chrome/browser/chromeos/login/screens/wrong_hwid_screen_actor.h

   1 // Copyright (c) 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_CHROMEOS_LOGIN_SCREENS_WRONG_HWID_SCREEN_ACTOR_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_WRONG_HWID_SCREEN_ACTOR_H_
   7
   8 #include <string>
   9
  10 namespace chromeos {
  11
  12 // Interface between wrong HWID screen and its representation.
  13 // Note, do not forget to call OnActorDestroyed in the dtor.
  14 class WrongHWIDScreenActor {
  15  public:
  16   // Allows us to get info from wrong HWID screen that we need.
  17   class Delegate {
  18    public:
  19     virtual ~Delegate() {}
  20
  21     // Called when screen is exited.
  22     virtual void OnExit() = 0;
  23
  24     // This method is called, when actor is being destroyed. Note, if Delegate
  25     // is destroyed earlier then it has to call SetDelegate(NULL).
  26     virtual void OnActorDestroyed(WrongHWIDScreenActor* actor) = 0;
  27   };
  28
  29   virtual ~WrongHWIDScreenActor() {}
  30
  31   virtual void PrepareToShow() = 0;
  32   virtual void Show() = 0;
  33   virtual void Hide() = 0;
  34   virtual void SetDelegate(Delegate* delegate) = 0;
  35 };
  36
  37 }  // namespace chromeos
  38
  39 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_WRONG_HWID_SCREEN_ACTOR_H_
  40