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85 lines
3.4 KiB
C++
85 lines
3.4 KiB
C++
/*
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* Copyright (C) 2012 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "sky/engine/core/editing/TextInsertionBaseCommand.h"
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#include "sky/engine/bindings/exception_state_placeholder.h"
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#include "sky/engine/core/dom/Element.h"
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#include "sky/engine/core/dom/Node.h"
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#include "sky/engine/core/editing/FrameSelection.h"
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#include "sky/engine/core/events/BeforeTextInsertedEvent.h"
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#include "sky/engine/core/frame/LocalFrame.h"
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namespace blink {
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TextInsertionBaseCommand::TextInsertionBaseCommand(Document& document)
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: CompositeEditCommand(document)
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{
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}
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void TextInsertionBaseCommand::applyTextInsertionCommand(LocalFrame* frame, PassRefPtr<TextInsertionBaseCommand> command, const VisibleSelection& selectionForInsertion, const VisibleSelection& endingSelection)
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{
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bool changeSelection = selectionForInsertion != endingSelection;
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if (changeSelection) {
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command->setStartingSelection(selectionForInsertion);
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command->setEndingSelection(selectionForInsertion);
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}
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command->apply();
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if (changeSelection) {
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command->setEndingSelection(endingSelection);
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frame->selection().setSelection(endingSelection);
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}
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}
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String dispatchBeforeTextInsertedEvent(const String& text, const VisibleSelection& selectionForInsertion, bool insertionIsForUpdatingComposition)
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{
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if (insertionIsForUpdatingComposition)
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return text;
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String newText = text;
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if (Node* startNode = selectionForInsertion.start().containerNode()) {
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if (startNode->rootEditableElement()) {
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// Send BeforeTextInsertedEvent. The event handler will update text if necessary.
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RefPtr<BeforeTextInsertedEvent> evt = BeforeTextInsertedEvent::create(text);
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startNode->rootEditableElement()->dispatchEvent(evt, IGNORE_EXCEPTION);
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newText = evt->text();
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}
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}
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return newText;
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}
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bool canAppendNewLineFeedToSelection(const VisibleSelection& selection)
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{
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Element* element = selection.rootEditableElement();
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if (!element)
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return false;
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RefPtr<BeforeTextInsertedEvent> event = BeforeTextInsertedEvent::create(String("\n"));
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element->dispatchEvent(event, IGNORE_EXCEPTION);
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return event->text().length();
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}
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}
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