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 "RemoveCSSPropertyCommand.h"

    28 

    29 #include "CSSMutableStyleDeclaration.h"

    30 #include <wtf/Assertions.h>

    31 

    32 namespace WebCore {

    33 

    34 RemoveCSSPropertyCommand::RemoveCSSPropertyCommand(Document* document, PassRefPtr<CSSMutableStyleDeclaration> style, CSSPropertyID property)

    35     : SimpleEditCommand(document)

    36     , m_style(style)

    37     , m_property(property)

    38     , m_important(false)

    39 {

    40     ASSERT(m_style);

    41 }

    42 

    43 void RemoveCSSPropertyCommand::doApply()

    44 {

    45     m_oldValue = m_style->getPropertyValue(m_property);

    46     m_important = m_style->getPropertyPriority(m_property);

    47     m_style->removeProperty(m_property);

    48 }

    49 

    50 void RemoveCSSPropertyCommand::doUnapply()

    51 {

    52     m_style->setProperty(m_property, m_oldValue, m_important);

    53 }

    54 

    55 } // namespace WebCore