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 "chrome/browser/chrome_notification_types.h"
8 #include "chrome/browser/profiles/profile.h"
9 #include "content/public/browser/notification_details.h"
10 #include "content/public/browser/notification_service.h"
11 #include "extensions/browser/app_window/app_window.h"
12 #include "extensions/browser/extension_host.h"
13 #include "extensions/browser/notification_types.h"
14 #include "extensions/common/extension.h"
15
16 namespace apps {
17
18 using extensions::AppWindow;
19 using extensions::AppWindowRegistry;
20 using extensions::Extension;
21 using extensions::ExtensionHost;
22
AppLifetimeMonitor(Profile * profile)23 AppLifetimeMonitor::AppLifetimeMonitor(Profile* profile)
24 : profile_(profile) {
25 registrar_.Add(this,
26 extensions::NOTIFICATION_EXTENSION_HOST_DID_STOP_LOADING,
27 content::NotificationService::AllSources());
28 registrar_.Add(this,
29 extensions::NOTIFICATION_EXTENSION_HOST_DESTROYED,
30 content::NotificationService::AllSources());
31 registrar_.Add(
32 this, chrome::NOTIFICATION_APP_TERMINATING,
33 content::NotificationService::AllSources());
34
35 AppWindowRegistry* app_window_registry =
36 AppWindowRegistry::Factory::GetForBrowserContext(profile_,
37 false /* create */);
38 DCHECK(app_window_registry);
39 app_window_registry->AddObserver(this);
40 }
41
~AppLifetimeMonitor()42 AppLifetimeMonitor::~AppLifetimeMonitor() {}
43
AddObserver(Observer * observer)44 void AppLifetimeMonitor::AddObserver(Observer* observer) {
45 observers_.AddObserver(observer);
46 }
47
RemoveObserver(Observer * observer)48 void AppLifetimeMonitor::RemoveObserver(Observer* observer) {
49 observers_.RemoveObserver(observer);
50 }
51
Observe(int type,const content::NotificationSource & source,const content::NotificationDetails & details)52 void AppLifetimeMonitor::Observe(int type,
53 const content::NotificationSource& source,
54 const content::NotificationDetails& details) {
55 switch (type) {
56 case extensions::NOTIFICATION_EXTENSION_HOST_DID_STOP_LOADING: {
57 ExtensionHost* host = content::Details<ExtensionHost>(details).ptr();
58 const Extension* extension = host->extension();
59 if (!extension || !extension->is_platform_app())
60 return;
61
62 NotifyAppStart(extension->id());
63 break;
64 }
65
66 case extensions::NOTIFICATION_EXTENSION_HOST_DESTROYED: {
67 ExtensionHost* host = content::Details<ExtensionHost>(details).ptr();
68 const Extension* extension = host->extension();
69 if (!extension || !extension->is_platform_app())
70 return;
71
72 NotifyAppStop(extension->id());
73 break;
74 }
75
76 case chrome::NOTIFICATION_APP_TERMINATING: {
77 NotifyChromeTerminating();
78 break;
79 }
80 }
81 }
82
OnAppWindowRemoved(AppWindow * app_window)83 void AppLifetimeMonitor::OnAppWindowRemoved(AppWindow* app_window) {
84 if (!HasVisibleAppWindows(app_window))
85 NotifyAppDeactivated(app_window->extension_id());
86 }
87
OnAppWindowHidden(AppWindow * app_window)88 void AppLifetimeMonitor::OnAppWindowHidden(AppWindow* app_window) {
89 if (!HasVisibleAppWindows(app_window))
90 NotifyAppDeactivated(app_window->extension_id());
91 }
92
OnAppWindowShown(AppWindow * app_window)93 void AppLifetimeMonitor::OnAppWindowShown(AppWindow* app_window) {
94 if (app_window->window_type() != AppWindow::WINDOW_TYPE_DEFAULT)
95 return;
96
97 if (HasVisibleAppWindows(app_window))
98 NotifyAppActivated(app_window->extension_id());
99 }
100
Shutdown()101 void AppLifetimeMonitor::Shutdown() {
102 AppWindowRegistry* app_window_registry =
103 AppWindowRegistry::Factory::GetForBrowserContext(profile_,
104 false /* create */);
105 if (app_window_registry)
106 app_window_registry->RemoveObserver(this);
107 }
108
HasVisibleAppWindows(AppWindow * app_window) const109 bool AppLifetimeMonitor::HasVisibleAppWindows(AppWindow* app_window) const {
110 AppWindowRegistry::AppWindowList windows =
111 AppWindowRegistry::Get(app_window->browser_context())
112 ->GetAppWindowsForApp(app_window->extension_id());
113
114 for (AppWindowRegistry::AppWindowList::const_iterator i = windows.begin();
115 i != windows.end();
116 ++i) {
117 if (!(*i)->is_hidden())
118 return true;
119 }
120 return false;
121 }
122
NotifyAppStart(const std::string & app_id)123 void AppLifetimeMonitor::NotifyAppStart(const std::string& app_id) {
124 FOR_EACH_OBSERVER(Observer, observers_, OnAppStart(profile_, app_id));
125 }
126
NotifyAppActivated(const std::string & app_id)127 void AppLifetimeMonitor::NotifyAppActivated(const std::string& app_id) {
128 FOR_EACH_OBSERVER(Observer, observers_, OnAppActivated(profile_, app_id));
129 }
130
NotifyAppDeactivated(const std::string & app_id)131 void AppLifetimeMonitor::NotifyAppDeactivated(const std::string& app_id) {
132 FOR_EACH_OBSERVER(Observer, observers_, OnAppDeactivated(profile_, app_id));
133 }
134
NotifyAppStop(const std::string & app_id)135 void AppLifetimeMonitor::NotifyAppStop(const std::string& app_id) {
136 FOR_EACH_OBSERVER(Observer, observers_, OnAppStop(profile_, app_id));
137 }
138
NotifyChromeTerminating()139 void AppLifetimeMonitor::NotifyChromeTerminating() {
140 FOR_EACH_OBSERVER(Observer, observers_, OnChromeTerminating());
141 }
142
143 } // namespace apps
144