WebCore/CSSVariablesDeclaration.h

   1 /*
   2  * Copyright (C) 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 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 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 #ifndef CSSVariablesDeclaration_h
  27 #define CSSVariablesDeclaration_h
  28
  29 #include "PlatformString.h"
  30 #include "StringHash.h"
  31 #include "StyleBase.h"
  32 #include <wtf/HashMap.h>
  33 #include <wtf/RefPtr.h>
  34 #include <wtf/Vector.h>
  35
  36 namespace WebCore {
  37
  38 typedef int ExceptionCode;
  39
  40 class CSSMutableStyleDeclaration;
  41 class CSSRule;
  42 class CSSValue;
  43 class CSSValueList;
  44
  45 class CSSVariablesDeclaration : public StyleBase {
  46 public:
  47     static PassRefPtr<CSSVariablesDeclaration> create(StyleBase* owningRule, const Vector<String>& names, const Vector<RefPtr<CSSValue> >& values)
  48     {
  49         return adoptRef(new CSSVariablesDeclaration(owningRule, names, values));
  50     }
  51     virtual ~CSSVariablesDeclaration();
  52
  53     String getVariableValue(const String&);
  54     String removeVariable(const String&, ExceptionCode&);
  55     void setVariable(const String&, const String&, ExceptionCode&);
  56
  57     unsigned length() const;
  58     String item(unsigned index);
  59
  60     CSSRule* parentRule();
  61
  62     String cssText() const;
  63     void setCssText(const String&); // FIXME: The spec contradicts itself regarding whether or not cssText is settable.
  64
  65     void addParsedVariable(const String& variableName, PassRefPtr<CSSValue> variableValue, bool updateNamesList = true);
  66
  67     CSSValueList* getParsedVariable(const String& variableName);
  68     CSSMutableStyleDeclaration* getParsedVariableDeclarationBlock(const String& variableName);
  69
  70 private:
  71     CSSVariablesDeclaration(StyleBase* owningRule, const Vector<String>& names, const Vector<RefPtr<CSSValue> >& values);
  72
  73     void setChanged();
  74
  75 protected:
  76     Vector<String> m_variableNames;
  77     HashMap<String, RefPtr<CSSValue> > m_variablesMap;
  78 };
  79
  80 } // namespace WebCore
  81
  82 #endif // CSSVariablesDeclaration_h