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

   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.
   4
   5 #ifndef CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_NETWORK_SCREEN_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_NETWORK_SCREEN_HANDLER_H_
   7
   8 #include <string>
   9
  10 #include "base/compiler_specific.h"
  11 #include "chrome/browser/chromeos/login/screens/network_screen_actor.h"
  12 #include "chrome/browser/chromeos/settings/cros_settings.h"
  13 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
  14 #include "ui/gfx/point.h"
  15
  16 namespace chromeos {
  17
  18 class CoreOobeActor;
  19
  20 // WebUI implementation of NetworkScreenActor. It is used to interact with
  21 // the welcome screen (part of the page) of the OOBE.
  22 class NetworkScreenHandler : public NetworkScreenActor,
  23                              public BaseScreenHandler {
  24  public:
  25   explicit NetworkScreenHandler(CoreOobeActor* core_oobe_actor);
  26   virtual ~NetworkScreenHandler();
  27
  28   // NetworkScreenActor implementation:
  29   virtual void SetDelegate(NetworkScreenActor::Delegate* screen) OVERRIDE;
  30   virtual void PrepareToShow() OVERRIDE;
  31   virtual void Show() OVERRIDE;
  32   virtual void Hide() OVERRIDE;
  33   virtual void ShowError(const string16& message) OVERRIDE;
  34   virtual void ClearErrors() OVERRIDE;
  35   virtual void ShowConnectingStatus(bool connecting,
  36                                     const string16& network_id) OVERRIDE;
  37   virtual void EnableContinue(bool enabled) OVERRIDE;
  38
  39   // BaseScreenHandler implementation:
  40   virtual void DeclareLocalizedValues(LocalizedValuesBuilder* builder) OVERRIDE;
  41   virtual void GetAdditionalParameters(base::DictionaryValue* dict) OVERRIDE;
  42   virtual void Initialize() OVERRIDE;
  43
  44   // WebUIMessageHandler implementation:
  45   virtual void RegisterMessages() OVERRIDE;
  46
  47  private:
  48   // Handles moving off the screen.
  49   void HandleOnExit();
  50
  51   // Handles change of the language.
  52   void HandleOnLanguageChanged(const std::string& locale);
  53
  54   // Handles change of the input method.
  55   void HandleOnInputMethodChanged(const std::string& id);
  56
  57   // Handles change of the time zone
  58   void HandleOnTimezoneChanged(const std::string& timezone);
  59
  60   // Callback when the system timezone settings is changed.
  61   void OnSystemTimezoneChanged();
  62
  63   // Returns available languages. Caller gets the ownership. Note, it does
  64   // depend on the current locale.
  65   static base::ListValue* GetLanguageList();
  66
  67   // Returns available input methods. Caller gets the ownership. Note, it does
  68   // depend on the current locale.
  69   static base::ListValue* GetInputMethods();
  70
  71   // Returns available timezones. Caller gets the ownership.
  72   static base::ListValue* GetTimezoneList();
  73
  74   NetworkScreenActor::Delegate* screen_;
  75   CoreOobeActor* core_oobe_actor_;
  76
  77   bool is_continue_enabled_;
  78
  79   // Keeps whether screen should be shown right after initialization.
  80   bool show_on_init_;
  81
  82   // Position of the network control.
  83   gfx::Point network_control_pos_;
  84
  85   scoped_ptr<CrosSettings::ObserverSubscription> timezone_subscription_;
  86
  87   DISALLOW_COPY_AND_ASSIGN(NetworkScreenHandler);
  88 };
  89
  90 }  // namespace chromeos
  91
  92 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_NETWORK_SCREEN_HANDLER_H_