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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.
- #ifndef ASH_SYSTEM_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_
- #define ASH_SYSTEM_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_
- #include <memory>
- #include "ash/ash_export.h"
- #include "ash/public/cpp/session/session_observer.h"
- #include "base/callback_forward.h"
- #include "base/time/time.h"
- #include "base/timer/timer.h"
- class PrefRegistrySimple;
- namespace base {
- class TickClock;
- }
- namespace ash {
- class LogoutConfirmationDialog;
- // This class shows a dialog asking the user to confirm or deny logout and
- // terminates the session if the user either confirms or allows the countdown
- // shown in the dialog to expire.
- //
- // It is guaranteed that no more than one confirmation dialog will be visible at
- // any given time. If there are multiple requests to show a confirmation dialog
- // at the same time, the dialog whose countdown expires first is shown.
- //
- // In public sessions, asks the user to end the session when the last window is
- // closed.
- class ASH_EXPORT LogoutConfirmationController : public SessionObserver {
- public:
- enum class Source { kShelfExitButton, kCloseAllWindows };
- LogoutConfirmationController();
- LogoutConfirmationController(const LogoutConfirmationController&) = delete;
- LogoutConfirmationController& operator=(const LogoutConfirmationController&) =
- delete;
- ~LogoutConfirmationController() override;
- static void RegisterProfilePrefs(PrefRegistrySimple* registry);
- const base::TickClock* clock() const { return clock_; }
- // Shows a LogoutConfirmationDialog. If a confirmation dialog is already being
- // shown, it is closed and a new one opened if |logout_time| is earlier than
- // the current dialog's |logout_time_|.
- void ConfirmLogout(base::TimeTicks logout_time, Source source);
- // SessionObserver:
- void OnLoginStatusChanged(LoginStatus login_status) override;
- void OnLockStateChanged(bool locked) override;
- // Called by the |dialog_| when the user confirms logout.
- void OnLogoutConfirmed();
- // Called by the |dialog_| when it is closed.
- void OnDialogClosed();
- // Overrides the internal clock for testing. This doesn't take the ownership
- // of the clock. |clock| must outlive the LogoutConfirmationController
- // instance.
- void SetClockForTesting(const base::TickClock* clock);
- void SetLogoutCallbackForTesting(
- const base::RepeatingCallback<void(Source)>& logout_callback);
- LogoutConfirmationDialog* dialog_for_testing() const { return dialog_; }
- int confirm_logout_count_for_test() const {
- return confirm_logout_count_for_test_;
- }
- private:
- class LastWindowClosedObserver;
- std::unique_ptr<LastWindowClosedObserver> last_window_closed_observer_;
- const base::TickClock* clock_;
- base::RepeatingCallback<void(Source)> logout_callback_;
- Source source_;
- base::TimeTicks logout_time_;
- LogoutConfirmationDialog* dialog_ = nullptr; // Owned by the Views hierarchy.
- base::OneShotTimer logout_timer_;
- int confirm_logout_count_for_test_ = 0;
- };
- } // namespace ash
- #endif // ASH_SYSTEM_SESSION_LOGOUT_CONFIRMATION_CONTROLLER_H_
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