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 13 package 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 */ 30 public 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
