| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef KeyframeEffectModel_h |
| #define KeyframeEffectModel_h |
| |
| #include "core/animation/AnimatableValue.h" |
| #include "core/animation/AnimationEffect.h" |
| #include "core/animation/InterpolationEffect.h" |
| #include "heap/Handle.h" |
| #include "platform/animation/TimingFunction.h" |
| #include "wtf/HashMap.h" |
| #include "wtf/HashSet.h" |
| #include "wtf/PassOwnPtr.h" |
| #include "wtf/PassRefPtr.h" |
| #include "wtf/RefCounted.h" |
| #include "wtf/Vector.h" |
| |
| namespace WebCore { |
| |
| typedef HashSet<CSSPropertyID> PropertySet; |
| |
| class KeyframeEffectModelTest; |
| |
| // Represents the keyframes set through the API. |
| class Keyframe : public RefCountedWillBeGarbageCollectedFinalized<Keyframe> { |
| public: |
| static PassRefPtrWillBeRawPtr<Keyframe> create() |
| { |
| return adoptRefWillBeNoop(new Keyframe); |
| } |
| static bool compareOffsets(const RefPtrWillBeRawPtr<Keyframe>& a, const RefPtrWillBeRawPtr<Keyframe>& b) |
| { |
| return a->offset() < b->offset(); |
| } |
| void setOffset(double offset) { m_offset = offset; } |
| double offset() const { return m_offset; } |
| void setComposite(AnimationEffect::CompositeOperation composite) { m_composite = composite; } |
| AnimationEffect::CompositeOperation composite() const { return m_composite; } |
| void setEasing(PassRefPtr<TimingFunction>); |
| TimingFunction* easing() const { return m_easing.get(); } |
| void setPropertyValue(CSSPropertyID, const AnimatableValue*); |
| void clearPropertyValue(CSSPropertyID); |
| const AnimatableValue* propertyValue(CSSPropertyID) const; |
| PropertySet properties() const; |
| PassRefPtrWillBeRawPtr<Keyframe> clone() const { return adoptRefWillBeNoop(new Keyframe(*this)); } |
| PassRefPtrWillBeRawPtr<Keyframe> cloneWithOffset(double offset) const; |
| |
| void trace(Visitor*); |
| |
| private: |
| Keyframe(); |
| Keyframe(const Keyframe&); |
| double m_offset; |
| AnimationEffect::CompositeOperation m_composite; |
| RefPtr<TimingFunction> m_easing; |
| typedef WillBeHeapHashMap<CSSPropertyID, RefPtrWillBeMember<AnimatableValue> > PropertyValueMap; |
| PropertyValueMap m_propertyValues; |
| }; |
| |
| class KeyframeEffectModel FINAL : public AnimationEffect { |
| public: |
| class PropertySpecificKeyframe; |
| typedef WillBeHeapVector<RefPtrWillBeMember<Keyframe> > KeyframeVector; |
| typedef WillBeHeapVector<OwnPtrWillBeMember<PropertySpecificKeyframe> > PropertySpecificKeyframeVector; |
| // FIXME: Implement accumulation. |
| static PassRefPtrWillBeRawPtr<KeyframeEffectModel> create(const KeyframeVector& keyframes) |
| { |
| return adoptRefWillBeNoop(new KeyframeEffectModel(keyframes)); |
| } |
| |
| virtual bool affects(CSSPropertyID property) OVERRIDE |
| { |
| ensureKeyframeGroups(); |
| return m_keyframeGroups->contains(property); |
| } |
| |
| // AnimationEffect implementation. |
| virtual PassOwnPtrWillBeRawPtr<WillBeHeapVector<RefPtrWillBeMember<Interpolation> > > sample(int iteration, double fraction, double iterationDuration) const OVERRIDE; |
| |
| // FIXME: Implement setFrames() |
| const KeyframeVector& getFrames() const { return m_keyframes; } |
| |
| virtual bool isKeyframeEffectModel() const OVERRIDE { return true; } |
| |
| bool isReplaceOnly(); |
| |
| PropertySet properties() const; |
| |
| class PropertySpecificKeyframe : public NoBaseWillBeGarbageCollectedFinalized<PropertySpecificKeyframe> { |
| public: |
| PropertySpecificKeyframe(double offset, PassRefPtr<TimingFunction> easing, const AnimatableValue*, CompositeOperation); |
| double offset() const { return m_offset; } |
| TimingFunction* easing() const { return m_easing.get(); } |
| const AnimatableValue* value() const { return m_value.get(); } |
| AnimationEffect::CompositeOperation composite() const { return m_composite; } |
| PassOwnPtrWillBeRawPtr<PropertySpecificKeyframe> cloneWithOffset(double offset) const; |
| |
| void trace(Visitor*); |
| |
| private: |
| // Used by cloneWithOffset(). |
| PropertySpecificKeyframe(double offset, PassRefPtr<TimingFunction> easing, PassRefPtrWillBeRawPtr<AnimatableValue>, CompositeOperation); |
| double m_offset; |
| RefPtr<TimingFunction> m_easing; |
| RefPtrWillBeMember<AnimatableValue> m_value; |
| AnimationEffect::CompositeOperation m_composite; |
| }; |
| |
| class PropertySpecificKeyframeGroup : public NoBaseWillBeGarbageCollectedFinalized<PropertySpecificKeyframeGroup> { |
| public: |
| void appendKeyframe(PassOwnPtrWillBeRawPtr<PropertySpecificKeyframe>); |
| const PropertySpecificKeyframeVector& keyframes() const { return m_keyframes; } |
| |
| void trace(Visitor*); |
| |
| private: |
| PropertySpecificKeyframeVector m_keyframes; |
| void removeRedundantKeyframes(); |
| void addSyntheticKeyframeIfRequired(); |
| |
| friend class KeyframeEffectModel; |
| }; |
| |
| const PropertySpecificKeyframeVector& getPropertySpecificKeyframes(CSSPropertyID id) const |
| { |
| ensureKeyframeGroups(); |
| return m_keyframeGroups->get(id)->keyframes(); |
| } |
| |
| virtual void trace(Visitor*) OVERRIDE; |
| |
| private: |
| KeyframeEffectModel(const KeyframeVector& keyframes); |
| |
| static KeyframeVector normalizedKeyframes(const KeyframeVector& keyframes); |
| |
| // Lazily computes the groups of property-specific keyframes. |
| void ensureKeyframeGroups() const; |
| void ensureInterpolationEffect() const; |
| |
| KeyframeVector m_keyframes; |
| // The spec describes filtering the normalized keyframes at sampling time |
| // to get the 'property-specific keyframes'. For efficiency, we cache the |
| // property-specific lists. |
| typedef WillBeHeapHashMap<CSSPropertyID, OwnPtrWillBeMember<PropertySpecificKeyframeGroup> > KeyframeGroupMap; |
| mutable OwnPtrWillBeMember<KeyframeGroupMap> m_keyframeGroups; |
| |
| mutable RefPtrWillBeMember<InterpolationEffect> m_interpolationEffect; |
| |
| friend class KeyframeEffectModelTest; |
| }; |
| |
| DEFINE_TYPE_CASTS(KeyframeEffectModel, AnimationEffect, value, value->isKeyframeEffectModel(), value.isKeyframeEffectModel()); |
| |
| } // namespace WebCore |
| |
| #endif // KeyframeEffectModel_h |