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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_H_ | |
6 #define ATHENA_ACTIVITY_PUBLIC_ACTIVITY_MANAGER_H_ | |
7 | |
8 #include <vector> | |
9 | |
10 #include "athena/athena_export.h" | |
11 | |
12 namespace aura { | |
13 class Window; | |
14 } | |
15 | |
16 namespace athena { | |
17 | |
18 class Activity; | |
19 class ActivityManagerObserver; | |
20 | |
21 using ActivityList = std::vector<Activity*>; | |
22 | |
23 // Manages a set of activities. | |
24 class ATHENA_EXPORT ActivityManager { | |
25 public: | |
26 static ActivityManager* Create(); | |
27 static ActivityManager* Get(); | |
28 static void Shutdown(); | |
29 | |
30 virtual ~ActivityManager() {} | |
31 | |
32 // Adds/Removes an activity. ActivityManager owns the activities. | |
33 virtual void AddActivity(Activity* activity) = 0; | |
34 virtual void RemoveActivity(Activity* activity) = 0; | |
35 | |
36 // Returns a list of activities, sorted in their activation order (the most | |
37 // recently used activity is at the front of the returned list). | |
38 virtual const ActivityList& GetActivityList() = 0; | |
39 | |
40 // Returns the activity that has a |window| as toplevel window, or | |
41 // nullptr if such activity does not exist. | |
42 virtual Activity* GetActivityForWindow(aura::Window* window) = 0; | |
43 | |
44 virtual void AddObserver(ActivityManagerObserver* observer) = 0; | |
45 virtual void RemoveObserver(ActivityManagerObserver* observer) = 0; | |
46 }; | |
47 | |
48 } // namespace athena | |
49 | |
50 #endif // ATHENA_ACTIVITY_PUBLIC_ACTIVITY_MANAGER_H_ | |
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