apps/app_restore_service.cc

   1 // Copyright (c) 2012 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_restore_service.h"
   6
   7 #include "apps/app_lifetime_monitor_factory.h"
   8 #include "apps/app_restore_service_factory.h"
   9 #include "apps/launcher.h"
  10 #include "apps/saved_files_service.h"
  11 #include "apps/shell_window.h"
  12 #include "chrome/browser/chrome_notification_types.h"
  13 #include "chrome/browser/extensions/api/app_runtime/app_runtime_api.h"
  14 #include "chrome/browser/extensions/extension_host.h"
  15 #include "chrome/browser/extensions/extension_prefs.h"
  16 #include "chrome/browser/extensions/extension_service.h"
  17 #include "chrome/browser/extensions/extension_system.h"
  18 #include "chrome/common/extensions/extension.h"
  19 #include "chrome/common/extensions/extension_set.h"
  20
  21 #if defined(OS_WIN)
  22 #include "win8/util/win8_util.h"
  23 #endif
  24
  25 using extensions::Extension;
  26 using extensions::ExtensionHost;
  27 using extensions::ExtensionPrefs;
  28 using extensions::ExtensionSystem;
  29
  30 namespace apps {
  31
  32 // static
  33 bool AppRestoreService::ShouldRestoreApps(bool is_browser_restart) {
  34   bool should_restore_apps = is_browser_restart;
  35 #if defined(OS_CHROMEOS)
  36   // Chromeos always restarts apps, even if it was a regular shutdown.
  37   should_restore_apps = true;
  38 #elif defined(OS_WIN)
  39   // Packaged apps are not supported in Metro mode, so don't try to start them.
  40   if (win8::IsSingleWindowMetroMode())
  41     should_restore_apps = false;
  42 #endif
  43   return should_restore_apps;
  44 }
  45
  46 AppRestoreService::AppRestoreService(Profile* profile)
  47     : profile_(profile) {
  48   StartObservingAppLifetime();
  49 }
  50
  51 void AppRestoreService::HandleStartup(bool should_restore_apps) {
  52   ExtensionService* extension_service =
  53       ExtensionSystem::Get(profile_)->extension_service();
  54   const ExtensionSet* extensions = extension_service->extensions();
  55   ExtensionPrefs* extension_prefs = extension_service->extension_prefs();
  56
  57   for (ExtensionSet::const_iterator it = extensions->begin();
  58       it != extensions->end(); ++it) {
  59     const Extension* extension = it->get();
  60     if (extension_prefs->IsExtensionRunning(extension->id())) {
  61       RecordAppStop(extension->id());
  62       // If we are not restoring apps (e.g., because it is a clean restart), and
  63       // the app does not have retain permission, explicitly clear the retained
  64       // entries queue.
  65       if (should_restore_apps) {
  66         RestoreApp(it->get());
  67       } else {
  68         SavedFilesService::Get(profile_)->ClearQueueIfNoRetainPermission(
  69             extension);
  70       }
  71     }
  72   }
  73 }
  74
  75 bool AppRestoreService::IsAppRestorable(const std::string& extension_id) {
  76   return extensions::ExtensionPrefs::Get(profile_) ->IsExtensionRunning(
  77       extension_id);
  78 }
  79
  80 // static
  81 AppRestoreService* AppRestoreService::Get(Profile* profile) {
  82   return apps::AppRestoreServiceFactory::GetForProfile(profile);
  83 }
  84
  85 void AppRestoreService::OnAppStart(Profile* profile,
  86                                    const std::string& app_id) {
  87   RecordAppStart(app_id);
  88 }
  89
  90 void AppRestoreService::OnAppActivated(Profile* profile,
  91                                        const std::string& app_id) {
  92   RecordAppActiveState(app_id, true);
  93 }
  94
  95 void AppRestoreService::OnAppDeactivated(Profile* profile,
  96                                          const std::string& app_id) {
  97   RecordAppActiveState(app_id, false);
  98 }
  99
 100 void AppRestoreService::OnAppStop(Profile* profile, const std::string& app_id) {
 101   RecordAppStop(app_id);
 102 }
 103
 104 void AppRestoreService::OnChromeTerminating() {
 105   // We want to preserve the state when the app begins terminating, so stop
 106   // listening to app lifetime events.
 107   StopObservingAppLifetime();
 108 }
 109
 110 void AppRestoreService::Shutdown() {
 111   StopObservingAppLifetime();
 112 }
 113
 114 void AppRestoreService::RecordAppStart(const std::string& extension_id) {
 115   ExtensionPrefs* extension_prefs =
 116       ExtensionSystem::Get(profile_)->extension_service()->extension_prefs();
 117   extension_prefs->SetExtensionRunning(extension_id, true);
 118 }
 119
 120 void AppRestoreService::RecordAppStop(const std::string& extension_id) {
 121   ExtensionPrefs* extension_prefs =
 122       ExtensionSystem::Get(profile_)->extension_service()->extension_prefs();
 123   extension_prefs->SetExtensionRunning(extension_id, false);
 124 }
 125
 126 void AppRestoreService::RecordAppActiveState(const std::string& id,
 127                                              bool is_active) {
 128   ExtensionService* extension_service =
 129       ExtensionSystem::Get(profile_)->extension_service();
 130   ExtensionPrefs* extension_prefs = extension_service->extension_prefs();
 131
 132   // If the extension isn't running then we will already have recorded whether
 133   // it is active or not.
 134   if (!extension_prefs->IsExtensionRunning(id))
 135     return;
 136
 137   extension_prefs->SetIsActive(id, is_active);
 138 }
 139
 140 void AppRestoreService::RestoreApp(const Extension* extension) {
 141   RestartPlatformApp(profile_, extension);
 142 }
 143
 144 void AppRestoreService::StartObservingAppLifetime() {
 145   AppLifetimeMonitor* app_lifetime_monitor =
 146       AppLifetimeMonitorFactory::GetForProfile(profile_);
 147   DCHECK(app_lifetime_monitor);
 148   app_lifetime_monitor->AddObserver(this);
 149 }
 150
 151 void AppRestoreService::StopObservingAppLifetime() {
 152   AppLifetimeMonitor* app_lifetime_monitor =
 153       AppLifetimeMonitorFactory::GetForProfile(profile_);
 154   // This might be NULL in tests.
 155   if (app_lifetime_monitor)
 156     app_lifetime_monitor->RemoveObserver(this);
 157 }
 158
 159 }  // namespace apps