mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-19 16:25:38 +00:00
75507785e6
Differential Revision: https://phabricator.services.mozilla.com/D45491 --HG-- extra : moz-landing-system : lando
11332 lines
418 KiB
C++
11332 lines
418 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 sw=2 et tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "HTMLEditRules.h"
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#include <stdlib.h>
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#include "HTMLEditUtils.h"
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#include "TextEditUtils.h"
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#include "WSRunObject.h"
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#include "mozilla/Assertions.h"
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#include "mozilla/ContentIterator.h"
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#include "mozilla/CSSEditUtils.h"
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#include "mozilla/EditAction.h"
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#include "mozilla/EditorDOMPoint.h"
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#include "mozilla/EditorUtils.h"
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#include "mozilla/HTMLEditor.h"
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#include "mozilla/MathAlgorithms.h"
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#include "mozilla/Move.h"
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#include "mozilla/mozalloc.h"
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#include "mozilla/OwningNonNull.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/RangeUtils.h"
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#include "mozilla/TextComposition.h"
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#include "mozilla/UniquePtr.h"
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#include "mozilla/Unused.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/HTMLBRElement.h"
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#include "mozilla/dom/RangeBinding.h"
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#include "mozilla/dom/Selection.h"
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#include "mozilla/dom/StaticRange.h"
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#include "nsAString.h"
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#include "nsAlgorithm.h"
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#include "nsCRT.h"
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#include "nsCRTGlue.h"
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#include "nsComponentManagerUtils.h"
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#include "nsContentUtils.h"
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#include "nsDebug.h"
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#include "nsError.h"
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#include "nsGkAtoms.h"
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#include "nsAtom.h"
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#include "nsHTMLDocument.h"
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#include "nsIContent.h"
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#include "nsID.h"
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#include "nsIFrame.h"
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#include "nsIHTMLAbsPosEditor.h"
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#include "nsINode.h"
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#include "nsLiteralString.h"
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#include "nsRange.h"
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#include "nsReadableUtils.h"
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#include "nsString.h"
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#include "nsStringFwd.h"
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#include "nsTArray.h"
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#include "nsTextNode.h"
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#include "nsThreadUtils.h"
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#include "nsUnicharUtils.h"
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#include <algorithm>
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// Workaround for windows headers
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#ifdef SetProp
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# undef SetProp
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#endif
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class nsISupports;
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namespace mozilla {
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using namespace dom;
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enum { kLonely = 0, kPrevSib = 1, kNextSib = 2, kBothSibs = 3 };
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/********************************************************
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* first some helpful functors we will use
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********************************************************/
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static bool IsStyleCachePreservingSubAction(EditSubAction aEditSubAction) {
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switch (aEditSubAction) {
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case EditSubAction::eDeleteSelectedContent:
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case EditSubAction::eInsertLineBreak:
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case EditSubAction::eInsertParagraphSeparator:
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case EditSubAction::eCreateOrChangeList:
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case EditSubAction::eIndent:
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case EditSubAction::eOutdent:
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case EditSubAction::eSetOrClearAlignment:
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case EditSubAction::eCreateOrRemoveBlock:
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case EditSubAction::eMergeBlockContents:
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case EditSubAction::eRemoveList:
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case EditSubAction::eCreateOrChangeDefinitionListItem:
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case EditSubAction::eInsertElement:
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case EditSubAction::eInsertQuotation:
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case EditSubAction::eInsertQuotedText:
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return true;
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default:
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return false;
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}
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}
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class TableCellAndListItemFunctor final : public BoolDomIterFunctor {
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public:
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// Used to build list of all li's, td's & th's iterator covers
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virtual bool operator()(nsINode* aNode) const override {
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return HTMLEditUtils::IsTableCell(aNode) ||
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HTMLEditUtils::IsListItem(aNode);
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}
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};
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class BRNodeFunctor final : public BoolDomIterFunctor {
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public:
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virtual bool operator()(nsINode* aNode) const override {
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return aNode->IsHTMLElement(nsGkAtoms::br);
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}
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};
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class EmptyEditableFunctor final : public BoolDomIterFunctor {
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public:
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explicit EmptyEditableFunctor(HTMLEditor* aHTMLEditor)
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: mHTMLEditor(aHTMLEditor) {}
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virtual bool operator()(nsINode* aNode) const override {
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if (mHTMLEditor->IsEditable(aNode) &&
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(HTMLEditUtils::IsListItem(aNode) ||
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HTMLEditUtils::IsTableCellOrCaption(*aNode))) {
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bool bIsEmptyNode;
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nsresult rv =
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mHTMLEditor->IsEmptyNode(aNode, &bIsEmptyNode, false, false);
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NS_ENSURE_SUCCESS(rv, false);
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if (bIsEmptyNode) {
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return true;
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}
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}
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return false;
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}
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protected:
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HTMLEditor* mHTMLEditor;
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};
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class MOZ_RAII AutoSetTemporaryAncestorLimiter final {
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MOZ_DECL_USE_GUARD_OBJECT_NOTIFIER;
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public:
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explicit AutoSetTemporaryAncestorLimiter(
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HTMLEditor& aHTMLEditor, Selection& aSelection,
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nsINode& aStartPointNode MOZ_GUARD_OBJECT_NOTIFIER_PARAM) {
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MOZ_GUARD_OBJECT_NOTIFIER_INIT;
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if (aSelection.GetAncestorLimiter()) {
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return;
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}
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Element* root = aHTMLEditor.FindSelectionRoot(&aStartPointNode);
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if (root) {
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aHTMLEditor.InitializeSelectionAncestorLimit(*root);
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mSelection = &aSelection;
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}
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}
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~AutoSetTemporaryAncestorLimiter() {
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if (mSelection) {
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mSelection->SetAncestorLimiter(nullptr);
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}
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}
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private:
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RefPtr<Selection> mSelection;
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};
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/********************************************************
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* mozilla::HTMLEditRules
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********************************************************/
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template void HTMLEditor::SelectBRElementIfCollapsedInEmptyBlock(
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RangeBoundary& aStartRef, RangeBoundary& aEndRef);
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template void HTMLEditor::SelectBRElementIfCollapsedInEmptyBlock(
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RawRangeBoundary& aStartRef, RangeBoundary& aEndRef);
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template void HTMLEditor::SelectBRElementIfCollapsedInEmptyBlock(
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RangeBoundary& aStartRef, RawRangeBoundary& aEndRef);
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template void HTMLEditor::SelectBRElementIfCollapsedInEmptyBlock(
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RawRangeBoundary& aStartRef, RawRangeBoundary& aEndRef);
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template already_AddRefed<nsRange>
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HTMLEditor::CreateRangeIncludingAdjuscentWhiteSpaces(
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const RangeBoundary& aStartRef, const RangeBoundary& aEndRef);
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template already_AddRefed<nsRange>
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HTMLEditor::CreateRangeIncludingAdjuscentWhiteSpaces(
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const RawRangeBoundary& aStartRef, const RangeBoundary& aEndRef);
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template already_AddRefed<nsRange>
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HTMLEditor::CreateRangeIncludingAdjuscentWhiteSpaces(
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const RangeBoundary& aStartRef, const RawRangeBoundary& aEndRef);
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template already_AddRefed<nsRange>
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HTMLEditor::CreateRangeIncludingAdjuscentWhiteSpaces(
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const RawRangeBoundary& aStartRef, const RawRangeBoundary& aEndRef);
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template already_AddRefed<nsRange>
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HTMLEditor::CreateRangeExtendedToHardLineStartAndEnd(
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const RangeBoundary& aStartRef, const RangeBoundary& aEndRef,
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EditSubAction aEditSubAction);
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template already_AddRefed<nsRange>
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HTMLEditor::CreateRangeExtendedToHardLineStartAndEnd(
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const RawRangeBoundary& aStartRef, const RangeBoundary& aEndRef,
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EditSubAction aEditSubAction);
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template already_AddRefed<nsRange>
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HTMLEditor::CreateRangeExtendedToHardLineStartAndEnd(
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const RangeBoundary& aStartRef, const RawRangeBoundary& aEndRef,
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EditSubAction aEditSubAction);
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template already_AddRefed<nsRange>
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HTMLEditor::CreateRangeExtendedToHardLineStartAndEnd(
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const RawRangeBoundary& aStartRef, const RawRangeBoundary& aEndRef,
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EditSubAction aEditSubAction);
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template EditorDOMPoint HTMLEditor::GetWhiteSpaceEndPoint(
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const RangeBoundary& aPoint, ScanDirection aScanDirection);
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template EditorDOMPoint HTMLEditor::GetWhiteSpaceEndPoint(
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const RawRangeBoundary& aPoint, ScanDirection aScanDirection);
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template EditorDOMPoint HTMLEditor::GetCurrentHardLineStartPoint(
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const RangeBoundary& aPoint, EditSubAction aEditSubAction);
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template EditorDOMPoint HTMLEditor::GetCurrentHardLineStartPoint(
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const RawRangeBoundary& aPoint, EditSubAction aEditSubAction);
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template EditorDOMPoint HTMLEditor::GetCurrentHardLineEndPoint(
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const RangeBoundary& aPoint);
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template EditorDOMPoint HTMLEditor::GetCurrentHardLineEndPoint(
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const RawRangeBoundary& aPoint);
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template Element* HTMLEditor::GetInvisibleBRElementAt(
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const EditorDOMPoint& aPoint);
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template Element* HTMLEditor::GetInvisibleBRElementAt(
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const EditorRawDOMPoint& aPoint);
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template nsIContent* HTMLEditor::FindNearEditableContent(
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const EditorDOMPoint& aPoint, nsIEditor::EDirection aDirection);
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template nsIContent* HTMLEditor::FindNearEditableContent(
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const EditorRawDOMPoint& aPoint, nsIEditor::EDirection aDirection);
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HTMLEditRules::HTMLEditRules() : mHTMLEditor(nullptr), mInitialized(false) {
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mIsHTMLEditRules = true;
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}
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nsresult HTMLEditRules::Init(TextEditor* aTextEditor) {
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if (NS_WARN_IF(!aTextEditor) || NS_WARN_IF(!aTextEditor->AsHTMLEditor())) {
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return NS_ERROR_INVALID_ARG;
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}
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mHTMLEditor = aTextEditor->AsHTMLEditor();
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if (NS_WARN_IF(!mHTMLEditor)) {
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return NS_ERROR_FAILURE;
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}
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AutoSafeEditorData setData(*this, *mHTMLEditor);
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nsresult rv = TextEditRules::Init(aTextEditor);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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if (NS_WARN_IF(!mHTMLEditor)) {
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return NS_ERROR_FAILURE;
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}
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Element* bodyOrDocumentElement = HTMLEditorRef().GetRoot();
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if (NS_WARN_IF(!bodyOrDocumentElement && !HTMLEditorRef().GetDocument())) {
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return NS_ERROR_FAILURE;
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}
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// make a utility range for use by the listenter
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if (bodyOrDocumentElement) {
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nsresult rv =
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MOZ_KnownLive(HTMLEditorRef())
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.InsertBRElementToEmptyListItemsAndTableCellsInRange(
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RawRangeBoundary(bodyOrDocumentElement, 0),
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RawRangeBoundary(bodyOrDocumentElement,
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bodyOrDocumentElement->GetChildCount()));
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if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
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return NS_ERROR_EDITOR_DESTROYED;
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}
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NS_WARNING_ASSERTION(
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NS_SUCCEEDED(rv),
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"Failed to insert <br> elements to empty list items and table cells");
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}
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mInitialized = true; // Start to handle edit sub-actions.
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return NS_OK;
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}
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nsresult HTMLEditRules::DetachEditor() {
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mHTMLEditor = nullptr;
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return TextEditRules::DetachEditor();
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}
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nsresult HTMLEditRules::BeforeEdit() {
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MOZ_ASSERT(!mIsHandling);
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if (NS_WARN_IF(!CanHandleEditAction())) {
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return NS_ERROR_EDITOR_DESTROYED;
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}
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if (!mInitialized) {
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return NS_OK; // We should do nothing if we're being initialized.
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}
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#ifdef DEBUG
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mIsHandling = true;
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#endif // #ifdef DEBUG
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AutoSafeEditorData setData(*this, *mHTMLEditor);
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// Remember where our selection was before edit action took place:
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if (HTMLEditorRef().GetCompositionStartPoint().IsSet()) {
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// If there is composition string, let's remember current composition
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// range.
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HTMLEditorRef().TopLevelEditSubActionDataRef().mSelectedRange->StoreRange(
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HTMLEditorRef().GetCompositionStartPoint(),
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HTMLEditorRef().GetCompositionEndPoint());
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} else {
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// Get the selection location
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if (!SelectionRefPtr()->RangeCount()) {
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return NS_ERROR_UNEXPECTED;
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}
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HTMLEditorRef().TopLevelEditSubActionDataRef().mSelectedRange->StoreRange(
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SelectionRefPtr()->GetRangeAt(0));
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}
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nsCOMPtr<nsINode> selStartNode = HTMLEditorRef()
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.TopLevelEditSubActionDataRef()
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.mSelectedRange->mStartContainer;
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nsCOMPtr<nsINode> selEndNode = HTMLEditorRef()
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.TopLevelEditSubActionDataRef()
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.mSelectedRange->mEndContainer;
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// Register with range updater to track this as we perturb the doc
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HTMLEditorRef().RangeUpdaterRef().RegisterRangeItem(
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HTMLEditorRef().TopLevelEditSubActionDataRef().mSelectedRange);
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// Remember current inline styles for deletion and normal insertion ops
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bool cacheInlineStyles;
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switch (HTMLEditorRef().GetTopLevelEditSubAction()) {
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case EditSubAction::eInsertText:
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case EditSubAction::eInsertTextComingFromIME:
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case EditSubAction::eDeleteSelectedContent:
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cacheInlineStyles = true;
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break;
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default:
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cacheInlineStyles = IsStyleCachePreservingSubAction(
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HTMLEditorRef().GetTopLevelEditSubAction());
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break;
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}
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if (cacheInlineStyles) {
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nsCOMPtr<nsINode> selNode =
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HTMLEditorRef().GetDirectionOfTopLevelEditSubAction() ==
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nsIEditor::eNext
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? selEndNode
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: selStartNode;
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if (NS_WARN_IF(!selNode)) {
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return NS_ERROR_FAILURE;
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}
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nsresult rv = MOZ_KnownLive(HTMLEditorRef()).CacheInlineStyles(*selNode);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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}
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// Stabilize the document against contenteditable count changes
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Document* doc = HTMLEditorRef().GetDocument();
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if (NS_WARN_IF(!doc)) {
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return NS_ERROR_FAILURE;
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}
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if (doc->GetEditingState() == Document::EditingState::eContentEditable) {
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doc->ChangeContentEditableCount(nullptr, +1);
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HTMLEditorRef()
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.TopLevelEditSubActionDataRef()
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.mRestoreContentEditableCount = true;
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}
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// Check that selection is in subtree defined by body node
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nsresult rv =
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MOZ_KnownLive(HTMLEditorRef()).EnsureSelectionInBodyOrDocumentElement();
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if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
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return NS_ERROR_EDITOR_DESTROYED;
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}
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NS_WARNING_ASSERTION(
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NS_SUCCEEDED(rv),
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"EnsureSelectionInBodyOrDocumentElement() failed, but ignored");
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return NS_OK;
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}
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nsresult HTMLEditRules::AfterEdit() {
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if (NS_WARN_IF(!CanHandleEditAction())) {
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return NS_ERROR_EDITOR_DESTROYED;
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}
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if (!mInitialized) {
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return NS_OK; // We should do nothing if we're being initialized.
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}
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#ifdef DEBUG
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MOZ_ASSERT(mIsHandling);
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mIsHandling = false;
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#endif // #ifdef DEBUG
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AutoSafeEditorData setData(*this, *mHTMLEditor);
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// Do all the tricky stuff
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nsresult rv = MOZ_KnownLive(HTMLEditorRef())
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.OnEndHandlingTopLevelEditSubActionInternal();
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// Perhaps, we need to do the following jobs even if the editor has been
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// destroyed since they adjust some states of HTML document but don't
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// modify the DOM tree nor Selection.
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// Free up selectionState range item
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HTMLEditorRef().RangeUpdaterRef().DropRangeItem(
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HTMLEditorRef().TopLevelEditSubActionDataRef().mSelectedRange);
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// Reset the contenteditable count to its previous value
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if (HTMLEditorRef()
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.TopLevelEditSubActionDataRef()
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.mRestoreContentEditableCount) {
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Document* doc = HTMLEditorRef().GetDocument();
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if (NS_WARN_IF(!doc)) {
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return NS_ERROR_FAILURE;
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}
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if (doc->GetEditingState() == Document::EditingState::eContentEditable) {
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doc->ChangeContentEditableCount(nullptr, -1);
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}
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}
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NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
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"OnEndHandlingTopLevelEditSubActionInternal() failed");
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return rv;
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}
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nsresult HTMLEditor::OnEndHandlingTopLevelEditSubActionInternal() {
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MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
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nsresult rv = EnsureSelectionInBodyOrDocumentElement();
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if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
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return NS_ERROR_EDITOR_DESTROYED;
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}
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NS_WARNING_ASSERTION(
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NS_SUCCEEDED(rv),
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"EnsureSelectionInBodyOrDocumentElement() failed, but ignored");
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switch (GetTopLevelEditSubAction()) {
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case EditSubAction::eReplaceHeadWithHTMLSource:
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case EditSubAction::eCreatePaddingBRElementForEmptyEditor:
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return NS_OK;
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default:
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break;
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}
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if (TopLevelEditSubActionDataRef().mChangedRange->IsPositioned() &&
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GetTopLevelEditSubAction() != EditSubAction::eUndo &&
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GetTopLevelEditSubAction() != EditSubAction::eRedo) {
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// don't let any txns in here move the selection around behind our back.
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// Note that this won't prevent explicit selection setting from working.
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AutoTransactionsConserveSelection dontChangeMySelection(*this);
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switch (GetTopLevelEditSubAction()) {
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case EditSubAction::eInsertText:
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case EditSubAction::eInsertTextComingFromIME:
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case EditSubAction::eInsertLineBreak:
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case EditSubAction::eInsertParagraphSeparator:
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case EditSubAction::eDeleteText: {
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// XXX We should investigate whether this is really needed because it
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// seems that the following code does not handle the whitespaces.
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RefPtr<nsRange> extendedChangedRange =
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CreateRangeIncludingAdjuscentWhiteSpaces(
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*TopLevelEditSubActionDataRef().mChangedRange);
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if (extendedChangedRange) {
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MOZ_ASSERT(extendedChangedRange->IsPositioned());
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// Use extended range temporarily.
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TopLevelEditSubActionDataRef().mChangedRange =
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std::move(extendedChangedRange);
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}
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break;
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}
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default: {
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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) {
|
|
nsresult rv = InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
|
|
EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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),
|
|
"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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// clean up any empty nodes in the selection
|
|
rv = RemoveEmptyNodesIn(
|
|
MOZ_KnownLive(*TopLevelEditSubActionDataRef().mChangedRange));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
// attempt to transform any unneeded nbsp's into spaces after doing various
|
|
// operations
|
|
switch (GetTopLevelEditSubAction()) {
|
|
case EditSubAction::eInsertText:
|
|
case EditSubAction::eInsertTextComingFromIME:
|
|
case EditSubAction::eDeleteSelectedContent:
|
|
case EditSubAction::eInsertLineBreak:
|
|
case EditSubAction::eInsertParagraphSeparator:
|
|
case EditSubAction::ePasteHTMLContent:
|
|
case EditSubAction::eInsertHTMLSource: {
|
|
// TODO: Temporarily, WSRunObject replaces ASCII whitespaces with NPSPs
|
|
// and then, we'll replace them with ASCII whitespaces 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 = WSRunObject(this, pointToAdjust).AdjustWhitespace();
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
// also do this for original selection endpoints.
|
|
// XXX Hmm, if `AdjustWhitespace()` runs mutation event listener
|
|
// and that causes changing `mSelectedRange`, what we should do?
|
|
if (NS_WARN_IF(
|
|
!TopLevelEditSubActionDataRef().mSelectedRange->IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
WSRunObject(
|
|
this,
|
|
TopLevelEditSubActionDataRef().mSelectedRange->StartRawPoint())
|
|
.AdjustWhitespace();
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
// we only need to handle old selection endpoint if it was different
|
|
// from start
|
|
if (TopLevelEditSubActionDataRef().mSelectedRange->IsCollapsed()) {
|
|
WSRunObject(
|
|
this,
|
|
TopLevelEditSubActionDataRef().mSelectedRange->EndRawPoint())
|
|
.AdjustWhitespace();
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
}
|
|
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),
|
|
"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_WARN_IF(NS_FAILED(rv))) {
|
|
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) {
|
|
mTypeInState->UpdateSelState(SelectionRefPtr());
|
|
rv = ReapplyCachedStyles();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
TopLevelEditSubActionDataRef().mCachedInlineStyles.Clear();
|
|
}
|
|
}
|
|
|
|
rv = HandleInlineSpellCheck(
|
|
TopLevelEditSubActionDataRef().mSelectedRange->StartPoint(),
|
|
TopLevelEditSubActionDataRef().mChangedRange);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
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();
|
|
}
|
|
|
|
nsRange* range = SelectionRefPtr()->GetRangeAt(0);
|
|
nsINode* selStartNode = range->GetStartContainer();
|
|
if (NS_WARN_IF(!selStartNode)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
if (!IsModifiableNode(*selStartNode)) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
nsINode* selEndNode = range->GetEndContainer();
|
|
if (NS_WARN_IF(!selEndNode)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
if (selStartNode == selEndNode) {
|
|
return EditActionIgnored();
|
|
}
|
|
|
|
if (!IsModifiableNode(*selEndNode)) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
nsINode* commonAncestor = range->GetCommonAncestor();
|
|
if (NS_WARN_IF(!commonAncestor)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
if (!IsModifiableNode(*commonAncestor)) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
return EditActionIgnored();
|
|
}
|
|
|
|
nsresult HTMLEditRules::WillDoAction(EditSubActionInfo& aInfo, bool* aCancel,
|
|
bool* aHandled) {
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
|
|
MOZ_ASSERT(aCancel);
|
|
MOZ_ASSERT(aHandled);
|
|
|
|
*aCancel = false;
|
|
*aHandled = false;
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
EditActionResult result = HTMLEditorRef().CanHandleHTMLEditSubAction();
|
|
if (NS_WARN_IF(result.Failed())) {
|
|
return result.Rv();
|
|
}
|
|
if (result.Canceled()) {
|
|
if (!SelectionRefPtr()->RangeCount()) {
|
|
// Special case. If there is no selection range, we do nothing here,
|
|
// but return as not handled nor canceled.
|
|
return NS_OK;
|
|
}
|
|
*aCancel = true;
|
|
return NS_OK;
|
|
}
|
|
|
|
switch (aInfo.mEditSubAction) {
|
|
case EditSubAction::eInsertElement:
|
|
case EditSubAction::eInsertQuotedText: {
|
|
nsresult rv = MOZ_KnownLive(HTMLEditorRef()).WillInsert(aCancel);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "WillInsert() failed");
|
|
return NS_OK;
|
|
}
|
|
case EditSubAction::eComputeTextToOutput:
|
|
case EditSubAction::eCreateOrChangeDefinitionListItem:
|
|
case EditSubAction::eCreateOrChangeList:
|
|
case EditSubAction::eCreateOrRemoveBlock:
|
|
case EditSubAction::eDecreaseZIndex:
|
|
case EditSubAction::eDeleteSelectedContent:
|
|
case EditSubAction::eIncreaseZIndex:
|
|
case EditSubAction::eIndent:
|
|
case EditSubAction::eInsertHTMLSource:
|
|
case EditSubAction::eInsertParagraphSeparator:
|
|
case EditSubAction::eInsertText:
|
|
case EditSubAction::eInsertTextComingFromIME:
|
|
case EditSubAction::eOutdent:
|
|
case EditSubAction::eUndo:
|
|
case EditSubAction::eRedo:
|
|
case EditSubAction::eRemoveList:
|
|
case EditSubAction::eRemoveTextProperty:
|
|
case EditSubAction::eSetOrClearAlignment:
|
|
case EditSubAction::eSetPositionToAbsolute:
|
|
case EditSubAction::eSetPositionToStatic:
|
|
case EditSubAction::eSetTextProperty:
|
|
MOZ_ASSERT_UNREACHABLE("This path should've been dead code");
|
|
return NS_ERROR_UNEXPECTED;
|
|
default:
|
|
return TextEditRules::WillDoAction(aInfo, aCancel, aHandled);
|
|
}
|
|
}
|
|
|
|
nsresult HTMLEditRules::DidDoAction(EditSubActionInfo& aInfo,
|
|
nsresult aResult) {
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
switch (aInfo.mEditSubAction) {
|
|
case EditSubAction::eInsertElement:
|
|
case EditSubAction::eInsertQuotedText:
|
|
return NS_OK;
|
|
case EditSubAction::eComputeTextToOutput:
|
|
case EditSubAction::eCreateOrChangeDefinitionListItem:
|
|
case EditSubAction::eCreateOrChangeList:
|
|
case EditSubAction::eCreateOrRemoveBlock:
|
|
case EditSubAction::eDecreaseZIndex:
|
|
case EditSubAction::eDeleteSelectedContent:
|
|
case EditSubAction::eIncreaseZIndex:
|
|
case EditSubAction::eIndent:
|
|
case EditSubAction::eInsertHTMLSource:
|
|
case EditSubAction::eInsertLineBreak:
|
|
case EditSubAction::eInsertParagraphSeparator:
|
|
case EditSubAction::eInsertText:
|
|
case EditSubAction::eInsertTextComingFromIME:
|
|
case EditSubAction::eOutdent:
|
|
case EditSubAction::eUndo:
|
|
case EditSubAction::eRedo:
|
|
case EditSubAction::eRemoveList:
|
|
case EditSubAction::eRemoveTextProperty:
|
|
case EditSubAction::eSetOrClearAlignment:
|
|
case EditSubAction::eSetPositionToAbsolute:
|
|
case EditSubAction::eSetPositionToStatic:
|
|
case EditSubAction::eSetTextProperty:
|
|
MOZ_ASSERT_UNREACHABLE("This path should've been dead code");
|
|
return NS_ERROR_UNEXPECTED;
|
|
default:
|
|
return TextEditRules::DidDoAction(aInfo, aResult);
|
|
}
|
|
}
|
|
|
|
bool HTMLEditRules::DocumentIsEmpty() const {
|
|
// XXX This is wrong. Even if there is no padding <br> element for empty
|
|
// editor, the editor may be empty.
|
|
return HTMLEditorRef().HasPaddingBRElementForEmptyEditor();
|
|
}
|
|
|
|
nsresult HTMLEditRules::GetListState(bool* aMixed, bool* aOL, bool* aUL,
|
|
bool* aDL) {
|
|
NS_ENSURE_TRUE(aMixed && aOL && aUL && aDL, NS_ERROR_NULL_POINTER);
|
|
*aMixed = false;
|
|
*aOL = false;
|
|
*aUL = false;
|
|
*aDL = false;
|
|
bool bNonList = false;
|
|
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
AutoTArray<OwningNonNull<nsINode>, 64> arrayOfNodes;
|
|
nsresult rv = HTMLEditorRef().CollectEditTargetNodesInExtendedSelectionRanges(
|
|
arrayOfNodes, EditSubAction::eCreateOrChangeList,
|
|
HTMLEditor::CollectNonEditableNodes::No);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
// Examine list type for nodes in selection.
|
|
for (const auto& curNode : arrayOfNodes) {
|
|
if (!curNode->IsElement()) {
|
|
bNonList = true;
|
|
} else if (curNode->IsHTMLElement(nsGkAtoms::ul)) {
|
|
*aUL = true;
|
|
} else if (curNode->IsHTMLElement(nsGkAtoms::ol)) {
|
|
*aOL = true;
|
|
} else if (curNode->IsHTMLElement(nsGkAtoms::li)) {
|
|
if (dom::Element* parent = curNode->GetParentElement()) {
|
|
if (parent->IsHTMLElement(nsGkAtoms::ul)) {
|
|
*aUL = true;
|
|
} else if (parent->IsHTMLElement(nsGkAtoms::ol)) {
|
|
*aOL = true;
|
|
}
|
|
}
|
|
} else if (curNode->IsAnyOfHTMLElements(nsGkAtoms::dl, nsGkAtoms::dt,
|
|
nsGkAtoms::dd)) {
|
|
*aDL = true;
|
|
} else {
|
|
bNonList = true;
|
|
}
|
|
}
|
|
|
|
// hokey arithmetic with booleans
|
|
if ((*aUL + *aOL + *aDL + bNonList) > 1) {
|
|
*aMixed = true;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditRules::GetListItemState(bool* aMixed, bool* aLI, bool* aDT,
|
|
bool* aDD) {
|
|
NS_ENSURE_TRUE(aMixed && aLI && aDT && aDD, NS_ERROR_NULL_POINTER);
|
|
*aMixed = false;
|
|
*aLI = false;
|
|
*aDT = false;
|
|
*aDD = false;
|
|
bool bNonList = false;
|
|
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
AutoTArray<OwningNonNull<nsINode>, 64> arrayOfNodes;
|
|
nsresult rv = HTMLEditorRef().CollectEditTargetNodesInExtendedSelectionRanges(
|
|
arrayOfNodes, EditSubAction::eCreateOrChangeList,
|
|
HTMLEditor::CollectNonEditableNodes::No);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
// examine list type for nodes in selection
|
|
for (const auto& node : arrayOfNodes) {
|
|
if (!node->IsElement()) {
|
|
bNonList = true;
|
|
} else if (node->IsAnyOfHTMLElements(nsGkAtoms::ul, nsGkAtoms::ol,
|
|
nsGkAtoms::li)) {
|
|
*aLI = true;
|
|
} else if (node->IsHTMLElement(nsGkAtoms::dt)) {
|
|
*aDT = true;
|
|
} else if (node->IsHTMLElement(nsGkAtoms::dd)) {
|
|
*aDD = true;
|
|
} else if (node->IsHTMLElement(nsGkAtoms::dl)) {
|
|
if (*aDT && *aDD) {
|
|
continue;
|
|
}
|
|
// need to look inside dl and see which types of items it has
|
|
DefinitionListItemScanner scanner(*node->AsElement());
|
|
*aDT |= scanner.DTElementFound();
|
|
*aDD |= scanner.DDElementFound();
|
|
} else {
|
|
bNonList = true;
|
|
}
|
|
}
|
|
|
|
// hokey arithmetic with booleans
|
|
if (*aDT + *aDD + bNonList > 1) {
|
|
*aMixed = true;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditRules::GetAlignment(bool* aMixed,
|
|
nsIHTMLEditor::EAlignment* aAlign) {
|
|
MOZ_ASSERT(aMixed && aAlign);
|
|
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
// For now, just return first alignment. We'll lie about if it's mixed.
|
|
// This is for efficiency given that our current ui doesn't care if it's
|
|
// mixed.
|
|
// cmanske: NOT TRUE! We would like to pay attention to mixed state in Format
|
|
// | Align submenu!
|
|
|
|
// This routine assumes that alignment is done ONLY via divs
|
|
|
|
// Default alignment is left
|
|
*aMixed = false;
|
|
*aAlign = nsIHTMLEditor::eLeft;
|
|
|
|
// Get selection location
|
|
if (NS_WARN_IF(!HTMLEditorRef().GetRoot())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
OwningNonNull<Element> root = *HTMLEditorRef().GetRoot();
|
|
|
|
int32_t rootOffset =
|
|
root->GetParentNode() ? root->GetParentNode()->ComputeIndexOf(root) : -1;
|
|
|
|
nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
EditorRawDOMPoint atStartOfSelection(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
MOZ_ASSERT(atStartOfSelection.IsSetAndValid());
|
|
|
|
// Is the selection collapsed?
|
|
nsCOMPtr<nsINode> nodeToExamine;
|
|
if (SelectionRefPtr()->IsCollapsed() ||
|
|
atStartOfSelection.GetContainerAsText()) {
|
|
// If selection is collapsed, we want to look at the container of selection
|
|
// start and its ancestors for divs with alignment on them. If we are in a
|
|
// text node, then that is the node of interest.
|
|
nodeToExamine = atStartOfSelection.GetContainer();
|
|
if (NS_WARN_IF(!nodeToExamine)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
} else if (atStartOfSelection.IsContainerHTMLElement(nsGkAtoms::html) &&
|
|
atStartOfSelection.Offset() == static_cast<uint32_t>(rootOffset)) {
|
|
// If we have selected the body, let's look at the first editable node
|
|
nodeToExamine = HTMLEditorRef().GetNextEditableNode(atStartOfSelection);
|
|
if (NS_WARN_IF(!nodeToExamine)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
} else {
|
|
AutoTArray<RefPtr<nsRange>, 4> arrayOfRanges;
|
|
HTMLEditorRef().GetSelectionRangesExtendedToHardLineStartAndEnd(
|
|
arrayOfRanges, EditSubAction::eSetOrClearAlignment);
|
|
|
|
// Use these ranges to construct a list of nodes to act on.
|
|
nsTArray<OwningNonNull<nsINode>> arrayOfNodes;
|
|
nsresult rv = HTMLEditorRef().CollectEditTargetNodes(
|
|
arrayOfRanges, arrayOfNodes, EditSubAction::eSetOrClearAlignment,
|
|
HTMLEditor::CollectNonEditableNodes::Yes);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
nodeToExamine = arrayOfNodes.SafeElementAt(0);
|
|
if (NS_WARN_IF(!nodeToExamine)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
RefPtr<Element> blockParent = HTMLEditorRef().GetBlock(*nodeToExamine);
|
|
if (NS_WARN_IF(!blockParent)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
if (HTMLEditorRef().IsCSSEnabled() &&
|
|
CSSEditUtils::IsCSSEditableProperty(blockParent, nullptr,
|
|
nsGkAtoms::align)) {
|
|
// We are in CSS mode and we know how to align this element with CSS
|
|
nsAutoString value;
|
|
// Let's get the value(s) of text-align or margin-left/margin-right
|
|
CSSEditUtils::GetCSSEquivalentToHTMLInlineStyleSet(
|
|
blockParent, nullptr, nsGkAtoms::align, value, CSSEditUtils::eComputed);
|
|
if (value.EqualsLiteral("center") || value.EqualsLiteral("-moz-center") ||
|
|
value.EqualsLiteral("auto auto")) {
|
|
*aAlign = nsIHTMLEditor::eCenter;
|
|
return NS_OK;
|
|
}
|
|
if (value.EqualsLiteral("right") || value.EqualsLiteral("-moz-right") ||
|
|
value.EqualsLiteral("auto 0px")) {
|
|
*aAlign = nsIHTMLEditor::eRight;
|
|
return NS_OK;
|
|
}
|
|
if (value.EqualsLiteral("justify")) {
|
|
*aAlign = nsIHTMLEditor::eJustify;
|
|
return NS_OK;
|
|
}
|
|
*aAlign = nsIHTMLEditor::eLeft;
|
|
return NS_OK;
|
|
}
|
|
|
|
// Check up the ladder for divs with alignment
|
|
bool isFirstNodeToExamine = true;
|
|
for (; nodeToExamine; nodeToExamine = nodeToExamine->GetParentNode()) {
|
|
if (!isFirstNodeToExamine &&
|
|
nodeToExamine->IsHTMLElement(nsGkAtoms::table)) {
|
|
// The node to examine is a table and this is not the first node we
|
|
// examine; let's break here to materialize the 'inline-block' behaviour
|
|
// of html tables regarding to text alignment
|
|
return NS_OK;
|
|
}
|
|
|
|
if (CSSEditUtils::IsCSSEditableProperty(nodeToExamine, nullptr,
|
|
nsGkAtoms::align)) {
|
|
nsAutoString value;
|
|
CSSEditUtils::GetSpecifiedProperty(*nodeToExamine, *nsGkAtoms::textAlign,
|
|
value);
|
|
if (!value.IsEmpty()) {
|
|
if (value.EqualsLiteral("center")) {
|
|
*aAlign = nsIHTMLEditor::eCenter;
|
|
return NS_OK;
|
|
}
|
|
if (value.EqualsLiteral("right")) {
|
|
*aAlign = nsIHTMLEditor::eRight;
|
|
return NS_OK;
|
|
}
|
|
if (value.EqualsLiteral("justify")) {
|
|
*aAlign = nsIHTMLEditor::eJustify;
|
|
return NS_OK;
|
|
}
|
|
if (value.EqualsLiteral("left")) {
|
|
*aAlign = nsIHTMLEditor::eLeft;
|
|
return NS_OK;
|
|
}
|
|
// XXX
|
|
// text-align: start and end aren't supported yet
|
|
}
|
|
}
|
|
|
|
if (HTMLEditUtils::SupportsAlignAttr(*nodeToExamine)) {
|
|
// Check for alignment
|
|
nsAutoString typeAttrVal;
|
|
nodeToExamine->AsElement()->GetAttr(kNameSpaceID_None, nsGkAtoms::align,
|
|
typeAttrVal);
|
|
ToLowerCase(typeAttrVal);
|
|
if (!typeAttrVal.IsEmpty()) {
|
|
if (typeAttrVal.EqualsLiteral("center")) {
|
|
*aAlign = nsIHTMLEditor::eCenter;
|
|
} else if (typeAttrVal.EqualsLiteral("right")) {
|
|
*aAlign = nsIHTMLEditor::eRight;
|
|
} else if (typeAttrVal.EqualsLiteral("justify")) {
|
|
*aAlign = nsIHTMLEditor::eJustify;
|
|
} else {
|
|
*aAlign = nsIHTMLEditor::eLeft;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
}
|
|
isFirstNodeToExamine = false;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
static nsStaticAtom& MarginPropertyAtomForIndent(nsINode& aNode) {
|
|
nsAutoString direction;
|
|
CSSEditUtils::GetComputedProperty(aNode, *nsGkAtoms::direction, direction);
|
|
return direction.EqualsLiteral("rtl") ? *nsGkAtoms::marginRight
|
|
: *nsGkAtoms::marginLeft;
|
|
}
|
|
|
|
nsresult HTMLEditRules::GetParagraphState(bool* aMixed, nsAString& outFormat) {
|
|
if (NS_WARN_IF(!aMixed)) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
|
|
// This routine is *heavily* tied to our ui choices in the paragraph
|
|
// style popup. I can't see a way around that.
|
|
*aMixed = true;
|
|
outFormat.Truncate(0);
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
bool bMixed = false;
|
|
// using "x" as an uninitialized value, since "" is meaningful
|
|
nsAutoString formatStr(NS_LITERAL_STRING("x"));
|
|
|
|
nsTArray<OwningNonNull<nsINode>> arrayOfNodes;
|
|
nsresult rv = GetParagraphFormatNodes(arrayOfNodes);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
// post process list. We need to replace any block nodes that are not format
|
|
// nodes with their content. This is so we only have to look "up" the
|
|
// hierarchy to find format nodes, instead of both up and down.
|
|
for (int32_t i = arrayOfNodes.Length() - 1; i >= 0; i--) {
|
|
auto& curNode = arrayOfNodes[i];
|
|
nsAutoString format;
|
|
// if it is a known format node we have it easy
|
|
if (HTMLEditor::NodeIsBlockStatic(curNode) &&
|
|
!HTMLEditUtils::IsFormatNode(curNode)) {
|
|
// arrayOfNodes.RemoveObject(curNode);
|
|
rv = AppendInnerFormatNodes(arrayOfNodes, curNode);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
|
|
// we might have an empty node list. if so, find selection parent
|
|
// and put that on the list
|
|
if (arrayOfNodes.IsEmpty()) {
|
|
EditorRawDOMPoint atCaret(EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
if (NS_WARN_IF(!atCaret.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
arrayOfNodes.AppendElement(*atCaret.GetContainer());
|
|
}
|
|
|
|
// remember root node
|
|
Element* rootElement = HTMLEditorRef().GetRoot();
|
|
if (NS_WARN_IF(!rootElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// loop through the nodes in selection and examine their paragraph format
|
|
for (auto& curNode : Reversed(arrayOfNodes)) {
|
|
nsAutoString format;
|
|
// if it is a known format node we have it easy
|
|
if (HTMLEditUtils::IsFormatNode(curNode)) {
|
|
GetFormatString(curNode, format);
|
|
} else if (HTMLEditor::NodeIsBlockStatic(curNode)) {
|
|
// this is a div or some other non-format block.
|
|
// we should ignore it. Its children were appended to this list
|
|
// by AppendInnerFormatNodes() call above. We will get needed
|
|
// info when we examine them instead.
|
|
continue;
|
|
} else {
|
|
nsINode* node = curNode->GetParentNode();
|
|
while (node) {
|
|
if (node == rootElement) {
|
|
format.Truncate(0);
|
|
break;
|
|
} else if (HTMLEditUtils::IsFormatNode(node)) {
|
|
GetFormatString(node, format);
|
|
break;
|
|
}
|
|
// else keep looking up
|
|
node = node->GetParentNode();
|
|
}
|
|
}
|
|
|
|
// if this is the first node, we've found, remember it as the format
|
|
if (formatStr.EqualsLiteral("x")) {
|
|
formatStr = format;
|
|
}
|
|
// else make sure it matches previously found format
|
|
else if (format != formatStr) {
|
|
bMixed = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
*aMixed = bMixed;
|
|
outFormat = formatStr;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditRules::AppendInnerFormatNodes(
|
|
nsTArray<OwningNonNull<nsINode>>& aArray, nsINode* aNode) {
|
|
MOZ_ASSERT(aNode);
|
|
|
|
// we only need to place any one inline inside this node onto
|
|
// the list. They are all the same for purposes of determining
|
|
// paragraph style. We use foundInline to track this as we are
|
|
// going through the children in the loop below.
|
|
bool foundInline = false;
|
|
for (nsIContent* child = aNode->GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
bool isBlock = HTMLEditor::NodeIsBlockStatic(*child);
|
|
bool isFormat = HTMLEditUtils::IsFormatNode(child);
|
|
if (isBlock && !isFormat) {
|
|
// if it's a div, etc., recurse
|
|
AppendInnerFormatNodes(aArray, child);
|
|
} else if (isFormat) {
|
|
aArray.AppendElement(*child);
|
|
} else if (!foundInline) {
|
|
// if this is the first inline we've found, use it
|
|
foundInline = true;
|
|
aArray.AppendElement(*child);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditRules::GetFormatString(nsINode* aNode, nsAString& outFormat) {
|
|
NS_ENSURE_TRUE(aNode, NS_ERROR_NULL_POINTER);
|
|
|
|
if (HTMLEditUtils::IsFormatNode(aNode)) {
|
|
aNode->NodeInfo()->NameAtom()->ToString(outFormat);
|
|
} else {
|
|
outFormat.Truncate();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::WillInsert(bool* aCancel) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
// XXX Why don't we stop handling this call if we're readonly or disabled?
|
|
if (aCancel && (IsReadonly() || IsDisabled())) {
|
|
*aCancel = true;
|
|
}
|
|
|
|
nsresult rv = EnsureNoPaddingBRElementForEmptyEditor();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
// Adjust selection to prevent insertion after a padding <br> element for
|
|
// empty last line. This next only works for collapsed selections right
|
|
// now, because selection is a pain to work with when not collapsed. (no
|
|
// good way to extend start or end of selection), so we ignore those types
|
|
// of selections.
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// If we are after a padding <br> element for empty last line in the same
|
|
// block, then move selection to be before it
|
|
nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorRawDOMPoint atStartOfSelection(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
MOZ_ASSERT(atStartOfSelection.IsSetAndValid());
|
|
|
|
// Get prior node
|
|
nsCOMPtr<nsIContent> priorNode =
|
|
GetPreviousEditableHTMLNode(atStartOfSelection);
|
|
if (priorNode && EditorBase::IsPaddingBRElementForEmptyLastLine(*priorNode)) {
|
|
RefPtr<Element> block1 = GetBlock(*atStartOfSelection.GetContainer());
|
|
RefPtr<Element> block2 = GetBlockNodeParent(priorNode);
|
|
|
|
if (block1 && block1 == block2) {
|
|
// 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 point(priorNode);
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(point, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
}
|
|
}
|
|
|
|
if (TopLevelEditSubActionDataRef().mDidDeleteSelection) {
|
|
switch (GetTopLevelEditSubAction()) {
|
|
case EditSubAction::eInsertText:
|
|
case EditSubAction::eInsertTextComingFromIME:
|
|
case EditSubAction::eDeleteSelectedContent: {
|
|
nsresult rv = ReapplyCachedStyles();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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 (NS_WARN_IF(result.Failed()) || result.Canceled()) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
}
|
|
|
|
// FYI: Ignore cancel result of WillInsert().
|
|
nsresult rv = WillInsert();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "WillInsert() failed");
|
|
|
|
RefPtr<Document> document = GetDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
RefPtr<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_WARN_IF(NS_FAILED(rv))) {
|
|
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())) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
MOZ_ASSERT(pointToInsert.IsSetAndValid());
|
|
|
|
// dont put text in places that can't have it
|
|
if (!EditorBase::IsTextNode(pointToInsert.GetContainer()) &&
|
|
!CanContainTag(*pointToInsert.GetContainer(), *nsGkAtoms::textTagName)) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
if (aEditSubAction == EditSubAction::eInsertTextComingFromIME) {
|
|
EditorRawDOMPoint compositionStartPoint = GetCompositionStartPoint();
|
|
if (!compositionStartPoint.IsSet()) {
|
|
compositionStartPoint = pointToInsert;
|
|
}
|
|
|
|
if (aInsertionString.IsEmpty()) {
|
|
// Right now the WSRunObject 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),
|
|
"InsertTextWithTransaction() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
EditorRawDOMPoint compositionEndPoint = GetCompositionEndPoint();
|
|
if (!compositionEndPoint.IsSet()) {
|
|
compositionEndPoint = compositionStartPoint;
|
|
}
|
|
WSRunObject wsObj(this, compositionStartPoint, compositionEndPoint);
|
|
nsresult rv = wsObj.InsertText(*document, aInsertionString);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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),
|
|
"Faliled to set mChangedRange to composing range");
|
|
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 = EditorBase::IsPreformatted(pointToInsert.GetContainer());
|
|
|
|
// 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;
|
|
NS_NAMED_LITERAL_STRING(newlineStr, 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 (NS_WARN_IF(!brElement)) {
|
|
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.Set(brElement);
|
|
DebugOnly<bool> advanced = currentPoint.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(
|
|
advanced, "Failed to advance offset after the new <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_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
currentPoint = pointAfterInsertedString;
|
|
pointToInsert = pointAfterInsertedString;
|
|
}
|
|
}
|
|
} else {
|
|
NS_NAMED_LITERAL_STRING(tabStr, "\t");
|
|
NS_NAMED_LITERAL_STRING(spacesStr, " ");
|
|
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);
|
|
WSRunObject wsObj(this, currentPoint);
|
|
|
|
// is it a tab?
|
|
if (subStr.Equals(tabStr)) {
|
|
EditorRawDOMPoint pointAfterInsertedSpaces;
|
|
nsresult rv =
|
|
wsObj.InsertText(*document, spacesStr, &pointAfterInsertedSpaces);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
pos++;
|
|
MOZ_ASSERT(pointAfterInsertedSpaces.IsSet());
|
|
currentPoint = pointAfterInsertedSpaces;
|
|
pointToInsert = pointAfterInsertedSpaces;
|
|
}
|
|
// is it a return?
|
|
else if (subStr.Equals(newlineStr)) {
|
|
RefPtr<Element> newBRElement =
|
|
wsObj.InsertBreak(MOZ_KnownLive(*SelectionRefPtr()), currentPoint,
|
|
nsIEditor::eNone);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(!newBRElement)) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
pos++;
|
|
if (newBRElement->GetNextSibling()) {
|
|
pointToInsert.Set(newBRElement->GetNextSibling());
|
|
} else {
|
|
pointToInsert.SetToEndOf(currentPoint.GetContainer());
|
|
}
|
|
currentPoint.Set(newBRElement);
|
|
DebugOnly<bool> advanced = currentPoint.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(
|
|
advanced, "Failed to advance offset to after the new <br> node");
|
|
// 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 =
|
|
wsObj.InsertText(*document, subStr, &pointAfterInsertedString);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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()) {
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->Collapse(currentPoint, ignoredError);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(!ignoredError.Failed(),
|
|
"Failed to collapse at current point");
|
|
}
|
|
|
|
// 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), "Failed to set mChangedRange");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
rv = TopLevelEditSubActionDataRef().mChangedRange->CollapseTo(pointToInsert);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Failed to collapse mChangedRange");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
bool HTMLEditor::CanContainParagraph(Element& aElement) const {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (CanContainTag(aElement, *nsGkAtoms::p)) {
|
|
return true;
|
|
}
|
|
|
|
// Even if the element cannot have a <p> element as a child, it can contain
|
|
// <p> element as a descendant if it's one of the following elements.
|
|
if (aElement.IsAnyOfHTMLElements(nsGkAtoms::ol, nsGkAtoms::ul, nsGkAtoms::dl,
|
|
nsGkAtoms::table, nsGkAtoms::thead,
|
|
nsGkAtoms::tbody, nsGkAtoms::tfoot,
|
|
nsGkAtoms::tr)) {
|
|
return true;
|
|
}
|
|
|
|
// XXX Otherwise, Chromium checks the CSS box is a block, but we don't do it
|
|
// for now.
|
|
return false;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::InsertParagraphSeparatorAsSubAction() {
|
|
if (!mRules) {
|
|
return EditActionIgnored(NS_ERROR_NOT_INITIALIZED);
|
|
}
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"CanHandleHTMLEditSubAction() failed");
|
|
if (result.Failed() || result.Canceled()) {
|
|
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);
|
|
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eInsertParagraphSeparator, nsIEditor::eNext);
|
|
|
|
UndefineCaretBidiLevel();
|
|
|
|
// If the selection isn't collapsed, delete it.
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv =
|
|
DeleteSelectionAsSubAction(nsIEditor::eNone, nsIEditor::eStrip);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionIgnored(rv);
|
|
}
|
|
}
|
|
|
|
// FYI: Ignore cancel result of WillInsert().
|
|
nsresult rv = WillInsert();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "WillInsert() failed");
|
|
|
|
// 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 (NS_WARN_IF(result.Failed())) {
|
|
return result;
|
|
}
|
|
if (result.Handled()) {
|
|
return result;
|
|
}
|
|
}
|
|
|
|
// Smart splitting rules
|
|
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 (!IsModifiableNode(*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);
|
|
}
|
|
|
|
// 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> blockParent =
|
|
HTMLEditor::GetBlock(*atStartOfSelection.GetContainer(), editingHost);
|
|
|
|
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 (!blockParent) {
|
|
// 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 == blockParent) {
|
|
insertBRElement = separator == ParagraphSeparator::br ||
|
|
!CanContainParagraph(*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(*blockParent)) {
|
|
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 = blockParent; blockAncestor && insertBRElement;
|
|
blockAncestor =
|
|
HTMLEditor::GetBlockNodeParent(blockAncestor, editingHost)) {
|
|
insertBRElement = !CanContainParagraph(*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_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionIgnored(rv);
|
|
}
|
|
return EditActionHandled();
|
|
}
|
|
|
|
if (editingHost == blockParent && 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");
|
|
|
|
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());
|
|
|
|
blockParent =
|
|
HTMLEditor::GetBlock(*atStartOfSelection.GetContainer(), editingHost);
|
|
if (NS_WARN_IF(!blockParent)) {
|
|
return EditActionIgnored(NS_ERROR_UNEXPECTED);
|
|
}
|
|
if (NS_WARN_IF(blockParent == editingHost)) {
|
|
// Didn't create a new block for some reason, fall back to <br>
|
|
rv = InsertBRElement(atStartOfSelection);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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 = blockParent;
|
|
}
|
|
|
|
// 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(*blockParent, IgnoreSingleBR::No)) {
|
|
AutoEditorDOMPointChildInvalidator lockOffset(atStartOfSelection);
|
|
EditorDOMPoint endOfBlockParent;
|
|
endOfBlockParent.SetToEndOf(blockParent);
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(endOfBlockParent);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return EditActionIgnored(NS_ERROR_FAILURE);
|
|
}
|
|
}
|
|
|
|
RefPtr<Element> listItem = GetNearestAncestorListItemElement(*blockParent);
|
|
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),
|
|
"HandleInsertParagraphInListItemElement() failed, but ignored");
|
|
return EditActionHandled();
|
|
}
|
|
|
|
if (HTMLEditUtils::IsHeader(*blockParent)) {
|
|
// Headers: close (or split) header
|
|
nsresult rv = HandleInsertParagraphInHeadingElement(
|
|
*blockParent, 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),
|
|
"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 &&
|
|
blockParent->IsHTMLElement(nsGkAtoms::p)) ||
|
|
(separator != ParagraphSeparator::br &&
|
|
blockParent->IsAnyOfHTMLElements(nsGkAtoms::p, nsGkAtoms::div))) {
|
|
AutoEditorDOMPointChildInvalidator lockOffset(atStartOfSelection);
|
|
// Paragraphs: special rules to look for <br>s
|
|
EditActionResult result = HandleInsertParagraphInParagraph(*blockParent);
|
|
if (NS_WARN_IF(result.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, "
|
|
"WillInsertBreak() needs to handle such case");
|
|
}
|
|
|
|
// If nobody handles this edit action, let's insert new <br> at the selection.
|
|
rv = InsertBRElement(atStartOfSelection);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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;
|
|
bool 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 (NS_WARN_IF(!brElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
} else {
|
|
EditorDOMPoint pointToBreak(aPointToBreak);
|
|
WSRunObject wsObj(this, pointToBreak);
|
|
WSType wsType;
|
|
wsObj.PriorVisibleNode(pointToBreak, &wsType);
|
|
if (wsType & WSType::block) {
|
|
brElementIsAfterBlock = true;
|
|
}
|
|
wsObj.NextVisibleNode(pointToBreak, &wsType);
|
|
if (wsType & WSType::block) {
|
|
brElementIsBeforeBlock = true;
|
|
}
|
|
// 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 (NS_WARN_IF(splitLinkNodeResult.Failed())) {
|
|
return splitLinkNodeResult.Rv();
|
|
}
|
|
pointToBreak = splitLinkNodeResult.SplitPoint();
|
|
}
|
|
brElement = wsObj.InsertBreak(MOZ_KnownLive(*SelectionRefPtr()),
|
|
pointToBreak, nsIEditor::eNone);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
// If the <br> element has already been removed from the DOM tree by a
|
|
// mutation observer, 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.
|
|
ErrorResult error;
|
|
SelectionRefPtr()->SetInterlinePosition(true, error);
|
|
NS_WARNING_ASSERTION(!error.Failed(), "Failed to set interline position");
|
|
EditorRawDOMPoint point(brElement);
|
|
error = NS_OK;
|
|
SelectionRefPtr()->Collapse(point, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
EditorDOMPoint afterBRElement(brElement);
|
|
DebugOnly<bool> advanced = afterBRElement.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset after the new <br> element");
|
|
WSRunObject wsObj(this, afterBRElement);
|
|
nsCOMPtr<nsINode> maybeSecondBRNode;
|
|
WSType wsType;
|
|
wsObj.NextVisibleNode(afterBRElement, address_of(maybeSecondBRNode), nullptr,
|
|
&wsType);
|
|
if (wsType == WSType::br) {
|
|
// 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.
|
|
EditorDOMPoint atSecondBRElement(maybeSecondBRNode);
|
|
if (brElement->GetNextSibling() != maybeSecondBRNode) {
|
|
nsresult rv = MoveNodeWithTransaction(
|
|
MOZ_KnownLive(*maybeSecondBRNode->AsContent()), afterBRElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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();
|
|
ErrorResult error;
|
|
SelectionRefPtr()->SetInterlinePosition(
|
|
!(nextSiblingOfBRElement &&
|
|
HTMLEditor::NodeIsBlockStatic(*nextSiblingOfBRElement)),
|
|
error);
|
|
NS_WARNING_ASSERTION(!error.Failed(),
|
|
"Failed to set or unset interline position");
|
|
error = NS_OK;
|
|
SelectionRefPtr()->Collapse(afterBRElement, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
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.
|
|
WSRunObject wsObj(this, pointToSplit);
|
|
nsCOMPtr<nsINode> visNode;
|
|
WSType wsType;
|
|
wsObj.NextVisibleNode(pointToSplit, address_of(visNode), nullptr, &wsType);
|
|
// If selection start point is before a break and it's inside the mailquote,
|
|
// let's split it after the visible node.
|
|
if (wsType == WSType::br && visNode != citeNode &&
|
|
citeNode->Contains(visNode)) {
|
|
pointToSplit.Set(visNode);
|
|
DebugOnly<bool> advanced = pointToSplit.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset to after the visible node");
|
|
}
|
|
|
|
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 (NS_WARN_IF(splitCiteNodeResult.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,
|
|
"Failed to create an invisible <br> element");
|
|
}
|
|
}
|
|
|
|
// 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 (NS_WARN_IF(!brElement)) {
|
|
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 atBrNode(brElement);
|
|
Unused << atBrNode.Offset(); // Needs offset after collapsing the selection.
|
|
ErrorResult error;
|
|
SelectionRefPtr()->SetInterlinePosition(true, error);
|
|
NS_WARNING_ASSERTION(!error.Failed(), "Failed to set interline position");
|
|
error = NS_OK;
|
|
SelectionRefPtr()->Collapse(atBrNode, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return EditActionIgnored(error.StealNSResult());
|
|
}
|
|
|
|
// 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 (HTMLEditor::NodeIsInlineStatic(*citeNode)) {
|
|
// Use DOM point which we tried to collapse to.
|
|
EditorDOMPoint pointToCreateNewBrNode(atBrNode.GetContainer(),
|
|
atBrNode.Offset());
|
|
|
|
WSRunObject wsObj(this, pointToCreateNewBrNode);
|
|
WSType wsType;
|
|
wsObj.PriorVisibleNode(pointToCreateNewBrNode, nullptr, nullptr, &wsType);
|
|
if (wsType == WSType::normalWS || wsType == WSType::text ||
|
|
wsType == WSType::special) {
|
|
EditorRawDOMPoint pointAfterNewBrNode(pointToCreateNewBrNode);
|
|
DebugOnly<bool> advanced = pointAfterNewBrNode.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset after the <br> node");
|
|
WSRunObject wsObjAfterBR(this, pointAfterNewBrNode);
|
|
wsObjAfterBR.NextVisibleNode(pointAfterNewBrNode, &wsType);
|
|
if (wsType == WSType::normalWS || wsType == WSType::text ||
|
|
wsType == WSType::special ||
|
|
// In case we're at the very end.
|
|
wsType == WSType::thisBlock) {
|
|
brElement = InsertBRElementWithTransaction(pointToCreateNewBrNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return EditActionIgnored(NS_ERROR_FAILURE);
|
|
}
|
|
// Now, those points may be invalid.
|
|
pointToCreateNewBrNode.Clear();
|
|
pointAfterNewBrNode.Clear();
|
|
}
|
|
}
|
|
}
|
|
|
|
// delete any empty cites
|
|
bool bEmptyCite = false;
|
|
if (previousNodeOfSplitPoint) {
|
|
nsresult rv =
|
|
IsEmptyNode(previousNodeOfSplitPoint, &bEmptyCite, true, false);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionIgnored(rv);
|
|
}
|
|
if (bEmptyCite) {
|
|
rv = DeleteNodeWithTransaction(MOZ_KnownLive(*previousNodeOfSplitPoint));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionIgnored(rv);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (citeNode) {
|
|
nsresult rv = IsEmptyNode(citeNode, &bEmptyCite, true, false);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionIgnored(rv);
|
|
}
|
|
if (bEmptyCite) {
|
|
rv = DeleteNodeWithTransaction(*citeNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionIgnored(rv);
|
|
}
|
|
}
|
|
}
|
|
|
|
return EditActionHandled();
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleDeleteSelection(
|
|
nsIEditor::EDirection aDirectionAndAmount,
|
|
nsIEditor::EStripWrappers aStripWrappers) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aStripWrappers == nsIEditor::eStrip ||
|
|
aStripWrappers == nsIEditor::eNoStrip);
|
|
|
|
EditActionResult result =
|
|
HandleDeleteSelectionInternal(aDirectionAndAmount, aStripWrappers);
|
|
if (NS_WARN_IF(result.Failed()) || result.Canceled()) {
|
|
return result;
|
|
}
|
|
if (!result.Handled()) {
|
|
// If it's just ignored, we should fall this back to
|
|
// `DeleteSelectionWithTransaction()`.
|
|
DebugOnly<nsresult> rvIgnored =
|
|
DeleteSelectionWithTransaction(aDirectionAndAmount, aStripWrappers);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rvIgnored),
|
|
"DeleteSelectionWithTransaction() failed, but ignored");
|
|
}
|
|
|
|
EditorDOMPoint atNewStartOfSelection(
|
|
EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
if (NS_WARN_IF(!atNewStartOfSelection.IsSet())) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
if (atNewStartOfSelection.GetContainerAsContent()) {
|
|
nsresult rv = DeleteMostAncestorMailCiteElementIfEmpty(
|
|
MOZ_KnownLive(*atNewStartOfSelection.GetContainerAsContent()));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
}
|
|
return EditActionHandled();
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleDeleteSelectionInternal(
|
|
nsIEditor::EDirection aDirectionAndAmount,
|
|
nsIEditor::EStripWrappers aStripWrappers) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aStripWrappers == nsIEditor::eStrip ||
|
|
aStripWrappers == nsIEditor::eNoStrip);
|
|
|
|
// Remember that we did a selection deletion. Used by
|
|
// CreateStyleForInsertText()
|
|
TopLevelEditSubActionDataRef().mDidDeleteSelection = true;
|
|
|
|
// If there is only padding `<br>` element for empty editor, cancel the
|
|
// operation.
|
|
if (HasPaddingBRElementForEmptyEditor()) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
// First check for table selection mode. If so, hand off to table editor.
|
|
ErrorResult error;
|
|
if (RefPtr<Element> cellElement = GetFirstSelectedTableCellElement(error)) {
|
|
error.SuppressException();
|
|
nsresult rv = DeleteTableCellContentsWithTransaction();
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"DeleteTableCellContentsWithTransaction() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
// Only when there is no selection range, GetFirstSelectedTableCellElement()
|
|
// returns error and in this case, anyway we cannot handle delete selection.
|
|
// So, let's return error here even though we haven't handled this.
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return EditActionResult(error.StealNSResult());
|
|
}
|
|
|
|
// selectionWasCollapsed is used later to determine whether we should join
|
|
// blocks in HandleDeleteNonCollapasedSelection(). We don't really care
|
|
// about collapsed because it will be modified by ExtendSelectionForDelete()
|
|
// later. TryToJoinBlocksWithTransaction() should happen if the original
|
|
// selection is collapsed and the cursor is at the end of a block element,
|
|
// in which case ExtendSelectionForDelete() would always make the selection
|
|
// not collapsed.
|
|
SelectionWasCollapsed selectionWasCollapsed = SelectionRefPtr()->IsCollapsed()
|
|
? SelectionWasCollapsed::Yes
|
|
: SelectionWasCollapsed::No;
|
|
|
|
if (selectionWasCollapsed == SelectionWasCollapsed::Yes) {
|
|
EditorDOMPoint startPoint(EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
if (NS_WARN_IF(!startPoint.IsSet())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
// If we are inside an empty block, delete it.
|
|
RefPtr<Element> editingHost = GetActiveEditingHost();
|
|
if (NS_WARN_IF(!editingHost)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
if (startPoint.GetContainerAsContent()) {
|
|
AutoEditorDOMPointChildInvalidator lockOffset(startPoint);
|
|
|
|
EditActionResult result = MaybeDeleteTopMostEmptyAncestor(
|
|
MOZ_KnownLive(*startPoint.GetContainerAsContent()), *editingHost,
|
|
aDirectionAndAmount);
|
|
if (NS_WARN_IF(result.Failed()) || result.Handled()) {
|
|
return result;
|
|
}
|
|
}
|
|
|
|
// Test for distance between caret and text that will be deleted
|
|
EditActionResult result =
|
|
SetCaretBidiLevelForDeletion(startPoint, aDirectionAndAmount);
|
|
if (NS_WARN_IF(result.Failed()) || result.Canceled()) {
|
|
return result;
|
|
}
|
|
|
|
// ExtendSelectionForDelete will use selection controller to set
|
|
// selection for delete. But if focus event doesn't receive yet,
|
|
// ancestor isn't set. So we must set root eleement of editor to
|
|
// ancestor.
|
|
AutoSetTemporaryAncestorLimiter autoSetter(*this, *SelectionRefPtr(),
|
|
*startPoint.GetContainer());
|
|
|
|
nsresult rv = ExtendSelectionForDelete(&aDirectionAndAmount);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
|
|
if (aDirectionAndAmount == nsIEditor::eNone) {
|
|
// If we're not called recursively, we should call
|
|
// `DeleteSelectionWithTransaction()` here, but we cannot detect it for
|
|
// now. Therefore, we should just tell the caller of that we does
|
|
// nothing.
|
|
return EditActionIgnored();
|
|
}
|
|
|
|
if (SelectionRefPtr()->IsCollapsed()) {
|
|
EditActionResult result = HandleDeleteAroundCollapsedSelection(
|
|
aDirectionAndAmount, aStripWrappers);
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HandleDeleteAroundCollapsedSelection() failed");
|
|
return result;
|
|
}
|
|
}
|
|
|
|
EditActionResult result = HandleDeleteNonCollapsedSelection(
|
|
aDirectionAndAmount, aStripWrappers, selectionWasCollapsed);
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HandleDeleteNonCollapasedSelection() failed");
|
|
return result;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleDeleteAroundCollapsedSelection(
|
|
nsIEditor::EDirection aDirectionAndAmount,
|
|
nsIEditor::EStripWrappers aStripWrappers) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
MOZ_ASSERT(SelectionRefPtr()->IsCollapsed());
|
|
MOZ_ASSERT(aDirectionAndAmount != nsIEditor::eNone);
|
|
|
|
EditorDOMPoint startPoint(EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
if (NS_WARN_IF(!startPoint.IsSet())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
// What's in the direction we are deleting?
|
|
WSRunObject wsObj(this, startPoint);
|
|
nsCOMPtr<nsINode> visibleNode;
|
|
int32_t visibleNodeOffset;
|
|
WSType wsType;
|
|
|
|
// Find next visible node
|
|
if (aDirectionAndAmount == nsIEditor::eNext) {
|
|
wsObj.NextVisibleNode(startPoint, address_of(visibleNode),
|
|
&visibleNodeOffset, &wsType);
|
|
} else {
|
|
wsObj.PriorVisibleNode(startPoint, address_of(visibleNode),
|
|
&visibleNodeOffset, &wsType);
|
|
}
|
|
|
|
if (!visibleNode) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
if (wsType == WSType::normalWS) {
|
|
EditActionResult result =
|
|
HandleDeleteCollapsedSelectionAtWhiteSpaces(aDirectionAndAmount, wsObj);
|
|
NS_WARNING_ASSERTION(
|
|
result.Succeeded(),
|
|
"HandleDelectCollapsedSelectionAtWhiteSpaces() failed");
|
|
return result;
|
|
}
|
|
|
|
if (wsType == WSType::text) {
|
|
if (NS_WARN_IF(!visibleNode->IsText())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
EditActionResult result = HandleDeleteCollapsedSelectionAtTextNode(
|
|
aDirectionAndAmount, EditorDOMPoint(visibleNode, visibleNodeOffset));
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"HandleDeleteCollapsedSelectionAtTextNode() failed");
|
|
return result;
|
|
}
|
|
|
|
if (wsType == WSType::special || wsType == WSType::br ||
|
|
visibleNode->IsHTMLElement(nsGkAtoms::hr)) {
|
|
if (NS_WARN_IF(!visibleNode->IsContent())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
EditActionResult result = HandleDeleteCollapsedSelectionAtAtomicContent(
|
|
aDirectionAndAmount, aStripWrappers,
|
|
MOZ_KnownLive(*visibleNode->AsContent()), startPoint, wsObj);
|
|
NS_WARNING_ASSERTION(
|
|
result.Succeeded(),
|
|
"HandleDeleteCollapsedSelectionAtAtomicContent() failed");
|
|
return result;
|
|
}
|
|
|
|
if (wsType == WSType::otherBlock) {
|
|
if (NS_WARN_IF(!visibleNode->IsElement())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
EditActionResult result =
|
|
HandleDeleteCollapsedSelectionAtOtherBlockBoundary(
|
|
aDirectionAndAmount, aStripWrappers,
|
|
MOZ_KnownLive(*visibleNode->AsElement()), startPoint, wsObj);
|
|
NS_WARNING_ASSERTION(
|
|
result.Succeeded(),
|
|
"HandleDeleteCollapsedSelectionAtOtherBlockBoundary() failed");
|
|
return result;
|
|
}
|
|
|
|
if (wsType == WSType::thisBlock) {
|
|
if (NS_WARN_IF(!visibleNode->IsElement())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
EditActionResult result =
|
|
HandleDeleteCollapsedSelectionAtCurrentBlockBoundary(
|
|
aDirectionAndAmount, MOZ_KnownLive(*visibleNode->AsElement()),
|
|
startPoint);
|
|
NS_WARNING_ASSERTION(
|
|
result.Succeeded(),
|
|
"HandleDeleteCollapsedSelectionAtCurrentBlockBoundary() failed");
|
|
return result;
|
|
}
|
|
|
|
MOZ_ASSERT_UNREACHABLE("New WSType value hasn't been handled yet");
|
|
return EditActionIgnored();
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtWhiteSpaces(
|
|
nsIEditor::EDirection aDirectionAndAmount,
|
|
WSRunObject& aWSRunObjectAtCaret) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (aDirectionAndAmount == nsIEditor::eNext) {
|
|
nsresult rv = aWSRunObjectAtCaret.DeleteWSForward();
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
} else {
|
|
nsresult rv = aWSRunObjectAtCaret.DeleteWSBackward();
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
}
|
|
nsresult rv = InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
|
|
EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtTextNode(
|
|
nsIEditor::EDirection aDirectionAndAmount,
|
|
const EditorDOMPoint& aPointToDelete) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
MOZ_ASSERT(aPointToDelete.IsSet());
|
|
MOZ_ASSERT(aPointToDelete.IsInTextNode());
|
|
|
|
OwningNonNull<Text> visibleTextNode = *aPointToDelete.GetContainerAsText();
|
|
int32_t startOffset = aPointToDelete.Offset();
|
|
int32_t endOffset = startOffset + 1;
|
|
if (aDirectionAndAmount == nsIEditor::ePrevious) {
|
|
if (!startOffset) {
|
|
return EditActionResult(NS_ERROR_UNEXPECTED);
|
|
}
|
|
startOffset--;
|
|
endOffset--;
|
|
// Bug 1068979: delete both codepoints if surrogate pair
|
|
if (startOffset > 0) {
|
|
const nsTextFragment* text = &visibleTextNode->TextFragment();
|
|
if (text->IsLowSurrogateFollowingHighSurrogateAt(startOffset)) {
|
|
startOffset--;
|
|
}
|
|
}
|
|
} else {
|
|
RefPtr<nsRange> range = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!range)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
NS_ASSERTION(range->GetStartContainer() == aPointToDelete.GetContainer(),
|
|
"selection start not in the text node");
|
|
NS_ASSERTION(range->GetEndContainer() == aPointToDelete.GetContainer(),
|
|
"selection end not in the text node");
|
|
|
|
startOffset = range->StartOffset();
|
|
endOffset = range->EndOffset();
|
|
}
|
|
nsCOMPtr<nsINode> textNodeForDeletion = aPointToDelete.GetContainer();
|
|
nsresult rv = WSRunObject::PrepareToDeleteRange(
|
|
this, address_of(textNodeForDeletion), &startOffset,
|
|
address_of(textNodeForDeletion), &endOffset);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
rv = DeleteTextWithTransaction(visibleTextNode,
|
|
std::min(startOffset, endOffset),
|
|
DeprecatedAbs(endOffset - startOffset));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
// XXX When Backspace key is pressed, Chromium removes following empty
|
|
// text nodes when removing the last character of the non-empty text
|
|
// node. However, Edge never removes empty text nodes even if
|
|
// selection is in the following empty text node(s). For now, we
|
|
// should keep our traditional behavior same as Edge for backward
|
|
// compatibility.
|
|
// XXX When Delete key is pressed, Edge removes all preceding empty
|
|
// text nodes when removing the first character of the non-empty
|
|
// text node. Chromium removes only selected empty text node and
|
|
// following empty text nodes and the first character of the
|
|
// non-empty text node. For now, we should keep our traditional
|
|
// behavior same as Chromium for backward compatibility.
|
|
|
|
rv = DeleteNodeIfInvisibleAndEditableTextNode(visibleTextNode);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"DeleteNodeIfInvisibleAndEditableTextNode() failed, but ignored");
|
|
|
|
// XXX `Selection` may be modified by mutation event listeners so
|
|
// that we should use EditorDOMPoint::AtEndOf(visibleTextNode)
|
|
// instead. (Perhaps, we don't and/or shouldn't need to do this
|
|
// if the text node is preformatted.)
|
|
rv = InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
|
|
EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
// Remember that we did a ranged delete for the benefit of
|
|
// AfterEditInner().
|
|
TopLevelEditSubActionDataRef().mDidDeleteNonCollapsedRange = true;
|
|
|
|
return EditActionHandled();
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtAtomicContent(
|
|
nsIEditor::EDirection aDirectionAndAmount,
|
|
nsIEditor::EStripWrappers aStripWrappers, nsIContent& aAtomicContent,
|
|
const EditorDOMPoint& aCaretPoint, WSRunObject& aWSRunObjectAtCaret) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aCaretPoint.IsSet());
|
|
|
|
// If the atomic element is editing host, we should do nothing.
|
|
if (&aAtomicContent == aWSRunObjectAtCaret.GetEditingHost()) {
|
|
return EditActionHandled();
|
|
}
|
|
|
|
// Short circuit for invisible breaks. delete them and recurse.
|
|
if (aAtomicContent.IsHTMLElement(nsGkAtoms::br) &&
|
|
!IsVisibleBRElement(&aAtomicContent)) {
|
|
nsresult rv = DeleteNodeWithTransaction(aAtomicContent);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
// XXX This nesting call is not safe. If mutation event listener
|
|
// creates same situation, this causes stack-overflow.
|
|
EditActionResult result =
|
|
HandleDeleteSelectionInternal(aDirectionAndAmount, aStripWrappers);
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"Nested HandleDeleteSelectionInternal() failed");
|
|
return result;
|
|
}
|
|
|
|
// Special handling for backspace when positioned after <hr>
|
|
if (aDirectionAndAmount == nsIEditor::ePrevious &&
|
|
aAtomicContent.IsHTMLElement(nsGkAtoms::hr)) {
|
|
// Only if the caret is positioned at the end-of-hr-line position, we
|
|
// want to delete the <hr>.
|
|
//
|
|
// In other words, we only want to delete, if our selection position
|
|
// (indicated by aCaretPoint) is the position directly
|
|
// after the <hr>, on the same line as the <hr>.
|
|
//
|
|
// To detect this case we check:
|
|
// aCaretPoint's container == parent of `<hr>` element
|
|
// and
|
|
// aCaretPoint's offset -1 == `<hr>` element offset
|
|
// and
|
|
// interline position is false (left)
|
|
//
|
|
// In any other case we set the position to aCaretPoint's container -1
|
|
// and interlineposition to false, only moving the caret to the
|
|
// end-of-hr-line position.
|
|
bool moveOnly = true;
|
|
|
|
EditorRawDOMPoint atHRElement(&aAtomicContent);
|
|
|
|
ErrorResult err;
|
|
bool interLineIsRight = SelectionRefPtr()->GetInterlinePosition(err);
|
|
if (NS_WARN_IF(err.Failed())) {
|
|
return EditActionResult(err.StealNSResult());
|
|
}
|
|
|
|
if (aCaretPoint.GetContainer() == atHRElement.GetContainer() &&
|
|
aCaretPoint.Offset() - 1 == atHRElement.Offset() && !interLineIsRight) {
|
|
moveOnly = false;
|
|
}
|
|
|
|
if (moveOnly) {
|
|
// Go to the position after the <hr>, but to the end of the <hr> line
|
|
// by setting the interline position to left.
|
|
EditorDOMPoint atNextOfHRElement(&aAtomicContent);
|
|
DebugOnly<bool> advanced = atNextOfHRElement.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset after <hr> element");
|
|
|
|
{
|
|
AutoEditorDOMPointChildInvalidator lockOffset(atNextOfHRElement);
|
|
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->Collapse(atNextOfHRElement, ignoredError);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(!ignoredError.Failed(),
|
|
"Failed to collapse selection at after the <hr>");
|
|
}
|
|
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->SetInterlinePosition(false, ignoredError);
|
|
NS_WARNING_ASSERTION(!ignoredError.Failed(),
|
|
"Failed to unset interline position");
|
|
TopLevelEditSubActionDataRef().mDidExplicitlySetInterLine = true;
|
|
|
|
// There is one exception to the move only case. If the <hr> is
|
|
// followed by a <br> we want to delete the <br>.
|
|
|
|
WSType otherWSType;
|
|
nsCOMPtr<nsINode> otherNode;
|
|
|
|
aWSRunObjectAtCaret.NextVisibleNode(aCaretPoint, address_of(otherNode),
|
|
nullptr, &otherWSType);
|
|
|
|
if (otherWSType != WSType::br) {
|
|
return EditActionHandled();
|
|
}
|
|
|
|
// Delete the <br>
|
|
if (NS_WARN_IF(!otherNode->IsContent())) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
nsIContent* otherContent = otherNode->AsContent();
|
|
nsresult rv =
|
|
WSRunObject::PrepareToDeleteNode(this, MOZ_KnownLive(otherContent));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
rv = DeleteNodeWithTransaction(MOZ_KnownLive(*otherContent));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"DeleteNodeWithTransaction() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
// Else continue with normal delete code
|
|
}
|
|
|
|
// Found break or image, or hr.
|
|
// XXX Oddly, this requires `MOZ_KnownLive()` for `&aAtomicContent` here...
|
|
nsresult rv =
|
|
WSRunObject::PrepareToDeleteNode(this, MOZ_KnownLive(&aAtomicContent));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
// Remember sibling to visnode, if any
|
|
nsCOMPtr<nsIContent> previousEditableSibling =
|
|
GetPriorHTMLSibling(&aAtomicContent);
|
|
// Delete the node, and join like nodes if appropriate
|
|
rv = DeleteNodeWithTransaction(aAtomicContent);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
// Is there a prior node and are they siblings?
|
|
nsCOMPtr<nsINode> nextEditableSibling;
|
|
if (previousEditableSibling) {
|
|
nextEditableSibling = GetNextHTMLSibling(previousEditableSibling);
|
|
}
|
|
// Are they both text nodes? If so, join them!
|
|
// XXX This may cause odd behavior if there is non-editable nodes
|
|
// around the atomic content.
|
|
if (aCaretPoint.GetContainer() == nextEditableSibling &&
|
|
aCaretPoint.GetContainerAsText() &&
|
|
previousEditableSibling->GetAsText()) {
|
|
EditorDOMPoint atFirstChildOfRightNode;
|
|
nsresult rv = JoinNearestEditableNodesWithTransaction(
|
|
*previousEditableSibling,
|
|
MOZ_KnownLive(*aCaretPoint.GetContainerAsContent()),
|
|
&atFirstChildOfRightNode);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
if (NS_WARN_IF(!atFirstChildOfRightNode.IsSet())) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
// Fix up selection
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(atFirstChildOfRightNode, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return EditActionHandled(error.StealNSResult());
|
|
}
|
|
}
|
|
rv = InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
|
|
EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleDeleteCollapsedSelectionAtOtherBlockBoundary(
|
|
nsIEditor::EDirection aDirectionAndAmount,
|
|
nsIEditor::EStripWrappers aStripWrappers, Element& aOtherBlockElement,
|
|
const EditorDOMPoint& aCaretPoint, WSRunObject& aWSRunObjectAtCaret) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aCaretPoint.IsSet());
|
|
|
|
// Make sure it's not a table element. If so, cancel the operation
|
|
// (translation: users cannot backspace or delete across table cells)
|
|
if (HTMLEditUtils::IsTableElement(&aOtherBlockElement)) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
// Next to a block. See if we are between a block and a br. If so, we
|
|
// really want to delete the br. Else join content at selection to the
|
|
// block.
|
|
WSType otherWSType;
|
|
nsCOMPtr<nsINode> otherNode;
|
|
|
|
// Find node in other direction
|
|
if (aDirectionAndAmount == nsIEditor::eNext) {
|
|
aWSRunObjectAtCaret.PriorVisibleNode(aCaretPoint, address_of(otherNode),
|
|
nullptr, &otherWSType);
|
|
} else {
|
|
aWSRunObjectAtCaret.NextVisibleNode(aCaretPoint, address_of(otherNode),
|
|
nullptr, &otherWSType);
|
|
}
|
|
|
|
// First find the adjacent node in the block
|
|
nsCOMPtr<nsIContent> leafNode;
|
|
nsCOMPtr<nsINode> leftNode, rightNode;
|
|
if (aDirectionAndAmount == nsIEditor::ePrevious) {
|
|
leafNode = GetLastEditableLeaf(aOtherBlockElement);
|
|
leftNode = leafNode;
|
|
rightNode = aCaretPoint.GetContainer();
|
|
} else {
|
|
leafNode = GetFirstEditableLeaf(aOtherBlockElement);
|
|
leftNode = aCaretPoint.GetContainer();
|
|
rightNode = leafNode;
|
|
}
|
|
|
|
bool didBRElementDeleted = false;
|
|
if (otherNode->IsHTMLElement(nsGkAtoms::br)) {
|
|
nsresult rv = DeleteNodeWithTransaction(*otherNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
didBRElementDeleted = true;
|
|
}
|
|
|
|
// Don't cross table boundaries
|
|
if (leftNode && rightNode &&
|
|
HTMLEditor::NodesInDifferentTableElements(*leftNode, *rightNode)) {
|
|
// If we have not deleted `<br>` element and are not called recursively,
|
|
// we should call `DeleteSelectionWithTransaction()` here, but we cannot
|
|
// detect it for now. Therefore, we should just tell the caller of that
|
|
// we does nothing.
|
|
return didBRElementDeleted ? EditActionHandled() : EditActionIgnored();
|
|
}
|
|
|
|
if (didBRElementDeleted) {
|
|
// Put selection at edge of block and we are done.
|
|
if (NS_WARN_IF(!leafNode)) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
EditorDOMPoint newSel =
|
|
GetGoodCaretPointFor(*leafNode, aDirectionAndAmount);
|
|
if (NS_WARN_IF(!newSel.IsSet())) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
IgnoredErrorResult error;
|
|
SelectionRefPtr()->Collapse(newSel, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(!error.Failed(),
|
|
"Selection::Collapse() failed, but ignored");
|
|
return EditActionHandled();
|
|
}
|
|
|
|
// Else we are joining content to block
|
|
EditActionResult result(NS_OK);
|
|
EditorDOMPoint pointToPutCaret(aCaretPoint);
|
|
{
|
|
AutoTrackDOMPoint tracker(RangeUpdaterRef(), &pointToPutCaret);
|
|
if (NS_WARN_IF(!leftNode) || NS_WARN_IF(!leftNode->IsContent()) ||
|
|
NS_WARN_IF(!rightNode) || NS_WARN_IF(!rightNode->IsContent())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
result |=
|
|
TryToJoinBlocksWithTransaction(MOZ_KnownLive(*leftNode->AsContent()),
|
|
MOZ_KnownLive(*rightNode->AsContent()));
|
|
if (NS_WARN_IF(result.Failed())) {
|
|
return result;
|
|
}
|
|
}
|
|
|
|
// If TryToJoinBlocksWithTransaction() didn't handle it and it's not
|
|
// canceled, user may want to modify the start leaf node or the last leaf
|
|
// node of the block.
|
|
if (!result.Handled() && !result.Canceled() &&
|
|
leafNode != aCaretPoint.GetContainer()) {
|
|
int32_t offset = aDirectionAndAmount == nsIEditor::ePrevious
|
|
? static_cast<int32_t>(leafNode->Length())
|
|
: 0;
|
|
DebugOnly<nsresult> rv = SelectionRefPtr()->Collapse(leafNode, offset);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return result.SetResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"Selection::Collapse() failed, but ignored");
|
|
EditActionResult result =
|
|
HandleDeleteSelectionInternal(aDirectionAndAmount, aStripWrappers);
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"Nested HandleDeleteSelectionInternal() failed");
|
|
return result;
|
|
}
|
|
|
|
// Otherwise, we must have deleted the selection as user expected.
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->Collapse(pointToPutCaret, ignoredError);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return result.SetResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(!ignoredError.Failed(),
|
|
"Failed to selection at deleted point");
|
|
return result;
|
|
}
|
|
|
|
EditActionResult
|
|
HTMLEditor::HandleDeleteCollapsedSelectionAtCurrentBlockBoundary(
|
|
nsIEditor::EDirection aDirectionAndAmount, Element& aCurrentBlockElement,
|
|
const EditorDOMPoint& aCaretPoint) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
// At edge of our block. Look beside it and see if we can join to an
|
|
// adjacent block
|
|
|
|
// Make sure it's not a table element. If so, cancel the operation
|
|
// (translation: users cannot backspace or delete across table cells)
|
|
if (HTMLEditUtils::IsTableElement(&aCurrentBlockElement)) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
// First find the relevant nodes
|
|
nsCOMPtr<nsINode> leftNode, rightNode;
|
|
if (aDirectionAndAmount == nsIEditor::ePrevious) {
|
|
leftNode = GetPreviousEditableHTMLNode(aCurrentBlockElement);
|
|
rightNode = aCaretPoint.GetContainer();
|
|
} else {
|
|
rightNode = GetNextEditableHTMLNode(aCurrentBlockElement);
|
|
leftNode = aCaretPoint.GetContainer();
|
|
}
|
|
|
|
// Nothing to join
|
|
if (!leftNode || !rightNode) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
// Don't cross table boundaries -- cancel it
|
|
if (HTMLEditor::NodesInDifferentTableElements(*leftNode, *rightNode)) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
EditActionResult result(NS_OK);
|
|
EditorDOMPoint pointToPutCaret(aCaretPoint);
|
|
{
|
|
AutoTrackDOMPoint tracker(RangeUpdaterRef(), &pointToPutCaret);
|
|
if (NS_WARN_IF(!leftNode->IsContent()) ||
|
|
NS_WARN_IF(!rightNode->IsContent())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
result |=
|
|
TryToJoinBlocksWithTransaction(MOZ_KnownLive(*leftNode->AsContent()),
|
|
MOZ_KnownLive(*rightNode->AsContent()));
|
|
// This should claim that trying to join the block means that
|
|
// this handles the action because the caller shouldn't do anything
|
|
// anymore in this case.
|
|
result.MarkAsHandled();
|
|
if (NS_WARN_IF(result.Failed())) {
|
|
return result;
|
|
}
|
|
}
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->Collapse(pointToPutCaret, ignoredError);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return result.SetResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(!ignoredError.Failed(), "Failed to collapse selection");
|
|
return result;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleDeleteNonCollapsedSelection(
|
|
nsIEditor::EDirection aDirectionAndAmount,
|
|
nsIEditor::EStripWrappers aStripWrappers,
|
|
SelectionWasCollapsed aSelectionWasCollapsed) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
MOZ_ASSERT(!SelectionRefPtr()->IsCollapsed());
|
|
|
|
// Else we have a non-collapsed selection. First adjust the selection.
|
|
// XXX Why do we extend selection only when there is only one range?
|
|
if (SelectionRefPtr()->RangeCount() == 1) {
|
|
if (nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0)) {
|
|
RefPtr<StaticRange> extendedRange =
|
|
GetExtendedRangeToIncludeInvisibleNodes(*firstRange);
|
|
if (NS_WARN_IF(!extendedRange)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
ErrorResult error;
|
|
MOZ_KnownLive(SelectionRefPtr())
|
|
->SetStartAndEndInLimiter(extendedRange->StartRef().AsRaw(),
|
|
extendedRange->EndRef().AsRaw(), error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return EditActionResult(error.StealNSResult());
|
|
}
|
|
}
|
|
}
|
|
|
|
// Remember that we did a ranged delete for the benefit of AfterEditInner().
|
|
TopLevelEditSubActionDataRef().mDidDeleteNonCollapsedRange = true;
|
|
|
|
nsRange* firstRange = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
EditorDOMPoint firstRangeStart(firstRange->StartRef());
|
|
EditorDOMPoint firstRangeEnd(firstRange->EndRef());
|
|
if (NS_WARN_IF(!firstRangeStart.IsSet()) ||
|
|
NS_WARN_IF(!firstRangeEnd.IsSet())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
// Figure out if the endpoints are in nodes that can be merged. Adjust
|
|
// surrounding whitespace in preparation to delete selection.
|
|
if (!IsPlaintextEditor()) {
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
nsCOMPtr<nsINode> startNode = firstRangeStart.GetContainer();
|
|
int32_t startOffset = firstRangeStart.Offset();
|
|
nsCOMPtr<nsINode> endNode = firstRangeEnd.GetContainer();
|
|
int32_t endOffset = firstRangeEnd.Offset();
|
|
nsresult rv = WSRunObject::PrepareToDeleteRange(
|
|
this, address_of(startNode), &startOffset, address_of(endNode),
|
|
&endOffset);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
firstRangeStart.Set(startNode, startOffset);
|
|
firstRangeEnd.Set(endNode, endOffset);
|
|
if (NS_WARN_IF(!firstRangeStart.IsSet()) ||
|
|
NS_WARN_IF(!firstRangeEnd.IsSet())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
}
|
|
|
|
// XXX This is odd. We do we simply use `DeleteSelectionWithTransaction()`
|
|
// only when **first** range is in same container?
|
|
if (firstRangeStart.GetContainer() == firstRangeEnd.GetContainer()) {
|
|
{
|
|
AutoTrackDOMPoint startTracker(RangeUpdaterRef(), &firstRangeStart);
|
|
AutoTrackDOMPoint endTracker(RangeUpdaterRef(), &firstRangeEnd);
|
|
|
|
nsresult rv =
|
|
DeleteSelectionWithTransaction(aDirectionAndAmount, aStripWrappers);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
}
|
|
nsresult rv = DeleteUnnecessaryNodesAndCollapseSelection(
|
|
aDirectionAndAmount, firstRangeStart, firstRangeEnd);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"DeleteUnnecessaryNodesAndCollapseSelection() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
// Figure out mailcite ancestors
|
|
RefPtr<Element> startCiteNode =
|
|
GetMostAncestorMailCiteElement(*firstRangeStart.GetContainer());
|
|
RefPtr<Element> endCiteNode =
|
|
GetMostAncestorMailCiteElement(*firstRangeEnd.GetContainer());
|
|
|
|
// If we only have a mailcite at one of the two endpoints, set the
|
|
// directionality of the deletion so that the selection will end up
|
|
// outside the mailcite.
|
|
if (startCiteNode && !endCiteNode) {
|
|
aDirectionAndAmount = nsIEditor::eNext;
|
|
} else if (!startCiteNode && endCiteNode) {
|
|
aDirectionAndAmount = nsIEditor::ePrevious;
|
|
}
|
|
|
|
// Figure out block parents
|
|
RefPtr<Element> leftBlock =
|
|
HTMLEditor::GetBlock(*firstRangeStart.GetContainer());
|
|
RefPtr<Element> rightBlock =
|
|
HTMLEditor::GetBlock(*firstRangeEnd.GetContainer());
|
|
if (NS_WARN_IF(!leftBlock) || NS_WARN_IF(!rightBlock)) {
|
|
return EditActionHandled(NS_ERROR_FAILURE); // XXX "handled"??
|
|
}
|
|
|
|
// XXX This is also odd. We do we simply use
|
|
// `DeleteSelectionWithTransaction()` only when **first** range is in
|
|
// same block?
|
|
if (leftBlock && leftBlock == rightBlock) {
|
|
{
|
|
AutoTrackDOMPoint startTracker(RangeUpdaterRef(), &firstRangeStart);
|
|
AutoTrackDOMPoint endTracker(RangeUpdaterRef(), &firstRangeEnd);
|
|
|
|
DebugOnly<nsresult> rv =
|
|
DeleteSelectionWithTransaction(aDirectionAndAmount, aStripWrappers);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"DeleteSelectionWithTransaction() failed, but ignored");
|
|
}
|
|
nsresult rv = DeleteUnnecessaryNodesAndCollapseSelection(
|
|
aDirectionAndAmount, firstRangeStart, firstRangeEnd);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"DeleteUnnecessaryNodesAndCollapseSelection() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
// Deleting across blocks.
|
|
|
|
// If left block and right block are adjuscent siblings and they are same
|
|
// type of elements, we can merge them after deleting the selected contents.
|
|
// MOOSE: this could conceivably screw up a table.. fix me.
|
|
if (leftBlock->GetParentNode() == rightBlock->GetParentNode() &&
|
|
AreNodesSameType(*leftBlock, *rightBlock) &&
|
|
// XXX What's special about these three types of block?
|
|
(leftBlock->IsHTMLElement(nsGkAtoms::p) ||
|
|
HTMLEditUtils::IsListItem(leftBlock) ||
|
|
HTMLEditUtils::IsHeader(*leftBlock))) {
|
|
// First delete the selection
|
|
nsresult rv =
|
|
DeleteSelectionWithTransaction(aDirectionAndAmount, aStripWrappers);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
// Join blocks
|
|
EditorDOMPoint atFirstChildOfTheLastRightNode =
|
|
JoinNodesDeepWithTransaction(*leftBlock, *rightBlock);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(!atFirstChildOfTheLastRightNode.IsSet())) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
// Fix up selection
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(atFirstChildOfTheLastRightNode, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(!error.Failed(), "Selection::Collapse() failed");
|
|
return EditActionHandled(error.StealNSResult());
|
|
}
|
|
|
|
// Otherwise, delete every nodes in all ranges, then, clean up something.
|
|
EditActionResult result(NS_OK);
|
|
result.MarkAsHandled();
|
|
{
|
|
AutoTrackDOMPoint startTracker(RangeUpdaterRef(), &firstRangeStart);
|
|
AutoTrackDOMPoint endTracker(RangeUpdaterRef(), &firstRangeEnd);
|
|
|
|
// Else blocks not same type, or not siblings. Delete everything
|
|
// except table elements.
|
|
bool join = true;
|
|
|
|
AutoRangeArray arrayOfRanges(SelectionRefPtr());
|
|
for (auto& range : arrayOfRanges.mRanges) {
|
|
// Build a list of nodes in the range
|
|
nsTArray<OwningNonNull<nsINode>> arrayOfNodes;
|
|
TrivialFunctor functor;
|
|
DOMSubtreeIterator iter;
|
|
nsresult rv = iter.Init(*range);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return result.SetResult(rv);
|
|
}
|
|
iter.AppendList(functor, arrayOfNodes);
|
|
|
|
// Now that we have the list, delete non-table elements
|
|
int32_t listCount = arrayOfNodes.Length();
|
|
for (int32_t j = 0; j < listCount; j++) {
|
|
OwningNonNull<nsINode> node = arrayOfNodes[0];
|
|
nsresult rv = DeleteElementsExceptTableRelatedElements(node);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return result.SetResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"Failed to elements except table related elements");
|
|
arrayOfNodes.RemoveElementAt(0);
|
|
// If something visible is deleted, no need to join. Visible means
|
|
// all nodes except non-visible textnodes and breaks.
|
|
if (join && aSelectionWasCollapsed == SelectionWasCollapsed::Yes) {
|
|
if (!node->IsContent()) {
|
|
join = false;
|
|
continue;
|
|
}
|
|
nsIContent* content = node->AsContent();
|
|
if (Text* text = content->GetAsText()) {
|
|
join = !IsInVisibleTextFrames(*text);
|
|
} else {
|
|
join = content->IsHTMLElement(nsGkAtoms::br) &&
|
|
!IsVisibleBRElement(node);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check endpoints for possible text deletion. We can assume that if
|
|
// text node is found, we can delete to end or to begining as
|
|
// appropriate, since the case where both sel endpoints in same text
|
|
// node was already handled (we wouldn't be here)
|
|
if (firstRangeStart.IsInTextNode() && !firstRangeStart.IsEndOfContainer()) {
|
|
// Delete to last character
|
|
OwningNonNull<Text> textNode = *firstRangeStart.GetContainerAsText();
|
|
nsresult rv = DeleteTextWithTransaction(
|
|
textNode, firstRangeStart.Offset(),
|
|
firstRangeStart.GetContainer()->Length() - firstRangeStart.Offset());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return result.SetResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return result.SetResult(rv);
|
|
}
|
|
}
|
|
if (firstRangeEnd.IsInTextNode() && !firstRangeEnd.IsStartOfContainer()) {
|
|
// Delete to first character
|
|
OwningNonNull<Text> textNode = *firstRangeEnd.GetContainerAsText();
|
|
nsresult rv =
|
|
DeleteTextWithTransaction(textNode, 0, firstRangeEnd.Offset());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return result.SetResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return result.SetResult(rv);
|
|
}
|
|
}
|
|
|
|
if (join) {
|
|
result |= TryToJoinBlocksWithTransaction(*leftBlock, *rightBlock);
|
|
if (NS_WARN_IF(result.Failed())) {
|
|
return result;
|
|
}
|
|
|
|
// If we're joining blocks: if deleting forward the selection should
|
|
// be collapsed to the end of the selection, if deleting backward the
|
|
// selection should be collapsed to the beginning of the selection.
|
|
// But if we're not joining then the selection should collapse to the
|
|
// beginning of the selection if we'redeleting forward, because the
|
|
// end of the selection will still be in the next block. And same
|
|
// thing for deleting backwards (selection should collapse to the end,
|
|
// because the beginning will still be in the first block). See Bug
|
|
// 507936.
|
|
if (aDirectionAndAmount == nsIEditor::eNext) {
|
|
aDirectionAndAmount = nsIEditor::ePrevious;
|
|
} else {
|
|
aDirectionAndAmount = nsIEditor::eNext;
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult rv = DeleteUnnecessaryNodesAndCollapseSelection(
|
|
aDirectionAndAmount, firstRangeStart, firstRangeEnd);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"DeleteUnnecessaryNodesAndCollapseSelection() failed");
|
|
return result.SetResult(rv);
|
|
}
|
|
|
|
nsresult HTMLEditor::DeleteUnnecessaryNodesAndCollapseSelection(
|
|
nsIEditor::EDirection aDirectionAndAmount,
|
|
const EditorDOMPoint& aSelectionStartPoint,
|
|
const EditorDOMPoint& aSelectionEndPoint) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
EditorDOMPoint atCaret(aSelectionStartPoint);
|
|
EditorDOMPoint selectionEndPoint(aSelectionEndPoint);
|
|
|
|
// If we're handling D&D, this is called to delete dragging item from the
|
|
// tree. In this case, we should move parent blocks if it becomes empty.
|
|
if (GetEditAction() == EditAction::eDrop) {
|
|
MOZ_ASSERT(atCaret.GetContainer() == selectionEndPoint.GetContainer());
|
|
MOZ_ASSERT(atCaret.Offset() == selectionEndPoint.Offset());
|
|
{
|
|
AutoTrackDOMPoint startTracker(RangeUpdaterRef(), &atCaret);
|
|
AutoTrackDOMPoint endTracker(RangeUpdaterRef(), &selectionEndPoint);
|
|
|
|
nsresult rv = DeleteParentBlocksWithTransactionIfEmpty(atCaret);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
TopLevelEditSubActionDataRef().mDidDeleteEmptyParentBlocks = rv == NS_OK;
|
|
}
|
|
// If we removed parent blocks, Selection should be collapsed at where
|
|
// the most ancestor empty block has been.
|
|
if (TopLevelEditSubActionDataRef().mDidDeleteEmptyParentBlocks) {
|
|
nsresult rv = SelectionRefPtr()->Collapse(atCaret.ToRawRangeBoundary());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Selection::Collapse() failed");
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// We might have left only collapsed whitespace in the start/end nodes
|
|
{
|
|
AutoTrackDOMPoint startTracker(RangeUpdaterRef(), &atCaret);
|
|
AutoTrackDOMPoint endTracker(RangeUpdaterRef(), &selectionEndPoint);
|
|
|
|
nsresult rv = DeleteNodeIfInvisibleAndEditableTextNode(
|
|
MOZ_KnownLive(*atCaret.GetContainer()));
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"DeleteNodeIfInvisibleAndEditableTextNode() failed to "
|
|
"remove start node, but ignored");
|
|
rv = DeleteNodeIfInvisibleAndEditableTextNode(
|
|
MOZ_KnownLive(*selectionEndPoint.GetContainer()));
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"DeleteNodeIfInvisibleAndEditableTextNode() failed to "
|
|
"remove end node, but ignored");
|
|
}
|
|
|
|
nsresult rv =
|
|
SelectionRefPtr()->Collapse(aDirectionAndAmount == nsIEditor::ePrevious
|
|
? selectionEndPoint.ToRawRangeBoundary()
|
|
: atCaret.ToRawRangeBoundary());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Selection::Collapse() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::DeleteNodeIfInvisibleAndEditableTextNode(nsINode& aNode) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
Text* text = aNode.GetAsText();
|
|
if (!text) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (IsVisibleTextNode(*text) || !IsModifiableNode(*text)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult rv = DeleteNodeWithTransaction(aNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "DeleteNodeWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::InsertBRElementIfHardLineIsEmptyAndEndsWithBlockBoundary(
|
|
const EditorDOMPoint& aPointToInsert) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aPointToInsert.IsSet());
|
|
|
|
// If container of the point is not in a block, we don't need to put a
|
|
// `<br>` element here.
|
|
if (!HTMLEditor::NodeIsBlockStatic(*aPointToInsert.GetContainer())) {
|
|
return NS_OK;
|
|
}
|
|
|
|
WSRunObject wsObj(this, aPointToInsert);
|
|
// If the point is not start of a hard line, we don't need to put a `<br>`
|
|
// element here.
|
|
if (!(wsObj.mStartReason & (WSType::block | WSType::br))) {
|
|
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 (!(wsObj.mEndReason & WSType::block)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// If we cannot insert a `<br>` element here, do nothing.
|
|
if (!CanContainTag(*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, "Failed to insert <br> element");
|
|
return brElement ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorDOMPoint HTMLEditor::GetGoodCaretPointFor(
|
|
nsIContent& aContent, nsIEditor::EDirection aDirectionAndAmount) {
|
|
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() || IsContainer(&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(&aContent);
|
|
DebugOnly<bool> advanced = ret.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced, "Failed to advance offset");
|
|
return ret;
|
|
}
|
|
|
|
// Otherwise, we should put caret at the invisible `<br>` element.
|
|
return EditorDOMPoint(&aContent);
|
|
}
|
|
|
|
EditActionResult HTMLEditor::TryToJoinBlocksWithTransaction(
|
|
nsIContent& aLeftContentInBlock, nsIContent& aRightContentInBlock) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
RefPtr<Element> leftBlock = GetBlock(aLeftContentInBlock);
|
|
RefPtr<Element> rightBlock = GetBlock(aRightContentInBlock);
|
|
|
|
// Sanity checks
|
|
if (NS_WARN_IF(!leftBlock) || NS_WARN_IF(!rightBlock)) {
|
|
return EditActionIgnored(NS_ERROR_NULL_POINTER);
|
|
}
|
|
if (NS_WARN_IF(leftBlock == rightBlock)) {
|
|
return EditActionIgnored(NS_ERROR_UNEXPECTED);
|
|
}
|
|
|
|
if (HTMLEditUtils::IsTableElement(leftBlock) ||
|
|
HTMLEditUtils::IsTableElement(rightBlock)) {
|
|
// Do not try to merge table elements
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
// Make sure we don't try to move things into HR's, which look like blocks
|
|
// but aren't containers
|
|
if (leftBlock->IsHTMLElement(nsGkAtoms::hr)) {
|
|
leftBlock = GetBlockNodeParent(leftBlock);
|
|
if (NS_WARN_IF(!leftBlock)) {
|
|
return EditActionIgnored(NS_ERROR_UNEXPECTED);
|
|
}
|
|
}
|
|
if (rightBlock->IsHTMLElement(nsGkAtoms::hr)) {
|
|
rightBlock = GetBlockNodeParent(rightBlock);
|
|
if (NS_WARN_IF(!rightBlock)) {
|
|
return EditActionIgnored(NS_ERROR_UNEXPECTED);
|
|
}
|
|
}
|
|
|
|
// Bail if both blocks the same
|
|
if (leftBlock == rightBlock) {
|
|
return EditActionIgnored();
|
|
}
|
|
|
|
// Joining a list item to its parent is a NOP.
|
|
if (HTMLEditUtils::IsList(leftBlock) &&
|
|
HTMLEditUtils::IsListItem(rightBlock) &&
|
|
rightBlock->GetParentNode() == leftBlock) {
|
|
return EditActionHandled();
|
|
}
|
|
|
|
// Special rule here: if we are trying to join list items, and they are in
|
|
// different lists, join the lists instead.
|
|
bool mergeListElements = false;
|
|
nsAtom* leftListElementTagName = nsGkAtoms::_empty;
|
|
RefPtr<Element> leftListElement, rightListElement;
|
|
if (HTMLEditUtils::IsListItem(leftBlock) &&
|
|
HTMLEditUtils::IsListItem(rightBlock)) {
|
|
// XXX leftListElement and/or rightListElement may be not list elements.
|
|
leftListElement = leftBlock->GetParentElement();
|
|
rightListElement = rightBlock->GetParentElement();
|
|
EditorDOMPoint atChildInBlock;
|
|
if (leftListElement && rightListElement &&
|
|
leftListElement != rightListElement &&
|
|
!EditorUtils::IsDescendantOf(*leftListElement, *rightBlock,
|
|
&atChildInBlock) &&
|
|
!EditorUtils::IsDescendantOf(*rightListElement, *leftBlock,
|
|
&atChildInBlock)) {
|
|
// There are some special complications if the lists are descendants of
|
|
// the other lists' items. Note that it is okay for them to be
|
|
// descendants of the other lists themselves, which is the usual case for
|
|
// sublists in our implementation.
|
|
MOZ_DIAGNOSTIC_ASSERT(!atChildInBlock.IsSet());
|
|
leftBlock = leftListElement;
|
|
rightBlock = rightListElement;
|
|
mergeListElements = true;
|
|
leftListElementTagName = leftListElement->NodeInfo()->NameAtom();
|
|
}
|
|
}
|
|
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
|
|
// If the left block element is in the right block element, move the hard
|
|
// line including the right block element to end of the left block.
|
|
// However, if we are merging list elements, we don't join them.
|
|
EditorDOMPoint atRightBlockChild;
|
|
if (EditorUtils::IsDescendantOf(*leftBlock, *rightBlock,
|
|
&atRightBlockChild)) {
|
|
MOZ_ASSERT(atRightBlockChild.GetContainer() == rightBlock);
|
|
DebugOnly<bool> advanced = atRightBlockChild.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(
|
|
advanced,
|
|
"Failed to advance offset to after child of rightBlock, "
|
|
"leftBlock is a descendant of the child");
|
|
nsresult rv =
|
|
WSRunObject::Scrub(*this, EditorDOMPoint::AtEndOf(*leftBlock));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionIgnored(rv);
|
|
}
|
|
|
|
{
|
|
// We can't just track rightBlock because it's an Element.
|
|
AutoTrackDOMPoint tracker(RangeUpdaterRef(), &atRightBlockChild);
|
|
rv = WSRunObject::Scrub(*this, atRightBlockChild);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionIgnored(rv);
|
|
}
|
|
|
|
// XXX AutoTrackDOMPoint instance, tracker, hasn't been destroyed here.
|
|
// Do we really need to do update rightBlock here??
|
|
if (atRightBlockChild.GetContainerAsElement()) {
|
|
rightBlock = atRightBlockChild.GetContainerAsElement();
|
|
} else if (NS_WARN_IF(!atRightBlockChild.GetContainerParentAsElement())) {
|
|
return EditActionIgnored(NS_ERROR_UNEXPECTED);
|
|
} else {
|
|
rightBlock = atRightBlockChild.GetContainerParentAsElement();
|
|
}
|
|
}
|
|
|
|
// Do br adjustment.
|
|
RefPtr<Element> invisibleBRElement =
|
|
GetInvisibleBRElementAt(EditorDOMPoint::AtEndOf(*leftBlock));
|
|
EditActionResult ret(NS_OK);
|
|
if (NS_WARN_IF(mergeListElements)) {
|
|
// Since 2002, here was the following comment:
|
|
// > The idea here is to take all children in rightListElement that are
|
|
// > past offset, and pull them into leftlistElement.
|
|
// However, this has never been performed because we are here only when
|
|
// neither left list nor right list is a descendant of the other but
|
|
// in such case, getting a list item in the right list node almost
|
|
// always failed since a variable for offset of
|
|
// rightListElement->GetChildAt() was not initialized. So, it might be
|
|
// a bug, but we should keep this traditional behavior for now. If you
|
|
// find when we get here, please remove this comment if we don't need to
|
|
// do it. Otherwise, please move children of the right list node to the
|
|
// end of the left list node.
|
|
|
|
// XXX Although, we don't do nothing here, but for keeping traditional
|
|
// behavior, we should mark as handled.
|
|
ret.MarkAsHandled();
|
|
} else {
|
|
// XXX Why do we ignore the result of MoveOneHardLineContents()?
|
|
NS_WARNING_ASSERTION(rightBlock == atRightBlockChild.GetContainer(),
|
|
"The relation is not guaranteed but assumed");
|
|
MoveNodeResult moveNodeResult = MoveOneHardLineContents(
|
|
EditorDOMPoint(rightBlock, atRightBlockChild.Offset()),
|
|
EditorDOMPoint(leftBlock, 0), MoveToEndOfContainer::Yes);
|
|
if (NS_WARN_IF(moveNodeResult.EditorDestroyed())) {
|
|
return ret.SetResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(moveNodeResult.Succeeded(),
|
|
"MoveOneHardLineContents() failed, but ignored");
|
|
if (moveNodeResult.Succeeded()) {
|
|
ret |= moveNodeResult;
|
|
}
|
|
// Now, all children of rightBlock were moved to leftBlock. So,
|
|
// atRightBlockChild is now invalid.
|
|
atRightBlockChild.Clear();
|
|
}
|
|
|
|
if (!invisibleBRElement) {
|
|
return ret;
|
|
}
|
|
|
|
rv = DeleteNodeWithTransaction(*invisibleBRElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"DeleteNodeWithTransaction() failed removing "
|
|
"invisible `<br>`, but ignored");
|
|
if (NS_SUCCEEDED(rv)) {
|
|
ret.MarkAsHandled();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
MOZ_DIAGNOSTIC_ASSERT(!atRightBlockChild.IsSet());
|
|
|
|
// If the right block element is in the left block element:
|
|
// - move list item elements in the right block element to where the left
|
|
// list element is
|
|
// - or first hard line in the right block element to where:
|
|
// - the left block element is.
|
|
// - or the given left content in the left block is.
|
|
EditorDOMPoint atLeftBlockChild;
|
|
if (EditorUtils::IsDescendantOf(*rightBlock, *leftBlock, &atLeftBlockChild)) {
|
|
MOZ_ASSERT(leftBlock == atLeftBlockChild.GetContainer());
|
|
|
|
nsresult rv = WSRunObject::Scrub(*this, EditorDOMPoint(rightBlock, 0));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionIgnored(rv);
|
|
}
|
|
|
|
{
|
|
// We can't just track leftBlock because it's an Element, so track
|
|
// something else.
|
|
AutoTrackDOMPoint tracker(RangeUpdaterRef(), &atLeftBlockChild);
|
|
rv = WSRunObject::Scrub(
|
|
*this, EditorDOMPoint(leftBlock, atLeftBlockChild.Offset()));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionIgnored(rv);
|
|
}
|
|
// XXX AutoTrackDOMPoint instance, tracker, hasn't been destroyed here.
|
|
// Do we really need to do update rightBlock here??
|
|
if (atLeftBlockChild.GetContainerAsElement()) {
|
|
leftBlock = atLeftBlockChild.GetContainerAsElement();
|
|
} else if (NS_WARN_IF(!atLeftBlockChild.GetContainerParentAsElement())) {
|
|
return EditActionIgnored(NS_ERROR_UNEXPECTED);
|
|
} else {
|
|
leftBlock = atLeftBlockChild.GetContainerParentAsElement();
|
|
}
|
|
}
|
|
|
|
// Do br adjustment.
|
|
RefPtr<Element> invisibleBRElement =
|
|
GetInvisibleBRElementAt(atLeftBlockChild);
|
|
EditActionResult ret(NS_OK);
|
|
if (mergeListElements) {
|
|
// XXX Why do we ignore the error from MoveChildren()?
|
|
// XXX Why is it guaranteed that `atLeftBlockChild.GetContainer()` is
|
|
// `leftListElement` here? Looks like that above code may run
|
|
// mutation event listeners.
|
|
NS_WARNING_ASSERTION(leftListElement == atLeftBlockChild.GetContainer(),
|
|
"This is not guaranteed, but assumed");
|
|
MoveNodeResult moveNodeResult = MoveChildren(
|
|
*rightListElement,
|
|
EditorDOMPoint(leftListElement, atLeftBlockChild.Offset()));
|
|
if (NS_WARN_IF(moveNodeResult.EditorDestroyed())) {
|
|
return ret.SetResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(moveNodeResult.Succeeded(),
|
|
"MoveChildren() failed, but ignored");
|
|
if (moveNodeResult.Succeeded()) {
|
|
ret |= moveNodeResult;
|
|
}
|
|
// atLeftBlockChild was moved to rightListElement. So, it's invalid now.
|
|
atLeftBlockChild.Clear();
|
|
} else {
|
|
// Left block is a parent of right block, and the parent of the previous
|
|
// visible content. Right block is a child and contains the contents we
|
|
// want to move.
|
|
|
|
EditorDOMPoint atPreviousContent;
|
|
if (&aLeftContentInBlock == leftBlock) {
|
|
// We are working with valid HTML, aLeftContentInBlock is a block node,
|
|
// and is therefore allowed to contain rightBlock. This is the
|
|
// simple case, we will simply move the content in rightBlock
|
|
// out of its block.
|
|
atPreviousContent = atLeftBlockChild;
|
|
} else {
|
|
// We try to work as well as possible with HTML that's already invalid.
|
|
// Although "right block" is a block, and a block must not be contained
|
|
// in inline elements, reality is that broken documents do exist. The
|
|
// DIRECT parent of "left NODE" might be an inline element. Previous
|
|
// versions of this code skipped inline parents until the first block
|
|
// parent was found (and used "left block" as the destination).
|
|
// However, in some situations this strategy moves the content to an
|
|
// unexpected position. (see bug 200416) The new idea is to make the
|
|
// moving content a sibling, next to the previous visible content.
|
|
atPreviousContent.Set(&aLeftContentInBlock);
|
|
|
|
// We want to move our content just after the previous visible node.
|
|
atPreviousContent.AdvanceOffset();
|
|
}
|
|
|
|
MOZ_ASSERT(atPreviousContent.IsSet());
|
|
|
|
// Because we don't want the moving content to receive the style of the
|
|
// previous content, we split the previous content's style.
|
|
|
|
RefPtr<Element> editingHost = GetActiveEditingHost();
|
|
// XXX It's odd to continue handling this edit action if there is no
|
|
// editing host.
|
|
if (!editingHost || &aLeftContentInBlock != editingHost) {
|
|
nsCOMPtr<nsIContent> splittedPreviousContent;
|
|
nsCOMPtr<nsINode> previousContentParent =
|
|
atPreviousContent.GetContainer();
|
|
int32_t previousContentOffset = atPreviousContent.Offset();
|
|
rv = SplitStyleAbovePoint(
|
|
address_of(previousContentParent), &previousContentOffset, nullptr,
|
|
nullptr, nullptr, getter_AddRefs(splittedPreviousContent));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionIgnored(rv);
|
|
}
|
|
|
|
if (splittedPreviousContent) {
|
|
atPreviousContent.Set(splittedPreviousContent);
|
|
if (NS_WARN_IF(!atPreviousContent.IsSet())) {
|
|
return EditActionIgnored(NS_ERROR_NULL_POINTER);
|
|
}
|
|
} else {
|
|
atPreviousContent.Set(previousContentParent, previousContentOffset);
|
|
if (NS_WARN_IF(!atPreviousContent.IsSet())) {
|
|
return EditActionIgnored(NS_ERROR_NULL_POINTER);
|
|
}
|
|
}
|
|
}
|
|
|
|
ret |= MoveOneHardLineContents(EditorDOMPoint(rightBlock, 0),
|
|
atPreviousContent);
|
|
if (NS_WARN_IF(ret.Failed())) {
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (!invisibleBRElement) {
|
|
return ret;
|
|
}
|
|
|
|
rv = DeleteNodeWithTransaction(*invisibleBRElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return ret.SetResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"DeleteNodeWithTransaction() failed removing "
|
|
"invisible `<br>`, but ignored");
|
|
if (NS_SUCCEEDED(rv)) {
|
|
ret.MarkAsHandled();
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
MOZ_DIAGNOSTIC_ASSERT(!atRightBlockChild.IsSet());
|
|
MOZ_DIAGNOSTIC_ASSERT(!atLeftBlockChild.IsSet());
|
|
|
|
// Normal case. Blocks are siblings, or at least close enough. An example
|
|
// of the latter is <p>paragraph</p><ul><li>one<li>two<li>three</ul>. The
|
|
// first li and the p are not true siblings, but we still want to join them
|
|
// if you backspace from li into p.
|
|
|
|
// Adjust whitespace at block boundaries
|
|
nsresult rv =
|
|
WSRunObject::PrepareToJoinBlocks(*this, *leftBlock, *rightBlock);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionIgnored(rv);
|
|
}
|
|
// Do br adjustment.
|
|
RefPtr<Element> invisibleBRElement =
|
|
GetInvisibleBRElementAt(EditorDOMPoint::AtEndOf(*leftBlock));
|
|
EditActionResult ret(NS_OK);
|
|
if (mergeListElements ||
|
|
leftBlock->NodeInfo()->NameAtom() == rightBlock->NodeInfo()->NameAtom()) {
|
|
// Nodes are same type. merge them.
|
|
EditorDOMPoint atFirstChildOfRightNode;
|
|
nsresult rv = JoinNearestEditableNodesWithTransaction(
|
|
*leftBlock, *rightBlock, &atFirstChildOfRightNode);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"JoinNearestEditableNodesWithTransaction() failed, but ignored");
|
|
if (mergeListElements && atFirstChildOfRightNode.IsSet()) {
|
|
CreateElementResult convertListTypeResult = ChangeListElementType(
|
|
*rightBlock, MOZ_KnownLive(*leftListElementTagName), *nsGkAtoms::li);
|
|
if (NS_WARN_IF(convertListTypeResult.EditorDestroyed())) {
|
|
return EditActionIgnored(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(convertListTypeResult.Succeeded(),
|
|
"ChangeListElementType() failed, but ignored");
|
|
}
|
|
ret.MarkAsHandled();
|
|
} else {
|
|
// Nodes are dissimilar types.
|
|
ret |= MoveOneHardLineContents(EditorDOMPoint(rightBlock, 0),
|
|
EditorDOMPoint(leftBlock, 0),
|
|
MoveToEndOfContainer::Yes);
|
|
if (NS_WARN_IF(ret.Failed())) {
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
if (!invisibleBRElement) {
|
|
return ret.MarkAsHandled();
|
|
}
|
|
|
|
rv = DeleteNodeWithTransaction(*invisibleBRElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return ret.SetResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
// XXX In other top level if blocks, the result of
|
|
// DeleteNodeWithTransaction() is ignored. Why does only this result
|
|
// is respected?
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return ret.SetResult(rv);
|
|
}
|
|
return ret.MarkAsHandled();
|
|
}
|
|
|
|
MoveNodeResult HTMLEditor::MoveOneHardLineContents(
|
|
const EditorDOMPoint& aPointInHardLine,
|
|
const EditorDOMPoint& aPointToInsert,
|
|
MoveToEndOfContainer
|
|
aMoveToEndOfContainer /* = MoveToEndOfContainer::No */) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
AutoTArray<OwningNonNull<nsINode>, 64> arrayOfNodes;
|
|
nsresult rv = SplitInlinesAndCollectEditTargetNodesInOneHardLine(
|
|
aPointInHardLine, arrayOfNodes, EditSubAction::eMergeBlockContents,
|
|
HTMLEditor::CollectNonEditableNodes::Yes);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return MoveNodeResult(rv);
|
|
}
|
|
if (arrayOfNodes.IsEmpty()) {
|
|
return MoveNodeIgnored(aPointToInsert);
|
|
}
|
|
|
|
uint32_t offset = aPointToInsert.Offset();
|
|
MoveNodeResult result;
|
|
for (auto& node : arrayOfNodes) {
|
|
if (aMoveToEndOfContainer == MoveToEndOfContainer::Yes) {
|
|
// For backward compatibility, we should move contents to end of the
|
|
// container if this is called with MoveToEndOfContainer::Yes.
|
|
offset = aPointToInsert.GetContainer()->Length();
|
|
}
|
|
// get the node to act on
|
|
if (HTMLEditor::NodeIsBlockStatic(node)) {
|
|
// For block nodes, move their contents only, then delete block.
|
|
result |=
|
|
MoveChildren(MOZ_KnownLive(*node->AsElement()),
|
|
EditorDOMPoint(aPointToInsert.GetContainer(), offset));
|
|
if (NS_WARN_IF(result.Failed())) {
|
|
return result;
|
|
}
|
|
offset = result.NextInsertionPointRef().Offset();
|
|
DebugOnly<nsresult> rvIgnored = DeleteNodeWithTransaction(*node);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return MoveNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rvIgnored),
|
|
"DeleteNodeWithTransaction() failed, but ignored");
|
|
result.MarkAsHandled();
|
|
if (HasMutationEventListeners()) {
|
|
// Mutation event listener may make `offset` value invalid with
|
|
// removing some previous children while we call
|
|
// `DeleteNodeWithTransaction()` so that we should adjust it here.
|
|
offset = std::min(offset, aPointToInsert.GetContainer()->Length());
|
|
}
|
|
continue;
|
|
}
|
|
// XXX Different from the above block, we ignore error of moving nodes.
|
|
MoveNodeResult moveNodeResult = MoveNodeOrChildren(
|
|
MOZ_KnownLive(*node->AsContent()),
|
|
EditorDOMPoint(aPointToInsert.GetContainer(), offset));
|
|
if (NS_WARN_IF(moveNodeResult.EditorDestroyed())) {
|
|
return MoveNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(moveNodeResult.Succeeded(),
|
|
"MoveNodeOrChildren() failed, but ignored");
|
|
if (moveNodeResult.Succeeded()) {
|
|
offset = moveNodeResult.NextInsertionPointRef().Offset();
|
|
result |= moveNodeResult;
|
|
}
|
|
}
|
|
|
|
NS_WARNING_ASSERTION(result.Succeeded(), "Last MoveNodeOrChildren() failed");
|
|
return result;
|
|
}
|
|
|
|
MoveNodeResult HTMLEditor::MoveNodeOrChildren(
|
|
nsIContent& aContent, const EditorDOMPoint& aPointToInsert) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aPointToInsert.IsSet());
|
|
|
|
// Check if this node can go into the destination node
|
|
if (CanContain(*aPointToInsert.GetContainer(), aContent)) {
|
|
// If it can, move it there.
|
|
uint32_t offsetAtInserting = aPointToInsert.Offset();
|
|
nsresult rv = MoveNodeWithTransaction(aContent, aPointToInsert);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return MoveNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return MoveNodeResult(rv);
|
|
}
|
|
// Advance DOM point with offset for keeping backward compatibility.
|
|
// XXX Where should we insert next content if a mutation event listener
|
|
// break the relation of offset and moved node?
|
|
return MoveNodeHandled(aPointToInsert.GetContainer(), ++offsetAtInserting);
|
|
}
|
|
|
|
// If it can't, move its children (if any), and then delete it.
|
|
MoveNodeResult result;
|
|
if (aContent.IsElement()) {
|
|
result = MoveChildren(MOZ_KnownLive(*aContent.AsElement()), aPointToInsert);
|
|
if (NS_WARN_IF(result.Failed())) {
|
|
return result;
|
|
}
|
|
} else {
|
|
result = MoveNodeHandled(aPointToInsert);
|
|
}
|
|
|
|
nsresult rv = DeleteNodeWithTransaction(aContent);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return MoveNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return MoveNodeResult(rv);
|
|
}
|
|
if (HasMutationEventListeners()) {
|
|
// Mutation event listener may make `offset` value invalid with
|
|
// removing some previous children while we call
|
|
// `DeleteNodeWithTransaction()` so that we should adjust it here.
|
|
if (!result.NextInsertionPointRef().IsSetAndValid()) {
|
|
result = MoveNodeHandled(
|
|
EditorDOMPoint::AtEndOf(*aPointToInsert.GetContainer()));
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
MoveNodeResult HTMLEditor::MoveChildren(Element& aElement,
|
|
const EditorDOMPoint& aPointToInsert) {
|
|
MOZ_ASSERT(aPointToInsert.IsSet());
|
|
|
|
if (NS_WARN_IF(&aElement == aPointToInsert.GetContainer())) {
|
|
return MoveNodeResult(NS_ERROR_INVALID_ARG);
|
|
}
|
|
|
|
MoveNodeResult result = MoveNodeIgnored(aPointToInsert);
|
|
while (aElement.GetFirstChild()) {
|
|
result |= MoveNodeOrChildren(MOZ_KnownLive(*aElement.GetFirstChild()),
|
|
result.NextInsertionPoint());
|
|
if (NS_WARN_IF(result.Failed())) {
|
|
return result;
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
nsresult HTMLEditor::DeleteElementsExceptTableRelatedElements(nsINode& aNode) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (!HTMLEditUtils::IsTableElementButNotTable(&aNode)) {
|
|
nsresult rv = DeleteNodeWithTransaction(aNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// XXX For performance, this should just call
|
|
// DeleteElementsExceptTableRelatedElements() while there are children
|
|
// in aNode. If we need to avoid infinite loop because mutation event
|
|
// listeners can add unexpected nodes into aNode, we should just loop
|
|
// only original count of the children.
|
|
AutoTArray<OwningNonNull<nsIContent>, 10> childList;
|
|
for (nsIContent* child = aNode.GetFirstChild(); child;
|
|
child = child->GetNextSibling()) {
|
|
childList.AppendElement(*child);
|
|
}
|
|
|
|
for (const auto& child : childList) {
|
|
nsresult rv = DeleteElementsExceptTableRelatedElements(child);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::DeleteMostAncestorMailCiteElementIfEmpty(
|
|
nsIContent& aContent) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
// The element must be `<blockquote type="cite">` or
|
|
// `<span _moz_quote="true">`.
|
|
RefPtr<Element> mailCiteElement = GetMostAncestorMailCiteElement(aContent);
|
|
if (!mailCiteElement) {
|
|
return NS_OK;
|
|
}
|
|
bool isEmpty = true, seenBR = false;
|
|
IsEmptyNodeImpl(mailCiteElement, &isEmpty, true, true, false, &seenBR);
|
|
EditorDOMPoint atEmptyMailCiteElement(mailCiteElement);
|
|
{
|
|
AutoEditorDOMPointChildInvalidator lockOffset(atEmptyMailCiteElement);
|
|
nsresult rv = DeleteNodeWithTransaction(*mailCiteElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
if (NS_WARN_IF(!atEmptyMailCiteElement.IsSet()) || !seenBR) {
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(atEmptyMailCiteElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->Collapse(EditorRawDOMPoint(brElement), ignoredError);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(!ignoredError.Failed(), "Selection::Collapse() failed");
|
|
return NS_OK;
|
|
}
|
|
|
|
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 (!mRules) {
|
|
return EditActionIgnored(NS_ERROR_NOT_INITIALIZED);
|
|
}
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (result.Canceled() || NS_WARN_IF(result.Failed())) {
|
|
return result;
|
|
}
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this);
|
|
|
|
// 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.
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this,
|
|
&aListElementOrListItemElementTagName == nsGkAtoms::dd ||
|
|
&aListElementOrListItemElementTagName == nsGkAtoms::dt
|
|
? EditSubAction::eCreateOrChangeDefinitionListItem
|
|
: EditSubAction::eCreateOrChangeList,
|
|
nsIEditor::eNext);
|
|
|
|
// FYI: Ignore cancel result of WillInsert().
|
|
nsresult rv = WillInsert();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "WillInsert() failed");
|
|
|
|
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 {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
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(),
|
|
"ChangeSelectedHardLinesToList() failed");
|
|
return result;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::ChangeSelectedHardLinesToList(
|
|
nsAtom& aListElementTagName, nsAtom& aListItemElementTagName,
|
|
const nsAString& aBulletType,
|
|
SelectAllOfCurrentList aSelectAllOfCurrentList) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
|
|
AutoTArray<OwningNonNull<nsINode>, 64> arrayOfNodes;
|
|
Element* parentListElement =
|
|
aSelectAllOfCurrentList == SelectAllOfCurrentList::Yes
|
|
? GetParentListElementAtSelection()
|
|
: nullptr;
|
|
if (parentListElement) {
|
|
arrayOfNodes.AppendElement(OwningNonNull<nsINode>(*parentListElement));
|
|
} else {
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
nsresult rv =
|
|
SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges(
|
|
arrayOfNodes, EditSubAction::eCreateOrChangeList,
|
|
CollectNonEditableNodes::No);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
}
|
|
|
|
// check if all our nodes are <br>s, or empty inlines
|
|
bool bOnlyBreaks = true;
|
|
for (auto& curNode : arrayOfNodes) {
|
|
// if curNode is not a Break or empty inline, we're done
|
|
if (!TextEditUtils::IsBreak(curNode) && !IsEmptyInineNode(curNode)) {
|
|
bOnlyBreaks = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// if no nodes, we make empty list. Ditto if the user tried to make a list
|
|
// of some # of breaks.
|
|
if (arrayOfNodes.IsEmpty() || bOnlyBreaks) {
|
|
// if only breaks, delete them
|
|
if (bOnlyBreaks) {
|
|
for (auto& node : arrayOfNodes) {
|
|
nsresult rv = DeleteNodeWithTransaction(*node);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
}
|
|
}
|
|
|
|
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 (!CanContainTag(*atStartOfSelection.GetContainer(),
|
|
aListElementTagName)) {
|
|
return EditActionCanceled();
|
|
}
|
|
|
|
SplitNodeResult splitAtSelectionStartResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(aListElementTagName,
|
|
atStartOfSelection);
|
|
if (NS_WARN_IF(splitAtSelectionStartResult.Failed())) {
|
|
return EditActionResult(splitAtSelectionStartResult.Rv());
|
|
}
|
|
RefPtr<Element> theList = CreateNodeWithTransaction(
|
|
aListElementTagName, splitAtSelectionStartResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(!theList)) {
|
|
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 (NS_WARN_IF(!theListItem)) {
|
|
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();
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(EditorRawDOMPoint(theListItem, 0), error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(!error.Failed(), "Selection::Collapse() failed");
|
|
return EditActionResult(error.StealNSResult());
|
|
}
|
|
|
|
// 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 (arrayOfNodes.Length() == 1) {
|
|
if (Element* deepestDivBlockquoteOrListElement =
|
|
GetDeepestEditableOnlyChildDivBlockquoteOrListElement(
|
|
arrayOfNodes[0])) {
|
|
if (deepestDivBlockquoteOrListElement->IsAnyOfHTMLElements(
|
|
nsGkAtoms::div, nsGkAtoms::blockquote)) {
|
|
arrayOfNodes.Clear();
|
|
CollectChildren(*deepestDivBlockquoteOrListElement, arrayOfNodes, 0,
|
|
CollectListChildren::No, CollectTableChildren::No,
|
|
CollectNonEditableNodes::Yes);
|
|
} else {
|
|
arrayOfNodes.ReplaceElementAt(
|
|
0, OwningNonNull<nsINode>(*deepestDivBlockquoteOrListElement));
|
|
}
|
|
}
|
|
}
|
|
|
|
// Ok, now go through all the nodes and put then in the list,
|
|
// or whatever is approriate. Wohoo!
|
|
|
|
uint32_t listCount = arrayOfNodes.Length();
|
|
RefPtr<Element> curList, prevListItem;
|
|
|
|
for (uint32_t i = 0; i < listCount; i++) {
|
|
// here's where we actually figure out what to do
|
|
if (NS_WARN_IF(!arrayOfNodes[i]->IsContent())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
OwningNonNull<nsIContent> curNode = *arrayOfNodes[i]->AsContent();
|
|
|
|
// 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, curNode)) {
|
|
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 (IsEditable(curNode) &&
|
|
(curNode->IsHTMLElement(nsGkAtoms::br) || IsEmptyInineNode(curNode))) {
|
|
nsresult rv = DeleteNodeWithTransaction(*curNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
if (curNode->IsHTMLElement(nsGkAtoms::br)) {
|
|
prevListItem = nullptr;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsList(curNode)) {
|
|
// 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(*curNode, *curList)) {
|
|
nsresult rv = MoveNodeToEndWithTransaction(*curNode, *curList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
CreateElementResult convertListTypeResult =
|
|
ChangeListElementType(MOZ_KnownLive(*curNode->AsElement()),
|
|
aListElementTagName, aListItemElementTagName);
|
|
if (NS_WARN_IF(convertListTypeResult.Failed())) {
|
|
return EditActionResult(convertListTypeResult.Rv());
|
|
}
|
|
rv = RemoveBlockContainerWithTransaction(
|
|
MOZ_KnownLive(*convertListTypeResult.GetNewNode()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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(*curNode->AsElement()),
|
|
aListElementTagName, aListItemElementTagName);
|
|
if (NS_WARN_IF(convertListTypeResult.Failed())) {
|
|
return EditActionResult(convertListTypeResult.Rv());
|
|
}
|
|
curList = convertListTypeResult.forget();
|
|
prevListItem = nullptr;
|
|
continue;
|
|
}
|
|
|
|
EditorDOMPoint atCurNode(curNode);
|
|
if (NS_WARN_IF(!atCurNode.IsSet())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
MOZ_ASSERT(atCurNode.IsSetAndValid());
|
|
if (HTMLEditUtils::IsListItem(curNode)) {
|
|
// If current list item element is not in proper list element, we need
|
|
// to conver the list element.
|
|
if (!atCurNode.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(*curNode, *curList)) {
|
|
if (NS_WARN_IF(!atCurNode.GetContainerAsContent())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
ErrorResult error;
|
|
nsCOMPtr<nsIContent> newLeftNode =
|
|
SplitNodeWithTransaction(atCurNode, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return EditActionResult(error.StealNSResult());
|
|
}
|
|
curList = CreateNodeWithTransaction(
|
|
aListElementTagName, EditorDOMPoint(atCurNode.GetContainer()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(!curList)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
}
|
|
// Then, move current node into current list element.
|
|
nsresult rv = MoveNodeToEndWithTransaction(*curNode, *curList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
// Convert list item type if current node is different list item type.
|
|
if (!curNode->IsHTMLElement(&aListItemElementTagName)) {
|
|
RefPtr<Element> newListItemElement = ReplaceContainerWithTransaction(
|
|
MOZ_KnownLive(*curNode->AsElement()), aListItemElementTagName);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(!newListItemElement)) {
|
|
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 = atCurNode.GetContainerAsElement();
|
|
NS_WARNING_ASSERTION(
|
|
HTMLEditUtils::IsList(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 (atCurNode.GetContainer() != curList) {
|
|
nsresult rv = MoveNodeToEndWithTransaction(*curNode, *curList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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 (!curNode->IsHTMLElement(&aListItemElementTagName)) {
|
|
RefPtr<Element> newListItemElement = ReplaceContainerWithTransaction(
|
|
MOZ_KnownLive(*curNode->AsElement()), aListItemElementTagName);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(!newListItemElement)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
}
|
|
}
|
|
Element* curElement = Element::FromNode(curNode);
|
|
if (NS_WARN_IF(!curElement)) {
|
|
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(*curElement), *nsGkAtoms::type, aBulletType);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Otherwise, remove list type attribute if there is.
|
|
if (!curElement->HasAttr(nsGkAtoms::type)) {
|
|
continue;
|
|
}
|
|
nsresult rv = RemoveAttributeWithTransaction(MOZ_KnownLive(*curElement),
|
|
*nsGkAtoms::type);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
MOZ_ASSERT(!HTMLEditUtils::IsList(curNode) &&
|
|
!HTMLEditUtils::IsListItem(curNode));
|
|
|
|
// 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 (curNode->IsHTMLElement(nsGkAtoms::div)) {
|
|
prevListItem = nullptr;
|
|
CollectChildren(*curNode, arrayOfNodes, i + 1, CollectListChildren::Yes,
|
|
CollectTableChildren::Yes, CollectNonEditableNodes::Yes);
|
|
nsresult rv =
|
|
RemoveContainerWithTransaction(MOZ_KnownLive(*curNode->AsElement()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
listCount = arrayOfNodes.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,
|
|
atCurNode);
|
|
if (NS_WARN_IF(splitCurNodeResult.Failed())) {
|
|
return EditActionResult(splitCurNodeResult.Rv());
|
|
}
|
|
prevListItem = nullptr;
|
|
curList = CreateNodeWithTransaction(aListElementTagName,
|
|
splitCurNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(!curList)) {
|
|
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;
|
|
|
|
// atCurNode is now referring the right node with mOffset but
|
|
// referring the left node with mRef. So, invalidate it now.
|
|
atCurNode.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 (HTMLEditor::NodeIsInlineStatic(curNode) && prevListItem) {
|
|
nsresult rv = MoveNodeToEndWithTransaction(*curNode, *prevListItem);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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 (curNode->IsHTMLElement(nsGkAtoms::p)) {
|
|
RefPtr<Element> newListItemElement = ReplaceContainerWithTransaction(
|
|
MOZ_KnownLive(*curNode->AsElement()), aListItemElementTagName);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(!newListItemElement)) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
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(*curNode, aListItemElementTagName);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(!newListItemElement)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
// If current node is not a block element, new list item should have
|
|
// following inline nodes too.
|
|
if (HTMLEditor::NodeIsInlineStatic(curNode)) {
|
|
prevListItem = newListItemElement;
|
|
} else {
|
|
prevListItem = nullptr;
|
|
}
|
|
nsresult rv = MoveNodeToEndWithTransaction(*newListItemElement, *curList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
// XXX Why don't we set `type` attribute here??
|
|
}
|
|
|
|
return EditActionHandled();
|
|
}
|
|
|
|
nsresult HTMLEditor::RemoveListAtSelectionAsSubAction() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
NS_WARNING_ASSERTION(result.Succeeded(),
|
|
"CanHandleHTMLEditSubAction() failed");
|
|
if (result.Failed() || result.Canceled()) {
|
|
return result.Rv();
|
|
}
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this);
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eRemoveList, nsIEditor::eNext);
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
|
|
AutoTArray<OwningNonNull<nsINode>, 64> arrayOfNodes;
|
|
{
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
nsresult rv =
|
|
SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges(
|
|
arrayOfNodes, EditSubAction::eCreateOrChangeList,
|
|
CollectNonEditableNodes::No);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// Remove all non-editable nodes. Leave them be.
|
|
for (int32_t i = arrayOfNodes.Length() - 1; i >= 0; i--) {
|
|
OwningNonNull<nsINode> testNode = arrayOfNodes[i];
|
|
if (!IsEditable(testNode)) {
|
|
arrayOfNodes.RemoveElementAt(i);
|
|
}
|
|
}
|
|
|
|
// Only act on lists or list items in the array
|
|
for (auto& curNode : arrayOfNodes) {
|
|
// here's where we actually figure out what to do
|
|
if (HTMLEditUtils::IsListItem(curNode)) {
|
|
// unlist this listitem
|
|
nsresult rv = LiftUpListItemElement(MOZ_KnownLive(*curNode->AsElement()),
|
|
LiftUpFromAllParentListElements::Yes);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
if (HTMLEditUtils::IsList(curNode)) {
|
|
// node is a list, move list items out
|
|
nsresult rv =
|
|
DestroyListStructureRecursively(MOZ_KnownLive(*curNode->AsElement()));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::FormatBlockContainerWithTransaction(nsAtom& blockType) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
|
|
AutoTArray<OwningNonNull<nsINode>, 64> arrayOfNodes;
|
|
nsresult rv = SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges(
|
|
arrayOfNodes, EditSubAction::eCreateOrRemoveBlock,
|
|
CollectNonEditableNodes::Yes);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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(arrayOfNodes)) {
|
|
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) {
|
|
// We are removing blocks (going to "body text")
|
|
RefPtr<Element> curBlock = GetBlock(*pointToInsertBlock.GetContainer());
|
|
if (NS_WARN_IF(!curBlock)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (!HTMLEditUtils::IsFormatNode(curBlock)) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
// Do the splits!
|
|
SplitNodeResult splitNodeResult = SplitNodeDeepWithTransaction(
|
|
*curBlock, pointToInsertBlock,
|
|
SplitAtEdges::eDoNotCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(splitNodeResult.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 (NS_WARN_IF(!brContent)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// Put selection at the split point
|
|
EditorRawDOMPoint atBrNode(brContent);
|
|
// Don't restore the selection
|
|
restoreSelectionLater.Abort();
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(atBrNode, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// 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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
// We don't need to act on this node any more
|
|
arrayOfNodes.RemoveElement(brNode);
|
|
}
|
|
// Make sure we can put a block here.
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(blockType,
|
|
pointToInsertBlock);
|
|
if (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
RefPtr<Element> block =
|
|
CreateNodeWithTransaction(blockType, splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!block)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// Remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = block;
|
|
// Delete anything that was in the list of nodes
|
|
while (!arrayOfNodes.IsEmpty()) {
|
|
OwningNonNull<nsINode> curNode = arrayOfNodes[0];
|
|
rv = DeleteNodeWithTransaction(*curNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
arrayOfNodes.RemoveElementAt(0);
|
|
}
|
|
// Don't restore the selection
|
|
restoreSelectionLater.Abort();
|
|
// Put selection in new block
|
|
rv = SelectionRefPtr()->Collapse(block, 0);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"Failed to collapse `Selection` into the new block");
|
|
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) {
|
|
rv = MoveNodesIntoNewBlockquoteElement(arrayOfNodes);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"MoveNodesIntoNewBlockquoteElement() failed");
|
|
return rv;
|
|
}
|
|
if (&blockType == nsGkAtoms::normal || &blockType == nsGkAtoms::_empty) {
|
|
rv = RemoveBlockContainerElements(arrayOfNodes);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"RemoveBlockContainerElements() failed");
|
|
return rv;
|
|
}
|
|
rv = CreateOrChangeBlockContainerElement(arrayOfNodes, blockType);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"CreateOrChangeBlockContainerElement() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::MaybeInsertPaddingBRElementForEmptyLastLineAtSelection() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
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),
|
|
"InsertPaddingBRElementForEmptyLastLineIfNeeded() failed");
|
|
return rv;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::IndentAsSubAction() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this);
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eIndent, nsIEditor::eNext);
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (NS_WARN_IF(result.Failed()) || result.Canceled()) {
|
|
return result;
|
|
}
|
|
|
|
result |= HandleIndentAtSelection();
|
|
if (NS_WARN_IF(result.Failed()) || result.Canceled()) {
|
|
return result;
|
|
}
|
|
|
|
nsresult rv = MaybeInsertPaddingBRElementForEmptyLastLineAtSelection();
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"MaybeInsertPaddingBRElementForEmptyLastLineAtSelection() failed");
|
|
return result.SetResult(rv);
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleIndentAtSelection() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
// FYI: Ignore cancel result of WillInsert().
|
|
nsresult rv = WillInsert();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "WillInsert() failed, but ignored");
|
|
|
|
if (IsCSSEnabled()) {
|
|
nsresult rv = HandleCSSIndentAtSelection();
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HandleCSSIndentAtSelection() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
rv = HandleHTMLIndentAtSelection();
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "HandleHTMLIndent() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
nsresult HTMLEditor::HandleCSSIndentAtSelection() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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),
|
|
"HandleCSSIndentAtSelectionInternal() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::HandleCSSIndentAtSelectionInternal() {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
AutoTArray<OwningNonNull<nsINode>, 64> arrayOfNodes;
|
|
|
|
// 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;
|
|
}
|
|
Element* block = GetBlock(*atCaret.GetContainer());
|
|
if (block && HTMLEditUtils::IsListItem(block)) {
|
|
arrayOfNodes.AppendElement(*block);
|
|
}
|
|
}
|
|
|
|
if (arrayOfNodes.IsEmpty()) {
|
|
nsresult rv =
|
|
SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges(
|
|
arrayOfNodes, EditSubAction::eIndent, CollectNonEditableNodes::Yes);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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(arrayOfNodes)) {
|
|
// get selection location
|
|
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 (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
RefPtr<Element> theBlock = CreateNodeWithTransaction(
|
|
*nsGkAtoms::div, splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!theBlock)) {
|
|
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),
|
|
"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 (!arrayOfNodes.IsEmpty()) {
|
|
OwningNonNull<nsINode> curNode = arrayOfNodes[0];
|
|
rv = DeleteNodeWithTransaction(*curNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
arrayOfNodes.RemoveElementAt(0);
|
|
}
|
|
// put selection in new block
|
|
EditorRawDOMPoint atStartOfTheBlock(theBlock, 0);
|
|
// Don't restore the selection
|
|
restoreSelectionLater.Abort();
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(atStartOfTheBlock, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// Ok, now go through all the nodes and put them in a blockquote,
|
|
// or whatever is appropriate.
|
|
RefPtr<Element> curList, curQuote;
|
|
for (OwningNonNull<nsINode>& curNode : arrayOfNodes) {
|
|
// Here's where we actually figure out what to do.
|
|
EditorDOMPoint atCurNode(curNode);
|
|
if (NS_WARN_IF(!atCurNode.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 (!IsEditable(curNode)) {
|
|
continue;
|
|
}
|
|
|
|
// some logic for putting list items into nested lists...
|
|
if (HTMLEditUtils::IsList(atCurNode.GetContainer())) {
|
|
// Check for whether we should join a list that follows curNode.
|
|
// We do this if the next element is a list, and the list is of the
|
|
// same type (li/ol) as curNode was a part it.
|
|
// XXX We also check namespace of the element here, but we don't do
|
|
// that in other places.
|
|
if (nsIContent* nextEditableSibling = GetNextHTMLSibling(curNode)) {
|
|
if (HTMLEditUtils::IsList(nextEditableSibling) &&
|
|
atCurNode.GetContainer()->NodeInfo()->NameAtom() ==
|
|
nextEditableSibling->NodeInfo()->NameAtom() &&
|
|
atCurNode.GetContainer()->NodeInfo()->NamespaceID() ==
|
|
nextEditableSibling->NodeInfo()->NamespaceID()) {
|
|
nsresult rv =
|
|
MoveNodeWithTransaction(MOZ_KnownLive(*curNode->AsContent()),
|
|
EditorDOMPoint(nextEditableSibling, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// Check for whether we should join a list that preceeds curNode.
|
|
// We do this if the previous element is a list, and the list is of
|
|
// the same type (li/ol) as curNode was a part of.
|
|
if (nsCOMPtr<nsIContent> previousEditableSibling =
|
|
GetPriorHTMLSibling(curNode)) {
|
|
if (HTMLEditUtils::IsList(previousEditableSibling) &&
|
|
atCurNode.GetContainer()->NodeInfo()->NameAtom() ==
|
|
previousEditableSibling->NodeInfo()->NameAtom() &&
|
|
atCurNode.GetContainer()->NodeInfo()->NamespaceID() ==
|
|
previousEditableSibling->NodeInfo()->NamespaceID()) {
|
|
nsresult rv = MoveNodeToEndWithTransaction(
|
|
MOZ_KnownLive(*curNode->AsContent()), *previousEditableSibling);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// check to see if curList is still appropriate. Which it is if
|
|
// curNode is still right after it in the same list.
|
|
nsIContent* previousEditableSibling =
|
|
curList ? GetPriorHTMLSibling(curNode) : nullptr;
|
|
if (!curList ||
|
|
(previousEditableSibling && previousEditableSibling != curList)) {
|
|
nsAtom* containerName =
|
|
atCurNode.GetContainer()->NodeInfo()->NameAtom();
|
|
// Create a new nested list of correct type.
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(
|
|
MOZ_KnownLive(*containerName), atCurNode);
|
|
if (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
curList = CreateNodeWithTransaction(MOZ_KnownLive(*containerName),
|
|
splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!curList)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// curList is now the correct thing to put curNode in
|
|
// remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = curList;
|
|
}
|
|
// tuck the node into the end of the active list
|
|
nsresult rv = MoveNodeToEndWithTransaction(
|
|
MOZ_KnownLive(*curNode->AsContent()), *curList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Not a list item.
|
|
|
|
if (HTMLEditor::NodeIsBlockStatic(*curNode)) {
|
|
nsresult rv = ChangeMarginStart(MOZ_KnownLive(*curNode->AsElement()),
|
|
ChangeMargin::Increase);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"ChangeMarginStart() failed, but ignored");
|
|
curQuote = nullptr;
|
|
continue;
|
|
}
|
|
|
|
if (!curQuote) {
|
|
// First, check that our element can contain a div.
|
|
if (!CanContainTag(*atCurNode.GetContainer(), *nsGkAtoms::div)) {
|
|
return NS_OK; // cancelled
|
|
}
|
|
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(*nsGkAtoms::div,
|
|
atCurNode);
|
|
if (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
curQuote = CreateNodeWithTransaction(*nsGkAtoms::div,
|
|
splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!curQuote)) {
|
|
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),
|
|
"ChangeMarginStart() failed, but ignored");
|
|
// 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
|
|
nsresult rv = MoveNodeToEndWithTransaction(
|
|
MOZ_KnownLive(*curNode->AsContent()), *curQuote);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::HandleHTMLIndentAtSelection() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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),
|
|
"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 contruct a list of nodes to act on.
|
|
AutoTArray<OwningNonNull<nsINode>, 64> arrayOfNodes;
|
|
nsresult rv = SplitInlinesAndCollectEditTargetNodes(
|
|
arrayOfRanges, arrayOfNodes, EditSubAction::eIndent,
|
|
CollectNonEditableNodes::Yes);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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(arrayOfNodes)) {
|
|
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 (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
RefPtr<Element> theBlock = CreateNodeWithTransaction(
|
|
*nsGkAtoms::blockquote, splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!theBlock)) {
|
|
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 (!arrayOfNodes.IsEmpty()) {
|
|
OwningNonNull<nsINode> curNode = arrayOfNodes[0];
|
|
rv = DeleteNodeWithTransaction(*curNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
arrayOfNodes.RemoveElementAt(0);
|
|
}
|
|
EditorRawDOMPoint atStartOfTheBlock(theBlock, 0);
|
|
// Don't restore the selection
|
|
restoreSelectionLater.Abort();
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(atStartOfTheBlock, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// 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<nsINode>& curNode : arrayOfNodes) {
|
|
// Here's where we actually figure out what to do.
|
|
EditorDOMPoint atCurNode(curNode);
|
|
if (NS_WARN_IF(!atCurNode.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 (!IsEditable(curNode)) {
|
|
continue;
|
|
}
|
|
|
|
// some logic for putting list items into nested lists...
|
|
if (HTMLEditUtils::IsList(atCurNode.GetContainer())) {
|
|
// Check for whether we should join a list that follows curNode.
|
|
// We do this if the next element is a list, and the list is of the
|
|
// same type (li/ol) as curNode was a part it.
|
|
if (nsIContent* nextEditableSibling = GetNextHTMLSibling(curNode)) {
|
|
if (HTMLEditUtils::IsList(nextEditableSibling) &&
|
|
atCurNode.GetContainer()->NodeInfo()->NameAtom() ==
|
|
nextEditableSibling->NodeInfo()->NameAtom() &&
|
|
atCurNode.GetContainer()->NodeInfo()->NamespaceID() ==
|
|
nextEditableSibling->NodeInfo()->NamespaceID()) {
|
|
rv = MoveNodeWithTransaction(MOZ_KnownLive(*curNode->AsContent()),
|
|
EditorDOMPoint(nextEditableSibling, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// Check for whether we should join a list that preceeds curNode.
|
|
// We do this if the previous element is a list, and the list is of
|
|
// the same type (li/ol) as curNode was a part of.
|
|
if (nsCOMPtr<nsIContent> previousEditableSibling =
|
|
GetPriorHTMLSibling(curNode)) {
|
|
if (HTMLEditUtils::IsList(previousEditableSibling) &&
|
|
atCurNode.GetContainer()->NodeInfo()->NameAtom() ==
|
|
previousEditableSibling->NodeInfo()->NameAtom() &&
|
|
atCurNode.GetContainer()->NodeInfo()->NamespaceID() ==
|
|
previousEditableSibling->NodeInfo()->NamespaceID()) {
|
|
rv = MoveNodeToEndWithTransaction(
|
|
MOZ_KnownLive(*curNode->AsContent()), *previousEditableSibling);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// check to see if curList is still appropriate. Which it is if
|
|
// curNode is still right after it in the same list.
|
|
nsIContent* previousEditableSibling =
|
|
curList ? GetPriorHTMLSibling(curNode) : nullptr;
|
|
if (!curList ||
|
|
(previousEditableSibling && previousEditableSibling != curList)) {
|
|
nsAtom* containerName =
|
|
atCurNode.GetContainer()->NodeInfo()->NameAtom();
|
|
// Create a new nested list of correct type.
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(
|
|
MOZ_KnownLive(*containerName), atCurNode);
|
|
if (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
curList = CreateNodeWithTransaction(MOZ_KnownLive(*containerName),
|
|
splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!curList)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// curList is now the correct thing to put curNode in
|
|
// remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = curList;
|
|
}
|
|
// tuck the node into the end of the active list
|
|
rv = MoveNodeToEndWithTransaction(MOZ_KnownLive(*curNode->AsContent()),
|
|
*curList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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 =
|
|
curNode->IsContent()
|
|
? GetNearestAncestorListItemElement(*curNode->AsContent())
|
|
: nullptr) {
|
|
if (indentedLI == listItem) {
|
|
// already indented this list item
|
|
continue;
|
|
}
|
|
// check to see if curList is still appropriate. Which it is if
|
|
// curNode 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 (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
curList = CreateNodeWithTransaction(MOZ_KnownLive(*containerName),
|
|
splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!curList)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
rv = MoveNodeToEndWithTransaction(*listItem, *curList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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, *curNode)) {
|
|
curQuote = nullptr;
|
|
}
|
|
|
|
if (!curQuote) {
|
|
// First, check that our element can contain a blockquote.
|
|
if (!CanContainTag(*atCurNode.GetContainer(), *nsGkAtoms::blockquote)) {
|
|
return NS_OK; // cancelled
|
|
}
|
|
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(*nsGkAtoms::blockquote,
|
|
atCurNode);
|
|
if (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
curQuote = CreateNodeWithTransaction(*nsGkAtoms::blockquote,
|
|
splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!curQuote)) {
|
|
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
|
|
rv = MoveNodeToEndWithTransaction(MOZ_KnownLive(*curNode->AsContent()),
|
|
*curQuote);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
// forget curList, if any
|
|
curList = nullptr;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::OutdentAsSubAction() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this);
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eOutdent, nsIEditor::eNext);
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (NS_WARN_IF(result.Failed()) || result.Canceled()) {
|
|
return result;
|
|
}
|
|
|
|
result |= HandleOutdentAtSelection();
|
|
if (NS_WARN_IF(result.Failed()) || result.Canceled()) {
|
|
return result;
|
|
}
|
|
|
|
nsresult rv = MaybeInsertPaddingBRElementForEmptyLastLineAtSelection();
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"MaybeInsertPaddingBRElementForEmptyLastLineAtSelection() failed");
|
|
return result.SetResult(rv);
|
|
}
|
|
|
|
EditActionResult HTMLEditor::HandleOutdentAtSelection() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
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 (NS_WARN_IF(outdentResult.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()) {
|
|
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(outdentResult.GetLeftContent());
|
|
afterRememberedLeftBQ.AdvanceOffset();
|
|
IgnoredErrorResult errorIgnored;
|
|
SelectionRefPtr()->Collapse(afterRememberedLeftBQ, errorIgnored);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(!errorIgnored.Failed(),
|
|
"Selection::Colapsed() failed, but ignored");
|
|
}
|
|
}
|
|
// And pull selection before beginning of right element of last split
|
|
// indented element.
|
|
if (outdentResult.GetRightContent()) {
|
|
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());
|
|
IgnoredErrorResult errorIgnored;
|
|
SelectionRefPtr()->Collapse(atRememberedRightBQ, errorIgnored);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(!errorIgnored.Failed(),
|
|
"Selection::Colapsed() 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<nsINode>, 64> arrayOfNodes;
|
|
nsresult rv = SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges(
|
|
arrayOfNodes, EditSubAction::eOutdent, CollectNonEditableNodes::Yes);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
|
|
nsCOMPtr<nsIContent> leftContentOfLastOutdented;
|
|
nsCOMPtr<nsIContent> middleContentOfLastOutdented;
|
|
nsCOMPtr<nsIContent> rightContentOfLastOutdented;
|
|
RefPtr<Element> indentedParentElement;
|
|
nsCOMPtr<nsIContent> firstContentToBeOutdented, lastContentToBeOutdented;
|
|
BlockIndentedWith indentedParentIndentedWith = BlockIndentedWith::HTML;
|
|
for (auto& curNode : arrayOfNodes) {
|
|
if (!curNode->IsContent()) {
|
|
continue;
|
|
}
|
|
OwningNonNull<nsIContent> curContent = *curNode->AsContent();
|
|
// Here's where we actually figure out what to do
|
|
EditorDOMPoint atCurContent(curContent);
|
|
if (!atCurContent.IsSet()) {
|
|
continue;
|
|
}
|
|
|
|
// If it's a `<blockquote>`, remove it to outdent its children.
|
|
if (curContent->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 == curContent);
|
|
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;
|
|
}
|
|
rv = RemoveBlockContainerWithTransaction(
|
|
MOZ_KnownLive(*curContent->AsElement()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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 && HTMLEditor::NodeIsBlockStatic(curContent)) {
|
|
nsStaticAtom& marginProperty = MarginPropertyAtomForIndent(curContent);
|
|
nsAutoString value;
|
|
CSSEditUtils::GetSpecifiedProperty(curContent, marginProperty, value);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
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(*curContent->AsElement()),
|
|
ChangeMargin::Decrease);
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"ChangeMarginStart() failed, but ignored");
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// If it's a list item, we should treat as that it "indents" its children.
|
|
if (HTMLEditUtils::IsListItem(curContent)) {
|
|
// 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 `curContent` could become different element since
|
|
// `OutdentPartOfBlock()` may run mutation event listeners.
|
|
rv = LiftUpListItemElement(MOZ_KnownLive(*curContent->AsElement()),
|
|
LiftUpFromAllParentListElements::No);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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(*curContent, *indentedParentElement)) {
|
|
// Extend the range to be outdented at removing the
|
|
// indentedParentElement.
|
|
lastContentToBeOutdented = curContent;
|
|
continue;
|
|
}
|
|
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;
|
|
// curBlockIndentedWith = HTMLEditor::BlockIndentedWith::HTML;
|
|
|
|
// Then, we need to look for next indentedParentElement.
|
|
}
|
|
|
|
indentedParentIndentedWith = BlockIndentedWith::HTML;
|
|
RefPtr<Element> editingHost = GetActiveEditingHost();
|
|
for (nsCOMPtr<nsINode> parentNode = curContent->GetParentNode();
|
|
parentNode && !parentNode->IsHTMLElement(nsGkAtoms::body) &&
|
|
parentNode != editingHost &&
|
|
(parentNode->IsHTMLElement(nsGkAtoms::table) ||
|
|
!HTMLEditUtils::IsTableElement(parentNode));
|
|
parentNode = parentNode->GetParentNode()) {
|
|
// If we reach a `<blockquote>` ancestor, it should be split at next
|
|
// time at least for outdenting current node.
|
|
if (parentNode->IsHTMLElement(nsGkAtoms::blockquote)) {
|
|
indentedParentElement = parentNode->AsElement();
|
|
firstContentToBeOutdented = curContent;
|
|
lastContentToBeOutdented = curContent;
|
|
break;
|
|
}
|
|
|
|
if (!useCSS) {
|
|
continue;
|
|
}
|
|
|
|
nsStaticAtom& marginProperty = MarginPropertyAtomForIndent(curContent);
|
|
nsAutoString value;
|
|
CSSEditUtils::GetSpecifiedProperty(*parentNode, marginProperty, value);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
// 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::IsList(atCurContent.GetContainer()) &&
|
|
HTMLEditUtils::IsList(curContent))) {
|
|
indentedParentElement = parentNode->AsElement();
|
|
firstContentToBeOutdented = curContent;
|
|
lastContentToBeOutdented = curContent;
|
|
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::IsList(atCurContent.GetContainer())) {
|
|
// Move node out of list
|
|
if (HTMLEditUtils::IsList(curContent)) {
|
|
// Just unwrap this sublist
|
|
rv = RemoveBlockContainerWithTransaction(
|
|
MOZ_KnownLive(*curContent->AsElement()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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::IsList(curContent)) {
|
|
// 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 = curContent->GetLastChild();
|
|
lastChildContent; lastChildContent = curContent->GetLastChild()) {
|
|
if (HTMLEditUtils::IsListItem(lastChildContent)) {
|
|
rv = LiftUpListItemElement(
|
|
MOZ_KnownLive(*lastChildContent->AsElement()),
|
|
LiftUpFromAllParentListElements::No);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsList(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(atCurContent);
|
|
DebugOnly<bool> advanced = afterCurrentList.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(
|
|
advanced, "Failed to set it to after current list element");
|
|
rv = MoveNodeWithTransaction(*lastChildContent, afterCurrentList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Delete any non-list items for now
|
|
// XXX Chrome moves it from the list element. We should follow it.
|
|
rv = DeleteNodeWithTransaction(*lastChildContent);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
}
|
|
// Delete the now-empty list
|
|
rv = RemoveBlockContainerWithTransaction(
|
|
MOZ_KnownLive(*curContent->AsElement()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (useCSS) {
|
|
RefPtr<Element> element;
|
|
if (curContent->IsCharacterData()) {
|
|
// We want to outdent the parent of text nodes etc.
|
|
element = curContent->GetParentElement();
|
|
} else if (curContent->IsElement()) {
|
|
element = curContent->AsElement();
|
|
}
|
|
if (element) {
|
|
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),
|
|
"ChangeMarginStart() 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);
|
|
if (NS_WARN_IF(outdentResult.Failed())) {
|
|
return outdentResult;
|
|
}
|
|
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(),
|
|
"Failed to split the range off from the block element");
|
|
nsresult rv = RemoveBlockContainerWithTransaction(aBlockElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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(),
|
|
"Failed to split aBlockElement at start");
|
|
|
|
// 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(),
|
|
"Failed to split aBlockElement at after end");
|
|
|
|
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 (NS_WARN_IF(!splitResult.GetMiddleContentAsElement())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
if (aBlockIndentedWith == BlockIndentedWith::HTML) {
|
|
nsresult rv = RemoveBlockContainerWithTransaction(
|
|
MOZ_KnownLive(*splitResult.GetMiddleContentAsElement()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return SplitRangeOffFromNodeResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return SplitRangeOffFromNodeResult(rv);
|
|
}
|
|
return SplitRangeOffFromNodeResult(splitResult.GetLeftContent(), nullptr,
|
|
splitResult.GetRightContent());
|
|
}
|
|
|
|
if (splitResult.GetMiddleContentAsElement()) {
|
|
nsresult rv = ChangeMarginStart(
|
|
MOZ_KnownLive(*splitResult.GetMiddleContentAsElement()),
|
|
ChangeMargin::Decrease);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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 (NS_WARN_IF(!newListItemElement)) {
|
|
return CreateElementResult(NS_ERROR_FAILURE);
|
|
}
|
|
childContent = newListItemElement;
|
|
continue;
|
|
}
|
|
if (HTMLEditUtils::IsList(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 (NS_WARN_IF(convertListTypeResult.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 != nullptr, "Failed to create list element");
|
|
return CreateElementResult(listElement.forget());
|
|
}
|
|
|
|
nsresult HTMLEditor::CreateStyleForInsertText(AbstractRange& aAbstractRange) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aAbstractRange.IsPositioned());
|
|
MOZ_ASSERT(mTypeInState);
|
|
|
|
nsCOMPtr<nsINode> node = aAbstractRange.GetStartContainer();
|
|
int32_t offset = aAbstractRange.StartOffset();
|
|
|
|
RefPtr<Element> documentRootElement = GetDocument()->GetRootElement();
|
|
if (NS_WARN_IF(!documentRootElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// process clearing any styles first
|
|
UniquePtr<PropItem> item = mTypeInState->TakeClearProperty();
|
|
|
|
bool weDidSomething = false;
|
|
{
|
|
// Transactions may set selection, but we will set selection if necessary.
|
|
AutoTransactionsConserveSelection dontChangeMySelection(*this);
|
|
|
|
while (item && node != documentRootElement) {
|
|
// XXX If we redesign ClearStyle(), we can use EditorDOMPoint in this
|
|
// method.
|
|
nsresult rv =
|
|
ClearStyle(address_of(node), &offset, MOZ_KnownLive(item->tag),
|
|
MOZ_KnownLive(item->attr));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
item = mTypeInState->TakeClearProperty();
|
|
weDidSomething = 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 (RefPtr<Text> text = node->GetAsText()) {
|
|
// if we are in a text node, split it
|
|
SplitNodeResult splitTextNodeResult = SplitNodeDeepWithTransaction(
|
|
*text, EditorDOMPoint(text, offset),
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(splitTextNodeResult.Failed())) {
|
|
return splitTextNodeResult.Rv();
|
|
}
|
|
EditorRawDOMPoint splitPoint(splitTextNodeResult.SplitPoint());
|
|
node = splitPoint.GetContainer();
|
|
offset = splitPoint.Offset();
|
|
}
|
|
if (!IsContainer(node)) {
|
|
return NS_OK;
|
|
}
|
|
RefPtr<Text> newNode = CreateTextNode(EmptyString());
|
|
if (NS_WARN_IF(!newNode)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsresult rv =
|
|
InsertNodeWithTransaction(*newNode, EditorDOMPoint(node, offset));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
node = newNode;
|
|
offset = 0;
|
|
weDidSomething = 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++) {
|
|
rv = RelativeFontChangeOnTextNode(dir, *newNode, 0, -1);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
|
|
while (item) {
|
|
rv = SetInlinePropertyOnNode(MOZ_KnownLive(*node->AsContent()),
|
|
MOZ_KnownLive(*item->tag),
|
|
MOZ_KnownLive(item->attr), item->value);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
item = mTypeInState->TakeSetProperty();
|
|
}
|
|
}
|
|
|
|
if (!weDidSomething) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult rv = SelectionRefPtr()->Collapse(node, offset);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "Selection::Collapse() failed");
|
|
return rv;
|
|
}
|
|
|
|
bool HTMLEditor::IsEmptyBlockElement(Element& aElement,
|
|
IgnoreSingleBR aIgnoreSingleBR) const {
|
|
if (!HTMLEditor::NodeIsBlockStatic(aElement)) {
|
|
return false;
|
|
}
|
|
bool isEmpty = true;
|
|
nsresult rv =
|
|
IsEmptyNode(&aElement, &isEmpty, aIgnoreSingleBR == IgnoreSingleBR::Yes);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "IsEmptyNode() failed");
|
|
return NS_SUCCEEDED(rv) && isEmpty;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::AlignAsSubAction(const nsAString& aAlignType) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this);
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eSetOrClearAlignment, nsIEditor::eNext);
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (NS_WARN_IF(result.Failed()) || result.Canceled()) {
|
|
return result;
|
|
}
|
|
|
|
// FYI: Ignore cancel result of WillInsert().
|
|
nsresult rv = WillInsert();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "WillInsert() failed, but ignored");
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
rv = MaybeInsertPaddingBRElementForEmptyLastLineAtSelection();
|
|
NS_WARNING_ASSERTION(
|
|
NS_SUCCEEDED(rv),
|
|
"MaybeInsertPaddingBRElementForEmptyLastLineAtSelection() failed");
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
nsresult HTMLEditor::AlignContentsAtSelection(const nsAString& aAlignType) {
|
|
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<nsINode>, 64> nodeArray;
|
|
nsresult rv = SplitInlinesAndCollectEditTargetNodesInExtendedSelectionRanges(
|
|
nodeArray, EditSubAction::eSetOrClearAlignment,
|
|
CollectNonEditableNodes::Yes);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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 = nodeArray.IsEmpty();
|
|
if (nodeArray.Length() == 1) {
|
|
OwningNonNull<nsINode> node = nodeArray[0];
|
|
|
|
if (HTMLEditUtils::SupportsAlignAttr(*node)) {
|
|
// 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(*node->AsElement()), aAlignType,
|
|
EditTarget::OnlyDescendantsExceptTable);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "SetBlockElementAlign() failed");
|
|
return rv;
|
|
}
|
|
|
|
if (TextEditUtils::IsBreak(node)) {
|
|
// 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 nodeArray, as the
|
|
// paragraph above points out. Do we rely on the selection start
|
|
// node because of the fact that nodeArray can be empty? We should
|
|
// probably revisit this issue. - kin
|
|
|
|
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::IsTableElement(parent) ||
|
|
HTMLEditUtils::IsTableCellOrCaption(*parent);
|
|
}
|
|
}
|
|
|
|
if (createEmptyDivElement) {
|
|
EditActionResult result =
|
|
AlignContentsAtSelectionWithEmptyDivElement(aAlignType);
|
|
NS_WARNING_ASSERTION(
|
|
result.Succeeded(),
|
|
"AlignContentsAtSelectionWithEmptyDivElement() failed");
|
|
if (result.Handled()) {
|
|
restoreSelectionLater.Abort();
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
rv = AlignNodesAndDescendants(nodeArray, aAlignType);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "AlignNodesAndDescendants() failed");
|
|
return rv;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::AlignContentsAtSelectionWithEmptyDivElement(
|
|
const nsAString& aAlignType) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
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 (NS_WARN_IF(splitNodeResult.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 (TextEditUtils::IsBreak(maybeBRContent) && 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 (!HTMLEditor::NodeIsBlockStatic(*nextEditableSibling)) {
|
|
AutoEditorDOMPointChildInvalidator lockOffset(pointToInsertDiv);
|
|
nsresult rv = DeleteNodeWithTransaction(*maybeBRContent);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
RefPtr<Element> divElement =
|
|
CreateNodeWithTransaction(*nsGkAtoms::div, pointToInsertDiv);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(!divElement)) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
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 (NS_WARN_IF(createPaddingBRResult.Failed())) {
|
|
return EditActionResult(createPaddingBRResult.Rv());
|
|
}
|
|
EditorRawDOMPoint atStartOfDiv(divElement, 0);
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(atStartOfDiv, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(!error.Failed(), "Selection::Collapse() failed");
|
|
return EditActionHandled(error.StealNSResult());
|
|
}
|
|
|
|
nsresult HTMLEditor::AlignNodesAndDescendants(
|
|
nsTArray<OwningNonNull<nsINode>>& aArrayOfNodes,
|
|
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(aArrayOfNodes, 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<nsINode>& curNode : aArrayOfNodes) {
|
|
++indexOfTransitionList;
|
|
|
|
// Ignore all non-editable nodes. Leave them be.
|
|
if (!IsEditable(curNode)) {
|
|
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(*curNode)) {
|
|
nsresult rv =
|
|
SetBlockElementAlign(MOZ_KnownLive(*curNode->AsElement()), aAlignType,
|
|
EditTarget::NodeAndDescendantsExceptTable);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
// Clear out createdDivElement so that we don't put nodes after this one
|
|
// into it
|
|
createdDivElement = nullptr;
|
|
continue;
|
|
}
|
|
|
|
EditorDOMPoint atCurNode(curNode);
|
|
if (NS_WARN_IF(!atCurNode.IsSet())) {
|
|
continue;
|
|
}
|
|
|
|
// Skip insignificant formatting text nodes to prevent unnecessary
|
|
// structure splitting!
|
|
bool isEmptyTextNode = false;
|
|
if (curNode->IsText() &&
|
|
((HTMLEditUtils::IsTableElement(atCurNode.GetContainer()) &&
|
|
!HTMLEditUtils::IsTableCellOrCaption(*atCurNode.GetContainer())) ||
|
|
HTMLEditUtils::IsList(atCurNode.GetContainer()) ||
|
|
(NS_SUCCEEDED(IsEmptyNode(curNode, &isEmptyTextNode)) &&
|
|
isEmptyTextNode))) {
|
|
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(curNode) || HTMLEditUtils::IsList(curNode)) {
|
|
Element* listOrListItemElement = curNode->AsElement();
|
|
AutoEditorDOMPointOffsetInvalidator lockChild(atCurNode);
|
|
nsresult rv = RemoveAlignFromDescendants(
|
|
MOZ_KnownLive(*listOrListItemElement), aAlignType,
|
|
EditTarget::OnlyDescendantsExceptTable);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
if (useCSS) {
|
|
mCSSEditUtils->SetCSSEquivalentToHTMLStyle(
|
|
MOZ_KnownLive(listOrListItemElement), nullptr, nsGkAtoms::align,
|
|
&aAlignType, false);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
createdDivElement = nullptr;
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsList(atCurNode.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?
|
|
nsresult rv = AlignContentsInAllTableCellsAndListItems(
|
|
MOZ_KnownLive(*listOrListItemElement), aAlignType);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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 (!CanContainTag(*atCurNode.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,
|
|
atCurNode);
|
|
if (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
createdDivElement = CreateNodeWithTransaction(
|
|
*nsGkAtoms::div, splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!createdDivElement)) {
|
|
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),
|
|
"SetBlockElementAlign() failed, but ignored");
|
|
}
|
|
|
|
// Tuck the node into the end of the active div
|
|
nsresult rv = MoveNodeToEndWithTransaction(
|
|
MOZ_KnownLive(*curNode->AsContent()), *createdDivElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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<nsINode>, 64> nodeArray;
|
|
TableCellAndListItemFunctor functor;
|
|
DOMIterator iter(aElement);
|
|
iter.AppendList(functor, nodeArray);
|
|
|
|
// Now that we have the list, align their contents as requested
|
|
for (auto& node : nodeArray) {
|
|
MOZ_ASSERT(node->IsElement());
|
|
nsresult rv = AlignBlockContentsWithDivElement(
|
|
MOZ_KnownLive(*node->AsElement()), aAlignType);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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), "SetAttributeOrEquivalent() 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 (NS_WARN_IF(!divElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsresult rv =
|
|
SetAttributeOrEquivalent(divElement, nsGkAtoms::align, aAlignType, false);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
lastEditableContent = GetLastEditableChild(aBlockElement);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::MaybeDeleteTopMostEmptyAncestor(
|
|
nsIContent& aStartContent, Element& aEditingHostElement,
|
|
nsIEditor::EDirection aDirectionAndAmount) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
// If the editing host is an inline element, bail out early.
|
|
if (HTMLEditor::NodeIsInlineStatic(aEditingHostElement)) {
|
|
return EditActionIgnored();
|
|
}
|
|
|
|
// If we are inside an empty block, delete it. Note: do NOT delete table
|
|
// elements this way.
|
|
RefPtr<Element> blockElement = GetBlock(aStartContent);
|
|
RefPtr<Element> topMostEmptyBlockElement;
|
|
if (blockElement && blockElement != &aEditingHostElement) {
|
|
// Efficiency hack, avoiding IsEmptyNode() call when in body
|
|
bool isEmptyNode = false;
|
|
nsresult rv = IsEmptyNode(blockElement, &isEmptyNode, true, false);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
while (blockElement && isEmptyNode &&
|
|
!HTMLEditUtils::IsTableElement(blockElement) &&
|
|
blockElement != &aEditingHostElement) {
|
|
topMostEmptyBlockElement = blockElement;
|
|
blockElement = GetBlockNodeParent(topMostEmptyBlockElement);
|
|
if (!blockElement) {
|
|
break;
|
|
}
|
|
nsresult rv = IsEmptyNode(blockElement, &isEmptyNode, true, false);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
}
|
|
}
|
|
|
|
// XXX Because of not checking whether found block element is editable
|
|
// in the above loop, empty ediable block element may be overwritten
|
|
// with empty non-editable clock element. Therefore, we fail to
|
|
// remove the found empty nodes.
|
|
if (!topMostEmptyBlockElement || !topMostEmptyBlockElement->IsEditable()) {
|
|
return EditActionIgnored();
|
|
}
|
|
|
|
RefPtr<Element> parentOfEmptyBlockElement =
|
|
topMostEmptyBlockElement->GetParentElement();
|
|
if (NS_WARN_IF(!parentOfEmptyBlockElement)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
if (HTMLEditUtils::IsListItem(topMostEmptyBlockElement)) {
|
|
// If the found empty block is a list item element and its grand parent
|
|
// (i.e., parent of list element) is NOT a list element, insert <br>
|
|
// element before the list element which has the empty list item.
|
|
// This odd list structure may occur if `Document.execCommand("indent")`
|
|
// is performed for list items.
|
|
// XXX Chrome does not remove empty list elements when last content in
|
|
// last list item is deleted. We should follow it since current
|
|
// behavior is annoying when you type new list item with selecting
|
|
// all list items.
|
|
if (IsFirstEditableChild(topMostEmptyBlockElement)) {
|
|
EditorDOMPoint atParentOfEmptyBlock(parentOfEmptyBlockElement);
|
|
if (NS_WARN_IF(!atParentOfEmptyBlock.IsSet())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
// If the grand parent IS a list element, we'll adjust Selection in
|
|
// AfterEdit().
|
|
if (!HTMLEditUtils::IsList(atParentOfEmptyBlock.GetContainer())) {
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(atParentOfEmptyBlock);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(EditorRawDOMPoint(brElement), error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return EditActionResult(error.StealNSResult());
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
switch (aDirectionAndAmount) {
|
|
case nsIEditor::eNext:
|
|
case nsIEditor::eNextWord:
|
|
case nsIEditor::eToEndOfLine: {
|
|
// Collapse Selection to next node of after empty block element
|
|
// if there is. Otherwise, to just after the empty block.
|
|
EditorRawDOMPoint afterEmptyBlock(topMostEmptyBlockElement);
|
|
bool advancedFromEmptyBlock = afterEmptyBlock.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(
|
|
advancedFromEmptyBlock,
|
|
"Failed to set selection to the after the empty block");
|
|
nsCOMPtr<nsIContent> nextContentOfEmptyBlock =
|
|
GetNextNode(afterEmptyBlock);
|
|
if (nextContentOfEmptyBlock) {
|
|
EditorDOMPoint pt = GetGoodCaretPointFor(*nextContentOfEmptyBlock,
|
|
aDirectionAndAmount);
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(pt, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return EditActionResult(error.StealNSResult());
|
|
}
|
|
break;
|
|
}
|
|
if (NS_WARN_IF(!advancedFromEmptyBlock)) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(afterEmptyBlock, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return EditActionResult(error.StealNSResult());
|
|
}
|
|
break;
|
|
}
|
|
case nsIEditor::ePrevious:
|
|
case nsIEditor::ePreviousWord:
|
|
case nsIEditor::eToBeginningOfLine: {
|
|
// Collapse Selection to previous editable node of the empty block
|
|
// if there is. Otherwise, to after the empty block.
|
|
EditorRawDOMPoint atEmptyBlock(topMostEmptyBlockElement);
|
|
nsCOMPtr<nsIContent> previousContentOfEmptyBlock =
|
|
GetPreviousEditableNode(atEmptyBlock);
|
|
if (previousContentOfEmptyBlock) {
|
|
EditorDOMPoint pt = GetGoodCaretPointFor(*previousContentOfEmptyBlock,
|
|
aDirectionAndAmount);
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(pt, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return EditActionResult(error.StealNSResult());
|
|
}
|
|
break;
|
|
}
|
|
EditorRawDOMPoint afterEmptyBlock(topMostEmptyBlockElement);
|
|
if (NS_WARN_IF(!afterEmptyBlock.AdvanceOffset())) {
|
|
return EditActionResult(NS_ERROR_FAILURE);
|
|
}
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(afterEmptyBlock, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return EditActionResult(error.StealNSResult());
|
|
}
|
|
break;
|
|
}
|
|
case nsIEditor::eNone:
|
|
break;
|
|
default:
|
|
MOZ_CRASH("CheckForEmptyBlock doesn't support this action yet");
|
|
}
|
|
}
|
|
nsresult rv = DeleteNodeWithTransaction(*topMostEmptyBlockElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionResult(rv);
|
|
}
|
|
return EditActionHandled();
|
|
}
|
|
|
|
template <typename PT, typename CT>
|
|
Element* HTMLEditor::GetInvisibleBRElementAt(
|
|
const EditorDOMPointBase<PT, CT>& aPoint) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(aPoint.IsSet());
|
|
|
|
if (aPoint.IsStartOfContainer()) {
|
|
return nullptr;
|
|
}
|
|
|
|
WSRunObject wsTester(this, aPoint);
|
|
return WSType::br == wsTester.mStartReason
|
|
? wsTester.mStartReasonNode->AsElement()
|
|
: nullptr;
|
|
}
|
|
|
|
size_t HTMLEditor::CollectChildren(
|
|
nsINode& aNode, nsTArray<OwningNonNull<nsINode>>& aOutArrayOfNodes,
|
|
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::IsList(content) ||
|
|
HTMLEditUtils::IsListItem(content))) ||
|
|
(aCollectTableChildren == CollectTableChildren::Yes &&
|
|
HTMLEditUtils::IsTableElement(content))) {
|
|
numberOfFoundChildren += CollectChildren(
|
|
*content, aOutArrayOfNodes,
|
|
aIndexToInsertChildren + numberOfFoundChildren, aCollectListChildren,
|
|
aCollectTableChildren, aCollectNonEditableNodes);
|
|
} else if (aCollectNonEditableNodes == CollectNonEditableNodes::Yes ||
|
|
IsEditable(content)) {
|
|
aOutArrayOfNodes.InsertElementAt(
|
|
aIndexToInsertChildren + numberOfFoundChildren++, *content);
|
|
}
|
|
}
|
|
return numberOfFoundChildren;
|
|
}
|
|
|
|
already_AddRefed<StaticRange>
|
|
HTMLEditor::GetExtendedRangeToIncludeInvisibleNodes(
|
|
const AbstractRange& aAbstractRange) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(!aAbstractRange.Collapsed());
|
|
MOZ_ASSERT(aAbstractRange.IsPositioned());
|
|
|
|
EditorRawDOMPoint atStart(aAbstractRange.StartRef());
|
|
EditorRawDOMPoint atEnd(aAbstractRange.EndRef());
|
|
|
|
// Find current selection common block parent
|
|
Element* commonAncestorBlock =
|
|
HTMLEditor::GetBlock(*aAbstractRange.GetCommonAncestor());
|
|
if (NS_WARN_IF(!commonAncestorBlock)) {
|
|
return nullptr;
|
|
}
|
|
|
|
// Set up for loops and cache our root element
|
|
Element* editingHost = GetActiveEditingHost();
|
|
if (NS_WARN_IF(!editingHost)) {
|
|
return nullptr;
|
|
}
|
|
|
|
// Find previous visible things before start of selection
|
|
if (atStart.GetContainer() != commonAncestorBlock &&
|
|
atStart.GetContainer() != editingHost) {
|
|
for (;;) {
|
|
WSRunObject wsObj(this, atStart);
|
|
WSType wsType;
|
|
wsObj.PriorVisibleNode(atStart, &wsType);
|
|
if (wsType != WSType::thisBlock) {
|
|
break;
|
|
}
|
|
// We want to keep looking up. But stop if we are crossing table
|
|
// element boundaries, or if we hit the root.
|
|
if (HTMLEditUtils::IsTableElement(wsObj.mStartReasonNode) ||
|
|
wsObj.mStartReasonNode == commonAncestorBlock ||
|
|
wsObj.mStartReasonNode == editingHost) {
|
|
break;
|
|
}
|
|
atStart.Set(wsObj.mStartReasonNode);
|
|
}
|
|
}
|
|
|
|
// Expand selection endpoint only if we don't pass an invisible `<br>`, or if
|
|
// we really needed to pass that `<br>` (i.e., its block is now totally
|
|
// selected).
|
|
|
|
// Find next visible things after end of selection
|
|
if (atEnd.GetContainer() != commonAncestorBlock &&
|
|
atEnd.GetContainer() != editingHost) {
|
|
EditorDOMPoint atFirstInvisibleBRElement;
|
|
for (;;) {
|
|
WSRunObject wsObj(this, atEnd);
|
|
WSType wsType;
|
|
wsObj.NextVisibleNode(atEnd, &wsType);
|
|
if (wsType == WSType::br) {
|
|
if (IsVisibleBRElement(wsObj.mEndReasonNode)) {
|
|
break;
|
|
}
|
|
if (!atFirstInvisibleBRElement.IsSet()) {
|
|
atFirstInvisibleBRElement = atEnd;
|
|
}
|
|
atEnd.Set(wsObj.mEndReasonNode);
|
|
atEnd.AdvanceOffset();
|
|
continue;
|
|
}
|
|
|
|
if (wsType == WSType::thisBlock) {
|
|
// We want to keep looking up. But stop if we are crossing table
|
|
// element boundaries, or if we hit the root.
|
|
if (HTMLEditUtils::IsTableElement(wsObj.mEndReasonNode) ||
|
|
wsObj.mEndReasonNode == commonAncestorBlock ||
|
|
wsObj.mEndReasonNode == editingHost) {
|
|
break;
|
|
}
|
|
atEnd.Set(wsObj.mEndReasonNode);
|
|
atEnd.AdvanceOffset();
|
|
continue;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if (atFirstInvisibleBRElement.IsSet()) {
|
|
// Find block node containing invisible `<br>` element.
|
|
if (RefPtr<Element> brElementParent =
|
|
HTMLEditor::GetBlock(*atFirstInvisibleBRElement.GetContainer())) {
|
|
// Create a range that represents extended selection.
|
|
RefPtr<StaticRange> staticRange =
|
|
StaticRange::Create(atStart.ToRawRangeBoundary(),
|
|
atEnd.ToRawRangeBoundary(), IgnoreErrors());
|
|
if (NS_WARN_IF(!staticRange)) {
|
|
return nullptr;
|
|
}
|
|
|
|
// Check if block is entirely inside range
|
|
bool nodeBefore = false, nodeAfter = false;
|
|
RangeUtils::CompareNodeToRange(brElementParent, staticRange,
|
|
&nodeBefore, &nodeAfter);
|
|
// If block is contained in the range, include the invisible `<br>`.
|
|
if (!nodeBefore && !nodeAfter) {
|
|
return staticRange.forget();
|
|
}
|
|
// Otherwise, the new range should end at the invisible `<br>`.
|
|
atEnd = atFirstInvisibleBRElement;
|
|
}
|
|
}
|
|
}
|
|
|
|
// XXX This is unnecessary creation cost for us since we just want to return
|
|
// the start point and the end point.
|
|
return StaticRange::Create(atStart.ToRawRangeBoundary(),
|
|
atEnd.ToRawRangeBoundary(), IgnoreErrors());
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
RefPtr<nsRange> range = SelectionRefPtr()->GetRangeAt(0);
|
|
if (NS_WARN_IF(!range)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorDOMPoint startPoint(range->StartRef());
|
|
if (NS_WARN_IF(!startPoint.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
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);
|
|
|
|
// some locals we need for whitespace code
|
|
WSType wsType;
|
|
|
|
// let the whitespace code do the heavy lifting
|
|
WSRunObject wsEndObj(this, endPoint);
|
|
// Is there any intervening visible whitespace? If so we can't push
|
|
// selection past that, it would visibly change meaning of users selection.
|
|
wsEndObj.PriorVisibleNode(endPoint, &wsType);
|
|
if (wsType != WSType::text && wsType != WSType::normalWS) {
|
|
// eThisBlock and eOtherBlock conveniently distinguish cases
|
|
// of going "down" into a block and "up" out of a block.
|
|
if (wsEndObj.mStartReason == WSType::otherBlock) {
|
|
// endpoint is just after the close of a block.
|
|
nsINode* child = GetRightmostChild(wsEndObj.mStartReasonNode, true);
|
|
if (child) {
|
|
newEndPoint.SetAfter(child);
|
|
}
|
|
// else block is empty - we can leave selection alone here, i think.
|
|
} else if (wsEndObj.mStartReason == WSType::thisBlock) {
|
|
// 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 (wsEndObj.mStartReason == WSType::br) {
|
|
// endpoint is just after break. lets adjust it to before it.
|
|
newEndPoint.Set(wsEndObj.mStartReasonNode);
|
|
}
|
|
}
|
|
|
|
// similar dealio for start of range
|
|
WSRunObject wsStartObj(this, startPoint);
|
|
// Is there any intervening visible whitespace? If so we can't push
|
|
// selection past that, it would visibly change meaning of users selection.
|
|
wsStartObj.NextVisibleNode(startPoint, &wsType);
|
|
if (wsType != WSType::text && wsType != WSType::normalWS) {
|
|
// eThisBlock and eOtherBlock conveniently distinguish cases
|
|
// of going "down" into a block and "up" out of a block.
|
|
if (wsStartObj.mEndReason == WSType::otherBlock) {
|
|
// startpoint is just before the start of a block.
|
|
nsINode* child = GetLeftmostChild(wsStartObj.mEndReasonNode, true);
|
|
if (child) {
|
|
newStartPoint.Set(child);
|
|
}
|
|
// else block is empty - we can leave selection alone here, i think.
|
|
} else if (wsStartObj.mEndReason == WSType::thisBlock) {
|
|
// 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 (wsStartObj.mEndReason == WSType::br) {
|
|
// startpoint is just before a break. lets adjust it to after it.
|
|
newStartPoint.SetAfter(wsStartObj.mEndReasonNode);
|
|
}
|
|
}
|
|
|
|
// 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.
|
|
|
|
int16_t comp;
|
|
comp = nsContentUtils::ComparePoints(startPoint.ToRawRangeBoundary(),
|
|
newEndPoint.ToRawRangeBoundary());
|
|
if (comp == 1) {
|
|
return NS_OK; // New end before old start.
|
|
}
|
|
comp = nsContentUtils::ComparePoints(newStartPoint.ToRawRangeBoundary(),
|
|
endPoint.ToRawRangeBoundary());
|
|
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.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(!error.Failed(), "Failed to set selection");
|
|
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();
|
|
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) {
|
|
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) &&
|
|
!HTMLEditor::NodeIsBlockStatic(*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) {
|
|
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.Set(point.GetContainer());
|
|
DebugOnly<bool> advanced = point.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset 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 &&
|
|
!HTMLEditor::NodeIsBlockStatic(*nextEditableContent) &&
|
|
nextEditableContent->GetParent();
|
|
nextEditableContent = GetNextEditableHTMLNodeInBlock(point)) {
|
|
point.Set(nextEditableContent);
|
|
if (NS_WARN_IF(!point.AdvanceOffset())) {
|
|
break;
|
|
}
|
|
if (IsVisibleBRElement(nextEditableContent)) {
|
|
break;
|
|
}
|
|
|
|
// Check for newlines in pre-formatted text nodes.
|
|
if (EditorBase::IsPreformatted(nextEditableContent) &&
|
|
EditorBase::IsTextNode(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.Set(point.GetContainer());
|
|
if (NS_WARN_IF(!point.AdvanceOffset())) {
|
|
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++) {
|
|
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) {
|
|
// 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;
|
|
}
|
|
|
|
Element* block = GetBlock(*aStartRef.Container());
|
|
if (!block) {
|
|
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(block)) {
|
|
return;
|
|
}
|
|
|
|
bool isEmptyNode = false;
|
|
IsEmptyNode(block, &isEmptyNode, true, false);
|
|
if (isEmptyNode) {
|
|
aStartRef.Set(block, 0);
|
|
aEndRef.Set(block, block->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 whitespace 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 whitespaces 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 = new nsRange(GetDocument());
|
|
nsresult rv = range->SetStartAndEnd(startPoint.ToRawRangeBoundary(),
|
|
endPoint.ToRawRangeBoundary());
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return nullptr;
|
|
}
|
|
return range.forget();
|
|
}
|
|
|
|
already_AddRefed<nsRange> HTMLEditor::CreateRangeExtendedToHardLineStartAndEnd(
|
|
const AbstractRange& aAbstractRange, EditSubAction aEditSubAction) {
|
|
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) {
|
|
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 = new nsRange(GetDocument());
|
|
nsresult rv = range->SetStartAndEnd(startPoint.ToRawRangeBoundary(),
|
|
endPoint.ToRawRangeBoundary());
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return nullptr;
|
|
}
|
|
return range.forget();
|
|
}
|
|
|
|
class UniqueFunctor final : public BoolDomIterFunctor {
|
|
public:
|
|
explicit UniqueFunctor(nsTArray<OwningNonNull<nsINode>>& aArray)
|
|
: mArray(aArray) {}
|
|
|
|
// Used to build list of all nodes iterator covers.
|
|
virtual bool operator()(nsINode* aNode) const override {
|
|
return !mArray.Contains(aNode);
|
|
}
|
|
|
|
private:
|
|
nsTArray<OwningNonNull<nsINode>>& mArray;
|
|
};
|
|
|
|
nsresult HTMLEditor::SplitInlinesAndCollectEditTargetNodes(
|
|
nsTArray<RefPtr<nsRange>>& aArrayOfRanges,
|
|
nsTArray<OwningNonNull<nsINode>>& aOutArrayOfNodes,
|
|
EditSubAction aEditSubAction,
|
|
CollectNonEditableNodes aCollectNonEditableNodes) {
|
|
nsresult rv = SplitTextNodesAtRangeEnd(aArrayOfRanges);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "SplitTextNodesAtRangeEnd() failed");
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = SplitParentInlineElementsAtRangeEdges(aArrayOfRanges);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"SplitParentInlineElementsAtRangeEdges() failed");
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = CollectEditTargetNodes(aArrayOfRanges, aOutArrayOfNodes, aEditSubAction,
|
|
aCollectNonEditableNodes);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "CollectEditTargetNodes() failed");
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = MaybeSplitElementsAtEveryBRElement(aOutArrayOfNodes, aEditSubAction);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"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.
|
|
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.
|
|
ErrorResult error;
|
|
nsCOMPtr<nsIContent> newLeftNode = SplitNodeWithTransaction(atEnd, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.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, error);
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
error.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)) {
|
|
rv = SplitParentInlineElementsAtRangeEdges(*item);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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<nsINode>>& aOutArrayOfNodes,
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
if (aOutArrayOfNodes.IsEmpty()) {
|
|
iter.AppendList(TrivialFunctor(), aOutArrayOfNodes);
|
|
} else {
|
|
// We don't want duplicates in aOutArrayOfNodes, so we use an
|
|
// iterator/functor that only return nodes that are not already in
|
|
// aOutArrayOfNodes.
|
|
nsTArray<OwningNonNull<nsINode>> nodes;
|
|
iter.AppendList(UniqueFunctor(aOutArrayOfNodes), nodes);
|
|
aOutArrayOfNodes.AppendElements(nodes);
|
|
}
|
|
if (aCollectNonEditableNodes == CollectNonEditableNodes::No) {
|
|
for (size_t i = aOutArrayOfNodes.Length(); i > 0; --i) {
|
|
if (!IsEditable(aOutArrayOfNodes[i - 1])) {
|
|
aOutArrayOfNodes.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 = aOutArrayOfNodes.Length() - 1; i >= 0; i--) {
|
|
OwningNonNull<nsINode> node = aOutArrayOfNodes[i];
|
|
if (HTMLEditUtils::IsListItem(node)) {
|
|
aOutArrayOfNodes.RemoveElementAt(i);
|
|
CollectChildren(*node, aOutArrayOfNodes, i, CollectListChildren::Yes,
|
|
CollectTableChildren::Yes, aCollectNonEditableNodes);
|
|
}
|
|
}
|
|
// Empty text node shouldn't be selected if unnecessary
|
|
for (int32_t i = aOutArrayOfNodes.Length() - 1; i >= 0; i--) {
|
|
if (Text* text = aOutArrayOfNodes[i]->GetAsText()) {
|
|
// Don't select empty text except to empty block
|
|
if (!IsVisibleTextNode(*text)) {
|
|
aOutArrayOfNodes.RemoveElementAt(i);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case EditSubAction::eCreateOrChangeList: {
|
|
for (size_t i = aOutArrayOfNodes.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<nsINode> node = aOutArrayOfNodes[i - 1];
|
|
if (HTMLEditUtils::IsTableElementButNotTable(node)) {
|
|
// XXX aCollectNonEditableNodes is ignored here. Maybe a bug.
|
|
aOutArrayOfNodes.RemoveElementAt(i - 1);
|
|
CollectChildren(node, aOutArrayOfNodes, 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 (aOutArrayOfNodes.Length() != 1) {
|
|
break;
|
|
}
|
|
Element* deepestDivBlockquoteOrListElement =
|
|
GetDeepestEditableOnlyChildDivBlockquoteOrListElement(
|
|
aOutArrayOfNodes[0]);
|
|
if (!deepestDivBlockquoteOrListElement) {
|
|
break;
|
|
}
|
|
if (deepestDivBlockquoteOrListElement->IsAnyOfHTMLElements(
|
|
nsGkAtoms::div, nsGkAtoms::blockquote)) {
|
|
aOutArrayOfNodes.Clear();
|
|
// XXX Before we're called, non-editable nodes are ignored. However,
|
|
// we may append non-editable nodes here.
|
|
CollectChildren(*deepestDivBlockquoteOrListElement, aOutArrayOfNodes, 0,
|
|
CollectListChildren::No, CollectTableChildren::No,
|
|
CollectNonEditableNodes::Yes);
|
|
break;
|
|
}
|
|
aOutArrayOfNodes.ReplaceElementAt(
|
|
0, OwningNonNull<nsINode>(*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 = aOutArrayOfNodes.Length() - 1; i >= 0; i--) {
|
|
OwningNonNull<nsINode> node = aOutArrayOfNodes[i];
|
|
if (HTMLEditUtils::IsTableElementButNotTable(node)) {
|
|
aOutArrayOfNodes.RemoveElementAt(i);
|
|
CollectChildren(*node, aOutArrayOfNodes, i, CollectListChildren::Yes,
|
|
CollectTableChildren::Yes, aCollectNonEditableNodes);
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// Outdent should look inside of divs.
|
|
if (aEditSubAction == EditSubAction::eOutdent && !IsCSSEnabled()) {
|
|
for (int32_t i = aOutArrayOfNodes.Length() - 1; i >= 0; i--) {
|
|
OwningNonNull<nsINode> node = aOutArrayOfNodes[i];
|
|
if (node->IsHTMLElement(nsGkAtoms::div)) {
|
|
aOutArrayOfNodes.RemoveElementAt(i);
|
|
CollectChildren(*node, aOutArrayOfNodes, i, CollectListChildren::No,
|
|
CollectTableChildren::No, aCollectNonEditableNodes);
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::MaybeSplitElementsAtEveryBRElement(
|
|
nsTArray<OwningNonNull<nsINode>>& aArrayOfNodes,
|
|
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 = aArrayOfNodes.Length() - 1; i >= 0; i--) {
|
|
OwningNonNull<nsINode> node = aArrayOfNodes[i];
|
|
if (HTMLEditor::NodeIsInlineStatic(node) && IsContainer(node) &&
|
|
!EditorBase::IsTextNode(node)) {
|
|
nsTArray<OwningNonNull<nsINode>> arrayOfInlines;
|
|
nsresult rv = SplitElementsAtEveryBRElement(
|
|
MOZ_KnownLive(*node->AsContent()), arrayOfInlines);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
// Put these nodes in aArrayOfNodes, replacing the current node
|
|
aArrayOfNodes.RemoveElementAt(i);
|
|
aArrayOfNodes.InsertElementsAt(i, arrayOfInlines);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
default:
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
Element* HTMLEditor::GetParentListElementAtSelection() const {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
for (uint32_t i = 0; i < SelectionRefPtr()->RangeCount(); ++i) {
|
|
nsRange* range = SelectionRefPtr()->GetRangeAt(i);
|
|
for (nsINode* parent = range->GetCommonAncestor(); parent;
|
|
parent = parent->GetParentNode()) {
|
|
if (HTMLEditUtils::IsList(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::IsList(content));
|
|
content = content->GetFirstChild()) {
|
|
if (CountEditableChildren(content) != 1) {
|
|
return content->AsElement();
|
|
}
|
|
parentElement = content->AsElement();
|
|
}
|
|
return parentElement;
|
|
}
|
|
|
|
nsresult HTMLEditRules::GetParagraphFormatNodes(
|
|
nsTArray<OwningNonNull<nsINode>>& outArrayOfNodes) {
|
|
MOZ_ASSERT(IsEditorDataAvailable());
|
|
|
|
nsresult rv = HTMLEditorRef().CollectEditTargetNodesInExtendedSelectionRanges(
|
|
outArrayOfNodes, EditSubAction::eCreateOrRemoveBlock,
|
|
HTMLEditor::CollectNonEditableNodes::Yes);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
// Pre-process our list of nodes
|
|
for (int32_t i = outArrayOfNodes.Length() - 1; i >= 0; i--) {
|
|
OwningNonNull<nsINode> testNode = outArrayOfNodes[i];
|
|
|
|
// Remove all non-editable nodes. Leave them be.
|
|
if (!HTMLEditorRef().IsEditable(testNode)) {
|
|
outArrayOfNodes.RemoveElementAt(i);
|
|
continue;
|
|
}
|
|
|
|
// Scan for table elements. If we find table elements other than table,
|
|
// replace it with a list of any editable non-table content. Ditto for
|
|
// list elements.
|
|
if (HTMLEditUtils::IsTableElement(testNode) ||
|
|
HTMLEditUtils::IsList(testNode) ||
|
|
HTMLEditUtils::IsListItem(testNode)) {
|
|
outArrayOfNodes.RemoveElementAt(i);
|
|
HTMLEditorRef().CollectChildren(testNode, outArrayOfNodes, i,
|
|
HTMLEditor::CollectListChildren::Yes,
|
|
HTMLEditor::CollectTableChildren::Yes,
|
|
HTMLEditor::CollectNonEditableNodes::Yes);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
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 (NS_WARN_IF(splitEndInlineResult.Failed())) {
|
|
return splitEndInlineResult.Rv();
|
|
}
|
|
EditorRawDOMPoint splitPointAtEnd(splitEndInlineResult.SplitPoint());
|
|
if (NS_WARN_IF(!splitPointAtEnd.IsSet())) {
|
|
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 (NS_WARN_IF(splitStartInlineResult.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 (NS_WARN_IF(!splitPointAtStart.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
aRangeItem.mStartContainer = splitPointAtStart.GetContainer();
|
|
aRangeItem.mStartOffset = splitPointAtStart.Offset();
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::SplitElementsAtEveryBRElement(
|
|
nsIContent& aMostAncestorToBeSplit,
|
|
nsTArray<OwningNonNull<nsINode>>& aOutArrayOfNodes) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
// First build up a list of all the break nodes inside the inline container.
|
|
nsTArray<OwningNonNull<nsINode>> arrayOfBreaks;
|
|
BRNodeFunctor functor;
|
|
DOMIterator iter(aMostAncestorToBeSplit);
|
|
iter.AppendList(functor, arrayOfBreaks);
|
|
|
|
// If there aren't any breaks, just put inNode itself in the array
|
|
if (arrayOfBreaks.IsEmpty()) {
|
|
aOutArrayOfNodes.AppendElement(aMostAncestorToBeSplit);
|
|
return NS_OK;
|
|
}
|
|
|
|
// Else we need to bust up aMostAncestorToBeSplit along all the breaks
|
|
nsCOMPtr<nsIContent> nextContent = &aMostAncestorToBeSplit;
|
|
for (OwningNonNull<nsINode>& brNode : arrayOfBreaks) {
|
|
EditorDOMPoint atBrNode(brNode);
|
|
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 (NS_WARN_IF(splitNodeResult.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.
|
|
aOutArrayOfNodes.AppendElement(*splitNodeResult.GetPreviousNode());
|
|
}
|
|
|
|
// Move break outside of container and also put in node list
|
|
EditorDOMPoint atNextNode(splitNodeResult.GetNextNode());
|
|
nsresult rv = MoveNodeWithTransaction(MOZ_KnownLive(*brNode->AsContent()),
|
|
atNextNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
aOutArrayOfNodes.AppendElement(*brNode);
|
|
|
|
nextContent = splitNodeResult.GetNextNode();
|
|
}
|
|
|
|
// Now tack on remaining next node.
|
|
aOutArrayOfNodes.AppendElement(*nextContent);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIContent* HTMLEditor::GetMostAncestorInlineElement(nsINode& aNode) const {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (!aNode.IsContent() || HTMLEditor::NodeIsBlockStatic(aNode)) {
|
|
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;
|
|
}
|
|
|
|
// Looks for the highest inline parent in the editing host.
|
|
nsIContent* content = aNode.AsContent();
|
|
for (nsIContent* parent = content->GetParent();
|
|
parent && parent != host && HTMLEditor::NodeIsInlineStatic(*parent);
|
|
parent = parent->GetParent()) {
|
|
content = parent;
|
|
}
|
|
return content;
|
|
}
|
|
|
|
// static
|
|
void HTMLEditor::MakeTransitionList(
|
|
const nsTArray<OwningNonNull<nsINode>>& aNodeArray,
|
|
nsTArray<bool>& aTransitionArray) {
|
|
nsINode* prevParent = nullptr;
|
|
aTransitionArray.EnsureLengthAtLeast(aNodeArray.Length());
|
|
for (uint32_t i = 0; i < aNodeArray.Length(); i++) {
|
|
aTransitionArray[i] = aNodeArray[i]->GetParentNode() != prevParent;
|
|
prevParent = aNodeArray[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::IsTableElement(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 =
|
|
WSRunObject::PrepareToSplitAcrossBlocks(this, address_of(node), &aOffset);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
if (NS_WARN_IF(!node->IsContent())) {
|
|
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;
|
|
}
|
|
NS_WARNING_ASSERTION(splitHeaderResult.Succeeded(),
|
|
"Failed to split aHeader");
|
|
|
|
// 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));
|
|
bool isEmptyNode;
|
|
rv = IsEmptyNode(prevItem, &isEmptyNode);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
if (isEmptyNode) {
|
|
CreateElementResult createPaddingBRResult =
|
|
InsertPaddingBRElementForEmptyLastLineWithTransaction(
|
|
EditorDOMPoint(prevItem, 0));
|
|
if (NS_WARN_IF(createPaddingBRResult.Failed())) {
|
|
return createPaddingBRResult.Rv();
|
|
}
|
|
}
|
|
}
|
|
|
|
// If the new (righthand) header node is empty, delete it
|
|
if (IsEmptyBlockElement(aHeader, IgnoreSingleBR::Yes)) {
|
|
rv = DeleteNodeWithTransaction(aHeader);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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> pNode = CreateNodeWithTransaction(
|
|
¶Atom == nsGkAtoms::br ? *nsGkAtoms::p : MOZ_KnownLive(paraAtom),
|
|
nextToHeader);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!pNode)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Append a <br> to it
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(EditorDOMPoint(pNode, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Set selection to before the break
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(EditorRawDOMPoint(pNode, 0), error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
EditorRawDOMPoint afterSibling(sibling);
|
|
if (NS_WARN_IF(!afterSibling.AdvanceOffset())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// Put selection after break
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(afterSibling, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// Put selection at front of righthand heading
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(RawRangeBoundary(&aHeader, 0), error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
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 whitespace collapsing in these cases since it needs
|
|
// some additional work with WSRunObject 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 whitespace 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) ||
|
|
EditorBase::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) ||
|
|
EditorBase::IsPaddingBRElementForEmptyLastLine(*brContent)) {
|
|
pointToInsertBR.Set(atStartOfSelection.GetContainer());
|
|
DebugOnly<bool> advanced = pointToInsertBR.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset 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.SuppressException();
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(error.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> nearNode =
|
|
GetPreviousEditableHTMLNode(atStartOfSelection);
|
|
if (!nearNode || !IsVisibleBRElement(nearNode) ||
|
|
EditorBase::IsPaddingBRElementForEmptyLastLine(*nearNode)) {
|
|
// is there a BR after it?
|
|
nearNode = GetNextEditableHTMLNode(atStartOfSelection);
|
|
if (!nearNode || !IsVisibleBRElement(nearNode) ||
|
|
EditorBase::IsPaddingBRElementForEmptyLastLine(*nearNode)) {
|
|
pointToInsertBR = atStartOfSelection;
|
|
splitAfterNewBR = true;
|
|
}
|
|
}
|
|
if (!pointToInsertBR.IsSet() && TextEditUtils::IsBreak(nearNode)) {
|
|
brContent = nearNode;
|
|
}
|
|
}
|
|
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, "Failed to create a <br> element");
|
|
if (splitAfterNewBR) {
|
|
// We split the parent after the br we've just inserted.
|
|
pointToSplitParentDivOrP.Set(brContent);
|
|
DebugOnly<bool> advanced = pointToSplitParentDivOrP.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset after the new <br>");
|
|
}
|
|
}
|
|
EditActionResult result(
|
|
SplitParagraph(aParentDivOrP, pointToSplitParentDivOrP, brContent));
|
|
result.MarkAsHandled();
|
|
if (NS_WARN_IF(result.Failed())) {
|
|
return result;
|
|
}
|
|
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 = WSRunObject::PrepareToSplitAcrossBlocks(
|
|
this, address_of(selNode), &selOffset);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
if (NS_WARN_IF(!selNode->IsContent())) {
|
|
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 (NS_WARN_IF(splitDivOrPResult.Failed())) {
|
|
return splitDivOrPResult.Rv();
|
|
}
|
|
if (NS_WARN_IF(!splitDivOrPResult.DidSplit())) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
if (splitDivOrPResult.GetNextNode()->IsElement()) {
|
|
rv = InsertBRElementIfEmptyBlockElement(
|
|
MOZ_KnownLive(*splitDivOrPResult.GetNextNode()->AsElement()));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// selection to beginning of right hand para;
|
|
// look inside any containers that are up front.
|
|
nsIContent* child = GetLeftmostChild(&aParentDivOrP, true);
|
|
if (EditorBase::IsTextNode(child) || IsContainer(child)) {
|
|
EditorRawDOMPoint atStartOfChild(child, 0);
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->Collapse(atStartOfChild, ignoredError);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"Failed to collapse selection at the end of the child, but ignored");
|
|
} else {
|
|
EditorRawDOMPoint atChild(child);
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->Collapse(atChild, ignoredError);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"Failed to collapse selection at the child, 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.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.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::IsList(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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(RawRangeBoundary(&aListItem, 0), error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// Otherwise kill this item
|
|
nsresult rv = DeleteNodeWithTransaction(aListItem);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
// Time to insert a paragraph
|
|
nsStaticAtom& paraAtom = DefaultParagraphSeparatorTagName();
|
|
// We want a wrapper even if we separate with <br>
|
|
RefPtr<Element> pNode = CreateNodeWithTransaction(
|
|
¶Atom == nsGkAtoms::br ? *nsGkAtoms::p : MOZ_KnownLive(paraAtom),
|
|
atNextSiblingOfLeftList);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!pNode)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Append a <br> to it
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(EditorDOMPoint(pNode, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Set selection to before the break
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(EditorRawDOMPoint(pNode, 0), error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// 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 = WSRunObject::PrepareToSplitAcrossBlocks(
|
|
this, address_of(selNode), &aOffset);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
if (NS_WARN_IF(!selNode->IsContent())) {
|
|
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(),
|
|
"Failed to split the list item");
|
|
|
|
// 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)) {
|
|
bool isEmptyNode;
|
|
rv = IsEmptyNode(prevItem, &isEmptyNode);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
if (isEmptyNode) {
|
|
CreateElementResult createPaddingBRResult =
|
|
InsertPaddingBRElementForEmptyLastLineWithTransaction(
|
|
EditorDOMPoint(prevItem, 0));
|
|
if (NS_WARN_IF(createPaddingBRResult.Failed())) {
|
|
return createPaddingBRResult.Rv();
|
|
}
|
|
} else {
|
|
rv = IsEmptyNode(&aListItem, &isEmptyNode, true);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
if (isEmptyNode) {
|
|
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 (NS_WARN_IF(!newListItem)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
rv = DeleteNodeWithTransaction(aListItem);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(EditorRawDOMPoint(newListItem, 0), error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
if (brElement) {
|
|
EditorRawDOMPoint atBrNode(brElement);
|
|
if (NS_WARN_IF(!atBrNode.IsSetAndValid())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(atBrNode, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
} else {
|
|
WSRunObject wsObj(this, &aListItem, 0);
|
|
nsCOMPtr<nsINode> visNode;
|
|
int32_t visOffset = 0;
|
|
WSType wsType;
|
|
wsObj.NextVisibleNode(EditorRawDOMPoint(&aListItem, 0),
|
|
address_of(visNode), &visOffset, &wsType);
|
|
if (wsType == WSType::special || wsType == WSType::br ||
|
|
visNode->IsHTMLElement(nsGkAtoms::hr)) {
|
|
EditorRawDOMPoint atVisNode(visNode);
|
|
if (NS_WARN_IF(!atVisNode.IsSetAndValid())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(atVisNode, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
rv = SelectionRefPtr()->Collapse(visNode, visOffset);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
}
|
|
}
|
|
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(EditorRawDOMPoint(&aListItem, 0), error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::MoveNodesIntoNewBlockquoteElement(
|
|
nsTArray<OwningNonNull<nsINode>>& aNodeArray) {
|
|
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& curNode : aNodeArray) {
|
|
// Get the node to act on, and its location
|
|
if (NS_WARN_IF(!curNode->IsContent())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// If the node is a table element or list item, dive inside
|
|
if (HTMLEditUtils::IsTableElementButNotTable(curNode) ||
|
|
HTMLEditUtils::IsListItem(curNode)) {
|
|
// Forget any previous block
|
|
curBlock = nullptr;
|
|
// Recursion time
|
|
AutoTArray<OwningNonNull<nsINode>, 24> childNodes;
|
|
HTMLEditor::GetChildNodesOf(*curNode, childNodes);
|
|
nsresult rv = MoveNodesIntoNewBlockquoteElement(childNodes);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// If the node has different parent than previous node, further nodes in a
|
|
// new parent
|
|
if (prevParent) {
|
|
if (prevParent != curNode->GetParentNode()) {
|
|
// Forget any previous blockquote node we were using
|
|
curBlock = nullptr;
|
|
prevParent = curNode->GetParentNode();
|
|
}
|
|
} else {
|
|
prevParent = curNode->GetParentNode();
|
|
}
|
|
|
|
// If no curBlock, make one
|
|
if (!curBlock) {
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(*nsGkAtoms::blockquote,
|
|
EditorDOMPoint(curNode));
|
|
if (NS_WARN_IF(splitNodeResult.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 (NS_WARN_IF(!curBlock)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = curBlock;
|
|
// note: doesn't matter if we set mNewBlockElement multiple times.
|
|
}
|
|
|
|
nsresult rv = MoveNodeToEndWithTransaction(
|
|
MOZ_KnownLive(*curNode->AsContent()), *curBlock);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::RemoveBlockContainerElements(
|
|
nsTArray<OwningNonNull<nsINode>>& aNodeArray) {
|
|
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...
|
|
nsCOMPtr<Element> curBlock;
|
|
nsCOMPtr<nsIContent> firstNode, lastNode;
|
|
for (auto& curNode : aNodeArray) {
|
|
// If curNode is an <address>, <p>, <hn>, or <pre>, remove it.
|
|
if (HTMLEditUtils::IsFormatNode(curNode)) {
|
|
// Process any partial progress saved
|
|
if (curBlock) {
|
|
SplitRangeOffFromNodeResult removeMiddleContainerResult =
|
|
SplitRangeOffFromBlockAndRemoveMiddleContainer(
|
|
*curBlock, *firstNode, *lastNode);
|
|
if (NS_WARN_IF(removeMiddleContainerResult.Failed())) {
|
|
return removeMiddleContainerResult.Rv();
|
|
}
|
|
firstNode = lastNode = curBlock = nullptr;
|
|
}
|
|
if (!IsEditable(curNode)) {
|
|
continue;
|
|
}
|
|
// Remove current block
|
|
nsresult rv = RemoveBlockContainerWithTransaction(
|
|
MOZ_KnownLive(*curNode->AsElement()));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// XXX How about, <th>, <thead>, <tfoot>, <dt>, <dl>?
|
|
if (curNode->IsAnyOfHTMLElements(
|
|
nsGkAtoms::table, nsGkAtoms::tr, nsGkAtoms::tbody, nsGkAtoms::td,
|
|
nsGkAtoms::li, nsGkAtoms::blockquote, nsGkAtoms::div) ||
|
|
HTMLEditUtils::IsList(curNode)) {
|
|
// Process any partial progress saved
|
|
if (curBlock) {
|
|
SplitRangeOffFromNodeResult removeMiddleContainerResult =
|
|
SplitRangeOffFromBlockAndRemoveMiddleContainer(
|
|
*curBlock, *firstNode, *lastNode);
|
|
if (NS_WARN_IF(removeMiddleContainerResult.Failed())) {
|
|
return removeMiddleContainerResult.Rv();
|
|
}
|
|
firstNode = lastNode = curBlock = nullptr;
|
|
}
|
|
if (!IsEditable(curNode)) {
|
|
continue;
|
|
}
|
|
// Recursion time
|
|
AutoTArray<OwningNonNull<nsINode>, 24> childNodes;
|
|
HTMLEditor::GetChildNodesOf(*curNode, childNodes);
|
|
nsresult rv = RemoveBlockContainerElements(childNodes);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditor::NodeIsInlineStatic(curNode)) {
|
|
if (curBlock) {
|
|
// If so, is this node a descendant?
|
|
if (EditorUtils::IsDescendantOf(*curNode, *curBlock)) {
|
|
// Then we don't need to do anything different for this node
|
|
lastNode = curNode->AsContent();
|
|
continue;
|
|
}
|
|
// Otherwise, we have progressed beyond end of curBlock, so let's
|
|
// handle it now. We need to remove the portion of curBlock that
|
|
// contains [firstNode - lastNode].
|
|
SplitRangeOffFromNodeResult removeMiddleContainerResult =
|
|
SplitRangeOffFromBlockAndRemoveMiddleContainer(
|
|
*curBlock, *firstNode, *lastNode);
|
|
if (NS_WARN_IF(removeMiddleContainerResult.Failed())) {
|
|
return removeMiddleContainerResult.Rv();
|
|
}
|
|
firstNode = lastNode = curBlock = nullptr;
|
|
// Fall out and handle curNode
|
|
}
|
|
curBlock = GetBlockNodeParent(curNode);
|
|
if (!curBlock || !HTMLEditUtils::IsFormatNode(curBlock) ||
|
|
!IsEditable(curBlock)) {
|
|
// Not a block kind that we care about.
|
|
curBlock = nullptr;
|
|
} else {
|
|
firstNode = lastNode = curNode->AsContent();
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (curBlock) {
|
|
// Some node that is already sans block style. Skip over it and process
|
|
// any partial progress saved.
|
|
SplitRangeOffFromNodeResult removeMiddleContainerResult =
|
|
SplitRangeOffFromBlockAndRemoveMiddleContainer(*curBlock, *firstNode,
|
|
*lastNode);
|
|
if (NS_WARN_IF(removeMiddleContainerResult.Failed())) {
|
|
return removeMiddleContainerResult.Rv();
|
|
}
|
|
firstNode = lastNode = curBlock = nullptr;
|
|
continue;
|
|
}
|
|
}
|
|
// Process any partial progress saved
|
|
if (curBlock) {
|
|
SplitRangeOffFromNodeResult removeMiddleContainerResult =
|
|
SplitRangeOffFromBlockAndRemoveMiddleContainer(*curBlock, *firstNode,
|
|
*lastNode);
|
|
if (NS_WARN_IF(removeMiddleContainerResult.Failed())) {
|
|
return removeMiddleContainerResult.Rv();
|
|
}
|
|
firstNode = lastNode = curBlock = nullptr;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::CreateOrChangeBlockContainerElement(
|
|
nsTArray<OwningNonNull<nsINode>>& aNodeArray, 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& curNode : aNodeArray) {
|
|
if (NS_WARN_IF(!curNode->GetParent())) {
|
|
// 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;
|
|
}
|
|
|
|
EditorDOMPoint atCurNode(curNode);
|
|
|
|
// Is it already the right kind of block, or an uneditable block?
|
|
if (curNode->IsHTMLElement(&aBlockTag) ||
|
|
(!IsEditable(curNode) && HTMLEditor::NodeIsBlockStatic(curNode))) {
|
|
// Forget any previous block used for previous inline nodes
|
|
curBlock = nullptr;
|
|
// Do nothing to this block
|
|
continue;
|
|
}
|
|
|
|
// If curNode 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(curNode) ||
|
|
HTMLEditUtils::IsFormatNode(curNode)) {
|
|
// Forget any previous block used for previous inline nodes
|
|
curBlock = nullptr;
|
|
newBlock = ReplaceContainerAndCloneAttributesWithTransaction(
|
|
MOZ_KnownLive(*curNode->AsElement()), aBlockTag);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!newBlock)) {
|
|
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() != atCurNode.GetContainer())) {
|
|
return NS_ERROR_EDITOR_UNEXPECTED_DOM_TREE;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsTable(curNode) || HTMLEditUtils::IsList(curNode) ||
|
|
curNode->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<nsINode>, 24> childNodes;
|
|
HTMLEditor::GetChildNodesOf(*curNode, childNodes);
|
|
if (!childNodes.IsEmpty()) {
|
|
nsresult rv =
|
|
CreateOrChangeBlockContainerElement(childNodes, aBlockTag);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// Make sure we can put a block here
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(aBlockTag, atCurNode);
|
|
if (NS_WARN_IF(splitNodeResult.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(atCurNode.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 (NS_WARN_IF(!theBlock)) {
|
|
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 (curNode->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;
|
|
nsresult rv = DeleteNodeWithTransaction(*curNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
// The break is the first (or even only) node we encountered. Create a
|
|
// block for it.
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(aBlockTag, atCurNode);
|
|
if (NS_WARN_IF(splitNodeResult.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(atCurNode.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 (NS_WARN_IF(!curBlock)) {
|
|
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.
|
|
nsresult rv = MoveNodeToEndWithTransaction(
|
|
MOZ_KnownLive(*curNode->AsContent()), *curBlock);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditor::NodeIsInlineStatic(curNode)) {
|
|
// If curNode 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 curNode is a non editable, drop it if we are going to <pre>.
|
|
if (&aBlockTag == nsGkAtoms::pre && !IsEditable(curNode)) {
|
|
// Do nothing to this block
|
|
continue;
|
|
}
|
|
|
|
// If no curBlock, make one
|
|
if (!curBlock) {
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(aBlockTag, atCurNode);
|
|
if (NS_WARN_IF(splitNodeResult.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(atCurNode.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 (NS_WARN_IF(!curBlock)) {
|
|
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 curNode.
|
|
atCurNode.Set(curNode);
|
|
|
|
// Remember our new block for postprocessing
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = curBlock;
|
|
// Note: doesn't matter if we set mNewBlockElement multiple times.
|
|
}
|
|
|
|
if (NS_WARN_IF(!atCurNode.IsSet())) {
|
|
// This is possible due to mutation events, let's not assert
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
// XXX If curNode 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.
|
|
nsresult rv = MoveNodeToEndWithTransaction(
|
|
MOZ_KnownLive(*curNode->AsContent()), *curBlock);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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 (NS_WARN_IF(aStartOfDeepestRightNode.GetContainer() != host &&
|
|
!EditorUtils::IsDescendantOf(
|
|
*aStartOfDeepestRightNode.GetContainer(), *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 (NS_WARN_IF(pointToInsert.GetChild() == host)) {
|
|
return SplitNodeResult(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
if (CanContainTag(*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(),
|
|
"Failed to split the node for insert the element");
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
EditorDOMPoint ret(&aNodeRight, aNodeLeft.Length());
|
|
|
|
// Separate join rules for differing blocks
|
|
if (HTMLEditUtils::IsList(&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), "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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
// XXX This condition is odd. Despite of the name, `AreNodesSameType()`
|
|
// compairs its style with `CSSEditUtils::ElementsSameStyle()` only
|
|
// when `IsCSSEnabled()` returns true and `lastLeft` is a `<span>`
|
|
// element. However, calling `CSSEditUtils::ElementsSameStyle()`
|
|
// without those checking again.
|
|
if (HTMLEditor::AreNodesSameType(*lastLeft, *firstRight) &&
|
|
(lastLeft->IsText() ||
|
|
(lastLeft->IsElement() && firstRight->IsElement() &&
|
|
CSSEditUtils::ElementsSameStyle(lastLeft->AsElement(),
|
|
firstRight->AsElement())))) {
|
|
nsresult rv = JoinNearestEditableNodesWithTransaction(
|
|
*lastLeft, *firstRight, aNewFirstChildOfRightNode);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"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(nsINode& aNode) {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
nsresult rv = GetInlineStyles(
|
|
aNode, TopLevelEditSubActionDataRef().mCachedInlineStyles);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "GetInlineStyles() failed");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::GetInlineStyles(nsINode& aNode,
|
|
AutoStyleCacheArray& aStyleCacheArray) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
bool useCSS = IsCSSEnabled();
|
|
|
|
for (StyleCache& styleCache : aStyleCacheArray) {
|
|
// If type-in state is set, don't intervene
|
|
bool typeInSet, unused;
|
|
mTypeInState->GetTypingState(typeInSet, unused, styleCache.mTag,
|
|
styleCache.mAttr, nullptr);
|
|
if (typeInSet) {
|
|
continue;
|
|
}
|
|
|
|
bool isSet = false;
|
|
nsAutoString outValue;
|
|
// Don't use CSS for <font size>, we don't support it usefully (bug
|
|
// 780035)
|
|
if (!useCSS || (styleCache.mTag == nsGkAtoms::font &&
|
|
styleCache.mAttr == nsGkAtoms::size)) {
|
|
isSet = IsTextPropertySetByContent(&aNode, styleCache.mTag,
|
|
styleCache.mAttr, nullptr, &outValue);
|
|
} else {
|
|
isSet = CSSEditUtils::IsCSSEquivalentToHTMLInlineStyleSet(
|
|
&aNode, styleCache.mTag, styleCache.mAttr, outValue,
|
|
CSSEditUtils::eComputed);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
}
|
|
if (isSet) {
|
|
styleCache.mPresent = true;
|
|
styleCache.mValue.Assign(outValue);
|
|
}
|
|
}
|
|
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.
|
|
|
|
// remember if we are in css mode
|
|
bool useCSS = IsCSSEnabled();
|
|
|
|
if (!SelectionRefPtr()->RangeCount()) {
|
|
// Nothing to do
|
|
return NS_OK;
|
|
}
|
|
const RangeBoundary& atStartOfSelection =
|
|
SelectionRefPtr()->GetRangeAt(0)->StartRef();
|
|
nsCOMPtr<nsIContent> selNode =
|
|
atStartOfSelection.Container() &&
|
|
atStartOfSelection.Container()->IsContent()
|
|
? atStartOfSelection.Container()->AsContent()
|
|
: nullptr;
|
|
if (!selNode) {
|
|
// Nothing to do
|
|
return NS_OK;
|
|
}
|
|
|
|
AutoStyleCacheArray styleCacheArrayAtInsertionPoint;
|
|
nsresult rv = GetInlineStyles(*selNode, styleCacheArrayAtInsertionPoint);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv == NS_ERROR_EDITOR_DESTROYED ? NS_ERROR_EDITOR_DESTROYED : NS_OK;
|
|
}
|
|
|
|
for (size_t i = 0; i < styleCacheArrayAtInsertionPoint.Length(); ++i) {
|
|
StyleCache& styleCacheAtInsertionPoint = styleCacheArrayAtInsertionPoint[i];
|
|
StyleCache& styleCacheBeforeEdit =
|
|
TopLevelEditSubActionDataRef().mCachedInlineStyles[i];
|
|
if (styleCacheBeforeEdit.mPresent) {
|
|
bool bFirst, bAny, bAll;
|
|
bFirst = bAny = bAll = false;
|
|
|
|
nsAutoString curValue;
|
|
if (useCSS) {
|
|
// check computed style first in css case
|
|
bAny = CSSEditUtils::IsCSSEquivalentToHTMLInlineStyleSet(
|
|
selNode, styleCacheBeforeEdit.mTag, styleCacheBeforeEdit.mAttr,
|
|
curValue, CSSEditUtils::eComputed);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
}
|
|
if (!bAny) {
|
|
// then check typeinstate and html style
|
|
nsresult rv = GetInlinePropertyBase(
|
|
*styleCacheBeforeEdit.mTag, styleCacheBeforeEdit.mAttr,
|
|
&styleCacheBeforeEdit.mValue, &bFirst, &bAny, &bAll, &curValue);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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 ((!bAny ||
|
|
IsStyleCachePreservingSubAction(GetTopLevelEditSubAction())) &&
|
|
(!styleCacheAtInsertionPoint.mPresent ||
|
|
styleCacheAtInsertionPoint.mValue != styleCacheBeforeEdit.mValue)) {
|
|
mTypeInState->SetProp(styleCacheBeforeEdit.mTag,
|
|
styleCacheBeforeEdit.mAttr,
|
|
styleCacheBeforeEdit.mValue);
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::InsertBRElementToEmptyListItemsAndTableCellsInRange(
|
|
const RawRangeBoundary& aStartRef, const RawRangeBoundary& aEndRef) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
AutoTArray<OwningNonNull<nsINode>, 64> nodeArray;
|
|
EmptyEditableFunctor functor(this);
|
|
DOMIterator iter;
|
|
if (NS_WARN_IF(NS_FAILED(iter.Init(aStartRef, aEndRef)))) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
iter.AppendList(functor, nodeArray);
|
|
|
|
// Put padding <br> elements for empty <li> and <td>.
|
|
for (auto& node : nodeArray) {
|
|
// 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(node));
|
|
CreateElementResult createPaddingBRResult =
|
|
InsertPaddingBRElementForEmptyLastLineWithTransaction(endOfNode);
|
|
if (NS_WARN_IF(createPaddingBRResult.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 (NS_WARN_IF(!staticRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
bool nodeBefore, nodeAfter;
|
|
nsresult rv = RangeUtils::CompareNodeToRange(&aElement, staticRange,
|
|
&nodeBefore, &nodeAfter);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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 (EditorBase::IsTextNode(lastEditableContent) ||
|
|
IsContainer(lastEditableContent)) {
|
|
endPoint.SetToEndOf(lastEditableContent);
|
|
} else {
|
|
endPoint.Set(lastEditableContent);
|
|
if (NS_WARN_IF(!endPoint.AdvanceOffset())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(endPoint, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(!error.Failed(), "Selection::Collapse() failed");
|
|
return error.StealNSResult();
|
|
}
|
|
|
|
// selection is before block. put at start of block.
|
|
nsIContent* firstEditableContent = GetFirstEditableChild(aElement);
|
|
if (!firstEditableContent) {
|
|
firstEditableContent = &aElement;
|
|
}
|
|
EditorRawDOMPoint atStartOfBlock;
|
|
if (EditorBase::IsTextNode(firstEditableContent) ||
|
|
IsContainer(firstEditableContent)) {
|
|
atStartOfBlock.Set(firstEditableContent);
|
|
} else {
|
|
atStartOfBlock.Set(firstEditableContent, 0);
|
|
}
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(atStartOfBlock, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(!error.Failed(), "Selection::Collapse() failed");
|
|
return error.StealNSResult();
|
|
}
|
|
|
|
void HTMLEditor::SetSelectionInterlinePosition() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(SelectionRefPtr()->IsCollapsed());
|
|
|
|
// Get the (collapsed) selection location
|
|
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 (HTMLEditor::NodeIsBlockStatic(*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 (HTMLEditor::NodeIsBlockStatic(*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.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// If selection start is not editable, climb up the tree until editable one.
|
|
while (!IsEditable(point.GetContainer())) {
|
|
point.Set(point.GetContainer());
|
|
if (NS_WARN_IF(!point.IsSet())) {
|
|
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 = GetBlock(*point.GetContainer())) {
|
|
if (IsEditable(blockElement)) {
|
|
bool isEmptyNode;
|
|
nsresult rv = IsEmptyNode(blockElement, &isEmptyNode, false, false);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
if (isEmptyNode && CanContainTag(*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);
|
|
if (NS_WARN_IF(createPaddingBRResult.Failed())) {
|
|
return createPaddingBRResult.Rv();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
}
|
|
}
|
|
|
|
// 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 = GetBlock(*point.GetContainer());
|
|
RefPtr<Element> blockElementParentAtPreviousEditableContent =
|
|
GetBlockNodeParent(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 &&
|
|
TextEditUtils::IsBreak(previousEditableContent)) {
|
|
// 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 (NS_WARN_IF(createPaddingBRResult.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(),
|
|
"Failed to set interline position");
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(point, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
}
|
|
// 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 (EditorBase::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(),
|
|
"Failed to set interline position");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// 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 (TextEditUtils::IsBreak(previousEditableContentInBlock) ||
|
|
EditorBase::IsTextNode(previousEditableContentInBlock) ||
|
|
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 (TextEditUtils::IsBreak(nextEditableContentInBlock) ||
|
|
EditorBase::IsTextNode(nextEditableContentInBlock) ||
|
|
nextEditableContentInBlock->IsAnyOfHTMLElements(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 (NS_WARN_IF(!pointToPutCaret.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(pointToPutCaret, error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(!error.Failed(), "Selection::Collapse() failed");
|
|
return error.StealNSResult();
|
|
}
|
|
|
|
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 && !EditorBase::IsTextNode(editableContent) &&
|
|
!TextEditUtils::IsBreak(editableContent) &&
|
|
!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::IsTableElement(parentNode1);
|
|
parentNode1 = parentNode1->GetParentNode()) {
|
|
}
|
|
nsINode* parentNode2;
|
|
for (parentNode2 = &aNode2;
|
|
parentNode2 && !HTMLEditUtils::IsTableElement(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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
AutoTArray<OwningNonNull<nsINode>, 64> arrayOfEmptyNodes, arrayOfEmptyCites,
|
|
skipList;
|
|
|
|
// Check for empty nodes
|
|
for (; !postOrderIter.IsDone(); postOrderIter.Next()) {
|
|
OwningNonNull<nsINode> node = *postOrderIter.GetCurrentNode();
|
|
|
|
nsCOMPtr<nsINode> parent = node->GetParentNode();
|
|
|
|
size_t idx = skipList.IndexOf(node);
|
|
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 (parent) {
|
|
skipList[idx] = parent;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
bool isCandidate = false;
|
|
bool isMailCite = false;
|
|
if (node->IsElement()) {
|
|
if (node->IsHTMLElement(nsGkAtoms::body)) {
|
|
// Don't delete the body
|
|
} else if ((isMailCite = HTMLEditUtils::IsMailCite(node)) ||
|
|
node->IsHTMLElement(nsGkAtoms::a) ||
|
|
HTMLEditUtils::IsInlineStyle(node) ||
|
|
HTMLEditUtils::IsList(node) ||
|
|
node->IsHTMLElement(nsGkAtoms::div)) {
|
|
// Only consider certain nodes to be empty for purposes of removal
|
|
isCandidate = true;
|
|
} else if (HTMLEditUtils::IsFormatNode(node) ||
|
|
HTMLEditUtils::IsListItem(node) ||
|
|
node->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(*node->AsContent());
|
|
}
|
|
}
|
|
|
|
bool isEmptyNode = false;
|
|
if (isCandidate) {
|
|
// We delete mailcites even if they have a solo br in them. Other
|
|
// nodes we require to be empty.
|
|
nsresult rv = IsEmptyNode(node, &isEmptyNode, isMailCite, true);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
if (isEmptyNode) {
|
|
if (isMailCite) {
|
|
// mailcites go on a separate list from other empty nodes
|
|
arrayOfEmptyCites.AppendElement(*node);
|
|
} else {
|
|
arrayOfEmptyNodes.AppendElement(*node);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!isEmptyNode && parent) {
|
|
// put parent on skip list
|
|
skipList.AppendElement(*parent);
|
|
}
|
|
}
|
|
|
|
// now delete the empty nodes
|
|
for (OwningNonNull<nsINode>& delNode : arrayOfEmptyNodes) {
|
|
if (IsModifiableNode(delNode)) {
|
|
rv = DeleteNodeWithTransaction(*delNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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<nsINode>& delNode : arrayOfEmptyCites) {
|
|
bool isEmptyNode;
|
|
nsresult rv = IsEmptyNode(delNode, &isEmptyNode, false, true);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
if (!isEmptyNode) {
|
|
// We are deleting a cite that has just a `<br>`. We want to delete cite,
|
|
// but preserve `<br>`.
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(EditorDOMPoint(delNode));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
rv = DeleteNodeWithTransaction(*delNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
bool HTMLEditor::StartOrEndOfSelectionRangesIsIn(nsIContent& aContent) const {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
for (uint32_t i = 0; i < SelectionRefPtr()->RangeCount(); ++i) {
|
|
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.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
if (NS_WARN_IF(!maybeLeftListContent->IsElement())) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
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::IsList(pointToInsertListItem.GetContainer()) &&
|
|
HTMLEditUtils::IsListItem(&aListItemElement)) {
|
|
rv = RemoveBlockContainerWithTransaction(aListItemElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
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?
|
|
return LiftUpListItemElement(aListItemElement,
|
|
LiftUpFromAllParentListElements::Yes);
|
|
}
|
|
|
|
nsresult HTMLEditor::DestroyListStructureRecursively(Element& aListElement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(HTMLEditUtils::IsList(&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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (HTMLEditUtils::IsList(child)) {
|
|
nsresult rv =
|
|
DestroyListStructureRecursively(MOZ_KnownLive(*child->AsElement()));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// Delete the now-empty list
|
|
nsresult rv = RemoveBlockContainerWithTransaction(aListElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
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) {
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->Collapse(RawRangeBoundary(bodyOrDocumentElement, 0),
|
|
ignoredError);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"Selection::Collapse() with start of editing host 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) {
|
|
IgnoredErrorResult ignoredError;
|
|
SelectionRefPtr()->Collapse(RawRangeBoundary(bodyOrDocumentElement, 0),
|
|
ignoredError);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(
|
|
!ignoredError.Failed(),
|
|
"Selection::Collapse() with start of editing host failed, but ignored");
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::InsertPaddingBRElementForEmptyLastLineIfNeeded(
|
|
Element& aElement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (!HTMLEditor::NodeIsBlockStatic(aElement)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
bool isEmpty = false;
|
|
nsresult rv = IsEmptyNode(&aElement, &isEmpty);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
if (!isEmpty) {
|
|
return NS_OK;
|
|
}
|
|
|
|
CreateElementResult createBRResult =
|
|
InsertPaddingBRElementForEmptyLastLineWithTransaction(
|
|
EditorDOMPoint(&aElement, 0));
|
|
NS_WARNING_ASSERTION(createBRResult.Succeeded(),
|
|
"Failed to create padding <br> element");
|
|
return createBRResult.Rv();
|
|
}
|
|
|
|
nsresult HTMLEditor::InsertBRElementIfEmptyBlockElement(Element& aElement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
if (!HTMLEditor::NodeIsBlockStatic(aElement)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
bool isEmpty;
|
|
nsresult rv = IsEmptyNode(&aElement, &isEmpty);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
if (!isEmpty) {
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<Element> brElement =
|
|
InsertBRElementWithTransaction(EditorDOMPoint(&aElement, 0));
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
NS_WARNING_ASSERTION(brElement, "InsertBRElementWithTransaction() failed");
|
|
return brElement ? NS_OK : NS_ERROR_FAILURE;
|
|
}
|
|
|
|
void HTMLEditRules::DidCreateNode(Element& aNewElement) {
|
|
if (!mInitialized || !mHTMLEditor) {
|
|
return; // We've been detached from editor, ignore.
|
|
}
|
|
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return;
|
|
}
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
if (!HTMLEditorRef().EditSubActionDataRef().mAdjustChangedRangeFromListener) {
|
|
return; // Temporarily disabled by edit sub-action handler.
|
|
}
|
|
|
|
DebugOnly<nsresult> rv =
|
|
HTMLEditorRef().TopLevelEditSubActionDataRef().AddNodeToChangedRange(
|
|
HTMLEditorRef(), aNewElement);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "AddNodeToChangedRange() failed");
|
|
}
|
|
|
|
void HTMLEditRules::DidInsertNode(nsIContent& aContent) {
|
|
if (!mInitialized || !mHTMLEditor) {
|
|
return; // We've been detached from editor, ignore.
|
|
}
|
|
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return;
|
|
}
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
if (!HTMLEditorRef().EditSubActionDataRef().mAdjustChangedRangeFromListener) {
|
|
return; // Temporarily disabled by edit sub-action handler.
|
|
}
|
|
|
|
DebugOnly<nsresult> rv =
|
|
HTMLEditorRef().TopLevelEditSubActionDataRef().AddNodeToChangedRange(
|
|
HTMLEditorRef(), aContent);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "AddNodeToChangedRange() failed");
|
|
}
|
|
|
|
void HTMLEditRules::WillDeleteNode(nsINode& aChild) {
|
|
if (!mInitialized || !mHTMLEditor) {
|
|
return; // We've been detached from editor, ignore.
|
|
}
|
|
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return;
|
|
}
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
if (!HTMLEditorRef().EditSubActionDataRef().mAdjustChangedRangeFromListener) {
|
|
return; // Temporarily disabled by edit sub-action handler.
|
|
}
|
|
|
|
DebugOnly<nsresult> rv =
|
|
HTMLEditorRef().TopLevelEditSubActionDataRef().AddNodeToChangedRange(
|
|
HTMLEditorRef(), aChild);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "AddNodeToChangedRange() failed");
|
|
}
|
|
|
|
void HTMLEditRules::DidSplitNode(nsINode& aExistingRightNode,
|
|
nsINode& aNewLeftNode) {
|
|
if (!mInitialized || !mHTMLEditor) {
|
|
return; // We've been detached from editor, ignore.
|
|
}
|
|
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return;
|
|
}
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
if (!HTMLEditorRef().EditSubActionDataRef().mAdjustChangedRangeFromListener) {
|
|
return; // Temporarily disabled by edit sub-action handler.
|
|
}
|
|
|
|
DebugOnly<nsresult> rv =
|
|
HTMLEditorRef().TopLevelEditSubActionDataRef().AddRangeToChangedRange(
|
|
HTMLEditorRef(), EditorRawDOMPoint(&aNewLeftNode, 0),
|
|
EditorRawDOMPoint(&aExistingRightNode, 0));
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "AddRangeToChangedRange() failed");
|
|
}
|
|
|
|
void HTMLEditRules::WillJoinNodes(nsINode& aLeftNode, nsINode& aRightNode) {
|
|
if (!mInitialized || !mHTMLEditor) {
|
|
return; // We've been detached from editor, ignore.
|
|
}
|
|
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return;
|
|
}
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
if (!HTMLEditorRef().EditSubActionDataRef().mAdjustChangedRangeFromListener) {
|
|
return; // Temporarily disabled by edit sub-action handler.
|
|
}
|
|
|
|
// remember split point
|
|
HTMLEditorRef().EditSubActionDataRef().mJoinedLeftNodeLength =
|
|
aLeftNode.Length();
|
|
}
|
|
|
|
void HTMLEditRules::DidJoinNodes(nsINode& aLeftNode, nsINode& aRightNode) {
|
|
if (!mInitialized || !mHTMLEditor) {
|
|
return; // We've been detached from editor, ignore.
|
|
}
|
|
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return;
|
|
}
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
if (!HTMLEditorRef().EditSubActionDataRef().mAdjustChangedRangeFromListener) {
|
|
return; // Temporarily disabled by edit sub-action handler.
|
|
}
|
|
|
|
DebugOnly<nsresult> rv =
|
|
HTMLEditorRef().TopLevelEditSubActionDataRef().AddPointToChangedRange(
|
|
HTMLEditorRef(),
|
|
EditorRawDOMPoint(
|
|
&aRightNode,
|
|
HTMLEditorRef().EditSubActionDataRef().mJoinedLeftNodeLength));
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "AddPointToChangedRange() failed");
|
|
}
|
|
|
|
void HTMLEditRules::DidInsertText(nsINode& aTextNode, int32_t aOffset,
|
|
const nsAString& aString) {
|
|
if (!mInitialized || !mHTMLEditor) {
|
|
return; // We've been detached from editor, ignore.
|
|
}
|
|
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return;
|
|
}
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
if (!HTMLEditorRef().EditSubActionDataRef().mAdjustChangedRangeFromListener) {
|
|
return; // Temporarily disabled by edit sub-action handler.
|
|
}
|
|
|
|
DebugOnly<nsresult> rv =
|
|
HTMLEditorRef().TopLevelEditSubActionDataRef().AddRangeToChangedRange(
|
|
HTMLEditorRef(), EditorRawDOMPoint(&aTextNode, aOffset),
|
|
EditorRawDOMPoint(&aTextNode, aOffset + aString.Length()));
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "AddRangeToChangedRange() failed");
|
|
}
|
|
|
|
void HTMLEditRules::DidDeleteText(nsINode& aTextNode, int32_t aOffset,
|
|
int32_t aLength) {
|
|
if (!mInitialized || !mHTMLEditor) {
|
|
return; // We've been detached from editor, ignore.
|
|
}
|
|
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return;
|
|
}
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
if (!HTMLEditorRef().EditSubActionDataRef().mAdjustChangedRangeFromListener) {
|
|
return; // Temporarily disabled by edit sub-action handler.
|
|
}
|
|
|
|
DebugOnly<nsresult> rv =
|
|
HTMLEditorRef().TopLevelEditSubActionDataRef().AddPointToChangedRange(
|
|
HTMLEditorRef(), EditorRawDOMPoint(&aTextNode, aOffset));
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "AddPointToChangedRange() failed");
|
|
}
|
|
|
|
void HTMLEditRules::WillDeleteSelection() {
|
|
if (!mInitialized || !mHTMLEditor) {
|
|
return; // We've been detached from editor, ignore.
|
|
}
|
|
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return;
|
|
}
|
|
|
|
AutoSafeEditorData setData(*this, *mHTMLEditor);
|
|
|
|
if (!HTMLEditorRef().EditSubActionDataRef().mAdjustChangedRangeFromListener) {
|
|
return; // Temporarily disabled by edit sub-action handler.
|
|
}
|
|
|
|
// XXX Looks like that this is wrong. We delete multiple selection ranges
|
|
// once, but this adds only first range into the changed range.
|
|
DebugOnly<nsresult> rv =
|
|
HTMLEditorRef().TopLevelEditSubActionDataRef().AddRangeToChangedRange(
|
|
HTMLEditorRef(), EditorBase::GetStartPoint(*SelectionRefPtr()),
|
|
EditorBase::GetStartPoint(*SelectionRefPtr()));
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "AddRangeToChangedRange() failed");
|
|
}
|
|
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
rv = RemoveContainerWithTransaction(centerElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (!HTMLEditor::NodeIsBlockStatic(*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_WARN_IF(NS_FAILED(rv))) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
} else {
|
|
nsAutoString dummyCssValue;
|
|
nsresult rv = mCSSEditUtils->RemoveCSSInlineStyle(
|
|
blockOrHRElement, nsGkAtoms::textAlign, dummyCssValue);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
if (!blockOrHRElement->IsHTMLElement(nsGkAtoms::table)) {
|
|
// unless this is a table, look at children
|
|
nsresult rv = RemoveAlignFromDescendants(
|
|
blockOrHRElement, aAlignType, EditTarget::OnlyDescendantsExceptTable);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::EnsureHardLineBeginsWithFirstChildOf(
|
|
Element& aRemovingContainerElement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
nsIContent* firstEditableChild =
|
|
GetFirstEditableChild(aRemovingContainerElement);
|
|
if (!firstEditableChild) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (HTMLEditor::NodeIsBlockStatic(*firstEditableChild) ||
|
|
firstEditableChild->IsHTMLElement(nsGkAtoms::br)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIContent* previousEditableContent =
|
|
GetPriorHTMLSibling(&aRemovingContainerElement);
|
|
if (!previousEditableContent) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (HTMLEditor::NodeIsBlockStatic(*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;
|
|
}
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::EnsureHardLineEndsWithLastChildOf(
|
|
Element& aRemovingContainerElement) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
nsIContent* firstEditableContent =
|
|
GetLastEditableChild(aRemovingContainerElement);
|
|
if (!firstEditableContent) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (HTMLEditor::NodeIsBlockStatic(*firstEditableContent) ||
|
|
firstEditableContent->IsHTMLElement(nsGkAtoms::br)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIContent* nextEditableContent =
|
|
GetPriorHTMLSibling(&aRemovingContainerElement);
|
|
if (!nextEditableContent) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (HTMLEditor::NodeIsBlockStatic(*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;
|
|
}
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult HTMLEditor::SetBlockElementAlign(Element& aBlockOrHRElement,
|
|
const nsAString& aAlignType,
|
|
EditTarget aEditTarget) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
MOZ_ASSERT(HTMLEditor::NodeIsBlockStatic(aBlockOrHRElement) ||
|
|
aBlockOrHRElement.IsHTMLElement(nsGkAtoms::hr));
|
|
MOZ_ASSERT(IsCSSEnabled() ||
|
|
HTMLEditUtils::SupportsAlignAttr(aBlockOrHRElement));
|
|
|
|
if (!aBlockOrHRElement.IsHTMLElement(nsGkAtoms::table)) {
|
|
nsresult rv =
|
|
RemoveAlignFromDescendants(aBlockOrHRElement, aAlignType, aEditTarget);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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),
|
|
"SetAttributeOrEquivalent() failed to set `align` attribute or property");
|
|
return rv;
|
|
}
|
|
|
|
nsresult HTMLEditor::ChangeMarginStart(Element& aElement,
|
|
ChangeMargin aChangeMargin) {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
nsStaticAtom& marginProperty = MarginPropertyAtomForIndent(aElement);
|
|
nsAutoString value;
|
|
CSSEditUtils::GetSpecifiedProperty(aElement, marginProperty, value);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
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) {
|
|
nsAutoString newValue;
|
|
newValue.AppendFloat(f);
|
|
newValue.Append(nsDependentAtomString(unit));
|
|
mCSSEditUtils->SetCSSProperty(aElement, MOZ_KnownLive(marginProperty),
|
|
newValue);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
mCSSEditUtils->RemoveCSSProperty(aElement, MOZ_KnownLive(marginProperty),
|
|
value);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
|
|
// 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),
|
|
"RemoveContainerWithTransaction() failed");
|
|
return rv;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::SetSelectionToAbsoluteAsSubAction() {
|
|
MOZ_ASSERT(IsTopLevelEditSubActionDataAvailable());
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this);
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eSetPositionToAbsolute, nsIEditor::eNext);
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (NS_WARN_IF(result.Failed()) || result.Canceled()) {
|
|
return result;
|
|
}
|
|
|
|
// FYI: Ignore cancel result of WillInsert().
|
|
nsresult rv = WillInsert();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "WillInsert() failed");
|
|
|
|
RefPtr<Element> focusElement = GetSelectionContainerElement();
|
|
if (focusElement && HTMLEditUtils::IsImage(focusElement)) {
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = std::move(focusElement);
|
|
return EditActionHandled();
|
|
}
|
|
|
|
if (!SelectionRefPtr()->IsCollapsed()) {
|
|
nsresult rv = MaybeExtendSelectionToHardLineEdgesForBlockEditAction();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
TopLevelEditSubActionDataRef().mNewBlockElement = std::move(divElement);
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"SetPositionToAbsoluteOrStatic() failed");
|
|
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 contruct a list of nodes to act on.
|
|
AutoTArray<OwningNonNull<nsINode>, 64> arrayOfNodes;
|
|
nsresult rv = SplitInlinesAndCollectEditTargetNodes(
|
|
arrayOfRanges, arrayOfNodes, EditSubAction::eSetPositionToAbsolute,
|
|
CollectNonEditableNodes::Yes);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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(arrayOfNodes)) {
|
|
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 (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
RefPtr<Element> newDivElement = CreateNodeWithTransaction(
|
|
*nsGkAtoms::div, splitNodeResult.SplitPoint());
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(!newDivElement)) {
|
|
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 (!arrayOfNodes.IsEmpty()) {
|
|
OwningNonNull<nsINode> curNode = arrayOfNodes[0];
|
|
rv = DeleteNodeWithTransaction(*curNode);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
arrayOfNodes.RemoveElementAt(0);
|
|
}
|
|
// Don't restore the selection
|
|
restoreSelectionLater.Abort();
|
|
ErrorResult error;
|
|
SelectionRefPtr()->Collapse(RawRangeBoundary(newDivElement, 0), error);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
error.SuppressException();
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
*aTargetElement = std::move(newDivElement);
|
|
NS_WARNING_ASSERTION(!error.Failed(), "Selection::Collapse() failed");
|
|
return error.StealNSResult();
|
|
}
|
|
|
|
// `<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<nsINode>& curNode : arrayOfNodes) {
|
|
// Here's where we actually figure out what to do.
|
|
EditorDOMPoint atCurNode(curNode);
|
|
if (NS_WARN_IF(!atCurNode.IsSet())) {
|
|
return NS_ERROR_FAILURE; // XXX not continue??
|
|
}
|
|
|
|
// Ignore all non-editable nodes. Leave them be.
|
|
if (!IsEditable(curNode)) {
|
|
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::IsList(atCurNode.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(curNode) : nullptr;
|
|
if (!createdListElement ||
|
|
(previousEditableContent &&
|
|
previousEditableContent != createdListElement)) {
|
|
nsAtom* ULOrOLOrDLTagName =
|
|
atCurNode.GetContainer()->NodeInfo()->NameAtom();
|
|
SplitNodeResult splitNodeResult =
|
|
MaybeSplitAncestorsForInsertWithTransaction(
|
|
MOZ_KnownLive(*ULOrOLOrDLTagName), atCurNode);
|
|
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.
|
|
rv = MoveNodeToEndWithTransaction(MOZ_KnownLive(*curNode->AsContent()),
|
|
*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 =
|
|
curNode->IsContent()
|
|
? GetNearestAncestorListItemElement(*curNode->AsContent())
|
|
: nullptr) {
|
|
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 curNode 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.
|
|
rv = MoveNodeToEndWithTransaction(*listItemElement, *createdListElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
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 (curNode->IsHTMLElement(nsGkAtoms::div)) {
|
|
targetDivElement = curNode->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,
|
|
atCurNode);
|
|
if (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
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;
|
|
}
|
|
}
|
|
|
|
rv = MoveNodeToEndWithTransaction(MOZ_KnownLive(*curNode->AsContent()),
|
|
*targetDivElement);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return NS_ERROR_EDITOR_DESTROYED;
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
// Forget createdListElement, if any
|
|
createdListElement = nullptr;
|
|
}
|
|
*aTargetElement = std::move(targetDivElement);
|
|
return NS_OK;
|
|
}
|
|
|
|
EditActionResult HTMLEditor::SetSelectionToStaticAsSubAction() {
|
|
MOZ_ASSERT(IsEditActionDataAvailable());
|
|
|
|
AutoPlaceholderBatch treatAsOneTransaction(*this);
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this, EditSubAction::eSetPositionToStatic, nsIEditor::eNext);
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (NS_WARN_IF(result.Failed()) || result.Canceled()) {
|
|
return result;
|
|
}
|
|
|
|
// FYI: Ignore cancel result of WillInsert().
|
|
nsresult rv = WillInsert();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionResult(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "WillInsert() failed, but ignored");
|
|
|
|
RefPtr<Element> element = GetAbsolutelyPositionedSelectionContainer();
|
|
if (NS_WARN_IF(!element)) {
|
|
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_WARN_IF(NS_FAILED(rv))) {
|
|
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);
|
|
AutoEditSubActionNotifier startToHandleEditSubAction(
|
|
*this,
|
|
aChange < 0 ? EditSubAction::eDecreaseZIndex
|
|
: EditSubAction::eIncreaseZIndex,
|
|
nsIEditor::eNext);
|
|
|
|
EditActionResult result = CanHandleHTMLEditSubAction();
|
|
if (NS_WARN_IF(result.Failed()) || result.Canceled()) {
|
|
return result;
|
|
}
|
|
|
|
// FYI: Ignore cancel result of WillInsert().
|
|
nsresult rv = WillInsert();
|
|
if (NS_WARN_IF(rv == NS_ERROR_EDITOR_DESTROYED)) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "WillInsert() failed, but ignored");
|
|
|
|
RefPtr<Element> absolutelyPositionedElement =
|
|
GetAbsolutelyPositionedSelectionContainer();
|
|
if (NS_WARN_IF(!absolutelyPositionedElement)) {
|
|
return EditActionHandled(NS_ERROR_FAILURE);
|
|
}
|
|
|
|
{
|
|
AutoSelectionRestorer restoreSelectionLater(*this);
|
|
|
|
int32_t zIndex;
|
|
nsresult rv = RelativeChangeElementZIndex(*absolutelyPositionedElement,
|
|
aChange, &zIndex);
|
|
if (NS_WARN_IF(Destroyed())) {
|
|
return EditActionHandled(NS_ERROR_EDITOR_DESTROYED);
|
|
}
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditActionHandled(rv);
|
|
}
|
|
}
|
|
|
|
// Restoring Selection might cause destroying the HTML editor.
|
|
return NS_WARN_IF(Destroyed()) ? EditActionHandled(NS_ERROR_EDITOR_DESTROYED)
|
|
: EditActionHandled(NS_OK);
|
|
}
|
|
|
|
nsresult HTMLEditRules::DocumentModified() {
|
|
nsContentUtils::AddScriptRunner(
|
|
NewRunnableMethod("HTMLEditRules::DocumentModifiedWorker", this,
|
|
&HTMLEditRules::DocumentModifiedWorker));
|
|
// Be aware, if DocumentModifiedWorker() is called synchronously, the
|
|
// editor might have been destroyed here.
|
|
return NS_OK;
|
|
}
|
|
|
|
void HTMLEditRules::DocumentModifiedWorker() {
|
|
if (NS_WARN_IF(!CanHandleEditAction())) {
|
|
return;
|
|
}
|
|
|
|
RefPtr<HTMLEditor> htmlEditor(mHTMLEditor);
|
|
nsresult rv = htmlEditor->OnModifyDocument();
|
|
NS_WARNING_ASSERTION(NS_SUCCEEDED(rv),
|
|
"HTMLEditor::OnModifyDocument() failed");
|
|
Unused << rv;
|
|
}
|
|
|
|
} // namespace mozilla
|