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 COMPUTER, 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 COMPUTER, 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
32 namespace WebCore {
33
SetNodeAttributeCommand(PassRefPtr<Element> element,const QualifiedName & attribute,const AtomicString & value)34 SetNodeAttributeCommand::SetNodeAttributeCommand(PassRefPtr<Element> element,
35 const QualifiedName& attribute, const AtomicString& value)
36 : SimpleEditCommand(element->document())
37 , m_element(element)
38 , m_attribute(attribute)
39 , m_value(value)
40 {
41 ASSERT(m_element);
42 }
43
doApply()44 void SetNodeAttributeCommand::doApply()
45 {
46 m_oldValue = m_element->getAttribute(m_attribute);
47 m_element->setAttribute(m_attribute, m_value);
48 }
49
doUnapply()50 void SetNodeAttributeCommand::doUnapply()
51 {
52 m_element->setAttribute(m_attribute, m_oldValue);
53 AtomicStringImpl* nullString = 0;
54 m_oldValue = nullString;
55 }
56
57 } // namespace WebCore
58