InsertNodeBeforeCommand.cpp   [plain text]

/*
 * Copyright (C) 2005 Apple Computer, Inc.  All rights reserved.
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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 "htmlediting.h"
#include "InsertNodeBeforeCommand.h"

namespace WebCore {

InsertNodeBeforeCommand::InsertNodeBeforeCommand(PassRefPtr<Node> insertChild, Node* refChild)
    : EditCommand(refChild->document()), m_insertChild(insertChild), m_refChild(refChild)
{
    ASSERT(m_insertChild);
    ASSERT(m_refChild);
}

void InsertNodeBeforeCommand::doApply()
{
    ASSERT(m_insertChild);
    ASSERT(m_refChild);
    ASSERT(m_refChild->parentNode());
    // If the child to insert is already in a tree, inserting 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_insertChild->parent());
    ASSERT(enclosingNodeOfType(Position(m_refChild->parentNode(), 0), &isContentEditable) || !m_refChild->parentNode()->attached());

    ExceptionCode ec = 0;
    m_refChild->parentNode()->insertBefore(m_insertChild.get(), m_refChild.get(), ec);
    ASSERT(ec == 0);
}

void InsertNodeBeforeCommand::doUnapply()
{
    ASSERT(m_insertChild);
    ASSERT(m_refChild);
    ASSERT(m_refChild->parentNode());

    ExceptionCode ec = 0;
    m_refChild->parentNode()->removeChild(m_insertChild.get(), ec);
    ASSERT(ec == 0);
}

}