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.
4
5 #include "apps/app_lifetime_monitor.h"
6
7 #include "apps/app_window.h"
8 #include "chrome/browser/chrome_notification_types.h"
9 #include "chrome/browser/profiles/profile.h"
10 #include "content/public/browser/notification_details.h"
11 #include "content/public/browser/notification_service.h"
12 #include "extensions/browser/extension_host.h"
13 #include "extensions/common/extension.h"
14
15 namespace apps {
16
17 using extensions::Extension;
18 using extensions::ExtensionHost;
19
AppLifetimeMonitor(Profile * profile)20 AppLifetimeMonitor::AppLifetimeMonitor(Profile* profile)
21 : profile_(profile) {
22 registrar_.Add(
23 this, chrome::NOTIFICATION_EXTENSION_HOST_DID_STOP_LOADING,
24 content::NotificationService::AllSources());
25 registrar_.Add(
26 this, chrome::NOTIFICATION_EXTENSION_HOST_DESTROYED,
27 content::NotificationService::AllSources());
28 registrar_.Add(
29 this, chrome::NOTIFICATION_APP_TERMINATING,
30 content::NotificationService::AllSources());
31
32 AppWindowRegistry* app_window_registry =
33 AppWindowRegistry::Factory::GetForBrowserContext(profile_,
34 false /* create */);
35 DCHECK(app_window_registry);
36 app_window_registry->AddObserver(this);
37 }
38
~AppLifetimeMonitor()39 AppLifetimeMonitor::~AppLifetimeMonitor() {}
40
AddObserver(Observer * observer)41 void AppLifetimeMonitor::AddObserver(Observer* observer) {
42 observers_.AddObserver(observer);
43 }
44
RemoveObserver(Observer * observer)45 void AppLifetimeMonitor::RemoveObserver(Observer* observer) {
46 observers_.RemoveObserver(observer);
47 }
48
Observe(int type,const content::NotificationSource & source,const content::NotificationDetails & details)49 void AppLifetimeMonitor::Observe(int type,
50 const content::NotificationSource& source,
51 const content::NotificationDetails& details) {
52 switch (type) {
53 case chrome::NOTIFICATION_EXTENSION_HOST_DID_STOP_LOADING: {
54 ExtensionHost* host = content::Details<ExtensionHost>(details).ptr();
55 const Extension* extension = host->extension();
56 if (!extension || !extension->is_platform_app())
57 return;
58
59 NotifyAppStart(extension->id());
60 break;
61 }
62
63 case chrome::NOTIFICATION_EXTENSION_HOST_DESTROYED: {
64 ExtensionHost* host = content::Details<ExtensionHost>(details).ptr();
65 const Extension* extension = host->extension();
66 if (!extension || !extension->is_platform_app())
67 return;
68
69 NotifyAppStop(extension->id());
70 break;
71 }
72
73 case chrome::NOTIFICATION_APP_TERMINATING: {
74 NotifyChromeTerminating();
75 break;
76 }
77 }
78 }
79
OnAppWindowRemoved(AppWindow * app_window)80 void AppLifetimeMonitor::OnAppWindowRemoved(AppWindow* app_window) {
81 if (!HasVisibleAppWindows(app_window))
82 NotifyAppDeactivated(app_window->extension_id());
83 }
84
OnAppWindowHidden(AppWindow * app_window)85 void AppLifetimeMonitor::OnAppWindowHidden(AppWindow* app_window) {
86 if (!HasVisibleAppWindows(app_window))
87 NotifyAppDeactivated(app_window->extension_id());
88 }
89
OnAppWindowShown(AppWindow * app_window)90 void AppLifetimeMonitor::OnAppWindowShown(AppWindow* app_window) {
91 if (app_window->window_type() != AppWindow::WINDOW_TYPE_DEFAULT)
92 return;
93
94 if (HasVisibleAppWindows(app_window))
95 NotifyAppActivated(app_window->extension_id());
96 }
97
Shutdown()98 void AppLifetimeMonitor::Shutdown() {
99 AppWindowRegistry* app_window_registry =
100 AppWindowRegistry::Factory::GetForBrowserContext(profile_,
101 false /* create */);
102 if (app_window_registry)
103 app_window_registry->RemoveObserver(this);
104 }
105
HasVisibleAppWindows(AppWindow * app_window) const106 bool AppLifetimeMonitor::HasVisibleAppWindows(AppWindow* app_window) const {
107 AppWindowRegistry::AppWindowList windows =
108 AppWindowRegistry::Get(app_window->browser_context())
109 ->GetAppWindowsForApp(app_window->extension_id());
110
111 for (AppWindowRegistry::AppWindowList::const_iterator i = windows.begin();
112 i != windows.end();
113 ++i) {
114 if (!(*i)->is_hidden())
115 return true;
116 }
117 return false;
118 }
119
NotifyAppStart(const std::string & app_id)120 void AppLifetimeMonitor::NotifyAppStart(const std::string& app_id) {
121 FOR_EACH_OBSERVER(Observer, observers_, OnAppStart(profile_, app_id));
122 }
123
NotifyAppActivated(const std::string & app_id)124 void AppLifetimeMonitor::NotifyAppActivated(const std::string& app_id) {
125 FOR_EACH_OBSERVER(Observer, observers_, OnAppActivated(profile_, app_id));
126 }
127
NotifyAppDeactivated(const std::string & app_id)128 void AppLifetimeMonitor::NotifyAppDeactivated(const std::string& app_id) {
129 FOR_EACH_OBSERVER(Observer, observers_, OnAppDeactivated(profile_, app_id));
130 }
131
NotifyAppStop(const std::string & app_id)132 void AppLifetimeMonitor::NotifyAppStop(const std::string& app_id) {
133 FOR_EACH_OBSERVER(Observer, observers_, OnAppStop(profile_, app_id));
134 }
135
NotifyChromeTerminating()136 void AppLifetimeMonitor::NotifyChromeTerminating() {
137 FOR_EACH_OBSERVER(Observer, observers_, OnChromeTerminating());
138 }
139
140 } // namespace apps
141