Home | History | Annotate | Download | only in options 
      1 // Copyright (c) 2011 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_CONTENT_SETTINGS_HANDLER_H_
      6 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_CONTENT_SETTINGS_HANDLER_H_
      7 #pragma once
      8 
      9 #include "chrome/browser/plugin_data_remover_helper.h"
     10 #include "chrome/browser/prefs/pref_change_registrar.h"
     11 #include "chrome/browser/ui/webui/options/options_ui.h"
     12 #include "chrome/common/content_settings_types.h"
     13 #include "content/common/notification_observer.h"
     14 #include "content/common/notification_registrar.h"
     15 
     16 class HostContentSettingsMap;
     17 
     18 class ContentSettingsHandler : public OptionsPageUIHandler {
     19  public:
     20   ContentSettingsHandler();
     21   virtual ~ContentSettingsHandler();
     22 
     23   // OptionsPageUIHandler implementation.
     24   virtual void GetLocalizedValues(DictionaryValue* localized_strings);
     25 
     26   virtual void Initialize();
     27 
     28   virtual void RegisterMessages();
     29 
     30   // NotificationObserver implementation.
     31   virtual void Observe(NotificationType type,
     32                        const NotificationSource& source,
     33                        const NotificationDetails& details);
     34 
     35   // Gets a string identifier for the group name, for use in HTML.
     36   static std::string ContentSettingsTypeToGroupName(ContentSettingsType type);
     37 
     38  private:
     39   // Functions that call into the page -----------------------------------------
     40 
     41   // Updates the page with the default settings (allow, ask, block, etc.)
     42   void UpdateSettingDefaultFromModel(ContentSettingsType type);
     43 
     44   // Clobbers and rebuilds the specific content setting type exceptions table.
     45   void UpdateExceptionsViewFromModel(ContentSettingsType type);
     46   // Clobbers and rebuilds the specific content setting type exceptions
     47   // OTR table.
     48   void UpdateOTRExceptionsViewFromModel(ContentSettingsType type);
     49   // Clobbers and rebuilds all the exceptions tables in the page (both normal
     50   // and OTR tables).
     51   void UpdateAllExceptionsViewsFromModel();
     52   // As above, but only OTR tables.
     53   void UpdateAllOTRExceptionsViewsFromModel();
     54   // Clobbers and rebuilds just the geolocation exception table.
     55   void UpdateGeolocationExceptionsView();
     56   // Clobbers and rebuilds just the desktop notification exception table.
     57   void UpdateNotificationExceptionsView();
     58   // Clobbers and rebuilds an exception table that's managed by the host content
     59   // settings map.
     60   void UpdateExceptionsViewFromHostContentSettingsMap(ContentSettingsType type);
     61   // As above, but acts on the OTR table for the content setting type.
     62   void UpdateExceptionsViewFromOTRHostContentSettingsMap(
     63       ContentSettingsType type);
     64 
     65   // Callbacks used by the page ------------------------------------------------
     66 
     67   // Sets the default value for a specific content type. |args| includes the
     68   // content type and a string describing the new default the user has
     69   // chosen.
     70   void SetContentFilter(const ListValue* args);
     71 
     72   // Removes the given row from the table. The first entry in |args| is the
     73   // content type, and the rest of the arguments depend on the content type
     74   // to be removed.
     75   void RemoveException(const ListValue* args);
     76 
     77   // Changes the value of an exception. Called after the user is done editing an
     78   // exception.
     79   void SetException(const ListValue* args);
     80 
     81   // Called to decide whether a given pattern is valid, or if it should be
     82   // rejected. Called while the user is editing an exception pattern.
     83   void CheckExceptionPatternValidity(const ListValue* args);
     84 
     85   // Sets the global 3rd party cookies pref.
     86   void SetAllowThirdPartyCookies(const ListValue* args);
     87 
     88   // Utility functions ---------------------------------------------------------
     89 
     90   // Gets the HostContentSettingsMap for the normal profile.
     91   HostContentSettingsMap* GetContentSettingsMap();
     92 
     93   // Gets the HostContentSettingsMap for the incognito profile, or NULL if there
     94   // is no active incognito session.
     95   HostContentSettingsMap* GetOTRContentSettingsMap();
     96 
     97   // Gets the default setting in string form.
     98   std::string GetSettingDefaultFromModel(ContentSettingsType type);
     99 
    100   // Returns true if the default setting for the given content settings type
    101   // |type| is managed.
    102   bool GetDefaultSettingManagedFromModel(ContentSettingsType type);
    103 
    104   // Member variables ---------------------------------------------------------
    105 
    106   NotificationRegistrar notification_registrar_;
    107   PrefChangeRegistrar pref_change_registrar_;
    108 
    109   DISALLOW_COPY_AND_ASSIGN(ContentSettingsHandler);
    110 };
    111 
    112 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_CONTENT_SETTINGS_HANDLER_H_
    113