1/*
2 * Copyright (C) 2005, 2008 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "SetNodeAttributeCommand.h"
28
29#include "Element.h"
30#include <wtf/Assertions.h>
31
32namespace WebCore {
33
34SetNodeAttributeCommand::SetNodeAttributeCommand(PassRefPtr<Element> element, const QualifiedName& attribute, const AtomicString& value)
35    : SimpleEditCommand(element->document())
36    , m_element(element)
37    , m_attribute(attribute)
38    , m_value(value)
39{
40    ASSERT(m_element);
41}
42
43void SetNodeAttributeCommand::doApply()
44{
45    m_oldValue = m_element->getAttribute(m_attribute);
46    m_element->setAttribute(m_attribute, m_value);
47}
48
49void SetNodeAttributeCommand::doUnapply()
50{
51    m_element->setAttribute(m_attribute, m_oldValue);
52    AtomicStringImpl* nullString = 0;
53    m_oldValue = nullString;
54}
55
56#ifndef NDEBUG
57void SetNodeAttributeCommand::getNodesInCommand(HashSet<Node*>& nodes)
58{
59    addNodeAndDescendants(m_element.get(), nodes);
60}
61#endif
62
63} // namespace WebCore
64