ui/events/gesture_detection/gesture_config_helper_aura.cc

   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
  10 namespace ui {
  11
  12 GestureDetector::Config DefaultGestureDetectorConfig() {
  13   GestureDetector::Config config;
  14
  15   config.longpress_timeout = base::TimeDelta::FromMilliseconds(
  16       GestureConfiguration::long_press_time_in_seconds() * 1000.);
  17   config.tap_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
  33 ScaleGestureDetector::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
  44 SnapScrollController::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
  57 GestureProvider::Config DefaultGestureHandlerConfig() {
  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