Change ServiceManager::SetLoaderForUrl() to SetLoaderForScheme()
[chromium-blink-merge.git] / apps / app_lifetime_monitor.h
blobfe63514e2c6d51f74eae775106ab2b3f2df74de1
1 // Copyright 2013 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.
5 #ifndef APPS_APP_LIFETIME_MONITOR_H_
6 #define APPS_APP_LIFETIME_MONITOR_H_
8 #include <string>
9 #include <vector>
11 #include "apps/app_window_registry.h"
12 #include "base/observer_list.h"
13 #include "components/keyed_service/core/keyed_service.h"
14 #include "content/public/browser/notification_observer.h"
15 #include "content/public/browser/notification_registrar.h"
17 namespace extensions {
18 class Extension;
21 class Profile;
23 namespace apps {
25 // Observes startup of apps and their windows and notifies observers of these
26 // events.
27 class AppLifetimeMonitor : public KeyedService,
28 public content::NotificationObserver,
29 public AppWindowRegistry::Observer {
30 public:
31 class Observer {
32 public:
33 // Called when the app starts running.
34 virtual void OnAppStart(Profile* profile, const std::string& app_id) = 0;
35 // Called when the app becomes active to the user, i.e. it opens a window.
36 virtual void OnAppActivated(Profile* profile,
37 const std::string& app_id) = 0;
38 // Called when the app becomes inactive to the user.
39 virtual void OnAppDeactivated(Profile* profile,
40 const std::string& app_id) = 0;
41 // Called when the app stops running.
42 virtual void OnAppStop(Profile* profile, const std::string& app_id) = 0;
43 // Called when chrome is about to terminate. This gives observers a chance
44 // to do something before the apps shut down. This is a system-wide event
45 // so there is no associated profile and app id.
46 virtual void OnChromeTerminating() = 0;
48 protected:
49 virtual ~Observer() {}
52 explicit AppLifetimeMonitor(Profile* profile);
53 virtual ~AppLifetimeMonitor();
55 void AddObserver(Observer* observer);
56 void RemoveObserver(Observer* observer);
58 private:
59 // content::NotificationObserver overrides:
60 virtual void Observe(int type,
61 const content::NotificationSource& source,
62 const content::NotificationDetails& details) OVERRIDE;
64 // AppWindowRegistry::Observer overrides:
65 virtual void OnAppWindowAdded(AppWindow* app_window) OVERRIDE;
66 virtual void OnAppWindowIconChanged(AppWindow* app_window) OVERRIDE;
67 virtual void OnAppWindowRemoved(AppWindow* app_window) OVERRIDE;
69 // KeyedService overrides:
70 virtual void Shutdown() OVERRIDE;
72 void NotifyAppStart(const std::string& app_id);
73 void NotifyAppActivated(const std::string& app_id);
74 void NotifyAppDeactivated(const std::string& app_id);
75 void NotifyAppStop(const std::string& app_id);
76 void NotifyChromeTerminating();
78 content::NotificationRegistrar registrar_;
79 Profile* profile_;
80 ObserverList<Observer> observers_;
82 DISALLOW_COPY_AND_ASSIGN(AppLifetimeMonitor);
85 } // namespace apps
87 #endif // APPS_APP_LIFETIME_MONITOR_H_