-/**
- * Create HTML list of nav menu items.
- *
- * @package WordPress
- * @since 3.0.0
- * @uses Walker
- */
-class Walker_Nav_Menu extends Walker {
- /**
- * @see Walker::$tree_type
- * @since 3.0.0
- * @var string
- */
- var $tree_type = array( 'post_type', 'taxonomy', 'custom' );
-
- /**
- * @see Walker::$db_fields
- * @since 3.0.0
- * @todo Decouple this.
- * @var array
- */
- var $db_fields = array( 'parent' => 'menu_item_parent', 'id' => 'db_id' );
-
- /**
- * @see Walker::start_lvl()
- * @since 3.0.0
- *
- * @param string $output Passed by reference. Used to append additional content.
- * @param int $depth Depth of page. Used for padding.
- */
- function start_lvl( &$output, $depth = 0, $args = array() ) {
- $indent = str_repeat("\t", $depth);
- $output .= "\n$indent<ul class=\"sub-menu\">\n";
- }
-
- /**
- * @see Walker::end_lvl()
- * @since 3.0.0
- *
- * @param string $output Passed by reference. Used to append additional content.
- * @param int $depth Depth of page. Used for padding.
- */
- function end_lvl( &$output, $depth = 0, $args = array() ) {
- $indent = str_repeat("\t", $depth);
- $output .= "$indent</ul>\n";
- }
-
- /**
- * @see Walker::start_el()
- * @since 3.0.0
- *
- * @param string $output Passed by reference. Used to append additional content.
- * @param object $item Menu item data object.
- * @param int $depth Depth of menu item. Used for padding.
- * @param int $current_page Menu item ID.
- * @param object $args
- */
- function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) {
- $indent = ( $depth ) ? str_repeat( "\t", $depth ) : '';
-
- $class_names = $value = '';
-
- $classes = empty( $item->classes ) ? array() : (array) $item->classes;
- $classes[] = 'menu-item-' . $item->ID;
-
- $class_names = join( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ) );
- $class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
-
- $id = apply_filters( 'nav_menu_item_id', 'menu-item-'. $item->ID, $item, $args );
- $id = $id ? ' id="' . esc_attr( $id ) . '"' : '';
-
- $output .= $indent . '<li' . $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;
- $item_output .= '</a>';
- $item_output .= $args->after;
-
- $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
- }
-
- /**
- * @see Walker::end_el()
- * @since 3.0.0
- *
- * @param string $output Passed by reference. Used to append additional content.
- * @param object $item Page data object. Not used.
- * @param int $depth Depth of page. Not Used.
- */
- function end_el( &$output, $item, $depth = 0, $args = array() ) {
- $output .= "</li>\n";
- }
-}