| /* |
| * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved. |
| * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies) |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "core/editing/Editor.h" |
| |
| #include "CSSPropertyNames.h" |
| #include "HTMLNames.h" |
| #include "bindings/v8/ExceptionStatePlaceholder.h" |
| #include "core/accessibility/AXObjectCache.h" |
| #include "core/css/CSSComputedStyleDeclaration.h" |
| #include "core/css/StylePropertySet.h" |
| #include "core/dom/Clipboard.h" |
| #include "core/dom/DocumentFragment.h" |
| #include "core/dom/DocumentMarkerController.h" |
| #include "core/dom/NodeList.h" |
| #include "core/dom/NodeTraversal.h" |
| #include "core/dom/ParserContentPolicy.h" |
| #include "core/dom/Text.h" |
| #include "core/editing/ApplyStyleCommand.h" |
| #include "core/editing/DeleteSelectionCommand.h" |
| #include "core/editing/IndentOutdentCommand.h" |
| #include "core/editing/InputMethodController.h" |
| #include "core/editing/InsertListCommand.h" |
| #include "core/editing/ModifySelectionListLevel.h" |
| #include "core/editing/RemoveFormatCommand.h" |
| #include "core/editing/RenderedPosition.h" |
| #include "core/editing/ReplaceSelectionCommand.h" |
| #include "core/editing/SimplifyMarkupCommand.h" |
| #include "core/editing/SpellChecker.h" |
| #include "core/editing/TextIterator.h" |
| #include "core/editing/TypingCommand.h" |
| #include "core/editing/UndoStack.h" |
| #include "core/editing/VisibleUnits.h" |
| #include "core/editing/htmlediting.h" |
| #include "core/editing/markup.h" |
| #include "core/events/ClipboardEvent.h" |
| #include "core/events/KeyboardEvent.h" |
| #include "core/events/ScopedEventQueue.h" |
| #include "core/events/TextEvent.h" |
| #include "core/events/ThreadLocalEventNames.h" |
| #include "core/fetch/ResourceFetcher.h" |
| #include "core/html/HTMLImageElement.h" |
| #include "core/html/HTMLInputElement.h" |
| #include "core/html/HTMLTextAreaElement.h" |
| #include "core/loader/EmptyClients.h" |
| #include "core/page/EditorClient.h" |
| #include "core/page/EventHandler.h" |
| #include "core/page/FocusController.h" |
| #include "core/frame/Frame.h" |
| #include "core/frame/FrameView.h" |
| #include "core/page/Page.h" |
| #include "core/page/Settings.h" |
| #include "core/platform/Pasteboard.h" |
| #include "core/platform/chromium/ChromiumDataObject.h" |
| #include "core/rendering/HitTestResult.h" |
| #include "platform/KillRing.h" |
| #include "wtf/unicode/CharacterNames.h" |
| |
| namespace WebCore { |
| |
| using namespace std; |
| using namespace HTMLNames; |
| using namespace WTF; |
| using namespace Unicode; |
| |
| Editor::RevealSelectionScope::RevealSelectionScope(Editor* editor) |
| : m_editor(editor) |
| { |
| ++m_editor->m_preventRevealSelection; |
| } |
| |
| Editor::RevealSelectionScope::~RevealSelectionScope() |
| { |
| ASSERT(m_editor->m_preventRevealSelection); |
| --m_editor->m_preventRevealSelection; |
| if (!m_editor->m_preventRevealSelection) |
| m_editor->m_frame.selection().revealSelection(ScrollAlignment::alignToEdgeIfNeeded, RevealExtent); |
| } |
| |
| // When an event handler has moved the selection outside of a text control |
| // we should use the target control's selection for this editing operation. |
| VisibleSelection Editor::selectionForCommand(Event* event) |
| { |
| VisibleSelection selection = m_frame.selection().selection(); |
| if (!event) |
| return selection; |
| // If the target is a text control, and the current selection is outside of its shadow tree, |
| // then use the saved selection for that text control. |
| HTMLTextFormControlElement* textFormControlOfSelectionStart = enclosingTextFormControl(selection.start()); |
| HTMLTextFormControlElement* textFromControlOfTarget = isHTMLTextFormControlElement(event->target()->toNode()) ? toHTMLTextFormControlElement(event->target()->toNode()) : 0; |
| if (textFromControlOfTarget && (selection.start().isNull() || textFromControlOfTarget != textFormControlOfSelectionStart)) { |
| if (RefPtr<Range> range = textFromControlOfTarget->selection()) |
| return VisibleSelection(range.get(), DOWNSTREAM, selection.isDirectional()); |
| } |
| return selection; |
| } |
| |
| // Function considers Mac editing behavior a fallback when Page or Settings is not available. |
| EditingBehavior Editor::behavior() const |
| { |
| if (!m_frame.settings()) |
| return EditingBehavior(EditingMacBehavior); |
| |
| return EditingBehavior(m_frame.settings()->editingBehaviorType()); |
| } |
| |
| static EditorClient& emptyEditorClient() |
| { |
| DEFINE_STATIC_LOCAL(EmptyEditorClient, client, ()); |
| return client; |
| } |
| |
| EditorClient& Editor::client() const |
| { |
| if (Page* page = m_frame.page()) |
| return page->editorClient(); |
| return emptyEditorClient(); |
| } |
| |
| UndoStack* Editor::undoStack() const |
| { |
| if (Page* page = m_frame.page()) |
| return &page->undoStack(); |
| return 0; |
| } |
| |
| bool Editor::handleTextEvent(TextEvent* event) |
| { |
| // Default event handling for Drag and Drop will be handled by DragController |
| // so we leave the event for it. |
| if (event->isDrop()) |
| return false; |
| |
| if (event->isPaste()) { |
| if (event->pastingFragment()) |
| replaceSelectionWithFragment(event->pastingFragment(), false, event->shouldSmartReplace(), event->shouldMatchStyle()); |
| else |
| replaceSelectionWithText(event->data(), false, event->shouldSmartReplace()); |
| return true; |
| } |
| |
| String data = event->data(); |
| if (data == "\n") { |
| if (event->isLineBreak()) |
| return insertLineBreak(); |
| return insertParagraphSeparator(); |
| } |
| |
| return insertTextWithoutSendingTextEvent(data, false, event); |
| } |
| |
| bool Editor::canEdit() const |
| { |
| return m_frame.selection().rootEditableElement(); |
| } |
| |
| bool Editor::canEditRichly() const |
| { |
| return m_frame.selection().isContentRichlyEditable(); |
| } |
| |
| // WinIE uses onbeforecut and onbeforepaste to enables the cut and paste menu items. They |
| // also send onbeforecopy, apparently for symmetry, but it doesn't affect the menu items. |
| // We need to use onbeforecopy as a real menu enabler because we allow elements that are not |
| // normally selectable to implement copy/paste (like divs, or a document body). |
| |
| bool Editor::canDHTMLCut() |
| { |
| return !m_frame.selection().isInPasswordField() && !dispatchCPPEvent(EventTypeNames::beforecut, ClipboardNumb); |
| } |
| |
| bool Editor::canDHTMLCopy() |
| { |
| return !m_frame.selection().isInPasswordField() && !dispatchCPPEvent(EventTypeNames::beforecopy, ClipboardNumb); |
| } |
| |
| bool Editor::canDHTMLPaste() |
| { |
| return !dispatchCPPEvent(EventTypeNames::beforepaste, ClipboardNumb); |
| } |
| |
| bool Editor::canCut() const |
| { |
| return canCopy() && canDelete(); |
| } |
| |
| static HTMLImageElement* imageElementFromImageDocument(Document* document) |
| { |
| if (!document) |
| return 0; |
| if (!document->isImageDocument()) |
| return 0; |
| |
| HTMLElement* body = document->body(); |
| if (!body) |
| return 0; |
| |
| Node* node = body->firstChild(); |
| if (!node) |
| return 0; |
| if (!node->hasTagName(imgTag)) |
| return 0; |
| return toHTMLImageElement(node); |
| } |
| |
| bool Editor::canCopy() const |
| { |
| if (imageElementFromImageDocument(m_frame.document())) |
| return true; |
| FrameSelection& selection = m_frame.selection(); |
| return selection.isRange() && !selection.isInPasswordField(); |
| } |
| |
| bool Editor::canPaste() const |
| { |
| return canEdit(); |
| } |
| |
| bool Editor::canDelete() const |
| { |
| FrameSelection& selection = m_frame.selection(); |
| return selection.isRange() && selection.rootEditableElement(); |
| } |
| |
| bool Editor::canDeleteRange(Range* range) const |
| { |
| Node* startContainer = range->startContainer(); |
| Node* endContainer = range->endContainer(); |
| if (!startContainer || !endContainer) |
| return false; |
| |
| if (!startContainer->rendererIsEditable() || !endContainer->rendererIsEditable()) |
| return false; |
| |
| if (range->collapsed(IGNORE_EXCEPTION)) { |
| VisiblePosition start(range->startPosition(), DOWNSTREAM); |
| VisiblePosition previous = start.previous(); |
| // FIXME: We sometimes allow deletions at the start of editable roots, like when the caret is in an empty list item. |
| if (previous.isNull() || previous.deepEquivalent().deprecatedNode()->rootEditableElement() != startContainer->rootEditableElement()) |
| return false; |
| } |
| return true; |
| } |
| |
| bool Editor::smartInsertDeleteEnabled() const |
| { |
| if (Settings* settings = m_frame.settings()) |
| return settings->smartInsertDeleteEnabled(); |
| return false; |
| } |
| |
| bool Editor::canSmartCopyOrDelete() const |
| { |
| return smartInsertDeleteEnabled() && m_frame.selection().granularity() == WordGranularity; |
| } |
| |
| bool Editor::isSelectTrailingWhitespaceEnabled() const |
| { |
| if (Settings* settings = m_frame.settings()) |
| return settings->selectTrailingWhitespaceEnabled(); |
| return false; |
| } |
| |
| bool Editor::deleteWithDirection(SelectionDirection direction, TextGranularity granularity, bool killRing, bool isTypingAction) |
| { |
| if (!canEdit()) |
| return false; |
| |
| if (m_frame.selection().isRange()) { |
| if (isTypingAction) { |
| ASSERT(m_frame.document()); |
| TypingCommand::deleteKeyPressed(*m_frame.document(), canSmartCopyOrDelete() ? TypingCommand::SmartDelete : 0, granularity); |
| revealSelectionAfterEditingOperation(); |
| } else { |
| if (killRing) |
| addToKillRing(selectedRange().get(), false); |
| deleteSelectionWithSmartDelete(canSmartCopyOrDelete()); |
| // Implicitly calls revealSelectionAfterEditingOperation(). |
| } |
| } else { |
| TypingCommand::Options options = 0; |
| if (canSmartCopyOrDelete()) |
| options |= TypingCommand::SmartDelete; |
| if (killRing) |
| options |= TypingCommand::KillRing; |
| switch (direction) { |
| case DirectionForward: |
| case DirectionRight: |
| ASSERT(m_frame.document()); |
| TypingCommand::forwardDeleteKeyPressed(*m_frame.document(), options, granularity); |
| break; |
| case DirectionBackward: |
| case DirectionLeft: |
| ASSERT(m_frame.document()); |
| TypingCommand::deleteKeyPressed(*m_frame.document(), options, granularity); |
| break; |
| } |
| revealSelectionAfterEditingOperation(); |
| } |
| |
| // FIXME: We should to move this down into deleteKeyPressed. |
| // clear the "start new kill ring sequence" setting, because it was set to true |
| // when the selection was updated by deleting the range |
| if (killRing) |
| setStartNewKillRingSequence(false); |
| |
| return true; |
| } |
| |
| void Editor::deleteSelectionWithSmartDelete(bool smartDelete) |
| { |
| if (m_frame.selection().isNone()) |
| return; |
| |
| ASSERT(m_frame.document()); |
| DeleteSelectionCommand::create(*m_frame.document(), smartDelete)->apply(); |
| } |
| |
| void Editor::pasteAsPlainText(const String& pastingText, bool smartReplace) |
| { |
| Node* target = findEventTargetFromSelection(); |
| if (!target) |
| return; |
| target->dispatchEvent(TextEvent::createForPlainTextPaste(m_frame.domWindow(), pastingText, smartReplace), IGNORE_EXCEPTION); |
| } |
| |
| void Editor::pasteAsFragment(PassRefPtr<DocumentFragment> pastingFragment, bool smartReplace, bool matchStyle) |
| { |
| Node* target = findEventTargetFromSelection(); |
| if (!target) |
| return; |
| target->dispatchEvent(TextEvent::createForFragmentPaste(m_frame.domWindow(), pastingFragment, smartReplace, matchStyle), IGNORE_EXCEPTION); |
| } |
| |
| bool Editor::tryDHTMLCopy() |
| { |
| if (m_frame.selection().isInPasswordField()) |
| return false; |
| |
| return !dispatchCPPEvent(EventTypeNames::copy, ClipboardWritable); |
| } |
| |
| bool Editor::tryDHTMLCut() |
| { |
| if (m_frame.selection().isInPasswordField()) |
| return false; |
| |
| return !dispatchCPPEvent(EventTypeNames::cut, ClipboardWritable); |
| } |
| |
| bool Editor::tryDHTMLPaste(PasteMode pasteMode) |
| { |
| return !dispatchCPPEvent(EventTypeNames::paste, ClipboardReadable, pasteMode); |
| } |
| |
| void Editor::pasteAsPlainTextWithPasteboard(Pasteboard* pasteboard) |
| { |
| String text = pasteboard->plainText(); |
| pasteAsPlainText(text, canSmartReplaceWithPasteboard(pasteboard)); |
| } |
| |
| void Editor::pasteWithPasteboard(Pasteboard* pasteboard) |
| { |
| RefPtr<Range> range = selectedRange(); |
| RefPtr<DocumentFragment> fragment; |
| bool chosePlainText = false; |
| |
| if (pasteboard->isHTMLAvailable()) { |
| unsigned fragmentStart = 0; |
| unsigned fragmentEnd = 0; |
| KURL url; |
| String markup = pasteboard->readHTML(url, fragmentStart, fragmentEnd); |
| if (!markup.isEmpty()) { |
| ASSERT(m_frame.document()); |
| fragment = createFragmentFromMarkupWithContext(*m_frame.document(), markup, fragmentStart, fragmentEnd, url, DisallowScriptingAndPluginContent); |
| } |
| } |
| |
| if (!fragment) { |
| String text = pasteboard->plainText(); |
| if (!text.isEmpty()) { |
| chosePlainText = true; |
| fragment = createFragmentFromText(range.get(), text); |
| } |
| } |
| |
| if (fragment) |
| pasteAsFragment(fragment, canSmartReplaceWithPasteboard(pasteboard), chosePlainText); |
| } |
| |
| void Editor::writeSelectionToPasteboard(Pasteboard* pasteboard, Range* selectedRange, const String& plainText) |
| { |
| String html = createMarkup(selectedRange, 0, AnnotateForInterchange, false, ResolveNonLocalURLs); |
| KURL url = selectedRange->startContainer()->document().url(); |
| pasteboard->writeHTML(html, url, plainText, canSmartCopyOrDelete()); |
| } |
| |
| // Returns whether caller should continue with "the default processing", which is the same as |
| // the event handler NOT setting the return value to false |
| bool Editor::dispatchCPPEvent(const AtomicString &eventType, ClipboardAccessPolicy policy, PasteMode pasteMode) |
| { |
| Node* target = findEventTargetFromSelection(); |
| if (!target) |
| return true; |
| |
| RefPtr<Clipboard> clipboard = Clipboard::create( |
| Clipboard::CopyAndPaste, |
| policy, |
| policy == ClipboardWritable |
| ? ChromiumDataObject::create() |
| : ChromiumDataObject::createFromPasteboard(pasteMode)); |
| |
| RefPtr<Event> evt = ClipboardEvent::create(eventType, true, true, clipboard); |
| target->dispatchEvent(evt, IGNORE_EXCEPTION); |
| bool noDefaultProcessing = evt->defaultPrevented(); |
| if (noDefaultProcessing && policy == ClipboardWritable) { |
| RefPtr<ChromiumDataObject> dataObject = clipboard->dataObject(); |
| Pasteboard::generalPasteboard()->writeDataObject(dataObject.release()); |
| } |
| |
| // invalidate clipboard here for security |
| clipboard->setAccessPolicy(ClipboardNumb); |
| |
| return !noDefaultProcessing; |
| } |
| |
| bool Editor::canSmartReplaceWithPasteboard(Pasteboard* pasteboard) |
| { |
| return smartInsertDeleteEnabled() && pasteboard->canSmartReplace(); |
| } |
| |
| void Editor::replaceSelectionWithFragment(PassRefPtr<DocumentFragment> fragment, bool selectReplacement, bool smartReplace, bool matchStyle) |
| { |
| if (m_frame.selection().isNone() || !m_frame.selection().isContentEditable() || !fragment) |
| return; |
| |
| ReplaceSelectionCommand::CommandOptions options = ReplaceSelectionCommand::PreventNesting | ReplaceSelectionCommand::SanitizeFragment; |
| if (selectReplacement) |
| options |= ReplaceSelectionCommand::SelectReplacement; |
| if (smartReplace) |
| options |= ReplaceSelectionCommand::SmartReplace; |
| if (matchStyle) |
| options |= ReplaceSelectionCommand::MatchStyle; |
| ASSERT(m_frame.document()); |
| ReplaceSelectionCommand::create(*m_frame.document(), fragment, options, EditActionPaste)->apply(); |
| revealSelectionAfterEditingOperation(); |
| |
| if (m_frame.selection().isInPasswordField() || !spellChecker().isContinuousSpellCheckingEnabled()) |
| return; |
| spellChecker().chunkAndMarkAllMisspellingsAndBadGrammar(m_frame.selection().rootEditableElement()); |
| } |
| |
| void Editor::replaceSelectionWithText(const String& text, bool selectReplacement, bool smartReplace) |
| { |
| replaceSelectionWithFragment(createFragmentFromText(selectedRange().get(), text), selectReplacement, smartReplace, true); |
| } |
| |
| PassRefPtr<Range> Editor::selectedRange() |
| { |
| return m_frame.selection().toNormalizedRange(); |
| } |
| |
| bool Editor::shouldDeleteRange(Range* range) const |
| { |
| if (!range || range->collapsed(IGNORE_EXCEPTION)) |
| return false; |
| |
| return canDeleteRange(range); |
| } |
| |
| void Editor::notifyComponentsOnChangedSelection(const VisibleSelection& oldSelection, FrameSelection::SetSelectionOptions options) |
| { |
| client().respondToChangedSelection(m_frame.selection().selectionType()); |
| setStartNewKillRingSequence(true); |
| } |
| |
| void Editor::respondToChangedContents(const VisibleSelection& endingSelection) |
| { |
| if (AXObjectCache::accessibilityEnabled()) { |
| Node* node = endingSelection.start().deprecatedNode(); |
| if (AXObjectCache* cache = m_frame.document()->existingAXObjectCache()) |
| cache->postNotification(node, AXObjectCache::AXValueChanged, false); |
| } |
| |
| spellChecker().updateMarkersForWordsAffectedByEditing(true); |
| client().respondToChangedContents(); |
| } |
| |
| TriState Editor::selectionUnorderedListState() const |
| { |
| if (m_frame.selection().isCaret()) { |
| if (enclosingNodeWithTag(m_frame.selection().selection().start(), ulTag)) |
| return TrueTriState; |
| } else if (m_frame.selection().isRange()) { |
| Node* startNode = enclosingNodeWithTag(m_frame.selection().selection().start(), ulTag); |
| Node* endNode = enclosingNodeWithTag(m_frame.selection().selection().end(), ulTag); |
| if (startNode && endNode && startNode == endNode) |
| return TrueTriState; |
| } |
| |
| return FalseTriState; |
| } |
| |
| TriState Editor::selectionOrderedListState() const |
| { |
| if (m_frame.selection().isCaret()) { |
| if (enclosingNodeWithTag(m_frame.selection().selection().start(), olTag)) |
| return TrueTriState; |
| } else if (m_frame.selection().isRange()) { |
| Node* startNode = enclosingNodeWithTag(m_frame.selection().selection().start(), olTag); |
| Node* endNode = enclosingNodeWithTag(m_frame.selection().selection().end(), olTag); |
| if (startNode && endNode && startNode == endNode) |
| return TrueTriState; |
| } |
| |
| return FalseTriState; |
| } |
| |
| PassRefPtr<Node> Editor::insertOrderedList() |
| { |
| if (!canEditRichly()) |
| return 0; |
| |
| ASSERT(m_frame.document()); |
| RefPtr<Node> newList = InsertListCommand::insertList(*m_frame.document(), InsertListCommand::OrderedList); |
| revealSelectionAfterEditingOperation(); |
| return newList; |
| } |
| |
| PassRefPtr<Node> Editor::insertUnorderedList() |
| { |
| if (!canEditRichly()) |
| return 0; |
| |
| ASSERT(m_frame.document()); |
| RefPtr<Node> newList = InsertListCommand::insertList(*m_frame.document(), InsertListCommand::UnorderedList); |
| revealSelectionAfterEditingOperation(); |
| return newList; |
| } |
| |
| bool Editor::canIncreaseSelectionListLevel() |
| { |
| ASSERT(m_frame.document()); |
| return canEditRichly() && IncreaseSelectionListLevelCommand::canIncreaseSelectionListLevel(*m_frame.document()); |
| } |
| |
| bool Editor::canDecreaseSelectionListLevel() |
| { |
| ASSERT(m_frame.document()); |
| return canEditRichly() && DecreaseSelectionListLevelCommand::canDecreaseSelectionListLevel(*m_frame.document()); |
| } |
| |
| PassRefPtr<Node> Editor::increaseSelectionListLevel() |
| { |
| if (!canEditRichly() || m_frame.selection().isNone()) |
| return 0; |
| |
| ASSERT(m_frame.document()); |
| RefPtr<Node> newList = IncreaseSelectionListLevelCommand::increaseSelectionListLevel(*m_frame.document()); |
| revealSelectionAfterEditingOperation(); |
| return newList; |
| } |
| |
| PassRefPtr<Node> Editor::increaseSelectionListLevelOrdered() |
| { |
| if (!canEditRichly() || m_frame.selection().isNone()) |
| return 0; |
| |
| ASSERT(m_frame.document()); |
| RefPtr<Node> newList = IncreaseSelectionListLevelCommand::increaseSelectionListLevelOrdered(*m_frame.document()); |
| revealSelectionAfterEditingOperation(); |
| return newList.release(); |
| } |
| |
| PassRefPtr<Node> Editor::increaseSelectionListLevelUnordered() |
| { |
| if (!canEditRichly() || m_frame.selection().isNone()) |
| return 0; |
| |
| ASSERT(m_frame.document()); |
| RefPtr<Node> newList = IncreaseSelectionListLevelCommand::increaseSelectionListLevelUnordered(*m_frame.document()); |
| revealSelectionAfterEditingOperation(); |
| return newList.release(); |
| } |
| |
| void Editor::decreaseSelectionListLevel() |
| { |
| if (!canEditRichly() || m_frame.selection().isNone()) |
| return; |
| |
| ASSERT(m_frame.document()); |
| DecreaseSelectionListLevelCommand::decreaseSelectionListLevel(*m_frame.document()); |
| revealSelectionAfterEditingOperation(); |
| } |
| |
| void Editor::removeFormattingAndStyle() |
| { |
| ASSERT(m_frame.document()); |
| RemoveFormatCommand::create(*m_frame.document())->apply(); |
| } |
| |
| void Editor::clearLastEditCommand() |
| { |
| m_lastEditCommand.clear(); |
| } |
| |
| Node* Editor::findEventTargetFrom(const VisibleSelection& selection) const |
| { |
| Node* target = selection.start().element(); |
| if (!target) |
| target = m_frame.document()->body(); |
| |
| return target; |
| } |
| |
| Node* Editor::findEventTargetFromSelection() const |
| { |
| return findEventTargetFrom(m_frame.selection().selection()); |
| } |
| |
| void Editor::applyStyle(StylePropertySet* style, EditAction editingAction) |
| { |
| switch (m_frame.selection().selectionType()) { |
| case NoSelection: |
| // do nothing |
| break; |
| case CaretSelection: |
| computeAndSetTypingStyle(style, editingAction); |
| break; |
| case RangeSelection: |
| if (style) { |
| ASSERT(m_frame.document()); |
| ApplyStyleCommand::create(*m_frame.document(), EditingStyle::create(style).get(), editingAction)->apply(); |
| } |
| break; |
| } |
| } |
| |
| void Editor::applyParagraphStyle(StylePropertySet* style, EditAction editingAction) |
| { |
| if (m_frame.selection().isNone() || !style) |
| return; |
| ASSERT(m_frame.document()); |
| ApplyStyleCommand::create(*m_frame.document(), EditingStyle::create(style).get(), editingAction, ApplyStyleCommand::ForceBlockProperties)->apply(); |
| } |
| |
| void Editor::applyStyleToSelection(StylePropertySet* style, EditAction editingAction) |
| { |
| if (!style || style->isEmpty() || !canEditRichly()) |
| return; |
| |
| applyStyle(style, editingAction); |
| } |
| |
| void Editor::applyParagraphStyleToSelection(StylePropertySet* style, EditAction editingAction) |
| { |
| if (!style || style->isEmpty() || !canEditRichly()) |
| return; |
| |
| applyParagraphStyle(style, editingAction); |
| } |
| |
| bool Editor::selectionStartHasStyle(CSSPropertyID propertyID, const String& value) const |
| { |
| return EditingStyle::create(propertyID, value)->triStateOfStyle( |
| EditingStyle::styleAtSelectionStart(m_frame.selection().selection(), propertyID == CSSPropertyBackgroundColor).get()); |
| } |
| |
| TriState Editor::selectionHasStyle(CSSPropertyID propertyID, const String& value) const |
| { |
| return EditingStyle::create(propertyID, value)->triStateOfStyle(m_frame.selection().selection()); |
| } |
| |
| String Editor::selectionStartCSSPropertyValue(CSSPropertyID propertyID) |
| { |
| RefPtr<EditingStyle> selectionStyle = EditingStyle::styleAtSelectionStart(m_frame.selection().selection(), |
| propertyID == CSSPropertyBackgroundColor); |
| if (!selectionStyle || !selectionStyle->style()) |
| return String(); |
| |
| if (propertyID == CSSPropertyFontSize) |
| return String::number(selectionStyle->legacyFontSize(m_frame.document())); |
| return selectionStyle->style()->getPropertyValue(propertyID); |
| } |
| |
| void Editor::indent() |
| { |
| ASSERT(m_frame.document()); |
| IndentOutdentCommand::create(*m_frame.document(), IndentOutdentCommand::Indent)->apply(); |
| } |
| |
| void Editor::outdent() |
| { |
| ASSERT(m_frame.document()); |
| IndentOutdentCommand::create(*m_frame.document(), IndentOutdentCommand::Outdent)->apply(); |
| } |
| |
| static void dispatchEditableContentChangedEvents(PassRefPtr<Element> startRoot, PassRefPtr<Element> endRoot) |
| { |
| if (startRoot) |
| startRoot->dispatchEvent(Event::create(EventTypeNames::webkitEditableContentChanged), IGNORE_EXCEPTION); |
| if (endRoot && endRoot != startRoot) |
| endRoot->dispatchEvent(Event::create(EventTypeNames::webkitEditableContentChanged), IGNORE_EXCEPTION); |
| } |
| |
| void Editor::appliedEditing(PassRefPtr<CompositeEditCommand> cmd) |
| { |
| EventQueueScope scope; |
| m_frame.document()->updateLayout(); |
| |
| EditCommandComposition* composition = cmd->composition(); |
| ASSERT(composition); |
| dispatchEditableContentChangedEvents(composition->startingRootEditableElement(), composition->endingRootEditableElement()); |
| VisibleSelection newSelection(cmd->endingSelection()); |
| |
| // Don't clear the typing style with this selection change. We do those things elsewhere if necessary. |
| changeSelectionAfterCommand(newSelection, 0); |
| |
| if (!cmd->preservesTypingStyle()) |
| m_frame.selection().clearTypingStyle(); |
| |
| // Command will be equal to last edit command only in the case of typing |
| if (m_lastEditCommand.get() == cmd) { |
| ASSERT(cmd->isTypingCommand()); |
| } else { |
| // Only register a new undo command if the command passed in is |
| // different from the last command |
| m_lastEditCommand = cmd; |
| if (UndoStack* undoStack = this->undoStack()) |
| undoStack->registerUndoStep(m_lastEditCommand->ensureComposition()); |
| } |
| |
| respondToChangedContents(newSelection); |
| } |
| |
| void Editor::unappliedEditing(PassRefPtr<EditCommandComposition> cmd) |
| { |
| EventQueueScope scope; |
| m_frame.document()->updateLayout(); |
| |
| dispatchEditableContentChangedEvents(cmd->startingRootEditableElement(), cmd->endingRootEditableElement()); |
| |
| VisibleSelection newSelection(cmd->startingSelection()); |
| changeSelectionAfterCommand(newSelection, FrameSelection::CloseTyping | FrameSelection::ClearTypingStyle); |
| |
| m_lastEditCommand = 0; |
| if (UndoStack* undoStack = this->undoStack()) |
| undoStack->registerRedoStep(cmd); |
| respondToChangedContents(newSelection); |
| } |
| |
| void Editor::reappliedEditing(PassRefPtr<EditCommandComposition> cmd) |
| { |
| EventQueueScope scope; |
| m_frame.document()->updateLayout(); |
| |
| dispatchEditableContentChangedEvents(cmd->startingRootEditableElement(), cmd->endingRootEditableElement()); |
| |
| VisibleSelection newSelection(cmd->endingSelection()); |
| changeSelectionAfterCommand(newSelection, FrameSelection::CloseTyping | FrameSelection::ClearTypingStyle); |
| |
| m_lastEditCommand = 0; |
| if (UndoStack* undoStack = this->undoStack()) |
| undoStack->registerUndoStep(cmd); |
| respondToChangedContents(newSelection); |
| } |
| |
| PassOwnPtr<Editor> Editor::create(Frame& frame) |
| { |
| return adoptPtr(new Editor(frame)); |
| } |
| |
| Editor::Editor(Frame& frame) |
| : m_frame(frame) |
| , m_preventRevealSelection(0) |
| , m_shouldStartNewKillRingSequence(false) |
| // This is off by default, since most editors want this behavior (this matches IE but not FF). |
| , m_shouldStyleWithCSS(false) |
| , m_killRing(adoptPtr(new KillRing)) |
| , m_areMarkedTextMatchesHighlighted(false) |
| , m_defaultParagraphSeparator(EditorParagraphSeparatorIsDiv) |
| , m_overwriteModeEnabled(false) |
| { |
| } |
| |
| Editor::~Editor() |
| { |
| } |
| |
| void Editor::clear() |
| { |
| m_frame.inputMethodController().clear(); |
| m_shouldStyleWithCSS = false; |
| m_defaultParagraphSeparator = EditorParagraphSeparatorIsDiv; |
| } |
| |
| bool Editor::insertText(const String& text, Event* triggeringEvent) |
| { |
| return m_frame.eventHandler().handleTextInputEvent(text, triggeringEvent); |
| } |
| |
| bool Editor::insertTextWithoutSendingTextEvent(const String& text, bool selectInsertedText, TextEvent* triggeringEvent) |
| { |
| if (text.isEmpty()) |
| return false; |
| |
| VisibleSelection selection = selectionForCommand(triggeringEvent); |
| if (!selection.isContentEditable()) |
| return false; |
| RefPtr<Range> range = selection.toNormalizedRange(); |
| |
| spellChecker().updateMarkersForWordsAffectedByEditing(isSpaceOrNewline(text[0])); |
| |
| // Get the selection to use for the event that triggered this insertText. |
| // If the event handler changed the selection, we may want to use a different selection |
| // that is contained in the event target. |
| selection = selectionForCommand(triggeringEvent); |
| if (selection.isContentEditable()) { |
| if (Node* selectionStart = selection.start().deprecatedNode()) { |
| RefPtr<Document> document(selectionStart->document()); |
| |
| // Insert the text |
| TypingCommand::Options options = 0; |
| if (selectInsertedText) |
| options |= TypingCommand::SelectInsertedText; |
| TypingCommand::insertText(*document.get(), text, selection, options, triggeringEvent && triggeringEvent->isComposition() ? TypingCommand::TextCompositionConfirm : TypingCommand::TextCompositionNone); |
| |
| // Reveal the current selection |
| if (Frame* editedFrame = document->frame()) { |
| if (Page* page = editedFrame->page()) |
| page->focusController().focusedOrMainFrame()->selection().revealSelection(ScrollAlignment::alignCenterIfNeeded); |
| } |
| } |
| } |
| |
| return true; |
| } |
| |
| bool Editor::insertLineBreak() |
| { |
| if (!canEdit()) |
| return false; |
| |
| VisiblePosition caret = m_frame.selection().selection().visibleStart(); |
| bool alignToEdge = isEndOfEditableOrNonEditableContent(caret); |
| ASSERT(m_frame.document()); |
| TypingCommand::insertLineBreak(*m_frame.document(), 0); |
| revealSelectionAfterEditingOperation(alignToEdge ? ScrollAlignment::alignToEdgeIfNeeded : ScrollAlignment::alignCenterIfNeeded); |
| |
| return true; |
| } |
| |
| bool Editor::insertParagraphSeparator() |
| { |
| if (!canEdit()) |
| return false; |
| |
| if (!canEditRichly()) |
| return insertLineBreak(); |
| |
| VisiblePosition caret = m_frame.selection().selection().visibleStart(); |
| bool alignToEdge = isEndOfEditableOrNonEditableContent(caret); |
| ASSERT(m_frame.document()); |
| TypingCommand::insertParagraphSeparator(*m_frame.document(), 0); |
| revealSelectionAfterEditingOperation(alignToEdge ? ScrollAlignment::alignToEdgeIfNeeded : ScrollAlignment::alignCenterIfNeeded); |
| |
| return true; |
| } |
| |
| void Editor::cut() |
| { |
| if (tryDHTMLCut()) |
| return; // DHTML did the whole operation |
| if (!canCut()) |
| return; |
| RefPtr<Range> selection = selectedRange(); |
| if (shouldDeleteRange(selection.get())) { |
| spellChecker().updateMarkersForWordsAffectedByEditing(true); |
| String plainText = m_frame.selectedTextForClipboard(); |
| if (enclosingTextFormControl(m_frame.selection().start())) { |
| Pasteboard::generalPasteboard()->writePlainText(plainText, |
| canSmartCopyOrDelete() ? Pasteboard::CanSmartReplace : Pasteboard::CannotSmartReplace); |
| } else { |
| writeSelectionToPasteboard(Pasteboard::generalPasteboard(), selection.get(), plainText); |
| } |
| deleteSelectionWithSmartDelete(canSmartCopyOrDelete()); |
| } |
| } |
| |
| void Editor::copy() |
| { |
| if (tryDHTMLCopy()) |
| return; // DHTML did the whole operation |
| if (!canCopy()) |
| return; |
| if (enclosingTextFormControl(m_frame.selection().start())) { |
| Pasteboard::generalPasteboard()->writePlainText(m_frame.selectedTextForClipboard(), |
| canSmartCopyOrDelete() ? Pasteboard::CanSmartReplace : Pasteboard::CannotSmartReplace); |
| } else { |
| Document* document = m_frame.document(); |
| if (HTMLImageElement* imageElement = imageElementFromImageDocument(document)) |
| Pasteboard::generalPasteboard()->writeImage(imageElement, document->url(), document->title()); |
| else |
| writeSelectionToPasteboard(Pasteboard::generalPasteboard(), selectedRange().get(), m_frame.selectedTextForClipboard()); |
| } |
| } |
| |
| void Editor::paste() |
| { |
| ASSERT(m_frame.document()); |
| if (tryDHTMLPaste(AllMimeTypes)) |
| return; // DHTML did the whole operation |
| if (!canPaste()) |
| return; |
| spellChecker().updateMarkersForWordsAffectedByEditing(false); |
| ResourceFetcher* loader = m_frame.document()->fetcher(); |
| ResourceCacheValidationSuppressor validationSuppressor(loader); |
| if (m_frame.selection().isContentRichlyEditable()) |
| pasteWithPasteboard(Pasteboard::generalPasteboard()); |
| else |
| pasteAsPlainTextWithPasteboard(Pasteboard::generalPasteboard()); |
| } |
| |
| void Editor::pasteAsPlainText() |
| { |
| if (tryDHTMLPaste(PlainTextOnly)) |
| return; |
| if (!canPaste()) |
| return; |
| spellChecker().updateMarkersForWordsAffectedByEditing(false); |
| pasteAsPlainTextWithPasteboard(Pasteboard::generalPasteboard()); |
| } |
| |
| void Editor::performDelete() |
| { |
| if (!canDelete()) |
| return; |
| addToKillRing(selectedRange().get(), false); |
| deleteSelectionWithSmartDelete(canSmartCopyOrDelete()); |
| |
| // clear the "start new kill ring sequence" setting, because it was set to true |
| // when the selection was updated by deleting the range |
| setStartNewKillRingSequence(false); |
| } |
| |
| void Editor::copyImage(const HitTestResult& result) |
| { |
| KURL url = result.absoluteLinkURL(); |
| if (url.isEmpty()) |
| url = result.absoluteImageURL(); |
| |
| Pasteboard::generalPasteboard()->writeImage(result.innerNonSharedNode(), url, result.altDisplayString()); |
| } |
| |
| void Editor::clearUndoRedoOperations() |
| { |
| if (UndoStack* undoStack = this->undoStack()) |
| undoStack->clearUndoRedoOperations(); |
| } |
| |
| bool Editor::canUndo() |
| { |
| if (UndoStack* undoStack = this->undoStack()) |
| return undoStack->canUndo(); |
| return false; |
| } |
| |
| void Editor::undo() |
| { |
| if (UndoStack* undoStack = this->undoStack()) |
| undoStack->undo(); |
| } |
| |
| bool Editor::canRedo() |
| { |
| if (UndoStack* undoStack = this->undoStack()) |
| return undoStack->canRedo(); |
| return false; |
| } |
| |
| void Editor::redo() |
| { |
| if (UndoStack* undoStack = this->undoStack()) |
| undoStack->redo(); |
| } |
| |
| void Editor::setBaseWritingDirection(WritingDirection direction) |
| { |
| Node* focusedElement = frame().document()->focusedElement(); |
| if (focusedElement && isHTMLTextFormControlElement(focusedElement)) { |
| if (direction == NaturalWritingDirection) |
| return; |
| toHTMLElement(focusedElement)->setAttribute(dirAttr, direction == LeftToRightWritingDirection ? "ltr" : "rtl"); |
| focusedElement->dispatchInputEvent(); |
| frame().document()->updateStyleIfNeeded(); |
| return; |
| } |
| |
| RefPtr<MutableStylePropertySet> style = MutableStylePropertySet::create(); |
| style->setProperty(CSSPropertyDirection, direction == LeftToRightWritingDirection ? "ltr" : direction == RightToLeftWritingDirection ? "rtl" : "inherit", false); |
| applyParagraphStyleToSelection(style.get(), EditActionSetWritingDirection); |
| } |
| |
| void Editor::revealSelectionAfterEditingOperation(const ScrollAlignment& alignment, RevealExtentOption revealExtentOption) |
| { |
| if (m_preventRevealSelection) |
| return; |
| |
| m_frame.selection().revealSelection(alignment, revealExtentOption); |
| } |
| |
| void Editor::transpose() |
| { |
| if (!canEdit()) |
| return; |
| |
| VisibleSelection selection = m_frame.selection().selection(); |
| if (!selection.isCaret()) |
| return; |
| |
| // Make a selection that goes back one character and forward two characters. |
| VisiblePosition caret = selection.visibleStart(); |
| VisiblePosition next = isEndOfParagraph(caret) ? caret : caret.next(); |
| VisiblePosition previous = next.previous(); |
| if (next == previous) |
| return; |
| previous = previous.previous(); |
| if (!inSameParagraph(next, previous)) |
| return; |
| RefPtr<Range> range = makeRange(previous, next); |
| if (!range) |
| return; |
| VisibleSelection newSelection(range.get(), DOWNSTREAM); |
| |
| // Transpose the two characters. |
| String text = plainText(range.get()); |
| if (text.length() != 2) |
| return; |
| String transposed = text.right(1) + text.left(1); |
| |
| // Select the two characters. |
| if (newSelection != m_frame.selection().selection()) |
| m_frame.selection().setSelection(newSelection); |
| |
| // Insert the transposed characters. |
| replaceSelectionWithText(transposed, false, false); |
| } |
| |
| void Editor::addToKillRing(Range* range, bool prepend) |
| { |
| if (m_shouldStartNewKillRingSequence) |
| killRing().startNewSequence(); |
| |
| String text = plainText(range); |
| if (prepend) |
| killRing().prepend(text); |
| else |
| killRing().append(text); |
| m_shouldStartNewKillRingSequence = false; |
| } |
| |
| void Editor::changeSelectionAfterCommand(const VisibleSelection& newSelection, FrameSelection::SetSelectionOptions options) |
| { |
| // If the new selection is orphaned, then don't update the selection. |
| if (newSelection.start().isOrphan() || newSelection.end().isOrphan()) |
| return; |
| |
| // See <rdar://problem/5729315> Some shouldChangeSelectedDOMRange contain Ranges for selections that are no longer valid |
| bool selectionDidNotChangeDOMPosition = newSelection == m_frame.selection().selection(); |
| m_frame.selection().setSelection(newSelection, options); |
| |
| // Some editing operations change the selection visually without affecting its position within the DOM. |
| // For example when you press return in the following (the caret is marked by ^): |
| // <div contentEditable="true"><div>^Hello</div></div> |
| // WebCore inserts <div><br></div> *before* the current block, which correctly moves the paragraph down but which doesn't |
| // change the caret's DOM position (["hello", 0]). In these situations the above FrameSelection::setSelection call |
| // does not call EditorClient::respondToChangedSelection(), which, on the Mac, sends selection change notifications and |
| // starts a new kill ring sequence, but we want to do these things (matches AppKit). |
| if (selectionDidNotChangeDOMPosition) |
| client().respondToChangedSelection(m_frame.selection().selectionType()); |
| } |
| |
| IntRect Editor::firstRectForRange(Range* range) const |
| { |
| LayoutUnit extraWidthToEndOfLine = 0; |
| ASSERT(range->startContainer()); |
| ASSERT(range->endContainer()); |
| |
| IntRect startCaretRect = RenderedPosition(VisiblePosition(range->startPosition()).deepEquivalent(), DOWNSTREAM).absoluteRect(&extraWidthToEndOfLine); |
| if (startCaretRect == LayoutRect()) |
| return IntRect(); |
| |
| IntRect endCaretRect = RenderedPosition(VisiblePosition(range->endPosition()).deepEquivalent(), UPSTREAM).absoluteRect(); |
| if (endCaretRect == LayoutRect()) |
| return IntRect(); |
| |
| if (startCaretRect.y() == endCaretRect.y()) { |
| // start and end are on the same line |
| return IntRect(min(startCaretRect.x(), endCaretRect.x()), |
| startCaretRect.y(), |
| abs(endCaretRect.x() - startCaretRect.x()), |
| max(startCaretRect.height(), endCaretRect.height())); |
| } |
| |
| // start and end aren't on the same line, so go from start to the end of its line |
| return IntRect(startCaretRect.x(), |
| startCaretRect.y(), |
| startCaretRect.width() + extraWidthToEndOfLine, |
| startCaretRect.height()); |
| } |
| |
| void Editor::computeAndSetTypingStyle(StylePropertySet* style, EditAction editingAction) |
| { |
| if (!style || style->isEmpty()) { |
| m_frame.selection().clearTypingStyle(); |
| return; |
| } |
| |
| // Calculate the current typing style. |
| RefPtr<EditingStyle> typingStyle; |
| if (m_frame.selection().typingStyle()) { |
| typingStyle = m_frame.selection().typingStyle()->copy(); |
| typingStyle->overrideWithStyle(style); |
| } else { |
| typingStyle = EditingStyle::create(style); |
| } |
| |
| typingStyle->prepareToApplyAt(m_frame.selection().selection().visibleStart().deepEquivalent(), EditingStyle::PreserveWritingDirection); |
| |
| // Handle block styles, substracting these from the typing style. |
| RefPtr<EditingStyle> blockStyle = typingStyle->extractAndRemoveBlockProperties(); |
| if (!blockStyle->isEmpty()) { |
| ASSERT(m_frame.document()); |
| ApplyStyleCommand::create(*m_frame.document(), blockStyle.get(), editingAction)->apply(); |
| } |
| |
| // Set the remaining style as the typing style. |
| m_frame.selection().setTypingStyle(typingStyle); |
| } |
| |
| bool Editor::findString(const String& target, bool forward, bool caseFlag, bool wrapFlag, bool startInSelection) |
| { |
| FindOptions options = (forward ? 0 : Backwards) | (caseFlag ? 0 : CaseInsensitive) | (wrapFlag ? WrapAround : 0) | (startInSelection ? StartInSelection : 0); |
| return findString(target, options); |
| } |
| |
| bool Editor::findString(const String& target, FindOptions options) |
| { |
| VisibleSelection selection = m_frame.selection().selection(); |
| |
| RefPtr<Range> resultRange = rangeOfString(target, selection.firstRange().get(), options); |
| |
| if (!resultRange) |
| return false; |
| |
| m_frame.selection().setSelection(VisibleSelection(resultRange.get(), DOWNSTREAM)); |
| m_frame.selection().revealSelection(); |
| return true; |
| } |
| |
| PassRefPtr<Range> Editor::findStringAndScrollToVisible(const String& target, Range* previousMatch, FindOptions options) |
| { |
| RefPtr<Range> nextMatch = rangeOfString(target, previousMatch, options); |
| if (!nextMatch) |
| return 0; |
| |
| nextMatch->firstNode()->renderer()->scrollRectToVisible(nextMatch->boundingBox(), |
| ScrollAlignment::alignCenterIfNeeded, ScrollAlignment::alignCenterIfNeeded); |
| |
| return nextMatch.release(); |
| } |
| |
| PassRefPtr<Range> Editor::rangeOfString(const String& target, Range* referenceRange, FindOptions options) |
| { |
| if (target.isEmpty()) |
| return 0; |
| |
| // Start from an edge of the reference range, if there's a reference range that's not in shadow content. Which edge |
| // is used depends on whether we're searching forward or backward, and whether startInSelection is set. |
| RefPtr<Range> searchRange(rangeOfContents(m_frame.document())); |
| |
| bool forward = !(options & Backwards); |
| bool startInReferenceRange = referenceRange && (options & StartInSelection); |
| if (referenceRange) { |
| if (forward) |
| searchRange->setStart(startInReferenceRange ? referenceRange->startPosition() : referenceRange->endPosition()); |
| else |
| searchRange->setEnd(startInReferenceRange ? referenceRange->endPosition() : referenceRange->startPosition()); |
| } |
| |
| RefPtr<Node> shadowTreeRoot = referenceRange && referenceRange->startContainer() ? referenceRange->startContainer()->nonBoundaryShadowTreeRootNode() : 0; |
| if (shadowTreeRoot) { |
| if (forward) |
| searchRange->setEnd(shadowTreeRoot.get(), shadowTreeRoot->childNodeCount()); |
| else |
| searchRange->setStart(shadowTreeRoot.get(), 0); |
| } |
| |
| RefPtr<Range> resultRange(findPlainText(searchRange.get(), target, options)); |
| // If we started in the reference range and the found range exactly matches the reference range, find again. |
| // Build a selection with the found range to remove collapsed whitespace. |
| // Compare ranges instead of selection objects to ignore the way that the current selection was made. |
| if (startInReferenceRange && areRangesEqual(VisibleSelection(resultRange.get()).toNormalizedRange().get(), referenceRange)) { |
| searchRange = rangeOfContents(m_frame.document()); |
| if (forward) |
| searchRange->setStart(referenceRange->endPosition()); |
| else |
| searchRange->setEnd(referenceRange->startPosition()); |
| |
| if (shadowTreeRoot) { |
| if (forward) |
| searchRange->setEnd(shadowTreeRoot.get(), shadowTreeRoot->childNodeCount()); |
| else |
| searchRange->setStart(shadowTreeRoot.get(), 0); |
| } |
| |
| resultRange = findPlainText(searchRange.get(), target, options); |
| } |
| |
| // If nothing was found in the shadow tree, search in main content following the shadow tree. |
| if (resultRange->collapsed(ASSERT_NO_EXCEPTION) && shadowTreeRoot) { |
| searchRange = rangeOfContents(m_frame.document()); |
| if (forward) |
| searchRange->setStartAfter(shadowTreeRoot->shadowHost()); |
| else |
| searchRange->setEndBefore(shadowTreeRoot->shadowHost()); |
| |
| resultRange = findPlainText(searchRange.get(), target, options); |
| } |
| |
| // If we didn't find anything and we're wrapping, search again in the entire document (this will |
| // redundantly re-search the area already searched in some cases). |
| if (resultRange->collapsed(ASSERT_NO_EXCEPTION) && options & WrapAround) { |
| searchRange = rangeOfContents(m_frame.document()); |
| resultRange = findPlainText(searchRange.get(), target, options); |
| // We used to return false here if we ended up with the same range that we started with |
| // (e.g., the reference range was already the only instance of this text). But we decided that |
| // this should be a success case instead, so we'll just fall through in that case. |
| } |
| |
| return resultRange->collapsed(ASSERT_NO_EXCEPTION) ? 0 : resultRange.release(); |
| } |
| |
| void Editor::setMarkedTextMatchesAreHighlighted(bool flag) |
| { |
| if (flag == m_areMarkedTextMatchesHighlighted) |
| return; |
| |
| m_areMarkedTextMatchesHighlighted = flag; |
| m_frame.document()->markers()->repaintMarkers(DocumentMarker::TextMatch); |
| } |
| |
| void Editor::respondToChangedSelection(const VisibleSelection& oldSelection, FrameSelection::SetSelectionOptions options) |
| { |
| spellChecker().respondToChangedSelection(oldSelection, options); |
| m_frame.inputMethodController().cancelCompositionIfSelectionIsInvalid(); |
| notifyComponentsOnChangedSelection(oldSelection, options); |
| } |
| |
| SpellChecker& Editor::spellChecker() const |
| { |
| return m_frame.spellChecker(); |
| } |
| |
| void Editor::toggleOverwriteModeEnabled() |
| { |
| m_overwriteModeEnabled = !m_overwriteModeEnabled; |
| frame().selection().setShouldShowBlockCursor(m_overwriteModeEnabled); |
| } |
| |
| } // namespace WebCore |