supervised_user_import_handler.h revision 5f1c94371a64b3196d4be9466099bb892df9b88e 
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_UI_WEBUI_OPTIONS_SUPERVISED_USER_IMPORT_HANDLER_H_
6#define CHROME_BROWSER_UI_WEBUI_OPTIONS_SUPERVISED_USER_IMPORT_HANDLER_H_
7
8#include "base/callback_list.h"
9#include "base/memory/weak_ptr.h"
10#include "base/scoped_observer.h"
11#include "chrome/browser/supervised_user/supervised_user_sync_service_observer.h"
12#include "chrome/browser/ui/webui/options/options_ui.h"
13#include "components/signin/core/browser/signin_error_controller.h"
14
15namespace base {
16class DictionaryValue;
17class ListValue;
18}
19
20namespace options {
21
22// Handler for the 'import existing supervised user' dialog.
23class SupervisedUserImportHandler : public OptionsPageUIHandler,
24                                    public SupervisedUserSyncServiceObserver,
25                                    public SigninErrorController::Observer {
26 public:
27  typedef base::CallbackList<void(const std::string&, const std::string&)>
28      CallbackList;
29
30  SupervisedUserImportHandler();
31  virtual ~SupervisedUserImportHandler();
32
33  // OptionsPageUIHandler implementation.
34  virtual void GetLocalizedValues(
35      base::DictionaryValue* localized_strings) OVERRIDE;
36  virtual void InitializeHandler() OVERRIDE;
37
38  // WebUIMessageHandler implementation.
39  virtual void RegisterMessages() OVERRIDE;
40
41  // SupervisedUserSyncServiceObserver implementation.
42  virtual void OnSupervisedUserAcknowledged(
43      const std::string& supervised_user_id) OVERRIDE {}
44  virtual void OnSupervisedUsersSyncingStopped() OVERRIDE {}
45  virtual void OnSupervisedUsersChanged() OVERRIDE;
46
47  // SigninErrorController::Observer implementation.
48  virtual void OnErrorChanged() OVERRIDE;
49
50 private:
51  // Clears the cached list of supervised users and fetches the new list of
52  // supervised users.
53  void FetchSupervisedUsers();
54
55  // Callback for the "requestSupervisedUserImportUpdate" message.
56  // Checks the sign-in status of the custodian and accordingly
57  // sends an update to the WebUI. The update can be to show/hide
58  // an error bubble and update/clear the supervised user list.
59  void RequestSupervisedUserImportUpdate(const base::ListValue* args);
60
61  // Sends an array of supervised users to WebUI. Each entry is of the form:
62  //   supervisedProfile = {
63  //     id: "Supervised User ID",
64  //     name: "Supervised User Name",
65  //     iconURL: "chrome://path/to/icon/image",
66  //     onCurrentDevice: true or false,
67  //     needAvatar: true or false
68  //   }
69  // The array holds all existing supervised users attached to the
70  // custodian's profile which initiated the request.
71  void SendExistingSupervisedUsers(const base::DictionaryValue* dict);
72
73  // Sends messages to the JS side to clear supervised users and show an error
74  // bubble.
75  void ClearSupervisedUsersAndShowError();
76
77  bool IsAccountConnected() const;
78  bool HasAuthError() const;
79
80  // Called when a supervised user shared setting is changed. If the avatar was
81  // changed, FetchSupervisedUsers() is called.
82  void OnSharedSettingChanged(const std::string& supervised_user_id,
83                              const std::string& key);
84
85  scoped_ptr<CallbackList::Subscription> subscription_;
86
87  ScopedObserver<SigninErrorController, SupervisedUserImportHandler> observer_;
88
89  base::WeakPtrFactory<SupervisedUserImportHandler> weak_ptr_factory_;
90
91  DISALLOW_COPY_AND_ASSIGN(SupervisedUserImportHandler);
92};
93
94}  // namespace options
95
96#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_SUPERVISED_USER_IMPORT_HANDLER_H_
97