Current File : /home/lightco1/www/lightcolab.com/libraries/src/Menu/Tree.php
<?php
/**
* Joomla! Content Management System
*
* @copyright Copyright (C) 2005 - 2018 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\CMS\Menu;
defined('JPATH_PLATFORM') or die;
/**
* Menu Tree class to represent a menu tree hierarchy
*
* @since 3.8.0
*/
class Tree
{
/**
* The root menu node
*
* @var Node
*
* @since 3.8.0
*/
protected $root = null;
/**
* The current working menu node
*
* @var Node
*
* @since 3.8.0
*/
protected $current = null;
/**
* The CSS style array
*
* @var string[]
*
* @since 3.8.0
*/
protected $css = array();
/**
* Constructor
*
* @since 3.8.0
*/
public function __construct()
{
$this->root = new Node;
$this->current = $this->root;
}
/**
* Get the root node
*
* @return Node
*
* @since 3.8.0
*/
public function getRoot()
{
return $this->root;
}
/**
* Get the current node
*
* @return Node
*
* @since 3.8.0
*/
public function getCurrent()
{
return $this->current;
}
/**
* Get the current node
*
* @param Node $node The node to be set as current
*
* @return void
*
* @since 3.8.0
*/
public function setCurrent($node)
{
if ($node)
{
$this->current = $node;
}
}
/**
* Method to get the parent and set it as active optionally
*
* @param bool $setCurrent Set that parent as the current node for further working
*
* @return Node
*
* @since 3.8.0
*/
public function getParent($setCurrent = true)
{
$parent = $this->current->getParent();
if ($setCurrent)
{
$this->setCurrent($parent);
}
return $parent;
}
/**
* Method to reset the working pointer to the root node and optionally clear all menu nodes
*
* @param bool $clear Whether to clear the existing menu items or just reset the pointer to root element
*
* @return Node The root node
*
* @since 3.8.0
*/
public function reset($clear = false)
{
if ($clear)
{
$this->root = new Node;
$this->css = array();
}
$this->current = $this->root;
return $this->current;
}
/**
* Method to add a child
*
* @param Node $node The node to process
* @param bool $setCurrent Set this new child as the current node for further working
*
* @return Node The newly added node
*
* @since 3.8.0
*/
public function addChild(Node $node, $setCurrent = false)
{
$this->current->addChild($node);
if ($setCurrent)
{
$this->setCurrent($node);
}
return $node;
}
/**
* Method to get the CSS class name for an icon identifier or create one if
* a custom image path is passed as the identifier
*
* @return string CSS class name
*
* @since 3.8.0
*/
public function getIconClass()
{
static $classes = array();
$identifier = $this->current->get('class');
// Top level is special
if (trim($identifier) == '' || !$this->current->hasParent())
{
return null;
}
if (!isset($classes[$identifier]))
{
// We were passed a class name
if (substr($identifier, 0, 6) == 'class:')
{
$class = substr($identifier, 6);
}
// We were passed background icon url. Build the CSS class for the icon
else
{
$class = preg_replace('#\.[^.]*$#', '', basename($identifier));
$class = preg_replace('#\.\.[^A-Za-z0-9\.\_\- ]#', '', $class);
if ($class)
{
$this->css[] = ".menu-$class {background: url($identifier) no-repeat;}";
}
}
$classes[$identifier] = "menu-$class";
}
return $classes[$identifier];
}
/**
* Get the CSS declarations for this tree
*
* @return string[]
*
* @since 3.8.0
*/
public function getCss()
{
return $this->css;
}
}
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