1/*
2 * Copyright (c) 2000 World Wide Web Consortium,
3 * (Massachusetts Institute of Technology, Institut National de
4 * Recherche en Informatique et en Automatique, Keio University). All
5 * Rights Reserved. This program is distributed under the W3C's Software
6 * Intellectual Property License. This program is distributed in the
7 * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
8 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
9 * PURPOSE.
10 * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
11 */
12
13package org.w3c.dom.events;
14
15/**
16 *  The <code>EventListener</code> interface is the primary method for
17 * handling events. Users implement the <code>EventListener</code> interface
18 * and register their listener on an <code>EventTarget</code> using the
19 * <code>AddEventListener</code> method. The users should also remove their
20 * <code>EventListener</code> from its <code>EventTarget</code> after they
21 * have completed using the listener.
22 * <p> When a <code>Node</code> is copied using the <code>cloneNode</code>
23 * method the <code>EventListener</code>s attached to the source
24 * <code>Node</code> are not attached to the copied <code>Node</code>. If
25 * the user wishes the same <code>EventListener</code>s to be added to the
26 * newly created copy the user must add them manually.
27 * <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>.
28 * @since DOM Level 2
29 */
30public interface EventListener {
31    /**
32     *  This method is called whenever an event occurs of the type for which
33     * the <code> EventListener</code> interface was registered.
34     * @param evt  The <code>Event</code> contains contextual information
35     *   about the event. It also contains the <code>stopPropagation</code>
36     *   and <code>preventDefault</code> methods which are used in
37     *   determining the event's flow and default action.
38     */
39    public void handleEvent(Event evt);
40
41}
42