theme_location ) { $svg = twentynineteen_get_social_link_svg( $item->url, 26 ); if ( empty( $svg ) ) { $svg = twentynineteen_get_icon_svg( 'link' ); } $item_output = str_replace( $args->link_after, '' . $svg, $item_output ); } return $item_output; } add_filter( 'walker_nav_menu_start_el', 'twentynineteen_nav_menu_social_icons', 10, 4 ); /** * Add a dropdown icon to top-level menu items. * * @param string $item_output The menu item's starting HTML output. * @param WP_Post $item Menu item data object. * @param int $depth Depth of the menu. Used for padding. * @param stdClass $args An object of wp_nav_menu() arguments. * @return string Nav menu item start element. */ function twentynineteen_add_dropdown_icons( $item_output, $item, $depth, $args ) { // Only add class to 'top level' items on the 'primary' menu. if ( ! isset( $args->theme_location ) || 'menu-1' !== $args->theme_location ) { return $item_output; } if ( in_array( 'mobile-parent-nav-menu-item', $item->classes, true ) && isset( $item->original_id ) ) { // Inject the keyboard_arrow_left SVG inside the parent nav menu item, and let the item link to the parent item. // @todo Only do this for nested submenus? If on a first-level submenu, then really the link could be "#" since the desire is to remove the target entirely. $link = sprintf( '. $item_output = preg_replace( '##i', '', $item_output, 1 // Limit. ); } elseif ( in_array( 'menu-item-has-children', $item->classes, true ) ) { // Add SVG icon to parent items. $icon = twentynineteen_get_icon_svg( 'keyboard_arrow_down', 24 ); $item_output .= sprintf( '', $icon ); } return $item_output; } add_filter( 'walker_nav_menu_start_el', 'twentynineteen_add_dropdown_icons', 10, 4 );