<?php
/**
 * $Id$
 *
 * KnowledgeTree Community Edition
 * Document Management Made Simple
 * Copyright (C) 2008, 2009 KnowledgeTree Inc.
 * 
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License version 3 as published by the
 * Free Software Foundation.
 * 
 * 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 the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * You can contact KnowledgeTree Inc., PO Box 7775 #87847, San Francisco, 
 * California 94120-7775, or email info@knowledgetree.com.
 * 
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU General Public License version 3.
 * 
 * In accordance with Section 7(b) of the GNU General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * KnowledgeTree" logo and retain the original copyright notice. If the display of the 
 * logo is not reasonably feasible for technical reasons, the Appropriate Legal Notices
 * must display the words "Powered by KnowledgeTree" and retain the original 
 * copyright notice.
 * Contributor( s): ______________________________________
 *
 */

class KTPageRegistry {
    var $aResources = array();

    static function &getSingleton () {
		if (!KTUtil::arrayGet($GLOBALS['_KT_PLUGIN'], 'oKTPageRegistry')) {
			$GLOBALS['_KT_PLUGIN']['oKTPageRegistry'] = new KTPageRegistry;
		}
		return $GLOBALS['_KT_PLUGIN']['oKTPageRegistry'];
    }

    function registerPage($sPath, $sClassName, $sFilename = null) {
        $this->aResources[$sPath] = array($sPath, $sClassName, $sFilename);
    }

    function getPage($sPath) {
        $aInfo = KTUtil::arrayGet($this->aResources, $sPath);
        if (empty($aInfo)) {
            return null;
        }
        $sClassName = $aInfo[1];
        $sFilename = $aInfo[2];
        if ($sFilename) {
            require_once($sFilename);
        }
        return new $sClassName;
    }
}