Enhance a walker function in wordpress for better sub-menu styling

  • 21cdb

    (@21cdb)


    12 years, 2 months ago

    Hey i’m using this function to extend my wordpress menu

    //improve menu output and allow descriptions
class My_Walker extends Walker_Nav_Menu
{
	function start_el(&$output, $item, $depth, $args) {
		global $wp_query;
		$indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';

		$class_names = $value = '';

		$classes = empty( $item->classes ) ? array() : (array) $item->classes;

		$class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item ) );
		$class_names = ' class="' . esc_attr( $class_names ) . '"';

		$output .= $indent . '<li id="menu-item-'. $item->ID . '"' . $value . $class_names .'>';

		$attributes  = ! empty( $item->attr_title ) ? ' title="'  . esc_attr( $item->attr_title ) .'"' : '';
		$attributes .= ! empty( $item->target )     ? ' target="' . esc_attr( $item->target     ) .'"' : '';
		$attributes .= ! empty( $item->xfn )        ? ' rel="'    . esc_attr( $item->xfn        ) .'"' : '';
		$attributes .= ! empty( $item->url )        ? ' href="'   . esc_attr( $item->url        ) .'"' : '';

		$item_output = $args->before;
		$item_output .= '<a'. $attributes .'>';
		$item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;
		if (strlen($item->description)>2) {
      $item_output .= '<br /><span class="sub">' . $item->description . '</span></a>';
} else {
     $item_output .= '</a>';
}
		$item_output .= $args->after;

		$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
	}
}

//strip sanitizers from menu description
remove_filter('nav_menu_description', 'strip_tags');

    It works very well but i’m missing some additional classes for the sub-menus (due to styling purpose.

    Is someone able to help me out in combining the function above with the following one:

    class UL_Class_Walker extends Walker_Nav_Menu {
  function start_lvl(&$output, $depth) {
    $indent = str_repeat("\t", $depth);
    $output .= "\n$indent<ul class=\"sub-menu level-".$depth."\"><span></span>\n";
  }
}

    Thanks in advance!

Viewing 1 replies (of 1 total)
  • Josh Davis

    (@maxxsnake)

    12 years, 2 months ago

    Coincidentally, I’m also using the top code and needed to implement something at the sub-menu level. You can just add the second function into the first, then call the first walker. Mine looks like:

    class description_walker extends Walker_Nav_Menu
{
      function start_el(&$output, $item, $depth, $args)
      {
           global $wp_query;
           $indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';

           $class_names = $value = '';

           $classes = empty( $item->classes ) ? array() : (array) $item->classes;

           $class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item ) );
           $class_names = ' class="'. esc_attr( $class_names ) . '"';

           $output .= $indent . '<li id="menu-item-'. $item->ID . '"' . $value . $class_names .'>';

           $attributes  = ! empty( $item->attr_title ) ? ' title="'  . esc_attr( $item->attr_title ) .'"' : '';
           $attributes .= ! empty( $item->target )     ? ' target="' . esc_attr( $item->target     ) .'"' : '';
           $attributes .= ! empty( $item->xfn )        ? ' rel="'    . esc_attr( $item->xfn        ) .'"' : '';
           $attributes .= ! empty( $item->url )        ? ' href="'   . esc_attr( $item->url        ) .'"' : '';

           $prepend = '<div class="top sans">';
           $append = '</div>';
           $description  = ! empty( $item->title ) ? '<div class="bottom">'.esc_attr( $item->attr_title ).'</div>' : '';

           if($depth != 0)
           {
                     $description = $append = $prepend = "";
           }

            $item_output = $args->before;
            $item_output .= '<a'. $attributes .'>';
            $item_output .= $args->link_before .$prepend.apply_filters( 'the_title', $item->title, $item->ID ).$append;
            $item_output .= $description.$args->link_after;
            $item_output .= '</a><div class="hidden"><div class="back"></div></div>';
            $item_output .= $args->after;

            $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
		}

		function start_lvl(&$output, $depth) {
		    $indent = str_repeat("\t", $depth);
		    $output .= "\n$indent<ul class=\"sub-menu level-".$depth."\"><span></span>\n";
		}
}

    Although I modified a few other things internally as needed and haven’t finished modding the second part (thanks for that) yet, but it is exporting the markup into the sub-menu appropriately.

Viewing 1 replies (of 1 total)
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