/im', $output, $matches ); // with pointer at end of array check if we got an ID match. if ( end( $matches[2] ) ) { // build a string to use as aria-labelledby. $labledby = 'aria-labelledby="' . end( $matches[2] ) . '"'; } $output .= "\n$indent

. $extra_link_classes = array(); $icon_class_string = ''; foreach ( $classes as $key => $class ) { // test if this is a disabled link, a header or a divider. if ( 'disabled' === $class || 'dropdown-header' === $class || 'dropdown-divider' === $class ) { $extra_link_classes[] = $class; unset( $classes[ $key ] ); } // test for icon classes - Supports Font Awesome and Glyphicons. if ( 'fa' === $class || 'fa-' === substr( $class, 0, 3 ) ) { // Because of the abiguity of just 'fa' at the start both // 'fa' & 'fa-' are tested for with Font Awesome icons. $icon_class_string .= $class . ' '; unset( $classes[ $key ] ); } elseif ( 'glyphicons' === substr( $class, 0, 10 ) ) { // This should be a glyphicon icon class. $icon_class_string .= $class . ' '; unset( $classes[ $key ] ); } } $classes[] = 'menu-item-' . $item->ID; // BSv4 classname - as of v4-alpha. $classes[] = 'nav-item'; // reasign any filtered classes back to the $classes array. $classes = apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args ); $class_names = join( ' ', $classes ); if ( $args->has_children ) { $class_names .= ' dropdown'; } if ( in_array( 'current-menu-item', $classes, true ) || in_array( 'current-menu-parent', $classes, true ) ) { $class_names .= ' active'; } $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 . '
'; $atts = array(); if ( empty( $item->attr_title ) ) { $atts['title'] = ! empty( $item->title ) ? strip_tags( $item->title ) : ''; } else { $atts['title'] = $item->attr_title; } $atts['target'] = ! empty( $item->target ) ? $item->target : ''; $atts['rel'] = ! empty( $item->xfn ) ? $item->xfn : ''; // If item has_children add atts to a. if ( $args->has_children && 0 === $depth && $args->depth > 1 ) { $atts['href'] = '#'; $atts['data-toggle'] = 'dropdown'; $atts['aria-haspopup'] = 'true'; $atts['aria-expanded'] = 'false'; $atts['class'] = 'dropdown-toggle nav-link'; $atts['id'] = 'menu-item-dropdown-' . $item->ID; } else { $atts['href'] = ! empty( $item->url ) ? $item->url : ''; // if we are in a dropdown then the the class .dropdown-item // should be used instead of .nav-link. if ( $depth > 0 ) { $atts['class'] = 'dropdown-item'; } else { $atts['class'] = 'nav-link'; } } // Set this as an indetifier flag to ease identifying special item // types later in the processing. Default will be '' or 'link'. $type_flag = 'link'; // Loop through the array of extra link classes plucked from the // parent
s classes array. if ( ! empty( $extra_link_classes ) ) { foreach ( $extra_link_classes as $link_class ) { if ( ! empty( $link_class ) ) { // update $atts with the extra class link. $atts['class'] .= ' ' . esc_attr( $link_class ); // check for special class types we need additional handling for. if ( 'disabled' === $link_class ) { // if the modification is a disabled class... // then # the link so it doesn't point anywhere. $atts['href'] = '#'; } elseif ( 'dropdown-header' === $link_class ) { // this is a header and needs a special flag $type_flag = 'dropdown-header'; } elseif ( 'dropdown-divider' === $link_class ) { // this is a divider and needs a special flag $type_flag = 'dropdown-divider'; } } } } $atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args ); $attributes = ''; foreach ( $atts as $attr => $value ) { if ( ! empty( $value ) ) { $value = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value ); $attributes .= ' ' . $attr . '="' . $value . '"'; } } $item_output = $args->before; // if $type_flag doesnt contain 'link' it's probably a header or a // divider for use in a dropdown. if ( 'dropdown-header' === $type_flag ) { // for a header I'm using a span with the .h6 class instead of // a real header tag so that it doesn't confuse screen readers. $item_output .= ''; } elseif ( 'dropdown-divider' === $type_flag ) { // this is a divider. $item_output .= '
'; } else { // it's most likely a link at this point. $item_output .= ''; } // initiate empty icon var, then if we have a string containing any // icon classes prepend them at the start of the item... $icon_html = ''; if ( ! empty( $icon_class_string ) ) { // append an with the icon classes to what is output before links. $icon_html = ' '; } $item_output .= $args->link_before . $icon_html . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after; // if $type_flag doesnt contain 'link' it's probably a header or a // divider for use in a dropdown. if ( 'dropdown-header' === $type_flag ) { // for a header I'm using a span with the .h6 class instead of // a real header tag so that it doesn't confuse screen readers. $item_output .= ''; } elseif ( 'dropdown-divider' === $type_flag ) { // this is a divider. $item_output .= '
'; } else { // it's most likely a link at this point. $item_output .= ''; } $item_output .= $args->after; $output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args ); } /** * Traverse elements to create list from elements. * * Display one element if the element doesn't have any children otherwise, * display the element and its children. Will only traverse up to the max * depth and no ignore elements under that depth. * * This method shouldn't be called directly, use the walk() method instead. * * @see Walker::start_el() * @since 2.5.0 * * @access public * @param mixed $element Data object. * @param mixed $children_elements List of elements to continue traversing. * @param mixed $max_depth Max depth to traverse. * @param mixed $depth Depth of current element. * @param mixed $args Arguments. * @param mixed $output Passed by reference. Used to append additional content. * @return null Null on failure with no changes to parameters. */ public function display_element( $element, &$children_elements, $max_depth, $depth, $args, &$output ) { if ( ! $element ) { return; } $id_field = $this->db_fields['id']; // Display this element. if ( is_object( $args[0] ) ) { $args[0]->has_children = ! empty( $children_elements[ $element->$id_field ] ); } parent::display_element( $element, $children_elements, $max_depth, $depth, $args, $output ); } /** * Menu Fallback * ============= * If this function is assigned to the wp_nav_menu's fallback_cb variable * and a menu has not been assigned to the theme location in the WordPress * menu manager the function with display nothing to a non-logged in user, * and will add a link to the WordPress menu manager if logged in as an admin. * * @param array $args passed from the wp_nav_menu function. */ public static function fallback( $args ) { if ( current_user_can( 'edit_theme_options' ) ) { /* Get Arguments. */ $container = $args['container']; $container_id = $args['container_id']; $container_class = $args['container_class']; $menu_class = $args['menu_class']; $menu_id = $args['menu_id']; // initialize var to store fallback html. $fallback_output = ''; if ( $container ) { $fallback_output = '<' . esc_attr( $container ); if ( $container_id ) { $fallback_output = ' id="' . esc_attr( $container_id ) . '"'; } if ( $container_class ) { $fallback_output = ' class="' . sanitize_html_class( $container_class ) . '"'; } $fallback_output = '>'; } $fallback_output = '' . esc_attr( 'Add a menu', '' ) . '

'; $fallback_output = '

'; if ( $container ) { $fallback_output = ''; } // if $args has 'echo' key and it's true echo, otherwise return. if ( array_key_exists( 'echo', $args ) && $args['echo'] ) { echo $fallback_output; // WPCS: XSS OK. } else { return $fallback_output; } } // End if(). } } } // End if().