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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 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 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 "SplitElementCommand.h"
#include "CompositeEditCommand.h"
#include "Element.h"
#include "ElementInlines.h"
#include "HTMLNames.h"
#include <wtf/Assertions.h>
namespace WebCore {
SplitElementCommand::SplitElementCommand(Ref<Element>&& element, Ref<Node>&& atChild)
: SimpleEditCommand(element->document())
, m_element2(WTFMove(element))
, m_atChild(WTFMove(atChild))
{
ASSERT(m_atChild->parentNode() == m_element2.ptr());
}
void SplitElementCommand::executeApply()
{
if (m_atChild->parentNode() != m_element2.ptr())
return;
Vector<Ref<Node>> children;
for (Node* node = m_element2->firstChild(); node != m_atChild.ptr(); node = node->nextSibling())
children.append(*node);
auto* parent = m_element2->parentNode();
if (!parent || !parent->hasEditableStyle())
return;
if (parent->insertBefore(*m_element1, m_element2.ptr()).hasException())
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);
for (auto& child : children)
m_element1->appendChild(child);
}
void SplitElementCommand::doApply()
{
m_element1 = m_element2->cloneElementWithoutChildren(document());
executeApply();
}
void SplitElementCommand::doUnapply()
{
if (!m_element1 || !m_element1->hasEditableStyle() || !m_element2->hasEditableStyle())
return;
Vector<Ref<Node>> children;
for (Node* node = m_element1->firstChild(); node; node = node->nextSibling())
children.append(*node);
RefPtr<Node> refChild = m_element2->firstChild();
for (auto& child : children)
m_element2->insertBefore(child, refChild.get());
// Recover the id attribute of the original element.
const AtomString& id = m_element1->getIdAttribute();
if (!id.isNull())
m_element2->setIdAttribute(id);
m_element1->remove();
}
void SplitElementCommand::doReapply()
{
if (!m_element1)
return;
executeApply();
}
#ifndef NDEBUG
void SplitElementCommand::getNodesInCommand(HashSet<Ref<Node>>& nodes)
{
addNodeAndDescendants(m_element1.get(), nodes);
addNodeAndDescendants(m_element2.ptr(), nodes);
addNodeAndDescendants(m_atChild.ptr(), nodes);
}
#endif
} // namespace WebCore
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