ui/base/gestures/gesture_configuration.cc - Issue 10917169: Adjust defaults for touchscreen scrolling parameters.

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Side by Side Diff: ui/base/gestures/gesture_configuration.cc

Issue 10917169: Adjust defaults for touchscreen scrolling parameters. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src

Patch Set: review nit Created 8 years, 3 months ago

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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.	1 // Copyright (c) 2012 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 #include "ui/base/gestures/gesture_configuration.h"	5 #include "ui/base/gestures/gesture_configuration.h"

6	6

7 namespace ui {	7 namespace ui {

8	8

9 // Ordered alphabetically ignoring underscores, to align with the	9 // Ordered alphabetically ignoring underscores, to align with the

10 // associated list of prefs in gesture_prefs_aura.cc.	10 // associated list of prefs in gesture_prefs_aura.cc.

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31 GestureConfiguration::min_touch_down_duration_in_seconds_for_click_ = 0.01;	31 GestureConfiguration::min_touch_down_duration_in_seconds_for_click_ = 0.01;

32	32

33 // The number of points used in the linear regression which determines	33 // The number of points used in the linear regression which determines

34 // touch velocity. If fewer than this number of points have been seen,	34 // touch velocity. If fewer than this number of points have been seen,

35 // velocity is reported as 0.	35 // velocity is reported as 0.

36 int GestureConfiguration::points_buffered_for_velocity_ = 3;	36 int GestureConfiguration::points_buffered_for_velocity_ = 3;

37 double GestureConfiguration::rail_break_proportion_ = 15;	37 double GestureConfiguration::rail_break_proportion_ = 15;

38 double GestureConfiguration::rail_start_proportion_ = 2;	38 double GestureConfiguration::rail_start_proportion_ = 2;

39	39

40 // The additional acceleration to apply to touchscreen flings.	40 // The additional acceleration to apply to touchscreen flings.

41 double GestureConfiguration::touchscreen_fling_acceleration_adjustment_	41 double GestureConfiguration::touchscreen_fling_acceleration_adjustment_ = 0.85;

42 = 1;

43	42

44 } // namespace ui	43 } // namespace ui

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