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