cc/blink/web_float_animation_curve_impl.h

// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CC_BLINK_WEB_FLOAT_ANIMATION_CURVE_IMPL_H_
#define CC_BLINK_WEB_FLOAT_ANIMATION_CURVE_IMPL_H_

#include "base/memory/scoped_ptr.h"
#include "cc/blink/cc_blink_export.h"
#include "third_party/WebKit/public/platform/WebFloatAnimationCurve.h"

namespace cc {
class AnimationCurve;
class KeyframedFloatAnimationCurve;
}

namespace blink {
struct WebFloatKeyframe;
}

namespace cc_blink {

class WebFloatAnimationCurveImpl : public blink::WebFloatAnimationCurve {
 public:
  CC_BLINK_EXPORT WebFloatAnimationCurveImpl();
  ~WebFloatAnimationCurveImpl() override;

  // WebCompositorAnimationCurve implementation.
  AnimationCurveType type() const override;

  // WebFloatAnimationCurve implementation.
  void add(const blink::WebFloatKeyframe& keyframe) override;
  void add(const blink::WebFloatKeyframe& keyframe,
           TimingFunctionType type) override;
  void add(const blink::WebFloatKeyframe& keyframe,
           double x1,
           double y1,
           double x2,
           double y2) override;
  void add(const blink::WebFloatKeyframe& keyframe,
           int steps,
           float steps_start_offset) override;
  void setLinearTimingFunction() override;
  void setCubicBezierTimingFunction(TimingFunctionType) override;
  void setCubicBezierTimingFunction(double x1,
                                    double y1,
                                    double x2,
                                    double y2) override;
  void setStepsTimingFunction(int number_of_steps,
                              float steps_start_offset) override;

  float getValue(double time) const override;

  scoped_ptr<cc::AnimationCurve> CloneToAnimationCurve() const;

 private:
  scoped_ptr<cc::KeyframedFloatAnimationCurve> curve_;

  DISALLOW_COPY_AND_ASSIGN(WebFloatAnimationCurveImpl);
};

}  // namespace cc_blink

#endif  // CC_BLINK_WEB_FLOAT_ANIMATION_CURVE_IMPL_H_