/public/codeCore/Classes/php/Menu.php

<?php
/**
  * contains Menu Class
  * @package MooKit
  */
/**
 * A Class for creating a Menu
 *
 * Creates an array of link objects with optional sublink objects
 *
 * @author Corbin Tarrant
 * @birth March 30th, 2010
 * @package MooKit
 */
class Menu {
	/** @var array $links	an array of Link objects	*/
	var $links;
	
	/**
	 * Constructor
	 *
	 * @param string $path
	 */
	public function __construct($links=NULL) {
		if($links)
			$this->links = $links;
		else
			$this->links = array();
	}
	/** 
	  * Create a new Link
	  * @param 	array	$userInput	array containing keys { name, href, desc, weight, ajaxLink, menuLink, access_level }
	  * @param 	array 	$sublinks		optional array of sublinks
	  */
	public function add($userInput, $sublinks=NULL) {
		array_push($this->links,new Link($userInput,$sublinks));
	}
	/**
	  * Add a new SubLink to the last created Link
	  * @param 	array	$userInput	array containing keys { name, href, desc, weight, ajaxLink, menuLink, access_level }
	  * @param	array	$sublinks		optional array of sublinks
	  */
	public function addSub($userInput, $sublinks=NULL) {
		$this->links[sizeof($this->links)-1]->addSub($userInput, $sublinks);
	}
	/**
	  * Sort all the links and sublinks by weight
	  */
	public function sortWeight() {
		//used to frag another sort check when links are swapped
		$SORTEDLINKS = FALSE;
		while(!$SORTEDLINKS) {
			$SORTEDLINKS = TRUE;
			//sort links
			$numLinks = sizeof($this->links)-1;
			for($x=0; $x<$numLinks; $x++) {
				//sort links
				if( (int)$this->links[$x]->weight > (int)$this->links[$x+1]->weight ) {
					list($this->links[$x+1],$this->links[$x]) = array($this->links[$x],$this->links[$x+1]);
					$SORTEDLINKS = FALSE;
				}
			}
		}
		//used to flag another sort check when sublinks are swapped
		$SORTEDSUBLINKS = FALSE;
		while(!$SORTEDSUBLINKS) {
			$SORTEDSUBLINKS = TRUE;
			//sort sublinks
			for($x=0; $x<$numLinks; $x++) {
				$numSublinks = sizeof($this->links[$x]->sublinks)-1;
				for($y = 0; $y < $numSublinks; $y++) { 
					//compare sublink weight with next weight and swap if needed
					if( (int)$this->links[$x]->sublinks[$y]->weight > (int)$this->links[$x]->sublinks[$y+1]->weight ) {
						list($this->links[$x]->sublinks[$y+1],$this->links[$x]->sublinks[$y]) = array($this->links[$x]->sublinks[$y],$this->links[$x]->sublinks[$y+1]);
						$SORTEDSUBLINKS = FALSE;
					}
				}
			}
		}
	}
	/**
	  * Output all the links and sublinks in formatted html
	  * @param string $linkContainer		must be a valid html element, these will hold the links
	  * @param string $sublinkContainer	must be a valid html element, these will hold the sublinks
	  * @param string $linkClass			CSS class for links
	  * @param string $sublinkClass		CSS class for sublinks
	  * @param string $ajaxLinkClass		CSS class for ajaxlinks
	  */
	public function output($linkContainer="div",$sublinkContainer="span",$linkClass='link',$sublinkClass="sublink",$ajaxLinkClass='ajaxLink') {
		foreach($this->links as $link): ?>
		<? echo "<".$linkContainer." class=".$linkClass.">"; ?>
			<? echo '<a '; if($link->ajaxLink) { echo 'class="'.$ajaxLinkClass; } ?> <? echo " target=\"_blank\" href=\"$link->href\">$link->name</a>"; ?>
			<? if(isset($link->desc) && $link->desc!='')	echo "<span class=\"linkDesc\">$link->desc</span>";
			if(isset($link->sublinks))  { ?>
				<?	foreach($link->sublinks as $sublink): /* <!-- Optional Sublinks --> */ ?>
					<? echo "<$sublinkContainer class=\"$sublinkClass\">"; ?>
						<? echo '<a '; if($sublink->ajaxLink) { echo 'class="'.$ajaxLinkClass; } ?> <? echo "\" target=\"_blank\" href=\"$sublink->href\">$sublink->name</a>"; ?>
						<? if(isset($sublink->desc) && $sublink->desc!='')	echo "<span class=\"linkDesc\">$sublink->desc</span>"; ?>
					<? echo "</".$sublinkContainer.">"; ?>
				 <? endforeach;//$links->sublinks' ?> 
			<? } ?> 
		<? echo "</".$linkContainer.">"; ?>
	<? endforeach; //$links->links  
	
	}
	/** Create the main menu from database tables using the user's access_level */
	public static function buildMain() {
		//grab links for current security clearance
		$menuLinks = Link::get('',TRUE,"object",false,Security::clearance());
		//create Menu object
		$mainMenu = new Menu;
		//store last link id to determine if this is a sublink row
		$lastLink_id = null;
		foreach($menuLinks as $link) {
			//avoid double display of links
			if($link->link_id != $lastLink_id) {
				//add this link to the menu
				$mainMenu->add(array('name'=>$link->name,
								     'href'=>$link->href,
								     'desc'=>$link->desc,
								     'weight'=>$link->weight,
								     'ajaxLink'=>$link->ajaxLink,
								     'menuLink'=>$link->menuLink,
								     'access_level'=>$link->access_level));
				//add first sublink - need this because the first sublink is stored on the row of the link itself
				if($link->sublink_id) {
					//add first sublink
					$mainMenu->addSub(array('name'=>$link->sub_name,
										   'href'=>$link->sub_href,
										   'desc'=>$link->sub_desc,
										   'weight'=>$link->sub_weight,
										   'ajaxLink'=>$link->sub_ajaxLink,
										   'menuLink'=>$link->sub_menuLink,
										   'access_level'=>$link->sub_access_level));
				}
			} else {
				//add subsequent sublink
				$mainMenu->addSub(array('name'=>$link->sub_name,
										   'href'=>$link->sub_href,
										   'desc'=>$link->sub_desc,
										   'weight'=>$link->sub_weight,
										   'ajaxLink'=>$link->sub_ajaxLink,
										   'menuLink'=>$link->sub_menuLink,
										   'access_level'=>$link->sub_access_level));
			}
			$lastLink_id = $link->link_id;
		}
		//sort weight and then return sorted menu
		$mainMenu->sortWeight();
		return $mainMenu;
	}
}
?>