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 <map>
   9
  10 #include "base/observer_list.h"
  11 #include "base/prefs/pref_change_registrar.h"
  12 #include "base/scoped_observer.h"
  13 #include "chrome/browser/extensions/active_install_data.h"
  14 #include "chrome/browser/extensions/install_observer.h"
  15 #include "components/keyed_service/core/keyed_service.h"
  16 #include "content/public/browser/notification_observer.h"
  17 #include "content/public/browser/notification_registrar.h"
  18 #include "extensions/browser/extension_registry_observer.h"
  19
  20 namespace content {
  21 class BrowserContext;
  22 }
  23
  24 namespace extensions {
  25
  26 class ExtensionPrefs;
  27 class ExtensionRegistry;
  28
  29 class InstallTracker : public KeyedService,
  30                        public content::NotificationObserver,
  31                        public ExtensionRegistryObserver {
  32  public:
  33   InstallTracker(content::BrowserContext* browser_context,
  34                  extensions::ExtensionPrefs* prefs);
  35   ~InstallTracker() override;
  36
  37   static InstallTracker* Get(content::BrowserContext* context);
  38
  39   void AddObserver(InstallObserver* observer);
  40   void RemoveObserver(InstallObserver* observer);
  41
  42   // If an install is currently in progress for |extension_id|, returns details
  43   // of the installation. This instance retains ownership of the returned
  44   // pointer. Returns NULL if the extension is not currently being installed.
  45   const ActiveInstallData* GetActiveInstall(
  46       const std::string& extension_id) const;
  47
  48   // Registers an install initiated by the user to allow checking of duplicate
  49   // installs. Download of the extension has not necessarily started.
  50   // RemoveActiveInstall() must be called when install is complete regardless of
  51   // success or failure. Consider using ScopedActiveInstall rather than calling
  52   // this directly.
  53   void AddActiveInstall(const ActiveInstallData& install_data);
  54
  55   // Deregisters an active install.
  56   void RemoveActiveInstall(const std::string& extension_id);
  57
  58   void OnBeginExtensionInstall(
  59       const InstallObserver::ExtensionInstallParams& params);
  60   void OnBeginExtensionDownload(const std::string& extension_id);
  61   void OnDownloadProgress(const std::string& extension_id,
  62                           int percent_downloaded);
  63   void OnBeginCrxInstall(const std::string& extension_id);
  64   void OnFinishCrxInstall(const std::string& extension_id, bool success);
  65   void OnInstallFailure(const std::string& extension_id);
  66
  67   // NOTE(limasdf): For extension [un]load and [un]installed, use
  68   //                ExtensionRegistryObserver.
  69
  70   // Overriddes for KeyedService.
  71   void Shutdown() override;
  72
  73  private:
  74   void OnAppsReordered();
  75
  76   // content::NotificationObserver implementation.
  77   void Observe(int type,
  78                const content::NotificationSource& source,
  79                const content::NotificationDetails& details) override;
  80
  81   // ExtensionRegistryObserver implementation.
  82   void OnExtensionInstalled(content::BrowserContext* browser_context,
  83                             const Extension* extension,
  84                             bool is_update) override;
  85
  86   // Maps extension id to the details of an active install.
  87   typedef std::map<std::string, ActiveInstallData> ActiveInstallsMap;
  88   ActiveInstallsMap active_installs_;
  89
  90   base::ObserverList<InstallObserver> observers_;
  91   content::NotificationRegistrar registrar_;
  92   PrefChangeRegistrar pref_change_registrar_;
  93   ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
  94       extension_registry_observer_;
  95
  96   DISALLOW_COPY_AND_ASSIGN(InstallTracker);
  97 };
  98
  99 }  // namespace extensions
 100
 101 #endif  // CHROME_BROWSER_EXTENSIONS_INSTALL_TRACKER_H_