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1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef ASH_SESSION_SESSION_STATE_OBSERVER_H_ | 5 #ifndef ASH_SESSION_SESSION_STATE_OBSERVER_H_ |
6 #define ASH_SESSION_SESSION_STATE_OBSERVER_H_ | 6 #define ASH_SESSION_SESSION_STATE_OBSERVER_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "ash/ash_export.h" | 10 #include "ash/ash_export.h" |
11 #include "ash/session/session_state_delegate.h" | 11 #include "ash/session/session_state_delegate.h" |
12 #include "base/basictypes.h" | 12 #include "base/basictypes.h" |
13 | 13 |
| 14 class AccountId; |
| 15 |
14 namespace ash { | 16 namespace ash { |
15 | 17 |
16 class ASH_EXPORT SessionStateObserver { | 18 class ASH_EXPORT SessionStateObserver { |
17 public: | 19 public: |
18 // Called when active user has changed. | 20 // Called when active user has changed. |
19 virtual void ActiveUserChanged(const std::string& user_id) {} | 21 virtual void ActiveUserChanged(const AccountId& account_id) {} |
20 | 22 |
21 // Called when another user gets added to the existing session. | 23 // Called when another user gets added to the existing session. |
22 virtual void UserAddedToSession(const std::string& user_id) {} | 24 virtual void UserAddedToSession(const AccountId& account_id) {} |
23 | 25 |
24 // Called when session state is changed. | 26 // Called when session state is changed. |
25 virtual void SessionStateChanged(SessionStateDelegate::SessionState state) {} | 27 virtual void SessionStateChanged(SessionStateDelegate::SessionState state) {} |
26 | 28 |
27 protected: | 29 protected: |
28 virtual ~SessionStateObserver() {} | 30 virtual ~SessionStateObserver() {} |
29 }; | 31 }; |
30 | 32 |
31 // A class to attach / detach an object as a session state observer with a | 33 // A class to attach / detach an object as a session state observer with a |
32 // scoped pointer. | 34 // scoped pointer. |
33 class ASH_EXPORT ScopedSessionStateObserver { | 35 class ASH_EXPORT ScopedSessionStateObserver { |
34 public: | 36 public: |
35 explicit ScopedSessionStateObserver(ash::SessionStateObserver* observer); | 37 explicit ScopedSessionStateObserver(ash::SessionStateObserver* observer); |
36 virtual ~ScopedSessionStateObserver(); | 38 virtual ~ScopedSessionStateObserver(); |
37 | 39 |
38 private: | 40 private: |
39 ash::SessionStateObserver* observer_; | 41 ash::SessionStateObserver* observer_; |
40 | 42 |
41 DISALLOW_COPY_AND_ASSIGN(ScopedSessionStateObserver); | 43 DISALLOW_COPY_AND_ASSIGN(ScopedSessionStateObserver); |
42 }; | 44 }; |
43 | 45 |
44 } // namespace ash | 46 } // namespace ash |
45 | 47 |
46 #endif // ASH_SESSION_SESSION_STATE_OBSERVER_H_ | 48 #endif // ASH_SESSION_SESSION_STATE_OBSERVER_H_ |
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