gesture_config_helper_aura.cc revision cedac228d2dd51db4b79ea1e72c7f249408ee061 
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
3// found in the LICENSE file.
4
5// MSVC++ requires this to be set before any other includes to get M_PI.
6#define _USE_MATH_DEFINES
7
8#include "ui/events/gesture_detection/gesture_config_helper.h"
9
10#include <cmath>
11
12#include "ui/events/gestures/gesture_configuration.h"
13#include "ui/gfx/screen.h"
14
15namespace ui {
16namespace {
17
18GestureDetector::Config DefaultGestureDetectorConfig() {
19  GestureDetector::Config config;
20
21  config.longpress_timeout = base::TimeDelta::FromMilliseconds(
22      GestureConfiguration::long_press_time_in_seconds() * 1000.);
23  config.showpress_timeout = base::TimeDelta::FromMilliseconds(
24      GestureConfiguration::show_press_delay_in_ms());
25  config.double_tap_timeout = base::TimeDelta::FromMilliseconds(
26      GestureConfiguration::semi_long_press_time_in_seconds() * 1000.);
27  config.touch_slop =
28      GestureConfiguration::max_touch_move_in_pixels_for_click();
29  config.double_tap_slop =
30      GestureConfiguration::max_distance_between_taps_for_double_tap();
31  config.minimum_fling_velocity =
32      GestureConfiguration::min_scroll_velocity();
33  config.maximum_fling_velocity = GestureConfiguration::fling_velocity_cap();
34  config.swipe_enabled = true;
35  config.minimum_swipe_velocity = GestureConfiguration::min_swipe_speed();
36  config.maximum_swipe_deviation_angle =
37      atan2(1.f, GestureConfiguration::max_swipe_deviation_ratio()) * 180.0f /
38      static_cast<float>(M_PI);
39  config.two_finger_tap_enabled = true;
40  config.two_finger_tap_max_separation =
41      GestureConfiguration::max_distance_for_two_finger_tap_in_pixels();
42  config.two_finger_tap_timeout = base::TimeDelta::FromMilliseconds(
43      GestureConfiguration::max_touch_down_duration_in_seconds_for_click() *
44      1000.);
45
46  return config;
47}
48
49ScaleGestureDetector::Config DefaultScaleGestureDetectorConfig() {
50  ScaleGestureDetector::Config config;
51
52  config.gesture_detector_config = DefaultGestureDetectorConfig();
53  config.min_scaling_touch_major = GestureConfiguration::default_radius() * 2;
54  config.min_scaling_span = GestureConfiguration::min_scaling_span_in_pixels();
55  config.min_pinch_update_span_delta =
56      GestureConfiguration::min_pinch_update_distance_in_pixels();
57  return config;
58}
59
60}  // namespace
61
62GestureProvider::Config DefaultGestureProviderConfig() {
63  GestureProvider::Config config;
64  config.display = gfx::Screen::GetNativeScreen()->GetPrimaryDisplay();
65  config.gesture_detector_config = DefaultGestureDetectorConfig();
66  config.scale_gesture_detector_config = DefaultScaleGestureDetectorConfig();
67  config.gesture_begin_end_types_enabled = true;
68  return config;
69}
70
71}  // namespace ui
72