<?php // $Id$

    // vim: expandtab sw=4 ts=4 sts=4:
    
    # ***** BEGIN LICENSE BLOCK *****
    # This file is part of EventManager.
    # Copyright (c) 2005-2007 Frederic Minne <hide@address.com>.
    # All rights reserved.
    #
    # EventManager is free software; you can redistribute it and/or modify
    # it under the terms of the GNU General Public License as published by
    # the Free Software Foundation; either version 2 of the License, or
    # (at your option) any later version.
    #
    # EventManager 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 the
    # GNU General Public License for more details.
    #
    # You should have received a copy of the GNU General Public License
    # along with DotClear; if not, write to the Free Software
    # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    #
    # ***** END LICENSE BLOCK *****

    /**
    * generic event driven application
    * @access public
    * @abstract
    */
    class EventDriven
    {
        /**
         * constructor
         * @access public
         */
        function EventDriven()
        {
        }

        /**
         * add an event listener to the event driven application
         * @access public
         * @param string methodName callback method, must be a method of the
         *   current event-driven instance
         * @param string eventType event type
         * @return string eventlistener ID
         */
        function addListener( $eventType, $methodName )
        {
            $listener =& new EventListener( array( &$this, $methodName ) );
            return EventManager::addListener( $eventType, $listener );
        }

        /**
         * remove an event listener from the application
         * @access public
         * @param string eventType event type
         * @param string eventlistener ID
         * @return boolean
         */
        function removeListener( $eventType, $id )
        {
            return EventManager::removeListener( $eventType, $id );
        }
    }
?>