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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 "build/build_config.h"
- #include "ui/events/gesture_detection/gesture_configuration.h"
- #include "build/chromeos_buildflags.h"
- namespace ui {
- namespace {
- GestureConfiguration* instance = nullptr;
- } // namespace
- // static
- GestureConfiguration* GestureConfiguration::GetInstance() {
- if (instance)
- return instance;
- return GestureConfiguration::GetPlatformSpecificInstance();
- }
- GestureConfiguration::GestureConfiguration()
- : default_radius_(25),
- double_tap_enabled_(false),
- double_tap_timeout_in_ms_(400),
- fling_touchpad_tap_suppression_enabled_(false),
- fling_touchscreen_tap_suppression_enabled_(false),
- fling_max_cancel_to_down_time_in_ms_(400),
- fling_max_tap_gap_time_in_ms_(200),
- stylus_scale_enabled_(false),
- gesture_begin_end_types_enabled_(false),
- long_press_time_in_ms_(500),
- max_distance_between_taps_for_double_tap_(20),
- max_tap_count_(3),
- max_distance_for_two_finger_tap_in_pixels_(300),
- max_fling_velocity_(17000.0f),
- max_gesture_bounds_length_(0),
- max_separation_for_gesture_touches_in_pixels_(150),
- max_swipe_deviation_angle_(20),
- max_time_between_double_click_in_ms_(700),
- max_touch_down_duration_for_click_in_ms_(800),
- max_touch_move_in_pixels_for_click_(15),
- min_distance_for_pinch_scroll_in_pixels_(20),
- min_fling_velocity_(30.0f),
- min_gesture_bounds_length_(0),
- min_pinch_update_span_delta_(0),
- // If this is too small, we currently can get single finger pinch zoom.
- // See crbug.com/357237 for details.
- min_scaling_span_in_pixels_(125),
- min_swipe_velocity_(20),
- // TODO(jdduke): Disable and remove entirely when issues with intermittent
- // scroll end detection on the Pixel are resolved, crbug.com/353702.
- #if BUILDFLAG(IS_CHROMEOS_ASH)
- scroll_debounce_interval_in_ms_(30),
- #else
- scroll_debounce_interval_in_ms_(0),
- #endif
- show_press_delay_in_ms_(150),
- #if BUILDFLAG(IS_CHROMEOS_ASH)
- single_pointer_cancel_enabled_(true),
- #else
- single_pointer_cancel_enabled_(false),
- #endif
- // The default value of span_slop_ is
- // 2 * max_touch_move_in_pixels_for_click_.
- span_slop_(30),
- swipe_enabled_(false),
- two_finger_tap_enabled_(false),
- velocity_tracker_strategy_(VelocityTracker::Strategy::STRATEGY_DEFAULT) {
- }
- GestureConfiguration::~GestureConfiguration() {
- }
- } // namespace ui
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