src/chrome/browser/chromeos/login/enrollment/auto_enrollment_check_screen.h

   1 // Copyright 2014 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_ENROLLMENT_AUTO_ENROLLMENT_CHECK_SCREEN_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_ENROLLMENT_AUTO_ENROLLMENT_CHECK_SCREEN_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "base/macros.h"
  10 #include "base/memory/scoped_ptr.h"
  11 #include "chrome/browser/chromeos/login/enrollment/auto_enrollment_check_screen_actor.h"
  12 #include "chrome/browser/chromeos/login/enrollment/auto_enrollment_controller.h"
  13 #include "chrome/browser/chromeos/login/screens/error_screen.h"
  14 #include "chromeos/network/portal_detector/network_portal_detector.h"
  15
  16 namespace chromeos {
  17
  18 class ScreenManager;
  19 class ScreenObserver;
  20
  21 // Handles the control flow after OOBE auto-update completes to wait for the
  22 // enterprise auto-enrollment check that happens as part of OOBE. This includes
  23 // keeping track of current auto-enrollment state and displaying and updating
  24 // the error screen upon failures. Similar to a screen controller, but it
  25 // doesn't actually drive a dedicated screen.
  26 class AutoEnrollmentCheckScreen
  27     : public AutoEnrollmentCheckScreenActor::Delegate,
  28       public WizardScreen,
  29       public NetworkPortalDetector::Observer {
  30  public:
  31   AutoEnrollmentCheckScreen(
  32       ScreenObserver* observer,
  33       AutoEnrollmentCheckScreenActor* actor);
  34   virtual ~AutoEnrollmentCheckScreen();
  35
  36   static AutoEnrollmentCheckScreen* Get(ScreenManager* manager);
  37
  38   // Hands over OOBE control to this AutoEnrollmentCheckStep. It'll return the
  39   // flow back to the caller via the |screen_observer_|'s OnExit function.
  40   void Start();
  41
  42   void set_auto_enrollment_controller(
  43       AutoEnrollmentController* auto_enrollment_controller) {
  44     auto_enrollment_controller_ = auto_enrollment_controller;
  45   }
  46
  47   // WizardScreen implementation:
  48   virtual void PrepareToShow() OVERRIDE;
  49   virtual void Show() OVERRIDE;
  50   virtual void Hide() OVERRIDE;
  51   virtual std::string GetName() const OVERRIDE;
  52
  53   // AutoEnrollmentCheckScreenActor::Delegate implementation:
  54   virtual void OnExit() OVERRIDE;
  55   virtual void OnActorDestroyed(AutoEnrollmentCheckScreenActor* actor) OVERRIDE;
  56
  57   // NetworkPortalDetector::Observer implementation:
  58   virtual void OnPortalDetectionCompleted(
  59       const NetworkState* network,
  60       const NetworkPortalDetector::CaptivePortalState& state) OVERRIDE;
  61
  62  private:
  63   // Handles update notifications regarding the auto-enrollment check.
  64   void OnAutoEnrollmentCheckProgressed(policy::AutoEnrollmentState state);
  65
  66   // Handles a state update, updating the UI and saving the state.
  67   void UpdateState(
  68       NetworkPortalDetector::CaptivePortalStatus new_captive_portal_status,
  69       policy::AutoEnrollmentState new_auto_enrollment_state);
  70
  71   // Configures the UI to reflect |new_captive_portal_status|. Returns true if
  72   // and only if a UI change has been made.
  73   bool UpdateCaptivePortalStatus(
  74       NetworkPortalDetector::CaptivePortalStatus new_captive_portal_status);
  75
  76   // Configures the UI to reflect |auto_enrollment_state|. Returns true if and
  77   // only if a UI change has been made.
  78   bool UpdateAutoEnrollmentState(
  79       policy::AutoEnrollmentState auto_enrollment_state);
  80
  81   // Configures the error screen.
  82   void ShowErrorScreen(ErrorScreen::ErrorState error_state);
  83
  84   // Signals completion. No further code should run after a call to this
  85   // function as the owner might destroy |this| in response.
  86   void SignalCompletion();
  87
  88   // Checks if the enrollment status check is needed. It can be disabled either
  89   // by command line flags, build configuration or might have finished already.
  90   bool IsStartNeeded();
  91
  92   AutoEnrollmentCheckScreenActor* actor_;
  93   AutoEnrollmentController* auto_enrollment_controller_;
  94
  95   scoped_ptr<AutoEnrollmentController::ProgressCallbackList::Subscription>
  96       auto_enrollment_progress_subscription_;
  97
  98   NetworkPortalDetector::CaptivePortalStatus captive_portal_status_;
  99   policy::AutoEnrollmentState auto_enrollment_state_;
 100
 101   DISALLOW_COPY_AND_ASSIGN(AutoEnrollmentCheckScreen);
 102 };
 103
 104 }  // namespace chromeos
 105
 106 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_ENROLLMENT_AUTO_ENROLLMENT_CHECK_SCREEN_H_