зеркало из https://github.com/mozilla/gecko-dev.git
5140 строки
160 KiB
C++
5140 строки
160 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "mozilla/HTMLEditor.h"
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#include "mozilla/ComposerCommandsUpdater.h"
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#include "mozilla/DebugOnly.h"
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#include "mozilla/EditAction.h"
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#include "mozilla/EditorDOMPoint.h"
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#include "mozilla/EventStates.h"
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#include "mozilla/mozInlineSpellChecker.h"
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#include "mozilla/Telemetry.h"
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#include "mozilla/TextEvents.h"
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#include "nsCRT.h"
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#include "nsUnicharUtils.h"
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#include "HTMLEditorEventListener.h"
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#include "HTMLEditRules.h"
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#include "HTMLEditUtils.h"
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#include "HTMLURIRefObject.h"
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#include "StyleSheetTransactions.h"
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#include "TextEditUtils.h"
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#include "TypeInState.h"
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#include "nsHTMLDocument.h"
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#include "nsIDOMDocument.h"
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#include "nsIDocumentInlines.h"
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#include "nsISelectionController.h"
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#include "nsILinkHandler.h"
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#include "nsIInlineSpellChecker.h"
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#include "mozilla/css/Loader.h"
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#include "nsIContent.h"
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#include "nsIContentIterator.h"
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#include "nsIMutableArray.h"
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#include "nsContentUtils.h"
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#include "nsIDocumentEncoder.h"
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#include "nsGenericHTMLElement.h"
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#include "nsIPresShell.h"
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#include "nsPresContext.h"
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#include "nsFocusManager.h"
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#include "nsPIDOMWindow.h"
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// netwerk
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#include "nsIURI.h"
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#include "nsNetUtil.h"
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// Misc
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#include "mozilla/EditorUtils.h"
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#include "HTMLEditorObjectResizerUtils.h"
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#include "TextEditorTest.h"
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#include "WSRunObject.h"
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#include "nsGkAtoms.h"
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#include "nsIWidget.h"
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#include "nsIFrame.h"
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#include "mozilla/dom/Selection.h"
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#include "mozilla/dom/DocumentFragment.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/Event.h"
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#include "mozilla/dom/EventTarget.h"
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#include "mozilla/dom/HTMLBodyElement.h"
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#include "nsElementTable.h"
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#include "nsTextFragment.h"
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#include "nsContentList.h"
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#include "mozilla/StyleSheet.h"
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#include "mozilla/StyleSheetInlines.h"
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namespace mozilla {
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using namespace dom;
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using namespace widget;
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// Some utilities to handle overloading of "A" tag for link and named anchor.
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static bool
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IsLinkTag(const nsString& s)
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{
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return s.EqualsIgnoreCase("href");
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}
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static bool
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IsNamedAnchorTag(const nsString& s)
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{
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return s.EqualsIgnoreCase("anchor") || s.EqualsIgnoreCase("namedanchor");
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}
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template EditorDOMPoint
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HTMLEditor::InsertNodeIntoProperAncestorWithTransaction(
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nsIContent& aNode,
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const EditorDOMPoint& aPointToInsert,
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SplitAtEdges aSplitAtEdges);
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template EditorDOMPoint
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HTMLEditor::InsertNodeIntoProperAncestorWithTransaction(
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nsIContent& aNode,
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const EditorRawDOMPoint& aPointToInsert,
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SplitAtEdges aSplitAtEdges);
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HTMLEditor::HTMLEditor()
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: mCRInParagraphCreatesParagraph(false)
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, mCSSAware(false)
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, mSelectedCellIndex(0)
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, mHasShownResizers(false)
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, mIsObjectResizingEnabled(true)
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, mIsResizing(false)
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, mPreserveRatio(false)
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, mResizedObjectIsAnImage(false)
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, mIsAbsolutelyPositioningEnabled(true)
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, mResizedObjectIsAbsolutelyPositioned(false)
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, mHasShownGrabber(false)
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, mGrabberClicked(false)
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, mIsMoving(false)
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, mSnapToGridEnabled(false)
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, mHasShownInlineTableEditor(false)
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, mIsInlineTableEditingEnabled(true)
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, mOriginalX(0)
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, mOriginalY(0)
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, mResizedObjectX(0)
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, mResizedObjectY(0)
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, mResizedObjectWidth(0)
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, mResizedObjectHeight(0)
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, mResizedObjectMarginLeft(0)
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, mResizedObjectMarginTop(0)
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, mResizedObjectBorderLeft(0)
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, mResizedObjectBorderTop(0)
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, mXIncrementFactor(0)
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, mYIncrementFactor(0)
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, mWidthIncrementFactor(0)
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, mHeightIncrementFactor(0)
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, mResizerUsedCount(0)
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, mGrabberUsedCount(0)
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, mInlineTableEditorUsedCount(0)
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, mInfoXIncrement(20)
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, mInfoYIncrement(20)
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, mPositionedObjectX(0)
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, mPositionedObjectY(0)
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, mPositionedObjectWidth(0)
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, mPositionedObjectHeight(0)
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, mPositionedObjectMarginLeft(0)
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, mPositionedObjectMarginTop(0)
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, mPositionedObjectBorderLeft(0)
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, mPositionedObjectBorderTop(0)
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, mGridSize(0)
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, mDefaultParagraphSeparator(
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Preferences::GetBool("editor.use_div_for_default_newlines", true)
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? ParagraphSeparator::div : ParagraphSeparator::br)
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{
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mIsHTMLEditorClass = true;
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}
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HTMLEditor::~HTMLEditor()
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{
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if (mRules && mRules->AsHTMLEditRules()) {
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mRules->AsHTMLEditRules()->EndListeningToEditActions();
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}
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mTypeInState = nullptr;
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if (mLinkHandler && IsInitialized()) {
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nsCOMPtr<nsIPresShell> ps = GetPresShell();
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if (ps && ps->GetPresContext()) {
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ps->GetPresContext()->SetLinkHandler(mLinkHandler);
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}
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}
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RemoveEventListeners();
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HideAnonymousEditingUIs();
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Telemetry::Accumulate(
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Telemetry::HTMLEDITORS_WITH_RESIZERS,
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mHasShownResizers ? 1 : 0);
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if (mHasShownResizers) {
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Telemetry::Accumulate(
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Telemetry::HTMLEDITORS_WHOSE_RESIZERS_USED_BY_USER,
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mResizerUsedCount);
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}
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Telemetry::Accumulate(
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Telemetry::HTMLEDITORS_WITH_ABSOLUTE_POSITIONER,
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mHasShownGrabber ? 1 : 0);
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if (mHasShownGrabber) {
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Telemetry::Accumulate(
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Telemetry::HTMLEDITORS_WHOSE_ABSOLUTE_POSITIONER_USED_BY_USER,
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mGrabberUsedCount);
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}
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Telemetry::Accumulate(
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Telemetry::HTMLEDITORS_WITH_INLINE_TABLE_EDITOR,
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mHasShownInlineTableEditor ? 1 : 0);
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if (mHasShownInlineTableEditor) {
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Telemetry::Accumulate(
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Telemetry::HTMLEDITORS_WHOSE_INLINE_TABLE_EDITOR_USED_BY_USER,
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mInlineTableEditorUsedCount);
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}
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}
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void
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HTMLEditor::HideAnonymousEditingUIs()
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{
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if (mAbsolutelyPositionedObject) {
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HideGrabber();
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}
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if (mInlineEditedCell) {
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HideInlineTableEditingUI();
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}
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if (mResizedObject) {
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HideResizers();
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}
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}
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NS_IMPL_CYCLE_COLLECTION_CLASS(HTMLEditor)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(HTMLEditor, TextEditor)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mTypeInState)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mComposerCommandsUpdater)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mStyleSheets)
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tmp->HideAnonymousEditingUIs();
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mLinkHandler)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(HTMLEditor, TextEditor)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTypeInState)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mComposerCommandsUpdater)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mStyleSheets)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTopLeftHandle)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTopHandle)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mTopRightHandle)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mLeftHandle)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mRightHandle)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mBottomLeftHandle)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mBottomHandle)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mBottomRightHandle)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mActivatedHandle)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mResizingShadow)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mResizingInfo)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mResizedObject)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mMouseMotionListenerP)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mResizeEventListenerP)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAbsolutelyPositionedObject)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mGrabber)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mPositioningShadow)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mInlineEditedCell)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAddColumnBeforeButton)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mRemoveColumnButton)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAddColumnAfterButton)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAddRowBeforeButton)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mRemoveRowButton)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mAddRowAfterButton)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mLinkHandler)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_ADDREF_INHERITED(HTMLEditor, EditorBase)
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NS_IMPL_RELEASE_INHERITED(HTMLEditor, EditorBase)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(HTMLEditor)
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NS_INTERFACE_MAP_ENTRY(nsIHTMLEditor)
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NS_INTERFACE_MAP_ENTRY(nsIHTMLObjectResizer)
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NS_INTERFACE_MAP_ENTRY(nsIHTMLAbsPosEditor)
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NS_INTERFACE_MAP_ENTRY(nsIHTMLInlineTableEditor)
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NS_INTERFACE_MAP_ENTRY(nsITableEditor)
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NS_INTERFACE_MAP_ENTRY(nsIEditorStyleSheets)
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NS_INTERFACE_MAP_ENTRY(nsICSSLoaderObserver)
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NS_INTERFACE_MAP_ENTRY(nsIMutationObserver)
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NS_INTERFACE_MAP_END_INHERITING(TextEditor)
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nsresult
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HTMLEditor::Init(nsIDocument& aDoc,
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Element* aRoot,
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nsISelectionController* aSelCon,
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uint32_t aFlags,
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const nsAString& aInitialValue)
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{
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MOZ_ASSERT(aInitialValue.IsEmpty(), "Non-empty initial values not supported");
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nsresult rulesRv = NS_OK;
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{
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// block to scope AutoEditInitRulesTrigger
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AutoEditInitRulesTrigger rulesTrigger(this, rulesRv);
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// Init the plaintext editor
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nsresult rv = TextEditor::Init(aDoc, aRoot, nullptr, aFlags, aInitialValue);
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if (NS_FAILED(rv)) {
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return rv;
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}
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// Init mutation observer
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aDoc.AddMutationObserverUnlessExists(this);
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if (!mRootElement) {
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UpdateRootElement();
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}
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// disable Composer-only features
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if (IsMailEditor()) {
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SetAbsolutePositioningEnabled(false);
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SetSnapToGridEnabled(false);
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}
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// Init the HTML-CSS utils
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mCSSEditUtils = MakeUnique<CSSEditUtils>(this);
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// disable links
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nsCOMPtr<nsIPresShell> presShell = GetPresShell();
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NS_ENSURE_TRUE(presShell, NS_ERROR_FAILURE);
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nsPresContext *context = presShell->GetPresContext();
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NS_ENSURE_TRUE(context, NS_ERROR_NULL_POINTER);
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if (!IsPlaintextEditor() && !IsInteractionAllowed()) {
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mLinkHandler = context->GetLinkHandler();
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context->SetLinkHandler(nullptr);
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}
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// init the type-in state
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mTypeInState = new TypeInState();
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if (!IsInteractionAllowed()) {
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// ignore any errors from this in case the file is missing
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AddOverrideStyleSheet(NS_LITERAL_STRING("resource://gre/res/EditorOverride.css"));
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}
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}
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NS_ENSURE_SUCCESS(rulesRv, rulesRv);
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return NS_OK;
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}
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NS_IMETHODIMP
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HTMLEditor::PreDestroy(bool aDestroyingFrames)
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{
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if (mDidPreDestroy) {
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return NS_OK;
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}
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nsCOMPtr<nsIDocument> document = GetDocument();
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if (document) {
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document->RemoveMutationObserver(this);
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}
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while (!mStyleSheetURLs.IsEmpty()) {
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RemoveOverrideStyleSheet(mStyleSheetURLs[0]);
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}
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// Clean up after our anonymous content -- we don't want these nodes to
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// stay around (which they would, since the frames have an owning reference).
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HideAnonymousEditingUIs();
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return TextEditor::PreDestroy(aDestroyingFrames);
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}
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NS_IMETHODIMP
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HTMLEditor::NotifySelectionChanged(nsIDocument* aDocument,
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Selection* aSelection,
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int16_t aReason)
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{
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if (NS_WARN_IF(!aDocument) || NS_WARN_IF(!aSelection)) {
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return NS_ERROR_INVALID_ARG;
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}
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if (mTypeInState) {
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RefPtr<TypeInState> typeInState = mTypeInState;
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typeInState->OnSelectionChange(*aSelection);
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// We used a class which derived from nsISelectionListener to call
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// HTMLEditor::CheckSelectionStateForAnonymousButtons(). The lifetime of
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// the class was exactly same as mTypeInState. So, call it only when
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// mTypeInState is not nullptr.
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if ((aReason & (nsISelectionListener::MOUSEDOWN_REASON |
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nsISelectionListener::KEYPRESS_REASON |
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nsISelectionListener::SELECTALL_REASON)) && aSelection) {
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// the selection changed and we need to check if we have to
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// hide and/or redisplay resizing handles
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// FYI: This is an XPCOM method. So, the caller, Selection, guarantees
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// the lifetime of this instance. So, don't need to grab this with
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// local variable.
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CheckSelectionStateForAnonymousButtons(aSelection);
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}
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}
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if (mComposerCommandsUpdater) {
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RefPtr<ComposerCommandsUpdater> updater = mComposerCommandsUpdater;
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updater->OnSelectionChange();
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}
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return EditorBase::NotifySelectionChanged(aDocument, aSelection, aReason);
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}
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void
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HTMLEditor::UpdateRootElement()
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{
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// Use the HTML documents body element as the editor root if we didn't
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// get a root element during initialization.
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mRootElement = GetBodyElement();
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if (!mRootElement) {
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nsCOMPtr<nsIDocument> doc = GetDocument();
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if (doc) {
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// If there is no HTML body element,
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// we should use the document root element instead.
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mRootElement = doc->GetDocumentElement();
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}
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// else leave it null, for lack of anything better.
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}
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}
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already_AddRefed<nsIContent>
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HTMLEditor::FindSelectionRoot(nsINode* aNode)
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{
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if (NS_WARN_IF(!aNode)) {
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return nullptr;
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}
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MOZ_ASSERT(aNode->IsDocument() || aNode->IsContent(),
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"aNode must be content or document node");
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nsCOMPtr<nsIDocument> doc = aNode->GetComposedDoc();
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if (!doc) {
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return nullptr;
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}
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nsCOMPtr<nsIContent> content;
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if (aNode->IsInUncomposedDoc() &&
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(doc->HasFlag(NODE_IS_EDITABLE) || !aNode->IsContent())) {
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content = doc->GetRootElement();
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return content.forget();
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}
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content = aNode->AsContent();
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// XXX If we have readonly flag, shouldn't return the element which has
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// contenteditable="true"? However, such case isn't there without chrome
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// permission script.
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if (IsReadonly()) {
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// We still want to allow selection in a readonly editor.
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content = do_QueryInterface(GetRoot());
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return content.forget();
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}
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if (!content->HasFlag(NODE_IS_EDITABLE)) {
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// If the content is in read-write state but is not editable itself,
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// return it as the selection root.
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if (content->IsElement() &&
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content->AsElement()->State().HasState(NS_EVENT_STATE_MOZ_READWRITE)) {
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return content.forget();
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}
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return nullptr;
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}
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// For non-readonly editors we want to find the root of the editable subtree
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// containing aContent.
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content = content->GetEditingHost();
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return content.forget();
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}
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void
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HTMLEditor::CreateEventListeners()
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{
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// Don't create the handler twice
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if (!mEventListener) {
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mEventListener = new HTMLEditorEventListener();
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}
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}
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nsresult
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HTMLEditor::InstallEventListeners()
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{
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if (NS_WARN_IF(!IsInitialized()) || NS_WARN_IF(!mEventListener)) {
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return NS_ERROR_NOT_INITIALIZED;
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}
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// NOTE: HTMLEditor doesn't need to initialize mEventTarget here because
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// the target must be document node and it must be referenced as weak pointer.
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HTMLEditorEventListener* listener =
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reinterpret_cast<HTMLEditorEventListener*>(mEventListener.get());
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return listener->Connect(this);
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}
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void
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HTMLEditor::RemoveEventListeners()
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{
|
|
if (!IsInitialized()) {
|
|
return;
|
|
}
|
|
|
|
RefPtr<EventTarget> target = GetDOMEventTarget();
|
|
|
|
if (target) {
|
|
// Both mMouseMotionListenerP and mResizeEventListenerP can be
|
|
// registerd with other targets than the DOM event receiver that
|
|
// we can reach from here. But nonetheless, unregister the event
|
|
// listeners with the DOM event reveiver (if it's registerd with
|
|
// other targets, it'll get unregisterd once the target goes
|
|
// away).
|
|
|
|
if (mMouseMotionListenerP) {
|
|
// mMouseMotionListenerP might be registerd either as bubbling or
|
|
// capturing, unregister by both.
|
|
target->RemoveEventListener(NS_LITERAL_STRING("mousemove"),
|
|
mMouseMotionListenerP, false);
|
|
target->RemoveEventListener(NS_LITERAL_STRING("mousemove"),
|
|
mMouseMotionListenerP, true);
|
|
}
|
|
|
|
if (mResizeEventListenerP) {
|
|
target->RemoveEventListener(NS_LITERAL_STRING("resize"),
|
|
mResizeEventListenerP, false);
|
|
}
|
|
}
|
|
|
|
mMouseMotionListenerP = nullptr;
|
|
mResizeEventListenerP = nullptr;
|
|
|
|
TextEditor::RemoveEventListeners();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::SetFlags(uint32_t aFlags)
|
|
{
|
|
nsresult rv = TextEditor::SetFlags(aFlags);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Sets mCSSAware to correspond to aFlags. This toggles whether CSS is
|
|
// used to style elements in the editor. Note that the editor is only CSS
|
|
// aware by default in Composer and in the mail editor.
|
|
mCSSAware = !NoCSS() && !IsMailEditor();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::InitRules()
|
|
{
|
|
if (!mRules) {
|
|
// instantiate the rules for the html editor
|
|
mRules = new HTMLEditRules();
|
|
}
|
|
return mRules->Init(this);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::BeginningOfDocument()
|
|
{
|
|
return MaybeCollapseSelectionAtFirstEditableNode(false);
|
|
}
|
|
|
|
void
|
|
HTMLEditor::InitializeSelectionAncestorLimit(Selection& aSelection,
|
|
nsIContent& aAncestorLimit)
|
|
{
|
|
// Hack for initializing selection.
|
|
// HTMLEditor::MaybeCollapseSelectionAtFirstEditableNode() will try to
|
|
// collapse selection at first editable text node or inline element which
|
|
// cannot have text nodes as its children. However, selection has already
|
|
// set into the new editing host by user, we should not change it. For
|
|
// solving this issue, we should do nothing if selection range is in active
|
|
// editing host except it's not collapsed at start of the editing host since
|
|
// aSelection.SetAncestorLimiter(aAncestorLimit) will collapse selection
|
|
// at start of the new limiter if focus node of aSelection is outside of the
|
|
// editing host. However, we need to check here if selection is already
|
|
// collapsed at start of the editing host because it's possible JS to do it.
|
|
// In such case, we should not modify selection with calling
|
|
// MaybeCollapseSelectionAtFirstEditableNode().
|
|
|
|
// Basically, we should try to collapse selection at first editable node
|
|
// in HTMLEditor.
|
|
bool tryToCollapseSelectionAtFirstEditableNode = true;
|
|
if (aSelection.RangeCount() == 1 && aSelection.IsCollapsed()) {
|
|
Element* editingHost = GetActiveEditingHost();
|
|
nsRange* range = aSelection.GetRangeAt(0);
|
|
if (range->GetStartContainer() == editingHost &&
|
|
!range->StartOffset()) {
|
|
// JS or user operation has already collapsed selection at start of
|
|
// the editing host. So, we don't need to try to change selection
|
|
// in this case.
|
|
tryToCollapseSelectionAtFirstEditableNode = false;
|
|
}
|
|
}
|
|
|
|
EditorBase::InitializeSelectionAncestorLimit(aSelection, aAncestorLimit);
|
|
|
|
// XXX Do we need to check if we still need to change selection? E.g.,
|
|
// we could have already lost focus while we're changing the ancestor
|
|
// limiter because it may causes "selectionchange" event.
|
|
if (tryToCollapseSelectionAtFirstEditableNode) {
|
|
MaybeCollapseSelectionAtFirstEditableNode(true);
|
|
}
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::MaybeCollapseSelectionAtFirstEditableNode(
|
|
bool aIgnoreIfSelectionInEditingHost)
|
|
{
|
|
// XXX Why doesn't this check if the document is alive?
|
|
if (!IsInitialized()) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
RefPtr<Selection> selection = GetSelection();
|
|
if (NS_WARN_IF(!selection)) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
// Use editing host. If you use root element here, selection may be
|
|
// moved to <head> element, e.g., if there is a text node in <script>
|
|
// element. So, we should use active editing host.
|
|
RefPtr<Element> editingHost = GetActiveEditingHost();
|
|
if (NS_WARN_IF(!editingHost)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// If selection range is already in the editing host and the range is not
|
|
// start of the editing host, we shouldn't reset selection. E.g., window
|
|
// is activated when the editor had focus before inactivated.
|
|
if (aIgnoreIfSelectionInEditingHost && selection->RangeCount() == 1) {
|
|
nsRange* range = selection->GetRangeAt(0);
|
|
if (!range->Collapsed() ||
|
|
range->GetStartContainer() != editingHost.get() ||
|
|
range->StartOffset()) {
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
// Find first editable and visible node.
|
|
EditorRawDOMPoint pointToPutCaret(editingHost, 0);
|
|
for (;;) {
|
|
WSRunObject wsObj(this, pointToPutCaret.GetContainer(),
|
|
pointToPutCaret.Offset());
|
|
int32_t visOffset = 0;
|
|
WSType visType;
|
|
nsCOMPtr<nsINode> visNode;
|
|
wsObj.NextVisibleNode(pointToPutCaret,
|
|
address_of(visNode), &visOffset, &visType);
|
|
|
|
// If we meet a non-editable node first, we should move caret to start of
|
|
// the editing host (perhaps, user may want to insert something before
|
|
// the first non-editable node? Chromium behaves so).
|
|
if (visNode && !visNode->IsEditable()) {
|
|
pointToPutCaret.Set(editingHost, 0);
|
|
break;
|
|
}
|
|
|
|
// WSRunObject::NextVisibleNode() returns WSType::special and the "special"
|
|
// node when it meets empty inline element. In this case, we should go to
|
|
// next sibling. For example, if current editor is:
|
|
// <div contenteditable><span></span><b><br></b></div>
|
|
// then, we should put caret at the <br> element. So, let's check if
|
|
// found node is an empty inline container element.
|
|
if (visType == WSType::special && visNode &&
|
|
TagCanContainTag(*visNode->NodeInfo()->NameAtom(),
|
|
*nsGkAtoms::textTagName)) {
|
|
pointToPutCaret.Set(visNode);
|
|
DebugOnly<bool> advanced = pointToPutCaret.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset from found empty inline container element");
|
|
continue;
|
|
}
|
|
|
|
// If there is editable and visible text node, move caret at start of it.
|
|
if (visType == WSType::normalWS || visType == WSType::text) {
|
|
pointToPutCaret.Set(visNode, visOffset);
|
|
break;
|
|
}
|
|
|
|
// If there is editable <br> or something inline special element like
|
|
// <img>, <input>, etc, move caret before it.
|
|
if (visType == WSType::br || visType == WSType::special) {
|
|
pointToPutCaret.Set(visNode);
|
|
break;
|
|
}
|
|
|
|
// If there is no visible/editable node except another block element in
|
|
// current editing host, we should move caret to very first of the editing
|
|
// host.
|
|
// XXX This may not make sense, but Chromium behaves so. Therefore, the
|
|
// reason why we do this is just compatibility with Chromium.
|
|
if (visType != WSType::otherBlock) {
|
|
pointToPutCaret.Set(editingHost, 0);
|
|
break;
|
|
}
|
|
|
|
// By definition of WSRunObject, a block element terminates a whitespace
|
|
// run. That is, although we are calling a method that is named
|
|
// "NextVisibleNode", the node returned might not be visible/editable!
|
|
|
|
// However, we were given a block that is not a container. Since the
|
|
// block can not contain anything that's visible, such a block only
|
|
// makes sense if it is visible by itself, like a <hr>. We want to
|
|
// place the caret in front of that block.
|
|
if (!IsContainer(visNode)) {
|
|
pointToPutCaret.Set(visNode);
|
|
break;
|
|
}
|
|
|
|
// If the given block does not contain any visible/editable items, we want
|
|
// to skip it and continue our search.
|
|
bool isEmptyBlock;
|
|
if (NS_SUCCEEDED(IsEmptyNode(visNode, &isEmptyBlock)) && isEmptyBlock) {
|
|
// Skip the empty block
|
|
pointToPutCaret.Set(visNode);
|
|
DebugOnly<bool> advanced = pointToPutCaret.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset from the found empty block node");
|
|
} else {
|
|
pointToPutCaret.Set(visNode, 0);
|
|
}
|
|
}
|
|
return selection->Collapse(pointToPutCaret);
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::HandleKeyPressEvent(WidgetKeyboardEvent* aKeyboardEvent)
|
|
{
|
|
// NOTE: When you change this method, you should also change:
|
|
// * editor/libeditor/tests/test_htmleditor_keyevent_handling.html
|
|
|
|
if (IsReadonly() || IsDisabled()) {
|
|
// When we're not editable, the events are handled on EditorBase, so, we can
|
|
// bypass TextEditor.
|
|
return EditorBase::HandleKeyPressEvent(aKeyboardEvent);
|
|
}
|
|
|
|
if (NS_WARN_IF(!aKeyboardEvent)) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
MOZ_ASSERT(aKeyboardEvent->mMessage == eKeyPress,
|
|
"HandleKeyPressEvent gets non-keypress event");
|
|
|
|
switch (aKeyboardEvent->mKeyCode) {
|
|
case NS_VK_META:
|
|
case NS_VK_WIN:
|
|
case NS_VK_SHIFT:
|
|
case NS_VK_CONTROL:
|
|
case NS_VK_ALT:
|
|
// These keys are handled on EditorBase, so, we can bypass
|
|
// TextEditor.
|
|
return EditorBase::HandleKeyPressEvent(aKeyboardEvent);
|
|
case NS_VK_BACK:
|
|
case NS_VK_DELETE:
|
|
// These keys are handled on TextEditor.
|
|
return TextEditor::HandleKeyPressEvent(aKeyboardEvent);
|
|
case NS_VK_TAB: {
|
|
if (IsPlaintextEditor()) {
|
|
// If this works as plain text editor, e.g., mail editor for plain
|
|
// text, should be handled on TextEditor.
|
|
return TextEditor::HandleKeyPressEvent(aKeyboardEvent);
|
|
}
|
|
|
|
if (IsTabbable()) {
|
|
return NS_OK; // let it be used for focus switching
|
|
}
|
|
|
|
if (aKeyboardEvent->IsControl() || aKeyboardEvent->IsAlt() ||
|
|
aKeyboardEvent->IsMeta() || aKeyboardEvent->IsOS()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection && selection->RangeCount(), NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<nsINode> node = selection->GetRangeAt(0)->GetStartContainer();
|
|
MOZ_ASSERT(node);
|
|
|
|
nsCOMPtr<Element> blockParent = GetBlock(*node);
|
|
|
|
if (!blockParent) {
|
|
break;
|
|
}
|
|
|
|
bool handled = false;
|
|
nsresult rv = NS_OK;
|
|
if (HTMLEditUtils::IsTableElement(blockParent)) {
|
|
rv = TabInTable(aKeyboardEvent->IsShift(), &handled);
|
|
// TabInTable might cause reframe
|
|
if (Destroyed()) {
|
|
return NS_OK;
|
|
}
|
|
if (handled) {
|
|
ScrollSelectionIntoView(false);
|
|
}
|
|
} else if (HTMLEditUtils::IsListItem(blockParent)) {
|
|
rv = Indent(aKeyboardEvent->IsShift()
|
|
? NS_LITERAL_STRING("outdent")
|
|
: NS_LITERAL_STRING("indent"));
|
|
handled = true;
|
|
}
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
if (handled) {
|
|
aKeyboardEvent->PreventDefault(); // consumed
|
|
return NS_OK;
|
|
}
|
|
if (aKeyboardEvent->IsShift()) {
|
|
return NS_OK; // don't type text for shift tabs
|
|
}
|
|
aKeyboardEvent->PreventDefault();
|
|
return OnInputText(NS_LITERAL_STRING("\t"));
|
|
}
|
|
case NS_VK_RETURN:
|
|
if (!aKeyboardEvent->IsInputtingLineBreak()) {
|
|
return NS_OK;
|
|
}
|
|
aKeyboardEvent->PreventDefault(); // consumed
|
|
if (aKeyboardEvent->IsShift()) {
|
|
// Only inserts a <br> element.
|
|
return OnInputLineBreak();
|
|
}
|
|
// uses rules to figure out what to insert
|
|
return OnInputParagraphSeparator();
|
|
}
|
|
|
|
if (!aKeyboardEvent->IsInputtingText()) {
|
|
// we don't PreventDefault() here or keybindings like control-x won't work
|
|
return NS_OK;
|
|
}
|
|
aKeyboardEvent->PreventDefault();
|
|
nsAutoString str(aKeyboardEvent->mCharCode);
|
|
return OnInputText(str);
|
|
}
|
|
|
|
/**
|
|
* Returns true if the id represents an element of block type.
|
|
* Can be used to determine if a new paragraph should be started.
|
|
*/
|
|
bool
|
|
HTMLEditor::NodeIsBlockStatic(const nsINode* aElement)
|
|
{
|
|
MOZ_ASSERT(aElement);
|
|
|
|
// We want to treat these as block nodes even though nsHTMLElement says
|
|
// they're not.
|
|
if (aElement->IsAnyOfHTMLElements(nsGkAtoms::body,
|
|
nsGkAtoms::head,
|
|
nsGkAtoms::tbody,
|
|
nsGkAtoms::thead,
|
|
nsGkAtoms::tfoot,
|
|
nsGkAtoms::tr,
|
|
nsGkAtoms::th,
|
|
nsGkAtoms::td,
|
|
nsGkAtoms::dt,
|
|
nsGkAtoms::dd)) {
|
|
return true;
|
|
}
|
|
|
|
return nsHTMLElement::IsBlock(
|
|
nsHTMLTags::AtomTagToId(aElement->NodeInfo()->NameAtom()));
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::NodeIsBlock(nsIDOMNode* aNode,
|
|
bool* aIsBlock)
|
|
{
|
|
nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
|
|
*aIsBlock = IsBlockNode(node);
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::IsBlockNode(nsINode* aNode)
|
|
{
|
|
return aNode && NodeIsBlockStatic(aNode);
|
|
}
|
|
|
|
/**
|
|
* GetBlockNodeParent returns enclosing block level ancestor, if any.
|
|
*/
|
|
Element*
|
|
HTMLEditor::GetBlockNodeParent(nsINode* aNode,
|
|
nsINode* aAncestorLimiter)
|
|
{
|
|
MOZ_ASSERT(aNode);
|
|
MOZ_ASSERT(!aAncestorLimiter ||
|
|
aNode == aAncestorLimiter ||
|
|
EditorUtils::IsDescendantOf(*aNode, *aAncestorLimiter),
|
|
"aNode isn't in aAncestorLimiter");
|
|
|
|
// The caller has already reached the limiter.
|
|
if (aNode == aAncestorLimiter) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<nsINode> p = aNode->GetParentNode();
|
|
|
|
while (p) {
|
|
if (NodeIsBlockStatic(p)) {
|
|
return p->AsElement();
|
|
}
|
|
// Now, we have reached the limiter, there is no block in its ancestors.
|
|
if (p == aAncestorLimiter) {
|
|
return nullptr;
|
|
}
|
|
p = p->GetParentNode();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
/**
|
|
* Returns the node if it's a block, otherwise GetBlockNodeParent
|
|
*/
|
|
Element*
|
|
HTMLEditor::GetBlock(nsINode& aNode,
|
|
nsINode* aAncestorLimiter)
|
|
{
|
|
MOZ_ASSERT(!aAncestorLimiter ||
|
|
&aNode == aAncestorLimiter ||
|
|
EditorUtils::IsDescendantOf(aNode, *aAncestorLimiter),
|
|
"aNode isn't in aAncestorLimiter");
|
|
|
|
if (NodeIsBlockStatic(&aNode)) {
|
|
return aNode.AsElement();
|
|
}
|
|
return GetBlockNodeParent(&aNode, aAncestorLimiter);
|
|
}
|
|
|
|
/**
|
|
* IsNextCharInNodeWhitespace() checks the adjacent content in the same node to
|
|
* see if following selection is whitespace or nbsp.
|
|
*/
|
|
void
|
|
HTMLEditor::IsNextCharInNodeWhitespace(nsIContent* aContent,
|
|
int32_t aOffset,
|
|
bool* outIsSpace,
|
|
bool* outIsNBSP,
|
|
nsIContent** outNode,
|
|
int32_t* outOffset)
|
|
{
|
|
MOZ_ASSERT(aContent && outIsSpace && outIsNBSP);
|
|
MOZ_ASSERT((outNode && outOffset) || (!outNode && !outOffset));
|
|
*outIsSpace = false;
|
|
*outIsNBSP = false;
|
|
if (outNode && outOffset) {
|
|
*outNode = nullptr;
|
|
*outOffset = -1;
|
|
}
|
|
|
|
if (aContent->IsText() &&
|
|
(uint32_t)aOffset < aContent->Length()) {
|
|
char16_t ch = aContent->GetText()->CharAt(aOffset);
|
|
*outIsSpace = nsCRT::IsAsciiSpace(ch);
|
|
*outIsNBSP = (ch == kNBSP);
|
|
if (outNode && outOffset) {
|
|
NS_IF_ADDREF(*outNode = aContent);
|
|
// yes, this is _past_ the character
|
|
*outOffset = aOffset + 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* IsPrevCharInNodeWhitespace() checks the adjacent content in the same node to
|
|
* see if following selection is whitespace.
|
|
*/
|
|
void
|
|
HTMLEditor::IsPrevCharInNodeWhitespace(nsIContent* aContent,
|
|
int32_t aOffset,
|
|
bool* outIsSpace,
|
|
bool* outIsNBSP,
|
|
nsIContent** outNode,
|
|
int32_t* outOffset)
|
|
{
|
|
MOZ_ASSERT(aContent && outIsSpace && outIsNBSP);
|
|
MOZ_ASSERT((outNode && outOffset) || (!outNode && !outOffset));
|
|
*outIsSpace = false;
|
|
*outIsNBSP = false;
|
|
if (outNode && outOffset) {
|
|
*outNode = nullptr;
|
|
*outOffset = -1;
|
|
}
|
|
|
|
if (aContent->IsText() && aOffset > 0) {
|
|
char16_t ch = aContent->GetText()->CharAt(aOffset - 1);
|
|
*outIsSpace = nsCRT::IsAsciiSpace(ch);
|
|
*outIsNBSP = (ch == kNBSP);
|
|
if (outNode && outOffset) {
|
|
NS_IF_ADDREF(*outNode = aContent);
|
|
*outOffset = aOffset - 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::IsVisibleBRElement(nsINode* aNode)
|
|
{
|
|
MOZ_ASSERT(aNode);
|
|
if (!TextEditUtils::IsBreak(aNode)) {
|
|
return false;
|
|
}
|
|
// Check if there is another element or text node in block after current
|
|
// <br> element.
|
|
// Note that even if following node is non-editable, it may make the
|
|
// <br> element visible if it just exists.
|
|
// E.g., foo<br><button contenteditable="false">button</button>
|
|
// However, we need to ignore invisible data nodes like comment node.
|
|
nsCOMPtr<nsINode> nextNode = GetNextHTMLElementOrTextInBlock(*aNode);
|
|
if (nextNode && TextEditUtils::IsBreak(nextNode)) {
|
|
return true;
|
|
}
|
|
|
|
// A single line break before a block boundary is not displayed, so e.g.
|
|
// foo<p>bar<br></p> and foo<br><p>bar</p> display the same as foo<p>bar</p>.
|
|
// But if there are multiple <br>s in a row, all but the last are visible.
|
|
if (!nextNode) {
|
|
// This break is trailer in block, it's not visible
|
|
return false;
|
|
}
|
|
if (IsBlockNode(nextNode)) {
|
|
// Break is right before a block, it's not visible
|
|
return false;
|
|
}
|
|
|
|
// If there's an inline node after this one that's not a break, and also a
|
|
// prior break, this break must be visible.
|
|
// Note that even if previous node is non-editable, it may make the
|
|
// <br> element visible if it just exists.
|
|
// E.g., <button contenteditable="false"><br>foo
|
|
// However, we need to ignore invisible data nodes like comment node.
|
|
nsCOMPtr<nsINode> priorNode = GetPreviousHTMLElementOrTextInBlock(*aNode);
|
|
if (priorNode && TextEditUtils::IsBreak(priorNode)) {
|
|
return true;
|
|
}
|
|
|
|
// Sigh. We have to use expensive whitespace calculation code to
|
|
// determine what is going on
|
|
int32_t selOffset;
|
|
nsCOMPtr<nsINode> selNode = GetNodeLocation(aNode, &selOffset);
|
|
// Let's look after the break
|
|
selOffset++;
|
|
WSRunObject wsObj(this, selNode, selOffset);
|
|
nsCOMPtr<nsINode> unused;
|
|
int32_t visOffset = 0;
|
|
WSType visType;
|
|
wsObj.NextVisibleNode(EditorRawDOMPoint(selNode, selOffset),
|
|
address_of(unused), &visOffset, &visType);
|
|
if (visType & WSType::block) {
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::UpdateBaseURL()
|
|
{
|
|
nsCOMPtr<nsIDocument> doc = GetDocument();
|
|
NS_ENSURE_TRUE(doc, NS_ERROR_FAILURE);
|
|
|
|
// Look for an HTML <base> tag
|
|
RefPtr<nsContentList> nodeList =
|
|
doc->GetElementsByTagName(NS_LITERAL_STRING("base"));
|
|
|
|
// If no base tag, then set baseURL to the document's URL. This is very
|
|
// important, else relative URLs for links and images are wrong
|
|
if (!nodeList || !nodeList->Item(0)) {
|
|
doc->SetBaseURI(doc->GetDocumentURI());
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::OnInputLineBreak()
|
|
{
|
|
AutoPlaceholderBatch batch(this, nsGkAtoms::TypingTxnName);
|
|
nsresult rv = InsertBrElementAtSelectionWithTransaction();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::TabInTable(bool inIsShift,
|
|
bool* outHandled)
|
|
{
|
|
NS_ENSURE_TRUE(outHandled, NS_ERROR_NULL_POINTER);
|
|
*outHandled = false;
|
|
|
|
// Find enclosing table cell from selection (cell may be selected element)
|
|
nsCOMPtr<Element> cellElement =
|
|
GetElementOrParentByTagName(NS_LITERAL_STRING("td"), nullptr);
|
|
// Do nothing -- we didn't find a table cell
|
|
NS_ENSURE_TRUE(cellElement, NS_OK);
|
|
|
|
// find enclosing table
|
|
nsCOMPtr<Element> table = GetEnclosingTable(cellElement);
|
|
NS_ENSURE_TRUE(table, NS_OK);
|
|
|
|
// advance to next cell
|
|
// first create an iterator over the table
|
|
nsCOMPtr<nsIContentIterator> iter = NS_NewContentIterator();
|
|
nsresult rv = iter->Init(table);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
// position iter at block
|
|
rv = iter->PositionAt(cellElement);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsINode> node;
|
|
do {
|
|
if (inIsShift) {
|
|
iter->Prev();
|
|
} else {
|
|
iter->Next();
|
|
}
|
|
|
|
node = iter->GetCurrentNode();
|
|
|
|
if (node && HTMLEditUtils::IsTableCell(node) &&
|
|
GetEnclosingTable(node) == table) {
|
|
CollapseSelectionToDeepestNonTableFirstChild(nullptr, node);
|
|
*outHandled = true;
|
|
return NS_OK;
|
|
}
|
|
} while (!iter->IsDone());
|
|
|
|
if (!(*outHandled) && !inIsShift) {
|
|
// If we haven't handled it yet, then we must have run off the end of the
|
|
// table. Insert a new row.
|
|
rv = InsertTableRow(1, true);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
*outHandled = true;
|
|
// Put selection in right place. Use table code to get selection and index
|
|
// to new row...
|
|
RefPtr<Selection> selection;
|
|
RefPtr<Element> tblElement, cell;
|
|
int32_t row;
|
|
rv = GetCellContext(getter_AddRefs(selection),
|
|
getter_AddRefs(tblElement),
|
|
getter_AddRefs(cell),
|
|
nullptr, nullptr,
|
|
&row, nullptr);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
// ...so that we can ask for first cell in that row...
|
|
rv = GetCellAt(tblElement, row, 0, getter_AddRefs(cell));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
// ...and then set selection there. (Note that normally you should use
|
|
// CollapseSelectionToDeepestNonTableFirstChild(), but we know cell is an
|
|
// empty new cell, so this works fine)
|
|
if (cell) {
|
|
selection->Collapse(cell, 0);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::InsertBrElementAtSelectionWithTransaction()
|
|
{
|
|
// calling it text insertion to trigger moz br treatment by rules
|
|
AutoRules beginRulesSniffing(this, EditAction::insertText, nsIEditor::eNext);
|
|
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_STATE(selection);
|
|
|
|
if (!selection->IsCollapsed()) {
|
|
nsresult rv = DeleteSelectionAsAction(eNone, eStrip);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
EditorRawDOMPoint atStartOfSelection(GetStartPoint(selection));
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// InsertBrElementWithTransaction() will set selection after the new <br>
|
|
// element.
|
|
RefPtr<Element> newBrElement =
|
|
InsertBrElementWithTransaction(*selection, atStartOfSelection, eNext);
|
|
if (NS_WARN_IF(!newBrElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
void
|
|
HTMLEditor::CollapseSelectionToDeepestNonTableFirstChild(Selection* aSelection,
|
|
nsINode* aNode)
|
|
{
|
|
MOZ_ASSERT(aNode);
|
|
|
|
RefPtr<Selection> selection = aSelection;
|
|
if (!selection) {
|
|
selection = GetSelection();
|
|
}
|
|
if (!selection) {
|
|
// Nothing to do
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsINode> node = aNode;
|
|
|
|
for (nsCOMPtr<nsIContent> child = node->GetFirstChild();
|
|
child;
|
|
child = child->GetFirstChild()) {
|
|
// Stop if we find a table, don't want to go into nested tables
|
|
if (HTMLEditUtils::IsTable(child) || !IsContainer(child)) {
|
|
break;
|
|
}
|
|
node = child;
|
|
}
|
|
|
|
selection->Collapse(node, 0);
|
|
}
|
|
|
|
|
|
/**
|
|
* This is mostly like InsertHTMLWithCharsetAndContext, but we can't use that
|
|
* because it is selection-based and the rules code won't let us edit under the
|
|
* <head> node
|
|
*/
|
|
NS_IMETHODIMP
|
|
HTMLEditor::ReplaceHeadContentsWithHTML(const nsAString& aSourceToInsert)
|
|
{
|
|
// don't do any post processing, rules get confused
|
|
AutoRules beginRulesSniffing(this, EditAction::ignore, nsIEditor::eNone);
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
|
|
|
|
CommitComposition();
|
|
|
|
// Do not use AutoRules -- rules code won't let us insert in <head>. Use
|
|
// the head node as a parent and delete/insert directly.
|
|
nsCOMPtr<nsIDocument> document = GetDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
RefPtr<nsContentList> nodeList =
|
|
document->GetElementsByTagName(NS_LITERAL_STRING("head"));
|
|
NS_ENSURE_TRUE(nodeList, NS_ERROR_NULL_POINTER);
|
|
|
|
nsCOMPtr<nsIContent> headNode = nodeList->Item(0);
|
|
NS_ENSURE_TRUE(headNode, NS_ERROR_NULL_POINTER);
|
|
|
|
// First, make sure there are no return chars in the source. Bad things
|
|
// happen if you insert returns (instead of dom newlines, \n) into an editor
|
|
// document.
|
|
nsAutoString inputString (aSourceToInsert); // hope this does copy-on-write
|
|
|
|
// Windows linebreaks: Map CRLF to LF:
|
|
inputString.ReplaceSubstring(u"\r\n", u"\n");
|
|
|
|
// Mac linebreaks: Map any remaining CR to LF:
|
|
inputString.ReplaceSubstring(u"\r", u"\n");
|
|
|
|
AutoPlaceholderBatch beginBatching(this);
|
|
|
|
// Get the first range in the selection, for context:
|
|
RefPtr<nsRange> range = selection->GetRangeAt(0);
|
|
NS_ENSURE_TRUE(range, NS_ERROR_NULL_POINTER);
|
|
|
|
ErrorResult err;
|
|
RefPtr<DocumentFragment> docfrag =
|
|
range->CreateContextualFragment(inputString, err);
|
|
|
|
// XXXX BUG 50965: This is not returning the text between <title>...</title>
|
|
// Special code is needed in JS to handle title anyway, so it doesn't matter!
|
|
|
|
if (err.Failed()) {
|
|
#ifdef DEBUG
|
|
printf("Couldn't create contextual fragment: error was %X\n",
|
|
err.ErrorCodeAsInt());
|
|
#endif
|
|
return err.StealNSResult();
|
|
}
|
|
NS_ENSURE_TRUE(docfrag, NS_ERROR_NULL_POINTER);
|
|
|
|
// First delete all children in head
|
|
while (nsCOMPtr<nsIContent> child = headNode->GetFirstChild()) {
|
|
nsresult rv = DeleteNodeWithTransaction(*child);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
// Now insert the new nodes
|
|
int32_t offsetOfNewNode = 0;
|
|
|
|
// Loop over the contents of the fragment and move into the document
|
|
while (nsCOMPtr<nsIContent> child = docfrag->GetFirstChild()) {
|
|
nsresult rv =
|
|
InsertNodeWithTransaction(*child,
|
|
EditorRawDOMPoint(headNode, offsetOfNewNode++));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::RebuildDocumentFromSource(const nsAString& aSourceString)
|
|
{
|
|
CommitComposition();
|
|
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
|
|
|
|
RefPtr<Element> rootElement = GetRoot();
|
|
if (NS_WARN_IF(!rootElement)) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
// Find where the <body> tag starts.
|
|
nsReadingIterator<char16_t> beginbody;
|
|
nsReadingIterator<char16_t> endbody;
|
|
aSourceString.BeginReading(beginbody);
|
|
aSourceString.EndReading(endbody);
|
|
bool foundbody = CaseInsensitiveFindInReadable(NS_LITERAL_STRING("<body"),
|
|
beginbody, endbody);
|
|
|
|
nsReadingIterator<char16_t> beginhead;
|
|
nsReadingIterator<char16_t> endhead;
|
|
aSourceString.BeginReading(beginhead);
|
|
aSourceString.EndReading(endhead);
|
|
bool foundhead = CaseInsensitiveFindInReadable(NS_LITERAL_STRING("<head"),
|
|
beginhead, endhead);
|
|
// a valid head appears before the body
|
|
if (foundbody && beginhead.get() > beginbody.get()) {
|
|
foundhead = false;
|
|
}
|
|
|
|
nsReadingIterator<char16_t> beginclosehead;
|
|
nsReadingIterator<char16_t> endclosehead;
|
|
aSourceString.BeginReading(beginclosehead);
|
|
aSourceString.EndReading(endclosehead);
|
|
|
|
// Find the index after "<head>"
|
|
bool foundclosehead = CaseInsensitiveFindInReadable(
|
|
NS_LITERAL_STRING("</head>"), beginclosehead, endclosehead);
|
|
// a valid close head appears after a found head
|
|
if (foundhead && beginhead.get() > beginclosehead.get()) {
|
|
foundclosehead = false;
|
|
}
|
|
// a valid close head appears before a found body
|
|
if (foundbody && beginclosehead.get() > beginbody.get()) {
|
|
foundclosehead = false;
|
|
}
|
|
|
|
// Time to change the document
|
|
AutoPlaceholderBatch beginBatching(this);
|
|
|
|
nsReadingIterator<char16_t> endtotal;
|
|
aSourceString.EndReading(endtotal);
|
|
|
|
if (foundhead) {
|
|
if (foundclosehead) {
|
|
nsresult rv =
|
|
ReplaceHeadContentsWithHTML(Substring(beginhead, beginclosehead));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
} else if (foundbody) {
|
|
nsresult rv =
|
|
ReplaceHeadContentsWithHTML(Substring(beginhead, beginbody));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
} else {
|
|
// XXX Without recourse to some parser/content sink/docshell hackery we
|
|
// don't really know where the head ends and the body begins so we assume
|
|
// that there is no body
|
|
nsresult rv = ReplaceHeadContentsWithHTML(Substring(beginhead, endtotal));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
} else {
|
|
nsReadingIterator<char16_t> begintotal;
|
|
aSourceString.BeginReading(begintotal);
|
|
NS_NAMED_LITERAL_STRING(head, "<head>");
|
|
if (foundclosehead) {
|
|
nsresult rv =
|
|
ReplaceHeadContentsWithHTML(head + Substring(begintotal,
|
|
beginclosehead));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
} else if (foundbody) {
|
|
nsresult rv = ReplaceHeadContentsWithHTML(head + Substring(begintotal,
|
|
beginbody));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
} else {
|
|
// XXX Without recourse to some parser/content sink/docshell hackery we
|
|
// don't really know where the head ends and the body begins so we assume
|
|
// that there is no head
|
|
nsresult rv = ReplaceHeadContentsWithHTML(head);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult rv = SelectAll();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (!foundbody) {
|
|
NS_NAMED_LITERAL_STRING(body, "<body>");
|
|
// XXX Without recourse to some parser/content sink/docshell hackery we
|
|
// don't really know where the head ends and the body begins
|
|
if (foundclosehead) {
|
|
// assume body starts after the head ends
|
|
nsresult rv = LoadHTML(body + Substring(endclosehead, endtotal));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
} else if (foundhead) {
|
|
// assume there is no body
|
|
nsresult rv = LoadHTML(body);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
} else {
|
|
// assume there is no head, the entire source is body
|
|
nsresult rv = LoadHTML(body + aSourceString);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
RefPtr<Element> divElement =
|
|
CreateElementWithDefaults(NS_LITERAL_STRING("div"));
|
|
if (NS_WARN_IF(!divElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
CloneAttributesWithTransaction(*rootElement, *divElement);
|
|
|
|
return BeginningOfDocument();
|
|
}
|
|
|
|
rv = LoadHTML(Substring(beginbody, endtotal));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// Now we must copy attributes user might have edited on the <body> tag
|
|
// because InsertHTML (actually, CreateContextualFragment()) will never
|
|
// return a body node in the DOM fragment
|
|
|
|
// We already know where "<body" begins
|
|
nsReadingIterator<char16_t> beginclosebody = beginbody;
|
|
nsReadingIterator<char16_t> endclosebody;
|
|
aSourceString.EndReading(endclosebody);
|
|
if (!FindInReadable(NS_LITERAL_STRING(">"), beginclosebody, endclosebody)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Truncate at the end of the body tag. Kludge of the year: fool the parser
|
|
// by replacing "body" with "div" so we get a node
|
|
nsAutoString bodyTag;
|
|
bodyTag.AssignLiteral("<div ");
|
|
bodyTag.Append(Substring(endbody, endclosebody));
|
|
|
|
RefPtr<nsRange> range = selection->GetRangeAt(0);
|
|
NS_ENSURE_TRUE(range, NS_ERROR_FAILURE);
|
|
|
|
ErrorResult erv;
|
|
RefPtr<DocumentFragment> docfrag =
|
|
range->CreateContextualFragment(bodyTag, erv);
|
|
NS_ENSURE_TRUE(!erv.Failed(), erv.StealNSResult());
|
|
NS_ENSURE_TRUE(docfrag, NS_ERROR_NULL_POINTER);
|
|
|
|
nsCOMPtr<nsIContent> child = docfrag->GetFirstChild();
|
|
NS_ENSURE_TRUE(child && child->IsElement(), NS_ERROR_NULL_POINTER);
|
|
|
|
// Copy all attributes from the div child to current body element
|
|
CloneAttributesWithTransaction(*rootElement, *child->AsElement());
|
|
|
|
// place selection at first editable content
|
|
return BeginningOfDocument();
|
|
}
|
|
|
|
EditorRawDOMPoint
|
|
HTMLEditor::GetBetterInsertionPointFor(nsINode& aNodeToInsert,
|
|
const EditorRawDOMPoint& aPointToInsert)
|
|
{
|
|
if (NS_WARN_IF(!aPointToInsert.IsSet())) {
|
|
return aPointToInsert;
|
|
}
|
|
|
|
EditorRawDOMPoint pointToInsert(aPointToInsert.GetNonAnonymousSubtreePoint());
|
|
if (NS_WARN_IF(!pointToInsert.IsSet())) {
|
|
// Cannot insert aNodeToInsert into this DOM tree.
|
|
return EditorRawDOMPoint();
|
|
}
|
|
|
|
// If the node to insert is not a block level element, we can insert it
|
|
// at any point.
|
|
if (!IsBlockNode(&aNodeToInsert)) {
|
|
return pointToInsert;
|
|
}
|
|
|
|
WSRunObject wsObj(this, pointToInsert.GetContainer(),
|
|
pointToInsert.Offset());
|
|
|
|
// If the insertion position is after the last visible item in a line,
|
|
// i.e., the insertion position is just before a visible line break <br>,
|
|
// we want to skip to the position just after the line break (see bug 68767).
|
|
nsCOMPtr<nsINode> nextVisibleNode;
|
|
int32_t nextVisibleOffset = 0;
|
|
WSType nextVisibleType;
|
|
wsObj.NextVisibleNode(pointToInsert, address_of(nextVisibleNode),
|
|
&nextVisibleOffset, &nextVisibleType);
|
|
// So, if the next visible node isn't a <br> element, we can insert the block
|
|
// level element to the point.
|
|
if (!nextVisibleNode ||
|
|
!(nextVisibleType & WSType::br)) {
|
|
return pointToInsert;
|
|
}
|
|
|
|
// However, we must not skip next <br> element when the caret appears to be
|
|
// positioned at the beginning of a block, in that case skipping the <br>
|
|
// would not insert the <br> at the caret position, but after the current
|
|
// empty line.
|
|
nsCOMPtr<nsINode> previousVisibleNode;
|
|
int32_t previousVisibleOffset = 0;
|
|
WSType previousVisibleType;
|
|
wsObj.PriorVisibleNode(pointToInsert, address_of(previousVisibleNode),
|
|
&previousVisibleOffset, &previousVisibleType);
|
|
// So, if there is no previous visible node,
|
|
// or, if both nodes of the insertion point is <br> elements,
|
|
// or, if the previous visible node is different block,
|
|
// we need to skip the following <br>. So, otherwise, we can insert the
|
|
// block at the insertion point.
|
|
if (!previousVisibleNode ||
|
|
(previousVisibleType & WSType::br) ||
|
|
(previousVisibleType & WSType::thisBlock)) {
|
|
return pointToInsert;
|
|
}
|
|
|
|
EditorRawDOMPoint afterBRNode(nextVisibleNode);
|
|
DebugOnly<bool> advanced = afterBRNode.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset to after the <br> node");
|
|
return afterBRNode;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::InsertElementAtSelection(Element* aElement,
|
|
bool aDeleteSelection)
|
|
{
|
|
// Protect the edit rules object from dying
|
|
RefPtr<TextEditRules> rules(mRules);
|
|
|
|
NS_ENSURE_TRUE(aElement, NS_ERROR_NULL_POINTER);
|
|
|
|
CommitComposition();
|
|
AutoPlaceholderBatch beginBatching(this);
|
|
AutoRules beginRulesSniffing(this, EditAction::insertElement,
|
|
nsIEditor::eNext);
|
|
|
|
RefPtr<Selection> selection = GetSelection();
|
|
if (!selection) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// hand off to the rules system, see if it has anything to say about this
|
|
bool cancel, handled;
|
|
RulesInfo ruleInfo(EditAction::insertElement);
|
|
nsresult rv = rules->WillDoAction(selection, &ruleInfo, &cancel, &handled);
|
|
if (cancel || NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
if (!handled) {
|
|
if (aDeleteSelection) {
|
|
if (!IsBlockNode(aElement)) {
|
|
// E.g., inserting an image. In this case we don't need to delete any
|
|
// inline wrappers before we do the insertion. Otherwise we let
|
|
// DeleteSelectionAndPrepareToCreateNode do the deletion for us, which
|
|
// calls DeleteSelection with aStripWrappers = eStrip.
|
|
rv = DeleteSelectionAsAction(eNone, eNoStrip);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
nsresult rv = DeleteSelectionAndPrepareToCreateNode();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
// If deleting, selection will be collapsed.
|
|
// so if not, we collapse it
|
|
if (!aDeleteSelection) {
|
|
// Named Anchor is a special case,
|
|
// We collapse to insert element BEFORE the selection
|
|
// For all other tags, we insert AFTER the selection
|
|
if (HTMLEditUtils::IsNamedAnchor(aElement)) {
|
|
selection->CollapseToStart(IgnoreErrors());
|
|
} else {
|
|
selection->CollapseToEnd(IgnoreErrors());
|
|
}
|
|
}
|
|
|
|
if (selection->GetAnchorNode()) {
|
|
EditorRawDOMPoint atAnchor(selection->AnchorRef());
|
|
// Adjust position based on the node we are going to insert.
|
|
EditorRawDOMPoint pointToInsert =
|
|
GetBetterInsertionPointFor(*aElement, atAnchor);
|
|
if (NS_WARN_IF(!pointToInsert.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorDOMPoint insertedPoint =
|
|
InsertNodeIntoProperAncestorWithTransaction(
|
|
*aElement, pointToInsert, SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (NS_WARN_IF(!insertedPoint.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// Set caret after element, but check for special case
|
|
// of inserting table-related elements: set in first cell instead
|
|
if (!SetCaretInTableCell(aElement)) {
|
|
rv = SetCaretAfterElement(aElement);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
// check for inserting a whole table at the end of a block. If so insert
|
|
// a br after it.
|
|
if (HTMLEditUtils::IsTable(aElement) &&
|
|
IsLastEditableChild(aElement)) {
|
|
DebugOnly<bool> advanced = insertedPoint.AdvanceOffset();
|
|
NS_WARNING_ASSERTION(advanced,
|
|
"Failed to advance offset from inserted point");
|
|
// Collapse selection to the new <br> element node after creating it.
|
|
RefPtr<Element> newBrElement =
|
|
InsertBrElementWithTransaction(*selection, insertedPoint, ePrevious);
|
|
if (NS_WARN_IF(!newBrElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
rv = rules->DidDoAction(selection, &ruleInfo, rv);
|
|
return rv;
|
|
}
|
|
|
|
template<typename PT, typename CT>
|
|
EditorDOMPoint
|
|
HTMLEditor::InsertNodeIntoProperAncestorWithTransaction(
|
|
nsIContent& aNode,
|
|
const EditorDOMPointBase<PT, CT>& aPointToInsert,
|
|
SplitAtEdges aSplitAtEdges)
|
|
{
|
|
if (NS_WARN_IF(!aPointToInsert.IsSet())) {
|
|
return EditorDOMPoint();
|
|
}
|
|
MOZ_ASSERT(aPointToInsert.IsSetAndValid());
|
|
|
|
// Search up the parent chain to find a suitable container.
|
|
EditorDOMPoint pointToInsert(aPointToInsert);
|
|
MOZ_ASSERT(pointToInsert.IsSet());
|
|
while (!CanContain(*pointToInsert.GetContainer(), aNode)) {
|
|
// If the current parent is a root (body or table element)
|
|
// then go no further - we can't insert.
|
|
if (pointToInsert.IsContainerHTMLElement(nsGkAtoms::body) ||
|
|
HTMLEditUtils::IsTableElement(pointToInsert.GetContainer())) {
|
|
return EditorDOMPoint();
|
|
}
|
|
|
|
// Get the next point.
|
|
pointToInsert.Set(pointToInsert.GetContainer());
|
|
if (NS_WARN_IF(!pointToInsert.IsSet())) {
|
|
return EditorDOMPoint();
|
|
}
|
|
|
|
if (!IsEditable(pointToInsert.GetContainer())) {
|
|
// There's no suitable place to put the node in this editing host. Maybe
|
|
// someone is trying to put block content in a span. So just put it
|
|
// where we were originally asked.
|
|
pointToInsert = aPointToInsert;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (pointToInsert != aPointToInsert) {
|
|
// We need to split some levels above the original selection parent.
|
|
MOZ_ASSERT(pointToInsert.GetChild());
|
|
SplitNodeResult splitNodeResult =
|
|
SplitNodeDeepWithTransaction(*pointToInsert.GetChild(),
|
|
aPointToInsert, aSplitAtEdges);
|
|
if (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return EditorDOMPoint();
|
|
}
|
|
pointToInsert = splitNodeResult.SplitPoint();
|
|
MOZ_ASSERT(pointToInsert.IsSet());
|
|
}
|
|
|
|
{
|
|
// After inserting a node, pointToInsert will refer next sibling of
|
|
// the new node but keep referring the new node's offset.
|
|
// This method's result should be the point at insertion, it's useful
|
|
// even if the new node is moved by mutation observer immediately.
|
|
// So, let's lock only the offset and child node should be recomputed
|
|
// when it's necessary.
|
|
AutoEditorDOMPointChildInvalidator lockOffset(pointToInsert);
|
|
// Now we can insert the new node.
|
|
nsresult rv = InsertNodeWithTransaction(aNode, pointToInsert);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return EditorDOMPoint();
|
|
}
|
|
}
|
|
return pointToInsert;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::SelectElement(Element* aElement)
|
|
{
|
|
// Must be sure that element is contained in the document body
|
|
if (!IsDescendantOfEditorRoot(aElement)) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
|
|
nsINode* parent = aElement->GetParentNode();
|
|
if (NS_WARN_IF(!parent)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
int32_t offsetInParent = parent->ComputeIndexOf(aElement);
|
|
|
|
// Collapse selection to just before desired element,
|
|
nsresult rv = selection->Collapse(parent, offsetInParent);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// then extend it to just after
|
|
rv = selection->Extend(parent, offsetInParent + 1);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::SetCaretAfterElement(Element* aElement)
|
|
{
|
|
// Be sure the element is contained in the document body
|
|
if (!aElement || !IsDescendantOfEditorRoot(aElement)) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
|
|
nsCOMPtr<nsINode> parent = aElement->GetParentNode();
|
|
NS_ENSURE_TRUE(parent, NS_ERROR_NULL_POINTER);
|
|
// Collapse selection to just after desired element,
|
|
EditorRawDOMPoint afterElement(aElement);
|
|
if (NS_WARN_IF(!afterElement.AdvanceOffset())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
return selection->Collapse(afterElement);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::SetParagraphFormat(const nsAString& aParagraphFormat)
|
|
{
|
|
nsAutoString lowerCaseTagName(aParagraphFormat);
|
|
ToLowerCase(lowerCaseTagName);
|
|
RefPtr<nsAtom> tagName = NS_Atomize(lowerCaseTagName);
|
|
MOZ_ASSERT(tagName);
|
|
if (tagName == nsGkAtoms::dd || tagName == nsGkAtoms::dt) {
|
|
return MakeDefinitionListItemWithTransaction(*tagName);
|
|
}
|
|
return InsertBasicBlockWithTransaction(*tagName);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::GetParagraphState(bool* aMixed,
|
|
nsAString& outFormat)
|
|
{
|
|
if (!mRules) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
NS_ENSURE_TRUE(aMixed, NS_ERROR_NULL_POINTER);
|
|
RefPtr<HTMLEditRules> htmlRules(mRules->AsHTMLEditRules());
|
|
return htmlRules->GetParagraphState(aMixed, outFormat);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::GetBackgroundColorState(bool* aMixed,
|
|
nsAString& aOutColor)
|
|
{
|
|
if (IsCSSEnabled()) {
|
|
// if we are in CSS mode, we have to check if the containing block defines
|
|
// a background color
|
|
return GetCSSBackgroundColorState(aMixed, aOutColor, true);
|
|
}
|
|
// in HTML mode, we look only at page's background
|
|
return GetHTMLBackgroundColorState(aMixed, aOutColor);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::GetHighlightColorState(bool* aMixed,
|
|
nsAString& aOutColor)
|
|
{
|
|
*aMixed = false;
|
|
aOutColor.AssignLiteral("transparent");
|
|
if (!IsCSSEnabled()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// in CSS mode, text background can be added by the Text Highlight button
|
|
// we need to query the background of the selection without looking for
|
|
// the block container of the ranges in the selection
|
|
return GetCSSBackgroundColorState(aMixed, aOutColor, false);
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::GetCSSBackgroundColorState(bool* aMixed,
|
|
nsAString& aOutColor,
|
|
bool aBlockLevel)
|
|
{
|
|
NS_ENSURE_TRUE(aMixed, NS_ERROR_NULL_POINTER);
|
|
*aMixed = false;
|
|
// the default background color is transparent
|
|
aOutColor.AssignLiteral("transparent");
|
|
|
|
// get selection
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_STATE(selection && selection->GetRangeAt(0));
|
|
|
|
// get selection location
|
|
nsCOMPtr<nsINode> parent = selection->GetRangeAt(0)->GetStartContainer();
|
|
NS_ENSURE_TRUE(parent, NS_ERROR_NULL_POINTER);
|
|
|
|
// is the selection collapsed?
|
|
nsCOMPtr<nsINode> nodeToExamine;
|
|
if (selection->IsCollapsed() || IsTextNode(parent)) {
|
|
// we want to look at the parent and ancestors
|
|
nodeToExamine = parent;
|
|
} else {
|
|
// otherwise we want to look at the first editable node after
|
|
// {parent,offset} and its ancestors for divs with alignment on them
|
|
nodeToExamine = selection->GetRangeAt(0)->GetChildAtStartOffset();
|
|
//GetNextNode(parent, offset, true, address_of(nodeToExamine));
|
|
}
|
|
|
|
NS_ENSURE_TRUE(nodeToExamine, NS_ERROR_NULL_POINTER);
|
|
|
|
if (aBlockLevel) {
|
|
// we are querying the block background (and not the text background), let's
|
|
// climb to the block container
|
|
nsCOMPtr<Element> blockParent = GetBlock(*nodeToExamine);
|
|
NS_ENSURE_TRUE(blockParent, NS_OK);
|
|
|
|
// Make sure to not walk off onto the Document node
|
|
do {
|
|
// retrieve the computed style of background-color for blockParent
|
|
CSSEditUtils::GetComputedProperty(*blockParent,
|
|
*nsGkAtoms::backgroundColor,
|
|
aOutColor);
|
|
blockParent = blockParent->GetParentElement();
|
|
// look at parent if the queried color is transparent and if the node to
|
|
// examine is not the root of the document
|
|
} while (aOutColor.EqualsLiteral("transparent") && blockParent);
|
|
if (aOutColor.EqualsLiteral("transparent")) {
|
|
// we have hit the root of the document and the color is still transparent !
|
|
// Grumble... Let's look at the default background color because that's the
|
|
// color we are looking for
|
|
CSSEditUtils::GetDefaultBackgroundColor(aOutColor);
|
|
}
|
|
}
|
|
else {
|
|
// no, we are querying the text background for the Text Highlight button
|
|
if (IsTextNode(nodeToExamine)) {
|
|
// if the node of interest is a text node, let's climb a level
|
|
nodeToExamine = nodeToExamine->GetParentNode();
|
|
}
|
|
// Return default value due to no parent node
|
|
if (!nodeToExamine) {
|
|
return NS_OK;
|
|
}
|
|
do {
|
|
// is the node to examine a block ?
|
|
if (NodeIsBlockStatic(nodeToExamine)) {
|
|
// yes it is a block; in that case, the text background color is transparent
|
|
aOutColor.AssignLiteral("transparent");
|
|
break;
|
|
} else {
|
|
// no, it's not; let's retrieve the computed style of background-color for the
|
|
// node to examine
|
|
CSSEditUtils::GetComputedProperty(*nodeToExamine,
|
|
*nsGkAtoms::backgroundColor,
|
|
aOutColor);
|
|
if (!aOutColor.EqualsLiteral("transparent")) {
|
|
break;
|
|
}
|
|
}
|
|
nodeToExamine = nodeToExamine->GetParentNode();
|
|
} while ( aOutColor.EqualsLiteral("transparent") && nodeToExamine );
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::GetHTMLBackgroundColorState(bool* aMixed,
|
|
nsAString& aOutColor)
|
|
{
|
|
//TODO: We don't handle "mixed" correctly!
|
|
NS_ENSURE_TRUE(aMixed, NS_ERROR_NULL_POINTER);
|
|
*aMixed = false;
|
|
aOutColor.Truncate();
|
|
|
|
RefPtr<Element> element;
|
|
int32_t selectedCount;
|
|
nsAutoString tagName;
|
|
nsresult rv = GetSelectedOrParentTableElement(tagName,
|
|
&selectedCount,
|
|
getter_AddRefs(element));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
while (element) {
|
|
// We are in a cell or selected table
|
|
element->GetAttr(kNameSpaceID_None, nsGkAtoms::bgcolor, aOutColor);
|
|
|
|
// Done if we have a color explicitly set
|
|
if (!aOutColor.IsEmpty()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Once we hit the body, we're done
|
|
if (element->IsHTMLElement(nsGkAtoms::body)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// No color is set, but we need to report visible color inherited
|
|
// from nested cells/tables, so search up parent chain
|
|
element = element->GetParentElement();
|
|
}
|
|
|
|
// If no table or cell found, get page body
|
|
dom::Element* bodyElement = GetRoot();
|
|
NS_ENSURE_TRUE(bodyElement, NS_ERROR_NULL_POINTER);
|
|
|
|
bodyElement->GetAttr(kNameSpaceID_None, nsGkAtoms::bgcolor, aOutColor);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::GetListState(bool* aMixed,
|
|
bool* aOL,
|
|
bool* aUL,
|
|
bool* aDL)
|
|
{
|
|
if (!mRules) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
NS_ENSURE_TRUE(aMixed && aOL && aUL && aDL, NS_ERROR_NULL_POINTER);
|
|
RefPtr<HTMLEditRules> htmlRules(mRules->AsHTMLEditRules());
|
|
return htmlRules->GetListState(aMixed, aOL, aUL, aDL);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::GetListItemState(bool* aMixed,
|
|
bool* aLI,
|
|
bool* aDT,
|
|
bool* aDD)
|
|
{
|
|
if (!mRules) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
NS_ENSURE_TRUE(aMixed && aLI && aDT && aDD, NS_ERROR_NULL_POINTER);
|
|
|
|
RefPtr<HTMLEditRules> htmlRules(mRules->AsHTMLEditRules());
|
|
return htmlRules->GetListItemState(aMixed, aLI, aDT, aDD);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::GetAlignment(bool* aMixed,
|
|
nsIHTMLEditor::EAlignment* aAlign)
|
|
{
|
|
if (!mRules) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
NS_ENSURE_TRUE(aMixed && aAlign, NS_ERROR_NULL_POINTER);
|
|
|
|
RefPtr<HTMLEditRules> htmlRules(mRules->AsHTMLEditRules());
|
|
return htmlRules->GetAlignment(aMixed, aAlign);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::GetIndentState(bool* aCanIndent,
|
|
bool* aCanOutdent)
|
|
{
|
|
if (!mRules) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
NS_ENSURE_TRUE(aCanIndent && aCanOutdent, NS_ERROR_NULL_POINTER);
|
|
|
|
RefPtr<HTMLEditRules> htmlRules(mRules->AsHTMLEditRules());
|
|
return htmlRules->GetIndentState(aCanIndent, aCanOutdent);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::MakeOrChangeList(const nsAString& aListType,
|
|
bool entireList,
|
|
const nsAString& aBulletType)
|
|
{
|
|
if (!mRules) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
// Protect the edit rules object from dying
|
|
RefPtr<TextEditRules> rules(mRules);
|
|
|
|
bool cancel, handled;
|
|
|
|
AutoPlaceholderBatch beginBatching(this);
|
|
AutoRules beginRulesSniffing(this, EditAction::makeList, nsIEditor::eNext);
|
|
|
|
// pre-process
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
|
|
|
|
RulesInfo ruleInfo(EditAction::makeList);
|
|
ruleInfo.blockType = &aListType;
|
|
ruleInfo.entireList = entireList;
|
|
ruleInfo.bulletType = &aBulletType;
|
|
nsresult rv = rules->WillDoAction(selection, &ruleInfo, &cancel, &handled);
|
|
if (cancel || NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
if (!handled && selection->IsCollapsed()) {
|
|
nsRange* firstRange = selection->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorRawDOMPoint atStartOfSelection(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet()) ||
|
|
NS_WARN_IF(!atStartOfSelection.GetContainerAsContent())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Have to find a place to put the list.
|
|
EditorDOMPoint pointToInsertList(atStartOfSelection);
|
|
|
|
RefPtr<nsAtom> listAtom = NS_Atomize(aListType);
|
|
while (!CanContainTag(*pointToInsertList.GetContainer(), *listAtom)) {
|
|
pointToInsertList.Set(pointToInsertList.GetContainer());
|
|
if (NS_WARN_IF(!pointToInsertList.IsSet()) ||
|
|
NS_WARN_IF(!pointToInsertList.GetContainerAsContent())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
if (pointToInsertList.GetContainer() != atStartOfSelection.GetContainer()) {
|
|
// We need to split up to the child of parent.
|
|
SplitNodeResult splitNodeResult =
|
|
SplitNodeDeepWithTransaction(
|
|
*pointToInsertList.GetChild(), atStartOfSelection,
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (NS_WARN_IF(splitNodeResult.Failed())) {
|
|
return splitNodeResult.Rv();
|
|
}
|
|
pointToInsertList = splitNodeResult.SplitPoint();
|
|
if (NS_WARN_IF(!pointToInsertList.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
// Create a list and insert it before the right node if we split some
|
|
// parents of start of selection above, or just start of selection
|
|
// otherwise.
|
|
RefPtr<Element> newList =
|
|
CreateNodeWithTransaction(*listAtom, pointToInsertList);
|
|
if (NS_WARN_IF(!newList)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// make a list item
|
|
EditorRawDOMPoint atStartOfNewList(newList, 0);
|
|
RefPtr<Element> newItem =
|
|
CreateNodeWithTransaction(*nsGkAtoms::li, atStartOfNewList);
|
|
if (NS_WARN_IF(!newItem)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
ErrorResult error;
|
|
selection->Collapse(RawRangeBoundary(newItem, 0), error);
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
}
|
|
|
|
return rules->DidDoAction(selection, &ruleInfo, rv);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::RemoveList(const nsAString& aListType)
|
|
{
|
|
if (!mRules) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
// Protect the edit rules object from dying
|
|
RefPtr<TextEditRules> rules(mRules);
|
|
|
|
bool cancel, handled;
|
|
|
|
AutoPlaceholderBatch beginBatching(this);
|
|
AutoRules beginRulesSniffing(this, EditAction::removeList, nsIEditor::eNext);
|
|
|
|
// pre-process
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
|
|
|
|
RulesInfo ruleInfo(EditAction::removeList);
|
|
if (aListType.LowerCaseEqualsLiteral("ol")) {
|
|
ruleInfo.bOrdered = true;
|
|
} else {
|
|
ruleInfo.bOrdered = false;
|
|
}
|
|
nsresult rv = rules->WillDoAction(selection, &ruleInfo, &cancel, &handled);
|
|
if (cancel || NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
// no default behavior for this yet. what would it mean?
|
|
|
|
return rules->DidDoAction(selection, &ruleInfo, rv);
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::MakeDefinitionListItemWithTransaction(nsAtom& aTagName)
|
|
{
|
|
if (!mRules) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
MOZ_ASSERT(&aTagName == nsGkAtoms::dt ||
|
|
&aTagName == nsGkAtoms::dd);
|
|
|
|
// Protect the edit rules object from dying
|
|
RefPtr<TextEditRules> rules(mRules);
|
|
|
|
bool cancel, handled;
|
|
|
|
AutoPlaceholderBatch beginBatching(this);
|
|
AutoRules beginRulesSniffing(this, EditAction::makeDefListItem,
|
|
nsIEditor::eNext);
|
|
|
|
// pre-process
|
|
RefPtr<Selection> selection = GetSelection();
|
|
if (NS_WARN_IF(!selection)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsDependentAtomString tagName(&aTagName);
|
|
RulesInfo ruleInfo(EditAction::makeDefListItem);
|
|
ruleInfo.blockType = &tagName;
|
|
nsresult rv = rules->WillDoAction(selection, &ruleInfo, &cancel, &handled);
|
|
if (cancel || NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
if (!handled) {
|
|
// todo: no default for now. we count on rules to handle it.
|
|
}
|
|
|
|
return rules->DidDoAction(selection, &ruleInfo, rv);
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::InsertBasicBlockWithTransaction(nsAtom& aTagName)
|
|
{
|
|
if (!mRules) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
MOZ_ASSERT(&aTagName != nsGkAtoms::dd &&
|
|
&aTagName != nsGkAtoms::dt);
|
|
|
|
// Protect the edit rules object from dying
|
|
RefPtr<TextEditRules> rules(mRules);
|
|
|
|
bool cancel, handled;
|
|
|
|
AutoPlaceholderBatch beginBatching(this);
|
|
AutoRules beginRulesSniffing(this, EditAction::makeBasicBlock,
|
|
nsIEditor::eNext);
|
|
|
|
// pre-process
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
|
|
nsDependentAtomString tagName(&aTagName);
|
|
RulesInfo ruleInfo(EditAction::makeBasicBlock);
|
|
ruleInfo.blockType = &tagName;
|
|
nsresult rv = rules->WillDoAction(selection, &ruleInfo, &cancel, &handled);
|
|
if (cancel || NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
if (!handled && selection->IsCollapsed()) {
|
|
nsRange* firstRange = selection->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorRawDOMPoint atStartOfSelection(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet()) ||
|
|
NS_WARN_IF(!atStartOfSelection.GetContainerAsContent())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Have to find a place to put the block.
|
|
EditorDOMPoint pointToInsertBlock(atStartOfSelection);
|
|
|
|
while (!CanContainTag(*pointToInsertBlock.GetContainer(), aTagName)) {
|
|
pointToInsertBlock.Set(pointToInsertBlock.GetContainer());
|
|
if (NS_WARN_IF(!pointToInsertBlock.IsSet()) ||
|
|
NS_WARN_IF(!pointToInsertBlock.GetContainerAsContent())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
if (pointToInsertBlock.GetContainer() !=
|
|
atStartOfSelection.GetContainer()) {
|
|
// We need to split up to the child of the point to insert a block.
|
|
SplitNodeResult splitBlockResult =
|
|
SplitNodeDeepWithTransaction(
|
|
*pointToInsertBlock.GetChild(), atStartOfSelection,
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (NS_WARN_IF(splitBlockResult.Failed())) {
|
|
return splitBlockResult.Rv();
|
|
}
|
|
pointToInsertBlock = splitBlockResult.SplitPoint();
|
|
if (NS_WARN_IF(!pointToInsertBlock.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
// Create a block and insert it before the right node if we split some
|
|
// parents of start of selection above, or just start of selection
|
|
// otherwise.
|
|
RefPtr<Element> newBlock =
|
|
CreateNodeWithTransaction(aTagName, pointToInsertBlock);
|
|
if (NS_WARN_IF(!newBlock)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// reposition selection to inside the block
|
|
ErrorResult error;
|
|
selection->Collapse(RawRangeBoundary(newBlock, 0), error);
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
}
|
|
|
|
return rules->DidDoAction(selection, &ruleInfo, rv);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::Indent(const nsAString& aIndent)
|
|
{
|
|
if (!mRules) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
// Protect the edit rules object from dying
|
|
RefPtr<TextEditRules> rules(mRules);
|
|
|
|
bool cancel, handled;
|
|
EditAction opID = EditAction::indent;
|
|
if (aIndent.LowerCaseEqualsLiteral("outdent")) {
|
|
opID = EditAction::outdent;
|
|
}
|
|
AutoPlaceholderBatch beginBatching(this);
|
|
AutoRules beginRulesSniffing(this, opID, nsIEditor::eNext);
|
|
|
|
// pre-process
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
|
|
|
|
RulesInfo ruleInfo(opID);
|
|
nsresult rv = rules->WillDoAction(selection, &ruleInfo, &cancel, &handled);
|
|
if (cancel || NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
if (!handled && selection->IsCollapsed() && aIndent.EqualsLiteral("indent")) {
|
|
nsRange* firstRange = selection->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
EditorRawDOMPoint atStartOfSelection(firstRange->StartRef());
|
|
if (NS_WARN_IF(!atStartOfSelection.IsSet()) ||
|
|
NS_WARN_IF(!atStartOfSelection.GetContainerAsContent())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Have to find a place to put the blockquote.
|
|
EditorDOMPoint pointToInsertBlockquote(atStartOfSelection);
|
|
|
|
while (!CanContainTag(*pointToInsertBlockquote.GetContainer(),
|
|
*nsGkAtoms::blockquote)) {
|
|
pointToInsertBlockquote.Set(pointToInsertBlockquote.GetContainer());
|
|
if (NS_WARN_IF(!pointToInsertBlockquote.IsSet()) ||
|
|
NS_WARN_IF(!pointToInsertBlockquote.GetContainerAsContent())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
if (pointToInsertBlockquote.GetContainer() !=
|
|
atStartOfSelection.GetContainer()) {
|
|
// We need to split up to the child of parent.
|
|
SplitNodeResult splitBlockquoteResult =
|
|
SplitNodeDeepWithTransaction(
|
|
*pointToInsertBlockquote.GetChild(), atStartOfSelection,
|
|
SplitAtEdges::eAllowToCreateEmptyContainer);
|
|
if (NS_WARN_IF(splitBlockquoteResult.Failed())) {
|
|
return splitBlockquoteResult.Rv();
|
|
}
|
|
pointToInsertBlockquote = splitBlockquoteResult.SplitPoint();
|
|
if (NS_WARN_IF(!pointToInsertBlockquote.IsSet())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
// Create a list and insert it before the right node if we split some
|
|
// parents of start of selection above, or just start of selection
|
|
// otherwise.
|
|
RefPtr<Element> newBQ =
|
|
CreateNodeWithTransaction(*nsGkAtoms::blockquote,
|
|
pointToInsertBlockquote);
|
|
if (NS_WARN_IF(!newBQ)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// put a space in it so layout will draw the list item
|
|
ErrorResult error;
|
|
selection->Collapse(RawRangeBoundary(newBQ, 0), error);
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
rv = InsertTextAsAction(NS_LITERAL_STRING(" "));
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
// Reposition selection to before the space character.
|
|
firstRange = selection->GetRangeAt(0);
|
|
if (NS_WARN_IF(!firstRange)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
selection->Collapse(RawRangeBoundary(firstRange->GetStartContainer(), 0),
|
|
error);
|
|
if (NS_WARN_IF(error.Failed())) {
|
|
return error.StealNSResult();
|
|
}
|
|
}
|
|
return rules->DidDoAction(selection, &ruleInfo, rv);
|
|
}
|
|
|
|
//TODO: IMPLEMENT ALIGNMENT!
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::Align(const nsAString& aAlignType)
|
|
{
|
|
// Protect the edit rules object from dying
|
|
RefPtr<TextEditRules> rules(mRules);
|
|
|
|
AutoPlaceholderBatch beginBatching(this);
|
|
AutoRules beginRulesSniffing(this, EditAction::align, nsIEditor::eNext);
|
|
|
|
bool cancel, handled;
|
|
|
|
// Find out if the selection is collapsed:
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
|
|
RulesInfo ruleInfo(EditAction::align);
|
|
ruleInfo.alignType = &aAlignType;
|
|
nsresult rv = rules->WillDoAction(selection, &ruleInfo, &cancel, &handled);
|
|
if (cancel || NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
return rules->DidDoAction(selection, &ruleInfo, rv);
|
|
}
|
|
|
|
already_AddRefed<Element>
|
|
HTMLEditor::GetElementOrParentByTagName(const nsAString& aTagName,
|
|
nsINode* aNode)
|
|
{
|
|
MOZ_ASSERT(!aTagName.IsEmpty());
|
|
|
|
nsCOMPtr<nsINode> node = aNode;
|
|
if (!node) {
|
|
// If no node supplied, get it from anchor node of current selection
|
|
RefPtr<Selection> selection = GetSelection();
|
|
if (NS_WARN_IF(!selection)) {
|
|
return nullptr;
|
|
}
|
|
|
|
const EditorDOMPoint atAnchor(selection->AnchorRef());
|
|
if (NS_WARN_IF(!atAnchor.IsSet())) {
|
|
return nullptr;
|
|
}
|
|
|
|
// Try to get the actual selected node
|
|
if (atAnchor.GetContainer()->HasChildNodes() &&
|
|
atAnchor.GetContainerAsContent()) {
|
|
node = atAnchor.GetChild();
|
|
}
|
|
// Anchor node is probably a text node - just use that
|
|
if (!node) {
|
|
node = atAnchor.GetContainer();
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<Element> current;
|
|
if (node->IsElement()) {
|
|
current = node->AsElement();
|
|
} else if (node->GetParentElement()) {
|
|
current = node->GetParentElement();
|
|
} else {
|
|
// Neither aNode nor its parent is an element, so no ancestor is
|
|
MOZ_ASSERT(!node->GetParentNode() ||
|
|
!node->GetParentNode()->GetParentNode());
|
|
return nullptr;
|
|
}
|
|
|
|
nsAutoString tagName(aTagName);
|
|
ToLowerCase(tagName);
|
|
bool getLink = IsLinkTag(tagName);
|
|
bool getNamedAnchor = IsNamedAnchorTag(tagName);
|
|
if (getLink || getNamedAnchor) {
|
|
tagName.Assign('a');
|
|
}
|
|
bool findTableCell = tagName.EqualsLiteral("td");
|
|
bool findList = tagName.EqualsLiteral("list");
|
|
|
|
for (; current; current = current->GetParentElement()) {
|
|
// Test if we have a link (an anchor with href set)
|
|
if ((getLink && HTMLEditUtils::IsLink(current)) ||
|
|
(getNamedAnchor && HTMLEditUtils::IsNamedAnchor(current))) {
|
|
return current.forget();
|
|
}
|
|
if (findList) {
|
|
// Match "ol", "ul", or "dl" for lists
|
|
if (HTMLEditUtils::IsList(current)) {
|
|
return current.forget();
|
|
}
|
|
} else if (findTableCell) {
|
|
// Table cells are another special case: match either "td" or "th"
|
|
if (HTMLEditUtils::IsTableCell(current)) {
|
|
return current.forget();
|
|
}
|
|
} else if (current->NodeName().Equals(tagName,
|
|
nsCaseInsensitiveStringComparator())) {
|
|
return current.forget();
|
|
}
|
|
|
|
// Stop searching if parent is a body tag. Note: Originally used IsRoot to
|
|
// stop at table cells, but that's too messy when you are trying to find
|
|
// the parent table
|
|
if (current->GetParentElement() &&
|
|
current->GetParentElement()->IsHTMLElement(nsGkAtoms::body)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::GetElementOrParentByTagName(const nsAString& aTagName,
|
|
nsINode* aNode,
|
|
Element** aReturn)
|
|
{
|
|
NS_ENSURE_TRUE(!aTagName.IsEmpty(), NS_ERROR_NULL_POINTER);
|
|
NS_ENSURE_TRUE(aReturn, NS_ERROR_NULL_POINTER);
|
|
|
|
RefPtr<Element> parent = GetElementOrParentByTagName(aTagName, aNode);
|
|
|
|
if (!parent) {
|
|
return NS_SUCCESS_EDITOR_ELEMENT_NOT_FOUND;
|
|
}
|
|
|
|
parent.forget(aReturn);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::GetSelectedElement(const nsAString& aTagName,
|
|
nsISupports** aReturn)
|
|
{
|
|
NS_ENSURE_TRUE(aReturn , NS_ERROR_NULL_POINTER);
|
|
|
|
// default is null - no element found
|
|
*aReturn = nullptr;
|
|
|
|
// First look for a single element in selection
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
|
|
|
|
bool isCollapsed = selection->IsCollapsed();
|
|
|
|
nsAutoString domTagName;
|
|
nsAutoString TagName(aTagName);
|
|
ToLowerCase(TagName);
|
|
// Empty string indicates we should match any element tag
|
|
bool anyTag = (TagName.IsEmpty());
|
|
bool isLinkTag = IsLinkTag(TagName);
|
|
bool isNamedAnchorTag = IsNamedAnchorTag(TagName);
|
|
|
|
RefPtr<nsRange> range = selection->GetRangeAt(0);
|
|
NS_ENSURE_STATE(range);
|
|
|
|
nsCOMPtr<nsINode> startContainer = range->GetStartContainer();
|
|
nsIContent* startNode = range->GetChildAtStartOffset();
|
|
|
|
nsCOMPtr<nsINode> endContainer = range->GetEndContainer();
|
|
nsIContent* endNode = range->GetChildAtEndOffset();
|
|
|
|
// Optimization for a single selected element
|
|
if (startContainer && startContainer == endContainer &&
|
|
startNode && endNode && startNode->GetNextSibling() == endNode) {
|
|
nsCOMPtr<nsINode> selectedNode = startNode;
|
|
if (selectedNode) {
|
|
domTagName = selectedNode->NodeName();
|
|
ToLowerCase(domTagName);
|
|
|
|
// Test for appropriate node type requested
|
|
if (anyTag || (TagName == domTagName) ||
|
|
(isLinkTag && HTMLEditUtils::IsLink(selectedNode)) ||
|
|
(isNamedAnchorTag && HTMLEditUtils::IsNamedAnchor(selectedNode))) {
|
|
selectedNode.forget(aReturn);
|
|
return NS_OK;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool bNodeFound = false;
|
|
nsCOMPtr<Element> selectedElement;
|
|
if (isLinkTag) {
|
|
// Link tag is a special case - we return the anchor node
|
|
// found for any selection that is totally within a link,
|
|
// included a collapsed selection (just a caret in a link)
|
|
const RangeBoundary& anchor = selection->AnchorRef();
|
|
const RangeBoundary& focus = selection->FocusRef();
|
|
// Link node must be the same for both ends of selection
|
|
if (anchor.IsSet()) {
|
|
RefPtr<Element> parentLinkOfAnchor =
|
|
GetElementOrParentByTagName(NS_LITERAL_STRING("href"),
|
|
anchor.Container());
|
|
// XXX: ERROR_HANDLING can parentLinkOfAnchor be null?
|
|
if (parentLinkOfAnchor) {
|
|
if (isCollapsed) {
|
|
// We have just a caret in the link
|
|
bNodeFound = true;
|
|
} else if (focus.IsSet()) {
|
|
// Link node must be the same for both ends of selection.
|
|
RefPtr<Element> parentLinkOfFocus =
|
|
GetElementOrParentByTagName(NS_LITERAL_STRING("href"),
|
|
focus.Container());
|
|
if (parentLinkOfFocus == parentLinkOfAnchor) {
|
|
bNodeFound = true;
|
|
}
|
|
}
|
|
|
|
// We found a link node parent
|
|
if (bNodeFound) {
|
|
parentLinkOfAnchor.forget(aReturn);
|
|
return NS_OK;
|
|
}
|
|
} else if (anchor.GetChildAtOffset() && focus.GetChildAtOffset()) {
|
|
// Check if link node is the only thing selected
|
|
if (HTMLEditUtils::IsLink(anchor.GetChildAtOffset()) &&
|
|
anchor.Container() == focus.Container() &&
|
|
focus.GetChildAtOffset() ==
|
|
anchor.GetChildAtOffset()->GetNextSibling()) {
|
|
selectedElement = do_QueryInterface(anchor.GetChildAtOffset());
|
|
bNodeFound = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!isCollapsed) {
|
|
RefPtr<nsRange> currange = selection->GetRangeAt(0);
|
|
if (currange) {
|
|
nsresult rv;
|
|
nsCOMPtr<nsIContentIterator> iter =
|
|
do_CreateInstance("@mozilla.org/content/post-content-iterator;1",
|
|
&rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
iter->Init(currange);
|
|
// loop through the content iterator for each content node
|
|
while (!iter->IsDone()) {
|
|
// Query interface to cast nsIContent to nsIDOMNode
|
|
// then get tagType to compare to aTagName
|
|
// Clone node of each desired type and append it to the aDomFrag
|
|
nsINode* currentNode = iter->GetCurrentNode();
|
|
selectedElement = do_QueryInterface(currentNode);
|
|
if (selectedElement) {
|
|
// If we already found a node, then we have another element,
|
|
// thus there's not just one element selected
|
|
if (bNodeFound) {
|
|
bNodeFound = false;
|
|
break;
|
|
}
|
|
|
|
domTagName = currentNode->NodeName();
|
|
ToLowerCase(domTagName);
|
|
|
|
if (anyTag) {
|
|
// Get name of first selected element
|
|
selectedElement->GetTagName(TagName);
|
|
ToLowerCase(TagName);
|
|
anyTag = false;
|
|
}
|
|
|
|
// The "A" tag is a pain,
|
|
// used for both link(href is set) and "Named Anchor"
|
|
if ((isLinkTag &&
|
|
HTMLEditUtils::IsLink(selectedElement)) ||
|
|
(isNamedAnchorTag &&
|
|
HTMLEditUtils::IsNamedAnchor(selectedElement))) {
|
|
bNodeFound = true;
|
|
} else if (TagName == domTagName) { // All other tag names are handled here
|
|
bNodeFound = true;
|
|
}
|
|
if (!bNodeFound) {
|
|
// Check if node we have is really part of the selection???
|
|
break;
|
|
}
|
|
}
|
|
iter->Next();
|
|
}
|
|
} else {
|
|
// Should never get here?
|
|
isCollapsed = true;
|
|
NS_WARNING("isCollapsed was FALSE, but no elements found in selection\n");
|
|
}
|
|
}
|
|
|
|
selectedElement.forget(aReturn);
|
|
return NS_OK;
|
|
}
|
|
|
|
already_AddRefed<Element>
|
|
HTMLEditor::GetSelectedElement(const nsAString& aTagName)
|
|
{
|
|
nsCOMPtr<nsISupports> domElement;
|
|
GetSelectedElement(aTagName, getter_AddRefs(domElement));
|
|
nsCOMPtr<Element> element = do_QueryInterface(domElement);
|
|
return element.forget();
|
|
}
|
|
|
|
already_AddRefed<Element>
|
|
HTMLEditor::CreateElementWithDefaults(const nsAString& aTagName)
|
|
{
|
|
MOZ_ASSERT(!aTagName.IsEmpty());
|
|
|
|
nsAutoString tagName(aTagName);
|
|
ToLowerCase(tagName);
|
|
nsAutoString realTagName;
|
|
|
|
if (IsLinkTag(tagName) || IsNamedAnchorTag(tagName)) {
|
|
realTagName.Assign('a');
|
|
} else {
|
|
realTagName = tagName;
|
|
}
|
|
// We don't use editor's CreateElement because we don't want to go through
|
|
// the transaction system
|
|
|
|
// New call to use instead to get proper HTML element, bug 39919
|
|
RefPtr<nsAtom> realTagAtom = NS_Atomize(realTagName);
|
|
RefPtr<Element> newElement = CreateHTMLContent(realTagAtom);
|
|
if (!newElement) {
|
|
return nullptr;
|
|
}
|
|
|
|
// Mark the new element dirty, so it will be formatted
|
|
ErrorResult rv;
|
|
newElement->SetAttribute(NS_LITERAL_STRING("_moz_dirty"), EmptyString(), rv);
|
|
|
|
// Set default values for new elements
|
|
if (tagName.EqualsLiteral("table")) {
|
|
newElement->SetAttribute(NS_LITERAL_STRING("cellpadding"),
|
|
NS_LITERAL_STRING("2"), rv);
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
rv.SuppressException();
|
|
return nullptr;
|
|
}
|
|
newElement->SetAttribute(NS_LITERAL_STRING("cellspacing"),
|
|
NS_LITERAL_STRING("2"), rv);
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
rv.SuppressException();
|
|
return nullptr;
|
|
}
|
|
newElement->SetAttribute(NS_LITERAL_STRING("border"),
|
|
NS_LITERAL_STRING("1"), rv);
|
|
if (NS_WARN_IF(rv.Failed())) {
|
|
rv.SuppressException();
|
|
return nullptr;
|
|
}
|
|
} else if (tagName.EqualsLiteral("td")) {
|
|
nsresult rv =
|
|
SetAttributeOrEquivalent(
|
|
newElement, nsGkAtoms::valign, NS_LITERAL_STRING("top"), true);
|
|
NS_ENSURE_SUCCESS(rv, nullptr);
|
|
}
|
|
// ADD OTHER TAGS HERE
|
|
|
|
return newElement.forget();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::CreateElementWithDefaults(const nsAString& aTagName,
|
|
Element** aReturn)
|
|
{
|
|
NS_ENSURE_TRUE(!aTagName.IsEmpty() && aReturn, NS_ERROR_NULL_POINTER);
|
|
*aReturn = nullptr;
|
|
|
|
nsCOMPtr<Element> newElement = CreateElementWithDefaults(aTagName);
|
|
NS_ENSURE_TRUE(newElement, NS_ERROR_FAILURE);
|
|
|
|
newElement.forget(aReturn);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::InsertLinkAroundSelection(Element* aAnchorElement)
|
|
{
|
|
NS_ENSURE_TRUE(aAnchorElement, NS_ERROR_NULL_POINTER);
|
|
|
|
// We must have a real selection
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_NULL_POINTER);
|
|
|
|
if (selection->IsCollapsed()) {
|
|
NS_WARNING("InsertLinkAroundSelection called but there is no selection!!!");
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
// Be sure we were given an anchor element
|
|
RefPtr<HTMLAnchorElement> anchor =
|
|
HTMLAnchorElement::FromNodeOrNull(aAnchorElement);
|
|
if (!anchor) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsAutoString href;
|
|
anchor->GetHref(href);
|
|
if (href.IsEmpty()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult rv;
|
|
AutoPlaceholderBatch beginBatching(this);
|
|
|
|
// Set all attributes found on the supplied anchor element
|
|
RefPtr<nsDOMAttributeMap> attrMap = anchor->Attributes();
|
|
NS_ENSURE_TRUE(attrMap, NS_ERROR_FAILURE);
|
|
|
|
uint32_t count = attrMap->Length();
|
|
nsAutoString value;
|
|
|
|
for (uint32_t i = 0; i < count; ++i) {
|
|
RefPtr<Attr> attribute = attrMap->Item(i);
|
|
|
|
if (attribute) {
|
|
// We must clear the string buffers
|
|
// because GetValue appends to previous string!
|
|
value.Truncate();
|
|
|
|
nsAtom* name = attribute->NodeInfo()->NameAtom();
|
|
|
|
attribute->GetValue(value);
|
|
|
|
rv = SetInlineProperty(nsGkAtoms::a, name, value);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::SetHTMLBackgroundColorWithTransaction(const nsAString& aColor)
|
|
{
|
|
MOZ_ASSERT(IsInitialized(), "The HTMLEditor hasn't been initialized yet");
|
|
|
|
// Find a selected or enclosing table element to set background on
|
|
RefPtr<Element> element;
|
|
int32_t selectedCount;
|
|
nsAutoString tagName;
|
|
nsresult rv = GetSelectedOrParentTableElement(tagName, &selectedCount,
|
|
getter_AddRefs(element));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
bool setColor = !aColor.IsEmpty();
|
|
|
|
RefPtr<nsAtom> bgColorAtom = NS_Atomize("bgcolor");
|
|
if (element) {
|
|
if (selectedCount > 0) {
|
|
// Traverse all selected cells
|
|
RefPtr<Element> cell;
|
|
rv = GetFirstSelectedCell(nullptr, getter_AddRefs(cell));
|
|
if (NS_SUCCEEDED(rv) && cell) {
|
|
while (cell) {
|
|
rv = setColor ?
|
|
SetAttributeWithTransaction(*cell, *bgColorAtom, aColor) :
|
|
RemoveAttributeWithTransaction(*cell, *bgColorAtom);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
GetNextSelectedCell(nullptr, getter_AddRefs(cell));
|
|
}
|
|
return NS_OK;
|
|
}
|
|
}
|
|
// If we failed to find a cell, fall through to use originally-found element
|
|
} else {
|
|
// No table element -- set the background color on the body tag
|
|
element = GetRoot();
|
|
if (NS_WARN_IF(!element)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
// Use the editor method that goes through the transaction system
|
|
return setColor ?
|
|
SetAttributeWithTransaction(*element, *bgColorAtom, aColor) :
|
|
RemoveAttributeWithTransaction(*element, *bgColorAtom);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::SetBodyAttribute(const nsAString& aAttribute,
|
|
const nsAString& aValue)
|
|
{
|
|
// TODO: Check selection for Cell, Row, Column or table and do color on appropriate level
|
|
|
|
MOZ_ASSERT(IsInitialized(), "The HTMLEditor hasn't been initialized yet");
|
|
|
|
// Set the background color attribute on the body tag
|
|
RefPtr<Element> rootElement = GetRoot();
|
|
if (NS_WARN_IF(!rootElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Use the editor method that goes through the transaction system
|
|
RefPtr<nsAtom> attributeAtom = NS_Atomize(aAttribute);
|
|
return SetAttributeWithTransaction(*rootElement, *attributeAtom, aValue);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::GetLinkedObjects(nsIArray** aNodeList)
|
|
{
|
|
NS_ENSURE_TRUE(aNodeList, NS_ERROR_NULL_POINTER);
|
|
|
|
nsresult rv;
|
|
nsCOMPtr<nsIMutableArray> nodes = do_CreateInstance(NS_ARRAY_CONTRACTID, &rv);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
nsCOMPtr<nsIContentIterator> iter =
|
|
do_CreateInstance("@mozilla.org/content/post-content-iterator;1", &rv);
|
|
NS_ENSURE_TRUE(iter, NS_ERROR_NULL_POINTER);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nsCOMPtr<nsIDocument> doc = GetDocument();
|
|
NS_ENSURE_TRUE(doc, NS_ERROR_UNEXPECTED);
|
|
|
|
iter->Init(doc->GetRootElement());
|
|
|
|
// loop through the content iterator for each content node
|
|
while (!iter->IsDone()) {
|
|
nsCOMPtr<nsIDOMNode> node (do_QueryInterface(iter->GetCurrentNode()));
|
|
if (node) {
|
|
// Let nsURIRefObject make the hard decisions:
|
|
nsCOMPtr<nsIURIRefObject> refObject;
|
|
rv = NS_NewHTMLURIRefObject(getter_AddRefs(refObject), node);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
nodes->AppendElement(refObject);
|
|
}
|
|
}
|
|
iter->Next();
|
|
}
|
|
}
|
|
|
|
nodes.forget(aNodeList);
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::AddStyleSheet(const nsAString& aURL)
|
|
{
|
|
// Enable existing sheet if already loaded.
|
|
if (EnableExistingStyleSheet(aURL)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Lose the previously-loaded sheet so there's nothing to replace
|
|
// This pattern is different from Override methods because
|
|
// we must wait to remove mLastStyleSheetURL and add new sheet
|
|
// at the same time (in StyleSheetLoaded callback) so they are undoable together
|
|
mLastStyleSheetURL.Truncate();
|
|
return ReplaceStyleSheet(aURL);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::ReplaceStyleSheet(const nsAString& aURL)
|
|
{
|
|
// Enable existing sheet if already loaded.
|
|
if (EnableExistingStyleSheet(aURL)) {
|
|
// Disable last sheet if not the same as new one
|
|
if (!mLastStyleSheetURL.IsEmpty() && !mLastStyleSheetURL.Equals(aURL)) {
|
|
return EnableStyleSheet(mLastStyleSheetURL, false);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
// Make sure the pres shell doesn't disappear during the load.
|
|
if (NS_WARN_IF(!IsInitialized())) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
nsCOMPtr<nsIPresShell> ps = GetPresShell();
|
|
NS_ENSURE_TRUE(ps, NS_ERROR_NOT_INITIALIZED);
|
|
|
|
nsCOMPtr<nsIURI> uaURI;
|
|
nsresult rv = NS_NewURI(getter_AddRefs(uaURI), aURL);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
return ps->GetDocument()->CSSLoader()->LoadSheet(
|
|
uaURI, false, nullptr, nullptr, this);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::RemoveStyleSheet(const nsAString& aURL)
|
|
{
|
|
return RemoveStyleSheetWithTransaction(aURL);
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::RemoveStyleSheetWithTransaction(const nsAString& aURL)
|
|
{
|
|
RefPtr<StyleSheet> sheet = GetStyleSheetForURL(aURL);
|
|
if (NS_WARN_IF(!sheet)) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
RefPtr<RemoveStyleSheetTransaction> transaction =
|
|
RemoveStyleSheetTransaction::Create(*this, *sheet);
|
|
nsresult rv = DoTransaction(transaction);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
mLastStyleSheetURL.Truncate(); // forget it
|
|
}
|
|
// Remove it from our internal list
|
|
return RemoveStyleSheetFromList(aURL);
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::AddOverrideStyleSheet(const nsAString& aURL)
|
|
{
|
|
// Enable existing sheet if already loaded.
|
|
if (EnableExistingStyleSheet(aURL)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Make sure the pres shell doesn't disappear during the load.
|
|
nsCOMPtr<nsIPresShell> ps = GetPresShell();
|
|
NS_ENSURE_TRUE(ps, NS_ERROR_NOT_INITIALIZED);
|
|
|
|
nsCOMPtr<nsIURI> uaURI;
|
|
nsresult rv = NS_NewURI(getter_AddRefs(uaURI), aURL);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// We MUST ONLY load synchronous local files (no @import)
|
|
// XXXbz Except this will actually try to load remote files
|
|
// synchronously, of course..
|
|
RefPtr<StyleSheet> sheet;
|
|
// Editor override style sheets may want to style Gecko anonymous boxes
|
|
rv = ps->GetDocument()->CSSLoader()->
|
|
LoadSheetSync(uaURI, mozilla::css::eAgentSheetFeatures, true,
|
|
&sheet);
|
|
|
|
// Synchronous loads should ALWAYS return completed
|
|
NS_ENSURE_TRUE(sheet, NS_ERROR_NULL_POINTER);
|
|
|
|
// Add the override style sheet
|
|
// (This checks if already exists)
|
|
ps->AddOverrideStyleSheet(sheet);
|
|
|
|
ps->RestyleForCSSRuleChanges();
|
|
|
|
// Save as the last-loaded sheet
|
|
mLastOverrideStyleSheetURL = aURL;
|
|
|
|
//Add URL and style sheet to our lists
|
|
return AddNewStyleSheetToList(aURL, sheet);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::ReplaceOverrideStyleSheet(const nsAString& aURL)
|
|
{
|
|
// Enable existing sheet if already loaded.
|
|
if (EnableExistingStyleSheet(aURL)) {
|
|
// Disable last sheet if not the same as new one
|
|
if (!mLastOverrideStyleSheetURL.IsEmpty() &&
|
|
!mLastOverrideStyleSheetURL.Equals(aURL)) {
|
|
return EnableStyleSheet(mLastOverrideStyleSheetURL, false);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
// Remove the previous sheet
|
|
if (!mLastOverrideStyleSheetURL.IsEmpty()) {
|
|
RemoveOverrideStyleSheet(mLastOverrideStyleSheetURL);
|
|
}
|
|
return AddOverrideStyleSheet(aURL);
|
|
}
|
|
|
|
// Do NOT use transaction system for override style sheets
|
|
NS_IMETHODIMP
|
|
HTMLEditor::RemoveOverrideStyleSheet(const nsAString& aURL)
|
|
{
|
|
RefPtr<StyleSheet> sheet = GetStyleSheetForURL(aURL);
|
|
|
|
// Make sure we remove the stylesheet from our internal list in all
|
|
// cases.
|
|
nsresult rv = RemoveStyleSheetFromList(aURL);
|
|
|
|
NS_ENSURE_TRUE(sheet, NS_OK); /// Don't fail if sheet not found
|
|
|
|
if (NS_WARN_IF(!IsInitialized())) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
nsCOMPtr<nsIPresShell> ps = GetPresShell();
|
|
NS_ENSURE_TRUE(ps, NS_ERROR_NOT_INITIALIZED);
|
|
|
|
ps->RemoveOverrideStyleSheet(sheet);
|
|
ps->RestyleForCSSRuleChanges();
|
|
|
|
// Remove it from our internal list
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::EnableStyleSheet(const nsAString& aURL,
|
|
bool aEnable)
|
|
{
|
|
RefPtr<StyleSheet> sheet = GetStyleSheetForURL(aURL);
|
|
NS_ENSURE_TRUE(sheet, NS_OK); // Don't fail if sheet not found
|
|
|
|
// Ensure the style sheet is owned by our document.
|
|
nsCOMPtr<nsIDocument> document = GetDocument();
|
|
sheet->SetAssociatedDocument(document, StyleSheet::NotOwnedByDocument);
|
|
|
|
sheet->SetDisabled(!aEnable);
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::EnableExistingStyleSheet(const nsAString& aURL)
|
|
{
|
|
RefPtr<StyleSheet> sheet = GetStyleSheetForURL(aURL);
|
|
|
|
// Enable sheet if already loaded.
|
|
if (!sheet) {
|
|
return false;
|
|
}
|
|
|
|
// Ensure the style sheet is owned by our document.
|
|
nsCOMPtr<nsIDocument> document = GetDocument();
|
|
sheet->SetAssociatedDocument(document, StyleSheet::NotOwnedByDocument);
|
|
|
|
// FIXME: This used to do sheet->SetDisabled(false), figure out if we can
|
|
// just remove all this code in bug 1449522, since it seems unused.
|
|
return true;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::AddNewStyleSheetToList(const nsAString& aURL,
|
|
StyleSheet* aStyleSheet)
|
|
{
|
|
uint32_t countSS = mStyleSheets.Length();
|
|
uint32_t countU = mStyleSheetURLs.Length();
|
|
|
|
if (countSS != countU) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
if (!mStyleSheetURLs.AppendElement(aURL)) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
return mStyleSheets.AppendElement(aStyleSheet) ? NS_OK : NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::RemoveStyleSheetFromList(const nsAString& aURL)
|
|
{
|
|
// is it already in the list?
|
|
size_t foundIndex;
|
|
foundIndex = mStyleSheetURLs.IndexOf(aURL);
|
|
if (foundIndex == mStyleSheetURLs.NoIndex) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Attempt both removals; if one fails there's not much we can do.
|
|
mStyleSheets.RemoveElementAt(foundIndex);
|
|
mStyleSheetURLs.RemoveElementAt(foundIndex);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
StyleSheet*
|
|
HTMLEditor::GetStyleSheetForURL(const nsAString& aURL)
|
|
{
|
|
// is it already in the list?
|
|
size_t foundIndex;
|
|
foundIndex = mStyleSheetURLs.IndexOf(aURL);
|
|
if (foundIndex == mStyleSheetURLs.NoIndex) {
|
|
return nullptr;
|
|
}
|
|
|
|
MOZ_ASSERT(mStyleSheets[foundIndex]);
|
|
return mStyleSheets[foundIndex];
|
|
}
|
|
|
|
void
|
|
HTMLEditor::GetURLForStyleSheet(StyleSheet* aStyleSheet,
|
|
nsAString& aURL)
|
|
{
|
|
// is it already in the list?
|
|
int32_t foundIndex = mStyleSheets.IndexOf(aStyleSheet);
|
|
|
|
// Don't fail if we don't find it in our list
|
|
if (foundIndex == -1) {
|
|
return;
|
|
}
|
|
|
|
// Found it in the list!
|
|
aURL = mStyleSheetURLs[foundIndex];
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::GetEmbeddedObjects(nsIArray** aNodeList)
|
|
{
|
|
NS_ENSURE_TRUE(aNodeList, NS_ERROR_NULL_POINTER);
|
|
|
|
nsresult rv;
|
|
nsCOMPtr<nsIMutableArray> nodes = do_CreateInstance(NS_ARRAY_CONTRACTID, &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIContentIterator> iter =
|
|
do_CreateInstance("@mozilla.org/content/post-content-iterator;1", &rv);
|
|
NS_ENSURE_TRUE(iter, NS_ERROR_NULL_POINTER);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsCOMPtr<nsIDocument> doc = GetDocument();
|
|
NS_ENSURE_TRUE(doc, NS_ERROR_UNEXPECTED);
|
|
|
|
iter->Init(doc->GetRootElement());
|
|
|
|
// Loop through the content iterator for each content node.
|
|
while (!iter->IsDone()) {
|
|
nsINode* node = iter->GetCurrentNode();
|
|
if (node->IsElement()) {
|
|
dom::Element* element = node->AsElement();
|
|
|
|
// See if it's an image or an embed and also include all links.
|
|
// Let mail decide which link to send or not
|
|
if (element->IsAnyOfHTMLElements(nsGkAtoms::img, nsGkAtoms::embed,
|
|
nsGkAtoms::a) ||
|
|
(element->IsHTMLElement(nsGkAtoms::body) &&
|
|
element->HasAttr(kNameSpaceID_None, nsGkAtoms::background))) {
|
|
nsCOMPtr<nsIDOMNode> domNode = do_QueryInterface(node);
|
|
nodes->AppendElement(domNode);
|
|
}
|
|
}
|
|
iter->Next();
|
|
}
|
|
|
|
nodes.forget(aNodeList);
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::DeleteSelectionWithTransaction(EDirection aAction,
|
|
EStripWrappers aStripWrappers)
|
|
{
|
|
MOZ_ASSERT(aStripWrappers == eStrip || aStripWrappers == eNoStrip);
|
|
|
|
nsresult rv =
|
|
TextEditor::DeleteSelectionWithTransaction(aAction, aStripWrappers);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
// If we weren't asked to strip any wrappers, we're done.
|
|
if (aStripWrappers == eNoStrip) {
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<Selection> selection = GetSelection();
|
|
// Just checking that the selection itself is collapsed doesn't seem to work
|
|
// right in the multi-range case
|
|
NS_ENSURE_STATE(selection);
|
|
NS_ENSURE_STATE(selection->GetAnchorFocusRange());
|
|
NS_ENSURE_STATE(selection->GetAnchorFocusRange()->Collapsed());
|
|
|
|
NS_ENSURE_STATE(selection->GetAnchorNode()->IsContent());
|
|
nsCOMPtr<nsIContent> content = selection->GetAnchorNode()->AsContent();
|
|
|
|
// Don't strip wrappers if this is the only wrapper in the block. Then we'll
|
|
// add a <br> later, so it won't be an empty wrapper in the end.
|
|
nsCOMPtr<nsIContent> blockParent = content;
|
|
while (blockParent && !IsBlockNode(blockParent)) {
|
|
blockParent = blockParent->GetParent();
|
|
}
|
|
if (!blockParent) {
|
|
return NS_OK;
|
|
}
|
|
bool emptyBlockParent;
|
|
rv = IsEmptyNode(blockParent, &emptyBlockParent);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
if (emptyBlockParent) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (content && !IsBlockNode(content) && !content->Length() &&
|
|
content->IsEditable() && content != content->GetEditingHost()) {
|
|
while (content->GetParent() && !IsBlockNode(content->GetParent()) &&
|
|
content->GetParent()->Length() == 1 &&
|
|
content->GetParent()->IsEditable() &&
|
|
content->GetParent() != content->GetEditingHost()) {
|
|
content = content->GetParent();
|
|
}
|
|
rv = DeleteNodeWithTransaction(*content);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::DeleteNodeWithTransaction(nsINode& aNode)
|
|
{
|
|
if (NS_WARN_IF(!aNode.IsContent())) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
// Do nothing if the node is read-only.
|
|
// XXX This is not a override method of EditorBase's method. This might
|
|
// cause not called accidentally. We need to investigate this issue.
|
|
if (NS_WARN_IF(!IsModifiableNode(aNode.AsContent()) &&
|
|
!IsMozEditorBogusNode(aNode.AsContent()))) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
nsresult rv = EditorBase::DeleteNodeWithTransaction(aNode);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::DeleteNode(nsIDOMNode* aDOMNode)
|
|
{
|
|
nsCOMPtr<nsINode> node = do_QueryInterface(aDOMNode);
|
|
if (NS_WARN_IF(!node)) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
nsresult rv = DeleteNodeWithTransaction(*node);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::DeleteTextWithTransaction(CharacterData& aCharData,
|
|
uint32_t aOffset,
|
|
uint32_t aLength)
|
|
{
|
|
// Do nothing if the node is read-only
|
|
if (!IsModifiableNode(&aCharData)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return EditorBase::DeleteTextWithTransaction(aCharData, aOffset, aLength);
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::InsertTextWithTransaction(
|
|
nsIDocument& aDocument,
|
|
const nsAString& aStringToInsert,
|
|
const EditorRawDOMPoint& aPointToInsert,
|
|
EditorRawDOMPoint* aPointAfterInsertedString)
|
|
{
|
|
if (NS_WARN_IF(!aPointToInsert.IsSet())) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
// Do nothing if the node is read-only
|
|
if (!IsModifiableNode(aPointToInsert.GetContainer())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return EditorBase::InsertTextWithTransaction(aDocument, aStringToInsert,
|
|
aPointToInsert,
|
|
aPointAfterInsertedString);
|
|
}
|
|
|
|
void
|
|
HTMLEditor::ContentAppended(nsIContent* aFirstNewContent)
|
|
{
|
|
DoContentInserted(aFirstNewContent, eAppended);
|
|
}
|
|
|
|
void
|
|
HTMLEditor::ContentInserted(nsIContent* aChild)
|
|
{
|
|
DoContentInserted(aChild, eInserted);
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::IsInObservedSubtree(nsIContent* aChild)
|
|
{
|
|
if (!aChild) {
|
|
return false;
|
|
}
|
|
|
|
Element* root = GetRoot();
|
|
// To be super safe here, check both ChromeOnlyAccess and GetBindingParent.
|
|
// That catches (also unbound) native anonymous content, XBL and ShadowDOM.
|
|
if (root &&
|
|
(root->ChromeOnlyAccess() != aChild->ChromeOnlyAccess() ||
|
|
root->GetBindingParent() != aChild->GetBindingParent())) {
|
|
return false;
|
|
}
|
|
|
|
return !aChild->ChromeOnlyAccess() && !aChild->GetBindingParent();
|
|
}
|
|
|
|
void
|
|
HTMLEditor::DoContentInserted(nsIContent* aChild,
|
|
InsertedOrAppended aInsertedOrAppended)
|
|
{
|
|
MOZ_ASSERT(aChild);
|
|
nsINode* container = aChild->GetParentNode();
|
|
MOZ_ASSERT(container);
|
|
|
|
if (!IsInObservedSubtree(aChild)) {
|
|
return;
|
|
}
|
|
|
|
// XXX Why do we need this? This method is a helper of mutation observer.
|
|
// So, the callers of mutation observer should guarantee that this won't
|
|
// be deleted at least during the call.
|
|
RefPtr<HTMLEditor> kungFuDeathGrip(this);
|
|
|
|
if (ShouldReplaceRootElement()) {
|
|
UpdateRootElement();
|
|
nsContentUtils::AddScriptRunner(
|
|
NewRunnableMethod("HTMLEditor::NotifyRootChanged",
|
|
this,
|
|
&HTMLEditor::NotifyRootChanged));
|
|
}
|
|
// We don't need to handle our own modifications
|
|
else if (!mAction && container->IsEditable()) {
|
|
if (IsMozEditorBogusNode(aChild)) {
|
|
// Ignore insertion of the bogus node
|
|
return;
|
|
}
|
|
// Protect the edit rules object from dying
|
|
RefPtr<TextEditRules> rules(mRules);
|
|
rules->DocumentModified();
|
|
|
|
// Update spellcheck for only the newly-inserted node (bug 743819)
|
|
if (mInlineSpellChecker) {
|
|
RefPtr<nsRange> range = new nsRange(aChild);
|
|
nsIContent* endContent = aChild;
|
|
if (aInsertedOrAppended == eAppended) {
|
|
// Maybe more than 1 child was appended.
|
|
endContent = container->GetLastChild();
|
|
}
|
|
range->SelectNodesInContainer(container, aChild, endContent);
|
|
mInlineSpellChecker->SpellCheckRange(range);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
HTMLEditor::ContentRemoved(nsIContent* aChild,
|
|
nsIContent* aPreviousSibling)
|
|
{
|
|
if (!IsInObservedSubtree(aChild)) {
|
|
return;
|
|
}
|
|
|
|
// XXX Why do we need to do this? This method is a mutation observer's
|
|
// method. Therefore, the caller should guarantee that this won't be
|
|
// deleted during the call.
|
|
RefPtr<HTMLEditor> kungFuDeathGrip(this);
|
|
|
|
if (SameCOMIdentity(aChild, mRootElement)) {
|
|
mRootElement = nullptr;
|
|
nsContentUtils::AddScriptRunner(
|
|
NewRunnableMethod("HTMLEditor::NotifyRootChanged",
|
|
this,
|
|
&HTMLEditor::NotifyRootChanged));
|
|
// We don't need to handle our own modifications
|
|
} else if (!mAction && aChild->GetParentNode()->IsEditable()) {
|
|
if (aChild && IsMozEditorBogusNode(aChild)) {
|
|
// Ignore removal of the bogus node
|
|
return;
|
|
}
|
|
// Protect the edit rules object from dying
|
|
RefPtr<TextEditRules> rules(mRules);
|
|
rules->DocumentModified();
|
|
}
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::IsModifiableNode(nsINode* aNode)
|
|
{
|
|
return !aNode || aNode->IsEditable();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::DebugUnitTests(int32_t* outNumTests,
|
|
int32_t* outNumTestsFailed)
|
|
{
|
|
#ifdef DEBUG
|
|
NS_ENSURE_TRUE(outNumTests && outNumTestsFailed, NS_ERROR_NULL_POINTER);
|
|
|
|
TextEditorTest *tester = new TextEditorTest();
|
|
NS_ENSURE_TRUE(tester, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
tester->Run(this, outNumTests, outNumTestsFailed);
|
|
delete tester;
|
|
return NS_OK;
|
|
#else
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
#endif
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::StyleSheetLoaded(StyleSheet* aSheet,
|
|
bool aWasDeferred,
|
|
nsresult aStatus)
|
|
{
|
|
AutoPlaceholderBatch batchIt(this);
|
|
|
|
if (!mLastStyleSheetURL.IsEmpty()) {
|
|
RemoveStyleSheetWithTransaction(mLastStyleSheetURL);
|
|
}
|
|
|
|
RefPtr<AddStyleSheetTransaction> transaction =
|
|
AddStyleSheetTransaction::Create(*this, *aSheet);
|
|
nsresult rv = DoTransaction(transaction);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// Get the URI, then url spec from the sheet
|
|
nsAutoCString spec;
|
|
rv = aSheet->GetSheetURI()->GetSpec(spec);
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
// Save it so we can remove before applying the next one
|
|
CopyASCIItoUTF16(spec, mLastStyleSheetURL);
|
|
|
|
// Also save in our arrays of urls and sheets
|
|
AddNewStyleSheetToList(mLastStyleSheetURL, aSheet);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
/**
|
|
* All editor operations which alter the doc should be prefaced
|
|
* with a call to StartOperation, naming the action and direction.
|
|
*/
|
|
nsresult
|
|
HTMLEditor::StartOperation(EditAction opID,
|
|
nsIEditor::EDirection aDirection)
|
|
{
|
|
// Protect the edit rules object from dying
|
|
RefPtr<TextEditRules> rules(mRules);
|
|
|
|
EditorBase::StartOperation(opID, aDirection); // will set mAction, mDirection
|
|
if (rules) {
|
|
return rules->BeforeEdit(mAction, mDirection);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
/**
|
|
* All editor operations which alter the doc should be followed
|
|
* with a call to EndOperation.
|
|
*/
|
|
nsresult
|
|
HTMLEditor::EndOperation()
|
|
{
|
|
// Protect the edit rules object from dying
|
|
RefPtr<TextEditRules> rules(mRules);
|
|
|
|
// post processing
|
|
nsresult rv = rules ? rules->AfterEdit(mAction, mDirection) : NS_OK;
|
|
EditorBase::EndOperation(); // will clear mAction, mDirection
|
|
return rv;
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::TagCanContainTag(nsAtom& aParentTag,
|
|
nsAtom& aChildTag) const
|
|
{
|
|
int32_t childTagEnum;
|
|
// XXX Should this handle #cdata-section too?
|
|
if (&aChildTag == nsGkAtoms::textTagName) {
|
|
childTagEnum = eHTMLTag_text;
|
|
} else {
|
|
childTagEnum = nsHTMLTags::AtomTagToId(&aChildTag);
|
|
}
|
|
|
|
int32_t parentTagEnum = nsHTMLTags::AtomTagToId(&aParentTag);
|
|
return HTMLEditUtils::CanContain(parentTagEnum, childTagEnum);
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::IsContainer(nsINode* aNode)
|
|
{
|
|
MOZ_ASSERT(aNode);
|
|
|
|
int32_t tagEnum;
|
|
// XXX Should this handle #cdata-section too?
|
|
if (aNode->IsText()) {
|
|
tagEnum = eHTMLTag_text;
|
|
} else {
|
|
tagEnum = nsHTMLTags::StringTagToId(aNode->NodeName());
|
|
}
|
|
|
|
return HTMLEditUtils::IsContainer(tagEnum);
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::SelectEntireDocument(Selection* aSelection)
|
|
{
|
|
if (!aSelection || !mRules) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
// Protect the edit rules object from dying
|
|
RefPtr<TextEditRules> rules(mRules);
|
|
|
|
// is doc empty?
|
|
if (rules->DocumentIsEmpty()) {
|
|
// get editor root node
|
|
Element* rootElement = GetRoot();
|
|
|
|
// if its empty dont select entire doc - that would select the bogus node
|
|
return aSelection->Collapse(rootElement, 0);
|
|
}
|
|
|
|
return EditorBase::SelectEntireDocument(aSelection);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::SelectAll()
|
|
{
|
|
CommitComposition();
|
|
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_STATE(selection);
|
|
|
|
nsINode* anchorNode = selection->GetAnchorNode();
|
|
if (NS_WARN_IF(!anchorNode) || NS_WARN_IF(!anchorNode->IsContent())) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsIContent* anchorContent = anchorNode->AsContent();
|
|
nsIContent* rootContent;
|
|
if (anchorContent->HasIndependentSelection()) {
|
|
selection->SetAncestorLimiter(nullptr);
|
|
rootContent = mRootElement;
|
|
} else {
|
|
nsCOMPtr<nsIPresShell> ps = GetPresShell();
|
|
rootContent = anchorContent->GetSelectionRootContent(ps);
|
|
}
|
|
|
|
NS_ENSURE_TRUE(rootContent, NS_ERROR_UNEXPECTED);
|
|
|
|
Maybe<mozilla::dom::Selection::AutoUserInitiated> userSelection;
|
|
if (!rootContent->IsEditable()) {
|
|
userSelection.emplace(selection);
|
|
}
|
|
ErrorResult errorResult;
|
|
selection->SelectAllChildren(*rootContent, errorResult);
|
|
return errorResult.StealNSResult();
|
|
}
|
|
|
|
// this will NOT find aAttribute unless aAttribute has a non-null value
|
|
// so singleton attributes like <Table border> will not be matched!
|
|
bool
|
|
HTMLEditor::IsTextPropertySetByContent(nsINode* aNode,
|
|
nsAtom* aProperty,
|
|
nsAtom* aAttribute,
|
|
const nsAString* aValue,
|
|
nsAString* outValue)
|
|
{
|
|
MOZ_ASSERT(aNode && aProperty);
|
|
|
|
while (aNode) {
|
|
if (aNode->IsElement()) {
|
|
Element* element = aNode->AsElement();
|
|
if (aProperty == element->NodeInfo()->NameAtom()) {
|
|
if (!aAttribute) {
|
|
return true;
|
|
}
|
|
nsAutoString value;
|
|
element->GetAttr(kNameSpaceID_None, aAttribute, value);
|
|
if (outValue) {
|
|
*outValue = value;
|
|
}
|
|
if (!value.IsEmpty()) {
|
|
if (!aValue) {
|
|
return true;
|
|
}
|
|
if (aValue->Equals(value, nsCaseInsensitiveStringComparator())) {
|
|
return true;
|
|
}
|
|
// We found the prop with the attribute, but the value doesn't
|
|
// match.
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
aNode = aNode->GetParentNode();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::SetCaretInTableCell(Element* aElement)
|
|
{
|
|
if (!aElement || !aElement->IsHTMLElement() ||
|
|
!HTMLEditUtils::IsTableElement(aElement) ||
|
|
!IsDescendantOfEditorRoot(aElement)) {
|
|
return false;
|
|
}
|
|
|
|
nsIContent* node = aElement;
|
|
while (node->HasChildren()) {
|
|
node = node->GetFirstChild();
|
|
}
|
|
|
|
// Set selection at beginning of the found node
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, false);
|
|
|
|
return NS_SUCCEEDED(selection->Collapse(node, 0));
|
|
}
|
|
|
|
/**
|
|
* GetEnclosingTable() finds ancestor who is a table, if any.
|
|
*/
|
|
Element*
|
|
HTMLEditor::GetEnclosingTable(nsINode* aNode)
|
|
{
|
|
MOZ_ASSERT(aNode);
|
|
|
|
for (nsCOMPtr<Element> block = GetBlockNodeParent(aNode);
|
|
block;
|
|
block = GetBlockNodeParent(block)) {
|
|
if (HTMLEditUtils::IsTable(block)) {
|
|
return block;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
nsIDOMNode*
|
|
HTMLEditor::GetEnclosingTable(nsIDOMNode* aNode)
|
|
{
|
|
MOZ_ASSERT(aNode, "null node passed to HTMLEditor::GetEnclosingTable");
|
|
nsCOMPtr<nsINode> node = do_QueryInterface(aNode);
|
|
NS_ENSURE_TRUE(node, nullptr);
|
|
nsCOMPtr<Element> table = GetEnclosingTable(node);
|
|
nsCOMPtr<nsIDOMNode> ret = do_QueryInterface(table);
|
|
return ret;
|
|
}
|
|
|
|
|
|
/**
|
|
* This method scans the selection for adjacent text nodes
|
|
* and collapses them into a single text node.
|
|
* "adjacent" means literally adjacent siblings of the same parent.
|
|
* Uses EditorBase::JoinNodesWithTransaction() so action is undoable.
|
|
* Should be called within the context of a batch transaction.
|
|
*/
|
|
nsresult
|
|
HTMLEditor::CollapseAdjacentTextNodes(nsRange* aInRange)
|
|
{
|
|
NS_ENSURE_TRUE(aInRange, NS_ERROR_NULL_POINTER);
|
|
AutoTransactionsConserveSelection dontChangeMySelection(this);
|
|
nsTArray<nsCOMPtr<nsINode>> textNodes;
|
|
// we can't actually do anything during iteration, so store the text nodes in an array
|
|
// don't bother ref counting them because we know we can hold them for the
|
|
// lifetime of this method
|
|
|
|
|
|
// build a list of editable text nodes
|
|
nsresult rv = NS_ERROR_UNEXPECTED;
|
|
nsCOMPtr<nsIContentIterator> iter =
|
|
do_CreateInstance("@mozilla.org/content/subtree-content-iterator;1", &rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
iter->Init(aInRange);
|
|
|
|
while (!iter->IsDone()) {
|
|
nsINode* node = iter->GetCurrentNode();
|
|
if (node->NodeType() == nsINode::TEXT_NODE &&
|
|
IsEditable(node->AsContent())) {
|
|
textNodes.AppendElement(node);
|
|
}
|
|
|
|
iter->Next();
|
|
}
|
|
|
|
// now that I have a list of text nodes, collapse adjacent text nodes
|
|
// NOTE: assumption that JoinNodes keeps the righthand node
|
|
while (textNodes.Length() > 1) {
|
|
// we assume a textNodes entry can't be nullptr
|
|
nsINode* leftTextNode = textNodes[0];
|
|
nsINode* rightTextNode = textNodes[1];
|
|
NS_ASSERTION(leftTextNode && rightTextNode,"left or rightTextNode null in CollapseAdjacentTextNodes");
|
|
|
|
// get the prev sibling of the right node, and see if its leftTextNode
|
|
nsCOMPtr<nsINode> prevSibOfRightNode = rightTextNode->GetPreviousSibling();
|
|
if (prevSibOfRightNode && prevSibOfRightNode == leftTextNode) {
|
|
rv = JoinNodesWithTransaction(*leftTextNode, *rightTextNode);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
textNodes.RemoveElementAt(0); // remove the leftmost text node from the list
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::SetSelectionAtDocumentStart(Selection* aSelection)
|
|
{
|
|
dom::Element* rootElement = GetRoot();
|
|
NS_ENSURE_TRUE(rootElement, NS_ERROR_NULL_POINTER);
|
|
|
|
return aSelection->Collapse(rootElement, 0);
|
|
}
|
|
|
|
/**
|
|
* Remove aNode, reparenting any children into the parent of aNode. In
|
|
* addition, insert any br's needed to preserve identity of removed block.
|
|
*/
|
|
nsresult
|
|
HTMLEditor::RemoveBlockContainerWithTransaction(Element& aElement)
|
|
{
|
|
RefPtr<Selection> selection = GetSelection();
|
|
if (NS_WARN_IF(!selection)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Two possibilities: the container could be empty of editable content. If
|
|
// that is the case, we need to compare what is before and after aNode to
|
|
// determine if we need a br.
|
|
//
|
|
// Or it could be not empty, in which case we have to compare previous
|
|
// sibling and first child to determine if we need a leading br, and compare
|
|
// following sibling and last child to determine if we need a trailing br.
|
|
|
|
nsCOMPtr<nsIContent> child = GetFirstEditableChild(aElement);
|
|
|
|
if (child) {
|
|
// The case of aNode not being empty. We need a br at start unless:
|
|
// 1) previous sibling of aNode is a block, OR
|
|
// 2) previous sibling of aNode is a br, OR
|
|
// 3) first child of aNode is a block OR
|
|
// 4) either is null
|
|
|
|
nsCOMPtr<nsIContent> sibling = GetPriorHTMLSibling(&aElement);
|
|
if (sibling && !IsBlockNode(sibling) &&
|
|
!sibling->IsHTMLElement(nsGkAtoms::br) && !IsBlockNode(child)) {
|
|
// Insert br node
|
|
RefPtr<Element> brElement =
|
|
InsertBrElementWithTransaction(*selection,
|
|
EditorRawDOMPoint(&aElement, 0));
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
// We need a br at end unless:
|
|
// 1) following sibling of aNode is a block, OR
|
|
// 2) last child of aNode is a block, OR
|
|
// 3) last child of aNode is a br OR
|
|
// 4) either is null
|
|
|
|
sibling = GetNextHTMLSibling(&aElement);
|
|
if (sibling && !IsBlockNode(sibling)) {
|
|
child = GetLastEditableChild(aElement);
|
|
MOZ_ASSERT(child, "aNode has first editable child but not last?");
|
|
if (!IsBlockNode(child) && !child->IsHTMLElement(nsGkAtoms::br)) {
|
|
// Insert br node
|
|
EditorRawDOMPoint endOfNode;
|
|
endOfNode.SetToEndOf(&aElement);
|
|
RefPtr<Element> brElement =
|
|
InsertBrElementWithTransaction(*selection, endOfNode);
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
// The case of aNode being empty. We need a br at start unless:
|
|
// 1) previous sibling of aNode is a block, OR
|
|
// 2) previous sibling of aNode is a br, OR
|
|
// 3) following sibling of aNode is a block, OR
|
|
// 4) following sibling of aNode is a br OR
|
|
// 5) either is null
|
|
nsCOMPtr<nsIContent> sibling = GetPriorHTMLSibling(&aElement);
|
|
if (sibling && !IsBlockNode(sibling) &&
|
|
!sibling->IsHTMLElement(nsGkAtoms::br)) {
|
|
sibling = GetNextHTMLSibling(&aElement);
|
|
if (sibling && !IsBlockNode(sibling) &&
|
|
!sibling->IsHTMLElement(nsGkAtoms::br)) {
|
|
// Insert br node
|
|
RefPtr<Element> brElement =
|
|
InsertBrElementWithTransaction(*selection,
|
|
EditorRawDOMPoint(&aElement, 0));
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Now remove container
|
|
nsresult rv = RemoveContainerWithTransaction(aElement);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
/**
|
|
* GetPriorHTMLSibling() returns the previous editable sibling, if there is
|
|
* one within the parent.
|
|
*/
|
|
nsIContent*
|
|
HTMLEditor::GetPriorHTMLSibling(nsINode* aNode)
|
|
{
|
|
MOZ_ASSERT(aNode);
|
|
|
|
nsIContent* node = aNode->GetPreviousSibling();
|
|
while (node && !IsEditable(node)) {
|
|
node = node->GetPreviousSibling();
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
/**
|
|
* GetNextHTMLSibling() returns the next editable sibling, if there is
|
|
* one within the parent.
|
|
*/
|
|
nsIContent*
|
|
HTMLEditor::GetNextHTMLSibling(nsINode* aNode)
|
|
{
|
|
MOZ_ASSERT(aNode);
|
|
|
|
nsIContent* node = aNode->GetNextSibling();
|
|
while (node && !IsEditable(node)) {
|
|
node = node->GetNextSibling();
|
|
}
|
|
|
|
return node;
|
|
}
|
|
|
|
nsIContent*
|
|
HTMLEditor::GetPreviousHTMLElementOrTextInternal(nsINode& aNode,
|
|
bool aNoBlockCrossing)
|
|
{
|
|
if (!GetActiveEditingHost()) {
|
|
return nullptr;
|
|
}
|
|
return aNoBlockCrossing ? GetPreviousElementOrTextInBlock(aNode) :
|
|
GetPreviousElementOrText(aNode);
|
|
}
|
|
|
|
template<typename PT, typename CT>
|
|
nsIContent*
|
|
HTMLEditor::GetPreviousHTMLElementOrTextInternal(
|
|
const EditorDOMPointBase<PT, CT>& aPoint,
|
|
bool aNoBlockCrossing)
|
|
{
|
|
if (!GetActiveEditingHost()) {
|
|
return nullptr;
|
|
}
|
|
return aNoBlockCrossing ? GetPreviousElementOrTextInBlock(aPoint) :
|
|
GetPreviousElementOrText(aPoint);
|
|
}
|
|
|
|
nsIContent*
|
|
HTMLEditor::GetPreviousEditableHTMLNodeInternal(nsINode& aNode,
|
|
bool aNoBlockCrossing)
|
|
{
|
|
if (!GetActiveEditingHost()) {
|
|
return nullptr;
|
|
}
|
|
return aNoBlockCrossing ? GetPreviousEditableNodeInBlock(aNode) :
|
|
GetPreviousEditableNode(aNode);
|
|
}
|
|
|
|
template<typename PT, typename CT>
|
|
nsIContent*
|
|
HTMLEditor::GetPreviousEditableHTMLNodeInternal(
|
|
const EditorDOMPointBase<PT, CT>& aPoint,
|
|
bool aNoBlockCrossing)
|
|
{
|
|
if (!GetActiveEditingHost()) {
|
|
return nullptr;
|
|
}
|
|
return aNoBlockCrossing ? GetPreviousEditableNodeInBlock(aPoint) :
|
|
GetPreviousEditableNode(aPoint);
|
|
}
|
|
|
|
nsIContent*
|
|
HTMLEditor::GetNextHTMLElementOrTextInternal(nsINode& aNode,
|
|
bool aNoBlockCrossing)
|
|
{
|
|
if (!GetActiveEditingHost()) {
|
|
return nullptr;
|
|
}
|
|
return aNoBlockCrossing ? GetNextElementOrTextInBlock(aNode) :
|
|
GetNextElementOrText(aNode);
|
|
}
|
|
|
|
template<typename PT, typename CT>
|
|
nsIContent*
|
|
HTMLEditor::GetNextHTMLElementOrTextInternal(
|
|
const EditorDOMPointBase<PT, CT>& aPoint,
|
|
bool aNoBlockCrossing)
|
|
{
|
|
if (!GetActiveEditingHost()) {
|
|
return nullptr;
|
|
}
|
|
return aNoBlockCrossing ? GetNextElementOrTextInBlock(aPoint) :
|
|
GetNextElementOrText(aPoint);
|
|
}
|
|
|
|
nsIContent*
|
|
HTMLEditor::GetNextEditableHTMLNodeInternal(nsINode& aNode,
|
|
bool aNoBlockCrossing)
|
|
{
|
|
if (!GetActiveEditingHost()) {
|
|
return nullptr;
|
|
}
|
|
return aNoBlockCrossing ? GetNextEditableNodeInBlock(aNode) :
|
|
GetNextEditableNode(aNode);
|
|
}
|
|
|
|
template<typename PT, typename CT>
|
|
nsIContent*
|
|
HTMLEditor::GetNextEditableHTMLNodeInternal(
|
|
const EditorDOMPointBase<PT, CT>& aPoint,
|
|
bool aNoBlockCrossing)
|
|
{
|
|
if (!GetActiveEditingHost()) {
|
|
return nullptr;
|
|
}
|
|
return aNoBlockCrossing ? GetNextEditableNodeInBlock(aPoint) :
|
|
GetNextEditableNode(aPoint);
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::IsFirstEditableChild(nsINode* aNode)
|
|
{
|
|
MOZ_ASSERT(aNode);
|
|
// find first editable child and compare it to aNode
|
|
nsCOMPtr<nsINode> parent = aNode->GetParentNode();
|
|
if (NS_WARN_IF(!parent)) {
|
|
return false;
|
|
}
|
|
return (GetFirstEditableChild(*parent) == aNode);
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::IsLastEditableChild(nsINode* aNode)
|
|
{
|
|
MOZ_ASSERT(aNode);
|
|
// find last editable child and compare it to aNode
|
|
nsCOMPtr<nsINode> parent = aNode->GetParentNode();
|
|
if (NS_WARN_IF(!parent)) {
|
|
return false;
|
|
}
|
|
return (GetLastEditableChild(*parent) == aNode);
|
|
}
|
|
|
|
nsIContent*
|
|
HTMLEditor::GetFirstEditableChild(nsINode& aNode)
|
|
{
|
|
nsCOMPtr<nsIContent> child = aNode.GetFirstChild();
|
|
|
|
while (child && !IsEditable(child)) {
|
|
child = child->GetNextSibling();
|
|
}
|
|
|
|
return child;
|
|
}
|
|
|
|
nsIContent*
|
|
HTMLEditor::GetLastEditableChild(nsINode& aNode)
|
|
{
|
|
nsCOMPtr<nsIContent> child = aNode.GetLastChild();
|
|
|
|
while (child && !IsEditable(child)) {
|
|
child = child->GetPreviousSibling();
|
|
}
|
|
|
|
return child;
|
|
}
|
|
|
|
nsIContent*
|
|
HTMLEditor::GetFirstEditableLeaf(nsINode& aNode)
|
|
{
|
|
nsCOMPtr<nsIContent> child = GetLeftmostChild(&aNode);
|
|
while (child && (!IsEditable(child) || child->HasChildren())) {
|
|
child = GetNextEditableHTMLNode(*child);
|
|
|
|
// Only accept nodes that are descendants of aNode
|
|
if (!aNode.Contains(child)) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
return child;
|
|
}
|
|
|
|
nsIContent*
|
|
HTMLEditor::GetLastEditableLeaf(nsINode& aNode)
|
|
{
|
|
nsCOMPtr<nsIContent> child = GetRightmostChild(&aNode, false);
|
|
while (child && (!IsEditable(child) || child->HasChildren())) {
|
|
child = GetPreviousEditableHTMLNode(*child);
|
|
|
|
// Only accept nodes that are descendants of aNode
|
|
if (!aNode.Contains(child)) {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
return child;
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::IsInVisibleTextFrames(Text& aText)
|
|
{
|
|
nsISelectionController* selectionController = GetSelectionController();
|
|
if (NS_WARN_IF(!selectionController)) {
|
|
return false;
|
|
}
|
|
|
|
if (!aText.TextDataLength()) {
|
|
return false;
|
|
}
|
|
|
|
// Ask the selection controller for information about whether any of the
|
|
// data in the node is really rendered. This is really something that
|
|
// frames know about, but we aren't supposed to talk to frames. So we put
|
|
// a call in the selection controller interface, since it's already in bed
|
|
// with frames anyway. (This is a fix for bug 22227, and a partial fix for
|
|
// bug 46209.)
|
|
bool isVisible = false;
|
|
nsresult rv =
|
|
selectionController->CheckVisibilityContent(&aText,
|
|
0, aText.TextDataLength(),
|
|
&isVisible);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return false;
|
|
}
|
|
return isVisible;
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::IsVisibleTextNode(Text& aText)
|
|
{
|
|
if (!aText.TextDataLength()) {
|
|
return false;
|
|
}
|
|
|
|
if (!aText.TextIsOnlyWhitespace()) {
|
|
return true;
|
|
}
|
|
|
|
WSRunObject wsRunObj(this, &aText, 0);
|
|
nsCOMPtr<nsINode> nextVisibleNode;
|
|
int32_t unused = 0;
|
|
WSType visibleNodeType;
|
|
wsRunObj.NextVisibleNode(EditorRawDOMPoint(&aText, 0),
|
|
address_of(nextVisibleNode),
|
|
&unused, &visibleNodeType);
|
|
return (visibleNodeType == WSType::normalWS ||
|
|
visibleNodeType == WSType::text) &&
|
|
&aText == nextVisibleNode;
|
|
}
|
|
|
|
/**
|
|
* IsEmptyNode() figures out if aNode is an empty node. A block can have
|
|
* children and still be considered empty, if the children are empty or
|
|
* non-editable.
|
|
*/
|
|
nsresult
|
|
HTMLEditor::IsEmptyNode(nsINode* aNode,
|
|
bool* outIsEmptyNode,
|
|
bool aSingleBRDoesntCount,
|
|
bool aListOrCellNotEmpty,
|
|
bool aSafeToAskFrames)
|
|
{
|
|
NS_ENSURE_TRUE(aNode && outIsEmptyNode, NS_ERROR_NULL_POINTER);
|
|
*outIsEmptyNode = true;
|
|
bool seenBR = false;
|
|
return IsEmptyNodeImpl(aNode, outIsEmptyNode, aSingleBRDoesntCount,
|
|
aListOrCellNotEmpty, aSafeToAskFrames, &seenBR);
|
|
}
|
|
|
|
/**
|
|
* IsEmptyNodeImpl() is workhorse for IsEmptyNode().
|
|
*/
|
|
nsresult
|
|
HTMLEditor::IsEmptyNodeImpl(nsINode* aNode,
|
|
bool* outIsEmptyNode,
|
|
bool aSingleBRDoesntCount,
|
|
bool aListOrCellNotEmpty,
|
|
bool aSafeToAskFrames,
|
|
bool* aSeenBR)
|
|
{
|
|
NS_ENSURE_TRUE(aNode && outIsEmptyNode && aSeenBR, NS_ERROR_NULL_POINTER);
|
|
|
|
if (Text* text = aNode->GetAsText()) {
|
|
*outIsEmptyNode = aSafeToAskFrames ? !IsInVisibleTextFrames(*text) :
|
|
!IsVisibleTextNode(*text);
|
|
return NS_OK;
|
|
}
|
|
|
|
// if it's not a text node (handled above) and it's not a container,
|
|
// then we don't call it empty (it's an <hr>, or <br>, etc.).
|
|
// Also, if it's an anchor then don't treat it as empty - even though
|
|
// anchors are containers, named anchors are "empty" but we don't
|
|
// want to treat them as such. Also, don't call ListItems or table
|
|
// cells empty if caller desires. Form Widgets not empty.
|
|
if (!IsContainer(aNode) ||
|
|
(HTMLEditUtils::IsNamedAnchor(aNode) ||
|
|
HTMLEditUtils::IsFormWidget(aNode) ||
|
|
(aListOrCellNotEmpty &&
|
|
(HTMLEditUtils::IsListItem(aNode) ||
|
|
HTMLEditUtils::IsTableCell(aNode))))) {
|
|
*outIsEmptyNode = false;
|
|
return NS_OK;
|
|
}
|
|
|
|
// need this for later
|
|
bool isListItemOrCell = HTMLEditUtils::IsListItem(aNode) ||
|
|
HTMLEditUtils::IsTableCell(aNode);
|
|
|
|
// loop over children of node. if no children, or all children are either
|
|
// empty text nodes or non-editable, then node qualifies as empty
|
|
for (nsCOMPtr<nsIContent> child = aNode->GetFirstChild();
|
|
child;
|
|
child = child->GetNextSibling()) {
|
|
// Is the child editable and non-empty? if so, return false
|
|
if (EditorBase::IsEditable(child)) {
|
|
if (Text* text = child->GetAsText()) {
|
|
// break out if we find we aren't empty
|
|
*outIsEmptyNode = aSafeToAskFrames ? !IsInVisibleTextFrames(*text) :
|
|
!IsVisibleTextNode(*text);
|
|
if (!*outIsEmptyNode){
|
|
return NS_OK;
|
|
}
|
|
} else {
|
|
// An editable, non-text node. We need to check its content.
|
|
// Is it the node we are iterating over?
|
|
if (child == aNode) {
|
|
break;
|
|
}
|
|
|
|
if (aSingleBRDoesntCount && !*aSeenBR && child->IsHTMLElement(nsGkAtoms::br)) {
|
|
// the first br in a block doesn't count if the caller so indicated
|
|
*aSeenBR = true;
|
|
} else {
|
|
// is it an empty node of some sort?
|
|
// note: list items or table cells are not considered empty
|
|
// if they contain other lists or tables
|
|
if (child->IsElement()) {
|
|
if (isListItemOrCell) {
|
|
if (HTMLEditUtils::IsList(child) ||
|
|
child->IsHTMLElement(nsGkAtoms::table)) {
|
|
// break out if we find we aren't empty
|
|
*outIsEmptyNode = false;
|
|
return NS_OK;
|
|
}
|
|
} else if (HTMLEditUtils::IsFormWidget(child)) {
|
|
// is it a form widget?
|
|
// break out if we find we aren't empty
|
|
*outIsEmptyNode = false;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
|
|
bool isEmptyNode = true;
|
|
nsresult rv = IsEmptyNodeImpl(child, &isEmptyNode,
|
|
aSingleBRDoesntCount,
|
|
aListOrCellNotEmpty, aSafeToAskFrames,
|
|
aSeenBR);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
if (!isEmptyNode) {
|
|
// otherwise it ain't empty
|
|
*outIsEmptyNode = false;
|
|
return NS_OK;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
// add to aElement the CSS inline styles corresponding to the HTML attribute
|
|
// aAttribute with its value aValue
|
|
nsresult
|
|
HTMLEditor::SetAttributeOrEquivalent(Element* aElement,
|
|
nsAtom* aAttribute,
|
|
const nsAString& aValue,
|
|
bool aSuppressTransaction)
|
|
{
|
|
MOZ_ASSERT(aElement);
|
|
MOZ_ASSERT(aAttribute);
|
|
|
|
nsAutoScriptBlocker scriptBlocker;
|
|
|
|
if (!IsCSSEnabled() || !mCSSEditUtils) {
|
|
// we are not in an HTML+CSS editor; let's set the attribute the HTML way
|
|
if (mCSSEditUtils) {
|
|
mCSSEditUtils->RemoveCSSEquivalentToHTMLStyle(aElement, nullptr,
|
|
aAttribute, nullptr,
|
|
aSuppressTransaction);
|
|
}
|
|
return aSuppressTransaction ?
|
|
aElement->SetAttr(kNameSpaceID_None, aAttribute, aValue, true) :
|
|
SetAttributeWithTransaction(*aElement, *aAttribute, aValue);
|
|
}
|
|
|
|
int32_t count =
|
|
mCSSEditUtils->SetCSSEquivalentToHTMLStyle(aElement, nullptr,
|
|
aAttribute, &aValue,
|
|
aSuppressTransaction);
|
|
if (count) {
|
|
// we found an equivalence ; let's remove the HTML attribute itself if it
|
|
// is set
|
|
nsAutoString existingValue;
|
|
if (!aElement->GetAttr(kNameSpaceID_None, aAttribute, existingValue)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
return aSuppressTransaction ?
|
|
aElement->UnsetAttr(kNameSpaceID_None, aAttribute, true) :
|
|
RemoveAttributeWithTransaction(*aElement, *aAttribute);
|
|
}
|
|
|
|
// count is an integer that represents the number of CSS declarations applied
|
|
// to the element. If it is zero, we found no equivalence in this
|
|
// implementation for the attribute
|
|
if (aAttribute == nsGkAtoms::style) {
|
|
// if it is the style attribute, just add the new value to the existing
|
|
// style attribute's value
|
|
nsAutoString existingValue;
|
|
aElement->GetAttr(kNameSpaceID_None, nsGkAtoms::style, existingValue);
|
|
existingValue.Append(' ');
|
|
existingValue.Append(aValue);
|
|
return aSuppressTransaction ?
|
|
aElement->SetAttr(kNameSpaceID_None, aAttribute, existingValue, true) :
|
|
SetAttributeWithTransaction(*aElement, *aAttribute, existingValue);
|
|
}
|
|
|
|
// we have no CSS equivalence for this attribute and it is not the style
|
|
// attribute; let's set it the good'n'old HTML way
|
|
return aSuppressTransaction ?
|
|
aElement->SetAttr(kNameSpaceID_None, aAttribute, aValue, true) :
|
|
SetAttributeWithTransaction(*aElement, *aAttribute, aValue);
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::RemoveAttributeOrEquivalent(Element* aElement,
|
|
nsAtom* aAttribute,
|
|
bool aSuppressTransaction)
|
|
{
|
|
MOZ_ASSERT(aElement);
|
|
MOZ_ASSERT(aAttribute);
|
|
|
|
if (IsCSSEnabled() && mCSSEditUtils) {
|
|
nsresult rv =
|
|
mCSSEditUtils->RemoveCSSEquivalentToHTMLStyle(
|
|
aElement, nullptr, aAttribute, nullptr, aSuppressTransaction);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
|
|
if (!aElement->HasAttr(kNameSpaceID_None, aAttribute)) {
|
|
return NS_OK;
|
|
}
|
|
|
|
return aSuppressTransaction ?
|
|
aElement->UnsetAttr(kNameSpaceID_None, aAttribute, /* aNotify = */ true) :
|
|
RemoveAttributeWithTransaction(*aElement, *aAttribute);
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::SetIsCSSEnabled(bool aIsCSSPrefChecked)
|
|
{
|
|
if (!mCSSEditUtils) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
|
|
mCSSEditUtils->SetCSSEnabled(aIsCSSPrefChecked);
|
|
|
|
// Disable the eEditorNoCSSMask flag if we're enabling StyleWithCSS.
|
|
uint32_t flags = mFlags;
|
|
if (aIsCSSPrefChecked) {
|
|
// Turn off NoCSS as we're enabling CSS
|
|
flags &= ~eEditorNoCSSMask;
|
|
} else {
|
|
// Turn on NoCSS, as we're disabling CSS.
|
|
flags |= eEditorNoCSSMask;
|
|
}
|
|
|
|
return SetFlags(flags);
|
|
}
|
|
|
|
// Set the block background color
|
|
nsresult
|
|
HTMLEditor::SetCSSBackgroundColorWithTransaction(const nsAString& aColor)
|
|
{
|
|
NS_ENSURE_TRUE(mRules, NS_ERROR_NOT_INITIALIZED);
|
|
CommitComposition();
|
|
|
|
// Protect the edit rules object from dying
|
|
RefPtr<TextEditRules> rules(mRules);
|
|
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_STATE(selection);
|
|
|
|
bool isCollapsed = selection->IsCollapsed();
|
|
|
|
AutoPlaceholderBatch batchIt(this);
|
|
AutoRules beginRulesSniffing(this, EditAction::insertElement,
|
|
nsIEditor::eNext);
|
|
AutoSelectionRestorer selectionRestorer(selection, this);
|
|
AutoTransactionsConserveSelection dontChangeMySelection(this);
|
|
|
|
bool cancel, handled;
|
|
RulesInfo ruleInfo(EditAction::setTextProperty);
|
|
nsresult rv = rules->WillDoAction(selection, &ruleInfo, &cancel, &handled);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
if (!cancel && !handled) {
|
|
// Loop through the ranges in the selection
|
|
for (uint32_t i = 0; i < selection->RangeCount(); i++) {
|
|
RefPtr<nsRange> range = selection->GetRangeAt(i);
|
|
NS_ENSURE_TRUE(range, NS_ERROR_FAILURE);
|
|
|
|
nsCOMPtr<Element> cachedBlockParent;
|
|
|
|
// Check for easy case: both range endpoints in same text node
|
|
nsCOMPtr<nsINode> startNode = range->GetStartContainer();
|
|
int32_t startOffset = range->StartOffset();
|
|
nsCOMPtr<nsINode> endNode = range->GetEndContainer();
|
|
int32_t endOffset = range->EndOffset();
|
|
if (startNode == endNode && IsTextNode(startNode)) {
|
|
// Let's find the block container of the text node
|
|
nsCOMPtr<Element> blockParent = GetBlockNodeParent(startNode);
|
|
// And apply the background color to that block container
|
|
if (blockParent && cachedBlockParent != blockParent) {
|
|
cachedBlockParent = blockParent;
|
|
mCSSEditUtils->SetCSSEquivalentToHTMLStyle(blockParent, nullptr,
|
|
nsGkAtoms::bgcolor,
|
|
&aColor, false);
|
|
}
|
|
} else if (startNode == endNode &&
|
|
startNode->IsHTMLElement(nsGkAtoms::body) && isCollapsed) {
|
|
// No block in the document, let's apply the background to the body
|
|
mCSSEditUtils->SetCSSEquivalentToHTMLStyle(startNode->AsElement(),
|
|
nullptr, nsGkAtoms::bgcolor,
|
|
&aColor,
|
|
false);
|
|
} else if (startNode == endNode && (endOffset - startOffset == 1 ||
|
|
(!startOffset && !endOffset))) {
|
|
// A unique node is selected, let's also apply the background color to
|
|
// the containing block, possibly the node itself
|
|
nsCOMPtr<nsIContent> selectedNode = range->GetChildAtStartOffset();
|
|
nsCOMPtr<Element> blockParent = GetBlock(*selectedNode);
|
|
if (blockParent && cachedBlockParent != blockParent) {
|
|
cachedBlockParent = blockParent;
|
|
mCSSEditUtils->SetCSSEquivalentToHTMLStyle(blockParent, nullptr,
|
|
nsGkAtoms::bgcolor,
|
|
&aColor, false);
|
|
}
|
|
} else {
|
|
// Not the easy case. Range not contained in single text node. There
|
|
// are up to three phases here. There are all the nodes reported by
|
|
// the subtree iterator to be processed. And there are potentially a
|
|
// starting textnode and an ending textnode which are only partially
|
|
// contained by the range.
|
|
|
|
// Let's handle the nodes reported by the iterator. These nodes are
|
|
// entirely contained in the selection range. We build up a list of
|
|
// them (since doing operations on the document during iteration would
|
|
// perturb the iterator).
|
|
|
|
OwningNonNull<nsIContentIterator> iter =
|
|
NS_NewContentSubtreeIterator();
|
|
|
|
nsTArray<OwningNonNull<nsINode>> arrayOfNodes;
|
|
nsCOMPtr<nsINode> node;
|
|
|
|
// Iterate range and build up array
|
|
rv = iter->Init(range);
|
|
// Init returns an error if no nodes in range. This can easily happen
|
|
// with the subtree iterator if the selection doesn't contain any
|
|
// *whole* nodes.
|
|
if (NS_SUCCEEDED(rv)) {
|
|
for (; !iter->IsDone(); iter->Next()) {
|
|
node = do_QueryInterface(iter->GetCurrentNode());
|
|
NS_ENSURE_TRUE(node, NS_ERROR_FAILURE);
|
|
|
|
if (IsEditable(node)) {
|
|
arrayOfNodes.AppendElement(*node);
|
|
}
|
|
}
|
|
}
|
|
// First check the start parent of the range to see if it needs to be
|
|
// separately handled (it does if it's a text node, due to how the
|
|
// subtree iterator works - it will not have reported it).
|
|
if (IsTextNode(startNode) && IsEditable(startNode)) {
|
|
nsCOMPtr<Element> blockParent = GetBlockNodeParent(startNode);
|
|
if (blockParent && cachedBlockParent != blockParent) {
|
|
cachedBlockParent = blockParent;
|
|
mCSSEditUtils->SetCSSEquivalentToHTMLStyle(blockParent, nullptr,
|
|
nsGkAtoms::bgcolor,
|
|
&aColor,
|
|
false);
|
|
}
|
|
}
|
|
|
|
// Then loop through the list, set the property on each node
|
|
for (auto& node : arrayOfNodes) {
|
|
nsCOMPtr<Element> blockParent = GetBlock(node);
|
|
if (blockParent && cachedBlockParent != blockParent) {
|
|
cachedBlockParent = blockParent;
|
|
mCSSEditUtils->SetCSSEquivalentToHTMLStyle(blockParent, nullptr,
|
|
nsGkAtoms::bgcolor,
|
|
&aColor,
|
|
false);
|
|
}
|
|
}
|
|
arrayOfNodes.Clear();
|
|
|
|
// Last, check the end parent of the range to see if it needs to be
|
|
// separately handled (it does if it's a text node, due to how the
|
|
// subtree iterator works - it will not have reported it).
|
|
if (IsTextNode(endNode) && IsEditable(endNode)) {
|
|
nsCOMPtr<Element> blockParent = GetBlockNodeParent(endNode);
|
|
if (blockParent && cachedBlockParent != blockParent) {
|
|
cachedBlockParent = blockParent;
|
|
mCSSEditUtils->SetCSSEquivalentToHTMLStyle(blockParent, nullptr,
|
|
nsGkAtoms::bgcolor,
|
|
&aColor,
|
|
false);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (!cancel) {
|
|
// Post-process
|
|
rv = rules->DidDoAction(selection, &ruleInfo, rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::SetBackgroundColor(const nsAString& aColor)
|
|
{
|
|
if (IsCSSEnabled()) {
|
|
// if we are in CSS mode, we have to apply the background color to the
|
|
// containing block (or the body if we have no block-level element in
|
|
// the document)
|
|
return SetCSSBackgroundColorWithTransaction(aColor);
|
|
}
|
|
|
|
// but in HTML mode, we can only set the document's background color
|
|
return SetHTMLBackgroundColorWithTransaction(aColor);
|
|
}
|
|
|
|
/**
|
|
* NodesSameType() does these nodes have the same tag?
|
|
*/
|
|
bool
|
|
HTMLEditor::AreNodesSameType(nsIContent* aNode1,
|
|
nsIContent* aNode2)
|
|
{
|
|
MOZ_ASSERT(aNode1);
|
|
MOZ_ASSERT(aNode2);
|
|
|
|
if (aNode1->NodeInfo()->NameAtom() != aNode2->NodeInfo()->NameAtom()) {
|
|
return false;
|
|
}
|
|
|
|
if (!IsCSSEnabled() || !aNode1->IsHTMLElement(nsGkAtoms::span)) {
|
|
return true;
|
|
}
|
|
|
|
if (!aNode1->IsElement() || !aNode2->IsElement()) {
|
|
return false;
|
|
}
|
|
|
|
// If CSS is enabled, we are stricter about span nodes.
|
|
return CSSEditUtils::ElementsSameStyle(aNode1->AsElement(),
|
|
aNode2->AsElement());
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::CopyLastEditableChildStylesWithTransaction(
|
|
Element& aPreviousBlock,
|
|
Element& aNewBlock,
|
|
RefPtr<Element>* aNewBrElement)
|
|
{
|
|
if (NS_WARN_IF(!aNewBrElement)) {
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
*aNewBrElement = nullptr;
|
|
|
|
RefPtr<Element> previousBlock(&aPreviousBlock);
|
|
RefPtr<Element> newBlock(&aNewBlock);
|
|
|
|
// First, clear out aNewBlock. Contract is that we want only the styles
|
|
// from aPreviousBlock.
|
|
for (nsCOMPtr<nsINode> child = newBlock->GetFirstChild();
|
|
child;
|
|
child = newBlock->GetFirstChild()) {
|
|
nsresult rv = DeleteNodeWithTransaction(*child);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
}
|
|
|
|
// XXX aNewBlock may be moved or removed. Even in such case, we should
|
|
// keep cloning the styles?
|
|
|
|
// Look for the deepest last editable leaf node in aPreviousBlock.
|
|
// Then, if found one is a <br> element, look for non-<br> element.
|
|
nsIContent* deepestEditableContent = nullptr;
|
|
for (nsCOMPtr<nsIContent> child = previousBlock.get();
|
|
child;
|
|
child = GetLastEditableChild(*child)) {
|
|
deepestEditableContent = child;
|
|
}
|
|
while (deepestEditableContent &&
|
|
TextEditUtils::IsBreak(deepestEditableContent)) {
|
|
deepestEditableContent =
|
|
GetPreviousEditableHTMLNode(*deepestEditableContent);
|
|
}
|
|
Element* deepestVisibleEditableElement = nullptr;
|
|
if (deepestEditableContent) {
|
|
deepestVisibleEditableElement =
|
|
deepestEditableContent->IsElement() ?
|
|
deepestEditableContent->AsElement() :
|
|
deepestEditableContent->GetParentElement();
|
|
}
|
|
|
|
// Clone inline elements to keep current style in the new block.
|
|
// XXX Looks like that this is really slow if lastEditableDescendant is
|
|
// far from aPreviousBlock. Probably, we should clone inline containers
|
|
// from ancestor to descendants without transactions, then, insert it
|
|
// after that with transaction.
|
|
RefPtr<Element> lastClonedElement, firstClonsedElement;
|
|
for (RefPtr<Element> elementInPreviousBlock = deepestVisibleEditableElement;
|
|
elementInPreviousBlock && elementInPreviousBlock != previousBlock;
|
|
elementInPreviousBlock = elementInPreviousBlock->GetParentElement()) {
|
|
if (!HTMLEditUtils::IsInlineStyle(elementInPreviousBlock) &&
|
|
!elementInPreviousBlock->IsHTMLElement(nsGkAtoms::span)) {
|
|
continue;
|
|
}
|
|
nsAtom* tagName = elementInPreviousBlock->NodeInfo()->NameAtom();
|
|
// At first time, just create the most descendant inline container element.
|
|
if (!firstClonsedElement) {
|
|
EditorRawDOMPoint atStartOfNewBlock(newBlock, 0);
|
|
firstClonsedElement = lastClonedElement =
|
|
CreateNodeWithTransaction(*tagName, atStartOfNewBlock);
|
|
if (NS_WARN_IF(!firstClonsedElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
// Clone all attributes.
|
|
// XXX Looks like that this clones id attribute too.
|
|
CloneAttributesWithTransaction(*lastClonedElement,
|
|
*elementInPreviousBlock);
|
|
continue;
|
|
}
|
|
// Otherwise, inserts new parent inline container to the previous inserted
|
|
// inline container.
|
|
lastClonedElement =
|
|
InsertContainerWithTransaction(*lastClonedElement, *tagName);
|
|
if (NS_WARN_IF(!lastClonedElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
CloneAttributesWithTransaction(*lastClonedElement, *elementInPreviousBlock);
|
|
}
|
|
|
|
if (!firstClonsedElement) {
|
|
// XXX Even if no inline elements are cloned, shouldn't we create new
|
|
// <br> element for aNewBlock?
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<Selection> selection = GetSelection();
|
|
if (NS_WARN_IF(!selection)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
RefPtr<Element> brElement =
|
|
InsertBrElementWithTransaction(*selection,
|
|
EditorRawDOMPoint(firstClonsedElement, 0));
|
|
if (NS_WARN_IF(!brElement)) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
*aNewBrElement = brElement.forget();
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::GetElementOrigin(Element& aElement,
|
|
int32_t& aX,
|
|
int32_t& aY)
|
|
{
|
|
aX = 0;
|
|
aY = 0;
|
|
|
|
if (NS_WARN_IF(!IsInitialized())) {
|
|
return NS_ERROR_NOT_INITIALIZED;
|
|
}
|
|
nsCOMPtr<nsIPresShell> ps = GetPresShell();
|
|
NS_ENSURE_TRUE(ps, NS_ERROR_NOT_INITIALIZED);
|
|
|
|
nsIFrame* frame = aElement.GetPrimaryFrame();
|
|
NS_ENSURE_TRUE(frame, NS_OK);
|
|
|
|
nsIFrame *container = ps->GetAbsoluteContainingBlock(frame);
|
|
NS_ENSURE_TRUE(container, NS_OK);
|
|
nsPoint off = frame->GetOffsetTo(container);
|
|
aX = nsPresContext::AppUnitsToIntCSSPixels(off.x);
|
|
aY = nsPresContext::AppUnitsToIntCSSPixels(off.y);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::EndUpdateViewBatch()
|
|
{
|
|
nsresult rv = EditorBase::EndUpdateViewBatch();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (mUpdateCount) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// We may need to show resizing handles or update existing ones after
|
|
// all transactions are done. This way of doing is preferred to DOM
|
|
// mutation events listeners because all the changes the user can apply
|
|
// to a document may result in multiple events, some of them quite hard
|
|
// to listen too (in particular when an ancestor of the selection is
|
|
// changed but the selection itself is not changed).
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, NS_ERROR_NOT_INITIALIZED);
|
|
return CheckSelectionStateForAnonymousButtons(selection);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::GetSelectionContainer(Element** aReturn)
|
|
{
|
|
RefPtr<Element> container = GetSelectionContainer();
|
|
container.forget(aReturn);
|
|
return NS_OK;
|
|
}
|
|
|
|
Element*
|
|
HTMLEditor::GetSelectionContainer()
|
|
{
|
|
// If we don't get the selection, just skip this
|
|
NS_ENSURE_TRUE(GetSelection(), nullptr);
|
|
|
|
OwningNonNull<Selection> selection = *GetSelection();
|
|
|
|
nsCOMPtr<nsINode> focusNode;
|
|
|
|
if (selection->IsCollapsed()) {
|
|
focusNode = selection->GetFocusNode();
|
|
} else {
|
|
int32_t rangeCount = selection->RangeCount();
|
|
|
|
if (rangeCount == 1) {
|
|
RefPtr<nsRange> range = selection->GetRangeAt(0);
|
|
|
|
nsCOMPtr<nsINode> startContainer = range->GetStartContainer();
|
|
int32_t startOffset = range->StartOffset();
|
|
nsCOMPtr<nsINode> endContainer = range->GetEndContainer();
|
|
int32_t endOffset = range->EndOffset();
|
|
|
|
if (startContainer == endContainer && startOffset + 1 == endOffset) {
|
|
MOZ_ASSERT(!focusNode, "How did it get set already?");
|
|
focusNode = GetSelectedElement(EmptyString());
|
|
}
|
|
if (!focusNode) {
|
|
focusNode = range->GetCommonAncestor();
|
|
}
|
|
} else {
|
|
for (int32_t i = 0; i < rangeCount; i++) {
|
|
RefPtr<nsRange> range = selection->GetRangeAt(i);
|
|
|
|
nsCOMPtr<nsINode> startContainer = range->GetStartContainer();
|
|
if (!focusNode) {
|
|
focusNode = startContainer;
|
|
} else if (focusNode != startContainer) {
|
|
focusNode = startContainer->GetParentNode();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (focusNode && focusNode->GetAsText()) {
|
|
focusNode = focusNode->GetParentNode();
|
|
}
|
|
|
|
if (focusNode && focusNode->IsElement()) {
|
|
return focusNode->AsElement();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
HTMLEditor::IsAnonymousElement(Element* aElement,
|
|
bool* aReturn)
|
|
{
|
|
NS_ENSURE_TRUE(aElement, NS_ERROR_NULL_POINTER);
|
|
*aReturn = aElement->IsRootOfNativeAnonymousSubtree();
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::SetReturnInParagraphCreatesNewParagraph(bool aCreatesNewParagraph)
|
|
{
|
|
mCRInParagraphCreatesParagraph = aCreatesNewParagraph;
|
|
return NS_OK;
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::GetReturnInParagraphCreatesNewParagraph()
|
|
{
|
|
return mCRInParagraphCreatesParagraph;
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::GetReturnInParagraphCreatesNewParagraph(bool* aCreatesNewParagraph)
|
|
{
|
|
*aCreatesNewParagraph = mCRInParagraphCreatesParagraph;
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIContent*
|
|
HTMLEditor::GetFocusedContent()
|
|
{
|
|
nsFocusManager* fm = nsFocusManager::GetFocusManager();
|
|
NS_ENSURE_TRUE(fm, nullptr);
|
|
|
|
nsCOMPtr<nsIContent> focusedContent = fm->GetFocusedElement();
|
|
|
|
nsCOMPtr<nsIDocument> document = GetDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
return nullptr;
|
|
}
|
|
bool inDesignMode = document->HasFlag(NODE_IS_EDITABLE);
|
|
if (!focusedContent) {
|
|
// in designMode, nobody gets focus in most cases.
|
|
if (inDesignMode && OurWindowHasFocus()) {
|
|
return document->GetRootElement();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
if (inDesignMode) {
|
|
return OurWindowHasFocus() &&
|
|
nsContentUtils::ContentIsDescendantOf(focusedContent, document) ?
|
|
focusedContent.get() : nullptr;
|
|
}
|
|
|
|
// We're HTML editor for contenteditable
|
|
|
|
// If the focused content isn't editable, or it has independent selection,
|
|
// we don't have focus.
|
|
if (!focusedContent->HasFlag(NODE_IS_EDITABLE) ||
|
|
focusedContent->HasIndependentSelection()) {
|
|
return nullptr;
|
|
}
|
|
// If our window is focused, we're focused.
|
|
return OurWindowHasFocus() ? focusedContent.get() : nullptr;
|
|
}
|
|
|
|
already_AddRefed<nsIContent>
|
|
HTMLEditor::GetFocusedContentForIME()
|
|
{
|
|
nsCOMPtr<nsIContent> focusedContent = GetFocusedContent();
|
|
if (!focusedContent) {
|
|
return nullptr;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocument> document = GetDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
return nullptr;
|
|
}
|
|
return document->HasFlag(NODE_IS_EDITABLE) ? nullptr :
|
|
focusedContent.forget();
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::IsActiveInDOMWindow()
|
|
{
|
|
nsFocusManager* fm = nsFocusManager::GetFocusManager();
|
|
NS_ENSURE_TRUE(fm, false);
|
|
|
|
nsCOMPtr<nsIDocument> document = GetDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
return false;
|
|
}
|
|
bool inDesignMode = document->HasFlag(NODE_IS_EDITABLE);
|
|
|
|
// If we're in designMode, we're always active in the DOM window.
|
|
if (inDesignMode) {
|
|
return true;
|
|
}
|
|
|
|
nsPIDOMWindowOuter* ourWindow = document->GetWindow();
|
|
nsCOMPtr<nsPIDOMWindowOuter> win;
|
|
nsIContent* content =
|
|
nsFocusManager::GetFocusedDescendant(ourWindow,
|
|
nsFocusManager::eOnlyCurrentWindow,
|
|
getter_AddRefs(win));
|
|
if (!content) {
|
|
return false;
|
|
}
|
|
|
|
// We're HTML editor for contenteditable
|
|
|
|
// If the active content isn't editable, or it has independent selection,
|
|
// we're not active).
|
|
if (!content->HasFlag(NODE_IS_EDITABLE) ||
|
|
content->HasIndependentSelection()) {
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
Element*
|
|
HTMLEditor::GetActiveEditingHost()
|
|
{
|
|
nsCOMPtr<nsIDocument> document = GetDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
return nullptr;
|
|
}
|
|
if (document->HasFlag(NODE_IS_EDITABLE)) {
|
|
return document->GetBodyElement();
|
|
}
|
|
|
|
// We're HTML editor for contenteditable
|
|
RefPtr<Selection> selection = GetSelection();
|
|
NS_ENSURE_TRUE(selection, nullptr);
|
|
nsINode* focusNode = selection->GetFocusNode();
|
|
if (NS_WARN_IF(!focusNode) || NS_WARN_IF(!focusNode->IsContent())) {
|
|
return nullptr;
|
|
}
|
|
nsIContent* content = focusNode->AsContent();
|
|
|
|
// If the active content isn't editable, or it has independent selection,
|
|
// we're not active.
|
|
if (!content->HasFlag(NODE_IS_EDITABLE) ||
|
|
content->HasIndependentSelection()) {
|
|
return nullptr;
|
|
}
|
|
return content->GetEditingHost();
|
|
}
|
|
|
|
EventTarget*
|
|
HTMLEditor::GetDOMEventTarget()
|
|
{
|
|
// Don't use getDocument here, because we have no way of knowing
|
|
// whether Init() was ever called. So we need to get the document
|
|
// ourselves, if it exists.
|
|
MOZ_ASSERT(IsInitialized(), "The HTMLEditor has not been initialized yet");
|
|
nsCOMPtr<mozilla::dom::EventTarget> target = GetDocument();
|
|
return target;
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::ShouldReplaceRootElement()
|
|
{
|
|
if (!mRootElement) {
|
|
// If we don't know what is our root element, we should find our root.
|
|
return true;
|
|
}
|
|
|
|
// If we temporary set document root element to mRootElement, but there is
|
|
// body element now, we should replace the root element by the body element.
|
|
return mRootElement != GetBodyElement();
|
|
}
|
|
|
|
void
|
|
HTMLEditor::NotifyRootChanged()
|
|
{
|
|
nsCOMPtr<nsIMutationObserver> kungFuDeathGrip(this);
|
|
|
|
RemoveEventListeners();
|
|
nsresult rv = InstallEventListeners();
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
|
|
UpdateRootElement();
|
|
if (!mRootElement) {
|
|
return;
|
|
}
|
|
|
|
rv = BeginningOfDocument();
|
|
if (NS_FAILED(rv)) {
|
|
return;
|
|
}
|
|
|
|
// When this editor has focus, we need to reset the selection limiter to
|
|
// new root. Otherwise, that is going to be done when this gets focus.
|
|
nsCOMPtr<nsINode> node = GetFocusedNode();
|
|
if (node) {
|
|
InitializeSelection(node);
|
|
}
|
|
|
|
SyncRealTimeSpell();
|
|
}
|
|
|
|
Element*
|
|
HTMLEditor::GetBodyElement()
|
|
{
|
|
MOZ_ASSERT(IsInitialized(), "The HTMLEditor hasn't been initialized yet");
|
|
nsCOMPtr<nsIDocument> document = GetDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
return nullptr;
|
|
}
|
|
return document->GetBody();
|
|
}
|
|
|
|
already_AddRefed<nsINode>
|
|
HTMLEditor::GetFocusedNode()
|
|
{
|
|
nsCOMPtr<nsIContent> focusedContent = GetFocusedContent();
|
|
if (!focusedContent) {
|
|
return nullptr;
|
|
}
|
|
|
|
// focusedContent might be non-null even fm->GetFocusedContent() is
|
|
// null. That's the designMode case, and in that case our
|
|
// FocusedContent() returns the root element, but we want to return
|
|
// the document.
|
|
|
|
nsFocusManager* fm = nsFocusManager::GetFocusManager();
|
|
NS_ASSERTION(fm, "Focus manager is null");
|
|
RefPtr<Element> focusedElement = fm->GetFocusedElement();
|
|
if (focusedElement) {
|
|
return focusedElement.forget();
|
|
}
|
|
|
|
nsCOMPtr<nsIDocument> document = GetDocument();
|
|
return document.forget();
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::OurWindowHasFocus()
|
|
{
|
|
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
|
|
NS_ENSURE_TRUE(fm, false);
|
|
nsCOMPtr<mozIDOMWindowProxy> focusedWindow;
|
|
fm->GetFocusedWindow(getter_AddRefs(focusedWindow));
|
|
if (!focusedWindow) {
|
|
return false;
|
|
}
|
|
nsCOMPtr<nsIDocument> document = GetDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
return false;
|
|
}
|
|
nsPIDOMWindowOuter* ourWindow = document->GetWindow();
|
|
return ourWindow == focusedWindow;
|
|
}
|
|
|
|
bool
|
|
HTMLEditor::IsAcceptableInputEvent(WidgetGUIEvent* aGUIEvent)
|
|
{
|
|
if (!EditorBase::IsAcceptableInputEvent(aGUIEvent)) {
|
|
return false;
|
|
}
|
|
|
|
// While there is composition, all composition events in its top level window
|
|
// are always fired on the composing editor. Therefore, if this editor has
|
|
// composition, the composition events should be handled in this editor.
|
|
if (mComposition && aGUIEvent->AsCompositionEvent()) {
|
|
return true;
|
|
}
|
|
|
|
RefPtr<EventTarget> target = aGUIEvent->GetOriginalDOMEventTarget();
|
|
nsCOMPtr<nsIContent> content = do_QueryInterface(target);
|
|
if (content) {
|
|
target = content->FindFirstNonChromeOnlyAccessContent();
|
|
}
|
|
NS_ENSURE_TRUE(target, false);
|
|
|
|
nsCOMPtr<nsIDocument> document = GetDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
return false;
|
|
}
|
|
|
|
if (document->HasFlag(NODE_IS_EDITABLE)) {
|
|
// If this editor is in designMode and the event target is the document,
|
|
// the event is for this editor.
|
|
nsCOMPtr<nsIDocument> targetDocument = do_QueryInterface(target);
|
|
if (targetDocument) {
|
|
return targetDocument == document;
|
|
}
|
|
// Otherwise, check whether the event target is in this document or not.
|
|
nsCOMPtr<nsIContent> targetContent = do_QueryInterface(target);
|
|
NS_ENSURE_TRUE(targetContent, false);
|
|
return document == targetContent->GetUncomposedDoc();
|
|
}
|
|
|
|
// This HTML editor is for contenteditable. We need to check the validity of
|
|
// the target.
|
|
nsCOMPtr<nsIContent> targetContent = do_QueryInterface(target);
|
|
NS_ENSURE_TRUE(targetContent, false);
|
|
|
|
// If the event is a mouse event, we need to check if the target content is
|
|
// the focused editing host or its descendant.
|
|
if (aGUIEvent->AsMouseEventBase()) {
|
|
nsIContent* editingHost = GetActiveEditingHost();
|
|
// If there is no active editing host, we cannot handle the mouse event
|
|
// correctly.
|
|
if (!editingHost) {
|
|
return false;
|
|
}
|
|
// If clicked on non-editable root element but the body element is the
|
|
// active editing host, we should assume that the click event is targetted.
|
|
if (targetContent == document->GetRootElement() &&
|
|
!targetContent->HasFlag(NODE_IS_EDITABLE) &&
|
|
editingHost == document->GetBodyElement()) {
|
|
targetContent = editingHost;
|
|
}
|
|
// If the target element is neither the active editing host nor a descendant
|
|
// of it, we may not be able to handle the event.
|
|
if (!nsContentUtils::ContentIsDescendantOf(targetContent, editingHost)) {
|
|
return false;
|
|
}
|
|
// If the clicked element has an independent selection, we shouldn't
|
|
// handle this click event.
|
|
if (targetContent->HasIndependentSelection()) {
|
|
return false;
|
|
}
|
|
// If the target content is editable, we should handle this event.
|
|
return targetContent->HasFlag(NODE_IS_EDITABLE);
|
|
}
|
|
|
|
// If the target of the other events which target focused element isn't
|
|
// editable or has an independent selection, this editor shouldn't handle the
|
|
// event.
|
|
if (!targetContent->HasFlag(NODE_IS_EDITABLE) ||
|
|
targetContent->HasIndependentSelection()) {
|
|
return false;
|
|
}
|
|
|
|
// Finally, check whether we're actually focused or not. When we're not
|
|
// focused, we should ignore the dispatched event by script (or something)
|
|
// because content editable element needs selection in itself for editing.
|
|
// However, when we're not focused, it's not guaranteed.
|
|
return IsActiveInDOMWindow();
|
|
}
|
|
|
|
nsresult
|
|
HTMLEditor::GetPreferredIMEState(IMEState* aState)
|
|
{
|
|
// HTML editor don't prefer the CSS ime-mode because IE didn't do so too.
|
|
aState->mOpen = IMEState::DONT_CHANGE_OPEN_STATE;
|
|
if (IsReadonly() || IsDisabled()) {
|
|
aState->mEnabled = IMEState::DISABLED;
|
|
} else {
|
|
aState->mEnabled = IMEState::ENABLED;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
already_AddRefed<nsIContent>
|
|
HTMLEditor::GetInputEventTargetContent()
|
|
{
|
|
nsCOMPtr<nsIContent> target = GetActiveEditingHost();
|
|
return target.forget();
|
|
}
|
|
|
|
Element*
|
|
HTMLEditor::GetEditorRoot()
|
|
{
|
|
return GetActiveEditingHost();
|
|
}
|
|
|
|
nsHTMLDocument*
|
|
HTMLEditor::GetHTMLDocument() const
|
|
{
|
|
nsIDocument* doc = GetDocument();
|
|
if (NS_WARN_IF(!doc)) {
|
|
return nullptr;
|
|
}
|
|
if (!doc->IsHTMLOrXHTML()) {
|
|
return nullptr;
|
|
}
|
|
return doc->AsHTMLDocument();
|
|
}
|
|
|
|
} // namespace mozilla
|