| // Copyright (c) 2013 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. |
| |
| #ifndef UI_MESSAGE_CENTER_POPUP_TIMER_H_ |
| #define UI_MESSAGE_CENTER_POPUP_TIMER_H_ |
| |
| #include <map> |
| #include <string> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/time/time.h" |
| #include "base/timer/timer.h" |
| #include "ui/message_center/message_center.h" |
| #include "ui/message_center/message_center_observer.h" |
| #include "ui/message_center/message_center_types.h" |
| #include "ui/message_center/notification_blocker.h" |
| #include "ui/message_center/notifier_settings.h" |
| |
| namespace message_center { |
| class PopupTimersController; |
| |
| // A class that manages timeout behavior for notification popups. One instance |
| // is created per notification popup. |
| class PopupTimer { |
| public: |
| // Accepts a notification ID, time until callback, and a reference to the |
| // controller which will be called back. The reference is a weak pointer so |
| // that timers never cause a callback on a destructed object. |
| PopupTimer(const std::string& id, |
| base::TimeDelta timeout, |
| base::WeakPtr<PopupTimersController> controller); |
| ~PopupTimer(); |
| |
| // Starts running the timer. Barring a Pause or Reset call, the timer will |
| // call back to |controller| after |timeout| seconds. |
| void Start(); |
| |
| // Stops the timer, and retains the amount of time that has passed so that on |
| // subsequent calls to Start the timer will continue where it left off. |
| void Pause(); |
| |
| // Stops the timer, and resets the amount of time that has passed so that |
| // calling Start results in a timeout equal to the initial timeout setting. |
| void Reset(); |
| |
| base::TimeDelta get_timeout() const { return timeout_; } |
| |
| private: |
| // Notification ID for which this timer applies. |
| const std::string id_; |
| |
| // Total time that should pass while active before calling TimerFinished. |
| base::TimeDelta timeout_; |
| |
| // If paused, the amount of time that passed before pause. |
| base::TimeDelta passed_; |
| |
| // The time that the timer was last started. |
| base::Time start_time_; |
| |
| // Callback recipient. |
| base::WeakPtr<PopupTimersController> timer_controller_; |
| |
| // The actual timer. |
| scoped_ptr<base::OneShotTimer> timer_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PopupTimer); |
| }; |
| |
| // A class that manages all the timers running for individual notification popup |
| // windows. It supports weak pointers in order to allow safe callbacks when |
| // timers expire. |
| class MESSAGE_CENTER_EXPORT PopupTimersController |
| : public base::SupportsWeakPtr<PopupTimersController>, |
| public MessageCenterObserver { |
| public: |
| explicit PopupTimersController(MessageCenter* message_center); |
| ~PopupTimersController() override; |
| |
| // MessageCenterObserver implementation. |
| void OnNotificationDisplayed(const std::string& id, |
| const DisplaySource source) override; |
| void OnNotificationUpdated(const std::string& id) override; |
| void OnNotificationRemoved(const std::string& id, bool by_user) override; |
| |
| // Callback for each timer when its time is up. |
| virtual void TimerFinished(const std::string& id); |
| |
| // Pauses all running timers. |
| void PauseAll(); |
| |
| // Continues all managed timers. |
| void StartAll(); |
| |
| // Removes all managed timers. |
| void CancelAll(); |
| |
| // Starts a timer (by creating a PopupTimer) for |id|. |
| void StartTimer(const std::string& id, |
| const base::TimeDelta& timeout_in_seconds); |
| |
| // Stops a single timer, reverts it to a new timeout, and restarts it. |
| void ResetTimer(const std::string& id, |
| const base::TimeDelta& timeout_in_seconds); |
| |
| // Pauses a single timer, such that it will continue where it left off after a |
| // call to StartAll or StartTimer. |
| void PauseTimer(const std::string& id); |
| |
| // Removes and cancels a single popup timer, if it exists. |
| void CancelTimer(const std::string& id); |
| |
| private: |
| // Weak, global. |
| MessageCenter* message_center_; |
| |
| // The PopupTimerCollection contains all the managed timers by their ID. |
| using PopupTimerCollection = std::map<std::string, scoped_ptr<PopupTimer>>; |
| PopupTimerCollection popup_timers_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PopupTimersController); |
| }; |
| |
| } // namespace message_center |
| |
| #endif // UI_MESSAGE_CENTER_POPUP_TIMER_H_ |