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.
5 #ifndef CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ENROLLMENT_SCREEN_HANDLER_H_
6 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ENROLLMENT_SCREEN_HANDLER_H_
11 #include "base/basictypes.h"
12 #include "base/callback_forward.h"
13 #include "base/memory/scoped_ptr.h"
14 #include "base/memory/scoped_vector.h"
15 #include "chrome/browser/browsing_data/browsing_data_remover.h"
16 #include "chrome/browser/chromeos/login/enrollment/enrollment_screen_actor.h"
17 #include "chrome/browser/chromeos/login/ui/webui_login_view.h"
18 #include "chrome/browser/extensions/signin/scoped_gaia_auth_extension.h"
19 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
20 #include "chrome/browser/ui/webui/chromeos/login/network_state_informer.h"
23 class PolicyOAuth2TokenFetcher;
28 class ErrorScreensHistogramHelper;
30 // WebUIMessageHandler implementation which handles events occurring on the
31 // page, such as the user pressing the signin button.
32 class EnrollmentScreenHandler
33 : public BaseScreenHandler,
34 public EnrollmentScreenActor,
35 public BrowsingDataRemover::Observer,
36 public NetworkStateInformer::NetworkStateInformerObserver,
37 public WebUILoginView::FrameObserver {
39 EnrollmentScreenHandler(
40 const scoped_refptr<NetworkStateInformer>& network_state_informer,
41 ErrorScreenActor* error_screen_actor);
42 virtual ~EnrollmentScreenHandler();
44 // Implements WebUIMessageHandler:
45 virtual void RegisterMessages() override;
47 // Implements EnrollmentScreenActor:
48 virtual void SetParameters(Controller* controller,
49 EnrollmentMode enrollment_mode,
50 const std::string& management_domain) override;
51 virtual void PrepareToShow() override;
52 virtual void Show() override;
53 virtual void Hide() override;
54 virtual void FetchOAuthToken() override;
55 virtual void ResetAuth(const base::Closure& callback) override;
56 virtual void ShowSigninScreen() override;
57 virtual void ShowEnrollmentSpinnerScreen() override;
58 virtual void ShowLoginSpinnerScreen() override;
59 virtual void ShowAuthError(const GoogleServiceAuthError& error) override;
60 virtual void ShowEnrollmentStatus(policy::EnrollmentStatus status) override;
61 virtual void ShowUIError(UIError error_code) override;
63 // Implements BaseScreenHandler:
64 virtual void Initialize() override;
65 virtual void DeclareLocalizedValues(LocalizedValuesBuilder* builder) override;
67 // Implements BrowsingDataRemover::Observer:
68 virtual void OnBrowsingDataRemoverDone() override;
70 // Implements NetworkStateInformer::NetworkStateInformerObserver
71 virtual void UpdateState(ErrorScreenActor::ErrorReason reason) override;
73 // Implements WebUILoginView::FrameObserver
74 virtual void OnFrameError(const std::string& frame_unique_name) override;
77 // Handlers for WebUI messages.
78 void HandleClose(const std::string& reason);
79 void HandleCompleteLogin(const std::string& user);
81 void HandleFrameLoadingCompleted(int status);
83 void SetupAndShowOfflineMessage(NetworkStateInformer::State state,
84 ErrorScreenActor::ErrorReason reason);
85 void HideOfflineMessage(NetworkStateInformer::State state,
86 ErrorScreenActor::ErrorReason reason);
88 net::Error frame_error() const { return frame_error_; }
89 // Shows a given enrollment step.
90 void ShowStep(const char* step);
92 // Display the given i18n resource as error message.
93 void ShowError(int message_id, bool retry);
95 // Display the given string as error message.
96 void ShowErrorMessage(const std::string& message, bool retry);
98 // Display the given i18n string as a progress message.
99 void ShowWorking(int message_id);
101 // Handles completion of the OAuth2 token fetch attempt.
102 void OnTokenFetched(const std::string& token,
103 const GoogleServiceAuthError& error);
108 // Returns current visible screen.
109 OobeUI::Screen GetCurrentScreen() const;
111 // Returns true if current visible screen is the enrollment sign-in page.
112 bool IsOnEnrollmentScreen() const;
114 // Returns true if current visible screen is the error screen over
115 // enrollment sign-in page.
116 bool IsEnrollmentScreenHiddenByError() const;
118 // Keeps the controller for this actor.
119 Controller* controller_;
123 // The enrollment mode.
124 EnrollmentMode enrollment_mode_;
126 // The management domain, if applicable.
127 std::string management_domain_;
129 // Whether an enrollment attempt has failed.
130 bool enrollment_failed_once_;
132 // This intentionally lives here and not in the controller, since it needs to
133 // execute requests in the context of the profile that displays the webui.
134 scoped_ptr<policy::PolicyOAuth2TokenFetcher> oauth_fetcher_;
136 // The browsing data remover instance currently active, if any.
137 BrowsingDataRemover* browsing_data_remover_;
139 // The callbacks to invoke after browsing data has been cleared.
140 std::vector<base::Closure> auth_reset_callbacks_;
142 // Latest enrollment frame error.
143 net::Error frame_error_;
145 // Network state informer used to keep signin screen up.
146 scoped_refptr<NetworkStateInformer> network_state_informer_;
148 ErrorScreenActor* error_screen_actor_;
150 scoped_ptr<ErrorScreensHistogramHelper> histogram_helper_;
152 // GAIA extension loader.
153 scoped_ptr<ScopedGaiaAuthExtension> auth_extension_;
155 base::WeakPtrFactory<EnrollmentScreenHandler> weak_ptr_factory_;
157 DISALLOW_COPY_AND_ASSIGN(EnrollmentScreenHandler);
160 } // namespace chromeos
162 #endif // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ENROLLMENT_SCREEN_HANDLER_H_