86 lines
2.9 KiB
C++
86 lines
2.9 KiB
C++
/*
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* Copyright (C) 2005, 2008 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "MergeIdenticalElementsCommand.h"
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#include "Element.h"
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namespace WebCore {
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MergeIdenticalElementsCommand::MergeIdenticalElementsCommand(Ref<Element>&& first, Ref<Element>&& second)
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: SimpleEditCommand(first->document())
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, m_element1(WTFMove(first))
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, m_element2(WTFMove(second))
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{
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ASSERT(m_element1->nextSibling() == m_element2.ptr());
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}
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void MergeIdenticalElementsCommand::doApply()
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{
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if (m_element1->nextSibling() != m_element2.ptr() || !m_element1->hasEditableStyle() || !m_element2->hasEditableStyle())
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return;
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m_atChild = m_element2->firstChild();
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Vector<Ref<Node>> children;
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for (Node* child = m_element1->firstChild(); child; child = child->nextSibling())
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children.append(*child);
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for (auto& child : children)
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m_element2->insertBefore(child, m_atChild.get());
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m_element1->remove();
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}
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void MergeIdenticalElementsCommand::doUnapply()
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{
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RefPtr<Node> atChild = WTFMove(m_atChild);
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auto* parent = m_element2->parentNode();
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if (!parent || !parent->hasEditableStyle())
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return;
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if (parent->insertBefore(m_element1, m_element2.ptr()).hasException())
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return;
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Vector<Ref<Node>> children;
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for (Node* child = m_element2->firstChild(); child && child != atChild; child = child->nextSibling())
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children.append(*child);
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for (auto& child : children)
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m_element1->appendChild(child);
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}
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#ifndef NDEBUG
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void MergeIdenticalElementsCommand::getNodesInCommand(HashSet<Ref<Node>>& nodes)
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{
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addNodeAndDescendants(m_element1.ptr(), nodes);
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addNodeAndDescendants(m_element2.ptr(), nodes);
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}
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#endif
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} // namespace WebCore
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