Source/core/animation/ThreadedAnimation.h

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#ifndef ThreadedAnimation_h
#define ThreadedAnimation_h

#include "wtf/Vector.h"

namespace WebCore {

class Element;
class Timing;
class AnimationEffect;

class ThreadedAnimation FINAL {

public:
    // Note that the implementation of these functions is indirected for mocking during unit testing.
    static void isCandidateForThreadedAnimation(const Timing* timing, const AnimationEffect* effect) { (*s_isCandidateForThreadedAnimationFunction)(timing, effect); }
    static void canStartThreadedAnimation(const Element* element) { (*s_canStartThreadedAnimationFunction)(element); }
    static void startThreadedAnimation(const Element* element, const Timing* timing, const AnimationEffect* effect, Vector<int>& threadedAnimationIds) { (*s_startThreadedAnimationFunction)(element, timing, effect, threadedAnimationIds); }
    static void cancelThreadedAnimation(const Element* element, int id) { (*s_cancelThreadedAnimationFunction)(element, id); }

private:
    ThreadedAnimation() { }
    static void isCandidateForThreadedAnimationImpl(const Timing*, const AnimationEffect*);
    static void canStartThreadedAnimationImpl(const Element*);
    static void startThreadedAnimationImpl(const Element*, const Timing*, const AnimationEffect*, Vector<int>& threadedAnimationIds);
    static void cancelThreadedAnimationImpl(const Element*, int threadedAnimationId);

    typedef void (*IsCandidateForThreadedAnimationFunction)(const Timing*, const AnimationEffect*);
    typedef void (*CanStartThreadedAnimationFunction)(const Element*);
    typedef void (*StartThreadedAnimationFunction)(const Element*, const Timing*, const AnimationEffect*, Vector<int>&);
    typedef void (*CancelThreadedAnimationFunction)(const Element*, int);

    static IsCandidateForThreadedAnimationFunction s_isCandidateForThreadedAnimationFunction;
    static CanStartThreadedAnimationFunction s_canStartThreadedAnimationFunction;
    static StartThreadedAnimationFunction s_startThreadedAnimationFunction;
    static CancelThreadedAnimationFunction s_cancelThreadedAnimationFunction;
};

} // namespace WebCore

#endif