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 "core/editing/SetNodeAttributeCommand.h" 28 29 #include "core/dom/Element.h" 30 #include "wtf/Assertions.h" 31 32 namespace blink { 33 34 SetNodeAttributeCommand::SetNodeAttributeCommand(PassRefPtrWillBeRawPtr<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 44 void SetNodeAttributeCommand::doApply() 45 { 46 m_oldValue = m_element->getAttribute(m_attribute); 47 m_element->setAttribute(m_attribute, m_value); 48 } 49 50 void SetNodeAttributeCommand::doUnapply() 51 { 52 m_element->setAttribute(m_attribute, m_oldValue); 53 m_oldValue = nullAtom; 54 } 55 56 void SetNodeAttributeCommand::trace(Visitor* visitor) 57 { 58 visitor->trace(m_element); 59 SimpleEditCommand::trace(visitor); 60 } 61 62 } // namespace blink 63
