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 15namespace blink { 16class WebGestureCurveTarget; 17} 18 19namespace content { 20 21class 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 content 46 47#endif // CONTENT_CHILD_FLING_ANIMATOR_IMPL_ANDROID_H_ 48