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

\n"; } /** * Start El. * * @see Walker::start_el() * @since 3.0.0 * * @access public * @param mixed $output Passed by reference. Used to append additional content. * @param mixed $item Menu item data object. * @param int $depth (default: 0) Depth of menu item. Used for padding. * @param array $args (default: array()) Arguments. * @param int $id (default: 0) Menu item ID. * @return void */ public function start_el( &$output, $item, $depth = 0, $args = array(), $id = 0 ) { $indent = ( $depth ) ? str_repeat( "\t", $depth ) : ''; $value = ''; $class_names = $value; $classes = empty( $item->classes ) ? array() : (array) $item->classes; // Loop through the array and pick out any special classes that need // to be added to an element other than the main
• . $extra_link_classes = array(); $icon_class_string = ''; foreach ( $classes as $key => $class ) { // test if this is a disabled link. if ( 'disabled' === $class ) { $extra_link_classes[] = 'disabled'; 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 ); $dropdown_icon = $depth_active = ''; if ( $args->has_children ) { if ( $depth > 0 ) { $depth_active .= ' menu-xs-tri-xs'; } $class_names .= ' dropdown dropdown-arrow-down'; $dropdown_icon .= ''; } if ( in_array( 'active 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'; $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'] = ''; } } // 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 ); // if the modification is a disabled class... if ( 'disabled' === $link_class ) { // then # the link so it doesn't point anywhere. $atts['href'] = '#'; } } } } $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; $item_output .= ''; // initiate empty icon var then if we have a string containing icon classes... $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; $item_output .= $dropdown_icon.''; $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( 'manage_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']; extract( $args ); $fb_output = null; if ( $container ) { $fb_output = '<' . $container; if ( $container_id ) $fb_output .= ' id="' . $container_id . '"'; if ( $container_class ) $fb_output .= ' class="' . $container_class . '"'; $fb_output .= '>'; } $fb_output .= '' . esc_html( 'Add a menu' ) . ''; $fb_output .= '

'; if ( $container ) $fb_output .= ''; echo $fb_output; } } } } // End if().