/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * The contents of this file are subject to the Netscape 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/NPL/
 *
 * 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.
 *
 */

#include "nsISupports.idl"

#include "domstubs.idl"
%{C++
#include "nsString.h"
%}

/**
 * The nsIXPathNodeSelector can be used to query a DOM tree using XPath.
 */

[scriptable, uuid(f70c3f08-1dd1-11b2-b582-db02dfacb173)]
interface nsIXPathNodeSelector : nsISupports
{

  /**
   * Return a nodelist that is the result of an XPath query of the tree
   * fragment starting with the context node.
   *
   * @param aContextNode The context node for the query.
   * @param aPattern The pattern for the query.
   *
   * @returns The result of the XPath query.
   */
    nsIDOMNodeList selectNodes(in nsIDOMNode aContextNode,
	                             in DOMString aPattern);						  
};


%{ C++
extern nsresult
NS_NewXPathNodeSelector(nsIXPathNodeSelector** aNodeSelector);
%}