Adopt ui::GestureConfiguration on Android

ui/events/gesture_detection/gesture_configuration.h

+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_EVENTS_GESTURE_DETECTION_GESTURE_CONFIGURATION_H_
+#define UI_EVENTS_GESTURE_DETECTION_GESTURE_CONFIGURATION_H_
+
+#include "base/basictypes.h"
+#include "base/memory/singleton.h"
+#include "ui/events/gesture_detection/gesture_detection_export.h"
+
+namespace ui {
+
+class GESTURE_DETECTION_EXPORT GestureConfiguration {
+ public:
+  virtual ~GestureConfiguration();

[sky, 2014/10/24 19:38:36]

Shouldn't this be protected? You don't want random people deleting the value
returned from GetInstance(). In fact you should really document ownership of
GetInstance().

[lanwei, 2014/10/27 14:00:34]

Done.

+
+  static GestureConfiguration* GetInstance();
+
+  // Ordered alphabetically ignoring underscores.
+  float default_radius() const { return default_radius_; }
+  void set_default_radius(float radius) {
+    default_radius_ = radius;
+    min_scaling_touch_major_ = default_radius_ * 2;
+    min_gesture_bounds_length_ = default_radius_;
+  }
+  int double_tap_timeout_in_ms() const { return double_tap_timeout_in_ms_; }
+  int fling_max_cancel_to_down_time_in_ms() const {
+    return fling_max_cancel_to_down_time_in_ms_;
+  }
+  void set_fling_max_cancel_to_down_time_in_ms(int val) {
+    fling_max_cancel_to_down_time_in_ms_ = val;
+  }
+  int fling_max_tap_gap_time_in_ms() const {
+    return fling_max_tap_gap_time_in_ms_;
+  }
+  void set_fling_max_tap_gap_time_in_ms(int val) {
+    fling_max_tap_gap_time_in_ms_ = val;
+  }
+  bool gesture_begin_end_types_enabled() const {
+    return gesture_begin_end_types_enabled_;
+  }
+  int long_press_time_in_ms() const { return long_press_time_in_ms_; }
+  void set_long_press_time_in_ms(int val) { long_press_time_in_ms_ = val; }
+  float max_distance_between_taps_for_double_tap() const {
+    return max_distance_between_taps_for_double_tap_;
+  }
+  void set_max_distance_between_taps_for_double_tap(float val) {
+    max_distance_between_taps_for_double_tap_ = val;
+  }
+  float max_distance_for_two_finger_tap_in_pixels() const {
+    return max_distance_for_two_finger_tap_in_pixels_;
+  }
+  void set_max_distance_for_two_finger_tap_in_pixels(float val) {
+    max_distance_for_two_finger_tap_in_pixels_ = val;
+  }
+  float max_fling_velocity() const { return max_fling_velocity_; }
+  void set_max_fling_velocity(float val) { max_fling_velocity_ = val; }
+  float max_gesture_bounds_length() const {
+    return max_gesture_bounds_length_;
+  }
+  float max_separation_for_gesture_touches_in_pixels() const {
+    return max_separation_for_gesture_touches_in_pixels_;
+  }
+  void set_max_separation_for_gesture_touches_in_pixels(float val) {
+    max_separation_for_gesture_touches_in_pixels_ = val;
+  }
+  float max_swipe_deviation_angle() const {
+    return max_swipe_deviation_angle_;
+  }
+  int max_time_between_double_click_in_ms() const {
+    return max_time_between_double_click_in_ms_;
+  }
+  void set_max_time_between_double_click_in_ms(int val) {
+    max_time_between_double_click_in_ms_ = val;
+  }
+  int max_touch_down_duration_for_click_in_ms() const {
+    return max_touch_down_duration_for_click_in_ms_;
+  }
+  void set_max_touch_down_duration_for_click_in_ms(int val) {
+    max_touch_down_duration_for_click_in_ms_ = val;
+  }
+  float max_touch_move_in_pixels_for_click() const {
+    return max_touch_move_in_pixels_for_click_;
+  }
+  void set_max_touch_move_in_pixels_for_click(float val) {
+    max_touch_move_in_pixels_for_click_ = val;
+    span_slop_ = max_touch_move_in_pixels_for_click_ * 2;
+  }
+  float min_distance_for_pinch_scroll_in_pixels() const {
+    return min_distance_for_pinch_scroll_in_pixels_;
+  }
+  void set_min_distance_for_pinch_scroll_in_pixels(float val) {
+    min_distance_for_pinch_scroll_in_pixels_ = val;
+  }
+  float min_fling_velocity() const { return min_fling_velocity_; }
+  float min_gesture_bounds_length() const {
+    return min_gesture_bounds_length_;
+  }
+  float min_pinch_update_span_delta() const {
+    return min_pinch_update_span_delta_;
+  }
+  void set_min_pinch_update_span_delta(float val) {
+    min_pinch_update_span_delta_ = val;
+  }
+  float min_scaling_span_in_pixels() const {
+    return min_scaling_span_in_pixels_;
+  }
+  float min_scaling_touch_major() const { return min_scaling_touch_major_; }
+  float min_swipe_velocity() const { return min_swipe_velocity_; }
+  void set_min_swipe_velocity(float val) { min_swipe_velocity_ = val; }
+  int scroll_debounce_interval_in_ms() const {
+    return scroll_debounce_interval_in_ms_;
+  }
+  int set_scroll_debounce_interval_in_ms(int val) {
+    return scroll_debounce_interval_in_ms_ = val;
+  }
+  int semi_long_press_time_in_ms() const {
+    return semi_long_press_time_in_ms_;
+  }
+  void set_semi_long_press_time_in_ms(int val) {
+    semi_long_press_time_in_ms_ = val;
+    double_tap_timeout_in_ms_ = val;
+  }
+  int show_press_delay_in_ms() const { return show_press_delay_in_ms_; }
+  int set_show_press_delay_in_ms(int val) {
+    return show_press_delay_in_ms_ = val;
+  }
+  float span_slop() const { return span_slop_; }
+  bool swipe_enabled() const { return swipe_enabled_; }
+
+  // TODO(davemoore): Move into chrome/browser/ui.
+  int tab_scrub_activation_delay_in_ms() const {
+    return tab_scrub_activation_delay_in_ms_;
+  }
+  void set_tab_scrub_activation_delay_in_ms(int val) {
+    tab_scrub_activation_delay_in_ms_ = val;
+  }
+  bool two_finger_tap_enabled() const { return two_finger_tap_enabled_; }
+
+ protected:
+  GestureConfiguration();
+  void set_double_tap_timeout_in_ms(int val) {
+    double_tap_timeout_in_ms_ = val;
+  }
+  void set_gesture_begin_end_types_enabled(bool val) {
+    gesture_begin_end_types_enabled_ = val;
+  }
+  void set_max_gesture_bounds_length(float val) {
+    max_gesture_bounds_length_ = val;
+  }
+  void set_max_swipe_deviation_angle(float val) {
+    max_swipe_deviation_angle_ = val;
+  }
+  void set_min_fling_velocity(float val) { min_fling_velocity_ = val; }
+  void set_min_gesture_bounds_length(float val) {
+    min_gesture_bounds_length_ = val;
+  }
+  void set_min_scaling_span_in_pixels(float val) {
+    min_scaling_span_in_pixels_ = val;
+  }
+  void set_min_scaling_touch_major(float val) {
+    min_scaling_touch_major_ = val;
+  }
+  void set_span_slop(float val) { span_slop_ = val; }
+  void set_swipe_enabled(bool val) { swipe_enabled_ = val; }
+  void set_two_finger_tap_enabled(bool val) { two_finger_tap_enabled_ = val; }
+
+ private:
+  // These are listed in alphabetical order ignoring underscores.
+
+  // The default touch radius length used when the only information given
+  // by the device is the touch center.
+  float default_radius_;
+  int double_tap_timeout_in_ms_;
+  // Maximum time between a GestureFlingCancel and a mousedown such that the
+  // mousedown is considered associated with the cancel event.
+  int fling_max_cancel_to_down_time_in_ms_;
+
+  // Maxium time between a mousedown/mouseup pair that is considered to be a
+  // suppressable tap.
+  int fling_max_tap_gap_time_in_ms_;
+  bool gesture_begin_end_types_enabled_;
+  int long_press_time_in_ms_;
+  float max_distance_between_taps_for_double_tap_;
+
+  // The maximum allowed distance between two fingers for a two finger tap. If
+  // the distance between two fingers is greater than this value, we will not
+  // recognize a two finger tap.
+  float max_distance_for_two_finger_tap_in_pixels_;
+  float max_fling_velocity_;
+  float max_gesture_bounds_length_;
+  float max_separation_for_gesture_touches_in_pixels_;
+  float max_swipe_deviation_angle_;
+  int max_time_between_double_click_in_ms_;
+  int max_touch_down_duration_for_click_in_ms_;
+  float max_touch_move_in_pixels_for_click_;
+  float min_distance_for_pinch_scroll_in_pixels_;
+  float min_fling_velocity_;
+  float min_gesture_bounds_length_;
+  // Only used with --compensate-for-unstable-pinch-zoom.
+  float min_pinch_update_span_delta_;
+  float min_scaling_span_in_pixels_;
+  float min_scaling_touch_major_;
+  float min_swipe_velocity_;
+  int scroll_debounce_interval_in_ms_;
+  int semi_long_press_time_in_ms_;
+  int show_press_delay_in_ms_;
+  float span_slop_;
+  bool swipe_enabled_;
+
+  // TODO(davemoore): Move into chrome/browser/ui.
+  int tab_scrub_activation_delay_in_ms_;
+  bool two_finger_tap_enabled_;
+
+  friend struct DefaultSingletonTraits<GestureConfiguration>;
+  DISALLOW_COPY_AND_ASSIGN(GestureConfiguration);
+};
+
+}  // namespace ui
+
+#endif  // UI_EVENTS_GESTURE_DETECTION_GESTURE_CONFIGURATION_H_