cc/blink/web_scroll_offset_animation_curve_impl.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CC_BLINK_WEB_SCROLL_OFFSET_ANIMATION_CURVE_IMPL_H_
   6 #define CC_BLINK_WEB_SCROLL_OFFSET_ANIMATION_CURVE_IMPL_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "cc/blink/cc_blink_export.h"
  10 #include "third_party/WebKit/public/platform/WebScrollOffsetAnimationCurve.h"
  11
  12 namespace cc {
  13 class AnimationCurve;
  14 class ScrollOffsetAnimationCurve;
  15 }
  16
  17 namespace cc_blink {
  18
  19 class WebScrollOffsetAnimationCurveImpl
  20     : public blink::WebScrollOffsetAnimationCurve {
  21  public:
  22   CC_BLINK_EXPORT WebScrollOffsetAnimationCurveImpl(
  23       blink::WebFloatPoint target_value,
  24       TimingFunctionType timing_function);
  25   virtual ~WebScrollOffsetAnimationCurveImpl();
  26
  27   // blink::WebCompositorAnimationCurve implementation.
  28   virtual AnimationCurveType type() const;
  29
  30   // blink::WebScrollOffsetAnimationCurve implementation.
  31   virtual void setInitialValue(blink::WebFloatPoint initial_value);
  32   virtual blink::WebFloatPoint getValue(double time) const;
  33   virtual double duration() const;
  34   virtual blink::WebFloatPoint targetValue() const;
  35   virtual void updateTarget(double time, blink::WebFloatPoint new_target);
  36
  37   scoped_ptr<cc::AnimationCurve> CloneToAnimationCurve() const;
  38
  39  private:
  40   scoped_ptr<cc::ScrollOffsetAnimationCurve> curve_;
  41
  42   DISALLOW_COPY_AND_ASSIGN(WebScrollOffsetAnimationCurveImpl);
  43 };
  44
  45 }  // namespace cc_blink
  46
  47 #endif  // CC_BLINK_WEB_SCROLL_OFFSET_ANIMATION_CURVE_IMPL_H_