1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef ASH_SYSTEM_CHROMEOS_SESSION_LOGOUT_BUTTON_OBSERVER_H_
6#define ASH_SYSTEM_CHROMEOS_SESSION_LOGOUT_BUTTON_OBSERVER_H_
7
8#include "ash/ash_export.h"
9#include "base/time/time.h"
10
11namespace ash {
12
13class ASH_EXPORT LogoutButtonObserver {
14 public:
15  virtual ~LogoutButtonObserver() {}
16
17  // Called when the value of the kShowLogoutButtonInTray pref changes, which
18  // determines whether a logout button should be shown in the system tray
19  // during a session.
20  virtual void OnShowLogoutButtonInTrayChanged(bool show) = 0;
21
22  // Called when the value of the kLogoutDialogDurationMs pref changes.
23  // |duration| is the duration for which the logout confirmation dialog is
24  // shown after the user has pressed the logout button.
25  virtual void OnLogoutDialogDurationChanged(base::TimeDelta duration) = 0;
26};
27
28}  // namespace ash
29
30#endif  // ASH_SYSTEM_CHROMEOS_SESSION_LOGOUT_BUTTON_OBSERVER_H_
31