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/*
* Copyright (C) 2005, 2008, 2015 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 "DeleteFromTextNodeCommand.h"
#include "CompositeEditCommand.h"
#include "Document.h"
#include "Editing.h"
#include "Text.h"
namespace WebCore {
DeleteFromTextNodeCommand::DeleteFromTextNodeCommand(Ref<Text>&& node, unsigned offset, unsigned count, EditAction editingAction)
: SimpleEditCommand(node->document(), editingAction)
, m_node(WTFMove(node))
, m_offset(offset)
, m_count(count)
{
ASSERT(m_offset <= m_node->length());
ASSERT(m_offset + m_count <= m_node->length());
}
void DeleteFromTextNodeCommand::doApply()
{
auto node = protectedNode();
if (!isEditableNode(node))
return;
auto result = node->substringData(m_offset, m_count);
if (result.hasException())
return;
m_text = result.releaseReturnValue();
node->deleteData(m_offset, m_count);
}
void DeleteFromTextNodeCommand::doUnapply()
{
auto node = protectedNode();
if (!node->hasEditableStyle())
return;
node->insertData(m_offset, m_text);
}
#ifndef NDEBUG
void DeleteFromTextNodeCommand::getNodesInCommand(NodeSet& nodes)
{
addNodeAndDescendants(protectedNode().ptr(), nodes);
}
#endif
inline Ref<Text> DeleteFromTextNodeCommand::protectedNode() const
{
return m_node;
}
} // namespace WebCore
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