1 /* 2 * Copyright (C) Research In Motion Limited 2010. 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 SVGAnimatedPropertyTearOff_h 21 #define SVGAnimatedPropertyTearOff_h 22 23 #include "bindings/v8/ScriptWrappable.h" 24 #include "core/svg/properties/SVGAnimatedProperty.h" 25 #include "core/svg/properties/SVGPropertyTearOff.h" 26 27 namespace WebCore { 28 29 template<typename PropertyType> 30 class SVGAnimatedPropertyTearOff : public SVGAnimatedProperty, public ScriptWrappable { 31 public: 32 typedef SVGPropertyTearOff<PropertyType> PropertyTearOff; 33 typedef PropertyType ContentType; 34 ~SVGAnimatedPropertyTearOff()35 virtual ~SVGAnimatedPropertyTearOff() 36 { 37 if (m_baseVal) { 38 ASSERT(m_baseVal->animatedProperty() == this); 39 m_baseVal->setAnimatedProperty(0); 40 } 41 if (m_animVal) { 42 ASSERT(m_animVal->animatedProperty() == this); 43 m_animVal->setAnimatedProperty(0); 44 } 45 } 46 baseVal()47 PropertyTearOff* baseVal() 48 { 49 if (!m_baseVal) 50 m_baseVal = PropertyTearOff::create(this, BaseValRole, m_property); 51 return m_baseVal.get(); 52 } 53 animVal()54 PropertyTearOff* animVal() 55 { 56 if (!m_animVal) 57 m_animVal = PropertyTearOff::create(this, AnimValRole, m_property); 58 return m_animVal.get(); 59 } 60 create(SVGElement * contextElement,const QualifiedName & attributeName,AnimatedPropertyType animatedPropertyType,PropertyType & property)61 static PassRefPtr<SVGAnimatedPropertyTearOff<PropertyType> > create(SVGElement* contextElement, const QualifiedName& attributeName, AnimatedPropertyType animatedPropertyType, PropertyType& property) 62 { 63 ASSERT(contextElement); 64 return adoptRef(new SVGAnimatedPropertyTearOff<PropertyType>(contextElement, attributeName, animatedPropertyType, property)); 65 } 66 currentAnimatedValue()67 PropertyType& currentAnimatedValue() 68 { 69 ASSERT(m_isAnimating); 70 ASSERT(m_animVal); 71 return m_animVal->propertyReference(); 72 } 73 currentBaseValue()74 const PropertyType& currentBaseValue() const 75 { 76 return m_property; 77 } 78 animationStarted(PropertyType * newAnimVal)79 void animationStarted(PropertyType* newAnimVal) 80 { 81 ASSERT(!m_isAnimating); 82 ASSERT(newAnimVal); 83 animVal()->setValue(*newAnimVal); 84 m_isAnimating = true; 85 } 86 animationEnded()87 void animationEnded() 88 { 89 ASSERT(m_isAnimating); 90 ASSERT(m_animVal); 91 m_animVal->setValue(m_property); 92 m_isAnimating = false; 93 } 94 animValWillChange()95 void animValWillChange() 96 { 97 // no-op for non list types. 98 ASSERT(m_isAnimating); 99 ASSERT(m_animVal); 100 } 101 animValDidChange()102 void animValDidChange() 103 { 104 // no-op for non list types. 105 ASSERT(m_isAnimating); 106 ASSERT(m_animVal); 107 } 108 109 private: SVGAnimatedPropertyTearOff(SVGElement * contextElement,const QualifiedName & attributeName,AnimatedPropertyType animatedPropertyType,PropertyType & property)110 SVGAnimatedPropertyTearOff(SVGElement* contextElement, const QualifiedName& attributeName, AnimatedPropertyType animatedPropertyType, PropertyType& property) 111 : SVGAnimatedProperty(contextElement, attributeName, animatedPropertyType) 112 , m_property(property) 113 { 114 ScriptWrappable::init(this); 115 } 116 117 PropertyType& m_property; 118 RefPtr<PropertyTearOff> m_baseVal; 119 RefPtr<PropertyTearOff> m_animVal; 120 }; 121 122 } 123 124 #endif // SVGAnimatedPropertyTearOff_h 125