OLD | NEW |
| (Empty) |
1 // Copyright (c) 2013 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 WEBKIT_GLUE_FLINGCURVECONFIGURATION_H_ | |
6 #define WEBKIT_GLUE_FLINGCURVECONFIGURATION_H_ | |
7 | |
8 #include <vector> | |
9 | |
10 #include "base/synchronization/lock.h" | |
11 #include "third_party/WebKit/public/platform/WebFloatPoint.h" | |
12 #include "third_party/WebKit/public/platform/WebSize.h" | |
13 | |
14 namespace WebKit { | |
15 class WebGestureCurve; | |
16 } | |
17 | |
18 namespace webkit_glue { | |
19 | |
20 // A class to manage dynamically adjustable parameters controlling the | |
21 // shape of the fling deacceleration function. | |
22 class FlingCurveConfiguration { | |
23 public: | |
24 FlingCurveConfiguration(); | |
25 virtual ~FlingCurveConfiguration(); | |
26 | |
27 // Create a touchpad fling curve using the current parameters. | |
28 WebKit::WebGestureCurve* CreateForTouchPad( | |
29 const WebKit::WebFloatPoint& velocity, | |
30 const WebKit::WebSize& cumulativeScroll); | |
31 | |
32 // Create a touchscreen fling curve using the current parameters. | |
33 WebKit::WebGestureCurve* CreateForTouchScreen( | |
34 const WebKit::WebFloatPoint& velocity, | |
35 const WebKit::WebSize& cumulativeScroll); | |
36 | |
37 // Set the curve parameters. | |
38 void SetCurveParameters( | |
39 const std::vector<float>& new_touchpad, | |
40 const std::vector<float>& new_touchscreen); | |
41 | |
42 private: | |
43 WebKit::WebGestureCurve* CreateCore( | |
44 const std::vector<float>& coefs, | |
45 const WebKit::WebFloatPoint& velocity, | |
46 const WebKit::WebSize& cumulativeScroll); | |
47 | |
48 // Protect access to touchpad_coefs_ and touchscreen_coefs_. | |
49 base::Lock lock_; | |
50 std::vector<float> touchpad_coefs_; | |
51 std::vector<float> touchscreen_coefs_; | |
52 | |
53 DISALLOW_COPY_AND_ASSIGN(FlingCurveConfiguration); | |
54 }; | |
55 | |
56 } // namespace webkit_glue | |
57 | |
58 #endif // WEBKIT_GLUE_FLINGCURVECONFIGURATION_H_ | |
OLD | NEW |