gesture_config_helper_aura.cc revision a1401311d1ab56c4ed0a474bd38c108f75cb0cd9 
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#include "ui/events/gesture_detection/gesture_config_helper.h"
6
7#include "ui/events/gestures/gesture_configuration.h"
8#include "ui/gfx/screen.h"
9
10namespace ui {
11
12GestureDetector::Config DefaultGestureDetectorConfig() {
13  GestureDetector::Config config;
14
15  config.longpress_timeout = base::TimeDelta::FromMilliseconds(
16      GestureConfiguration::long_press_time_in_seconds() * 1000.);
17  config.showpress_timeout = base::TimeDelta::FromMilliseconds(
18      GestureConfiguration::show_press_delay_in_ms());
19  config.double_tap_timeout = base::TimeDelta::FromMilliseconds(
20      GestureConfiguration::semi_long_press_time_in_seconds() * 1000.);
21  config.scaled_touch_slop =
22      GestureConfiguration::max_touch_move_in_pixels_for_click();
23  config.scaled_double_tap_slop =
24      GestureConfiguration::max_distance_between_taps_for_double_tap();
25  config.scaled_minimum_fling_velocity =
26      GestureConfiguration::min_scroll_velocity();
27  config.scaled_maximum_fling_velocity =
28      GestureConfiguration::fling_velocity_cap();
29
30  return config;
31}
32
33ScaleGestureDetector::Config DefaultScaleGestureDetectorConfig() {
34  ScaleGestureDetector::Config config;
35
36  config.gesture_detector_config = DefaultGestureDetectorConfig();
37  config.quick_scale_enabled = false;
38  config.min_scaling_touch_major = GestureConfiguration::default_radius() / 2;
39  config.min_scaling_span =
40      GestureConfiguration::min_distance_for_pinch_scroll_in_pixels();
41  return config;
42}
43
44SnapScrollController::Config DefaultSnapScrollControllerConfig() {
45  SnapScrollController::Config config;
46
47  const gfx::Display& display =
48      gfx::Screen::GetNativeScreen()->GetPrimaryDisplay();
49
50  config.screen_width_pixels = display.GetSizeInPixel().width();
51  config.screen_height_pixels = display.GetSizeInPixel().height();
52  config.device_scale_factor = display.device_scale_factor();
53
54  return config;
55}
56
57GestureProvider::Config DefaultGestureProviderConfig() {
58  GestureProvider::Config config;
59  config.gesture_detector_config = DefaultGestureDetectorConfig();
60  config.scale_gesture_detector_config = DefaultScaleGestureDetectorConfig();
61  config.snap_scroll_controller_config = DefaultSnapScrollControllerConfig();
62  return config;
63}
64
65}  // namespace ui
66