| // Copyright (c) 2012 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 "ash/wm/user_activity_detector.h" |
| |
| #include "ash/wm/property_util.h" |
| #include "ash/wm/user_activity_observer.h" |
| #include "ui/base/events/event.h" |
| |
| namespace ash { |
| |
| const int UserActivityDetector::kNotifyIntervalMs = 200; |
| |
| // Too low and mouse events generated at the tail end of reconfiguration |
| // will be reported as user activity and turn the screen back on; too high |
| // and we'll ignore legitimate activity. |
| const int UserActivityDetector::kDisplayPowerChangeIgnoreMouseMs = 1000; |
| |
| UserActivityDetector::UserActivityDetector() { |
| } |
| |
| UserActivityDetector::~UserActivityDetector() { |
| } |
| |
| bool UserActivityDetector::HasObserver(UserActivityObserver* observer) const { |
| return observers_.HasObserver(observer); |
| } |
| |
| void UserActivityDetector::AddObserver(UserActivityObserver* observer) { |
| observers_.AddObserver(observer); |
| } |
| |
| void UserActivityDetector::RemoveObserver(UserActivityObserver* observer) { |
| observers_.RemoveObserver(observer); |
| } |
| |
| void UserActivityDetector::OnDisplayPowerChanging() { |
| honor_mouse_events_time_ = GetCurrentTime() + |
| base::TimeDelta::FromMilliseconds(kDisplayPowerChangeIgnoreMouseMs); |
| } |
| |
| void UserActivityDetector::OnKeyEvent(ui::KeyEvent* event) { |
| HandleActivity(event); |
| } |
| |
| void UserActivityDetector::OnMouseEvent(ui::MouseEvent* event) { |
| if (event->flags() & ui::EF_IS_SYNTHESIZED) |
| return; |
| if (!honor_mouse_events_time_.is_null() && |
| GetCurrentTime() < honor_mouse_events_time_) |
| return; |
| |
| HandleActivity(event); |
| } |
| |
| void UserActivityDetector::OnScrollEvent(ui::ScrollEvent* event) { |
| HandleActivity(event); |
| } |
| |
| void UserActivityDetector::OnTouchEvent(ui::TouchEvent* event) { |
| HandleActivity(event); |
| } |
| |
| void UserActivityDetector::OnGestureEvent(ui::GestureEvent* event) { |
| HandleActivity(event); |
| } |
| |
| base::TimeTicks UserActivityDetector::GetCurrentTime() const { |
| return !now_for_test_.is_null() ? now_for_test_ : base::TimeTicks::Now(); |
| } |
| |
| void UserActivityDetector::HandleActivity(const ui::Event* event) { |
| base::TimeTicks now = GetCurrentTime(); |
| last_activity_time_ = now; |
| if (last_observer_notification_time_.is_null() || |
| (now - last_observer_notification_time_).InMillisecondsF() >= |
| kNotifyIntervalMs) { |
| FOR_EACH_OBSERVER(UserActivityObserver, observers_, OnUserActivity(event)); |
| last_observer_notification_time_ = now; |
| } |
| } |
| |
| } // namespace ash |