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<?php
/**
* @version $Id: gantrymenutreebase.class.php 2325 2012-08-13 17:46:48Z btowles $
* @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
*
*/
defined('GANTRY_VERSION') or die('Restricted access');
jimport('joomla.base.tree');
class GantryMenuTreeBase
{
/**
* Base ID for the menu as ultimate parent
*/
var $id = 1;
var $parent = 0;
var $_parentRef = null;
var $level = -1;
var $access = 2;
var $_check_access_level = null;
var $_children = array();
function __construct($params = null)
{
$this->_params = &$params;
}
/**
* Menu parameters
*/
var $_params = null;
function addChild(&$node)
{
if (!$node->isAccessable()) {
return true;
}
if ($this->id == $node->parent) {
$node->_parentRef = &$this;
$this->_children[$node->id] =& $node;
return true;
} else if ($this->hasChildren()) {
reset($this->_children);
while (list($key, $value) = each($this->_children)) {
$child =& $this->_children[$key];
if ($child->addChild($node)) {
return true;
}
}
}
return false;
}
function hasChildren()
{
return count($this->_children);
}
function &getChildren()
{
return $this->_children;
}
function setParameters($params)
{
$this->_params = new GantryRegistry($params->toObject());
}
function getParameter($param)
{
if (null == $param || null == $this->_params) {
return null;
}
return $this->_params->get($param);
}
function &findChild($node_id)
{
if (array_key_exists($node_id, $this->_children)) {
return $this->_children[$node_id];
} else if ($this->hasChildren()) {
reset($this->_children);
while (list($key, $value) = each($this->_children)) {
$child =& $this->_children[$key];
$wanted_node = $child->findChild($node_id);
if ($wanted_node !== false) {
return $wanted_node;
}
}
}
$ret = false;
return $ret;
}
function removeChild($node_id)
{
if (array_key_exists($node_id, $this->_children)) {
unset($this->_children[$node_id]);
return true;
} else if ($this->hasChildren()) {
reset($this->_children);
while (list($key, $value) = each($this->_children)) {
$child =& $this->_children[$key];
$ret = $child->removeChild($node_id);
if ($ret === true) {
return $ret;
}
}
}
return false;
}
function removeLevel($end)
{
if ($this->level == $end) {
$this->_children = array();
} else if ($this->level < $end) {
if ($this->hasChildren()) {
reset($this->_children);
while (list($key, $value) = each($this->_children)) {
$child =& $this->_children[$key];
$child->removeLevel($end);
}
}
}
}
function removeIfNotInTree(&$active_tree, $last_active)
{
if (!empty($active_tree)) {
if (in_array((int)$this->id, $active_tree) && $last_active == $this->id) {
// i am the last node in the active tree
if ($this->hasChildren()) {
reset($this->_children);
while (list($key, $value) = each($this->_children)) {
$child =& $this->_children[$key];
$child->_children = array();
}
}
} else if (in_array((int)$this->id, $active_tree)) {
// i am in the active tree but not the last node
if ($this->hasChildren()) {
reset($this->_children);
while (list($key, $value) = each($this->_children)) {
$child =& $this->_children[$key];
$child->removeIfNotInTree($active_tree, $last_active);
}
}
} else {
// i am not in the active tree
$this->_children = array();
}
}
}
function isAccessable()
{
// $user =& JFactory::getUser();
// $groups = implode(',', $user->getAuthorisedViewLevels());
//
//
// //$aid = (int) $user->get('aid', 0);
// $aid = ($this->_check_access_level != null)? (int)$this->_check_access_level: (int) $user->get('aid', 0);
// if (null == $this->access ) {
// return null;
// }
// else if ($aid >= $this->access) {
// return true;
// }
// else {
// return false;
// }
return true;
}
function getParent()
{
return $this->_parentRef;
}
}