chrome/browser/ui/webui/chromeos/login/kiosk_app_menu_handler.h

   1 // Copyright 2013 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_CHROMEOS_LOGIN_KIOSK_APP_MENU_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_KIOSK_APP_MENU_HANDLER_H_
   7
   8 #include <string>
   9
  10 #include "base/compiler_specific.h"
  11 #include "base/memory/scoped_ptr.h"
  12 #include "base/memory/weak_ptr.h"
  13 #include "chrome/browser/chromeos/app_mode/kiosk_app_manager.h"
  14 #include "chrome/browser/chromeos/app_mode/kiosk_app_manager_observer.h"
  15 #include "chrome/browser/chromeos/login/screens/network_error.h"
  16 #include "chrome/browser/ui/webui/chromeos/login/network_state_informer.h"
  17 #include "content/public/browser/web_ui_message_handler.h"
  18
  19 namespace chromeos {
  20
  21 // KioskAppMenuHandler supplies kiosk apps data to apps menu on sign-in
  22 // screen when app mode is enabled and handles "launchKioskApp" request
  23 // from the apps menu.
  24 class KioskAppMenuHandler
  25     : public content::WebUIMessageHandler,
  26       public KioskAppManagerObserver,
  27       public NetworkStateInformer::NetworkStateInformerObserver {
  28  public:
  29   explicit KioskAppMenuHandler(
  30       const scoped_refptr<NetworkStateInformer>& network_state_informer);
  31   ~KioskAppMenuHandler() override;
  32
  33   void GetLocalizedStrings(base::DictionaryValue* localized_strings);
  34
  35   // content::WebUIMessageHandler overrides:
  36   void RegisterMessages() override;
  37
  38   // Returns true if new kiosk UI is enabled.
  39   static bool EnableNewKioskUI();
  40
  41  private:
  42   // Sends all kiosk apps to webui.
  43   void SendKioskApps();
  44
  45   // JS callbacks.
  46   void HandleInitializeKioskApps(const base::ListValue* args);
  47   void HandleKioskAppsLoaded(const base::ListValue* args);
  48   void HandleCheckKioskAppLaunchError(const base::ListValue* args);
  49
  50   // KioskAppManagerObserver overrides:
  51   void OnKioskAppsSettingsChanged() override;
  52   void OnKioskAppDataChanged(const std::string& app_id) override;
  53
  54   // NetworkStateInformer::NetworkStateInformerObserver overrides:
  55   void UpdateState(NetworkError::ErrorReason reason) override;
  56
  57   // True when WebUI is initialized. Otherwise don't allow calling JS functions.
  58   bool is_webui_initialized_;
  59
  60   scoped_refptr<NetworkStateInformer> network_state_informer_;
  61
  62   base::WeakPtrFactory<KioskAppMenuHandler> weak_ptr_factory_;
  63
  64   DISALLOW_COPY_AND_ASSIGN(KioskAppMenuHandler);
  65 };
  66
  67 }  // namespace chromeos
  68
  69 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_KIOSK_APP_MENU_HANDLER_H_