<?php
/**
 * $Id$
 *
 * The contents of this file are subject to the KnowledgeTree Public
 * License Version 1.1.2 ("License"); You may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.knowledgetree.com/KPL
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
 * See the License for the specific language governing rights and
 * limitations under the License.
 *
 * All copies of the Covered Code must include on each user interface screen:
 *    (i) the "Powered by KnowledgeTree" logo and
 *    (ii) the KnowledgeTree copyright notice
 * in the same form as they appear in the distribution.  See the License for
 * requirements.
 *
 * The Original Code is: KnowledgeTree Open Source
 *
 * The Initial Developer of the Original Code is The Jam Warehouse Software
 * (Pty) Ltd, trading as KnowledgeTree.
 * Portions created by The Jam Warehouse Software (Pty) Ltd are Copyright
 * (C) 2007 The Jam Warehouse Software (Pty) Ltd;
 * All Rights Reserved.
 * Contributor( s): ______________________________________
 *
 */

class KTTriggerRegistry {
    var $triggers = array();
    // {{{ getSingleton
    static function &getSingleton () {
		if (!KTUtil::arrayGet($GLOBALS['_KT_PLUGIN'], 'oKTTriggerRegistry')) {
			$GLOBALS['_KT_PLUGIN']['oKTTriggerRegistry'] = new KTTriggerRegistry;
		}
		return $GLOBALS['_KT_PLUGIN']['oKTTriggerRegistry'];
    }
    // }}}

    // {{{ registerTrigger
    function registerTrigger($action, $slot, $name, $nsname, $path = "") {
        if (!array_key_exists($action, $this->triggers)) {
            $this->triggers[$action] = array();
        }
        if (!array_key_exists($slot, $this->triggers[$action])) {
            $this->triggers[$action][$slot] = array();
        }
        $this->triggers[$action][$slot][$nsname] = array($name, $path, $nsname);
    }
    // }}}

    // {{{ getTriggers
    function getTriggers($action, $slot) {
        $ret = array();
        if (array_key_exists($action, $this->triggers)) {
            if (array_key_exists($slot, $this->triggers[$action])) {
                $ret = $this->triggers[$action][$slot];
            }
        }
        if (empty($ret)) {
            return array();
        }

        foreach($ret as $trigger)
        {
        	if (!class_exists($trigger[0]))
        	{
        		require_once($trigger[1]);
        		if (!class_exists($trigger[0]))
        		{
        			global $default;
        			$defailt->log->error(sprintf(_kt('Cannot locate trigger class \'%s\' for action \'%s\' slot \'%s\'.'), $trigger[0], $action, $slot));
        		}
        	}
        }

        return $ret;
    }
    // }}}
}

?>