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menu.php
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menu.php
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<?php
/**
* @version $Id$
* @package Joomla.Framework
* @subpackage Application
* @copyright Copyright (C) 2005 - 2011 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
// No direct access
defined('JPATH_BASE') or die;
/**
* JMenu class
*
* @package Joomla.Framework
* @subpackage Application
* @since 1.5
*/
class JMenu extends JObject
{
/**
* Array to hold the menu items
*
* @param array
*/
protected $_items = array ();
/**
* Identifier of the default menu item
*
* @param integer
*/
protected $_default = array();
/**
* Identifier of the active menu item
*
* @param integer
*/
protected $_active = 0;
/**
* Class constructor
*
* @param array $options An array of configuration options.
*
* @return JMenu
* @since 1.5
*/
public function __construct($options = array())
{
$this->load(); //load the menu items
foreach ($this->_items as $k => $item)
{
if ($item->home) {
$this->_default[$item->language] = $item->id;
}
// Decode params
$result = new JRegistry;
$result->loadJSON($item->params);
$item->params = $result;
}
}
/**
* Returns a JMenu object
*
* @param string The name of the client
* @param array An associative array of options
*
* @return JMenu A menu object.
* @since 1.5
*/
public static function getInstance($client, $options = array())
{
static $instances;
if (!isset($instances)) {
$instances = array();
}
if (empty($instances[$client])) {
//Load the router object
$info = JApplicationHelper::getClientInfo($client, true);
$path = $info->path.'/includes/menu.php';
if (file_exists($path)) {
require_once $path;
// Create a JPathway object
$classname = 'JMenu'.ucfirst($client);
$instance = new $classname($options);
}
else {
//$error = JError::raiseError(500, 'Unable to load menu: '.$client);
$error = null; //Jinx : need to fix this
return $error;
}
$instances[$client] = & $instance;
}
return $instances[$client];
}
/**
* Get menu item by id
*
* @param int $id The item id
*
* @return mixed The item object, or null if not found
* @since 1.5
*/
public function getItem($id)
{
$result = null;
if (isset($this->_items[$id])) {
$result = &$this->_items[$id];
}
return $result;
}
/**
* Set the default item by id and language code.
*
* @param int $id The menu item id.
* @param string $language The language cod (since 1.6).
*
* @return boolean True, if succesfull
* @since 1.5
*/
public function setDefault($id, $language='')
{
if (isset($this->_items[$id])) {
$this->_default[$language] = $id;
return true;
}
return false;
}
/**
* Get menu item by id
*
* @param string $language The language code.
*
* @return object The item object
* @since 1.5
*/
function getDefault($language='*')
{
if (array_key_exists($language, $this->_default)) {
return $this->_items[$this->_default[$language]];
}
else if (array_key_exists('*', $this->_default)) {
return $this->_items[$this->_default['*']];
}
else {
return 0;
}
}
/**
* Set the default item by id
*
* @param int $id The item id
*
* @return mixed If successfull the active item, otherwise null
*/
public function setActive($id)
{
if (isset($this->_items[$id])) {
$this->_active = $id;
$result = &$this->_items[$id];
return $result;
}
return null;
}
/**
* Get menu item by id.
*
* @return object The item object.
*/
public function getActive()
{
if ($this->_active) {
$item = &$this->_items[$this->_active];
return $item;
}
return null;
}
/**
* Gets menu items by attribute
*
* @param string $attributes The field name
* @param string $values The value of the field
* @param boolean $firstonly If true, only returns the first item found
*
* @return array
*/
public function getItems($attributes, $values, $firstonly = false)
{
$items = null;
$attributes = (array) $attributes;
$values = (array) $values;
foreach ($this->_items as $item)
{
if (!is_object($item)) {
continue;
}
$test = true;
for ($i=0, $count = count($attributes); $i < $count; $i++)
{
if (is_array($values[$i])) {
if (!in_array($item->$attributes[$i], $values[$i])) {
$test = false;
break;
}
}
else {
if ($item->$attributes[$i] != $values[$i]) {
$test = false;
break;
}
}
}
if ($test) {
if ($firstonly) {
return $item;
}
$items[] = $item;
}
}
return $items;
}
/**
* Gets the parameter object for a certain menu item
*
* @param int $id The item id
*
* @return object A JRegistry object
*/
public function getParams($id)
{
if ($menu = $this->getItem($id)) {
return $menu->params;
}
else {
return new JRegistry;
}
}
/**
* Getter for the menu array
*
* @return array
*/
public function getMenu()
{
return $this->_items;
}
/**
* Method to check JMenu object authorization against an access control
* object and optionally an access extension object
*
* @param integer $id The menu id
* @return boolean True if authorized
* @since 1.6
*/
public function authorise($id)
{
$menu = $this->getItem($id);
$user = JFactory::getUser();
if ($menu) {
return in_array((int) $menu->access, $user->getAuthorisedViewLevels());
}
else {
return true;
}
}
/**
* Loads the menu items
*
* @return array
*/
public function load()
{
return array();
}
}