/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** 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.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2000
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   David Hyatt <hyatt@netscape.com> (original author)
 *   Johnny Stenback <jst@netscape.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of 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"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * ***** END LICENSE BLOCK ***** */

#include "domstubs.idl"

interface nsIDOMXULCommandDispatcher;
interface nsIObserver;

[scriptable, uuid(e64bb081-13ba-430e-ab70-73a9f1d3de58)]
interface nsIDOMXULDocument : nsISupports
{
           attribute nsIDOMNode                 popupNode;
           attribute nsIDOMNode                 tooltipNode;

  readonly attribute nsIDOMXULCommandDispatcher commandDispatcher;

  readonly attribute long                       width;
  readonly attribute long                       height;

  nsIDOMNodeList            getElementsByAttribute(in DOMString name,
                                                   in DOMString value);

  void                      addBroadcastListenerFor(in nsIDOMElement broadcaster,
                                                    in nsIDOMElement observer,
                                                    in DOMString attr);

  void                      removeBroadcastListenerFor(in nsIDOMElement broadcaster,
                                                       in nsIDOMElement observer,
                                                       in DOMString attr);

  void                      persist(in DOMString id, in DOMString attr);

  /**
   * Loads a XUL overlay and merges it with the current document, notifying an
   * observer when the merge is complete. 
   * @param   url
   *          The URL of the overlay to load and merge
   * @param   observer
   *          An object implementing nsIObserver that will be notified with a
   *          message of topic "xul-overlay-merged" when the merge is complete. 
   *          The subject parameter of |observe| will QI to a nsIURI - the URI 
   *          of the merged overlay. This parameter is optional and may be null.
   *
   * NOTICE:  In the 2.0 timeframe this API will change such that the 
   *          implementation will fire a DOMXULOverlayMerged event upon merge
   *          completion rather than notifying an observer. Do not rely on this
   *          API's behavior _not_ to change because it will!
   *          - Ben Goodger (8/23/2005)
   */
  void                      loadOverlay(in DOMString url, in nsIObserver aObserver);
};