mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-25 05:41:12 +00:00
18e444a223
When typing at edge of a link, editor splits the link element at the edge (i.e.,
creating an empty link element). Then, unlink the new link element (i.e.,
clearing the "link style"). At this time, `class` attribute and `style`
attribute are cloned to new `<span>` element for keeping the original style.
However, in this case, other browsers discard the specified style of the link.
On the other hand, when unlinking a link with `execCommand("unlink")`, the
other browsers keep specified style coming from `style` attribute.
Therefore, this patch adds new state to `PropItem`, which indicates whether
the `class` and `style` attribute should be cloned or discarded. And then,
when preparing for inserting text, this patch makes it pass to the utility
method.
For better compatibility, we should stop cloning `class` attribute, but not
in this bug because this patch should be minimized for requesting uplift to
beta channel.
Differential Revision: https://phabricator.services.mozilla.com/D107801
9624 lines
374 KiB
C++
9624 lines
374 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=2 sw=2 et tw=80: */
|
|
/* 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 "HTMLEditor.h"
|
|
|
|
#include <algorithm>
|
|
#include <utility>
|
|
|
|
#include "HTMLEditUtils.h"
|
|
#include "WSRunObject.h"
|
|
#include "mozilla/Assertions.h"
|
|
#include "mozilla/CSSEditUtils.h"
|
|
#include "mozilla/CheckedInt.h"
|
|
#include "mozilla/ContentIterator.h"
|
|
#include "mozilla/EditAction.h"
|
|
#include "mozilla/EditorDOMPoint.h"
|
|
#include "mozilla/EditorUtils.h"
|
|
#include "mozilla/InternalMutationEvent.h"
|
|
#include "mozilla/MathAlgorithms.h"
|
|
#include "mozilla/OwningNonNull.h"
|
|
#include "mozilla/Preferences.h"
|
|
#include "mozilla/RangeUtils.h"
|
|
#include "mozilla/StaticPrefs_editor.h" // for StaticPrefs::editor_*
|
|
#include "mozilla/TextComposition.h"
|
|
#include "mozilla/TypeInState.h" // for SpecifiedStyle
|
|
#include "mozilla/UniquePtr.h"
|
|
#include "mozilla/Unused.h"
|
|
#include "mozilla/dom/AncestorIterator.h"
|
|
#include "mozilla/dom/Element.h"
|
|
#include "mozilla/dom/HTMLBRElement.h"
|
|
#include "mozilla/dom/RangeBinding.h"
|
|
#include "mozilla/dom/Selection.h"
|
|
#include "mozilla/dom/StaticRange.h"
|
|
#include "mozilla/mozalloc.h"
|
|
#include "nsAString.h"
|
|
#include "nsAlgorithm.h"
|
|
#include "nsAtom.h"
|
|
#include "nsCRT.h"
|
|
#include "nsCRTGlue.h"
|
|
#include "nsComponentManagerUtils.h"
|
|
#include "nsContentUtils.h"
|
|
#include "nsDebug.h"
|
|
#include "nsError.h"
|
|
#include "nsFrameSelection.h"
|
|
#include "nsGkAtoms.h"
|
|
#include "nsHTMLDocument.h"
|
|
#include "nsIContent.h"
|
|
#include "nsID.h"
|
|
#include "nsIFrame.h"
|
|
#include "nsINode.h"
|
|
#include "nsLiteralString.h"
|
|
#include "nsRange.h"
|
|
#include "nsReadableUtils.h"
|
|
#include "nsString.h"
|
|
#include "nsStringFwd.h"
|
|
#include "nsStyledElement.h"
|
|
#include "nsTArray.h"
|
|
#include "nsTextNode.h"
|
|
#include "nsThreadUtils.h"
|
|
#include "nsUnicharUtils.h"
|
|
|
|
// Workaround for windows headers
|
|
#ifdef SetProp
|
|
# undef SetProp
|
|
#endif
|
|
|
|
class nsISupports;
|
|
|
|
namespace mozilla {
|
|
|
|
using namespace dom;
|
|
using LeafNodeType = HTMLEditUtils::LeafNodeType;
|
|
using LeafNodeTypes = HTMLEditUtils::LeafNodeTypes;
|
|
using StyleDifference = HTMLEditUtils::StyleDifference;
|
|
|
|
/********************************************************
|
|
* first some helpful functors we will use
|
|
********************************************************/
|
|
|
|
static bool IsStyleCachePreservingSubAction(EditSubAction aEditSubAction) {
|
|
switch (aEditSubAction) {
|
|
case EditSubAction::eDeleteSelectedContent:
|
|
case EditSubAction::eInsertLineBreak:
|
|
case EditSubAction::eInsertParagraphSeparator:
|
|
case EditSubAction::eCreateOrChangeList:
|
|
case EditSubAction::eIndent:
|
|
case EditSubAction::eOutdent:
|
|
case EditSubAction::eSetOrClearAlignment:
|
|
case EditSubAction::eCreateOrRemoveBlock:
|
|
case EditSubAction::eMergeBlockContents:
|
|
case EditSubAction::eRemoveList:
|
|
case EditSubAction::eCreateOrChangeDefinitionListItem:
|
|
case EditSubAction::eInsertElement:
|
|
case EditSubAction::eInsertQuotation:
|
|
case EditSubAction::eInsertQuotedText:
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
template void HTMLEditor::SelectBRElementIfCollapsedInEmptyBlock(
|
|
RangeBoundary& aStartRef, RangeBoundary& aEndRef) const;
|
|
template void HTMLEditor::SelectBRElementIfCollapsedInEmptyBlock(
|
|
RawRangeBoundary& aStartRef, RangeBoundary& aEndRef) const;
|
|
template void HTMLEditor::SelectBRElementIfCollapsedInEmptyBlock(
|
|
RangeBoundary& aStartRef, RawRangeBoundary& aEndRef) const;
|
|
template void HTMLEditor::SelectBRElementIfCollapsedInEmptyBlock(
|
|
RawRangeBoundary& aStartRef, RawRangeBoundary& aEndRef) const;
|
|
template already_AddRefed<nsRange>
|
|
HTMLEditor::CreateRangeIncludingAdjuscentWhiteSpaces(
|
|
const RangeBoundary& aStartRef, const RangeBoundary& aEndRef);
|
|
template already_AddRefed<nsRange>
|
|
HTMLEditor::CreateRangeIncludingAdjuscentWhiteSpaces(
|
|
const RawRangeBoundary& aStartRef, const RangeBoundary& aEndRef);
|
|
template already_AddRefed<nsRange>
|
|
HTMLEditor::CreateRangeIncludingAdjuscentWhiteSpaces(
|
|
const RangeBoundary& aStartRef, const RawRangeBoundary& aEndRef);
|
|
template already_AddRefed<nsRange>
|
|
HTMLEditor::CreateRangeIncludingAdjuscentWhiteSpaces(
|
|
const RawRangeBoundary& aStartRef, const RawRangeBoundary& aEndRef);
|
|
template already_AddRefed<nsRange>
|
|
HTMLEditor::CreateRangeExtendedToHardLineStartAndEnd(
|
|
const RangeBoundary& aStartRef, const RangeBoundary& aEndRef,
|
|
EditSubAction aEditSubAction) const;
|
|
template already_AddRefed<nsRange>
|
|
HTMLEditor::CreateRangeExtendedToHardLineStartAndEnd(
|
|
const RawRangeBoundary& aStartRef, const RangeBoundary& aEndRef,
|
|
EditSubAction aEditSubAction) const;
|
|
template already_AddRefed<nsRange>
|
|
HTMLEditor::CreateRangeExtendedToHardLineStartAndEnd(
|
|
const RangeBoundary& aStartRef, const RawRangeBoundary& aEndRef,
|
|
EditSubAction aEditSubAction) const;
|
|
template already_AddRefed<nsRange>
|
|
HTMLEditor::CreateRangeExtendedToHardLineStartAndEnd(
|
|
const RawRangeBoundary& aStartRef, const RawRangeBoundary& aEndRef,
|
|
EditSubAction aEditSubAction) const;
|
|
template EditorDOMPoint HTMLEditor::GetWhiteSpaceEndPoint(
|
|
const RangeBoundary& aPoint, ScanDirection aScanDirection);
|
|
template EditorDOMPoint HTMLEditor::GetWhiteSpaceEndPoint(
|
|
const RawRangeBoundary& aPoint, ScanDirection aScanDirection);
|
|
template EditorDOMPoint HTMLEditor::GetCurrentHardLineStartPoint(
|
|
const RangeBoundary& aPoint, EditSubAction aEditSubAction) const;
|
|
template EditorDOMPoint HTMLEditor::GetCurrentHardLineStartPoint(
|
|
const RawRangeBoundary& aPoint, EditSubAction aEditSubAction) const;
|
|
template EditorDOMPoint HTMLEditor::GetCurrentHardLineEndPoint(
|
|
const RangeBoundary& aPoint) const;
|
|
template EditorDOMPoint HTMLEditor::GetCurrentHardLineEndPoint(
|
|
const RawRangeBoundary& aPoint) const;
|
|
template nsIContent* HTMLEditor::FindNearEditableContent(
|
|
const EditorDOMPoint& aPoint, nsIEditor::EDirection aDirection);
|
|
template nsIContent* HTMLEditor::FindNearEditableContent(
|
|
const EditorRawDOMPoint& aPoint, nsIEditor::EDirection aDirection);
|
|
|
|
nsresult HTMLEditor::InitEditorContentAndSelection() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
nsresult rv = TextEditor::InitEditorContentAndSelection();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("TextEditor::InitEditorContentAndSelection() failed");
|
|
return rv;
|
|
}
|
|
|
|
Element* bodyOrDocumentElement = GetRoot();
|
|
if (NS_WARN_IF(!bodyOrDocumentElement && !GetDocument())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (!bodyOrDocumentElement) {
|
|
return NS_OK;
|
|
}
|
|
|
|
rv = InsertBRElementToEmptyListItemsAndTableCellsInRange(
|
|
RawRangeBoundary(bodyOrDocumentElement, 0u),
|
|
RawRangeBoundary(bodyOrDocumentElement,
|
|
bodyOrDocumentElement->GetChildCount()));
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::InsertBRElementToEmptyListItemsAndTableCellsInRange() "
|
|
"failed, but ignored");
|
|
return NS_OK;
|
|
}
|
|
|
|
void HTMLEditor::OnStartToHandleTopLevelEditSubAction(
|
|
EditSubAction aTopLevelEditSubAction,
|
|
nsIEditor::EDirection aDirectionOfTopLevelEditSubAction, ErrorResult& aRv) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(!aRv.Failed());
|
|
|
|
EditorBase::OnStartToHandleTopLevelEditSubAction(
|
|
aTopLevelEditSubAction, aDirectionOfTopLevelEditSubAction, aRv);
|
|
|
|
MOZ_ASSERT(GetTopLevelEditSubAction() == aTopLevelEditSubAction);
|
|
MOZ_ASSERT(GetDirectionOfTopLevelEditSubAction() ==
|
|
aDirectionOfTopLevelEditSubAction);
|
|
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
aRv.Throw(NS_ERROR_EDITOR_DESTROYED);
|
|
return;
|
|
}
|
|
|
|
if (!mInitSucceeded) {
|
|
return; // We should do nothing if we're being initialized.
|
|
}
|
|
|
|
NS_WARNING_ASSERTION(
|
|
!aRv.Failed(),
|
|
"EditorBase::OnStartToHandleTopLevelEditSubAction() failed");
|
|
|
|
// Remember where our selection was before edit action took place:
|
|
if (GetCompositionStartPoint().IsSet()) {
|
|
// If there is composition string, let's remember current composition
|
|
// range.
|
|
TopLevelEditSubActionDataRef().mSelectedRange->StoreRange(
|
|
GetCompositionStartPoint(), GetCompositionEndPoint());
|
|
} else {
|
|
// Get the selection location
|
|
// XXX This may occur so that I think that we shouldn't throw exception
|
|
// in this case.
|
|
if (NS_WARN_IF(!SelectionRefPtr()->RangeCount())) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return;
|
|
}
|
|
if (const nsRange* range = SelectionRefPtr()->GetRangeAt(0)) {
|
|
TopLevelEditSubActionDataRef().mSelectedRange->StoreRange(*range);
|
|
}
|
|
}
|
|
|
|
// Register with range updater to track this as we perturb the doc
|
|
RangeUpdaterRef().RegisterRangeItem(
|
|
*TopLevelEditSubActionDataRef().mSelectedRange);
|
|
|
|
// Remember current inline styles for deletion and normal insertion ops
|
|
bool cacheInlineStyles;
|
|
switch (aTopLevelEditSubAction) {
|
|
case EditSubAction::eInsertText:
|
|
case EditSubAction::eInsertTextComingFromIME:
|
|
case EditSubAction::eDeleteSelectedContent:
|
|
cacheInlineStyles = true;
|
|
break;
|
|
default:
|
|
cacheInlineStyles =
|
|
IsStyleCachePreservingSubAction(aTopLevelEditSubAction);
|
|
break;
|
|
}
|
|
if (cacheInlineStyles) {
|
|
nsCOMPtr<nsIContent> containerContent = nsIContent::FromNodeOrNull(
|
|
aDirectionOfTopLevelEditSubAction == nsIEditor::eNext
|
|
? TopLevelEditSubActionDataRef().mSelectedRange->mEndContainer
|
|
: TopLevelEditSubActionDataRef().mSelectedRange->mStartContainer);
|
|
if (NS_WARN_IF(!containerContent)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
nsresult rv = CacheInlineStyles(*containerContent);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::CacheInlineStyles() failed");
|
|
aRv.Throw(rv);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Stabilize the document against contenteditable count changes
|
|
Document* document = GetDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
if (document->GetEditingState() == Document::EditingState::eContentEditable) {
|
|
document->ChangeContentEditableCount(nullptr, +1);
|
|
TopLevelEditSubActionDataRef().mRestoreContentEditableCount = true;
|
|
}
|
|
|
|
// Check that selection is in subtree defined by body node
|
|
nsresult rv = EnsureSelectionInBodyOrDocumentElement();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
aRv.Throw(NS_ERROR_EDITOR_DESTROYED);
|
|
return;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::EnsureSelectionInBodyOrDocumentElement() "
|
|
"failed, but ignored");
|
|
}
|
|
|
|
nsresult HTMLEditor::OnEndHandlingTopLevelEditSubAction() {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
nsresult rv;
|
|
while (true) {
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
rv = NS_ERROR_EDITOR_DESTROYED;
|
|
break;
|
|
}
|
|
|
|
if (!mInitSucceeded) {
|
|
rv = NS_OK; // We should do nothing if we're being initialized.
|
|
break;
|
|
}
|
|
|
|
// Do all the tricky stuff
|
|
rv = OnEndHandlingTopLevelEditSubActionInternal();
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::OnEndHandlingTopLevelEditSubActionInternal() failied");
|
|
// Perhaps, we need to do the following jobs even if the editor has been
|
|
// destroyed since they adjust some states of HTML document but don't
|
|
// modify the DOM tree nor Selection.
|
|
|
|
// Free up selectionState range item
|
|
if (TopLevelEditSubActionDataRef().mSelectedRange) {
|
|
RangeUpdaterRef().DropRangeItem(
|
|
*TopLevelEditSubActionDataRef().mSelectedRange);
|
|
}
|
|
|
|
// Reset the contenteditable count to its previous value
|
|
if (TopLevelEditSubActionDataRef().mRestoreContentEditableCount) {
|
|
Document* document = GetDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
rv = NS_ERROR_FAILURE;
|
|
break;
|
|
}
|
|
if (document->GetEditingState() ==
|
|
Document::EditingState::eContentEditable) {
|
|
document->ChangeContentEditableCount(nullptr, -1);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
DebugOnly<nsresult> rvIgnored =
|
|
EditorBase::OnEndHandlingTopLevelEditSubAction();
|
|
NS_WARNING_ASSERTION(
|
|
NS_FAILED(rv) || NS_SUCCEEDED(rvIgnored),
|
|
"EditorBase::OnEndHandlingTopLevelEditSubAction() failed, but ignored");
|
|
MOZ_ASSERT(!GetTopLevelEditSubAction());
|
|
MOZ_ASSERT(GetDirectionOfTopLevelEditSubAction() == eNone);
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::OnEndHandlingTopLevelEditSubActionInternal() {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
nsresult rv = EnsureSelectionInBodyOrDocumentElement();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::EnsureSelectionInBodyOrDocumentElement() "
|
|
"failed, but ignored");
|
|
|
|
switch (GetTopLevelEditSubAction()) {
|
|
case EditSubAction::eReplaceHeadWithHTMLSource:
|
|
case EditSubAction::eCreatePaddingBRElementForEmptyEditor:
|
|
return NS_OK;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (TopLevelEditSubActionDataRef().mChangedRange->IsPositioned() &&
|
|
GetTopLevelEditSubAction() != EditSubAction::eUndo &&
|
|
GetTopLevelEditSubAction() != EditSubAction::eRedo) {
|
|
// don't let any txns in here move the selection around behind our back.
|
|
// Note that this won't prevent explicit selection setting from working.
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
|
|
switch (GetTopLevelEditSubAction()) {
|
|
case EditSubAction::eInsertText:
|
|
case EditSubAction::eInsertTextComingFromIME:
|
|
case EditSubAction::eInsertLineBreak:
|
|
case EditSubAction::eInsertParagraphSeparator:
|
|
case EditSubAction::eDeleteText: {
|
|
// XXX We should investigate whether this is really needed because it
|
|
// seems that the following code does not handle the white-spaces.
|
|
RefPtr<nsRange> extendedChangedRange =
|
|
CreateRangeIncludingAdjuscentWhiteSpaces(
|
|
*TopLevelEditSubActionDataRef().mChangedRange);
|
|
if (extendedChangedRange) {
|
|
MOZ_ASSERT(extendedChangedRange->IsPositioned());
|
|
// Use extended range temporarily.
|
|
TopLevelEditSubActionDataRef().mChangedRange =
|
|
std::move(extendedChangedRange);
|
|
}
|
|
break;
|
|
}
|
|
default: {
|
|
RefPtr<nsRange> extendedChangedRange =
|
|
CreateRangeExtendedToHardLineStartAndEnd(
|
|
*TopLevelEditSubActionDataRef().mChangedRange,
|
|
GetTopLevelEditSubAction());
|
|
if (extendedChangedRange) {
|
|
MOZ_ASSERT(extendedChangedRange->IsPositioned());
|
|
// Use extended range temporarily.
|
|
TopLevelEditSubActionDataRef().mChangedRange =
|
|
std::move(extendedChangedRange);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// if we did a ranged deletion or handling backspace key, make sure we have
|
|
// a place to put caret.
|
|
// Note we only want to do this if the overall operation was deletion,
|
|
// not if deletion was done along the way for
|
|
// EditSubAction::eInsertHTMLSource, EditSubAction::eInsertText, etc.
|
|
// That's why this is here rather than DeleteSelectionAsSubAction().
|
|
// However, we shouldn't insert <br> elements if we've already removed
|
|
// empty block parents because users may want to disappear the line by
|
|
// the deletion.
|
|
// XXX We should make HandleDeleteSelection() store expected container
|
|
// for handling this here since we cannot trust current selection is
|
|
// collapsed at deleted point.
|
|
if (GetTopLevelEditSubAction() == EditSubAction::eDeleteSelectedContent &&
|
|
TopLevelEditSubActionDataRef().mDidDeleteNonCollapsedRange &&
|
|
!TopLevelEditSubActionDataRef().mDidDeleteEmptyParentBlocks) {
|
|
EditorDOMPoint newCaretPosition =
|
|
EditorBase::GetStartPoint(*SelectionRefPtr());
|
|
if (!newCaretPosition.IsSet()) {
|
|
NS_WARNING("There was no selection range");
|
|
return NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE;
|
|
}
|
|
nsresult rv = InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
|
|
newCaretPosition);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::"
|
|
"InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary() "
|
|
"failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// add in any needed <br>s, and remove any unneeded ones.
|
|
nsresult rv = InsertBRElementToEmptyListItemsAndTableCellsInRange(
|
|
TopLevelEditSubActionDataRef().mChangedRange->StartRef().AsRaw(),
|
|
TopLevelEditSubActionDataRef().mChangedRange->EndRef().AsRaw());
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::InsertBRElementToEmptyListItemsAndTableCellsInRange()"
|
|
" failed, but ignored");
|
|
|
|
// merge any adjacent text nodes
|
|
switch (GetTopLevelEditSubAction()) {
|
|
case EditSubAction::eInsertText:
|
|
case EditSubAction::eInsertTextComingFromIME:
|
|
break;
|
|
default: {
|
|
nsresult rv = CollapseAdjacentTextNodes(
|
|
MOZ_KnownLive(*TopLevelEditSubActionDataRef().mChangedRange));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::CollapseAdjacentTextNodes() failed");
|
|
return rv;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// clean up any empty nodes in the selection
|
|
rv = RemoveEmptyNodesIn(
|
|
MOZ_KnownLive(*TopLevelEditSubActionDataRef().mChangedRange));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveEmptyNodesIn() failed");
|
|
return rv;
|
|
}
|
|
|
|
// attempt to transform any unneeded nbsp's into spaces after doing various
|
|
// operations
|
|
switch (GetTopLevelEditSubAction()) {
|
|
case EditSubAction::eDeleteSelectedContent:
|
|
if (TopLevelEditSubActionDataRef().mDidNormalizeWhitespaces) {
|
|
break;
|
|
}
|
|
[[fallthrough]];
|
|
case EditSubAction::eInsertText:
|
|
case EditSubAction::eInsertTextComingFromIME:
|
|
case EditSubAction::eInsertLineBreak:
|
|
case EditSubAction::eInsertParagraphSeparator:
|
|
case EditSubAction::ePasteHTMLContent:
|
|
case EditSubAction::eInsertHTMLSource: {
|
|
// TODO: Temporarily, WhiteSpaceVisibilityKeeper replaces ASCII
|
|
// white-spaces with NPSPs and then, we'll replace them with ASCII
|
|
// white-spaces here. We should avoid this overwriting things as
|
|
// far as possible because replacing characters in text nodes
|
|
// causes running mutation event listeners which are really
|
|
// expensive.
|
|
// Adjust end of composition string if there is composition string.
|
|
EditorRawDOMPoint pointToAdjust(GetCompositionEndPoint());
|
|
if (!pointToAdjust.IsSet()) {
|
|
// Otherwise, adjust current selection start point.
|
|
pointToAdjust = EditorBase::GetStartPoint(*SelectionRefPtr());
|
|
if (NS_WARN_IF(!pointToAdjust.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
rv = WhiteSpaceVisibilityKeeper::NormalizeVisibleWhiteSpacesAt(
|
|
*this, pointToAdjust);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"WhiteSpaceVisibilityKeeper::NormalizeVisibleWhiteSpacesAt() "
|
|
"failed");
|
|
return rv;
|
|
}
|
|
|
|
// also do this for original selection endpoints.
|
|
// XXX Hmm, if `NormalizeVisibleWhiteSpacesAt()` runs mutation event
|
|
// listener and that causes changing `mSelectedRange`, what we
|
|
// should do?
|
|
if (NS_WARN_IF(
|
|
!TopLevelEditSubActionDataRef().mSelectedRange->IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
rv = WhiteSpaceVisibilityKeeper::NormalizeVisibleWhiteSpacesAt(
|
|
*this,
|
|
TopLevelEditSubActionDataRef().mSelectedRange->StartRawPoint());
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"WhiteSpaceVisibilityKeeper::NormalizeVisibleWhiteSpacesAt() "
|
|
"failed, but ignored");
|
|
// we only need to handle old selection endpoint if it was different
|
|
// from start
|
|
if (TopLevelEditSubActionDataRef().mSelectedRange->IsCollapsed()) {
|
|
nsresult rv =
|
|
WhiteSpaceVisibilityKeeper::NormalizeVisibleWhiteSpacesAt(
|
|
*this,
|
|
TopLevelEditSubActionDataRef().mSelectedRange->EndRawPoint());
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"WhiteSpaceVisibilityKeeper::NormalizeVisibleWhiteSpacesAt() "
|
|
"failed, but ignored");
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// If we created a new block, make sure caret is in it.
|
|
if (TopLevelEditSubActionDataRef().mNewBlockElement &&
|
|
SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = EnsureCaretInBlockElement(
|
|
MOZ_KnownLive(*TopLevelEditSubActionDataRef().mNewBlockElement));
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::EnsureSelectionInBlockElement() failed, but ignored");
|
|
}
|
|
|
|
// Adjust selection for insert text, html paste, and delete actions if
|
|
// we haven't removed new empty blocks. Note that if empty block parents
|
|
// are removed, Selection should've been adjusted by the method which
|
|
// did it.
|
|
if (!TopLevelEditSubActionDataRef().mDidDeleteEmptyParentBlocks &&
|
|
SelectionRefPtr()->IsCollapsed()) {
|
|
switch (GetTopLevelEditSubAction()) {
|
|
case EditSubAction::eInsertText:
|
|
case EditSubAction::eInsertTextComingFromIME:
|
|
case EditSubAction::eDeleteSelectedContent:
|
|
case EditSubAction::eInsertLineBreak:
|
|
case EditSubAction::eInsertParagraphSeparator:
|
|
case EditSubAction::ePasteHTMLContent:
|
|
case EditSubAction::eInsertHTMLSource:
|
|
// XXX AdjustCaretPositionAndEnsurePaddingBRElement() intentionally
|
|
// does not create padding `<br>` element for empty editor.
|
|
// Investigate which is better that whether this should does it
|
|
// or wait MaybeCreatePaddingBRElementForEmptyEditor().
|
|
rv = AdjustCaretPositionAndEnsurePaddingBRElement(
|
|
GetDirectionOfTopLevelEditSubAction());
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::AdjustCaretPositionAndEnsurePaddingBRElement() "
|
|
"failed");
|
|
return rv;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
// check for any styles which were removed inappropriately
|
|
bool reapplyCachedStyle;
|
|
switch (GetTopLevelEditSubAction()) {
|
|
case EditSubAction::eInsertText:
|
|
case EditSubAction::eInsertTextComingFromIME:
|
|
case EditSubAction::eDeleteSelectedContent:
|
|
reapplyCachedStyle = true;
|
|
break;
|
|
default:
|
|
reapplyCachedStyle =
|
|
IsStyleCachePreservingSubAction(GetTopLevelEditSubAction());
|
|
break;
|
|
}
|
|
if (reapplyCachedStyle) {
|
|
DebugOnly<nsresult> rvIgnored =
|
|
mTypeInState->UpdateSelState(SelectionRefPtr());
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
|
|
"TypeInState::UpdateSelState() failed, but ignored");
|
|
rv = ReapplyCachedStyles();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::ReapplyCachedStyles() failed");
|
|
return rv;
|
|
}
|
|
TopLevelEditSubActionDataRef().mCachedInlineStyles->Clear();
|
|
}
|
|
}
|
|
|
|
rv = HandleInlineSpellCheck(
|
|
TopLevelEditSubActionDataRef().mSelectedRange->StartPoint(),
|
|
TopLevelEditSubActionDataRef().mChangedRange);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("EditorBase::HandleInlineSpellCheck() failed");
|
|
return rv;
|
|
}
|
|
|
|
// detect empty doc
|
|
// XXX Need to investigate when the padding <br> element is removed because
|
|
// I don't see the <br> element with testing manually. If it won't be
|
|
// used, we can get rid of this cost.
|
|
rv = MaybeCreatePaddingBRElementForEmptyEditor();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"EditorBase::MaybeCreatePaddingBRElementForEmptyEditor() failed");
|
|
return rv;
|
|
}
|
|
|
|
// adjust selection HINT if needed
|
|
if (!TopLevelEditSubActionDataRef().mDidExplicitlySetInterLine &&
|
|
SelectionRefPtr()->IsCollapsed()) {
|
|
SetSelectionInterlinePosition();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::CanHandleHTMLEditSubAction() const {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
|
|
// If there is not selection ranges, we should ignore the result.
|
|
if (!SelectionRefPtr()->RangeCount()) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
const nsRange* range = SelectionRefPtr()->GetRangeAt(0);
|
|
nsINode* selStartNode = range->GetStartContainer();
|
|
if (NS_WARN_IF(!selStartNode)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
if (!HTMLEditUtils::IsSimplyEditableNode(*selStartNode)) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
nsINode* selEndNode = range->GetEndContainer();
|
|
if (NS_WARN_IF(!selEndNode)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
if (selStartNode == selEndNode) {
|
|
return EditActionIgnored();
|
|
}
|
|
|
|
if (!HTMLEditUtils::IsSimplyEditableNode(*selEndNode)) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
// XXX What does it mean the common ancestor is editable? I have no idea.
|
|
// It should be in same (active) editing host, and even if it's editable,
|
|
// there may be non-editable contents in the range.
|
|
nsINode* commonAncestor = range->GetClosestCommonInclusiveAncestor();
|
|
if (!commonAncestor) {
|
|
NS_WARNING(
|
|
"AbstractRange::GetClosestCommonInclusiveAncestor() returned nullptr");
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
return HTMLEditUtils::IsSimplyEditableNode(*commonAncestor)
|
|
? EditActionIgnored()
|
|
: EditActionCanceled();
|
|
}
|
|
|
|
MOZ_CAN_RUN_SCRIPT static nsStaticAtom& MarginPropertyAtomForIndent(
|
|
nsIContent& aContent) {
|
|
nsAutoString direction;
|
|
DebugOnly<nsresult> rvIgnored = CSSEditUtils::GetComputedProperty(
|
|
aContent, *nsGkAtoms::direction, direction);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
|
|
"CSSEditUtils::GetComputedProperty(nsGkAtoms::direction)"
|
|
" failed, but ignored");
|
|
return direction.EqualsLiteral("rtl") ? *nsGkAtoms::marginRight
|
|
: *nsGkAtoms::marginLeft;
|
|
}
|
|
|
|
nsresult HTMLEditor::EnsureCaretNotAfterPaddingBRElement() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(SelectionRefPtr()->IsCollapsed());
|
|
|
|
// If we are after a padding `<br>` element for empty last line in the same
|
|
// block, then move selection to be before it
|
|
const nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorRawDOMPoint atSelectionStart(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atSelectionStart.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
MOZ_ASSERT(atSelectionStart.IsSetAndValid());
|
|
|
|
nsCOMPtr<nsIContent> previousEditableContent =
|
|
GetPreviousEditableHTMLNode(atSelectionStart);
|
|
if (!previousEditableContent ||
|
|
!EditorUtils::IsPaddingBRElementForEmptyLastLine(
|
|
*previousEditableContent)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!atSelectionStart.IsInContentNode()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<Element> blockElementAtSelectionStart =
|
|
HTMLEditUtils::GetInclusiveAncestorBlockElement(
|
|
*atSelectionStart.ContainerAsContent());
|
|
RefPtr<Element> parentBlockElementOfPreviousEditableContent =
|
|
HTMLEditUtils::GetAncestorBlockElement(*previousEditableContent);
|
|
|
|
if (!blockElementAtSelectionStart ||
|
|
blockElementAtSelectionStart !=
|
|
parentBlockElementOfPreviousEditableContent) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// If we are here then the selection is right after a padding <br>
|
|
// element for empty last line that is in the same block as the
|
|
// selection. We need to move the selection start to be before the
|
|
// padding <br> element.
|
|
EditorRawDOMPoint atPreviousEditableContent(previousEditableContent);
|
|
nsresult rv = CollapseSelectionTo(atPreviousEditableContent);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::PrepareInlineStylesForCaret() {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
MOZ_ASSERT(SelectionRefPtr()->IsCollapsed());
|
|
|
|
// XXX This method works with the top level edit sub-action, but this
|
|
// must be wrong if we are handling nested edit action.
|
|
|
|
if (TopLevelEditSubActionDataRef().mDidDeleteSelection) {
|
|
switch (GetTopLevelEditSubAction()) {
|
|
case EditSubAction::eInsertText:
|
|
case EditSubAction::eInsertTextComingFromIME:
|
|
case EditSubAction::eDeleteSelectedContent: {
|
|
nsresult rv = ReapplyCachedStyles();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::ReapplyCachedStyles() failed");
|
|
return rv;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
// For most actions we want to clear the cached styles, but there are
|
|
// exceptions
|
|
if (!IsStyleCachePreservingSubAction(GetTopLevelEditSubAction())) {
|
|
TopLevelEditSubActionDataRef().mCachedInlineStyles->Clear();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleInsertText(
|
|
EditSubAction aEditSubAction, const nsAString& aInsertionString) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
MOZ_ASSERT(aEditSubAction == EditSubAction::eInsertText ||
|
|
aEditSubAction == EditSubAction::eInsertTextComingFromIME);
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (result.Failed() || result.Canceled()) {
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::CanHandleHTMLEditSubAction() failed");
|
|
return result;
|
|
}
|
|
|
|
UndefineCaretBidiLevel();
|
|
|
|
// If the selection isn't collapsed, delete it. Don't delete existing inline
|
|
// tags, because we're hopefully going to insert text (bug 787432).
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv =
|
|
DeleteSelectionAsSubAction(nsIEditor::eNone, nsIEditor::eNoStrip);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"EditorBase::DeleteSelectionAsSubAction(nsIEditor::eNone, "
|
|
"nsIEditor::eNoStrip) failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
}
|
|
|
|
nsresult rv = EnsureNoPaddingBRElementForEmptyEditor();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"EditorBase::EnsureNoPaddingBRElementForEmptyEditor() "
|
|
"failed, but ignored");
|
|
|
|
if (NS_SUCCEEDED(rv) && SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = EnsureCaretNotAfterPaddingBRElement();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::EnsureCaretNotAfterPaddingBRElement() "
|
|
"failed, but ignored");
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsresult rv = PrepareInlineStylesForCaret();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::PrepareInlineStylesForCaret() failed, but ignored");
|
|
}
|
|
}
|
|
|
|
RefPtr<Document> document = GetDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
RefPtr<const nsRange> firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
// for every property that is set, insert a new inline style node
|
|
// XXX CreateStyleForInsertText() adjusts selection automatically, but
|
|
// it should just return the insertion point instead.
|
|
rv = CreateStyleForInsertText(*firstRange);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::CreateStyleForInsertText() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
EditorDOMPoint pointToInsert(firstRange->StartRef());
|
|
if (NS_WARN_IF(!pointToInsert.IsSet()) ||
|
|
NS_WARN_IF(!pointToInsert.IsInContentNode())) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
MOZ_ASSERT(pointToInsert.IsSetAndValid());
|
|
|
|
// dont put text in places that can't have it
|
|
if (!pointToInsert.IsInTextNode() &&
|
|
!HTMLEditUtils::CanNodeContain(*pointToInsert.GetContainer(),
|
|
*nsGkAtoms::textTagName)) {
|
|
NS_WARNING("Selection start container couldn't have text nodes");
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
if (aEditSubAction == EditSubAction::eInsertTextComingFromIME) {
|
|
EditorRawDOMPoint compositionStartPoint = GetCompositionStartPoint();
|
|
if (!compositionStartPoint.IsSet()) {
|
|
compositionStartPoint = pointToInsert;
|
|
}
|
|
|
|
if (aInsertionString.IsEmpty()) {
|
|
// Right now the WhiteSpaceVisibilityKeeper code bails on empty strings,
|
|
// but IME needs the InsertTextWithTransaction() call to still happen
|
|
// since empty strings are meaningful there.
|
|
nsresult rv = InsertTextWithTransaction(*document, aInsertionString,
|
|
compositionStartPoint);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::InsertTextWithTransaction() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
EditorRawDOMPoint compositionEndPoint = GetCompositionEndPoint();
|
|
if (!compositionEndPoint.IsSet()) {
|
|
compositionEndPoint = compositionStartPoint;
|
|
}
|
|
nsresult rv = WhiteSpaceVisibilityKeeper::ReplaceText(
|
|
*this, aInsertionString,
|
|
EditorDOMRange(compositionStartPoint, compositionEndPoint));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("WhiteSpaceVisibilityKeeper::ReplaceText() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
compositionStartPoint = GetCompositionStartPoint();
|
|
compositionEndPoint = GetCompositionEndPoint();
|
|
if (NS_WARN_IF(!compositionStartPoint.IsSet()) ||
|
|
NS_WARN_IF(!compositionEndPoint.IsSet())) {
|
|
// Mutation event listener has changed the DOM tree...
|
|
return EditActionHandled();
|
|
}
|
|
rv = TopLevelEditSubActionDataRef().mChangedRange->SetStartAndEnd(
|
|
compositionStartPoint.ToRawRangeBoundary(),
|
|
compositionEndPoint.ToRawRangeBoundary());
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "nsRange::SetStartAndEnd() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
MOZ_ASSERT(aEditSubAction == EditSubAction::eInsertText);
|
|
|
|
// find where we are
|
|
EditorDOMPoint currentPoint(pointToInsert);
|
|
|
|
// is our text going to be PREformatted?
|
|
// We remember this so that we know how to handle tabs.
|
|
bool isPRE =
|
|
EditorUtils::IsContentPreformatted(*pointToInsert.ContainerAsContent());
|
|
|
|
// turn off the edit listener: we know how to
|
|
// build the "doc changed range" ourselves, and it's
|
|
// must faster to do it once here than to track all
|
|
// the changes one at a time.
|
|
AutoRestore<bool> disableListener(
|
|
EditSubActionDataRef().mAdjustChangedRangeFromListener);
|
|
EditSubActionDataRef().mAdjustChangedRangeFromListener = false;
|
|
|
|
// don't change my selection in subtransactions
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
int32_t pos = 0;
|
|
constexpr auto newlineStr = NS_LITERAL_STRING_FROM_CSTRING(LFSTR);
|
|
|
|
{
|
|
AutoTrackDOMPoint tracker(RangeUpdaterRef(), &pointToInsert);
|
|
|
|
// for efficiency, break out the pre case separately. This is because
|
|
// its a lot cheaper to search the input string for only newlines than
|
|
// it is to search for both tabs and newlines.
|
|
if (isPRE || IsPlaintextEditor()) {
|
|
while (pos != -1 &&
|
|
pos < static_cast<int32_t>(aInsertionString.Length())) {
|
|
int32_t oldPos = pos;
|
|
int32_t subStrLen;
|
|
pos = aInsertionString.FindChar(nsCRT::LF, oldPos);
|
|
|
|
if (pos != -1) {
|
|
subStrLen = pos - oldPos;
|
|
// if first char is newline, then use just it
|
|
if (!subStrLen) {
|
|
subStrLen = 1;
|
|
}
|
|
} else {
|
|
subStrLen = aInsertionString.Length() - oldPos;
|
|
pos = aInsertionString.Length();
|
|
}
|
|
|
|
nsDependentSubstring subStr(aInsertionString, oldPos, subStrLen);
|
|
|
|
// is it a return?
|
|
if (subStr.Equals(newlineStr)) {
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(currentPoint, nsIEditor::eNone);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!brElement) {
|
|
NS_WARNING(
|
|
"HTMLEditor::InsertBRElementWithTransaction(eNone) failed");
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
pos++;
|
|
if (brElement->GetNextSibling()) {
|
|
pointToInsert.Set(brElement->GetNextSibling());
|
|
} else {
|
|
pointToInsert.SetToEndOf(currentPoint.GetContainer());
|
|
}
|
|
// XXX In most cases, pointToInsert and currentPoint are same here.
|
|
// But if the <br> element has been moved to different point by
|
|
// mutation observer, those points become different.
|
|
currentPoint.SetAfter(brElement);
|
|
NS_WARNING_ASSERTION(currentPoint.IsSet(),
|
|
"Failed to set after the <br> element");
|
|
NS_WARNING_ASSERTION(currentPoint == pointToInsert,
|
|
"Perhaps, <br> element position has been moved "
|
|
"to different point "
|
|
"by mutation observer");
|
|
} else {
|
|
EditorRawDOMPoint pointAfterInsertedString;
|
|
nsresult rv = InsertTextWithTransaction(
|
|
*document, subStr, EditorRawDOMPoint(currentPoint),
|
|
&pointAfterInsertedString);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::InsertTextWithTransaction() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
currentPoint = pointAfterInsertedString;
|
|
pointToInsert = pointAfterInsertedString;
|
|
}
|
|
}
|
|
} else {
|
|
constexpr auto tabStr = u"\t"_ns;
|
|
constexpr auto spacesStr = u" "_ns;
|
|
char specialChars[] = {TAB, nsCRT::LF, 0};
|
|
nsAutoString insertionString(aInsertionString); // For FindCharInSet().
|
|
while (pos != -1 &&
|
|
pos < static_cast<int32_t>(insertionString.Length())) {
|
|
int32_t oldPos = pos;
|
|
int32_t subStrLen;
|
|
pos = insertionString.FindCharInSet(specialChars, oldPos);
|
|
|
|
if (pos != -1) {
|
|
subStrLen = pos - oldPos;
|
|
// if first char is newline, then use just it
|
|
if (!subStrLen) {
|
|
subStrLen = 1;
|
|
}
|
|
} else {
|
|
subStrLen = insertionString.Length() - oldPos;
|
|
pos = insertionString.Length();
|
|
}
|
|
|
|
nsDependentSubstring subStr(insertionString, oldPos, subStrLen);
|
|
|
|
// is it a tab?
|
|
if (subStr.Equals(tabStr)) {
|
|
EditorRawDOMPoint pointAfterInsertedSpaces;
|
|
nsresult rv = WhiteSpaceVisibilityKeeper::InsertText(
|
|
*this, spacesStr, currentPoint, &pointAfterInsertedSpaces);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("WhiteSpaceVisibilityKeeper::InsertText() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
pos++;
|
|
MOZ_ASSERT(pointAfterInsertedSpaces.IsSet());
|
|
currentPoint = pointAfterInsertedSpaces;
|
|
pointToInsert = pointAfterInsertedSpaces;
|
|
}
|
|
// is it a return?
|
|
else if (subStr.Equals(newlineStr)) {
|
|
Result<RefPtr<Element>, nsresult> result =
|
|
WhiteSpaceVisibilityKeeper::InsertBRElement(*this, currentPoint);
|
|
if (result.isErr()) {
|
|
NS_WARNING("WhiteSpaceVisibilityKeeper::InsertBRElement() failed");
|
|
return EditActionHandled(result.inspectErr());
|
|
}
|
|
pos++;
|
|
RefPtr<Element> newBRElement = result.unwrap();
|
|
MOZ_DIAGNOSTIC_ASSERT(newBRElement);
|
|
if (newBRElement->GetNextSibling()) {
|
|
pointToInsert.Set(newBRElement->GetNextSibling());
|
|
} else {
|
|
pointToInsert.SetToEndOf(currentPoint.GetContainer());
|
|
}
|
|
currentPoint.SetAfter(newBRElement);
|
|
NS_WARNING_ASSERTION(currentPoint.IsSet(),
|
|
"Failed to set after the new <br> element");
|
|
// XXX If the newBRElement has been moved or removed by mutation
|
|
// observer, we hit this assert. We need to check if
|
|
// newBRElement is in expected point, though, we must have
|
|
// a lot of same bugs...
|
|
NS_WARNING_ASSERTION(
|
|
currentPoint == pointToInsert,
|
|
"Perhaps, newBRElement has been moved or removed unexpectedly");
|
|
} else {
|
|
EditorRawDOMPoint pointAfterInsertedString;
|
|
nsresult rv = WhiteSpaceVisibilityKeeper::InsertText(
|
|
*this, subStr, currentPoint, &pointAfterInsertedString);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("WhiteSpaceVisibilityKeeper::InsertText() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
MOZ_ASSERT(pointAfterInsertedString.IsSet());
|
|
currentPoint = pointAfterInsertedString;
|
|
pointToInsert = pointAfterInsertedString;
|
|
}
|
|
}
|
|
}
|
|
|
|
// After this block, pointToInsert is updated by AutoTrackDOMPoint.
|
|
}
|
|
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->SetInterlinePosition(false, ignoredError);
|
|
NS_WARNING_ASSERTION(!ignoredError.Failed(),
|
|
"Failed to unset interline position");
|
|
|
|
if (currentPoint.IsSet()) {
|
|
nsresult rv = CollapseSelectionTo(currentPoint);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"Selection::Collapse() failed, but ignored");
|
|
}
|
|
|
|
// manually update the doc changed range so that AfterEdit will clean up
|
|
// the correct portion of the document.
|
|
if (currentPoint.IsSet()) {
|
|
nsresult rv = TopLevelEditSubActionDataRef().mChangedRange->SetStartAndEnd(
|
|
pointToInsert.ToRawRangeBoundary(), currentPoint.ToRawRangeBoundary());
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "nsRange::SetStartAndEnd() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
rv = TopLevelEditSubActionDataRef().mChangedRange->CollapseTo(pointToInsert);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "nsRange::CollapseTo() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
EditActionResult HTMLEditor::InsertParagraphSeparatorAsSubAction() {
|
|
if (NS_WARN_IF(!mInitSucceeded)) {
|
|
return EditActionIgnored(NS_ERROR_NOT_INITIALIZED);
|
|
}
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (result.Failed() || result.Canceled()) {
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::CanHandleHTMLEditSubAction() failed");
|
|
return result;
|
|
}
|
|
|
|
// XXX This may be called by execCommand() with "insertParagraph".
|
|
// In such case, naming the transaction "TypingTxnName" is odd.
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this, *nsGkAtoms::TypingTxnName,
|
|
ScrollSelectionIntoView::Yes);
|
|
|
|
IgnoredErrorResult ignoredError;
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eInsertParagraphSeparator, nsIEditor::eNext,
|
|
ignoredError);
|
|
if (NS_WARN_IF(ignoredError.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED))) {
|
|
return EditActionResult(ignoredError.StealNSResult());
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"HTMLEditor::OnStartToHandleTopLevelEditSubAction() failed, but ignored");
|
|
|
|
UndefineCaretBidiLevel();
|
|
|
|
// If the selection isn't collapsed, delete it.
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv =
|
|
DeleteSelectionAsSubAction(nsIEditor::eNone, nsIEditor::eStrip);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"EditorBase::DeleteSelectionAsSubAction(eNone, eStrip) failed");
|
|
return EditActionIgnored(rv);
|
|
}
|
|
}
|
|
|
|
nsresult rv = EnsureNoPaddingBRElementForEmptyEditor();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"EditorBase::EnsureNoPaddingBRElementForEmptyEditor() "
|
|
"failed, but ignored");
|
|
|
|
if (NS_SUCCEEDED(rv) && SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = EnsureCaretNotAfterPaddingBRElement();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::EnsureCaretNotAfterPaddingBRElement() "
|
|
"failed, but ignored");
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsresult rv = PrepareInlineStylesForCaret();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::PrepareInlineStylesForCaret() failed, but ignored");
|
|
}
|
|
}
|
|
|
|
// Split any mailcites in the way. Should we abort this if we encounter
|
|
// table cell boundaries?
|
|
if (IsMailEditor()) {
|
|
EditorDOMPoint pointToSplit(EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
if (NS_WARN_IF(!pointToSplit.IsSet())) {
|
|
return EditActionIgnored(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
EditActionResult result = SplitMailCiteElements(pointToSplit);
|
|
if (result.Failed()) {
|
|
NS_WARNING("HTMLEditor::SplitMailCiteElements() failed");
|
|
return result;
|
|
}
|
|
if (result.Handled()) {
|
|
return result;
|
|
}
|
|
}
|
|
|
|
// Smart splitting rules
|
|
const nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return EditActionIgnored(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
EditorDOMPoint atStartOfSelection(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return EditActionIgnored(NS_ERROR_FAILURE);
|
|
}
|
|
MOZ_ASSERT(atStartOfSelection.IsSetAndValid());
|
|
|
|
// Do nothing if the node is read-only
|
|
if (!HTMLEditUtils::IsSimplyEditableNode(
|
|
*atStartOfSelection.GetContainer())) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
// If the active editing host is an inline element, or if the active editing
|
|
// host is the block parent itself and we're configured to use <br> as a
|
|
// paragraph separator, just append a <br>.
|
|
RefPtr<Element> editingHost = GetActiveEditingHost();
|
|
if (NS_WARN_IF(!editingHost)) {
|
|
return EditActionIgnored(NS_ERROR_FAILURE);
|
|
}
|
|
// If the editing host parent element is editable, it means that the editing
|
|
// host must be a <body> element and the selection may be outside the body
|
|
// element. If the selection is outside the editing host, we should not
|
|
// insert new paragraph nor <br> element.
|
|
// XXX Currently, we don't support editing outside <body> element, but Blink
|
|
// does it.
|
|
if (editingHost->GetParentElement() &&
|
|
HTMLEditUtils::IsSimplyEditableNode(*editingHost->GetParentElement()) &&
|
|
(!atStartOfSelection.IsInContentNode() ||
|
|
!nsContentUtils::ContentIsFlattenedTreeDescendantOf(
|
|
atStartOfSelection.ContainerAsContent(), editingHost))) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_NO_EDITABLE_RANGE);
|
|
}
|
|
|
|
// Look for the nearest parent block. However, don't return error even if
|
|
// there is no block parent here because in such case, i.e., editing host
|
|
// is an inline element, we should insert <br> simply.
|
|
RefPtr<Element> blockElement =
|
|
atStartOfSelection.IsInContentNode()
|
|
? HTMLEditUtils::GetInclusiveAncestorBlockElement(
|
|
*atStartOfSelection.ContainerAsContent(), editingHost)
|
|
: nullptr;
|
|
|
|
ParagraphSeparator separator = GetDefaultParagraphSeparator();
|
|
bool insertBRElement;
|
|
// If there is no block parent in the editing host, i.e., the editing host
|
|
// itself is also a non-block element, we should insert a <br> element.
|
|
if (!blockElement) {
|
|
// XXX Chromium checks if the CSS box of the editing host is a block.
|
|
insertBRElement = true;
|
|
}
|
|
// If only the editing host is block, and the default paragraph separator
|
|
// is <br> or the editing host cannot contain a <p> element, we should
|
|
// insert a <br> element.
|
|
else if (editingHost == blockElement) {
|
|
insertBRElement = separator == ParagraphSeparator::br ||
|
|
!HTMLEditUtils::CanElementContainParagraph(*editingHost);
|
|
}
|
|
// If the nearest block parent is a single-line container declared in
|
|
// the execCommand spec and not the editing host, we should separate the
|
|
// block even if the default paragraph separator is <br> element.
|
|
else if (HTMLEditUtils::IsSingleLineContainer(*blockElement)) {
|
|
insertBRElement = false;
|
|
}
|
|
// Otherwise, unless there is no block ancestor which can contain <p>
|
|
// element, we shouldn't insert a <br> element here.
|
|
else {
|
|
insertBRElement = true;
|
|
for (Element* blockAncestor = blockElement;
|
|
blockAncestor && insertBRElement;
|
|
blockAncestor = HTMLEditUtils::GetAncestorBlockElement(*blockAncestor,
|
|
editingHost)) {
|
|
insertBRElement =
|
|
!HTMLEditUtils::CanElementContainParagraph(*blockAncestor);
|
|
}
|
|
}
|
|
|
|
// If we cannot insert a <p>/<div> element at the selection, we should insert
|
|
// a <br> element instead.
|
|
if (insertBRElement) {
|
|
nsresult rv = InsertBRElement(atStartOfSelection);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::InsertBRElement() failed");
|
|
return EditActionIgnored(rv);
|
|
}
|
|
return EditActionHandled();
|
|
}
|
|
|
|
if (editingHost == blockElement && separator != ParagraphSeparator::br) {
|
|
// Insert a new block first
|
|
MOZ_ASSERT(separator == ParagraphSeparator::div ||
|
|
separator == ParagraphSeparator::p);
|
|
// FormatBlockContainerWithTransaction() creates AutoSelectionRestorer.
|
|
// Therefore, even if it returns NS_OK, editor might have been destroyed
|
|
// at restoring Selection.
|
|
nsresult rv = FormatBlockContainerWithTransaction(
|
|
MOZ_KnownLive(HTMLEditor::ToParagraphSeparatorTagName(separator)));
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED) ||
|
|
NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
// We warn on failure, but don't handle it, because it might be harmless.
|
|
// Instead we just check that a new block was actually created.
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::FormatBlockContainerWithTransaction() "
|
|
"failed, but ignored");
|
|
|
|
firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return EditActionIgnored(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
atStartOfSelection = firstRange->StartRef();
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return EditActionIgnored(NS_ERROR_FAILURE);
|
|
}
|
|
MOZ_ASSERT(atStartOfSelection.IsSetAndValid());
|
|
|
|
blockElement =
|
|
atStartOfSelection.IsInContentNode()
|
|
? HTMLEditUtils::GetInclusiveAncestorBlockElement(
|
|
*atStartOfSelection.ContainerAsContent(), editingHost)
|
|
: nullptr;
|
|
if (NS_WARN_IF(!blockElement)) {
|
|
return EditActionIgnored(NS_ERROR_UNEXPECTED);
|
|
}
|
|
if (NS_WARN_IF(blockElement == editingHost)) {
|
|
// Didn't create a new block for some reason, fall back to <br>
|
|
rv = InsertBRElement(atStartOfSelection);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::InsertBRElement() failed");
|
|
return EditActionIgnored(rv);
|
|
}
|
|
return EditActionHandled();
|
|
}
|
|
// Now, mNewBlockElement is last created block element for wrapping inline
|
|
// elements around the caret position and AfterEditInner() will move
|
|
// caret into it. However, it may be different from block parent of
|
|
// the caret position. E.g., FormatBlockContainerWithTransaction() may
|
|
// wrap following inline elements of a <br> element which is next sibling
|
|
// of container of the caret. So, we need to adjust mNewBlockElement here
|
|
// for avoiding jumping caret to odd position.
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = blockElement;
|
|
}
|
|
|
|
// If block is empty, populate with br. (For example, imagine a div that
|
|
// contains the word "text". The user selects "text" and types return.
|
|
// "Text" is deleted leaving an empty block. We want to put in one br to
|
|
// make block have a line. Then code further below will put in a second br.)
|
|
if (IsEmptyBlockElement(*blockElement, IgnoreSingleBR::No)) {
|
|
AutoEditorDOMPointChildInvalidator lockOffset(atStartOfSelection);
|
|
EditorDOMPoint endOfBlockParent;
|
|
endOfBlockParent.SetToEndOf(blockElement);
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(endOfBlockParent);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!brElement) {
|
|
NS_WARNING("HTMLEditor::InsertBRElementWithTransaction() failed");
|
|
return EditActionIgnored(NS_ERROR_FAILURE);
|
|
}
|
|
}
|
|
|
|
RefPtr<Element> listItem = GetNearestAncestorListItemElement(*blockElement);
|
|
if (listItem && listItem != editingHost) {
|
|
nsresult rv = HandleInsertParagraphInListItemElement(
|
|
*listItem, MOZ_KnownLive(*atStartOfSelection.GetContainer()),
|
|
atStartOfSelection.Offset());
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::HandleInsertParagraphInListItemElement() "
|
|
"failed, but ignored");
|
|
return EditActionHandled();
|
|
}
|
|
|
|
if (HTMLEditUtils::IsHeader(*blockElement)) {
|
|
// Headers: close (or split) header
|
|
nsresult rv = HandleInsertParagraphInHeadingElement(
|
|
*blockElement, MOZ_KnownLive(*atStartOfSelection.GetContainer()),
|
|
atStartOfSelection.Offset());
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::HandleInsertParagraphInHeadingElement() "
|
|
"failed, but ignored");
|
|
return EditActionHandled();
|
|
}
|
|
|
|
// XXX Ideally, we should take same behavior with both <p> container and
|
|
// <div> container. However, we are still using <br> as default
|
|
// paragraph separator (non-standard) and we've split only <p> container
|
|
// long time. Therefore, some web apps may depend on this behavior like
|
|
// Gmail. So, let's use traditional odd behavior only when the default
|
|
// paragraph separator is <br>. Otherwise, take consistent behavior
|
|
// between <p> container and <div> container.
|
|
if ((separator == ParagraphSeparator::br &&
|
|
blockElement->IsHTMLElement(nsGkAtoms::p)) ||
|
|
(separator != ParagraphSeparator::br &&
|
|
blockElement->IsAnyOfHTMLElements(nsGkAtoms::p, nsGkAtoms::div))) {
|
|
AutoEditorDOMPointChildInvalidator lockOffset(atStartOfSelection);
|
|
// Paragraphs: special rules to look for <br>s
|
|
EditActionResult result = HandleInsertParagraphInParagraph(*blockElement);
|
|
if (result.Failed()) {
|
|
NS_WARNING("HTMLEditor::HandleInsertParagraphInParagraph() failed");
|
|
return result;
|
|
}
|
|
if (result.Handled()) {
|
|
// Now, atStartOfSelection may be invalid because the left paragraph
|
|
// may have less children than its offset. For avoiding warnings of
|
|
// validation of EditorDOMPoint, we should not touch it anymore.
|
|
lockOffset.Cancel();
|
|
return result;
|
|
}
|
|
// Fall through, if HandleInsertParagraphInParagraph() didn't handle it.
|
|
MOZ_ASSERT(!result.Canceled(),
|
|
"HandleInsertParagraphInParagraph() canceled this edit action, "
|
|
"InsertParagraphSeparatorAsSubAction() needs to handle this "
|
|
"action instead");
|
|
}
|
|
|
|
// If nobody handles this edit action, let's insert new <br> at the selection.
|
|
rv = InsertBRElement(atStartOfSelection);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::InsertBRElement() failed");
|
|
return EditActionIgnored(rv);
|
|
}
|
|
return EditActionHandled();
|
|
}
|
|
|
|
nsresult HTMLEditor::InsertBRElement(const EditorDOMPoint& aPointToBreak) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (NS_WARN_IF(!aPointToBreak.IsSet())) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
bool brElementIsAfterBlock = false, brElementIsBeforeBlock = false;
|
|
|
|
// First, insert a <br> element.
|
|
RefPtr<Element> brElement;
|
|
if (IsPlaintextEditor()) {
|
|
brElement = InsertBRElementWithTransaction(aPointToBreak);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!brElement) {
|
|
NS_WARNING("HTMLEditor::InsertBRElementWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
} else {
|
|
EditorDOMPoint pointToBreak(aPointToBreak);
|
|
WSRunScanner wsRunScanner(*this, pointToBreak);
|
|
WSScanResult backwardScanResult =
|
|
wsRunScanner.ScanPreviousVisibleNodeOrBlockBoundaryFrom(pointToBreak);
|
|
if (backwardScanResult.Failed()) {
|
|
NS_WARNING(
|
|
"WSRunScanner::ScanPreviousVisibleNodeOrBlockBoundaryFrom() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
brElementIsAfterBlock = backwardScanResult.ReachedBlockBoundary();
|
|
WSScanResult forwardScanResult =
|
|
wsRunScanner.ScanNextVisibleNodeOrBlockBoundaryFrom(pointToBreak);
|
|
if (forwardScanResult.Failed()) {
|
|
NS_WARNING(
|
|
"WSRunScanner::ScanNextVisibleNodeOrBlockBoundaryFrom() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
brElementIsBeforeBlock = forwardScanResult.ReachedBlockBoundary();
|
|
// If the container of the break is a link, we need to split it and
|
|
// insert new <br> between the split links.
|
|
RefPtr<Element> linkNode =
|
|
HTMLEditor::GetLinkElement(pointToBreak.GetContainer());
|
|
if (linkNode) {
|
|
SplitNodeResult splitLinkNodeResult = SplitNodeDeepWithTransaction(
|
|
*linkNode, pointToBreak, SplitAtEdges::eDoNotCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (splitLinkNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitNodeDeepWithTransaction(SplitAtEdges::"
|
|
"eDoNotCreateEmptyContainer) failed");
|
|
return splitLinkNodeResult.Rv();
|
|
}
|
|
pointToBreak = splitLinkNodeResult.SplitPoint();
|
|
}
|
|
Result<RefPtr<Element>, nsresult> result =
|
|
WhiteSpaceVisibilityKeeper::InsertBRElement(*this, pointToBreak);
|
|
if (result.isErr()) {
|
|
NS_WARNING("WhiteSpaceVisibilityKeeper::InsertBRElement() failed");
|
|
return result.inspectErr();
|
|
}
|
|
brElement = result.unwrap();
|
|
MOZ_ASSERT(brElement);
|
|
}
|
|
|
|
// If the <br> element has already been removed from the DOM tree by a
|
|
// mutation event listener, don't continue handling this.
|
|
if (NS_WARN_IF(!brElement->GetParentNode())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (brElementIsAfterBlock && brElementIsBeforeBlock) {
|
|
// We just placed a <br> between block boundaries. This is the one case
|
|
// where we want the selection to be before the br we just placed, as the
|
|
// br will be on a new line, rather than at end of prior line.
|
|
// XXX brElementIsAfterBlock and brElementIsBeforeBlock were set before
|
|
// modifying the DOM tree. So, now, the <br> element may not be
|
|
// between blocks.
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->SetInterlinePosition(true, ignoredError);
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"Selection::SetInterlinePosition(true) failed, but ignored");
|
|
nsresult rv = CollapseSelectionTo(EditorRawDOMPoint(brElement));
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed");
|
|
return rv;
|
|
}
|
|
|
|
EditorDOMPoint afterBRElement(brElement);
|
|
DebugOnly<bool> advanced = afterBRElement.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset after the new <br> element");
|
|
WSScanResult forwardScanFromAfterBRElementResult =
|
|
WSRunScanner::ScanNextVisibleNodeOrBlockBoundary(*this, afterBRElement);
|
|
if (forwardScanFromAfterBRElementResult.Failed()) {
|
|
NS_WARNING("WSRunScanner::ScanNextVisibleNodeOrBlockBoundary() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (forwardScanFromAfterBRElementResult.ReachedBRElement()) {
|
|
// The next thing after the break we inserted is another break. Move the
|
|
// second break to be the first break's sibling. This will prevent them
|
|
// from being in different inline nodes, which would break
|
|
// SetInterlinePosition(). It will also assure that if the user clicks
|
|
// away and then clicks back on their new blank line, they will still get
|
|
// the style from the line above.
|
|
if (brElement->GetNextSibling() !=
|
|
forwardScanFromAfterBRElementResult.BRElementPtr()) {
|
|
MOZ_ASSERT(forwardScanFromAfterBRElementResult.BRElementPtr());
|
|
nsresult rv = MoveNodeWithTransaction(
|
|
MOZ_KnownLive(*forwardScanFromAfterBRElementResult.BRElementPtr()),
|
|
afterBRElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
|
|
// SetInterlinePosition(true) means we want the caret to stick to the
|
|
// content on the "right". We want the caret to stick to whatever is past
|
|
// the break. This is because the break is on the same line we were on,
|
|
// but the next content will be on the following line.
|
|
|
|
// An exception to this is if the break has a next sibling that is a block
|
|
// node. Then we stick to the left to avoid an uber caret.
|
|
nsIContent* nextSiblingOfBRElement = brElement->GetNextSibling();
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->SetInterlinePosition(
|
|
!(nextSiblingOfBRElement &&
|
|
HTMLEditUtils::IsBlockElement(*nextSiblingOfBRElement)),
|
|
ignoredError);
|
|
NS_WARNING_ASSERTION(!ignoredError.Failed(),
|
|
"Selection::SetInterlinePosition() failed, but ignored");
|
|
nsresult rv = CollapseSelectionTo(afterBRElement);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed");
|
|
return rv;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::SplitMailCiteElements(
|
|
const EditorDOMPoint& aPointToSplit) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aPointToSplit.IsSet());
|
|
|
|
RefPtr<Element> citeNode =
|
|
GetMostAncestorMailCiteElement(*aPointToSplit.GetContainer());
|
|
if (!citeNode) {
|
|
return EditActionIgnored();
|
|
}
|
|
|
|
EditorDOMPoint pointToSplit(aPointToSplit);
|
|
|
|
// If our selection is just before a break, nudge it to be just after it.
|
|
// This does two things for us. It saves us the trouble of having to add
|
|
// a break here ourselves to preserve the "blockness" of the inline span
|
|
// mailquote (in the inline case), and :
|
|
// it means the break won't end up making an empty line that happens to be
|
|
// inside a mailquote (in either inline or block case).
|
|
// The latter can confuse a user if they click there and start typing,
|
|
// because being in the mailquote may affect wrapping behavior, or font
|
|
// color, etc.
|
|
WSScanResult forwardScanFromPointToSplitResult =
|
|
WSRunScanner::ScanNextVisibleNodeOrBlockBoundary(*this, pointToSplit);
|
|
if (forwardScanFromPointToSplitResult.Failed()) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
// If selection start point is before a break and it's inside the mailquote,
|
|
// let's split it after the visible node.
|
|
if (forwardScanFromPointToSplitResult.ReachedBRElement() &&
|
|
forwardScanFromPointToSplitResult.BRElementPtr() != citeNode &&
|
|
citeNode->Contains(forwardScanFromPointToSplitResult.BRElementPtr())) {
|
|
pointToSplit = forwardScanFromPointToSplitResult.PointAfterContent();
|
|
}
|
|
|
|
if (NS_WARN_IF(!pointToSplit.GetContainerAsContent())) {
|
|
return EditActionIgnored(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
SplitNodeResult splitCiteNodeResult = SplitNodeDeepWithTransaction(
|
|
*citeNode, pointToSplit, SplitAtEdges::eDoNotCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (splitCiteNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitNodeDeepWithTransaction(SplitAtEdges::"
|
|
"eDoNotCreateEmptyContainer) failed");
|
|
return EditActionIgnored(splitCiteNodeResult.Rv());
|
|
}
|
|
pointToSplit.Clear();
|
|
|
|
// Add an invisible <br> to the end of current cite node (If new left cite
|
|
// has not been created, we're at the end of it. Otherwise, we're still at
|
|
// the right node) if it was a <span> of style="display: block". This is
|
|
// important, since when serializing the cite to plain text, the span which
|
|
// caused the visual break is discarded. So the added <br> will guarantee
|
|
// that the serializer will insert a break where the user saw one.
|
|
// FYI: splitCiteNodeResult grabs the previous node with nsCOMPtr. So, it's
|
|
// safe to access previousNodeOfSplitPoint even after changing the DOM
|
|
// tree and/or selection even though it's raw pointer.
|
|
nsIContent* previousNodeOfSplitPoint = splitCiteNodeResult.GetPreviousNode();
|
|
if (previousNodeOfSplitPoint &&
|
|
previousNodeOfSplitPoint->IsHTMLElement(nsGkAtoms::span) &&
|
|
previousNodeOfSplitPoint->GetPrimaryFrame() &&
|
|
previousNodeOfSplitPoint->GetPrimaryFrame()->IsBlockFrameOrSubclass()) {
|
|
nsCOMPtr<nsINode> lastChild = previousNodeOfSplitPoint->GetLastChild();
|
|
if (lastChild && !lastChild->IsHTMLElement(nsGkAtoms::br)) {
|
|
// We ignore the result here.
|
|
EditorDOMPoint endOfPreviousNodeOfSplitPoint;
|
|
endOfPreviousNodeOfSplitPoint.SetToEndOf(previousNodeOfSplitPoint);
|
|
RefPtr<Element> invisibleBRElement =
|
|
InsertBRElementWithTransaction(endOfPreviousNodeOfSplitPoint);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
invisibleBRElement,
|
|
"HTMLEditor::InsertBRElementWithTransaction() failed, but ignored");
|
|
}
|
|
}
|
|
|
|
// In most cases, <br> should be inserted after current cite. However, if
|
|
// left cite hasn't been created because the split point was start of the
|
|
// cite node, <br> should be inserted before the current cite.
|
|
EditorDOMPoint pointToInsertBRNode(splitCiteNodeResult.SplitPoint());
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(pointToInsertBRNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!brElement) {
|
|
NS_WARNING("HTMLEditor::InsertBRElementWithTransaction() failed");
|
|
return EditActionIgnored(NS_ERROR_FAILURE);
|
|
}
|
|
// Now, offset of pointToInsertBRNode is invalid. Let's clear it.
|
|
pointToInsertBRNode.Clear();
|
|
|
|
// Want selection before the break, and on same line.
|
|
EditorDOMPoint atBRElement(brElement);
|
|
{
|
|
AutoEditorDOMPointChildInvalidator lockOffset(atBRElement);
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->SetInterlinePosition(true, ignoredError);
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"Selection::SetInterlinePosition(true) failed, but ignored");
|
|
nsresult rv = CollapseSelectionTo(atBRElement);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::CollapseSelectionTo() failed");
|
|
return EditActionIgnored(rv);
|
|
}
|
|
}
|
|
|
|
// if citeNode wasn't a block, we might also want another break before it.
|
|
// We need to examine the content both before the br we just added and also
|
|
// just after it. If we don't have another br or block boundary adjacent,
|
|
// then we will need a 2nd br added to achieve blank line that user expects.
|
|
if (HTMLEditUtils::IsInlineElement(*citeNode)) {
|
|
// Use DOM point which we tried to collapse to.
|
|
EditorDOMPoint pointToCreateNewBRElement(atBRElement);
|
|
|
|
WSScanResult backwardScanFromPointToCreateNewBRElementResult =
|
|
WSRunScanner::ScanPreviousVisibleNodeOrBlockBoundary(
|
|
*this, pointToCreateNewBRElement);
|
|
if (backwardScanFromPointToCreateNewBRElementResult.Failed()) {
|
|
NS_WARNING(
|
|
"WSRunScanner::ScanPreviousVisibleNodeOrBlockBoundary() failed");
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
if (backwardScanFromPointToCreateNewBRElementResult
|
|
.InNormalWhiteSpacesOrText() ||
|
|
backwardScanFromPointToCreateNewBRElementResult
|
|
.ReachedSpecialContent()) {
|
|
EditorRawDOMPoint pointAfterNewBRElement(
|
|
EditorRawDOMPoint::After(pointToCreateNewBRElement));
|
|
NS_WARNING_ASSERTION(pointAfterNewBRElement.IsSet(),
|
|
"Failed to set to after the <br> node");
|
|
WSScanResult forwardScanFromPointAfterNewBRElementResult =
|
|
WSRunScanner::ScanNextVisibleNodeOrBlockBoundary(
|
|
*this, pointAfterNewBRElement);
|
|
if (forwardScanFromPointAfterNewBRElementResult.Failed()) {
|
|
NS_WARNING("WSRunScanner::ScanNextVisibleNodeOrBlockBoundary() failed");
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
if (forwardScanFromPointAfterNewBRElementResult
|
|
.InNormalWhiteSpacesOrText() ||
|
|
forwardScanFromPointAfterNewBRElementResult.ReachedSpecialContent() ||
|
|
// In case we're at the very end.
|
|
forwardScanFromPointAfterNewBRElementResult
|
|
.ReachedCurrentBlockBoundary()) {
|
|
brElement = InsertBRElementWithTransaction(pointToCreateNewBRElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!brElement) {
|
|
NS_WARNING("HTMLEditor::InsertBRElementWithTransaction() failed");
|
|
return EditActionIgnored(NS_ERROR_FAILURE);
|
|
}
|
|
// Now, those points may be invalid.
|
|
pointToCreateNewBRElement.Clear();
|
|
pointAfterNewBRElement.Clear();
|
|
}
|
|
}
|
|
}
|
|
|
|
// delete any empty cites
|
|
if (previousNodeOfSplitPoint &&
|
|
IsEmptyNode(*previousNodeOfSplitPoint, true, false)) {
|
|
nsresult rv =
|
|
DeleteNodeWithTransaction(MOZ_KnownLive(*previousNodeOfSplitPoint));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return EditActionIgnored(rv);
|
|
}
|
|
}
|
|
|
|
if (citeNode && IsEmptyNode(*citeNode, true, false)) {
|
|
nsresult rv = DeleteNodeWithTransaction(*citeNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return EditActionIgnored(rv);
|
|
}
|
|
}
|
|
|
|
return EditActionHandled();
|
|
}
|
|
|
|
HTMLEditor::CharPointData
|
|
HTMLEditor::GetPreviousCharPointDataForNormalizingWhiteSpaces(
|
|
const EditorDOMPointInText& aPoint) const {
|
|
MOZ_ASSERT(aPoint.IsSetAndValid());
|
|
|
|
if (!aPoint.IsStartOfContainer()) {
|
|
return CharPointData::InSameTextNode(
|
|
HTMLEditor::GetPreviousCharPointType(aPoint));
|
|
}
|
|
EditorDOMPointInText previousCharPoint =
|
|
WSRunScanner::GetPreviousEditableCharPoint(*this, aPoint);
|
|
if (!previousCharPoint.IsSet()) {
|
|
return CharPointData::InDifferentTextNode(CharPointType::TextEnd);
|
|
}
|
|
return CharPointData::InDifferentTextNode(
|
|
HTMLEditor::GetCharPointType(previousCharPoint));
|
|
}
|
|
|
|
HTMLEditor::CharPointData
|
|
HTMLEditor::GetInclusiveNextCharPointDataForNormalizingWhiteSpaces(
|
|
const EditorDOMPointInText& aPoint) const {
|
|
MOZ_ASSERT(aPoint.IsSetAndValid());
|
|
|
|
if (!aPoint.IsEndOfContainer()) {
|
|
return CharPointData::InSameTextNode(HTMLEditor::GetCharPointType(aPoint));
|
|
}
|
|
EditorDOMPointInText nextCharPoint =
|
|
WSRunScanner::GetInclusiveNextEditableCharPoint(*this, aPoint);
|
|
if (!nextCharPoint.IsSet()) {
|
|
return CharPointData::InDifferentTextNode(CharPointType::TextEnd);
|
|
}
|
|
return CharPointData::InDifferentTextNode(
|
|
HTMLEditor::GetCharPointType(nextCharPoint));
|
|
}
|
|
|
|
// static
|
|
void HTMLEditor::GenerateWhiteSpaceSequence(
|
|
nsAString& aResult, uint32_t aLength,
|
|
const CharPointData& aPreviousCharPointData,
|
|
const CharPointData& aNextCharPointData) {
|
|
MOZ_ASSERT(aResult.IsEmpty());
|
|
MOZ_ASSERT(aLength);
|
|
// For now, this method does not assume that result will be append to
|
|
// white-space sequence in the text node.
|
|
MOZ_ASSERT(aPreviousCharPointData.AcrossTextNodeBoundary() ||
|
|
!aPreviousCharPointData.IsWhiteSpace());
|
|
// For now, this method does not assume that the result will be inserted
|
|
// into white-space sequence nor start of white-space sequence.
|
|
MOZ_ASSERT(aNextCharPointData.AcrossTextNodeBoundary() ||
|
|
!aNextCharPointData.IsWhiteSpace());
|
|
|
|
if (aLength == 1) {
|
|
// Even if previous/next char is in different text node, we should put
|
|
// an ASCII white-space between visible characters.
|
|
// XXX This means that this does not allow to put an NBSP in HTML editor
|
|
// without preformatted style. However, Chrome has same issue too.
|
|
if (aPreviousCharPointData.Type() == CharPointType::VisibleChar &&
|
|
aNextCharPointData.Type() == CharPointType::VisibleChar) {
|
|
aResult.Assign(HTMLEditUtils::kSpace);
|
|
return;
|
|
}
|
|
// If it's start or end of text, put an NBSP.
|
|
if (aPreviousCharPointData.Type() == CharPointType::TextEnd ||
|
|
aNextCharPointData.Type() == CharPointType::TextEnd) {
|
|
aResult.Assign(HTMLEditUtils::kNBSP);
|
|
return;
|
|
}
|
|
// Now, the white-space will be inserted to a white-space sequence, but not
|
|
// end of text. We can put an ASCII white-space only when both sides are
|
|
// not ASCII white-spaces.
|
|
aResult.Assign(
|
|
aPreviousCharPointData.Type() == CharPointType::ASCIIWhiteSpace ||
|
|
aNextCharPointData.Type() == CharPointType::ASCIIWhiteSpace
|
|
? HTMLEditUtils::kNBSP
|
|
: HTMLEditUtils::kSpace);
|
|
return;
|
|
}
|
|
|
|
// Generate pairs of NBSP and ASCII white-space.
|
|
aResult.SetLength(aLength);
|
|
bool appendNBSP = true; // Basically, starts with an NBSP.
|
|
char16_t* lastChar = aResult.EndWriting() - 1;
|
|
for (char16_t* iter = aResult.BeginWriting(); iter != lastChar; iter++) {
|
|
*iter = appendNBSP ? HTMLEditUtils::kNBSP : HTMLEditUtils::kSpace;
|
|
appendNBSP = !appendNBSP;
|
|
}
|
|
|
|
// If the final one is expected to an NBSP, we can put an NBSP simply.
|
|
if (appendNBSP) {
|
|
*lastChar = HTMLEditUtils::kNBSP;
|
|
return;
|
|
}
|
|
|
|
// If next char point is end of text node or an ASCII white-space, we need to
|
|
// put an NBSP.
|
|
*lastChar =
|
|
aNextCharPointData.AcrossTextNodeBoundary() ||
|
|
aNextCharPointData.Type() == CharPointType::ASCIIWhiteSpace
|
|
? HTMLEditUtils::kNBSP
|
|
: HTMLEditUtils::kSpace;
|
|
}
|
|
|
|
void HTMLEditor::ExtendRangeToDeleteWithNormalizingWhiteSpaces(
|
|
EditorDOMPointInText& aStartToDelete, EditorDOMPointInText& aEndToDelete,
|
|
nsAString& aNormalizedWhiteSpacesInStartNode,
|
|
nsAString& aNormalizedWhiteSpacesInEndNode) const {
|
|
MOZ_ASSERT(aStartToDelete.IsSetAndValid());
|
|
MOZ_ASSERT(aEndToDelete.IsSetAndValid());
|
|
MOZ_ASSERT(aStartToDelete.EqualsOrIsBefore(aEndToDelete));
|
|
MOZ_ASSERT(aNormalizedWhiteSpacesInStartNode.IsEmpty());
|
|
MOZ_ASSERT(aNormalizedWhiteSpacesInEndNode.IsEmpty());
|
|
|
|
// First, check whether there is surrounding white-spaces or not, and if there
|
|
// are, check whether they are collapsible or not. Note that we shouldn't
|
|
// touch white-spaces in different text nodes for performance, but we need
|
|
// adjacent text node's first or last character information in some cases.
|
|
EditorDOMPointInText precedingCharPoint =
|
|
WSRunScanner::GetPreviousEditableCharPoint(*this, aStartToDelete);
|
|
EditorDOMPointInText followingCharPoint =
|
|
WSRunScanner::GetInclusiveNextEditableCharPoint(*this, aEndToDelete);
|
|
// Blink-compat: Normalize white-spaces in first node only when not removing
|
|
// its last character or no text nodes follow the first node.
|
|
// If removing last character of first node and there are
|
|
// following text nodes, white-spaces in following text node are
|
|
// normalized instead.
|
|
const bool removingLastCharOfStartNode =
|
|
aStartToDelete.ContainerAsText() != aEndToDelete.ContainerAsText() ||
|
|
(aEndToDelete.IsEndOfContainer() && followingCharPoint.IsSet());
|
|
const bool maybeNormalizePrecedingWhiteSpaces =
|
|
!removingLastCharOfStartNode && precedingCharPoint.IsSet() &&
|
|
!precedingCharPoint.IsEndOfContainer() &&
|
|
precedingCharPoint.ContainerAsText() ==
|
|
aStartToDelete.ContainerAsText() &&
|
|
precedingCharPoint.IsCharASCIISpaceOrNBSP() &&
|
|
!EditorUtils::IsContentPreformatted(
|
|
*precedingCharPoint.ContainerAsText());
|
|
const bool maybeNormalizeFollowingWhiteSpaces =
|
|
followingCharPoint.IsSet() && !followingCharPoint.IsEndOfContainer() &&
|
|
(followingCharPoint.ContainerAsText() == aEndToDelete.ContainerAsText() ||
|
|
removingLastCharOfStartNode) &&
|
|
followingCharPoint.IsCharASCIISpaceOrNBSP() &&
|
|
!EditorUtils::IsContentPreformatted(
|
|
*followingCharPoint.ContainerAsText());
|
|
|
|
if (!maybeNormalizePrecedingWhiteSpaces &&
|
|
!maybeNormalizeFollowingWhiteSpaces) {
|
|
return; // There are no white-spaces.
|
|
}
|
|
|
|
// Next, consider the range to normalize.
|
|
EditorDOMPointInText startToNormalize, endToNormalize;
|
|
if (maybeNormalizePrecedingWhiteSpaces) {
|
|
Maybe<uint32_t> previousCharOffsetOfWhiteSpaces =
|
|
HTMLEditUtils::GetPreviousCharOffsetExceptWhiteSpaces(
|
|
precedingCharPoint);
|
|
startToNormalize.Set(precedingCharPoint.ContainerAsText(),
|
|
previousCharOffsetOfWhiteSpaces.isSome()
|
|
? previousCharOffsetOfWhiteSpaces.value() + 1
|
|
: 0);
|
|
MOZ_ASSERT(!startToNormalize.IsEndOfContainer());
|
|
}
|
|
if (maybeNormalizeFollowingWhiteSpaces) {
|
|
Maybe<uint32_t> nextCharOffsetOfWhiteSpaces =
|
|
HTMLEditUtils::GetInclusiveNextCharOffsetExceptWhiteSpaces(
|
|
followingCharPoint);
|
|
if (nextCharOffsetOfWhiteSpaces.isSome()) {
|
|
endToNormalize.Set(followingCharPoint.ContainerAsText(),
|
|
nextCharOffsetOfWhiteSpaces.value());
|
|
} else {
|
|
endToNormalize.SetToEndOf(followingCharPoint.ContainerAsText());
|
|
}
|
|
MOZ_ASSERT(!endToNormalize.IsStartOfContainer());
|
|
}
|
|
|
|
// Next, retrieve surrounding information of white-space sequence.
|
|
// If we're removing first text node's last character, we need to
|
|
// normalize white-spaces starts from another text node. In this case,
|
|
// we need to lie for avoiding assertion in GenerateWhiteSpaceSequence().
|
|
CharPointData previousCharPointData =
|
|
removingLastCharOfStartNode
|
|
? CharPointData::InDifferentTextNode(CharPointType::TextEnd)
|
|
: GetPreviousCharPointDataForNormalizingWhiteSpaces(
|
|
startToNormalize.IsSet() ? startToNormalize : aStartToDelete);
|
|
CharPointData nextCharPointData =
|
|
GetInclusiveNextCharPointDataForNormalizingWhiteSpaces(
|
|
endToNormalize.IsSet() ? endToNormalize : aEndToDelete);
|
|
|
|
// Next, compute number of white-spaces in start/end node.
|
|
uint32_t lengthInStartNode = 0, lengthInEndNode = 0;
|
|
if (startToNormalize.IsSet()) {
|
|
MOZ_ASSERT(startToNormalize.ContainerAsText() ==
|
|
aStartToDelete.ContainerAsText());
|
|
lengthInStartNode = aStartToDelete.Offset() - startToNormalize.Offset();
|
|
MOZ_ASSERT(lengthInStartNode);
|
|
}
|
|
if (endToNormalize.IsSet()) {
|
|
lengthInEndNode =
|
|
endToNormalize.ContainerAsText() == aEndToDelete.ContainerAsText()
|
|
? endToNormalize.Offset() - aEndToDelete.Offset()
|
|
: endToNormalize.Offset();
|
|
MOZ_ASSERT(lengthInEndNode);
|
|
// If we normalize white-spaces in a text node, we can replace all of them
|
|
// with one ReplaceTextTransaction.
|
|
if (endToNormalize.ContainerAsText() == aStartToDelete.ContainerAsText()) {
|
|
lengthInStartNode += lengthInEndNode;
|
|
lengthInEndNode = 0;
|
|
}
|
|
}
|
|
|
|
MOZ_ASSERT(lengthInStartNode + lengthInEndNode);
|
|
|
|
// Next, generate normalized white-spaces.
|
|
if (!lengthInEndNode) {
|
|
HTMLEditor::GenerateWhiteSpaceSequence(
|
|
aNormalizedWhiteSpacesInStartNode, lengthInStartNode,
|
|
previousCharPointData, nextCharPointData);
|
|
} else if (!lengthInStartNode) {
|
|
HTMLEditor::GenerateWhiteSpaceSequence(
|
|
aNormalizedWhiteSpacesInEndNode, lengthInEndNode, previousCharPointData,
|
|
nextCharPointData);
|
|
} else {
|
|
// For making `GenerateWhiteSpaceSequence()` simpler, we should create
|
|
// whole white-space sequence first, then, copy to the out params.
|
|
nsAutoString whiteSpaces;
|
|
HTMLEditor::GenerateWhiteSpaceSequence(
|
|
whiteSpaces, lengthInStartNode + lengthInEndNode, previousCharPointData,
|
|
nextCharPointData);
|
|
aNormalizedWhiteSpacesInStartNode =
|
|
Substring(whiteSpaces, 0, lengthInStartNode);
|
|
aNormalizedWhiteSpacesInEndNode = Substring(whiteSpaces, lengthInStartNode);
|
|
MOZ_ASSERT(aNormalizedWhiteSpacesInEndNode.Length() == lengthInEndNode);
|
|
}
|
|
|
|
// TODO: Shrink the replacing range and string as far as possible because
|
|
// this may run a lot, i.e., HTMLEditor creates ReplaceTextTransaction
|
|
// a lot for normalizing white-spaces. Then, each transaction shouldn't
|
|
// have all white-spaces every time because once it's normalized, we
|
|
// don't need to normalize all of the sequence again, but currently
|
|
// we do.
|
|
|
|
// Finally, extend the range.
|
|
if (startToNormalize.IsSet()) {
|
|
aStartToDelete = startToNormalize;
|
|
}
|
|
if (endToNormalize.IsSet()) {
|
|
aEndToDelete = endToNormalize;
|
|
}
|
|
}
|
|
|
|
Result<EditorDOMPoint, nsresult>
|
|
HTMLEditor::DeleteTextAndNormalizeSurroundingWhiteSpaces(
|
|
const EditorDOMPointInText& aStartToDelete,
|
|
const EditorDOMPointInText& aEndToDelete,
|
|
TreatEmptyTextNodes aTreatEmptyTextNodes,
|
|
DeleteDirection aDeleteDirection) {
|
|
MOZ_ASSERT(aStartToDelete.IsSetAndValid());
|
|
MOZ_ASSERT(aEndToDelete.IsSetAndValid());
|
|
MOZ_ASSERT(aStartToDelete.EqualsOrIsBefore(aEndToDelete));
|
|
|
|
// Use nsString for these replacing string because we should avoid to copy
|
|
// the buffer from auto storange to ReplaceTextTransaction.
|
|
nsString normalizedWhiteSpacesInFirstNode, normalizedWhiteSpacesInLastNode;
|
|
|
|
// First, check whether we need to normalize white-spaces after deleting
|
|
// the given range.
|
|
EditorDOMPointInText startToDelete(aStartToDelete);
|
|
EditorDOMPointInText endToDelete(aEndToDelete);
|
|
ExtendRangeToDeleteWithNormalizingWhiteSpaces(
|
|
startToDelete, endToDelete, normalizedWhiteSpacesInFirstNode,
|
|
normalizedWhiteSpacesInLastNode);
|
|
|
|
// If extended range is still collapsed, i.e., the caller just wants to
|
|
// normalize white-space sequence, but there is no white-spaces which need to
|
|
// be replaced, we need to do nothing here.
|
|
if (startToDelete == endToDelete) {
|
|
return EditorDOMPoint(aStartToDelete);
|
|
}
|
|
|
|
// Note that the container text node of startToDelete may be removed from
|
|
// the tree if it becomes empty. Therefore, we need to track the point.
|
|
EditorDOMPoint newCaretPosition;
|
|
if (aStartToDelete.ContainerAsText() == aEndToDelete.ContainerAsText()) {
|
|
newCaretPosition = aEndToDelete;
|
|
} else if (aDeleteDirection == DeleteDirection::Forward) {
|
|
newCaretPosition.SetToEndOf(aStartToDelete.ContainerAsText());
|
|
} else {
|
|
newCaretPosition.Set(aEndToDelete.ContainerAsText(), 0);
|
|
}
|
|
|
|
// Then, modify the text nodes in the range.
|
|
while (true) {
|
|
AutoTrackDOMPoint trackingNewCaretPosition(RangeUpdaterRef(),
|
|
&newCaretPosition);
|
|
// Use ReplaceTextTransaction if we need to normalize white-spaces in
|
|
// the first text node.
|
|
if (!normalizedWhiteSpacesInFirstNode.IsEmpty()) {
|
|
EditorDOMPoint trackingEndToDelete(endToDelete.ContainerAsText(),
|
|
endToDelete.Offset());
|
|
{
|
|
AutoTrackDOMPoint trackEndToDelete(RangeUpdaterRef(),
|
|
&trackingEndToDelete);
|
|
uint32_t lengthToReplaceInFirstTextNode =
|
|
startToDelete.ContainerAsText() ==
|
|
trackingEndToDelete.ContainerAsText()
|
|
? trackingEndToDelete.Offset() - startToDelete.Offset()
|
|
: startToDelete.ContainerAsText()->TextLength() -
|
|
startToDelete.Offset();
|
|
nsresult rv = ReplaceTextWithTransaction(
|
|
MOZ_KnownLive(*startToDelete.ContainerAsText()),
|
|
startToDelete.Offset(), lengthToReplaceInFirstTextNode,
|
|
normalizedWhiteSpacesInFirstNode);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::ReplaceTextWithTransaction() failed");
|
|
return Err(rv);
|
|
}
|
|
if (startToDelete.ContainerAsText() ==
|
|
trackingEndToDelete.ContainerAsText()) {
|
|
MOZ_ASSERT(normalizedWhiteSpacesInLastNode.IsEmpty());
|
|
break; // There is no more text which we need to delete.
|
|
}
|
|
}
|
|
if (MayHaveMutationEventListeners(
|
|
NS_EVENT_BITS_MUTATION_CHARACTERDATAMODIFIED) &&
|
|
(NS_WARN_IF(!trackingEndToDelete.IsSetAndValid()) ||
|
|
NS_WARN_IF(!trackingEndToDelete.IsInTextNode()))) {
|
|
return Err(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
|
|
}
|
|
MOZ_ASSERT(trackingEndToDelete.IsInTextNode());
|
|
endToDelete.Set(trackingEndToDelete.ContainerAsText(),
|
|
trackingEndToDelete.Offset());
|
|
// If the remaining range was modified by mutation event listener,
|
|
// we should stop handling the deletion.
|
|
startToDelete =
|
|
EditorDOMPointInText::AtEndOf(*startToDelete.ContainerAsText());
|
|
if (MayHaveMutationEventListeners(
|
|
NS_EVENT_BITS_MUTATION_CHARACTERDATAMODIFIED) &&
|
|
NS_WARN_IF(!startToDelete.IsBefore(endToDelete))) {
|
|
return Err(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
|
|
}
|
|
}
|
|
// Delete ASCII whiteSpaces in the range simpley if there are some text
|
|
// nodes which we don't need to replace their text.
|
|
if (normalizedWhiteSpacesInLastNode.IsEmpty() ||
|
|
startToDelete.ContainerAsText() != endToDelete.ContainerAsText()) {
|
|
// If we need to replace text in the last text node, we should
|
|
// delete text before its previous text node.
|
|
EditorDOMPointInText endToDeleteExceptReplaceRange =
|
|
normalizedWhiteSpacesInLastNode.IsEmpty()
|
|
? endToDelete
|
|
: EditorDOMPointInText(endToDelete.ContainerAsText(), 0);
|
|
if (startToDelete != endToDeleteExceptReplaceRange) {
|
|
nsresult rv = DeleteTextAndTextNodesWithTransaction(
|
|
startToDelete, endToDeleteExceptReplaceRange, aTreatEmptyTextNodes);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::DeleteTextAndTextNodesWithTransaction() failed");
|
|
return Err(rv);
|
|
}
|
|
if (normalizedWhiteSpacesInLastNode.IsEmpty()) {
|
|
break; // There is no more text which we need to delete.
|
|
}
|
|
if (MayHaveMutationEventListeners(
|
|
NS_EVENT_BITS_MUTATION_CHARACTERDATAMODIFIED |
|
|
NS_EVENT_BITS_MUTATION_NODEREMOVED |
|
|
NS_EVENT_BITS_MUTATION_NODEREMOVEDFROMDOCUMENT |
|
|
NS_EVENT_BITS_MUTATION_SUBTREEMODIFIED) &&
|
|
(NS_WARN_IF(!endToDeleteExceptReplaceRange.IsSetAndValid()) ||
|
|
NS_WARN_IF(!endToDelete.IsSetAndValid()) ||
|
|
NS_WARN_IF(endToDelete.IsStartOfContainer()))) {
|
|
return Err(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
|
|
}
|
|
// Then, replace the text in the last text node.
|
|
startToDelete = endToDeleteExceptReplaceRange;
|
|
}
|
|
}
|
|
|
|
// Replace ASCII whiteSpaces in the range and following character in the
|
|
// last text node.
|
|
MOZ_ASSERT(!normalizedWhiteSpacesInLastNode.IsEmpty());
|
|
MOZ_ASSERT(startToDelete.ContainerAsText() ==
|
|
endToDelete.ContainerAsText());
|
|
nsresult rv = ReplaceTextWithTransaction(
|
|
MOZ_KnownLive(*startToDelete.ContainerAsText()), startToDelete.Offset(),
|
|
endToDelete.Offset() - startToDelete.Offset(),
|
|
normalizedWhiteSpacesInLastNode);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::ReplaceTextWithTransaction() failed");
|
|
return Err(rv);
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (!newCaretPosition.IsSetAndValid() ||
|
|
!newCaretPosition.GetContainer()->IsInComposedDoc()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::DeleteTextAndNormalizeSurroundingWhiteSpaces() got lost "
|
|
"the modifying line");
|
|
return Err(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
|
|
}
|
|
|
|
// Look for leaf node to put caret if we remove some empty inline ancestors
|
|
// at new caret position.
|
|
if (!newCaretPosition.IsInTextNode()) {
|
|
if (nsIContent* currentBlock = HTMLEditUtils::
|
|
GetInclusiveAncestorEditableBlockElementOrInlineEditingHost(
|
|
*newCaretPosition.ContainerAsContent())) {
|
|
Element* editingHost = GetActiveEditingHost();
|
|
// Try to put caret next to immediately after previous editable leaf.
|
|
nsIContent* previousContent =
|
|
HTMLEditUtils::GetPreviousLeafContentOrPreviousBlockElement(
|
|
newCaretPosition, *currentBlock,
|
|
{LeafNodeType::LeafNodeOrNonEditableNode}, editingHost);
|
|
if (previousContent && !HTMLEditUtils::IsBlockElement(*previousContent)) {
|
|
newCaretPosition =
|
|
previousContent->IsText() ||
|
|
HTMLEditUtils::IsContainerNode(*previousContent)
|
|
? EditorDOMPoint::AtEndOf(*previousContent)
|
|
: EditorDOMPoint::After(*previousContent);
|
|
}
|
|
// But if the point is very first of a block element or immediately after
|
|
// a child block, look for next editable leaf instead.
|
|
else if (nsIContent* nextContent =
|
|
HTMLEditUtils::GetNextLeafContentOrNextBlockElement(
|
|
newCaretPosition, *currentBlock,
|
|
{LeafNodeType::LeafNodeOrNonEditableNode},
|
|
editingHost)) {
|
|
newCaretPosition = nextContent->IsText() ||
|
|
HTMLEditUtils::IsContainerNode(*nextContent)
|
|
? EditorDOMPoint(nextContent, 0)
|
|
: EditorDOMPoint(nextContent);
|
|
}
|
|
}
|
|
}
|
|
|
|
// For compatibility with Blink, we should move caret to end of previous
|
|
// text node if it's direct previous sibling of the first text node in the
|
|
// range.
|
|
if (newCaretPosition.IsStartOfContainer() &&
|
|
newCaretPosition.IsInTextNode() &&
|
|
newCaretPosition.GetContainer()->GetPreviousSibling() &&
|
|
newCaretPosition.GetContainer()->GetPreviousSibling()->IsText()) {
|
|
newCaretPosition.SetToEndOf(
|
|
newCaretPosition.GetContainer()->GetPreviousSibling()->AsText());
|
|
}
|
|
|
|
{
|
|
AutoTrackDOMPoint trackingNewCaretPosition(RangeUpdaterRef(),
|
|
&newCaretPosition);
|
|
nsresult rv = InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
|
|
newCaretPosition);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::"
|
|
"InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary() failed");
|
|
return Err(rv);
|
|
}
|
|
}
|
|
if (!newCaretPosition.IsSetAndValid()) {
|
|
NS_WARNING("Inserting <br> element caused unexpected DOM tree");
|
|
return Err(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
|
|
}
|
|
return newCaretPosition;
|
|
}
|
|
|
|
nsresult HTMLEditor::InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
|
|
const EditorDOMPoint& aPointToInsert) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aPointToInsert.IsSet());
|
|
|
|
if (!aPointToInsert.GetContainerAsContent()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// If container of the point is not in a block, we don't need to put a
|
|
// `<br>` element here.
|
|
if (!HTMLEditUtils::IsBlockElement(*aPointToInsert.ContainerAsContent())) {
|
|
return NS_OK;
|
|
}
|
|
|
|
WSRunScanner wsRunScanner(*this, aPointToInsert);
|
|
// If the point is not start of a hard line, we don't need to put a `<br>`
|
|
// element here.
|
|
if (!wsRunScanner.StartsFromHardLineBreak()) {
|
|
return NS_OK;
|
|
}
|
|
// If the point is not end of a hard line or the hard line does not end with
|
|
// block boundary, we don't need to put a `<br>` element here.
|
|
if (!wsRunScanner.EndsByBlockBoundary()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// If we cannot insert a `<br>` element here, do nothing.
|
|
if (!HTMLEditUtils::CanNodeContain(*aPointToInsert.GetContainer(),
|
|
*nsGkAtoms::br)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(aPointToInsert, nsIEditor::ePrevious);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(brElement,
|
|
"HTMLEditor::InsertBRElementWithTransaction() failed");
|
|
return brElement ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorDOMPoint HTMLEditor::GetGoodCaretPointFor(
|
|
nsIContent& aContent, nsIEditor::EDirection aDirectionAndAmount) const {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aDirectionAndAmount == nsIEditor::eNext ||
|
|
aDirectionAndAmount == nsIEditor::eNextWord ||
|
|
aDirectionAndAmount == nsIEditor::ePrevious ||
|
|
aDirectionAndAmount == nsIEditor::ePreviousWord ||
|
|
aDirectionAndAmount == nsIEditor::eToBeginningOfLine ||
|
|
aDirectionAndAmount == nsIEditor::eToEndOfLine);
|
|
|
|
bool goingForward = (aDirectionAndAmount == nsIEditor::eNext ||
|
|
aDirectionAndAmount == nsIEditor::eNextWord ||
|
|
aDirectionAndAmount == nsIEditor::eToEndOfLine);
|
|
|
|
// XXX Why don't we check whether the candidate position is enable or not?
|
|
// When the result is not editable point, caret will be enclosed in
|
|
// the non-editable content.
|
|
|
|
// If we can put caret in aContent, return start or end in it.
|
|
if (aContent.IsText() || HTMLEditUtils::IsContainerNode(aContent) ||
|
|
NS_WARN_IF(!aContent.GetParentNode())) {
|
|
return EditorDOMPoint(&aContent, goingForward ? 0 : aContent.Length());
|
|
}
|
|
|
|
// If we are going forward, put caret at aContent itself.
|
|
if (goingForward) {
|
|
return EditorDOMPoint(&aContent);
|
|
}
|
|
|
|
// If we are going backward, put caret to next node unless aContent is an
|
|
// invisible `<br>` element.
|
|
// XXX Shouldn't we put caret to first leaf of the next node?
|
|
if (!aContent.IsHTMLElement(nsGkAtoms::br) || IsVisibleBRElement(&aContent)) {
|
|
EditorDOMPoint ret(EditorDOMPoint::After(aContent));
|
|
NS_WARNING_ASSERTION(ret.IsSet(), "Failed to set after aContent");
|
|
return ret;
|
|
}
|
|
|
|
// Otherwise, we should put caret at the invisible `<br>` element.
|
|
return EditorDOMPoint(&aContent);
|
|
}
|
|
|
|
EditActionResult HTMLEditor::MakeOrChangeListAndListItemAsSubAction(
|
|
nsAtom& aListElementOrListItemElementTagName, const nsAString& aBulletType,
|
|
SelectAllOfCurrentList aSelectAllOfCurrentList) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(&aListElementOrListItemElementTagName == nsGkAtoms::ul ||
|
|
&aListElementOrListItemElementTagName == nsGkAtoms::ol ||
|
|
&aListElementOrListItemElementTagName == nsGkAtoms::dl ||
|
|
&aListElementOrListItemElementTagName == nsGkAtoms::dd ||
|
|
&aListElementOrListItemElementTagName == nsGkAtoms::dt);
|
|
|
|
if (NS_WARN_IF(!mInitSucceeded)) {
|
|
return EditActionIgnored(NS_ERROR_NOT_INITIALIZED);
|
|
}
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (result.Failed() || result.Canceled()) {
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::CanHandleHTMLEditSubAction() failed");
|
|
return result;
|
|
}
|
|
|
|
if (IsSelectionRangeContainerNotContent()) {
|
|
NS_WARNING("Some selection containers are not content node, but ignored");
|
|
return EditActionIgnored();
|
|
}
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this,
|
|
ScrollSelectionIntoView::Yes);
|
|
|
|
// XXX EditSubAction::eCreateOrChangeDefinitionListItem and
|
|
// EditSubAction::eCreateOrChangeList are treated differently in
|
|
// HTMLEditor::MaybeSplitElementsAtEveryBRElement(). Only when
|
|
// EditSubAction::eCreateOrChangeList, it splits inline nodes.
|
|
// Currently, it shouldn't be done when we called for formatting
|
|
// `<dd>` or `<dt>` by
|
|
// HTMLEditor::MakeDefinitionListItemWithTransaction(). But this
|
|
// difference may be a bug. We should investigate this later.
|
|
IgnoredErrorResult ignoredError;
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this,
|
|
&aListElementOrListItemElementTagName == nsGkAtoms::dd ||
|
|
&aListElementOrListItemElementTagName == nsGkAtoms::dt
|
|
? EditSubAction::eCreateOrChangeDefinitionListItem
|
|
: EditSubAction::eCreateOrChangeList,
|
|
nsIEditor::eNext, ignoredError);
|
|
if (NS_WARN_IF(ignoredError.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED))) {
|
|
return EditActionResult(ignoredError.StealNSResult());
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"HTMLEditor::OnStartToHandleTopLevelEditSubAction() failed, but ignored");
|
|
|
|
nsresult rv = EnsureNoPaddingBRElementForEmptyEditor();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"EditorBase::EnsureNoPaddingBRElementForEmptyEditor() "
|
|
"failed, but ignored");
|
|
|
|
if (NS_SUCCEEDED(rv) && SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = EnsureCaretNotAfterPaddingBRElement();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::EnsureCaretNotAfterPaddingBRElement() "
|
|
"failed, but ignored");
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsresult rv = PrepareInlineStylesForCaret();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::PrepareInlineStylesForCaret() failed, but ignored");
|
|
}
|
|
}
|
|
|
|
nsAtom* listTagName = nullptr;
|
|
nsAtom* listItemTagName = nullptr;
|
|
if (&aListElementOrListItemElementTagName == nsGkAtoms::ul ||
|
|
&aListElementOrListItemElementTagName == nsGkAtoms::ol) {
|
|
listTagName = &aListElementOrListItemElementTagName;
|
|
listItemTagName = nsGkAtoms::li;
|
|
} else if (&aListElementOrListItemElementTagName == nsGkAtoms::dl) {
|
|
listTagName = &aListElementOrListItemElementTagName;
|
|
listItemTagName = nsGkAtoms::dd;
|
|
} else if (&aListElementOrListItemElementTagName == nsGkAtoms::dd ||
|
|
&aListElementOrListItemElementTagName == nsGkAtoms::dt) {
|
|
listTagName = nsGkAtoms::dl;
|
|
listItemTagName = &aListElementOrListItemElementTagName;
|
|
} else {
|
|
NS_WARNING(
|
|
"aListElementOrListItemElementTagName was neither list element name "
|
|
"nor "
|
|
"definition listitem element name");
|
|
return EditActionResult(NS_ERROR_INVALID_ARG);
|
|
}
|
|
|
|
// Expands selection range to include the immediate block parent, and then
|
|
// further expands to include any ancestors whose children are all in the
|
|
// range.
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeExtendSelectionToHardLineEdgesForBlockEditAction() "
|
|
"failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
}
|
|
|
|
// ChangeSelectedHardLinesToList() creates AutoSelectionRestorer.
|
|
// Therefore, even if it returns NS_OK, editor might have been destroyed
|
|
// at restoring Selection.
|
|
result = ChangeSelectedHardLinesToList(MOZ_KnownLive(*listTagName),
|
|
MOZ_KnownLive(*listItemTagName),
|
|
aBulletType, aSelectAllOfCurrentList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::ChangeSelectedHardLinesToList() failed");
|
|
return result;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::ChangeSelectedHardLinesToList(
|
|
nsAtom& aListElementTagName, nsAtom& aListItemElementTagName,
|
|
const nsAString& aBulletType,
|
|
SelectAllOfCurrentList aSelectAllOfCurrentList) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
MOZ_ASSERT(!IsSelectionRangeContainerNotContent());
|
|
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
|
|
AutoTArray<OwningNonNull<nsIContent>, 64> arrayOfContents;
|
|
Element* parentListElement =
|
|
aSelectAllOfCurrentList == SelectAllOfCurrentList::Yes
|
|
? GetParentListElementAtSelection()
|
|
: nullptr;
|
|
if (parentListElement) {
|
|
arrayOfContents.AppendElement(
|
|
OwningNonNull<nsIContent>(*parentListElement));
|
|
} else {
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
nsresult rv =
|
|
SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges(
|
|
arrayOfContents, EditSubAction::eCreateOrChangeList,
|
|
CollectNonEditableNodes::No);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::"
|
|
"SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges("
|
|
"eCreateOrChangeList, CollectNonEditableNodes::No) failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
}
|
|
|
|
// check if all our nodes are <br>s, or empty inlines
|
|
bool bOnlyBreaks = true;
|
|
for (auto& content : arrayOfContents) {
|
|
// if content is not a Break or empty inline, we're done
|
|
if (!content->IsHTMLElement(nsGkAtoms::br) && !IsEmptyInlineNode(content)) {
|
|
bOnlyBreaks = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// if no nodes, we make empty list. Ditto if the user tried to make a list
|
|
// of some # of breaks.
|
|
if (arrayOfContents.IsEmpty() || bOnlyBreaks) {
|
|
// if only breaks, delete them
|
|
if (bOnlyBreaks) {
|
|
for (auto& content : arrayOfContents) {
|
|
// MOZ_KnownLive because 'arrayOfContents' is guaranteed to
|
|
// keep it alive.
|
|
nsresult rv = DeleteNodeWithTransaction(MOZ_KnownLive(*content));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
}
|
|
}
|
|
|
|
const nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
EditorDOMPoint atStartOfSelection(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
// Make sure we can put a list here.
|
|
if (!HTMLEditUtils::CanNodeContain(*atStartOfSelection.GetContainer(),
|
|
aListElementTagName)) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
SplitNodeResult splitAtSelectionStartResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(aListElementTagName,
|
|
atStartOfSelection);
|
|
if (splitAtSelectionStartResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction() failed");
|
|
return EditActionResult(splitAtSelectionStartResult.Rv());
|
|
}
|
|
RefPtr<Element> theList = CreateNodeWithTransaction(
|
|
aListElementTagName, splitAtSelectionStartResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!theList) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction() failed");
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
RefPtr<Element> theListItem = CreateNodeWithTransaction(
|
|
aListItemElementTagName, EditorDOMPoint(theList, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!theListItem) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction() failed");
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
// remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = theListItem;
|
|
// Put selection in new list item and don't restore the Selection.
|
|
restoreSelectionLater.Abort();
|
|
nsresult rv = CollapseSelectionToStartOf(*theListItem);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
|
|
// if there is only one node in the array, and it is a list, div, or
|
|
// blockquote, then look inside of it until we find inner list or content.
|
|
if (arrayOfContents.Length() == 1) {
|
|
if (Element* deepestDivBlockquoteOrListElement =
|
|
GetDeepestEditableOnlyChildDivBlockquoteOrListElement(
|
|
arrayOfContents[0])) {
|
|
if (deepestDivBlockquoteOrListElement->IsAnyOfHTMLElements(
|
|
nsGkAtoms::div, nsGkAtoms::blockquote)) {
|
|
arrayOfContents.Clear();
|
|
CollectChildren(*deepestDivBlockquoteOrListElement, arrayOfContents, 0,
|
|
CollectListChildren::No, CollectTableChildren::No,
|
|
CollectNonEditableNodes::Yes);
|
|
} else {
|
|
arrayOfContents.ReplaceElementAt(
|
|
0, OwningNonNull<nsIContent>(*deepestDivBlockquoteOrListElement));
|
|
}
|
|
}
|
|
}
|
|
|
|
// Ok, now go through all the nodes and put then in the list,
|
|
// or whatever is approriate. Wohoo!
|
|
|
|
uint32_t countOfCollectedContents = arrayOfContents.Length();
|
|
RefPtr<Element> curList, prevListItem;
|
|
|
|
for (uint32_t i = 0; i < countOfCollectedContents; i++) {
|
|
// here's where we actually figure out what to do
|
|
OwningNonNull<nsIContent> content = arrayOfContents[i];
|
|
|
|
// make sure we don't assemble content that is in different table cells
|
|
// into the same list. respect table cell boundaries when listifying.
|
|
if (curList &&
|
|
HTMLEditor::NodesInDifferentTableElements(*curList, content)) {
|
|
curList = nullptr;
|
|
}
|
|
|
|
// If current node is a `<br>` element, delete it and forget previous
|
|
// list item element.
|
|
// If current node is an empty inline node, just delete it.
|
|
if (EditorUtils::IsEditableContent(content, EditorType::HTML) &&
|
|
(content->IsHTMLElement(nsGkAtoms::br) || IsEmptyInlineNode(content))) {
|
|
nsresult rv = DeleteNodeWithTransaction(*content);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
if (content->IsHTMLElement(nsGkAtoms::br)) {
|
|
prevListItem = nullptr;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsAnyListElement(content)) {
|
|
// If we met a list element and current list element is not a descendant
|
|
// of the list, append current node to end of the current list element.
|
|
// Then, wrap it with list item element and delete the old container.
|
|
if (curList && !EditorUtils::IsDescendantOf(*content, *curList)) {
|
|
nsresult rv = MoveNodeToEndWithTransaction(*content, *curList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
CreateElementResult convertListTypeResult =
|
|
ChangeListElementType(MOZ_KnownLive(*content->AsElement()),
|
|
aListElementTagName, aListItemElementTagName);
|
|
if (convertListTypeResult.Failed()) {
|
|
NS_WARNING("HTMLEditor::ChangeListElementType() failed");
|
|
return EditActionResult(convertListTypeResult.Rv());
|
|
}
|
|
rv = RemoveBlockContainerWithTransaction(
|
|
MOZ_KnownLive(*convertListTypeResult.GetNewNode()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::RemoveBlockContainerWithTransaction() failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
prevListItem = nullptr;
|
|
continue;
|
|
}
|
|
|
|
// If current list element is in found list element or we've not met a
|
|
// list element, convert current list element to proper type.
|
|
CreateElementResult convertListTypeResult =
|
|
ChangeListElementType(MOZ_KnownLive(*content->AsElement()),
|
|
aListElementTagName, aListItemElementTagName);
|
|
if (convertListTypeResult.Failed()) {
|
|
NS_WARNING("HTMLEditor::ChangeListElementType() failed");
|
|
return EditActionResult(convertListTypeResult.Rv());
|
|
}
|
|
curList = convertListTypeResult.forget();
|
|
prevListItem = nullptr;
|
|
continue;
|
|
}
|
|
|
|
EditorDOMPoint atContent(content);
|
|
if (NS_WARN_IF(!atContent.IsSet())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
MOZ_ASSERT(atContent.IsSetAndValid());
|
|
if (HTMLEditUtils::IsListItem(content)) {
|
|
// If current list item element is not in proper list element, we need
|
|
// to conver the list element.
|
|
if (!atContent.IsContainerHTMLElement(&aListElementTagName)) {
|
|
// If we've not met a list element or current node is not in current
|
|
// list element, insert a list element at current node and set
|
|
// current list element to the new one.
|
|
if (!curList || EditorUtils::IsDescendantOf(*content, *curList)) {
|
|
if (NS_WARN_IF(!atContent.GetContainerAsContent())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
ErrorResult error;
|
|
nsCOMPtr<nsIContent> newLeftNode =
|
|
SplitNodeWithTransaction(atContent, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (error.Failed()) {
|
|
NS_WARNING("HTMLEditor::SplitNodeWithTransaction() failed");
|
|
return EditActionResult(error.StealNSResult());
|
|
}
|
|
curList = CreateNodeWithTransaction(
|
|
aListElementTagName, EditorDOMPoint(atContent.GetContainer()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!curList) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction() failed");
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
}
|
|
// Then, move current node into current list element.
|
|
nsresult rv = MoveNodeToEndWithTransaction(*content, *curList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
// Convert list item type if current node is different list item type.
|
|
if (!content->IsHTMLElement(&aListItemElementTagName)) {
|
|
RefPtr<Element> newListItemElement = ReplaceContainerWithTransaction(
|
|
MOZ_KnownLive(*content->AsElement()), aListItemElementTagName);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!newListItemElement) {
|
|
NS_WARNING("HTMLEditor::ReplaceContainerWithTransaction() failed");
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
}
|
|
} else {
|
|
// If we've not met a list element, set current list element to the
|
|
// parent of current list item element.
|
|
if (!curList) {
|
|
curList = atContent.GetContainerAsElement();
|
|
NS_WARNING_ASSERTION(
|
|
HTMLEditUtils::IsAnyListElement(curList),
|
|
"Current list item parent is not a list element");
|
|
}
|
|
// If current list item element is not a child of current list element,
|
|
// move it into current list item.
|
|
else if (atContent.GetContainer() != curList) {
|
|
nsresult rv = MoveNodeToEndWithTransaction(*content, *curList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
}
|
|
// Then, if current list item element is not proper type for current
|
|
// list element, convert list item element to proper element.
|
|
if (!content->IsHTMLElement(&aListItemElementTagName)) {
|
|
RefPtr<Element> newListItemElement = ReplaceContainerWithTransaction(
|
|
MOZ_KnownLive(*content->AsElement()), aListItemElementTagName);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!newListItemElement) {
|
|
NS_WARNING("HTMLEditor::ReplaceContainerWithTransaction() failed");
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
}
|
|
}
|
|
Element* element = Element::FromNode(content);
|
|
if (NS_WARN_IF(!element)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
// If bullet type is specified, set list type attribute.
|
|
// XXX Cannot we set type attribute before inserting the list item
|
|
// element into the DOM tree?
|
|
if (!aBulletType.IsEmpty()) {
|
|
nsresult rv = SetAttributeWithTransaction(
|
|
MOZ_KnownLive(*element), *nsGkAtoms::type, aBulletType);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"EditorBase::SetAttributeWithTransaction(nsGkAtoms::type) "
|
|
"failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Otherwise, remove list type attribute if there is.
|
|
if (!element->HasAttr(nsGkAtoms::type)) {
|
|
continue;
|
|
}
|
|
nsresult rv = RemoveAttributeWithTransaction(MOZ_KnownLive(*element),
|
|
*nsGkAtoms::type);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"EditorBase::RemoveAttributeWithTransaction(nsGkAtoms::type) "
|
|
"failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
MOZ_ASSERT(!HTMLEditUtils::IsAnyListElement(content) &&
|
|
!HTMLEditUtils::IsListItem(content));
|
|
|
|
// If current node is a `<div>` element, replace it in the array with
|
|
// its children.
|
|
// XXX I think that this should be done when we collect the nodes above.
|
|
// Then, we can change this `for` loop to ranged-for loop.
|
|
if (content->IsHTMLElement(nsGkAtoms::div)) {
|
|
prevListItem = nullptr;
|
|
CollectChildren(*content, arrayOfContents, i + 1,
|
|
CollectListChildren::Yes, CollectTableChildren::Yes,
|
|
CollectNonEditableNodes::Yes);
|
|
nsresult rv =
|
|
RemoveContainerWithTransaction(MOZ_KnownLive(*content->AsElement()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveContainerWithTransaction() failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
// Extend the loop length to handle all children collected here.
|
|
countOfCollectedContents = arrayOfContents.Length();
|
|
continue;
|
|
}
|
|
|
|
// If we've not met a list element, create a list element and make it
|
|
// current list element.
|
|
if (!curList) {
|
|
SplitNodeResult splitCurNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(aListElementTagName,
|
|
atContent);
|
|
if (splitCurNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction() failed");
|
|
return EditActionResult(splitCurNodeResult.Rv());
|
|
}
|
|
prevListItem = nullptr;
|
|
curList = CreateNodeWithTransaction(aListElementTagName,
|
|
splitCurNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!curList) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction() failed");
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
// Set new block element of top level edit sub-action to the new list
|
|
// element for setting selection into it.
|
|
// XXX This must be wrong. If we're handling nested edit action,
|
|
// we shouldn't overwrite the new block element.
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = curList;
|
|
|
|
// atContent is now referring the right node with mOffset but
|
|
// referring the left node with mRef. So, invalidate it now.
|
|
atContent.Clear();
|
|
}
|
|
|
|
// If we're currently handling contents of a list item and current node
|
|
// is not a block element, move current node into the list item.
|
|
if (HTMLEditUtils::IsInlineElement(content) && prevListItem) {
|
|
nsresult rv = MoveNodeToEndWithTransaction(*content, *prevListItem);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// If current node is a paragraph, that means that it does not contain
|
|
// block children so that we can just replace it with new list item
|
|
// element and move it into current list element.
|
|
// XXX This is too rough handling. If web apps modifies DOM tree directly,
|
|
// any elements can have block elements as children.
|
|
if (content->IsHTMLElement(nsGkAtoms::p)) {
|
|
RefPtr<Element> newListItemElement = ReplaceContainerWithTransaction(
|
|
MOZ_KnownLive(*content->AsElement()), aListItemElementTagName);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!newListItemElement) {
|
|
NS_WARNING("HTMLEditor::ReplaceContainerWithTransaction() failed");
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
prevListItem = nullptr;
|
|
nsresult rv = MoveNodeToEndWithTransaction(*newListItemElement, *curList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
// XXX Why don't we set `type` attribute here??
|
|
continue;
|
|
}
|
|
|
|
// If current node is not a paragraph, wrap current node with new list
|
|
// item element and move it into current list element.
|
|
RefPtr<Element> newListItemElement =
|
|
InsertContainerWithTransaction(*content, aListItemElementTagName);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!newListItemElement) {
|
|
NS_WARNING("HTMLEditor::InsertContainerWithTransaction() failed");
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
// If current node is not a block element, new list item should have
|
|
// following inline nodes too.
|
|
if (HTMLEditUtils::IsInlineElement(content)) {
|
|
prevListItem = newListItemElement;
|
|
} else {
|
|
prevListItem = nullptr;
|
|
}
|
|
nsresult rv = MoveNodeToEndWithTransaction(*newListItemElement, *curList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
// XXX Why don't we set `type` attribute here??
|
|
}
|
|
|
|
return EditActionHandled();
|
|
}
|
|
|
|
nsresult HTMLEditor::RemoveListAtSelectionAsSubAction() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (result.Failed() || result.Canceled()) {
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::CanHandleHTMLEditSubAction() failed");
|
|
return result.Rv();
|
|
}
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this,
|
|
ScrollSelectionIntoView::Yes);
|
|
IgnoredErrorResult ignoredError;
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eRemoveList, nsIEditor::eNext, ignoredError);
|
|
if (NS_WARN_IF(ignoredError.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED))) {
|
|
return ignoredError.StealNSResult();
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"HTMLEditor::OnStartToHandleTopLevelEditSubAction() failed, but ignored");
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeExtendSelectionToHardLineEdgesForBlockEditAction() "
|
|
"failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
|
|
AutoTArray<OwningNonNull<nsIContent>, 64> arrayOfContents;
|
|
{
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
nsresult rv =
|
|
SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges(
|
|
arrayOfContents, EditSubAction::eCreateOrChangeList,
|
|
CollectNonEditableNodes::No);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::"
|
|
"SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges("
|
|
"eCreateOrChangeList, CollectNonEditableNodes::No) failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// Remove all non-editable nodes. Leave them be.
|
|
// XXX SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges()
|
|
// should return only editable contents when it's called with
|
|
// CollectNonEditableNodes::No.
|
|
for (int32_t i = arrayOfContents.Length() - 1; i >= 0; i--) {
|
|
OwningNonNull<nsIContent>& content = arrayOfContents[i];
|
|
if (!EditorUtils::IsEditableContent(content, EditorType::HTML)) {
|
|
arrayOfContents.RemoveElementAt(i);
|
|
}
|
|
}
|
|
|
|
// Only act on lists or list items in the array
|
|
for (auto& content : arrayOfContents) {
|
|
// here's where we actually figure out what to do
|
|
if (HTMLEditUtils::IsListItem(content)) {
|
|
// unlist this listitem
|
|
nsresult rv = LiftUpListItemElement(MOZ_KnownLive(*content->AsElement()),
|
|
LiftUpFromAllParentListElements::Yes);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::LiftUpListItemElement(LiftUpFromAllParentListElements:"
|
|
":Yes) failed");
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
if (HTMLEditUtils::IsAnyListElement(content)) {
|
|
// node is a list, move list items out
|
|
nsresult rv =
|
|
DestroyListStructureRecursively(MOZ_KnownLive(*content->AsElement()));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DestroyListStructureRecursively() failed");
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::FormatBlockContainerWithTransaction(nsAtom& blockType) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeExtendSelectionToHardLineEdgesForBlockEditAction() "
|
|
"failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
|
|
AutoTArray<OwningNonNull<nsIContent>, 64> arrayOfContents;
|
|
nsresult rv = SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges(
|
|
arrayOfContents, EditSubAction::eCreateOrRemoveBlock,
|
|
CollectNonEditableNodes::Yes);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::"
|
|
"SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges("
|
|
"eCreateOrRemoveBlock, CollectNonEditableNodes::Yes) failed");
|
|
return rv;
|
|
}
|
|
|
|
// If there is no visible and editable nodes in the edit targets, make an
|
|
// empty block.
|
|
// XXX Isn't this odd if there are only non-editable visible nodes?
|
|
if (IsEmptyOneHardLine(arrayOfContents)) {
|
|
const nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorDOMPoint pointToInsertBlock(firstRange->StartRef());
|
|
if (&blockType == nsGkAtoms::normal || &blockType == nsGkAtoms::_empty) {
|
|
if (!pointToInsertBlock.IsInContentNode()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::FormatBlockContainerWithTransaction() couldn't find "
|
|
"block parent because container of the point is not content");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// We are removing blocks (going to "body text")
|
|
RefPtr<Element> blockElement =
|
|
HTMLEditUtils::GetInclusiveAncestorBlockElement(
|
|
*pointToInsertBlock.ContainerAsContent());
|
|
if (!blockElement) {
|
|
NS_WARNING(
|
|
"HTMLEditor::FormatBlockContainerWithTransaction() couldn't find "
|
|
"block parent");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (!HTMLEditUtils::IsFormatNode(blockElement)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// If the first editable node after selection is a br, consume it.
|
|
// Otherwise it gets pushed into a following block after the split,
|
|
// which is visually bad.
|
|
nsCOMPtr<nsIContent> brContent =
|
|
GetNextEditableHTMLNode(pointToInsertBlock);
|
|
if (brContent && brContent->IsHTMLElement(nsGkAtoms::br)) {
|
|
AutoEditorDOMPointChildInvalidator lockOffset(pointToInsertBlock);
|
|
rv = DeleteNodeWithTransaction(*brContent);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
// Do the splits!
|
|
SplitNodeResult splitNodeResult = SplitNodeDeepWithTransaction(
|
|
*blockElement, pointToInsertBlock,
|
|
SplitAtEdges::eDoNotCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING("HTMLEditor::SplitNodeDeepWithTransaction() failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
EditorDOMPoint pointToInsertBRNode(splitNodeResult.SplitPoint());
|
|
// Put a <br> element at the split point
|
|
brContent = InsertBRElementWithTransaction(pointToInsertBRNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!brContent) {
|
|
NS_WARNING("HTMLEditor::InsertBRElementWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// Don't restore the selection
|
|
restoreSelectionLater.Abort();
|
|
// Put selection at the split point
|
|
nsresult rv = CollapseSelectionTo(EditorRawDOMPoint(brContent));
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed");
|
|
return rv;
|
|
}
|
|
|
|
// We are making a block. Consume a br, if needed.
|
|
nsCOMPtr<nsIContent> brNode =
|
|
GetNextEditableHTMLNodeInBlock(pointToInsertBlock);
|
|
if (brNode && brNode->IsHTMLElement(nsGkAtoms::br)) {
|
|
AutoEditorDOMPointChildInvalidator lockOffset(pointToInsertBlock);
|
|
rv = DeleteNodeWithTransaction(*brNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
// We don't need to act on this node any more
|
|
arrayOfContents.RemoveElement(brNode);
|
|
}
|
|
// Make sure we can put a block here.
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(blockType,
|
|
pointToInsertBlock);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction() failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
RefPtr<Element> block =
|
|
CreateNodeWithTransaction(blockType, splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!block) {
|
|
NS_WARNING("CreateNodeWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// Remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = block;
|
|
// Delete anything that was in the list of nodes
|
|
while (!arrayOfContents.IsEmpty()) {
|
|
OwningNonNull<nsIContent>& content = arrayOfContents[0];
|
|
// MOZ_KnownLive because 'arrayOfContents' is guaranteed to
|
|
// keep it alive.
|
|
rv = DeleteNodeWithTransaction(MOZ_KnownLive(*content));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
arrayOfContents.RemoveElementAt(0);
|
|
}
|
|
// Don't restore the selection
|
|
restoreSelectionLater.Abort();
|
|
// Put selection in new block
|
|
rv = CollapseSelectionToStartOf(*block);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed");
|
|
return rv;
|
|
}
|
|
// Okay, now go through all the nodes and make the right kind of blocks, or
|
|
// whatever is approriate. Woohoo! Note: blockquote is handled a little
|
|
// differently.
|
|
if (&blockType == nsGkAtoms::blockquote) {
|
|
nsresult rv = MoveNodesIntoNewBlockquoteElement(arrayOfContents);
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::MoveNodesIntoNewBlockquoteElement() failed");
|
|
return rv;
|
|
}
|
|
if (&blockType == nsGkAtoms::normal || &blockType == nsGkAtoms::_empty) {
|
|
nsresult rv = RemoveBlockContainerElements(arrayOfContents);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RemoveBlockContainerElements() failed");
|
|
return rv;
|
|
}
|
|
rv = CreateOrChangeBlockContainerElement(arrayOfContents, blockType);
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CreateOrChangeBlockContainerElement() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::MaybeInsertPaddingBRElementForEmptyLastLineAtSelection() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(!IsSelectionRangeContainerNotContent());
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
const nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
const RangeBoundary& atStartOfSelection = firstRange->StartRef();
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (!atStartOfSelection.Container()->IsElement()) {
|
|
return NS_OK;
|
|
}
|
|
OwningNonNull<Element> startContainerElement =
|
|
*atStartOfSelection.Container()->AsElement();
|
|
nsresult rv =
|
|
InsertPaddingBRElementForEmptyLastLineIfNeeded(startContainerElement);
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::InsertPaddingBRElementForEmptyLastLineIfNeeded() failed");
|
|
return rv;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::IndentAsSubAction() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this,
|
|
ScrollSelectionIntoView::Yes);
|
|
IgnoredErrorResult ignoredError;
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eIndent, nsIEditor::eNext, ignoredError);
|
|
if (NS_WARN_IF(ignoredError.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED))) {
|
|
return EditActionResult(ignoredError.StealNSResult());
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"HTMLEditor::OnStartToHandleTopLevelEditSubAction() failed, but ignored");
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (result.Failed() || result.Canceled()) {
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::CanHandleHTMLEditSubAction() failed");
|
|
return result;
|
|
}
|
|
|
|
if (IsSelectionRangeContainerNotContent()) {
|
|
NS_WARNING("Some selection containers are not content node, but ignored");
|
|
return EditActionIgnored();
|
|
}
|
|
|
|
result |= HandleIndentAtSelection();
|
|
if (result.Failed() || result.Canceled()) {
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::HandleIndentAtSelection() failed");
|
|
return result;
|
|
}
|
|
|
|
if (IsSelectionRangeContainerNotContent()) {
|
|
NS_WARNING("Mutation event listener might have changed selection");
|
|
return EditActionHandled(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
|
|
}
|
|
|
|
nsresult rv = MaybeInsertPaddingBRElementForEmptyLastLineAtSelection();
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"MaybeInsertPaddingBRElementForEmptyLastLineAtSelection() failed");
|
|
return result.SetResult(rv);
|
|
}
|
|
|
|
// Helper for Handle[CSS|HTML]IndentAtSelectionInternal
|
|
nsresult HTMLEditor::IndentListChild(RefPtr<Element>* aCurList,
|
|
const EditorDOMPoint& aCurPoint,
|
|
nsIContent& aContent) {
|
|
MOZ_ASSERT(HTMLEditUtils::IsAnyListElement(aCurPoint.GetContainer()),
|
|
"unexpected container");
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
// some logic for putting list items into nested lists...
|
|
|
|
// Check for whether we should join a list that follows aContent.
|
|
// We do this if the next element is a list, and the list is of the
|
|
// same type (li/ol) as aContent was a part it.
|
|
if (nsIContent* nextEditableSibling =
|
|
GetNextHTMLSibling(&aContent, SkipWhiteSpace::Yes)) {
|
|
if (HTMLEditUtils::IsAnyListElement(nextEditableSibling) &&
|
|
aCurPoint.GetContainer()->NodeInfo()->NameAtom() ==
|
|
nextEditableSibling->NodeInfo()->NameAtom() &&
|
|
aCurPoint.GetContainer()->NodeInfo()->NamespaceID() ==
|
|
nextEditableSibling->NodeInfo()->NamespaceID()) {
|
|
nsresult rv = MoveNodeWithTransaction(
|
|
aContent, EditorDOMPoint(nextEditableSibling, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"EdigtorBase::MoveNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// Check for whether we should join a list that preceeds aContent.
|
|
// We do this if the previous element is a list, and the list is of
|
|
// the same type (li/ol) as aContent was a part of.
|
|
if (nsCOMPtr<nsIContent> previousEditableSibling =
|
|
GetPriorHTMLSibling(&aContent, SkipWhiteSpace::Yes)) {
|
|
if (HTMLEditUtils::IsAnyListElement(previousEditableSibling) &&
|
|
aCurPoint.GetContainer()->NodeInfo()->NameAtom() ==
|
|
previousEditableSibling->NodeInfo()->NameAtom() &&
|
|
aCurPoint.GetContainer()->NodeInfo()->NamespaceID() ==
|
|
previousEditableSibling->NodeInfo()->NamespaceID()) {
|
|
nsresult rv =
|
|
MoveNodeToEndWithTransaction(aContent, *previousEditableSibling);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// check to see if aCurList is still appropriate. Which it is if
|
|
// aContent is still right after it in the same list.
|
|
nsIContent* previousEditableSibling =
|
|
*aCurList ? GetPriorHTMLSibling(&aContent, SkipWhiteSpace::Yes) : nullptr;
|
|
if (!*aCurList ||
|
|
(previousEditableSibling && previousEditableSibling != *aCurList)) {
|
|
nsAtom* containerName = aCurPoint.GetContainer()->NodeInfo()->NameAtom();
|
|
// Create a new nested list of correct type.
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(
|
|
MOZ_KnownLive(*containerName), aCurPoint);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction() failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
*aCurList = CreateNodeWithTransaction(MOZ_KnownLive(*containerName),
|
|
splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!*aCurList) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// aCurList is now the correct thing to put aContent in
|
|
// remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = *aCurList;
|
|
}
|
|
// tuck the node into the end of the active list
|
|
RefPtr<nsINode> container = *aCurList;
|
|
nsresult rv = MoveNodeToEndWithTransaction(aContent, *container);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleIndentAtSelection() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(!IsSelectionRangeContainerNotContent());
|
|
|
|
nsresult rv = EnsureNoPaddingBRElementForEmptyEditor();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"EditorBase::EnsureNoPaddingBRElementForEmptyEditor() "
|
|
"failed, but ignored");
|
|
|
|
if (NS_SUCCEEDED(rv) && SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = EnsureCaretNotAfterPaddingBRElement();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::EnsureCaretNotAfterPaddingBRElement() "
|
|
"failed, but ignored");
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsresult rv = PrepareInlineStylesForCaret();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::PrepareInlineStylesForCaret() failed, but ignored");
|
|
}
|
|
}
|
|
|
|
if (IsSelectionRangeContainerNotContent()) {
|
|
NS_WARNING("Mutation event listener might have changed the selection");
|
|
return EditActionHandled(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
|
|
}
|
|
|
|
if (IsCSSEnabled()) {
|
|
nsresult rv = HandleCSSIndentAtSelection();
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::HandleCSSIndentAtSelection() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
rv = HandleHTMLIndentAtSelection();
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::HandleHTMLIndent() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
nsresult HTMLEditor::HandleCSSIndentAtSelection() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(!IsSelectionRangeContainerNotContent());
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeExtendSelectionToHardLineEdgesForBlockEditAction() "
|
|
"failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// HandleCSSIndentAtSelectionInternal() creates AutoSelectionRestorer.
|
|
// Therefore, even if it returns NS_OK, editor might have been destroyed
|
|
// at restoring Selection.
|
|
nsresult rv = HandleCSSIndentAtSelectionInternal();
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::HandleCSSIndentAtSelectionInternal() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::HandleCSSIndentAtSelectionInternal() {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
MOZ_ASSERT(!IsSelectionRangeContainerNotContent());
|
|
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
AutoTArray<OwningNonNull<nsIContent>, 64> arrayOfContents;
|
|
|
|
// short circuit: detect case of collapsed selection inside an <li>.
|
|
// just sublist that <li>. This prevents bug 97797.
|
|
|
|
if (SelectionRefPtr()->IsCollapsed()) {
|
|
EditorRawDOMPoint atCaret(EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
if (NS_WARN_IF(!atCaret.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
MOZ_ASSERT(atCaret.IsInContentNode());
|
|
Element* blockElement = HTMLEditUtils::GetInclusiveAncestorBlockElement(
|
|
*atCaret.ContainerAsContent());
|
|
if (blockElement && HTMLEditUtils::IsListItem(blockElement)) {
|
|
arrayOfContents.AppendElement(*blockElement);
|
|
}
|
|
}
|
|
|
|
if (arrayOfContents.IsEmpty()) {
|
|
nsresult rv =
|
|
SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges(
|
|
arrayOfContents, EditSubAction::eIndent,
|
|
CollectNonEditableNodes::Yes);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::"
|
|
"SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges("
|
|
"eIndent, CollectNonEditableNodes::Yes) failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// If there is no visible and editable nodes in the edit targets, make an
|
|
// empty block.
|
|
// XXX Isn't this odd if there are only non-editable visible nodes?
|
|
if (IsEmptyOneHardLine(arrayOfContents)) {
|
|
// get selection location
|
|
const nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorDOMPoint atStartOfSelection(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// make sure we can put a block here
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(*nsGkAtoms::div,
|
|
atStartOfSelection);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction(nsGkAtoms::"
|
|
"div) failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
RefPtr<Element> theBlock = CreateNodeWithTransaction(
|
|
*nsGkAtoms::div, splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!theBlock) {
|
|
NS_WARNING(
|
|
"EditorBase::CreateNodeWithTransaction(nsGkAtoms::div) failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = theBlock;
|
|
nsresult rv = ChangeMarginStart(*theBlock, ChangeMargin::Increase);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::ChangeMarginStart() failed, but ignored");
|
|
// delete anything that was in the list of nodes
|
|
// XXX We don't need to remove the nodes from the array for performance.
|
|
while (!arrayOfContents.IsEmpty()) {
|
|
OwningNonNull<nsIContent>& content = arrayOfContents[0];
|
|
// MOZ_KnownLive because 'arrayOfContents' is guaranteed to
|
|
// keep it alive.
|
|
rv = DeleteNodeWithTransaction(MOZ_KnownLive(*content));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
arrayOfContents.RemoveElementAt(0);
|
|
}
|
|
// Don't restore the selection
|
|
restoreSelectionLater.Abort();
|
|
// put selection in new block
|
|
rv = CollapseSelectionToStartOf(*theBlock);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed");
|
|
return rv;
|
|
}
|
|
|
|
// Ok, now go through all the nodes and put them in a blockquote,
|
|
// or whatever is appropriate.
|
|
RefPtr<Element> curList, curQuote;
|
|
for (OwningNonNull<nsIContent>& content : arrayOfContents) {
|
|
// Here's where we actually figure out what to do.
|
|
EditorDOMPoint atContent(content);
|
|
if (NS_WARN_IF(!atContent.IsSet())) {
|
|
continue;
|
|
}
|
|
|
|
// Ignore all non-editable nodes. Leave them be.
|
|
// XXX We ignore non-editable nodes here, but not so in the above block.
|
|
if (!EditorUtils::IsEditableContent(content, EditorType::HTML)) {
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsAnyListElement(atContent.GetContainer())) {
|
|
// MOZ_KnownLive because 'arrayOfContents' is guaranteed to
|
|
// keep it alive.
|
|
nsresult rv =
|
|
IndentListChild(&curList, atContent, MOZ_KnownLive(content));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::IndentListChild() failed");
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Not a list item.
|
|
|
|
if (HTMLEditUtils::IsBlockElement(content)) {
|
|
nsresult rv = ChangeMarginStart(MOZ_KnownLive(*content->AsElement()),
|
|
ChangeMargin::Increase);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::ChangeMarginStart() failed, but ignored");
|
|
curQuote = nullptr;
|
|
continue;
|
|
}
|
|
|
|
if (!curQuote) {
|
|
// First, check that our element can contain a div.
|
|
if (!HTMLEditUtils::CanNodeContain(*atContent.GetContainer(),
|
|
*nsGkAtoms::div)) {
|
|
return NS_OK; // cancelled
|
|
}
|
|
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(*nsGkAtoms::div,
|
|
atContent);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction(nsGkAtoms:"
|
|
":div) failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
curQuote = CreateNodeWithTransaction(*nsGkAtoms::div,
|
|
splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!curQuote) {
|
|
NS_WARNING(
|
|
"EditorBase::CreateNodeWithTransaction(nsGkAtoms::div) failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsresult rv = ChangeMarginStart(*curQuote, ChangeMargin::Increase);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::ChangeMarginStart() failed, but ignored");
|
|
// remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = curQuote;
|
|
// curQuote is now the correct thing to put content in
|
|
}
|
|
|
|
// tuck the node into the end of the active blockquote
|
|
// MOZ_KnownLive because 'arrayOfContents' is guaranteed to
|
|
// keep it alive.
|
|
nsresult rv =
|
|
MoveNodeToEndWithTransaction(MOZ_KnownLive(content), *curQuote);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::HandleHTMLIndentAtSelection() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(!IsSelectionRangeContainerNotContent());
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeExtendSelectionToHardLineEdgesForBlockEditAction() "
|
|
"failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// HandleHTMLIndentAtSelectionInternal() creates AutoSelectionRestorer.
|
|
// Therefore, even if it returns NS_OK, editor might have been destroyed
|
|
// at restoring Selection.
|
|
nsresult rv = HandleHTMLIndentAtSelectionInternal();
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::HandleHTMLIndentAtSelectionInternal() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::HandleHTMLIndentAtSelectionInternal() {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
|
|
// convert the selection ranges into "promoted" selection ranges:
|
|
// this basically just expands the range to include the immediate
|
|
// block parent, and then further expands to include any ancestors
|
|
// whose children are all in the range
|
|
|
|
AutoTArray<RefPtr<nsRange>, 4> arrayOfRanges;
|
|
GetSelectionRangesExtendedToHardLineStartAndEnd(arrayOfRanges,
|
|
EditSubAction::eIndent);
|
|
|
|
// use these ranges to construct a list of nodes to act on.
|
|
AutoTArray<OwningNonNull<nsIContent>, 64> arrayOfContents;
|
|
nsresult rv = SplitInlinesAndCollectEditTargetNodes(
|
|
arrayOfRanges, arrayOfContents, EditSubAction::eIndent,
|
|
CollectNonEditableNodes::Yes);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitInlinesAndCollectEditTargetNodes(eIndent, "
|
|
"CollectNonEditableNodes::Yes) failed");
|
|
return rv;
|
|
}
|
|
|
|
// If there is no visible and editable nodes in the edit targets, make an
|
|
// empty block.
|
|
// XXX Isn't this odd if there are only non-editable visible nodes?
|
|
if (IsEmptyOneHardLine(arrayOfContents)) {
|
|
const nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorDOMPoint atStartOfSelection(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Make sure we can put a block here.
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(*nsGkAtoms::blockquote,
|
|
atStartOfSelection);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction(nsGkAtoms::"
|
|
"blockquote) failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
RefPtr<Element> theBlock = CreateNodeWithTransaction(
|
|
*nsGkAtoms::blockquote, splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!theBlock) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = theBlock;
|
|
// delete anything that was in the list of nodes
|
|
// XXX We don't need to remove the nodes from the array for performance.
|
|
while (!arrayOfContents.IsEmpty()) {
|
|
OwningNonNull<nsIContent>& content = arrayOfContents[0];
|
|
// MOZ_KnownLive because 'arrayOfContents' is guaranteed to
|
|
// keep it alive.
|
|
rv = DeleteNodeWithTransaction(MOZ_KnownLive(*content));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
arrayOfContents.RemoveElementAt(0);
|
|
}
|
|
// Don't restore the selection
|
|
restoreSelectionLater.Abort();
|
|
nsresult rv = CollapseSelectionToStartOf(*theBlock);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed");
|
|
return rv;
|
|
}
|
|
|
|
// Ok, now go through all the nodes and put them in a blockquote,
|
|
// or whatever is appropriate. Wohoo!
|
|
RefPtr<Element> curList, curQuote, indentedLI;
|
|
for (OwningNonNull<nsIContent>& content : arrayOfContents) {
|
|
// Here's where we actually figure out what to do.
|
|
EditorDOMPoint atContent(content);
|
|
if (NS_WARN_IF(!atContent.IsSet())) {
|
|
continue;
|
|
}
|
|
|
|
// Ignore all non-editable nodes. Leave them be.
|
|
// XXX We ignore non-editable nodes here, but not so in the above block.
|
|
if (!EditorUtils::IsEditableContent(content, EditorType::HTML)) {
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsAnyListElement(atContent.GetContainer())) {
|
|
// MOZ_KnownLive because 'arrayOfContents' is guaranteed to
|
|
// keep it alive.
|
|
nsresult rv =
|
|
IndentListChild(&curList, atContent, MOZ_KnownLive(content));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::IndentListChild() failed");
|
|
return rv;
|
|
}
|
|
// forget curQuote, if any
|
|
curQuote = nullptr;
|
|
continue;
|
|
}
|
|
|
|
// Not a list item, use blockquote?
|
|
|
|
// if we are inside a list item, we don't want to blockquote, we want
|
|
// to sublist the list item. We may have several nodes listed in the
|
|
// array of nodes to act on, that are in the same list item. Since
|
|
// we only want to indent that li once, we must keep track of the most
|
|
// recent indented list item, and not indent it if we find another node
|
|
// to act on that is still inside the same li.
|
|
if (RefPtr<Element> listItem = GetNearestAncestorListItemElement(content)) {
|
|
if (indentedLI == listItem) {
|
|
// already indented this list item
|
|
continue;
|
|
}
|
|
// check to see if curList is still appropriate. Which it is if
|
|
// content is still right after it in the same list.
|
|
nsIContent* previousEditableSibling =
|
|
curList ? GetPriorHTMLSibling(listItem) : nullptr;
|
|
if (!curList ||
|
|
(previousEditableSibling && previousEditableSibling != curList)) {
|
|
EditorDOMPoint atListItem(listItem);
|
|
if (NS_WARN_IF(!listItem)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsAtom* containerName =
|
|
atListItem.GetContainer()->NodeInfo()->NameAtom();
|
|
// Create a new nested list of correct type.
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(
|
|
MOZ_KnownLive(*containerName), atListItem);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction() "
|
|
"failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
curList = CreateNodeWithTransaction(MOZ_KnownLive(*containerName),
|
|
splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!curList) {
|
|
NS_WARNING("HTMLEditor::CreateNodeWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
rv = MoveNodeToEndWithTransaction(*listItem, *curList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
// remember we indented this li
|
|
indentedLI = listItem;
|
|
|
|
continue;
|
|
}
|
|
|
|
// need to make a blockquote to put things in if we haven't already,
|
|
// or if this node doesn't go in blockquote we used earlier.
|
|
// One reason it might not go in prio blockquote is if we are now
|
|
// in a different table cell.
|
|
if (curQuote &&
|
|
HTMLEditor::NodesInDifferentTableElements(*curQuote, content)) {
|
|
curQuote = nullptr;
|
|
}
|
|
|
|
if (!curQuote) {
|
|
// First, check that our element can contain a blockquote.
|
|
if (!HTMLEditUtils::CanNodeContain(*atContent.GetContainer(),
|
|
*nsGkAtoms::blockquote)) {
|
|
return NS_OK; // cancelled
|
|
}
|
|
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(*nsGkAtoms::blockquote,
|
|
atContent);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction(nsGkAtoms:"
|
|
":blockquote) failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
curQuote = CreateNodeWithTransaction(*nsGkAtoms::blockquote,
|
|
splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!curQuote) {
|
|
NS_WARNING(
|
|
"EditorBase::CreateNodeWithTransaction(nsGkAtoms::blockquote) "
|
|
"failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = curQuote;
|
|
// curQuote is now the correct thing to put curNode in
|
|
}
|
|
|
|
// tuck the node into the end of the active blockquote
|
|
// MOZ_KnownLive because 'arrayOfContents' is guaranteed to
|
|
// keep it alive.
|
|
rv = MoveNodeToEndWithTransaction(MOZ_KnownLive(content), *curQuote);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
// forget curList, if any
|
|
curList = nullptr;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::OutdentAsSubAction() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this,
|
|
ScrollSelectionIntoView::Yes);
|
|
IgnoredErrorResult ignoredError;
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eOutdent, nsIEditor::eNext, ignoredError);
|
|
if (NS_WARN_IF(ignoredError.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED))) {
|
|
return EditActionResult(ignoredError.StealNSResult());
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"HTMLEditor::OnStartToHandleTopLevelEditSubAction() failed, but ignored");
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (result.Failed() || result.Canceled()) {
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::CanHandleHTMLEditSubAction() failed");
|
|
return result;
|
|
}
|
|
|
|
if (IsSelectionRangeContainerNotContent()) {
|
|
NS_WARNING("Some selection containers are not content node, but ignored");
|
|
return EditActionIgnored();
|
|
}
|
|
|
|
result |= HandleOutdentAtSelection();
|
|
if (result.Failed() || result.Canceled()) {
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::HandleOutdentAtSelection() failed");
|
|
return result;
|
|
}
|
|
|
|
if (IsSelectionRangeContainerNotContent()) {
|
|
NS_WARNING("Mutation event listener might have changed the selection");
|
|
return EditActionHandled(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
|
|
}
|
|
|
|
nsresult rv = MaybeInsertPaddingBRElementForEmptyLastLineAtSelection();
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::MaybeInsertPaddingBRElementForEmptyLastLineAtSelection() "
|
|
"failed");
|
|
return result.SetResult(rv);
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleOutdentAtSelection() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(!IsSelectionRangeContainerNotContent());
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
}
|
|
|
|
// HandleOutdentAtSelectionInternal() creates AutoSelectionRestorer.
|
|
// Therefore, even if it returns NS_OK, the editor might have been destroyed
|
|
// at restoring Selection.
|
|
SplitRangeOffFromNodeResult outdentResult =
|
|
HandleOutdentAtSelectionInternal();
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (outdentResult.Failed()) {
|
|
NS_WARNING("HTMLEditor::HandleOutdentAtSelectionInternal() failed");
|
|
return EditActionHandled(outdentResult.Rv());
|
|
}
|
|
|
|
// Make sure selection didn't stick to last piece of content in old bq (only
|
|
// a problem for collapsed selections)
|
|
if (!outdentResult.GetLeftContent() && !outdentResult.GetRightContent()) {
|
|
return EditActionHandled();
|
|
}
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
return EditActionHandled();
|
|
}
|
|
|
|
// Push selection past end of left element of last split indented element.
|
|
if (outdentResult.GetLeftContent()) {
|
|
const nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return EditActionHandled();
|
|
}
|
|
const RangeBoundary& atStartOfSelection = firstRange->StartRef();
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
if (atStartOfSelection.Container() == outdentResult.GetLeftContent() ||
|
|
EditorUtils::IsDescendantOf(*atStartOfSelection.Container(),
|
|
*outdentResult.GetLeftContent())) {
|
|
// Selection is inside the left node - push it past it.
|
|
EditorRawDOMPoint afterRememberedLeftBQ(
|
|
EditorRawDOMPoint::After(*outdentResult.GetLeftContent()));
|
|
NS_WARNING_ASSERTION(
|
|
afterRememberedLeftBQ.IsSet(),
|
|
"Failed to set after remembered left blockquote element");
|
|
nsresult rv = CollapseSelectionTo(afterRememberedLeftBQ);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed, but ignored");
|
|
}
|
|
}
|
|
// And pull selection before beginning of right element of last split
|
|
// indented element.
|
|
if (outdentResult.GetRightContent()) {
|
|
const nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return EditActionHandled();
|
|
}
|
|
const RangeBoundary& atStartOfSelection = firstRange->StartRef();
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
if (atStartOfSelection.Container() == outdentResult.GetRightContent() ||
|
|
EditorUtils::IsDescendantOf(*atStartOfSelection.Container(),
|
|
*outdentResult.GetRightContent())) {
|
|
// Selection is inside the right element - push it before it.
|
|
EditorRawDOMPoint atRememberedRightBQ(outdentResult.GetRightContent());
|
|
nsresult rv = CollapseSelectionTo(atRememberedRightBQ);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed, but ignored");
|
|
}
|
|
}
|
|
return EditActionHandled();
|
|
}
|
|
|
|
SplitRangeOffFromNodeResult HTMLEditor::HandleOutdentAtSelectionInternal() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
|
|
bool useCSS = IsCSSEnabled();
|
|
|
|
// Convert the selection ranges into "promoted" selection ranges: this
|
|
// basically just expands the range to include the immediate block parent,
|
|
// and then further expands to include any ancestors whose children are all
|
|
// in the range
|
|
AutoTArray<OwningNonNull<nsIContent>, 64> arrayOfContents;
|
|
nsresult rv = SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges(
|
|
arrayOfContents, EditSubAction::eOutdent, CollectNonEditableNodes::Yes);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::"
|
|
"SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges() "
|
|
"failed");
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
|
|
nsCOMPtr<nsIContent> leftContentOfLastOutdented;
|
|
nsCOMPtr<nsIContent> middleContentOfLastOutdented;
|
|
nsCOMPtr<nsIContent> rightContentOfLastOutdented;
|
|
RefPtr<Element> indentedParentElement;
|
|
nsCOMPtr<nsIContent> firstContentToBeOutdented, lastContentToBeOutdented;
|
|
BlockIndentedWith indentedParentIndentedWith = BlockIndentedWith::HTML;
|
|
for (OwningNonNull<nsIContent>& content : arrayOfContents) {
|
|
// Here's where we actually figure out what to do
|
|
EditorDOMPoint atContent(content);
|
|
if (!atContent.IsSet()) {
|
|
continue;
|
|
}
|
|
|
|
// If it's a `<blockquote>`, remove it to outdent its children.
|
|
if (content->IsHTMLElement(nsGkAtoms::blockquote)) {
|
|
// If we've already found an ancestor block element indented, we need to
|
|
// split it and remove the block element first.
|
|
if (indentedParentElement) {
|
|
MOZ_ASSERT(indentedParentElement == content);
|
|
SplitRangeOffFromNodeResult outdentResult = OutdentPartOfBlock(
|
|
*indentedParentElement, *firstContentToBeOutdented,
|
|
*lastContentToBeOutdented, indentedParentIndentedWith);
|
|
if (outdentResult.Failed()) {
|
|
NS_WARNING("HTMLEditor::OutdentPartOfBlock() failed");
|
|
return outdentResult;
|
|
}
|
|
leftContentOfLastOutdented = outdentResult.GetLeftContent();
|
|
middleContentOfLastOutdented = outdentResult.GetMiddleContent();
|
|
rightContentOfLastOutdented = outdentResult.GetRightContent();
|
|
indentedParentElement = nullptr;
|
|
firstContentToBeOutdented = nullptr;
|
|
lastContentToBeOutdented = nullptr;
|
|
indentedParentIndentedWith = BlockIndentedWith::HTML;
|
|
}
|
|
nsresult rv = RemoveBlockContainerWithTransaction(
|
|
MOZ_KnownLive(*content->AsElement()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveBlockContainerWithTransaction() failed");
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// If we're using CSS and the node is a block element, check its start
|
|
// margin whether it's indented with CSS.
|
|
if (useCSS && HTMLEditUtils::IsBlockElement(content)) {
|
|
nsStaticAtom& marginProperty =
|
|
MarginPropertyAtomForIndent(MOZ_KnownLive(content));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
nsAutoString value;
|
|
DebugOnly<nsresult> rvIgnored =
|
|
CSSEditUtils::GetSpecifiedProperty(content, marginProperty, value);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rvIgnored),
|
|
"CSSEditUtils::GetSpecifiedProperty() failed, but ignored");
|
|
float startMargin = 0;
|
|
RefPtr<nsAtom> unit;
|
|
CSSEditUtils::ParseLength(value, &startMargin, getter_AddRefs(unit));
|
|
// If indented with CSS, we should decrease the start mergin.
|
|
if (startMargin > 0) {
|
|
nsresult rv = ChangeMarginStart(MOZ_KnownLive(*content->AsElement()),
|
|
ChangeMargin::Decrease);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::ChangeMarginStart(ChangeMargin::"
|
|
"Decrease) failed, but ignored");
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// If it's a list item, we should treat as that it "indents" its children.
|
|
if (HTMLEditUtils::IsListItem(content)) {
|
|
// If it is a list item, that means we are not outdenting whole list.
|
|
// XXX I don't understand this sentence... We may meet parent list
|
|
// element, no?
|
|
if (indentedParentElement) {
|
|
SplitRangeOffFromNodeResult outdentResult = OutdentPartOfBlock(
|
|
*indentedParentElement, *firstContentToBeOutdented,
|
|
*lastContentToBeOutdented, indentedParentIndentedWith);
|
|
if (NS_WARN_IF(outdentResult.Failed())) {
|
|
return outdentResult;
|
|
}
|
|
leftContentOfLastOutdented = outdentResult.GetLeftContent();
|
|
middleContentOfLastOutdented = outdentResult.GetMiddleContent();
|
|
rightContentOfLastOutdented = outdentResult.GetRightContent();
|
|
indentedParentElement = nullptr;
|
|
firstContentToBeOutdented = nullptr;
|
|
lastContentToBeOutdented = nullptr;
|
|
indentedParentIndentedWith = BlockIndentedWith::HTML;
|
|
}
|
|
// XXX `content` could become different element since
|
|
// `OutdentPartOfBlock()` may run mutation event listeners.
|
|
rv = LiftUpListItemElement(MOZ_KnownLive(*content->AsElement()),
|
|
LiftUpFromAllParentListElements::No);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::LiftUpListItemElement(LiftUpFromAllParentListElements:"
|
|
":No) failed");
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// If we've found an ancestor block element which indents its children
|
|
// and the current node is NOT a descendant of it, we should remove it to
|
|
// outdent its children. Otherwise, i.e., current node is a descendant of
|
|
// it, we meet new node which should be outdented when the indented parent
|
|
// is removed.
|
|
if (indentedParentElement) {
|
|
if (EditorUtils::IsDescendantOf(*content, *indentedParentElement)) {
|
|
// Extend the range to be outdented at removing the
|
|
// indentedParentElement.
|
|
lastContentToBeOutdented = content;
|
|
continue;
|
|
}
|
|
SplitRangeOffFromNodeResult outdentResult = OutdentPartOfBlock(
|
|
*indentedParentElement, *firstContentToBeOutdented,
|
|
*lastContentToBeOutdented, indentedParentIndentedWith);
|
|
if (outdentResult.Failed()) {
|
|
NS_WARNING("HTMLEditor::OutdentPartOfBlock() failed");
|
|
return outdentResult;
|
|
}
|
|
leftContentOfLastOutdented = outdentResult.GetLeftContent();
|
|
middleContentOfLastOutdented = outdentResult.GetMiddleContent();
|
|
rightContentOfLastOutdented = outdentResult.GetRightContent();
|
|
indentedParentElement = nullptr;
|
|
firstContentToBeOutdented = nullptr;
|
|
lastContentToBeOutdented = nullptr;
|
|
// curBlockIndentedWith = HTMLEditor::BlockIndentedWith::HTML;
|
|
|
|
// Then, we need to look for next indentedParentElement.
|
|
}
|
|
|
|
indentedParentIndentedWith = BlockIndentedWith::HTML;
|
|
RefPtr<Element> editingHost = GetActiveEditingHost();
|
|
for (nsCOMPtr<nsIContent> parentContent = content->GetParent();
|
|
parentContent && !parentContent->IsHTMLElement(nsGkAtoms::body) &&
|
|
parentContent != editingHost &&
|
|
(parentContent->IsHTMLElement(nsGkAtoms::table) ||
|
|
!HTMLEditUtils::IsAnyTableElement(parentContent));
|
|
parentContent = parentContent->GetParent()) {
|
|
// If we reach a `<blockquote>` ancestor, it should be split at next
|
|
// time at least for outdenting current node.
|
|
if (parentContent->IsHTMLElement(nsGkAtoms::blockquote)) {
|
|
indentedParentElement = parentContent->AsElement();
|
|
firstContentToBeOutdented = content;
|
|
lastContentToBeOutdented = content;
|
|
break;
|
|
}
|
|
|
|
if (!useCSS) {
|
|
continue;
|
|
}
|
|
|
|
nsCOMPtr<nsINode> grandParentNode = parentContent->GetParentNode();
|
|
nsStaticAtom& marginProperty =
|
|
MarginPropertyAtomForIndent(MOZ_KnownLive(content));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(grandParentNode != parentContent->GetParentNode())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
|
|
}
|
|
nsAutoString value;
|
|
DebugOnly<nsresult> rvIgnored = CSSEditUtils::GetSpecifiedProperty(
|
|
*parentContent, marginProperty, value);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rvIgnored),
|
|
"CSSEditUtils::GetSpecifiedProperty() failed, but ignored");
|
|
// XXX Now, editing host may become different element. If so, shouldn't
|
|
// we stop this handling?
|
|
float startMargin;
|
|
RefPtr<nsAtom> unit;
|
|
CSSEditUtils::ParseLength(value, &startMargin, getter_AddRefs(unit));
|
|
// If we reach a block element which indents its children with start
|
|
// margin, we should remove it at next time.
|
|
if (startMargin > 0 &&
|
|
!(HTMLEditUtils::IsAnyListElement(atContent.GetContainer()) &&
|
|
HTMLEditUtils::IsAnyListElement(content))) {
|
|
indentedParentElement = parentContent->AsElement();
|
|
firstContentToBeOutdented = content;
|
|
lastContentToBeOutdented = content;
|
|
indentedParentIndentedWith = BlockIndentedWith::CSS;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (indentedParentElement) {
|
|
continue;
|
|
}
|
|
|
|
// If we don't have any block elements which indents current node and
|
|
// both current node and its parent are list element, remove current
|
|
// node to move all its children to the parent list.
|
|
// XXX This is buggy. When both lists' item types are different,
|
|
// we create invalid tree. E.g., `<ul>` may have `<dd>` as its
|
|
// list item element.
|
|
if (HTMLEditUtils::IsAnyListElement(atContent.GetContainer())) {
|
|
// Move node out of list
|
|
if (HTMLEditUtils::IsAnyListElement(content)) {
|
|
// Just unwrap this sublist
|
|
nsresult rv = RemoveBlockContainerWithTransaction(
|
|
MOZ_KnownLive(*content->AsElement()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::RemoveBlockContainerWithTransaction() failed");
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// If current content is a list element but its parent is not a list
|
|
// element, move children to where it is and remove it from the tree.
|
|
if (HTMLEditUtils::IsAnyListElement(content)) {
|
|
// XXX If mutation event listener appends new children forever, this
|
|
// becomes an infinite loop so that we should set limitation from
|
|
// first child count.
|
|
for (nsCOMPtr<nsIContent> lastChildContent = content->GetLastChild();
|
|
lastChildContent; lastChildContent = content->GetLastChild()) {
|
|
if (HTMLEditUtils::IsListItem(lastChildContent)) {
|
|
nsresult rv = LiftUpListItemElement(
|
|
MOZ_KnownLive(*lastChildContent->AsElement()),
|
|
LiftUpFromAllParentListElements::No);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::LiftUpListItemElement("
|
|
"LiftUpFromAllParentListElements::No) failed");
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsAnyListElement(lastChildContent)) {
|
|
// We have an embedded list, so move it out from under the parent
|
|
// list. Be sure to put it after the parent list because this
|
|
// loop iterates backwards through the parent's list of children.
|
|
EditorDOMPoint afterCurrentList(EditorDOMPoint::After(atContent));
|
|
NS_WARNING_ASSERTION(
|
|
afterCurrentList.IsSet(),
|
|
"Failed to set it to after current list element");
|
|
nsresult rv =
|
|
MoveNodeWithTransaction(*lastChildContent, afterCurrentList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Delete any non-list items for now
|
|
// XXX Chrome moves it from the list element. We should follow it.
|
|
nsresult rv = DeleteNodeWithTransaction(*lastChildContent);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
}
|
|
// Delete the now-empty list
|
|
nsresult rv = RemoveBlockContainerWithTransaction(
|
|
MOZ_KnownLive(*content->AsElement()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveBlockContainerWithTransaction() failed");
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (useCSS) {
|
|
if (RefPtr<Element> element = content->GetAsElementOrParentElement()) {
|
|
nsresult rv = ChangeMarginStart(*element, ChangeMargin::Decrease);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::ChangeMarginStart(ChangeMargin::"
|
|
"Decrease) failed, but ignored");
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (!indentedParentElement) {
|
|
return SplitRangeOffFromNodeResult(leftContentOfLastOutdented,
|
|
middleContentOfLastOutdented,
|
|
rightContentOfLastOutdented);
|
|
}
|
|
|
|
// We have a <blockquote> we haven't finished handling.
|
|
SplitRangeOffFromNodeResult outdentResult =
|
|
OutdentPartOfBlock(*indentedParentElement, *firstContentToBeOutdented,
|
|
*lastContentToBeOutdented, indentedParentIndentedWith);
|
|
NS_WARNING_ASSERTION(outdentResult.Succeeded(),
|
|
"HTMLEditor::OutdentPartOfBlock() failed");
|
|
return outdentResult;
|
|
}
|
|
|
|
SplitRangeOffFromNodeResult
|
|
HTMLEditor::SplitRangeOffFromBlockAndRemoveMiddleContainer(
|
|
Element& aBlockElement, nsIContent& aStartOfRange,
|
|
nsIContent& aEndOfRange) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
SplitRangeOffFromNodeResult splitResult =
|
|
SplitRangeOffFromBlock(aBlockElement, aStartOfRange, aEndOfRange);
|
|
if (NS_WARN_IF(splitResult.Rv() == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return splitResult;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
splitResult.Succeeded(),
|
|
"HTMLEditor::SplitRangeOffFromBlock() failed, but might be ignored");
|
|
nsresult rv = RemoveBlockContainerWithTransaction(aBlockElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveBlockContainerWithTransaction() failed");
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
return SplitRangeOffFromNodeResult(splitResult.GetLeftContent(), nullptr,
|
|
splitResult.GetRightContent());
|
|
}
|
|
|
|
SplitRangeOffFromNodeResult HTMLEditor::SplitRangeOffFromBlock(
|
|
Element& aBlockElement, nsIContent& aStartOfMiddleElement,
|
|
nsIContent& aEndOfMiddleElement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
// aStartOfMiddleElement and aEndOfMiddleElement must be exclusive
|
|
// descendants of aBlockElement.
|
|
MOZ_ASSERT(EditorUtils::IsDescendantOf(aStartOfMiddleElement, aBlockElement));
|
|
MOZ_ASSERT(EditorUtils::IsDescendantOf(aEndOfMiddleElement, aBlockElement));
|
|
|
|
// Split at the start.
|
|
SplitNodeResult splitAtStartResult = SplitNodeDeepWithTransaction(
|
|
aBlockElement, EditorDOMPoint(&aStartOfMiddleElement),
|
|
SplitAtEdges::eDoNotCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(splitAtStartResult.Succeeded(),
|
|
"HTMLEditor::SplitNodeDeepWithTransaction(SplitAtEdges::"
|
|
"eDoNotCreateEmptyContainer) failed");
|
|
|
|
// Split at after the end
|
|
EditorDOMPoint atAfterEnd(&aEndOfMiddleElement);
|
|
DebugOnly<bool> advanced = atAfterEnd.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced, "Failed to advance offset after the end node");
|
|
SplitNodeResult splitAtEndResult = SplitNodeDeepWithTransaction(
|
|
aBlockElement, atAfterEnd, SplitAtEdges::eDoNotCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(splitAtEndResult.Succeeded(),
|
|
"HTMLEditor::SplitNodeDeepWithTransaction(SplitAtEdges::"
|
|
"eDoNotCreateEmptyContainer) failed");
|
|
|
|
return SplitRangeOffFromNodeResult(splitAtStartResult, splitAtEndResult);
|
|
}
|
|
|
|
SplitRangeOffFromNodeResult HTMLEditor::OutdentPartOfBlock(
|
|
Element& aBlockElement, nsIContent& aStartOfOutdent,
|
|
nsIContent& aEndOfOutdent, BlockIndentedWith aBlockIndentedWith) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
SplitRangeOffFromNodeResult splitResult =
|
|
SplitRangeOffFromBlock(aBlockElement, aStartOfOutdent, aEndOfOutdent);
|
|
if (NS_WARN_IF(splitResult.EditorDestroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
|
|
if (!splitResult.GetMiddleContentAsElement()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitRangeOffFromBlock() didn't return middle content");
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_FAILURE);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
splitResult.Succeeded(),
|
|
"HTMLEditor::SplitRangeOffFromBlock() failed, but might be ignored");
|
|
|
|
if (aBlockIndentedWith == BlockIndentedWith::HTML) {
|
|
nsresult rv = RemoveBlockContainerWithTransaction(
|
|
MOZ_KnownLive(*splitResult.GetMiddleContentAsElement()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveBlockContainerWithTransaction() failed");
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
return SplitRangeOffFromNodeResult(splitResult.GetLeftContent(), nullptr,
|
|
splitResult.GetRightContent());
|
|
}
|
|
|
|
if (splitResult.GetMiddleContentAsElement()) {
|
|
nsresult rv = ChangeMarginStart(
|
|
MOZ_KnownLive(*splitResult.GetMiddleContentAsElement()),
|
|
ChangeMargin::Decrease);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::ChangeMarginStart(ChangeMargin::Decrease) failed");
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
return splitResult;
|
|
}
|
|
|
|
return splitResult;
|
|
}
|
|
|
|
CreateElementResult HTMLEditor::ChangeListElementType(Element& aListElement,
|
|
nsAtom& aNewListTag,
|
|
nsAtom& aNewListItemTag) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
for (nsIContent* childContent = aListElement.GetFirstChild(); childContent;
|
|
childContent = childContent->GetNextSibling()) {
|
|
if (!childContent->IsElement()) {
|
|
continue;
|
|
}
|
|
if (HTMLEditUtils::IsListItem(childContent->AsElement()) &&
|
|
!childContent->IsHTMLElement(&aNewListItemTag)) {
|
|
OwningNonNull<Element> listItemElement = *childContent->AsElement();
|
|
RefPtr<Element> newListItemElement =
|
|
ReplaceContainerWithTransaction(listItemElement, aNewListItemTag);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return CreateElementResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!newListItemElement) {
|
|
NS_WARNING("HTMLEditor::ReplaceContainerWithTransaction() failed");
|
|
return CreateElementResult(NS_ERROR_FAILURE);
|
|
}
|
|
childContent = newListItemElement;
|
|
continue;
|
|
}
|
|
if (HTMLEditUtils::IsAnyListElement(childContent->AsElement()) &&
|
|
!childContent->IsHTMLElement(&aNewListTag)) {
|
|
// XXX List elements shouldn't have other list elements as their
|
|
// child. Why do we handle such invalid tree?
|
|
// -> Maybe, for bug 525888.
|
|
OwningNonNull<Element> listElement = *childContent->AsElement();
|
|
CreateElementResult convertListTypeResult =
|
|
ChangeListElementType(listElement, aNewListTag, aNewListItemTag);
|
|
if (convertListTypeResult.Failed()) {
|
|
NS_WARNING("HTMLEditor::ChangeListElementType() failed");
|
|
return convertListTypeResult;
|
|
}
|
|
childContent = convertListTypeResult.GetNewNode();
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (aListElement.IsHTMLElement(&aNewListTag)) {
|
|
return CreateElementResult(&aListElement);
|
|
}
|
|
|
|
RefPtr<Element> listElement =
|
|
ReplaceContainerWithTransaction(aListElement, aNewListTag);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return CreateElementResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(listElement,
|
|
"HTMLEditor::ReplaceContainerWithTransaction() failed");
|
|
return CreateElementResult(std::move(listElement));
|
|
}
|
|
|
|
nsresult HTMLEditor::CreateStyleForInsertText(
|
|
const AbstractRange& aAbstractRange) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aAbstractRange.IsPositioned());
|
|
MOZ_ASSERT(mTypeInState);
|
|
|
|
RefPtr<Element> documentRootElement = GetDocument()->GetRootElement();
|
|
if (NS_WARN_IF(!documentRootElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// process clearing any styles first
|
|
UniquePtr<PropItem> item = mTypeInState->TakeClearProperty();
|
|
|
|
EditorDOMPoint pointToPutCaret(aAbstractRange.StartRef());
|
|
bool putCaret = false;
|
|
{
|
|
// Transactions may set selection, but we will set selection if necessary.
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
|
|
while (item && pointToPutCaret.GetContainer() != documentRootElement) {
|
|
EditResult result =
|
|
ClearStyleAt(pointToPutCaret, MOZ_KnownLive(item->tag),
|
|
MOZ_KnownLive(item->attr), item->specifiedStyle);
|
|
if (result.Failed()) {
|
|
NS_WARNING("HTMLEditor::ClearStyleAt() failed");
|
|
return result.Rv();
|
|
}
|
|
pointToPutCaret = result.PointRefToCollapseSelection();
|
|
item = mTypeInState->TakeClearProperty();
|
|
putCaret = true;
|
|
}
|
|
}
|
|
|
|
// then process setting any styles
|
|
int32_t relFontSize = mTypeInState->TakeRelativeFontSize();
|
|
item = mTypeInState->TakeSetProperty();
|
|
|
|
if (item || relFontSize) {
|
|
// we have at least one style to add; make a new text node to insert style
|
|
// nodes above.
|
|
if (pointToPutCaret.IsInTextNode()) {
|
|
// if we are in a text node, split it
|
|
SplitNodeResult splitTextNodeResult = SplitNodeDeepWithTransaction(
|
|
MOZ_KnownLive(*pointToPutCaret.GetContainerAsText()), pointToPutCaret,
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (splitTextNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitNodeDeepWithTransaction(SplitAtEdges::"
|
|
"eAllowToCreateEmptyContainer) failed");
|
|
return splitTextNodeResult.Rv();
|
|
}
|
|
pointToPutCaret = splitTextNodeResult.SplitPoint();
|
|
}
|
|
if (!pointToPutCaret.IsInContentNode() ||
|
|
!HTMLEditUtils::IsContainerNode(
|
|
*pointToPutCaret.ContainerAsContent())) {
|
|
return NS_OK;
|
|
}
|
|
RefPtr<Text> newEmptyTextNode = CreateTextNode(u""_ns);
|
|
if (!newEmptyTextNode) {
|
|
NS_WARNING("EditorBase::CreateTextNode() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsresult rv = InsertNodeWithTransaction(*newEmptyTextNode, pointToPutCaret);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("EditorBase::InsertNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
pointToPutCaret.Set(newEmptyTextNode, 0);
|
|
putCaret = true;
|
|
|
|
if (relFontSize) {
|
|
// dir indicated bigger versus smaller. 1 = bigger, -1 = smaller
|
|
HTMLEditor::FontSize dir = relFontSize > 0 ? HTMLEditor::FontSize::incr
|
|
: HTMLEditor::FontSize::decr;
|
|
for (int32_t j = 0; j < DeprecatedAbs(relFontSize); j++) {
|
|
nsresult rv =
|
|
RelativeFontChangeOnTextNode(dir, *newEmptyTextNode, 0, -1);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RelativeFontChangeOnTextNode() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
|
|
while (item) {
|
|
nsresult rv = SetInlinePropertyOnNode(
|
|
MOZ_KnownLive(*pointToPutCaret.GetContainerAsContent()),
|
|
MOZ_KnownLive(*item->tag), MOZ_KnownLive(item->attr), item->value);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::SetInlinePropertyOnNode() failed");
|
|
return rv;
|
|
}
|
|
item = mTypeInState->TakeSetProperty();
|
|
}
|
|
}
|
|
|
|
if (!putCaret) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult rv = CollapseSelectionTo(pointToPutCaret);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed");
|
|
return rv;
|
|
}
|
|
|
|
bool HTMLEditor::IsEmptyBlockElement(Element& aElement,
|
|
IgnoreSingleBR aIgnoreSingleBR) const {
|
|
if (!HTMLEditUtils::IsBlockElement(aElement)) {
|
|
return false;
|
|
}
|
|
return IsEmptyNode(aElement, aIgnoreSingleBR == IgnoreSingleBR::Yes);
|
|
}
|
|
|
|
EditActionResult HTMLEditor::AlignAsSubAction(const nsAString& aAlignType) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this,
|
|
ScrollSelectionIntoView::Yes);
|
|
IgnoredErrorResult ignoredError;
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eSetOrClearAlignment, nsIEditor::eNext,
|
|
ignoredError);
|
|
if (NS_WARN_IF(ignoredError.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED))) {
|
|
return EditActionResult(ignoredError.StealNSResult());
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"HTMLEditor::OnStartToHandleTopLevelEditSubAction() failed, but ignored");
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (result.Failed() || result.Canceled()) {
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::CanHandleHTMLEditSubAction() failed");
|
|
return result;
|
|
}
|
|
|
|
if (IsSelectionRangeContainerNotContent()) {
|
|
NS_WARNING("Some selection containers are not content node, but ignored");
|
|
return EditActionIgnored();
|
|
}
|
|
|
|
nsresult rv = EnsureNoPaddingBRElementForEmptyEditor();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"EditorBase::EnsureNoPaddingBRElementForEmptyEditor() "
|
|
"failed, but ignored");
|
|
|
|
if (IsSelectionRangeContainerNotContent()) {
|
|
NS_WARNING("Mutation event listener might have changed the selection");
|
|
return EditActionHandled(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
|
|
}
|
|
|
|
if (NS_SUCCEEDED(rv) && SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = EnsureCaretNotAfterPaddingBRElement();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::EnsureCaretNotAfterPaddingBRElement() "
|
|
"failed, but ignored");
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsresult rv = PrepareInlineStylesForCaret();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::PrepareInlineStylesForCaret() failed, but ignored");
|
|
}
|
|
}
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeExtendSelectionToHardLineEdgesForBlockEditAction() "
|
|
"failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
}
|
|
|
|
// AlignContentsAtSelection() creates AutoSelectionRestorer. Therefore,
|
|
// we need to check whether we've been destroyed or not even if it returns
|
|
// NS_OK.
|
|
rv = AlignContentsAtSelection(aAlignType);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::AlignContentsAtSelection() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
if (IsSelectionRangeContainerNotContent()) {
|
|
NS_WARNING("Mutation event listener might have changed the selection");
|
|
return EditActionHandled(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
|
|
}
|
|
|
|
rv = MaybeInsertPaddingBRElementForEmptyLastLineAtSelection();
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::MaybeInsertPaddingBRElementForEmptyLastLineAtSelection() "
|
|
"failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
nsresult HTMLEditor::AlignContentsAtSelection(const nsAString& aAlignType) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(!IsSelectionRangeContainerNotContent());
|
|
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
|
|
// Convert the selection ranges into "promoted" selection ranges: This
|
|
// basically just expands the range to include the immediate block parent,
|
|
// and then further expands to include any ancestors whose children are all
|
|
// in the range
|
|
AutoTArray<OwningNonNull<nsIContent>, 64> arrayOfContents;
|
|
nsresult rv = SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges(
|
|
arrayOfContents, EditSubAction::eSetOrClearAlignment,
|
|
CollectNonEditableNodes::Yes);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::"
|
|
"SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges("
|
|
"eSetOrClearAlignment, CollectNonEditableNodes::Yes) failed");
|
|
return rv;
|
|
}
|
|
|
|
// If we don't have any nodes, or we have only a single br, then we are
|
|
// creating an empty alignment div. We have to do some different things for
|
|
// these.
|
|
bool createEmptyDivElement = arrayOfContents.IsEmpty();
|
|
if (arrayOfContents.Length() == 1) {
|
|
OwningNonNull<nsIContent>& content = arrayOfContents[0];
|
|
|
|
if (HTMLEditUtils::SupportsAlignAttr(content)) {
|
|
// The node is a table element, an hr, a paragraph, a div or a section
|
|
// header; in HTML 4, it can directly carry the ALIGN attribute and we
|
|
// don't need to make a div! If we are in CSS mode, all the work is done
|
|
// in SetBlockElementAlign().
|
|
nsresult rv =
|
|
SetBlockElementAlign(MOZ_KnownLive(*content->AsElement()), aAlignType,
|
|
EditTarget::OnlyDescendantsExceptTable);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::SetBlockElementAlign() failed");
|
|
return rv;
|
|
}
|
|
|
|
if (content->IsHTMLElement(nsGkAtoms::br)) {
|
|
// The special case createEmptyDivElement code (below) that consumes
|
|
// `<br>` elements can cause tables to split if the start node of the
|
|
// selection is not in a table cell or caption, for example parent is a
|
|
// `<tr>`. Avoid this unnecessary splitting if possible by leaving
|
|
// createEmptyDivElement false so that we fall through to the normal case
|
|
// alignment code.
|
|
//
|
|
// XXX: It seems a little error prone for the createEmptyDivElement
|
|
// special case code to assume that the start node of the selection
|
|
// is the parent of the single node in the arrayOfContents, as the
|
|
// paragraph above points out. Do we rely on the selection start
|
|
// node because of the fact that arrayOfContents can be empty? We
|
|
// should probably revisit this issue. - kin
|
|
|
|
const nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
const RangeBoundary& atStartOfSelection = firstRange->StartRef();
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsINode* parent = atStartOfSelection.Container();
|
|
createEmptyDivElement = !HTMLEditUtils::IsAnyTableElement(parent) ||
|
|
HTMLEditUtils::IsTableCellOrCaption(*parent);
|
|
}
|
|
}
|
|
|
|
if (createEmptyDivElement) {
|
|
if (IsSelectionRangeContainerNotContent()) {
|
|
NS_WARNING("Mutaiton event listener might have changed the selection");
|
|
return NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE;
|
|
}
|
|
EditActionResult result =
|
|
AlignContentsAtSelectionWithEmptyDivElement(aAlignType);
|
|
NS_WARNING_ASSERTION(
|
|
result.Succeeded(),
|
|
"HTMLEditor::AlignContentsAtSelectionWithEmptyDivElement() failed");
|
|
if (result.Handled()) {
|
|
restoreSelectionLater.Abort();
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
rv = AlignNodesAndDescendants(arrayOfContents, aAlignType);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::AlignNodesAndDescendants() failed");
|
|
return rv;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::AlignContentsAtSelectionWithEmptyDivElement(
|
|
const nsAString& aAlignType) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
MOZ_ASSERT(!IsSelectionRangeContainerNotContent());
|
|
|
|
const nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
EditorDOMPoint atStartOfSelection(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
SplitNodeResult splitNodeResult = MaybeSplitAncestorsForInsertWithTransaction(
|
|
*nsGkAtoms::div, atStartOfSelection);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction(nsGkAtoms::"
|
|
"div) failed");
|
|
return EditActionResult(splitNodeResult.Rv());
|
|
}
|
|
|
|
EditorDOMPoint pointToInsertDiv(splitNodeResult.SplitPoint());
|
|
|
|
// Consume a trailing br, if any. This is to keep an alignment from
|
|
// creating extra lines, if possible.
|
|
if (nsCOMPtr<nsIContent> maybeBRContent =
|
|
GetNextEditableHTMLNodeInBlock(splitNodeResult.SplitPoint())) {
|
|
if (maybeBRContent->IsHTMLElement(nsGkAtoms::br) &&
|
|
pointToInsertDiv.GetChild()) {
|
|
// Making use of html structure... if next node after where we are
|
|
// putting our div is not a block, then the br we found is in same block
|
|
// we are, so it's safe to consume it.
|
|
if (nsIContent* nextEditableSibling =
|
|
GetNextHTMLSibling(pointToInsertDiv.GetChild())) {
|
|
if (!HTMLEditUtils::IsBlockElement(*nextEditableSibling)) {
|
|
AutoEditorDOMPointChildInvalidator lockOffset(pointToInsertDiv);
|
|
nsresult rv = DeleteNodeWithTransaction(*maybeBRContent);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
RefPtr<Element> divElement =
|
|
CreateNodeWithTransaction(*nsGkAtoms::div, pointToInsertDiv);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (!divElement) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction(nsGkAtoms::div) failed");
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
// Remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = divElement;
|
|
// Set up the alignment on the div, using HTML or CSS
|
|
nsresult rv = SetBlockElementAlign(*divElement, aAlignType,
|
|
EditTarget::OnlyDescendantsExceptTable);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SetBlockElementAlign(EditTarget::"
|
|
"OnlyDescendantsExceptTable) failed");
|
|
return EditActionResult(rv);
|
|
}
|
|
// Put in a padding <br> element for empty last line so that it won't get
|
|
// deleted.
|
|
CreateElementResult createPaddingBRResult =
|
|
InsertPaddingBRElementForEmptyLastLineWithTransaction(
|
|
EditorDOMPoint(divElement, 0));
|
|
if (createPaddingBRResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::InsertPaddingBRElementForEmptyLastLineWithTransaction() "
|
|
"failed");
|
|
return EditActionResult(createPaddingBRResult.Rv());
|
|
}
|
|
rv = CollapseSelectionToStartOf(*divElement);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
nsresult HTMLEditor::AlignNodesAndDescendants(
|
|
nsTArray<OwningNonNull<nsIContent>>& aArrayOfContents,
|
|
const nsAString& aAlignType) {
|
|
// Detect all the transitions in the array, where a transition means that
|
|
// adjacent nodes in the array don't have the same parent.
|
|
AutoTArray<bool, 64> transitionList;
|
|
HTMLEditor::MakeTransitionList(aArrayOfContents, transitionList);
|
|
|
|
// Okay, now go through all the nodes and give them an align attrib or put
|
|
// them in a div, or whatever is appropriate. Woohoo!
|
|
|
|
RefPtr<Element> createdDivElement;
|
|
bool useCSS = IsCSSEnabled();
|
|
int32_t indexOfTransitionList = -1;
|
|
for (OwningNonNull<nsIContent>& content : aArrayOfContents) {
|
|
++indexOfTransitionList;
|
|
|
|
// Ignore all non-editable nodes. Leave them be.
|
|
if (!EditorUtils::IsEditableContent(content, EditorType::HTML)) {
|
|
continue;
|
|
}
|
|
|
|
// The node is a table element, an hr, a paragraph, a div or a section
|
|
// header; in HTML 4, it can directly carry the ALIGN attribute and we
|
|
// don't need to nest it, just set the alignment. In CSS, assign the
|
|
// corresponding CSS styles in SetBlockElementAlign().
|
|
if (HTMLEditUtils::SupportsAlignAttr(content)) {
|
|
nsresult rv =
|
|
SetBlockElementAlign(MOZ_KnownLive(*content->AsElement()), aAlignType,
|
|
EditTarget::NodeAndDescendantsExceptTable);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SetBlockElementAlign(EditTarget::"
|
|
"NodeAndDescendantsExceptTable) failed");
|
|
return rv;
|
|
}
|
|
// Clear out createdDivElement so that we don't put nodes after this one
|
|
// into it
|
|
createdDivElement = nullptr;
|
|
continue;
|
|
}
|
|
|
|
EditorDOMPoint atContent(content);
|
|
if (NS_WARN_IF(!atContent.IsSet())) {
|
|
continue;
|
|
}
|
|
|
|
// Skip insignificant formatting text nodes to prevent unnecessary
|
|
// structure splitting!
|
|
if (content->IsText() &&
|
|
((HTMLEditUtils::IsAnyTableElement(atContent.GetContainer()) &&
|
|
!HTMLEditUtils::IsTableCellOrCaption(*atContent.GetContainer())) ||
|
|
HTMLEditUtils::IsAnyListElement(atContent.GetContainer()) ||
|
|
IsEmptyNode(*content))) {
|
|
continue;
|
|
}
|
|
|
|
// If it's a list item, or a list inside a list, forget any "current" div,
|
|
// and instead put divs inside the appropriate block (td, li, etc.)
|
|
if (HTMLEditUtils::IsListItem(content) ||
|
|
HTMLEditUtils::IsAnyListElement(content)) {
|
|
Element* listOrListItemElement = content->AsElement();
|
|
AutoEditorDOMPointOffsetInvalidator lockChild(atContent);
|
|
// MOZ_KnownLive(*listOrListItemElement): An element of aArrayOfContents
|
|
// which is array of OwningNonNull.
|
|
nsresult rv = RemoveAlignFromDescendants(
|
|
MOZ_KnownLive(*listOrListItemElement), aAlignType,
|
|
EditTarget::OnlyDescendantsExceptTable);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::RemoveAlignFromDescendants(EditTarget::"
|
|
"OnlyDescendantsExceptTable) failed");
|
|
return rv;
|
|
}
|
|
|
|
if (useCSS) {
|
|
if (nsStyledElement* styledListOrListItemElement =
|
|
nsStyledElement::FromNode(listOrListItemElement)) {
|
|
// MOZ_KnownLive(*styledListOrListItemElement): An element of
|
|
// aArrayOfContents which is array of OwningNonNull.
|
|
Result<int32_t, nsresult> result =
|
|
mCSSEditUtils->SetCSSEquivalentToHTMLStyleWithTransaction(
|
|
MOZ_KnownLive(*styledListOrListItemElement), nullptr,
|
|
nsGkAtoms::align, &aAlignType);
|
|
if (result.isErr()) {
|
|
if (result.inspectErr() == NS_ERROR_EDITOR_DESTROYED) {
|
|
NS_WARNING(
|
|
"CSSEditUtils::SetCSSEquivalentToHTMLStyleWithTransaction("
|
|
"nsGkAtoms::align) destroyed the editor");
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING(
|
|
"CSSEditUtils::SetCSSEquivalentToHTMLStyleWithTransaction("
|
|
"nsGkAtoms::align) failed, but ignored");
|
|
}
|
|
}
|
|
createdDivElement = nullptr;
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsAnyListElement(atContent.GetContainer())) {
|
|
// If we don't use CSS, add a content to list element: they have to
|
|
// be inside another list, i.e., >= second level of nesting.
|
|
// XXX AlignContentsInAllTableCellsAndListItems() handles only list
|
|
// item elements and table cells. Is it intentional? Why don't
|
|
// we need to align contents in other type blocks?
|
|
// MOZ_KnownLive(*listOrListItemElement): An element of aArrayOfContents
|
|
// which is array of OwningNonNull.
|
|
nsresult rv = AlignContentsInAllTableCellsAndListItems(
|
|
MOZ_KnownLive(*listOrListItemElement), aAlignType);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::AlignContentsInAllTableCellsAndListItems() failed");
|
|
return rv;
|
|
}
|
|
createdDivElement = nullptr;
|
|
continue;
|
|
}
|
|
|
|
// Clear out createdDivElement so that we don't put nodes after this one
|
|
// into it
|
|
}
|
|
|
|
// Need to make a div to put things in if we haven't already, or if this
|
|
// node doesn't go in div we used earlier.
|
|
if (!createdDivElement || transitionList[indexOfTransitionList]) {
|
|
// First, check that our element can contain a div.
|
|
if (!HTMLEditUtils::CanNodeContain(*atContent.GetContainer(),
|
|
*nsGkAtoms::div)) {
|
|
// XXX Why do we return NS_OK here rather than returning error or
|
|
// doing continue?
|
|
return NS_OK;
|
|
}
|
|
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(*nsGkAtoms::div,
|
|
atContent);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction(nsGkAtoms:"
|
|
":div) failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
createdDivElement = CreateNodeWithTransaction(
|
|
*nsGkAtoms::div, splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!createdDivElement) {
|
|
NS_WARNING(
|
|
"EditorBase::CreateNodeWithTransaction(nsGkAtoms::div) failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// Remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = createdDivElement;
|
|
// Set up the alignment on the div
|
|
nsresult rv =
|
|
SetBlockElementAlign(*createdDivElement, aAlignType,
|
|
EditTarget::OnlyDescendantsExceptTable);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::SetBlockElementAlign(EditTarget::"
|
|
"OnlyDescendantsExceptTable) failed, but ignored");
|
|
}
|
|
|
|
// Tuck the node into the end of the active div
|
|
//
|
|
// MOZ_KnownLive because 'aArrayOfContents' is guaranteed to keep it alive.
|
|
nsresult rv = MoveNodeToEndWithTransaction(MOZ_KnownLive(content),
|
|
*createdDivElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::AlignContentsInAllTableCellsAndListItems(
|
|
Element& aElement, const nsAString& aAlignType) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
// Gather list of table cells or list items
|
|
AutoTArray<OwningNonNull<Element>, 64> arrayOfTableCellsAndListItems;
|
|
DOMIterator iter(aElement);
|
|
iter.AppendNodesToArray(
|
|
+[](nsINode& aNode, void*) -> bool {
|
|
MOZ_ASSERT(Element::FromNode(&aNode));
|
|
return HTMLEditUtils::IsTableCell(&aNode) ||
|
|
HTMLEditUtils::IsListItem(&aNode);
|
|
},
|
|
arrayOfTableCellsAndListItems);
|
|
|
|
// Now that we have the list, align their contents as requested
|
|
for (auto& tableCellOrListItemElement : arrayOfTableCellsAndListItems) {
|
|
// MOZ_KnownLive because 'arrayOfTableCellsAndListItems' is guaranteed to
|
|
// keep it alive.
|
|
nsresult rv = AlignBlockContentsWithDivElement(
|
|
MOZ_KnownLive(tableCellOrListItemElement), aAlignType);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::AlignBlockContentsWithDivElement() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::AlignBlockContentsWithDivElement(
|
|
Element& aBlockElement, const nsAString& aAlignType) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
// XXX I don't understand why we should NOT align non-editable children
|
|
// with modifying EDITABLE `<div>` element.
|
|
nsCOMPtr<nsIContent> firstEditableContent =
|
|
GetFirstEditableChild(aBlockElement);
|
|
if (!firstEditableContent) {
|
|
// This block has no editable content, nothing to align.
|
|
return NS_OK;
|
|
}
|
|
|
|
// If there is only one editable content and it's a `<div>` element,
|
|
// just set `align` attribute of it.
|
|
nsCOMPtr<nsIContent> lastEditableContent =
|
|
GetLastEditableChild(aBlockElement);
|
|
if (firstEditableContent == lastEditableContent &&
|
|
firstEditableContent->IsHTMLElement(nsGkAtoms::div)) {
|
|
nsresult rv = SetAttributeOrEquivalent(
|
|
MOZ_KnownLive(firstEditableContent->AsElement()), nsGkAtoms::align,
|
|
aAlignType, false);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"EditorBase::SetAttributeOrEquivalent(nsGkAtoms::align) failed");
|
|
return rv;
|
|
}
|
|
|
|
// Otherwise, we need to insert a `<div>` element to set `align` attribute.
|
|
// XXX Don't insert the new `<div>` element until we set `align` attribute
|
|
// for avoiding running mutation event listeners.
|
|
RefPtr<Element> divElement = CreateNodeWithTransaction(
|
|
*nsGkAtoms::div, EditorDOMPoint(&aBlockElement, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!divElement) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction(nsGkAtoms::div) failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsresult rv =
|
|
SetAttributeOrEquivalent(divElement, nsGkAtoms::align, aAlignType, false);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("EditorBase::SetAttributeOrEquivalent(nsGkAtoms::align) failed");
|
|
return rv;
|
|
}
|
|
// XXX This is tricky and does not work with mutation event listeners.
|
|
// But I'm not sure what we should do if new content is inserted.
|
|
// Anyway, I don't think that we should move editable contents
|
|
// over non-editable contents. Chrome does no do that.
|
|
while (lastEditableContent && (lastEditableContent != divElement)) {
|
|
nsresult rv = MoveNodeWithTransaction(*lastEditableContent,
|
|
EditorDOMPoint(divElement, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
lastEditableContent = GetLastEditableChild(aBlockElement);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
size_t HTMLEditor::CollectChildren(
|
|
nsINode& aNode, nsTArray<OwningNonNull<nsIContent>>& aOutArrayOfContents,
|
|
size_t aIndexToInsertChildren, CollectListChildren aCollectListChildren,
|
|
CollectTableChildren aCollectTableChildren,
|
|
CollectNonEditableNodes aCollectNonEditableNodes) const {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
size_t numberOfFoundChildren = 0;
|
|
for (nsIContent* content = GetFirstEditableChild(aNode); content;
|
|
content = content->GetNextSibling()) {
|
|
if ((aCollectListChildren == CollectListChildren::Yes &&
|
|
(HTMLEditUtils::IsAnyListElement(content) ||
|
|
HTMLEditUtils::IsListItem(content))) ||
|
|
(aCollectTableChildren == CollectTableChildren::Yes &&
|
|
HTMLEditUtils::IsAnyTableElement(content))) {
|
|
numberOfFoundChildren += CollectChildren(
|
|
*content, aOutArrayOfContents,
|
|
aIndexToInsertChildren + numberOfFoundChildren, aCollectListChildren,
|
|
aCollectTableChildren, aCollectNonEditableNodes);
|
|
} else if (aCollectNonEditableNodes == CollectNonEditableNodes::Yes ||
|
|
EditorUtils::IsEditableContent(*content, EditorType::HTML)) {
|
|
aOutArrayOfContents.InsertElementAt(
|
|
aIndexToInsertChildren + numberOfFoundChildren++, *content);
|
|
}
|
|
}
|
|
return numberOfFoundChildren;
|
|
}
|
|
|
|
nsresult HTMLEditor::MaybeExtendSelectionToHardLineEdgesForBlockEditAction() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
// This tweaks selections to be more "natural".
|
|
// Idea here is to adjust edges of selection ranges so that they do not cross
|
|
// breaks or block boundaries unless something editable beyond that boundary
|
|
// is also selected. This adjustment makes it much easier for the various
|
|
// block operations to determine what nodes to act on.
|
|
|
|
// We don't need to mess with cell selections, and we assume multirange
|
|
// selections are those.
|
|
// XXX Why? Even in <input>, user can select 2 or more ranges.
|
|
if (SelectionRefPtr()->RangeCount() != 1) {
|
|
return NS_OK;
|
|
}
|
|
|
|
const RefPtr<nsRange> range = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!range)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (NS_WARN_IF(!range->IsPositioned())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
const EditorDOMPoint startPoint(range->StartRef());
|
|
if (NS_WARN_IF(!startPoint.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
const EditorDOMPoint endPoint(range->EndRef());
|
|
if (NS_WARN_IF(!endPoint.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// adjusted values default to original values
|
|
EditorDOMPoint newStartPoint(startPoint);
|
|
EditorDOMPoint newEndPoint(endPoint);
|
|
|
|
// Is there any intervening visible white-space? If so we can't push
|
|
// selection past that, it would visibly change meaning of users selection.
|
|
WSRunScanner wsScannerAtEnd(*this, endPoint);
|
|
WSScanResult scanResultAtEnd =
|
|
wsScannerAtEnd.ScanPreviousVisibleNodeOrBlockBoundaryFrom(endPoint);
|
|
if (scanResultAtEnd.Failed()) {
|
|
NS_WARNING(
|
|
"WSRunScanner::ScanPreviousVisibleNodeOrBlockBoundaryFrom() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (scanResultAtEnd.ReachedSomething()) {
|
|
// eThisBlock and eOtherBlock conveniently distinguish cases
|
|
// of going "down" into a block and "up" out of a block.
|
|
if (wsScannerAtEnd.StartsFromOtherBlockElement()) {
|
|
// endpoint is just after the close of a block.
|
|
nsIContent* child = HTMLEditUtils::GetLastLeafChild(
|
|
*wsScannerAtEnd.StartReasonOtherBlockElementPtr(),
|
|
{LeafNodeType::LeafNodeOrChildBlock});
|
|
if (child) {
|
|
newEndPoint.SetAfter(child);
|
|
}
|
|
// else block is empty - we can leave selection alone here, i think.
|
|
} else if (wsScannerAtEnd.StartsFromCurrentBlockBoundary()) {
|
|
// endpoint is just after start of this block
|
|
nsINode* child = GetPreviousEditableHTMLNode(endPoint);
|
|
if (child) {
|
|
newEndPoint.SetAfter(child);
|
|
}
|
|
// else block is empty - we can leave selection alone here, i think.
|
|
} else if (wsScannerAtEnd.StartsFromBRElement()) {
|
|
// endpoint is just after break. lets adjust it to before it.
|
|
newEndPoint.Set(wsScannerAtEnd.StartReasonBRElementPtr());
|
|
}
|
|
}
|
|
|
|
// Is there any intervening visible white-space? If so we can't push
|
|
// selection past that, it would visibly change meaning of users selection.
|
|
WSRunScanner wsScannerAtStart(*this, startPoint);
|
|
WSScanResult scanResultAtStart =
|
|
wsScannerAtStart.ScanNextVisibleNodeOrBlockBoundaryFrom(startPoint);
|
|
if (scanResultAtStart.Failed()) {
|
|
NS_WARNING("WSRunScanner::ScanNextVisibleNodeOrBlockBoundaryFrom() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (scanResultAtStart.ReachedSomething()) {
|
|
// eThisBlock and eOtherBlock conveniently distinguish cases
|
|
// of going "down" into a block and "up" out of a block.
|
|
if (wsScannerAtStart.EndsByOtherBlockElement()) {
|
|
// startpoint is just before the start of a block.
|
|
nsINode* child = HTMLEditUtils::GetFirstLeafChild(
|
|
*wsScannerAtStart.EndReasonOtherBlockElementPtr(),
|
|
{LeafNodeType::LeafNodeOrChildBlock});
|
|
if (child) {
|
|
newStartPoint.Set(child);
|
|
}
|
|
// else block is empty - we can leave selection alone here, i think.
|
|
} else if (wsScannerAtStart.EndsByCurrentBlockBoundary()) {
|
|
// startpoint is just before end of this block
|
|
nsINode* child = GetNextEditableHTMLNode(startPoint);
|
|
if (child) {
|
|
newStartPoint.Set(child);
|
|
}
|
|
// else block is empty - we can leave selection alone here, i think.
|
|
} else if (wsScannerAtStart.EndsByBRElement()) {
|
|
// startpoint is just before a break. lets adjust it to after it.
|
|
newStartPoint.SetAfter(wsScannerAtStart.EndReasonBRElementPtr());
|
|
}
|
|
}
|
|
|
|
// There is a demented possibility we have to check for. We might have a very
|
|
// strange selection that is not collapsed and yet does not contain any
|
|
// editable content, and satisfies some of the above conditions that cause
|
|
// tweaking. In this case we don't want to tweak the selection into a block
|
|
// it was never in, etc. There are a variety of strategies one might use to
|
|
// try to detect these cases, but I think the most straightforward is to see
|
|
// if the adjusted locations "cross" the old values: i.e., new end before old
|
|
// start, or new start after old end. If so then just leave things alone.
|
|
|
|
Maybe<int32_t> comp = nsContentUtils::ComparePoints(
|
|
startPoint.ToRawRangeBoundary(), newEndPoint.ToRawRangeBoundary());
|
|
|
|
if (NS_WARN_IF(!comp)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (*comp == 1) {
|
|
return NS_OK; // New end before old start.
|
|
}
|
|
|
|
comp = nsContentUtils::ComparePoints(newStartPoint.ToRawRangeBoundary(),
|
|
endPoint.ToRawRangeBoundary());
|
|
|
|
if (NS_WARN_IF(!comp)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (*comp == 1) {
|
|
return NS_OK; // New start after old end.
|
|
}
|
|
|
|
// Otherwise set selection to new values. Note that end point may be prior
|
|
// to start point. So, we cannot use Selection::SetStartAndEndInLimit() here.
|
|
ErrorResult error;
|
|
MOZ_KnownLive(SelectionRefPtr())
|
|
->SetBaseAndExtentInLimiter(newStartPoint, newEndPoint, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error = NS_ERROR_EDITOR_DESTROYED;
|
|
} else if (error.Failed()) {
|
|
NS_WARNING("Selection::SetBaseAndExtentInLimiter() failed");
|
|
}
|
|
return error.StealNSResult();
|
|
}
|
|
|
|
// static
|
|
template <typename PT, typename RT>
|
|
EditorDOMPoint HTMLEditor::GetWhiteSpaceEndPoint(
|
|
const RangeBoundaryBase<PT, RT>& aPoint, ScanDirection aScanDirection) {
|
|
if (NS_WARN_IF(!aPoint.IsSet()) ||
|
|
NS_WARN_IF(!aPoint.Container()->IsContent())) {
|
|
return EditorDOMPoint();
|
|
}
|
|
|
|
bool isSpace = false, isNBSP = false;
|
|
nsIContent* newContent = aPoint.Container()->AsContent();
|
|
int32_t newOffset = *aPoint.Offset(
|
|
RangeBoundaryBase<PT, RT>::OffsetFilter::kValidOrInvalidOffsets);
|
|
while (newContent) {
|
|
int32_t offset = -1;
|
|
nsCOMPtr<nsIContent> content;
|
|
if (aScanDirection == ScanDirection::Backward) {
|
|
HTMLEditor::IsPrevCharInNodeWhiteSpace(newContent, newOffset, &isSpace,
|
|
&isNBSP, getter_AddRefs(content),
|
|
&offset);
|
|
} else {
|
|
HTMLEditor::IsNextCharInNodeWhiteSpace(newContent, newOffset, &isSpace,
|
|
&isNBSP, getter_AddRefs(content),
|
|
&offset);
|
|
}
|
|
if (!isSpace && !isNBSP) {
|
|
break;
|
|
}
|
|
newContent = content;
|
|
newOffset = offset;
|
|
}
|
|
return EditorDOMPoint(newContent, newOffset);
|
|
}
|
|
|
|
template <typename PT, typename RT>
|
|
EditorDOMPoint HTMLEditor::GetCurrentHardLineStartPoint(
|
|
const RangeBoundaryBase<PT, RT>& aPoint,
|
|
EditSubAction aEditSubAction) const {
|
|
if (NS_WARN_IF(!aPoint.IsSet())) {
|
|
return EditorDOMPoint();
|
|
}
|
|
|
|
EditorDOMPoint point(aPoint);
|
|
// 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;
|
|
}
|
|
point.Set(point.GetContainer());
|
|
}
|
|
|
|
// Look back through any further inline nodes that aren't across a <br>
|
|
// from us, and that are enclosed in the same block.
|
|
// I.e., looking for start of current hard line.
|
|
for (nsIContent* previousEditableContent =
|
|
GetPreviousEditableHTMLNodeInBlock(point);
|
|
previousEditableContent && previousEditableContent->GetParentNode() &&
|
|
!IsVisibleBRElement(previousEditableContent) &&
|
|
!HTMLEditUtils::IsBlockElement(*previousEditableContent);
|
|
previousEditableContent = GetPreviousEditableHTMLNodeInBlock(point)) {
|
|
point.Set(previousEditableContent);
|
|
// XXX Why don't we check \n in pre-formated text node here?
|
|
}
|
|
|
|
// Finding the real start for this point unless current line starts after
|
|
// <br> 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 = GetPreviousEditableHTMLNodeInBlock(point);
|
|
!nearContent && !point.IsContainerHTMLElement(nsGkAtoms::body) &&
|
|
point.GetContainer()->GetParentNode();
|
|
nearContent = GetPreviousEditableHTMLNodeInBlock(point)) {
|
|
// 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 `<blockquote>` and starts from first child of
|
|
// `<blockquote>`.
|
|
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.
|
|
// XXX Here is too slow. Let's cache active editing host first, then,
|
|
// compair with container of the point when we climb up the tree.
|
|
bool blockLevelAction =
|
|
aEditSubAction == EditSubAction::eIndent ||
|
|
aEditSubAction == EditSubAction::eOutdent ||
|
|
aEditSubAction == EditSubAction::eSetOrClearAlignment ||
|
|
aEditSubAction == EditSubAction::eCreateOrRemoveBlock;
|
|
if (!IsDescendantOfEditorRoot(point.GetContainer()->GetParentNode()) &&
|
|
(blockLevelAction || !IsDescendantOfEditorRoot(point.GetContainer()))) {
|
|
break;
|
|
}
|
|
|
|
point.Set(point.GetContainer());
|
|
}
|
|
return point;
|
|
}
|
|
|
|
template <typename PT, typename RT>
|
|
EditorDOMPoint HTMLEditor::GetCurrentHardLineEndPoint(
|
|
const RangeBoundaryBase<PT, RT>& aPoint) const {
|
|
if (NS_WARN_IF(!aPoint.IsSet())) {
|
|
return EditorDOMPoint();
|
|
}
|
|
|
|
EditorDOMPoint point(aPoint);
|
|
// 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 end of the text node?
|
|
return point;
|
|
}
|
|
// 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 <br> from
|
|
// us, and that are enclosed in the same block.
|
|
// XXX Currently, we stop block-extending when finding visible <br> 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 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:
|
|
// * <div contenteditable>foo[]<b contenteditable="false">bar</b></div>
|
|
// * <div contenteditable>foo[]<b>bar</b></div>
|
|
// * <div contenteditable>foo[]<b contenteditable="false">bar</b>baz</div>
|
|
// Only in the first case, after the caret position isn't wrapped with
|
|
// new <div> element.
|
|
for (nsIContent* nextEditableContent = GetNextEditableHTMLNodeInBlock(point);
|
|
nextEditableContent &&
|
|
!HTMLEditUtils::IsBlockElement(*nextEditableContent) &&
|
|
nextEditableContent->GetParent();
|
|
nextEditableContent = GetNextEditableHTMLNodeInBlock(point)) {
|
|
point.SetAfter(nextEditableContent);
|
|
if (NS_WARN_IF(!point.IsSet())) {
|
|
break;
|
|
}
|
|
if (IsVisibleBRElement(nextEditableContent)) {
|
|
break;
|
|
}
|
|
|
|
// Check for newlines in pre-formatted text nodes.
|
|
if (nextEditableContent->IsText() &&
|
|
EditorUtils::IsContentPreformatted(*nextEditableContent)) {
|
|
nsAutoString textContent;
|
|
nextEditableContent->GetAsText()->GetData(textContent);
|
|
int32_t newlinePos = textContent.FindChar(nsCRT::LF);
|
|
if (newlinePos >= 0) {
|
|
if (static_cast<uint32_t>(newlinePos) + 1 == textContent.Length()) {
|
|
// No need for special processing if the newline is at the end.
|
|
break;
|
|
}
|
|
return EditorDOMPoint(nextEditableContent, newlinePos + 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Finding the real end for this point unless current line ends with a <br>
|
|
// 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 = GetNextEditableHTMLNodeInBlock(point);
|
|
!nearContent && !point.IsContainerHTMLElement(nsGkAtoms::body) &&
|
|
point.GetContainer()->GetParentNode();
|
|
nearContent = GetNextEditableHTMLNodeInBlock(point)) {
|
|
// 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.
|
|
// XXX Here is too slow. Let's cache active editing host first, then,
|
|
// compair with container of the point when we climb up the tree.
|
|
if (!IsDescendantOfEditorRoot(point.GetContainer()) &&
|
|
!IsDescendantOfEditorRoot(point.GetContainer()->GetParentNode())) {
|
|
break;
|
|
}
|
|
|
|
point.SetAfter(point.GetContainer());
|
|
if (NS_WARN_IF(!point.IsSet())) {
|
|
break;
|
|
}
|
|
}
|
|
return point;
|
|
}
|
|
|
|
void HTMLEditor::GetSelectionRangesExtendedToIncludeAdjuscentWhiteSpaces(
|
|
nsTArray<RefPtr<nsRange>>& aOutArrayOfRanges) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aOutArrayOfRanges.IsEmpty());
|
|
|
|
aOutArrayOfRanges.SetCapacity(SelectionRefPtr()->RangeCount());
|
|
for (uint32_t i = 0; i < SelectionRefPtr()->RangeCount(); i++) {
|
|
const nsRange* selectionRange = SelectionRefPtr()->GetRangeAt(i);
|
|
MOZ_ASSERT(selectionRange);
|
|
|
|
RefPtr<nsRange> extendedRange =
|
|
CreateRangeIncludingAdjuscentWhiteSpaces(*selectionRange);
|
|
if (!extendedRange) {
|
|
extendedRange = selectionRange->CloneRange();
|
|
}
|
|
|
|
aOutArrayOfRanges.AppendElement(extendedRange);
|
|
}
|
|
}
|
|
void HTMLEditor::GetSelectionRangesExtendedToHardLineStartAndEnd(
|
|
nsTArray<RefPtr<nsRange>>& aOutArrayOfRanges,
|
|
EditSubAction aEditSubAction) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aOutArrayOfRanges.IsEmpty());
|
|
|
|
aOutArrayOfRanges.SetCapacity(SelectionRefPtr()->RangeCount());
|
|
for (uint32_t i = 0; i < SelectionRefPtr()->RangeCount(); i++) {
|
|
// Make a new adjusted range to represent the appropriate block content.
|
|
// The basic idea is to push out the range endpoints to truly enclose the
|
|
// blocks that we will affect. This call alters opRange.
|
|
nsRange* selectionRange = SelectionRefPtr()->GetRangeAt(i);
|
|
MOZ_ASSERT(selectionRange);
|
|
|
|
RefPtr<nsRange> extendedRange = CreateRangeExtendedToHardLineStartAndEnd(
|
|
*selectionRange, aEditSubAction);
|
|
if (!extendedRange) {
|
|
extendedRange = selectionRange->CloneRange();
|
|
}
|
|
|
|
aOutArrayOfRanges.AppendElement(extendedRange);
|
|
}
|
|
}
|
|
|
|
template <typename SPT, typename SRT, typename EPT, typename ERT>
|
|
void HTMLEditor::SelectBRElementIfCollapsedInEmptyBlock(
|
|
RangeBoundaryBase<SPT, SRT>& aStartRef,
|
|
RangeBoundaryBase<EPT, ERT>& aEndRef) const {
|
|
// MOOSE major hack:
|
|
// The GetWhiteSpaceEndPoint(), GetCurrentHardLineStartPoint() and
|
|
// GetCurrentHardLineEndPoint() don't really do the right thing for
|
|
// collapsed ranges inside block elements that contain nothing but a solo
|
|
// <br>. It's easier/ to put a workaround here than to revamp them. :-(
|
|
// XXX This sounds odd in the cases using `GetWhiteSpaceEndPoint()`. Don't
|
|
// we hack something in the edit sub-action handlers?
|
|
if (aStartRef != aEndRef) {
|
|
return;
|
|
}
|
|
|
|
if (!aStartRef.Container()->IsContent()) {
|
|
return;
|
|
}
|
|
|
|
Element* blockElement = HTMLEditUtils::GetInclusiveAncestorBlockElement(
|
|
*aStartRef.Container()->AsContent());
|
|
if (!blockElement) {
|
|
return;
|
|
}
|
|
|
|
Element* editingHost = GetActiveEditingHost();
|
|
if (NS_WARN_IF(!editingHost)) {
|
|
return;
|
|
}
|
|
|
|
// Make sure we don't go higher than our root element in the content tree
|
|
if (editingHost->IsInclusiveDescendantOf(blockElement)) {
|
|
return;
|
|
}
|
|
|
|
if (IsEmptyNode(*blockElement, true, false)) {
|
|
aStartRef = {blockElement, 0u};
|
|
aEndRef = {blockElement, blockElement->Length()};
|
|
}
|
|
}
|
|
|
|
already_AddRefed<nsRange> HTMLEditor::CreateRangeIncludingAdjuscentWhiteSpaces(
|
|
const AbstractRange& aAbstractRange) {
|
|
if (!aAbstractRange.IsPositioned()) {
|
|
return nullptr;
|
|
}
|
|
return CreateRangeIncludingAdjuscentWhiteSpaces(aAbstractRange.StartRef(),
|
|
aAbstractRange.EndRef());
|
|
}
|
|
|
|
template <typename SPT, typename SRT, typename EPT, typename ERT>
|
|
already_AddRefed<nsRange> HTMLEditor::CreateRangeIncludingAdjuscentWhiteSpaces(
|
|
const RangeBoundaryBase<SPT, SRT>& aStartRef,
|
|
const RangeBoundaryBase<EPT, ERT>& aEndRef) {
|
|
if (NS_WARN_IF(!aStartRef.IsSet()) || NS_WARN_IF(!aEndRef.IsSet())) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (!aStartRef.Container()->IsContent() ||
|
|
!aEndRef.Container()->IsContent()) {
|
|
return nullptr;
|
|
}
|
|
|
|
RangeBoundaryBase<SPT, SRT> startRef(aStartRef);
|
|
RangeBoundaryBase<EPT, ERT> endRef(aEndRef);
|
|
SelectBRElementIfCollapsedInEmptyBlock(startRef, endRef);
|
|
|
|
// For text actions, we want to look backwards (or forwards, as
|
|
// appropriate) for additional white-space or nbsp's. We may have to act
|
|
// on these later even though they are outside of the initial selection.
|
|
// Even if they are in another node!
|
|
// XXX Although the comment mentioned that this may scan other text nodes,
|
|
// GetWhiteSpaceEndPoint() scans only in given container node.
|
|
// XXX Looks like that we should make GetWhiteSpaceEndPoint() be a
|
|
// instance method and stop scanning white-spaces when it reaches
|
|
// active editing host.
|
|
EditorDOMPoint startPoint = HTMLEditor::GetWhiteSpaceEndPoint(
|
|
startRef, HTMLEditor::ScanDirection::Backward);
|
|
if (!IsDescendantOfEditorRoot(
|
|
EditorBase::GetNodeAtRangeOffsetPoint(startPoint))) {
|
|
return nullptr;
|
|
}
|
|
EditorDOMPoint endPoint = HTMLEditor::GetWhiteSpaceEndPoint(
|
|
endRef, HTMLEditor::ScanDirection::Forward);
|
|
EditorRawDOMPoint lastRawPoint(endPoint);
|
|
lastRawPoint.RewindOffset();
|
|
if (!IsDescendantOfEditorRoot(
|
|
EditorBase::GetNodeAtRangeOffsetPoint(lastRawPoint))) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<nsRange> range =
|
|
nsRange::Create(startPoint.ToRawRangeBoundary(),
|
|
endPoint.ToRawRangeBoundary(), IgnoreErrors());
|
|
NS_WARNING_ASSERTION(range, "nsRange::Create() failed");
|
|
return range.forget();
|
|
}
|
|
|
|
already_AddRefed<nsRange> HTMLEditor::CreateRangeExtendedToHardLineStartAndEnd(
|
|
const AbstractRange& aAbstractRange, EditSubAction aEditSubAction) const {
|
|
if (!aAbstractRange.IsPositioned()) {
|
|
return nullptr;
|
|
}
|
|
return CreateRangeExtendedToHardLineStartAndEnd(
|
|
aAbstractRange.StartRef(), aAbstractRange.EndRef(), aEditSubAction);
|
|
}
|
|
|
|
template <typename SPT, typename SRT, typename EPT, typename ERT>
|
|
already_AddRefed<nsRange> HTMLEditor::CreateRangeExtendedToHardLineStartAndEnd(
|
|
const RangeBoundaryBase<SPT, SRT>& aStartRef,
|
|
const RangeBoundaryBase<EPT, ERT>& aEndRef,
|
|
EditSubAction aEditSubAction) const {
|
|
if (NS_WARN_IF(!aStartRef.IsSet()) || NS_WARN_IF(!aEndRef.IsSet())) {
|
|
return nullptr;
|
|
}
|
|
|
|
RangeBoundaryBase<SPT, SRT> startRef(aStartRef);
|
|
RangeBoundaryBase<EPT, ERT> endRef(aEndRef);
|
|
SelectBRElementIfCollapsedInEmptyBlock(startRef, endRef);
|
|
|
|
// 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.
|
|
|
|
EditorDOMPoint startPoint =
|
|
GetCurrentHardLineStartPoint(startRef, aEditSubAction);
|
|
// XXX GetCurrentHardLineStartPoint() may return point of editing
|
|
// host. Perhaps, we should change it and stop checking it here
|
|
// since this check may be expensive.
|
|
if (!IsDescendantOfEditorRoot(
|
|
EditorBase::GetNodeAtRangeOffsetPoint(startPoint))) {
|
|
return nullptr;
|
|
}
|
|
EditorDOMPoint endPoint = GetCurrentHardLineEndPoint(endRef);
|
|
EditorRawDOMPoint lastRawPoint(endPoint);
|
|
lastRawPoint.RewindOffset();
|
|
// XXX GetCurrentHardLineEndPoint() may return point of editing host.
|
|
// Perhaps, we should change it and stop checking it here since this
|
|
// check may be expensive.
|
|
if (!IsDescendantOfEditorRoot(
|
|
EditorBase::GetNodeAtRangeOffsetPoint(lastRawPoint))) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<nsRange> range =
|
|
nsRange::Create(startPoint.ToRawRangeBoundary(),
|
|
endPoint.ToRawRangeBoundary(), IgnoreErrors());
|
|
NS_WARNING_ASSERTION(range, "nsRange::Create() failed");
|
|
return range.forget();
|
|
}
|
|
|
|
nsresult HTMLEditor::SplitInlinesAndCollectEditTargetNodes(
|
|
nsTArray<RefPtr<nsRange>>& aArrayOfRanges,
|
|
nsTArray<OwningNonNull<nsIContent>>& aOutArrayOfContents,
|
|
EditSubAction aEditSubAction,
|
|
CollectNonEditableNodes aCollectNonEditableNodes) {
|
|
nsresult rv = SplitTextNodesAtRangeEnd(aArrayOfRanges);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::SplitTextNodesAtRangeEnd() failed");
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = SplitParentInlineElementsAtRangeEdges(aArrayOfRanges);
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::SplitParentInlineElementsAtRangeEdges() failed");
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = CollectEditTargetNodes(aArrayOfRanges, aOutArrayOfContents,
|
|
aEditSubAction, aCollectNonEditableNodes);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollectEditTargetNodes() failed");
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = MaybeSplitElementsAtEveryBRElement(aOutArrayOfContents, aEditSubAction);
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::MaybeSplitElementsAtEveryBRElement() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::SplitTextNodesAtRangeEnd(
|
|
nsTArray<RefPtr<nsRange>>& aArrayOfRanges) {
|
|
// 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.
|
|
ErrorResult error;
|
|
IgnoredErrorResult ignoredError;
|
|
for (RefPtr<nsRange>& range : aArrayOfRanges) {
|
|
EditorDOMPoint atEnd(range->EndRef());
|
|
if (NS_WARN_IF(!atEnd.IsSet()) || !atEnd.IsInTextNode()) {
|
|
continue;
|
|
}
|
|
|
|
if (!atEnd.IsStartOfContainer() && !atEnd.IsEndOfContainer()) {
|
|
// Split the text node.
|
|
nsCOMPtr<nsIContent> newLeftNode = SplitNodeWithTransaction(atEnd, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error = NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (error.Failed()) {
|
|
NS_WARNING_ASSERTION(error.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED),
|
|
"HTMLEditor::SplitNodeWithTransaction() failed");
|
|
return error.StealNSResult();
|
|
}
|
|
|
|
// Correct the range.
|
|
// The new end parent becomes the parent node of the text.
|
|
EditorRawDOMPoint atContainerOfSplitNode(atEnd.GetContainer());
|
|
MOZ_ASSERT(!range->IsInSelection());
|
|
range->SetEnd(atContainerOfSplitNode, ignoredError);
|
|
NS_WARNING_ASSERTION(!ignoredError.Failed(),
|
|
"nsRange::SetEnd() failed, but ignored");
|
|
ignoredError.SuppressException();
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::SplitParentInlineElementsAtRangeEdges(
|
|
nsTArray<RefPtr<nsRange>>& aArrayOfRanges) {
|
|
nsTArray<OwningNonNull<RangeItem>> rangeItemArray;
|
|
rangeItemArray.AppendElements(aArrayOfRanges.Length());
|
|
|
|
// First register ranges for special editor gravity
|
|
for (auto& rangeItem : rangeItemArray) {
|
|
rangeItem = new RangeItem();
|
|
rangeItem->StoreRange(*aArrayOfRanges[0]);
|
|
RangeUpdaterRef().RegisterRangeItem(*rangeItem);
|
|
aArrayOfRanges.RemoveElementAt(0);
|
|
}
|
|
// Now bust up inlines.
|
|
nsresult rv = NS_OK;
|
|
for (auto& item : Reversed(rangeItemArray)) {
|
|
// MOZ_KnownLive because 'rangeItemArray' is guaranteed to keep it alive.
|
|
rv = SplitParentInlineElementsAtRangeEdges(MOZ_KnownLive(*item));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::SplitParentInlineElementsAtRangeEdges() failed");
|
|
break;
|
|
}
|
|
}
|
|
// Then unregister the ranges
|
|
for (auto& item : rangeItemArray) {
|
|
RangeUpdaterRef().DropRangeItem(item);
|
|
RefPtr<nsRange> range = item->GetRange();
|
|
if (range) {
|
|
aArrayOfRanges.AppendElement(range);
|
|
}
|
|
}
|
|
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::CollectEditTargetNodes(
|
|
nsTArray<RefPtr<nsRange>>& aArrayOfRanges,
|
|
nsTArray<OwningNonNull<nsIContent>>& aOutArrayOfContents,
|
|
EditSubAction aEditSubAction,
|
|
CollectNonEditableNodes aCollectNonEditableNodes) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
// Gather up a list of all the nodes
|
|
for (auto& range : aArrayOfRanges) {
|
|
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<OwningNonNull<nsIContent>, 24> arrayOfTopChildren;
|
|
iter.AppendNodesToArray(
|
|
+[](nsINode& aNode, void* aArray) -> bool {
|
|
MOZ_ASSERT(aArray);
|
|
return !static_cast<nsTArray<OwningNonNull<nsIContent>>*>(aArray)
|
|
->Contains(&aNode);
|
|
},
|
|
arrayOfTopChildren, &aOutArrayOfContents);
|
|
aOutArrayOfContents.AppendElements(std::move(arrayOfTopChildren));
|
|
}
|
|
if (aCollectNonEditableNodes == CollectNonEditableNodes::No) {
|
|
for (size_t i = aOutArrayOfContents.Length(); i > 0; --i) {
|
|
if (!EditorUtils::IsEditableContent(aOutArrayOfContents[i - 1],
|
|
EditorType::HTML)) {
|
|
aOutArrayOfContents.RemoveElementAt(i - 1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
switch (aEditSubAction) {
|
|
case EditSubAction::eCreateOrRemoveBlock:
|
|
// Certain operations should not act on li's and td's, but rather inside
|
|
// them. Alter the list as needed.
|
|
for (int32_t i = aOutArrayOfContents.Length() - 1; i >= 0; i--) {
|
|
OwningNonNull<nsIContent> content = aOutArrayOfContents[i];
|
|
if (HTMLEditUtils::IsListItem(content)) {
|
|
aOutArrayOfContents.RemoveElementAt(i);
|
|
CollectChildren(*content, aOutArrayOfContents, i,
|
|
CollectListChildren::Yes, CollectTableChildren::Yes,
|
|
aCollectNonEditableNodes);
|
|
}
|
|
}
|
|
// Empty text node shouldn't be selected if unnecessary
|
|
for (int32_t i = aOutArrayOfContents.Length() - 1; i >= 0; i--) {
|
|
if (Text* text = aOutArrayOfContents[i]->GetAsText()) {
|
|
// Don't select empty text except to empty block
|
|
if (!IsVisibleTextNode(*text)) {
|
|
aOutArrayOfContents.RemoveElementAt(i);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case EditSubAction::eCreateOrChangeList: {
|
|
for (size_t i = aOutArrayOfContents.Length(); i > 0; i--) {
|
|
// 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 `<table>`, we need to make
|
|
// lists in each selected table-cells.
|
|
OwningNonNull<nsIContent> content = aOutArrayOfContents[i - 1];
|
|
if (HTMLEditUtils::IsAnyTableElementButNotTable(content)) {
|
|
// XXX aCollectNonEditableNodes is ignored here. Maybe a bug.
|
|
aOutArrayOfContents.RemoveElementAt(i - 1);
|
|
CollectChildren(content, aOutArrayOfContents, i - 1,
|
|
CollectListChildren::No, CollectTableChildren::Yes,
|
|
CollectNonEditableNodes::Yes);
|
|
}
|
|
}
|
|
// If there is only one node in the array, and it is a `<div>`,
|
|
// `<blockquote>` or a list element, then look inside of it until we
|
|
// find inner list or content.
|
|
if (aOutArrayOfContents.Length() != 1) {
|
|
break;
|
|
}
|
|
Element* deepestDivBlockquoteOrListElement =
|
|
GetDeepestEditableOnlyChildDivBlockquoteOrListElement(
|
|
aOutArrayOfContents[0]);
|
|
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.
|
|
CollectChildren(*deepestDivBlockquoteOrListElement, aOutArrayOfContents,
|
|
0, CollectListChildren::No, CollectTableChildren::No,
|
|
CollectNonEditableNodes::Yes);
|
|
break;
|
|
}
|
|
aOutArrayOfContents.ReplaceElementAt(
|
|
0, OwningNonNull<nsIContent>(*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
|
|
for (int32_t i = aOutArrayOfContents.Length() - 1; i >= 0; i--) {
|
|
OwningNonNull<nsIContent> content = aOutArrayOfContents[i];
|
|
if (HTMLEditUtils::IsAnyTableElementButNotTable(content)) {
|
|
aOutArrayOfContents.RemoveElementAt(i);
|
|
CollectChildren(*content, aOutArrayOfContents, i,
|
|
CollectListChildren::Yes, CollectTableChildren::Yes,
|
|
aCollectNonEditableNodes);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// Outdent should look inside of divs.
|
|
if (aEditSubAction == EditSubAction::eOutdent && !IsCSSEnabled()) {
|
|
for (int32_t i = aOutArrayOfContents.Length() - 1; i >= 0; i--) {
|
|
OwningNonNull<nsIContent> content = aOutArrayOfContents[i];
|
|
if (content->IsHTMLElement(nsGkAtoms::div)) {
|
|
aOutArrayOfContents.RemoveElementAt(i);
|
|
CollectChildren(*content, aOutArrayOfContents, i,
|
|
CollectListChildren::No, CollectTableChildren::No,
|
|
aCollectNonEditableNodes);
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::MaybeSplitElementsAtEveryBRElement(
|
|
nsTArray<OwningNonNull<nsIContent>>& aArrayOfContents,
|
|
EditSubAction aEditSubAction) {
|
|
// Post-process the list to break up inline containers that contain br's, but
|
|
// only for operations that might care, like making lists or paragraphs
|
|
switch (aEditSubAction) {
|
|
case EditSubAction::eCreateOrRemoveBlock:
|
|
case EditSubAction::eMergeBlockContents:
|
|
case EditSubAction::eCreateOrChangeList:
|
|
case EditSubAction::eSetOrClearAlignment:
|
|
case EditSubAction::eSetPositionToAbsolute:
|
|
case EditSubAction::eIndent:
|
|
case EditSubAction::eOutdent:
|
|
for (int32_t i = aArrayOfContents.Length() - 1; i >= 0; i--) {
|
|
OwningNonNull<nsIContent>& content = aArrayOfContents[i];
|
|
if (HTMLEditUtils::IsInlineElement(content) &&
|
|
HTMLEditUtils::IsContainerNode(content) && !content->IsText()) {
|
|
AutoTArray<OwningNonNull<nsIContent>, 24> arrayOfInlineContents;
|
|
// MOZ_KnownLive because 'aArrayOfContents' is guaranteed to keep it
|
|
// alive.
|
|
nsresult rv = SplitElementsAtEveryBRElement(MOZ_KnownLive(content),
|
|
arrayOfInlineContents);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::SplitElementsAtEveryBRElement() failed");
|
|
return rv;
|
|
}
|
|
|
|
// Put these nodes in aArrayOfContents, replacing the current node
|
|
aArrayOfContents.RemoveElementAt(i);
|
|
aArrayOfContents.InsertElementsAt(i, arrayOfInlineContents);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
default:
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
Element* HTMLEditor::GetParentListElementAtSelection() const {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(!IsSelectionRangeContainerNotContent());
|
|
|
|
for (uint32_t i = 0; i < SelectionRefPtr()->RangeCount(); ++i) {
|
|
nsRange* range = SelectionRefPtr()->GetRangeAt(i);
|
|
for (nsINode* parent = range->GetClosestCommonInclusiveAncestor(); parent;
|
|
parent = parent->GetParentNode()) {
|
|
if (HTMLEditUtils::IsAnyListElement(parent)) {
|
|
return parent->AsElement();
|
|
}
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
Element* HTMLEditor::GetDeepestEditableOnlyChildDivBlockquoteOrListElement(
|
|
nsINode& aNode) {
|
|
if (!aNode.IsElement()) {
|
|
return nullptr;
|
|
}
|
|
// XXX If aNode is non-editable, shouldn't we return nullptr here?
|
|
Element* parentElement = nullptr;
|
|
for (nsIContent* content = aNode.AsContent();
|
|
content && content->IsElement() &&
|
|
(content->IsAnyOfHTMLElements(nsGkAtoms::div, nsGkAtoms::blockquote) ||
|
|
HTMLEditUtils::IsAnyListElement(content));
|
|
content = content->GetFirstChild()) {
|
|
if (CountEditableChildren(content) != 1) {
|
|
return content->AsElement();
|
|
}
|
|
parentElement = content->AsElement();
|
|
}
|
|
return parentElement;
|
|
}
|
|
|
|
nsresult HTMLEditor::SplitParentInlineElementsAtRangeEdges(
|
|
RangeItem& aRangeItem) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (!aRangeItem.IsCollapsed()) {
|
|
nsCOMPtr<nsIContent> mostAncestorInlineContentAtEnd =
|
|
GetMostAncestorInlineElement(*aRangeItem.mEndContainer);
|
|
|
|
if (mostAncestorInlineContentAtEnd) {
|
|
SplitNodeResult splitEndInlineResult = SplitNodeDeepWithTransaction(
|
|
*mostAncestorInlineContentAtEnd, aRangeItem.EndPoint(),
|
|
SplitAtEdges::eDoNotCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (splitEndInlineResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitNodeDeepWithTransaction(SplitAtEdges::"
|
|
"eDoNotCreateEmptyContainer) failed");
|
|
return splitEndInlineResult.Rv();
|
|
}
|
|
EditorRawDOMPoint splitPointAtEnd(splitEndInlineResult.SplitPoint());
|
|
if (!splitPointAtEnd.IsSet()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitNodeDeepWithTransaction(SplitAtEdges::"
|
|
"eDoNotCreateEmptyContainer) didn't return split point");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
aRangeItem.mEndContainer = splitPointAtEnd.GetContainer();
|
|
aRangeItem.mEndOffset = splitPointAtEnd.Offset();
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIContent> mostAncestorInlineContentAtStart =
|
|
GetMostAncestorInlineElement(*aRangeItem.mStartContainer);
|
|
|
|
if (mostAncestorInlineContentAtStart) {
|
|
SplitNodeResult splitStartInlineResult = SplitNodeDeepWithTransaction(
|
|
*mostAncestorInlineContentAtStart, aRangeItem.StartPoint(),
|
|
SplitAtEdges::eDoNotCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (splitStartInlineResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitNodeDeepWithTransaction(SplitAtEdges::"
|
|
"eDoNotCreateEmptyContainer) failed");
|
|
return splitStartInlineResult.Rv();
|
|
}
|
|
// XXX If we split only here because of collapsed range, we're modifying
|
|
// only start point of aRangeItem. Shouldn't we modify end point here
|
|
// if it's collapsed?
|
|
EditorRawDOMPoint splitPointAtStart(splitStartInlineResult.SplitPoint());
|
|
if (!splitPointAtStart.IsSet()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitNodeDeepWithTransaction(SplitAtEdges::"
|
|
"eDoNotCreateEmptyContainer) didn't return split point");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
aRangeItem.mStartContainer = splitPointAtStart.GetContainer();
|
|
aRangeItem.mStartOffset = splitPointAtStart.Offset();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::SplitElementsAtEveryBRElement(
|
|
nsIContent& aMostAncestorToBeSplit,
|
|
nsTArray<OwningNonNull<nsIContent>>& aOutArrayOfContents) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
// First build up a list of all the break nodes inside the inline container.
|
|
AutoTArray<OwningNonNull<HTMLBRElement>, 24> arrayOfBRElements;
|
|
DOMIterator iter(aMostAncestorToBeSplit);
|
|
iter.AppendAllNodesToArray(arrayOfBRElements);
|
|
|
|
// If there aren't any breaks, just put inNode itself in the array
|
|
if (arrayOfBRElements.IsEmpty()) {
|
|
aOutArrayOfContents.AppendElement(aMostAncestorToBeSplit);
|
|
return NS_OK;
|
|
}
|
|
|
|
// Else we need to bust up aMostAncestorToBeSplit along all the breaks
|
|
nsCOMPtr<nsIContent> nextContent = &aMostAncestorToBeSplit;
|
|
for (OwningNonNull<HTMLBRElement>& brElement : arrayOfBRElements) {
|
|
EditorDOMPoint atBRNode(brElement);
|
|
if (NS_WARN_IF(!atBRNode.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
SplitNodeResult splitNodeResult = SplitNodeDeepWithTransaction(
|
|
*nextContent, atBRNode, SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING("HTMLEditor::SplitNodeDeepWithTransaction() failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
|
|
// Put previous node at the split point.
|
|
if (splitNodeResult.GetPreviousNode()) {
|
|
// Might not be a left node. A break might have been at the very
|
|
// beginning of inline container, in which case
|
|
// SplitNodeDeepWithTransaction() would not actually split anything.
|
|
aOutArrayOfContents.AppendElement(*splitNodeResult.GetPreviousNode());
|
|
}
|
|
|
|
// Move break outside of container and also put in node list
|
|
EditorDOMPoint atNextNode(splitNodeResult.GetNextNode());
|
|
// MOZ_KnownLive because 'arrayOfBRElements' is guaranteed to keep it alive.
|
|
nsresult rv = MoveNodeWithTransaction(MOZ_KnownLive(brElement), atNextNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
aOutArrayOfContents.AppendElement(brElement);
|
|
|
|
nextContent = splitNodeResult.GetNextNode();
|
|
}
|
|
|
|
// Now tack on remaining next node.
|
|
aOutArrayOfContents.AppendElement(*nextContent);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIContent* HTMLEditor::GetMostAncestorInlineElement(nsINode& aNode) const {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (!aNode.IsContent() || HTMLEditUtils::IsBlockElement(*aNode.AsContent())) {
|
|
return nullptr;
|
|
}
|
|
|
|
Element* host = GetActiveEditingHost();
|
|
if (NS_WARN_IF(!host)) {
|
|
return nullptr;
|
|
}
|
|
|
|
// If aNode is the editing host itself, there is no modifiable inline
|
|
// parent.
|
|
if (&aNode == host) {
|
|
return nullptr;
|
|
}
|
|
|
|
// If aNode is outside of the <body> element, we don't support to edit
|
|
// such elements for now.
|
|
// XXX This should be MOZ_ASSERT after fixing bug 1413131 for avoiding
|
|
// calling this expensive method.
|
|
if (NS_WARN_IF(!EditorUtils::IsDescendantOf(aNode, *host))) {
|
|
return nullptr;
|
|
}
|
|
|
|
if (!aNode.GetParent()) {
|
|
return aNode.AsContent();
|
|
}
|
|
|
|
// Looks for the highest inline parent in the editing host.
|
|
nsIContent* topMostInlineContent = aNode.AsContent();
|
|
for (nsIContent* content : aNode.AncestorsOfType<nsIContent>()) {
|
|
if (content == host || !HTMLEditUtils::IsInlineElement(*content)) {
|
|
break;
|
|
}
|
|
topMostInlineContent = content;
|
|
}
|
|
return topMostInlineContent;
|
|
}
|
|
|
|
// static
|
|
void HTMLEditor::MakeTransitionList(
|
|
const nsTArray<OwningNonNull<nsIContent>>& aArrayOfContents,
|
|
nsTArray<bool>& aTransitionArray) {
|
|
nsINode* prevParent = nullptr;
|
|
aTransitionArray.EnsureLengthAtLeast(aArrayOfContents.Length());
|
|
for (uint32_t i = 0; i < aArrayOfContents.Length(); i++) {
|
|
aTransitionArray[i] = aArrayOfContents[i]->GetParentNode() != prevParent;
|
|
prevParent = aArrayOfContents[i]->GetParentNode();
|
|
}
|
|
}
|
|
|
|
Element* HTMLEditor::GetNearestAncestorListItemElement(
|
|
nsIContent& aContent) const {
|
|
// XXX Why don't we test whether aContent is in an editing host?
|
|
if (HTMLEditUtils::IsListItem(&aContent)) {
|
|
return aContent.AsElement();
|
|
}
|
|
|
|
// XXX This loop is too expensive since calling IsDescendantOfEditorRoot()
|
|
// a lot. Rewrite this with caching active editing host and check
|
|
// whether we reach it or not.
|
|
for (Element* parentElement = aContent.GetParentElement();
|
|
parentElement && IsDescendantOfEditorRoot(parentElement) &&
|
|
!HTMLEditUtils::IsAnyTableElement(parentElement);
|
|
parentElement = parentElement->GetParentElement()) {
|
|
if (HTMLEditUtils::IsListItem(parentElement)) {
|
|
return parentElement;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
nsresult HTMLEditor::HandleInsertParagraphInHeadingElement(Element& aHeader,
|
|
nsINode& aNode,
|
|
int32_t aOffset) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
// Remember where the header is
|
|
nsCOMPtr<nsINode> headerParent = aHeader.GetParentNode();
|
|
int32_t offset = headerParent ? headerParent->ComputeIndexOf(&aHeader) : -1;
|
|
|
|
// Get ws code to adjust any ws
|
|
nsCOMPtr<nsINode> node = &aNode;
|
|
nsresult rv = WhiteSpaceVisibilityKeeper::PrepareToSplitAcrossBlocks(
|
|
*this, address_of(node), &aOffset);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"WhiteSpaceVisibilityKeeper::PrepareToSplitAcrossBlocks() failed");
|
|
return rv;
|
|
}
|
|
if (!node->IsContent()) {
|
|
NS_WARNING(
|
|
"WhiteSpaceVisibilityKeeper::PrepareToSplitAcrossBlocks() returned "
|
|
"Document or something non-content node");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Split the header
|
|
SplitNodeResult splitHeaderResult =
|
|
SplitNodeDeepWithTransaction(aHeader, EditorDOMPoint(node, aOffset),
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (splitHeaderResult.Failed()) {
|
|
NS_WARNING("HTMLEditor::SplitNodeDeepWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// If the previous heading of split point is empty, put a padding <br>
|
|
// element for empty last line into it.
|
|
nsCOMPtr<nsIContent> prevItem = GetPriorHTMLSibling(&aHeader);
|
|
if (prevItem) {
|
|
MOZ_DIAGNOSTIC_ASSERT(HTMLEditUtils::IsHeader(*prevItem));
|
|
if (IsEmptyNode(*prevItem)) {
|
|
CreateElementResult createPaddingBRResult =
|
|
InsertPaddingBRElementForEmptyLastLineWithTransaction(
|
|
EditorDOMPoint(prevItem, 0));
|
|
if (createPaddingBRResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::InsertPaddingBRElementForEmptyLastLineWithTransaction("
|
|
") failed");
|
|
return createPaddingBRResult.Rv();
|
|
}
|
|
}
|
|
}
|
|
|
|
// If the new (righthand) header node is empty, delete it
|
|
if (IsEmptyBlockElement(aHeader, IgnoreSingleBR::Yes)) {
|
|
nsresult rv = DeleteNodeWithTransaction(aHeader);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
// Layout tells the caret to blink in a weird place if we don't place a
|
|
// break after the header.
|
|
nsCOMPtr<nsIContent> sibling;
|
|
if (aHeader.GetNextSibling()) {
|
|
sibling = GetNextHTMLSibling(aHeader.GetNextSibling());
|
|
}
|
|
if (!sibling || !sibling->IsHTMLElement(nsGkAtoms::br)) {
|
|
TopLevelEditSubActionDataRef().mCachedInlineStyles->Clear();
|
|
mTypeInState->ClearAllProps();
|
|
|
|
// Create a paragraph
|
|
nsStaticAtom& paraAtom = DefaultParagraphSeparatorTagName();
|
|
// We want a wrapper element even if we separate with <br>
|
|
EditorDOMPoint nextToHeader(headerParent, offset + 1);
|
|
RefPtr<Element> pOrDivElement = CreateNodeWithTransaction(
|
|
¶Atom == nsGkAtoms::br ? *nsGkAtoms::p : MOZ_KnownLive(paraAtom),
|
|
nextToHeader);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!pOrDivElement) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Append a <br> to it
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(EditorDOMPoint(pOrDivElement, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!brElement) {
|
|
NS_WARNING("HTMLEditor::InsertBRElementWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Set selection to before the break
|
|
nsresult rv = CollapseSelectionToStartOf(*pOrDivElement);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed");
|
|
return rv;
|
|
}
|
|
|
|
EditorRawDOMPoint afterSibling(EditorRawDOMPoint::After(*sibling));
|
|
if (NS_WARN_IF(!afterSibling.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// Put selection after break
|
|
rv = CollapseSelectionTo(afterSibling);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed");
|
|
return rv;
|
|
}
|
|
|
|
// Put selection at front of righthand heading
|
|
rv = CollapseSelectionToStartOf(aHeader);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed");
|
|
return rv;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleInsertParagraphInParagraph(
|
|
Element& aParentDivOrP) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
EditorDOMPoint atStartOfSelection(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
MOZ_ASSERT(atStartOfSelection.IsSetAndValid());
|
|
|
|
// We shouldn't create new anchor element which has non-empty href unless
|
|
// splitting middle of it because we assume that users don't want to create
|
|
// *same* anchor element across two or more paragraphs in most cases.
|
|
// So, adjust selection start if it's edge of anchor element(s).
|
|
// XXX We don't support white-space collapsing in these cases since it needs
|
|
// some additional work with WhiteSpaceVisibilityKeeper but it's not usual
|
|
// case. E.g., |<a href="foo"><b>foo []</b> </a>|
|
|
if (atStartOfSelection.IsStartOfContainer()) {
|
|
for (nsIContent* container = atStartOfSelection.GetContainerAsContent();
|
|
container && container != &aParentDivOrP;
|
|
container = container->GetParent()) {
|
|
if (HTMLEditUtils::IsLink(container)) {
|
|
// Found link should be only in right node. So, we shouldn't split
|
|
// it.
|
|
atStartOfSelection.Set(container);
|
|
// Even if we found an anchor element, don't break because DOM API
|
|
// allows to nest anchor elements.
|
|
}
|
|
// If the container is middle of its parent, stop adjusting split point.
|
|
if (container->GetPreviousSibling()) {
|
|
// XXX Should we check if previous sibling is visible content?
|
|
// E.g., should we ignore comment node, invisible <br> element?
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
// We also need to check if selection is at invisible <br> element at end
|
|
// of an <a href="foo"> element because editor inserts a <br> element when
|
|
// user types Enter key after a white-space which is at middle of
|
|
// <a href="foo"> element and when setting selection at end of the element,
|
|
// selection becomes referring the <br> element. We may need to change this
|
|
// behavior later if it'd be standardized.
|
|
else if (atStartOfSelection.IsEndOfContainer() ||
|
|
atStartOfSelection.IsBRElementAtEndOfContainer()) {
|
|
// If there are 2 <br> elements, the first <br> element is visible. E.g.,
|
|
// |<a href="foo"><b>boo[]<br></b><br></a>|, we should split the <a>
|
|
// element. Otherwise, E.g., |<a href="foo"><b>boo[]<br></b></a>|,
|
|
// we should not split the <a> element and ignore inline elements in it.
|
|
bool foundBRElement = atStartOfSelection.IsBRElementAtEndOfContainer();
|
|
for (nsIContent* container = atStartOfSelection.GetContainerAsContent();
|
|
container && container != &aParentDivOrP;
|
|
container = container->GetParent()) {
|
|
if (HTMLEditUtils::IsLink(container)) {
|
|
// Found link should be only in left node. So, we shouldn't split it.
|
|
atStartOfSelection.SetAfter(container);
|
|
// Even if we found an anchor element, don't break because DOM API
|
|
// allows to nest anchor elements.
|
|
}
|
|
// If the container is middle of its parent, stop adjusting split point.
|
|
if (nsIContent* nextSibling = container->GetNextSibling()) {
|
|
if (foundBRElement) {
|
|
// If we've already found a <br> element, we assume found node is
|
|
// visible <br> or something other node.
|
|
// XXX Should we check if non-text data node like comment?
|
|
break;
|
|
}
|
|
|
|
// XXX Should we check if non-text data node like comment?
|
|
if (!nextSibling->IsHTMLElement(nsGkAtoms::br)) {
|
|
break;
|
|
}
|
|
foundBRElement = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool doesCRCreateNewP = GetReturnInParagraphCreatesNewParagraph();
|
|
bool splitAfterNewBR = false;
|
|
nsCOMPtr<nsIContent> brContent;
|
|
|
|
EditorDOMPoint pointToSplitParentDivOrP(atStartOfSelection);
|
|
|
|
EditorDOMPoint pointToInsertBR;
|
|
if (doesCRCreateNewP && atStartOfSelection.GetContainer() == &aParentDivOrP) {
|
|
// We are at the edges of the block, so, we don't need to create new <br>.
|
|
brContent = nullptr;
|
|
} else if (atStartOfSelection.IsInTextNode()) {
|
|
// at beginning of text node?
|
|
if (atStartOfSelection.IsStartOfContainer()) {
|
|
// is there a BR prior to it?
|
|
brContent = GetPriorHTMLSibling(atStartOfSelection.GetContainer());
|
|
if (!brContent || !IsVisibleBRElement(brContent) ||
|
|
EditorUtils::IsPaddingBRElementForEmptyLastLine(*brContent)) {
|
|
pointToInsertBR.Set(atStartOfSelection.GetContainer());
|
|
brContent = nullptr;
|
|
}
|
|
} else if (atStartOfSelection.IsEndOfContainer()) {
|
|
// we're at the end of text node...
|
|
// is there a BR after to it?
|
|
brContent = GetNextHTMLSibling(atStartOfSelection.GetContainer());
|
|
if (!brContent || !IsVisibleBRElement(brContent) ||
|
|
EditorUtils::IsPaddingBRElementForEmptyLastLine(*brContent)) {
|
|
pointToInsertBR.SetAfter(atStartOfSelection.GetContainer());
|
|
NS_WARNING_ASSERTION(
|
|
pointToInsertBR.IsSet(),
|
|
"Failed to set to after the container of selection start");
|
|
brContent = nullptr;
|
|
}
|
|
} else {
|
|
if (doesCRCreateNewP) {
|
|
ErrorResult error;
|
|
nsCOMPtr<nsIContent> newLeftDivOrP =
|
|
SplitNodeWithTransaction(pointToSplitParentDivOrP, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error = NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (error.Failed()) {
|
|
NS_WARNING_ASSERTION(error.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED),
|
|
"HTMLEditor::SplitNodeWithTransaction() failed");
|
|
return EditActionResult(error.StealNSResult());
|
|
}
|
|
pointToSplitParentDivOrP.SetToEndOf(newLeftDivOrP);
|
|
}
|
|
|
|
// We need to put new <br> after the left node if given node was split
|
|
// above.
|
|
pointToInsertBR.Set(pointToSplitParentDivOrP.GetContainer());
|
|
DebugOnly<bool> advanced = pointToInsertBR.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset to after the container "
|
|
"of selection start");
|
|
}
|
|
} else {
|
|
// not in a text node.
|
|
// is there a BR prior to it?
|
|
nsCOMPtr<nsIContent> nearContent =
|
|
GetPreviousEditableHTMLNode(atStartOfSelection);
|
|
if (!nearContent || !IsVisibleBRElement(nearContent) ||
|
|
EditorUtils::IsPaddingBRElementForEmptyLastLine(*nearContent)) {
|
|
// is there a BR after it?
|
|
nearContent = GetNextEditableHTMLNode(atStartOfSelection);
|
|
if (!nearContent || !IsVisibleBRElement(nearContent) ||
|
|
EditorUtils::IsPaddingBRElementForEmptyLastLine(*nearContent)) {
|
|
pointToInsertBR = atStartOfSelection;
|
|
splitAfterNewBR = true;
|
|
}
|
|
}
|
|
if (!pointToInsertBR.IsSet() && nearContent->IsHTMLElement(nsGkAtoms::br)) {
|
|
brContent = nearContent;
|
|
}
|
|
}
|
|
if (pointToInsertBR.IsSet()) {
|
|
// if CR does not create a new P, default to BR creation
|
|
if (NS_WARN_IF(!doesCRCreateNewP)) {
|
|
return EditActionResult(NS_OK);
|
|
}
|
|
|
|
brContent = InsertBRElementWithTransaction(pointToInsertBR);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
brContent,
|
|
"HTMLEditor::InsertBRElementWithTransaction() failed, but ignored");
|
|
if (splitAfterNewBR) {
|
|
// We split the parent after the br we've just inserted.
|
|
pointToSplitParentDivOrP.SetAfter(brContent);
|
|
NS_WARNING_ASSERTION(pointToSplitParentDivOrP.IsSet(),
|
|
"Failed to set after the new <br>");
|
|
}
|
|
}
|
|
EditActionResult result(
|
|
SplitParagraph(aParentDivOrP, pointToSplitParentDivOrP, brContent));
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::SplitParagraph() failed");
|
|
result.MarkAsHandled();
|
|
return result;
|
|
}
|
|
|
|
template <typename PT, typename CT>
|
|
nsresult HTMLEditor::SplitParagraph(
|
|
Element& aParentDivOrP, const EditorDOMPointBase<PT, CT>& aStartOfRightNode,
|
|
nsIContent* aNextBRNode) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
nsCOMPtr<nsINode> selNode = aStartOfRightNode.GetContainer();
|
|
int32_t selOffset = aStartOfRightNode.Offset();
|
|
nsresult rv = WhiteSpaceVisibilityKeeper::PrepareToSplitAcrossBlocks(
|
|
*this, address_of(selNode), &selOffset);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"WhiteSpaceVisibilityKeeper::PrepareToSplitAcrossBlocks() failed");
|
|
return rv;
|
|
}
|
|
if (!selNode->IsContent()) {
|
|
NS_WARNING(
|
|
"WhiteSpaceVisibilityKeeper::PrepareToSplitAcrossBlocks() returned "
|
|
"Document or something non-content node");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Split the paragraph.
|
|
SplitNodeResult splitDivOrPResult = SplitNodeDeepWithTransaction(
|
|
aParentDivOrP, EditorDOMPoint(selNode, selOffset),
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (splitDivOrPResult.Failed()) {
|
|
NS_WARNING("HTMLEditor::SplitNodeDeepWithTransaction() failed");
|
|
return splitDivOrPResult.Rv();
|
|
}
|
|
if (!splitDivOrPResult.DidSplit()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitNodeDeepWithTransaction() didn't split any nodes");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Get rid of the break, if it is visible (otherwise it may be needed to
|
|
// prevent an empty p).
|
|
if (aNextBRNode && IsVisibleBRElement(aNextBRNode)) {
|
|
rv = DeleteNodeWithTransaction(*aNextBRNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// Remove ID attribute on the paragraph from the existing right node.
|
|
rv = RemoveAttributeWithTransaction(aParentDivOrP, *nsGkAtoms::id);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"EditorBase::RemoveAttributeWithTransaction(nsGkAtoms::id) failed");
|
|
return rv;
|
|
}
|
|
|
|
// We need to ensure to both paragraphs visible even if they are empty.
|
|
// However, padding <br> element for empty last line isn't useful in this
|
|
// case because it'll be ignored by PlaintextSerializer. Additionally,
|
|
// it'll be exposed as <br> with Element.innerHTML. Therefore, we can use
|
|
// normal <br> elements for placeholder in this case. Note that Chromium
|
|
// also behaves so.
|
|
if (splitDivOrPResult.GetPreviousNode()->IsElement()) {
|
|
rv = InsertBRElementIfEmptyBlockElement(
|
|
MOZ_KnownLive(*splitDivOrPResult.GetPreviousNode()->AsElement()));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::InsertBRElementIfEmptyBlockElement() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
if (splitDivOrPResult.GetNextNode()->IsElement()) {
|
|
rv = InsertBRElementIfEmptyBlockElement(
|
|
MOZ_KnownLive(*splitDivOrPResult.GetNextNode()->AsElement()));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::InsertBRElementIfEmptyBlockElement() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// selection to beginning of right hand para;
|
|
// look inside any containers that are up front.
|
|
nsCOMPtr<nsIContent> child = HTMLEditUtils::GetFirstLeafChild(
|
|
aParentDivOrP, {LeafNodeType::LeafNodeOrChildBlock});
|
|
if (child && (child->IsText() || HTMLEditUtils::IsContainerNode(*child))) {
|
|
nsresult rv = CollapseSelectionToStartOf(*child);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed, but ignored");
|
|
} else {
|
|
nsresult rv = CollapseSelectionTo(EditorRawDOMPoint(child));
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed, but ignored");
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::HandleInsertParagraphInListItemElement(Element& aListItem,
|
|
nsINode& aNode,
|
|
int32_t aOffset) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(HTMLEditUtils::IsListItem(&aListItem));
|
|
|
|
// Get the item parent and the active editing host.
|
|
RefPtr<Element> host = GetActiveEditingHost();
|
|
|
|
// If we are in an empty item, then we want to pop up out of the list, but
|
|
// only if prefs say it's okay and if the parent isn't the active editing
|
|
// host.
|
|
if (host != aListItem.GetParentElement() &&
|
|
IsEmptyBlockElement(aListItem, IgnoreSingleBR::Yes)) {
|
|
nsCOMPtr<nsIContent> leftListNode = aListItem.GetParent();
|
|
// Are we the last list item in the list?
|
|
if (!IsLastEditableChild(&aListItem)) {
|
|
// We need to split the list!
|
|
EditorDOMPoint atListItem(&aListItem);
|
|
ErrorResult error;
|
|
leftListNode = SplitNodeWithTransaction(atListItem, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error = NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (error.Failed()) {
|
|
NS_WARNING_ASSERTION(error.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED),
|
|
"HTMLEditor::SplitNodeWithTransaction() failed");
|
|
return error.StealNSResult();
|
|
}
|
|
}
|
|
|
|
// Are we in a sublist?
|
|
EditorDOMPoint atNextSiblingOfLeftList(leftListNode);
|
|
DebugOnly<bool> advanced = atNextSiblingOfLeftList.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset after the right list node");
|
|
if (HTMLEditUtils::IsAnyListElement(
|
|
atNextSiblingOfLeftList.GetContainer())) {
|
|
// If so, move item out of this list and into the grandparent list
|
|
nsresult rv = MoveNodeWithTransaction(aListItem, atNextSiblingOfLeftList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
rv = CollapseSelectionToStartOf(aListItem);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed");
|
|
return rv;
|
|
}
|
|
|
|
// Otherwise kill this item
|
|
nsresult rv = DeleteNodeWithTransaction(aListItem);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
// Time to insert a paragraph
|
|
nsStaticAtom& paraAtom = DefaultParagraphSeparatorTagName();
|
|
// We want a wrapper even if we separate with <br>
|
|
RefPtr<Element> pOrDivElement = CreateNodeWithTransaction(
|
|
¶Atom == nsGkAtoms::br ? *nsGkAtoms::p : MOZ_KnownLive(paraAtom),
|
|
atNextSiblingOfLeftList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!pOrDivElement) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Append a <br> to it
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(EditorDOMPoint(pOrDivElement, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!brElement) {
|
|
NS_WARNING("HTMLEditor::InsertBRElementWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Set selection to before the break
|
|
rv = CollapseSelectionToStartOf(*pOrDivElement);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed");
|
|
return rv;
|
|
}
|
|
|
|
// Else we want a new list item at the same list level. Get ws code to
|
|
// adjust any ws.
|
|
nsCOMPtr<nsINode> selNode = &aNode;
|
|
nsresult rv = WhiteSpaceVisibilityKeeper::PrepareToSplitAcrossBlocks(
|
|
*this, address_of(selNode), &aOffset);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"WhiteSpaceVisibilityKeeper::PrepareToSplitAcrossBlocks() failed");
|
|
return rv;
|
|
}
|
|
if (!selNode->IsContent()) {
|
|
NS_WARNING(
|
|
"WhiteSpaceVisibilityKeeper::PrepareToSplitAcrossBlocks() returned "
|
|
"document node or something non-content node");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Now split the list item.
|
|
SplitNodeResult splitListItemResult =
|
|
SplitNodeDeepWithTransaction(aListItem, EditorDOMPoint(selNode, aOffset),
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
splitListItemResult.Succeeded(),
|
|
"HTMLEditor::SplitNodeDeepWithTransaction() failed, but ignored");
|
|
|
|
// Hack: until I can change the damaged doc range code back to being
|
|
// extra-inclusive, I have to manually detect certain list items that may be
|
|
// left empty.
|
|
nsCOMPtr<nsIContent> prevItem = GetPriorHTMLSibling(&aListItem);
|
|
if (prevItem && HTMLEditUtils::IsListItem(prevItem)) {
|
|
if (IsEmptyNode(*prevItem)) {
|
|
CreateElementResult createPaddingBRResult =
|
|
InsertPaddingBRElementForEmptyLastLineWithTransaction(
|
|
EditorDOMPoint(prevItem, 0));
|
|
if (createPaddingBRResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::InsertPaddingBRElementForEmptyLastLineWithTransaction("
|
|
") failed");
|
|
return createPaddingBRResult.Rv();
|
|
}
|
|
} else {
|
|
if (IsEmptyNode(aListItem, true)) {
|
|
if (aListItem.IsAnyOfHTMLElements(nsGkAtoms::dd, nsGkAtoms::dt)) {
|
|
nsCOMPtr<nsINode> list = aListItem.GetParentNode();
|
|
int32_t itemOffset = list ? list->ComputeIndexOf(&aListItem) : -1;
|
|
|
|
nsStaticAtom* nextDefinitionListItemTagName =
|
|
aListItem.IsHTMLElement(nsGkAtoms::dt) ? nsGkAtoms::dd
|
|
: nsGkAtoms::dt;
|
|
MOZ_DIAGNOSTIC_ASSERT(itemOffset != -1);
|
|
EditorDOMPoint atNextListItem(list, aListItem.GetNextSibling(),
|
|
itemOffset + 1);
|
|
RefPtr<Element> newListItem = CreateNodeWithTransaction(
|
|
MOZ_KnownLive(*nextDefinitionListItemTagName), atNextListItem);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!newListItem) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsresult rv = DeleteNodeWithTransaction(aListItem);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
rv = CollapseSelectionToStartOf(*newListItem);
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed");
|
|
return rv;
|
|
}
|
|
|
|
RefPtr<Element> brElement;
|
|
nsresult rv = CopyLastEditableChildStylesWithTransaction(
|
|
MOZ_KnownLive(*prevItem->AsElement()), aListItem,
|
|
address_of(brElement));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::CopyLastEditableChildStylesWithTransaction() "
|
|
"failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (brElement) {
|
|
EditorRawDOMPoint atBRNode(brElement);
|
|
if (NS_WARN_IF(!atBRNode.IsSetAndValid())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsresult rv = CollapseSelectionTo(atBRNode);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed");
|
|
return rv;
|
|
}
|
|
} else {
|
|
WSScanResult forwardScanFromStartOfListItemResult =
|
|
WSRunScanner::ScanNextVisibleNodeOrBlockBoundary(
|
|
*this, EditorRawDOMPoint(&aListItem, 0));
|
|
if (forwardScanFromStartOfListItemResult.Failed()) {
|
|
NS_WARNING(
|
|
"WSRunScanner::ScanNextVisibleNodeOrBlockBoundary() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (forwardScanFromStartOfListItemResult.ReachedSpecialContent() ||
|
|
forwardScanFromStartOfListItemResult.ReachedBRElement() ||
|
|
forwardScanFromStartOfListItemResult.ReachedHRElement()) {
|
|
EditorRawDOMPoint atFoundElement(
|
|
forwardScanFromStartOfListItemResult.RawPointAtContent());
|
|
if (NS_WARN_IF(!atFoundElement.IsSetAndValid())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsresult rv = CollapseSelectionTo(atFoundElement);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed");
|
|
return rv;
|
|
}
|
|
|
|
// XXX This may be not meaningful position if it reached block element
|
|
// in aListItem.
|
|
nsresult rv = CollapseSelectionTo(
|
|
forwardScanFromStartOfListItemResult.RawPoint());
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
|
|
rv = CollapseSelectionToStartOf(aListItem);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::MoveNodesIntoNewBlockquoteElement(
|
|
nsTArray<OwningNonNull<nsIContent>>& aArrayOfContents) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
// The idea here is to put the nodes into a minimal number of blockquotes.
|
|
// When the user blockquotes something, they expect one blockquote. That
|
|
// may not be possible (for instance, if they have two table cells selected,
|
|
// you need two blockquotes inside the cells).
|
|
RefPtr<Element> curBlock;
|
|
nsCOMPtr<nsINode> prevParent;
|
|
|
|
for (auto& content : aArrayOfContents) {
|
|
// If the node is a table element or list item, dive inside
|
|
if (HTMLEditUtils::IsAnyTableElementButNotTable(content) ||
|
|
HTMLEditUtils::IsListItem(content)) {
|
|
// Forget any previous block
|
|
curBlock = nullptr;
|
|
// Recursion time
|
|
AutoTArray<OwningNonNull<nsIContent>, 24> childContents;
|
|
HTMLEditor::GetChildNodesOf(*content, childContents);
|
|
nsresult rv = MoveNodesIntoNewBlockquoteElement(childContents);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodesIntoNewBlockquoteElement() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// If the node has different parent than previous node, further nodes in a
|
|
// new parent
|
|
if (prevParent) {
|
|
if (prevParent != content->GetParentNode()) {
|
|
// Forget any previous blockquote node we were using
|
|
curBlock = nullptr;
|
|
prevParent = content->GetParentNode();
|
|
}
|
|
} else {
|
|
prevParent = content->GetParentNode();
|
|
}
|
|
|
|
// If no curBlock, make one
|
|
if (!curBlock) {
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(*nsGkAtoms::blockquote,
|
|
EditorDOMPoint(content));
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction(nsGkAtoms:"
|
|
":blockquote) failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
// XXX Perhaps, we should insert the new `<blockquote>` element after
|
|
// moving all nodes into it since the movement does not cause
|
|
// running mutation event listeners.
|
|
curBlock = CreateNodeWithTransaction(*nsGkAtoms::blockquote,
|
|
splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!curBlock) {
|
|
NS_WARNING(
|
|
"EditorBase::CreateNodeWithTransaction(nsGkAtoms::blockquote) "
|
|
"failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = curBlock;
|
|
// note: doesn't matter if we set mNewBlockElement multiple times.
|
|
}
|
|
|
|
// MOZ_KnownLive because 'aArrayOfContents' is guaranteed to/ keep it alive.
|
|
nsresult rv =
|
|
MoveNodeToEndWithTransaction(MOZ_KnownLive(content), *curBlock);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::RemoveBlockContainerElements(
|
|
nsTArray<OwningNonNull<nsIContent>>& aArrayOfContents) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
// Intent of this routine is to be used for converting to/from headers,
|
|
// paragraphs, pre, and address. Those blocks that pretty much just contain
|
|
// inline things...
|
|
RefPtr<Element> blockElement;
|
|
nsCOMPtr<nsIContent> firstContent, lastContent;
|
|
for (auto& content : aArrayOfContents) {
|
|
// If curNode is an <address>, <p>, <hn>, or <pre>, remove it.
|
|
if (HTMLEditUtils::IsFormatNode(content)) {
|
|
// Process any partial progress saved
|
|
if (blockElement) {
|
|
SplitRangeOffFromNodeResult removeMiddleContainerResult =
|
|
SplitRangeOffFromBlockAndRemoveMiddleContainer(
|
|
*blockElement, *firstContent, *lastContent);
|
|
if (removeMiddleContainerResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitRangeOffFromBlockAndRemoveMiddleContainer() "
|
|
"failed");
|
|
return removeMiddleContainerResult.Rv();
|
|
}
|
|
firstContent = lastContent = blockElement = nullptr;
|
|
}
|
|
if (!EditorUtils::IsEditableContent(content, EditorType::HTML)) {
|
|
continue;
|
|
}
|
|
// Remove current block
|
|
nsresult rv = RemoveBlockContainerWithTransaction(
|
|
MOZ_KnownLive(*content->AsElement()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveBlockContainerWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// XXX How about, <th>, <thead>, <tfoot>, <dt>, <dl>?
|
|
if (content->IsAnyOfHTMLElements(
|
|
nsGkAtoms::table, nsGkAtoms::tr, nsGkAtoms::tbody, nsGkAtoms::td,
|
|
nsGkAtoms::li, nsGkAtoms::blockquote, nsGkAtoms::div) ||
|
|
HTMLEditUtils::IsAnyListElement(content)) {
|
|
// Process any partial progress saved
|
|
if (blockElement) {
|
|
SplitRangeOffFromNodeResult removeMiddleContainerResult =
|
|
SplitRangeOffFromBlockAndRemoveMiddleContainer(
|
|
*blockElement, *firstContent, *lastContent);
|
|
if (removeMiddleContainerResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitRangeOffFromBlockAndRemoveMiddleContainer() "
|
|
"failed");
|
|
return removeMiddleContainerResult.Rv();
|
|
}
|
|
firstContent = lastContent = blockElement = nullptr;
|
|
}
|
|
if (!EditorUtils::IsEditableContent(content, EditorType::HTML)) {
|
|
continue;
|
|
}
|
|
// Recursion time
|
|
AutoTArray<OwningNonNull<nsIContent>, 24> childContents;
|
|
HTMLEditor::GetChildNodesOf(*content, childContents);
|
|
nsresult rv = RemoveBlockContainerElements(childContents);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveBlockContainerElements() failed");
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsInlineElement(content)) {
|
|
if (blockElement) {
|
|
// If so, is this node a descendant?
|
|
if (EditorUtils::IsDescendantOf(*content, *blockElement)) {
|
|
// Then we don't need to do anything different for this node
|
|
lastContent = content;
|
|
continue;
|
|
}
|
|
// Otherwise, we have progressed beyond end of blockElement, so let's
|
|
// handle it now. We need to remove the portion of blockElement that
|
|
// contains [firstContent - lastContent].
|
|
SplitRangeOffFromNodeResult removeMiddleContainerResult =
|
|
SplitRangeOffFromBlockAndRemoveMiddleContainer(
|
|
*blockElement, *firstContent, *lastContent);
|
|
if (removeMiddleContainerResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitRangeOffFromBlockAndRemoveMiddleContainer() "
|
|
"failed");
|
|
return removeMiddleContainerResult.Rv();
|
|
}
|
|
firstContent = lastContent = blockElement = nullptr;
|
|
// Fall out and handle content
|
|
}
|
|
blockElement = HTMLEditUtils::GetAncestorBlockElement(content);
|
|
if (!blockElement || !HTMLEditUtils::IsFormatNode(blockElement) ||
|
|
!EditorUtils::IsEditableContent(*blockElement, EditorType::HTML)) {
|
|
// Not a block kind that we care about.
|
|
blockElement = nullptr;
|
|
} else {
|
|
firstContent = lastContent = content;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (blockElement) {
|
|
// Some node that is already sans block style. Skip over it and process
|
|
// any partial progress saved.
|
|
SplitRangeOffFromNodeResult removeMiddleContainerResult =
|
|
SplitRangeOffFromBlockAndRemoveMiddleContainer(
|
|
*blockElement, *firstContent, *lastContent);
|
|
if (removeMiddleContainerResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitRangeOffFromBlockAndRemoveMiddleContainer() "
|
|
"failed");
|
|
return removeMiddleContainerResult.Rv();
|
|
}
|
|
firstContent = lastContent = blockElement = nullptr;
|
|
continue;
|
|
}
|
|
}
|
|
// Process any partial progress saved
|
|
if (blockElement) {
|
|
SplitRangeOffFromNodeResult removeMiddleContainerResult =
|
|
SplitRangeOffFromBlockAndRemoveMiddleContainer(
|
|
*blockElement, *firstContent, *lastContent);
|
|
if (removeMiddleContainerResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitRangeOffFromBlockAndRemoveMiddleContainer() "
|
|
"failed");
|
|
return removeMiddleContainerResult.Rv();
|
|
}
|
|
firstContent = lastContent = blockElement = nullptr;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::CreateOrChangeBlockContainerElement(
|
|
nsTArray<OwningNonNull<nsIContent>>& aArrayOfContents, nsAtom& aBlockTag) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
// Intent of this routine is to be used for converting to/from headers,
|
|
// paragraphs, pre, and address. Those blocks that pretty much just contain
|
|
// inline things...
|
|
nsCOMPtr<Element> newBlock;
|
|
nsCOMPtr<Element> curBlock;
|
|
for (auto& content : aArrayOfContents) {
|
|
EditorDOMPoint atContent(content);
|
|
if (NS_WARN_IF(!atContent.IsInContentNode())) {
|
|
// If given node has been removed from the document, let's ignore it
|
|
// since the following code may need its parent replace it with new
|
|
// block.
|
|
curBlock = nullptr;
|
|
newBlock = nullptr;
|
|
continue;
|
|
}
|
|
|
|
// Is it already the right kind of block, or an uneditable block?
|
|
if (content->IsHTMLElement(&aBlockTag) ||
|
|
(!EditorUtils::IsEditableContent(content, EditorType::HTML) &&
|
|
HTMLEditUtils::IsBlockElement(content))) {
|
|
// Forget any previous block used for previous inline nodes
|
|
curBlock = nullptr;
|
|
// Do nothing to this block
|
|
continue;
|
|
}
|
|
|
|
// If content is a address, p, header, address, or pre, replace it with a
|
|
// new block of correct type.
|
|
// XXX: pre can't hold everything the others can
|
|
if (HTMLEditUtils::IsMozDiv(content) ||
|
|
HTMLEditUtils::IsFormatNode(content)) {
|
|
// Forget any previous block used for previous inline nodes
|
|
curBlock = nullptr;
|
|
newBlock = ReplaceContainerAndCloneAttributesWithTransaction(
|
|
MOZ_KnownLive(*content->AsElement()), aBlockTag);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!newBlock) {
|
|
NS_WARNING(
|
|
"EditorBase::ReplaceContainerAndCloneAttributesWithTransaction() "
|
|
"failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// If the new block element was moved to different element or removed by
|
|
// the web app via mutation event listener, we should stop handling this
|
|
// action since we cannot handle each of a lot of edge cases.
|
|
if (NS_WARN_IF(newBlock->GetParentNode() != atContent.GetContainer())) {
|
|
return NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsTable(content) ||
|
|
HTMLEditUtils::IsAnyListElement(content) ||
|
|
content->IsAnyOfHTMLElements(nsGkAtoms::tbody, nsGkAtoms::tr,
|
|
nsGkAtoms::td, nsGkAtoms::li,
|
|
nsGkAtoms::blockquote, nsGkAtoms::div)) {
|
|
// Forget any previous block used for previous inline nodes
|
|
curBlock = nullptr;
|
|
// Recursion time
|
|
AutoTArray<OwningNonNull<nsIContent>, 24> childContents;
|
|
HTMLEditor::GetChildNodesOf(*content, childContents);
|
|
if (!childContents.IsEmpty()) {
|
|
nsresult rv =
|
|
CreateOrChangeBlockContainerElement(childContents, aBlockTag);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::CreateOrChangeBlockContainerElement() failed");
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Make sure we can put a block here
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(aBlockTag, atContent);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction() failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
// If current handling node has been moved from the container by a
|
|
// mutation event listener when we need to do something more for it,
|
|
// we should stop handling this action since we cannot handle each of
|
|
// a lot of edge cases.
|
|
if (NS_WARN_IF(atContent.HasChildMovedFromContainer())) {
|
|
return NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE;
|
|
}
|
|
EditorDOMPoint splitPoint = splitNodeResult.SplitPoint();
|
|
RefPtr<Element> theBlock =
|
|
CreateNodeWithTransaction(aBlockTag, splitPoint);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!theBlock) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// If the new block element was moved to different element or removed by
|
|
// the web app via mutation event listener, we should stop handling this
|
|
// action since we cannot handle each of a lot of edge cases.
|
|
if (NS_WARN_IF(theBlock->GetParentNode() != splitPoint.GetContainer())) {
|
|
return NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE;
|
|
}
|
|
// Remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = std::move(theBlock);
|
|
continue;
|
|
}
|
|
|
|
if (content->IsHTMLElement(nsGkAtoms::br)) {
|
|
// If the node is a break, we honor it by putting further nodes in a new
|
|
// parent
|
|
if (curBlock) {
|
|
// Forget any previous block used for previous inline nodes
|
|
curBlock = nullptr;
|
|
// MOZ_KnownLive because 'aArrayOfContents' is guaranteed to keep it
|
|
// alive.
|
|
nsresult rv = DeleteNodeWithTransaction(MOZ_KnownLive(*content));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// The break is the first (or even only) node we encountered. Create a
|
|
// block for it.
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(aBlockTag, atContent);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction() failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
// If current handling node has been moved from the container by a
|
|
// mutation event listener when we need to do something more for it,
|
|
// we should stop handling this action since we cannot handle each of
|
|
// a lot of edge cases.
|
|
if (NS_WARN_IF(atContent.HasChildMovedFromContainer())) {
|
|
return NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE;
|
|
}
|
|
EditorDOMPoint splitPoint = splitNodeResult.SplitPoint();
|
|
curBlock = CreateNodeWithTransaction(aBlockTag, splitPoint);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!curBlock) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// If the new block element was moved to different element or removed by
|
|
// the web app via mutation event listener, we should stop handling this
|
|
// action since we cannot handle each of a lot of edge cases.
|
|
if (NS_WARN_IF(curBlock->GetParentNode() != splitPoint.GetContainer())) {
|
|
return NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE;
|
|
}
|
|
// Remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = curBlock;
|
|
// Note: doesn't matter if we set mNewBlockElement multiple times.
|
|
//
|
|
// MOZ_KnownLive because 'aArrayOfContents' is guaranteed to keep it
|
|
// alive.
|
|
nsresult rv =
|
|
MoveNodeToEndWithTransaction(MOZ_KnownLive(content), *curBlock);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsInlineElement(content)) {
|
|
// If content is inline, pull it into curBlock. Note: it's assumed that
|
|
// consecutive inline nodes in aNodeArray are actually members of the
|
|
// same block parent. This happens to be true now as a side effect of
|
|
// how aNodeArray is contructed, but some additional logic should be
|
|
// added here if that should change
|
|
//
|
|
// If content is a non editable, drop it if we are going to <pre>.
|
|
if (&aBlockTag == nsGkAtoms::pre &&
|
|
!EditorUtils::IsEditableContent(content, EditorType::HTML)) {
|
|
// Do nothing to this block
|
|
continue;
|
|
}
|
|
|
|
// If no curBlock, make one
|
|
if (!curBlock) {
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(aBlockTag, atContent);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction() "
|
|
"failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
// If current handling node has been moved from the container by a
|
|
// mutation event listener when we need to do something more for it,
|
|
// we should stop handling this action since we cannot handle each of
|
|
// a lot of edge cases.
|
|
if (NS_WARN_IF(atContent.HasChildMovedFromContainer())) {
|
|
return NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE;
|
|
}
|
|
EditorDOMPoint splitPoint = splitNodeResult.SplitPoint();
|
|
curBlock = CreateNodeWithTransaction(aBlockTag, splitPoint);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!curBlock) {
|
|
NS_WARNING("EditorBase::CreateNodeWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// If the new block element was moved to different element or removed
|
|
// by the web app via mutation event listener, we should stop handling
|
|
// this action since we cannot handle each of a lot of edge cases.
|
|
if (NS_WARN_IF(curBlock->GetParentNode() !=
|
|
splitPoint.GetContainer())) {
|
|
return NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE;
|
|
}
|
|
|
|
// Update container of content.
|
|
atContent.Set(content);
|
|
|
|
// Remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = curBlock;
|
|
// Note: doesn't matter if we set mNewBlockElement multiple times.
|
|
}
|
|
|
|
if (NS_WARN_IF(!atContent.IsSet())) {
|
|
// This is possible due to mutation events, let's not assert
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
// XXX If content is a br, replace it with a return if going to <pre>
|
|
|
|
// This is a continuation of some inline nodes that belong together in
|
|
// the same block item. Use curBlock.
|
|
//
|
|
// MOZ_KnownLive because 'aArrayOfContents' is guaranteed to keep it
|
|
// alive. We could try to make that a rvalue ref and create a const array
|
|
// on the stack here, but callers are passing in auto arrays, and we don't
|
|
// want to introduce copies..
|
|
nsresult rv =
|
|
MoveNodeToEndWithTransaction(MOZ_KnownLive(content), *curBlock);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
SplitNodeResult HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction(
|
|
nsAtom& aTag, const EditorDOMPoint& aStartOfDeepestRightNode) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (NS_WARN_IF(!aStartOfDeepestRightNode.IsSet())) {
|
|
return SplitNodeResult(NS_ERROR_INVALID_ARG);
|
|
}
|
|
MOZ_ASSERT(aStartOfDeepestRightNode.IsSetAndValid());
|
|
|
|
RefPtr<Element> host = GetActiveEditingHost();
|
|
if (NS_WARN_IF(!host)) {
|
|
return SplitNodeResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
// The point must be descendant of editing host.
|
|
if (aStartOfDeepestRightNode.GetContainer() != host &&
|
|
!EditorUtils::IsDescendantOf(*aStartOfDeepestRightNode.GetContainer(),
|
|
*host)) {
|
|
NS_WARNING("aStartOfDeepestRightNode was not in editing host");
|
|
return SplitNodeResult(NS_ERROR_INVALID_ARG);
|
|
}
|
|
|
|
// Look for a node that can legally contain the tag.
|
|
EditorDOMPoint pointToInsert(aStartOfDeepestRightNode);
|
|
for (; pointToInsert.IsSet();
|
|
pointToInsert.Set(pointToInsert.GetContainer())) {
|
|
// We cannot split active editing host and its ancestor. So, there is
|
|
// no element to contain the specified element.
|
|
if (pointToInsert.GetChild() == host) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction() reached "
|
|
"editing host");
|
|
return SplitNodeResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
if (HTMLEditUtils::CanNodeContain(*pointToInsert.GetContainer(), aTag)) {
|
|
// Found an ancestor node which can contain the element.
|
|
break;
|
|
}
|
|
}
|
|
|
|
MOZ_DIAGNOSTIC_ASSERT(pointToInsert.IsSet());
|
|
|
|
// If the point itself can contain the tag, we don't need to split any
|
|
// ancestor nodes. In this case, we should return the given split point
|
|
// as is.
|
|
if (pointToInsert.GetContainer() == aStartOfDeepestRightNode.GetContainer()) {
|
|
return SplitNodeResult(aStartOfDeepestRightNode);
|
|
}
|
|
|
|
SplitNodeResult splitNodeResult = SplitNodeDeepWithTransaction(
|
|
MOZ_KnownLive(*pointToInsert.GetChild()), aStartOfDeepestRightNode,
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(splitNodeResult.Succeeded(),
|
|
"HTMLEditor::SplitNodeDeepWithTransaction(SplitAtEdges::"
|
|
"eAllowToCreateEmptyContainer) failed");
|
|
return splitNodeResult;
|
|
}
|
|
|
|
nsresult HTMLEditor::JoinNearestEditableNodesWithTransaction(
|
|
nsIContent& aNodeLeft, nsIContent& aNodeRight,
|
|
EditorDOMPoint* aNewFirstChildOfRightNode) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aNewFirstChildOfRightNode);
|
|
|
|
// Caller responsible for left and right node being the same type
|
|
if (NS_WARN_IF(!aNodeLeft.GetParentNode())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// If they don't have the same parent, first move the right node to after
|
|
// the left one
|
|
if (aNodeLeft.GetParentNode() != aNodeRight.GetParentNode()) {
|
|
nsresult rv =
|
|
MoveNodeWithTransaction(aNodeRight, EditorDOMPoint(&aNodeLeft));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
EditorDOMPoint ret(&aNodeRight, aNodeLeft.Length());
|
|
|
|
// Separate join rules for differing blocks
|
|
if (HTMLEditUtils::IsAnyListElement(&aNodeLeft) || aNodeLeft.IsText()) {
|
|
// For lists, merge shallow (wouldn't want to combine list items)
|
|
nsresult rv = JoinNodesWithTransaction(aNodeLeft, aNodeRight);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::JoinNodesWithTransaction failed");
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// XXX `ret` may point invalid point if mutation event listener changed
|
|
// the previous siblings...
|
|
*aNewFirstChildOfRightNode = std::move(ret);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
// Remember the last left child, and first right child
|
|
nsCOMPtr<nsIContent> lastLeft = GetLastEditableChild(aNodeLeft);
|
|
if (NS_WARN_IF(!lastLeft)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsCOMPtr<nsIContent> firstRight = GetFirstEditableChild(aNodeRight);
|
|
if (NS_WARN_IF(!firstRight)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// For list items, divs, etc., merge smart
|
|
nsresult rv = JoinNodesWithTransaction(aNodeLeft, aNodeRight);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::JoinNodesWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
if ((lastLeft->IsText() || lastLeft->IsElement()) &&
|
|
HTMLEditUtils::CanContentsBeJoined(*lastLeft, *firstRight,
|
|
StyleDifference::CompareIfElements)) {
|
|
nsresult rv = JoinNearestEditableNodesWithTransaction(
|
|
*lastLeft, *firstRight, aNewFirstChildOfRightNode);
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::JoinNearestEditableNodesWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
// XXX `ret` may point invalid point if mutation event listener changed
|
|
// the previous siblings...
|
|
*aNewFirstChildOfRightNode = std::move(ret);
|
|
return NS_OK;
|
|
}
|
|
|
|
Element* HTMLEditor::GetMostAncestorMailCiteElement(nsINode& aNode) const {
|
|
Element* mailCiteElement = nullptr;
|
|
bool isPlaintextEditor = IsPlaintextEditor();
|
|
for (nsINode* node = &aNode; node; node = node->GetParentNode()) {
|
|
if ((isPlaintextEditor && node->IsHTMLElement(nsGkAtoms::pre)) ||
|
|
HTMLEditUtils::IsMailCite(node)) {
|
|
mailCiteElement = node->AsElement();
|
|
}
|
|
if (node->IsHTMLElement(nsGkAtoms::body)) {
|
|
break;
|
|
}
|
|
}
|
|
return mailCiteElement;
|
|
}
|
|
|
|
nsresult HTMLEditor::CacheInlineStyles(nsIContent& aContent) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
nsresult rv = GetInlineStyles(
|
|
aContent, *TopLevelEditSubActionDataRef().mCachedInlineStyles);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::GetInlineStyles() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::GetInlineStyles(nsIContent& aContent,
|
|
AutoStyleCacheArray& aStyleCacheArray) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aStyleCacheArray.IsEmpty());
|
|
|
|
bool useCSS = IsCSSEnabled();
|
|
|
|
for (nsStaticAtom* property :
|
|
{nsGkAtoms::b, nsGkAtoms::i, nsGkAtoms::u, nsGkAtoms::face,
|
|
nsGkAtoms::size, nsGkAtoms::color, nsGkAtoms::tt, nsGkAtoms::em,
|
|
nsGkAtoms::strong, nsGkAtoms::dfn, nsGkAtoms::code, nsGkAtoms::samp,
|
|
nsGkAtoms::var, nsGkAtoms::cite, nsGkAtoms::abbr, nsGkAtoms::acronym,
|
|
nsGkAtoms::backgroundColor, nsGkAtoms::sub, nsGkAtoms::sup}) {
|
|
nsStaticAtom *tag, *attribute;
|
|
if (property == nsGkAtoms::face || property == nsGkAtoms::size ||
|
|
property == nsGkAtoms::color) {
|
|
tag = nsGkAtoms::font;
|
|
attribute = property;
|
|
} else {
|
|
tag = property;
|
|
attribute = nullptr;
|
|
}
|
|
// If type-in state is set, don't intervene
|
|
bool typeInSet, unused;
|
|
mTypeInState->GetTypingState(typeInSet, unused, tag, attribute, nullptr);
|
|
if (typeInSet) {
|
|
continue;
|
|
}
|
|
bool isSet = false;
|
|
nsString value; // Don't use nsAutoString here because it requires memcpy
|
|
// at creating new StyleCache instance.
|
|
// Don't use CSS for <font size>, we don't support it usefully (bug 780035)
|
|
if (!useCSS || (property == nsGkAtoms::size)) {
|
|
isSet = IsTextPropertySetByContent(&aContent, tag, attribute, nullptr,
|
|
&value);
|
|
} else {
|
|
isSet = CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
|
|
aContent, MOZ_KnownLive(tag), MOZ_KnownLive(attribute), value);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
}
|
|
if (isSet) {
|
|
aStyleCacheArray.AppendElement(StyleCache(tag, attribute, value));
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::ReapplyCachedStyles() {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
// The idea here is to examine our cached list of styles and see if any have
|
|
// been removed. If so, add typeinstate for them, so that they will be
|
|
// reinserted when new content is added.
|
|
|
|
if (TopLevelEditSubActionDataRef().mCachedInlineStyles->IsEmpty() ||
|
|
!SelectionRefPtr()->RangeCount()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// remember if we are in css mode
|
|
bool useCSS = IsCSSEnabled();
|
|
|
|
const RangeBoundary& atStartOfSelection =
|
|
SelectionRefPtr()->GetRangeAt(0)->StartRef();
|
|
nsCOMPtr<nsIContent> startContainerContent =
|
|
atStartOfSelection.Container() &&
|
|
atStartOfSelection.Container()->IsContent()
|
|
? atStartOfSelection.Container()->AsContent()
|
|
: nullptr;
|
|
if (NS_WARN_IF(!startContainerContent)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
AutoStyleCacheArray styleCacheArrayAtInsertionPoint;
|
|
nsresult rv =
|
|
GetInlineStyles(*startContainerContent, styleCacheArrayAtInsertionPoint);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::GetInlineStyles() failed, but ignored");
|
|
return NS_OK;
|
|
}
|
|
|
|
for (StyleCache& styleCacheBeforeEdit :
|
|
*TopLevelEditSubActionDataRef().mCachedInlineStyles) {
|
|
bool isFirst = false, isAny = false, isAll = false;
|
|
nsAutoString currentValue;
|
|
if (useCSS) {
|
|
// check computed style first in css case
|
|
isAny = CSSEditUtils::IsComputedCSSEquivalentToHTMLInlineStyleSet(
|
|
*startContainerContent, MOZ_KnownLive(styleCacheBeforeEdit.Tag()),
|
|
MOZ_KnownLive(styleCacheBeforeEdit.GetAttribute()), currentValue);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
}
|
|
if (!isAny) {
|
|
// then check typeinstate and html style
|
|
nsresult rv = GetInlinePropertyBase(
|
|
MOZ_KnownLive(*styleCacheBeforeEdit.Tag()),
|
|
MOZ_KnownLive(styleCacheBeforeEdit.GetAttribute()),
|
|
&styleCacheBeforeEdit.Value(), &isFirst, &isAny, &isAll,
|
|
¤tValue);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::GetInlinePropertyBase() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
// This style has disappeared through deletion. Let's add the styles to
|
|
// mTypeInState when same style isn't applied to the node already.
|
|
if (isAny && !IsStyleCachePreservingSubAction(GetTopLevelEditSubAction())) {
|
|
continue;
|
|
}
|
|
AutoStyleCacheArray::index_type index =
|
|
styleCacheArrayAtInsertionPoint.IndexOf(
|
|
styleCacheBeforeEdit.Tag(), styleCacheBeforeEdit.GetAttribute());
|
|
if (index == AutoStyleCacheArray::NoIndex ||
|
|
styleCacheBeforeEdit.Value() !=
|
|
styleCacheArrayAtInsertionPoint.ElementAt(index).Value()) {
|
|
mTypeInState->SetProp(styleCacheBeforeEdit.Tag(),
|
|
styleCacheBeforeEdit.GetAttribute(),
|
|
styleCacheBeforeEdit.Value());
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::InsertBRElementToEmptyListItemsAndTableCellsInRange(
|
|
const RawRangeBoundary& aStartRef, const RawRangeBoundary& aEndRef) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
AutoTArray<OwningNonNull<Element>, 64> arrayOfEmptyElements;
|
|
DOMIterator iter;
|
|
if (NS_FAILED(iter.Init(aStartRef, aEndRef))) {
|
|
NS_WARNING("DOMIterator::Init() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
iter.AppendNodesToArray(
|
|
+[](nsINode& aNode, void* aSelf) {
|
|
MOZ_ASSERT(Element::FromNode(&aNode));
|
|
MOZ_ASSERT(aSelf);
|
|
Element* element = aNode.AsElement();
|
|
if (!EditorUtils::IsEditableContent(*element, EditorType::HTML) ||
|
|
(!HTMLEditUtils::IsListItem(element) &&
|
|
!HTMLEditUtils::IsTableCellOrCaption(*element))) {
|
|
return false;
|
|
}
|
|
return static_cast<HTMLEditor*>(aSelf)->IsEmptyNode(*element, false,
|
|
false);
|
|
},
|
|
arrayOfEmptyElements, this);
|
|
|
|
// Put padding <br> elements for empty <li> and <td>.
|
|
for (auto& emptyElement : arrayOfEmptyElements) {
|
|
// Need to put br at END of node. It may have empty containers in it and
|
|
// still pass the "IsEmptyNode" test, and we want the br's to be after
|
|
// them. Also, we want the br to be after the selection if the selection
|
|
// is in this node.
|
|
EditorDOMPoint endOfNode(EditorDOMPoint::AtEndOf(emptyElement));
|
|
CreateElementResult createPaddingBRResult =
|
|
InsertPaddingBRElementForEmptyLastLineWithTransaction(endOfNode);
|
|
if (createPaddingBRResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::InsertPaddingBRElementForEmptyLastLineWithTransaction() "
|
|
"failed");
|
|
return createPaddingBRResult.Rv();
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::EnsureCaretInBlockElement(Element& aElement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(SelectionRefPtr()->IsCollapsed());
|
|
|
|
EditorRawDOMPoint atCaret(EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
if (NS_WARN_IF(!atCaret.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Use ranges and RangeUtils::CompareNodeToRange() to compare selection
|
|
// start to new block.
|
|
RefPtr<StaticRange> staticRange =
|
|
StaticRange::Create(atCaret.ToRawRangeBoundary(),
|
|
atCaret.ToRawRangeBoundary(), IgnoreErrors());
|
|
if (!staticRange) {
|
|
NS_WARNING("StaticRange::Create() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
bool nodeBefore, nodeAfter;
|
|
nsresult rv = RangeUtils::CompareNodeToRange(&aElement, staticRange,
|
|
&nodeBefore, &nodeAfter);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("RangeUtils::CompareNodeToRange() failed");
|
|
return rv;
|
|
}
|
|
|
|
if (nodeBefore && nodeAfter) {
|
|
return NS_OK; // selection is inside block
|
|
}
|
|
|
|
if (nodeBefore) {
|
|
// selection is after block. put at end of block.
|
|
nsIContent* lastEditableContent = GetLastEditableChild(aElement);
|
|
if (!lastEditableContent) {
|
|
lastEditableContent = &aElement;
|
|
}
|
|
EditorRawDOMPoint endPoint;
|
|
if (lastEditableContent->IsText() ||
|
|
HTMLEditUtils::IsContainerNode(*lastEditableContent)) {
|
|
endPoint.SetToEndOf(lastEditableContent);
|
|
} else {
|
|
endPoint.SetAfter(lastEditableContent);
|
|
if (NS_WARN_IF(!endPoint.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
nsresult rv = CollapseSelectionTo(endPoint);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed");
|
|
return rv;
|
|
}
|
|
|
|
// selection is before block. put at start of block.
|
|
nsIContent* firstEditableContent = GetFirstEditableChild(aElement);
|
|
if (!firstEditableContent) {
|
|
firstEditableContent = &aElement;
|
|
}
|
|
EditorRawDOMPoint atStartOfBlock;
|
|
if (firstEditableContent->IsText() ||
|
|
HTMLEditUtils::IsContainerNode(*firstEditableContent)) {
|
|
atStartOfBlock.Set(firstEditableContent);
|
|
} else {
|
|
atStartOfBlock.Set(firstEditableContent, 0);
|
|
}
|
|
rv = CollapseSelectionTo(atStartOfBlock);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed");
|
|
return rv;
|
|
}
|
|
|
|
void HTMLEditor::SetSelectionInterlinePosition() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(SelectionRefPtr()->IsCollapsed());
|
|
|
|
// Get the (collapsed) selection location
|
|
const nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return;
|
|
}
|
|
|
|
EditorDOMPoint atCaret(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atCaret.IsSet())) {
|
|
return;
|
|
}
|
|
MOZ_ASSERT(atCaret.IsSetAndValid());
|
|
|
|
// First, let's check to see if we are after a `<br>`. We take care of this
|
|
// special-case first so that we don't accidentally fall through into one of
|
|
// the other conditionals.
|
|
// XXX Although I don't understand "interline position", if caret is
|
|
// immediately after non-editable contents, but previous editable
|
|
// content is `<br>`, does this do right thing?
|
|
if (nsIContent* previousEditableContentInBlock =
|
|
GetPreviousEditableHTMLNodeInBlock(atCaret)) {
|
|
if (previousEditableContentInBlock->IsHTMLElement(nsGkAtoms::br)) {
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->SetInterlinePosition(true, ignoredError);
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"Selection::SetInterlinePosition(true) failed, but ignored");
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (!atCaret.GetChild()) {
|
|
return;
|
|
}
|
|
|
|
// If caret is immediately after a block, set interline position to "right".
|
|
// XXX Although I don't understand "interline position", if caret is
|
|
// immediately after non-editable contents, but previous editable
|
|
// content is a block, does this do right thing?
|
|
if (nsIContent* previousEditableContentInBlockAtCaret =
|
|
GetPriorHTMLSibling(atCaret.GetChild())) {
|
|
if (HTMLEditUtils::IsBlockElement(*previousEditableContentInBlockAtCaret)) {
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->SetInterlinePosition(true, ignoredError);
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"Selection::SetInterlinePosition(true) failed, but ignored");
|
|
return;
|
|
}
|
|
}
|
|
|
|
// If caret is immediately before a block, set interline position to "left".
|
|
// XXX Although I don't understand "interline position", if caret is
|
|
// immediately before non-editable contents, but next editable
|
|
// content is a block, does this do right thing?
|
|
if (nsIContent* nextEditableContentInBlockAtCaret =
|
|
GetNextHTMLSibling(atCaret.GetChild())) {
|
|
if (HTMLEditUtils::IsBlockElement(*nextEditableContentInBlockAtCaret)) {
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->SetInterlinePosition(false, ignoredError);
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"Selection::SetInterlinePosition(false) failed, but ignored");
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult HTMLEditor::AdjustCaretPositionAndEnsurePaddingBRElement(
|
|
nsIEditor::EDirection aDirectionAndAmount) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(SelectionRefPtr()->IsCollapsed());
|
|
|
|
EditorDOMPoint point(EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
if (NS_WARN_IF(!point.IsInContentNode())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// If selection start is not editable, climb up the tree until editable one.
|
|
while (!EditorUtils::IsEditableContent(*point.ContainerAsContent(),
|
|
EditorType::HTML)) {
|
|
point.Set(point.GetContainer());
|
|
if (NS_WARN_IF(!point.IsInContentNode())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
// If caret is in empty block element, we need to insert a `<br>` element
|
|
// because the block should have one-line height.
|
|
if (RefPtr<Element> blockElement =
|
|
HTMLEditUtils::GetInclusiveAncestorBlockElement(
|
|
*point.ContainerAsContent())) {
|
|
if (blockElement &&
|
|
EditorUtils::IsEditableContent(*blockElement, EditorType::HTML) &&
|
|
IsEmptyNode(*blockElement, false, false) &&
|
|
HTMLEditUtils::CanNodeContain(*point.GetContainer(), *nsGkAtoms::br)) {
|
|
Element* bodyOrDocumentElement = GetRoot();
|
|
if (NS_WARN_IF(!bodyOrDocumentElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (point.GetContainer() == bodyOrDocumentElement) {
|
|
// Our root node is completely empty. Don't add a <br> here.
|
|
// AfterEditInner() will add one for us when it calls
|
|
// TextEditor::MaybeCreatePaddingBRElementForEmptyEditor().
|
|
// XXX This kind of dependency between methods makes us spaghetti.
|
|
// Let's handle it here later.
|
|
// XXX This looks odd check. If active editing host is not a
|
|
// `<body>`, what are we doing?
|
|
return NS_OK;
|
|
}
|
|
CreateElementResult createPaddingBRResult =
|
|
InsertPaddingBRElementForEmptyLastLineWithTransaction(point);
|
|
NS_WARNING_ASSERTION(
|
|
createPaddingBRResult.Succeeded(),
|
|
"HTMLEditor::InsertPaddingBRElementForEmptyLastLineWithTransaction() "
|
|
"failed");
|
|
return createPaddingBRResult.Rv();
|
|
}
|
|
}
|
|
|
|
// XXX Perhaps, we should do something if we're in a data node but not
|
|
// a text node.
|
|
if (point.IsInTextNode()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Do we need to insert a padding <br> element for empty last line? We do
|
|
// if we are:
|
|
// 1) prior node is in same block where selection is AND
|
|
// 2) prior node is a br AND
|
|
// 3) that br is not visible
|
|
|
|
if (nsCOMPtr<nsIContent> previousEditableContent =
|
|
GetPreviousEditableHTMLNode(point)) {
|
|
RefPtr<Element> blockElementAtCaret =
|
|
HTMLEditUtils::GetInclusiveAncestorBlockElement(
|
|
*point.ContainerAsContent());
|
|
RefPtr<Element> blockElementParentAtPreviousEditableContent =
|
|
HTMLEditUtils::GetAncestorBlockElement(*previousEditableContent);
|
|
// If previous editable content of caret is in same block and a `<br>`
|
|
// element, we need to adjust interline position.
|
|
if (blockElementAtCaret &&
|
|
blockElementAtCaret == blockElementParentAtPreviousEditableContent &&
|
|
previousEditableContent &&
|
|
previousEditableContent->IsHTMLElement(nsGkAtoms::br)) {
|
|
// If it's an invisible `<br>` element, we need to insert a padding
|
|
// `<br>` element for making empty line have one-line height.
|
|
if (!IsVisibleBRElement(previousEditableContent)) {
|
|
CreateElementResult createPaddingBRResult =
|
|
InsertPaddingBRElementForEmptyLastLineWithTransaction(point);
|
|
if (createPaddingBRResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::"
|
|
"InsertPaddingBRElementForEmptyLastLineWithTransaction() failed");
|
|
return createPaddingBRResult.Rv();
|
|
}
|
|
point.Set(createPaddingBRResult.GetNewNode());
|
|
// Selection stays *before* padding `<br>` element for empty last
|
|
// line, sticking to it.
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->SetInterlinePosition(true, ignoredError);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"Selection::SetInterlinePosition(true) failed, but ignored");
|
|
nsresult rv = CollapseSelectionTo(point);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::CollapseSelectionTo() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
// If it's a visible `<br>` element and next editable content is a
|
|
// padding `<br>` element, we need to set interline position.
|
|
else if (nsIContent* nextEditableContentInBlock =
|
|
GetNextEditableHTMLNodeInBlock(*previousEditableContent)) {
|
|
if (EditorUtils::IsPaddingBRElementForEmptyLastLine(
|
|
*nextEditableContentInBlock)) {
|
|
// Make it stick to the padding `<br>` element so that it will be
|
|
// on blank line.
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->SetInterlinePosition(true, ignoredError);
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"Selection::SetInterlinePosition(true) failed, but ignored");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// If previous editable content in same block is `<br>`, text node, `<img>`
|
|
// or `<hr>`, current caret position is fine.
|
|
if (nsIContent* previousEditableContentInBlock =
|
|
GetPreviousEditableHTMLNodeInBlock(point)) {
|
|
if (previousEditableContentInBlock->IsHTMLElement(nsGkAtoms::br) ||
|
|
previousEditableContentInBlock->IsText() ||
|
|
HTMLEditUtils::IsImage(previousEditableContentInBlock) ||
|
|
previousEditableContentInBlock->IsHTMLElement(nsGkAtoms::hr)) {
|
|
return NS_OK;
|
|
}
|
|
}
|
|
// If next editable content in same block is `<br>`, text node, `<img>` or
|
|
// `<hr>`, current caret position is fine.
|
|
if (nsIContent* nextEditableContentInBlock =
|
|
GetNextEditableHTMLNodeInBlock(point)) {
|
|
if (nextEditableContentInBlock->IsText() ||
|
|
nextEditableContentInBlock->IsAnyOfHTMLElements(
|
|
nsGkAtoms::br, nsGkAtoms::img, nsGkAtoms::hr)) {
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
// Otherwise, look for a near editable content towards edit action direction.
|
|
|
|
// If there is no editable content, keep current caret position.
|
|
nsIContent* nearEditableContent =
|
|
FindNearEditableContent(point, aDirectionAndAmount);
|
|
if (!nearEditableContent) {
|
|
return NS_OK;
|
|
}
|
|
|
|
EditorDOMPoint pointToPutCaret =
|
|
GetGoodCaretPointFor(*nearEditableContent, aDirectionAndAmount);
|
|
if (!pointToPutCaret.IsSet()) {
|
|
NS_WARNING("HTMLEditor::GetGoodCaretPointFor() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsresult rv = CollapseSelectionTo(pointToPutCaret);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionTo() failed");
|
|
return rv;
|
|
}
|
|
|
|
template <typename PT, typename CT>
|
|
nsIContent* HTMLEditor::FindNearEditableContent(
|
|
const EditorDOMPointBase<PT, CT>& aPoint,
|
|
nsIEditor::EDirection aDirection) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aPoint.IsSetAndValid());
|
|
|
|
nsIContent* editableContent = nullptr;
|
|
if (aDirection == nsIEditor::ePrevious) {
|
|
editableContent = GetPreviousEditableHTMLNode(aPoint);
|
|
if (!editableContent) {
|
|
return nullptr; // Not illegal.
|
|
}
|
|
} else {
|
|
editableContent = GetNextEditableHTMLNode(aPoint);
|
|
if (NS_WARN_IF(!editableContent)) {
|
|
// Perhaps, illegal because the node pointed by aPoint isn't editable
|
|
// and nobody of previous nodes is editable.
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
// scan in the right direction until we find an eligible text node,
|
|
// but don't cross any breaks, images, or table elements.
|
|
// XXX This comment sounds odd. editableContent may have already crossed
|
|
// breaks and/or images if they are non-editable.
|
|
while (editableContent && !editableContent->IsText() &&
|
|
!editableContent->IsHTMLElement(nsGkAtoms::br) &&
|
|
!HTMLEditUtils::IsImage(editableContent)) {
|
|
if (aDirection == nsIEditor::ePrevious) {
|
|
editableContent = GetPreviousEditableHTMLNode(*editableContent);
|
|
if (NS_WARN_IF(!editableContent)) {
|
|
return nullptr;
|
|
}
|
|
} else {
|
|
editableContent = GetNextEditableHTMLNode(*editableContent);
|
|
if (NS_WARN_IF(!editableContent)) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
}
|
|
|
|
// don't cross any table elements
|
|
if (HTMLEditor::NodesInDifferentTableElements(*editableContent,
|
|
*aPoint.GetContainer())) {
|
|
return nullptr;
|
|
}
|
|
|
|
// otherwise, ok, we have found a good spot to put the selection
|
|
return editableContent;
|
|
}
|
|
|
|
// static
|
|
bool HTMLEditor::NodesInDifferentTableElements(nsINode& aNode1,
|
|
nsINode& aNode2) {
|
|
nsINode* parentNode1;
|
|
for (parentNode1 = &aNode1;
|
|
parentNode1 && !HTMLEditUtils::IsAnyTableElement(parentNode1);
|
|
parentNode1 = parentNode1->GetParentNode()) {
|
|
}
|
|
nsINode* parentNode2;
|
|
for (parentNode2 = &aNode2;
|
|
parentNode2 && !HTMLEditUtils::IsAnyTableElement(parentNode2);
|
|
parentNode2 = parentNode2->GetParentNode()) {
|
|
}
|
|
// XXX Despite of the name, this returns true if only one node is in a
|
|
// table related element.
|
|
return parentNode1 != parentNode2;
|
|
}
|
|
|
|
nsresult HTMLEditor::RemoveEmptyNodesIn(nsRange& aRange) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aRange.IsPositioned());
|
|
|
|
// Some general notes on the algorithm used here: the goal is to examine all
|
|
// the nodes in aRange, and remove the empty ones. We do this by
|
|
// using a content iterator to traverse all the nodes in the range, and
|
|
// placing the empty nodes into an array. After finishing the iteration,
|
|
// we delete the empty nodes in the array. (They cannot be deleted as we
|
|
// find them because that would invalidate the iterator.)
|
|
//
|
|
// Since checking to see if a node is empty can be costly for nodes with
|
|
// many descendants, there are some optimizations made. I rely on the fact
|
|
// that the iterator is post-order: it will visit children of a node before
|
|
// visiting the parent node. So if I find that a child node is not empty, I
|
|
// know that its parent is not empty without even checking. So I put the
|
|
// parent on a "skipList" which is just a voidArray of nodes I can skip the
|
|
// empty check on. If I encounter a node on the skiplist, i skip the
|
|
// processing for that node and replace its slot in the skiplist with that
|
|
// node's parent.
|
|
//
|
|
// An interesting idea is to go ahead and regard parent nodes that are NOT
|
|
// on the skiplist as being empty (without even doing the IsEmptyNode check)
|
|
// on the theory that if they weren't empty, we would have encountered a
|
|
// non-empty child earlier and thus put this parent node on the skiplist.
|
|
//
|
|
// Unfortunately I can't use that strategy here, because the range may
|
|
// include some children of a node while excluding others. Thus I could
|
|
// find all the _examined_ children empty, but still not have an empty
|
|
// parent.
|
|
|
|
PostContentIterator postOrderIter;
|
|
nsresult rv = postOrderIter.Init(&aRange);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("PostContentIterator::Init() failed");
|
|
return rv;
|
|
}
|
|
|
|
AutoTArray<OwningNonNull<nsIContent>, 64> arrayOfEmptyContents,
|
|
arrayOfEmptyCites, skipList;
|
|
|
|
// Check for empty nodes
|
|
for (; !postOrderIter.IsDone(); postOrderIter.Next()) {
|
|
MOZ_ASSERT(postOrderIter.GetCurrentNode()->IsContent());
|
|
|
|
nsIContent* content = postOrderIter.GetCurrentNode()->AsContent();
|
|
nsIContent* parentContent = content->GetParent();
|
|
|
|
size_t idx = skipList.IndexOf(content);
|
|
if (idx != skipList.NoIndex) {
|
|
// This node is on our skip list. Skip processing for this node, and
|
|
// replace its value in the skip list with the value of its parent
|
|
if (parentContent) {
|
|
skipList[idx] = parentContent;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
bool isCandidate = false;
|
|
bool isMailCite = false;
|
|
if (content->IsElement()) {
|
|
if (content->IsHTMLElement(nsGkAtoms::body)) {
|
|
// Don't delete the body
|
|
} else if ((isMailCite = HTMLEditUtils::IsMailCite(content)) ||
|
|
content->IsHTMLElement(nsGkAtoms::a) ||
|
|
HTMLEditUtils::IsInlineStyle(content) ||
|
|
HTMLEditUtils::IsAnyListElement(content) ||
|
|
content->IsHTMLElement(nsGkAtoms::div)) {
|
|
// Only consider certain nodes to be empty for purposes of removal
|
|
isCandidate = true;
|
|
} else if (HTMLEditUtils::IsFormatNode(content) ||
|
|
HTMLEditUtils::IsListItem(content) ||
|
|
content->IsHTMLElement(nsGkAtoms::blockquote)) {
|
|
// These node types are candidates if selection is not in them. If
|
|
// it is one of these, don't delete if selection inside. This is so
|
|
// we can create empty headings, etc., for the user to type into.
|
|
isCandidate = !StartOrEndOfSelectionRangesIsIn(*content);
|
|
}
|
|
}
|
|
|
|
bool isEmptyNode = false;
|
|
if (isCandidate) {
|
|
// We delete mailcites even if they have a solo br in them. Other
|
|
// nodes we require to be empty.
|
|
isEmptyNode = IsEmptyNode(*content, isMailCite, true);
|
|
if (isEmptyNode) {
|
|
if (isMailCite) {
|
|
// mailcites go on a separate list from other empty nodes
|
|
arrayOfEmptyCites.AppendElement(*content);
|
|
} else {
|
|
arrayOfEmptyContents.AppendElement(*content);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!isEmptyNode && parentContent) {
|
|
// put parent on skip list
|
|
skipList.AppendElement(*parentContent);
|
|
}
|
|
}
|
|
|
|
// now delete the empty nodes
|
|
for (OwningNonNull<nsIContent>& emptyContent : arrayOfEmptyContents) {
|
|
// XXX Shouldn't we check whether it's removable from its parent??
|
|
if (HTMLEditUtils::IsSimplyEditableNode(emptyContent)) {
|
|
// MOZ_KnownLive because 'arrayOfEmptyContents' is guaranteed to keep it
|
|
// alive.
|
|
rv = DeleteNodeWithTransaction(MOZ_KnownLive(emptyContent));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Now delete the empty mailcites. This is a separate step because we want
|
|
// to pull out any br's and preserve them.
|
|
for (OwningNonNull<nsIContent>& emptyCite : arrayOfEmptyCites) {
|
|
if (!IsEmptyNode(emptyCite, false, true)) {
|
|
// We are deleting a cite that has just a `<br>`. We want to delete cite,
|
|
// but preserve `<br>`.
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(EditorDOMPoint(emptyCite));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!brElement) {
|
|
NS_WARNING("HTMLEditor::InsertBRElementWithTransaction() failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
// MOZ_KnownLive because 'arrayOfEmptyCites' is guaranteed to keep it alive.
|
|
rv = DeleteNodeWithTransaction(MOZ_KnownLive(emptyCite));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
bool HTMLEditor::StartOrEndOfSelectionRangesIsIn(nsIContent& aContent) const {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
for (uint32_t i = 0; i < SelectionRefPtr()->RangeCount(); ++i) {
|
|
const nsRange* range = SelectionRefPtr()->GetRangeAt(i);
|
|
nsINode* startContainer = range->GetStartContainer();
|
|
if (startContainer) {
|
|
if (&aContent == startContainer) {
|
|
return true;
|
|
}
|
|
if (EditorUtils::IsDescendantOf(*startContainer, aContent)) {
|
|
return true;
|
|
}
|
|
}
|
|
nsINode* endContainer = range->GetEndContainer();
|
|
if (startContainer == endContainer) {
|
|
continue;
|
|
}
|
|
if (endContainer) {
|
|
if (&aContent == endContainer) {
|
|
return true;
|
|
}
|
|
if (EditorUtils::IsDescendantOf(*endContainer, aContent)) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
nsresult HTMLEditor::LiftUpListItemElement(
|
|
Element& aListItemElement,
|
|
LiftUpFromAllParentListElements aLiftUpFromAllParentListElements) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (!HTMLEditUtils::IsListItem(&aListItemElement)) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
if (NS_WARN_IF(!aListItemElement.GetParentElement()) ||
|
|
NS_WARN_IF(!aListItemElement.GetParentElement()->GetParentNode())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// if it's first or last list item, don't need to split the list
|
|
// otherwise we do.
|
|
bool isFirstListItem = IsFirstEditableChild(&aListItemElement);
|
|
bool isLastListItem = IsLastEditableChild(&aListItemElement);
|
|
|
|
Element* leftListElement = aListItemElement.GetParentElement();
|
|
if (NS_WARN_IF(!leftListElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// If it's at middle of parent list element, split the parent list element.
|
|
// Then, aListItem becomes the first list item of the right list element.
|
|
if (!isFirstListItem && !isLastListItem) {
|
|
EditorDOMPoint atListItemElement(&aListItemElement);
|
|
if (NS_WARN_IF(!atListItemElement.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
MOZ_ASSERT(atListItemElement.IsSetAndValid());
|
|
ErrorResult error;
|
|
nsCOMPtr<nsIContent> maybeLeftListContent =
|
|
SplitNodeWithTransaction(atListItemElement, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error = NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (error.Failed()) {
|
|
NS_WARNING_ASSERTION(error.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED),
|
|
"HTMLEditor::SplitNodeWithTransaction() failed");
|
|
return error.StealNSResult();
|
|
}
|
|
if (!maybeLeftListContent->IsElement()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitNodeWithTransaction() didn't return left list "
|
|
"element");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
leftListElement = maybeLeftListContent->AsElement();
|
|
}
|
|
|
|
// In most cases, insert the list item into the new left list node..
|
|
EditorDOMPoint pointToInsertListItem(leftListElement);
|
|
if (NS_WARN_IF(!pointToInsertListItem.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// But when the list item was the first child of the right list, it should
|
|
// be inserted between the both list elements. This allows user to hit
|
|
// Enter twice at a list item breaks the parent list node.
|
|
if (!isFirstListItem) {
|
|
DebugOnly<bool> advanced = pointToInsertListItem.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset to right list node");
|
|
}
|
|
|
|
nsresult rv =
|
|
MoveNodeWithTransaction(aListItemElement, pointToInsertListItem);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
// Unwrap list item contents if they are no longer in a list
|
|
// XXX If the parent list element is a child of another list element
|
|
// (although invalid tree), the list item element won't be unwrapped.
|
|
// That makes the parent ancestor element tree valid, but might be
|
|
// unexpected result.
|
|
// XXX If aListItemElement is <dl> or <dd> and current parent is <ul> or <ol>,
|
|
// the list items won't be unwrapped. If aListItemElement is <li> and its
|
|
// current parent is <dl>, there is same issue.
|
|
if (!HTMLEditUtils::IsAnyListElement(pointToInsertListItem.GetContainer()) &&
|
|
HTMLEditUtils::IsListItem(&aListItemElement)) {
|
|
nsresult rv = RemoveBlockContainerWithTransaction(aListItemElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RemoveBlockContainerWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
if (aLiftUpFromAllParentListElements == LiftUpFromAllParentListElements::No) {
|
|
return NS_OK;
|
|
}
|
|
// XXX If aListItemElement is moved to unexpected element by mutation event
|
|
// listener, shouldn't we stop calling this?
|
|
rv = LiftUpListItemElement(aListItemElement,
|
|
LiftUpFromAllParentListElements::Yes);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::LiftUpListItemElement("
|
|
"LiftUpFromAllParentListElements::Yes) failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::DestroyListStructureRecursively(Element& aListElement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(HTMLEditUtils::IsAnyListElement(&aListElement));
|
|
|
|
// XXX If mutation event listener inserts new child into `aListElement`,
|
|
// this becomes infinite loop so that we should set limit of the
|
|
// loop count from original child count.
|
|
while (aListElement.GetFirstChild()) {
|
|
OwningNonNull<nsIContent> child = *aListElement.GetFirstChild();
|
|
|
|
if (HTMLEditUtils::IsListItem(child)) {
|
|
// XXX Using LiftUpListItemElement() is too expensive for this purpose.
|
|
// Looks like the reason why this method uses it is, only this loop
|
|
// wants to work with first child of aListElement. However, what it
|
|
// actually does is removing <li> as container. Perhaps, we should
|
|
// decide destination first, and then, move contents in `child`.
|
|
// XXX If aListElement is is a child of another list element (although
|
|
// it's invalid tree), this moves the list item to outside of
|
|
// aListElement's parent. Is that really intentional behavior?
|
|
nsresult rv = LiftUpListItemElement(
|
|
MOZ_KnownLive(*child->AsElement()),
|
|
HTMLEditor::LiftUpFromAllParentListElements::Yes);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::LiftUpListItemElement(LiftUpFromAllParentListElements:"
|
|
":Yes) failed");
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsAnyListElement(child)) {
|
|
nsresult rv =
|
|
DestroyListStructureRecursively(MOZ_KnownLive(*child->AsElement()));
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DestroyListStructureRecursively() failed");
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Delete any non-list items for now
|
|
// XXX This is not HTML5 aware. HTML5 allows all list elements to have
|
|
// <script> and <template> and <dl> element to have <div> to group
|
|
// some <dt> and <dd> elements. So, this may break valid children.
|
|
nsresult rv = DeleteNodeWithTransaction(*child);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// Delete the now-empty list
|
|
nsresult rv = RemoveBlockContainerWithTransaction(aListElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RemoveBlockContainerWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::EnsureSelectionInBodyOrDocumentElement() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
RefPtr<Element> bodyOrDocumentElement = GetRoot();
|
|
if (NS_WARN_IF(!bodyOrDocumentElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorRawDOMPoint atCaret(EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
if (NS_WARN_IF(!atCaret.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// XXX This does wrong things. Web apps can put any elements as sibling
|
|
// of `<body>` element. Therefore, this collapses `Selection` into
|
|
// the `<body>` element which `HTMLDocument.body` is set to. So,
|
|
// this makes users impossible to modify content outside of the
|
|
// `<body>` element even if caret is in an editing host.
|
|
|
|
// Check that selection start container is inside the <body> element.
|
|
// XXXsmaug this code is insane.
|
|
nsINode* temp = atCaret.GetContainer();
|
|
while (temp && !temp->IsHTMLElement(nsGkAtoms::body)) {
|
|
temp = temp->GetParentOrShadowHostNode();
|
|
}
|
|
|
|
// If we aren't in the <body> element, force the issue.
|
|
if (!temp) {
|
|
nsresult rv = CollapseSelectionToStartOf(*bodyOrDocumentElement);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed, but ignored");
|
|
return NS_OK;
|
|
}
|
|
|
|
EditorRawDOMPoint selectionEndPoint(
|
|
EditorBase::GetEndPoint(*SelectionRefPtr()));
|
|
if (NS_WARN_IF(!selectionEndPoint.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// check that selNode is inside body
|
|
// XXXsmaug this code is insane.
|
|
temp = selectionEndPoint.GetContainer();
|
|
while (temp && !temp->IsHTMLElement(nsGkAtoms::body)) {
|
|
temp = temp->GetParentOrShadowHostNode();
|
|
}
|
|
|
|
// If we aren't in the <body> element, force the issue.
|
|
if (!temp) {
|
|
nsresult rv = CollapseSelectionToStartOf(*bodyOrDocumentElement);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed, but ignored");
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::InsertPaddingBRElementForEmptyLastLineIfNeeded(
|
|
Element& aElement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (!HTMLEditUtils::IsBlockElement(aElement)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!IsEmptyNode(aElement)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
CreateElementResult createBRResult =
|
|
InsertPaddingBRElementForEmptyLastLineWithTransaction(
|
|
EditorDOMPoint(&aElement, 0));
|
|
NS_WARNING_ASSERTION(
|
|
createBRResult.Succeeded(),
|
|
"HTMLEditor::InsertPaddingBRElementForEmptyLastLineWithTransaction() "
|
|
"failed");
|
|
return createBRResult.Rv();
|
|
}
|
|
|
|
nsresult HTMLEditor::InsertBRElementIfEmptyBlockElement(Element& aElement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (!HTMLEditUtils::IsBlockElement(aElement)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!IsEmptyNode(aElement)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(EditorDOMPoint(&aElement, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(brElement,
|
|
"HTMELditor::InsertBRElementWithTransaction() failed");
|
|
return brElement ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsresult HTMLEditor::RemoveAlignFromDescendants(Element& aElement,
|
|
const nsAString& aAlignType,
|
|
EditTarget aEditTarget) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(!aElement.IsHTMLElement(nsGkAtoms::table));
|
|
|
|
bool useCSS = IsCSSEnabled();
|
|
|
|
// Let's remove all alignment hints in the children of aNode; it can
|
|
// be an ALIGN attribute (in case we just remove it) or a CENTER
|
|
// element (here we have to remove the container and keep its
|
|
// children). We break on tables and don't look at their children.
|
|
nsCOMPtr<nsIContent> nextSibling;
|
|
for (nsIContent* content =
|
|
aEditTarget == EditTarget::NodeAndDescendantsExceptTable
|
|
? &aElement
|
|
: aElement.GetFirstChild();
|
|
content; content = nextSibling) {
|
|
// Get the next sibling before removing content from the DOM tree.
|
|
// XXX If next sibling is removed from the parent and/or inserted to
|
|
// different parent, we will behave unexpectedly. I think that
|
|
// we should create child list and handle it with checking whether
|
|
// it's still a child of expected parent.
|
|
nextSibling = aEditTarget == EditTarget::NodeAndDescendantsExceptTable
|
|
? nullptr
|
|
: content->GetNextSibling();
|
|
|
|
if (content->IsHTMLElement(nsGkAtoms::center)) {
|
|
OwningNonNull<Element> centerElement = *content->AsElement();
|
|
nsresult rv = RemoveAlignFromDescendants(
|
|
centerElement, aAlignType, EditTarget::OnlyDescendantsExceptTable);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::RemoveAlignFromDescendants(EditTarget::"
|
|
"OnlyDescendantsExceptTable) failed");
|
|
return rv;
|
|
}
|
|
|
|
// We may have to insert a `<br>` element before first child of the
|
|
// `<center>` element because it should be first element of a hard line
|
|
// even after removing the `<center>` element.
|
|
rv = EnsureHardLineBeginsWithFirstChildOf(centerElement);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::EnsureHardLineBeginsWithFirstChildOf() failed");
|
|
return rv;
|
|
}
|
|
|
|
// We may have to insert a `<br>` element after last child of the
|
|
// `<center>` element because it should be last element of a hard line
|
|
// even after removing the `<center>` element.
|
|
rv = EnsureHardLineEndsWithLastChildOf(centerElement);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::EnsureHardLineEndsWithLastChildOf() failed");
|
|
return rv;
|
|
}
|
|
|
|
rv = RemoveContainerWithTransaction(centerElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveContainerWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (!HTMLEditUtils::IsBlockElement(*content) &&
|
|
!content->IsHTMLElement(nsGkAtoms::hr)) {
|
|
continue;
|
|
}
|
|
|
|
OwningNonNull<Element> blockOrHRElement = *content->AsElement();
|
|
if (HTMLEditUtils::SupportsAlignAttr(blockOrHRElement)) {
|
|
nsresult rv =
|
|
RemoveAttributeWithTransaction(blockOrHRElement, *nsGkAtoms::align);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"EditorBase::RemoveAttributeWithTransaction(nsGkAtoms::align) "
|
|
"failed");
|
|
return rv;
|
|
}
|
|
}
|
|
if (useCSS) {
|
|
if (blockOrHRElement->IsAnyOfHTMLElements(nsGkAtoms::table,
|
|
nsGkAtoms::hr)) {
|
|
nsresult rv = SetAttributeOrEquivalent(
|
|
blockOrHRElement, nsGkAtoms::align, aAlignType, false);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"EditorBase::SetAttributeOrEquivalent(nsGkAtoms::align) failed");
|
|
return rv;
|
|
}
|
|
} else {
|
|
nsStyledElement* styledBlockOrHRElement =
|
|
nsStyledElement::FromNode(blockOrHRElement);
|
|
if (NS_WARN_IF(!styledBlockOrHRElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// MOZ_KnownLive(*styledBlockOrHRElement): It's `blockOrHRElement
|
|
// which is OwningNonNull.
|
|
nsAutoString dummyCssValue;
|
|
nsresult rv = mCSSEditUtils->RemoveCSSInlineStyleWithTransaction(
|
|
MOZ_KnownLive(*styledBlockOrHRElement), nsGkAtoms::textAlign,
|
|
dummyCssValue);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"CSSEditUtils::RemoveCSSInlineStyleWithTransaction(nsGkAtoms::"
|
|
"textAlign) failed");
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
if (!blockOrHRElement->IsHTMLElement(nsGkAtoms::table)) {
|
|
// unless this is a table, look at children
|
|
nsresult rv = RemoveAlignFromDescendants(
|
|
blockOrHRElement, aAlignType, EditTarget::OnlyDescendantsExceptTable);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::RemoveAlignFromDescendants(EditTarget::"
|
|
"OnlyDescendantsExceptTable) failed");
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::EnsureHardLineBeginsWithFirstChildOf(
|
|
Element& aRemovingContainerElement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
nsIContent* firstEditableChild =
|
|
GetFirstEditableChild(aRemovingContainerElement);
|
|
if (!firstEditableChild) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsBlockElement(*firstEditableChild) ||
|
|
firstEditableChild->IsHTMLElement(nsGkAtoms::br)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIContent* previousEditableContent =
|
|
GetPriorHTMLSibling(&aRemovingContainerElement);
|
|
if (!previousEditableContent) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsBlockElement(*previousEditableContent) ||
|
|
previousEditableContent->IsHTMLElement(nsGkAtoms::br)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<Element> brElement = InsertBRElementWithTransaction(
|
|
EditorDOMPoint(&aRemovingContainerElement, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(brElement,
|
|
"HTMLEditor::InsertBRElementWithTransaction() failed");
|
|
return brElement ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsresult HTMLEditor::EnsureHardLineEndsWithLastChildOf(
|
|
Element& aRemovingContainerElement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
nsIContent* firstEditableContent =
|
|
GetLastEditableChild(aRemovingContainerElement);
|
|
if (!firstEditableContent) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsBlockElement(*firstEditableContent) ||
|
|
firstEditableContent->IsHTMLElement(nsGkAtoms::br)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIContent* nextEditableContent =
|
|
GetPriorHTMLSibling(&aRemovingContainerElement);
|
|
if (!nextEditableContent) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsBlockElement(*nextEditableContent) ||
|
|
nextEditableContent->IsHTMLElement(nsGkAtoms::br)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<Element> brElement = InsertBRElementWithTransaction(
|
|
EditorDOMPoint::AtEndOf(aRemovingContainerElement));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(brElement,
|
|
"HTMLEditor::InsertBRElementWithTransaction() failed");
|
|
return brElement ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsresult HTMLEditor::SetBlockElementAlign(Element& aBlockOrHRElement,
|
|
const nsAString& aAlignType,
|
|
EditTarget aEditTarget) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(HTMLEditUtils::IsBlockElement(aBlockOrHRElement) ||
|
|
aBlockOrHRElement.IsHTMLElement(nsGkAtoms::hr));
|
|
MOZ_ASSERT(IsCSSEnabled() ||
|
|
HTMLEditUtils::SupportsAlignAttr(aBlockOrHRElement));
|
|
|
|
if (!aBlockOrHRElement.IsHTMLElement(nsGkAtoms::table)) {
|
|
nsresult rv =
|
|
RemoveAlignFromDescendants(aBlockOrHRElement, aAlignType, aEditTarget);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::RemoveAlignFromDescendants() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
nsresult rv = SetAttributeOrEquivalent(&aBlockOrHRElement, nsGkAtoms::align,
|
|
aAlignType, false);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::SetAttributeOrEquivalent(nsGkAtoms::align) failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::ChangeMarginStart(Element& aElement,
|
|
ChangeMargin aChangeMargin) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
nsStaticAtom& marginProperty = MarginPropertyAtomForIndent(aElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
nsAutoString value;
|
|
DebugOnly<nsresult> rvIgnored =
|
|
CSSEditUtils::GetSpecifiedProperty(aElement, marginProperty, value);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rvIgnored),
|
|
"CSSEditUtils::GetSpecifiedProperty() failed, but ignored");
|
|
float f;
|
|
RefPtr<nsAtom> unit;
|
|
CSSEditUtils::ParseLength(value, &f, getter_AddRefs(unit));
|
|
if (!f) {
|
|
nsAutoString defaultLengthUnit;
|
|
CSSEditUtils::GetDefaultLengthUnit(defaultLengthUnit);
|
|
unit = NS_Atomize(defaultLengthUnit);
|
|
}
|
|
int8_t multiplier = aChangeMargin == ChangeMargin::Increase ? 1 : -1;
|
|
if (nsGkAtoms::in == unit) {
|
|
f += NS_EDITOR_INDENT_INCREMENT_IN * multiplier;
|
|
} else if (nsGkAtoms::cm == unit) {
|
|
f += NS_EDITOR_INDENT_INCREMENT_CM * multiplier;
|
|
} else if (nsGkAtoms::mm == unit) {
|
|
f += NS_EDITOR_INDENT_INCREMENT_MM * multiplier;
|
|
} else if (nsGkAtoms::pt == unit) {
|
|
f += NS_EDITOR_INDENT_INCREMENT_PT * multiplier;
|
|
} else if (nsGkAtoms::pc == unit) {
|
|
f += NS_EDITOR_INDENT_INCREMENT_PC * multiplier;
|
|
} else if (nsGkAtoms::em == unit) {
|
|
f += NS_EDITOR_INDENT_INCREMENT_EM * multiplier;
|
|
} else if (nsGkAtoms::ex == unit) {
|
|
f += NS_EDITOR_INDENT_INCREMENT_EX * multiplier;
|
|
} else if (nsGkAtoms::px == unit) {
|
|
f += NS_EDITOR_INDENT_INCREMENT_PX * multiplier;
|
|
} else if (nsGkAtoms::percentage == unit) {
|
|
f += NS_EDITOR_INDENT_INCREMENT_PERCENT * multiplier;
|
|
}
|
|
|
|
if (0 < f) {
|
|
if (nsStyledElement* styledElement = nsStyledElement::FromNode(&aElement)) {
|
|
nsAutoString newValue;
|
|
newValue.AppendFloat(f);
|
|
newValue.Append(nsDependentAtomString(unit));
|
|
// MOZ_KnownLive(*styledElement): It's aElement and its lifetime must
|
|
// be guaranteed by caller because of MOZ_CAN_RUN_SCRIPT method.
|
|
// MOZ_KnownLive(merginProperty): It's nsStaticAtom.
|
|
nsresult rv = mCSSEditUtils->SetCSSPropertyWithTransaction(
|
|
MOZ_KnownLive(*styledElement), MOZ_KnownLive(marginProperty),
|
|
newValue);
|
|
if (rv == NS_ERROR_EDITOR_DESTROYED) {
|
|
NS_WARNING(
|
|
"CSSEditUtils::SetCSSPropertyWithTransaction() destroyed the "
|
|
"editor");
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"CSSEditUtils::SetCSSPropertyWithTransaction() failed, but ignored");
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
if (nsStyledElement* styledElement = nsStyledElement::FromNode(&aElement)) {
|
|
// MOZ_KnownLive(*styledElement): It's aElement and its lifetime must
|
|
// be guaranteed by caller because of MOZ_CAN_RUN_SCRIPT method.
|
|
// MOZ_KnownLive(merginProperty): It's nsStaticAtom.
|
|
nsresult rv = mCSSEditUtils->RemoveCSSPropertyWithTransaction(
|
|
MOZ_KnownLive(*styledElement), MOZ_KnownLive(marginProperty), value);
|
|
if (rv == NS_ERROR_EDITOR_DESTROYED) {
|
|
NS_WARNING(
|
|
"CSSEditUtils::RemoveCSSPropertyWithTransaction() destroyed the "
|
|
"editor");
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"CSSEditUtils::RemoveCSSPropertyWithTransaction() failed, but ignored");
|
|
}
|
|
|
|
// Remove unnecessary divs
|
|
if (!aElement.IsHTMLElement(nsGkAtoms::div) ||
|
|
HTMLEditor::HasAttributes(&aElement)) {
|
|
return NS_OK;
|
|
}
|
|
// Don't touch editiong host nor node which is outside of it.
|
|
Element* editingHost = GetActiveEditingHost();
|
|
if (&aElement == editingHost ||
|
|
!aElement.IsInclusiveDescendantOf(editingHost)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult rv = RemoveContainerWithTransaction(aElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::RemoveContainerWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::SetSelectionToAbsoluteAsSubAction() {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this,
|
|
ScrollSelectionIntoView::Yes);
|
|
IgnoredErrorResult ignoredError;
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eSetPositionToAbsolute, nsIEditor::eNext,
|
|
ignoredError);
|
|
if (NS_WARN_IF(ignoredError.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED))) {
|
|
return EditActionResult(ignoredError.StealNSResult());
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"HTMLEditor::OnStartToHandleTopLevelEditSubAction() failed, but ignored");
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (result.Failed() || result.Canceled()) {
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::CanHandleHTMLEditSubAction() failed");
|
|
return result;
|
|
}
|
|
|
|
nsresult rv = EnsureNoPaddingBRElementForEmptyEditor();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"EditorBase::EnsureNoPaddingBRElementForEmptyEditor() "
|
|
"failed, but ignored");
|
|
|
|
if (NS_SUCCEEDED(rv) && SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = EnsureCaretNotAfterPaddingBRElement();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::EnsureCaretNotAfterPaddingBRElement() "
|
|
"failed, but ignored");
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsresult rv = PrepareInlineStylesForCaret();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditgor::PrepareInlineStylesForCaret() failed, but ignored");
|
|
}
|
|
}
|
|
|
|
RefPtr<Element> focusElement = GetSelectionContainerElement();
|
|
if (focusElement && HTMLEditUtils::IsImage(focusElement)) {
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = std::move(focusElement);
|
|
return EditActionHandled();
|
|
}
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeExtendSelectionToHardLineEdgesForBlockEditAction() "
|
|
"failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
}
|
|
|
|
// XXX Is this right thing?
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = nullptr;
|
|
|
|
RefPtr<Element> divElement;
|
|
rv = MoveSelectedContentsToDivElementToMakeItAbsolutePosition(
|
|
address_of(divElement));
|
|
// MoveSelectedContentsToDivElementToMakeItAbsolutePosition() may restore
|
|
// selection with AutoSelectionRestorer. Therefore, the editor might have
|
|
// already been destroyed now.
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MoveSelectedContentsToDivElementToMakeItAbsolutePosition()"
|
|
" failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
if (IsSelectionRangeContainerNotContent()) {
|
|
NS_WARNING("Mutation event listener might have changed the selection");
|
|
return EditActionHandled(NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE);
|
|
}
|
|
|
|
rv = MaybeInsertPaddingBRElementForEmptyLastLineAtSelection();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
if (!divElement) {
|
|
return EditActionHandled();
|
|
}
|
|
|
|
rv = SetPositionToAbsoluteOrStatic(*divElement, true);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::SetPositionToAbsoluteOrStatic() failed");
|
|
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = std::move(divElement);
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
nsresult HTMLEditor::MoveSelectedContentsToDivElementToMakeItAbsolutePosition(
|
|
RefPtr<Element>* aTargetElement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aTargetElement);
|
|
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
|
|
AutoTArray<RefPtr<nsRange>, 4> arrayOfRanges;
|
|
GetSelectionRangesExtendedToHardLineStartAndEnd(
|
|
arrayOfRanges, EditSubAction::eSetPositionToAbsolute);
|
|
|
|
// Use these ranges to construct a list of nodes to act on.
|
|
AutoTArray<OwningNonNull<nsIContent>, 64> arrayOfContents;
|
|
nsresult rv = SplitInlinesAndCollectEditTargetNodes(
|
|
arrayOfRanges, arrayOfContents, EditSubAction::eSetPositionToAbsolute,
|
|
CollectNonEditableNodes::Yes);
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING(
|
|
"HTMLEditor::SplitInlinesAndCollectEditTargetNodes("
|
|
"eSetPositionToAbsolute, CollectNonEditableNodes::Yes) failed");
|
|
return rv;
|
|
}
|
|
|
|
// If there is no visible and editable nodes in the edit targets, make an
|
|
// empty block.
|
|
// XXX Isn't this odd if there are only non-editable visible nodes?
|
|
if (IsEmptyOneHardLine(arrayOfContents)) {
|
|
const nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorDOMPoint atCaret(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atCaret.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Make sure we can put a block here.
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(*nsGkAtoms::div, atCaret);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction(nsGkAtoms::"
|
|
"div) failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
RefPtr<Element> newDivElement = CreateNodeWithTransaction(
|
|
*nsGkAtoms::div, splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!newDivElement) {
|
|
NS_WARNING(
|
|
"EditorBase::CreateNodeWithTransaction(nsGkAtoms::div) failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// Delete anything that was in the list of nodes
|
|
// XXX We don't need to remove items from the array.
|
|
while (!arrayOfContents.IsEmpty()) {
|
|
OwningNonNull<nsIContent>& curNode = arrayOfContents[0];
|
|
// MOZ_KnownLive because 'arrayOfContents' is guaranteed to keep it alive.
|
|
nsresult rv = DeleteNodeWithTransaction(MOZ_KnownLive(*curNode));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
arrayOfContents.RemoveElementAt(0);
|
|
}
|
|
// Don't restore the selection
|
|
restoreSelectionLater.Abort();
|
|
nsresult rv = CollapseSelectionToStartOf(*newDivElement);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::CollapseSelectionToStartOf() failed");
|
|
*aTargetElement = std::move(newDivElement);
|
|
return rv;
|
|
}
|
|
|
|
// `<div>` element to be positioned absolutely. This may have already
|
|
// existed or newly created by this method.
|
|
RefPtr<Element> targetDivElement;
|
|
// Newly created list element for moving selected list item elements into
|
|
// targetDivElement. I.e., this is created in the `<div>` element.
|
|
RefPtr<Element> createdListElement;
|
|
// If we handle a parent list item element, this is set to it. In such case,
|
|
// we should handle its children again.
|
|
RefPtr<Element> handledListItemElement;
|
|
for (OwningNonNull<nsIContent>& content : arrayOfContents) {
|
|
// Here's where we actually figure out what to do.
|
|
EditorDOMPoint atContent(content);
|
|
if (NS_WARN_IF(!atContent.IsSet())) {
|
|
return NS_ERROR_FAILURE; // XXX not continue??
|
|
}
|
|
|
|
// Ignore all non-editable nodes. Leave them be.
|
|
if (!EditorUtils::IsEditableContent(content, EditorType::HTML)) {
|
|
continue;
|
|
}
|
|
|
|
// If current node is a child of a list element, we need another list
|
|
// element in absolute-positioned `<div>` element to avoid non-selected
|
|
// list items are moved into the `<div>` element.
|
|
if (HTMLEditUtils::IsAnyListElement(atContent.GetContainer())) {
|
|
// If we cannot move current node to created list element, we need a
|
|
// list element in the target `<div>` element for the destination.
|
|
// Therefore, duplicate same list element into the target `<div>`
|
|
// element.
|
|
nsIContent* previousEditableContent =
|
|
createdListElement ? GetPriorHTMLSibling(content) : nullptr;
|
|
if (!createdListElement ||
|
|
(previousEditableContent &&
|
|
previousEditableContent != createdListElement)) {
|
|
nsAtom* ULOrOLOrDLTagName =
|
|
atContent.GetContainer()->NodeInfo()->NameAtom();
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(
|
|
MOZ_KnownLive(*ULOrOLOrDLTagName), atContent);
|
|
if (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
if (!targetDivElement) {
|
|
targetDivElement = CreateNodeWithTransaction(
|
|
*nsGkAtoms::div, splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!targetDivElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
createdListElement = CreateNodeWithTransaction(
|
|
MOZ_KnownLive(*ULOrOLOrDLTagName),
|
|
EditorDOMPoint::AtEndOf(targetDivElement));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!createdListElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
// Move current node (maybe, assumed as a list item element) into the
|
|
// new list element in the target `<div>` element to be positioned
|
|
// absolutely.
|
|
// MOZ_KnownLive because 'arrayOfContents' is guaranteed to keep it alive.
|
|
nsresult rv = MoveNodeToEndWithTransaction(MOZ_KnownLive(content),
|
|
*createdListElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// If contents in a list item element is selected, we should move current
|
|
// node into the target `<div>` element with the list item element itself
|
|
// because we want to keep indent level of the contents.
|
|
if (RefPtr<Element> listItemElement =
|
|
GetNearestAncestorListItemElement(content)) {
|
|
if (handledListItemElement == listItemElement) {
|
|
// Current node has already been moved into the `<div>` element.
|
|
continue;
|
|
}
|
|
// If we cannot move the list item element into created list element,
|
|
// we need another list element in the target `<div>` element.
|
|
nsIContent* previousEditableContent =
|
|
createdListElement ? GetPriorHTMLSibling(listItemElement) : nullptr;
|
|
if (!createdListElement ||
|
|
(previousEditableContent &&
|
|
previousEditableContent != createdListElement)) {
|
|
EditorDOMPoint atListItem(listItemElement);
|
|
if (NS_WARN_IF(!atListItem.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// XXX If content is the listItemElement and not in a list element,
|
|
// we duplicate wrong element into the target `<div>` element.
|
|
nsAtom* containerName =
|
|
atListItem.GetContainer()->NodeInfo()->NameAtom();
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(
|
|
MOZ_KnownLive(*containerName), atListItem);
|
|
if (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
if (!targetDivElement) {
|
|
targetDivElement = CreateNodeWithTransaction(
|
|
*nsGkAtoms::div, EditorDOMPoint(atListItem.GetContainer()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!targetDivElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
// XXX So, createdListElement may be set to a non-list element.
|
|
createdListElement = CreateNodeWithTransaction(
|
|
MOZ_KnownLive(*containerName),
|
|
EditorDOMPoint::AtEndOf(targetDivElement));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!createdListElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
// Move current list item element into the createdListElement (could be
|
|
// non-list element due to the above bug) in a candidate `<div>` element
|
|
// to be positioned absolutely.
|
|
nsresult rv =
|
|
MoveNodeToEndWithTransaction(*listItemElement, *createdListElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
handledListItemElement = std::move(listItemElement);
|
|
continue;
|
|
}
|
|
|
|
if (!targetDivElement) {
|
|
// If we meet a `<div>` element, use it as the absolute-position
|
|
// container.
|
|
// XXX This looks odd. If there are 2 or more `<div>` elements are
|
|
// selected, first found `<div>` element will have all other
|
|
// selected nodes.
|
|
if (content->IsHTMLElement(nsGkAtoms::div)) {
|
|
targetDivElement = content->AsElement();
|
|
MOZ_ASSERT(!createdListElement);
|
|
MOZ_ASSERT(!handledListItemElement);
|
|
continue;
|
|
}
|
|
// Otherwise, create new `<div>` element to be positioned absolutely
|
|
// and to contain all selected nodes.
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(*nsGkAtoms::div,
|
|
atContent);
|
|
if (splitNodeResult.Failed()) {
|
|
NS_WARNING(
|
|
"HTMLEditor::MaybeSplitAncestorsForInsertWithTransaction(nsGkAtoms:"
|
|
":div) failed");
|
|
return splitNodeResult.Rv();
|
|
}
|
|
targetDivElement = CreateNodeWithTransaction(
|
|
*nsGkAtoms::div, splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (!targetDivElement) {
|
|
NS_WARNING(
|
|
"EditorBase::CreateNodeWithTransaction(nsGkAtoms::div) failed");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
// MOZ_KnownLive because 'arrayOfContents' is guaranteed to keep it alive.
|
|
nsresult rv =
|
|
MoveNodeToEndWithTransaction(MOZ_KnownLive(content), *targetDivElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::MoveNodeToEndWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
// Forget createdListElement, if any
|
|
createdListElement = nullptr;
|
|
}
|
|
*aTargetElement = std::move(targetDivElement);
|
|
return NS_OK;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::SetSelectionToStaticAsSubAction() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this,
|
|
ScrollSelectionIntoView::Yes);
|
|
IgnoredErrorResult ignoredError;
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eSetPositionToStatic, nsIEditor::eNext,
|
|
ignoredError);
|
|
if (NS_WARN_IF(ignoredError.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED))) {
|
|
return EditActionResult(ignoredError.StealNSResult());
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"HTMLEditor::OnStartToHandleTopLevelEditSubAction() failed, but ignored");
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (result.Failed() || result.Canceled()) {
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::CanHandleHTMLEditSubAction() failed");
|
|
return result;
|
|
}
|
|
|
|
nsresult rv = EnsureNoPaddingBRElementForEmptyEditor();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"EditorBase::EnsureNoPaddingBRElementForEmptyEditor() "
|
|
"failed, but ignored");
|
|
|
|
if (NS_SUCCEEDED(rv) && SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = EnsureCaretNotAfterPaddingBRElement();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::EnsureCaretNotAfterPaddingBRElement() "
|
|
"failed, but ignored");
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsresult rv = PrepareInlineStylesForCaret();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::PrepareInlineStylesForCaret() failed, but ignored");
|
|
}
|
|
}
|
|
|
|
RefPtr<Element> element = GetAbsolutelyPositionedSelectionContainer();
|
|
if (!element) {
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING(
|
|
"HTMLEditor::GetAbsolutelyPositionedSelectionContainer() returned "
|
|
"nullptr");
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
{
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
|
|
nsresult rv = SetPositionToAbsoluteOrStatic(*element, false);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_FAILED(rv)) {
|
|
NS_WARNING("HTMLEditor::SetPositionToAbsoluteOrStatic() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
}
|
|
|
|
// Restoring Selection might cause destroying the HTML editor.
|
|
return NS_WARN_IF(Destroyed()) ? EditActionHandled(NS_ERROR_EDITOR_DESTROYED)
|
|
: EditActionHandled(NS_OK);
|
|
}
|
|
|
|
EditActionResult HTMLEditor::AddZIndexAsSubAction(int32_t aChange) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this,
|
|
ScrollSelectionIntoView::Yes);
|
|
IgnoredErrorResult ignoredError;
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this,
|
|
aChange < 0 ? EditSubAction::eDecreaseZIndex
|
|
: EditSubAction::eIncreaseZIndex,
|
|
nsIEditor::eNext, ignoredError);
|
|
if (NS_WARN_IF(ignoredError.ErrorCodeIs(NS_ERROR_EDITOR_DESTROYED))) {
|
|
return EditActionResult(ignoredError.StealNSResult());
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"HTMLEditor::OnStartToHandleTopLevelEditSubAction() failed, but ignored");
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (result.Failed() || result.Canceled()) {
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HTMLEditor::CanHandleHTMLEditSubAction() failed");
|
|
return result;
|
|
}
|
|
|
|
nsresult rv = EnsureNoPaddingBRElementForEmptyEditor();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"EditorBase::EnsureNoPaddingBRElementForEmptyEditor() "
|
|
"failed, but ignored");
|
|
|
|
if (NS_SUCCEEDED(rv) && SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = EnsureCaretNotAfterPaddingBRElement();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::EnsureCaretNotAfterPaddingBRElement() "
|
|
"failed, but ignored");
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsresult rv = PrepareInlineStylesForCaret();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"HTMLEditor::PrepareInlineStylesForCaret() failed, but ignored");
|
|
}
|
|
}
|
|
|
|
RefPtr<Element> absolutelyPositionedElement =
|
|
GetAbsolutelyPositionedSelectionContainer();
|
|
if (!absolutelyPositionedElement) {
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING(
|
|
"HTMLEditor::GetAbsolutelyPositionedSelectionContainer() returned "
|
|
"nullptr");
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
nsStyledElement* absolutelyPositionedStyledElement =
|
|
nsStyledElement::FromNode(absolutelyPositionedElement);
|
|
if (NS_WARN_IF(!absolutelyPositionedStyledElement)) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
{
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
|
|
// MOZ_KnownLive(*absolutelyPositionedStyledElement): It's
|
|
// absolutelyPositionedElement whose type is RefPtr.
|
|
Result<int32_t, nsresult> result = AddZIndexWithTransaction(
|
|
MOZ_KnownLive(*absolutelyPositionedStyledElement), aChange);
|
|
if (result.isErr()) {
|
|
NS_WARNING("HTMLEditor::AddZIndexWithTransaction() failed");
|
|
return EditActionHandled(result.unwrapErr());
|
|
}
|
|
}
|
|
|
|
// Restoring Selection might cause destroying the HTML editor.
|
|
return NS_WARN_IF(Destroyed()) ? EditActionHandled(NS_ERROR_EDITOR_DESTROYED)
|
|
: EditActionHandled(NS_OK);
|
|
}
|
|
|
|
nsresult HTMLEditor::OnDocumentModified() {
|
|
if (mPendingDocumentModifiedRunner) {
|
|
return NS_OK; // We've already posted same runnable into the queue.
|
|
}
|
|
mPendingDocumentModifiedRunner = NewRunnableMethod(
|
|
"HTMLEditor::OnModifyDocument", this, &HTMLEditor::OnModifyDocument);
|
|
nsContentUtils::AddScriptRunner(do_AddRef(mPendingDocumentModifiedRunner));
|
|
// Be aware, if OnModifyDocument() may be called synchronously, the
|
|
// editor might have been destroyed here.
|
|
return NS_WARN_IF(Destroyed()) ? NS_ERROR_EDITOR_DESTROYED : NS_OK;
|
|
}
|
|
|
|
} // namespace mozilla
|