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