1 /* 2 * Copyright (C) Research In Motion Limited 2011-2012. All rights reserved. 3 * Copyright (C) 2013 Samsung Electronics. 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 SVGAnimatedTypeAnimator_h 22 #define SVGAnimatedTypeAnimator_h 23 24 #include "core/svg/SVGAnimatedType.h" 25 #include "core/svg/SVGElementInstance.h" 26 #include "core/svg/properties/SVGAnimatedProperty.h" 27 #include "wtf/PassOwnPtr.h" 28 29 namespace WebCore { 30 31 struct SVGElementAnimatedProperties { 32 SVGElementAnimatedProperties(); 33 34 SVGElementAnimatedProperties(SVGElement*, Vector<RefPtr<SVGAnimatedProperty> >&); 35 36 SVGElement* element; 37 Vector<RefPtr<SVGAnimatedProperty> > properties; 38 }; 39 typedef Vector<SVGElementAnimatedProperties> SVGElementAnimatedPropertyList; 40 41 class SVGAnimationElement; 42 43 class SVGAnimatedTypeAnimator { 44 WTF_MAKE_FAST_ALLOCATED; 45 public: 46 virtual ~SVGAnimatedTypeAnimator(); 47 virtual PassOwnPtr<SVGAnimatedType> constructFromString(const String&) = 0; 48 49 virtual PassOwnPtr<SVGAnimatedType> startAnimValAnimation(const SVGElementAnimatedPropertyList&) = 0; 50 virtual void stopAnimValAnimation(const SVGElementAnimatedPropertyList&) = 0; 51 virtual void resetAnimValToBaseVal(const SVGElementAnimatedPropertyList&, SVGAnimatedType*) = 0; 52 virtual void animValWillChange(const SVGElementAnimatedPropertyList&) = 0; 53 virtual void animValDidChange(const SVGElementAnimatedPropertyList&) = 0; 54 virtual void addAnimatedTypes(SVGAnimatedType*, SVGAnimatedType*) = 0; 55 56 virtual void calculateAnimatedValue(float percentage, unsigned repeatCount, SVGAnimatedType*, SVGAnimatedType*, SVGAnimatedType*, SVGAnimatedType*) = 0; 57 virtual float calculateDistance(const String& fromString, const String& toString) = 0; 58 59 void calculateFromAndToValues(OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, const String& fromString, const String& toString); 60 void calculateFromAndByValues(OwnPtr<SVGAnimatedType>& from, OwnPtr<SVGAnimatedType>& to, const String& fromString, const String& byString); 61 setContextElement(SVGElement * contextElement)62 void setContextElement(SVGElement* contextElement) { m_contextElement = contextElement; } type()63 AnimatedPropertyType type() const { return m_type; } 64 65 SVGElementAnimatedPropertyList findAnimatedPropertiesForAttributeName(SVGElement*, const QualifiedName&); 66 67 protected: 68 SVGAnimatedTypeAnimator(AnimatedPropertyType, SVGAnimationElement*, SVGElement*); 69 70 // Helpers for animators that operate on single types, eg. just one SVGAnimatedInteger. 71 template<typename AnimValType> constructFromBaseValue(const SVGElementAnimatedPropertyList & animatedTypes)72 typename AnimValType::ContentType* constructFromBaseValue(const SVGElementAnimatedPropertyList& animatedTypes) 73 { 74 ASSERT(animatedTypes[0].properties.size() == 1); 75 const typename AnimValType::ContentType& animatedType = castAnimatedPropertyToActualType<AnimValType>(animatedTypes[0].properties[0].get())->currentBaseValue(); 76 77 typename AnimValType::ContentType* copy = new typename AnimValType::ContentType(animatedType); 78 executeAction<AnimValType>(StartAnimationAction, animatedTypes, 0, copy); 79 return copy; 80 } 81 82 template<typename AnimValType> resetFromBaseValue(const SVGElementAnimatedPropertyList & animatedTypes,SVGAnimatedType * type,typename AnimValType::ContentType & (SVGAnimatedType::* getter)())83 void resetFromBaseValue(const SVGElementAnimatedPropertyList& animatedTypes, SVGAnimatedType* type, typename AnimValType::ContentType& (SVGAnimatedType::*getter)()) 84 { 85 ASSERT(animatedTypes[0].properties.size() == 1); 86 ASSERT(type); 87 ASSERT(type->type() == m_type); 88 typename AnimValType::ContentType& animatedTypeValue = (type->*getter)(); 89 animatedTypeValue = castAnimatedPropertyToActualType<AnimValType>(animatedTypes[0].properties[0].get())->currentBaseValue(); 90 91 executeAction<AnimValType>(StartAnimationAction, animatedTypes, 0, &animatedTypeValue); 92 } 93 94 template<typename AnimValType> stopAnimValAnimationForType(const SVGElementAnimatedPropertyList & animatedTypes)95 void stopAnimValAnimationForType(const SVGElementAnimatedPropertyList& animatedTypes) 96 { 97 ASSERT(animatedTypes[0].properties.size() == 1); 98 executeAction<AnimValType>(StopAnimationAction, animatedTypes, 0); 99 } 100 101 template<typename AnimValType> animValDidChangeForType(const SVGElementAnimatedPropertyList & animatedTypes)102 void animValDidChangeForType(const SVGElementAnimatedPropertyList& animatedTypes) 103 { 104 ASSERT(animatedTypes[0].properties.size() == 1); 105 executeAction<AnimValType>(AnimValDidChangeAction, animatedTypes, 0); 106 } 107 108 template<typename AnimValType> animValWillChangeForType(const SVGElementAnimatedPropertyList & animatedTypes)109 void animValWillChangeForType(const SVGElementAnimatedPropertyList& animatedTypes) 110 { 111 ASSERT(animatedTypes[0].properties.size() == 1); 112 executeAction<AnimValType>(AnimValWillChangeAction, animatedTypes, 0); 113 } 114 115 // Helpers for animators that operate on pair types, eg. a pair of SVGAnimatedIntegers. 116 template<typename AnimValType1, typename AnimValType2> constructFromBaseValues(const SVGElementAnimatedPropertyList & animatedTypes)117 pair<typename AnimValType1::ContentType, typename AnimValType2::ContentType>* constructFromBaseValues(const SVGElementAnimatedPropertyList& animatedTypes) 118 { 119 ASSERT(animatedTypes[0].properties.size() == 2); 120 const typename AnimValType1::ContentType& firstType = castAnimatedPropertyToActualType<AnimValType1>(animatedTypes[0].properties[0].get())->currentBaseValue(); 121 const typename AnimValType2::ContentType& secondType = castAnimatedPropertyToActualType<AnimValType2>(animatedTypes[0].properties[1].get())->currentBaseValue(); 122 123 pair<typename AnimValType1::ContentType, typename AnimValType2::ContentType>* copy = new pair<typename AnimValType1::ContentType, typename AnimValType2::ContentType>(firstType, secondType); 124 executeAction<AnimValType1>(StartAnimationAction, animatedTypes, 0, ©->first); 125 executeAction<AnimValType2>(StartAnimationAction, animatedTypes, 1, ©->second); 126 return copy; 127 } 128 129 template<typename AnimValType1, typename AnimValType2> resetFromBaseValues(const SVGElementAnimatedPropertyList & animatedTypes,SVGAnimatedType * type,pair<typename AnimValType1::ContentType,typename AnimValType2::ContentType> & (SVGAnimatedType::* getter)())130 void resetFromBaseValues(const SVGElementAnimatedPropertyList& animatedTypes, SVGAnimatedType* type, pair<typename AnimValType1::ContentType, typename AnimValType2::ContentType>& (SVGAnimatedType::*getter)()) 131 { 132 ASSERT(animatedTypes[0].properties.size() == 2); 133 ASSERT(type); 134 ASSERT(type->type() == m_type); 135 136 pair<typename AnimValType1::ContentType, typename AnimValType2::ContentType>& animatedTypeValue = (type->*getter)(); 137 animatedTypeValue.first = castAnimatedPropertyToActualType<AnimValType1>(animatedTypes[0].properties[0].get())->currentBaseValue(); 138 animatedTypeValue.second = castAnimatedPropertyToActualType<AnimValType2>(animatedTypes[0].properties[1].get())->currentBaseValue(); 139 140 executeAction<AnimValType1>(StartAnimationAction, animatedTypes, 0, &animatedTypeValue.first); 141 executeAction<AnimValType2>(StartAnimationAction, animatedTypes, 1, &animatedTypeValue.second); 142 } 143 144 template<typename AnimValType1, typename AnimValType2> stopAnimValAnimationForTypes(const SVGElementAnimatedPropertyList & animatedTypes)145 void stopAnimValAnimationForTypes(const SVGElementAnimatedPropertyList& animatedTypes) 146 { 147 ASSERT(animatedTypes[0].properties.size() == 2); 148 executeAction<AnimValType1>(StopAnimationAction, animatedTypes, 0); 149 executeAction<AnimValType2>(StopAnimationAction, animatedTypes, 1); 150 } 151 152 template<typename AnimValType1, typename AnimValType2> animValDidChangeForTypes(const SVGElementAnimatedPropertyList & animatedTypes)153 void animValDidChangeForTypes(const SVGElementAnimatedPropertyList& animatedTypes) 154 { 155 ASSERT(animatedTypes[0].properties.size() == 2); 156 executeAction<AnimValType1>(AnimValDidChangeAction, animatedTypes, 0); 157 executeAction<AnimValType2>(AnimValDidChangeAction, animatedTypes, 1); 158 } 159 160 template<typename AnimValType1, typename AnimValType2> animValWillChangeForTypes(const SVGElementAnimatedPropertyList & animatedTypes)161 void animValWillChangeForTypes(const SVGElementAnimatedPropertyList& animatedTypes) 162 { 163 ASSERT(animatedTypes[0].properties.size() == 2); 164 executeAction<AnimValType1>(AnimValWillChangeAction, animatedTypes, 0); 165 executeAction<AnimValType2>(AnimValWillChangeAction, animatedTypes, 1); 166 } 167 168 template<typename AnimValType> castAnimatedPropertyToActualType(SVGAnimatedProperty * property)169 AnimValType* castAnimatedPropertyToActualType(SVGAnimatedProperty* property) 170 { 171 ASSERT(property); 172 ASSERT(property->contextElement()); 173 // We can't assert property->animatedPropertyType() == m_type, as there's an exception for SVGMarkerElements orient attribute. 174 if (property->animatedPropertyType() != m_type) { 175 ASSERT(m_type == AnimatedAngle); 176 ASSERT(property->animatedPropertyType() == AnimatedEnumeration); 177 } 178 return static_cast<AnimValType*>(property); 179 } 180 181 AnimatedPropertyType m_type; 182 SVGAnimationElement* m_animationElement; 183 SVGElement* m_contextElement; 184 185 private: 186 enum AnimationAction { 187 StartAnimationAction, 188 StopAnimationAction, 189 AnimValWillChangeAction, 190 AnimValDidChangeAction 191 }; 192 193 template<typename AnimValType> 194 void executeAction(AnimationAction action, const SVGElementAnimatedPropertyList& animatedTypes, unsigned whichProperty, typename AnimValType::ContentType* type = 0) 195 { 196 SVGElementInstance::InstanceUpdateBlocker blocker(animatedTypes[0].element); 197 198 SVGElementAnimatedPropertyList::const_iterator end = animatedTypes.end(); 199 for (SVGElementAnimatedPropertyList::const_iterator it = animatedTypes.begin(); it != end; ++it) { 200 ASSERT_WITH_SECURITY_IMPLICATION(whichProperty < it->properties.size()); 201 AnimValType* property = castAnimatedPropertyToActualType<AnimValType>(it->properties[whichProperty].get()); 202 203 switch (action) { 204 case StartAnimationAction: 205 ASSERT(type); 206 if (!property->isAnimating()) 207 property->animationStarted(type); 208 break; 209 case StopAnimationAction: 210 ASSERT(!type); 211 property->animationEnded(); 212 break; 213 case AnimValWillChangeAction: 214 ASSERT(!type); 215 property->animValWillChange(); 216 break; 217 case AnimValDidChangeAction: 218 ASSERT(!type); 219 property->animValDidChange(); 220 break; 221 } 222 } 223 } 224 }; 225 226 } // namespace WebCore 227 228 #endif // SVGAnimatedTypeAnimator_h 229