blob: 8ee28a1b3a029e43547b805d4182a932500d5e1f [file] [log] [blame]
/*
* 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 "DeleteFromTextNodeCommand.h"
#include "AXObjectCache.h"
#include "Text.h"
namespace WebCore {
DeleteFromTextNodeCommand::DeleteFromTextNodeCommand(PassRefPtr<Text> node, unsigned offset, unsigned count)
: SimpleEditCommand(node->document())
, m_node(node)
, m_offset(offset)
, m_count(count)
{
ASSERT(m_node);
ASSERT(m_offset <= m_node->length());
ASSERT(m_offset + m_count <= m_node->length());
}
void DeleteFromTextNodeCommand::doApply()
{
ASSERT(m_node);
if (!m_node->rendererIsEditable())
return;
ExceptionCode ec = 0;
m_text = m_node->substringData(m_offset, m_count, ec);
if (ec)
return;
// Need to notify this before actually deleting the text
if (AXObjectCache::accessibilityEnabled())
document()->axObjectCache()->nodeTextChangeNotification(m_node->renderer(), AXObjectCache::AXTextDeleted, m_offset, m_count);
m_node->deleteData(m_offset, m_count, ec);
}
void DeleteFromTextNodeCommand::doUnapply()
{
ASSERT(m_node);
if (!m_node->rendererIsEditable())
return;
ExceptionCode ec;
m_node->insertData(m_offset, m_text, ec);
if (AXObjectCache::accessibilityEnabled())
document()->axObjectCache()->nodeTextChangeNotification(m_node->renderer(), AXObjectCache::AXTextInserted, m_offset, m_count);
}
} // namespace WebCore