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      1 /*
      2  * Copyright (C) 2012 Google 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  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     14  *     its contributors may be used to endorse or promote products derived
     15  *     from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef CSSVariableValue_h
     30 #define CSSVariableValue_h
     31 
     32 #include "CSSPropertyNames.h"
     33 #include "core/css/CSSParserValues.h"
     34 #include "core/css/CSSValue.h"
     35 
     36 namespace WebCore {
     37 
     38 class CSSVariableValue : public CSSValue {
     39 public:
     40     static PassRefPtr<CSSVariableValue> create(const AtomicString& name, const String& value)
     41     {
     42         return adoptRef(new CSSVariableValue(name, value));
     43     }
     44 
     45     const AtomicString& name() const { return m_name; }
     46     const String& value() const { return m_value; }
     47 
     48     bool equals(const CSSVariableValue& other) const { return m_name == other.m_name && m_value == other.m_value; }
     49 
     50 private:
     51     CSSVariableValue(const AtomicString& name, const String& value)
     52         : CSSValue(VariableClass)
     53         , m_name(name)
     54         , m_value(value)
     55     {
     56     }
     57 
     58     const AtomicString m_name;
     59     const String m_value;
     60 };
     61 
     62 inline CSSVariableValue* toCSSVariableValue(CSSValue* value)
     63 {
     64     ASSERT_WITH_SECURITY_IMPLICATION(!value || value->isVariableValue());
     65     return static_cast<CSSVariableValue*>(value);
     66 }
     67 
     68 inline const CSSVariableValue* toCSSVariableValue(const CSSValue* value)
     69 {
     70     ASSERT_WITH_SECURITY_IMPLICATION(!value || value->isVariableValue());
     71     return static_cast<const CSSVariableValue*>(value);
     72 }
     73 
     74 }
     75 
     76 #endif /* CSSVariableValue_h */
     77