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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_OPTIONS_CHROMEOS_CORE_CHROMEOS_OPTIONS_HANDLER_H_
      6 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_CHROMEOS_CORE_CHROMEOS_OPTIONS_HANDLER_H_
      7 
      8 #include <map>
      9 
     10 #include "base/compiler_specific.h"
     11 #include "base/memory/linked_ptr.h"
     12 #include "chrome/browser/chromeos/settings/cros_settings.h"
     13 #include "chrome/browser/chromeos/ui_proxy_config_service.h"
     14 #include "chrome/browser/ui/webui/options/core_options_handler.h"
     15 #include "content/public/browser/notification_observer.h"
     16 #include "content/public/browser/notification_registrar.h"
     17 
     18 namespace chromeos {
     19 namespace options {
     20 
     21 // CoreChromeOSOptionsHandler handles ChromeOS settings.
     22 class CoreChromeOSOptionsHandler : public ::options::CoreOptionsHandler,
     23                                    public content::NotificationObserver {
     24  public:
     25   CoreChromeOSOptionsHandler();
     26   virtual ~CoreChromeOSOptionsHandler();
     27 
     28   // ::CoreOptionsHandler overrides
     29   virtual void RegisterMessages() OVERRIDE;
     30   virtual base::Value* FetchPref(const std::string& pref_name) OVERRIDE;
     31   virtual void InitializeHandler() OVERRIDE;
     32   virtual void ObservePref(const std::string& pref_name) OVERRIDE;
     33   virtual void SetPref(const std::string& pref_name,
     34                        const base::Value* value,
     35                        const std::string& metric) OVERRIDE;
     36   virtual void StopObservingPref(const std::string& path) OVERRIDE;
     37   virtual base::Value* CreateValueForPref(
     38       const std::string& pref_name,
     39       const std::string& controlling_pref_name) OVERRIDE;
     40 
     41   // OptionsPageUIHandler implementation.
     42   virtual void GetLocalizedValues(
     43       base::DictionaryValue* localized_strings) OVERRIDE;
     44 
     45   // content::NotificationObserver implementation.
     46   virtual void Observe(int type,
     47                        const content::NotificationSource& source,
     48                        const content::NotificationDetails& details) OVERRIDE;
     49 
     50  private:
     51   virtual void OnPreferenceChanged(PrefService* service,
     52                                    const std::string& pref_name) OVERRIDE;
     53 
     54   // Called from Javascript to select the network to show proxy settings
     55   // for. Triggers pref notifications about the updated proxy settings.
     56   void SelectNetworkCallback(const base::ListValue* args);
     57 
     58   // Notifies registered JS callbacks on ChromeOS setting change.
     59   void NotifySettingsChanged(const std::string& setting_name);
     60   void NotifyProxyPrefsChanged();
     61 
     62   // Called on changes to the ownership status. Needed to update the interface
     63   // in case it has been shown before ownership has been fully established.
     64   void NotifyOwnershipChanged();
     65 
     66   typedef std::map<std::string, linked_ptr<CrosSettings::ObserverSubscription> >
     67       SubscriptionMap;
     68   SubscriptionMap pref_subscription_map_;
     69 
     70   content::NotificationRegistrar notification_registrar_;
     71 
     72   UIProxyConfigService proxy_config_service_;
     73 };
     74 
     75 }  // namespace options
     76 }  // namespace chromeos
     77 
     78 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_CHROMEOS_CORE_CHROMEOS_OPTIONS_HANDLER_H_
     79