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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 "ui/events/gesture_detection/gesture_config_helper.h"
#include "ui/gfx/android/view_configuration.h"
#include "ui/gfx/screen.h"
using gfx::ViewConfiguration;
namespace ui {
namespace {
// TODO(jdduke): Adopt GestureConfiguration on Android, crbug/339203.
GestureDetector::Config DefaultGestureDetectorConfig(
const gfx::Display& display) {
GestureDetector::Config config;
config.longpress_timeout = base::TimeDelta::FromMilliseconds(
ViewConfiguration::GetLongPressTimeoutInMs());
config.showpress_timeout =
base::TimeDelta::FromMilliseconds(ViewConfiguration::GetTapTimeoutInMs());
config.double_tap_timeout = base::TimeDelta::FromMilliseconds(
ViewConfiguration::GetDoubleTapTimeoutInMs());
const float px_to_dp = 1.f / display.device_scale_factor();
config.touch_slop =
ViewConfiguration::GetTouchSlopInPixels() * px_to_dp;
config.double_tap_slop =
ViewConfiguration::GetDoubleTapSlopInPixels() * px_to_dp;
config.minimum_fling_velocity =
ViewConfiguration::GetMinimumFlingVelocityInPixelsPerSecond() * px_to_dp;
config.maximum_fling_velocity =
ViewConfiguration::GetMaximumFlingVelocityInPixelsPerSecond() * px_to_dp;
return config;
}
ScaleGestureDetector::Config DefaultScaleGestureDetectorConfig(
const gfx::Display& display) {
ScaleGestureDetector::Config config;
config.gesture_detector_config = DefaultGestureDetectorConfig(display);
config.quick_scale_enabled = true;
const float px_to_dp = 1.f / display.device_scale_factor();
config.min_scaling_touch_major =
ViewConfiguration::GetMinScalingTouchMajorInPixels() * px_to_dp;
config.min_scaling_span =
ViewConfiguration::GetMinScalingSpanInPixels() * px_to_dp;
return config;
}
} // namespace
GestureProvider::Config DefaultGestureProviderConfig() {
GestureProvider::Config config;
config.display = gfx::Screen::GetNativeScreen()->GetPrimaryDisplay();
config.gesture_detector_config = DefaultGestureDetectorConfig(config.display);
config.scale_gesture_detector_config =
DefaultScaleGestureDetectorConfig(config.display);
config.gesture_begin_end_types_enabled = false;
return config;
}
} // namespace ui
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