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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

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 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

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/*

 * This file is available under and governed by the GNU General Public

 * License version 2 only, as published by the Free Software Foundation.

 * However, the following notice accompanied the original version of this

 * file and, per its terms, should not be removed:

 *

 * Copyright (c) 2000 World Wide Web Consortium,

 * (Massachusetts Institute of Technology, Institut National de

 * Recherche en Informatique et en Automatique, Keio University). All

 * Rights Reserved. This program is distributed under the W3C's Software

 * Intellectual Property License. This program is distributed in the

 * hope that it will be useful, but WITHOUT ANY WARRANTY; without even

 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR

 * PURPOSE.

 * See W3C License http://www.w3.org/Consortium/Legal/ for more details.

 */

package org.w3c.dom.events;

/**

 *  The <code>EventListener</code> interface is the primary method for

 * handling events. Users implement the <code>EventListener</code> interface

 * and register their listener on an <code>EventTarget</code> using the

 * <code>AddEventListener</code> method. The users should also remove their

 * <code>EventListener</code> from its <code>EventTarget</code> after they

 * have completed using the listener.

 * <p> When a <code>Node</code> is copied using the <code>cloneNode</code>

 * method the <code>EventListener</code>s attached to the source

 * <code>Node</code> are not attached to the copied <code>Node</code>. If

 * the user wishes the same <code>EventListener</code>s to be added to the

 * newly created copy the user must add them manually.

 * <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Events-20001113'>Document Object Model (DOM) Level 2 Events Specification</a>.

 * @since 1.5, DOM Level 2

 */

public interface EventListener {

    /**

     *  This method is called whenever an event occurs of the type for which

     * the <code> EventListener</code> interface was registered.

     * @param evt  The <code>Event</code> contains contextual information

     *   about the event. It also contains the <code>stopPropagation</code>

     *   and <code>preventDefault</code> methods which are used in

     *   determining the event's flow and default action.

     */

    public void handleEvent(Event evt);

}