chrome/browser/ui/webui/options/supervised_user_import_handler.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_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
  15 namespace base {
  16 class DictionaryValue;
  17 class ListValue;
  18 }
  19
  20 namespace options {
  21
  22 // Handler for the 'import existing supervised user' dialog.
  23 class 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_