1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef Keyframe_h 6 #define Keyframe_h 7 8 #include "core/CSSPropertyNames.h" 9 #include "core/animation/AnimatableValue.h" 10 #include "core/animation/AnimationEffect.h" 11 #include "core/animation/AnimationNode.h" 12 13 namespace WebCore { 14 15 typedef HashSet<CSSPropertyID> PropertySet; 16 17 class Element; 18 19 // FIXME: Make Keyframe immutable 20 class Keyframe : public RefCountedWillBeGarbageCollectedFinalized<Keyframe> { 21 public: 22 virtual ~Keyframe() { } 23 24 void setOffset(double offset) { m_offset = offset; } 25 double offset() const { return m_offset; } 26 27 void setComposite(AnimationEffect::CompositeOperation composite) { m_composite = composite; } 28 AnimationEffect::CompositeOperation composite() const { return m_composite; } 29 30 void setEasing(PassRefPtr<TimingFunction> easing) { m_easing = easing; } 31 TimingFunction* easing() const { return m_easing.get(); } 32 33 static bool compareOffsets(const RefPtrWillBeMember<Keyframe>& a, const RefPtrWillBeMember<Keyframe>& b) 34 { 35 return a->offset() < b->offset(); 36 } 37 38 virtual PropertySet properties() const = 0; 39 40 virtual PassRefPtrWillBeRawPtr<Keyframe> clone() const = 0; 41 PassRefPtrWillBeRawPtr<Keyframe> cloneWithOffset(double offset) const 42 { 43 RefPtrWillBeRawPtr<Keyframe> theClone = clone(); 44 theClone->setOffset(offset); 45 return theClone.release(); 46 } 47 48 virtual bool isAnimatableValueKeyframe() const { return false; } 49 virtual bool isStringKeyframe() const { return false; } 50 51 virtual void trace(Visitor*) { } 52 53 class PropertySpecificKeyframe : public NoBaseWillBeGarbageCollectedFinalized<PropertySpecificKeyframe> { 54 public: 55 virtual ~PropertySpecificKeyframe() { } 56 double offset() const { return m_offset; } 57 TimingFunction* easing() const { return m_easing.get(); } 58 AnimationEffect::CompositeOperation composite() const { return m_composite; } 59 virtual PassOwnPtrWillBeRawPtr<PropertySpecificKeyframe> cloneWithOffset(double offset) const = 0; 60 61 virtual const PassRefPtrWillBeRawPtr<AnimatableValue> getAnimatableValue() const = 0; 62 63 virtual bool isAnimatableValuePropertySpecificKeyframe() const { return false; } 64 virtual bool isStringPropertySpecificKeyframe() const { return false; } 65 66 virtual PassOwnPtrWillBeRawPtr<PropertySpecificKeyframe> neutralKeyframe(double offset, PassRefPtr<TimingFunction> easing) const = 0; 67 virtual PassRefPtrWillBeRawPtr<Interpolation> createInterpolation(CSSPropertyID, WebCore::Keyframe::PropertySpecificKeyframe* end, Element*) const = 0; 68 69 virtual void trace(Visitor*) { } 70 71 protected: 72 PropertySpecificKeyframe(double offset, PassRefPtr<TimingFunction> easing, AnimationEffect::CompositeOperation); 73 74 double m_offset; 75 RefPtr<TimingFunction> m_easing; 76 AnimationEffect::CompositeOperation m_composite; 77 }; 78 79 virtual PassOwnPtrWillBeRawPtr<PropertySpecificKeyframe> createPropertySpecificKeyframe(CSSPropertyID) const = 0; 80 81 protected: 82 Keyframe() 83 : m_offset(nullValue()) 84 , m_composite(AnimationEffect::CompositeReplace) 85 , m_easing(LinearTimingFunction::shared()) 86 { 87 } 88 Keyframe(double offset, AnimationEffect::CompositeOperation composite, PassRefPtr<TimingFunction> easing) 89 : m_offset(offset) 90 , m_composite(composite) 91 , m_easing(easing) 92 { 93 } 94 95 double m_offset; 96 AnimationEffect::CompositeOperation m_composite; 97 RefPtr<TimingFunction> m_easing; 98 }; 99 100 } 101 102 #endif 103
