chrome/browser/chromeos/login/screens/eula_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_EULA_SCREEN_ACTOR_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_EULA_SCREEN_ACTOR_H_
   7
   8 #include <string>
   9
  10 #include "ui/gfx/size.h"
  11 #include "url/gurl.h"
  12
  13 namespace chromeos {
  14
  15 // Interface between eula screen and its representation, either WebUI or
  16 // Views one. Note, do not forget to call OnActorDestroyed in the dtor.
  17 class EulaScreenActor {
  18  public:
  19   // Allows us to get info from eula screen that we need.
  20   class Delegate {
  21    public:
  22     virtual ~Delegate() {}
  23
  24     // Returns URL of the OEM EULA page that should be displayed using current
  25     // locale and manifest. Returns empty URL otherwise.
  26     virtual GURL GetOemEulaUrl() const = 0;
  27
  28     // Called when screen is exited. |accepted| indicates if EULA was
  29     // accepted or not.
  30     virtual void OnExit(bool accepted, bool usage_stats_enabled) = 0;
  31
  32     // Initiate TPM password fetch. Will call actor's OnPasswordFetched() when
  33     // done.
  34     virtual void InitiatePasswordFetch() = 0;
  35
  36     // Returns true if usage statistics reporting is enabled.
  37     virtual bool IsUsageStatsEnabled() const = 0;
  38
  39     // This method is called, when actor is being destroyed. Note, if Delegate
  40     // is destroyed earlier then it has to call SetDelegate(NULL).
  41     virtual void OnActorDestroyed(EulaScreenActor* actor) = 0;
  42   };
  43
  44   virtual ~EulaScreenActor() {}
  45
  46   virtual void PrepareToShow() = 0;
  47   virtual void Show() = 0;
  48   virtual void Hide() = 0;
  49   virtual void SetDelegate(Delegate* delegate) = 0;
  50   virtual void OnPasswordFetched(const std::string& tpm_password) = 0;
  51 };
  52
  53 }  // namespace chromeos
  54
  55 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_EULA_SCREEN_ACTOR_H_