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 namespace content {
  14 class BrowserContext;
  15 class WebContents;
  16 }
  17
  18 class VersionUpdaterCros : public VersionUpdater,
  19                            public chromeos::UpdateEngineClient::Observer {
  20  public:
  21   // VersionUpdater implementation.
  22   void CheckForUpdate(const StatusCallback& callback) override;
  23   void RelaunchBrowser() const override;
  24   void SetChannel(const std::string& channel,
  25                   bool is_powerwash_allowed) override;
  26   void GetChannel(bool get_current_channel,
  27                   const ChannelCallback& callback) override;
  28
  29   // Gets the last update status, without triggering a new check or download.
  30   void GetUpdateStatus(const StatusCallback& callback);
  31
  32  protected:
  33   friend class VersionUpdater;
  34
  35   // Clients must use VersionUpdater::Create().
  36   explicit VersionUpdaterCros(content::WebContents* web_contents);
  37   ~VersionUpdaterCros() override;
  38
  39  private:
  40   // UpdateEngineClient::Observer implementation.
  41   void UpdateStatusChanged(
  42       const chromeos::UpdateEngineClient::Status& status) override;
  43
  44   // Callback from UpdateEngineClient::RequestUpdateCheck().
  45   void OnUpdateCheck(chromeos::UpdateEngineClient::UpdateCheckResult result);
  46
  47   // BrowserContext in which the class was instantiated.
  48   content::BrowserContext* context_;
  49
  50   // Callback used to communicate update status to the client.
  51   StatusCallback callback_;
  52
  53   // Last state received via UpdateStatusChanged().
  54   chromeos::UpdateEngineClient::UpdateStatusOperation last_operation_;
  55
  56   // True if an update check should be scheduled when the update engine is idle.
  57   bool check_for_update_when_idle_;
  58
  59   base::WeakPtrFactory<VersionUpdaterCros> weak_ptr_factory_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(VersionUpdaterCros);
  62 };
  63
  64 #endif  // CHROME_BROWSER_UI_WEBUI_HELP_VERSION_UPDATER_CHROMEOS_H_