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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 "core/editing/SplitElementCommand.h"
#include "bindings/v8/ExceptionState.h"
#include "bindings/v8/ExceptionStatePlaceholder.h"
#include "core/HTMLNames.h"
#include "core/dom/Element.h"
#include "wtf/Assertions.h"
namespace WebCore {
SplitElementCommand::SplitElementCommand(PassRefPtrWillBeRawPtr<Element> element, PassRefPtrWillBeRawPtr<Node> atChild)
: SimpleEditCommand(element->document())
, m_element2(element)
, m_atChild(atChild)
{
ASSERT(m_element2);
ASSERT(m_atChild);
ASSERT(m_atChild->parentNode() == m_element2);
}
void SplitElementCommand::executeApply()
{
if (m_atChild->parentNode() != m_element2)
return;
WillBeHeapVector<RefPtrWillBeMember<Node> > children;
for (Node* node = m_element2->firstChild(); node != m_atChild; node = node->nextSibling())
children.append(node);
TrackExceptionState exceptionState;
ContainerNode* parent = m_element2->parentNode();
if (!parent || !parent->rendererIsEditable())
return;
parent->insertBefore(m_element1.get(), m_element2.get(), exceptionState);
if (exceptionState.hadException())
return;
// Delete id attribute from the second element because the same id cannot be used for more than one element
m_element2->removeAttribute(HTMLNames::idAttr);
size_t size = children.size();
for (size_t i = 0; i < size; ++i)
m_element1->appendChild(children[i], exceptionState);
}
void SplitElementCommand::doApply()
{
m_element1 = m_element2->cloneElementWithoutChildren();
executeApply();
}
void SplitElementCommand::doUnapply()
{
if (!m_element1 || !m_element1->rendererIsEditable() || !m_element2->rendererIsEditable())
return;
WillBeHeapVector<RefPtrWillBeMember<Node> > children;
for (Node* node = m_element1->firstChild(); node; node = node->nextSibling())
children.append(node);
RefPtrWillBeRawPtr<Node> refChild = m_element2->firstChild();
size_t size = children.size();
for (size_t i = 0; i < size; ++i)
m_element2->insertBefore(children[i].get(), refChild.get(), IGNORE_EXCEPTION);
// Recover the id attribute of the original element.
const AtomicString& id = m_element1->getAttribute(HTMLNames::idAttr);
if (!id.isNull())
m_element2->setAttribute(HTMLNames::idAttr, id);
m_element1->remove(IGNORE_EXCEPTION);
}
void SplitElementCommand::doReapply()
{
if (!m_element1)
return;
executeApply();
}
void SplitElementCommand::trace(Visitor* visitor)
{
visitor->trace(m_element1);
visitor->trace(m_element2);
visitor->trace(m_atChild);
SimpleEditCommand::trace(visitor);
}
} // namespace WebCore
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