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   ~HandlerOptionsHandler() override;
  34
  35   // OptionsPageUIHandler implementation.
  36   void GetLocalizedValues(base::DictionaryValue* localized_strings) override;
  37   void InitializeHandler() override;
  38   void InitializePage() override;
  39   void RegisterMessages() override;
  40
  41   // content::NotificationObserver implementation.
  42   void Observe(int type,
  43                const content::NotificationSource& source,
  44                const content::NotificationDetails& details) override;
  45
  46  private:
  47   // Called when the user toggles whether custom handlers are enabled.
  48   void SetHandlersEnabled(const base::ListValue* args);
  49
  50   // Called when the user sets a new default handler for a protocol.
  51   void SetDefault(const base::ListValue* args);
  52
  53   // Called when the user clears the default handler for a protocol.
  54   // |args| is the string name of the protocol to clear.
  55   void ClearDefault(const base::ListValue* args);
  56
  57   // Parses a ProtocolHandler out of the arguments passed back from the view.
  58   // |args| is a list of [protocol, url, title].
  59   ProtocolHandler ParseHandlerFromArgs(const base::ListValue* args) const;
  60
  61   // Returns a JSON object describing the set of protocol handlers for the
  62   // given protocol.
  63   void GetHandlersForProtocol(const std::string& protocol,
  64                               base::DictionaryValue* value);
  65
  66   // Returns a JSON list of the ignored protocol handlers.
  67   void GetIgnoredHandlers(base::ListValue* handlers);
  68
  69   // Called when the JS PasswordManager object is initialized.
  70   void UpdateHandlerList();
  71
  72   // Remove a handler.
  73   // |args| is a list of [protocol, url, title].
  74   void RemoveHandler(const base::ListValue* args);
  75
  76   // Remove an ignored handler.
  77   // |args| is a list of [protocol, url, title].
  78   void RemoveIgnoredHandler(const base::ListValue* args);
  79
  80   ProtocolHandlerRegistry* GetProtocolHandlerRegistry();
  81
  82   content::NotificationRegistrar notification_registrar_;
  83
  84   DISALLOW_COPY_AND_ASSIGN(HandlerOptionsHandler);
  85 };
  86
  87 }  // namespace options
  88
  89 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_HANDLER_OPTIONS_HANDLER_H_