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      1 /*
      2  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
      3  *
      4  * This library is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU Library General Public
      6  * License as published by the Free Software Foundation; either
      7  * version 2 of the License, or (at your option) any later version.
      8  *
      9  * This library is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  * Library General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU Library General Public License
     15  * along with this library; see the file COPYING.LIB.  If not, write to
     16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  * Boston, MA 02110-1301, USA.
     18  */
     19 
     20 #ifndef SVGAnimatedEnumerationPropertyTearOff_h
     21 #define SVGAnimatedEnumerationPropertyTearOff_h
     22 
     23 #include "bindings/v8/ExceptionState.h"
     24 #include "core/svg/properties/SVGAnimatedStaticPropertyTearOff.h"
     25 #include "core/svg/properties/SVGPropertyTraits.h"
     26 
     27 namespace WebCore {
     28 
     29 template<typename EnumType>
     30 class SVGAnimatedEnumerationPropertyTearOff : public SVGAnimatedStaticPropertyTearOff<unsigned> {
     31 public:
     32     virtual void setBaseVal(const unsigned& property, ExceptionState& exceptionState)
     33     {
     34         // All SVG enumeration values, that are allowed to be set via SVG DOM start with 1, 0 corresponds to unknown and is not settable through SVG DOM.
     35         if (!property || property > SVGPropertyTraits<EnumType>::highestEnumValue()) {
     36             exceptionState.throwUninformativeAndGenericTypeError();
     37             return;
     38         }
     39         SVGAnimatedStaticPropertyTearOff<unsigned>::setBaseVal(property, exceptionState);
     40     }
     41 
     42     static PassRefPtr<SVGAnimatedEnumerationPropertyTearOff<EnumType> > create(SVGElement* contextElement, const QualifiedName& attributeName, AnimatedPropertyType animatedPropertyType, EnumType& property)
     43     {
     44         ASSERT(contextElement);
     45         return adoptRef(new SVGAnimatedEnumerationPropertyTearOff<EnumType>(contextElement, attributeName, animatedPropertyType, reinterpret_cast<unsigned&>(property)));
     46     }
     47 
     48     EnumType& currentAnimatedValue()
     49     {
     50         unsigned& animatedValue = SVGAnimatedStaticPropertyTearOff<unsigned>::currentAnimatedValue();
     51         ASSERT(animatedValue <= SVGPropertyTraits<EnumType>::highestEnumValue());
     52         return reinterpret_cast<EnumType&>(animatedValue);
     53     }
     54 
     55 private:
     56     SVGAnimatedEnumerationPropertyTearOff(SVGElement* contextElement, const QualifiedName& attributeName, AnimatedPropertyType animatedPropertyType, unsigned& property)
     57         : SVGAnimatedStaticPropertyTearOff<unsigned>(contextElement, attributeName, animatedPropertyType, property)
     58     {
     59     }
     60 };
     61 
     62 }
     63 
     64 #endif // SVGAnimatedEnumerationPropertyTearOff_h
     65