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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 ATHENA_ACTIVITY_PUBLIC_ACTIVITY_MANAGER_OBSERVER_H_ | |
6 #define ATHENA_ACTIVITY_PUBLIC_ACTIVITY_MANAGER_OBSERVER_H_ | |
7 | |
8 #include "athena/athena_export.h" | |
9 | |
10 namespace athena { | |
11 | |
12 class Activity; | |
13 | |
14 class ATHENA_EXPORT ActivityManagerObserver { | |
15 public: | |
16 virtual ~ActivityManagerObserver() {} | |
17 | |
18 // Called after an |activity| got created. | |
19 virtual void OnActivityStarted(Activity* activity) = 0; | |
20 | |
21 // Called before an |activity| gets destroyed. | |
22 virtual void OnActivityEnding(Activity* activity) = 0; | |
23 | |
24 // Called when the order of the activities in the list has changed. | |
25 virtual void OnActivityOrderChanged() = 0; | |
26 }; | |
27 | |
28 } // namespace athena | |
29 | |
30 #endif // ATHENA_ACTIVITY_PUBLIC_ACTIVITY_MANAGER_OBSERVER_H_ | |
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