extended redaxo navigation factory

advanced_navigation_class.php

<?php
class advanced_rex_navigation extends rex_navigation {

	var $navigation_type;
	var $seperator;
	var $seperator_class;

	// überschreibe methode
	function _getNavigation($category_id, $ignore_offlines){
		static $depth = 0;

	    if($category_id < 1){
			$nav_obj = OOCategory::getRootCategories($ignore_offlines);
		}else{
			$nav_obj = OOCategory::getChildrenById($category_id, $ignore_offlines);
		}

	  	$return = "";

		if(count($nav_obj)>0){
			$return .= '<ul class="rex-navi'. ($depth+1) .'[count_elements]">';
		}
		
		$counter = 0;
		
		foreach($nav_obj as $nav){
			if($nav->getValue('cat_navigationstyp') != $this->navigation_type){
				continue;
			}
			$counter++;
			$liClass = '';
			$linkClass = '';

			// classes abhaengig vom pfad
			if($nav->getId() == $this->current_category_id){
				  $liClass .= ' rex-current';
				  $linkClass .= ' rex-current';
			}elseif(in_array($nav->getId(),$this->path)){
				$liClass .= ' rex-active';
				$linkClass .= ' rex-active';
			}else{
				$liClass .= ' rex-normal';
			}
			$liClass .= ' nav_'.$counter;
			// classes abhaengig vom level
			if(isset($this->classes[$depth])){
	        	$liClass .= ' '. $this->classes[$depth];
	        }

			if(isset($this->linkclasses[$depth])){
				$linkClass .= ' '. $this->linkclasses[$depth];
			}

			$liClass   = $liClass   == '' ? '' : ' class="'. ltrim($liClass) .'"';
			$linkClass = $linkClass == ' class="level'.($depth+1).'"' ? '' : ' class="'. ltrim($linkClass) .' level'.($depth+1).'"';
			$linkUrl = $this->_getUrl($nav);

			$return .= '<li '. $liClass .'>';
			$return .= '<a'. $linkClass .' href="'.$linkUrl.'">'.htmlspecialchars($nav->getName()).'</a>';

			$depth++;
			if(($this->open || $nav->getId() == $this->current_category_id || in_array($nav->getId(),$this->path)) && ($this->depth > $depth || $this->depth < 0)){
				$return .= $this->_getNavigation($nav->getId(),$ignore_offlines);
			}
			$depth--;

			$return .= '</li>';
		}

		if(count($nav_obj)>0){
			$return .= '</ul>';
		}
		if($this->seperator != '' && $depth == 0){
			$return = str_replace('</li><li','</li><li'.(trim($this->seperator_class) != '' ? ' class="'.$this->seperator_class.'"' : '').'>'.$this->seperator.'</li><li',$return);
		}
		$return = str_replace('[count_elements]', ' count_'.$counter, $return);
		return $return;
	}

	// überschreibe methode
	function get($category_id = 0,$depth = 3,$open = FALSE, $ignore_offlines = FALSE, $navigation_type = 'main'){
		if(!$this->_setActivePath()){
			return '';
		}
		
		$this->depth = $depth;
		$this->open = $open;
		$this->ignore_offlines = $ignore_offlines;
		$this->navigation_type = $navigation_type;

		return $this->_getNavigation($category_id,$this->ignore_offlines);
	}

	// gibt erste Kategorie mit Inhalt zurück
	function _getUrl($category){
		$url = $category->getUrl();
		$slice = OOArticleSlice::getFirstSliceForArticle($category->getId());
		if(!is_object($slice)){
			$children = $category->getChildren(true);
			if(sizeof($children) > 0){
				$url = $this->_getUrl($children[0]);
			}
		}
		return $url;
	}

	// Trennzeichen zwischen Navigationspunkten setzen
	function setSeperator($seperator = '|', $seperator_class = 'pipe'){
		$this->seperator = $seperator;
		$this->seperator_class = $seperator_class;
	}
}
?>

nav.php

<?php

  $nav = new advanced_rex_navigation();
  $main_navigation = $nav->get(0,3,FALSE,TRUE,'main');
 // 'main' is the name of the cat_navigationstyp
 // change to any value you want

  /* weitere setter methoden:
     $nav->setClasses(array('menu_item'));
     $nav->setSeperator('/');
  */

  /* setSeperator() fügt nach jedem Menüpunkt ein echtes <li class="seperator">WERT</li> hinzu */

  echo $main_navigation;
?>