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 CONTENT_CHILD_FLING_ANIMATOR_IMPL_ANDROID_H_ 6 #define CONTENT_CHILD_FLING_ANIMATOR_IMPL_ANDROID_H_ 7 8 9 #include "third_party/WebKit/public/platform/WebFloatPoint.h" 10 #include "third_party/WebKit/public/platform/WebGestureCurve.h" 11 #include "third_party/WebKit/public/platform/WebSize.h" 12 #include "ui/gfx/android/scroller.h" 13 #include "ui/gfx/point_f.h" 14 15 namespace blink { 16 class WebGestureCurveTarget; 17 } 18 19 namespace content { 20 21 class FlingAnimatorImpl : public blink::WebGestureCurve { 22 public: 23 FlingAnimatorImpl(); 24 virtual ~FlingAnimatorImpl(); 25 26 static FlingAnimatorImpl* CreateAndroidGestureCurve( 27 const blink::WebFloatPoint& velocity, 28 const blink::WebSize&); 29 30 virtual bool apply(double time, blink::WebGestureCurveTarget* target); 31 32 private: 33 void StartFling(const gfx::PointF& velocity); 34 void CancelFling(); 35 36 bool is_active_; 37 38 gfx::Scroller scroller_; 39 40 gfx::PointF last_position_; 41 42 DISALLOW_COPY_AND_ASSIGN(FlingAnimatorImpl); 43 }; 44 45 } // namespace webkit_glue 46 47 #endif // CONTENT_CHILD_FLING_ANIMATOR_IMPL_ANDROID_H_ 48