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Viewing changes to Source/WebCore/editing/TextInsertionBaseCommand.cpp

  • Committer: Package Import Robot
  • Author(s): Jonathan Riddell
  • Date: 2013-02-18 14:24:18 UTC
  • Revision ID: package-import@ubuntu.com-20130218142418-eon0jmjg3nj438uy
Tags: upstream-2.3
Import upstream version 2.3

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Source/WebCore/editing/TextInsertionBaseCommand.cpp
 
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/*
 
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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 "config.h"
 
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#include "TextInsertionBaseCommand.h"
 
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#include "BeforeTextInsertedEvent.h"
 
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#include "Document.h"
 
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#include "Element.h"
 
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#include "Frame.h"
 
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#include "Node.h"
 
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namespace WebCore {
 
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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(Frame* 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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    applyCommand(command);
 
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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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            ExceptionCode ec = 0;
 
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            RefPtr<BeforeTextInsertedEvent> evt = BeforeTextInsertedEvent::create(text);
 
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            startNode->rootEditableElement()->dispatchEvent(evt, ec);
 
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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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    Node* node = selection.rootEditableElement();
 
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    if (!node)
 
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        return false;
 
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    RefPtr<BeforeTextInsertedEvent> event = BeforeTextInsertedEvent::create(String("\n"));
 
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    ExceptionCode ec = 0;
 
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    node->dispatchEvent(event, ec);
 
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    return event->text().length();
 
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}
 
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}