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_observer.h"
  14 #include "content/public/browser/notification_registrar.h"
  15
  16 ////////////////////////////////////////////////////////////////////////////////
  17 // HandlerOptionsHandler
  18
  19 // Listen for changes to protocol handlers (i.e. registerProtocolHandler()).
  20 // This get triggered whenever a user allows a specific website or application
  21 // to handle clicks on a link with a specified protocol (i.e. mailto: -> Gmail).
  22
  23 namespace base {
  24 class DictionaryValue;
  25 }
  26
  27 namespace options {
  28
  29 class HandlerOptionsHandler : public OptionsPageUIHandler,
  30                               public content::NotificationObserver {
  31  public:
  32   HandlerOptionsHandler();
  33   virtual ~HandlerOptionsHandler();
  34
  35   // OptionsPageUIHandler implementation.
  36   virtual void GetLocalizedValues(
  37       base::DictionaryValue* localized_strings) OVERRIDE;
  38   virtual void InitializeHandler() OVERRIDE;
  39   virtual void InitializePage() OVERRIDE;
  40   virtual void RegisterMessages() OVERRIDE;
  41
  42   // content::NotificationObserver implementation.
  43   virtual void Observe(int type,
  44                        const content::NotificationSource& source,
  45                        const content::NotificationDetails& details) OVERRIDE;
  46
  47  private:
  48   // Called when the user toggles whether custom handlers are enabled.
  49   void SetHandlersEnabled(const base::ListValue* args);
  50
  51   // Called when the user sets a new default handler for a protocol.
  52   void SetDefault(const base::ListValue* args);
  53
  54   // Called when the user clears the default handler for a protocol.
  55   // |args| is the string name of the protocol to clear.
  56   void ClearDefault(const base::ListValue* args);
  57
  58   // Parses a ProtocolHandler out of the arguments passed back from the view.
  59   // |args| is a list of [protocol, url, title].
  60   ProtocolHandler ParseHandlerFromArgs(const base::ListValue* args) const;
  61
  62   // Returns a JSON object describing the set of protocol handlers for the
  63   // given protocol.
  64   void GetHandlersForProtocol(const std::string& protocol,
  65                               base::DictionaryValue* value);
  66
  67   // Returns a JSON list of the ignored protocol handlers.
  68   void GetIgnoredHandlers(base::ListValue* handlers);
  69
  70   // Called when the JS PasswordManager object is initialized.
  71   void UpdateHandlerList();
  72
  73   // Remove a handler.
  74   // |args| is a list of [protocol, url, title].
  75   void RemoveHandler(const base::ListValue* args);
  76
  77   // Remove an ignored handler.
  78   // |args| is a list of [protocol, url, title].
  79   void RemoveIgnoredHandler(const base::ListValue* args);
  80
  81   ProtocolHandlerRegistry* GetProtocolHandlerRegistry();
  82
  83   content::NotificationRegistrar notification_registrar_;
  84
  85   DISALLOW_COPY_AND_ASSIGN(HandlerOptionsHandler);
  86 };
  87
  88 }  // namespace options
  89
  90 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_HANDLER_OPTIONS_HANDLER_H_