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/profiles/profile.h"
  16 #include "extensions/browser/extension_prefs.h"
  17 #include "extensions/browser/extension_registry.h"
  18 #include "extensions/common/extension.h"
  19 #include "extensions/common/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::ExtensionRegistry;
  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   const extensions::ExtensionSet& extensions =
  53       ExtensionRegistry::Get(profile_)->enabled_extensions();
  54   ExtensionPrefs* extension_prefs = ExtensionPrefs::Get(profile_);
  55
  56   for (extensions::ExtensionSet::const_iterator it = extensions.begin();
  57       it != extensions.end(); ++it) {
  58     const Extension* extension = it->get();
  59     if (extension_prefs->IsExtensionRunning(extension->id())) {
  60       RecordAppStop(extension->id());
  61       // If we are not restoring apps (e.g., because it is a clean restart), and
  62       // the app does not have retain permission, explicitly clear the retained
  63       // entries queue.
  64       if (should_restore_apps) {
  65         RestoreApp(it->get());
  66       } else {
  67         SavedFilesService::Get(profile_)->ClearQueueIfNoRetainPermission(
  68             extension);
  69       }
  70     }
  71   }
  72 }
  73
  74 bool AppRestoreService::IsAppRestorable(const std::string& extension_id) {
  75   return ExtensionPrefs::Get(profile_)->IsExtensionRunning(extension_id);
  76 }
  77
  78 // static
  79 AppRestoreService* AppRestoreService::Get(Profile* profile) {
  80   return apps::AppRestoreServiceFactory::GetForProfile(profile);
  81 }
  82
  83 void AppRestoreService::OnAppStart(Profile* profile,
  84                                    const std::string& app_id) {
  85   RecordAppStart(app_id);
  86 }
  87
  88 void AppRestoreService::OnAppActivated(Profile* profile,
  89                                        const std::string& app_id) {
  90   RecordAppActiveState(app_id, true);
  91 }
  92
  93 void AppRestoreService::OnAppDeactivated(Profile* profile,
  94                                          const std::string& app_id) {
  95   RecordAppActiveState(app_id, false);
  96 }
  97
  98 void AppRestoreService::OnAppStop(Profile* profile, const std::string& app_id) {
  99   RecordAppStop(app_id);
 100 }
 101
 102 void AppRestoreService::OnChromeTerminating() {
 103   // We want to preserve the state when the app begins terminating, so stop
 104   // listening to app lifetime events.
 105   StopObservingAppLifetime();
 106 }
 107
 108 void AppRestoreService::Shutdown() {
 109   StopObservingAppLifetime();
 110 }
 111
 112 void AppRestoreService::RecordAppStart(const std::string& extension_id) {
 113   ExtensionPrefs::Get(profile_)->SetExtensionRunning(extension_id, true);
 114 }
 115
 116 void AppRestoreService::RecordAppStop(const std::string& extension_id) {
 117   ExtensionPrefs::Get(profile_)->SetExtensionRunning(extension_id, false);
 118 }
 119
 120 void AppRestoreService::RecordAppActiveState(const std::string& id,
 121                                              bool is_active) {
 122   ExtensionPrefs* extension_prefs = ExtensionPrefs::Get(profile_);
 123
 124   // If the extension isn't running then we will already have recorded whether
 125   // it is active or not.
 126   if (!extension_prefs->IsExtensionRunning(id))
 127     return;
 128
 129   extension_prefs->SetIsActive(id, is_active);
 130 }
 131
 132 void AppRestoreService::RestoreApp(const Extension* extension) {
 133   RestartPlatformApp(profile_, extension);
 134 }
 135
 136 void AppRestoreService::StartObservingAppLifetime() {
 137   AppLifetimeMonitor* app_lifetime_monitor =
 138       AppLifetimeMonitorFactory::GetForProfile(profile_);
 139   DCHECK(app_lifetime_monitor);
 140   app_lifetime_monitor->AddObserver(this);
 141 }
 142
 143 void AppRestoreService::StopObservingAppLifetime() {
 144   AppLifetimeMonitor* app_lifetime_monitor =
 145       AppLifetimeMonitorFactory::GetForProfile(profile_);
 146   // This might be NULL in tests.
 147   if (app_lifetime_monitor)
 148     app_lifetime_monitor->RemoveObserver(this);
 149 }
 150
 151 }  // namespace apps