<?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): ______________________________________
 *
 */

// FIXME should we refactor this into a separate file?  Do we gain anything?

class KTAdminNavigationRegistry {
    var $aResources = array();
    var $aCategorisation = array();
    var $aCategories = array();


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

    // name is the suburl below admin
    // namespace, class, category, title, description
    // if category is specified, it looks for an item with THAT NAME for its details.
    function registerLocation($sName, $sClass, $sCategory, $sTitle, $sDescription, $sDispatcherFilePath = null, $sURL = null) {
        $sFullname = $sCategory . '/' . $sName;
        $aInfo = array(
            "name" => $sName,
            "class" => $sClass,
            "title" => $sTitle,
            "description"=> $sDescription,
            "filepath" => $sDispatcherFilePath,
            "url" => $sURL,
            "fullname" => $sFullname);
        $this->aResources[$sFullname] = $aInfo;
        // is this a toplevel item?
        if ($sCategory != null) {
            if (!array_key_exists($sCategory, $this->aCategories)) {
                $this->registerCategory($sCategory, $sCategory, '');
            }
            $this->aCategorisation[$sCategory][] = $aInfo;
        }
    }

    function isRegistered($sName) {
        if (KTUtil::arrayGet($this->aResources, $sName)) {
            return true;
        }
        return false;
    }

    function registerCategory($sName, $sTitle, $sDescription) {
        $this->aCategories[$sName] = array("title" => $sTitle, "description" => $sDescription, "name" => $sName);
    }
    function getCategories() { return $this->aCategories; }
    function getCategory($sCategory) { return $this->aCategories[$sCategory]; }
    function getItemsForCategory($sCategory) { return $this->aCategorisation[$sCategory]; }

    function getDispatcher($sName) {
        // FIXME this probably needs to use require_once mojo.
        $aInfo = $this->aResources[$sName];
        if ($aInfo["filepath"] !== null) { require_once($aInfo["filepath"]); }
        if (!empty($aInfo['url'])) {
           return new RedirectingDispatcher($aInfo["url"]);
        }
        return new $aInfo["class"];
    }
}

class RedirectingDispatcher {
    var $url = '';

    function RedirectingDispatcher($sURL) {
        $this->url = $sURL;
    }

    function dispatch() {
        redirect($this->url);
    }
}

?>