX Problem: Shift+click in browser is appending text selection to |
| 1487 | // selected table!!! |
| 1488 | // is this the place to erase selected cells ????? |
| 1489 | uint32_t offset = |
| 1490 | (selection->GetDirection() == eDirNext && |
| 1491 | aContentEndOffset > aContentOffset) // didn't go far enough |
| 1492 | ? aContentEndOffset // this will only redraw the diff |
| 1493 | : aContentOffset; |
| 1494 | selection->Extend(&aNewFocus, offset); |
| 1495 | } |
| 1496 | break; |
| 1497 | } |
| 1498 | } |
| 1499 | |
| 1500 | // Be aware, the Selection instance may be destroyed after this call. |
| 1501 | return NotifySelectionListeners(SelectionType::eNormal); |
| 1502 | } |
| 1503 | |
| 1504 | UniquePtr<SelectionDetails> nsFrameSelection::LookUpSelection( |
| 1505 | nsIContent* aContent, int32_t aContentOffset, int32_t aContentLength, |
| 1506 | bool aSlowCheck) const { |
| 1507 | if (!aContent || !mPresShell) { |
| 1508 | return nullptr; |
| 1509 | } |
| 1510 | |
| 1511 | // TODO: Layout should use `uint32_t` for handling offset in DOM nodes |
| 1512 | // (for example: bug 1735262) |
| 1513 | MOZ_ASSERT(aContentOffset >= 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContentOffset >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContentOffset >= 0))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aContentOffset >= 0" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1513); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContentOffset >= 0" ")"); do { *((volatile int*)__null) = 1513; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1514 | MOZ_ASSERT(aContentLength >= 0)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aContentLength >= 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aContentLength >= 0))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aContentLength >= 0" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1514); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aContentLength >= 0" ")"); do { *((volatile int*)__null) = 1514; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1515 | if (MOZ_UNLIKELY(aContentOffset < 0)(__builtin_expect(!!(aContentOffset < 0), 0)) || MOZ_UNLIKELY(aContentLength < 0)(__builtin_expect(!!(aContentLength < 0), 0))) { |
| 1516 | return nullptr; |
| 1517 | } |
| 1518 | |
| 1519 | UniquePtr<SelectionDetails> details; |
| 1520 | |
| 1521 | for (size_t j = 0; j < std::size(mDomSelections); j++) { |
| 1522 | MOZ_ASSERT(mDomSelections[j])do { static_assert( mozilla::detail::AssertionConditionType< decltype(mDomSelections[j])>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mDomSelections[j]))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mDomSelections[j]" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1522); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mDomSelections[j]" ")"); do { *((volatile int*)__null) = 1522; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1523 | details = mDomSelections[j]->LookUpSelection( |
| 1524 | aContent, static_cast<uint32_t>(aContentOffset), |
| 1525 | static_cast<uint32_t>(aContentLength), std::move(details), |
| 1526 | kPresentSelectionTypes[j], aSlowCheck); |
| 1527 | } |
| 1528 | |
| 1529 | // This may seem counter intuitive at first. Highlight selections need to be |
| 1530 | // iterated from back to front: |
| 1531 | // |
| 1532 | // - `mHighlightSelections` is ordered by insertion, i.e. if two or more |
| 1533 | // highlights overlap, the latest must take precedence. |
| 1534 | // - however, the `LookupSelection()` algorithm reverses the order by setting |
| 1535 | // the current `details` as `mNext`. |
| 1536 | for (const auto& iter : Reversed(mHighlightSelections)) { |
| 1537 | details = iter.second()->LookUpSelection( |
| 1538 | aContent, static_cast<uint32_t>(aContentOffset), |
| 1539 | static_cast<uint32_t>(aContentLength), std::move(details), |
| 1540 | SelectionType::eHighlight, aSlowCheck); |
| 1541 | } |
| 1542 | |
| 1543 | return details; |
| 1544 | } |
| 1545 | |
| 1546 | void nsFrameSelection::SetDragState(bool aState) { |
| 1547 | if (mDragState == aState) { |
| 1548 | return; |
| 1549 | } |
| 1550 | |
| 1551 | mDragState = aState; |
| 1552 | |
| 1553 | if (!mDragState) { |
| 1554 | mTableSelection.mDragSelectingCells = false; |
| 1555 | // Notify that reason is mouse up. |
| 1556 | SetChangeReasons(nsISelectionListener::MOUSEUP_REASON); |
| 1557 | |
| 1558 | // flag is set to NotApplicable in `Selection::NotifySelectionListeners`. |
| 1559 | // since this function call is part of click event, this would immediately |
| 1560 | // reset the flag, rendering it useless. |
| 1561 | AutoRestore<ClickSelectionType> restoreClickSelectionType( |
| 1562 | mClickSelectionType); |
| 1563 | // Be aware, the Selection instance may be destroyed after this call. |
| 1564 | NotifySelectionListeners(SelectionType::eNormal); |
| 1565 | } |
| 1566 | } |
| 1567 | |
| 1568 | Selection* nsFrameSelection::GetSelection(SelectionType aSelectionType) const { |
| 1569 | int8_t index = GetIndexFromSelectionType(aSelectionType); |
| 1570 | if (index < 0) { |
| 1571 | return nullptr; |
| 1572 | } |
| 1573 | MOZ_ASSERT(mDomSelections[index])do { static_assert( mozilla::detail::AssertionConditionType< decltype(mDomSelections[index])>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mDomSelections[index]))), 0) )) { do { } while (false); MOZ_ReportAssertionFailure("mDomSelections[index]" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1573); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mDomSelections[index]" ")"); do { *((volatile int*)__null) = 1573; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1574 | return mDomSelections[index]; |
| 1575 | } |
| 1576 | |
| 1577 | void nsFrameSelection::AddHighlightSelection( |
| 1578 | nsAtom* aHighlightName, mozilla::dom::Highlight& aHighlight) { |
| 1579 | RefPtr<Selection> selection = |
| 1580 | aHighlight.CreateHighlightSelection(aHighlightName, this); |
| 1581 | if (auto iter = |
| 1582 | std::find_if(mHighlightSelections.begin(), mHighlightSelections.end(), |
| 1583 | [&aHighlightName](auto const& aElm) { |
| 1584 | return aElm.first() == aHighlightName; |
| 1585 | }); |
| 1586 | iter != mHighlightSelections.end()) { |
| 1587 | iter->second() = std::move(selection); |
| 1588 | } else { |
| 1589 | mHighlightSelections.AppendElement( |
| 1590 | CompactPair<RefPtr<nsAtom>, RefPtr<Selection>>(aHighlightName, |
| 1591 | std::move(selection))); |
| 1592 | } |
| 1593 | } |
| 1594 | |
| 1595 | void nsFrameSelection::RemoveHighlightSelection(nsAtom* aHighlightName) { |
| 1596 | if (auto iter = |
| 1597 | std::find_if(mHighlightSelections.begin(), mHighlightSelections.end(), |
| 1598 | [&aHighlightName](auto const& aElm) { |
| 1599 | return aElm.first() == aHighlightName; |
| 1600 | }); |
| 1601 | iter != mHighlightSelections.end()) { |
| 1602 | RefPtr<Selection> selection = iter->second(); |
| 1603 | selection->RemoveAllRanges(IgnoreErrors()); |
| 1604 | mHighlightSelections.RemoveElementAt(iter); |
| 1605 | } |
| 1606 | } |
| 1607 | |
| 1608 | void nsFrameSelection::AddHighlightSelectionRange( |
| 1609 | nsAtom* aHighlightName, mozilla::dom::Highlight& aHighlight, |
| 1610 | mozilla::dom::AbstractRange& aRange) { |
| 1611 | if (auto iter = |
| 1612 | std::find_if(mHighlightSelections.begin(), mHighlightSelections.end(), |
| 1613 | [&aHighlightName](auto const& aElm) { |
| 1614 | return aElm.first() == aHighlightName; |
| 1615 | }); |
| 1616 | iter != mHighlightSelections.end()) { |
| 1617 | RefPtr<Selection> selection = iter->second(); |
| 1618 | selection->AddHighlightRangeAndSelectFramesAndNotifyListeners(aRange); |
| 1619 | } else { |
| 1620 | // if the selection does not exist yet, add all of its ranges and exit. |
| 1621 | RefPtr<Selection> selection = |
| 1622 | aHighlight.CreateHighlightSelection(aHighlightName, this); |
| 1623 | mHighlightSelections.AppendElement( |
| 1624 | CompactPair<RefPtr<nsAtom>, RefPtr<Selection>>(aHighlightName, |
| 1625 | std::move(selection))); |
| 1626 | } |
| 1627 | } |
| 1628 | |
| 1629 | void nsFrameSelection::RemoveHighlightSelectionRange( |
| 1630 | nsAtom* aHighlightName, mozilla::dom::AbstractRange& aRange) { |
| 1631 | if (auto iter = |
| 1632 | std::find_if(mHighlightSelections.begin(), mHighlightSelections.end(), |
| 1633 | [&aHighlightName](auto const& aElm) { |
| 1634 | return aElm.first() == aHighlightName; |
| 1635 | }); |
| 1636 | iter != mHighlightSelections.end()) { |
| 1637 | // NOLINTNEXTLINE(performance-unnecessary-copy-initialization) |
| 1638 | RefPtr<Selection> selection = iter->second(); |
| 1639 | selection->RemoveRangeAndUnselectFramesAndNotifyListeners(aRange, |
| 1640 | IgnoreErrors()); |
| 1641 | } |
| 1642 | } |
| 1643 | |
| 1644 | nsresult nsFrameSelection::ScrollSelectionIntoView(SelectionType aSelectionType, |
| 1645 | SelectionRegion aRegion, |
| 1646 | int16_t aFlags) const { |
| 1647 | RefPtr<Selection> sel = GetSelection(aSelectionType); |
| 1648 | if (!sel) { |
| 1649 | return NS_ERROR_INVALID_ARG; |
| 1650 | } |
| 1651 | |
| 1652 | const auto vScroll = [&]() -> WhereToScroll { |
| 1653 | if (aFlags & nsISelectionController::SCROLL_VERTICAL_START) { |
| 1654 | return WhereToScroll::Start; |
| 1655 | } |
| 1656 | if (aFlags & nsISelectionController::SCROLL_VERTICAL_END) { |
| 1657 | return WhereToScroll::End; |
| 1658 | } |
| 1659 | if (aFlags & nsISelectionController::SCROLL_VERTICAL_CENTER) { |
| 1660 | return WhereToScroll::Center; |
| 1661 | } |
| 1662 | return WhereToScroll::Nearest; |
| 1663 | }(); |
| 1664 | |
| 1665 | auto mode = aFlags & nsISelectionController::SCROLL_SYNCHRONOUS |
| 1666 | ? SelectionScrollMode::SyncFlush |
| 1667 | : SelectionScrollMode::Async; |
| 1668 | |
| 1669 | auto scrollFlags = ScrollFlags::None; |
| 1670 | if (aFlags & nsISelectionController::SCROLL_OVERFLOW_HIDDEN) { |
| 1671 | scrollFlags |= ScrollFlags::ScrollOverflowHidden; |
| 1672 | } |
| 1673 | |
| 1674 | // After ScrollSelectionIntoView(), the pending notifications might be |
| 1675 | // flushed and PresShell/PresContext/Frames may be dead. See bug 418470. |
| 1676 | return sel->ScrollIntoView(aRegion, ScrollAxis(vScroll), ScrollAxis(), |
| 1677 | scrollFlags, mode); |
| 1678 | } |
| 1679 | |
| 1680 | nsresult nsFrameSelection::RepaintSelection(SelectionType aSelectionType) { |
| 1681 | RefPtr<Selection> sel = GetSelection(aSelectionType); |
| 1682 | if (!sel) { |
| 1683 | return NS_ERROR_INVALID_ARG; |
| 1684 | } |
| 1685 | NS_ENSURE_STATE(mPresShell)do { if ((__builtin_expect(!!(!(mPresShell)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mPresShell" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1685); return NS_ERROR_UNEXPECTED; } } while (false); |
| 1686 | |
| 1687 | // On macOS, update the selection cache to the new active selection |
| 1688 | // aka the current selection. |
| 1689 | #ifdef XP_MACOSX |
| 1690 | // Check that we're in the an active window and, if this is Web content, |
| 1691 | // in the frontmost tab. |
| 1692 | Document* doc = mPresShell->GetDocument(); |
| 1693 | if (doc && IsInActiveTab(doc) && aSelectionType == SelectionType::eNormal) { |
| 1694 | UpdateSelectionCacheOnRepaintSelection(sel); |
| 1695 | } |
| 1696 | #endif |
| 1697 | return sel->Repaint(mPresShell->GetPresContext()); |
| 1698 | } |
| 1699 | |
| 1700 | nsIFrame* nsFrameSelection::GetFrameToPageSelect() const { |
| 1701 | if (NS_WARN_IF(!mPresShell)NS_warn_if_impl(!mPresShell, "!mPresShell", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1701)) { |
| 1702 | return nullptr; |
| 1703 | } |
| 1704 | |
| 1705 | nsIFrame* rootFrameToSelect; |
| 1706 | if (mLimiters.mLimiter) { |
| 1707 | rootFrameToSelect = mLimiters.mLimiter->GetPrimaryFrame(); |
| 1708 | if (NS_WARN_IF(!rootFrameToSelect)NS_warn_if_impl(!rootFrameToSelect, "!rootFrameToSelect", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1708)) { |
| 1709 | return nullptr; |
| 1710 | } |
| 1711 | } else if (mLimiters.mAncestorLimiter) { |
| 1712 | rootFrameToSelect = mLimiters.mAncestorLimiter->GetPrimaryFrame(); |
| 1713 | if (NS_WARN_IF(!rootFrameToSelect)NS_warn_if_impl(!rootFrameToSelect, "!rootFrameToSelect", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1713)) { |
| 1714 | return nullptr; |
| 1715 | } |
| 1716 | } else { |
| 1717 | rootFrameToSelect = mPresShell->GetRootScrollContainerFrame(); |
| 1718 | if (NS_WARN_IF(!rootFrameToSelect)NS_warn_if_impl(!rootFrameToSelect, "!rootFrameToSelect", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1718)) { |
| 1719 | return nullptr; |
| 1720 | } |
| 1721 | } |
| 1722 | |
| 1723 | nsCOMPtr<nsIContent> contentToSelect = mPresShell->GetContentForScrolling(); |
| 1724 | if (contentToSelect) { |
| 1725 | // If there is selected content, look for nearest and vertical scrollable |
| 1726 | // parent under the root frame. |
| 1727 | for (nsIFrame* frame = contentToSelect->GetPrimaryFrame(); |
| 1728 | frame && frame != rootFrameToSelect; frame = frame->GetParent()) { |
| 1729 | ScrollContainerFrame* scrollContainerFrame = do_QueryFrame(frame); |
| 1730 | if (!scrollContainerFrame) { |
| 1731 | continue; |
| 1732 | } |
| 1733 | ScrollStyles scrollStyles = scrollContainerFrame->GetScrollStyles(); |
| 1734 | if (scrollStyles.mVertical == StyleOverflow::Hidden) { |
| 1735 | continue; |
| 1736 | } |
| 1737 | layers::ScrollDirections directions = |
| 1738 | scrollContainerFrame->GetAvailableScrollingDirections(); |
| 1739 | if (directions.contains(layers::ScrollDirection::eVertical)) { |
| 1740 | // If there is sub scrollable frame, let's use its page size to select. |
| 1741 | return frame; |
| 1742 | } |
| 1743 | } |
| 1744 | } |
| 1745 | // Otherwise, i.e., there is no scrollable frame or only the root frame is |
| 1746 | // scrollable, let's return the root frame because Shift + PageUp/PageDown |
| 1747 | // should expand the selection in the root content even if it's not |
| 1748 | // scrollable. |
| 1749 | return rootFrameToSelect; |
| 1750 | } |
| 1751 | |
| 1752 | nsresult nsFrameSelection::PageMove(bool aForward, bool aExtend, |
| 1753 | nsIFrame* aFrame, |
| 1754 | SelectionIntoView aSelectionIntoView) { |
| 1755 | MOZ_ASSERT(aFrame)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aFrame)>::isValid, "invalid assertion condition") ; if ((__builtin_expect(!!(!(!!(aFrame))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aFrame", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1755); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aFrame" ")" ); do { *((volatile int*)__null) = 1755; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1756 | |
| 1757 | // expected behavior for PageMove is to scroll AND move the caret |
| 1758 | // and remain relative position of the caret in view. see Bug 4302. |
| 1759 | |
| 1760 | // Get the scroll container frame. If aFrame is not scrollable, this is |
| 1761 | // nullptr. |
| 1762 | ScrollContainerFrame* scrollContainerFrame = aFrame->GetScrollTargetFrame(); |
| 1763 | // Get the scrolled frame. If aFrame is not scrollable, this is aFrame |
| 1764 | // itself. |
| 1765 | nsIFrame* scrolledFrame = |
| 1766 | scrollContainerFrame ? scrollContainerFrame->GetScrolledFrame() : aFrame; |
| 1767 | if (!scrolledFrame) { |
| 1768 | return NS_OK; |
| 1769 | } |
| 1770 | |
| 1771 | // find out where the caret is. |
| 1772 | // we should know mDesiredCaretPos.mValue value of nsFrameSelection, but I |
| 1773 | // havent seen that behavior in other windows applications yet. |
| 1774 | RefPtr<Selection> selection = &NormalSelection(); |
| 1775 | if (!selection) { |
| 1776 | return NS_OK; |
| 1777 | } |
| 1778 | |
| 1779 | nsRect caretPos; |
| 1780 | nsIFrame* caretFrame = nsCaret::GetGeometry(selection, &caretPos); |
| 1781 | if (!caretFrame) { |
| 1782 | return NS_OK; |
| 1783 | } |
| 1784 | |
| 1785 | // If the scrolled frame is outside of current selection limiter, |
| 1786 | // we need to scroll the frame but keep moving selection in the limiter. |
| 1787 | nsIFrame* frameToClick = scrolledFrame; |
| 1788 | if (!NodeIsInLimiters(scrolledFrame->GetContent())) { |
| 1789 | frameToClick = GetFrameToPageSelect(); |
| 1790 | if (NS_WARN_IF(!frameToClick)NS_warn_if_impl(!frameToClick, "!frameToClick", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1790)) { |
| 1791 | return NS_OK; |
| 1792 | } |
| 1793 | } |
| 1794 | |
| 1795 | if (scrollContainerFrame) { |
| 1796 | // If there is a scrollable frame, adjust pseudo-click position with page |
| 1797 | // scroll amount. |
| 1798 | // XXX This may scroll more than one page if ScrollSelectionIntoView is |
| 1799 | // called later because caret may not fully visible. E.g., if |
| 1800 | // clicking line will be visible only half height with scrolling |
| 1801 | // the frame, ScrollSelectionIntoView additionally scrolls to show |
| 1802 | // the caret entirely. |
| 1803 | if (aForward) { |
| 1804 | caretPos.y += scrollContainerFrame->GetPageScrollAmount().height; |
| 1805 | } else { |
| 1806 | caretPos.y -= scrollContainerFrame->GetPageScrollAmount().height; |
| 1807 | } |
| 1808 | } else { |
| 1809 | // Otherwise, adjust pseudo-click position with the frame size. |
| 1810 | if (aForward) { |
| 1811 | caretPos.y += frameToClick->GetSize().height; |
| 1812 | } else { |
| 1813 | caretPos.y -= frameToClick->GetSize().height; |
| 1814 | } |
| 1815 | } |
| 1816 | |
| 1817 | caretPos += caretFrame->GetOffsetTo(frameToClick); |
| 1818 | |
| 1819 | // get a content at desired location |
| 1820 | nsPoint desiredPoint; |
| 1821 | desiredPoint.x = caretPos.x; |
| 1822 | desiredPoint.y = caretPos.y + caretPos.height / 2; |
| 1823 | nsIFrame::ContentOffsets offsets = |
| 1824 | frameToClick->GetContentOffsetsFromPoint(desiredPoint); |
| 1825 | |
| 1826 | if (!offsets.content) { |
| 1827 | // XXX Do we need to handle ScrollSelectionIntoView in this case? |
| 1828 | return NS_OK; |
| 1829 | } |
| 1830 | |
| 1831 | // First, place the caret. |
| 1832 | bool selectionChanged; |
| 1833 | { |
| 1834 | // We don't want any script to run until we check whether selection is |
| 1835 | // modified by HandleClick. |
| 1836 | SelectionBatcher ensureNoSelectionChangeNotifications(selection, |
| 1837 | __FUNCTION__); |
| 1838 | |
| 1839 | RangeBoundary oldAnchor = selection->AnchorRef(); |
| 1840 | RangeBoundary oldFocus = selection->FocusRef(); |
| 1841 | |
| 1842 | const FocusMode focusMode = |
| 1843 | aExtend ? FocusMode::kExtendSelection : FocusMode::kCollapseToNewPoint; |
| 1844 | HandleClick(MOZ_KnownLive(offsets.content)(offsets.content) /* bug 1636889 */, |
| 1845 | offsets.offset, offsets.offset, focusMode, |
| 1846 | CaretAssociationHint::After); |
| 1847 | |
| 1848 | selectionChanged = selection->AnchorRef() != oldAnchor || |
| 1849 | selection->FocusRef() != oldFocus; |
| 1850 | } |
| 1851 | |
| 1852 | bool doScrollSelectionIntoView = !( |
| 1853 | aSelectionIntoView == SelectionIntoView::IfChanged && !selectionChanged); |
| 1854 | |
| 1855 | // Then, scroll the given frame one page. |
| 1856 | if (scrollContainerFrame) { |
| 1857 | // If we'll call ScrollSelectionIntoView later and selection wasn't |
| 1858 | // changed and we scroll outside of selection limiter, we shouldn't use |
| 1859 | // smooth scroll here because ScrollContainerFrame uses normal runnable, |
| 1860 | // but ScrollSelectionIntoView uses early runner and it cancels the |
| 1861 | // pending smooth scroll. Therefore, if we used smooth scroll in such |
| 1862 | // case, ScrollSelectionIntoView would scroll to show caret instead of |
| 1863 | // page scroll of an element outside selection limiter. |
| 1864 | ScrollMode scrollMode = doScrollSelectionIntoView && !selectionChanged && |
| 1865 | scrolledFrame != frameToClick |
| 1866 | ? ScrollMode::Instant |
| 1867 | : ScrollMode::Smooth; |
| 1868 | scrollContainerFrame->ScrollBy(nsIntPoint(0, aForward ? 1 : -1), |
| 1869 | ScrollUnit::PAGES, scrollMode); |
| 1870 | } |
| 1871 | |
| 1872 | // Finally, scroll selection into view if requested. |
| 1873 | if (!doScrollSelectionIntoView) { |
| 1874 | return NS_OK; |
| 1875 | } |
| 1876 | return ScrollSelectionIntoView(SelectionType::eNormal, |
| 1877 | nsISelectionController::SELECTION_FOCUS_REGION, |
| 1878 | nsISelectionController::SCROLL_SYNCHRONOUS); |
| 1879 | } |
| 1880 | |
| 1881 | nsresult nsFrameSelection::PhysicalMove(int16_t aDirection, int16_t aAmount, |
| 1882 | bool aExtend) { |
| 1883 | NS_ENSURE_STATE(mPresShell)do { if ((__builtin_expect(!!(!(mPresShell)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "mPresShell" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1883); return NS_ERROR_UNEXPECTED; } } while (false); |
| 1884 | // Flush out layout, since we need it to be up to date to do caret |
| 1885 | // positioning. |
| 1886 | OwningNonNull<PresShell> presShell(*mPresShell); |
| 1887 | presShell->FlushPendingNotifications(FlushType::Layout); |
| 1888 | |
| 1889 | if (!mPresShell) { |
| 1890 | return NS_OK; |
| 1891 | } |
| 1892 | |
| 1893 | // Check that parameters are safe |
| 1894 | if (aDirection < 0 || aDirection > 3 || aAmount < 0 || aAmount > 1) { |
| 1895 | return NS_ERROR_FAILURE; |
| 1896 | } |
| 1897 | |
| 1898 | nsPresContext* context = mPresShell->GetPresContext(); |
| 1899 | if (!context) { |
| 1900 | return NS_ERROR_FAILURE; |
| 1901 | } |
| 1902 | |
| 1903 | RefPtr<Selection> sel = &NormalSelection(); |
| 1904 | |
| 1905 | // Map the abstract movement amounts (0-1) to direction-specific |
| 1906 | // selection units. |
| 1907 | static const nsSelectionAmount inlineAmount[] = {eSelectCluster, eSelectWord}; |
| 1908 | static const nsSelectionAmount blockPrevAmount[] = {eSelectLine, |
| 1909 | eSelectBeginLine}; |
| 1910 | static const nsSelectionAmount blockNextAmount[] = {eSelectLine, |
| 1911 | eSelectEndLine}; |
| 1912 | |
| 1913 | struct PhysicalToLogicalMapping { |
| 1914 | nsDirection direction; |
| 1915 | const nsSelectionAmount* amounts; |
| 1916 | }; |
| 1917 | static const PhysicalToLogicalMapping verticalLR[4] = { |
| 1918 | {eDirPrevious, blockPrevAmount}, // left |
| 1919 | {eDirNext, blockNextAmount}, // right |
| 1920 | {eDirPrevious, inlineAmount}, // up |
| 1921 | {eDirNext, inlineAmount} // down |
| 1922 | }; |
| 1923 | static const PhysicalToLogicalMapping verticalRL[4] = { |
| 1924 | {eDirNext, blockNextAmount}, |
| 1925 | {eDirPrevious, blockPrevAmount}, |
| 1926 | {eDirPrevious, inlineAmount}, |
| 1927 | {eDirNext, inlineAmount}}; |
| 1928 | static const PhysicalToLogicalMapping horizontal[4] = { |
| 1929 | {eDirPrevious, inlineAmount}, |
| 1930 | {eDirNext, inlineAmount}, |
| 1931 | {eDirPrevious, blockPrevAmount}, |
| 1932 | {eDirNext, blockNextAmount}}; |
| 1933 | |
| 1934 | WritingMode wm; |
| 1935 | const PrimaryFrameData frameForFocus = |
| 1936 | sel->GetPrimaryFrameForCaretAtFocusNode(true); |
| 1937 | if (frameForFocus.mFrame) { |
| 1938 | // FYI: Setting the caret association hint was done during a call of |
| 1939 | // GetPrimaryFrameForCaretAtFocusNode. Therefore, this may not be intended |
| 1940 | // by the original author. |
| 1941 | sel->GetFrameSelection()->SetHint(frameForFocus.mHint); |
| 1942 | |
| 1943 | if (!frameForFocus.mFrame->Style()->IsTextCombined()) { |
| 1944 | wm = frameForFocus.mFrame->GetWritingMode(); |
| 1945 | } else { |
| 1946 | // Using different direction for horizontal-in-vertical would |
| 1947 | // make it hard to navigate via keyboard. Inherit the moving |
| 1948 | // direction from its parent. |
| 1949 | MOZ_ASSERT(frameForFocus.mFrame->IsTextFrame())do { static_assert( mozilla::detail::AssertionConditionType< decltype(frameForFocus.mFrame->IsTextFrame())>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(frameForFocus.mFrame->IsTextFrame()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("frameForFocus.mFrame->IsTextFrame()" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1949); AnnotateMozCrashReason("MOZ_ASSERT" "(" "frameForFocus.mFrame->IsTextFrame()" ")"); do { *((volatile int*)__null) = 1949; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1950 | wm = frameForFocus.mFrame->GetParent()->GetWritingMode(); |
| 1951 | MOZ_ASSERT(wm.IsVertical(),do { static_assert( mozilla::detail::AssertionConditionType< decltype(wm.IsVertical())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(wm.IsVertical()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("wm.IsVertical()" " (" "Text combined " "can only appear in vertical text" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1953); AnnotateMozCrashReason("MOZ_ASSERT" "(" "wm.IsVertical()" ") (" "Text combined " "can only appear in vertical text" ")" ); do { *((volatile int*)__null) = 1953; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1952 | "Text combined "do { static_assert( mozilla::detail::AssertionConditionType< decltype(wm.IsVertical())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(wm.IsVertical()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("wm.IsVertical()" " (" "Text combined " "can only appear in vertical text" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1953); AnnotateMozCrashReason("MOZ_ASSERT" "(" "wm.IsVertical()" ") (" "Text combined " "can only appear in vertical text" ")" ); do { *((volatile int*)__null) = 1953; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 1953 | "can only appear in vertical text")do { static_assert( mozilla::detail::AssertionConditionType< decltype(wm.IsVertical())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(wm.IsVertical()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("wm.IsVertical()" " (" "Text combined " "can only appear in vertical text" ")" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 1953); AnnotateMozCrashReason("MOZ_ASSERT" "(" "wm.IsVertical()" ") (" "Text combined " "can only appear in vertical text" ")" ); do { *((volatile int*)__null) = 1953; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 1954 | } |
| 1955 | } |
| 1956 | |
| 1957 | const PhysicalToLogicalMapping& mapping = |
| 1958 | wm.IsVertical() |
| 1959 | ? wm.IsVerticalLR() ? verticalLR[aDirection] : verticalRL[aDirection] |
| 1960 | : horizontal[aDirection]; |
| 1961 | |
| 1962 | nsresult rv = MoveCaret(mapping.direction, ExtendSelection(aExtend), |
| 1963 | mapping.amounts[aAmount], eVisual); |
| 1964 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 1965 | // If we tried to do a line move, but couldn't move in the given direction, |
| 1966 | // then we'll "promote" this to a line-edge move instead. |
| 1967 | if (mapping.amounts[aAmount] == eSelectLine) { |
| 1968 | rv = MoveCaret(mapping.direction, ExtendSelection(aExtend), |
| 1969 | mapping.amounts[aAmount + 1], eVisual); |
| 1970 | } |
| 1971 | // And if it was a next-word move that failed (which can happen when |
| 1972 | // eat_space_to_next_word is true, see bug 1153237), then just move forward |
| 1973 | // to the line-edge. |
| 1974 | else if (mapping.amounts[aAmount] == eSelectWord && |
| 1975 | mapping.direction == eDirNext) { |
| 1976 | rv = MoveCaret(eDirNext, ExtendSelection(aExtend), eSelectEndLine, |
| 1977 | eVisual); |
| 1978 | } |
| 1979 | } |
| 1980 | |
| 1981 | return rv; |
| 1982 | } |
| 1983 | |
| 1984 | nsresult nsFrameSelection::CharacterMove(bool aForward, bool aExtend) { |
| 1985 | return MoveCaret(aForward ? eDirNext : eDirPrevious, ExtendSelection(aExtend), |
| 1986 | eSelectCluster, eUsePrefStyle); |
| 1987 | } |
| 1988 | |
| 1989 | nsresult nsFrameSelection::WordMove(bool aForward, bool aExtend) { |
| 1990 | return MoveCaret(aForward ? eDirNext : eDirPrevious, ExtendSelection(aExtend), |
| 1991 | eSelectWord, eUsePrefStyle); |
| 1992 | } |
| 1993 | |
| 1994 | nsresult nsFrameSelection::LineMove(bool aForward, bool aExtend) { |
| 1995 | return MoveCaret(aForward ? eDirNext : eDirPrevious, ExtendSelection(aExtend), |
| 1996 | eSelectLine, eUsePrefStyle); |
| 1997 | } |
| 1998 | |
| 1999 | nsresult nsFrameSelection::IntraLineMove(bool aForward, bool aExtend) { |
| 2000 | if (aForward) { |
| 2001 | return MoveCaret(eDirNext, ExtendSelection(aExtend), eSelectEndLine, |
| 2002 | eLogical); |
| 2003 | } |
| 2004 | return MoveCaret(eDirPrevious, ExtendSelection(aExtend), eSelectBeginLine, |
| 2005 | eLogical); |
| 2006 | } |
| 2007 | |
| 2008 | // static |
| 2009 | template <typename RangeType> |
| 2010 | Result<RefPtr<RangeType>, nsresult> |
| 2011 | nsFrameSelection::CreateRangeExtendedToSomewhere( |
| 2012 | PresShell& aPresShell, |
| 2013 | const mozilla::LimitersAndCaretData& aLimitersAndCaretData, |
| 2014 | const AbstractRange& aRange, nsDirection aRangeDirection, |
| 2015 | nsDirection aExtendDirection, nsSelectionAmount aAmount, |
| 2016 | CaretMovementStyle aMovementStyle) { |
| 2017 | MOZ_ASSERT(aRangeDirection == eDirNext || aRangeDirection == eDirPrevious)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aRangeDirection == eDirNext || aRangeDirection == eDirPrevious )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aRangeDirection == eDirNext || aRangeDirection == eDirPrevious ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aRangeDirection == eDirNext || aRangeDirection == eDirPrevious" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2017); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aRangeDirection == eDirNext || aRangeDirection == eDirPrevious" ")"); do { *((volatile int*)__null) = 2017; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2018 | MOZ_ASSERT(aExtendDirection == eDirNext || aExtendDirection == eDirPrevious)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aExtendDirection == eDirNext || aExtendDirection == eDirPrevious )>::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aExtendDirection == eDirNext || aExtendDirection == eDirPrevious ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aExtendDirection == eDirNext || aExtendDirection == eDirPrevious" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2018); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aExtendDirection == eDirNext || aExtendDirection == eDirPrevious" ")"); do { *((volatile int*)__null) = 2018; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2019 | MOZ_ASSERT(aAmount == eSelectCharacter || aAmount == eSelectCluster ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aAmount == eSelectCharacter || aAmount == eSelectCluster || aAmount == eSelectWord || aAmount == eSelectBeginLine || aAmount == eSelectEndLine)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aAmount == eSelectCharacter || aAmount == eSelectCluster || aAmount == eSelectWord || aAmount == eSelectBeginLine || aAmount == eSelectEndLine))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aAmount == eSelectCharacter || aAmount == eSelectCluster || aAmount == eSelectWord || aAmount == eSelectBeginLine || aAmount == eSelectEndLine" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2021); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aAmount == eSelectCharacter || aAmount == eSelectCluster || aAmount == eSelectWord || aAmount == eSelectBeginLine || aAmount == eSelectEndLine" ")"); do { *((volatile int*)__null) = 2021; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2020 | aAmount == eSelectWord || aAmount == eSelectBeginLine ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aAmount == eSelectCharacter || aAmount == eSelectCluster || aAmount == eSelectWord || aAmount == eSelectBeginLine || aAmount == eSelectEndLine)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aAmount == eSelectCharacter || aAmount == eSelectCluster || aAmount == eSelectWord || aAmount == eSelectBeginLine || aAmount == eSelectEndLine))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aAmount == eSelectCharacter || aAmount == eSelectCluster || aAmount == eSelectWord || aAmount == eSelectBeginLine || aAmount == eSelectEndLine" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2021); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aAmount == eSelectCharacter || aAmount == eSelectCluster || aAmount == eSelectWord || aAmount == eSelectBeginLine || aAmount == eSelectEndLine" ")"); do { *((volatile int*)__null) = 2021; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2021 | aAmount == eSelectEndLine)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aAmount == eSelectCharacter || aAmount == eSelectCluster || aAmount == eSelectWord || aAmount == eSelectBeginLine || aAmount == eSelectEndLine)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aAmount == eSelectCharacter || aAmount == eSelectCluster || aAmount == eSelectWord || aAmount == eSelectBeginLine || aAmount == eSelectEndLine))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aAmount == eSelectCharacter || aAmount == eSelectCluster || aAmount == eSelectWord || aAmount == eSelectBeginLine || aAmount == eSelectEndLine" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2021); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aAmount == eSelectCharacter || aAmount == eSelectCluster || aAmount == eSelectWord || aAmount == eSelectBeginLine || aAmount == eSelectEndLine" ")"); do { *((volatile int*)__null) = 2021; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2022 | MOZ_ASSERT(aMovementStyle == eLogical || aMovementStyle == eVisual ||do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMovementStyle == eLogical || aMovementStyle == eVisual || aMovementStyle == eUsePrefStyle)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMovementStyle == eLogical || aMovementStyle == eVisual || aMovementStyle == eUsePrefStyle ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aMovementStyle == eLogical || aMovementStyle == eVisual || aMovementStyle == eUsePrefStyle" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2023); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMovementStyle == eLogical || aMovementStyle == eVisual || aMovementStyle == eUsePrefStyle" ")"); do { *((volatile int*)__null) = 2023; __attribute__((nomerge )) ::abort(); } while (false); } } while (false) |
| 2023 | aMovementStyle == eUsePrefStyle)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aMovementStyle == eLogical || aMovementStyle == eVisual || aMovementStyle == eUsePrefStyle)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aMovementStyle == eLogical || aMovementStyle == eVisual || aMovementStyle == eUsePrefStyle ))), 0))) { do { } while (false); MOZ_ReportAssertionFailure( "aMovementStyle == eLogical || aMovementStyle == eVisual || aMovementStyle == eUsePrefStyle" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2023); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aMovementStyle == eLogical || aMovementStyle == eVisual || aMovementStyle == eUsePrefStyle" ")"); do { *((volatile int*)__null) = 2023; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2024 | |
| 2025 | aPresShell.FlushPendingNotifications(FlushType::Layout); |
| 2026 | if (aPresShell.IsDestroying()) { |
| 2027 | return Err(NS_ERROR_FAILURE); |
| 2028 | } |
| 2029 | if (!aRange.IsPositioned()) { |
| 2030 | return Err(NS_ERROR_FAILURE); |
| 2031 | } |
| 2032 | const ForceEditableRegion forceEditableRegion = [&]() { |
| 2033 | if (aRange.GetStartContainer()->IsEditable()) { |
| 2034 | return ForceEditableRegion::Yes; |
| 2035 | } |
| 2036 | const auto* const element = Element::FromNode(aRange.GetStartContainer()); |
| 2037 | return element && element->State().HasState(ElementState::READWRITE) |
| 2038 | ? ForceEditableRegion::Yes |
| 2039 | : ForceEditableRegion::No; |
| 2040 | }(); |
| 2041 | Result<PeekOffsetOptions, nsresult> options = |
| 2042 | CreatePeekOffsetOptionsForCaretMove(aLimitersAndCaretData.mLimiter, |
| 2043 | forceEditableRegion, |
| 2044 | ExtendSelection::Yes, aMovementStyle); |
| 2045 | if (MOZ_UNLIKELY(options.isErr())(__builtin_expect(!!(options.isErr()), 0))) { |
| 2046 | return options.propagateErr(); |
| 2047 | } |
| 2048 | Result<RawRangeBoundary, nsresult> result = |
| 2049 | SelectionMovementUtils::MoveRangeBoundaryToSomewhere( |
| 2050 | aRangeDirection == eDirNext ? aRange.StartRef().AsRaw() |
| 2051 | : aRange.EndRef().AsRaw(), |
| 2052 | aExtendDirection, aLimitersAndCaretData.mCaretAssociationHint, |
| 2053 | aLimitersAndCaretData.mCaretBidiLevel, aAmount, options.unwrap(), |
| 2054 | // FIXME: mAncestorLimiter should always be an Element, but it's not |
| 2055 | // guaranteed at build time for now. |
| 2056 | Element::FromNodeOrNull(aLimitersAndCaretData.mAncestorLimiter)); |
| 2057 | if (result.isErr()) { |
| 2058 | return result.propagateErr(); |
| 2059 | } |
| 2060 | RefPtr<RangeType> range; |
| 2061 | RawRangeBoundary rangeBoundary = result.unwrap(); |
| 2062 | if (!rangeBoundary.IsSetAndValid()) { |
| 2063 | return range; |
| 2064 | } |
| 2065 | if (aExtendDirection == eDirPrevious) { |
| 2066 | range = RangeType::Create(rangeBoundary, aRange.EndRef(), IgnoreErrors()); |
| 2067 | } else { |
| 2068 | range = RangeType::Create(aRange.StartRef(), rangeBoundary, IgnoreErrors()); |
| 2069 | } |
| 2070 | return range; |
| 2071 | } |
| 2072 | |
| 2073 | //////////END FRAMESELECTION |
| 2074 | |
| 2075 | LazyLogModule gBatchLog("SelectionBatch"); |
| 2076 | |
| 2077 | void nsFrameSelection::StartBatchChanges(const char* aRequesterFuncName) { |
| 2078 | MOZ_LOG(gBatchLog, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = gBatchLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "%p%snsFrameSelection::StartBatchChanges(%s)" , this, std::string((mBatching.mCounter + 1) * 2, ' ').c_str( ), aRequesterFuncName); } } while (0) |
| 2079 | ("%p%snsFrameSelection::StartBatchChanges(%s)", this,do { const ::mozilla::LogModule* moz_real_module = gBatchLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "%p%snsFrameSelection::StartBatchChanges(%s)" , this, std::string((mBatching.mCounter + 1) * 2, ' ').c_str( ), aRequesterFuncName); } } while (0) |
| 2080 | std::string((mBatching.mCounter + 1) * 2, ' ').c_str(),do { const ::mozilla::LogModule* moz_real_module = gBatchLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "%p%snsFrameSelection::StartBatchChanges(%s)" , this, std::string((mBatching.mCounter + 1) * 2, ' ').c_str( ), aRequesterFuncName); } } while (0) |
| 2081 | aRequesterFuncName))do { const ::mozilla::LogModule* moz_real_module = gBatchLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "%p%snsFrameSelection::StartBatchChanges(%s)" , this, std::string((mBatching.mCounter + 1) * 2, ' ').c_str( ), aRequesterFuncName); } } while (0); |
| 2082 | mBatching.mCounter++; |
| 2083 | } |
| 2084 | |
| 2085 | void nsFrameSelection::EndBatchChanges(const char* aRequesterFuncName, |
| 2086 | int16_t aReasons) { |
| 2087 | MOZ_LOG(gBatchLog, LogLevel::Info,do { const ::mozilla::LogModule* moz_real_module = gBatchLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "%p%snsFrameSelection::EndBatchChanges (%s, %s)" , this, std::string(mBatching.mCounter * 2, ' ').c_str(), aRequesterFuncName , SelectionChangeReasonsToCString(aReasons).get()); } } while (0) |
| 2088 | ("%p%snsFrameSelection::EndBatchChanges (%s, %s)", this,do { const ::mozilla::LogModule* moz_real_module = gBatchLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "%p%snsFrameSelection::EndBatchChanges (%s, %s)" , this, std::string(mBatching.mCounter * 2, ' ').c_str(), aRequesterFuncName , SelectionChangeReasonsToCString(aReasons).get()); } } while (0) |
| 2089 | std::string(mBatching.mCounter * 2, ' ').c_str(), aRequesterFuncName,do { const ::mozilla::LogModule* moz_real_module = gBatchLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "%p%snsFrameSelection::EndBatchChanges (%s, %s)" , this, std::string(mBatching.mCounter * 2, ' ').c_str(), aRequesterFuncName , SelectionChangeReasonsToCString(aReasons).get()); } } while (0) |
| 2090 | SelectionChangeReasonsToCString(aReasons).get()))do { const ::mozilla::LogModule* moz_real_module = gBatchLog; if ((__builtin_expect(!!(mozilla::detail::log_test(moz_real_module , LogLevel::Info)), 0))) { mozilla::detail::log_print(moz_real_module , LogLevel::Info, "%p%snsFrameSelection::EndBatchChanges (%s, %s)" , this, std::string(mBatching.mCounter * 2, ' ').c_str(), aRequesterFuncName , SelectionChangeReasonsToCString(aReasons).get()); } } while (0); |
| 2091 | MOZ_ASSERT(mBatching.mCounter > 0, "Bad mBatching.mCounter")do { static_assert( mozilla::detail::AssertionConditionType< decltype(mBatching.mCounter > 0)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mBatching.mCounter > 0))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("mBatching.mCounter > 0" " (" "Bad mBatching.mCounter" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2091); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mBatching.mCounter > 0" ") (" "Bad mBatching.mCounter" ")"); do { *((volatile int*)__null ) = 2091; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 2092 | mBatching.mCounter--; |
| 2093 | |
| 2094 | if (mBatching.mCounter == 0) { |
| 2095 | AddChangeReasons(aReasons); |
| 2096 | mCaretMoveAmount = eSelectNoAmount; |
| 2097 | // Be aware, the Selection instance may be destroyed after this call, |
| 2098 | // hence make sure that this instance remains until the end of this call. |
| 2099 | RefPtr frameSelection = this; |
| 2100 | for (auto selectionType : kPresentSelectionTypes) { |
| 2101 | // This returns NS_ERROR_FAILURE if being called for a selection that is |
| 2102 | // not present. We don't care about that here, so we silently ignore it |
| 2103 | // and continue. |
| 2104 | Unused << NotifySelectionListeners(selectionType, IsBatchingEnd::Yes); |
| 2105 | } |
| 2106 | } |
| 2107 | } |
| 2108 | |
| 2109 | nsresult nsFrameSelection::NotifySelectionListeners( |
| 2110 | SelectionType aSelectionType, IsBatchingEnd aEndBatching) { |
| 2111 | if (RefPtr<Selection> selection = GetSelection(aSelectionType)) { |
| 2112 | if (aEndBatching == IsBatchingEnd::Yes && |
| 2113 | !selection->ChangesDuringBatching()) { |
| 2114 | return NS_OK; |
| 2115 | } |
| 2116 | selection->NotifySelectionListeners(); |
| 2117 | mCaretMoveAmount = eSelectNoAmount; |
| 2118 | return NS_OK; |
| 2119 | } |
| 2120 | return NS_ERROR_FAILURE; |
| 2121 | } |
| 2122 | |
| 2123 | // Start of Table Selection methods |
| 2124 | |
| 2125 | static bool IsCell(nsIContent* aContent) { |
| 2126 | return aContent->IsAnyOfHTMLElements(nsGkAtoms::td, nsGkAtoms::th); |
| 2127 | } |
| 2128 | |
| 2129 | // static |
| 2130 | nsITableCellLayout* nsFrameSelection::GetCellLayout( |
| 2131 | const nsIContent* aCellContent) { |
| 2132 | nsITableCellLayout* cellLayoutObject = |
| 2133 | do_QueryFrame(aCellContent->GetPrimaryFrame()); |
| 2134 | return cellLayoutObject; |
| 2135 | } |
| 2136 | |
| 2137 | nsresult nsFrameSelection::ClearNormalSelection() { |
| 2138 | RefPtr<Selection> selection = &NormalSelection(); |
| 2139 | ErrorResult err; |
| 2140 | selection->RemoveAllRanges(err); |
| 2141 | return err.StealNSResult(); |
| 2142 | } |
| 2143 | |
| 2144 | static nsIContent* GetFirstSelectedContent(const nsRange* aRange) { |
| 2145 | if (!aRange) { |
| 2146 | return nullptr; |
| 2147 | } |
| 2148 | |
| 2149 | MOZ_ASSERT(aRange->GetStartContainer(), "Must have start parent!")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aRange->GetStartContainer())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(aRange->GetStartContainer ()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure ("aRange->GetStartContainer()" " (" "Must have start parent!" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2149); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aRange->GetStartContainer()" ") (" "Must have start parent!" ")"); do { *((volatile int*) __null) = 2149; __attribute__((nomerge)) ::abort(); } while ( false); } } while (false); |
| 2150 | MOZ_ASSERT(aRange->GetStartContainer()->IsElement(), "Unexpected parent")do { static_assert( mozilla::detail::AssertionConditionType< decltype(aRange->GetStartContainer()->IsElement())>:: isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aRange->GetStartContainer()->IsElement()))), 0 ))) { do { } while (false); MOZ_ReportAssertionFailure("aRange->GetStartContainer()->IsElement()" " (" "Unexpected parent" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2150); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aRange->GetStartContainer()->IsElement()" ") (" "Unexpected parent" ")"); do { *((volatile int*)__null ) = 2150; __attribute__((nomerge)) ::abort(); } while (false) ; } } while (false); |
| 2151 | |
| 2152 | return aRange->GetChildAtStartOffset(); |
| 2153 | } |
| 2154 | |
| 2155 | // Table selection support. |
| 2156 | // TODO: Separate table methods into a separate nsITableSelection interface |
| 2157 | nsresult nsFrameSelection::HandleTableSelection(nsINode* aParentContent, |
| 2158 | int32_t aContentOffset, |
| 2159 | TableSelectionMode aTarget, |
| 2160 | WidgetMouseEvent* aMouseEvent) { |
| 2161 | RefPtr<Selection> selection = &NormalSelection(); |
| 2162 | return mTableSelection.HandleSelection(aParentContent, aContentOffset, |
| 2163 | aTarget, aMouseEvent, mDragState, |
| 2164 | *selection); |
| 2165 | } |
| 2166 | |
| 2167 | nsresult nsFrameSelection::TableSelection::HandleSelection( |
| 2168 | nsINode* aParentContent, int32_t aContentOffset, TableSelectionMode aTarget, |
| 2169 | WidgetMouseEvent* aMouseEvent, bool aDragState, |
| 2170 | Selection& aNormalSelection) { |
| 2171 | MOZ_ASSERT(aNormalSelection.Type() == SelectionType::eNormal)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNormalSelection.Type() == SelectionType::eNormal)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNormalSelection.Type() == SelectionType::eNormal))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNormalSelection.Type() == SelectionType::eNormal" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2171); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNormalSelection.Type() == SelectionType::eNormal" ")"); do { *((volatile int*)__null) = 2171; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2172 | |
| 2173 | NS_ENSURE_TRUE(aParentContent, NS_ERROR_NULL_POINTER)do { if ((__builtin_expect(!!(!(aParentContent)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aParentContent" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2173); return NS_ERROR_NULL_POINTER; } } while (false); |
| 2174 | NS_ENSURE_TRUE(aMouseEvent, NS_ERROR_NULL_POINTER)do { if ((__builtin_expect(!!(!(aMouseEvent)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aMouseEvent" ") failed" , nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2174); return NS_ERROR_NULL_POINTER; } } while (false); |
| 2175 | |
| 2176 | if (aDragState && mDragSelectingCells && |
| 2177 | aTarget == TableSelectionMode::Table) { |
| 2178 | // We were selecting cells and user drags mouse in table border or inbetween |
| 2179 | // cells, |
| 2180 | // just do nothing |
| 2181 | return NS_OK; |
| 2182 | } |
| 2183 | |
| 2184 | RefPtr<nsIContent> childContent = |
| 2185 | aParentContent->GetChildAt_Deprecated(aContentOffset); |
| 2186 | |
| 2187 | // When doing table selection, always set the direction to next so |
| 2188 | // we can be sure that anchorNode's offset always points to the |
| 2189 | // selected cell |
| 2190 | aNormalSelection.SetDirection(eDirNext); |
| 2191 | |
| 2192 | // Stack-class to wrap all table selection changes in |
| 2193 | // BeginBatchChanges() / EndBatchChanges() |
| 2194 | SelectionBatcher selectionBatcher(&aNormalSelection, __FUNCTION__); |
| 2195 | |
| 2196 | if (aDragState && mDragSelectingCells) { |
| 2197 | return HandleDragSelecting(aTarget, childContent, aMouseEvent, |
| 2198 | aNormalSelection); |
| 2199 | } |
| 2200 | |
| 2201 | return HandleMouseUpOrDown(aTarget, aDragState, childContent, aParentContent, |
| 2202 | aContentOffset, aMouseEvent, aNormalSelection); |
| 2203 | } |
| 2204 | |
| 2205 | class nsFrameSelection::TableSelection::RowAndColumnRelation { |
| 2206 | public: |
| 2207 | static Result<RowAndColumnRelation, nsresult> Create( |
| 2208 | const nsIContent* aFirst, const nsIContent* aSecond) { |
| 2209 | RowAndColumnRelation result; |
| 2210 | |
| 2211 | nsresult errorResult = |
| 2212 | GetCellIndexes(aFirst, result.mFirst.mRow, result.mFirst.mColumn); |
| 2213 | if (NS_FAILED(errorResult)((bool)(__builtin_expect(!!(NS_FAILED_impl(errorResult)), 0)) )) { |
| 2214 | return Err(errorResult); |
| 2215 | } |
| 2216 | |
| 2217 | errorResult = |
| 2218 | GetCellIndexes(aSecond, result.mSecond.mRow, result.mSecond.mColumn); |
| 2219 | if (NS_FAILED(errorResult)((bool)(__builtin_expect(!!(NS_FAILED_impl(errorResult)), 0)) )) { |
| 2220 | return Err(errorResult); |
| 2221 | } |
| 2222 | |
| 2223 | return result; |
| 2224 | } |
| 2225 | |
| 2226 | bool IsSameColumn() const { return mFirst.mColumn == mSecond.mColumn; } |
| 2227 | |
| 2228 | bool IsSameRow() const { return mFirst.mRow == mSecond.mRow; } |
| 2229 | |
| 2230 | private: |
| 2231 | RowAndColumnRelation() = default; |
| 2232 | |
| 2233 | struct RowAndColumn { |
| 2234 | int32_t mRow = 0; |
| 2235 | int32_t mColumn = 0; |
| 2236 | }; |
| 2237 | |
| 2238 | RowAndColumn mFirst; |
| 2239 | RowAndColumn mSecond; |
| 2240 | }; |
| 2241 | |
| 2242 | nsresult nsFrameSelection::TableSelection::HandleDragSelecting( |
| 2243 | TableSelectionMode aTarget, nsIContent* aChildContent, |
| 2244 | const WidgetMouseEvent* aMouseEvent, Selection& aNormalSelection) { |
| 2245 | // We are drag-selecting |
| 2246 | if (aTarget != TableSelectionMode::Table) { |
| 2247 | // If dragging in the same cell as last event, do nothing |
| 2248 | if (mEndSelectedCell == aChildContent) { |
| 2249 | return NS_OK; |
| 2250 | } |
| 2251 | |
| 2252 | #ifdef DEBUG_TABLE_SELECTION |
| 2253 | printf( |
| 2254 | " mStartSelectedCell = %p, " |
| 2255 | "mEndSelectedCell = %p, aChildContent = %p " |
| 2256 | "\n", |
| 2257 | mStartSelectedCell.get(), mEndSelectedCell.get(), aChildContent); |
| 2258 | #endif |
| 2259 | // aTarget can be any "cell mode", |
| 2260 | // so we can easily drag-select rows and columns |
| 2261 | // Once we are in row or column mode, |
| 2262 | // we can drift into any cell to stay in that mode |
| 2263 | // even if aTarget = TableSelectionMode::Cell |
| 2264 | |
| 2265 | if (mMode == TableSelectionMode::Row || |
| 2266 | mMode == TableSelectionMode::Column) { |
| 2267 | if (mEndSelectedCell) { |
| 2268 | Result<RowAndColumnRelation, nsresult> rowAndColumnRelation = |
| 2269 | RowAndColumnRelation::Create(mEndSelectedCell, aChildContent); |
| 2270 | |
| 2271 | if (rowAndColumnRelation.isErr()) { |
| 2272 | return rowAndColumnRelation.unwrapErr(); |
| 2273 | } |
| 2274 | |
| 2275 | if ((mMode == TableSelectionMode::Row && |
| 2276 | rowAndColumnRelation.inspect().IsSameRow()) || |
| 2277 | (mMode == TableSelectionMode::Column && |
| 2278 | rowAndColumnRelation.inspect().IsSameColumn())) { |
| 2279 | return NS_OK; |
| 2280 | } |
| 2281 | } |
| 2282 | #ifdef DEBUG_TABLE_SELECTION |
| 2283 | printf(" Dragged into a new column or row\n"); |
| 2284 | #endif |
| 2285 | // Continue dragging row or column selection |
| 2286 | |
| 2287 | return SelectRowOrColumn(aChildContent, aNormalSelection); |
| 2288 | } |
| 2289 | if (mMode == TableSelectionMode::Cell) { |
| 2290 | #ifdef DEBUG_TABLE_SELECTION |
| 2291 | printf("HandleTableSelection: Dragged into a new cell\n"); |
| 2292 | #endif |
| 2293 | // Trick for quick selection of rows and columns |
| 2294 | // Hold down shift, then start selecting in one direction |
| 2295 | // If next cell dragged into is in same row, select entire row, |
| 2296 | // if next cell is in same column, select entire column |
| 2297 | if (mStartSelectedCell && aMouseEvent->IsShift()) { |
| 2298 | Result<RowAndColumnRelation, nsresult> rowAndColumnRelation = |
| 2299 | RowAndColumnRelation::Create(mStartSelectedCell, aChildContent); |
| 2300 | if (rowAndColumnRelation.isErr()) { |
| 2301 | return rowAndColumnRelation.unwrapErr(); |
| 2302 | } |
| 2303 | |
| 2304 | if (rowAndColumnRelation.inspect().IsSameRow() || |
| 2305 | rowAndColumnRelation.inspect().IsSameColumn()) { |
| 2306 | // Force new selection block |
| 2307 | mStartSelectedCell = nullptr; |
| 2308 | aNormalSelection.RemoveAllRanges(IgnoreErrors()); |
| 2309 | |
| 2310 | if (rowAndColumnRelation.inspect().IsSameRow()) { |
| 2311 | mMode = TableSelectionMode::Row; |
| 2312 | } else { |
| 2313 | mMode = TableSelectionMode::Column; |
| 2314 | } |
| 2315 | |
| 2316 | return SelectRowOrColumn(aChildContent, aNormalSelection); |
| 2317 | } |
| 2318 | } |
| 2319 | |
| 2320 | // Reselect block of cells to new end location |
| 2321 | return SelectBlockOfCells(mStartSelectedCell, aChildContent, |
| 2322 | aNormalSelection); |
| 2323 | } |
| 2324 | } |
| 2325 | // Do nothing if dragging in table, but outside a cell |
| 2326 | return NS_OK; |
| 2327 | } |
| 2328 | |
| 2329 | nsresult nsFrameSelection::TableSelection::HandleMouseUpOrDown( |
| 2330 | TableSelectionMode aTarget, bool aDragState, nsIContent* aChildContent, |
| 2331 | nsINode* aParentContent, int32_t aContentOffset, |
| 2332 | const WidgetMouseEvent* aMouseEvent, Selection& aNormalSelection) { |
| 2333 | nsresult result = NS_OK; |
| 2334 | // Not dragging -- mouse event is down or up |
| 2335 | if (aDragState) { |
| 2336 | #ifdef DEBUG_TABLE_SELECTION |
| 2337 | printf("HandleTableSelection: Mouse down event\n"); |
| 2338 | #endif |
| 2339 | // Clear cell we stored in mouse-down |
| 2340 | mUnselectCellOnMouseUp = nullptr; |
| 2341 | |
| 2342 | if (aTarget == TableSelectionMode::Cell) { |
| 2343 | bool isSelected = false; |
| 2344 | |
| 2345 | // Check if we have other selected cells |
| 2346 | nsIContent* previousCellNode = |
| 2347 | GetFirstSelectedContent(GetFirstCellRange(aNormalSelection)); |
| 2348 | if (previousCellNode) { |
| 2349 | // We have at least 1 other selected cell |
| 2350 | |
| 2351 | // Check if new cell is already selected |
| 2352 | nsIFrame* cellFrame = aChildContent->GetPrimaryFrame(); |
| 2353 | if (!cellFrame) { |
| 2354 | return NS_ERROR_NULL_POINTER; |
| 2355 | } |
| 2356 | isSelected = cellFrame->IsSelected(); |
| 2357 | } else { |
| 2358 | // No cells selected -- remove non-cell selection |
| 2359 | aNormalSelection.RemoveAllRanges(IgnoreErrors()); |
| 2360 | } |
| 2361 | mDragSelectingCells = true; // Signal to start drag-cell-selection |
| 2362 | mMode = aTarget; |
| 2363 | // Set start for new drag-selection block (not appended) |
| 2364 | mStartSelectedCell = aChildContent; |
| 2365 | // The initial block end is same as the start |
| 2366 | mEndSelectedCell = aChildContent; |
| 2367 | |
| 2368 | if (isSelected) { |
| 2369 | // Remember this cell to (possibly) unselect it on mouseup |
| 2370 | mUnselectCellOnMouseUp = aChildContent; |
| 2371 | #ifdef DEBUG_TABLE_SELECTION |
| 2372 | printf( |
| 2373 | "HandleTableSelection: Saving " |
| 2374 | "mUnselectCellOnMouseUp\n"); |
| 2375 | #endif |
| 2376 | } else { |
| 2377 | // Select an unselected cell |
| 2378 | // but first remove existing selection if not in same table |
| 2379 | if (previousCellNode && |
| 2380 | !IsInSameTable(previousCellNode, aChildContent)) { |
| 2381 | aNormalSelection.RemoveAllRanges(IgnoreErrors()); |
| 2382 | // Reset selection mode that is cleared in RemoveAllRanges |
| 2383 | mMode = aTarget; |
| 2384 | } |
| 2385 | |
| 2386 | return ::SelectCellElement(aChildContent, aNormalSelection); |
| 2387 | } |
| 2388 | |
| 2389 | return NS_OK; |
| 2390 | } |
| 2391 | if (aTarget == TableSelectionMode::Table) { |
| 2392 | // TODO: We currently select entire table when clicked between cells, |
| 2393 | // should we restrict to only around border? |
| 2394 | // *** How do we get location data for cell and click? |
| 2395 | mDragSelectingCells = false; |
| 2396 | mStartSelectedCell = nullptr; |
| 2397 | mEndSelectedCell = nullptr; |
| 2398 | |
| 2399 | // Remove existing selection and select the table |
| 2400 | aNormalSelection.RemoveAllRanges(IgnoreErrors()); |
| 2401 | return CreateAndAddRange(aParentContent, aContentOffset, |
| 2402 | aNormalSelection); |
| 2403 | } |
| 2404 | if (aTarget == TableSelectionMode::Row || |
| 2405 | aTarget == TableSelectionMode::Column) { |
| 2406 | #ifdef DEBUG_TABLE_SELECTION |
| 2407 | printf("aTarget == %d\n", aTarget); |
| 2408 | #endif |
| 2409 | |
| 2410 | // Start drag-selecting mode so multiple rows/cols can be selected |
| 2411 | // Note: Currently, nsIFrame::GetDataForTableSelection |
| 2412 | // will never call us for row or column selection on mouse down |
| 2413 | mDragSelectingCells = true; |
| 2414 | |
| 2415 | // Force new selection block |
| 2416 | mStartSelectedCell = nullptr; |
| 2417 | aNormalSelection.RemoveAllRanges(IgnoreErrors()); |
| 2418 | // Always do this AFTER RemoveAllRanges |
| 2419 | mMode = aTarget; |
| 2420 | |
| 2421 | return SelectRowOrColumn(aChildContent, aNormalSelection); |
| 2422 | } |
| 2423 | } else { |
| 2424 | #ifdef DEBUG_TABLE_SELECTION |
| 2425 | printf( |
| 2426 | "HandleTableSelection: Mouse UP event. " |
| 2427 | "mDragSelectingCells=%d, " |
| 2428 | "mStartSelectedCell=%p\n", |
| 2429 | mDragSelectingCells, mStartSelectedCell.get()); |
| 2430 | #endif |
| 2431 | // First check if we are extending a block selection |
| 2432 | const uint32_t rangeCount = aNormalSelection.RangeCount(); |
| 2433 | |
| 2434 | if (rangeCount > 0 && aMouseEvent->IsShift() && mAppendStartSelectedCell && |
| 2435 | mAppendStartSelectedCell != aChildContent) { |
| 2436 | // Shift key is down: append a block selection |
| 2437 | mDragSelectingCells = false; |
| 2438 | |
| 2439 | return SelectBlockOfCells(mAppendStartSelectedCell, aChildContent, |
| 2440 | aNormalSelection); |
| 2441 | } |
| 2442 | |
| 2443 | if (mDragSelectingCells) { |
| 2444 | mAppendStartSelectedCell = mStartSelectedCell; |
| 2445 | } |
| 2446 | |
| 2447 | mDragSelectingCells = false; |
| 2448 | mStartSelectedCell = nullptr; |
| 2449 | mEndSelectedCell = nullptr; |
| 2450 | |
| 2451 | // Any other mouseup actions require that Ctrl or Cmd key is pressed |
| 2452 | // else stop table selection mode |
| 2453 | bool doMouseUpAction = false; |
| 2454 | #ifdef XP_MACOSX |
| 2455 | doMouseUpAction = aMouseEvent->IsMeta(); |
| 2456 | #else |
| 2457 | doMouseUpAction = aMouseEvent->IsControl(); |
| 2458 | #endif |
| 2459 | if (!doMouseUpAction) { |
| 2460 | #ifdef DEBUG_TABLE_SELECTION |
| 2461 | printf( |
| 2462 | "HandleTableSelection: Ending cell selection on mouseup: " |
| 2463 | "mAppendStartSelectedCell=%p\n", |
| 2464 | mAppendStartSelectedCell.get()); |
| 2465 | #endif |
| 2466 | return NS_OK; |
| 2467 | } |
| 2468 | // Unselect a cell only if it wasn't |
| 2469 | // just selected on mousedown |
| 2470 | if (aChildContent == mUnselectCellOnMouseUp) { |
| 2471 | // Scan ranges to find the cell to unselect (the selection range to |
| 2472 | // remove) |
| 2473 | // XXXbz it's really weird that this lives outside the loop, so once we |
| 2474 | // find one we keep looking at it even if we find no more cells... |
| 2475 | nsINode* previousCellParent = nullptr; |
| 2476 | #ifdef DEBUG_TABLE_SELECTION |
| 2477 | printf( |
| 2478 | "HandleTableSelection: Unselecting " |
| 2479 | "mUnselectCellOnMouseUp; " |
| 2480 | "rangeCount=%d\n", |
| 2481 | rangeCount); |
| 2482 | #endif |
| 2483 | for (const uint32_t i : IntegerRange(rangeCount)) { |
| 2484 | MOZ_ASSERT(aNormalSelection.RangeCount() == rangeCount)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNormalSelection.RangeCount() == rangeCount)>::isValid , "invalid assertion condition"); if ((__builtin_expect(!!(!( !!(aNormalSelection.RangeCount() == rangeCount))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNormalSelection.RangeCount() == rangeCount" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2484); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNormalSelection.RangeCount() == rangeCount" ")"); do { *((volatile int*)__null) = 2484; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2485 | // Strong reference, because sometimes we want to remove |
| 2486 | // this range, and then we might be the only owner. |
| 2487 | RefPtr<nsRange> range = aNormalSelection.GetRangeAt(i); |
| 2488 | if (MOZ_UNLIKELY(!range)(__builtin_expect(!!(!range), 0))) { |
| 2489 | return NS_ERROR_NULL_POINTER; |
| 2490 | } |
| 2491 | |
| 2492 | nsINode* container = range->GetStartContainer(); |
| 2493 | if (!container) { |
| 2494 | return NS_ERROR_NULL_POINTER; |
| 2495 | } |
| 2496 | |
| 2497 | int32_t offset = range->StartOffset(); |
| 2498 | // Be sure previous selection is a table cell |
| 2499 | nsIContent* child = range->GetChildAtStartOffset(); |
| 2500 | if (child && IsCell(child)) { |
| 2501 | previousCellParent = container; |
| 2502 | } |
| 2503 | |
| 2504 | // We're done if we didn't find parent of a previously-selected cell |
| 2505 | if (!previousCellParent) { |
| 2506 | break; |
| 2507 | } |
| 2508 | |
| 2509 | if (previousCellParent == aParentContent && offset == aContentOffset) { |
| 2510 | // Cell is already selected |
| 2511 | if (rangeCount == 1) { |
| 2512 | #ifdef DEBUG_TABLE_SELECTION |
| 2513 | printf("HandleTableSelection: Unselecting single selected cell\n"); |
| 2514 | #endif |
| 2515 | // This was the only cell selected. |
| 2516 | // Collapse to "normal" selection inside the cell |
| 2517 | mStartSelectedCell = nullptr; |
| 2518 | mEndSelectedCell = nullptr; |
| 2519 | mAppendStartSelectedCell = nullptr; |
| 2520 | // TODO: We need a "Collapse to just before deepest child" routine |
| 2521 | // Even better, should we collapse to just after the LAST deepest |
| 2522 | // child |
| 2523 | // (i.e., at the end of the cell's contents)? |
| 2524 | return aNormalSelection.CollapseInLimiter(aChildContent, 0); |
| 2525 | } |
| 2526 | #ifdef DEBUG_TABLE_SELECTION |
| 2527 | printf( |
| 2528 | "HandleTableSelection: Removing cell from multi-cell " |
| 2529 | "selection\n"); |
| 2530 | #endif |
| 2531 | // Unselecting the start of previous block |
| 2532 | // XXX What do we use now! |
| 2533 | if (aChildContent == mAppendStartSelectedCell) { |
| 2534 | mAppendStartSelectedCell = nullptr; |
| 2535 | } |
| 2536 | |
| 2537 | // Deselect cell by removing its range from selection |
| 2538 | ErrorResult err; |
| 2539 | aNormalSelection.RemoveRangeAndUnselectFramesAndNotifyListeners( |
| 2540 | *range, err); |
| 2541 | return err.StealNSResult(); |
| 2542 | } |
| 2543 | } |
| 2544 | mUnselectCellOnMouseUp = nullptr; |
| 2545 | } |
| 2546 | } |
| 2547 | return result; |
| 2548 | } |
| 2549 | |
| 2550 | nsresult nsFrameSelection::TableSelection::SelectBlockOfCells( |
| 2551 | nsIContent* aStartCell, nsIContent* aEndCell, Selection& aNormalSelection) { |
| 2552 | NS_ENSURE_TRUE(aStartCell, NS_ERROR_NULL_POINTER)do { if ((__builtin_expect(!!(!(aStartCell)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aStartCell" ") failed", nullptr, "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2552); return NS_ERROR_NULL_POINTER; } } while (false); |
| 2553 | NS_ENSURE_TRUE(aEndCell, NS_ERROR_NULL_POINTER)do { if ((__builtin_expect(!!(!(aEndCell)), 0))) { NS_DebugBreak (NS_DEBUG_WARNING, "NS_ENSURE_TRUE(" "aEndCell" ") failed", nullptr , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2553); return NS_ERROR_NULL_POINTER; } } while (false); |
| 2554 | mEndSelectedCell = aEndCell; |
| 2555 | |
| 2556 | nsresult result = NS_OK; |
| 2557 | |
| 2558 | // If new end cell is in a different table, do nothing |
| 2559 | const RefPtr<const nsIContent> table = IsInSameTable(aStartCell, aEndCell); |
| 2560 | if (!table) { |
| 2561 | return NS_OK; |
| 2562 | } |
| 2563 | |
| 2564 | // Get starting and ending cells' location in the cellmap |
| 2565 | int32_t startRowIndex, startColIndex, endRowIndex, endColIndex; |
| 2566 | result = GetCellIndexes(aStartCell, startRowIndex, startColIndex); |
| 2567 | if (NS_FAILED(result)((bool)(__builtin_expect(!!(NS_FAILED_impl(result)), 0)))) { |
| 2568 | return result; |
| 2569 | } |
| 2570 | result = GetCellIndexes(aEndCell, endRowIndex, endColIndex); |
| 2571 | if (NS_FAILED(result)((bool)(__builtin_expect(!!(NS_FAILED_impl(result)), 0)))) { |
| 2572 | return result; |
| 2573 | } |
| 2574 | |
| 2575 | if (mDragSelectingCells) { |
| 2576 | // Drag selecting: remove selected cells outside of new block limits |
| 2577 | // TODO: `UnselectCells`'s return value shouldn't be ignored. |
| 2578 | UnselectCells(table, startRowIndex, startColIndex, endRowIndex, endColIndex, |
| 2579 | true, aNormalSelection); |
| 2580 | } |
| 2581 | |
| 2582 | // Note that we select block in the direction of user's mouse dragging, |
| 2583 | // which means start cell may be after the end cell in either row or column |
| 2584 | return AddCellsToSelection(table, startRowIndex, startColIndex, endRowIndex, |
| 2585 | endColIndex, aNormalSelection); |
| 2586 | } |
| 2587 | |
| 2588 | nsresult nsFrameSelection::TableSelection::UnselectCells( |
| 2589 | const nsIContent* aTableContent, int32_t aStartRowIndex, |
| 2590 | int32_t aStartColumnIndex, int32_t aEndRowIndex, int32_t aEndColumnIndex, |
| 2591 | bool aRemoveOutsideOfCellRange, mozilla::dom::Selection& aNormalSelection) { |
| 2592 | MOZ_ASSERT(aNormalSelection.Type() == SelectionType::eNormal)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNormalSelection.Type() == SelectionType::eNormal)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNormalSelection.Type() == SelectionType::eNormal))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNormalSelection.Type() == SelectionType::eNormal" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2592); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNormalSelection.Type() == SelectionType::eNormal" ")"); do { *((volatile int*)__null) = 2592; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2593 | |
| 2594 | nsTableWrapperFrame* tableFrame = |
| 2595 | do_QueryFrame(aTableContent->GetPrimaryFrame()); |
| 2596 | if (!tableFrame) { |
| 2597 | return NS_ERROR_FAILURE; |
| 2598 | } |
| 2599 | |
| 2600 | int32_t minRowIndex = std::min(aStartRowIndex, aEndRowIndex); |
| 2601 | int32_t maxRowIndex = std::max(aStartRowIndex, aEndRowIndex); |
| 2602 | int32_t minColIndex = std::min(aStartColumnIndex, aEndColumnIndex); |
| 2603 | int32_t maxColIndex = std::max(aStartColumnIndex, aEndColumnIndex); |
| 2604 | |
| 2605 | // Strong reference because we sometimes remove the range |
| 2606 | RefPtr<nsRange> range = GetFirstCellRange(aNormalSelection); |
| 2607 | nsIContent* cellNode = GetFirstSelectedContent(range); |
| 2608 | MOZ_ASSERT(!range || cellNode, "Must have cellNode if had a range")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!range || cellNode)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!range || cellNode))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!range || cellNode" " (" "Must have cellNode if had a range" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2608); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!range || cellNode" ") (" "Must have cellNode if had a range" ")"); do { *((volatile int*)__null) = 2608; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 2609 | |
| 2610 | int32_t curRowIndex, curColIndex; |
| 2611 | while (cellNode) { |
| 2612 | nsresult result = GetCellIndexes(cellNode, curRowIndex, curColIndex); |
| 2613 | if (NS_FAILED(result)((bool)(__builtin_expect(!!(NS_FAILED_impl(result)), 0)))) { |
| 2614 | return result; |
| 2615 | } |
| 2616 | |
| 2617 | #ifdef DEBUG_TABLE_SELECTION |
| 2618 | if (!range) printf("RemoveCellsToSelection -- range is null\n"); |
| 2619 | #endif |
| 2620 | |
| 2621 | if (range) { |
| 2622 | if (aRemoveOutsideOfCellRange) { |
| 2623 | if (curRowIndex < minRowIndex || curRowIndex > maxRowIndex || |
| 2624 | curColIndex < minColIndex || curColIndex > maxColIndex) { |
| 2625 | aNormalSelection.RemoveRangeAndUnselectFramesAndNotifyListeners( |
| 2626 | *range, IgnoreErrors()); |
| 2627 | // Since we've removed the range, decrement pointer to next range |
| 2628 | mSelectedCellIndex--; |
| 2629 | } |
| 2630 | |
| 2631 | } else { |
| 2632 | // Remove cell from selection if it belongs to the given cells range or |
| 2633 | // it is spanned onto the cells range. |
| 2634 | nsTableCellFrame* cellFrame = |
| 2635 | tableFrame->GetCellFrameAt(curRowIndex, curColIndex); |
| 2636 | |
| 2637 | uint32_t origRowIndex = cellFrame->RowIndex(); |
| 2638 | uint32_t origColIndex = cellFrame->ColIndex(); |
| 2639 | uint32_t actualRowSpan = |
| 2640 | tableFrame->GetEffectiveRowSpanAt(origRowIndex, origColIndex); |
| 2641 | uint32_t actualColSpan = |
| 2642 | tableFrame->GetEffectiveColSpanAt(curRowIndex, curColIndex); |
| 2643 | if (origRowIndex <= static_cast<uint32_t>(maxRowIndex) && |
| 2644 | maxRowIndex >= 0 && |
| 2645 | origRowIndex + actualRowSpan - 1 >= |
| 2646 | static_cast<uint32_t>(minRowIndex) && |
| 2647 | origColIndex <= static_cast<uint32_t>(maxColIndex) && |
| 2648 | maxColIndex >= 0 && |
| 2649 | origColIndex + actualColSpan - 1 >= |
| 2650 | static_cast<uint32_t>(minColIndex)) { |
| 2651 | aNormalSelection.RemoveRangeAndUnselectFramesAndNotifyListeners( |
| 2652 | *range, IgnoreErrors()); |
| 2653 | // Since we've removed the range, decrement pointer to next range |
| 2654 | mSelectedCellIndex--; |
| 2655 | } |
| 2656 | } |
| 2657 | } |
| 2658 | |
| 2659 | range = GetNextCellRange(aNormalSelection); |
| 2660 | cellNode = GetFirstSelectedContent(range); |
| 2661 | MOZ_ASSERT(!range || cellNode, "Must have cellNode if had a range")do { static_assert( mozilla::detail::AssertionConditionType< decltype(!range || cellNode)>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(!range || cellNode))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("!range || cellNode" " (" "Must have cellNode if had a range" ")", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2661); AnnotateMozCrashReason("MOZ_ASSERT" "(" "!range || cellNode" ") (" "Must have cellNode if had a range" ")"); do { *((volatile int*)__null) = 2661; __attribute__((nomerge)) ::abort(); } while (false); } } while (false); |
| 2662 | } |
| 2663 | |
| 2664 | return NS_OK; |
| 2665 | } |
| 2666 | |
| 2667 | nsresult SelectCellElement(nsIContent* aCellElement, |
| 2668 | Selection& aNormalSelection) { |
| 2669 | MOZ_ASSERT(aNormalSelection.Type() == SelectionType::eNormal)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNormalSelection.Type() == SelectionType::eNormal)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNormalSelection.Type() == SelectionType::eNormal))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNormalSelection.Type() == SelectionType::eNormal" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2669); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNormalSelection.Type() == SelectionType::eNormal" ")"); do { *((volatile int*)__null) = 2669; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2670 | |
| 2671 | nsIContent* parent = aCellElement->GetParent(); |
| 2672 | |
| 2673 | // Get child offset |
| 2674 | const int32_t offset = parent->ComputeIndexOf_Deprecated(aCellElement); |
| 2675 | |
| 2676 | return CreateAndAddRange(parent, offset, aNormalSelection); |
| 2677 | } |
| 2678 | |
| 2679 | static nsresult AddCellsToSelection(const nsIContent* aTableContent, |
| 2680 | int32_t aStartRowIndex, |
| 2681 | int32_t aStartColumnIndex, |
| 2682 | int32_t aEndRowIndex, |
| 2683 | int32_t aEndColumnIndex, |
| 2684 | Selection& aNormalSelection) { |
| 2685 | MOZ_ASSERT(aNormalSelection.Type() == SelectionType::eNormal)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNormalSelection.Type() == SelectionType::eNormal)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNormalSelection.Type() == SelectionType::eNormal))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNormalSelection.Type() == SelectionType::eNormal" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2685); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNormalSelection.Type() == SelectionType::eNormal" ")"); do { *((volatile int*)__null) = 2685; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2686 | |
| 2687 | nsTableWrapperFrame* tableFrame = |
| 2688 | do_QueryFrame(aTableContent->GetPrimaryFrame()); |
| 2689 | if (!tableFrame) { // Check that |table| is a table. |
| 2690 | return NS_ERROR_FAILURE; |
| 2691 | } |
| 2692 | |
| 2693 | nsresult result = NS_OK; |
| 2694 | uint32_t row = aStartRowIndex; |
| 2695 | while (true) { |
| 2696 | uint32_t col = aStartColumnIndex; |
| 2697 | while (true) { |
| 2698 | nsTableCellFrame* cellFrame = tableFrame->GetCellFrameAt(row, col); |
| 2699 | |
| 2700 | // Skip cells that are spanned from previous locations or are already |
| 2701 | // selected |
| 2702 | if (cellFrame) { |
| 2703 | uint32_t origRow = cellFrame->RowIndex(); |
| 2704 | uint32_t origCol = cellFrame->ColIndex(); |
| 2705 | if (origRow == row && origCol == col && !cellFrame->IsSelected()) { |
| 2706 | result = SelectCellElement(cellFrame->GetContent(), aNormalSelection); |
| 2707 | if (NS_FAILED(result)((bool)(__builtin_expect(!!(NS_FAILED_impl(result)), 0)))) { |
| 2708 | return result; |
| 2709 | } |
| 2710 | } |
| 2711 | } |
| 2712 | // Done when we reach end column |
| 2713 | if (col == static_cast<uint32_t>(aEndColumnIndex)) { |
| 2714 | break; |
| 2715 | } |
| 2716 | |
| 2717 | if (aStartColumnIndex < aEndColumnIndex) { |
| 2718 | col++; |
| 2719 | } else { |
| 2720 | col--; |
| 2721 | } |
| 2722 | } |
| 2723 | if (row == static_cast<uint32_t>(aEndRowIndex)) { |
| 2724 | break; |
| 2725 | } |
| 2726 | |
| 2727 | if (aStartRowIndex < aEndRowIndex) { |
| 2728 | row++; |
| 2729 | } else { |
| 2730 | row--; |
| 2731 | } |
| 2732 | } |
| 2733 | return result; |
| 2734 | } |
| 2735 | |
| 2736 | nsresult nsFrameSelection::RemoveCellsFromSelection(nsIContent* aTable, |
| 2737 | int32_t aStartRowIndex, |
| 2738 | int32_t aStartColumnIndex, |
| 2739 | int32_t aEndRowIndex, |
| 2740 | int32_t aEndColumnIndex) { |
| 2741 | const RefPtr<Selection> selection = &NormalSelection(); |
| 2742 | return mTableSelection.UnselectCells(aTable, aStartRowIndex, |
| 2743 | aStartColumnIndex, aEndRowIndex, |
| 2744 | aEndColumnIndex, false, *selection); |
| 2745 | } |
| 2746 | |
| 2747 | nsresult nsFrameSelection::RestrictCellsToSelection(nsIContent* aTable, |
| 2748 | int32_t aStartRowIndex, |
| 2749 | int32_t aStartColumnIndex, |
| 2750 | int32_t aEndRowIndex, |
| 2751 | int32_t aEndColumnIndex) { |
| 2752 | const RefPtr<Selection> selection = &NormalSelection(); |
| 2753 | return mTableSelection.UnselectCells(aTable, aStartRowIndex, |
| 2754 | aStartColumnIndex, aEndRowIndex, |
| 2755 | aEndColumnIndex, true, *selection); |
| 2756 | } |
| 2757 | |
| 2758 | Result<nsFrameSelection::TableSelection::FirstAndLastCell, nsresult> |
| 2759 | nsFrameSelection::TableSelection::FindFirstAndLastCellOfRowOrColumn( |
| 2760 | const nsIContent& aCellContent) const { |
| 2761 | const nsIContent* table = GetParentTable(&aCellContent); |
| 2762 | if (!table) { |
| 2763 | return Err(NS_ERROR_NULL_POINTER); |
| 2764 | } |
| 2765 | |
| 2766 | // Get table and cell layout interfaces to access |
| 2767 | // cell data based on cellmap location |
| 2768 | // Frames are not ref counted, so don't use an nsCOMPtr |
| 2769 | nsTableWrapperFrame* tableFrame = do_QueryFrame(table->GetPrimaryFrame()); |
| 2770 | if (!tableFrame) { |
| 2771 | return Err(NS_ERROR_FAILURE); |
| 2772 | } |
| 2773 | nsITableCellLayout* cellLayout = GetCellLayout(&aCellContent); |
| 2774 | if (!cellLayout) { |
| 2775 | return Err(NS_ERROR_FAILURE); |
| 2776 | } |
| 2777 | |
| 2778 | // Get location of target cell: |
| 2779 | int32_t rowIndex, colIndex; |
| 2780 | nsresult result = cellLayout->GetCellIndexes(rowIndex, colIndex); |
| 2781 | if (NS_FAILED(result)((bool)(__builtin_expect(!!(NS_FAILED_impl(result)), 0)))) { |
| 2782 | return Err(result); |
| 2783 | } |
| 2784 | |
| 2785 | // Be sure we start at proper beginning |
| 2786 | // (This allows us to select row or col given ANY cell!) |
| 2787 | if (mMode == TableSelectionMode::Row) { |
| 2788 | colIndex = 0; |
| 2789 | } |
| 2790 | if (mMode == TableSelectionMode::Column) { |
| 2791 | rowIndex = 0; |
| 2792 | } |
| 2793 | |
| 2794 | FirstAndLastCell firstAndLastCell; |
| 2795 | while (true) { |
| 2796 | // Loop through all cells in column or row to find first and last |
| 2797 | nsCOMPtr<nsIContent> curCellContent = |
| 2798 | tableFrame->GetCellAt(rowIndex, colIndex); |
| 2799 | if (!curCellContent) { |
| 2800 | break; |
| 2801 | } |
| 2802 | |
| 2803 | if (!firstAndLastCell.mFirst) { |
| 2804 | firstAndLastCell.mFirst = curCellContent; |
| 2805 | } |
| 2806 | |
| 2807 | firstAndLastCell.mLast = std::move(curCellContent); |
| 2808 | |
| 2809 | // Move to next cell in cellmap, skipping spanned locations |
| 2810 | if (mMode == TableSelectionMode::Row) { |
| 2811 | colIndex += tableFrame->GetEffectiveRowSpanAt(rowIndex, colIndex); |
| 2812 | } else { |
| 2813 | rowIndex += tableFrame->GetEffectiveRowSpanAt(rowIndex, colIndex); |
| 2814 | } |
| 2815 | } |
| 2816 | return firstAndLastCell; |
| 2817 | } |
| 2818 | |
| 2819 | nsresult nsFrameSelection::TableSelection::SelectRowOrColumn( |
| 2820 | nsIContent* aCellContent, Selection& aNormalSelection) { |
| 2821 | MOZ_ASSERT(aNormalSelection.Type() == SelectionType::eNormal)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNormalSelection.Type() == SelectionType::eNormal)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNormalSelection.Type() == SelectionType::eNormal))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNormalSelection.Type() == SelectionType::eNormal" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2821); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNormalSelection.Type() == SelectionType::eNormal" ")"); do { *((volatile int*)__null) = 2821; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2822 | |
| 2823 | if (!aCellContent) { |
| 2824 | return NS_ERROR_NULL_POINTER; |
| 2825 | } |
| 2826 | |
| 2827 | Result<FirstAndLastCell, nsresult> firstAndLastCell = |
| 2828 | FindFirstAndLastCellOfRowOrColumn(*aCellContent); |
| 2829 | if (firstAndLastCell.isErr()) { |
| 2830 | return firstAndLastCell.unwrapErr(); |
| 2831 | } |
| 2832 | |
| 2833 | // Use SelectBlockOfCells: |
| 2834 | // This will replace existing selection, |
| 2835 | // but allow unselecting by dragging out of selected region |
| 2836 | if (firstAndLastCell.inspect().mFirst && firstAndLastCell.inspect().mLast) { |
| 2837 | nsresult rv{NS_OK}; |
| 2838 | |
| 2839 | if (!mStartSelectedCell) { |
| 2840 | // We are starting a new block, so select the first cell |
| 2841 | rv = ::SelectCellElement(firstAndLastCell.inspect().mFirst, |
| 2842 | aNormalSelection); |
| 2843 | if (NS_FAILED(rv)((bool)(__builtin_expect(!!(NS_FAILED_impl(rv)), 0)))) { |
| 2844 | return rv; |
| 2845 | } |
| 2846 | mStartSelectedCell = firstAndLastCell.inspect().mFirst; |
| 2847 | } |
| 2848 | |
| 2849 | rv = SelectBlockOfCells(mStartSelectedCell, |
| 2850 | firstAndLastCell.inspect().mLast, aNormalSelection); |
| 2851 | |
| 2852 | // This gets set to the cell at end of row/col, |
| 2853 | // but we need it to be the cell under cursor |
| 2854 | mEndSelectedCell = aCellContent; |
| 2855 | return rv; |
| 2856 | } |
| 2857 | |
| 2858 | #if 0 |
| 2859 | // This is a more efficient strategy that appends row to current selection, |
| 2860 | // but doesn't allow dragging OFF of an existing selection to unselect! |
| 2861 | do { |
| 2862 | // Loop through all cells in column or row |
| 2863 | result = tableLayout->GetCellDataAt(rowIndex, colIndex, |
| 2864 | getter_AddRefs(cellElement), |
| 2865 | curRowIndex, curColIndex, |
| 2866 | rowSpan, colSpan, |
| 2867 | actualRowSpan, actualColSpan, |
| 2868 | isSelected); |
| 2869 | if (NS_FAILED(result)((bool)(__builtin_expect(!!(NS_FAILED_impl(result)), 0)))) return result; |
| 2870 | // We're done when cell is not found |
| 2871 | if (!cellElement) break; |
| 2872 | |
| 2873 | |
| 2874 | // Check spans else we infinitely loop |
| 2875 | NS_ASSERTION(actualColSpan, "actualColSpan is 0!")do { if (!(actualColSpan)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "actualColSpan is 0!", "actualColSpan", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2875); MOZ_PretendNoReturn(); } } while (0); |
| 2876 | NS_ASSERTION(actualRowSpan, "actualRowSpan is 0!")do { if (!(actualRowSpan)) { NS_DebugBreak(NS_DEBUG_ASSERTION , "actualRowSpan is 0!", "actualRowSpan", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2876); MOZ_PretendNoReturn(); } } while (0); |
| 2877 | |
| 2878 | // Skip cells that are already selected or span from outside our region |
| 2879 | if (!isSelected && rowIndex == curRowIndex && colIndex == curColIndex) |
| 2880 | { |
| 2881 | result = SelectCellElement(cellElement); |
| 2882 | if (NS_FAILED(result)((bool)(__builtin_expect(!!(NS_FAILED_impl(result)), 0)))) return result; |
| 2883 | } |
| 2884 | // Move to next row or column in cellmap, skipping spanned locations |
| 2885 | if (mMode == TableSelectionMode::Row) |
| 2886 | colIndex += actualColSpan; |
| 2887 | else |
| 2888 | rowIndex += actualRowSpan; |
| 2889 | } |
| 2890 | while (cellElement); |
| 2891 | #endif |
| 2892 | |
| 2893 | return NS_OK; |
| 2894 | } |
| 2895 | |
| 2896 | // static |
| 2897 | nsIContent* nsFrameSelection::GetFirstCellNodeInRange(const nsRange* aRange) { |
| 2898 | if (!aRange) { |
| 2899 | return nullptr; |
| 2900 | } |
| 2901 | |
| 2902 | nsIContent* childContent = aRange->GetChildAtStartOffset(); |
| 2903 | if (!childContent) { |
| 2904 | return nullptr; |
| 2905 | } |
| 2906 | // Don't return node if not a cell |
| 2907 | if (!IsCell(childContent)) { |
| 2908 | return nullptr; |
| 2909 | } |
| 2910 | |
| 2911 | return childContent; |
| 2912 | } |
| 2913 | |
| 2914 | nsRange* nsFrameSelection::TableSelection::GetFirstCellRange( |
| 2915 | const mozilla::dom::Selection& aNormalSelection) { |
| 2916 | MOZ_ASSERT(aNormalSelection.Type() == SelectionType::eNormal)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNormalSelection.Type() == SelectionType::eNormal)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNormalSelection.Type() == SelectionType::eNormal))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNormalSelection.Type() == SelectionType::eNormal" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2916); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNormalSelection.Type() == SelectionType::eNormal" ")"); do { *((volatile int*)__null) = 2916; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2917 | |
| 2918 | nsRange* firstRange = aNormalSelection.GetRangeAt(0); |
| 2919 | if (!GetFirstCellNodeInRange(firstRange)) { |
| 2920 | return nullptr; |
| 2921 | } |
| 2922 | |
| 2923 | // Setup for next cell |
| 2924 | mSelectedCellIndex = 1; |
| 2925 | |
| 2926 | return firstRange; |
| 2927 | } |
| 2928 | |
| 2929 | nsRange* nsFrameSelection::TableSelection::GetNextCellRange( |
| 2930 | const mozilla::dom::Selection& aNormalSelection) { |
| 2931 | MOZ_ASSERT(aNormalSelection.Type() == SelectionType::eNormal)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNormalSelection.Type() == SelectionType::eNormal)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNormalSelection.Type() == SelectionType::eNormal))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNormalSelection.Type() == SelectionType::eNormal" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 2931); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNormalSelection.Type() == SelectionType::eNormal" ")"); do { *((volatile int*)__null) = 2931; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 2932 | |
| 2933 | nsRange* range = |
| 2934 | aNormalSelection.GetRangeAt(AssertedCast<uint32_t>(mSelectedCellIndex)); |
| 2935 | |
| 2936 | // Get first node in next range of selection - test if it's a cell |
| 2937 | if (!GetFirstCellNodeInRange(range)) { |
| 2938 | return nullptr; |
| 2939 | } |
| 2940 | |
| 2941 | // Setup for next cell |
| 2942 | mSelectedCellIndex++; |
| 2943 | |
| 2944 | return range; |
| 2945 | } |
| 2946 | |
| 2947 | // static |
| 2948 | nsresult nsFrameSelection::GetCellIndexes(const nsIContent* aCell, |
| 2949 | int32_t& aRowIndex, |
| 2950 | int32_t& aColIndex) { |
| 2951 | if (!aCell) { |
| 2952 | return NS_ERROR_NULL_POINTER; |
| 2953 | } |
| 2954 | |
| 2955 | aColIndex = 0; // initialize out params |
| 2956 | aRowIndex = 0; |
| 2957 | |
| 2958 | nsITableCellLayout* cellLayoutObject = GetCellLayout(aCell); |
| 2959 | if (!cellLayoutObject) { |
| 2960 | return NS_ERROR_FAILURE; |
| 2961 | } |
| 2962 | return cellLayoutObject->GetCellIndexes(aRowIndex, aColIndex); |
| 2963 | } |
| 2964 | |
| 2965 | // static |
| 2966 | nsIContent* nsFrameSelection::IsInSameTable(const nsIContent* aContent1, |
| 2967 | const nsIContent* aContent2) { |
| 2968 | if (!aContent1 || !aContent2) { |
| 2969 | return nullptr; |
| 2970 | } |
| 2971 | |
| 2972 | nsIContent* tableNode1 = GetParentTable(aContent1); |
| 2973 | nsIContent* tableNode2 = GetParentTable(aContent2); |
| 2974 | |
| 2975 | // Must be in the same table. Note that we want to return false for |
| 2976 | // the test if both tables are null. |
| 2977 | return (tableNode1 == tableNode2) ? tableNode1 : nullptr; |
| 2978 | } |
| 2979 | |
| 2980 | // static |
| 2981 | nsIContent* nsFrameSelection::GetParentTable(const nsIContent* aCell) { |
| 2982 | if (!aCell) { |
| 2983 | return nullptr; |
| 2984 | } |
| 2985 | |
| 2986 | for (nsIContent* parent = aCell->GetParent(); parent; |
| 2987 | parent = parent->GetParent()) { |
| 2988 | if (parent->IsHTMLElement(nsGkAtoms::table)) { |
| 2989 | return parent; |
| 2990 | } |
| 2991 | } |
| 2992 | |
| 2993 | return nullptr; |
| 2994 | } |
| 2995 | |
| 2996 | nsresult nsFrameSelection::SelectCellElement(nsIContent* aCellElement) { |
| 2997 | const RefPtr<Selection> selection = &NormalSelection(); |
| 2998 | return ::SelectCellElement(aCellElement, *selection); |
| 2999 | } |
| 3000 | |
| 3001 | nsresult CreateAndAddRange(nsINode* aContainer, int32_t aOffset, |
| 3002 | Selection& aNormalSelection) { |
| 3003 | MOZ_ASSERT(aNormalSelection.Type() == SelectionType::eNormal)do { static_assert( mozilla::detail::AssertionConditionType< decltype(aNormalSelection.Type() == SelectionType::eNormal)> ::isValid, "invalid assertion condition"); if ((__builtin_expect (!!(!(!!(aNormalSelection.Type() == SelectionType::eNormal))) , 0))) { do { } while (false); MOZ_ReportAssertionFailure("aNormalSelection.Type() == SelectionType::eNormal" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 3003); AnnotateMozCrashReason("MOZ_ASSERT" "(" "aNormalSelection.Type() == SelectionType::eNormal" ")"); do { *((volatile int*)__null) = 3003; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3004 | |
| 3005 | if (!aContainer) { |
| 3006 | return NS_ERROR_NULL_POINTER; |
| 3007 | } |
| 3008 | |
| 3009 | // Set range around child at given offset |
| 3010 | ErrorResult error; |
| 3011 | RefPtr<nsRange> range = |
| 3012 | nsRange::Create(aContainer, aOffset, aContainer, aOffset + 1, error); |
| 3013 | if (NS_WARN_IF(error.Failed())NS_warn_if_impl(error.Failed(), "error.Failed()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 3013)) { |
| 3014 | return error.StealNSResult(); |
| 3015 | } |
| 3016 | 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/nsFrameSelection.cpp" , 3016); AnnotateMozCrashReason("MOZ_ASSERT" "(" "range" ")") ; do { *((volatile int*)__null) = 3016; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3017 | |
| 3018 | ErrorResult err; |
| 3019 | aNormalSelection.AddRangeAndSelectFramesAndNotifyListeners(*range, err); |
| 3020 | return err.StealNSResult(); |
| 3021 | } |
| 3022 | |
| 3023 | // End of Table Selection |
| 3024 | |
| 3025 | void nsFrameSelection::SetAncestorLimiter(nsIContent* aLimiter) { |
| 3026 | if (mLimiters.mAncestorLimiter != aLimiter) { |
| 3027 | mLimiters.mAncestorLimiter = aLimiter; |
| 3028 | const Selection& sel = NormalSelection(); |
| 3029 | LogSelectionAPI(&sel, __FUNCTION__, "aLimiter", aLimiter); |
| 3030 | |
| 3031 | if (!NodeIsInLimiters(sel.GetFocusNode())) { |
| 3032 | ClearNormalSelection(); |
| 3033 | if (mLimiters.mAncestorLimiter) { |
| 3034 | SetChangeReasons(nsISelectionListener::NO_REASON); |
| 3035 | nsCOMPtr<nsIContent> limiter(mLimiters.mAncestorLimiter); |
| 3036 | const nsresult rv = |
| 3037 | TakeFocus(*limiter, 0, 0, CaretAssociationHint::Before, |
| 3038 | FocusMode::kCollapseToNewPoint); |
| 3039 | Unused << NS_WARN_IF(NS_FAILED(rv))NS_warn_if_impl(((bool)(__builtin_expect(!!(NS_FAILED_impl(rv )), 0))), "NS_FAILED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 3039); |
| 3040 | // TODO: in case of failure, propagate it to the callers. |
| 3041 | } |
| 3042 | } |
| 3043 | } |
| 3044 | } |
| 3045 | |
| 3046 | void nsFrameSelection::SetDelayedCaretData(WidgetMouseEvent* aMouseEvent) { |
| 3047 | if (aMouseEvent) { |
| 3048 | mDelayedMouseEvent.mIsValid = true; |
| 3049 | mDelayedMouseEvent.mIsShift = aMouseEvent->IsShift(); |
| 3050 | mDelayedMouseEvent.mClickCount = aMouseEvent->mClickCount; |
| 3051 | } else { |
| 3052 | mDelayedMouseEvent.mIsValid = false; |
| 3053 | } |
| 3054 | } |
| 3055 | |
| 3056 | void nsFrameSelection::DisconnectFromPresShell() { |
| 3057 | if (mAccessibleCaretEnabled) { |
| 3058 | Selection& sel = NormalSelection(); |
| 3059 | sel.StopNotifyingAccessibleCaretEventHub(); |
| 3060 | } |
| 3061 | |
| 3062 | StopAutoScrollTimer(); |
| 3063 | for (size_t i = 0; i < std::size(mDomSelections); i++) { |
| 3064 | MOZ_ASSERT(mDomSelections[i])do { static_assert( mozilla::detail::AssertionConditionType< decltype(mDomSelections[i])>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(mDomSelections[i]))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("mDomSelections[i]" , "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 3064); AnnotateMozCrashReason("MOZ_ASSERT" "(" "mDomSelections[i]" ")"); do { *((volatile int*)__null) = 3064; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3065 | mDomSelections[i]->Clear(nullptr); |
| 3066 | } |
| 3067 | mPresShell = nullptr; |
| 3068 | } |
| 3069 | |
| 3070 | #ifdef XP_MACOSX |
| 3071 | /** |
| 3072 | * See Bug 1288453. |
| 3073 | * |
| 3074 | * Update the selection cache on repaint to handle when a pre-existing |
| 3075 | * selection becomes active aka the current selection. |
| 3076 | * |
| 3077 | * 1. Change the current selection by click n dragging another selection. |
| 3078 | * - Make a selection on content page. Make a selection in a text editor. |
| 3079 | * - You can click n drag the content selection to make it active again. |
| 3080 | * 2. Change the current selection when switching to a tab with a selection. |
| 3081 | * - Make selection in tab. |
| 3082 | * - Switching tabs will make its respective selection active. |
| 3083 | * |
| 3084 | * Therefore, we only update the selection cache on a repaint |
| 3085 | * if the current selection being repainted is not an empty selection. |
| 3086 | * |
| 3087 | * If the current selection is empty. The current selection cache |
| 3088 | * would be cleared by AutoCopyListener::OnSelectionChange(). |
| 3089 | */ |
| 3090 | static nsresult UpdateSelectionCacheOnRepaintSelection(Selection* aSel) { |
| 3091 | PresShell* presShell = aSel->GetPresShell(); |
| 3092 | if (!presShell) { |
| 3093 | return NS_OK; |
| 3094 | } |
| 3095 | nsCOMPtr<Document> aDoc = presShell->GetDocument(); |
| 3096 | |
| 3097 | if (aDoc && aSel && !aSel->IsCollapsed()) { |
| 3098 | return nsCopySupport::EncodeDocumentWithContextAndPutToClipboard( |
| 3099 | aSel, aDoc, nsIClipboard::kSelectionCache, false); |
| 3100 | } |
| 3101 | |
| 3102 | return NS_OK; |
| 3103 | } |
| 3104 | #endif // XP_MACOSX |
| 3105 | |
| 3106 | // mozilla::AutoCopyListener |
| 3107 | |
| 3108 | /* |
| 3109 | * What we do now: |
| 3110 | * On every selection change, we copy to the clipboard anew, creating a |
| 3111 | * HTML buffer, a transferable, an nsISupportsString and |
| 3112 | * a huge mess every time. This is basically what |
| 3113 | * nsCopySupport::EncodeDocumentWithContextAndPutToClipboard() does to move the |
| 3114 | * selection into the clipboard for Edit->Copy. |
| 3115 | * |
| 3116 | * What we should do, to make our end of the deal faster: |
| 3117 | * Create a singleton transferable with our own magic converter. When selection |
| 3118 | * changes (use a quick cache to detect ``real'' changes), we put the new |
| 3119 | * Selection in the transferable. Our magic converter will take care of |
| 3120 | * transferable->whatever-other-format when the time comes to actually |
| 3121 | * hand over the clipboard contents. |
| 3122 | * |
| 3123 | * Other issues: |
| 3124 | * - which X clipboard should we populate? |
| 3125 | * - should we use a different one than Edit->Copy, so that inadvertant |
| 3126 | * selections (or simple clicks, which currently cause a selection |
| 3127 | * notification, regardless of if they're in the document which currently has |
| 3128 | * selection!) don't lose the contents of the ``application''? Or should we |
| 3129 | * just put some intelligence in the ``is this a real selection?'' code to |
| 3130 | * protect our selection against clicks in other documents that don't create |
| 3131 | * selections? |
| 3132 | * - maybe we should just never clear the X clipboard? That would make this |
| 3133 | * problem just go away, which is very tempting. |
| 3134 | * |
| 3135 | * On macOS, |
| 3136 | * nsIClipboard::kSelectionCache is the flag for current selection cache. |
| 3137 | * Set the current selection cache on the parent process in |
| 3138 | * widget cocoa nsClipboard whenever selection changes. |
| 3139 | */ |
| 3140 | |
| 3141 | // static |
| 3142 | void AutoCopyListener::OnSelectionChange(Document* aDocument, |
| 3143 | Selection& aSelection, |
| 3144 | int16_t aReason) { |
| 3145 | MOZ_ASSERT(IsEnabled())do { static_assert( mozilla::detail::AssertionConditionType< decltype(IsEnabled())>::isValid, "invalid assertion condition" ); if ((__builtin_expect(!!(!(!!(IsEnabled()))), 0))) { do { } while (false); MOZ_ReportAssertionFailure("IsEnabled()", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 3145); AnnotateMozCrashReason("MOZ_ASSERT" "(" "IsEnabled()" ")"); do { *((volatile int*)__null) = 3145; __attribute__((nomerge )) ::abort(); } while (false); } } while (false); |
| 3146 | |
| 3147 | // For now, we should prevent any updates caused by a call of Selection API. |
| 3148 | // We should allow this in some cases later, though. See the valid usage in |
| 3149 | // bug 1567160. |
| 3150 | if (aReason & nsISelectionListener::JS_REASON) { |
| 3151 | return; |
| 3152 | } |
| 3153 | |
| 3154 | if (sClipboardID == nsIClipboard::kSelectionCache) { |
| 3155 | // Do nothing if this isn't in the active window and, |
| 3156 | // in the case of Web content, in the frontmost tab. |
| 3157 | if (!aDocument || !IsInActiveTab(aDocument)) { |
| 3158 | return; |
| 3159 | } |
| 3160 | } |
| 3161 | |
| 3162 | static const int16_t kResasonsToHandle = |
| 3163 | nsISelectionListener::MOUSEUP_REASON | |
| 3164 | nsISelectionListener::SELECTALL_REASON | |
| 3165 | nsISelectionListener::KEYPRESS_REASON; |
| 3166 | if (!(aReason & kResasonsToHandle)) { |
| 3167 | return; // Don't care if we are still dragging. |
| 3168 | } |
| 3169 | |
| 3170 | if (!aDocument || |
| 3171 | aSelection.AreNormalAndCrossShadowBoundaryRangesCollapsed()) { |
| 3172 | #ifdef DEBUG_CLIPBOARD |
| 3173 | fprintf(stderrstderr, "CLIPBOARD: no selection/collapsed selection\n"); |
| 3174 | #endif |
| 3175 | if (sClipboardID != nsIClipboard::kSelectionCache) { |
| 3176 | // XXX Should we clear X clipboard? |
| 3177 | return; |
| 3178 | } |
| 3179 | |
| 3180 | // If on macOS, clear the current selection transferable cached |
| 3181 | // on the parent process (nsClipboard) when the selection is empty. |
| 3182 | DebugOnly<nsresult> rv = nsCopySupport::ClearSelectionCache(); |
| 3183 | NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1 ))))) { NS_DebugBreak(NS_DEBUG_WARNING, "nsCopySupport::ClearSelectionCache() failed" , "NS_SUCCEEDED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 3184); } } while (false) |
| 3184 | "nsCopySupport::ClearSelectionCache() failed")do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1 ))))) { NS_DebugBreak(NS_DEBUG_WARNING, "nsCopySupport::ClearSelectionCache() failed" , "NS_SUCCEEDED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 3184); } } while (false); |
| 3185 | return; |
| 3186 | } |
| 3187 | |
| 3188 | DebugOnly<nsresult> rv = |
| 3189 | nsCopySupport::EncodeDocumentWithContextAndPutToClipboard( |
| 3190 | &aSelection, aDocument, sClipboardID, false); |
| 3191 | NS_WARNING_ASSERTION(do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1 ))))) { NS_DebugBreak(NS_DEBUG_WARNING, "nsCopySupport::EncodeDocumentWithContextAndPutToClipboard() failed" , "NS_SUCCEEDED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 3193); } } while (false) |
| 3192 | NS_SUCCEEDED(rv),do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1 ))))) { NS_DebugBreak(NS_DEBUG_WARNING, "nsCopySupport::EncodeDocumentWithContextAndPutToClipboard() failed" , "NS_SUCCEEDED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 3193); } } while (false) |
| 3193 | "nsCopySupport::EncodeDocumentWithContextAndPutToClipboard() failed")do { if (!(((bool)(__builtin_expect(!!(!NS_FAILED_impl(rv)), 1 ))))) { NS_DebugBreak(NS_DEBUG_WARNING, "nsCopySupport::EncodeDocumentWithContextAndPutToClipboard() failed" , "NS_SUCCEEDED(rv)", "/var/lib/jenkins/workspace/firefox-scan-build/layout/generic/nsFrameSelection.cpp" , 3193); } } while (false); |
| 3194 | } |