/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "AutoRangeArray.h" #include "EditAction.h" #include "EditorDOMPoint.h" // for EditorDOMPoint, EditorDOMRange, etc #include "EditorForwards.h" // for CollectChildrenOptions #include "HTMLEditUtils.h" // for HTMLEditUtils #include "HTMLEditHelpers.h" // for SplitNodeResult #include "TextEditor.h" // for TextEditor #include "WSRunObject.h" // for WSRunScanner #include "mozilla/IntegerRange.h" // for IntegerRange #include "mozilla/OwningNonNull.h" // for OwningNonNull #include "mozilla/dom/Document.h" // for dom::Document #include "mozilla/dom/HTMLBRElement.h" // for dom HTMLBRElement #include "mozilla/dom/Selection.h" // for dom::Selection #include "mozilla/dom/Text.h" // for dom::Text #include "gfxFontUtils.h" // for gfxFontUtils #include "nsError.h" // for NS_SUCCESS_* and NS_ERROR_* #include "nsFrameSelection.h" // for nsFrameSelection #include "nsIContent.h" // for nsIContent #include "nsINode.h" // for nsINode #include "nsRange.h" // for nsRange #include "nsTextFragment.h" // for nsTextFragment namespace mozilla { using namespace dom; using EmptyCheckOption = HTMLEditUtils::EmptyCheckOption; /****************************************************************************** * mozilla::AutoRangeArray *****************************************************************************/ template AutoRangeArray::AutoRangeArray(const EditorDOMRange& aRange); template AutoRangeArray::AutoRangeArray(const EditorRawDOMRange& aRange); template AutoRangeArray::AutoRangeArray(const EditorDOMPoint& aRange); template AutoRangeArray::AutoRangeArray(const EditorRawDOMPoint& aRange); AutoRangeArray::AutoRangeArray(const dom::Selection& aSelection) { Initialize(aSelection); } AutoRangeArray::AutoRangeArray(const AutoRangeArray& aOther) : mAnchorFocusRange(aOther.mAnchorFocusRange), mDirection(aOther.mDirection) { mRanges.SetCapacity(aOther.mRanges.Length()); for (const OwningNonNull& range : aOther.mRanges) { RefPtr clonedRange = range->CloneRange(); mRanges.AppendElement(std::move(clonedRange)); } mAnchorFocusRange = aOther.mAnchorFocusRange; } template AutoRangeArray::AutoRangeArray(const EditorDOMRangeBase& aRange) { MOZ_ASSERT(aRange.IsPositionedAndValid()); RefPtr range = aRange.CreateRange(IgnoreErrors()); if (NS_WARN_IF(!range) || NS_WARN_IF(!range->IsPositioned())) { return; } mRanges.AppendElement(*range); mAnchorFocusRange = std::move(range); } template AutoRangeArray::AutoRangeArray(const EditorDOMPointBase& aPoint) { MOZ_ASSERT(aPoint.IsSetAndValid()); RefPtr range = aPoint.CreateCollapsedRange(IgnoreErrors()); if (NS_WARN_IF(!range) || NS_WARN_IF(!range->IsPositioned())) { return; } mRanges.AppendElement(*range); mAnchorFocusRange = std::move(range); } AutoRangeArray::~AutoRangeArray() { if (mSavedRanges.isSome()) { ClearSavedRanges(); } } AutoRangeArray::AutoRangeArray(nsRange& aRange) { MOZ_ASSERT(aRange.IsPositioned()); if (NS_WARN_IF(!aRange.IsPositioned())) { return; } mRanges.AppendElement(aRange); mAnchorFocusRange = &aRange; } // static bool AutoRangeArray::IsEditableRange(const dom::AbstractRange& aRange, const Element& aEditingHost) { // TODO: Perhaps, we should check whether the start/end boundaries are // first/last point of non-editable element. // See https://github.com/w3c/editing/issues/283#issuecomment-788654850 EditorRawDOMPoint atStart(aRange.StartRef()); const bool isStartEditable = atStart.IsInContentNode() && EditorUtils::IsEditableContent(*atStart.ContainerAs(), EditorUtils::EditorType::HTML) && !HTMLEditUtils::IsNonEditableReplacedContent( *atStart.ContainerAs()); if (!isStartEditable) { return false; } if (aRange.GetStartContainer() != aRange.GetEndContainer()) { EditorRawDOMPoint atEnd(aRange.EndRef()); const bool isEndEditable = atEnd.IsInContentNode() && EditorUtils::IsEditableContent(*atEnd.ContainerAs(), EditorUtils::EditorType::HTML) && !HTMLEditUtils::IsNonEditableReplacedContent( *atEnd.ContainerAs()); if (!isEndEditable) { return false; } // Now, both start and end points are editable, but if they are in // different editing host, we cannot edit the range. if (atStart.ContainerAs() != atEnd.ContainerAs() && atStart.ContainerAs()->GetEditingHost() != atEnd.ContainerAs()->GetEditingHost()) { return false; } } // HTMLEditor does not support modifying outside `` element for now. nsINode* commonAncestor = aRange.GetClosestCommonInclusiveAncestor(); return commonAncestor && commonAncestor->IsContent() && commonAncestor->IsInclusiveDescendantOf(&aEditingHost); } void AutoRangeArray::EnsureOnlyEditableRanges(const Element& aEditingHost) { for (const size_t index : Reversed(IntegerRange(mRanges.Length()))) { const OwningNonNull& range = mRanges[index]; if (!AutoRangeArray::IsEditableRange(range, aEditingHost)) { mRanges.RemoveElementAt(index); continue; } // Special handling for `inert` attribute. If anchor node is inert, the // range should be treated as not editable. nsIContent* anchorContent = mDirection == eDirNext ? nsIContent::FromNode(range->GetStartContainer()) : nsIContent::FromNode(range->GetEndContainer()); if (anchorContent && HTMLEditUtils::ContentIsInert(*anchorContent)) { mRanges.RemoveElementAt(index); continue; } // Additionally, if focus node is inert, the range should be collapsed to // anchor node. nsIContent* focusContent = mDirection == eDirNext ? nsIContent::FromNode(range->GetEndContainer()) : nsIContent::FromNode(range->GetStartContainer()); if (focusContent && focusContent != anchorContent && HTMLEditUtils::ContentIsInert(*focusContent)) { range->Collapse(mDirection == eDirNext); } } mAnchorFocusRange = mRanges.IsEmpty() ? nullptr : mRanges.LastElement().get(); } void AutoRangeArray::EnsureRangesInTextNode(const Text& aTextNode) { auto GetOffsetInTextNode = [&aTextNode](const nsINode* aNode, uint32_t aOffset) -> uint32_t { MOZ_DIAGNOSTIC_ASSERT(aNode); if (aNode == &aTextNode) { return aOffset; } const nsIContent* anonymousDivElement = aTextNode.GetParent(); MOZ_DIAGNOSTIC_ASSERT(anonymousDivElement); MOZ_DIAGNOSTIC_ASSERT(anonymousDivElement->IsHTMLElement(nsGkAtoms::div)); MOZ_DIAGNOSTIC_ASSERT(anonymousDivElement->GetFirstChild() == &aTextNode); if (aNode == anonymousDivElement && aOffset == 0u) { return 0u; // Point before the text node so that use start of the text. } MOZ_DIAGNOSTIC_ASSERT(aNode->IsInclusiveDescendantOf(anonymousDivElement)); // Point after the text node so that use end of the text. return aTextNode.TextDataLength(); }; for (const OwningNonNull& range : mRanges) { if (MOZ_LIKELY(range->GetStartContainer() == &aTextNode && range->GetEndContainer() == &aTextNode)) { continue; } range->SetStartAndEnd( const_cast(&aTextNode), GetOffsetInTextNode(range->GetStartContainer(), range->StartOffset()), const_cast(&aTextNode), GetOffsetInTextNode(range->GetEndContainer(), range->EndOffset())); } if (MOZ_UNLIKELY(mRanges.Length() >= 2)) { // For avoiding to handle same things in same range, we should drop and // merge unnecessary ranges. Note that the ranges never overlap // because selection ranges are not allowed it so that we need to check only // end offset vs start offset of next one. for (const size_t i : Reversed(IntegerRange(mRanges.Length() - 1u))) { MOZ_ASSERT(mRanges[i]->EndOffset() < mRanges[i + 1]->StartOffset()); // XXX Should we delete collapsed range unless the index is 0? Without // Selection API, such situation cannot happen so that `TextEditor` // may behave unexpectedly. if (MOZ_UNLIKELY(mRanges[i]->EndOffset() >= mRanges[i + 1]->StartOffset())) { const uint32_t newEndOffset = mRanges[i + 1]->EndOffset(); mRanges.RemoveElementAt(i + 1); if (MOZ_UNLIKELY(NS_WARN_IF(newEndOffset > mRanges[i]->EndOffset()))) { // So, this case shouldn't happen. mRanges[i]->SetStartAndEnd( const_cast(&aTextNode), mRanges[i]->StartOffset(), const_cast(&aTextNode), newEndOffset); } } } } } Result AutoRangeArray::ExtendAnchorFocusRangeFor( const EditorBase& aEditorBase, nsIEditor::EDirection aDirectionAndAmount) { MOZ_ASSERT(aEditorBase.IsEditActionDataAvailable()); MOZ_ASSERT(mAnchorFocusRange); MOZ_ASSERT(mAnchorFocusRange->IsPositioned()); MOZ_ASSERT(mAnchorFocusRange->StartRef().IsSet()); MOZ_ASSERT(mAnchorFocusRange->EndRef().IsSet()); if (!EditorUtils::IsFrameSelectionRequiredToExtendSelection( aDirectionAndAmount, *this)) { return aDirectionAndAmount; } if (NS_WARN_IF(!aEditorBase.SelectionRef().RangeCount())) { return Err(NS_ERROR_FAILURE); } // By a preceding call of EnsureOnlyEditableRanges(), anchor/focus range may // have been changed. In that case, we cannot use nsFrameSelection anymore. // FIXME: We should make `nsFrameSelection::CreateRangeExtendedToSomewhere` // work without `Selection` instance. if (MOZ_UNLIKELY( aEditorBase.SelectionRef().GetAnchorFocusRange()->StartRef() != mAnchorFocusRange->StartRef() || aEditorBase.SelectionRef().GetAnchorFocusRange()->EndRef() != mAnchorFocusRange->EndRef())) { return aDirectionAndAmount; } RefPtr frameSelection = aEditorBase.SelectionRef().GetFrameSelection(); if (NS_WARN_IF(!frameSelection)) { return Err(NS_ERROR_NOT_INITIALIZED); } RefPtr editingHost; if (aEditorBase.IsHTMLEditor()) { editingHost = aEditorBase.AsHTMLEditor()->ComputeEditingHost(); if (!editingHost) { return Err(NS_ERROR_FAILURE); } } Result, nsresult> result(NS_ERROR_UNEXPECTED); nsIEditor::EDirection directionAndAmountResult = aDirectionAndAmount; switch (aDirectionAndAmount) { case nsIEditor::eNextWord: result = frameSelection->CreateRangeExtendedToNextWordBoundary(); if (NS_WARN_IF(aEditorBase.Destroyed())) { return Err(NS_ERROR_EDITOR_DESTROYED); } NS_WARNING_ASSERTION( result.isOk(), "nsFrameSelection::CreateRangeExtendedToNextWordBoundary() failed"); // DeleteSelectionWithTransaction() doesn't handle these actions // because it's inside batching, so don't confuse it: directionAndAmountResult = nsIEditor::eNone; break; case nsIEditor::ePreviousWord: result = frameSelection->CreateRangeExtendedToPreviousWordBoundary(); if (NS_WARN_IF(aEditorBase.Destroyed())) { return Err(NS_ERROR_EDITOR_DESTROYED); } NS_WARNING_ASSERTION( result.isOk(), "nsFrameSelection::CreateRangeExtendedToPreviousWordBoundary() " "failed"); // DeleteSelectionWithTransaction() doesn't handle these actions // because it's inside batching, so don't confuse it: directionAndAmountResult = nsIEditor::eNone; break; case nsIEditor::eNext: result = frameSelection ->CreateRangeExtendedToNextGraphemeClusterBoundary(); if (NS_WARN_IF(aEditorBase.Destroyed())) { return Err(NS_ERROR_EDITOR_DESTROYED); } NS_WARNING_ASSERTION(result.isOk(), "nsFrameSelection::" "CreateRangeExtendedToNextGraphemeClusterBoundary() " "failed"); // Don't set directionAndAmount to eNone (see Bug 502259) break; case nsIEditor::ePrevious: { // Only extend the selection where the selection is after a UTF-16 // surrogate pair or a variation selector. // For other cases we don't want to do that, in order // to make sure that pressing backspace will only delete the last // typed character. // XXX This is odd if the previous one is a sequence for a grapheme // cluster. const auto atStartOfSelection = GetFirstRangeStartPoint(); if (MOZ_UNLIKELY(NS_WARN_IF(!atStartOfSelection.IsSet()))) { return Err(NS_ERROR_FAILURE); } // node might be anonymous DIV, so we find better text node const EditorDOMPoint insertionPoint = aEditorBase.IsTextEditor() ? aEditorBase.AsTextEditor()->FindBetterInsertionPoint( atStartOfSelection) : atStartOfSelection.GetPointInTextNodeIfPointingAroundTextNode< EditorDOMPoint>(); if (MOZ_UNLIKELY(!insertionPoint.IsSet())) { NS_WARNING( "EditorBase::FindBetterInsertionPoint() failed, but ignored"); return aDirectionAndAmount; } if (!insertionPoint.IsInTextNode()) { return aDirectionAndAmount; } const nsTextFragment* data = &insertionPoint.ContainerAs()->TextFragment(); uint32_t offset = insertionPoint.Offset(); if (!(offset > 1 && data->IsLowSurrogateFollowingHighSurrogateAt(offset - 1)) && !(offset > 0 && gfxFontUtils::IsVarSelector(data->CharAt(offset - 1)))) { return aDirectionAndAmount; } // Different from the `eNext` case, we look for character boundary. // I'm not sure whether this inconsistency between "Delete" and // "Backspace" is intentional or not. result = frameSelection ->CreateRangeExtendedToPreviousCharacterBoundary(); if (NS_WARN_IF(aEditorBase.Destroyed())) { return Err(NS_ERROR_EDITOR_DESTROYED); } NS_WARNING_ASSERTION( result.isOk(), "nsFrameSelection::" "CreateRangeExtendedToPreviousGraphemeClusterBoundary() failed"); break; } case nsIEditor::eToBeginningOfLine: result = frameSelection->CreateRangeExtendedToPreviousHardLineBreak(); if (NS_WARN_IF(aEditorBase.Destroyed())) { return Err(NS_ERROR_EDITOR_DESTROYED); } NS_WARNING_ASSERTION( result.isOk(), "nsFrameSelection::CreateRangeExtendedToPreviousHardLineBreak() " "failed"); directionAndAmountResult = nsIEditor::eNone; break; case nsIEditor::eToEndOfLine: result = frameSelection->CreateRangeExtendedToNextHardLineBreak(); if (NS_WARN_IF(aEditorBase.Destroyed())) { return Err(NS_ERROR_EDITOR_DESTROYED); } NS_WARNING_ASSERTION( result.isOk(), "nsFrameSelection::CreateRangeExtendedToNextHardLineBreak() failed"); directionAndAmountResult = nsIEditor::eNext; break; default: return aDirectionAndAmount; } if (result.isErr()) { return Err(result.inspectErr()); } RefPtr extendedRange(result.unwrap().forget()); if (!extendedRange || NS_WARN_IF(!extendedRange->IsPositioned())) { NS_WARNING("Failed to extend the range, but ignored"); return directionAndAmountResult; } // If the new range isn't editable, keep using the original range. if (aEditorBase.IsHTMLEditor() && !AutoRangeArray::IsEditableRange(*extendedRange, *editingHost)) { return aDirectionAndAmount; } if (NS_WARN_IF(!frameSelection->IsValidSelectionPoint( extendedRange->GetStartContainer())) || NS_WARN_IF(!frameSelection->IsValidSelectionPoint( extendedRange->GetEndContainer()))) { NS_WARNING("A range was extended to outer of selection limiter"); return Err(NS_ERROR_FAILURE); } // Swap focus/anchor range with the extended range. DebugOnly found = false; for (OwningNonNull& range : mRanges) { if (range == mAnchorFocusRange) { range = *extendedRange; found = true; break; } } MOZ_ASSERT(found); mAnchorFocusRange.swap(extendedRange); return directionAndAmountResult; } Result AutoRangeArray::ShrinkRangesIfStartFromOrEndAfterAtomicContent( const HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount, IfSelectingOnlyOneAtomicContent aIfSelectingOnlyOneAtomicContent, const Element* aEditingHost) { if (IsCollapsed()) { return false; } switch (aDirectionAndAmount) { case nsIEditor::eNext: case nsIEditor::eNextWord: case nsIEditor::ePrevious: case nsIEditor::ePreviousWord: break; default: return false; } bool changed = false; for (const OwningNonNull& range : mRanges) { MOZ_ASSERT(!range->IsInAnySelection(), "Changing range in selection may cause running script"); Result result = WSRunScanner::ShrinkRangeIfStartsFromOrEndsAfterAtomicContent( aHTMLEditor, range, aEditingHost); if (result.isErr()) { NS_WARNING( "WSRunScanner::ShrinkRangeIfStartsFromOrEndsAfterAtomicContent() " "failed"); return Err(result.inspectErr()); } changed |= result.inspect(); } if (mRanges.Length() == 1 && aIfSelectingOnlyOneAtomicContent == IfSelectingOnlyOneAtomicContent::Collapse) { MOZ_ASSERT(mRanges[0].get() == mAnchorFocusRange.get()); if (mAnchorFocusRange->GetStartContainer() == mAnchorFocusRange->GetEndContainer() && mAnchorFocusRange->GetChildAtStartOffset() && mAnchorFocusRange->StartRef().GetNextSiblingOfChildAtOffset() == mAnchorFocusRange->GetChildAtEndOffset()) { mAnchorFocusRange->Collapse(aDirectionAndAmount == nsIEditor::eNext || aDirectionAndAmount == nsIEditor::eNextWord); changed = true; } } return changed; } bool AutoRangeArray::SaveAndTrackRanges(HTMLEditor& aHTMLEditor) { if (mSavedRanges.isSome()) { return false; } mSavedRanges.emplace(*this); aHTMLEditor.RangeUpdaterRef().RegisterSelectionState(mSavedRanges.ref()); mTrackingHTMLEditor = &aHTMLEditor; return true; } void AutoRangeArray::ClearSavedRanges() { if (mSavedRanges.isNothing()) { return; } OwningNonNull htmlEditor(std::move(mTrackingHTMLEditor)); MOZ_ASSERT(!mTrackingHTMLEditor); htmlEditor->RangeUpdaterRef().DropSelectionState(mSavedRanges.ref()); mSavedRanges.reset(); } // static void AutoRangeArray:: UpdatePointsToSelectAllChildrenIfCollapsedInEmptyBlockElement( EditorDOMPoint& aStartPoint, EditorDOMPoint& aEndPoint, const Element& aEditingHost) { // FYI: This was moved from // https://searchfox.org/mozilla-central/rev/3419858c997f422e3e70020a46baae7f0ec6dacc/editor/libeditor/HTMLEditSubActionHandler.cpp#6743 // MOOSE major hack: // The GetPointAtFirstContentOfLineOrParentBlockIfFirstContentOfBlock() and // GetPointAfterFollowingLineBreakOrAtFollowingBlock() don't really do the // right thing for collapsed ranges inside block elements that contain nothing // but a solo
. It's easier/ to put a workaround here than to revamp // them. :-( if (aStartPoint != aEndPoint) { return; } if (!aStartPoint.IsInContentNode()) { return; } // XXX Perhaps, this should be more careful. This may not select only one // node because this just check whether the block is empty or not, // and may not select in non-editable block. However, for inline // editing host case, it's right to look for block element without // editable state check. Now, this method is used for preparation for // other things. So, cannot write test for this method behavior. // So, perhaps, we should get rid of this method and each caller should // handle its job better. Element* const maybeNonEditableBlockElement = HTMLEditUtils::GetInclusiveAncestorElement( *aStartPoint.ContainerAs(), HTMLEditUtils::ClosestBlockElement, BlockInlineCheck::UseComputedDisplayStyle); if (!maybeNonEditableBlockElement) { return; } // Make sure we don't go higher than our root element in the content tree if (aEditingHost.IsInclusiveDescendantOf(maybeNonEditableBlockElement)) { return; } if (HTMLEditUtils::IsEmptyNode( *maybeNonEditableBlockElement, {EmptyCheckOption::TreatNonEditableContentAsInvisible})) { aStartPoint.Set(maybeNonEditableBlockElement, 0u); aEndPoint.SetToEndOf(maybeNonEditableBlockElement); } } /** * Get the point before the line containing aPointInLine. * * @return If the line starts after a `
` element, returns next * sibling of the `
` element. * If the line is first line of a block, returns point of * the block. * NOTE: The result may be point of editing host. I.e., the container may be * outside of editing host. */ static EditorDOMPoint GetPointAtFirstContentOfLineOrParentHTMLBlockIfFirstContentOfBlock( const EditorDOMPoint& aPointInLine, EditSubAction aEditSubAction, BlockInlineCheck aBlockInlineCheck, const Element& aEditingHost) { // FYI: This was moved from // https://searchfox.org/mozilla-central/rev/3419858c997f422e3e70020a46baae7f0ec6dacc/editor/libeditor/HTMLEditSubActionHandler.cpp#6447 if (NS_WARN_IF(!aPointInLine.IsSet())) { return EditorDOMPoint(); } EditorDOMPoint point(aPointInLine); // Start scanning from the container node if aPoint is in a text node. // XXX Perhaps, IsInDataNode() must be expected. if (point.IsInTextNode()) { if (!point.GetContainer()->GetParentNode()) { // Okay, can't promote any further // XXX Why don't we return start of the text node? return point; } // If there is a preformatted linefeed in the text node, let's return // the point after it. EditorDOMPoint atLastPreformattedNewLine = HTMLEditUtils::GetPreviousPreformattedNewLineInTextNode( point); if (atLastPreformattedNewLine.IsSet()) { return atLastPreformattedNewLine.NextPoint(); } point.Set(point.GetContainer()); } // Look back through any further inline nodes that aren't across a
// from us, and that are enclosed in the same block. // I.e., looking for start of current hard line. constexpr HTMLEditUtils::WalkTreeOptions ignoreNonEditableNodeAndStopAtBlockBoundary{ HTMLEditUtils::WalkTreeOption::IgnoreNonEditableNode, HTMLEditUtils::WalkTreeOption::StopAtBlockBoundary}; for (nsIContent* previousEditableContent = HTMLEditUtils::GetPreviousContent( point, ignoreNonEditableNodeAndStopAtBlockBoundary, aBlockInlineCheck, &aEditingHost); previousEditableContent && previousEditableContent->GetParentNode() && !HTMLEditUtils::IsVisibleBRElement(*previousEditableContent) && !HTMLEditUtils::IsBlockElement(*previousEditableContent, aBlockInlineCheck); previousEditableContent = HTMLEditUtils::GetPreviousContent( point, ignoreNonEditableNodeAndStopAtBlockBoundary, aBlockInlineCheck, &aEditingHost)) { EditorDOMPoint atLastPreformattedNewLine = HTMLEditUtils::GetPreviousPreformattedNewLineInTextNode( EditorRawDOMPoint::AtEndOf(*previousEditableContent)); if (atLastPreformattedNewLine.IsSet()) { return atLastPreformattedNewLine.NextPoint(); } point.Set(previousEditableContent); } // Finding the real start for this point unless current line starts after //
element. Look up the tree for as long as we are the first node in // the container (typically, start of nearest block ancestor), and as long // as we haven't hit the body node. for (nsIContent* nearContent = HTMLEditUtils::GetPreviousContent( point, ignoreNonEditableNodeAndStopAtBlockBoundary, aBlockInlineCheck, &aEditingHost); !nearContent && !point.IsContainerHTMLElement(nsGkAtoms::body) && point.GetContainerParent(); nearContent = HTMLEditUtils::GetPreviousContent( point, ignoreNonEditableNodeAndStopAtBlockBoundary, aBlockInlineCheck, &aEditingHost)) { // Don't keep looking up if we have found a blockquote element to act on // when we handle outdent. // XXX Sounds like this is hacky. If possible, it should be check in // outdent handler for consistency between edit sub-actions. // We should check Chromium's behavior of outdent when Selection // starts from `
` and starts from first child of // `
`. if (aEditSubAction == EditSubAction::eOutdent && point.IsContainerHTMLElement(nsGkAtoms::blockquote)) { break; } // Don't walk past the editable section. Note that we need to check // before walking up to a parent because we need to return the parent // object, so the parent itself might not be in the editable area, but // it's OK if we're not performing a block-level action. bool blockLevelAction = aEditSubAction == EditSubAction::eIndent || aEditSubAction == EditSubAction::eOutdent || aEditSubAction == EditSubAction::eSetOrClearAlignment || aEditSubAction == EditSubAction::eCreateOrRemoveBlock || aEditSubAction == EditSubAction::eFormatBlockForHTMLCommand; // XXX So, does this check whether the container is removable or not? It // seems that here can be rewritten as obviously what here tries to // check. if (!point.GetContainerParent()->IsInclusiveDescendantOf(&aEditingHost) && (blockLevelAction || !point.GetContainer()->IsInclusiveDescendantOf(&aEditingHost))) { break; } // If we're formatting a block, we should reformat first ancestor format // block. if (aEditSubAction == EditSubAction::eFormatBlockForHTMLCommand && HTMLEditUtils::IsFormatElementForFormatBlockCommand( *point.ContainerAs())) { point.Set(point.GetContainer()); break; } point.Set(point.GetContainer()); } return point; } /** * Get the point after the following line break or the block which breaks the * line containing aPointInLine. * * @return If the line ends with a visible `
` element, returns * the point after the `
` element. * If the line ends with a preformatted linefeed, returns * the point after the linefeed unless it's an invisible * line break immediately before a block boundary. * If the line ends with a block boundary, returns the * point of the block. */ static EditorDOMPoint GetPointAfterFollowingLineBreakOrAtFollowingHTMLBlock( const EditorDOMPoint& aPointInLine, EditSubAction aEditSubAction, BlockInlineCheck aBlockInlineCheck, const Element& aEditingHost) { // FYI: This was moved from // https://searchfox.org/mozilla-central/rev/3419858c997f422e3e70020a46baae7f0ec6dacc/editor/libeditor/HTMLEditSubActionHandler.cpp#6541 if (NS_WARN_IF(!aPointInLine.IsSet())) { return EditorDOMPoint(); } EditorDOMPoint point(aPointInLine); // Start scanning from the container node if aPoint is in a text node. // XXX Perhaps, IsInDataNode() must be expected. if (point.IsInTextNode()) { if (NS_WARN_IF(!point.GetContainer()->GetParentNode())) { // Okay, can't promote any further // XXX Why don't we return end of the text node? return point; } EditorDOMPoint atNextPreformattedNewLine = HTMLEditUtils::GetInclusiveNextPreformattedNewLineInTextNode< EditorDOMPoint>(point); if (atNextPreformattedNewLine.IsSet()) { // If the linefeed is last character of the text node, it may be // invisible if it's immediately before a block boundary. In such // case, we should return the block boundary. Element* maybeNonEditableBlockElement = nullptr; if (HTMLEditUtils::IsInvisiblePreformattedNewLine( atNextPreformattedNewLine, &maybeNonEditableBlockElement) && maybeNonEditableBlockElement) { // If the block is a parent of the editing host, let's return end // of editing host. if (maybeNonEditableBlockElement == &aEditingHost || !maybeNonEditableBlockElement->IsInclusiveDescendantOf( &aEditingHost)) { return EditorDOMPoint::AtEndOf(*maybeNonEditableBlockElement); } // If it's invisible because of parent block boundary, return end // of the block. Otherwise, i.e., it's followed by a child block, // returns the point of the child block. if (atNextPreformattedNewLine.ContainerAs() ->IsInclusiveDescendantOf(maybeNonEditableBlockElement)) { return EditorDOMPoint::AtEndOf(*maybeNonEditableBlockElement); } return EditorDOMPoint(maybeNonEditableBlockElement); } // Otherwise, return the point after the preformatted linefeed. return atNextPreformattedNewLine.NextPoint(); } // want to be after the text node point.SetAfter(point.GetContainer()); NS_WARNING_ASSERTION(point.IsSet(), "Failed to set to after the text node"); } // Look ahead through any further inline nodes that aren't across a
from // us, and that are enclosed in the same block. // XXX Currently, we stop block-extending when finding visible
element. // This might be different from "block-extend" of execCommand spec. // However, the spec is really unclear. // XXX Probably, scanning only editable nodes is wrong for // EditSubAction::eCreateOrRemoveBlock and // EditSubAction::eFormatBlockForHTMLCommand because it might be better to // wrap existing inline elements even if it's non-editable. For example, // following examples with insertParagraph causes different result: // *
foo[]bar
// *
foo[]bar
// *
foo[]barbaz
// Only in the first case, after the caret position isn't wrapped with // new
element. constexpr HTMLEditUtils::WalkTreeOptions ignoreNonEditableNodeAndStopAtBlockBoundary{ HTMLEditUtils::WalkTreeOption::IgnoreNonEditableNode, HTMLEditUtils::WalkTreeOption::StopAtBlockBoundary}; for (nsIContent* nextEditableContent = HTMLEditUtils::GetNextContent( point, ignoreNonEditableNodeAndStopAtBlockBoundary, aBlockInlineCheck, &aEditingHost); nextEditableContent && !HTMLEditUtils::IsBlockElement(*nextEditableContent, aBlockInlineCheck) && nextEditableContent->GetParent(); nextEditableContent = HTMLEditUtils::GetNextContent( point, ignoreNonEditableNodeAndStopAtBlockBoundary, aBlockInlineCheck, &aEditingHost)) { EditorDOMPoint atFirstPreformattedNewLine = HTMLEditUtils::GetInclusiveNextPreformattedNewLineInTextNode< EditorDOMPoint>(EditorRawDOMPoint(nextEditableContent, 0)); if (atFirstPreformattedNewLine.IsSet()) { // If the linefeed is last character of the text node, it may be // invisible if it's immediately before a block boundary. In such // case, we should return the block boundary. Element* maybeNonEditableBlockElement = nullptr; if (HTMLEditUtils::IsInvisiblePreformattedNewLine( atFirstPreformattedNewLine, &maybeNonEditableBlockElement) && maybeNonEditableBlockElement) { // If the block is a parent of the editing host, let's return end // of editing host. if (maybeNonEditableBlockElement == &aEditingHost || !maybeNonEditableBlockElement->IsInclusiveDescendantOf( &aEditingHost)) { return EditorDOMPoint::AtEndOf(*maybeNonEditableBlockElement); } // If it's invisible because of parent block boundary, return end // of the block. Otherwise, i.e., it's followed by a child block, // returns the point of the child block. if (atFirstPreformattedNewLine.ContainerAs() ->IsInclusiveDescendantOf(maybeNonEditableBlockElement)) { return EditorDOMPoint::AtEndOf(*maybeNonEditableBlockElement); } return EditorDOMPoint(maybeNonEditableBlockElement); } // Otherwise, return the point after the preformatted linefeed. return atFirstPreformattedNewLine.NextPoint(); } point.SetAfter(nextEditableContent); if (NS_WARN_IF(!point.IsSet())) { break; } if (HTMLEditUtils::IsVisibleBRElement(*nextEditableContent)) { break; } } // Finding the real end for this point unless current line ends with a
// element. Look up the tree for as long as we are the last node in the // container (typically, block node), and as long as we haven't hit the body // node. for (nsIContent* nearContent = HTMLEditUtils::GetNextContent( point, ignoreNonEditableNodeAndStopAtBlockBoundary, aBlockInlineCheck, &aEditingHost); !nearContent && !point.IsContainerHTMLElement(nsGkAtoms::body) && point.GetContainerParent(); nearContent = HTMLEditUtils::GetNextContent( point, ignoreNonEditableNodeAndStopAtBlockBoundary, aBlockInlineCheck, &aEditingHost)) { // Don't walk past the editable section. Note that we need to check before // walking up to a parent because we need to return the parent object, so // the parent itself might not be in the editable area, but it's OK. // XXX Maybe returning parent of editing host is really error prone since // everybody need to check whether the end point is in editing host // when they touch there. if (!point.GetContainer()->IsInclusiveDescendantOf(&aEditingHost) && !point.GetContainerParent()->IsInclusiveDescendantOf(&aEditingHost)) { break; } // If we're formatting a block, we should reformat first ancestor format // block. if (aEditSubAction == EditSubAction::eFormatBlockForHTMLCommand && HTMLEditUtils::IsFormatElementForFormatBlockCommand( *point.ContainerAs())) { point.SetAfter(point.GetContainer()); break; } point.SetAfter(point.GetContainer()); if (NS_WARN_IF(!point.IsSet())) { break; } } return point; } void AutoRangeArray::ExtendRangesToWrapLines(EditSubAction aEditSubAction, BlockInlineCheck aBlockInlineCheck, const Element& aEditingHost) { // FYI: This is originated in // https://searchfox.org/mozilla-central/rev/1739f1301d658c9bff544a0a095ab11fca2e549d/editor/libeditor/HTMLEditSubActionHandler.cpp#6712 bool removeSomeRanges = false; for (const OwningNonNull& range : mRanges) { // Remove non-positioned ranges. if (MOZ_UNLIKELY(!range->IsPositioned())) { removeSomeRanges = true; continue; } // If the range is native anonymous subtrees, we must meet a bug of // `Selection` so that we need to hack here. if (MOZ_UNLIKELY(range->GetStartContainer()->IsInNativeAnonymousSubtree() || range->GetEndContainer()->IsInNativeAnonymousSubtree())) { EditorRawDOMRange rawRange(range); if (!rawRange.EnsureNotInNativeAnonymousSubtree()) { range->Reset(); removeSomeRanges = true; continue; } if (NS_FAILED( range->SetStartAndEnd(rawRange.StartRef().ToRawRangeBoundary(), rawRange.EndRef().ToRawRangeBoundary())) || MOZ_UNLIKELY(!range->IsPositioned())) { range->Reset(); removeSomeRanges = true; continue; } } // Finally, extend the range. if (NS_FAILED(ExtendRangeToWrapStartAndEndLinesContainingBoundaries( range, aEditSubAction, aBlockInlineCheck, aEditingHost))) { // If we failed to extend the range, we should use the original range // as-is unless the range is broken at setting the range. if (NS_WARN_IF(!range->IsPositioned())) { removeSomeRanges = true; } } } if (removeSomeRanges) { for (const size_t i : Reversed(IntegerRange(mRanges.Length()))) { if (!mRanges[i]->IsPositioned()) { mRanges.RemoveElementAt(i); } } if (!mAnchorFocusRange || !mAnchorFocusRange->IsPositioned()) { if (mRanges.IsEmpty()) { mAnchorFocusRange = nullptr; } else { mAnchorFocusRange = mRanges.LastElement(); } } } } // static nsresult AutoRangeArray::ExtendRangeToWrapStartAndEndLinesContainingBoundaries( nsRange& aRange, EditSubAction aEditSubAction, BlockInlineCheck aBlockInlineCheck, const Element& aEditingHost) { MOZ_DIAGNOSTIC_ASSERT( !EditorRawDOMPoint(aRange.StartRef()).IsInNativeAnonymousSubtree()); MOZ_DIAGNOSTIC_ASSERT( !EditorRawDOMPoint(aRange.EndRef()).IsInNativeAnonymousSubtree()); if (NS_WARN_IF(!aRange.IsPositioned())) { return NS_ERROR_INVALID_ARG; } EditorDOMPoint startPoint(aRange.StartRef()), endPoint(aRange.EndRef()); // If we're joining blocks, we call this for selecting a line to move. // Therefore, we don't want to select the ancestor blocks in this case // even if they are empty. if (aEditSubAction != EditSubAction::eMergeBlockContents) { AutoRangeArray:: UpdatePointsToSelectAllChildrenIfCollapsedInEmptyBlockElement( startPoint, endPoint, aEditingHost); } // Make a new adjusted range to represent the appropriate block content. // This is tricky. The basic idea is to push out the range endpoints to // truly enclose the blocks that we will affect. // Make sure that the new range ends up to be in the editable section. // XXX Looks like that this check wastes the time. Perhaps, we should // implement a method which checks both two DOM points in the editor // root. startPoint = GetPointAtFirstContentOfLineOrParentHTMLBlockIfFirstContentOfBlock( startPoint, aEditSubAction, aBlockInlineCheck, aEditingHost); // XXX GetPointAtFirstContentOfLineOrParentBlockIfFirstContentOfBlock() may // return point of editing host. Perhaps, we should change it and stop // checking it here since this check may be expensive. // XXX If the container is an element in the editing host but it points end of // the container, this returns nullptr. Is it intentional? if (!startPoint.GetChildOrContainerIfDataNode() || !startPoint.GetChildOrContainerIfDataNode()->IsInclusiveDescendantOf( &aEditingHost)) { return NS_ERROR_FAILURE; } endPoint = GetPointAfterFollowingLineBreakOrAtFollowingHTMLBlock( endPoint, aEditSubAction, aBlockInlineCheck, aEditingHost); const EditorDOMPoint lastRawPoint = endPoint.IsStartOfContainer() ? endPoint : endPoint.PreviousPoint(); // XXX GetPointAfterFollowingLineBreakOrAtFollowingBlock() may return point of // editing host. Perhaps, we should change it and stop checking it here // since this check may be expensive. // XXX If the container is an element in the editing host but it points end of // the container, this returns nullptr. Is it intentional? if (!lastRawPoint.GetChildOrContainerIfDataNode() || !lastRawPoint.GetChildOrContainerIfDataNode()->IsInclusiveDescendantOf( &aEditingHost)) { return NS_ERROR_FAILURE; } nsresult rv = aRange.SetStartAndEnd(startPoint.ToRawRangeBoundary(), endPoint.ToRawRangeBoundary()); if (NS_FAILED(rv)) { return NS_ERROR_FAILURE; } return NS_OK; } Result AutoRangeArray::SplitTextAtEndBoundariesAndInlineAncestorsAtBothBoundaries( HTMLEditor& aHTMLEditor, BlockInlineCheck aBlockInlineCheck, const Element& aEditingHost, const nsIContent* aAncestorLimiter /* = nullptr */) { // FYI: The following code is originated in // https://searchfox.org/mozilla-central/rev/c8e15e17bc6fd28f558c395c948a6251b38774ff/editor/libeditor/HTMLEditSubActionHandler.cpp#6971 // Split text nodes. This is necessary, since given ranges may end in text // nodes in case where part of a pre-formatted elements needs to be moved. EditorDOMPoint pointToPutCaret; IgnoredErrorResult ignoredError; for (const OwningNonNull& range : mRanges) { EditorDOMPoint atEnd(range->EndRef()); if (NS_WARN_IF(!atEnd.IsSet()) || !atEnd.IsInTextNode() || atEnd.GetContainer() == aAncestorLimiter) { continue; } if (!atEnd.IsStartOfContainer() && !atEnd.IsEndOfContainer()) { // Split the text node. Result splitAtEndResult = aHTMLEditor.SplitNodeWithTransaction(atEnd); if (MOZ_UNLIKELY(splitAtEndResult.isErr())) { NS_WARNING("HTMLEditor::SplitNodeWithTransaction() failed"); return splitAtEndResult.propagateErr(); } SplitNodeResult unwrappedSplitAtEndResult = splitAtEndResult.unwrap(); unwrappedSplitAtEndResult.MoveCaretPointTo( pointToPutCaret, {SuggestCaret::OnlyIfHasSuggestion}); // Correct the range. // The new end parent becomes the parent node of the text. MOZ_ASSERT(!range->IsInAnySelection()); range->SetEnd(unwrappedSplitAtEndResult.AtNextContent() .ToRawRangeBoundary(), ignoredError); NS_WARNING_ASSERTION(!ignoredError.Failed(), "nsRange::SetEnd() failed, but ignored"); ignoredError.SuppressException(); } } // FYI: The following code is originated in // https://searchfox.org/mozilla-central/rev/c8e15e17bc6fd28f558c395c948a6251b38774ff/editor/libeditor/HTMLEditSubActionHandler.cpp#7023 AutoTArray, 8> rangeItemArray; rangeItemArray.AppendElements(mRanges.Length()); // First register ranges for special editor gravity Maybe anchorFocusRangeIndex; for (const size_t index : IntegerRange(rangeItemArray.Length())) { rangeItemArray[index] = new RangeItem(); rangeItemArray[index]->StoreRange(*mRanges[index]); aHTMLEditor.RangeUpdaterRef().RegisterRangeItem(*rangeItemArray[index]); if (mRanges[index] == mAnchorFocusRange) { anchorFocusRangeIndex = Some(index); } } // TODO: We should keep the array, and just update the ranges. mRanges.Clear(); mAnchorFocusRange = nullptr; // Now bust up inlines. nsresult rv = NS_OK; for (const OwningNonNull& item : Reversed(rangeItemArray)) { // MOZ_KnownLive because 'rangeItemArray' is guaranteed to keep it alive. Result splitParentsResult = aHTMLEditor.SplitInlineAncestorsAtRangeBoundaries( MOZ_KnownLive(*item), aBlockInlineCheck, aEditingHost, aAncestorLimiter); if (MOZ_UNLIKELY(splitParentsResult.isErr())) { NS_WARNING("HTMLEditor::SplitInlineAncestorsAtRangeBoundaries() failed"); rv = splitParentsResult.unwrapErr(); break; } if (splitParentsResult.inspect().IsSet()) { pointToPutCaret = splitParentsResult.unwrap(); } } // Then unregister the ranges for (const size_t index : IntegerRange(rangeItemArray.Length())) { aHTMLEditor.RangeUpdaterRef().DropRangeItem(rangeItemArray[index]); RefPtr range = rangeItemArray[index]->GetRange(); if (range && range->IsPositioned()) { if (anchorFocusRangeIndex.isSome() && index == *anchorFocusRangeIndex) { mAnchorFocusRange = range; } mRanges.AppendElement(std::move(range)); } } if (!mAnchorFocusRange && !mRanges.IsEmpty()) { mAnchorFocusRange = mRanges.LastElement(); } // XXX Why do we ignore the other errors here?? if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) { return Err(NS_ERROR_EDITOR_DESTROYED); } return pointToPutCaret; } nsresult AutoRangeArray::CollectEditTargetNodes( const HTMLEditor& aHTMLEditor, nsTArray>& aOutArrayOfContents, EditSubAction aEditSubAction, CollectNonEditableNodes aCollectNonEditableNodes) const { MOZ_ASSERT(aHTMLEditor.IsEditActionDataAvailable()); // FYI: This was moved from // https://searchfox.org/mozilla-central/rev/4bce7d85ba4796dd03c5dcc7cfe8eee0e4c07b3b/editor/libeditor/HTMLEditSubActionHandler.cpp#7060 // Gather up a list of all the nodes for (const OwningNonNull& range : mRanges) { DOMSubtreeIterator iter; nsresult rv = iter.Init(*range); if (NS_FAILED(rv)) { NS_WARNING("DOMSubtreeIterator::Init() failed"); return rv; } if (aOutArrayOfContents.IsEmpty()) { iter.AppendAllNodesToArray(aOutArrayOfContents); } else { AutoTArray, 24> arrayOfTopChildren; iter.AppendNodesToArray( +[](nsINode& aNode, void* aArray) -> bool { MOZ_ASSERT(aArray); return !static_cast>*>(aArray) ->Contains(&aNode); }, arrayOfTopChildren, &aOutArrayOfContents); aOutArrayOfContents.AppendElements(std::move(arrayOfTopChildren)); } if (aCollectNonEditableNodes == CollectNonEditableNodes::No) { for (const size_t i : Reversed(IntegerRange(aOutArrayOfContents.Length()))) { if (!EditorUtils::IsEditableContent(aOutArrayOfContents[i], EditorUtils::EditorType::HTML)) { aOutArrayOfContents.RemoveElementAt(i); } } } } switch (aEditSubAction) { case EditSubAction::eCreateOrRemoveBlock: case EditSubAction::eFormatBlockForHTMLCommand: { // Certain operations should not act on li's and td's, but rather inside // them. Alter the list as needed. CollectChildrenOptions options = { CollectChildrenOption::CollectListChildren, CollectChildrenOption::CollectTableChildren}; if (aCollectNonEditableNodes == CollectNonEditableNodes::No) { options += CollectChildrenOption::IgnoreNonEditableChildren; } if (aEditSubAction == EditSubAction::eCreateOrRemoveBlock) { for (const size_t index : Reversed(IntegerRange(aOutArrayOfContents.Length()))) { OwningNonNull content = aOutArrayOfContents[index]; if (HTMLEditUtils::IsListItem(content)) { aOutArrayOfContents.RemoveElementAt(index); HTMLEditUtils::CollectChildren(*content, aOutArrayOfContents, index, options); } } } else { //
and
are format blocks. Therefore, we should not handle // their children directly. They should be replaced with new format // block. MOZ_ASSERT( HTMLEditUtils::IsFormatTagForFormatBlockCommand(*nsGkAtoms::dt)); MOZ_ASSERT( HTMLEditUtils::IsFormatTagForFormatBlockCommand(*nsGkAtoms::dd)); for (const size_t index : Reversed(IntegerRange(aOutArrayOfContents.Length()))) { OwningNonNull content = aOutArrayOfContents[index]; MOZ_ASSERT_IF(HTMLEditUtils::IsListItem(content), content->IsAnyOfHTMLElements( nsGkAtoms::dd, nsGkAtoms::dt, nsGkAtoms::li)); if (content->IsHTMLElement(nsGkAtoms::li)) { aOutArrayOfContents.RemoveElementAt(index); HTMLEditUtils::CollectChildren(*content, aOutArrayOfContents, index, options); } } } // Empty text node shouldn't be selected if unnecessary for (const size_t index : Reversed(IntegerRange(aOutArrayOfContents.Length()))) { if (const Text* text = aOutArrayOfContents[index]->GetAsText()) { // Don't select empty text except to empty block if (!HTMLEditUtils::IsVisibleTextNode(*text)) { aOutArrayOfContents.RemoveElementAt(index); } } } break; } case EditSubAction::eCreateOrChangeList: { // XXX aCollectNonEditableNodes is ignored here. Maybe a bug. CollectChildrenOptions options = { CollectChildrenOption::CollectTableChildren}; for (const size_t index : Reversed(IntegerRange(aOutArrayOfContents.Length()))) { // Scan for table elements. If we find table elements other than // table, replace it with a list of any editable non-table content // because if a selection range starts from end in a table-cell and // ends at or starts from outside the ``, we need to make // lists in each selected table-cells. OwningNonNull content = aOutArrayOfContents[index]; if (HTMLEditUtils::IsAnyTableElementButNotTable(content)) { aOutArrayOfContents.RemoveElementAt(index); HTMLEditUtils::CollectChildren(content, aOutArrayOfContents, index, options); } } // If there is only one node in the array, and it is a `
`, // `
` or a list element, then look inside of it until we // find inner list or content. if (aOutArrayOfContents.Length() != 1) { break; } Element* deepestDivBlockquoteOrListElement = HTMLEditUtils::GetInclusiveDeepestFirstChildWhichHasOneChild( aOutArrayOfContents[0], {HTMLEditUtils::WalkTreeOption::IgnoreNonEditableNode}, BlockInlineCheck::Unused, nsGkAtoms::div, nsGkAtoms::blockquote, nsGkAtoms::ul, nsGkAtoms::ol, nsGkAtoms::dl); if (!deepestDivBlockquoteOrListElement) { break; } if (deepestDivBlockquoteOrListElement->IsAnyOfHTMLElements( nsGkAtoms::div, nsGkAtoms::blockquote)) { aOutArrayOfContents.Clear(); // XXX Before we're called, non-editable nodes are ignored. However, // we may append non-editable nodes here. HTMLEditUtils::CollectChildren(*deepestDivBlockquoteOrListElement, aOutArrayOfContents, 0, {}); break; } aOutArrayOfContents.ReplaceElementAt( 0, OwningNonNull(*deepestDivBlockquoteOrListElement)); break; } case EditSubAction::eOutdent: case EditSubAction::eIndent: case EditSubAction::eSetPositionToAbsolute: { // Indent/outdent already do something special for list items, but we // still need to make sure we don't act on table elements CollectChildrenOptions options = { CollectChildrenOption::CollectListChildren, CollectChildrenOption::CollectTableChildren}; if (aCollectNonEditableNodes == CollectNonEditableNodes::No) { options += CollectChildrenOption::IgnoreNonEditableChildren; } for (const size_t index : Reversed(IntegerRange(aOutArrayOfContents.Length()))) { OwningNonNull content = aOutArrayOfContents[index]; if (HTMLEditUtils::IsAnyTableElementButNotTable(content)) { aOutArrayOfContents.RemoveElementAt(index); HTMLEditUtils::CollectChildren(*content, aOutArrayOfContents, index, options); } } break; } default: break; } // Outdent should look inside of divs. if (aEditSubAction == EditSubAction::eOutdent && !aHTMLEditor.IsCSSEnabled()) { CollectChildrenOptions options = {}; if (aCollectNonEditableNodes == CollectNonEditableNodes::No) { options += CollectChildrenOption::IgnoreNonEditableChildren; } for (const size_t index : Reversed(IntegerRange(aOutArrayOfContents.Length()))) { OwningNonNull content = aOutArrayOfContents[index]; if (content->IsHTMLElement(nsGkAtoms::div)) { aOutArrayOfContents.RemoveElementAt(index); HTMLEditUtils::CollectChildren(*content, aOutArrayOfContents, index, options); } } } return NS_OK; } Element* AutoRangeArray::GetClosestAncestorAnyListElementOfRange() const { for (const OwningNonNull& range : mRanges) { nsINode* commonAncestorNode = range->GetClosestCommonInclusiveAncestor(); if (MOZ_UNLIKELY(!commonAncestorNode)) { continue; } for (Element* const element : commonAncestorNode->InclusiveAncestorsOfType()) { if (HTMLEditUtils::IsAnyListElement(element)) { return element; } } } return nullptr; } } // namespace mozilla