chrome/browser/ui/webui/options/handler_options_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_OPTIONS_HANDLER_OPTIONS_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_HANDLER_OPTIONS_HANDLER_H_
   7
   8 #include <string>
   9
  10 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
  11 #include "chrome/browser/ui/webui/options/options_ui.h"
  12 #include "chrome/common/custom_handlers/protocol_handler.h"
  13 #include "content/public/browser/notification_registrar.h"
  14
  15 ////////////////////////////////////////////////////////////////////////////////
  16 // HandlerOptionsHandler
  17
  18 // Listen for changes to protocol handlers (i.e. registerProtocolHandler()).
  19 // This get triggered whenever a user allows a specific website or application
  20 // to handle clicks on a link with a specified protocol (i.e. mailto: -> Gmail).
  21
  22 namespace base {
  23 class DictionaryValue;
  24 }
  25
  26 namespace options {
  27
  28 class HandlerOptionsHandler : public OptionsPageUIHandler {
  29  public:
  30   HandlerOptionsHandler();
  31   virtual ~HandlerOptionsHandler();
  32
  33   // OptionsPageUIHandler implementation.
  34   virtual void GetLocalizedValues(
  35       base::DictionaryValue* localized_strings) OVERRIDE;
  36   virtual void InitializeHandler() OVERRIDE;
  37   virtual void InitializePage() OVERRIDE;
  38   virtual void RegisterMessages() OVERRIDE;
  39
  40   // content::NotificationObserver implementation.
  41   virtual void Observe(int type,
  42                        const content::NotificationSource& source,
  43                        const content::NotificationDetails& details) OVERRIDE;
  44
  45  private:
  46   // Called when the user toggles whether custom handlers are enabled.
  47   void SetHandlersEnabled(const base::ListValue* args);
  48
  49   // Called when the user sets a new default handler for a protocol.
  50   void SetDefault(const base::ListValue* args);
  51
  52   // Called when the user clears the default handler for a protocol.
  53   // |args| is the string name of the protocol to clear.
  54   void ClearDefault(const base::ListValue* args);
  55
  56   // Parses a ProtocolHandler out of the arguments passed back from the view.
  57   // |args| is a list of [protocol, url, title].
  58   ProtocolHandler ParseHandlerFromArgs(const base::ListValue* args) const;
  59
  60   // Returns a JSON object describing the set of protocol handlers for the
  61   // given protocol.
  62   void GetHandlersForProtocol(const std::string& protocol,
  63                               base::DictionaryValue* value);
  64
  65   // Returns a JSON list of the ignored protocol handlers.
  66   void GetIgnoredHandlers(base::ListValue* handlers);
  67
  68   // Called when the JS PasswordManager object is initialized.
  69   void UpdateHandlerList();
  70
  71   // Remove a handler.
  72   // |args| is a list of [protocol, url, title].
  73   void RemoveHandler(const base::ListValue* args);
  74
  75   // Remove an ignored handler.
  76   // |args| is a list of [protocol, url, title].
  77   void RemoveIgnoredHandler(const base::ListValue* args);
  78
  79   ProtocolHandlerRegistry* GetProtocolHandlerRegistry();
  80
  81   content::NotificationRegistrar notification_registrar_;
  82
  83   DISALLOW_COPY_AND_ASSIGN(HandlerOptionsHandler);
  84 };
  85
  86 }  // namespace options
  87
  88 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_HANDLER_OPTIONS_HANDLER_H_