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.
5 #ifndef UI_EVENTS_GESTURES_GESTURE_CONFIGURATION_H_
6 #define UI_EVENTS_GESTURES_GESTURE_CONFIGURATION_H_
8 #include "base/basictypes.h"
9 #include "ui/events/events_export.h"
13 // TODO: Expand this design to support multiple OS configuration
14 // approaches (windows, chrome, others). This would turn into an
15 // abstract base class.
17 class EVENTS_EXPORT GestureConfiguration {
19 // Number of parameters in the array of parameters for the fling acceleration
21 static const int NumAccelParams = 4;
23 // Ordered alphabetically ignoring underscores, to align with the
24 // associated list of prefs in gesture_prefs_aura.cc.
25 static int default_radius() {
26 return default_radius_;
28 static void set_default_radius(int radius) { default_radius_ = radius; }
29 static int fling_max_cancel_to_down_time_in_ms() {
30 return fling_max_cancel_to_down_time_in_ms_;
32 static void set_fling_max_cancel_to_down_time_in_ms(int val) {
33 fling_max_cancel_to_down_time_in_ms_ = val;
35 static int fling_max_tap_gap_time_in_ms() {
36 return fling_max_tap_gap_time_in_ms_;
38 static void set_fling_max_tap_gap_time_in_ms(int val) {
39 fling_max_tap_gap_time_in_ms_ = val;
41 static double long_press_time_in_seconds() {
42 return long_press_time_in_seconds_;
44 static double semi_long_press_time_in_seconds() {
45 return semi_long_press_time_in_seconds_;
47 static double max_distance_for_two_finger_tap_in_pixels() {
48 return max_distance_for_two_finger_tap_in_pixels_;
50 static void set_max_distance_for_two_finger_tap_in_pixels(double val) {
51 max_distance_for_two_finger_tap_in_pixels_ = val;
53 static int max_radius() {
56 static void set_long_press_time_in_seconds(double val) {
57 long_press_time_in_seconds_ = val;
59 static void set_semi_long_press_time_in_seconds(double val) {
60 semi_long_press_time_in_seconds_ = val;
62 static double max_seconds_between_double_click() {
63 return max_seconds_between_double_click_;
65 static void set_max_seconds_between_double_click(double val) {
66 max_seconds_between_double_click_ = val;
68 static int max_separation_for_gesture_touches_in_pixels() {
69 return max_separation_for_gesture_touches_in_pixels_;
71 static void set_max_separation_for_gesture_touches_in_pixels(int val) {
72 max_separation_for_gesture_touches_in_pixels_ = val;
74 static double max_swipe_deviation_ratio() {
75 return max_swipe_deviation_ratio_;
77 static void set_max_swipe_deviation_ratio(double val) {
78 max_swipe_deviation_ratio_ = val;
80 static double max_touch_down_duration_in_seconds_for_click() {
81 return max_touch_down_duration_in_seconds_for_click_;
83 static void set_max_touch_down_duration_in_seconds_for_click(double val) {
84 max_touch_down_duration_in_seconds_for_click_ = val;
86 static double max_touch_move_in_pixels_for_click() {
87 return max_touch_move_in_pixels_for_click_;
89 static void set_max_touch_move_in_pixels_for_click(double val) {
90 max_touch_move_in_pixels_for_click_ = val;
92 static double max_distance_between_taps_for_double_tap() {
93 return max_distance_between_taps_for_double_tap_;
95 static void set_max_distance_between_taps_for_double_tap(double val) {
96 max_distance_between_taps_for_double_tap_ = val;
98 static double min_distance_for_pinch_scroll_in_pixels() {
99 return min_distance_for_pinch_scroll_in_pixels_;
101 static void set_min_distance_for_pinch_scroll_in_pixels(double val) {
102 min_distance_for_pinch_scroll_in_pixels_ = val;
104 static double min_flick_speed_squared() {
105 return min_flick_speed_squared_;
107 static void set_min_flick_speed_squared(double val) {
108 min_flick_speed_squared_ = val;
110 static double min_pinch_update_distance_in_pixels() {
111 return min_pinch_update_distance_in_pixels_;
113 static void set_min_pinch_update_distance_in_pixels(double val) {
114 min_pinch_update_distance_in_pixels_ = val;
116 static double min_rail_break_velocity() {
117 return min_rail_break_velocity_;
119 static void set_min_rail_break_velocity(double val) {
120 min_rail_break_velocity_ = val;
122 static double min_scroll_delta_squared() {
123 return min_scroll_delta_squared_;
125 static void set_min_scroll_delta_squared(double val) {
126 min_scroll_delta_squared_ = val;
128 static int min_scroll_successive_velocity_events() {
129 return min_scroll_successive_velocity_events_;
131 static void set_min_scroll_successive_velocity_events(int val) {
132 min_scroll_successive_velocity_events_ = val;
134 static float min_scroll_velocity() {
135 return min_scroll_velocity_;
137 static void set_min_scroll_velocity(float val) {
138 min_scroll_velocity_ = val;
140 static double min_swipe_speed() {
141 return min_swipe_speed_;
143 static void set_min_swipe_speed(double val) {
144 min_swipe_speed_ = val;
146 static double min_touch_down_duration_in_seconds_for_click() {
147 return min_touch_down_duration_in_seconds_for_click_;
149 static void set_min_touch_down_duration_in_seconds_for_click(double val) {
150 min_touch_down_duration_in_seconds_for_click_ = val;
152 static int points_buffered_for_velocity() {
153 return points_buffered_for_velocity_;
155 static void set_points_buffered_for_velocity(int val) {
156 points_buffered_for_velocity_ = val;
158 static double rail_break_proportion() {
159 return rail_break_proportion_;
161 static void set_rail_break_proportion(double val) {
162 rail_break_proportion_ = val;
164 static double rail_start_proportion() {
165 return rail_start_proportion_;
167 static void set_rail_start_proportion(double val) {
168 rail_start_proportion_ = val;
170 static double scroll_prediction_seconds() {
171 return scroll_prediction_seconds_;
173 static void set_scroll_prediction_seconds(double val) {
174 scroll_prediction_seconds_ = val;
176 static int show_press_delay_in_ms() {
177 return show_press_delay_in_ms_;
179 static int set_show_press_delay_in_ms(int val) {
180 return show_press_delay_in_ms_ = val;
182 static void set_fling_acceleration_curve_coefficients(int i, float val) {
183 fling_acceleration_curve_coefficients_[i] = val;
185 static float fling_acceleration_curve_coefficients(int i) {
186 return fling_acceleration_curve_coefficients_[i];
188 static float fling_velocity_cap() {
189 return fling_velocity_cap_;
191 static void set_fling_velocity_cap(float val) {
192 fling_velocity_cap_ = val;
194 // TODO(davemoore): Move into chrome/browser/ui.
195 static int tab_scrub_activation_delay_in_ms() {
196 return tab_scrub_activation_delay_in_ms_;
198 static void set_tab_scrub_activation_delay_in_ms(int val) {
199 tab_scrub_activation_delay_in_ms_ = val;
203 // These are listed in alphabetical order ignoring underscores, to
204 // align with the associated list of preferences in
205 // gesture_prefs_aura.cc. These two lists should be kept in sync.
207 // The default touch radius length used when the only information given
208 // by the device is the touch center.
209 static int default_radius_;
211 // The maximum allowed distance between two fingers for a two finger tap. If
212 // the distance between two fingers is greater than this value, we will not
213 // recognize a two finger tap.
214 static double max_distance_for_two_finger_tap_in_pixels_;
216 // The maximum allowed size for the radius of a touch region used in
217 // forming an ET_GESTURE_TAP event.
218 static int max_radius_;
220 // Maximum time between a GestureFlingCancel and a mousedown such that the
221 // mousedown is considered associated with the cancel event.
222 static int fling_max_cancel_to_down_time_in_ms_;
224 // Maxium time between a mousedown/mouseup pair that is considered to be a
226 static int fling_max_tap_gap_time_in_ms_;
228 static double long_press_time_in_seconds_;
229 static double semi_long_press_time_in_seconds_;
230 static double max_seconds_between_double_click_;
231 static double max_separation_for_gesture_touches_in_pixels_;
232 static double max_swipe_deviation_ratio_;
233 static double max_touch_down_duration_in_seconds_for_click_;
234 static double max_touch_move_in_pixels_for_click_;
235 static double max_distance_between_taps_for_double_tap_;
236 static double min_distance_for_pinch_scroll_in_pixels_;
237 static double min_flick_speed_squared_;
238 static double min_pinch_update_distance_in_pixels_;
239 static double min_rail_break_velocity_;
240 static double min_scroll_delta_squared_;
241 static int min_scroll_successive_velocity_events_;
242 static float min_scroll_velocity_;
243 static double min_swipe_speed_;
244 static double min_touch_down_duration_in_seconds_for_click_;
245 static int points_buffered_for_velocity_;
246 static double rail_break_proportion_;
247 static double rail_start_proportion_;
248 static double scroll_prediction_seconds_;
249 static int show_press_delay_in_ms_;
250 static float fling_acceleration_curve_coefficients_[NumAccelParams];
251 static float fling_velocity_cap_;
252 // TODO(davemoore): Move into chrome/browser/ui.
253 static int tab_scrub_activation_delay_in_ms_;
255 DISALLOW_COPY_AND_ASSIGN(GestureConfiguration);
260 #endif // UI_EVENTS_GESTURES_GESTURE_CONFIGURATION_H_