content/browser/renderer_host/input/input_router_config_helper.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 "content/browser/renderer_host/input/input_router_config_helper.h"
   6
   7 #include "base/command_line.h"
   8 #include "content/public/common/content_switches.h"
   9 #include "ui/events/gesture_detection/gesture_detector.h"
  10
  11 #if defined(USE_AURA)
  12 #include "ui/events/gesture_detection/gesture_configuration.h"
  13 #elif defined(OS_ANDROID)
  14 #include "ui/gfx/android/view_configuration.h"
  15 #include "ui/gfx/screen.h"
  16 #endif
  17
  18 namespace content {
  19 namespace {
  20
  21 #if defined(USE_AURA)
  22 // TODO(jdduke): Consolidate router configuration paths using
  23 // ui::GestureConfiguration.
  24 GestureEventQueue::Config GetGestureEventQueueConfig() {
  25   GestureEventQueue::Config config;
  26   ui::GestureConfiguration* gesture_config =
  27       ui::GestureConfiguration::GetInstance();
  28   config.debounce_interval = base::TimeDelta::FromMilliseconds(
  29       gesture_config->scroll_debounce_interval_in_ms());
  30
  31   config.touchscreen_tap_suppression_config.enabled = true;
  32   config.touchscreen_tap_suppression_config.max_cancel_to_down_time =
  33       base::TimeDelta::FromMilliseconds(
  34           gesture_config->fling_max_cancel_to_down_time_in_ms());
  35
  36   config.touchscreen_tap_suppression_config.max_tap_gap_time =
  37       base::TimeDelta::FromMilliseconds(
  38           gesture_config->semi_long_press_time_in_ms());
  39
  40   config.touchpad_tap_suppression_config.enabled = true;
  41   config.touchpad_tap_suppression_config.max_cancel_to_down_time =
  42       base::TimeDelta::FromMilliseconds(
  43           gesture_config->fling_max_cancel_to_down_time_in_ms());
  44
  45   config.touchpad_tap_suppression_config.max_tap_gap_time =
  46       base::TimeDelta::FromMilliseconds(
  47           gesture_config->fling_max_tap_gap_time_in_ms());
  48
  49   return config;
  50 }
  51
  52 TouchEventQueue::Config GetTouchEventQueueConfig() {
  53   return TouchEventQueue::Config();
  54 }
  55
  56 #elif defined(OS_ANDROID)
  57
  58 // Default time allowance for the touch ack delay before the touch sequence is
  59 // cancelled, depending on whether the site has a mobile-friendly viewport.
  60 const int kDesktopTouchAckTimeoutDelayMs = 200;
  61 const int kMobileTouchAckTimeoutDelayMs = 1000;
  62
  63 GestureEventQueue::Config GetGestureEventQueueConfig() {
  64   GestureEventQueue::Config config;
  65
  66   config.touchscreen_tap_suppression_config.enabled = true;
  67   config.touchscreen_tap_suppression_config.max_cancel_to_down_time =
  68       base::TimeDelta::FromMilliseconds(
  69           gfx::ViewConfiguration::GetTapTimeoutInMs());
  70   config.touchscreen_tap_suppression_config.max_tap_gap_time =
  71       base::TimeDelta::FromMilliseconds(
  72           gfx::ViewConfiguration::GetLongPressTimeoutInMs());
  73
  74   return config;
  75 }
  76
  77 TouchEventQueue::Config GetTouchEventQueueConfig() {
  78   TouchEventQueue::Config config;
  79
  80   config.desktop_touch_ack_timeout_delay =
  81       base::TimeDelta::FromMilliseconds(kDesktopTouchAckTimeoutDelayMs);
  82   config.mobile_touch_ack_timeout_delay =
  83       base::TimeDelta::FromMilliseconds(kMobileTouchAckTimeoutDelayMs);
  84   config.touch_ack_timeout_supported = true;
  85
  86   return config;
  87 }
  88
  89 #else
  90
  91 GestureEventQueue::Config GetGestureEventQueueConfig() {
  92   return GestureEventQueue::Config();
  93 }
  94
  95 TouchEventQueue::Config GetTouchEventQueueConfig() {
  96   return TouchEventQueue::Config();
  97 }
  98
  99 #endif
 100
 101 }  // namespace
 102
 103 InputRouterImpl::Config GetInputRouterConfigForPlatform() {
 104   InputRouterImpl::Config config;
 105   config.gesture_config = GetGestureEventQueueConfig();
 106   config.touch_config = GetTouchEventQueueConfig();
 107   return config;
 108 }
 109
 110 }  // namespace content