chrome/browser/ui/webui/ntp/android/context_menu_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_NTP_ANDROID_CONTEXT_MENU_HANDLER_H_
   6 #define CHROME_BROWSER_UI_WEBUI_NTP_ANDROID_CONTEXT_MENU_HANDLER_H_
   7
   8 #include "base/memory/weak_ptr.h"
   9 #include "content/public/browser/web_ui_message_handler.h"
  10 #include "ui/base/window_open_disposition.h"
  11
  12 namespace base {
  13 class ListValue;
  14 }
  15
  16 // The handler for JavaScript messages related to the context menus.
  17 // It's the job of the actual HTML page to intercept the contextmenu event,
  18 // disable it and show its own custom menu.
  19 class ContextMenuHandler : public content::WebUIMessageHandler {
  20  public:
  21   ContextMenuHandler();
  22   virtual ~ContextMenuHandler();
  23
  24   // WebUIMessageHandler override and implementation.
  25   virtual void RegisterMessages() OVERRIDE;
  26
  27   // Invoked (by on_item_selected_callback_) when an item has been selected.
  28   void OnItemSelected(int item_id);
  29
  30   // Callback for setting whether incognito mode is disabled.
  31   void GetIncognitoDisabled(const base::ListValue* args);
  32
  33   // Callback for the "showContextMenu" message.
  34   void HandleShowContextMenu(const base::ListValue* args);
  35
  36   // Below are the message that are so far only triggered by the context menu.
  37   // They should be moved to other files if they become used from other places.
  38
  39   // Callback for the "openInNewTab" message.
  40   void HandleOpenInNewTab(const base::ListValue* args);
  41
  42   // Callback for the "openInIncognitoTab" message.
  43   void HandleOpenInIncognitoTab(const base::ListValue* args);
  44
  45  private:
  46   // Opens the URL stored as the first value of |args| with the given
  47   // |disposition|.  The URL will always be opened as an AUTO_BOOKMARK.
  48   void OpenUrl(const base::ListValue* args, WindowOpenDisposition disposition);
  49
  50   // Used to get a WeakPtr to self on the UI thread.
  51   base::WeakPtrFactory<ContextMenuHandler> weak_ptr_factory_;
  52
  53   DISALLOW_COPY_AND_ASSIGN(ContextMenuHandler);
  54 };
  55
  56 #endif  // CHROME_BROWSER_UI_WEBUI_NTP_ANDROID_CONTEXT_MENU_HANDLER_H_