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// 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 "content/browser/renderer_host/input/input_router_config_helper.h"
#include "base/command_line.h"
#include "content/public/common/content_switches.h"
#include "ui/events/gesture_detection/gesture_detector.h"
#if defined(USE_AURA)
#include "ui/events/gestures/gesture_configuration.h"
#elif defined(OS_ANDROID)
#include "ui/gfx/android/view_configuration.h"
#include "ui/gfx/screen.h"
#endif
namespace content {
namespace {
#if defined(USE_AURA)
GestureEventQueue::Config GetGestureEventQueueConfig() {
GestureEventQueue::Config config;
config.debounce_interval = base::TimeDelta::FromMilliseconds(
ui::GestureConfiguration::scroll_debounce_interval_in_ms());
config.touchscreen_tap_suppression_config.enabled = true;
config.touchscreen_tap_suppression_config.max_cancel_to_down_time =
base::TimeDelta::FromMilliseconds(
ui::GestureConfiguration::fling_max_cancel_to_down_time_in_ms());
config.touchscreen_tap_suppression_config.max_tap_gap_time =
base::TimeDelta::FromMilliseconds(static_cast<int>(
ui::GestureConfiguration::semi_long_press_time_in_seconds() * 1000));
config.touchpad_tap_suppression_config.enabled = true;
config.touchpad_tap_suppression_config.max_cancel_to_down_time =
base::TimeDelta::FromMilliseconds(
ui::GestureConfiguration::fling_max_cancel_to_down_time_in_ms());
config.touchpad_tap_suppression_config.max_tap_gap_time =
base::TimeDelta::FromMilliseconds(static_cast<int>(
ui::GestureConfiguration::fling_max_tap_gap_time_in_ms() * 1000));
return config;
}
TouchEventQueue::Config GetTouchEventQueueConfig() {
TouchEventQueue::Config config;
config.touchmove_slop_suppression_length_dips =
ui::GestureConfiguration::max_touch_move_in_pixels_for_click();
// TODO(jdduke): Remove when unified GR enabled, crbug.com/332418.
config.touchmove_slop_suppression_region_includes_boundary = false;
return config;
}
#elif defined(OS_ANDROID)
// Default time allowance for the touch ack delay before the touch sequence is
// cancelled.
const int kTouchAckTimeoutDelayMs = 200;
GestureEventQueue::Config GetGestureEventQueueConfig() {
GestureEventQueue::Config config;
config.touchscreen_tap_suppression_config.enabled = true;
config.touchscreen_tap_suppression_config.max_cancel_to_down_time =
base::TimeDelta::FromMilliseconds(
gfx::ViewConfiguration::GetTapTimeoutInMs());
config.touchscreen_tap_suppression_config.max_tap_gap_time =
base::TimeDelta::FromMilliseconds(
gfx::ViewConfiguration::GetLongPressTimeoutInMs());
return config;
}
TouchEventQueue::Config GetTouchEventQueueConfig() {
TouchEventQueue::Config config;
config.touch_ack_timeout_delay =
base::TimeDelta::FromMilliseconds(kTouchAckTimeoutDelayMs);
config.touch_ack_timeout_supported = true;
const double touch_slop_length_pixels =
static_cast<double>(gfx::ViewConfiguration::GetTouchSlopInPixels());
const double device_scale_factor =
gfx::Screen::GetNativeScreen()->GetPrimaryDisplay().device_scale_factor();
config.touchmove_slop_suppression_length_dips =
touch_slop_length_pixels / device_scale_factor;
return config;
}
#else
GestureEventQueue::Config GetGestureEventQueueConfig() {
return GestureEventQueue::Config();
}
TouchEventQueue::Config GetTouchEventQueueConfig() {
TouchEventQueue::Config config;
config.touchmove_slop_suppression_length_dips =
ui::GestureDetector::Config().touch_slop;
return config;
}
#endif
TouchEventQueue::TouchScrollingMode GetTouchScrollingMode() {
std::string modeString =
CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
switches::kTouchScrollingMode);
if (modeString == switches::kTouchScrollingModeAsyncTouchmove)
return TouchEventQueue::TOUCH_SCROLLING_MODE_ASYNC_TOUCHMOVE;
if (modeString == switches::kTouchScrollingModeSyncTouchmove)
return TouchEventQueue::TOUCH_SCROLLING_MODE_SYNC_TOUCHMOVE;
if (modeString == switches::kTouchScrollingModeTouchcancel)
return TouchEventQueue::TOUCH_SCROLLING_MODE_TOUCHCANCEL;
if (modeString != "")
LOG(ERROR) << "Invalid --touch-scrolling-mode option: " << modeString;
return TouchEventQueue::TOUCH_SCROLLING_MODE_DEFAULT;
}
} // namespace
InputRouterImpl::Config GetInputRouterConfigForPlatform() {
InputRouterImpl::Config config;
config.gesture_config = GetGestureEventQueueConfig();
config.touch_config = GetTouchEventQueueConfig();
config.touch_config.touch_scrolling_mode = GetTouchScrollingMode();
return config;
}
} // namespace content
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