src/ui/events/gestures/gesture_configuration.h

   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.
   4
   5 #ifndef UI_EVENTS_GESTURES_GESTURE_CONFIGURATION_H_
   6 #define UI_EVENTS_GESTURES_GESTURE_CONFIGURATION_H_
   7
   8 #include "base/basictypes.h"
   9 #include "ui/events/events_base_export.h"
  10
  11 namespace ui {
  12
  13 // TODO: Expand this design to support multiple OS configuration
  14 // approaches (windows, chrome, others).  This would turn into an
  15 // abstract base class.
  16
  17 class EVENTS_BASE_EXPORT GestureConfiguration {
  18  public:
  19   // Number of parameters in the array of parameters for the fling acceleration
  20   // curve.
  21   static const int NumAccelParams = 4;
  22
  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_;
  27   }
  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_;
  31   }
  32   static void set_fling_max_cancel_to_down_time_in_ms(int val) {
  33     fling_max_cancel_to_down_time_in_ms_ = val;
  34   }
  35   static int fling_max_tap_gap_time_in_ms() {
  36     return fling_max_tap_gap_time_in_ms_;
  37   }
  38   static void set_fling_max_tap_gap_time_in_ms(int val) {
  39     fling_max_tap_gap_time_in_ms_ = val;
  40   }
  41   static double long_press_time_in_seconds() {
  42     return long_press_time_in_seconds_;
  43   }
  44   static double semi_long_press_time_in_seconds() {
  45     return semi_long_press_time_in_seconds_;
  46   }
  47   static double max_distance_for_two_finger_tap_in_pixels() {
  48     return max_distance_for_two_finger_tap_in_pixels_;
  49   }
  50   static void set_max_distance_for_two_finger_tap_in_pixels(double val) {
  51     max_distance_for_two_finger_tap_in_pixels_ = val;
  52   }
  53   static int max_radius() {
  54     return max_radius_;
  55   }
  56   static void set_long_press_time_in_seconds(double val) {
  57     long_press_time_in_seconds_ = val;
  58   }
  59   static void set_semi_long_press_time_in_seconds(double val) {
  60     semi_long_press_time_in_seconds_ = val;
  61   }
  62   static double max_seconds_between_double_click() {
  63     return max_seconds_between_double_click_;
  64   }
  65   static void set_max_seconds_between_double_click(double val) {
  66     max_seconds_between_double_click_ = val;
  67   }
  68   static int max_separation_for_gesture_touches_in_pixels() {
  69     return max_separation_for_gesture_touches_in_pixels_;
  70   }
  71   static void set_max_separation_for_gesture_touches_in_pixels(int val) {
  72     max_separation_for_gesture_touches_in_pixels_ = val;
  73   }
  74   static float max_swipe_deviation_angle() {
  75     return max_swipe_deviation_angle_;
  76   }
  77   static void set_max_swipe_deviation_angle(float val) {
  78     max_swipe_deviation_angle_ = val;
  79   }
  80   static double max_touch_down_duration_in_seconds_for_click() {
  81     return max_touch_down_duration_in_seconds_for_click_;
  82   }
  83   static void set_max_touch_down_duration_in_seconds_for_click(double val) {
  84     max_touch_down_duration_in_seconds_for_click_ = val;
  85   }
  86   static double max_touch_move_in_pixels_for_click() {
  87     return max_touch_move_in_pixels_for_click_;
  88   }
  89   static void set_max_touch_move_in_pixels_for_click(double val) {
  90     max_touch_move_in_pixels_for_click_ = val;
  91   }
  92   static double max_distance_between_taps_for_double_tap() {
  93     return max_distance_between_taps_for_double_tap_;
  94   }
  95   static void set_max_distance_between_taps_for_double_tap(double val) {
  96     max_distance_between_taps_for_double_tap_ = val;
  97   }
  98   static double min_distance_for_pinch_scroll_in_pixels() {
  99     return min_distance_for_pinch_scroll_in_pixels_;
 100   }
 101   static void set_min_distance_for_pinch_scroll_in_pixels(double val) {
 102     min_distance_for_pinch_scroll_in_pixels_ = val;
 103   }
 104   static double min_flick_speed_squared() {
 105     return min_flick_speed_squared_;
 106   }
 107   static void set_min_flick_speed_squared(double val) {
 108     min_flick_speed_squared_ = val;
 109   }
 110   static double min_pinch_update_distance_in_pixels() {
 111     return min_pinch_update_distance_in_pixels_;
 112   }
 113   static void set_min_pinch_update_distance_in_pixels(double val) {
 114     min_pinch_update_distance_in_pixels_ = val;
 115   }
 116   static double min_rail_break_velocity() {
 117     return min_rail_break_velocity_;
 118   }
 119   static void set_min_rail_break_velocity(double val) {
 120     min_rail_break_velocity_ = val;
 121   }
 122   static double min_scroll_delta_squared() {
 123     return min_scroll_delta_squared_;
 124   }
 125   static void set_min_scroll_delta_squared(double val) {
 126     min_scroll_delta_squared_ = val;
 127   }
 128   static float min_scroll_velocity() {
 129     return min_scroll_velocity_;
 130   }
 131   static void set_min_scroll_velocity(float val) {
 132     min_scroll_velocity_ = val;
 133   }
 134   static double min_swipe_speed() {
 135     return min_swipe_speed_;
 136   }
 137   static void set_min_swipe_speed(double val) {
 138     min_swipe_speed_ = val;
 139   }
 140   static double min_touch_down_duration_in_seconds_for_click() {
 141     return min_touch_down_duration_in_seconds_for_click_;
 142   }
 143   static void set_min_touch_down_duration_in_seconds_for_click(double val) {
 144     min_touch_down_duration_in_seconds_for_click_ = val;
 145   }
 146
 147   static int min_scaling_span_in_pixels() {
 148     return min_scaling_span_in_pixels_;
 149   };
 150
 151   static void set_min_scaling_span_in_pixels(int val) {
 152     min_scaling_span_in_pixels_ = val;
 153   }
 154
 155   static int points_buffered_for_velocity() {
 156     return points_buffered_for_velocity_;
 157   }
 158   static void set_points_buffered_for_velocity(int val) {
 159     points_buffered_for_velocity_ = val;
 160   }
 161   static double rail_break_proportion() {
 162     return rail_break_proportion_;
 163   }
 164   static void set_rail_break_proportion(double val) {
 165     rail_break_proportion_ = val;
 166   }
 167   static double rail_start_proportion() {
 168     return rail_start_proportion_;
 169   }
 170   static void set_rail_start_proportion(double val) {
 171     rail_start_proportion_ = val;
 172   }
 173   static double scroll_prediction_seconds() {
 174     return scroll_prediction_seconds_;
 175   }
 176   static void set_scroll_prediction_seconds(double val) {
 177     scroll_prediction_seconds_ = val;
 178   }
 179   static int show_press_delay_in_ms() {
 180     return show_press_delay_in_ms_;
 181   }
 182   static int set_show_press_delay_in_ms(int val) {
 183     return show_press_delay_in_ms_ = val;
 184   }
 185   static int scroll_debounce_interval_in_ms() {
 186     return scroll_debounce_interval_in_ms_;
 187   }
 188   static int set_scroll_debounce_interval_in_ms(int val) {
 189     return scroll_debounce_interval_in_ms_ = val;
 190   }
 191   static void set_fling_acceleration_curve_coefficients(int i, float val) {
 192     fling_acceleration_curve_coefficients_[i] = val;
 193   }
 194   static float fling_acceleration_curve_coefficients(int i) {
 195     return fling_acceleration_curve_coefficients_[i];
 196   }
 197   static float fling_velocity_cap() {
 198     return fling_velocity_cap_;
 199   }
 200   static void set_fling_velocity_cap(float val) {
 201     fling_velocity_cap_ = val;
 202   }
 203   // TODO(davemoore): Move into chrome/browser/ui.
 204   static int tab_scrub_activation_delay_in_ms() {
 205     return tab_scrub_activation_delay_in_ms_;
 206   }
 207   static void set_tab_scrub_activation_delay_in_ms(int val) {
 208     tab_scrub_activation_delay_in_ms_ = val;
 209   }
 210
 211  private:
 212   // These are listed in alphabetical order ignoring underscores, to
 213   // align with the associated list of preferences in
 214   // gesture_prefs_aura.cc. These two lists should be kept in sync.
 215
 216   // The default touch radius length used when the only information given
 217   // by the device is the touch center.
 218   static int default_radius_;
 219
 220   // The maximum allowed distance between two fingers for a two finger tap. If
 221   // the distance between two fingers is greater than this value, we will not
 222   // recognize a two finger tap.
 223   static double max_distance_for_two_finger_tap_in_pixels_;
 224
 225   // The maximum allowed size for the radius of a touch region used in
 226   // forming an ET_GESTURE_TAP event.
 227   static int max_radius_;
 228
 229   // Maximum time between a GestureFlingCancel and a mousedown such that the
 230   // mousedown is considered associated with the cancel event.
 231   static int fling_max_cancel_to_down_time_in_ms_;
 232
 233   // Maxium time between a mousedown/mouseup pair that is considered to be a
 234   // suppressable tap.
 235   static int fling_max_tap_gap_time_in_ms_;
 236
 237   static double long_press_time_in_seconds_;
 238   static double semi_long_press_time_in_seconds_;
 239   static double max_seconds_between_double_click_;
 240   static double max_separation_for_gesture_touches_in_pixels_;
 241   static float max_swipe_deviation_angle_;
 242   static double max_touch_down_duration_in_seconds_for_click_;
 243   static double max_touch_move_in_pixels_for_click_;
 244   static double max_distance_between_taps_for_double_tap_;
 245   static double min_distance_for_pinch_scroll_in_pixels_;
 246   static double min_flick_speed_squared_;
 247   // Only used with --compensate-for-unstable-pinch-zoom.
 248   static double min_pinch_update_distance_in_pixels_;
 249   static double min_rail_break_velocity_;
 250   static double min_scroll_delta_squared_;
 251   static float min_scroll_velocity_;
 252   static double min_swipe_speed_;
 253   static double min_touch_down_duration_in_seconds_for_click_;
 254   static int min_scaling_span_in_pixels_;
 255   static int points_buffered_for_velocity_;
 256   static double rail_break_proportion_;
 257   static double rail_start_proportion_;
 258   static double scroll_prediction_seconds_;
 259   static int show_press_delay_in_ms_;
 260   static int scroll_debounce_interval_in_ms_;
 261
 262   static float fling_acceleration_curve_coefficients_[NumAccelParams];
 263   static float fling_velocity_cap_;
 264   // TODO(davemoore): Move into chrome/browser/ui.
 265   static int tab_scrub_activation_delay_in_ms_;
 266
 267   DISALLOW_COPY_AND_ASSIGN(GestureConfiguration);
 268 };
 269
 270 }  // namespace ui
 271
 272 #endif  // UI_EVENTS_GESTURES_GESTURE_CONFIGURATION_H_