reset_screen_actor.h revision c2e0dbddbe15c98d52c4786dac06cb8952a8ae6d
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_RESET_SCREEN_ACTOR_H_ 6#define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_RESET_SCREEN_ACTOR_H_ 7 8#include <string> 9 10namespace chromeos { 11 12// Interface between reset screen and its representation. 13// Note, do not forget to call OnActorDestroyed in the dtor. 14class ResetScreenActor { 15 public: 16 // Allows us to get info from reset 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(ResetScreenActor* actor) = 0; 27 }; 28 29 virtual ~ResetScreenActor() {} 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_RESET_SCREEN_ACTOR_H_ 40