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