text: /*
   * 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 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 {
      USING_FAST_MALLOC(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&);
      virtual void 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
  