chrome/browser/ui/webui/extensions/command_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_EXTENSIONS_COMMAND_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_EXTENSIONS_COMMAND_HANDLER_H_
   7
   8 #include "base/compiler_specific.h"
   9 #include "content/public/browser/notification_observer.h"
  10 #include "content/public/browser/notification_registrar.h"
  11 #include "content/public/browser/web_ui_message_handler.h"
  12
  13 namespace base {
  14 class DictionaryValue;
  15 class ListValue;
  16 }
  17
  18 namespace content {
  19 class WebUIDataSource;
  20 }
  21
  22 namespace extensions {
  23 class Command;
  24 class CommandService;
  25 }
  26
  27 class Extension;
  28 class Profile;
  29
  30 namespace extensions {
  31
  32 // The handler page for the Extension Commands UI overlay.
  33 class CommandHandler : public content::WebUIMessageHandler,
  34                        public content::NotificationObserver {
  35  public:
  36   explicit CommandHandler(Profile* profile);
  37   virtual ~CommandHandler();
  38
  39   // Fetches the localized values for the page and deposits them into |source|.
  40   void GetLocalizedValues(content::WebUIDataSource* source);
  41
  42   // WebUIMessageHandler implementation.
  43   virtual void RegisterMessages() OVERRIDE;
  44
  45   // NotificationObserver implementation.
  46   virtual void Observe(int type,
  47                        const content::NotificationSource& source,
  48                        const content::NotificationDetails& details) OVERRIDE;
  49
  50  private:
  51    // Update the list of extension commands in the config UI.
  52   void UpdateCommandDataOnPage();
  53
  54   // Handles requests from javascript to fetch the extensions data, including
  55   // the commands it contains.
  56   // Replies back through: ExtensionCommandsOverlay.returnExtensionsData.
  57   void HandleRequestExtensionsData(const base::ListValue* args);
  58
  59   // Handles requests from javascript to set a particular keyboard shortcut
  60   // for a given extension command.
  61   void HandleSetExtensionCommandShortcut(const base::ListValue* args);
  62
  63   // Handles requests from javascript to change the scope of a particular
  64   // keyboard shortcut for a given extension command.
  65   void HandleSetCommandScope(const base::ListValue* args);
  66
  67   // Handles requests from javascript to temporarily disable general Chrome
  68   // shortcut handling while the web page is capturing which shortcut to use.
  69   void HandleSetShortcutHandlingSuspended(const base::ListValue* args);
  70
  71   // Fetches all known commands, active and inactive and returns them through
  72   // |commands|.
  73   void GetAllCommands(base::DictionaryValue* commands);
  74
  75   content::NotificationRegistrar registrar_;
  76
  77   Profile* profile_;
  78
  79   DISALLOW_COPY_AND_ASSIGN(CommandHandler);
  80 };
  81
  82 }  // namespace extensions
  83
  84 #endif  // CHROME_BROWSER_UI_WEBUI_EXTENSIONS_COMMAND_HANDLER_H_