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nsIDragDropHandler.idl

/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Communicator.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications.
 * Portions created by the Initial Developer are Copyright (C) 2002
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *  Mike Pinkerton <pinkerton@netscape.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"

interface nsIDOMEventTarget;
interface nsIWebNavigation;


/**
 * @status UNDER_REVIEW
 */

/**
 * Interface for communicating with the built-in drag and drop
 * implementation in the content area. Use this to register where
 * the listeners should attach (something that implements
 * |nsPIDOMEventTarget| which is what we end up using under the hood).
 */

[scriptable,uuid(4f418f58-f834-4736-a755-e0395bedca9d)]
00056 interface nsIDragDropHandler : nsISupports
{
  /**
   * Attach drag handlers to receiver specified by |attachPoint| and
   * specify callbacks to allow overriding of the built-in behaviors.
   *
   * @param attachPoint hookup listeners to this location
   * @param navigator loads dropped urls via this interface. If NULL, 
   *                   the client must handle the drop itself, either
   *                   through the method provided via |overrideDrop| or
   *                   by letting the event bubble up through the DOM.
   */
  void hookupTo(in nsIDOMEventTarget attachPoint, in nsIWebNavigation navigator);
  
  /**
   * Unregister all handlers related to drag&drop
   */
  void detach();
};

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