chrome/browser/chromeos/login/screens/base_screen_delegate.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_BASE_SCREEN_DELEGATE_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_BASE_SCREEN_DELEGATE_H_
   7
   8 #include <string>
   9
  10 namespace login {
  11 class ScreenContext;
  12 }
  13
  14 namespace chromeos {
  15
  16 class BaseScreen;
  17 class ErrorScreen;
  18
  19 // Interface that handles notifications received from any of login wizard
  20 // screens.
  21 class BaseScreenDelegate {
  22  public:
  23   // Each login screen or a view shown within login wizard view is itself a
  24   // state. Upon exit each view returns one of the results by calling OnExit()
  25   // method. Depending on the result and the current view or state login wizard
  26   // decides what is the next view to show. There must be an exit code for each
  27   // way to exit the screen for each screen. (Numeric ids are provided to
  28   // facilitate interpretation of log files only, they are subject to change
  29   // without notice.)
  30   enum ExitCodes {
  31     // "Continue" was pressed on network screen and network is online.
  32     NETWORK_CONNECTED = 0,
  33     HID_DETECTION_COMPLETED = 1,
  34     // Connection failed while trying to load a WebPageScreen.
  35     CONNECTION_FAILED = 2,
  36     UPDATE_INSTALLED = 3,
  37     UPDATE_NOUPDATE = 4,
  38     UPDATE_ERROR_CHECKING_FOR_UPDATE = 5,
  39     UPDATE_ERROR_UPDATING = 6,
  40     USER_IMAGE_SELECTED = 7,
  41     EULA_ACCEPTED = 8,
  42     EULA_BACK = 9,
  43     ENTERPRISE_AUTO_ENROLLMENT_CHECK_COMPLETED = 10,
  44     ENTERPRISE_ENROLLMENT_COMPLETED = 11,
  45     ENTERPRISE_ENROLLMENT_BACK = 12,
  46     RESET_CANCELED = 13,
  47     KIOSK_AUTOLAUNCH_CANCELED = 14,
  48     KIOSK_AUTOLAUNCH_CONFIRMED = 15,
  49     KIOSK_ENABLE_COMPLETED = 16,
  50     TERMS_OF_SERVICE_DECLINED = 17,
  51     TERMS_OF_SERVICE_ACCEPTED = 18,
  52     WRONG_HWID_WARNING_SKIPPED = 19,
  53     CONTROLLER_PAIRING_FINISHED = 20,
  54     HOST_PAIRING_FINISHED = 21,
  55     ENABLE_DEBUGGING_FINISHED = 22,
  56     ENABLE_DEBUGGING_CANCELED = 23,
  57     EXIT_CODES_COUNT  // not a real code, must be the last
  58   };
  59
  60   // Method called by a screen when user's done with it.
  61   virtual void OnExit(BaseScreen& screen,
  62                       ExitCodes exit_code,
  63                       const ::login::ScreenContext* context) = 0;
  64
  65   // Forces current screen showing.
  66   virtual void ShowCurrentScreen() = 0;
  67
  68   virtual ErrorScreen* GetErrorScreen() = 0;
  69   virtual void ShowErrorScreen() = 0;
  70   virtual void HideErrorScreen(BaseScreen* parent_screen) = 0;
  71
  72  protected:
  73   virtual ~BaseScreenDelegate() {}
  74 };
  75
  76 }  // namespace chromeos
  77
  78 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_BASE_SCREEN_DELEGATE_H_