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   void CheckForUpdate(const StatusCallback& callback) override;
  18   void RelaunchBrowser() const override;
  19   void SetChannel(const std::string& channel,
  20                   bool is_powerwash_allowed) override;
  21   void GetChannel(bool get_current_channel,
  22                   const ChannelCallback& callback) override;
  23
  24   // Gets the last update status, without triggering a new check or download.
  25   void GetUpdateStatus(const StatusCallback& callback);
  26
  27  protected:
  28   friend class VersionUpdater;
  29
  30   // Clients must use VersionUpdater::Create().
  31   explicit VersionUpdaterCros(content::BrowserContext* context);
  32   ~VersionUpdaterCros() override;
  33
  34  private:
  35   // UpdateEngineClient::Observer implementation.
  36   void UpdateStatusChanged(
  37       const chromeos::UpdateEngineClient::Status& status) override;
  38
  39   // Callback from UpdateEngineClient::RequestUpdateCheck().
  40   void OnUpdateCheck(chromeos::UpdateEngineClient::UpdateCheckResult result);
  41
  42   // BrowserContext in which the class was instantiated.
  43   content::BrowserContext* context_;
  44
  45   // Callback used to communicate update status to the client.
  46   StatusCallback callback_;
  47
  48   // Last state received via UpdateStatusChanged().
  49   chromeos::UpdateEngineClient::UpdateStatusOperation last_operation_;
  50
  51   // True if an update check should be scheduled when the update engine is idle.
  52   bool check_for_update_when_idle_;
  53
  54   base::WeakPtrFactory<VersionUpdaterCros> weak_ptr_factory_;
  55
  56   DISALLOW_COPY_AND_ASSIGN(VersionUpdaterCros);
  57 };
  58
  59 #endif  // CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_CHROMEOS_H_