chrome/browser/chromeos/login/screens/update_screen_actor.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_CHROMEOS_LOGIN_SCREENS_UPDATE_SCREEN_ACTOR_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_UPDATE_SCREEN_ACTOR_H_
   7
   8 #include "base/time/time.h"
   9
  10 namespace chromeos {
  11
  12 class UpdateScreenActor {
  13  public:
  14   // Indices for corresponding info messages during update stage.
  15   enum ProgressMessage {
  16     PROGRESS_MESSAGE_UPDATE_AVAILABLE = 0,
  17     PROGRESS_MESSAGE_INSTALLING_UPDATE,
  18     PROGRESS_MESSAGE_VERIFYING,
  19     PROGRESS_MESSAGE_FINALIZING
  20   };
  21
  22   class Delegate {
  23    public:
  24     virtual ~Delegate() {}
  25     // Force cancel update.
  26     virtual void CancelUpdate() = 0;
  27     virtual void OnActorDestroyed(UpdateScreenActor* actor) = 0;
  28     virtual void OnConnectToNetworkRequested(
  29         const std::string& service_path) = 0;
  30   };
  31
  32   virtual ~UpdateScreenActor() {}
  33
  34   // Sets screen this actor belongs to.
  35   virtual void SetDelegate(Delegate* screen) = 0;
  36
  37   // Shows the screen.
  38   virtual void Show() = 0;
  39
  40   // Hides the screen.
  41   virtual void Hide() = 0;
  42
  43   virtual void PrepareToShow() = 0;
  44
  45   // Shows manual reboot info message.
  46   virtual void ShowManualRebootInfo() = 0;
  47
  48   // Sets current progress in percents.
  49   virtual void SetProgress(int progress) = 0;
  50
  51   // Shows estimated time left message.
  52   virtual void ShowEstimatedTimeLeft(bool visible) = 0;
  53
  54   // Sets current estimation for time left in the downloading stage.
  55   virtual void SetEstimatedTimeLeft(const base::TimeDelta& time) = 0;
  56
  57   // Shows message under progress bar.
  58   virtual void ShowProgressMessage(bool visible) = 0;
  59
  60   // Sets message under progress bar.
  61   virtual void SetProgressMessage(ProgressMessage message) = 0;
  62
  63   // Shows screen curtains.
  64   virtual void ShowCurtain(bool visible) = 0;
  65 };
  66
  67 }  // namespace chromeos
  68
  69 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_UPDATE_SCREEN_ACTOR_H_