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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 EventListener interface is the primary method for
handling events. Users implement the EventListener interface
and register their listener on an EventTarget using the
AddEventListener method. The users should also remove their
EventListener from its EventTarget after they
have completed using the listener.

 When a Node is copied using the cloneNode
method the EventListeners attached to the source
Node are not attached to the copied Node. If
the user wishes the same EventListeners to be added to the
newly created copy the user must add them manually.

See also the Document Object Model (DOM) Level 2 Events Specification.

Since:1.5, DOM Level 2
/**
 *  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  EventListener interface was registered.

Params:
  • evt –  The Event contains contextual information
  about the event. It also contains the stopPropagation
  and preventDefault methods which are used in
  determining the event's flow and default action.
/**
     *  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);

}