Source/core/animation/CompositorAnimations.h

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#ifndef CompositorAnimations_h
#define CompositorAnimations_h

#include "core/CoreExport.h"
#include "core/animation/EffectModel.h"
#include "core/animation/Timing.h"
#include "platform/animation/TimingFunction.h"
#include "wtf/Allocator.h"
#include "wtf/Vector.h"

namespace blink {

class Animation;
class Element;
class FloatBox;

class CORE_EXPORT CompositorAnimations {
    WTF_MAKE_FAST_ALLOCATED(CompositorAnimations);
    WTF_MAKE_NONCOPYABLE(CompositorAnimations);
public:
    static CompositorAnimations* instance() { return instance(0); }
    static void setInstanceForTesting(CompositorAnimations* newInstance) { instance(newInstance); }
    static bool isCompositableProperty(CSSPropertyID);
    static const CSSPropertyID compositableProperties[7];

    virtual bool isCandidateForAnimationOnCompositor(const Timing&, const Element&, const Animation*, const EffectModel&, double animationPlaybackRate);
    virtual void cancelIncompatibleAnimationsOnCompositor(const Element&, const Animation&, const EffectModel&);
    virtual bool canStartAnimationOnCompositor(const Element&);
    // FIXME: This should return void. We should know ahead of time whether these animations can be started.
    virtual bool startAnimationOnCompositor(const Element&, int group, double startTime, double timeOffset, const Timing&, const Animation&, const EffectModel&, Vector<int>& startedAnimationIds, double animationPlaybackRate);
    virtual void cancelAnimationOnCompositor(const Element&, const Animation&, int id);
    virtual void pauseAnimationForTestingOnCompositor(const Element&, const Animation&, int id, double pauseTime);

    virtual bool canAttachCompositedLayers(const Element&, const Animation&);
    virtual void attachCompositedLayers(const Element&, const Animation&);

    virtual bool getAnimatedBoundingBox(FloatBox&, const EffectModel&, double minValue, double maxValue) const;

protected:
    CompositorAnimations();

private:
    static CompositorAnimations* instance(CompositorAnimations* newInstance);
};

} // namespace blink

#endif