WebCore/editing/AppendNodeCommand.cpp

/*
 * Copyright (C) 2005, 2006 Apple Computer, Inc.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 *
 * 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
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#include "config.h"
#include "AppendNodeCommand.h"
#include "htmlediting.h"

namespace WebCore {

AppendNodeCommand::AppendNodeCommand(Node* parentNode, PassRefPtr<Node> childToAppend)
    : EditCommand(parentNode->document()), m_parentNode(parentNode), m_childToAppend(childToAppend)
{
    ASSERT(m_childToAppend);
    ASSERT(m_parentNode);
}

void AppendNodeCommand::doApply()
{
    ASSERT(m_childToAppend);
    ASSERT(m_parentNode);
    // If the child to append is already in a tree, appending it will remove it from it's old location
    // in an non-undoable way.  We might eventually find it useful to do an undoable remove in this case.
    ASSERT(!m_childToAppend->parent());
    ASSERT(enclosingNodeOfType(Position(m_parentNode.get(), 0), &isContentEditable) || !m_parentNode->attached());

    ExceptionCode ec = 0;
    m_parentNode->appendChild(m_childToAppend.get(), ec);
    ASSERT(ec == 0);
}

void AppendNodeCommand::doUnapply()
{
    ASSERT(m_childToAppend);
    ASSERT(m_parentNode);

    ExceptionCode ec = 0;
    m_parentNode->removeChild(m_childToAppend.get(), ec);
    ASSERT(ec == 0);
}

} // namespace WebCore