1 /* 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * 4 * This code is free software; you can redistribute it and/or modify it 5 * under the terms of the GNU General Public License version 2 only, as 6 * published by the Free Software Foundation. Oracle designates this 7 * particular file as subject to the "Classpath" exception as provided 8 * by Oracle in the LICENSE file that accompanied this code. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 */ 24 25 /* 26 * This file is available under and governed by the GNU General Public 27 * License version 2 only, as published by the Free Software Foundation. 28 * However, the following notice accompanied the original version of this 29 * file and, per its terms, should not be removed: 30 * 31 * Copyright (c) 2000 World Wide Web Consortium, 32 * (Massachusetts Institute of Technology, Institut National de 33 * Recherche en Informatique et en Automatique, Keio University). All 34 * Rights Reserved. This program is distributed under the W3C's Software 35 * Intellectual Property License. This program is distributed in the 36 * hope that it will be useful, but WITHOUT ANY WARRANTY; without even 37 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR 38 * PURPOSE. 39 * See W3C License http://www.w3.org/Consortium/Legal/ for more details. 40 */ 41 42 package org.w3c.dom.events; 43 44 /** 45 * The <code>EventListener</code> interface is the primary method for 46 * handling events. Users implement the <code>EventListener</code> interface 47 * and register their listener on an <code>EventTarget</code> using the 48 * <code>AddEventListener</code> method. The users should also remove their 49 * <code>EventListener</code> from its <code>EventTarget</code> after they 50 * have completed using the listener. 51 * <p> When a <code>Node</code> is copied using the <code>cloneNode</code> 52 * method the <code>EventListener</code>s attached to the source 53 * <code>Node</code> are not attached to the copied <code>Node</code>. If 54 * the user wishes the same <code>EventListener</code>s to be added to the 55 * newly created copy the user must add them manually. 56 * <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>. 57 * @since DOM Level 2 58 */ 59 public interface EventListener { 60 /** 61 * This method is called whenever an event occurs of the type for which 62 * the <code> EventListener</code> interface was registered. 63 * @param evt The <code>Event</code> contains contextual information 64 * about the event. It also contains the <code>stopPropagation</code> 65 * and <code>preventDefault</code> methods which are used in 66 * determining the event's flow and default action. 67 */ 68 public void handleEvent(Event evt); 69 70 }