| /* |
| * Copyright (C) 2006, 2007 Apple Inc. All rights reserved. |
| * Copyright (C) 2007 Trolltech ASA |
| * |
| * 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 "CSSProperty.h" |
| #include "CSSPropertyNames.h" |
| #include "CharacterData.h" |
| #include "Clipboard.h" |
| #include "ClipboardEvent.h" |
| #include "DeleteButtonController.h" |
| #include "DeleteSelectionCommand.h" |
| #include "DocLoader.h" |
| #include "Document.h" |
| #include "DocumentFragment.h" |
| #include "EditCommand.h" |
| #include "Editor.h" |
| #include "EditorClient.h" |
| #include "Event.h" |
| #include "EventHandler.h" |
| #include "EventNames.h" |
| #include "FocusController.h" |
| #include "FrameView.h" |
| #include "HTMLElement.h" |
| #include "HTMLInputElement.h" |
| #include "HTMLNames.h" |
| #include "HTMLTextAreaElement.h" |
| #include "HitTestResult.h" |
| #include "IndentOutdentCommand.h" |
| #include "InsertListCommand.h" |
| #include "KeyboardEvent.h" |
| #include "KURL.h" |
| #include "ModifySelectionListLevel.h" |
| #include "Page.h" |
| #include "Pasteboard.h" |
| #include "Range.h" |
| #include "ReplaceSelectionCommand.h" |
| #include "SelectionController.h" |
| #include "Sound.h" |
| #include "Text.h" |
| #include "TextIterator.h" |
| #include "TypingCommand.h" |
| #include "htmlediting.h" |
| #include "markup.h" |
| #include "visible_units.h" |
| |
| namespace WebCore { |
| |
| class FontData; |
| |
| using namespace std; |
| using namespace EventNames; |
| 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. |
| static Selection selectionForEvent(Frame* frame, Event* event) |
| { |
| Page* page = frame->page(); |
| if (!page) |
| return Selection(); |
| Selection selection = page->selection(); |
| if (!event) |
| return selection; |
| Node* target = event->target()->toNode(); |
| Node* selectionStart = selection.start().node(); |
| |
| // 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. |
| 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; |
| } |
| |
| EditorClient* Editor::client() const |
| { |
| if (Page* page = m_frame->page()) |
| return page->editorClient(); |
| return 0; |
| } |
| |
| void Editor::handleKeypress(KeyboardEvent* event) |
| { |
| if (EditorClient* c = client()) |
| if (selectionForEvent(m_frame, event).isContentEditable()) |
| c->handleKeypress(event); |
| } |
| |
| void Editor::handleInputMethodKeypress(KeyboardEvent* event) |
| { |
| if (EditorClient* c = client()) |
| if (selectionForEvent(m_frame, event).isContentEditable()) |
| c->handleInputMethodKeypress(event); |
| } |
| |
| bool Editor::canEdit() const |
| { |
| return m_frame->selectionController()->isContentEditable(); |
| } |
| |
| bool Editor::canEditRichly() const |
| { |
| return m_frame->selectionController()->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->selectionController()->isInPasswordField() && !dispatchCPPEvent(beforecutEvent, ClipboardNumb); |
| } |
| |
| bool Editor::canDHTMLCopy() |
| { |
| return !m_frame->selectionController()->isInPasswordField() && !dispatchCPPEvent(beforecopyEvent, ClipboardNumb); |
| } |
| |
| bool Editor::canDHTMLPaste() |
| { |
| return !dispatchCPPEvent(beforepasteEvent, ClipboardNumb); |
| } |
| |
| bool Editor::canCut() const |
| { |
| return canCopy() && canDelete(); |
| } |
| |
| static Node* imageNodeFromImageDocument(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 node; |
| } |
| |
| bool Editor::canCopy() const |
| { |
| if (imageNodeFromImageDocument(m_frame->document())) |
| return true; |
| |
| SelectionController* selectionController = m_frame->selectionController(); |
| return selectionController->isRange() && !selectionController->isInPasswordField(); |
| } |
| |
| bool Editor::canPaste() const |
| { |
| return canEdit(); |
| } |
| |
| bool Editor::canDelete() const |
| { |
| SelectionController* selectionController = m_frame->selectionController(); |
| return selectionController->isRange() && selectionController->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; |
| } |
| |
| void Editor::deleteRange(Range* range, bool killRing, bool prepend, bool smartDeleteOK, EditorDeleteAction deletionAction, TextGranularity granularity) |
| { |
| if (killRing) |
| addToKillRing(range, prepend); |
| |
| ExceptionCode ec = 0; |
| |
| SelectionController* selectionController = m_frame->selectionController(); |
| bool smartDelete = smartDeleteOK && canSmartCopyOrDelete(); |
| switch (deletionAction) { |
| case deleteSelectionAction: |
| selectionController->setSelectedRange(range, DOWNSTREAM, true, ec); |
| if (ec) |
| return; |
| deleteSelectionWithSmartDelete(smartDelete); |
| break; |
| case deleteKeyAction: |
| selectionController->setSelectedRange(range, DOWNSTREAM, (granularity != CharacterGranularity), ec); |
| if (ec) |
| return; |
| if (m_frame->document()) { |
| TypingCommand::deleteKeyPressed(m_frame->document(), smartDelete, granularity); |
| revealSelectionAfterEditingOperation(); |
| } |
| break; |
| case forwardDeleteKeyAction: |
| selectionController->setSelectedRange(range, DOWNSTREAM, (granularity != CharacterGranularity), ec); |
| if (ec) |
| return; |
| if (m_frame->document()) { |
| TypingCommand::forwardDeleteKeyPressed(m_frame->document(), smartDelete, granularity); |
| revealSelectionAfterEditingOperation(); |
| } |
| break; |
| } |
| |
| // 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); |
| } |
| |
| bool Editor::deleteWithDirection(SelectionController::EDirection direction, TextGranularity granularity, bool killRing, bool isTypingAction) |
| { |
| // Delete the selection, if there is one. |
| // If not, make a selection using the passed-in direction and granularity. |
| |
| if (!canEdit()) |
| return false; |
| |
| RefPtr<Range> range; |
| EditorDeleteAction deletionAction = deleteSelectionAction; |
| |
| bool smartDeleteOK = false; |
| |
| if (m_frame->selectionController()->isRange()) { |
| range = selectedRange(); |
| smartDeleteOK = true; |
| if (isTypingAction) |
| deletionAction = deleteKeyAction; |
| } else { |
| SelectionController selectionController; |
| selectionController.setSelection(m_frame->selectionController()->selection()); |
| selectionController.modify(SelectionController::EXTEND, direction, granularity); |
| if (killRing && selectionController.isCaret() && granularity != CharacterGranularity) |
| selectionController.modify(SelectionController::EXTEND, direction, CharacterGranularity); |
| |
| range = selectionController.toRange(); |
| |
| switch (direction) { |
| case SelectionController::FORWARD: |
| case SelectionController::RIGHT: |
| deletionAction = forwardDeleteKeyAction; |
| break; |
| case SelectionController::BACKWARD: |
| case SelectionController::LEFT: |
| deletionAction = deleteKeyAction; |
| break; |
| } |
| } |
| |
| deleteRange(range.get(), killRing, false, smartDeleteOK, deletionAction, granularity); |
| |
| return true; |
| } |
| |
| void Editor::deleteSelectionWithSmartDelete() |
| { |
| deleteSelectionWithSmartDelete(canSmartCopyOrDelete()); |
| } |
| |
| void Editor::deleteSelectionWithSmartDelete(bool smartDelete) |
| { |
| if (m_frame->selectionController()->isNone()) |
| return; |
| |
| applyCommand(new DeleteSelectionCommand(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->selectionController()->isNone() || !fragment) |
| return; |
| |
| applyCommand(new ReplaceSelectionCommand(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->selectionController()->toRange(); |
| } |
| |
| 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->selectionController()->isInPasswordField()) |
| return false; |
| |
| // 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(copyEvent, ClipboardWritable); |
| } |
| |
| bool Editor::tryDHTMLCut() |
| { |
| if (m_frame->selectionController()->isInPasswordField()) |
| return false; |
| |
| // 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(cutEvent, ClipboardWritable); |
| } |
| |
| bool Editor::tryDHTMLPaste() |
| { |
| return !dispatchCPPEvent(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 Selection& oldSelection) |
| { |
| if (client()) |
| client()->respondToChangedSelection(); |
| m_deleteButtonController->respondToChangedSelection(oldSelection); |
| } |
| |
| void Editor::respondToChangedContents(const Selection& endingSelection) |
| { |
| if (AXObjectCache::accessibilityEnabled()) { |
| Node* node = endingSelection.start().node(); |
| if (node) |
| m_frame->renderer()->document()->axObjectCache()->postNotification(node->renderer(), "AXValueChanged"); |
| } |
| |
| if (client()) |
| client()->respondToChangedContents(); |
| } |
| |
| const FontData* Editor::fontForSelection(bool& hasMultipleFonts) const |
| { |
| #if !PLATFORM(QT) |
| hasMultipleFonts = false; |
| |
| if (!m_frame->selectionController()->isRange()) { |
| Node* nodeToRemove; |
| RenderStyle* style = m_frame->styleForSelectionStart(nodeToRemove); // sets nodeToRemove |
| |
| const FontData* result = 0; |
| if (style) |
| result = style->font().primaryFont(); |
| |
| if (nodeToRemove) { |
| ExceptionCode ec; |
| nodeToRemove->remove(ec); |
| ASSERT(ec == 0); |
| } |
| |
| return result; |
| } |
| |
| const FontData* font = 0; |
| |
| RefPtr<Range> range = m_frame->selectionController()->toRange(); |
| Node* startNode = range->editingStartPosition().node(); |
| if (startNode) { |
| Node* pastEnd = range->pastEndNode(); |
| // 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 FontData* f = renderer->style()->font().primaryFont(); |
| if (!font) |
| font = f; |
| else if (font != f) { |
| hasMultipleFonts = true; |
| break; |
| } |
| } |
| } |
| |
| return font; |
| #else |
| return 0; |
| #endif |
| } |
| |
| Frame::TriState Editor::selectionUnorderedListState() const |
| { |
| if (m_frame->selectionController()->isCaret()) { |
| Node* selectionNode = m_frame->selectionController()->selection().start().node(); |
| if (enclosingNodeWithTag(selectionNode, ulTag)) |
| return Frame::trueTriState; |
| } else if (m_frame->selectionController()->isRange()) { |
| Node* startNode = enclosingNodeWithTag(m_frame->selectionController()->selection().start().node(), ulTag); |
| Node* endNode = enclosingNodeWithTag(m_frame->selectionController()->selection().end().node(), ulTag); |
| if (startNode && endNode && startNode == endNode) |
| return Frame::trueTriState; |
| } |
| |
| return Frame::falseTriState; |
| } |
| |
| Frame::TriState Editor::selectionOrderedListState() const |
| { |
| if (m_frame->selectionController()->isCaret()) { |
| Node* selectionNode = m_frame->selectionController()->selection().start().node(); |
| if (enclosingNodeWithTag(selectionNode, olTag)) |
| return Frame::trueTriState; |
| } else if (m_frame->selectionController()->isRange()) { |
| Node* startNode = enclosingNodeWithTag(m_frame->selectionController()->selection().start().node(), olTag); |
| Node* endNode = enclosingNodeWithTag(m_frame->selectionController()->selection().end().node(), olTag); |
| if (startNode && endNode && startNode == endNode) |
| return Frame::trueTriState; |
| } |
| |
| return Frame::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->selectionController()->isNone()) |
| return 0; |
| |
| RefPtr<Node> newList = IncreaseSelectionListLevelCommand::increaseSelectionListLevel(m_frame->document()); |
| revealSelectionAfterEditingOperation(); |
| return newList; |
| } |
| |
| PassRefPtr<Node> Editor::increaseSelectionListLevelOrdered() |
| { |
| if (!canEditRichly() || m_frame->selectionController()->isNone()) |
| return 0; |
| |
| PassRefPtr<Node> newList = IncreaseSelectionListLevelCommand::increaseSelectionListLevelOrdered(m_frame->document()); |
| revealSelectionAfterEditingOperation(); |
| return newList; |
| } |
| |
| PassRefPtr<Node> Editor::increaseSelectionListLevelUnordered() |
| { |
| if (!canEditRichly() || m_frame->selectionController()->isNone()) |
| return 0; |
| |
| PassRefPtr<Node> newList = IncreaseSelectionListLevelCommand::increaseSelectionListLevelUnordered(m_frame->document()); |
| revealSelectionAfterEditingOperation(); |
| return newList; |
| } |
| |
| void Editor::decreaseSelectionListLevel() |
| { |
| if (!canEditRichly() || m_frame->selectionController()->isNone()) |
| return; |
| |
| DecreaseSelectionListLevelCommand::decreaseSelectionListLevel(m_frame->document()); |
| revealSelectionAfterEditingOperation(); |
| } |
| |
| void Editor::removeFormattingAndStyle() |
| { |
| Document* document = m_frame->document(); |
| |
| // Make a plain text string from the selection to remove formatting like tables and lists. |
| String string = m_frame->selectionController()->toString(); |
| |
| // Get the default style for this editable root, it's the style that we'll give the |
| // content that we're operating on. |
| Node* root = m_frame->selectionController()->rootEditableElement(); |
| RefPtr<CSSComputedStyleDeclaration> computedStyle = new CSSComputedStyleDeclaration(root); |
| RefPtr<CSSMutableStyleDeclaration> defaultStyle = computedStyle->copyInheritableProperties(); |
| |
| // Delete the selected content. |
| // FIXME: We should be able to leave this to insertText, but its delete operation |
| // doesn't preserve the style we're about to set. |
| deleteSelectionWithSmartDelete(false); |
| // Normally, deleting a fully selected anchor and then inserting text will re-create |
| // the removed anchor, but we don't want that behavior here. |
| setRemovedAnchor(0); |
| // Insert the content with the default style. |
| m_frame->setTypingStyle(defaultStyle.get()); |
| TypingCommand::insertText(document, string, true); |
| } |
| |
| void Editor::setLastEditCommand(PassRefPtr<EditCommand> lastEditCommand) |
| { |
| m_lastEditCommand = lastEditCommand; |
| } |
| |
| // 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->selectionController()->start().element(); |
| if (!target && m_frame->document()) |
| target = m_frame->document()->body(); |
| if (!target) |
| return true; |
| target = target->shadowAncestorNode(); |
| |
| RefPtr<Clipboard> clipboard = newGeneralClipboard(policy); |
| |
| ExceptionCode ec = 0; |
| RefPtr<Event> evt = new ClipboardEvent(eventType, true, true, clipboard.get()); |
| EventTargetNodeCast(target)->dispatchEvent(evt, ec, true); |
| bool noDefaultProcessing = evt->defaultPrevented(); |
| |
| // invalidate clipboard here for security |
| clipboard->setAccessPolicy(ClipboardNumb); |
| |
| return !noDefaultProcessing; |
| } |
| |
| void Editor::applyStyle(CSSStyleDeclaration* style, EditAction editingAction) |
| { |
| switch (m_frame->selectionController()->state()) { |
| case Selection::NONE: |
| // do nothing |
| break; |
| case Selection::CARET: { |
| m_frame->computeAndSetTypingStyle(style, editingAction); |
| break; |
| } |
| case Selection::RANGE: |
| if (m_frame->document() && style) |
| applyCommand(new ApplyStyleCommand(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->selectionController()->state()) { |
| case Selection::NONE: |
| // do nothing |
| break; |
| case Selection::CARET: |
| case Selection::RANGE: |
| if (m_frame->document() && style) |
| applyCommand(new ApplyStyleCommand(m_frame->document(), style, editingAction, ApplyStyleCommand::ForceBlockProperties)); |
| break; |
| } |
| } |
| |
| void Editor::applyStyleToSelection(CSSStyleDeclaration* style, EditAction editingAction) |
| { |
| if (!style || style->length() == 0 || !canEditRichly()) |
| return; |
| |
| if (client() && client()->shouldApplyStyle(style, m_frame->selectionController()->toRange().get())) |
| applyStyle(style, editingAction); |
| } |
| |
| void Editor::applyParagraphStyleToSelection(CSSStyleDeclaration* style, EditAction editingAction) |
| { |
| if (!style || style->length() == 0 || !canEditRichly()) |
| return; |
| |
| if (client() && client()->shouldApplyStyle(style, m_frame->selectionController()->toRange().get())) |
| applyParagraphStyle(style, editingAction); |
| } |
| |
| bool Editor::clientIsEditable() const |
| { |
| return client() && client()->isEditable(); |
| } |
| |
| bool Editor::selectionStartHasStyle(CSSStyleDeclaration* style) const |
| { |
| Node* nodeToRemove; |
| RefPtr<CSSStyleDeclaration> selectionStyle = m_frame->selectionComputedStyle(nodeToRemove); |
| if (!selectionStyle) |
| return false; |
| |
| RefPtr<CSSMutableStyleDeclaration> mutableStyle = style->makeMutable(); |
| |
| bool match = true; |
| DeprecatedValueListConstIterator<CSSProperty> end; |
| for (DeprecatedValueListConstIterator<CSSProperty> it = mutableStyle->valuesIterator(); it != end; ++it) { |
| int propertyID = (*it).id(); |
| if (!equalIgnoringCase(mutableStyle->getPropertyValue(propertyID), selectionStyle->getPropertyValue(propertyID))) { |
| match = false; |
| break; |
| } |
| } |
| |
| if (nodeToRemove) { |
| ExceptionCode ec = 0; |
| nodeToRemove->remove(ec); |
| ASSERT(ec == 0); |
| } |
| |
| return match; |
| } |
| |
| void Editor::indent() |
| { |
| applyCommand(new IndentOutdentCommand(m_frame->document(), IndentOutdentCommand::Indent)); |
| } |
| |
| void Editor::outdent() |
| { |
| applyCommand(new IndentOutdentCommand(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(new Event(webkitEditableContentChangedEvent, false, false), ec, true); |
| if (endRoot && endRoot != startRoot) |
| endRoot->dispatchEvent(new Event(webkitEditableContentChangedEvent, false, false), ec, true); |
| } |
| |
| void Editor::appliedEditing(PassRefPtr<EditCommand> cmd) |
| { |
| dispatchEditableContentChangedEvents(*cmd); |
| |
| // FIXME: We shouldn't tell setSelection to clear the typing style or removed anchor here. |
| // If we didn't, we wouldn't have to save/restore the removedAnchor, and we wouldn't have to have |
| // the typing style stored in two places (the Frame and commands). |
| RefPtr<Node> anchor = removedAnchor(); |
| |
| Selection newSelection(cmd->endingSelection()); |
| // 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. |
| if (newSelection == m_frame->selectionController()->selection() || m_frame->shouldChangeSelection(newSelection)) |
| m_frame->selectionController()->setSelection(newSelection, false); |
| |
| setRemovedAnchor(anchor); |
| |
| // Now set the typing style from the command. Clear it when done. |
| // This helps make the case work where you completely delete a piece |
| // of styled text and then type a character immediately after. |
| // That new character needs to take on the style of the just-deleted text. |
| // FIXME: Improve typing style. |
| // See this bug: <rdar://problem/3769899> Implementation of typing style needs improvement |
| if (cmd->typingStyle()) { |
| m_frame->setTypingStyle(cmd->typingStyle()); |
| cmd->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) |
| { |
| dispatchEditableContentChangedEvents(*cmd); |
| |
| Selection newSelection(cmd->startingSelection()); |
| // 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. |
| if (newSelection == m_frame->selectionController()->selection() || m_frame->shouldChangeSelection(newSelection)) |
| m_frame->selectionController()->setSelection(newSelection, true); |
| |
| m_lastEditCommand = 0; |
| if (client()) |
| client()->registerCommandForRedo(cmd); |
| respondToChangedContents(newSelection); |
| } |
| |
| void Editor::reappliedEditing(PassRefPtr<EditCommand> cmd) |
| { |
| dispatchEditableContentChangedEvents(*cmd); |
| |
| Selection newSelection(cmd->endingSelection()); |
| // 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. |
| if (newSelection == m_frame->selectionController()->selection() || m_frame->shouldChangeSelection(newSelection)) |
| m_frame->selectionController()->setSelection(newSelection, true); |
| |
| m_lastEditCommand = 0; |
| if (client()) |
| client()->registerCommandForUndo(cmd); |
| respondToChangedContents(newSelection); |
| } |
| |
| // Execute command functions |
| |
| static bool execCopy(Frame* frame, Event*) |
| { |
| frame->editor()->copy(); |
| return true; |
| } |
| |
| static bool execCut(Frame* frame, Event*) |
| { |
| frame->editor()->cut(); |
| return true; |
| } |
| |
| static bool execDelete(Frame* frame, Event*) |
| { |
| frame->editor()->performDelete(); |
| return true; |
| } |
| |
| static bool execDeleteWordBackward(Frame* frame, Event*) |
| { |
| frame->editor()->deleteWithDirection(SelectionController::BACKWARD, WordGranularity, true, false); |
| return true; |
| } |
| |
| static bool execDeleteWordForward(Frame* frame, Event*) |
| { |
| frame->editor()->deleteWithDirection(SelectionController::FORWARD, WordGranularity, true, false); |
| return true; |
| } |
| |
| static bool execBackwardDelete(Frame* frame, Event*) |
| { |
| frame->editor()->deleteWithDirection(SelectionController::BACKWARD, CharacterGranularity, false, true); |
| return true; |
| } |
| |
| static bool execForwardDelete(Frame* frame, Event*) |
| { |
| frame->editor()->deleteWithDirection(SelectionController::FORWARD, CharacterGranularity, false, true); |
| return true; |
| } |
| |
| static bool execMoveBackward(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::BACKWARD, CharacterGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveBackwardAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::BACKWARD, CharacterGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveUpByPageAndModifyCaret(Frame* frame, Event*) |
| { |
| RenderObject* renderer = frame->document()->focusedNode()->renderer(); |
| if (renderer->style()->overflowY() == OSCROLL |
| || renderer->style()->overflowY() == OAUTO |
| || renderer->isTextArea()) { |
| int height = -(frame->document()->focusedNode()->renderer()->clientHeight()-PAGE_KEEP); |
| bool handledScroll = renderer->scroll(ScrollUp, ScrollByPage); |
| bool handledCaretMove = frame->selectionController()->modify(SelectionController::MOVE, height); |
| return handledScroll || handledCaretMove; |
| } |
| return false; |
| } |
| |
| static bool execMoveDown(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::FORWARD, LineGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveDownAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::FORWARD, LineGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveForward(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::FORWARD, CharacterGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveForwardAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::FORWARD, CharacterGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveDownByPageAndModifyCaret(Frame* frame, Event*) |
| { |
| RenderObject* renderer = frame->document()->focusedNode()->renderer(); |
| if (renderer->style()->overflowY() == OSCROLL |
| || renderer->style()->overflowY() == OAUTO |
| || renderer->isTextArea()) { |
| int height = frame->document()->focusedNode()->renderer()->clientHeight()-PAGE_KEEP; |
| bool handledScroll = renderer->scroll(ScrollDown, ScrollByPage); |
| bool handledCaretMove = frame->selectionController()->modify(SelectionController::MOVE, height); |
| return handledScroll || handledCaretMove; |
| } |
| return false; |
| } |
| |
| static bool execMoveLeft(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::LEFT, CharacterGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveLeftAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::LEFT, CharacterGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveRight(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::RIGHT, CharacterGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveRightAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::RIGHT, CharacterGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveToBeginningOfDocument(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::BACKWARD, DocumentBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToBeginningOfDocumentAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::BACKWARD, DocumentBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToBeginningOfSentence(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::BACKWARD, SentenceBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToBeginningOfSentenceAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::BACKWARD, SentenceBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToBeginningOfLine(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::BACKWARD, LineBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToBeginningOfLineAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::BACKWARD, LineBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToBeginningOfParagraph(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::BACKWARD, ParagraphBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToBeginningOfParagraphAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::BACKWARD, ParagraphBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToEndOfDocument(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::FORWARD, DocumentBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToEndOfDocumentAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::FORWARD, DocumentBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToEndOfSentence(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::FORWARD, SentenceBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToEndOfSentenceAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::FORWARD, SentenceBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToEndOfLine(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::FORWARD, LineBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToEndOfLineAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::FORWARD, LineBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToEndOfParagraph(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::FORWARD, ParagraphBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveToEndOfParagraphAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::FORWARD, ParagraphBoundary, true); |
| return true; |
| } |
| |
| static bool execMoveParagraphBackwardAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::BACKWARD, ParagraphGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveParagraphForwardAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::FORWARD, ParagraphGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveUp(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::BACKWARD, LineGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveUpAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::BACKWARD, LineGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveWordBackward(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::BACKWARD, WordGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveWordBackwardAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::BACKWARD, WordGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveWordForward(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::FORWARD, WordGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveWordForwardAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::FORWARD, WordGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveWordLeft(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::LEFT, WordGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveWordLeftAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::LEFT, WordGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveWordRight(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::MOVE, SelectionController::RIGHT, WordGranularity, true); |
| return true; |
| } |
| |
| static bool execMoveWordRightAndModifySelection(Frame* frame, Event*) |
| { |
| frame->selectionController()->modify(SelectionController::EXTEND, SelectionController::RIGHT, WordGranularity, true); |
| return true; |
| } |
| |
| static bool execPaste(Frame* frame, Event*) |
| { |
| frame->editor()->paste(); |
| return true; |
| } |
| |
| static bool execSelectAll(Frame* frame, Event*) |
| { |
| frame->selectionController()->selectAll(); |
| return true; |
| } |
| |
| static bool execToggleBold(Frame* frame, Event*) |
| { |
| ExceptionCode ec; |
| |
| RefPtr<CSSStyleDeclaration> style = frame->document()->createCSSStyleDeclaration(); |
| style->setProperty(CSS_PROP_FONT_WEIGHT, "bold", false, ec); |
| if (frame->editor()->selectionStartHasStyle(style.get())) |
| style->setProperty(CSS_PROP_FONT_WEIGHT, "normal", false, ec); |
| frame->editor()->applyStyleToSelection(style.get(), EditActionSetFont); |
| return true; |
| } |
| |
| static bool execToggleItalic(Frame* frame, Event*) |
| { |
| ExceptionCode ec; |
| |
| RefPtr<CSSStyleDeclaration> style = frame->document()->createCSSStyleDeclaration(); |
| style->setProperty(CSS_PROP_FONT_STYLE, "italic", false, ec); |
| if (frame->editor()->selectionStartHasStyle(style.get())) |
| style->setProperty(CSS_PROP_FONT_STYLE, "normal", false, ec); |
| frame->editor()->applyStyleToSelection(style.get(), EditActionSetFont); |
| return true; |
| } |
| |
| static bool execRedo(Frame* frame, Event*) |
| { |
| frame->editor()->redo(); |
| return true; |
| } |
| |
| static bool execUndo(Frame* frame, Event*) |
| { |
| frame->editor()->undo(); |
| return true; |
| } |
| |
| static inline Frame* targetFrame(Frame* frame, Event* evt) |
| { |
| Node* node = evt ? evt->target()->toNode() : 0; |
| if (!node) |
| return frame; |
| return node->document()->frame(); |
| } |
| |
| static bool execInsertTab(Frame* frame, Event* evt) |
| { |
| return targetFrame(frame, evt)->eventHandler()->handleTextInputEvent("\t", evt, false, false); |
| } |
| |
| static bool execInsertBacktab(Frame* frame, Event* evt) |
| { |
| return targetFrame(frame, evt)->eventHandler()->handleTextInputEvent("\t", evt, false, true); |
| } |
| |
| static bool execInsertNewline(Frame* frame, Event* evt) |
| { |
| Frame* targetFrame = WebCore::targetFrame(frame, evt); |
| return targetFrame->eventHandler()->handleTextInputEvent("\n", evt, !targetFrame->editor()->canEditRichly()); |
| } |
| |
| static bool execInsertLineBreak(Frame* frame, Event* evt) |
| { |
| return targetFrame(frame, evt)->eventHandler()->handleTextInputEvent("\n", evt, true); |
| } |
| |
| // Enabled functions |
| |
| static bool enabled(Frame*, Event*) |
| { |
| return true; |
| } |
| |
| static bool canPaste(Frame* frame, Event*) |
| { |
| return frame->editor()->canPaste(); |
| } |
| |
| static bool hasEditableSelection(Frame* frame, Event* evt) |
| { |
| if (evt) |
| return selectionForEvent(frame, evt).isContentEditable(); |
| return frame->selectionController()->isContentEditable(); |
| } |
| |
| static bool hasEditableRangeSelection(Frame* frame, Event*) |
| { |
| return frame->selectionController()->isRange() && frame->selectionController()->isContentEditable(); |
| } |
| |
| static bool hasRangeSelection(Frame* frame, Event*) |
| { |
| return frame->selectionController()->isRange(); |
| } |
| |
| static bool hasRichlyEditableSelection(Frame* frame, Event*) |
| { |
| return frame->selectionController()->isCaretOrRange() && frame->selectionController()->isContentRichlyEditable(); |
| } |
| |
| static bool canRedo(Frame* frame, Event*) |
| { |
| return frame->editor()->canRedo(); |
| } |
| |
| static bool canUndo(Frame* frame, Event*) |
| { |
| return frame->editor()->canUndo(); |
| } |
| |
| struct Command { |
| bool (*enabled)(Frame*, Event*); |
| bool (*exec)(Frame*, Event*); |
| }; |
| |
| typedef HashMap<RefPtr<AtomicStringImpl>, const Command*> CommandMap; |
| |
| static CommandMap* createCommandMap() |
| { |
| struct CommandEntry { const char* name; Command command; }; |
| |
| static const CommandEntry commands[] = { |
| { "BackwardDelete", { hasEditableSelection, execBackwardDelete } }, |
| { "Copy", { hasRangeSelection, execCopy } }, |
| { "Cut", { hasEditableRangeSelection, execCut } }, |
| { "Delete", { hasEditableSelection, execDelete } }, |
| { "DeleteWordBackward", { hasEditableSelection, execDeleteWordBackward } }, |
| { "DeleteWordForward", { hasEditableSelection, execDeleteWordForward} }, |
| { "ForwardDelete", { hasEditableSelection, execForwardDelete } }, |
| { "InsertBacktab", { hasEditableSelection, execInsertBacktab } }, |
| { "InsertTab", { hasEditableSelection, execInsertTab } }, |
| { "InsertLineBreak", { hasEditableSelection, execInsertLineBreak } }, |
| { "InsertNewline", { hasEditableSelection, execInsertNewline } }, |
| { "MoveBackward", { hasEditableSelection, execMoveBackward } }, |
| { "MoveBackwardAndModifySelection", { hasEditableSelection, execMoveBackwardAndModifySelection } }, |
| { "MoveUpByPageAndModifyCaret", { hasEditableSelection, execMoveUpByPageAndModifyCaret } }, |
| { "MoveDown", { hasEditableSelection, execMoveDown } }, |
| { "MoveDownAndModifySelection", { hasEditableSelection, execMoveDownAndModifySelection } }, |
| { "MoveForward", { hasEditableSelection, execMoveForward } }, |
| { "MoveForwardAndModifySelection", { hasEditableSelection, execMoveForwardAndModifySelection } }, |
| { "MoveDownByPageAndModifyCaret", { hasEditableSelection, execMoveDownByPageAndModifyCaret } }, |
| { "MoveLeft", { hasEditableSelection, execMoveLeft } }, |
| { "MoveLeftAndModifySelection", { hasEditableSelection, execMoveLeftAndModifySelection } }, |
| { "MoveRight", { hasEditableSelection, execMoveRight } }, |
| { "MoveRightAndModifySelection", { hasEditableSelection, execMoveRightAndModifySelection } }, |
| { "MoveToBeginningOfDocument", { hasEditableSelection, execMoveToBeginningOfDocument } }, |
| { "MoveToBeginningOfDocumentAndModifySelection", { hasEditableSelection, execMoveToBeginningOfDocumentAndModifySelection } }, |
| { "MoveToBeginningOfSentence", { hasEditableSelection, execMoveToBeginningOfSentence } }, |
| { "MoveToBeginningOfSentenceAndModifySelection", { hasEditableSelection, execMoveToBeginningOfSentenceAndModifySelection } }, |
| { "MoveToBeginningOfLine", { hasEditableSelection, execMoveToBeginningOfLine } }, |
| { "MoveToBeginningOfLineAndModifySelection", { hasEditableSelection, execMoveToBeginningOfLineAndModifySelection } }, |
| { "MoveToBeginningOfParagraph", { hasEditableSelection, execMoveToBeginningOfParagraph } }, |
| { "MoveToBeginningOfParagraphAndModifySelection", { hasEditableSelection, execMoveToBeginningOfParagraphAndModifySelection } }, |
| { "MoveToEndOfDocument", { hasEditableSelection, execMoveToEndOfDocument } }, |
| { "MoveToEndOfDocumentAndModifySelection", { hasEditableSelection, execMoveToEndOfDocumentAndModifySelection } }, |
| { "MoveToEndOfSentence", { hasEditableSelection, execMoveToEndOfSentence } }, |
| { "MoveToEndOfSentenceAndModifySelection", { hasEditableSelection, execMoveToEndOfSentenceAndModifySelection } }, |
| { "MoveToEndOfLine", { hasEditableSelection, execMoveToEndOfLine } }, |
| { "MoveToEndOfLineAndModifySelection", { hasEditableSelection, execMoveToEndOfLineAndModifySelection } }, |
| { "MoveToEndOfParagraph", { hasEditableSelection, execMoveToEndOfParagraph } }, |
| { "MoveToEndOfParagraphAndModifySelection", { hasEditableSelection, execMoveToEndOfParagraphAndModifySelection } }, |
| { "MoveParagraphBackwardAndModifySelection", { hasEditableSelection, execMoveParagraphBackwardAndModifySelection } }, |
| { "MoveParagraphForwardAndModifySelection", { hasEditableSelection, execMoveParagraphForwardAndModifySelection } }, |
| { "MoveUp", { hasEditableSelection, execMoveUp } }, |
| { "MoveUpAndModifySelection", { hasEditableSelection, execMoveUpAndModifySelection } }, |
| { "MoveWordBackward", { hasEditableSelection, execMoveWordBackward } }, |
| { "MoveWordBackwardAndModifySelection", { hasEditableSelection, execMoveWordBackwardAndModifySelection } }, |
| { "MoveWordForward", { hasEditableSelection, execMoveWordForward } }, |
| { "MoveWordForwardAndModifySelection", { hasEditableSelection, execMoveWordForwardAndModifySelection } }, |
| { "MoveWordLeft", { hasEditableSelection, execMoveWordLeft } }, |
| { "MoveWordLeftAndModifySelection", { hasEditableSelection, execMoveWordLeftAndModifySelection } }, |
| { "MoveWordRight", { hasEditableSelection, execMoveWordRight } }, |
| { "MoveWordRightAndModifySelection", { hasEditableSelection, execMoveWordRightAndModifySelection } }, |
| { "Paste", { canPaste, execPaste } }, |
| { "Redo", { canRedo, execRedo } }, |
| { "SelectAll", { enabled, execSelectAll } }, |
| { "ToggleBold", { hasRichlyEditableSelection, execToggleBold } }, |
| { "ToggleItalic", { hasRichlyEditableSelection, execToggleItalic } }, |
| { "Undo", { canUndo, execUndo } } |
| }; |
| |
| CommandMap* commandMap = new CommandMap; |
| |
| const unsigned numCommands = sizeof(commands) / sizeof(commands[0]); |
| for (unsigned i = 0; i < numCommands; i++) |
| commandMap->set(AtomicString(commands[i].name).impl(), &commands[i].command); |
| |
| return commandMap; |
| } |
| |
| // ============================================================================= |
| // |
| // public editing commands |
| // |
| // ============================================================================= |
| |
| Editor::Editor(Frame* frame) |
| : m_frame(frame) |
| , m_deleteButtonController(new DeleteButtonController(frame)) |
| , m_ignoreCompositionSelectionChange(false) |
| { |
| } |
| |
| Editor::~Editor() |
| { |
| } |
| |
| void Editor::clear() |
| { |
| m_compositionNode = 0; |
| m_customCompositionUnderlines.clear(); |
| } |
| |
| bool Editor::execCommand(const AtomicString& command, Event* triggeringEvent) |
| { |
| if (!m_frame->document()) |
| return false; |
| |
| static CommandMap* commandMap; |
| if (!commandMap) |
| commandMap = createCommandMap(); |
| |
| const Command* c = commandMap->get(command.impl()); |
| if (!c) |
| return false; |
| |
| bool handled = false; |
| |
| if (c->enabled(m_frame, triggeringEvent)) { |
| m_frame->document()->updateLayoutIgnorePendingStylesheets(); |
| handled = c->exec(m_frame, triggeringEvent); |
| } |
| |
| return handled; |
| } |
| |
| 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; |
| |
| Selection selection = selectionForEvent(m_frame, triggeringEvent); |
| if (!selection.isContentEditable()) |
| return false; |
| RefPtr<Range> range = selection.toRange(); |
| |
| 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 = selectionForEvent(m_frame, 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(RenderLayer::gAlignToEdgeIfNeeded); |
| } |
| } |
| |
| return true; |
| } |
| |
| bool Editor::insertLineBreak() |
| { |
| if (!canEdit()) |
| return false; |
| |
| if (!shouldInsertText("\n", m_frame->selectionController()->toRange().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->selectionController()->toRange().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())) { |
| Pasteboard::generalPasteboard()->writeSelection(selection.get(), canSmartCopyOrDelete(), m_frame); |
| didWriteSelectionToPasteboard(); |
| deleteSelectionWithSmartDelete(); |
| } |
| } |
| |
| void Editor::copy() |
| { |
| if (tryDHTMLCopy()) |
| return; // DHTML did the whole operation |
| if (!canCopy()) { |
| systemBeep(); |
| return; |
| } |
| |
| Document* document = m_frame->document(); |
| if (Node* node = imageNodeFromImageDocument(document)) |
| Pasteboard::generalPasteboard()->writeImage(node, document->URL(), document->title()); |
| else |
| Pasteboard::generalPasteboard()->writeSelection(selectedRange().get(), canSmartCopyOrDelete(), m_frame); |
| |
| didWriteSelectionToPasteboard(); |
| } |
| |
| void Editor::paste() |
| { |
| ASSERT(m_frame->document()); |
| DocLoader* loader = m_frame->document()->docLoader(); |
| #if PLATFORM(MAC) |
| // using the platform independent code below requires moving all of |
| // WEBHTMLView: _documentFragmentFromPasteboard over to PasteboardMac. |
| loader->setAllowStaleResources(true); |
| m_frame->issuePasteCommand(); |
| loader->setAllowStaleResources(false); |
| #else |
| if (tryDHTMLPaste()) |
| return; // DHTML did the whole operation |
| if (!canPaste()) |
| return; |
| loader->setAllowStaleResources(true); |
| if (m_frame->selectionController()->isContentRichlyEditable()) |
| pasteWithPasteboard(Pasteboard::generalPasteboard(), true); |
| else |
| pasteAsPlainTextWithPasteboard(Pasteboard::generalPasteboard()); |
| loader->setAllowStaleResources(false); |
| #endif |
| } |
| |
| void Editor::pasteAsPlainText() |
| { |
| if (!canPaste()) |
| return; |
| pasteAsPlainTextWithPasteboard(Pasteboard::generalPasteboard()); |
| } |
| |
| void Editor::performDelete() |
| { |
| if (!canDelete()) { |
| systemBeep(); |
| return; |
| } |
| deleteRange(selectedRange().get(), true, false, true, deleteSelectionAction, CharacterGranularity); |
| } |
| |
| 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; |
| } |
| |
| 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() |
| { |
| execToggleBold(frame(), 0); |
| } |
| |
| void Editor::toggleUnderline() |
| { |
| ExceptionCode ec = 0; |
| |
| RefPtr<CSSStyleDeclaration> style = frame()->document()->createCSSStyleDeclaration(); |
| style->setProperty(CSS_PROP__WEBKIT_TEXT_DECORATIONS_IN_EFFECT, "underline", false, ec); |
| if (selectionStartHasStyle(style.get())) |
| style->setProperty(CSS_PROP__WEBKIT_TEXT_DECORATIONS_IN_EFFECT, "none", false, ec); |
| applyStyleToSelection(style.get(), EditActionUnderline); |
| } |
| |
| void Editor::setBaseWritingDirection(String direction) |
| { |
| ExceptionCode ec = 0; |
| |
| RefPtr<CSSStyleDeclaration> style = frame()->document()->createCSSStyleDeclaration(); |
| style->setProperty(CSS_PROP_DIRECTION, direction, false, ec); |
| applyParagraphStyleToSelection(style.get(), EditActionSetWritingDirection); |
| } |
| |
| void Editor::selectComposition() |
| { |
| RefPtr<Range> range = compositionRange(); |
| if (!range) |
| return; |
| ExceptionCode ec = 0; |
| m_frame->selectionController()->setSelectedRange(range.get(), DOWNSTREAM, false, ec); |
| } |
| |
| 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); |
| |
| Selection oldSelection = m_frame->selectionController()->selection(); |
| |
| selectComposition(); |
| |
| if (m_frame->selectionController()->isNone()) { |
| setIgnoreCompositionSelectionChange(false); |
| return; |
| } |
| |
| deleteSelectionWithSmartDelete(false); |
| |
| m_compositionNode = 0; |
| m_customCompositionUnderlines.clear(); |
| |
| insertText(text, 0); |
| |
| if (preserveSelection) |
| m_frame->selectionController()->setSelection(oldSelection, false, false); |
| |
| setIgnoreCompositionSelectionChange(false); |
| } |
| |
| void Editor::setComposition(const String& text, const Vector<CompositionUnderline>& underlines, unsigned selectionStart, unsigned selectionEnd) |
| { |
| setIgnoreCompositionSelectionChange(true); |
| |
| selectComposition(); |
| |
| if (m_frame->selectionController()->isNone()) { |
| setIgnoreCompositionSelectionChange(false); |
| return; |
| } |
| |
| deleteSelectionWithSmartDelete(false); |
| |
| m_compositionNode = 0; |
| m_customCompositionUnderlines.clear(); |
| |
| if (!text.isEmpty()) { |
| TypingCommand::insertText(m_frame->document(), text, true, true); |
| |
| Node* baseNode = m_frame->selectionController()->baseNode(); |
| unsigned baseOffset = m_frame->selectionController()->base().offset(); |
| Node* extentNode = m_frame->selectionController()->extentNode(); |
| unsigned extentOffset = m_frame->selectionController()->extent().offset(); |
| |
| 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 = new Range(baseNode->document(), baseNode, start, baseNode, end); |
| ExceptionCode ec = 0; |
| m_frame->selectionController()->setSelectedRange(selectedRange.get(), DOWNSTREAM, false, ec); |
| } |
| } |
| |
| setIgnoreCompositionSelectionChange(false); |
| } |
| |
| void Editor::ignoreSpelling() |
| { |
| if (!client()) |
| return; |
| |
| String text = frame()->selectedText(); |
| ASSERT(text.length() != 0); |
| client()->ignoreWordInSpellDocument(text); |
| } |
| |
| void Editor::learnSpelling() |
| { |
| if (!client()) |
| return; |
| |
| String text = frame()->selectedText(); |
| ASSERT(text.length() != 0); |
| client()->learnWord(text); |
| } |
| |
| static String findFirstMisspellingInRange(EditorClient* client, Range* searchRange, int& firstMisspellingOffset, bool markAll) |
| { |
| 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 == 0 || misspellingLocation >= 0); |
| ASSERT(misspellingLocation < len); |
| ASSERT(misspellingLength <= len); |
| ASSERT(misspellingLocation + misspellingLength <= len); |
| |
| if (misspellingLocation >= 0 && misspellingLength > 0 && misspellingLocation < len && misspellingLength <= len && misspellingLocation + misspellingLength <= len) { |
| |
| // Remember first-encountered misspelling and its offset |
| if (!firstMisspelling) { |
| firstMisspellingOffset = currentChunkOffset + misspellingLocation; |
| firstMisspelling = String(chars + misspellingLocation, misspellingLength); |
| } |
| |
| // Mark this instance if we're marking all instances. Otherwise bail out because we found the first one. |
| if (!markAll) |
| break; |
| |
| // Compute range of misspelled word |
| RefPtr<Range> misspellingRange = TextIterator::subrange(searchRange, currentChunkOffset + misspellingLocation, misspellingLength); |
| |
| // Store marker for misspelled word |
| ExceptionCode ec = 0; |
| misspellingRange->startContainer(ec)->document()->addMarker(misspellingRange.get(), DocumentMarker::Spelling); |
| ASSERT(ec == 0); |
| } |
| } |
| |
| 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 = new Range(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 == 0); |
| } |
| |
| // 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 == 0) { |
| 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 */ |
| |
| 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. |
| Selection selection(frame()->selectionController()->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; |
| |
| spellingSearchRange->setStart(position.node(), position.offset(), ec); |
| startedWithSelection = false; // won't need to wrap |
| } |
| |
| // topNode defines the whole range we want to operate on |
| Node* topNode = highestEditableRoot(position); |
| spellingSearchRange->setEnd(topNode, maxDeepOffset(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; |
| String misspelledWord = findFirstMisspellingInRange(client(), spellingSearchRange.get(), misspellingOffset, false); |
| |
| 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 |
| |
| // 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); |
| |
| misspelledWord = findFirstMisspellingInRange(client(), spellingSearchRange.get(), misspellingOffset, false); |
| |
| #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 |
| } |
| |
| 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()->selectionController()->setSelection(Selection(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()->selectionController()->setSelection(Selection(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 == 0) |
| 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 != 0) |
| 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()->selectionController()->toRange().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()->selectionController()->toRange().get(), guesses); |
| return guesses; |
| #endif |
| } |
| |
| Vector<String> Editor::guessesForMisspelledSelection() |
| { |
| String selectedString = frame()->selectedText(); |
| ASSERT(selectedString.length() != 0); |
| |
| Vector<String> guesses; |
| if (client()) |
| client()->getGuessesForWord(selectedString, guesses); |
| return guesses; |
| } |
| |
| 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 (!isContinuousSpellCheckingEnabled()) |
| return; |
| |
| // Check spelling of one word |
| markMisspellings(Selection(startOfWord(p, LeftWordIfOnBoundary), endOfWord(p, RightWordIfOnBoundary))); |
| |
| if (!isGrammarCheckingEnabled()) |
| return; |
| |
| // Check grammar of entire sentence |
| markBadGrammar(Selection(startOfSentence(p), endOfSentence(p))); |
| } |
| |
| static void markAllMisspellingsInRange(EditorClient* client, Range* searchRange) |
| { |
| // 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); |
| } |
| |
| #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 Selection& selection, bool checkSpelling) |
| { |
| // 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.toRange()); |
| if (!searchRange || searchRange->isDetached()) |
| return; |
| |
| // If we're not in an editable node, bail. |
| int exception = 0; |
| Node *editableNode = searchRange->startContainer(exception); |
| if (!editableNode->isContentEditable()) |
| return; |
| |
| // Get the spell checker if it is available |
| if (!editor->client()) |
| return; |
| |
| if (checkSpelling) |
| markAllMisspellingsInRange(editor->client(), searchRange.get()); |
| else { |
| #ifdef BUILDING_ON_TIGER |
| ASSERT_NOT_REACHED(); |
| #else |
| if (editor->isGrammarCheckingEnabled()) |
| markAllBadGrammarInRange(editor->client(), searchRange.get()); |
| #endif |
| } |
| } |
| |
| void Editor::markMisspellings(const Selection& selection) |
| { |
| markMisspellingsOrBadGrammar(this, selection, true); |
| } |
| |
| void Editor::markBadGrammar(const Selection& selection) |
| { |
| #ifndef BUILDING_ON_TIGER |
| markMisspellingsOrBadGrammar(this, selection, false); |
| #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); |
| Selection selection(frame->visiblePositionForPoint(framePoint)); |
| return avoidIntersectionWithNode(selection.toRange().get(), deleteButtonController() ? deleteButtonController()->containerElement() : 0); |
| } |
| |
| void Editor::revealSelectionAfterEditingOperation() |
| { |
| if (m_ignoreCompositionSelectionChange) |
| return; |
| |
| m_frame->revealSelection(RenderLayer::gAlignToEdgeIfNeeded); |
| } |
| |
| 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 new Range(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->selectionController()->start(); |
| if (start.node() != m_compositionNode) |
| return false; |
| Position end = m_frame->selectionController()->end(); |
| if (end.node() != m_compositionNode) |
| return false; |
| |
| if (static_cast<unsigned>(start.offset()) < m_compositionStart) |
| return false; |
| if (static_cast<unsigned>(end.offset()) > m_compositionEnd) |
| return false; |
| |
| selectionStart = start.offset() - m_compositionStart; |
| selectionEnd = start.offset() - m_compositionEnd; |
| return true; |
| } |
| |
| } // namespace WebCore |