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/*
* 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,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef KeyframeEffectModel_h
#define KeyframeEffectModel_h
#include "core/animation/AnimatableValueKeyframe.h"
#include "core/animation/AnimationEffect.h"
#include "core/animation/AnimationNode.h"
#include "core/animation/InterpolationEffect.h"
#include "core/animation/StringKeyframe.h"
#include "platform/animation/TimingFunction.h"
#include "platform/heap/Handle.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 {
class Element;
class KeyframeEffectModelTest;
class KeyframeEffectModelBase : public AnimationEffect {
public:
// FIXME: Implement accumulation.
typedef WillBeHeapVector<OwnPtrWillBeMember<Keyframe::PropertySpecificKeyframe> > PropertySpecificKeyframeVector;
class PropertySpecificKeyframeGroup : public NoBaseWillBeGarbageCollected<PropertySpecificKeyframeGroup> {
public:
void appendKeyframe(PassOwnPtrWillBeRawPtr<Keyframe::PropertySpecificKeyframe>);
const PropertySpecificKeyframeVector& keyframes() const { return m_keyframes; }
void trace(Visitor*);
private:
void removeRedundantKeyframes();
void addSyntheticKeyframeIfRequired(const KeyframeEffectModelBase* context);
PropertySpecificKeyframeVector m_keyframes;
friend class KeyframeEffectModelBase;
};
bool isReplaceOnly();
PropertySet properties() const;
typedef WillBeHeapVector<RefPtrWillBeMember<Keyframe> > KeyframeVector;
const KeyframeVector& getFrames() const { return m_keyframes; }
// FIXME: Implement setFrames()
const PropertySpecificKeyframeVector& getPropertySpecificKeyframes(CSSPropertyID id) const
{
ensureKeyframeGroups();
return m_keyframeGroups->get(id)->keyframes();
}
// AnimationEffect implementation.
virtual PassOwnPtrWillBeRawPtr<WillBeHeapVector<RefPtrWillBeMember<Interpolation> > > sample(int iteration, double fraction, double iterationDuration) const OVERRIDE;
virtual bool isKeyframeEffectModel() const OVERRIDE { return true; }
virtual bool isAnimatableValueKeyframeEffectModel() const { return false; }
virtual bool isStringKeyframeEffectModel() const { return false; }
virtual void trace(Visitor*) OVERRIDE;
// FIXME: This is a hack used to resolve CSSValues to AnimatableValues while we have a valid handle on an element.
// This should be removed once StringKeyframes no longer uses InterpolableAnimatableValues.
void forceConversionsToAnimatableValues(Element* element)
{
ensureKeyframeGroups();
ensureInterpolationEffect(element);
}
protected:
static KeyframeVector normalizedKeyframes(const KeyframeVector& keyframes);
// Lazily computes the groups of property-specific keyframes.
void ensureKeyframeGroups() const;
void ensureInterpolationEffect(Element* = 0) 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;
bool affects(CSSPropertyID property)
{
ensureKeyframeGroups();
return m_keyframeGroups->contains(property);
}
};
template <class Keyframe>
class KeyframeEffectModel FINAL : public KeyframeEffectModelBase {
public:
typedef WillBeHeapVector<RefPtrWillBeMember<Keyframe> > KeyframeVector;
static PassRefPtrWillBeRawPtr<KeyframeEffectModel<Keyframe> > create(const KeyframeVector& keyframes) { return adoptRefWillBeNoop(new KeyframeEffectModel(keyframes)); }
private:
KeyframeEffectModel(const KeyframeVector& keyframes)
{
m_keyframes.appendVector(keyframes);
}
virtual bool isAnimatableValueKeyframeEffectModel() const { return false; }
virtual bool isStringKeyframeEffectModel() const { return false; }
};
typedef KeyframeEffectModelBase::KeyframeVector KeyframeVector;
typedef KeyframeEffectModelBase::PropertySpecificKeyframeVector PropertySpecificKeyframeVector;
typedef KeyframeEffectModel<AnimatableValueKeyframe> AnimatableValueKeyframeEffectModel;
typedef AnimatableValueKeyframeEffectModel::KeyframeVector AnimatableValueKeyframeVector;
typedef AnimatableValueKeyframeEffectModel::PropertySpecificKeyframeVector AnimatableValuePropertySpecificKeyframeVector;
typedef KeyframeEffectModel<StringKeyframe> StringKeyframeEffectModel;
typedef StringKeyframeEffectModel::KeyframeVector StringKeyframeVector;
typedef StringKeyframeEffectModel::PropertySpecificKeyframeVector StringPropertySpecificKeyframeVector;
DEFINE_TYPE_CASTS(KeyframeEffectModelBase, AnimationEffect, value, value->isKeyframeEffectModel(), value.isKeyframeEffectModel());
DEFINE_TYPE_CASTS(AnimatableValueKeyframeEffectModel, KeyframeEffectModelBase, value, value->isAnimatableValueKeyframeEffectModel(), value.isAnimatableValueKeyframeEffectModel());
inline const AnimatableValueKeyframeEffectModel* toAnimatableValueKeyframeEffectModel(const AnimationEffect* base)
{
return toAnimatableValueKeyframeEffectModel(toKeyframeEffectModelBase(base));
}
inline AnimatableValueKeyframeEffectModel* toAnimatableValueKeyframeEffectModel(AnimationEffect* base)
{
return toAnimatableValueKeyframeEffectModel(toKeyframeEffectModelBase(base));
}
template <>
inline bool KeyframeEffectModel<AnimatableValueKeyframe>::isAnimatableValueKeyframeEffectModel() const { return true; }
template <>
inline bool KeyframeEffectModel<StringKeyframe>::isStringKeyframeEffectModel() const { return true; }
} // namespace WebCore
#endif // KeyframeEffectModel_h
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