--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/editing/Editor.cpp Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,2894 @@
+/*
+ * Copyright (C) 2006, 2007, 2008 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 "Editor.h"
+
+#include "AXObjectCache.h"
+#include "ApplyStyleCommand.h"
+#include "CSSComputedStyleDeclaration.h"
+#include "CSSMutableStyleDeclaration.h"
+#include "CSSProperty.h"
+#include "CSSPropertyNames.h"
+#include "CSSValueKeywords.h"
+#include "CharacterNames.h"
+#include "ClipboardEvent.h"
+#include "CompositionEvent.h"
+#include "CreateLinkCommand.h"
+#include "DeleteButtonController.h"
+#include "DeleteSelectionCommand.h"
+#include "DocLoader.h"
+#include "DocumentFragment.h"
+#include "EditorClient.h"
+#include "EventHandler.h"
+#include "EventNames.h"
+#include "FocusController.h"
+#include "Frame.h"
+#include "FrameTree.h"
+#include "FrameView.h"
+#include "HTMLInputElement.h"
+#include "HTMLTextAreaElement.h"
+#include "HitTestResult.h"
+#include "IndentOutdentCommand.h"
+#include "InsertListCommand.h"
+#include "KeyboardEvent.h"
+#include "KillRing.h"
+#include "ModifySelectionListLevel.h"
+#include "Page.h"
+#include "Pasteboard.h"
+#include "RemoveFormatCommand.h"
+#include "RenderBlock.h"
+#include "RenderPart.h"
+#include "ReplaceSelectionCommand.h"
+#include "Settings.h"
+#include "Sound.h"
+#include "Text.h"
+#include "TextIterator.h"
+#include "TypingCommand.h"
+#include "htmlediting.h"
+#include "markup.h"
+#include "visible_units.h"
+#include <wtf/UnusedParam.h>
+
+namespace WebCore {
+
+using namespace std;
+using namespace HTMLNames;
+
+// 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.
+ Node* target = event->target()->toNode();
+ Node* selectionStart = selection.start().node();
+ if (target && (!selectionStart || target->shadowAncestorNode() != selectionStart->shadowAncestorNode())) {
+ if (target->hasTagName(inputTag) && static_cast<HTMLInputElement*>(target)->isTextField())
+ return static_cast<HTMLInputElement*>(target)->selection();
+ if (target->hasTagName(textareaTag))
+ return static_cast<HTMLTextAreaElement*>(target)->selection();
+ }
+ return selection;
+}
+
+// Function considers Mac editing behavior a fallback when Page or Settings is not available.
+EditingBehavior Editor::behavior() const
+{
+ if (!m_frame || !m_frame->settings())
+ return EditingBehavior(EditingMacBehavior);
+
+ return EditingBehavior(m_frame->settings()->editingBehaviorType());
+}
+
+EditorClient* Editor::client() const
+{
+ if (Page* page = m_frame->page())
+ return page->editorClient();
+ return 0;
+}
+
+void Editor::handleKeyboardEvent(KeyboardEvent* event)
+{
+ if (EditorClient* c = client())
+ c->handleKeyboardEvent(event);
+}
+
+void Editor::handleInputMethodKeydown(KeyboardEvent* event)
+{
+ if (EditorClient* c = client())
+ c->handleInputMethodKeydown(event);
+}
+
+bool Editor::canEdit() const
+{
+ return m_frame->selection()->isContentEditable();
+}
+
+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(eventNames().beforecutEvent, ClipboardNumb);
+}
+
+bool Editor::canDHTMLCopy()
+{
+ return !m_frame->selection()->isInPasswordField() && !dispatchCPPEvent(eventNames().beforecopyEvent, ClipboardNumb);
+}
+
+bool Editor::canDHTMLPaste()
+{
+ return !dispatchCPPEvent(eventNames().beforepasteEvent, 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 static_cast<HTMLImageElement*>(node);
+}
+
+bool Editor::canCopy() const
+{
+ if (imageElementFromImageDocument(m_frame->document()))
+ return true;
+ SelectionController* selection = m_frame->selection();
+ return selection->isRange() && !selection->isInPasswordField();
+}
+
+bool Editor::canPaste() const
+{
+ return canEdit();
+}
+
+bool Editor::canDelete() const
+{
+ SelectionController* selection = m_frame->selection();
+ return selection->isRange() && selection->isContentEditable();
+}
+
+bool Editor::canDeleteRange(Range* range) const
+{
+ ExceptionCode ec = 0;
+ Node* startContainer = range->startContainer(ec);
+ Node* endContainer = range->endContainer(ec);
+ if (!startContainer || !endContainer)
+ return false;
+
+ if (!startContainer->isContentEditable() || !endContainer->isContentEditable())
+ return false;
+
+ if (range->collapsed(ec)) {
+ VisiblePosition start(startContainer, range->startOffset(ec), 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().node()->rootEditableElement() != startContainer->rootEditableElement())
+ return false;
+ }
+ return true;
+}
+
+bool Editor::smartInsertDeleteEnabled()
+{
+ return client() && client()->smartInsertDeleteEnabled();
+}
+
+bool Editor::canSmartCopyOrDelete()
+{
+ return client() && client()->smartInsertDeleteEnabled() && m_frame->selectionGranularity() == WordGranularity;
+}
+
+bool Editor::isSelectTrailingWhitespaceEnabled()
+{
+ return client() && client()->isSelectTrailingWhitespaceEnabled();
+}
+
+bool Editor::deleteWithDirection(SelectionController::EDirection direction, TextGranularity granularity, bool killRing, bool isTypingAction)
+{
+ if (!canEdit())
+ return false;
+
+ if (m_frame->selection()->isRange()) {
+ if (isTypingAction) {
+ TypingCommand::deleteKeyPressed(m_frame->document(), canSmartCopyOrDelete(), granularity);
+ revealSelectionAfterEditingOperation();
+ } else {
+ if (killRing)
+ addToKillRing(selectedRange().get(), false);
+ deleteSelectionWithSmartDelete(canSmartCopyOrDelete());
+ // Implicitly calls revealSelectionAfterEditingOperation().
+ }
+ } else {
+ switch (direction) {
+ case SelectionController::DirectionForward:
+ case SelectionController::DirectionRight:
+ TypingCommand::forwardDeleteKeyPressed(m_frame->document(), canSmartCopyOrDelete(), granularity, killRing);
+ break;
+ case SelectionController::DirectionBackward:
+ case SelectionController::DirectionLeft:
+ TypingCommand::deleteKeyPressed(m_frame->document(), canSmartCopyOrDelete(), granularity, killRing);
+ 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;
+
+ applyCommand(DeleteSelectionCommand::create(m_frame->document(), smartDelete));
+}
+
+void Editor::pasteAsPlainTextWithPasteboard(Pasteboard* pasteboard)
+{
+ String text = pasteboard->plainText(m_frame);
+ if (client() && client()->shouldInsertText(text, selectedRange().get(), EditorInsertActionPasted))
+ replaceSelectionWithText(text, false, canSmartReplaceWithPasteboard(pasteboard));
+}
+
+void Editor::pasteWithPasteboard(Pasteboard* pasteboard, bool allowPlainText)
+{
+ RefPtr<Range> range = selectedRange();
+ bool chosePlainText;
+ RefPtr<DocumentFragment> fragment = pasteboard->documentFragment(m_frame, range, allowPlainText, chosePlainText);
+ if (fragment && shouldInsertFragment(fragment, range, EditorInsertActionPasted))
+ replaceSelectionWithFragment(fragment, false, canSmartReplaceWithPasteboard(pasteboard), chosePlainText);
+}
+
+bool Editor::canSmartReplaceWithPasteboard(Pasteboard* pasteboard)
+{
+ return client() && client()->smartInsertDeleteEnabled() && pasteboard->canSmartReplace();
+}
+
+bool Editor::shouldInsertFragment(PassRefPtr<DocumentFragment> fragment, PassRefPtr<Range> replacingDOMRange, EditorInsertAction givenAction)
+{
+ if (!client())
+ return false;
+
+ Node* child = fragment->firstChild();
+ if (child && fragment->lastChild() == child && child->isCharacterDataNode())
+ return client()->shouldInsertText(static_cast<CharacterData*>(child)->data(), replacingDOMRange.get(), givenAction);
+
+ return client()->shouldInsertNode(fragment.get(), replacingDOMRange.get(), givenAction);
+}
+
+void Editor::replaceSelectionWithFragment(PassRefPtr<DocumentFragment> fragment, bool selectReplacement, bool smartReplace, bool matchStyle)
+{
+ if (m_frame->selection()->isNone() || !fragment)
+ return;
+
+ applyCommand(ReplaceSelectionCommand::create(m_frame->document(), fragment, selectReplacement, smartReplace, matchStyle));
+ revealSelectionAfterEditingOperation();
+}
+
+void Editor::replaceSelectionWithText(const String& text, bool selectReplacement, bool smartReplace)
+{
+ replaceSelectionWithFragment(createFragmentFromText(selectedRange().get(), text), selectReplacement, smartReplace, true);
+}
+
+PassRefPtr<Range> Editor::selectedRange()
+{
+ if (!m_frame)
+ return 0;
+ return m_frame->selection()->toNormalizedRange();
+}
+
+bool Editor::shouldDeleteRange(Range* range) const
+{
+ ExceptionCode ec;
+ if (!range || range->collapsed(ec))
+ return false;
+
+ if (!canDeleteRange(range))
+ return false;
+
+ return client() && client()->shouldDeleteRange(range);
+}
+
+bool Editor::tryDHTMLCopy()
+{
+ if (m_frame->selection()->isInPasswordField())
+ return false;
+
+ if (canCopy())
+ // Must be done before oncopy adds types and data to the pboard,
+ // also done for security, as it erases data from the last copy/paste.
+ Pasteboard::generalPasteboard()->clear();
+
+ return !dispatchCPPEvent(eventNames().copyEvent, ClipboardWritable);
+}
+
+bool Editor::tryDHTMLCut()
+{
+ if (m_frame->selection()->isInPasswordField())
+ return false;
+
+ if (canCut())
+ // Must be done before oncut adds types and data to the pboard,
+ // also done for security, as it erases data from the last copy/paste.
+ Pasteboard::generalPasteboard()->clear();
+
+ return !dispatchCPPEvent(eventNames().cutEvent, ClipboardWritable);
+}
+
+bool Editor::tryDHTMLPaste()
+{
+ return !dispatchCPPEvent(eventNames().pasteEvent, ClipboardReadable);
+}
+
+void Editor::writeSelectionToPasteboard(Pasteboard* pasteboard)
+{
+ pasteboard->writeSelection(selectedRange().get(), canSmartCopyOrDelete(), m_frame);
+}
+
+bool Editor::shouldInsertText(const String& text, Range* range, EditorInsertAction action) const
+{
+ return client() && client()->shouldInsertText(text, range, action);
+}
+
+bool Editor::shouldShowDeleteInterface(HTMLElement* element) const
+{
+ return client() && client()->shouldShowDeleteInterface(element);
+}
+
+void Editor::respondToChangedSelection(const VisibleSelection& oldSelection)
+{
+ if (client())
+ client()->respondToChangedSelection();
+ m_deleteButtonController->respondToChangedSelection(oldSelection);
+}
+
+void Editor::respondToChangedContents(const VisibleSelection& endingSelection)
+{
+ if (AXObjectCache::accessibilityEnabled()) {
+ Node* node = endingSelection.start().node();
+ if (node)
+ m_frame->document()->axObjectCache()->postNotification(node->renderer(), AXObjectCache::AXValueChanged, false);
+ }
+
+ if (client())
+ client()->respondToChangedContents();
+}
+
+const SimpleFontData* Editor::fontForSelection(bool& hasMultipleFonts) const
+{
+#if !PLATFORM(QT)
+ hasMultipleFonts = false;
+
+ if (!m_frame->selection()->isRange()) {
+ Node* nodeToRemove;
+ RenderStyle* style = m_frame->styleForSelectionStart(nodeToRemove); // sets nodeToRemove
+
+ const SimpleFontData* result = 0;
+ if (style)
+ result = style->font().primaryFont();
+
+ if (nodeToRemove) {
+ ExceptionCode ec;
+ nodeToRemove->remove(ec);
+ ASSERT(!ec);
+ }
+
+ return result;
+ }
+
+ const SimpleFontData* font = 0;
+
+ RefPtr<Range> range = m_frame->selection()->toNormalizedRange();
+ Node* startNode = range->editingStartPosition().node();
+ if (startNode) {
+ Node* pastEnd = range->pastLastNode();
+ // In the loop below, n should eventually match pastEnd and not become nil, but we've seen at least one
+ // unreproducible case where this didn't happen, so check for nil also.
+ for (Node* n = startNode; n && n != pastEnd; n = n->traverseNextNode()) {
+ RenderObject* renderer = n->renderer();
+ if (!renderer)
+ continue;
+ // FIXME: Are there any node types that have renderers, but that we should be skipping?
+ const SimpleFontData* f = renderer->style()->font().primaryFont();
+ if (!font)
+ font = f;
+ else if (font != f) {
+ hasMultipleFonts = true;
+ break;
+ }
+ }
+ }
+
+ return font;
+#else
+ return 0;
+#endif
+}
+
+WritingDirection Editor::textDirectionForSelection(bool& hasNestedOrMultipleEmbeddings) const
+{
+ hasNestedOrMultipleEmbeddings = true;
+
+ if (m_frame->selection()->isNone())
+ return NaturalWritingDirection;
+
+ Position pos = m_frame->selection()->selection().start().downstream();
+
+ Node* node = pos.node();
+ if (!node)
+ return NaturalWritingDirection;
+
+ Position end;
+ if (m_frame->selection()->isRange()) {
+ end = m_frame->selection()->selection().end().upstream();
+
+ Node* pastLast = Range::create(m_frame->document(), rangeCompliantEquivalent(pos), rangeCompliantEquivalent(end))->pastLastNode();
+ for (Node* n = node; n && n != pastLast; n = n->traverseNextNode()) {
+ if (!n->isStyledElement())
+ continue;
+
+ RefPtr<CSSComputedStyleDeclaration> style = computedStyle(n);
+ RefPtr<CSSValue> unicodeBidi = style->getPropertyCSSValue(CSSPropertyUnicodeBidi);
+ if (!unicodeBidi)
+ continue;
+
+ ASSERT(unicodeBidi->isPrimitiveValue());
+ int unicodeBidiValue = static_cast<CSSPrimitiveValue*>(unicodeBidi.get())->getIdent();
+ if (unicodeBidiValue == CSSValueEmbed || unicodeBidiValue == CSSValueBidiOverride)
+ return NaturalWritingDirection;
+ }
+ }
+
+ if (m_frame->selection()->isCaret()) {
+ if (CSSMutableStyleDeclaration *typingStyle = m_frame->typingStyle()) {
+ RefPtr<CSSValue> unicodeBidi = typingStyle->getPropertyCSSValue(CSSPropertyUnicodeBidi);
+ if (unicodeBidi) {
+ ASSERT(unicodeBidi->isPrimitiveValue());
+ int unicodeBidiValue = static_cast<CSSPrimitiveValue*>(unicodeBidi.get())->getIdent();
+ if (unicodeBidiValue == CSSValueEmbed) {
+ RefPtr<CSSValue> direction = typingStyle->getPropertyCSSValue(CSSPropertyDirection);
+ ASSERT(!direction || direction->isPrimitiveValue());
+ if (direction) {
+ hasNestedOrMultipleEmbeddings = false;
+ return static_cast<CSSPrimitiveValue*>(direction.get())->getIdent() == CSSValueLtr ? LeftToRightWritingDirection : RightToLeftWritingDirection;
+ }
+ } else if (unicodeBidiValue == CSSValueNormal) {
+ hasNestedOrMultipleEmbeddings = false;
+ return NaturalWritingDirection;
+ }
+ }
+ }
+ node = m_frame->selection()->selection().visibleStart().deepEquivalent().node();
+ }
+
+ // The selection is either a caret with no typing attributes or a range in which no embedding is added, so just use the start position
+ // to decide.
+ Node* block = enclosingBlock(node);
+ WritingDirection foundDirection = NaturalWritingDirection;
+
+ for (; node != block; node = node->parent()) {
+ if (!node->isStyledElement())
+ continue;
+
+ RefPtr<CSSComputedStyleDeclaration> style = computedStyle(node);
+ RefPtr<CSSValue> unicodeBidi = style->getPropertyCSSValue(CSSPropertyUnicodeBidi);
+ if (!unicodeBidi)
+ continue;
+
+ ASSERT(unicodeBidi->isPrimitiveValue());
+ int unicodeBidiValue = static_cast<CSSPrimitiveValue*>(unicodeBidi.get())->getIdent();
+ if (unicodeBidiValue == CSSValueNormal)
+ continue;
+
+ if (unicodeBidiValue == CSSValueBidiOverride)
+ return NaturalWritingDirection;
+
+ ASSERT(unicodeBidiValue == CSSValueEmbed);
+ RefPtr<CSSValue> direction = style->getPropertyCSSValue(CSSPropertyDirection);
+ if (!direction)
+ continue;
+
+ ASSERT(direction->isPrimitiveValue());
+ int directionValue = static_cast<CSSPrimitiveValue*>(direction.get())->getIdent();
+ if (directionValue != CSSValueLtr && directionValue != CSSValueRtl)
+ continue;
+
+ if (foundDirection != NaturalWritingDirection)
+ return NaturalWritingDirection;
+
+ // In the range case, make sure that the embedding element persists until the end of the range.
+ if (m_frame->selection()->isRange() && !end.node()->isDescendantOf(node))
+ return NaturalWritingDirection;
+
+ foundDirection = directionValue == CSSValueLtr ? LeftToRightWritingDirection : RightToLeftWritingDirection;
+ }
+ hasNestedOrMultipleEmbeddings = false;
+ return foundDirection;
+}
+
+bool Editor::hasBidiSelection() const
+{
+ if (m_frame->selection()->isNone())
+ return false;
+
+ Node* startNode;
+ if (m_frame->selection()->isRange()) {
+ startNode = m_frame->selection()->selection().start().downstream().node();
+ Node* endNode = m_frame->selection()->selection().end().upstream().node();
+ if (enclosingBlock(startNode) != enclosingBlock(endNode))
+ return false;
+ } else
+ startNode = m_frame->selection()->selection().visibleStart().deepEquivalent().node();
+
+ RenderObject* renderer = startNode->renderer();
+ while (renderer && !renderer->isRenderBlock())
+ renderer = renderer->parent();
+
+ if (!renderer)
+ return false;
+
+ RenderStyle* style = renderer->style();
+ if (style->direction() == RTL)
+ return true;
+
+ return toRenderBlock(renderer)->containsNonZeroBidiLevel();
+}
+
+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;
+
+ RefPtr<Node> newList = InsertListCommand::insertList(m_frame->document(), InsertListCommand::OrderedList);
+ revealSelectionAfterEditingOperation();
+ return newList;
+}
+
+PassRefPtr<Node> Editor::insertUnorderedList()
+{
+ if (!canEditRichly())
+ return 0;
+
+ RefPtr<Node> newList = InsertListCommand::insertList(m_frame->document(), InsertListCommand::UnorderedList);
+ revealSelectionAfterEditingOperation();
+ return newList;
+}
+
+bool Editor::canIncreaseSelectionListLevel()
+{
+ return canEditRichly() && IncreaseSelectionListLevelCommand::canIncreaseSelectionListLevel(m_frame->document());
+}
+
+bool Editor::canDecreaseSelectionListLevel()
+{
+ return canEditRichly() && DecreaseSelectionListLevelCommand::canDecreaseSelectionListLevel(m_frame->document());
+}
+
+PassRefPtr<Node> Editor::increaseSelectionListLevel()
+{
+ if (!canEditRichly() || m_frame->selection()->isNone())
+ return 0;
+
+ RefPtr<Node> newList = IncreaseSelectionListLevelCommand::increaseSelectionListLevel(m_frame->document());
+ revealSelectionAfterEditingOperation();
+ return newList;
+}
+
+PassRefPtr<Node> Editor::increaseSelectionListLevelOrdered()
+{
+ if (!canEditRichly() || m_frame->selection()->isNone())
+ return 0;
+
+ RefPtr<Node> newList = IncreaseSelectionListLevelCommand::increaseSelectionListLevelOrdered(m_frame->document());
+ revealSelectionAfterEditingOperation();
+ return newList.release();
+}
+
+PassRefPtr<Node> Editor::increaseSelectionListLevelUnordered()
+{
+ if (!canEditRichly() || m_frame->selection()->isNone())
+ return 0;
+
+ RefPtr<Node> newList = IncreaseSelectionListLevelCommand::increaseSelectionListLevelUnordered(m_frame->document());
+ revealSelectionAfterEditingOperation();
+ return newList.release();
+}
+
+void Editor::decreaseSelectionListLevel()
+{
+ if (!canEditRichly() || m_frame->selection()->isNone())
+ return;
+
+ DecreaseSelectionListLevelCommand::decreaseSelectionListLevel(m_frame->document());
+ revealSelectionAfterEditingOperation();
+}
+
+void Editor::removeFormattingAndStyle()
+{
+ applyCommand(RemoveFormatCommand::create(m_frame->document()));
+}
+
+void Editor::clearLastEditCommand()
+{
+ m_lastEditCommand.clear();
+}
+
+// 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)
+{
+ Node* target = m_frame->selection()->start().element();
+ if (!target)
+ target = m_frame->document()->body();
+ if (!target)
+ return true;
+ target = target->shadowAncestorNode();
+
+ RefPtr<Clipboard> clipboard = newGeneralClipboard(policy);
+
+ ExceptionCode ec = 0;
+ RefPtr<Event> evt = ClipboardEvent::create(eventType, true, true, clipboard);
+ target->dispatchEvent(evt, ec);
+ bool noDefaultProcessing = evt->defaultPrevented();
+
+ // invalidate clipboard here for security
+ clipboard->setAccessPolicy(ClipboardNumb);
+
+ return !noDefaultProcessing;
+}
+
+void Editor::applyStyle(CSSStyleDeclaration* style, EditAction editingAction)
+{
+ switch (m_frame->selection()->selectionType()) {
+ case VisibleSelection::NoSelection:
+ // do nothing
+ break;
+ case VisibleSelection::CaretSelection:
+ m_frame->computeAndSetTypingStyle(style, editingAction);
+ break;
+ case VisibleSelection::RangeSelection:
+ if (style)
+ applyCommand(ApplyStyleCommand::create(m_frame->document(), style, editingAction));
+ break;
+ }
+}
+
+bool Editor::shouldApplyStyle(CSSStyleDeclaration* style, Range* range)
+{
+ return client()->shouldApplyStyle(style, range);
+}
+
+void Editor::applyParagraphStyle(CSSStyleDeclaration* style, EditAction editingAction)
+{
+ switch (m_frame->selection()->selectionType()) {
+ case VisibleSelection::NoSelection:
+ // do nothing
+ break;
+ case VisibleSelection::CaretSelection:
+ case VisibleSelection::RangeSelection:
+ if (style)
+ applyCommand(ApplyStyleCommand::create(m_frame->document(), style, editingAction, ApplyStyleCommand::ForceBlockProperties));
+ break;
+ }
+}
+
+void Editor::applyStyleToSelection(CSSStyleDeclaration* style, EditAction editingAction)
+{
+ if (!style || !style->length() || !canEditRichly())
+ return;
+
+ if (client() && client()->shouldApplyStyle(style, m_frame->selection()->toNormalizedRange().get()))
+ applyStyle(style, editingAction);
+}
+
+void Editor::applyParagraphStyleToSelection(CSSStyleDeclaration* style, EditAction editingAction)
+{
+ if (!style || !style->length() || !canEditRichly())
+ return;
+
+ if (client() && client()->shouldApplyStyle(style, m_frame->selection()->toNormalizedRange().get()))
+ applyParagraphStyle(style, editingAction);
+}
+
+bool Editor::clientIsEditable() const
+{
+ return client() && client()->isEditable();
+}
+
+// CSS properties that only has a visual difference when applied to text.
+static const int textOnlyProperties[] = {
+ CSSPropertyTextDecoration,
+ CSSPropertyWebkitTextDecorationsInEffect,
+ CSSPropertyFontStyle,
+ CSSPropertyFontWeight,
+ CSSPropertyColor,
+};
+
+static TriState triStateOfStyleInComputedStyle(CSSStyleDeclaration* desiredStyle, CSSComputedStyleDeclaration* computedStyle, bool ignoreTextOnlyProperties = false)
+{
+ RefPtr<CSSMutableStyleDeclaration> diff = getPropertiesNotInComputedStyle(desiredStyle, computedStyle);
+
+ if (ignoreTextOnlyProperties)
+ diff->removePropertiesInSet(textOnlyProperties, sizeof(textOnlyProperties) / sizeof(textOnlyProperties[0]));
+
+ if (!diff->length())
+ return TrueTriState;
+ if (diff->length() == desiredStyle->length())
+ return FalseTriState;
+ return MixedTriState;
+}
+
+bool Editor::selectionStartHasStyle(CSSStyleDeclaration* style) const
+{
+ Node* nodeToRemove;
+ RefPtr<CSSComputedStyleDeclaration> selectionStyle = m_frame->selectionComputedStyle(nodeToRemove);
+ if (!selectionStyle)
+ return false;
+ TriState state = triStateOfStyleInComputedStyle(style, selectionStyle.get());
+ if (nodeToRemove) {
+ ExceptionCode ec = 0;
+ nodeToRemove->remove(ec);
+ ASSERT(!ec);
+ }
+ return state == TrueTriState;
+}
+
+TriState Editor::selectionHasStyle(CSSStyleDeclaration* style) const
+{
+ TriState state = FalseTriState;
+
+ if (!m_frame->selection()->isRange()) {
+ Node* nodeToRemove;
+ RefPtr<CSSComputedStyleDeclaration> selectionStyle = m_frame->selectionComputedStyle(nodeToRemove);
+ if (!selectionStyle)
+ return FalseTriState;
+ state = triStateOfStyleInComputedStyle(style, selectionStyle.get());
+ if (nodeToRemove) {
+ ExceptionCode ec = 0;
+ nodeToRemove->remove(ec);
+ ASSERT(!ec);
+ }
+ } else {
+ for (Node* node = m_frame->selection()->start().node(); node; node = node->traverseNextNode()) {
+ RefPtr<CSSComputedStyleDeclaration> nodeStyle = computedStyle(node);
+ if (nodeStyle) {
+ TriState nodeState = triStateOfStyleInComputedStyle(style, nodeStyle.get(), !node->isTextNode());
+ if (node == m_frame->selection()->start().node())
+ state = nodeState;
+ else if (state != nodeState && node->isTextNode()) {
+ state = MixedTriState;
+ break;
+ }
+ }
+ if (node == m_frame->selection()->end().node())
+ break;
+ }
+ }
+
+ return state;
+}
+void Editor::indent()
+{
+ applyCommand(IndentOutdentCommand::create(m_frame->document(), IndentOutdentCommand::Indent));
+}
+
+void Editor::outdent()
+{
+ applyCommand(IndentOutdentCommand::create(m_frame->document(), IndentOutdentCommand::Outdent));
+}
+
+static void dispatchEditableContentChangedEvents(const EditCommand& command)
+{
+ Element* startRoot = command.startingRootEditableElement();
+ Element* endRoot = command.endingRootEditableElement();
+ ExceptionCode ec;
+ if (startRoot)
+ startRoot->dispatchEvent(Event::create(eventNames().webkitEditableContentChangedEvent, false, false), ec);
+ if (endRoot && endRoot != startRoot)
+ endRoot->dispatchEvent(Event::create(eventNames().webkitEditableContentChangedEvent, false, false), ec);
+}
+
+void Editor::appliedEditing(PassRefPtr<EditCommand> cmd)
+{
+ m_frame->document()->updateLayout();
+
+ dispatchEditableContentChangedEvents(*cmd);
+
+ VisibleSelection newSelection(cmd->endingSelection());
+ // Don't clear the typing style with this selection change. We do those things elsewhere if necessary.
+ changeSelectionAfterCommand(newSelection, false, false);
+
+ if (!cmd->preservesTypingStyle())
+ m_frame->setTypingStyle(0);
+
+ // 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 (client())
+ client()->registerCommandForUndo(m_lastEditCommand);
+ }
+ respondToChangedContents(newSelection);
+}
+
+void Editor::unappliedEditing(PassRefPtr<EditCommand> cmd)
+{
+ m_frame->document()->updateLayout();
+
+ dispatchEditableContentChangedEvents(*cmd);
+
+ VisibleSelection newSelection(cmd->startingSelection());
+ changeSelectionAfterCommand(newSelection, true, true);
+
+ m_lastEditCommand = 0;
+ if (client())
+ client()->registerCommandForRedo(cmd);
+ respondToChangedContents(newSelection);
+}
+
+void Editor::reappliedEditing(PassRefPtr<EditCommand> cmd)
+{
+ m_frame->document()->updateLayout();
+
+ dispatchEditableContentChangedEvents(*cmd);
+
+ VisibleSelection newSelection(cmd->endingSelection());
+ changeSelectionAfterCommand(newSelection, true, true);
+
+ m_lastEditCommand = 0;
+ if (client())
+ client()->registerCommandForUndo(cmd);
+ respondToChangedContents(newSelection);
+}
+
+Editor::Editor(Frame* frame)
+ : m_frame(frame)
+ , m_deleteButtonController(new DeleteButtonController(frame))
+ , m_ignoreCompositionSelectionChange(false)
+ , 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(new KillRing)
+{
+}
+
+Editor::~Editor()
+{
+}
+
+void Editor::clear()
+{
+ m_compositionNode = 0;
+ m_customCompositionUnderlines.clear();
+ m_shouldStyleWithCSS = false;
+}
+
+bool Editor::insertText(const String& text, Event* triggeringEvent)
+{
+ return m_frame->eventHandler()->handleTextInputEvent(text, triggeringEvent);
+}
+
+bool Editor::insertTextWithoutSendingTextEvent(const String& text, bool selectInsertedText, Event* triggeringEvent)
+{
+ if (text.isEmpty())
+ return false;
+
+ VisibleSelection selection = selectionForCommand(triggeringEvent);
+ if (!selection.isContentEditable())
+ return false;
+ RefPtr<Range> range = selection.toNormalizedRange();
+
+ if (!shouldInsertText(text, range.get(), EditorInsertActionTyped))
+ return true;
+
+ // 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().node()) {
+ RefPtr<Document> document = selectionStart->document();
+
+ // Insert the text
+ TypingCommand::insertText(document.get(), text, selection, selectInsertedText);
+
+ // Reveal the current selection
+ if (Frame* editedFrame = document->frame())
+ if (Page* page = editedFrame->page())
+ page->focusController()->focusedOrMainFrame()->revealSelection(ScrollAlignment::alignToEdgeIfNeeded);
+ }
+ }
+
+ return true;
+}
+
+bool Editor::insertLineBreak()
+{
+ if (!canEdit())
+ return false;
+
+ if (!shouldInsertText("\n", m_frame->selection()->toNormalizedRange().get(), EditorInsertActionTyped))
+ return true;
+
+ TypingCommand::insertLineBreak(m_frame->document());
+ revealSelectionAfterEditingOperation();
+ return true;
+}
+
+bool Editor::insertParagraphSeparator()
+{
+ if (!canEdit())
+ return false;
+
+ if (!canEditRichly())
+ return insertLineBreak();
+
+ if (!shouldInsertText("\n", m_frame->selection()->toNormalizedRange().get(), EditorInsertActionTyped))
+ return true;
+
+ TypingCommand::insertParagraphSeparator(m_frame->document());
+ revealSelectionAfterEditingOperation();
+ return true;
+}
+
+void Editor::cut()
+{
+ if (tryDHTMLCut())
+ return; // DHTML did the whole operation
+ if (!canCut()) {
+ systemBeep();
+ return;
+ }
+ RefPtr<Range> selection = selectedRange();
+ if (shouldDeleteRange(selection.get())) {
+ if (isNodeInTextFormControl(m_frame->selection()->start().node()))
+ Pasteboard::generalPasteboard()->writePlainText(m_frame->selectedText());
+ else
+ Pasteboard::generalPasteboard()->writeSelection(selection.get(), canSmartCopyOrDelete(), m_frame);
+ didWriteSelectionToPasteboard();
+ deleteSelectionWithSmartDelete(canSmartCopyOrDelete());
+ }
+}
+
+void Editor::copy()
+{
+ if (tryDHTMLCopy())
+ return; // DHTML did the whole operation
+ if (!canCopy()) {
+ systemBeep();
+ return;
+ }
+
+ if (isNodeInTextFormControl(m_frame->selection()->start().node()))
+ Pasteboard::generalPasteboard()->writePlainText(m_frame->selectedText());
+ else {
+ Document* document = m_frame->document();
+ if (HTMLImageElement* imageElement = imageElementFromImageDocument(document))
+ Pasteboard::generalPasteboard()->writeImage(imageElement, document->url(), document->title());
+ else
+ Pasteboard::generalPasteboard()->writeSelection(selectedRange().get(), canSmartCopyOrDelete(), m_frame);
+ }
+
+ didWriteSelectionToPasteboard();
+}
+
+#if !PLATFORM(MAC)
+
+void Editor::paste()
+{
+ ASSERT(m_frame->document());
+ if (tryDHTMLPaste())
+ return; // DHTML did the whole operation
+ if (!canPaste())
+ return;
+ DocLoader* loader = m_frame->document()->docLoader();
+ loader->setAllowStaleResources(true);
+ if (m_frame->selection()->isContentRichlyEditable())
+ pasteWithPasteboard(Pasteboard::generalPasteboard(), true);
+ else
+ pasteAsPlainTextWithPasteboard(Pasteboard::generalPasteboard());
+ loader->setAllowStaleResources(false);
+}
+
+#endif
+
+void Editor::pasteAsPlainText()
+{
+ if (tryDHTMLPaste())
+ return;
+ if (!canPaste())
+ return;
+ pasteAsPlainTextWithPasteboard(Pasteboard::generalPasteboard());
+}
+
+void Editor::performDelete()
+{
+ if (!canDelete()) {
+ systemBeep();
+ 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::copyURL(const KURL& url, const String& title)
+{
+ Pasteboard::generalPasteboard()->writeURL(url, title, m_frame);
+}
+
+void Editor::copyImage(const HitTestResult& result)
+{
+ KURL url = result.absoluteLinkURL();
+ if (url.isEmpty())
+ url = result.absoluteImageURL();
+
+ Pasteboard::generalPasteboard()->writeImage(result.innerNonSharedNode(), url, result.altDisplayString());
+}
+
+bool Editor::isContinuousSpellCheckingEnabled()
+{
+ return client() && client()->isContinuousSpellCheckingEnabled();
+}
+
+void Editor::toggleContinuousSpellChecking()
+{
+ if (client())
+ client()->toggleContinuousSpellChecking();
+}
+
+bool Editor::isGrammarCheckingEnabled()
+{
+ return client() && client()->isGrammarCheckingEnabled();
+}
+
+void Editor::toggleGrammarChecking()
+{
+ if (client())
+ client()->toggleGrammarChecking();
+}
+
+int Editor::spellCheckerDocumentTag()
+{
+ return client() ? client()->spellCheckerDocumentTag() : 0;
+}
+
+#if PLATFORM(MAC) && !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
+
+void Editor::uppercaseWord()
+{
+ if (client())
+ client()->uppercaseWord();
+}
+
+void Editor::lowercaseWord()
+{
+ if (client())
+ client()->lowercaseWord();
+}
+
+void Editor::capitalizeWord()
+{
+ if (client())
+ client()->capitalizeWord();
+}
+
+void Editor::showSubstitutionsPanel()
+{
+ if (!client()) {
+ LOG_ERROR("No NSSpellChecker");
+ return;
+ }
+
+ if (client()->substitutionsPanelIsShowing()) {
+ client()->showSubstitutionsPanel(false);
+ return;
+ }
+ client()->showSubstitutionsPanel(true);
+}
+
+bool Editor::substitutionsPanelIsShowing()
+{
+ if (!client())
+ return false;
+ return client()->substitutionsPanelIsShowing();
+}
+
+void Editor::toggleSmartInsertDelete()
+{
+ if (client())
+ client()->toggleSmartInsertDelete();
+}
+
+bool Editor::isAutomaticQuoteSubstitutionEnabled()
+{
+ return client() && client()->isAutomaticQuoteSubstitutionEnabled();
+}
+
+void Editor::toggleAutomaticQuoteSubstitution()
+{
+ if (client())
+ client()->toggleAutomaticQuoteSubstitution();
+}
+
+bool Editor::isAutomaticLinkDetectionEnabled()
+{
+ return client() && client()->isAutomaticLinkDetectionEnabled();
+}
+
+void Editor::toggleAutomaticLinkDetection()
+{
+ if (client())
+ client()->toggleAutomaticLinkDetection();
+}
+
+bool Editor::isAutomaticDashSubstitutionEnabled()
+{
+ return client() && client()->isAutomaticDashSubstitutionEnabled();
+}
+
+void Editor::toggleAutomaticDashSubstitution()
+{
+ if (client())
+ client()->toggleAutomaticDashSubstitution();
+}
+
+bool Editor::isAutomaticTextReplacementEnabled()
+{
+ return client() && client()->isAutomaticTextReplacementEnabled();
+}
+
+void Editor::toggleAutomaticTextReplacement()
+{
+ if (client())
+ client()->toggleAutomaticTextReplacement();
+}
+
+bool Editor::isAutomaticSpellingCorrectionEnabled()
+{
+ return client() && client()->isAutomaticSpellingCorrectionEnabled();
+}
+
+void Editor::toggleAutomaticSpellingCorrection()
+{
+ if (client())
+ client()->toggleAutomaticSpellingCorrection();
+}
+
+#endif
+
+bool Editor::shouldEndEditing(Range* range)
+{
+ return client() && client()->shouldEndEditing(range);
+}
+
+bool Editor::shouldBeginEditing(Range* range)
+{
+ return client() && client()->shouldBeginEditing(range);
+}
+
+void Editor::clearUndoRedoOperations()
+{
+ if (client())
+ client()->clearUndoRedoOperations();
+}
+
+bool Editor::canUndo()
+{
+ return client() && client()->canUndo();
+}
+
+void Editor::undo()
+{
+ if (client())
+ client()->undo();
+}
+
+bool Editor::canRedo()
+{
+ return client() && client()->canRedo();
+}
+
+void Editor::redo()
+{
+ if (client())
+ client()->redo();
+}
+
+void Editor::didBeginEditing()
+{
+ if (client())
+ client()->didBeginEditing();
+}
+
+void Editor::didEndEditing()
+{
+ if (client())
+ client()->didEndEditing();
+}
+
+void Editor::didWriteSelectionToPasteboard()
+{
+ if (client())
+ client()->didWriteSelectionToPasteboard();
+}
+
+void Editor::toggleBold()
+{
+ command("ToggleBold").execute();
+}
+
+void Editor::toggleUnderline()
+{
+ command("ToggleUnderline").execute();
+}
+
+void Editor::setBaseWritingDirection(WritingDirection direction)
+{
+ Node* focusedNode = frame()->document()->focusedNode();
+ if (focusedNode && (focusedNode->hasTagName(textareaTag)
+ || (focusedNode->hasTagName(inputTag) && (static_cast<HTMLInputElement*>(focusedNode)->inputType() == HTMLInputElement::TEXT
+ || static_cast<HTMLInputElement*>(focusedNode)->inputType() == HTMLInputElement::SEARCH)))) {
+ if (direction == NaturalWritingDirection)
+ return;
+ static_cast<HTMLElement*>(focusedNode)->setAttribute(dirAttr, direction == LeftToRightWritingDirection ? "ltr" : "rtl");
+ frame()->document()->updateStyleIfNeeded();
+ return;
+ }
+
+ RefPtr<CSSMutableStyleDeclaration> style = CSSMutableStyleDeclaration::create();
+ style->setProperty(CSSPropertyDirection, direction == LeftToRightWritingDirection ? "ltr" : direction == RightToLeftWritingDirection ? "rtl" : "inherit", false);
+ applyParagraphStyleToSelection(style.get(), EditActionSetWritingDirection);
+}
+
+void Editor::selectComposition()
+{
+ RefPtr<Range> range = compositionRange();
+ if (!range)
+ return;
+
+ // The composition can start inside a composed character sequence, so we have to override checks.
+ // See <http://bugs.webkit.org/show_bug.cgi?id=15781>
+ VisibleSelection selection;
+ selection.setWithoutValidation(range->startPosition(), range->endPosition());
+ m_frame->selection()->setSelection(selection, false, false);
+}
+
+void Editor::confirmComposition()
+{
+ if (!m_compositionNode)
+ return;
+ confirmComposition(m_compositionNode->data().substring(m_compositionStart, m_compositionEnd - m_compositionStart), false);
+}
+
+void Editor::confirmCompositionWithoutDisturbingSelection()
+{
+ if (!m_compositionNode)
+ return;
+ confirmComposition(m_compositionNode->data().substring(m_compositionStart, m_compositionEnd - m_compositionStart), true);
+}
+
+void Editor::confirmComposition(const String& text)
+{
+ confirmComposition(text, false);
+}
+
+void Editor::confirmComposition(const String& text, bool preserveSelection)
+{
+ setIgnoreCompositionSelectionChange(true);
+
+ VisibleSelection oldSelection = m_frame->selection()->selection();
+
+ selectComposition();
+
+ if (m_frame->selection()->isNone()) {
+ setIgnoreCompositionSelectionChange(false);
+ return;
+ }
+
+ // Dispatch a compositionend event to the focused node.
+ // We should send this event before sending a TextEvent as written in Section 6.2.2 and 6.2.3 of
+ // the DOM Event specification.
+ Node* target = m_frame->document()->focusedNode();
+ if (target) {
+ RefPtr<CompositionEvent> event = CompositionEvent::create(eventNames().compositionendEvent, m_frame->domWindow(), text);
+ ExceptionCode ec = 0;
+ target->dispatchEvent(event, ec);
+ }
+
+ // If text is empty, then delete the old composition here. If text is non-empty, InsertTextCommand::input
+ // will delete the old composition with an optimized replace operation.
+ if (text.isEmpty())
+ TypingCommand::deleteSelection(m_frame->document(), false);
+
+ m_compositionNode = 0;
+ m_customCompositionUnderlines.clear();
+
+ insertText(text, 0);
+
+ if (preserveSelection) {
+ m_frame->selection()->setSelection(oldSelection, false, false);
+ // An open typing command that disagrees about current selection would cause issues with typing later on.
+ TypingCommand::closeTyping(m_lastEditCommand.get());
+ }
+
+ setIgnoreCompositionSelectionChange(false);
+}
+
+void Editor::setComposition(const String& text, const Vector<CompositionUnderline>& underlines, unsigned selectionStart, unsigned selectionEnd)
+{
+ setIgnoreCompositionSelectionChange(true);
+
+ selectComposition();
+
+ if (m_frame->selection()->isNone()) {
+ setIgnoreCompositionSelectionChange(false);
+ return;
+ }
+
+ Node* target = m_frame->document()->focusedNode();
+ if (target) {
+ // Dispatch an appropriate composition event to the focused node.
+ // We check the composition status and choose an appropriate composition event since this
+ // function is used for three purposes:
+ // 1. Starting a new composition.
+ // Send a compositionstart event when this function creates a new composition node, i.e.
+ // m_compositionNode == 0 && !text.isEmpty().
+ // 2. Updating the existing composition node.
+ // Send a compositionupdate event when this function updates the existing composition
+ // node, i.e. m_compositionNode != 0 && !text.isEmpty().
+ // 3. Canceling the ongoing composition.
+ // Send a compositionend event when function deletes the existing composition node, i.e.
+ // m_compositionNode != 0 && test.isEmpty().
+ RefPtr<CompositionEvent> event;
+ if (!m_compositionNode) {
+ // We should send a compositionstart event only when the given text is not empty because this
+ // function doesn't create a composition node when the text is empty.
+ if (!text.isEmpty())
+ event = CompositionEvent::create(eventNames().compositionstartEvent, m_frame->domWindow(), text);
+ } else {
+ if (!text.isEmpty())
+ event = CompositionEvent::create(eventNames().compositionupdateEvent, m_frame->domWindow(), text);
+ else
+ event = CompositionEvent::create(eventNames().compositionendEvent, m_frame->domWindow(), text);
+ }
+ ExceptionCode ec = 0;
+ if (event.get())
+ target->dispatchEvent(event, ec);
+ }
+
+ // If text is empty, then delete the old composition here. If text is non-empty, InsertTextCommand::input
+ // will delete the old composition with an optimized replace operation.
+ if (text.isEmpty())
+ TypingCommand::deleteSelection(m_frame->document(), false);
+
+ m_compositionNode = 0;
+ m_customCompositionUnderlines.clear();
+
+ if (!text.isEmpty()) {
+ TypingCommand::insertText(m_frame->document(), text, true, true);
+
+ Node* baseNode = m_frame->selection()->base().node();
+ unsigned baseOffset = m_frame->selection()->base().deprecatedEditingOffset();
+ Node* extentNode = m_frame->selection()->extent().node();
+ unsigned extentOffset = m_frame->selection()->extent().deprecatedEditingOffset();
+
+ if (baseNode && baseNode == extentNode && baseNode->isTextNode() && baseOffset + text.length() == extentOffset) {
+ m_compositionNode = static_cast<Text*>(baseNode);
+ m_compositionStart = baseOffset;
+ m_compositionEnd = extentOffset;
+ m_customCompositionUnderlines = underlines;
+ size_t numUnderlines = m_customCompositionUnderlines.size();
+ for (size_t i = 0; i < numUnderlines; ++i) {
+ m_customCompositionUnderlines[i].startOffset += baseOffset;
+ m_customCompositionUnderlines[i].endOffset += baseOffset;
+ }
+ if (baseNode->renderer())
+ baseNode->renderer()->repaint();
+
+ unsigned start = min(baseOffset + selectionStart, extentOffset);
+ unsigned end = min(max(start, baseOffset + selectionEnd), extentOffset);
+ RefPtr<Range> selectedRange = Range::create(baseNode->document(), baseNode, start, baseNode, end);
+ m_frame->selection()->setSelectedRange(selectedRange.get(), DOWNSTREAM, false);
+ }
+ }
+
+ setIgnoreCompositionSelectionChange(false);
+}
+
+void Editor::ignoreSpelling()
+{
+ if (!client())
+ return;
+
+ RefPtr<Range> selectedRange = frame()->selection()->toNormalizedRange();
+ if (selectedRange)
+ frame()->document()->removeMarkers(selectedRange.get(), DocumentMarker::Spelling);
+
+ String text = frame()->selectedText();
+ ASSERT(text.length());
+ client()->ignoreWordInSpellDocument(text);
+}
+
+void Editor::learnSpelling()
+{
+ if (!client())
+ return;
+
+ // FIXME: We don't call this on the Mac, and it should remove misspelling markers around the
+ // learned word, see <rdar://problem/5396072>.
+
+ String text = frame()->selectedText();
+ ASSERT(text.length());
+ client()->learnWord(text);
+}
+
+static String findFirstMisspellingInRange(EditorClient* client, Range* searchRange, int& firstMisspellingOffset, bool markAll, RefPtr<Range>& firstMisspellingRange)
+{
+ ASSERT_ARG(client, client);
+ ASSERT_ARG(searchRange, searchRange);
+
+ WordAwareIterator it(searchRange);
+ firstMisspellingOffset = 0;
+
+ String firstMisspelling;
+ int currentChunkOffset = 0;
+
+ while (!it.atEnd()) {
+ const UChar* chars = it.characters();
+ int len = it.length();
+
+ // Skip some work for one-space-char hunks
+ if (!(len == 1 && chars[0] == ' ')) {
+
+ int misspellingLocation = -1;
+ int misspellingLength = 0;
+ client->checkSpellingOfString(chars, len, &misspellingLocation, &misspellingLength);
+
+ // 5490627 shows that there was some code path here where the String constructor below crashes.
+ // We don't know exactly what combination of bad input caused this, so we're making this much
+ // more robust against bad input on release builds.
+ ASSERT(misspellingLength >= 0);
+ ASSERT(misspellingLocation >= -1);
+ ASSERT(!misspellingLength || misspellingLocation >= 0);
+ ASSERT(misspellingLocation < len);
+ ASSERT(misspellingLength <= len);
+ ASSERT(misspellingLocation + misspellingLength <= len);
+
+ if (misspellingLocation >= 0 && misspellingLength > 0 && misspellingLocation < len && misspellingLength <= len && misspellingLocation + misspellingLength <= len) {
+
+ // Compute range of misspelled word
+ RefPtr<Range> misspellingRange = TextIterator::subrange(searchRange, currentChunkOffset + misspellingLocation, misspellingLength);
+
+ // Remember first-encountered misspelling and its offset.
+ if (!firstMisspelling) {
+ firstMisspellingOffset = currentChunkOffset + misspellingLocation;
+ firstMisspelling = String(chars + misspellingLocation, misspellingLength);
+ firstMisspellingRange = misspellingRange;
+ }
+
+ // Store marker for misspelled word.
+ ExceptionCode ec = 0;
+ misspellingRange->startContainer(ec)->document()->addMarker(misspellingRange.get(), DocumentMarker::Spelling);
+ ASSERT(!ec);
+
+ // Bail out if we're marking only the first misspelling, and not all instances.
+ if (!markAll)
+ break;
+ }
+ }
+
+ currentChunkOffset += len;
+ it.advance();
+ }
+
+ return firstMisspelling;
+}
+
+#ifndef BUILDING_ON_TIGER
+
+static PassRefPtr<Range> paragraphAlignedRangeForRange(Range* arbitraryRange, int& offsetIntoParagraphAlignedRange, String& paragraphString)
+{
+ ASSERT_ARG(arbitraryRange, arbitraryRange);
+
+ ExceptionCode ec = 0;
+
+ // Expand range to paragraph boundaries
+ RefPtr<Range> paragraphRange = arbitraryRange->cloneRange(ec);
+ setStart(paragraphRange.get(), startOfParagraph(arbitraryRange->startPosition()));
+ setEnd(paragraphRange.get(), endOfParagraph(arbitraryRange->endPosition()));
+
+ // Compute offset from start of expanded range to start of original range
+ RefPtr<Range> offsetAsRange = Range::create(paragraphRange->startContainer(ec)->document(), paragraphRange->startPosition(), arbitraryRange->startPosition());
+ offsetIntoParagraphAlignedRange = TextIterator::rangeLength(offsetAsRange.get());
+
+ // Fill in out parameter with string representing entire paragraph range.
+ // Someday we might have a caller that doesn't use this, but for now all callers do.
+ paragraphString = plainText(paragraphRange.get());
+
+ return paragraphRange;
+}
+
+static int findFirstGrammarDetailInRange(const Vector<GrammarDetail>& grammarDetails, int badGrammarPhraseLocation, int /*badGrammarPhraseLength*/, Range *searchRange, int startOffset, int endOffset, bool markAll)
+{
+ // Found some bad grammar. Find the earliest detail range that starts in our search range (if any).
+ // Optionally add a DocumentMarker for each detail in the range.
+ int earliestDetailLocationSoFar = -1;
+ int earliestDetailIndex = -1;
+ for (unsigned i = 0; i < grammarDetails.size(); i++) {
+ const GrammarDetail* detail = &grammarDetails[i];
+ ASSERT(detail->length > 0 && detail->location >= 0);
+
+ int detailStartOffsetInParagraph = badGrammarPhraseLocation + detail->location;
+
+ // Skip this detail if it starts before the original search range
+ if (detailStartOffsetInParagraph < startOffset)
+ continue;
+
+ // Skip this detail if it starts after the original search range
+ if (detailStartOffsetInParagraph >= endOffset)
+ continue;
+
+ if (markAll) {
+ RefPtr<Range> badGrammarRange = TextIterator::subrange(searchRange, badGrammarPhraseLocation - startOffset + detail->location, detail->length);
+ ExceptionCode ec = 0;
+ badGrammarRange->startContainer(ec)->document()->addMarker(badGrammarRange.get(), DocumentMarker::Grammar, detail->userDescription);
+ ASSERT(!ec);
+ }
+
+ // Remember this detail only if it's earlier than our current candidate (the details aren't in a guaranteed order)
+ if (earliestDetailIndex < 0 || earliestDetailLocationSoFar > detail->location) {
+ earliestDetailIndex = i;
+ earliestDetailLocationSoFar = detail->location;
+ }
+ }
+
+ return earliestDetailIndex;
+}
+
+static String findFirstBadGrammarInRange(EditorClient* client, Range* searchRange, GrammarDetail& outGrammarDetail, int& outGrammarPhraseOffset, bool markAll)
+{
+ ASSERT_ARG(client, client);
+ ASSERT_ARG(searchRange, searchRange);
+
+ // Initialize out parameters; these will be updated if we find something to return.
+ outGrammarDetail.location = -1;
+ outGrammarDetail.length = 0;
+ outGrammarDetail.guesses.clear();
+ outGrammarDetail.userDescription = "";
+ outGrammarPhraseOffset = 0;
+
+ String firstBadGrammarPhrase;
+
+ // Expand the search range to encompass entire paragraphs, since grammar checking needs that much context.
+ // Determine the character offset from the start of the paragraph to the start of the original search range,
+ // since we will want to ignore results in this area.
+ int searchRangeStartOffset;
+ String paragraphString;
+ RefPtr<Range> paragraphRange = paragraphAlignedRangeForRange(searchRange, searchRangeStartOffset, paragraphString);
+
+ // Determine the character offset from the start of the paragraph to the end of the original search range,
+ // since we will want to ignore results in this area also.
+ int searchRangeEndOffset = searchRangeStartOffset + TextIterator::rangeLength(searchRange);
+
+ // Start checking from beginning of paragraph, but skip past results that occur before the start of the original search range.
+ int startOffset = 0;
+ while (startOffset < searchRangeEndOffset) {
+ Vector<GrammarDetail> grammarDetails;
+ int badGrammarPhraseLocation = -1;
+ int badGrammarPhraseLength = 0;
+ client->checkGrammarOfString(paragraphString.characters() + startOffset, paragraphString.length() - startOffset, grammarDetails, &badGrammarPhraseLocation, &badGrammarPhraseLength);
+
+ if (!badGrammarPhraseLength) {
+ ASSERT(badGrammarPhraseLocation == -1);
+ return String();
+ }
+
+ ASSERT(badGrammarPhraseLocation >= 0);
+ badGrammarPhraseLocation += startOffset;
+
+
+ // Found some bad grammar. Find the earliest detail range that starts in our search range (if any).
+ int badGrammarIndex = findFirstGrammarDetailInRange(grammarDetails, badGrammarPhraseLocation, badGrammarPhraseLength, searchRange, searchRangeStartOffset, searchRangeEndOffset, markAll);
+ if (badGrammarIndex >= 0) {
+ ASSERT(static_cast<unsigned>(badGrammarIndex) < grammarDetails.size());
+ outGrammarDetail = grammarDetails[badGrammarIndex];
+ }
+
+ // If we found a detail in range, then we have found the first bad phrase (unless we found one earlier but
+ // kept going so we could mark all instances).
+ if (badGrammarIndex >= 0 && firstBadGrammarPhrase.isEmpty()) {
+ outGrammarPhraseOffset = badGrammarPhraseLocation - searchRangeStartOffset;
+ firstBadGrammarPhrase = paragraphString.substring(badGrammarPhraseLocation, badGrammarPhraseLength);
+
+ // Found one. We're done now, unless we're marking each instance.
+ if (!markAll)
+ break;
+ }
+
+ // These results were all between the start of the paragraph and the start of the search range; look
+ // beyond this phrase.
+ startOffset = badGrammarPhraseLocation + badGrammarPhraseLength;
+ }
+
+ return firstBadGrammarPhrase;
+}
+
+#endif /* not BUILDING_ON_TIGER */
+
+#if PLATFORM(MAC) && !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
+
+static String findFirstMisspellingOrBadGrammarInRange(EditorClient* client, Range* searchRange, bool checkGrammar, bool& outIsSpelling, int& outFirstFoundOffset, GrammarDetail& outGrammarDetail)
+{
+ ASSERT_ARG(client, client);
+ ASSERT_ARG(searchRange, searchRange);
+
+ String firstFoundItem;
+ String misspelledWord;
+ String badGrammarPhrase;
+ ExceptionCode ec = 0;
+
+ // Initialize out parameters; these will be updated if we find something to return.
+ outIsSpelling = true;
+ outFirstFoundOffset = 0;
+ outGrammarDetail.location = -1;
+ outGrammarDetail.length = 0;
+ outGrammarDetail.guesses.clear();
+ outGrammarDetail.userDescription = "";
+
+ // Expand the search range to encompass entire paragraphs, since text checking needs that much context.
+ // Determine the character offset from the start of the paragraph to the start of the original search range,
+ // since we will want to ignore results in this area.
+ RefPtr<Range> paragraphRange = searchRange->cloneRange(ec);
+ setStart(paragraphRange.get(), startOfParagraph(searchRange->startPosition()));
+ int totalRangeLength = TextIterator::rangeLength(paragraphRange.get());
+ setEnd(paragraphRange.get(), endOfParagraph(searchRange->startPosition()));
+
+ RefPtr<Range> offsetAsRange = Range::create(paragraphRange->startContainer(ec)->document(), paragraphRange->startPosition(), searchRange->startPosition());
+ int searchRangeStartOffset = TextIterator::rangeLength(offsetAsRange.get());
+ int totalLengthProcessed = 0;
+
+ bool firstIteration = true;
+ bool lastIteration = false;
+ while (totalLengthProcessed < totalRangeLength) {
+ // Iterate through the search range by paragraphs, checking each one for spelling and grammar.
+ int currentLength = TextIterator::rangeLength(paragraphRange.get());
+ int currentStartOffset = firstIteration ? searchRangeStartOffset : 0;
+ int currentEndOffset = currentLength;
+ if (inSameParagraph(paragraphRange->startPosition(), searchRange->endPosition())) {
+ // Determine the character offset from the end of the original search range to the end of the paragraph,
+ // since we will want to ignore results in this area.
+ RefPtr<Range> endOffsetAsRange = Range::create(paragraphRange->startContainer(ec)->document(), paragraphRange->startPosition(), searchRange->endPosition());
+ currentEndOffset = TextIterator::rangeLength(endOffsetAsRange.get());
+ lastIteration = true;
+ }
+ if (currentStartOffset < currentEndOffset) {
+ String paragraphString = plainText(paragraphRange.get());
+ if (paragraphString.length() > 0) {
+ bool foundGrammar = false;
+ int spellingLocation = 0;
+ int grammarPhraseLocation = 0;
+ int grammarDetailLocation = 0;
+ unsigned grammarDetailIndex = 0;
+
+ Vector<TextCheckingResult> results;
+ uint64_t checkingTypes = checkGrammar ? (TextCheckingTypeSpelling | TextCheckingTypeGrammar) : TextCheckingTypeSpelling;
+ client->checkTextOfParagraph(paragraphString.characters(), paragraphString.length(), checkingTypes, results);
+
+ for (unsigned i = 0; i < results.size(); i++) {
+ const TextCheckingResult* result = &results[i];
+ if (result->type == TextCheckingTypeSpelling && result->location >= currentStartOffset && result->location + result->length <= currentEndOffset) {
+ ASSERT(result->length > 0 && result->location >= 0);
+ spellingLocation = result->location;
+ misspelledWord = paragraphString.substring(result->location, result->length);
+ ASSERT(misspelledWord.length());
+ break;
+ }
+ if (checkGrammar && result->type == TextCheckingTypeGrammar && result->location < currentEndOffset && result->location + result->length > currentStartOffset) {
+ ASSERT(result->length > 0 && result->location >= 0);
+ // We can't stop after the first grammar result, since there might still be a spelling result after
+ // it begins but before the first detail in it, but we can stop if we find a second grammar result.
+ if (foundGrammar)
+ break;
+ for (unsigned j = 0; j < result->details.size(); j++) {
+ const GrammarDetail* detail = &result->details[j];
+ ASSERT(detail->length > 0 && detail->location >= 0);
+ if (result->location + detail->location >= currentStartOffset && result->location + detail->location + detail->length <= currentEndOffset && (!foundGrammar || result->location + detail->location < grammarDetailLocation)) {
+ grammarDetailIndex = j;
+ grammarDetailLocation = result->location + detail->location;
+ foundGrammar = true;
+ }
+ }
+ if (foundGrammar) {
+ grammarPhraseLocation = result->location;
+ outGrammarDetail = result->details[grammarDetailIndex];
+ badGrammarPhrase = paragraphString.substring(result->location, result->length);
+ ASSERT(badGrammarPhrase.length());
+ }
+ }
+ }
+
+ if (!misspelledWord.isEmpty() && (!checkGrammar || badGrammarPhrase.isEmpty() || spellingLocation <= grammarDetailLocation)) {
+ int spellingOffset = spellingLocation - currentStartOffset;
+ if (!firstIteration) {
+ RefPtr<Range> paragraphOffsetAsRange = Range::create(paragraphRange->startContainer(ec)->document(), searchRange->startPosition(), paragraphRange->startPosition());
+ spellingOffset += TextIterator::rangeLength(paragraphOffsetAsRange.get());
+ }
+ outIsSpelling = true;
+ outFirstFoundOffset = spellingOffset;
+ firstFoundItem = misspelledWord;
+ break;
+ }
+ if (checkGrammar && !badGrammarPhrase.isEmpty()) {
+ int grammarPhraseOffset = grammarPhraseLocation - currentStartOffset;
+ if (!firstIteration) {
+ RefPtr<Range> paragraphOffsetAsRange = Range::create(paragraphRange->startContainer(ec)->document(), searchRange->startPosition(), paragraphRange->startPosition());
+ grammarPhraseOffset += TextIterator::rangeLength(paragraphOffsetAsRange.get());
+ }
+ outIsSpelling = false;
+ outFirstFoundOffset = grammarPhraseOffset;
+ firstFoundItem = badGrammarPhrase;
+ break;
+ }
+ }
+ }
+ if (lastIteration || totalLengthProcessed + currentLength >= totalRangeLength)
+ break;
+ VisiblePosition newParagraphStart = startOfNextParagraph(paragraphRange->endPosition());
+ setStart(paragraphRange.get(), newParagraphStart);
+ setEnd(paragraphRange.get(), endOfParagraph(newParagraphStart));
+ firstIteration = false;
+ totalLengthProcessed += currentLength;
+ }
+ return firstFoundItem;
+}
+
+#endif
+
+void Editor::advanceToNextMisspelling(bool startBeforeSelection)
+{
+ ExceptionCode ec = 0;
+
+ // The basic approach is to search in two phases - from the selection end to the end of the doc, and
+ // then we wrap and search from the doc start to (approximately) where we started.
+
+ // Start at the end of the selection, search to edge of document. Starting at the selection end makes
+ // repeated "check spelling" commands work.
+ VisibleSelection selection(frame()->selection()->selection());
+ RefPtr<Range> spellingSearchRange(rangeOfContents(frame()->document()));
+ bool startedWithSelection = false;
+ if (selection.start().node()) {
+ startedWithSelection = true;
+ if (startBeforeSelection) {
+ VisiblePosition start(selection.visibleStart());
+ // We match AppKit's rule: Start 1 character before the selection.
+ VisiblePosition oneBeforeStart = start.previous();
+ setStart(spellingSearchRange.get(), oneBeforeStart.isNotNull() ? oneBeforeStart : start);
+ } else
+ setStart(spellingSearchRange.get(), selection.visibleEnd());
+ }
+
+ Position position = spellingSearchRange->startPosition();
+ if (!isEditablePosition(position)) {
+ // This shouldn't happen in very often because the Spelling menu items aren't enabled unless the
+ // selection is editable.
+ // This can happen in Mail for a mix of non-editable and editable content (like Stationary),
+ // when spell checking the whole document before sending the message.
+ // In that case the document might not be editable, but there are editable pockets that need to be spell checked.
+
+ position = firstEditablePositionAfterPositionInRoot(position, frame()->document()->documentElement()).deepEquivalent();
+ if (position.isNull())
+ return;
+
+ Position rangeCompliantPosition = rangeCompliantEquivalent(position);
+ spellingSearchRange->setStart(rangeCompliantPosition.node(), rangeCompliantPosition.deprecatedEditingOffset(), ec);
+ startedWithSelection = false; // won't need to wrap
+ }
+
+ // topNode defines the whole range we want to operate on
+ Node* topNode = highestEditableRoot(position);
+ // FIXME: lastOffsetForEditing() is wrong here if editingIgnoresContent(highestEditableRoot()) returns true (e.g. a <table>)
+ spellingSearchRange->setEnd(topNode, lastOffsetForEditing(topNode), ec);
+
+ // If spellingSearchRange starts in the middle of a word, advance to the next word so we start checking
+ // at a word boundary. Going back by one char and then forward by a word does the trick.
+ if (startedWithSelection) {
+ VisiblePosition oneBeforeStart = startVisiblePosition(spellingSearchRange.get(), DOWNSTREAM).previous();
+ if (oneBeforeStart.isNotNull())
+ setStart(spellingSearchRange.get(), endOfWord(oneBeforeStart));
+ // else we were already at the start of the editable node
+ }
+
+ if (spellingSearchRange->collapsed(ec))
+ return; // nothing to search in
+
+ // Get the spell checker if it is available
+ if (!client())
+ return;
+
+ // We go to the end of our first range instead of the start of it, just to be sure
+ // we don't get foiled by any word boundary problems at the start. It means we might
+ // do a tiny bit more searching.
+ Node* searchEndNodeAfterWrap = spellingSearchRange->endContainer(ec);
+ int searchEndOffsetAfterWrap = spellingSearchRange->endOffset(ec);
+
+ int misspellingOffset = 0;
+#if PLATFORM(MAC) && !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
+ RefPtr<Range> grammarSearchRange = spellingSearchRange->cloneRange(ec);
+ String misspelledWord;
+ String badGrammarPhrase;
+ int grammarPhraseOffset = 0;
+ bool isSpelling = true;
+ int foundOffset = 0;
+ GrammarDetail grammarDetail;
+ String foundItem = findFirstMisspellingOrBadGrammarInRange(client(), spellingSearchRange.get(), isGrammarCheckingEnabled(), isSpelling, foundOffset, grammarDetail);
+ if (isSpelling) {
+ misspelledWord = foundItem;
+ misspellingOffset = foundOffset;
+ } else {
+ badGrammarPhrase = foundItem;
+ grammarPhraseOffset = foundOffset;
+ }
+#else
+ RefPtr<Range> firstMisspellingRange;
+ String misspelledWord = findFirstMisspellingInRange(client(), spellingSearchRange.get(), misspellingOffset, false, firstMisspellingRange);
+ String badGrammarPhrase;
+
+#ifndef BUILDING_ON_TIGER
+ int grammarPhraseOffset = 0;
+ GrammarDetail grammarDetail;
+
+ // Search for bad grammar that occurs prior to the next misspelled word (if any)
+ RefPtr<Range> grammarSearchRange = spellingSearchRange->cloneRange(ec);
+ if (!misspelledWord.isEmpty()) {
+ // Stop looking at start of next misspelled word
+ CharacterIterator chars(grammarSearchRange.get());
+ chars.advance(misspellingOffset);
+ grammarSearchRange->setEnd(chars.range()->startContainer(ec), chars.range()->startOffset(ec), ec);
+ }
+
+ if (isGrammarCheckingEnabled())
+ badGrammarPhrase = findFirstBadGrammarInRange(client(), grammarSearchRange.get(), grammarDetail, grammarPhraseOffset, false);
+#endif
+#endif
+
+ // If we found neither bad grammar nor a misspelled word, wrap and try again (but don't bother if we started at the beginning of the
+ // block rather than at a selection).
+ if (startedWithSelection && !misspelledWord && !badGrammarPhrase) {
+ spellingSearchRange->setStart(topNode, 0, ec);
+ // going until the end of the very first chunk we tested is far enough
+ spellingSearchRange->setEnd(searchEndNodeAfterWrap, searchEndOffsetAfterWrap, ec);
+
+#if PLATFORM(MAC) && !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
+ grammarSearchRange = spellingSearchRange->cloneRange(ec);
+ foundItem = findFirstMisspellingOrBadGrammarInRange(client(), spellingSearchRange.get(), isGrammarCheckingEnabled(), isSpelling, foundOffset, grammarDetail);
+ if (isSpelling) {
+ misspelledWord = foundItem;
+ misspellingOffset = foundOffset;
+ } else {
+ badGrammarPhrase = foundItem;
+ grammarPhraseOffset = foundOffset;
+ }
+#else
+ misspelledWord = findFirstMisspellingInRange(client(), spellingSearchRange.get(), misspellingOffset, false, firstMisspellingRange);
+
+#ifndef BUILDING_ON_TIGER
+ grammarSearchRange = spellingSearchRange->cloneRange(ec);
+ if (!misspelledWord.isEmpty()) {
+ // Stop looking at start of next misspelled word
+ CharacterIterator chars(grammarSearchRange.get());
+ chars.advance(misspellingOffset);
+ grammarSearchRange->setEnd(chars.range()->startContainer(ec), chars.range()->startOffset(ec), ec);
+ }
+ if (isGrammarCheckingEnabled())
+ badGrammarPhrase = findFirstBadGrammarInRange(client(), grammarSearchRange.get(), grammarDetail, grammarPhraseOffset, false);
+#endif
+#endif
+ }
+
+ if (!badGrammarPhrase.isEmpty()) {
+#ifdef BUILDING_ON_TIGER
+ ASSERT_NOT_REACHED();
+#else
+ // We found bad grammar. Since we only searched for bad grammar up to the first misspelled word, the bad grammar
+ // takes precedence and we ignore any potential misspelled word. Select the grammar detail, update the spelling
+ // panel, and store a marker so we draw the green squiggle later.
+
+ ASSERT(badGrammarPhrase.length() > 0);
+ ASSERT(grammarDetail.location != -1 && grammarDetail.length > 0);
+
+ // FIXME 4859190: This gets confused with doubled punctuation at the end of a paragraph
+ RefPtr<Range> badGrammarRange = TextIterator::subrange(grammarSearchRange.get(), grammarPhraseOffset + grammarDetail.location, grammarDetail.length);
+ frame()->selection()->setSelection(VisibleSelection(badGrammarRange.get(), SEL_DEFAULT_AFFINITY));
+ frame()->revealSelection();
+
+ client()->updateSpellingUIWithGrammarString(badGrammarPhrase, grammarDetail);
+ frame()->document()->addMarker(badGrammarRange.get(), DocumentMarker::Grammar, grammarDetail.userDescription);
+#endif
+ } else if (!misspelledWord.isEmpty()) {
+ // We found a misspelling, but not any earlier bad grammar. Select the misspelling, update the spelling panel, and store
+ // a marker so we draw the red squiggle later.
+
+ RefPtr<Range> misspellingRange = TextIterator::subrange(spellingSearchRange.get(), misspellingOffset, misspelledWord.length());
+ frame()->selection()->setSelection(VisibleSelection(misspellingRange.get(), DOWNSTREAM));
+ frame()->revealSelection();
+
+ client()->updateSpellingUIWithMisspelledWord(misspelledWord);
+ frame()->document()->addMarker(misspellingRange.get(), DocumentMarker::Spelling);
+ }
+}
+
+bool Editor::isSelectionMisspelled()
+{
+ String selectedString = frame()->selectedText();
+ int length = selectedString.length();
+ if (!length)
+ return false;
+
+ if (!client())
+ return false;
+
+ int misspellingLocation = -1;
+ int misspellingLength = 0;
+ client()->checkSpellingOfString(selectedString.characters(), length, &misspellingLocation, &misspellingLength);
+
+ // The selection only counts as misspelled if the selected text is exactly one misspelled word
+ if (misspellingLength != length)
+ return false;
+
+ // Update the spelling panel to be displaying this error (whether or not the spelling panel is on screen).
+ // This is necessary to make a subsequent call to [NSSpellChecker ignoreWord:inSpellDocumentWithTag:] work
+ // correctly; that call behaves differently based on whether the spelling panel is displaying a misspelling
+ // or a grammar error.
+ client()->updateSpellingUIWithMisspelledWord(selectedString);
+
+ return true;
+}
+
+#ifndef BUILDING_ON_TIGER
+static bool isRangeUngrammatical(EditorClient* client, Range *range, Vector<String>& guessesVector)
+{
+ if (!client)
+ return false;
+
+ ExceptionCode ec;
+ if (!range || range->collapsed(ec))
+ return false;
+
+ // Returns true only if the passed range exactly corresponds to a bad grammar detail range. This is analogous
+ // to isSelectionMisspelled. It's not good enough for there to be some bad grammar somewhere in the range,
+ // or overlapping the range; the ranges must exactly match.
+ guessesVector.clear();
+ int grammarPhraseOffset;
+
+ GrammarDetail grammarDetail;
+ String badGrammarPhrase = findFirstBadGrammarInRange(client, range, grammarDetail, grammarPhraseOffset, false);
+
+ // No bad grammar in these parts at all.
+ if (badGrammarPhrase.isEmpty())
+ return false;
+
+ // Bad grammar, but phrase (e.g. sentence) starts beyond start of range.
+ if (grammarPhraseOffset > 0)
+ return false;
+
+ ASSERT(grammarDetail.location >= 0 && grammarDetail.length > 0);
+
+ // Bad grammar, but start of detail (e.g. ungrammatical word) doesn't match start of range
+ if (grammarDetail.location + grammarPhraseOffset)
+ return false;
+
+ // Bad grammar at start of range, but end of bad grammar is before or after end of range
+ if (grammarDetail.length != TextIterator::rangeLength(range))
+ return false;
+
+ // Update the spelling panel to be displaying this error (whether or not the spelling panel is on screen).
+ // This is necessary to make a subsequent call to [NSSpellChecker ignoreWord:inSpellDocumentWithTag:] work
+ // correctly; that call behaves differently based on whether the spelling panel is displaying a misspelling
+ // or a grammar error.
+ client->updateSpellingUIWithGrammarString(badGrammarPhrase, grammarDetail);
+
+ return true;
+}
+#endif
+
+bool Editor::isSelectionUngrammatical()
+{
+#ifdef BUILDING_ON_TIGER
+ return false;
+#else
+ Vector<String> ignoredGuesses;
+ return isRangeUngrammatical(client(), frame()->selection()->toNormalizedRange().get(), ignoredGuesses);
+#endif
+}
+
+Vector<String> Editor::guessesForUngrammaticalSelection()
+{
+#ifdef BUILDING_ON_TIGER
+ return Vector<String>();
+#else
+ Vector<String> guesses;
+ // Ignore the result of isRangeUngrammatical; we just want the guesses, whether or not there are any
+ isRangeUngrammatical(client(), frame()->selection()->toNormalizedRange().get(), guesses);
+ return guesses;
+#endif
+}
+
+Vector<String> Editor::guessesForMisspelledSelection()
+{
+ String selectedString = frame()->selectedText();
+ ASSERT(selectedString.length());
+
+ Vector<String> guesses;
+ if (client())
+ client()->getGuessesForWord(selectedString, guesses);
+ return guesses;
+}
+
+#if PLATFORM(MAC) && !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
+
+static Vector<String> guessesForMisspelledOrUngrammaticalRange(EditorClient* client, Range *range, bool checkGrammar, bool& misspelled, bool& ungrammatical)
+{
+ Vector<String> guesses;
+ ExceptionCode ec;
+ misspelled = false;
+ ungrammatical = false;
+
+ if (!client || !range || range->collapsed(ec))
+ return guesses;
+
+ // Expand the range to encompass entire paragraphs, since text checking needs that much context.
+ int rangeStartOffset;
+ String paragraphString;
+ RefPtr<Range> paragraphRange = paragraphAlignedRangeForRange(range, rangeStartOffset, paragraphString);
+ int rangeLength = TextIterator::rangeLength(range);
+ if (!rangeLength || !paragraphString.length())
+ return guesses;
+
+ Vector<TextCheckingResult> results;
+ uint64_t checkingTypes = checkGrammar ? (TextCheckingTypeSpelling | TextCheckingTypeGrammar) : TextCheckingTypeSpelling;
+ client->checkTextOfParagraph(paragraphString.characters(), paragraphString.length(), checkingTypes, results);
+
+ for (unsigned i = 0; i < results.size(); i++) {
+ const TextCheckingResult* result = &results[i];
+ if (result->type == TextCheckingTypeSpelling && result->location == rangeStartOffset && result->length == rangeLength) {
+ String misspelledWord = paragraphString.substring(rangeStartOffset, rangeLength);
+ ASSERT(misspelledWord.length());
+ client->getGuessesForWord(misspelledWord, guesses);
+ client->updateSpellingUIWithMisspelledWord(misspelledWord);
+ misspelled = true;
+ return guesses;
+ }
+ }
+
+ if (!checkGrammar)
+ return guesses;
+
+ for (unsigned i = 0; i < results.size(); i++) {
+ const TextCheckingResult* result = &results[i];
+ if (result->type == TextCheckingTypeGrammar && result->location <= rangeStartOffset && result->location + result->length >= rangeStartOffset + rangeLength) {
+ for (unsigned j = 0; j < result->details.size(); j++) {
+ const GrammarDetail* detail = &result->details[j];
+ ASSERT(detail->length > 0 && detail->location >= 0);
+ if (result->location + detail->location == rangeStartOffset && detail->length == rangeLength) {
+ String badGrammarPhrase = paragraphString.substring(result->location, result->length);
+ ASSERT(badGrammarPhrase.length());
+ for (unsigned k = 0; k < detail->guesses.size(); k++)
+ guesses.append(detail->guesses[k]);
+ client->updateSpellingUIWithGrammarString(badGrammarPhrase, *detail);
+ ungrammatical = true;
+ return guesses;
+ }
+ }
+ }
+ }
+ return guesses;
+}
+
+#endif
+
+Vector<String> Editor::guessesForMisspelledOrUngrammaticalSelection(bool& misspelled, bool& ungrammatical)
+{
+#if PLATFORM(MAC) && !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
+ return guessesForMisspelledOrUngrammaticalRange(client(), frame()->selection()->toNormalizedRange().get(), isGrammarCheckingEnabled(), misspelled, ungrammatical);
+#else
+ misspelled = isSelectionMisspelled();
+ if (misspelled) {
+ ungrammatical = false;
+ return guessesForMisspelledSelection();
+ }
+ if (isGrammarCheckingEnabled() && isSelectionUngrammatical()) {
+ ungrammatical = true;
+ return guessesForUngrammaticalSelection();
+ }
+ ungrammatical = false;
+ return Vector<String>();
+#endif
+}
+
+void Editor::showSpellingGuessPanel()
+{
+ if (!client()) {
+ LOG_ERROR("No NSSpellChecker");
+ return;
+ }
+
+#ifndef BUILDING_ON_TIGER
+ // Post-Tiger, this menu item is a show/hide toggle, to match AppKit. Leave Tiger behavior alone
+ // to match rest of OS X.
+ if (client()->spellingUIIsShowing()) {
+ client()->showSpellingUI(false);
+ return;
+ }
+#endif
+
+ advanceToNextMisspelling(true);
+ client()->showSpellingUI(true);
+}
+
+bool Editor::spellingPanelIsShowing()
+{
+ if (!client())
+ return false;
+ return client()->spellingUIIsShowing();
+}
+
+void Editor::markMisspellingsAfterTypingToPosition(const VisiblePosition &p)
+{
+#if PLATFORM(MAC) && !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
+ bool markSpelling = isContinuousSpellCheckingEnabled();
+ bool markGrammar = markSpelling && isGrammarCheckingEnabled();
+ bool performTextCheckingReplacements = isAutomaticQuoteSubstitutionEnabled()
+ || isAutomaticLinkDetectionEnabled()
+ || isAutomaticDashSubstitutionEnabled()
+ || isAutomaticTextReplacementEnabled()
+ || (markSpelling && isAutomaticSpellingCorrectionEnabled());
+ if (!markSpelling && !performTextCheckingReplacements)
+ return;
+
+ VisibleSelection adjacentWords = VisibleSelection(startOfWord(p, LeftWordIfOnBoundary), endOfWord(p, RightWordIfOnBoundary));
+ if (markGrammar) {
+ VisibleSelection selectedSentence = VisibleSelection(startOfSentence(p), endOfSentence(p));
+ markAllMisspellingsAndBadGrammarInRanges(true, adjacentWords.toNormalizedRange().get(), true, selectedSentence.toNormalizedRange().get(), performTextCheckingReplacements);
+ } else {
+ markAllMisspellingsAndBadGrammarInRanges(markSpelling, adjacentWords.toNormalizedRange().get(), false, adjacentWords.toNormalizedRange().get(), performTextCheckingReplacements);
+ }
+#else
+ if (!isContinuousSpellCheckingEnabled())
+ return;
+
+ // Check spelling of one word
+ RefPtr<Range> misspellingRange;
+ markMisspellings(VisibleSelection(startOfWord(p, LeftWordIfOnBoundary), endOfWord(p, RightWordIfOnBoundary)), misspellingRange);
+
+ // Autocorrect the misspelled word.
+ if (!misspellingRange)
+ return;
+
+ // Get the misspelled word.
+ const String misspelledWord = plainText(misspellingRange.get());
+ String autocorrectedString = client()->getAutoCorrectSuggestionForMisspelledWord(misspelledWord);
+
+ // If autocorrected word is non empty, replace the misspelled word by this word.
+ if (!autocorrectedString.isEmpty()) {
+ VisibleSelection newSelection(misspellingRange.get(), DOWNSTREAM);
+ if (newSelection != frame()->selection()->selection()) {
+ if (!frame()->shouldChangeSelection(newSelection))
+ return;
+ frame()->selection()->setSelection(newSelection);
+ }
+
+ if (!frame()->editor()->shouldInsertText(autocorrectedString, misspellingRange.get(), EditorInsertActionTyped))
+ return;
+ frame()->editor()->replaceSelectionWithText(autocorrectedString, false, false);
+
+ // Reset the charet one character further.
+ frame()->selection()->moveTo(frame()->selection()->end());
+ frame()->selection()->modify(SelectionController::AlterationMove, SelectionController::DirectionForward, CharacterGranularity);
+ }
+
+ if (!isGrammarCheckingEnabled())
+ return;
+
+ // Check grammar of entire sentence
+ markBadGrammar(VisibleSelection(startOfSentence(p), endOfSentence(p)));
+#endif
+}
+
+static void markAllMisspellingsInRange(EditorClient* client, Range* searchRange, RefPtr<Range>& firstMisspellingRange)
+{
+ // Use the "markAll" feature of findFirstMisspellingInRange. Ignore the return value and the "out parameter";
+ // all we need to do is mark every instance.
+ int ignoredOffset;
+ findFirstMisspellingInRange(client, searchRange, ignoredOffset, true, firstMisspellingRange);
+}
+
+#ifndef BUILDING_ON_TIGER
+static void markAllBadGrammarInRange(EditorClient* client, Range* searchRange)
+{
+ // Use the "markAll" feature of findFirstBadGrammarInRange. Ignore the return value and "out parameters"; all we need to
+ // do is mark every instance.
+ GrammarDetail ignoredGrammarDetail;
+ int ignoredOffset;
+ findFirstBadGrammarInRange(client, searchRange, ignoredGrammarDetail, ignoredOffset, true);
+}
+#endif
+
+static void markMisspellingsOrBadGrammar(Editor* editor, const VisibleSelection& selection, bool checkSpelling, RefPtr<Range>& firstMisspellingRange)
+{
+ // This function is called with a selection already expanded to word boundaries.
+ // Might be nice to assert that here.
+
+ // This function is used only for as-you-type checking, so if that's off we do nothing. Note that
+ // grammar checking can only be on if spell checking is also on.
+ if (!editor->isContinuousSpellCheckingEnabled())
+ return;
+
+ RefPtr<Range> searchRange(selection.toNormalizedRange());
+ if (!searchRange)
+ return;
+
+ // If we're not in an editable node, bail.
+ Node* editableNode = searchRange->startContainer();
+ if (!editableNode || !editableNode->isContentEditable())
+ return;
+
+ if (!editor->spellCheckingEnabledInFocusedNode())
+ return;
+
+ // Get the spell checker if it is available
+ if (!editor->client())
+ return;
+
+ if (checkSpelling)
+ markAllMisspellingsInRange(editor->client(), searchRange.get(), firstMisspellingRange);
+ else {
+#ifdef BUILDING_ON_TIGER
+ ASSERT_NOT_REACHED();
+#else
+ if (editor->isGrammarCheckingEnabled())
+ markAllBadGrammarInRange(editor->client(), searchRange.get());
+#endif
+ }
+}
+
+bool Editor::spellCheckingEnabledInFocusedNode() const
+{
+ // Ascend the DOM tree to find a "spellcheck" attribute.
+ // When we find a "spellcheck" attribute, retrieve its value and return false if its value is "false".
+ const Node* node = frame()->document()->focusedNode();
+ while (node) {
+ if (node->isElementNode()) {
+ const WebCore::AtomicString& value = static_cast<const Element*>(node)->getAttribute(spellcheckAttr);
+ if (equalIgnoringCase(value, "true"))
+ return true;
+ if (equalIgnoringCase(value, "false"))
+ return false;
+ }
+ node = node->parent();
+ }
+ return true;
+}
+
+void Editor::markMisspellings(const VisibleSelection& selection, RefPtr<Range>& firstMisspellingRange)
+{
+ markMisspellingsOrBadGrammar(this, selection, true, firstMisspellingRange);
+}
+
+void Editor::markBadGrammar(const VisibleSelection& selection)
+{
+#ifndef BUILDING_ON_TIGER
+ RefPtr<Range> firstMisspellingRange;
+ markMisspellingsOrBadGrammar(this, selection, false, firstMisspellingRange);
+#else
+ UNUSED_PARAM(selection);
+#endif
+}
+
+#if PLATFORM(MAC) && !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
+
+static inline bool isAmbiguousBoundaryCharacter(UChar character)
+{
+ // These are characters that can behave as word boundaries, but can appear within words.
+ // If they are just typed, i.e. if they are immediately followed by a caret, we want to delay text checking until the next character has been typed.
+ // FIXME: this is required until 6853027 is fixed and text checking can do this for us.
+ return character == '\'' || character == rightSingleQuotationMark || character == hebrewPunctuationGershayim;
+}
+
+void Editor::markAllMisspellingsAndBadGrammarInRanges(bool markSpelling, Range* spellingRange, bool markGrammar, Range* grammarRange, bool performTextCheckingReplacements)
+{
+ // This function is called with selections already expanded to word boundaries.
+ ExceptionCode ec = 0;
+ if (!client() || !spellingRange || (markGrammar && !grammarRange))
+ return;
+
+ // If we're not in an editable node, bail.
+ Node* editableNode = spellingRange->startContainer();
+ if (!editableNode || !editableNode->isContentEditable())
+ return;
+
+ if (!spellCheckingEnabledInFocusedNode())
+ return;
+
+ // Expand the range to encompass entire paragraphs, since text checking needs that much context.
+ int spellingRangeStartOffset = 0;
+ int spellingRangeEndOffset = 0;
+ int grammarRangeStartOffset = 0;
+ int grammarRangeEndOffset = 0;
+ int offsetDueToReplacement = 0;
+ int paragraphLength = 0;
+ int selectionOffset = 0;
+ int ambiguousBoundaryOffset = -1;
+ bool selectionChanged = false;
+ bool restoreSelectionAfterChange = false;
+ bool adjustSelectionForParagraphBoundaries = false;
+ String paragraphString;
+ RefPtr<Range> paragraphRange;
+
+ if (markGrammar) {
+ // The spelling range should be contained in the paragraph-aligned extension of the grammar range.
+ paragraphRange = paragraphAlignedRangeForRange(grammarRange, grammarRangeStartOffset, paragraphString);
+ RefPtr<Range> offsetAsRange = Range::create(paragraphRange->startContainer(ec)->document(), paragraphRange->startPosition(), spellingRange->startPosition());
+ spellingRangeStartOffset = TextIterator::rangeLength(offsetAsRange.get());
+ grammarRangeEndOffset = grammarRangeStartOffset + TextIterator::rangeLength(grammarRange);
+ } else {
+ paragraphRange = paragraphAlignedRangeForRange(spellingRange, spellingRangeStartOffset, paragraphString);
+ }
+ spellingRangeEndOffset = spellingRangeStartOffset + TextIterator::rangeLength(spellingRange);
+ paragraphLength = paragraphString.length();
+ if (paragraphLength <= 0 || (spellingRangeStartOffset >= spellingRangeEndOffset && (!markGrammar || grammarRangeStartOffset >= grammarRangeEndOffset)))
+ return;
+
+ if (performTextCheckingReplacements) {
+ if (m_frame->selection()->selectionType() == VisibleSelection::CaretSelection) {
+ // Attempt to save the caret position so we can restore it later if needed
+ RefPtr<Range> offsetAsRange = Range::create(paragraphRange->startContainer(ec)->document(), paragraphRange->startPosition(), paragraphRange->startPosition());
+ Position caretPosition = m_frame->selection()->end();
+ offsetAsRange->setEnd(caretPosition.containerNode(), caretPosition.computeOffsetInContainerNode(), ec);
+ if (!ec) {
+ selectionOffset = TextIterator::rangeLength(offsetAsRange.get());
+ restoreSelectionAfterChange = true;
+ if (selectionOffset > 0 && (selectionOffset > paragraphLength || paragraphString[selectionOffset - 1] == newlineCharacter))
+ adjustSelectionForParagraphBoundaries = true;
+ if (selectionOffset > 0 && selectionOffset <= paragraphLength && isAmbiguousBoundaryCharacter(paragraphString[selectionOffset - 1]))
+ ambiguousBoundaryOffset = selectionOffset - 1;
+ }
+ }
+ }
+
+ Vector<TextCheckingResult> results;
+ uint64_t checkingTypes = 0;
+ if (markSpelling)
+ checkingTypes |= TextCheckingTypeSpelling;
+ if (markGrammar)
+ checkingTypes |= TextCheckingTypeGrammar;
+ if (performTextCheckingReplacements) {
+ if (isAutomaticLinkDetectionEnabled())
+ checkingTypes |= TextCheckingTypeLink;
+ if (isAutomaticQuoteSubstitutionEnabled())
+ checkingTypes |= TextCheckingTypeQuote;
+ if (isAutomaticDashSubstitutionEnabled())
+ checkingTypes |= TextCheckingTypeDash;
+ if (isAutomaticTextReplacementEnabled())
+ checkingTypes |= TextCheckingTypeReplacement;
+ if (markSpelling && isAutomaticSpellingCorrectionEnabled())
+ checkingTypes |= TextCheckingTypeCorrection;
+ }
+ client()->checkTextOfParagraph(paragraphString.characters(), paragraphLength, checkingTypes, results);
+
+ for (unsigned i = 0; i < results.size(); i++) {
+ const TextCheckingResult* result = &results[i];
+ int resultLocation = result->location + offsetDueToReplacement;
+ int resultLength = result->length;
+ if (markSpelling && result->type == TextCheckingTypeSpelling && resultLocation >= spellingRangeStartOffset && resultLocation + resultLength <= spellingRangeEndOffset) {
+ ASSERT(resultLength > 0 && resultLocation >= 0);
+ RefPtr<Range> misspellingRange = TextIterator::subrange(spellingRange, resultLocation - spellingRangeStartOffset, resultLength);
+ misspellingRange->startContainer(ec)->document()->addMarker(misspellingRange.get(), DocumentMarker::Spelling);
+ } else if (markGrammar && result->type == TextCheckingTypeGrammar && resultLocation < grammarRangeEndOffset && resultLocation + resultLength > grammarRangeStartOffset) {
+ ASSERT(resultLength > 0 && resultLocation >= 0);
+ for (unsigned j = 0; j < result->details.size(); j++) {
+ const GrammarDetail* detail = &result->details[j];
+ ASSERT(detail->length > 0 && detail->location >= 0);
+ if (resultLocation + detail->location >= grammarRangeStartOffset && resultLocation + detail->location + detail->length <= grammarRangeEndOffset) {
+ RefPtr<Range> badGrammarRange = TextIterator::subrange(grammarRange, resultLocation + detail->location - grammarRangeStartOffset, detail->length);
+ grammarRange->startContainer(ec)->document()->addMarker(badGrammarRange.get(), DocumentMarker::Grammar, detail->userDescription);
+ }
+ }
+ } else if (performTextCheckingReplacements && resultLocation + resultLength <= spellingRangeEndOffset && resultLocation + resultLength >= spellingRangeStartOffset
+ && (result->type == TextCheckingTypeLink
+ || result->type == TextCheckingTypeQuote
+ || result->type == TextCheckingTypeDash
+ || result->type == TextCheckingTypeReplacement
+ || result->type == TextCheckingTypeCorrection)) {
+ // In this case the result range just has to touch the spelling range, so we can handle replacing non-word text such as punctuation.
+ ASSERT(resultLength > 0 && resultLocation >= 0);
+ int replacementLength = result->replacement.length();
+ bool doReplacement = (replacementLength > 0);
+ RefPtr<Range> rangeToReplace = TextIterator::subrange(paragraphRange.get(), resultLocation, resultLength);
+ VisibleSelection selectionToReplace(rangeToReplace.get(), DOWNSTREAM);
+
+ // avoid correcting text after an ambiguous boundary character has been typed
+ // FIXME: this is required until 6853027 is fixed and text checking can do this for us
+ if (ambiguousBoundaryOffset >= 0 && resultLocation + resultLength == ambiguousBoundaryOffset)
+ doReplacement = false;
+
+ // adding links should be done only immediately after they are typed
+ if (result->type == TextCheckingTypeLink && selectionOffset > resultLocation + resultLength + 1)
+ doReplacement = false;
+
+ // Don't correct spelling in an already-corrected word.
+ if (doReplacement && result->type == TextCheckingTypeCorrection) {
+ Node* node = rangeToReplace->startContainer();
+ int startOffset = rangeToReplace->startOffset();
+ int endOffset = startOffset + replacementLength;
+ Vector<DocumentMarker> markers = node->document()->markersForNode(node);
+ size_t markerCount = markers.size();
+ for (size_t i = 0; i < markerCount; ++i) {
+ const DocumentMarker& marker = markers[i];
+ if (marker.type == DocumentMarker::Replacement && static_cast<int>(marker.startOffset) < endOffset && static_cast<int>(marker.endOffset) > startOffset) {
+ doReplacement = false;
+ break;
+ }
+ if (static_cast<int>(marker.startOffset) >= endOffset)
+ break;
+ }
+ }
+ if (doReplacement && selectionToReplace != m_frame->selection()->selection()) {
+ if (m_frame->shouldChangeSelection(selectionToReplace)) {
+ m_frame->selection()->setSelection(selectionToReplace);
+ selectionChanged = true;
+ } else {
+ doReplacement = false;
+ }
+ }
+ if (doReplacement) {
+ if (result->type == TextCheckingTypeLink) {
+ restoreSelectionAfterChange = false;
+ if (canEditRichly())
+ applyCommand(CreateLinkCommand::create(m_frame->document(), result->replacement));
+ } else if (canEdit() && shouldInsertText(result->replacement, rangeToReplace.get(), EditorInsertActionTyped)) {
+ String replacedString;
+ if (result->type == TextCheckingTypeCorrection)
+ replacedString = plainText(rangeToReplace.get());
+ replaceSelectionWithText(result->replacement, false, false);
+ spellingRangeEndOffset += replacementLength - resultLength;
+ offsetDueToReplacement += replacementLength - resultLength;
+ if (resultLocation < selectionOffset)
+ selectionOffset += replacementLength - resultLength;
+ if (result->type == TextCheckingTypeCorrection) {
+ // Add a marker so that corrections can easily be undone and won't be re-corrected.
+ RefPtr<Range> replacedRange = TextIterator::subrange(paragraphRange.get(), resultLocation, replacementLength);
+ replacedRange->startContainer()->document()->addMarker(replacedRange.get(), DocumentMarker::Replacement, replacedString);
+ }
+ }
+ }
+ }
+ }
+
+ if (selectionChanged) {
+ // Restore the caret position if we have made any replacements
+ setEnd(paragraphRange.get(), endOfParagraph(startOfNextParagraph(paragraphRange->startPosition())));
+ int newLength = TextIterator::rangeLength(paragraphRange.get());
+ if (restoreSelectionAfterChange && selectionOffset >= 0 && selectionOffset <= newLength) {
+ RefPtr<Range> selectionRange = TextIterator::subrange(paragraphRange.get(), 0, selectionOffset);
+ m_frame->selection()->moveTo(selectionRange->endPosition(), DOWNSTREAM);
+ if (adjustSelectionForParagraphBoundaries)
+ m_frame->selection()->modify(SelectionController::AlterationMove, SelectionController::DirectionForward, CharacterGranularity);
+ } else {
+ // If this fails for any reason, the fallback is to go one position beyond the last replacement
+ m_frame->selection()->moveTo(m_frame->selection()->end());
+ m_frame->selection()->modify(SelectionController::AlterationMove, SelectionController::DirectionForward, CharacterGranularity);
+ }
+ }
+}
+
+void Editor::changeBackToReplacedString(const String& replacedString)
+{
+ if (replacedString.isEmpty())
+ return;
+
+ RefPtr<Range> selection = selectedRange();
+ if (!shouldInsertText(replacedString, selection.get(), EditorInsertActionPasted))
+ return;
+
+ String paragraphString;
+ int selectionOffset;
+ RefPtr<Range> paragraphRange = paragraphAlignedRangeForRange(selection.get(), selectionOffset, paragraphString);
+ replaceSelectionWithText(replacedString, false, false);
+ RefPtr<Range> changedRange = TextIterator::subrange(paragraphRange.get(), selectionOffset, replacedString.length());
+ changedRange->startContainer()->document()->addMarker(changedRange.get(), DocumentMarker::Replacement, String());
+}
+
+#endif
+
+void Editor::markMisspellingsAndBadGrammar(const VisibleSelection& spellingSelection, bool markGrammar, const VisibleSelection& grammarSelection)
+{
+#if PLATFORM(MAC) && !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
+ if (!isContinuousSpellCheckingEnabled())
+ return;
+ markAllMisspellingsAndBadGrammarInRanges(true, spellingSelection.toNormalizedRange().get(), markGrammar && isGrammarCheckingEnabled(), grammarSelection.toNormalizedRange().get(), false);
+#else
+ RefPtr<Range> firstMisspellingRange;
+ markMisspellings(spellingSelection, firstMisspellingRange);
+ if (markGrammar)
+ markBadGrammar(grammarSelection);
+#endif
+}
+
+PassRefPtr<Range> Editor::rangeForPoint(const IntPoint& windowPoint)
+{
+ Document* document = m_frame->documentAtPoint(windowPoint);
+ if (!document)
+ return 0;
+
+ Frame* frame = document->frame();
+ ASSERT(frame);
+ FrameView* frameView = frame->view();
+ if (!frameView)
+ return 0;
+ IntPoint framePoint = frameView->windowToContents(windowPoint);
+ VisibleSelection selection(frame->visiblePositionForPoint(framePoint));
+ return avoidIntersectionWithNode(selection.toNormalizedRange().get(), m_deleteButtonController->containerElement());
+}
+
+void Editor::revealSelectionAfterEditingOperation()
+{
+ if (m_ignoreCompositionSelectionChange)
+ return;
+
+ m_frame->revealSelection(ScrollAlignment::alignToEdgeIfNeeded);
+}
+
+void Editor::setIgnoreCompositionSelectionChange(bool ignore)
+{
+ if (m_ignoreCompositionSelectionChange == ignore)
+ return;
+
+ m_ignoreCompositionSelectionChange = ignore;
+ if (!ignore)
+ revealSelectionAfterEditingOperation();
+}
+
+PassRefPtr<Range> Editor::compositionRange() const
+{
+ if (!m_compositionNode)
+ return 0;
+ unsigned length = m_compositionNode->length();
+ unsigned start = min(m_compositionStart, length);
+ unsigned end = min(max(start, m_compositionEnd), length);
+ if (start >= end)
+ return 0;
+ return Range::create(m_compositionNode->document(), m_compositionNode.get(), start, m_compositionNode.get(), end);
+}
+
+bool Editor::getCompositionSelection(unsigned& selectionStart, unsigned& selectionEnd) const
+{
+ if (!m_compositionNode)
+ return false;
+ Position start = m_frame->selection()->start();
+ if (start.node() != m_compositionNode)
+ return false;
+ Position end = m_frame->selection()->end();
+ if (end.node() != m_compositionNode)
+ return false;
+
+ if (static_cast<unsigned>(start.deprecatedEditingOffset()) < m_compositionStart)
+ return false;
+ if (static_cast<unsigned>(end.deprecatedEditingOffset()) > m_compositionEnd)
+ return false;
+
+ selectionStart = start.deprecatedEditingOffset() - m_compositionStart;
+ selectionEnd = start.deprecatedEditingOffset() - m_compositionEnd;
+ return true;
+}
+
+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()) {
+ if (!m_frame->shouldChangeSelection(newSelection))
+ return;
+ m_frame->selection()->setSelection(newSelection);
+ }
+
+ // Insert the transposed characters.
+ if (!shouldInsertText(transposed, range.get(), EditorInsertActionTyped))
+ return;
+ 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;
+}
+
+bool Editor::insideVisibleArea(const IntPoint& point) const
+{
+ if (m_frame->excludeFromTextSearch())
+ return false;
+
+ // Right now, we only check the visibility of a point for disconnected frames. For all other
+ // frames, we assume visibility.
+ Frame* frame = m_frame->isDisconnected() ? m_frame : m_frame->tree()->top(true);
+ if (!frame->isDisconnected())
+ return true;
+
+ RenderPart* renderer = frame->ownerRenderer();
+ if (!renderer)
+ return false;
+
+ RenderBlock* container = renderer->containingBlock();
+ if (!(container->style()->overflowX() == OHIDDEN || container->style()->overflowY() == OHIDDEN))
+ return true;
+
+ IntRect rectInPageCoords = container->overflowClipRect(0, 0);
+ IntRect rectInFrameCoords = IntRect(renderer->x() * -1, renderer->y() * -1,
+ rectInPageCoords.width(), rectInPageCoords.height());
+
+ return rectInFrameCoords.contains(point);
+}
+
+bool Editor::insideVisibleArea(Range* range) const
+{
+ if (!range)
+ return true;
+
+ if (m_frame->excludeFromTextSearch())
+ return false;
+
+ // Right now, we only check the visibility of a range for disconnected frames. For all other
+ // frames, we assume visibility.
+ Frame* frame = m_frame->isDisconnected() ? m_frame : m_frame->tree()->top(true);
+ if (!frame->isDisconnected())
+ return true;
+
+ RenderPart* renderer = frame->ownerRenderer();
+ if (!renderer)
+ return false;
+
+ RenderBlock* container = renderer->containingBlock();
+ if (!(container->style()->overflowX() == OHIDDEN || container->style()->overflowY() == OHIDDEN))
+ return true;
+
+ IntRect rectInPageCoords = container->overflowClipRect(0, 0);
+ IntRect rectInFrameCoords = IntRect(renderer->x() * -1, renderer->y() * -1,
+ rectInPageCoords.width(), rectInPageCoords.height());
+ IntRect resultRect = range->boundingBox();
+
+ return rectInFrameCoords.contains(resultRect);
+}
+
+PassRefPtr<Range> Editor::firstVisibleRange(const String& target, bool caseFlag)
+{
+ RefPtr<Range> searchRange(rangeOfContents(m_frame->document()));
+ RefPtr<Range> resultRange = findPlainText(searchRange.get(), target, true, caseFlag);
+ ExceptionCode ec = 0;
+
+ while (!insideVisibleArea(resultRange.get())) {
+ searchRange->setStartAfter(resultRange->endContainer(), ec);
+ if (searchRange->startContainer() == searchRange->endContainer())
+ return Range::create(m_frame->document());
+ resultRange = findPlainText(searchRange.get(), target, true, caseFlag);
+ }
+
+ return resultRange;
+}
+
+PassRefPtr<Range> Editor::lastVisibleRange(const String& target, bool caseFlag)
+{
+ RefPtr<Range> searchRange(rangeOfContents(m_frame->document()));
+ RefPtr<Range> resultRange = findPlainText(searchRange.get(), target, false, caseFlag);
+ ExceptionCode ec = 0;
+
+ while (!insideVisibleArea(resultRange.get())) {
+ searchRange->setEndBefore(resultRange->startContainer(), ec);
+ if (searchRange->startContainer() == searchRange->endContainer())
+ return Range::create(m_frame->document());
+ resultRange = findPlainText(searchRange.get(), target, false, caseFlag);
+ }
+
+ return resultRange;
+}
+
+PassRefPtr<Range> Editor::nextVisibleRange(Range* currentRange, const String& target, bool forward, bool caseFlag, bool wrapFlag)
+{
+ if (m_frame->excludeFromTextSearch())
+ return Range::create(m_frame->document());
+
+ RefPtr<Range> resultRange = currentRange;
+ RefPtr<Range> searchRange(rangeOfContents(m_frame->document()));
+ ExceptionCode ec = 0;
+
+ for ( ; !insideVisibleArea(resultRange.get()); resultRange = findPlainText(searchRange.get(), target, forward, caseFlag)) {
+ if (resultRange->collapsed(ec)) {
+ if (!resultRange->startContainer()->isInShadowTree())
+ break;
+ searchRange = rangeOfContents(m_frame->document());
+ if (forward)
+ searchRange->setStartAfter(resultRange->startContainer()->shadowAncestorNode(), ec);
+ else
+ searchRange->setEndBefore(resultRange->startContainer()->shadowAncestorNode(), ec);
+ continue;
+ }
+
+ if (forward)
+ searchRange->setStartAfter(resultRange->endContainer(), ec);
+ else
+ searchRange->setEndBefore(resultRange->startContainer(), ec);
+
+ Node* shadowTreeRoot = searchRange->shadowTreeRootNode();
+ if (searchRange->collapsed(ec) && shadowTreeRoot) {
+ if (forward)
+ searchRange->setEnd(shadowTreeRoot, shadowTreeRoot->childNodeCount(), ec);
+ else
+ searchRange->setStartBefore(shadowTreeRoot, ec);
+ }
+
+ if (searchRange->startContainer()->isDocumentNode() && searchRange->endContainer()->isDocumentNode())
+ break;
+ }
+
+ if (insideVisibleArea(resultRange.get()))
+ return resultRange;
+
+ if (!wrapFlag)
+ return Range::create(m_frame->document());
+
+ if (forward)
+ return firstVisibleRange(target, caseFlag);
+
+ return lastVisibleRange(target, caseFlag);
+}
+
+void Editor::changeSelectionAfterCommand(const VisibleSelection& newSelection, bool closeTyping, bool clearTypingStyle)
+{
+ // If there is no selection change, don't bother sending shouldChangeSelection, but still call setSelection,
+ // because there is work that it must do in this situation.
+ // The old selection can be invalid here and calling shouldChangeSelection can produce some strange calls.
+ // See <rdar://problem/5729315> Some shouldChangeSelectedDOMRange contain Ranges for selections that are no longer valid
+ bool selectionDidNotChangeDOMPosition = newSelection == m_frame->selection()->selection();
+ if (selectionDidNotChangeDOMPosition || m_frame->shouldChangeSelection(newSelection))
+ m_frame->selection()->setSelection(newSelection, closeTyping, clearTypingStyle);
+
+ // 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 SelectionController::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();
+}
+
+} // namespace WebCore