WebCore/css/CSSInitialValue.h

   1 /*
   2  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
   3  * Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Library General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Library General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Library General Public License
  16  * along with this library; see the file COPYING.LIB.  If not, write to
  17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  18  * Boston, MA 02110-1301, USA.
  19  */
  20
  21 #ifndef CSSInitialValue_h
  22 #define CSSInitialValue_h
  23
  24 #include "CSSValue.h"
  25 #include <wtf/PassRefPtr.h>
  26
  27 namespace WebCore {
  28
  29 class CSSInitialValue : public CSSValue {
  30 public:
  31     static PassRefPtr<CSSInitialValue> createExplicit()
  32     {
  33         static CSSInitialValue* explicitValue = new CSSInitialValue(false);
  34         return explicitValue;
  35     }
  36     static PassRefPtr<CSSInitialValue> createImplicit()
  37     {
  38         static CSSInitialValue* explicitValue = new CSSInitialValue(true);
  39         return explicitValue;
  40     }
  41
  42     virtual String cssText() const;
  43
  44 private:
  45     CSSInitialValue(bool implicit)
  46         : m_implicit(implicit)
  47     {
  48     }
  49
  50     virtual unsigned short cssValueType() const;
  51     virtual bool isImplicitInitialValue() const { return m_implicit; }
  52
  53     bool m_implicit;
  54 };
  55
  56 } // namespace WebCore
  57
  58 #endif // CSSInitialValue_h