Upstream version 9.38.198.0
[platform/framework/web/crosswalk.git] / src / content / child / fling_animator_impl_android.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 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 content
46
47 #endif  // CONTENT_CHILD_FLING_ANIMATOR_IMPL_ANDROID_H_