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      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_CORE_OOBE_HANDLER_H_
      6 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_CORE_OOBE_HANDLER_H_
      7 
      8 #include <string>
      9 
     10 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
     11 #include "chrome/browser/chromeos/login/screens/core_oobe_actor.h"
     12 #include "chrome/browser/chromeos/login/version_info_updater.h"
     13 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
     14 #include "chrome/browser/ui/webui/chromeos/login/demo_mode_detector.h"
     15 
     16 namespace base {
     17 class ListValue;
     18 }
     19 
     20 namespace gfx {
     21 class Rect;
     22 }
     23 
     24 namespace chromeos {
     25 
     26 class HelpAppLauncher;
     27 class OobeUI;
     28 
     29 // The core handler for Javascript messages related to the "oobe" view.
     30 class CoreOobeHandler : public BaseScreenHandler,
     31                         public VersionInfoUpdater::Delegate,
     32                         public CoreOobeActor {
     33  public:
     34   class Delegate {
     35    public:
     36     // Called when current screen is changed.
     37     virtual void OnCurrentScreenChanged(const std::string& screen) = 0;
     38   };
     39 
     40   explicit CoreOobeHandler(OobeUI* oobe_ui);
     41   virtual ~CoreOobeHandler();
     42 
     43   void SetDelegate(Delegate* delegate);
     44 
     45   // BaseScreenHandler implementation:
     46   virtual void DeclareLocalizedValues(LocalizedValuesBuilder* builder) OVERRIDE;
     47   virtual void Initialize() OVERRIDE;
     48 
     49   // WebUIMessageHandler implementation.
     50   virtual void RegisterMessages() OVERRIDE;
     51 
     52   // VersionInfoUpdater::Delegate implementation:
     53   virtual void OnOSVersionLabelTextUpdated(
     54       const std::string& os_version_label_text) OVERRIDE;
     55   virtual void OnEnterpriseInfoUpdated(
     56       const std::string& message_text) OVERRIDE;
     57 
     58   // Show or hide OOBE UI.
     59   void ShowOobeUI(bool show);
     60 
     61   bool show_oobe_ui() const {
     62     return show_oobe_ui_;
     63   }
     64 
     65  private:
     66   // CoreOobeActor implementation:
     67   virtual void ShowSignInError(
     68       int login_attempts,
     69       const std::string& error_text,
     70       const std::string& help_link_text,
     71       HelpAppLauncher::HelpTopic help_topic_id) OVERRIDE;
     72   virtual void ShowTpmError() OVERRIDE;
     73   virtual void ShowSignInUI(const std::string& email) OVERRIDE;
     74   virtual void ResetSignInUI(bool force_online) OVERRIDE;
     75   virtual void ClearUserPodPassword() OVERRIDE;
     76   virtual void RefocusCurrentPod() OVERRIDE;
     77   virtual void ShowPasswordChangedScreen(bool show_password_error) OVERRIDE;
     78   virtual void SetUsageStats(bool checked) OVERRIDE;
     79   virtual void SetOemEulaUrl(const std::string& oem_eula_url) OVERRIDE;
     80   virtual void SetTpmPassword(const std::string& tmp_password) OVERRIDE;
     81   virtual void ClearErrors() OVERRIDE;
     82   virtual void ReloadContent(const base::DictionaryValue& dictionary) OVERRIDE;
     83   virtual void ShowControlBar(bool show) OVERRIDE;
     84   virtual void SetKeyboardState(bool shown, const gfx::Rect& bounds) OVERRIDE;
     85   virtual void SetClientAreaSize(int width, int height) OVERRIDE;
     86   virtual void ShowDeviceResetScreen() OVERRIDE;
     87   virtual void InitDemoModeDetection() OVERRIDE;
     88   virtual void StopDemoModeDetection() OVERRIDE;
     89 
     90   // Handlers for JS WebUI messages.
     91   void HandleEnableLargeCursor(bool enabled);
     92   void HandleEnableHighContrast(bool enabled);
     93   void HandleEnableVirtualKeyboard(bool enabled);
     94   void HandleEnableScreenMagnifier(bool enabled);
     95   void HandleEnableSpokenFeedback();
     96   void HandleInitialized();
     97   void HandleSkipUpdateEnrollAfterEula();
     98   void HandleUpdateCurrentScreen(const std::string& screen);
     99   void HandleSetDeviceRequisition(const std::string& requisition);
    100   void HandleScreenAssetsLoaded(const std::string& screen_async_load_id);
    101   void HandleSkipToLoginForTesting(const base::ListValue* args);
    102   void HandleLaunchHelpApp(double help_topic_id);
    103   void HandleToggleResetScreen();
    104   void HandleHeaderBarVisible();
    105 
    106   // Updates a11y menu state based on the current a11y features state(on/off).
    107   void UpdateA11yState();
    108 
    109   // Calls javascript to sync OOBE UI visibility with show_oobe_ui_.
    110   void UpdateOobeUIVisibility();
    111 
    112   // Updates label with specified id with specified text.
    113   void UpdateLabel(const std::string& id, const std::string& text);
    114 
    115   // Updates the device requisition string on the UI side.
    116   void UpdateDeviceRequisition();
    117 
    118   // Updates virtual keyboard state.
    119   void UpdateKeyboardState();
    120 
    121   // Updates client area size based on the primary screen size.
    122   void UpdateClientAreaSize();
    123 
    124   // Notification of a change in the accessibility settings.
    125   void OnAccessibilityStatusChanged(
    126       const AccessibilityStatusEventDetails& details);
    127 
    128   // Owner of this handler.
    129   OobeUI* oobe_ui_;
    130 
    131   // True if we should show OOBE instead of login.
    132   bool show_oobe_ui_;
    133 
    134   // Updates when version info is changed.
    135   VersionInfoUpdater version_info_updater_;
    136 
    137   // Help application used for help dialogs.
    138   scoped_refptr<HelpAppLauncher> help_app_;
    139 
    140   Delegate* delegate_;
    141 
    142   scoped_ptr<AccessibilityStatusSubscription> accessibility_subscription_;
    143 
    144   DemoModeDetector demo_mode_detector_;
    145 
    146   DISALLOW_COPY_AND_ASSIGN(CoreOobeHandler);
    147 };
    148 
    149 }  // namespace chromeos
    150 
    151 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_CORE_OOBE_HANDLER_H_
    152