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<?php
/**
* @version $Id: helper.php 12694 2009-09-11 21:03:02Z ian $
* @package Joomla
* @copyright Copyright (C) 2005 - 2008 Open Source Matters. All rights reserved.
* @license GNU/GPL, see LICENSE.php
* Joomla! is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/
// no direct access
defined('_JEXEC') or die('Restricted access');
jimport('joomla.base.tree');
jimport('joomla.utilities.simplexml');
/**
* mod_mainmenu Helper class
*
* @static
* @package Joomla
* @subpackage Menus
* @since 1.5
*/
class modMainMenuHelper
{
function buildXML($params)
{
$menu = new JMenuTree($params);
$items = &JSite::getMenu();
// Get Menu Items
$rows = $items->getItems('menutype', $params->get('menutype'));
$maxdepth = $params->get('maxdepth',10);
// Build Menu Tree root down (orphan proof - child might have lower id than parent)
$user =& JFactory::getUser();
$ids = array();
$ids[0] = true;
$last = null;
$unresolved = array();
// pop the first item until the array is empty if there is any item
if ( is_array($rows)) {
while (count($rows) && !is_null($row = array_shift($rows)))
{
if (array_key_exists($row->parent, $ids)) {
$row->ionly = $params->get('menu_images_link');
$menu->addNode($params, $row);
// record loaded parents
$ids[$row->id] = true;
} else {
// no parent yet so push item to back of list
// SAM: But if the key isn't in the list and we dont _add_ this is infinite, so check the unresolved queue
if(!array_key_exists($row->id, $unresolved) || $unresolved[$row->id] < $maxdepth) {
array_push($rows, $row);
// so let us do max $maxdepth passes
// TODO: Put a time check in this loop in case we get too close to the PHP timeout
if(!isset($unresolved[$row->id])) $unresolved[$row->id] = 1;
else $unresolved[$row->id]++;
}
}
}
}
return $menu->toXML();
}
function &getXML($type, &$params, $decorator)
{
static $xmls;
if (!isset($xmls[$type])) {
$cache =& JFactory::getCache('mod_mainmenu');
$string = $cache->call(array('modMainMenuHelper', 'buildXML'), $params);
$xmls[$type] = $string;
}
// Get document
$xml = JFactory::getXMLParser('Simple');
$xml->loadString($xmls[$type]);
$doc = &$xml->document;
$menu = &JSite::getMenu();
$active = $menu->getActive();
$start = $params->get('startLevel');
$end = $params->get('endLevel');
$sChild = $params->get('showAllChildren');
$path = array();
// Get subtree
if ($start)
{
$found = false;
$root = true;
if(!isset($active)){
$doc = false;
}
else{
$path = $active->tree;
for ($i=0,$n=count($path);$i<$n;$i++)
{
foreach ($doc->children() as $child)
{
if ($child->attributes('id') == $path[$i]) {
$doc = &$child->ul[0];
$root = false;
break;
}
}
if ($i == $start-1) {
$found = true;
break;
}
}
if ((!is_a($doc, 'JSimpleXMLElement')) || (!$found) || ($root)) {
$doc = false;
}
}
}
if ($doc && is_callable($decorator)) {
$doc->map($decorator, array('end'=>$end, 'children'=>$sChild));
}
return $doc;
}
function render(&$params, $callback)
{
switch ( $params->get( 'menu_style', 'list' ) )
{
case 'list_flat' :
// Include the legacy library file
require_once(dirname(__FILE__).DS.'legacy.php');
mosShowHFMenu($params, 1);
break;
case 'horiz_flat' :
// Include the legacy library file
require_once(dirname(__FILE__).DS.'legacy.php');
mosShowHFMenu($params, 0);
break;
case 'vert_indent' :
// Include the legacy library file
require_once(dirname(__FILE__).DS.'legacy.php');
mosShowVIMenu($params);
break;
default :
// Include the new menu class
$xml = modMainMenuHelper::getXML($params->get('menutype'), $params, $callback);
if ($xml) {
$class = $params->get('class_sfx');
$xml->addAttribute('class', 'menu'.$class);
if ($tagId = $params->get('tag_id')) {
$xml->addAttribute('id', $tagId);
}
$result = JFilterOutput::ampReplace($xml->toString((bool)$params->get('show_whitespace')));
$result = str_replace(array('<ul/>', '<ul />'), '', $result);
echo $result;
}
break;
}
}
}
/**
* Main Menu Tree Class.
*
* @package Joomla
* @subpackage Menus
* @since 1.5
*/
class JMenuTree extends JTree
{
/**
* Node/Id Hash for quickly handling node additions to the tree.
*/
var $_nodeHash = array();
/**
* Menu parameters
*/
var $_params = null;
/**
* Menu parameters
*/
var $_buffer = null;
function __construct(&$params)
{
$this->_params =& $params;
$this->_root = new JMenuNode(0, 'ROOT');
$this->_nodeHash[0] =& $this->_root;
$this->_current =& $this->_root;
}
function addNode(&$params, $item)
{
// Get menu item data
$data = $this->_getItemData($params, $item);
// Create the node and add it
$node = new JMenuNode($item->id, $item->name, $item->access, $data);
if (isset($item->mid)) {
$nid = $item->mid;
} else {
$nid = $item->id;
}
$this->_nodeHash[$nid] =& $node;
$this->_current =& $this->_nodeHash[$item->parent];
if ($item->type == 'menulink' && !empty($item->query['Itemid'])) {
$node->mid = $item->query['Itemid'];
}
if ($this->_current) {
$this->addChild($node, true);
} else {
// sanity check
JError::raiseError( 500, 'Orphan Error. Could not find parent for Item '.$item->id );
}
}
function toXML()
{
// Initialize variables
$this->_current =& $this->_root;
// Recurse through children if they exist
while ($this->_current->hasChildren())
{
$this->_buffer .= '<ul>';
foreach ($this->_current->getChildren() as $child)
{
$this->_current = & $child;
$this->_getLevelXML(0);
}
$this->_buffer .= '</ul>';
}
if($this->_buffer == '') { $this->_buffer = '<ul />'; }
return $this->_buffer;
}
function _getLevelXML($depth)
{
$depth++;
// Start the item
$rel = (!empty($this->_current->mid)) ? ' rel="'.$this->_current->mid.'"' : '';
$this->_buffer .= '<li access="'.$this->_current->access.'" level="'.$depth.'" id="'.$this->_current->id.'"'.$rel.'>';
// Append item data
$this->_buffer .= $this->_current->link;
// Recurse through item's children if they exist
while ($this->_current->hasChildren())
{
$this->_buffer .= '<ul>';
foreach ($this->_current->getChildren() as $child)
{
$this->_current = & $child;
$this->_getLevelXML($depth);
}
$this->_buffer .= '</ul>';
}
// Finish the item
$this->_buffer .= '</li>';
}
function _getItemData(&$params, $item)
{
$data = null;
// Menu Link is a special type that is a link to another item
if ($item->type == 'menulink')
{
$menu = &JSite::getMenu();
if ($newItem = $menu->getItem($item->query['Itemid'])) {
$tmp = clone($newItem);
$tmp->name = '<span><![CDATA['.$item->name.']]></span>';
$tmp->mid = $item->id;
$tmp->parent = $item->parent;
} else {
return false;
}
} else {
$tmp = clone($item);
$tmp->name = '<span><![CDATA['.$item->name.']]></span>';
}
$iParams = new JParameter($tmp->params);
if ($params->get('menu_images') && $iParams->get('menu_image') && $iParams->get('menu_image') != -1) {
switch ($params->get('menu_images_align', 0)){
case 0 :
$imgalign='align="left"';
break;
case 1 :
$imgalign='align="right"';
break;
default :
$imgalign='';
break;
}
$image = '<img src="'.JURI::base(true).'/images/stories/'.$iParams->get('menu_image').'" '.$imgalign.' alt="'.$item->alias.'" />';
if($tmp->ionly){
$tmp->name = null;
}
} else {
$image = null;
}
switch ($tmp->type)
{
case 'separator' :
return '<span class="separator">'.$image.$tmp->name.'</span>';
break;
case 'url' :
if ((strpos($tmp->link, 'index.php?') === 0) && (strpos($tmp->link, 'Itemid=') === false)) {
$tmp->url = $tmp->link.'&Itemid='.$tmp->id;
} else {
$tmp->url = $tmp->link;
}
break;
default :
$router = JSite::getRouter();
$tmp->url = $router->getMode() == JROUTER_MODE_SEF ? 'index.php?Itemid='.$tmp->id : $tmp->link.'&Itemid='.$tmp->id;
break;
}
// Print a link if it exists
if ($tmp->url != null)
{
// Handle SSL links
$iSecure = $iParams->def('secure', 0);
if ($tmp->home == 1) {
$tmp->url = JURI::base();
} elseif (strcasecmp(substr($tmp->url, 0, 4), 'http') && (strpos($tmp->link, 'index.php?') !== false)) {
$tmp->url = JRoute::_($tmp->url, true, $iSecure);
} else {
$tmp->url = str_replace('&', '&', $tmp->url);
}
switch ($tmp->browserNav)
{
default:
case 0:
// _top
$data = '<a href="'.$tmp->url.'">'.$image.$tmp->name.'</a>';
break;
case 1:
// _blank
$data = '<a href="'.$tmp->url.'" target="_blank">'.$image.$tmp->name.'</a>';
break;
case 2:
// window.open
$attribs = 'toolbar=no,location=no,status=no,menubar=no,scrollbars=yes,resizable=yes,'.$this->_params->get('window_open');
// hrm...this is a bit dickey
$link = str_replace('index.php', 'index2.php', $tmp->url);
$data = '<a href="'.$link.'" onclick="window.open(this.href,\'targetWindow\',\''.$attribs.'\');return false;">'.$image.$tmp->name.'</a>';
break;
}
} else {
$data = '<a>'.$image.$tmp->name.'</a>';
}
return $data;
}
}
/**
* Main Menu Tree Node Class.
*
* @package Joomla
* @subpackage Menus
* @since 1.5
*/
class JMenuNode extends JNode
{
/**
* Node Title
*/
var $title = null;
/**
* Node Link
*/
var $link = null;
/**
* CSS Class for node
*/
var $class = null;
function __construct($id, $title, $access = null, $link = null, $class = null)
{
$this->id = $id;
$this->title = $title;
$this->access = $access;
$this->link = $link;
$this->class = $class;
}
}