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| 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef WEBKIT_CHILD_FLING_CURVE_CONFIGURATION_H_ | 5 #ifndef WEBKIT_CHILD_FLING_CURVE_CONFIGURATION_H_ |
| 6 #define WEBKIT_CHILD_FLING_CURVE_CONFIGURATION_H_ | 6 #define WEBKIT_CHILD_FLING_CURVE_CONFIGURATION_H_ |
| 7 | 7 |
| 8 #include <vector> | 8 #include <vector> |
| 9 | 9 |
| 10 #include "base/synchronization/lock.h" | 10 #include "base/synchronization/lock.h" |
| 11 #include "third_party/WebKit/public/platform/WebFloatPoint.h" | 11 #include "third_party/WebKit/public/platform/WebFloatPoint.h" |
| 12 #include "third_party/WebKit/public/platform/WebSize.h" | 12 #include "third_party/WebKit/public/platform/WebSize.h" |
| 13 | 13 |
| 14 namespace WebKit { | 14 namespace blink { |
| 15 class WebGestureCurve; | 15 class WebGestureCurve; |
| 16 } | 16 } |
| 17 | 17 |
| 18 namespace webkit_glue { | 18 namespace webkit_glue { |
| 19 | 19 |
| 20 // A class to manage dynamically adjustable parameters controlling the | 20 // A class to manage dynamically adjustable parameters controlling the |
| 21 // shape of the fling deacceleration function. | 21 // shape of the fling deacceleration function. |
| 22 class FlingCurveConfiguration { | 22 class FlingCurveConfiguration { |
| 23 public: | 23 public: |
| 24 FlingCurveConfiguration(); | 24 FlingCurveConfiguration(); |
| 25 virtual ~FlingCurveConfiguration(); | 25 virtual ~FlingCurveConfiguration(); |
| 26 | 26 |
| 27 // Create a touchpad fling curve using the current parameters. | 27 // Create a touchpad fling curve using the current parameters. |
| 28 WebKit::WebGestureCurve* CreateForTouchPad( | 28 blink::WebGestureCurve* CreateForTouchPad( |
| 29 const WebKit::WebFloatPoint& velocity, | 29 const blink::WebFloatPoint& velocity, |
| 30 const WebKit::WebSize& cumulativeScroll); | 30 const blink::WebSize& cumulativeScroll); |
| 31 | 31 |
| 32 // Create a touchscreen fling curve using the current parameters. | 32 // Create a touchscreen fling curve using the current parameters. |
| 33 WebKit::WebGestureCurve* CreateForTouchScreen( | 33 blink::WebGestureCurve* CreateForTouchScreen( |
| 34 const WebKit::WebFloatPoint& velocity, | 34 const blink::WebFloatPoint& velocity, |
| 35 const WebKit::WebSize& cumulativeScroll); | 35 const blink::WebSize& cumulativeScroll); |
| 36 | 36 |
| 37 // Set the curve parameters. | 37 // Set the curve parameters. |
| 38 void SetCurveParameters( | 38 void SetCurveParameters( |
| 39 const std::vector<float>& new_touchpad, | 39 const std::vector<float>& new_touchpad, |
| 40 const std::vector<float>& new_touchscreen); | 40 const std::vector<float>& new_touchscreen); |
| 41 | 41 |
| 42 private: | 42 private: |
| 43 WebKit::WebGestureCurve* CreateCore( | 43 blink::WebGestureCurve* CreateCore( |
| 44 const std::vector<float>& coefs, | 44 const std::vector<float>& coefs, |
| 45 const WebKit::WebFloatPoint& velocity, | 45 const blink::WebFloatPoint& velocity, |
| 46 const WebKit::WebSize& cumulativeScroll); | 46 const blink::WebSize& cumulativeScroll); |
| 47 | 47 |
| 48 // Protect access to touchpad_coefs_ and touchscreen_coefs_. | 48 // Protect access to touchpad_coefs_ and touchscreen_coefs_. |
| 49 base::Lock lock_; | 49 base::Lock lock_; |
| 50 std::vector<float> touchpad_coefs_; | 50 std::vector<float> touchpad_coefs_; |
| 51 std::vector<float> touchscreen_coefs_; | 51 std::vector<float> touchscreen_coefs_; |
| 52 | 52 |
| 53 DISALLOW_COPY_AND_ASSIGN(FlingCurveConfiguration); | 53 DISALLOW_COPY_AND_ASSIGN(FlingCurveConfiguration); |
| 54 }; | 54 }; |
| 55 | 55 |
| 56 } // namespace webkit_glue | 56 } // namespace webkit_glue |
| 57 | 57 |
| 58 #endif // WEBKIT_CHILD_FLING_CURVE_CONFIGURATION_H_ | 58 #endif // WEBKIT_CHILD_FLING_CURVE_CONFIGURATION_H_ |
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