<?php
/**
 * @version             $Id: navigator_class.php 2 2009-12-13 07:12:05Z guille $
 * @copyright           Copyright (C) 2007 - 2009 Joomla! Vargas. All rights reserved.
 * @license             GNU General Public License version 2 or later; see LICENSE.txt
 * @author              Guillermo Vargas (guille@vargas.co.cr)
 */

// No direct access
defined('_JEXEC') or die;

require_once(JPATH_COMPONENT_SITE.DS.'displayer.php');


class XmapNavigatorDisplayer extends XmapDisplayer {

	function __construct(&$config, &$sitemap) {
		$this->_list=array();
		$this->view='navigator';
	
		parent::__construct( $config, $sitemap);	
	}
	
	function printNode( &$node ) {
		if (!isset($node->selectable )) {
			$node->selectable=true;
		}
		// For extentions that doesn't set this property as this is new in Xmap 1.2.3
		if (!isset($node->expandible )) { 
			$node->expandible = true;
		}
		if ( empty($this->_list[$node->uid]) ) { // Avoid duplicated items
			$this->_list[$node->uid] = $node;
		}
		return false;
	}

	function &expandLink(&$parent)	{
		$items = &JSite::getMenu();
		$extensions = &$this->_extensions;
		$rows = null;
		if (strpos($parent->link,'-menu-') === 0 ) {
			$menutype = str_replace('-menu-','',$parent->link);
			// Get Menu Items
			$rows = $items->getItems('menutype', $menutype);
		} elseif ($parent->id) {
			$rows = $items->getItems('parent_id', $parent->id);
		}

		if ( $rows ) {
			foreach ($rows as $item) {
				if ($item->parent_id == $parent->id) {
					$node = new stdclass;
					$node->name = $item->title;
					$node->id   = $item->id;
					$node->uid  = 'itemid'.$item->id;
					$node->link = $item->link;
					$node->expandible = true;
					$node->selectable=true;
					// Prepare the node link
					XmapHelper::prepareMenuItem($node);
					if ( $item->home ) {
						$node->link = JURI::root();
					} elseif (substr($item->link,0,9) == 'index.php' && $item->type != 'url' ) {
						if ($item->type == 'menulink') {// For Joomla 1.5 SEF compatibility
							$params = new JParameter($item->params);
							$node->link 	= 'index.php?Itemid=' . $params->get('menu_item');
						} elseif ( strpos($item->link,'Itemid=') === FALSE ){
							$node->link 	= 'index.php?Itemid=' . $node->id;
						}
					} elseif ($item->type == 'separator') {
						$node->selectable=false;
					}
					$this->printNode($node);  // Add to the internal list
				}
			}

		}
		if ($parent->id) {
			$option = null;
			if ( preg_match('#^/?index.php.*option=(com_[^&]+)#',$parent->link,$matches) ) {
				$option = $matches[1];
			}
			$Itemid = JRequest::getInt('Itemid');
			if (!$option && $Itemid) {
				$item = $items->getItem($Itemid);
                		$link_query = parse_url( $item->link );
                		parse_str( html_entity_decode($link_query['query']), $link_vars);
                		$option = JArrayHelper::getValue($link_vars,'option','');
				if ( $option ) {
					$parent->link = $item->link;
				}
			}
			if ( $option ) {
				if ( !empty($extensions[$option]) ) {
					$parent->uid = $option;
					$className = 'xmap_'.$option;
					$result = call_user_func_array(array($className, 'getTree'),array(&$this,&$parent,$extensions[$option]->params));
				}
			}
		}
		return $this->_list;;
	}

	function &getParam($arr, $name, $def) {
		$var = JArrayHelper::getValue( $arr, $name, $def, '' );
		return $var;
	}
}
