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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 "MergeIdenticalElementsCommand.h"
#include "Element.h"
namespace WebCore {
MergeIdenticalElementsCommand::MergeIdenticalElementsCommand(Ref<Element>&& first, Ref<Element>&& second)
: SimpleEditCommand(first->document())
, m_element1(WTFMove(first))
, m_element2(WTFMove(second))
{
ASSERT(m_element1->nextSibling() == m_element2.ptr());
}
void MergeIdenticalElementsCommand::doApply()
{
Ref element1 = protectedElement1();
Ref element2 = protectedElement2();
if (element1->nextSibling() != element2.ptr() || !element1->hasEditableStyle() || !element2->hasEditableStyle())
return;
m_atChild = element2->firstChild();
Vector<Ref<Node>> children;
for (Node* child = element1->firstChild(); child; child = child->nextSibling())
children.append(*child);
for (auto& child : children)
element2->insertBefore(child, m_atChild.copyRef());
element1->remove();
}
void MergeIdenticalElementsCommand::doUnapply()
{
RefPtr<Node> atChild = WTFMove(m_atChild);
Ref element2 = protectedElement2();
RefPtr parent = element2->parentNode();
if (!parent || !parent->hasEditableStyle())
return;
Ref element1 = protectedElement1();
if (parent->insertBefore(element1, element2.copyRef()).hasException())
return;
Vector<Ref<Node>> children;
for (Node* child = element2->firstChild(); child && child != atChild; child = child->nextSibling())
children.append(*child);
for (auto& child : children)
element1->appendChild(child);
}
#ifndef NDEBUG
void MergeIdenticalElementsCommand::getNodesInCommand(NodeSet& nodes)
{
addNodeAndDescendants(m_element1.ptr(), nodes);
addNodeAndDescendants(m_element2.ptr(), nodes);
}
#endif
} // namespace WebCore
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