chrome/browser/ui/webui/help/version_updater_chromeos.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 CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_CHROMEOS_H_
   6 #define CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_CHROMEOS_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "base/memory/weak_ptr.h"
  10 #include "chrome/browser/ui/webui/help/version_updater.h"
  11 #include "chromeos/dbus/update_engine_client.h"
  12
  13 class VersionUpdaterCros : public VersionUpdater,
  14                            public chromeos::UpdateEngineClient::Observer {
  15  public:
  16   // VersionUpdater implementation.
  17   virtual void CheckForUpdate(const StatusCallback& callback) OVERRIDE;
  18   virtual void RelaunchBrowser() const OVERRIDE;
  19   virtual void SetChannel(const std::string& channel,
  20                           bool is_powerwash_allowed) OVERRIDE;
  21   virtual void GetChannel(bool get_current_channel,
  22                           const ChannelCallback& callback) OVERRIDE;
  23
  24  protected:
  25   friend class VersionUpdater;
  26
  27   // Clients must use VersionUpdater::Create().
  28   VersionUpdaterCros();
  29   virtual ~VersionUpdaterCros();
  30
  31  private:
  32   // UpdateEngineClient::Observer implementation.
  33   virtual void UpdateStatusChanged(
  34       const chromeos::UpdateEngineClient::Status& status) OVERRIDE;
  35
  36   // Callback from UpdateEngineClient::RequestUpdateCheck().
  37   void OnUpdateCheck(chromeos::UpdateEngineClient::UpdateCheckResult result);
  38
  39   // Callback used to communicate update status to the client.
  40   StatusCallback callback_;
  41
  42   // Last state received via UpdateStatusChanged().
  43   chromeos::UpdateEngineClient::UpdateStatusOperation last_operation_;
  44
  45   base::WeakPtrFactory<VersionUpdaterCros> weak_ptr_factory_;
  46
  47   DISALLOW_COPY_AND_ASSIGN(VersionUpdaterCros);
  48 };
  49
  50 #endif  // CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_CHROMEOS_H_