src/chrome/browser/ui/webui/chromeos/login/error_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_ERROR_SCREEN_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ERROR_SCREEN_HANDLER_H_
   7
   8 #include "base/cancelable_callback.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/memory/ref_counted.h"
  11 #include "chrome/browser/chromeos/login/screens/error_screen_actor.h"
  12 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
  13 #include "chrome/browser/ui/webui/chromeos/login/network_state_informer.h"
  14
  15 namespace base {
  16 class DictionaryValue;
  17 }
  18
  19 namespace chromeos {
  20
  21 class CaptivePortalWindowProxy;
  22 class NativeWindowDelegate;
  23 class NetworkStateInformer;
  24
  25 // A class that handles the WebUI hooks in error screen.
  26 class ErrorScreenHandler : public BaseScreenHandler,
  27                            public ErrorScreenActor {
  28  public:
  29   ErrorScreenHandler(
  30       const scoped_refptr<NetworkStateInformer>& network_state_informer);
  31   virtual ~ErrorScreenHandler();
  32
  33   // ErrorScreenActor implementation:
  34   virtual void Show(OobeDisplay::Screen parent_screen,
  35                     base::DictionaryValue* params) OVERRIDE;
  36   virtual void Hide() OVERRIDE;
  37   virtual void FixCaptivePortal() OVERRIDE;
  38   virtual void ShowCaptivePortal() OVERRIDE;
  39   virtual void HideCaptivePortal() OVERRIDE;
  40   virtual void SetUIState(ErrorScreen::UIState ui_state) OVERRIDE;
  41   virtual void SetErrorState(ErrorScreen::ErrorState error_state,
  42                              const std::string& network) OVERRIDE;
  43   virtual void AllowGuestSignin(bool allowed) OVERRIDE;
  44   virtual void AllowOfflineLogin(bool allowed) OVERRIDE;
  45
  46  private:
  47   // Sends notification that error message is shown.
  48   void NetworkErrorShown();
  49
  50   bool GetScreenName(OobeUI::Screen screen, std::string* name) const;
  51
  52   // WebUI message handlers.
  53   void HandleShowCaptivePortal();
  54   void HandleHideCaptivePortal();
  55   void HandleLocalStateErrorPowerwashButtonClicked();
  56
  57   // WebUIMessageHandler implementation:
  58   virtual void RegisterMessages() OVERRIDE;
  59
  60   // BaseScreenHandler implementation:
  61   virtual void DeclareLocalizedValues(LocalizedValuesBuilder* builder) OVERRIDE;
  62   virtual void Initialize() OVERRIDE;
  63
  64   // Proxy which manages showing of the window for captive portal entering.
  65   scoped_ptr<CaptivePortalWindowProxy> captive_portal_window_proxy_;
  66
  67   // Network state informer used to keep error screen up.
  68   scoped_refptr<NetworkStateInformer> network_state_informer_;
  69
  70   // NativeWindowDelegate used to get reference to NativeWindow.
  71   NativeWindowDelegate* native_window_delegate_;
  72
  73   // Keeps whether screen should be shown right after initialization.
  74   bool show_on_init_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(ErrorScreenHandler);
  77 };
  78
  79 }  // namespace chromeos
  80
  81 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_ERROR_SCREEN_HANDLER_H_