chrome/browser/extensions/install_tracker.h

   1 // Copyright 2013 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 CHROME_BROWSER_EXTENSIONS_INSTALL_TRACKER_H_
   6 #define CHROME_BROWSER_EXTENSIONS_INSTALL_TRACKER_H_
   7
   8 #include "base/observer_list.h"
   9 #include "base/prefs/pref_change_registrar.h"
  10 #include "base/scoped_observer.h"
  11 #include "chrome/browser/extensions/install_observer.h"
  12 #include "components/keyed_service/core/keyed_service.h"
  13 #include "content/public/browser/notification_observer.h"
  14 #include "content/public/browser/notification_registrar.h"
  15 #include "extensions/browser/extension_registry_observer.h"
  16
  17 class Profile;
  18
  19 namespace content {
  20 class BrowserContext;
  21 }
  22
  23 namespace extensions {
  24
  25 class ExtensionPrefs;
  26 class ExtensionRegistry;
  27
  28 class InstallTracker : public KeyedService,
  29                        public content::NotificationObserver,
  30                        public ExtensionRegistryObserver {
  31  public:
  32   InstallTracker(Profile* profile,
  33                  extensions::ExtensionPrefs* prefs);
  34   virtual ~InstallTracker();
  35
  36   static InstallTracker* Get(content::BrowserContext* context);
  37
  38   void AddObserver(InstallObserver* observer);
  39   void RemoveObserver(InstallObserver* observer);
  40
  41   void OnBeginExtensionInstall(
  42       const InstallObserver::ExtensionInstallParams& params);
  43   void OnBeginExtensionDownload(const std::string& extension_id);
  44   void OnDownloadProgress(const std::string& extension_id,
  45                           int percent_downloaded);
  46   void OnBeginCrxInstall(const std::string& extension_id);
  47   void OnFinishCrxInstall(const std::string& extension_id, bool success);
  48   void OnInstallFailure(const std::string& extension_id);
  49
  50   // Overriddes for KeyedService.
  51   virtual void Shutdown() OVERRIDE;
  52
  53  private:
  54   void OnAppsReordered();
  55
  56   // content::NotificationObserver.
  57   virtual void Observe(int type,
  58                        const content::NotificationSource& source,
  59                        const content::NotificationDetails& details) OVERRIDE;
  60
  61   // ExtensionRegistryObserver implementation.
  62   virtual void OnExtensionLoaded(content::BrowserContext* browser_context,
  63                                  const Extension* extension) OVERRIDE;
  64   virtual void OnExtensionUnloaded(
  65       content::BrowserContext* browser_context,
  66       const Extension* extension,
  67       UnloadedExtensionInfo::Reason reason) OVERRIDE;
  68
  69   ObserverList<InstallObserver> observers_;
  70   content::NotificationRegistrar registrar_;
  71   PrefChangeRegistrar pref_change_registrar_;
  72
  73   // Listen to extension load, unloaded notifications.
  74   ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
  75       extension_registry_observer_;
  76
  77   DISALLOW_COPY_AND_ASSIGN(InstallTracker);
  78 };
  79
  80 }  // namespace extensions
  81
  82 #endif  // CHROME_BROWSER_EXTENSIONS_INSTALL_TRACKER_H_