| // Copyright 2014 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. |
| |
| #include "ui/events/gesture_detection/gesture_config_helper.h" |
| |
| #include <cmath> |
| |
| #include "base/command_line.h" |
| #include "ui/events/event_switches.h" |
| #include "ui/events/gestures/gesture_configuration.h" |
| |
| namespace ui { |
| namespace { |
| |
| GestureDetector::Config DefaultGestureDetectorConfig() { |
| GestureDetector::Config config; |
| |
| config.longpress_timeout = base::TimeDelta::FromMilliseconds( |
| GestureConfiguration::long_press_time_in_ms()); |
| config.showpress_timeout = base::TimeDelta::FromMilliseconds( |
| GestureConfiguration::show_press_delay_in_ms()); |
| config.double_tap_timeout = base::TimeDelta::FromMilliseconds( |
| GestureConfiguration::semi_long_press_time_in_ms()); |
| config.touch_slop = |
| GestureConfiguration::max_touch_move_in_pixels_for_click(); |
| config.double_tap_slop = |
| GestureConfiguration::max_distance_between_taps_for_double_tap(); |
| config.minimum_fling_velocity = |
| GestureConfiguration::min_scroll_velocity(); |
| config.maximum_fling_velocity = GestureConfiguration::fling_velocity_cap(); |
| config.swipe_enabled = true; |
| config.minimum_swipe_velocity = GestureConfiguration::min_swipe_speed(); |
| config.maximum_swipe_deviation_angle = |
| GestureConfiguration::max_swipe_deviation_angle(); |
| config.two_finger_tap_enabled = true; |
| config.two_finger_tap_max_separation = |
| GestureConfiguration::max_distance_for_two_finger_tap_in_pixels(); |
| config.two_finger_tap_timeout = base::TimeDelta::FromMilliseconds( |
| GestureConfiguration::max_touch_down_duration_for_click_in_ms()); |
| |
| return config; |
| } |
| |
| ScaleGestureDetector::Config DefaultScaleGestureDetectorConfig() { |
| ScaleGestureDetector::Config config; |
| config.span_slop = |
| GestureConfiguration::max_touch_move_in_pixels_for_click() * 2; |
| config.min_scaling_touch_major = GestureConfiguration::default_radius() * 2; |
| config.min_scaling_span = GestureConfiguration::min_scaling_span_in_pixels(); |
| config.min_pinch_update_span_delta = 0; |
| return config; |
| } |
| |
| } // namespace |
| |
| GestureProvider::Config DefaultGestureProviderConfig() { |
| GestureProvider::Config config; |
| config.gesture_detector_config = DefaultGestureDetectorConfig(); |
| config.scale_gesture_detector_config = DefaultScaleGestureDetectorConfig(); |
| config.gesture_begin_end_types_enabled = true; |
| // Half the size of the default touch length is a reasonable minimum. |
| config.min_gesture_bounds_length = GestureConfiguration::default_radius(); |
| return config; |
| } |
| |
| } // namespace ui |