apps/app_restore_service.h

   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 #ifndef APPS_APP_RESTORE_SERVICE_H_
   6 #define APPS_APP_RESTORE_SERVICE_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "apps/app_lifetime_monitor.h"
  12 #include "components/keyed_service/core/keyed_service.h"
  13 #include "extensions/browser/app_window/app_window_registry.h"
  14
  15 namespace extensions {
  16 class Extension;
  17 }
  18
  19 class Profile;
  20
  21 namespace apps {
  22
  23 // Tracks what apps need to be restarted when the browser restarts.
  24 class AppRestoreService : public KeyedService,
  25                           public AppLifetimeMonitor::Observer {
  26  public:
  27   // Returns true if apps should be restored on the current platform, given
  28   // whether this new browser process launched due to a restart.
  29   static bool ShouldRestoreApps(bool is_browser_restart);
  30
  31   explicit AppRestoreService(Profile* profile);
  32
  33   // Restart apps that need to be restarted and clear the "running" preference
  34   // from apps to prevent them being restarted in subsequent restarts.
  35   void HandleStartup(bool should_restore_apps);
  36
  37   // Returns whether this extension is running or, at startup, whether it was
  38   // running when Chrome was last terminated.
  39   bool IsAppRestorable(const std::string& extension_id);
  40
  41   static AppRestoreService* Get(Profile* profile);
  42
  43  private:
  44   // AppLifetimeMonitor::Observer.
  45   virtual void OnAppStart(Profile* profile, const std::string& app_id) OVERRIDE;
  46   virtual void OnAppActivated(Profile* profile,
  47                               const std::string& app_id) OVERRIDE;
  48   virtual void OnAppDeactivated(Profile* profile,
  49                                 const std::string& app_id) OVERRIDE;
  50   virtual void OnAppStop(Profile* profile, const std::string& app_id) OVERRIDE;
  51   virtual void OnChromeTerminating() OVERRIDE;
  52
  53   // KeyedService.
  54   virtual void Shutdown() OVERRIDE;
  55
  56   void RecordAppStart(const std::string& extension_id);
  57   void RecordAppStop(const std::string& extension_id);
  58   void RecordAppActiveState(const std::string& id, bool is_active);
  59
  60   void RestoreApp(const extensions::Extension* extension);
  61
  62   void StartObservingAppLifetime();
  63   void StopObservingAppLifetime();
  64
  65   Profile* profile_;
  66
  67   DISALLOW_COPY_AND_ASSIGN(AppRestoreService);
  68 };
  69
  70 }  // namespace apps
  71
  72 #endif  // APPS_APP_RESTORE_SERVICE_H_