Chromium Code Reviews Chromium Code Reviews
Issue 45623005:
[NOT FOR REVIEW] Patch demonstrating the changes required for browser side fling. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src| OLD | NEW |
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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | |
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jdduke (slow)
2013/10/31 15:44:20
I'm not sure we should be removing any of this fro
varunjain
2013/10/31 17:26:03
I dont have a patch for blink yet. But IIUC, non-C
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| 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_CHILD_FLING_CURVE_CONFIGURATION_H_ | |
| 6 #define WEBKIT_CHILD_FLING_CURVE_CONFIGURATION_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_CHILD_FLING_CURVE_CONFIGURATION_H_ | |
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