Navigo – Navigation / split Level1 and Level2

Hi all

I need some help modifing the Navigation Plugin “Navigo” from http://www.adahas.com/work/navigo/.

Usualy Navigo creates nested Lists for Submenu-Pages Like:

<ul id="level1">
<li id="level1active"><a id="level1current" href="" title="Link1">Link1</a>
  <ul id="level2">
      <li><a href="" title="Level2 Link">Level2 Link</a></li>
  </ul>
</li>
</ul>

Because I want to create the Level1 Navigation with Cufon Font Replacement, I should have Level2 outside of the active li, like…

<ul id="level1">
<li id="level1active"><a id="level1current" href="" title="Link1">Link1</a></li>
  <ul id="level2">
      <li><a href="" title="Level2 Link">Level2 Link</a></li>
  </ul>
</ul>

Would be very grateful if someone can help me out with this issue because my PHP-Skills aren`t that good.

Here is the navigo.php File that creates the nested Lists.

load_plugin_textdomain('navigo');

function navigo($args = '', $from_page_content = false) {
	$content = '';

	global $wp_query;
	$queried_obj = $wp_query->get_queried_object();

	// parse all args, and if not specified, initialize to defaults
	parse_str($args, $r);

	if (!isset($r['child_of'])) $r['child_of'] = 0;
	if (!isset($r['depth'])) $r['depth'] = 0;
	if (!isset($r['hidden_depth'])) $r['hidden_depth'] = 0;
	if (!isset($r['collapse'])) $r['collapse'] = false;
	if (!isset($r['leading_tabs'])) $r['leading_tabs'] = 2;
	if (!isset($r['sort_column'])) $r['sort_column'] = '';
	if (!isset($r['exclude'])) $r['exclude'] = '';

	// get all page information
	$pages_params = '';
	if(strlen($r['sort_column']) > 0)
		$pages_params = 'sort_column=' . $r['sort_column'];

	if(strlen($r['exclude']) > 0){
	$pages_params = $pages_params.'&exclude='.$r['exclude'];
	}

	$pages = get_pages($pages_params);

	if ( $pages ) {

		// construct the page tree
		$page_tree = array();

		// collect all page ids
		$keys = array_keys($pages);
		$indexes = array();
		for($i = 0; $i < sizeof($keys); $i++) {
			$indexes[$keys[$i]] = $pages[$keys[$i]]->ID;
		}

		// collect all parent ids
		$parents = array();
		$child_id = $queried_obj->ID;

		while($child_id != 0) {
			$parent_id = $pages[array_search($child_id, $indexes)]->post_parent;
			array_push($parents, $parent_id);
			$child_id = $parent_id;
		}

		// clear parent if root differs from the current page root
		if($r['child_of'] != 0 && !strcmp(array_search($r['child_of'], $parents), '') ) {
			$parents = array();
		}

		foreach($pages as $page) {
			$page_tree[$page->ID]['title'] = $page->post_title;
			$page_tree[$page->ID]['name'] = $page->post_name;
			$page_tree[$page->post_parent]['children'][] = $page->ID;
		}

		// prepare indentation level
		$indent = "";
		for($i = 0; $i < ($r['leading_tabs'] - $r['hidden_depth']); $i++) {
			$indent .= "\t";
		}

		// root list element - start
		if($r['hidden_depth'] < 1) {
			$id = 'level1';
			if(isset($r[$id])) $id = $r[$id];

			$attribute = "class";
			if($r['collapse'])
				$attribute = "id";

			$content .= "\n" . $indent . '<ul ' . $attribute . '="' . $id . '">';
		}

		// method call to display level
		$content .= _navigo_subs($r['child_of'], $page_tree, $r, $parents, $pages, $indexes, $queried_obj, 1);

		// root list element - end
		if($r['hidden_depth'] < 1) {
			$content .= "\n" . $indent . '</ul>';
		}
	}

	if($from_page_content)
		return $content;
	else
		echo($content);
}

function _navigo_subs($parent, $page_tree, $r, $parents, $pages, $indexes, $queried_obj, $current_level) {

	$content = '';

	foreach($page_tree[$parent]['children'] as $page_id) {

		// get a reference to the current page for easy access
		$cur_page = $page_tree[$page_id];

		// prepare indentation level
		$indent = "";
		for($i = 0; $i < ($r['leading_tabs'] + $current_level - $r['hidden_depth']); $i++) {
			$indent .= "\t";
		}

		// prepare current and active ids
		$active = '';
		$current = '';

		$attribute = "class";
		if($r['collapse'])
			$attribute = "id";

		// prepare ids for active and current elements
		if(in_array($page_id, $parents) || $page_id == $queried_obj->ID) {
			$id = 'level' . $current_level;
			if(isset($r[$id])) $id = $r[$id];

			$active = ' ' . $attribute . '="' . $id . 'active"';

			if(in_array($page_id, $parents)) {
				$current = ' ' . $attribute . '="' . $id . 'highlight"';
			}
			else {
				$current = ' ' . $attribute . '="' . $id . 'current"';
			}
		}

		}

		// end list item elements if hidden depth not exceeded
		if( $r['hidden_depth'] < $current_level)  {
			$content .= '</li>';
		}
	// start list item element if hidden depth not exceeded
		if( $r['hidden_depth'] < $current_level)  {
			$content .= "\n" . $indent . '<li' . $active . '>';
			$content .= '<a' . $current . ' href="' . get_page_link($page_id) . '" title="' . wp_specialchars($cur_page['title']) . '">' . $cur_page['title'] . '</a>';
		}

		// restrict dispaying if collapsable mode
		if((! $r['collapse']) || (in_array($page_id, $parents) || $page_id == $queried_obj->ID)) {

			// check whether element is a leaf node
			if(isset($cur_page['children']) && is_array($cur_page['children'])) {

				// check for display depth limit
				if($r['depth'] > $current_level || $r['depth'] == 0) {

					// sub list element - start
					$id = 'level' . ($current_level + 1);
					if(isset($r[$id])) $id = $r[$id];

					$content .= "\n" . $indent . '<ul ' . $attribute . '="' . $id . '">';

					// method call to display level
					$content .= _navigo_subs($page_id, $page_tree, $r, $parents, $pages, $indexes, $queried_obj, $current_level + 1);

					// sub list element - start
					$content .= "\n" . $indent . '</ul>';
				}
			}}

	return $content;
}

// replace placeholder by generated code
function navigo_insert( $content ) {
	$matches = array();
	if(preg_match('#<!--navigo:(.*)-->#', $content, $matches)) {
		$replace_string = '<!--navigo:' . $matches[1] . '-->';
		$matches[1] = str_replace(', ', '&', $matches[1]);
		$content = str_replace($replace_string, navigo(trim($matches[1]), true), $content);
	}
	return $content;
}

function navigo_admin_include() {
    include(dirname(__FILE__).'/navigo-options.php');
}

// display options tab in wp-admin
function navigo_options_page() {
	add_options_page('navigo Options', 'navigo', 8, __FILE__, 'navigo_admin_include');
}

// add actions and filters
add_action('admin_menu', 'navigo_options_page', 8);
add_filter('the_content', 'navigo_insert', 7);
?>