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Side by Side Diff: ui/events/gesture_detection/gesture_provider.h

Issue 393953012: Eager Gesture Recognition on Aura (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Rebase. Created 6 years, 4 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 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 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 UI_EVENTS_GESTURE_DETECTION_GESTURE_PROVIDER_H_ 5 #ifndef UI_EVENTS_GESTURE_DETECTION_GESTURE_PROVIDER_H_
6 #define UI_EVENTS_GESTURE_DETECTION_GESTURE_PROVIDER_H_ 6 #define UI_EVENTS_GESTURE_DETECTION_GESTURE_PROVIDER_H_
7 7
8 #include "base/basictypes.h" 8 #include "base/basictypes.h"
9 #include "base/memory/scoped_ptr.h" 9 #include "base/memory/scoped_ptr.h"
10 #include "ui/events/gesture_detection/gesture_detection_export.h" 10 #include "ui/events/gesture_detection/gesture_detection_export.h"
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35 35
36 // If |disable_click_delay| is true and double-tap support is disabled, 36 // If |disable_click_delay| is true and double-tap support is disabled,
37 // there will be no delay before tap events. When double-tap support is 37 // there will be no delay before tap events. When double-tap support is
38 // enabled, there will always be a delay before a tap event is fired, in 38 // enabled, there will always be a delay before a tap event is fired, in
39 // order to allow the double tap gesture to occur without firing any tap 39 // order to allow the double tap gesture to occur without firing any tap
40 // events. 40 // events.
41 bool disable_click_delay; 41 bool disable_click_delay;
42 42
43 // If |gesture_begin_end_types_enabled| is true, fire an ET_GESTURE_BEGIN 43 // If |gesture_begin_end_types_enabled| is true, fire an ET_GESTURE_BEGIN
44 // event for every added touch point, and an ET_GESTURE_END event for every 44 // event for every added touch point, and an ET_GESTURE_END event for every
45 // removed touch point. Defaults to false. 45 // removed touch point. This requires one ACTION_CANCEL event to be sent per
46 // touch point, which only occurs on Aura. Defaults to false.
46 bool gesture_begin_end_types_enabled; 47 bool gesture_begin_end_types_enabled;
47 48
48 // The min and max size (both length and width, in dips) of the generated 49 // The min and max size (both length and width, in dips) of the generated
49 // bounding box for all gesture types. This is useful for touch streams 50 // bounding box for all gesture types. This is useful for touch streams
50 // that may report zero or unreasonably small or large touch sizes. 51 // that may report zero or unreasonably small or large touch sizes.
51 // Both values default to 0 (disabled). 52 // Both values default to 0 (disabled).
52 float min_gesture_bounds_length; 53 float min_gesture_bounds_length;
53 float max_gesture_bounds_length; 54 float max_gesture_bounds_length;
54 }; 55 };
55 56
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129 130
130 const bool gesture_begin_end_types_enabled_; 131 const bool gesture_begin_end_types_enabled_;
131 132
132 const float min_gesture_bounds_length_; 133 const float min_gesture_bounds_length_;
133 const float max_gesture_bounds_length_; 134 const float max_gesture_bounds_length_;
134 }; 135 };
135 136
136 } // namespace ui 137 } // namespace ui
137 138
138 #endif // UI_EVENTS_GESTURE_DETECTION_GESTURE_PROVIDER_H_ 139 #endif // UI_EVENTS_GESTURE_DETECTION_GESTURE_PROVIDER_H_
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