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<?php
/**
* @version $Id: gantrymenu.class.php 11319 2013-06-07 15:26:51Z steph $
* @author RocketTheme http://www.rockettheme.com
* @copyright Copyright (C) 2007 - 2016 RocketTheme, LLC
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 only
*
* Gantry uses the Joomla Framework (http://www.joomla.org), a GNU/GPLv2 content management system
*
*/
// no direct access
defined('GANTRY_VERSION') or die('Restricted access');
// Include the syndicate functions only once
gantry_import('facets.menu.gantrymenutree');
class GantryMenu
{
var $_menudata = null;
var $_formatter = null;
var $_layout_path = null;
var $__cacheables = array(
'_menudata'
);
function __sleep()
{
return $this->__cacheables;
}
// static function to get an instance of the GantryMenu
function &getInstance(GantryRegistry $params)
{
/** @var $gantry Gantry */
global $gantry;
$conf = JFactory::getConfig();
if ($conf->get('caching') && $params->get("module_cache", 0)) {
$user = JFactory::getUser();
$cache = JFactory::getCache('Gantry');
$cache->setCaching(true);
$cache->setLifeTime($gantry->get("cache-time", $conf->get('cachetime') * 60));
$args = array(&$params);
$checksum = md5($params->toString());
$gantrymenu = $cache->get(array(
'GantryMenu',
'_getInstance'
), $args, 'GantryMenu-' . $user->get('aid', 0) . '-' . $checksum);
} else {
$gantrymenu = GantryMenu::_getInstance($params);
}
return $gantrymenu;
}
static function &_getInstance($params)
{
$gantrymenu = new GantryMenu($params);
return $gantrymenu;
}
function GantryMenu($params)
{
if (empty($params)) {
$params = new GantryRegistry();
}
$params->def('menutype', 'mainmenu');
$params->def('class_sfx', '');
$params->def('menu_images', 0);
// Added in 1.5
$params->def('startLevel', 0);
$params->def('endLevel', 0);
$params->def('showAllChildren', 0);
$this->_menudata = GantryMenu::_getMenuData($params);
}
function render($params)
{
$theme_name = $params->get('theme', 'basic');
$this->_loadTheme($theme_name);
// Run the basic formatter
GantryMenu::_applyBasicFormatting($this->_menudata);
if (!empty($this->_formatter)) {
$this->_formatter->format_tree($this->_menudata);
}
// format the menu data $menu is passed to the layout
$menu = &$this->_menudata;
$menurender = "Unable to render menu missing layout.php for theme " . $theme_name;
if (!empty($this->_layout_path) && file_exists($this->_layout_path) && is_readable($this->_layout_path)) {
ob_start();
require($this->_layout_path);
$menurender = ob_get_contents();
ob_end_clean();
}
return $menurender;
}
function _getMenuData(&$params)
{
$menu = new GantryMenuTree();
$menu->_params = &$params;
$app = JFactory::getApplication();
$items = $app->getMenu();
// Get Menu Items
$rows = $items->getItems('menutype', $params->get('menutype'));
$maxdepth = $menu->getParameter('endLevel', 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))) {
$row->ionly = $params->get('menu_images_link');
if (!$menu->addNode($params, $row)) {
if (!array_key_exists($row->id, $unresolved) || $unresolved[$row->id] < $maxdepth) {
array_push($rows, $row);
if (!isset($unresolved[$row->id])) $unresolved[$row->id] = 1; else $unresolved[$row->id]++;
}
}
}
}
return $menu;
}
function _loadTheme($theme_name)
{
/** @var $gantry Gantry */
global $gantry;
// Load up the theme info if there is not one already
if (empty($this->_formatter)) {
$theme_parent_paths = array(
$gantry->templatePath . '/facets/menu/themes', $gantry->gantryPath . '/facets/menu/themes'
);
foreach ($theme_parent_paths as $theme_parent_path) {
if (file_exists($theme_parent_path) && is_dir($theme_parent_path)) {
$d = dir($theme_parent_path);
while (false !== ($entry = $d->read())) {
if ($entry != '.' && $entry != '..') {
if ($entry == $theme_name && is_dir($theme_parent_path . '/' . $entry)) {
$formatter_file = $theme_parent_path . '/' . $entry . '/' . 'formatter.php';
$layout_file = $theme_parent_path . '/' . $entry . '/' . 'layout.php';
$formatter_class = 'GantryMenuFormatter' . ucfirst($entry);
if (!file_exists($formatter_file)) {
return false;
}
// Load the Formatter File
require_once($formatter_file);
if (!class_exists($formatter_class)) {
return false;
}
$this->_formatter = new $formatter_class();
if (file_exists($layout_file)) {
$this->_layout_path = $layout_file;
}
break(2); // exit top level foreach
}
}
}
}
}
}
}
/**
* Perform the basic common formatting to all menu nodes
*/
function _applyBasicFormatting(&$menu)
{
//set the active tree branch
$app = JFactory::getApplication();
$joomlamenu = $app->getMenu();
$active = $joomlamenu->getActive();
if (isset($active) && isset($active->tree) && count($active->tree)) {
reset($active->tree);
while (list($key, $value) = each($active->tree)) {
$active_node =& $active->tree[$key];
$active_child = $menu->findChild($active_node);
if ($active_child !== false) {
$active_child->addListItemClass('active');
}
}
}
// set the current node
if (isset($active)) {
$current_child = $menu->findChild($active->id);
if ($current_child !== false && !$current_child->menualias) {
$current_child->css_id = 'current';
}
}
// Limit the levels of the tree is called for By limitLevels
if ($menu->getParameter('limit_levels')) {
$start = $menu->getParameter('startLevel');
$end = $menu->getParameter('endLevel');
//Limit to the active path if the start is more the level 0
if ($start > 0) {
$found = false;
// get active path and find the start level that matches
if (isset($active) && isset($active->tree) && count($active->tree)) {
reset($active->tree);
while (list($key, $value) = each($active->tree)) {
$active_child = $menu->findChild($active->tree[$key]);
if ($active_child != null && $active_child !== false) {
if ($active_child->level == $start - 1) {
$menu->resetTop($active_child->id);
$found = true;
break;
}
}
}
}
if (!$found) {
$menu->_children = array();
}
}
//remove lower then the defined end level
$menu->removeLevel($end);
}
// Remove the child nodes that were not needed to display unless showAllChildren is set
$showAllChildren = $menu->getParameter('showAllChildren');
if (!$showAllChildren) {
if ($menu->hasChildren()) {
reset($menu->_children);
while (list($key, $value) = each($menu->_children)) {
$toplevel =& $menu->_children[$key];
if (isset($active) && isset($active->tree) && in_array($toplevel->id, $active->tree) !== false) {
$last_active = $menu->findChild($active->tree[count($active->tree) - 1]);
if ($last_active !== false) {
$toplevel->removeIfNotInTree($active->tree, $last_active->id);
//$toplevel->removeLevel($last_active->level+1);
}
} else {
$toplevel->removeLevel($toplevel->level);
}
}
}
}
}
}