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/*
* Copyright (C) 2005, 2008 Apple Inc. All rights reserved.
*
* 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 "MergeIdenticalElementsCommand.h"
#include "Element.h"
namespace WebCore {
MergeIdenticalElementsCommand::MergeIdenticalElementsCommand(PassRefPtr<Element> first, PassRefPtr<Element> second)
: SimpleEditCommand(first->document())
, m_element1(first)
, m_element2(second)
{
ASSERT(m_element1);
ASSERT(m_element2);
ASSERT(m_element1->nextSibling() == m_element2);
}
void MergeIdenticalElementsCommand::doApply()
{
if (m_element1->nextSibling() != m_element2 || !m_element1->rendererIsEditable() || !m_element2->rendererIsEditable())
return;
m_atChild = m_element2->firstChild();
Vector<RefPtr<Node> > children;
for (Node* child = m_element1->firstChild(); child; child = child->nextSibling())
children.append(child);
size_t size = children.size();
for (size_t i = 0; i < size; ++i)
m_element2->insertBefore(children[i].release(), m_atChild.get(), IGNORE_EXCEPTION);
m_element1->remove(IGNORE_EXCEPTION);
}
void MergeIdenticalElementsCommand::doUnapply()
{
ASSERT(m_element1);
ASSERT(m_element2);
RefPtr<Node> atChild = m_atChild.release();
ContainerNode* parent = m_element2->parentNode();
if (!parent || !parent->rendererIsEditable())
return;
ExceptionCode ec = 0;
parent->insertBefore(m_element1.get(), m_element2.get(), ec);
if (ec)
return;
Vector<RefPtr<Node> > children;
for (Node* child = m_element2->firstChild(); child && child != atChild; child = child->nextSibling())
children.append(child);
size_t size = children.size();
for (size_t i = 0; i < size; ++i)
m_element1->appendChild(children[i].release(), ec);
}
#ifndef NDEBUG
void MergeIdenticalElementsCommand::getNodesInCommand(HashSet<Node*>& nodes)
{
addNodeAndDescendants(m_element1.get(), nodes);
addNodeAndDescendants(m_element2.get(), nodes);
}
#endif
} // namespace WebCore
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