Bug 1658536 - part 1: Move methods called by `HTMLEditor::HandleDeleteSelectionInternal()` to `AutoDeleteRangesHandler` r=m_kato

This patch just moves them into the new stack only class and make each of them
take `HTMLEditor&` as their first argument.

Differential Revision: https://phabricator.services.mozilla.com/D87432
This commit is contained in:
Masayuki Nakano 2020-08-24 00:52:44 +00:00
Родитель 0882201445
Коммит cfc4ba0b10
2 изменённых файлов: 339 добавлений и 299 удалений

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@ -2350,6 +2350,182 @@ EditActionResult HTMLEditor::SplitMailCiteElements(
return EditActionHandled();
}
/**
* AutoDeleteRangesHandler class handles deleting ranges in HTMLEditor.
*/
class MOZ_STACK_CLASS HTMLEditor::AutoDeleteRangesHandler final {
public:
/**
* HandleDeleteAroundCollapsedRanges() handles deletion with collapsed
* ranges. Callers must guarantee that this is called only when
* aRangesToDelete.IsCollapsed() returns true.
*
* @param aDirectionAndAmount Direction of the deletion.
* @param aStripWrappers Must be eStrip or eNoStrip.
* @param aRangesToDelete Ranges to delete. This `IsCollapsed()` must
* return true.
* @param aWSRunScannerAtCaret Scanner instance which scanned from
* caret point.
* @param aScanFromCaretPointResult Scan result of aWSRunScannerAtCaret
* toward aDirectionAndAmount.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteAroundCollapsedRanges(
HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
nsIEditor::EStripWrappers aStripWrappers, AutoRangeArray& aRangesToDelete,
const WSRunScanner& aWSRunScannerAtCaret,
const WSScanResult& aScanFromCaretPointResult);
/**
* HandleDeleteNonCollapsedRanges() handles deletion with non-collapsed
* ranges. Callers must guarantee that this is called only when
* aRangesToDelete.IsCollapsed() returns false.
*
* @param aDirectionAndAmount Direction of the deletion.
* @param aStripWrappers Must be eStrip or eNoStrip.
* @param aRangesToDelete The ranges to delete.
* @param aSelectionWasCollapsed If the caller extended `Selection`
* from collapsed, set this to `Yes`.
* Otherwise, i.e., `Selection` is not
* collapsed from the beginning, set
* this to `No`.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteNonCollapsedRanges(HTMLEditor& aHTMLEditor,
nsIEditor::EDirection aDirectionAndAmount,
nsIEditor::EStripWrappers aStripWrappers,
AutoRangeArray& aRangesToDelete,
SelectionWasCollapsed aSelectionWasCollapsed);
private:
/**
* HandleDeleteTextAroundCollapsedSelection() handles deletion of
* collapsed selection in a text node.
*
* @param aDirectionAndAmount Must be eNext or ePrevious.
* @param aCaretPoisition The position where caret is. This container
* must be a text node.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteTextAroundCollapsedSelection(
HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
const EditorDOMPoint& aCaretPosition);
/**
* HandleDeleteCollapsedSelectionAtWhiteSpaces() handles deletion of
* collapsed selection at white-spaces in a text node.
*
* @param aDirectionAndAmount Direction of the deletion.
* @param aPointToDelete The point to delete. I.e., typically, caret
* position.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteCollapsedSelectionAtWhiteSpaces(
HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
const EditorDOMPoint& aPointToDelete);
/**
* HandleDeleteCollapsedSelectionAtVisibleChar() handles deletion of
* collapsed selection in a text node.
*
* @param aDirectionAndAmount Direction of the deletion.
* @param aPointToDelete The point in a text node to delete character(s).
* Caller must guarantee that this is in a text
* node.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteCollapsedSelectionAtVisibleChar(
HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
const EditorDOMPoint& aPointToDelete);
/**
* HandleDeleteCollapsedSelectionAtAtomicContent() handles deletion of
* atomic elements like `<br>`, `<hr>`, `<img>`, `<input>`, etc and
* data nodes except text node (e.g., comment node).
* Note that don't call this directly with `<hr>` element. Instead, call
* `HandleDeleteCollapsedSelectionAtHRElement()`.
* Note that don't call this for invisible `<br>` element.
*
* @param aAtomicContent The atomic content to be deleted.
* @param aCaretPoint The caret point (i.e., selection start or
* end).
* @param aWSRunScannerAtCaret WSRunScanner instance which was initialized
* with the caret point.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteCollapsedSelectionAtAtomicContent(
HTMLEditor& aHTMLEditor, nsIContent& aAtomicContent,
const EditorDOMPoint& aCaretPoint,
const WSRunScanner& aWSRunScannerAtCaret);
/**
* HandleDeleteCollapsedSelectionAtHRElement() handles deletion around
* `<hr>` element. If aDirectionAndAmount is nsIEditor::ePrevious,
* aHTElement is removed only when caret is at next sibling of the `<hr>`
* element and inter line position is "left". Otherwise, caret is moved
* and does not remove the `<hr>` elemnent.
* XXX Perhaps, we can get rid of this special handling because the other
* browsers don't do this, and our `<hr>` element handling is really
* odd.
*
* @param aDirectionAndAmount Direction of the deletion.
* @param aHRElement The `<hr>` element to be removed.
* @param aCaretPoint The caret point (i.e., selection start or
* end).
* @param aWSRunScannerAtCaret WSRunScanner instance which was initialized
* with the caret point.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteCollapsedSelectionAtHRElement(
HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
Element& aHRElement, const EditorDOMPoint& aCaretPoint,
const WSRunScanner& aWSRunScannerAtCaret);
/**
* HandleDeleteCollapsedSelectionAtOtherBlockBoundary() handles deletion at
* other block boundary (i.e., immediately before or after a block).
* If this does not join blocks, `HandleDeleteSelectionInternal()` may be
* called recursively.
*
* @param aDirectionAndAmount Direction of the deletion.
* @param aStripWrappers Must be eStrip or eNoStrip.
* @param aOtherBlockElement The block element which follows the caret or
* is followed by caret.
* @param aCaretPoint The caret point (i.e., selection start or
* end).
* @param aWSRunScannerAtCaret WSRunScanner instance which was initialized
* with the caret point.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteCollapsedSelectionAtOtherBlockBoundary(
HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
nsIEditor::EStripWrappers aStripWrappers, Element& aOtherBlockElement,
const EditorDOMPoint& aCaretPoint, WSRunScanner& aWSRunScannerAtCaret);
/**
* ExtendRangeToIncludeInvisibleNodes() extends aRange if there are some
* invisible nodes around it.
*
* @param aFrameSelection If the caller wants range in selection limiter,
* set this to non-nullptr which knows the limiter.
* @param aRange The range to be extended. This must not be
* collapsed, must be positioned, and must not be
* in selection.
* @return true if succeeded to set the range.
*/
bool ExtendRangeToIncludeInvisibleNodes(
const HTMLEditor& aHTMLEditor, const nsFrameSelection* aFrameSelection,
nsRange& aRange);
/**
* ShouldDeleteHRElement() checks whether aHRElement should be deleted
* when selection is collapsed at aCaretPoint.
*/
Result<bool, nsresult> ShouldDeleteHRElement(
const HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
Element& aHRElement, const EditorDOMPoint& aCaretPoint) const;
};
EditActionResult HTMLEditor::HandleDeleteSelection(
nsIEditor::EDirection aDirectionAndAmount,
nsIEditor::EStripWrappers aStripWrappers) {
@ -2451,6 +2627,8 @@ EditActionResult HTMLEditor::HandleDeleteSelectionInternal(
return EditActionCanceled();
}
AutoDeleteRangesHandler handler;
// selectionWasCollapsed is used later to determine whether we should join
// blocks in HandleDeleteNonCollapsedRanges(). We don't really care about
// collapsed because it will be modified by
@ -2621,30 +2799,32 @@ EditActionResult HTMLEditor::HandleDeleteSelectionInternal(
}
}
EditActionResult result = HandleDeleteAroundCollapsedRanges(
aDirectionAndAmount, aStripWrappers, aRangesToDelete,
EditActionResult result = handler.HandleDeleteAroundCollapsedRanges(
*this, aDirectionAndAmount, aStripWrappers, aRangesToDelete,
wsRunScannerAtCaret, scanFromCaretPointResult);
NS_WARNING_ASSERTION(
result.Succeeded(),
"HTMLEditor::HandleDeleteAroundCollapsedRanges() failed");
NS_WARNING_ASSERTION(result.Succeeded(),
"AutoDeleteRangesHandler::"
"HandleDeleteAroundCollapsedRanges() failed");
return result;
}
}
EditActionResult result =
HandleDeleteNonCollapsedRanges(aDirectionAndAmount, aStripWrappers,
aRangesToDelete, selectionWasCollapsed);
NS_WARNING_ASSERTION(result.Succeeded(),
"HTMLEditor::HandleDeleteNonCollapsedRanges() failed");
EditActionResult result = handler.HandleDeleteNonCollapsedRanges(
*this, aDirectionAndAmount, aStripWrappers, aRangesToDelete,
selectionWasCollapsed);
NS_WARNING_ASSERTION(
result.Succeeded(),
"AutoDeleteRangesHandler::HandleDeleteNonCollapsedRanges() failed");
return result;
}
EditActionResult HTMLEditor::HandleDeleteAroundCollapsedRanges(
nsIEditor::EDirection aDirectionAndAmount,
EditActionResult
HTMLEditor::AutoDeleteRangesHandler::HandleDeleteAroundCollapsedRanges(
HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
nsIEditor::EStripWrappers aStripWrappers, AutoRangeArray& aRangesToDelete,
const WSRunScanner& aWSRunScannerAtCaret,
const WSScanResult& aScanFromCaretPointResult) {
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
MOZ_ASSERT(aHTMLEditor.IsTopLevelEditSubActionDataAvailable());
MOZ_ASSERT(aRangesToDelete.IsCollapsed());
MOZ_ASSERT(aDirectionAndAmount != nsIEditor::eNone);
MOZ_ASSERT(aWSRunScannerAtCaret.ScanStartRef().IsInContentNode());
@ -2656,20 +2836,21 @@ EditActionResult HTMLEditor::HandleDeleteAroundCollapsedRanges(
if (aScanFromCaretPointResult.InNormalWhiteSpaces() ||
aScanFromCaretPointResult.InNormalText()) {
EditActionResult result = HandleDeleteTextAroundCollapsedSelection(
aDirectionAndAmount, aScanFromCaretPointResult.Point());
NS_WARNING_ASSERTION(
result.Succeeded(),
"HTMLEditor::HandleDeleteCollapsedSelectionInTextNode() failed");
aHTMLEditor, aDirectionAndAmount, aScanFromCaretPointResult.Point());
NS_WARNING_ASSERTION(result.Succeeded(),
"AutoDeleteRangesHandler::"
"HandleDeleteCollapsedSelectionInTextNode() failed");
return result;
}
}
if (aScanFromCaretPointResult.InNormalWhiteSpaces()) {
EditActionResult result = HandleDeleteCollapsedSelectionAtWhiteSpaces(
aDirectionAndAmount, aWSRunScannerAtCaret.ScanStartRef());
NS_WARNING_ASSERTION(
result.Succeeded(),
"HTMLEditor::HandleDelectCollapsedSelectionAtWhiteSpaces() failed");
aHTMLEditor, aDirectionAndAmount, aWSRunScannerAtCaret.ScanStartRef());
NS_WARNING_ASSERTION(result.Succeeded(),
"AutoDeleteRangesHandler::"
"HandleDelectCollapsedSelectionAtWhiteSpaces() "
"failed");
return result;
}
@ -2678,10 +2859,11 @@ EditActionResult HTMLEditor::HandleDeleteAroundCollapsedRanges(
return EditActionResult(NS_ERROR_FAILURE);
}
EditActionResult result = HandleDeleteCollapsedSelectionAtVisibleChar(
aDirectionAndAmount, aScanFromCaretPointResult.Point());
NS_WARNING_ASSERTION(
result.Succeeded(),
"HTMLEditor::HandleDeleteCollapsedSelectionAtVisibleChar() failed");
aHTMLEditor, aDirectionAndAmount, aScanFromCaretPointResult.Point());
NS_WARNING_ASSERTION(result.Succeeded(),
"AutoDeleteRangesHandler::"
"HandleDeleteCollapsedSelectionAtVisibleChar() "
"failed");
return result;
}
@ -2692,11 +2874,12 @@ EditActionResult HTMLEditor::HandleDeleteAroundCollapsedRanges(
return EditActionHandled();
}
EditActionResult result = HandleDeleteCollapsedSelectionAtAtomicContent(
MOZ_KnownLive(*aScanFromCaretPointResult.GetContent()),
aHTMLEditor, MOZ_KnownLive(*aScanFromCaretPointResult.GetContent()),
aWSRunScannerAtCaret.ScanStartRef(), aWSRunScannerAtCaret);
NS_WARNING_ASSERTION(
result.Succeeded(),
"HTMLEditor::HandleDeleteCollapsedSelectionAtAtomicContent() failed");
NS_WARNING_ASSERTION(result.Succeeded(),
"AutoDeleteRangesHandler::"
"HandleDeleteCollapsedSelectionAtAtomicContent() "
"failed");
return result;
}
@ -2706,12 +2889,12 @@ EditActionResult HTMLEditor::HandleDeleteAroundCollapsedRanges(
return EditActionHandled();
}
EditActionResult result = HandleDeleteCollapsedSelectionAtHRElement(
aDirectionAndAmount,
aHTMLEditor, aDirectionAndAmount,
MOZ_KnownLive(*aScanFromCaretPointResult.ElementPtr()),
aWSRunScannerAtCaret.ScanStartRef(), aWSRunScannerAtCaret);
NS_WARNING_ASSERTION(
result.Succeeded(),
"HTMLEditor::HandleDeleteCollapsedSelectionAtHRElement() failed");
NS_WARNING_ASSERTION(result.Succeeded(),
"AutoDeleteRangesHandler::"
"HandleDeleteCollapsedSelectionAtHRElement() failed");
return result;
}
@ -2721,16 +2904,16 @@ EditActionResult HTMLEditor::HandleDeleteAroundCollapsedRanges(
}
AutoBlockElementsJoiner joiner;
if (!joiner.PrepareToDeleteCollapsedSelectionAtOtherBlockBoundary(
*this, aDirectionAndAmount, *aScanFromCaretPointResult.ElementPtr(),
aHTMLEditor, aDirectionAndAmount,
*aScanFromCaretPointResult.ElementPtr(),
aWSRunScannerAtCaret.ScanStartRef(), aWSRunScannerAtCaret)) {
return EditActionCanceled();
}
EditActionResult result = joiner.Run(*this, aDirectionAndAmount,
EditActionResult result = joiner.Run(aHTMLEditor, aDirectionAndAmount,
aWSRunScannerAtCaret.ScanStartRef());
if (result.Failed()) {
NS_WARNING(
"HTMLEditor::AutoBlockElementsJoiner::Run() failed (other block "
"boundary)");
"AutoBlockElementsJoiner::Run() failed (other block boundary)");
return result;
}
if (result.Handled() || result.Canceled()) {
@ -2750,20 +2933,20 @@ EditActionResult HTMLEditor::HandleDeleteAroundCollapsedRanges(
? EditorRawDOMPoint::AtEndOf(
*joiner.GetLeafContentInOtherBlockElement())
: EditorRawDOMPoint(joiner.GetLeafContentInOtherBlockElement(), 0);
nsresult rv = CollapseSelectionTo(newCaretPoint);
nsresult rv = aHTMLEditor.CollapseSelectionTo(newCaretPoint);
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
return result.SetResult(NS_ERROR_EDITOR_DESTROYED);
}
if (!SelectionRefPtr()->RangeCount()) {
if (!aHTMLEditor.SelectionRefPtr()->RangeCount()) {
NS_WARNING("Failed to put caret to new position");
return EditActionHandled(rv);
}
NS_WARNING_ASSERTION(
NS_SUCCEEDED(rv),
"HTMLEditor::CollapseSelectionTo() failed, but ignored");
AutoRangeArray rangesToDelete(*SelectionRefPtr());
result = HandleDeleteSelectionInternal(aDirectionAndAmount, aStripWrappers,
rangesToDelete);
AutoRangeArray rangesToDelete(*aHTMLEditor.SelectionRefPtr());
result = aHTMLEditor.HandleDeleteSelectionInternal(
aDirectionAndAmount, aStripWrappers, rangesToDelete);
NS_WARNING_ASSERTION(
result.Succeeded(),
"Recursive HTMLEditor::HandleDeleteSelectionInternal() failed");
@ -2776,15 +2959,16 @@ EditActionResult HTMLEditor::HandleDeleteAroundCollapsedRanges(
}
AutoBlockElementsJoiner joiner;
if (!joiner.PrepareToDeleteCollapsedSelectionAtCurrentBlockBoundary(
*this, aDirectionAndAmount, *aScanFromCaretPointResult.ElementPtr(),
aHTMLEditor, aDirectionAndAmount,
*aScanFromCaretPointResult.ElementPtr(),
aWSRunScannerAtCaret.ScanStartRef())) {
return EditActionCanceled();
}
EditActionResult result = joiner.Run(*this, aDirectionAndAmount,
EditActionResult result = joiner.Run(aHTMLEditor, aDirectionAndAmount,
aWSRunScannerAtCaret.ScanStartRef());
NS_WARNING_ASSERTION(result.Succeeded(),
"HTMLEditor::AutoBlockElementsJoiner::Run() failed "
"(current block boundary)");
NS_WARNING_ASSERTION(
result.Succeeded(),
"AutoBlockElementsJoiner::Run() failed (current block boundary)");
return result;
}
@ -2792,17 +2976,18 @@ EditActionResult HTMLEditor::HandleDeleteAroundCollapsedRanges(
return EditActionIgnored();
}
EditActionResult HTMLEditor::HandleDeleteTextAroundCollapsedSelection(
nsIEditor::EDirection aDirectionAndAmount,
EditActionResult
HTMLEditor::AutoDeleteRangesHandler::HandleDeleteTextAroundCollapsedSelection(
HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
const EditorDOMPoint& aCaretPosition) {
MOZ_ASSERT(IsEditActionDataAvailable());
MOZ_ASSERT(aHTMLEditor.IsEditActionDataAvailable());
MOZ_ASSERT(aDirectionAndAmount == nsIEditor::eNext ||
aDirectionAndAmount == nsIEditor::ePrevious);
EditorDOMRangeInTexts rangeToDelete;
if (aDirectionAndAmount == nsIEditor::eNext) {
Result<EditorDOMRangeInTexts, nsresult> result =
WSRunScanner::GetRangeInTextNodesToForwardDeleteFrom(*this,
WSRunScanner::GetRangeInTextNodesToForwardDeleteFrom(aHTMLEditor,
aCaretPosition);
if (result.isErr()) {
NS_WARNING(
@ -2815,7 +3000,8 @@ EditActionResult HTMLEditor::HandleDeleteTextAroundCollapsedSelection(
}
} else {
Result<EditorDOMRangeInTexts, nsresult> result =
WSRunScanner::GetRangeInTextNodesToBackspaceFrom(*this, aCaretPosition);
WSRunScanner::GetRangeInTextNodesToBackspaceFrom(aHTMLEditor,
aCaretPosition);
if (result.isErr()) {
NS_WARNING("WSRunScanner::GetRangeInTextNodesToBackspaceFrom() failed");
return EditActionHandled(result.unwrapErr());
@ -2832,14 +3018,14 @@ EditActionResult HTMLEditor::HandleDeleteTextAroundCollapsedSelection(
// with
// HTMLEditUtils::GetMostDistantAnscestorEditableEmptyInlineElement().
AutoTransactionsConserveSelection dontChangeMySelection(*this);
AutoTransactionsConserveSelection dontChangeMySelection(aHTMLEditor);
Result<EditorDOMPoint, nsresult> result =
DeleteTextAndNormalizeSurroundingWhiteSpaces(
aHTMLEditor.DeleteTextAndNormalizeSurroundingWhiteSpaces(
rangeToDelete.StartRef(), rangeToDelete.EndRef(),
TreatEmptyTextNodes::RemoveAllEmptyInlineAncestors,
aDirectionAndAmount == nsIEditor::eNext ? DeleteDirection::Forward
: DeleteDirection::Backward);
TopLevelEditSubActionDataRef().mDidNormalizeWhitespaces = true;
aHTMLEditor.TopLevelEditSubActionDataRef().mDidNormalizeWhitespaces = true;
if (result.isErr()) {
NS_WARNING(
"HTMLEditor::DeleteTextAndNormalizeSurroundingWhiteSpaces() failed");
@ -2848,22 +3034,23 @@ EditActionResult HTMLEditor::HandleDeleteTextAroundCollapsedSelection(
const EditorDOMPoint& newCaretPosition = result.inspect();
MOZ_ASSERT(newCaretPosition.IsSetAndValid());
DebugOnly<nsresult> rvIgnored =
SelectionRefPtr()->Collapse(newCaretPosition.ToRawRangeBoundary());
DebugOnly<nsresult> rvIgnored = aHTMLEditor.SelectionRefPtr()->Collapse(
newCaretPosition.ToRawRangeBoundary());
NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
"Selection::Collapse() failed, but ignored");
return EditActionHandled();
}
EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtWhiteSpaces(
nsIEditor::EDirection aDirectionAndAmount,
const EditorDOMPoint& aPointToDelete) {
MOZ_ASSERT(IsEditActionDataAvailable());
EditActionResult HTMLEditor::AutoDeleteRangesHandler::
HandleDeleteCollapsedSelectionAtWhiteSpaces(
HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
const EditorDOMPoint& aPointToDelete) {
MOZ_ASSERT(aHTMLEditor.IsEditActionDataAvailable());
MOZ_ASSERT(!StaticPrefs::editor_white_space_normalization_blink_compatible());
if (aDirectionAndAmount == nsIEditor::eNext) {
nsresult rv = WhiteSpaceVisibilityKeeper::DeleteInclusiveNextWhiteSpace(
*this, aPointToDelete);
aHTMLEditor, aPointToDelete);
if (NS_FAILED(rv)) {
NS_WARNING(
"WhiteSpaceVisibilityKeeper::DeleteInclusiveNextWhiteSpace() failed");
@ -2871,15 +3058,16 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtWhiteSpaces(
}
} else {
nsresult rv = WhiteSpaceVisibilityKeeper::DeletePreviousWhiteSpace(
*this, aPointToDelete);
aHTMLEditor, aPointToDelete);
if (NS_FAILED(rv)) {
NS_WARNING(
"WhiteSpaceVisibilityKeeper::DeletePreviousWhiteSpace() failed");
return EditActionHandled(rv);
}
}
nsresult rv = InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
EditorBase::GetStartPoint(*SelectionRefPtr()));
nsresult rv =
aHTMLEditor.InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
EditorBase::GetStartPoint(*aHTMLEditor.SelectionRefPtr()));
NS_WARNING_ASSERTION(
NS_SUCCEEDED(rv),
"HTMLEditor::InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary() "
@ -2887,10 +3075,11 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtWhiteSpaces(
return EditActionHandled(rv);
}
EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtVisibleChar(
nsIEditor::EDirection aDirectionAndAmount,
const EditorDOMPoint& aPointToDelete) {
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
EditActionResult HTMLEditor::AutoDeleteRangesHandler::
HandleDeleteCollapsedSelectionAtVisibleChar(
HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
const EditorDOMPoint& aPointToDelete) {
MOZ_ASSERT(aHTMLEditor.IsTopLevelEditSubActionDataAvailable());
MOZ_ASSERT(!StaticPrefs::editor_white_space_normalization_blink_compatible());
MOZ_ASSERT(aPointToDelete.IsSet());
MOZ_ASSERT(aPointToDelete.IsInTextNode());
@ -2912,7 +3101,7 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtVisibleChar(
}
}
} else {
RefPtr<const nsRange> range = SelectionRefPtr()->GetRangeAt(0);
RefPtr<const nsRange> range = aHTMLEditor.SelectionRefPtr()->GetRangeAt(0);
if (NS_WARN_IF(!range) ||
NS_WARN_IF(range->GetStartContainer() !=
aPointToDelete.GetContainer()) ||
@ -2923,8 +3112,8 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtVisibleChar(
endToDelete = range->EndRef();
}
nsresult rv = WhiteSpaceVisibilityKeeper::PrepareToDeleteRangeAndTrackPoints(
*this, &startToDelete, &endToDelete);
if (NS_WARN_IF(Destroyed())) {
aHTMLEditor, &startToDelete, &endToDelete);
if (NS_WARN_IF(aHTMLEditor.Destroyed())) {
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
}
if (NS_FAILED(rv)) {
@ -2933,7 +3122,7 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtVisibleChar(
"failed");
return EditActionResult(rv);
}
if (MaybeHasMutationEventListeners(
if (aHTMLEditor.MaybeHasMutationEventListeners(
NS_EVENT_BITS_MUTATION_NODEREMOVED |
NS_EVENT_BITS_MUTATION_NODEREMOVEDFROMDOCUMENT |
NS_EVENT_BITS_MUTATION_ATTRMODIFIED |
@ -2948,9 +3137,10 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtVisibleChar(
NS_WARNING("Mutation event listener changed the DOM tree");
return EditActionHandled(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
}
rv = DeleteTextWithTransaction(visibleTextNode, startToDelete.Offset(),
endToDelete.Offset() - startToDelete.Offset());
if (NS_WARN_IF(Destroyed())) {
rv = aHTMLEditor.DeleteTextWithTransaction(
visibleTextNode, startToDelete.Offset(),
endToDelete.Offset() - startToDelete.Offset());
if (NS_WARN_IF(aHTMLEditor.Destroyed())) {
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
}
if (NS_FAILED(rv)) {
@ -2971,7 +3161,7 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtVisibleChar(
// non-empty text node. For now, we should keep our traditional
// behavior same as Chromium for backward compatibility.
rv = DeleteNodeIfInvisibleAndEditableTextNode(visibleTextNode);
rv = aHTMLEditor.DeleteNodeIfInvisibleAndEditableTextNode(visibleTextNode);
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
}
@ -2983,8 +3173,8 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtVisibleChar(
// that we should use EditorDOMPoint::AtEndOf(visibleTextNode)
// instead. (Perhaps, we don't and/or shouldn't need to do this
// if the text node is preformatted.)
rv = InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
EditorBase::GetStartPoint(*SelectionRefPtr()));
rv = aHTMLEditor.InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
EditorBase::GetStartPoint(*aHTMLEditor.SelectionRefPtr()));
if (NS_FAILED(rv)) {
NS_WARNING(
"HTMLEditor::InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary()"
@ -2994,15 +3184,16 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtVisibleChar(
// Remember that we did a ranged delete for the benefit of
// AfterEditInner().
TopLevelEditSubActionDataRef().mDidDeleteNonCollapsedRange = true;
aHTMLEditor.TopLevelEditSubActionDataRef().mDidDeleteNonCollapsedRange = true;
return EditActionHandled();
}
Result<bool, nsresult> HTMLEditor::ShouldDeleteHRElement(
nsIEditor::EDirection aDirectionAndAmount, Element& aHRElement,
const EditorDOMPoint& aCaretPoint) const {
MOZ_ASSERT(IsEditActionDataAvailable());
Result<bool, nsresult>
HTMLEditor::AutoDeleteRangesHandler::ShouldDeleteHRElement(
const HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
Element& aHRElement, const EditorDOMPoint& aCaretPoint) const {
MOZ_ASSERT(aHTMLEditor.IsEditActionDataAvailable());
if (aDirectionAndAmount != nsIEditor::ePrevious) {
return true;
@ -3028,7 +3219,8 @@ Result<bool, nsresult> HTMLEditor::ShouldDeleteHRElement(
EditorRawDOMPoint atHRElement(&aHRElement);
ErrorResult error;
bool interLineIsRight = SelectionRefPtr()->GetInterlinePosition(error);
bool interLineIsRight =
aHTMLEditor.SelectionRefPtr()->GetInterlinePosition(error);
if (error.Failed()) {
NS_WARNING("Selection::GetInterlinePosition() failed");
nsresult rv = error.StealNSResult();
@ -3040,26 +3232,28 @@ Result<bool, nsresult> HTMLEditor::ShouldDeleteHRElement(
aCaretPoint.Offset() - 1 == atHRElement.Offset();
}
EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtHRElement(
nsIEditor::EDirection aDirectionAndAmount, Element& aHRElement,
const EditorDOMPoint& aCaretPoint,
EditActionResult
HTMLEditor::AutoDeleteRangesHandler::HandleDeleteCollapsedSelectionAtHRElement(
HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
Element& aHRElement, const EditorDOMPoint& aCaretPoint,
const WSRunScanner& aWSRunScannerAtCaret) {
MOZ_ASSERT(IsEditActionDataAvailable());
MOZ_ASSERT(aHTMLEditor.IsEditActionDataAvailable());
MOZ_ASSERT(aHRElement.IsHTMLElement(nsGkAtoms::hr));
MOZ_ASSERT(&aHRElement != aWSRunScannerAtCaret.GetEditingHost());
Result<bool, nsresult> canDeleteHRElement =
ShouldDeleteHRElement(aDirectionAndAmount, aHRElement, aCaretPoint);
Result<bool, nsresult> canDeleteHRElement = ShouldDeleteHRElement(
aHTMLEditor, aDirectionAndAmount, aHRElement, aCaretPoint);
if (canDeleteHRElement.isErr()) {
NS_WARNING("HTMLEditor::ShouldDeleteHRElement() failed");
NS_WARNING("AutoDeleteRangesHandler::ShouldDeleteHRElement() failed");
return EditActionHandled(canDeleteHRElement.unwrapErr());
}
if (canDeleteHRElement.inspect()) {
EditActionResult result = HandleDeleteCollapsedSelectionAtAtomicContent(
aHRElement, aCaretPoint, aWSRunScannerAtCaret);
aHTMLEditor, aHRElement, aCaretPoint, aWSRunScannerAtCaret);
NS_WARNING_ASSERTION(
result.Succeeded(),
"HTMLEditor::HandleDeleteCollapsedSelectionAtAtomicContent() failed");
"AutoDeleteRangesHandler::"
"HandleDeleteCollapsedSelectionAtAtomicContent() failed");
return result;
}
@ -3072,7 +3266,7 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtHRElement(
{
AutoEditorDOMPointChildInvalidator lockOffset(atNextOfHRElement);
nsresult rv = CollapseSelectionTo(atNextOfHRElement);
nsresult rv = aHTMLEditor.CollapseSelectionTo(atNextOfHRElement);
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
}
@ -3082,11 +3276,11 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtHRElement(
}
IgnoredErrorResult ignoredError;
SelectionRefPtr()->SetInterlinePosition(false, ignoredError);
aHTMLEditor.SelectionRefPtr()->SetInterlinePosition(false, ignoredError);
NS_WARNING_ASSERTION(
!ignoredError.Failed(),
"Selection::SetInterlinePosition(false) failed, but ignored");
TopLevelEditSubActionDataRef().mDidExplicitlySetInterLine = true;
aHTMLEditor.TopLevelEditSubActionDataRef().mDidExplicitlySetInterLine = true;
// There is one exception to the move only case. If the <hr> is
// followed by a <br> we want to delete the <br>.
@ -3100,7 +3294,8 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtHRElement(
// Delete the <br>
nsresult rv =
WhiteSpaceVisibilityKeeper::DeleteContentNodeAndJoinTextNodesAroundIt(
*this, MOZ_KnownLive(*forwardScanFromCaretResult.BRElementPtr()),
aHTMLEditor,
MOZ_KnownLive(*forwardScanFromCaretResult.BRElementPtr()),
aCaretPoint);
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
"WhiteSpaceVisibilityKeeper::"
@ -3108,17 +3303,19 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtHRElement(
return EditActionHandled(rv);
}
EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtAtomicContent(
nsIContent& aAtomicContent, const EditorDOMPoint& aCaretPoint,
const WSRunScanner& aWSRunScannerAtCaret) {
MOZ_ASSERT(IsEditActionDataAvailable());
EditActionResult HTMLEditor::AutoDeleteRangesHandler::
HandleDeleteCollapsedSelectionAtAtomicContent(
HTMLEditor& aHTMLEditor, nsIContent& aAtomicContent,
const EditorDOMPoint& aCaretPoint,
const WSRunScanner& aWSRunScannerAtCaret) {
MOZ_ASSERT(aHTMLEditor.IsEditActionDataAvailable());
MOZ_ASSERT_IF(aAtomicContent.IsHTMLElement(nsGkAtoms::br),
IsVisibleBRElement(&aAtomicContent));
aHTMLEditor.IsVisibleBRElement(&aAtomicContent));
MOZ_ASSERT(&aAtomicContent != aWSRunScannerAtCaret.GetEditingHost());
nsresult rv =
WhiteSpaceVisibilityKeeper::DeleteContentNodeAndJoinTextNodesAroundIt(
*this, aAtomicContent, aCaretPoint);
aHTMLEditor, aAtomicContent, aCaretPoint);
if (NS_WARN_IF(NS_FAILED(rv))) {
NS_WARNING(
"WhiteSpaceVisibilityKeeper::DeleteContentNodeAndJoinTextNodesAroundIt("
@ -3126,8 +3323,8 @@ EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtAtomicContent(
return EditActionHandled(rv);
}
rv = InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
EditorBase::GetStartPoint(*SelectionRefPtr()));
rv = aHTMLEditor.InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
EditorBase::GetStartPoint(*aHTMLEditor.SelectionRefPtr()));
NS_WARNING_ASSERTION(
NS_SUCCEEDED(rv),
"HTMLEditor::InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary() "
@ -3361,11 +3558,12 @@ EditActionResult HTMLEditor::AutoBlockElementsJoiner::
return result;
}
EditActionResult HTMLEditor::HandleDeleteNonCollapsedRanges(
nsIEditor::EDirection aDirectionAndAmount,
EditActionResult
HTMLEditor::AutoDeleteRangesHandler::HandleDeleteNonCollapsedRanges(
HTMLEditor& aHTMLEditor, nsIEditor::EDirection aDirectionAndAmount,
nsIEditor::EStripWrappers aStripWrappers, AutoRangeArray& aRangesToDelete,
SelectionWasCollapsed aSelectionWasCollapsed) {
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
MOZ_ASSERT(aHTMLEditor.IsTopLevelEditSubActionDataAvailable());
MOZ_ASSERT(!aRangesToDelete.IsCollapsed());
if (NS_WARN_IF(!aRangesToDelete.FirstRangeRef()->StartRef().IsSet()) ||
@ -3376,28 +3574,31 @@ EditActionResult HTMLEditor::HandleDeleteNonCollapsedRanges(
// Else we have a non-collapsed selection. First adjust the selection.
// XXX Why do we extend selection only when there is only one range?
if (aRangesToDelete.Ranges().Length() == 1) {
nsFrameSelection* frameSelection = SelectionRefPtr()->GetFrameSelection();
nsFrameSelection* frameSelection =
aHTMLEditor.SelectionRefPtr()->GetFrameSelection();
if (NS_WARN_IF(!frameSelection)) {
return EditActionResult(NS_ERROR_FAILURE);
}
if (!ExtendRangeToIncludeInvisibleNodes(frameSelection,
if (!ExtendRangeToIncludeInvisibleNodes(aHTMLEditor, frameSelection,
aRangesToDelete.FirstRangeRef())) {
NS_WARNING("HTMLEditor::ExtendRangeToIncludeInvisibleNodes() failed");
NS_WARNING(
"AutoDeleteRangesHandler::ExtendRangeToIncludeInvisibleNodes() "
"failed");
return EditActionResult(NS_ERROR_FAILURE);
}
}
// Remember that we did a ranged delete for the benefit of AfterEditInner().
TopLevelEditSubActionDataRef().mDidDeleteNonCollapsedRange = true;
aHTMLEditor.TopLevelEditSubActionDataRef().mDidDeleteNonCollapsedRange = true;
// Figure out if the endpoints are in nodes that can be merged. Adjust
// surrounding white-space in preparation to delete selection.
if (!IsPlaintextEditor()) {
AutoTransactionsConserveSelection dontChangeMySelection(*this);
AutoTrackDOMRange firstRangeTracker(RangeUpdaterRef(),
if (!aHTMLEditor.IsPlaintextEditor()) {
AutoTransactionsConserveSelection dontChangeMySelection(aHTMLEditor);
AutoTrackDOMRange firstRangeTracker(aHTMLEditor.RangeUpdaterRef(),
&aRangesToDelete.FirstRangeRef());
nsresult rv = WhiteSpaceVisibilityKeeper::PrepareToDeleteRange(
*this, EditorDOMRange(aRangesToDelete.FirstRangeRef()));
aHTMLEditor, EditorDOMRange(aRangesToDelete.FirstRangeRef()));
if (NS_FAILED(rv)) {
NS_WARNING(
"WhiteSpaceVisibilityKeeper::PrepareToDeleteRange() "
@ -3423,9 +3624,9 @@ EditActionResult HTMLEditor::HandleDeleteNonCollapsedRanges(
// If we've already removed all contents in the range, we shouldn't
// delete anything around the caret.
if (!aRangesToDelete.FirstRangeRef()->Collapsed()) {
AutoTrackDOMRange firstRangeTracker(RangeUpdaterRef(),
AutoTrackDOMRange firstRangeTracker(aHTMLEditor.RangeUpdaterRef(),
&aRangesToDelete.FirstRangeRef());
nsresult rv = DeleteRangesWithTransaction(
nsresult rv = aHTMLEditor.DeleteRangesWithTransaction(
aDirectionAndAmount, aStripWrappers, aRangesToDelete);
if (NS_FAILED(rv)) {
NS_WARNING("EditorBase::DeleteRangesWithTransaction() failed");
@ -3434,7 +3635,7 @@ EditActionResult HTMLEditor::HandleDeleteNonCollapsedRanges(
}
// However, even if the range is removed, we may need to clean up the
// containers which become empty.
nsresult rv = DeleteUnnecessaryNodesAndCollapseSelection(
nsresult rv = aHTMLEditor.DeleteUnnecessaryNodesAndCollapseSelection(
aDirectionAndAmount,
EditorDOMPoint(aRangesToDelete.FirstRangeRef()->StartRef()),
EditorDOMPoint(aRangesToDelete.FirstRangeRef()->EndRef()));
@ -3452,9 +3653,9 @@ EditActionResult HTMLEditor::HandleDeleteNonCollapsedRanges(
}
// Figure out mailcite ancestors
RefPtr<Element> startCiteNode = GetMostAncestorMailCiteElement(
RefPtr<Element> startCiteNode = aHTMLEditor.GetMostAncestorMailCiteElement(
*aRangesToDelete.FirstRangeRef()->GetStartContainer());
RefPtr<Element> endCiteNode = GetMostAncestorMailCiteElement(
RefPtr<Element> endCiteNode = aHTMLEditor.GetMostAncestorMailCiteElement(
*aRangesToDelete.FirstRangeRef()->GetEndContainer());
// If we only have a mailcite at one of the two endpoints, set the
@ -3467,12 +3668,12 @@ EditActionResult HTMLEditor::HandleDeleteNonCollapsedRanges(
}
AutoBlockElementsJoiner joiner;
if (!joiner.PrepareToDeleteNonCollapsedRanges(*this, aRangesToDelete)) {
if (!joiner.PrepareToDeleteNonCollapsedRanges(aHTMLEditor, aRangesToDelete)) {
return EditActionHandled(NS_ERROR_FAILURE);
}
EditActionResult result =
joiner.Run(*this, aDirectionAndAmount, aStripWrappers, aRangesToDelete,
aSelectionWasCollapsed);
joiner.Run(aHTMLEditor, aDirectionAndAmount, aStripWrappers,
aRangesToDelete, aSelectionWasCollapsed);
NS_WARNING_ASSERTION(result.Succeeded(),
"AutoBlockElementsJoiner::Run() failed");
return result;
@ -8291,9 +8492,10 @@ size_t HTMLEditor::CollectChildren(
return numberOfFoundChildren;
}
bool HTMLEditor::ExtendRangeToIncludeInvisibleNodes(
const nsFrameSelection* aFrameSelection, nsRange& aRange) {
MOZ_ASSERT(IsEditActionDataAvailable());
bool HTMLEditor::AutoDeleteRangesHandler::ExtendRangeToIncludeInvisibleNodes(
const HTMLEditor& aHTMLEditor, const nsFrameSelection* aFrameSelection,
nsRange& aRange) {
MOZ_ASSERT(aHTMLEditor.IsEditActionDataAvailable());
MOZ_ASSERT(!aRange.Collapsed());
MOZ_ASSERT(aRange.IsPositioned());
MOZ_ASSERT(!aRange.IsInSelection());
@ -8314,7 +8516,7 @@ bool HTMLEditor::ExtendRangeToIncludeInvisibleNodes(
}
// Set up for loops and cache our root element
Element* editingHost = GetActiveEditingHost();
Element* editingHost = aHTMLEditor.GetActiveEditingHost();
if (NS_WARN_IF(!editingHost)) {
return false;
}
@ -8324,12 +8526,13 @@ bool HTMLEditor::ExtendRangeToIncludeInvisibleNodes(
atStart.GetContainer() != editingHost) {
for (;;) {
WSScanResult backwardScanFromStartResult =
WSRunScanner::ScanPreviousVisibleNodeOrBlockBoundary(*this, atStart);
WSRunScanner::ScanPreviousVisibleNodeOrBlockBoundary(aHTMLEditor,
atStart);
if (!backwardScanFromStartResult.ReachedCurrentBlockBoundary()) {
break;
}
MOZ_ASSERT(backwardScanFromStartResult.GetContent() ==
WSRunScanner(*this, atStart).GetStartReasonContent());
WSRunScanner(aHTMLEditor, atStart).GetStartReasonContent());
// We want to keep looking up. But stop if we are crossing table
// element boundaries, or if we hit the root.
if (HTMLEditUtils::IsAnyTableElement(
@ -8356,7 +8559,7 @@ bool HTMLEditor::ExtendRangeToIncludeInvisibleNodes(
atEnd.GetContainer() != editingHost) {
EditorDOMPoint atFirstInvisibleBRElement;
for (;;) {
WSRunScanner wsScannerAtEnd(*this, atEnd);
WSRunScanner wsScannerAtEnd(aHTMLEditor, atEnd);
WSScanResult forwardScanFromEndResult =
wsScannerAtEnd.ScanNextVisibleNodeOrBlockBoundaryFrom(atEnd);
if (forwardScanFromEndResult.ReachedBRElement()) {
@ -8368,7 +8571,8 @@ bool HTMLEditor::ExtendRangeToIncludeInvisibleNodes(
NS_ASSERTION(wsScannerAtEnd.GetEndReasonContent() ==
forwardScanFromEndResult.BRElementPtr(),
"End reason is not the reached <br> element");
if (IsVisibleBRElement(wsScannerAtEnd.GetEndReasonContent())) {
if (aHTMLEditor.IsVisibleBRElement(
wsScannerAtEnd.GetEndReasonContent())) {
break;
}
if (!atFirstInvisibleBRElement.IsSet()) {

Просмотреть файл

@ -2385,20 +2385,6 @@ class HTMLEditor final : public TextEditor,
[[nodiscard]] MOZ_CAN_RUN_SCRIPT nsresult
RemoveEmptyInclusiveAncestorInlineElements(nsIContent& aContent);
/**
* ExtendRangeToIncludeInvisibleNodes() extends aRange if there are some
* invisible nodes around it.
*
* @param aFrameSelection If the caller wants range in selection limiter,
* set this to non-nullptr which knows the limiter.
* @param aRange The range to be extended. This must not be
* collapsed, must be positioned, and must not be
* in selection.
* @return true if succeeded to set the range.
*/
bool ExtendRangeToIncludeInvisibleNodes(
const nsFrameSelection* aFrameSelection, nsRange& aRange);
/**
* DeleteTextAndNormalizeSurroundingWhiteSpaces() deletes text between
* aStartToDelete and immediately before aEndToDelete and return new caret
@ -2572,83 +2558,6 @@ class HTMLEditor final : public TextEditor,
const CharPointData& aPreviousCharPointData,
const CharPointData& aNextCharPointData);
/**
* HandleDeleteCollapsedSelectionAtWhiteSpaces() handles deletion of
* collapsed selection at white-spaces in a text node.
*
* @param aDirectionAndAmount Direction of the deletion.
* @param aPointToDelete The point to delete. I.e., typically, caret
* position.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteCollapsedSelectionAtWhiteSpaces(
nsIEditor::EDirection aDirectionAndAmount,
const EditorDOMPoint& aPointToDelete);
/**
* HandleDeleteCollapsedSelectionAtVisibleChar() handles deletion of
* collapsed selection in a text node.
*
* @param aDirectionAndAmount Direction of the deletion.
* @param aPointToDelete The point in a text node to delete character(s).
* Caller must guarantee that this is in a text
* node.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteCollapsedSelectionAtVisibleChar(
nsIEditor::EDirection aDirectionAndAmount,
const EditorDOMPoint& aPointToDelete);
/**
* HandleDeleteCollapsedSelectionAtAtomicContent() handles deletion of
* atomic elements like `<br>`, `<hr>`, `<img>`, `<input>`, etc and
* data nodes except text node (e.g., comment node).
* Note that don't call this directly with `<hr>` element. Instead, call
* `HandleDeleteCollapsedSelectionAtHRElement()`.
* Note that don't call this for invisible `<br>` element.
*
* @param aAtomicContent The atomic content to be deleted.
* @param aCaretPoint The caret point (i.e., selection start or
* end).
* @param aWSRunScannerAtCaret WSRunScanner instance which was initialized
* with the caret point.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteCollapsedSelectionAtAtomicContent(
nsIContent& aAtomicContent, const EditorDOMPoint& aCaretPoint,
const WSRunScanner& aWSRunScannerAtCaret);
/**
* HandleDeleteCollapsedSelectionAtHRElement() handles deletion around
* `<hr>` element. If aDirectionAndAmount is nsIEditor::ePrevious,
* aHTElement is removed only when caret is at next sibling of the `<hr>`
* element and inter line position is "left". Otherwise, caret is moved
* and does not remove the `<hr>` elemnent.
* XXX Perhaps, we can get rid of this special handling because the other
* browsers don't do this, and our `<hr>` element handling is really
* odd.
*
* @param aDirectionAndAmount Direction of the deletion.
* @param aHRElement The `<hr>` element to be removed.
* @param aCaretPoint The caret point (i.e., selection start or
* end).
* @param aWSRunScannerAtCaret WSRunScanner instance which was initialized
* with the caret point.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteCollapsedSelectionAtHRElement(
nsIEditor::EDirection aDirectionAndAmount, Element& aHRElement,
const EditorDOMPoint& aCaretPoint,
const WSRunScanner& aWSRunScannerAtCaret);
/**
* ShouldDeleteHRElement() checks whether aHRElement should be deleted
* when selection is collapsed at aCaretPoint.
*/
Result<bool, nsresult> ShouldDeleteHRElement(
nsIEditor::EDirection aDirectionAndAmount, Element& aHRElement,
const EditorDOMPoint& aCaretPoint) const;
class MOZ_STACK_CLASS AutoEmptyBlockAncestorDeleter final {
public:
/**
@ -3026,27 +2935,6 @@ class HTMLEditor final : public TextEditor,
bool mNeedsToFallbackToDeleteSelectionWithTransaction = false;
};
/**
* HandleDeleteCollapsedSelectionAtOtherBlockBoundary() handles deletion at
* other block boundary (i.e., immediately before or after a block).
* If this does not join blocks, `HandleDeleteSelectionInternal()` may be
* called recursively.
*
* @param aDirectionAndAmount Direction of the deletion.
* @param aStripWrappers Must be eStrip or eNoStrip.
* @param aOtherBlockElement The block element which follows the caret or
* is followed by caret.
* @param aCaretPoint The caret point (i.e., selection start or
* end).
* @param aWSRunScannerAtCaret WSRunScanner instance which was initialized
* with the caret point.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteCollapsedSelectionAtOtherBlockBoundary(
nsIEditor::EDirection aDirectionAndAmount,
nsIEditor::EStripWrappers aStripWrappers, Element& aOtherBlockElement,
const EditorDOMPoint& aCaretPoint, WSRunScanner& aWSRunScannerAtCaret);
/**
* DeleteUnnecessaryNodesAndCollapseSelection() removes unnecessary nodes
* around aSelectionStartPoint and aSelectionEndPoint. Then, collapse
@ -3069,60 +2957,6 @@ class HTMLEditor final : public TextEditor,
const EditorDOMPoint& aSelectionStartPoint,
const EditorDOMPoint& aSelectionEndPoint);
/**
* HandleDeleteAroundCollapsedRanges() handles deletion with collapsed
* ranges. Callers must guarantee that this is called only when
* aRangesToDelete.IsCollapsed() returns true.
*
* @param aDirectionAndAmount Direction of the deletion.
* @param aStripWrappers Must be eStrip or eNoStrip.
* @param aRangesToDelete Ranges to delete. This `IsCollapsed()` must
* return true.
* @param aWSRunScannerAtCaret Scanner instance which scanned from
* caret point.
* @param aScanFromCaretPointResult Scan result of aWSRunScannerAtCaret
* toward aDirectionAndAmount.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteAroundCollapsedRanges(
nsIEditor::EDirection aDirectionAndAmount,
nsIEditor::EStripWrappers aStripWrappers, AutoRangeArray& aRangesToDelete,
const WSRunScanner& aWSRunScannerAtCaret,
const WSScanResult& aScanFromCaretPointResult);
/**
* HandleDeleteTextAroundCollapsedSelection() handles deletion of
* collapsed selection in a text node.
*
* @param aDirectionAndAmount Must be eNext or ePrevious.
* @param aCaretPoisition The position where caret is. This container
* must be a text node.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteTextAroundCollapsedSelection(
nsIEditor::EDirection aDirectionAndAmount,
const EditorDOMPoint& aCaretPosition);
/**
* HandleDeleteNonCollapsedRanges() handles deletion with non-collapsed
* ranges. Callers must guarantee that this is called only when
* aRangesToDelete.IsCollapsed() returns false.
*
* @param aDirectionAndAmount Direction of the deletion.
* @param aStripWrappers Must be eStrip or eNoStrip.
* @param aRangesToDelete The ranges to delete.
* @param aSelectionWasCollapsed If the caller extended `Selection`
* from collapsed, set this to `Yes`.
* Otherwise, i.e., `Selection` is not
* collapsed from the beginning, set
* this to `No`.
*/
[[nodiscard]] MOZ_CAN_RUN_SCRIPT EditActionResult
HandleDeleteNonCollapsedRanges(nsIEditor::EDirection aDirectionAndAmount,
nsIEditor::EStripWrappers aStripWrappers,
AutoRangeArray& aRangesToDelete,
SelectionWasCollapsed aSelectionWasCollapsed);
/**
* HandleDeleteSelectionInternal() is a helper method of
* HandleDeleteSelection(). This can be called recursively by the helper
@ -3149,6 +2983,8 @@ class HTMLEditor final : public TextEditor,
HandleDeleteSelection(nsIEditor::EDirection aDirectionAndAmount,
nsIEditor::EStripWrappers aStripWrappers) final;
class AutoDeleteRangesHandler;
/**
* DeleteMostAncestorMailCiteElementIfEmpty() deletes most ancestor
* mail cite element (`<blockquote type="cite">` or