ID, 'is_column', true ); if ( isset( $args->item_spacing ) && 'discard' === $args->item_spacing ) { $t = ''; $n = ''; } else { $t = "\t"; $n = "\n"; } $indent = ( $depth ) ? str_repeat( $t, $depth ) : ''; $classes = empty( $item->classes ) ? array() : (array) $item->classes; $classes[] = 'menu-item-' . $item->ID; if ( $is_column ) { $classes[] = 'menu-item-column'; } $args = apply_filters( 'nav_menu_item_args', $args, $item, $depth ); $class_names = implode( ' ', apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args, $depth ) ); $class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : ''; $id = apply_filters( 'nav_menu_item_id', 'menu-item-' . $item->ID, $item, $args, $depth ); $id = $id ? ' id="' . esc_attr( $id ) . '"' : ''; $output .= $indent . ''; $atts = array(); $atts['title'] = ! empty( $item->attr_title ) ? $item->attr_title : ''; $atts['target'] = ! empty( $item->target ) ? $item->target : ''; if ( '_blank' === $item->target && empty( $item->xfn ) ) { $atts['rel'] = 'noopener'; } else { $atts['rel'] = $item->xfn; } $atts['href'] = ! empty( $item->url ) ? $item->url : ''; $atts['aria-current'] = $item->current ? 'page' : ''; $atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args, $depth ); $attributes = ''; foreach ( $atts as $attr => $value ) { if ( is_scalar( $value ) && '' !== $value && false !== $value ) { $value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value ); $attributes .= ' ' . $attr . '="' . $value . '"'; } } $title = apply_filters( 'the_title', $item->title, $item->ID ); $title = apply_filters( 'nav_menu_item_title', $title, $item, $args, $depth ); $item_output = $args->before; if ( ! $is_column ) { $item_output .= ''; $item_output .= $args->link_before . $title . $args->link_after; $item_output .= ''; } $item_output .= $args->after; $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args ); } /** * Custom Alpha menu element (image, description, button). * * @param object $element Data object. * @param array $children_elements List of elements to continue traversing (passed by reference). * @param int $max_depth Max depth to traverse. * @param int $depth Depth of current element. * @param array $args An array of arguments. * @param string $output Used to append additional content (passed by reference). */ public function display_element( $element, &$children_elements, $max_depth, $depth, $args, &$output ) { if ( ! $element ) { return; } $id_field = $this->db_fields['id']; $id = $element->$id_field; // Display this element. $this->has_children = ! empty( $children_elements[ $id ] ); if ( isset( $args[0] ) && is_array( $args[0] ) ) { $args[0]['has_children'] = $this->has_children; // Back-compat. } $this->start_el( $output, $element, $depth, ...array_values( $args ) ); // Descend only when the depth is right and there are children for this element. if ( ( 0 == $max_depth || $max_depth > $depth + 1 ) && isset( $children_elements[ $id ] ) ) { foreach ( $children_elements[ $id ] as $child ) { if ( ! isset( $newlevel ) ) { $newlevel = true; // Start the child delimiter. $this->start_lvl( $output, $depth, ...array_values( $args ) ); } $this->display_element( $child, $children_elements, $max_depth, $depth + 1, $args, $output ); } unset( $children_elements[ $id ] ); } if ( isset( $newlevel ) && $newlevel ) { // End the child delimiter. $this->end_lvl( $output, $depth, ...array_values( $args ) ); } // End this element. $this->end_el( $output, $element, $depth, ...array_values( $args ) ); } }