wp-bootstrap / wp-bootstrap-navwalker

class-wp-bootstrap-navwalker.php

Spacing +129 added lines, -129 removed lines

@@ -18,7 +18,7 @@ 
  */
 
 // Check if Class Exists.
-if ( class_exists( 'WP_Bootstrap_Navwalker' ) ) {
+if (class_exists('WP_Bootstrap_Navwalker')) {
 	return;
 }
 
@@ -48,8 +48,8 @@ 
 	 * @since 4.2.0
 	 */
 	public function __construct() {
-		if ( ! has_filter( 'wp_nav_menu_args', array( $this, 'add_schema_to_navbar_ul' ) ) ) {
-			add_filter( 'wp_nav_menu_args', array( $this, 'add_schema_to_navbar_ul' ) );
+		if ( ! has_filter('wp_nav_menu_args', array($this, 'add_schema_to_navbar_ul'))) {
+			add_filter('wp_nav_menu_args', array($this, 'add_schema_to_navbar_ul'));
 		}
 	}
 
@@ -64,18 +64,18 @@ 
 	 * @param int              $depth  Depth of menu item. Used for padding.
 	 * @param WP_Nav_Menu_Args $args   An object of `wp_nav_menu()` arguments.
 	 */
-	public function start_lvl( &$output, $depth = 0, $args = null ) {
-		if ( isset( $args->item_spacing ) && 'discard' === $args->item_spacing ) {
+	public function start_lvl(&$output, $depth = 0, $args = null) {
+		if (isset($args->item_spacing) && 'discard' === $args->item_spacing) {
 			$t = '';
 			$n = '';
 		} else {
 			$t = "\t";
 			$n = "\n";
 		}
-		$indent = str_repeat( $t, $depth );
+		$indent = str_repeat($t, $depth);
 
 		// Default class to add to the start of the list (usually ul tag).
-		$classes = array( 'dropdown-menu' );
+		$classes = array('dropdown-menu');
 
 		/**
 		 * Filters the CSS class(es) applied to a menu list element.
@@ -86,8 +86,8 @@ 
 		 * @param stdClass $args    An object of `wp_nav_menu()` arguments.
 		 * @param int      $depth   Depth of menu item. Used for padding.
 		 */
-		$class_names = join( ' ', apply_filters( 'nav_menu_submenu_css_class', $classes, $args, $depth ) );
-		$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
+		$class_names = join(' ', apply_filters('nav_menu_submenu_css_class', $classes, $args, $depth));
+		$class_names = $class_names ? ' class="' . esc_attr($class_names) . '"' : '';
 
 		/*
 		 * The `.dropdown-menu` container needs to have a labelledby
@@ -98,11 +98,11 @@ 
 		 */
 		$labelledby = '';
 		// Find all links with an id in the output.
-		preg_match_all( '/(<a.*?id=\"|\')(.*?)\"|\'.*?>/im', $output, $matches );
+		preg_match_all('/(<a.*?id=\"|\')(.*?)\"|\'.*?>/im', $output, $matches);
 		// With pointer at end of array check if we got an ID match.
-		if ( end( $matches[2] ) ) {
+		if (end($matches[2])) {
 			// Build a string to use as aria-labelledby.
-			$labelledby = 'aria-labelledby="' . esc_attr( end( $matches[2] ) ) . '"';
+			$labelledby = 'aria-labelledby="' . esc_attr(end($matches[2])) . '"';
 		}
 		$output .= "{$n}{$indent}<ul$class_names $labelledby>{$n}";
 	}
@@ -121,33 +121,33 @@ 
 	 * @param WP_Nav_Menu_Args $args   An object of `wp_nav_menu()` arguments.
 	 * @param int              $id     Current item ID.
 	 */
-	public function start_el( &$output, $item, $depth = 0, $args = null, $id = 0 ) {
-		if ( isset( $args->item_spacing ) && 'discard' === $args->item_spacing ) {
+	public function start_el(&$output, $item, $depth = 0, $args = null, $id = 0) {
+		if (isset($args->item_spacing) && 'discard' === $args->item_spacing) {
 			$t = '';
 			$n = '';
 		} else {
 			$t = "\t";
 			$n = "\n";
 		}
-		$indent = ( $depth ) ? str_repeat( $t, $depth ) : '';
+		$indent = ($depth) ? str_repeat($t, $depth) : '';
 
-		if ( false !== strpos( $args->items_wrap, 'itemscope' ) && false === $this->has_schema ) {
+		if (false !== strpos($args->items_wrap, 'itemscope') && false === $this->has_schema) {
 			$this->has_schema  = true;
 			$args->link_before = '<span itemprop="name">' . $args->link_before;
 			$args->link_after .= '</span>';
 		}
 
-		$classes = empty( $item->classes ) ? array() : (array) $item->classes;
+		$classes = empty($item->classes) ? array() : (array) $item->classes;
 
 		/*
 		 * Updating the CSS classes of a menu item in the WordPress
 		 * Customizer preview results in all classes defined in that
 		 * particular input box to come in as one big class string.
 		 */
-		$split_on_spaces = function ( $class ) {
-			return preg_split( '/\s+/', $class );
+		$split_on_spaces = function($class) {
+			return preg_split('/\s+/', $class);
 		};
-		$classes         = $this->flatten( array_map( $split_on_spaces, $classes ) );
+		$classes         = $this->flatten(array_map($split_on_spaces, $classes));
 
 		/*
 		 * Initialize some holder variables to store specially handled item
@@ -162,26 +162,26 @@ 
 		 * NOTE: linkmod and icon class arrays are passed by reference and
 		 * are maybe modified before being used later in this function.
 		 */
-		$classes = $this->separate_linkmods_and_icons_from_classes( $classes, $linkmod_classes, $icon_classes, $depth );
+		$classes = $this->separate_linkmods_and_icons_from_classes($classes, $linkmod_classes, $icon_classes, $depth);
 
 		// Join any icon classes plucked from $classes into a string.
-		$icon_class_string = join( ' ', $icon_classes );
+		$icon_class_string = join(' ', $icon_classes);
 
 		// Bootstrap version to create the markup for.
-		$bs_version = $this->get_bs_version( $args );
+		$bs_version = $this->get_bs_version($args);
 
 		// Whether the current item is a dropdown.
 		$is_dropdown = false;
-		if ( $this->has_children && 1 !== $args->depth ) {
+		if ($this->has_children && 1 !== $args->depth) {
 			$is_dropdown = true;
-			if ( $depth >= $args->depth - 1 && 0 !== $args->depth ) {
+			if ($depth >= $args->depth - 1 && 0 !== $args->depth) {
 				$is_dropdown = false;
 			}
 		}
 
 		// Whether the current item is a dropdown item.
 		$is_dropdown_item = false;
-		if ( ! ( $this->has_children && 0 === $depth ) && $depth > 0 ) {
+		if ( ! ($this->has_children && 0 === $depth) && $depth > 0) {
 			$is_dropdown_item = true;
 		}
 
@@ -190,8 +190,8 @@ 
 		 * an active item.
 		 */
 		$is_active = false;
-		if ( $item->current || $item->current_item_ancestor ) {
-			if ( ! ( $item->current_item_ancestor && 1 === $args->depth ) ) {
+		if ($item->current || $item->current_item_ancestor) {
+			if ( ! ($item->current_item_ancestor && 1 === $args->depth)) {
 				$is_active = true;
 			}
 		}
@@ -207,13 +207,13 @@ 
 		 *
 		 * @var WP_Nav_Menu_Args
 		 */
-		$args = apply_filters( 'nav_menu_item_args', $args, $item, $depth );
+		$args = apply_filters('nav_menu_item_args', $args, $item, $depth);
 
-		if ( $is_dropdown ) {
+		if ($is_dropdown) {
 			$classes[] = 'dropdown';
 		}
 
-		if ( $is_active && ! $is_dropdown_item && 5 !== $bs_version ) {
+		if ($is_active && ! $is_dropdown_item && 5 !== $bs_version) {
 			// For dropdown items the .active class is set on the a tag.
 			$classes[] = 'active';
 		}
@@ -223,11 +223,11 @@ 
 		$classes[] = 'nav-item';
 
 		// Allow filtering the classes.
-		$classes = apply_filters( 'nav_menu_css_class', array_filter( $classes ), $item, $args, $depth );
+		$classes = apply_filters('nav_menu_css_class', array_filter($classes), $item, $args, $depth);
 
 		// Form a string of classes in format: class="class_names".
-		$class_names = join( ' ', $classes );
-		$class_names = $class_names ? ' class="' . esc_attr( $class_names ) . '"' : '';
+		$class_names = join(' ', $classes);
+		$class_names = $class_names ? ' class="' . esc_attr($class_names) . '"' : '';
 
 		/**
 		 * Filters the ID applied to a menu item's list item element.
@@ -240,44 +240,44 @@ 
 		 * @param WP_Nav_Menu_Args $args    An object of `wp_nav_menu()` arguments.
 		 * @param int              $depth   Depth of menu item. Used for padding.
 		 */
-		$id = apply_filters( 'nav_menu_item_id', 'menu-item-' . $item->ID, $item, $args, $depth );
-		$id = $id ? ' id="' . esc_attr( $id ) . '"' : '';
+		$id = apply_filters('nav_menu_item_id', 'menu-item-' . $item->ID, $item, $args, $depth);
+		$id = $id ? ' id="' . esc_attr($id) . '"' : '';
 
 		$output .= $indent . '<li ' . $id . $class_names . '>';
 
 		// Initialize array for holding the $atts for the link item.
 		$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 ) ) {
+		$atts['title']  = ! empty($item->attr_title) ? $item->attr_title : '';
+		$atts['target'] = ! empty($item->target) ? $item->target : '';
+		if ('_blank' === $item->target && empty($item->xfn)) {
 			$atts['rel'] = 'noopener noreferrer';
 		} else {
-			$atts['rel'] = ! empty( $item->xfn ) ? $item->xfn : '';
+			$atts['rel'] = ! empty($item->xfn) ? $item->xfn : '';
 		}
 
 		// If the item has_children add atts to <a>.
-		if ( $is_dropdown ) {
+		if ($is_dropdown) {
 			$infix = '';
-			if ( 5 === $this->get_bs_version( $args ) ) {
+			if (5 === $this->get_bs_version($args)) {
 				$infix = '-bs';
 			}
 
 			$atts['href']                = '#';
-			$atts[ "data$infix-toggle" ] = 'dropdown';
+			$atts["data$infix-toggle"] = 'dropdown';
 			$atts['aria-expanded']       = 'false';
 			$atts['class']               = 'dropdown-toggle nav-link';
 			$atts['id']                  = 'menu-item-dropdown-' . $item->ID;
 
-			$atts['class'] .= ( $is_active && 5 === $bs_version ) ? ' active' : '';
+			$atts['class'] .= ($is_active && 5 === $bs_version) ? ' active' : '';
 		} else {
-			if ( true === $this->has_schema ) {
+			if (true === $this->has_schema) {
 				$atts['itemprop'] = 'url';
 			}
 
-			$atts['href'] = ! empty( $item->url ) ? $item->url : '#';
+			$atts['href'] = ! empty($item->url) ? $item->url : '#';
 
 			// For items in dropdowns use .dropdown-item instead of .nav-link.
-			if ( $is_dropdown_item ) {
+			if ($is_dropdown_item) {
 				$atts['class']  = 'dropdown-item';
 				$atts['class'] .= $is_active ? ' active' : '';
 			} else {
@@ -288,33 +288,33 @@ 
 		$atts['aria-current'] = $item->current ? 'page' : '';
 
 		// Update atts of this item based on any custom linkmod classes.
-		$atts = $this->update_atts_for_linkmod_type( $atts, $linkmod_classes );
+		$atts = $this->update_atts_for_linkmod_type($atts, $linkmod_classes);
 
 		// Allow filtering of the $atts array before using it.
-		$atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args, $depth );
+		$atts = apply_filters('nav_menu_link_attributes', $atts, $item, $args, $depth);
 
 		// Build a string of html containing all the atts for the item.
 		$attributes = '';
-		foreach ( $atts as $attr => $value ) {
-			if ( ! empty( $value ) ) {
-				$value       = ( 'href' === $attr ) ? esc_url( $value ) : esc_attr( $value );
+		foreach ($atts as $attr => $value) {
+			if ( ! empty($value)) {
+				$value       = ('href' === $attr) ? esc_url($value) : esc_attr($value);
 				$attributes .= ' ' . $attr . '="' . $value . '"';
 			}
 		}
 
 		// Set a typeflag to easily test if this is a linkmod or not.
-		$linkmod_type = $this->get_linkmod_type( $linkmod_classes );
+		$linkmod_type = $this->get_linkmod_type($linkmod_classes);
 
 		// START appending the internal item contents to the output.
-		$item_output = isset( $args->before ) ? $args->before : '';
+		$item_output = isset($args->before) ? $args->before : '';
 
 		/*
 		 * This is the start of the internal nav item. Depending on what
 		 * kind of linkmod we have we may need different wrapper elements.
 		 */
-		if ( '' !== $linkmod_type ) {
+		if ('' !== $linkmod_type) {
 			// Is linkmod, output the required element opener.
-			$item_output .= $this->linkmod_element_open( $linkmod_type, $attributes );
+			$item_output .= $this->linkmod_element_open($linkmod_type, $attributes);
 		} else {
 			// With no link mod type set this must be a standard <a> tag.
 			$item_output .= '<a' . $attributes . '>';
@@ -326,13 +326,13 @@ 
 		 * output inside of the item before the $title (the link text).
 		 */
 		$icon_html = '';
-		if ( ! empty( $icon_class_string ) ) {
+		if ( ! empty($icon_class_string)) {
 			// Append an <i> with the icon classes to what is output before links.
-			$icon_html = '<i class="' . esc_attr( $icon_class_string ) . '" aria-hidden="true"></i> ';
+			$icon_html = '<i class="' . esc_attr($icon_class_string) . '" aria-hidden="true"></i> ';
 		}
 
 		/** This filter is documented in wp-includes/post-template.php */
-		$title = apply_filters( 'the_title', $item->title, $item->ID );
+		$title = apply_filters('the_title', $item->title, $item->ID);
 
 		/**
 		 * Filters a menu item's title.
@@ -344,36 +344,36 @@ 
 		 * @param WP_Nav_Menu_Args $args  An object of `wp_nav_menu()` arguments.
 		 * @param int              $depth Depth of menu item. Used for padding.
 		 */
-		$title = apply_filters( 'nav_menu_item_title', $title, $item, $args, $depth );
+		$title = apply_filters('nav_menu_item_title', $title, $item, $args, $depth);
 
 		// If the .sr-only class was set apply to the nav items text only.
-		if ( in_array( 'sr-only', $linkmod_classes, true ) ) {
-			$title         = $this->wrap_for_screen_reader( $title );
-			$keys_to_unset = array_keys( $linkmod_classes, 'sr-only', true );
-			foreach ( $keys_to_unset as $k ) {
-				unset( $linkmod_classes[ $k ] );
+		if (in_array('sr-only', $linkmod_classes, true)) {
+			$title         = $this->wrap_for_screen_reader($title);
+			$keys_to_unset = array_keys($linkmod_classes, 'sr-only', true);
+			foreach ($keys_to_unset as $k) {
+				unset($linkmod_classes[$k]);
 			}
 		}
 
 		// Put the item contents into $output.
-		$item_output .= isset( $args->link_before ) ? $args->link_before . $icon_html . $title . $args->link_after : '';
+		$item_output .= isset($args->link_before) ? $args->link_before . $icon_html . $title . $args->link_after : '';
 
 		/*
 		 * This is the end of the internal nav item. We need to close the
 		 * correct element depending on the type of link or link mod.
 		 */
-		if ( '' !== $linkmod_type ) {
+		if ('' !== $linkmod_type) {
 			// Is linkmod, output the required closing element.
-			$item_output .= $this->linkmod_element_close( $linkmod_type );
+			$item_output .= $this->linkmod_element_close($linkmod_type);
 		} else {
 			// With no link mod type set this must be a standard <a> tag.
 			$item_output .= '</a>';
 		}
 
-		$item_output .= isset( $args->after ) ? $args->after : '';
+		$item_output .= isset($args->after) ? $args->after : '';
 
 		// END appending the internal item contents to the output.
-		$output .= apply_filters( 'walker_nav_menu_start_el', $item_output, $item, $depth, $args );
+		$output .= apply_filters('walker_nav_menu_start_el', $item_output, $item, $depth, $args);
 	}
 
 	/**
@@ -387,8 +387,8 @@ 
 	 * @param array $args Arguments passed from the `wp_nav_menu()` function.
 	 * @return string|void String when echo is false.
 	 */
-	public static function fallback( $args ) {
-		if ( ! current_user_can( 'edit_theme_options' ) ) {
+	public static function fallback($args) {
+		if ( ! current_user_can('edit_theme_options')) {
 			return;
 		}
 
@@ -397,7 +397,7 @@ 
 
 		// Menu container opening tag.
 		$show_container = false;
-		if ( $args['container'] ) {
+		if ($args['container']) {
 			/**
 			 * Filters the list of HTML tags that are valid for use as menu containers.
 			 *
@@ -406,29 +406,29 @@ 
 			 * @param array $tags The acceptable HTML tags for use as menu containers.
 			 *                    Default is array containing 'div' and 'nav'.
 			 */
-			$allowed_tags = apply_filters( 'wp_nav_menu_container_allowedtags', array( 'div', 'nav' ) );
-			if ( is_string( $args['container'] ) && in_array( $args['container'], $allowed_tags, true ) ) {
+			$allowed_tags = apply_filters('wp_nav_menu_container_allowedtags', array('div', 'nav'));
+			if (is_string($args['container']) && in_array($args['container'], $allowed_tags, true)) {
 				$show_container   = true;
-				$class            = $args['container_class'] ? ' class="menu-fallback-container ' . esc_attr( $args['container_class'] ) . '"' : ' class="menu-fallback-container"';
-				$id               = $args['container_id'] ? ' id="' . esc_attr( $args['container_id'] ) . '"' : '';
+				$class            = $args['container_class'] ? ' class="menu-fallback-container ' . esc_attr($args['container_class']) . '"' : ' class="menu-fallback-container"';
+				$id               = $args['container_id'] ? ' id="' . esc_attr($args['container_id']) . '"' : '';
 				$fallback_output .= '<' . $args['container'] . $id . $class . '>';
 			}
 		}
 
 		// The fallback menu.
-		$class            = $args['menu_class'] ? ' class="menu-fallback-menu ' . esc_attr( $args['menu_class'] ) . '"' : ' class="menu-fallback-menu"';
-		$id               = $args['menu_id'] ? ' id="' . esc_attr( $args['menu_id'] ) . '"' : '';
+		$class            = $args['menu_class'] ? ' class="menu-fallback-menu ' . esc_attr($args['menu_class']) . '"' : ' class="menu-fallback-menu"';
+		$id               = $args['menu_id'] ? ' id="' . esc_attr($args['menu_id']) . '"' : '';
 		$fallback_output .= '<ul' . $id . $class . '>';
-		$fallback_output .= '<li class="nav-item"><a href="' . esc_url( admin_url( 'nav-menus.php' ) ) . '" class="nav-link" title="' . esc_attr__( 'Add a menu', 'wp-bootstrap-navwalker' ) . '">' . esc_html__( 'Add a menu', 'wp-bootstrap-navwalker' ) . '</a></li>';
+		$fallback_output .= '<li class="nav-item"><a href="' . esc_url(admin_url('nav-menus.php')) . '" class="nav-link" title="' . esc_attr__('Add a menu', 'wp-bootstrap-navwalker') . '">' . esc_html__('Add a menu', 'wp-bootstrap-navwalker') . '</a></li>';
 		$fallback_output .= '</ul>';
 
 		// Menu container closing tag.
-		if ( $show_container ) {
+		if ($show_container) {
 			$fallback_output .= '</' . $args['container'] . '>';
 		}
 
 		// If $args has 'echo' key and it's true echo, otherwise return.
-		if ( array_key_exists( 'echo', $args ) && $args['echo'] ) {
+		if (array_key_exists('echo', $args) && $args['echo']) {
 			// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
 			echo $fallback_output;
 		} else {
@@ -444,11 +444,11 @@ 
 	 * @param  array $args The nav instance arguments.
 	 * @return array $args The altered nav instance arguments.
 	 */
-	public function add_schema_to_navbar_ul( $args ) {
-		if ( isset( $args['items_wrap'] ) ) {
+	public function add_schema_to_navbar_ul($args) {
+		if (isset($args['items_wrap'])) {
 			$wrap = $args['items_wrap'];
-			if ( strpos( $wrap, 'SiteNavigationElement' ) === false ) {
-				$args['items_wrap'] = preg_replace( '/(>).*>?\%3\$s/', ' itemscope itemtype="http://www.schema.org/SiteNavigationElement"$0', $wrap );
+			if (strpos($wrap, 'SiteNavigationElement') === false) {
+				$args['items_wrap'] = preg_replace('/(>).*>?\%3\$s/', ' itemscope itemtype="http://www.schema.org/SiteNavigationElement"$0', $wrap);
 			}
 		}
 		return $args;
@@ -471,32 +471,32 @@ 
 	 * @param integer $depth           An integer holding current depth level.
 	 * @return array  $classes A maybe modified array of classnames.
 	 */
-	private function separate_linkmods_and_icons_from_classes( $classes, &$linkmod_classes, &$icon_classes, $depth ) {
+	private function separate_linkmods_and_icons_from_classes($classes, &$linkmod_classes, &$icon_classes, $depth) {
 		// Loop through $classes array to find linkmod or icon classes.
-		foreach ( $classes as $key => $class ) {
+		foreach ($classes as $key => $class) {
 			/*
 			 * If any special classes are found, store the class in it's
 			 * holder array and and unset the item from $classes.
 			 */
-			if ( preg_match( '/^disabled|^sr-only/i', $class ) ) {
+			if (preg_match('/^disabled|^sr-only/i', $class)) {
 				// Test for .disabled or .sr-only classes.
 				$linkmod_classes[] = $class;
-				unset( $classes[ $key ] );
-			} elseif ( preg_match( '/^dropdown-header|^dropdown-divider|^dropdown-item-text/i', $class ) && $depth > 0 ) {
+				unset($classes[$key]);
+			} elseif (preg_match('/^dropdown-header|^dropdown-divider|^dropdown-item-text/i', $class) && $depth > 0) {
 				/*
 				 * Test for .dropdown-header or .dropdown-divider and a
 				 * depth greater than 0 - IE inside a dropdown.
 				 */
 				$linkmod_classes[] = $class;
-				unset( $classes[ $key ] );
-			} elseif ( preg_match( '/^fa-(\S*)?|^fa(s|r|l|b)?(\s?)?$/i', $class ) ) {
+				unset($classes[$key]);
+			} elseif (preg_match('/^fa-(\S*)?|^fa(s|r|l|b)?(\s?)?$/i', $class)) {
 				// Font Awesome.
 				$icon_classes[] = $class;
-				unset( $classes[ $key ] );
-			} elseif ( preg_match( '/^glyphicon-(\S*)?|^glyphicon(\s?)$/i', $class ) ) {
+				unset($classes[$key]);
+			} elseif (preg_match('/^glyphicon-(\S*)?|^glyphicon(\s?)$/i', $class)) {
 				// Glyphicons.
 				$icon_classes[] = $class;
-				unset( $classes[ $key ] );
+				unset($classes[$key]);
 			}
 		}
 
@@ -512,19 +512,19 @@ 
 	 * @param array $linkmod_classes Array of any link modifier classes.
 	 * @return string Empty for default, a linkmod type string otherwise.
 	 */
-	private function get_linkmod_type( $linkmod_classes = array() ) {
+	private function get_linkmod_type($linkmod_classes = array()) {
 		$linkmod_type = '';
 		// Loop through array of linkmod classes to handle their $atts.
-		if ( ! empty( $linkmod_classes ) ) {
-			foreach ( $linkmod_classes as $link_class ) {
-				if ( ! empty( $link_class ) ) {
+		if ( ! empty($linkmod_classes)) {
+			foreach ($linkmod_classes as $link_class) {
+				if ( ! empty($link_class)) {
 
 					// Check for special class types and set a flag for them.
-					if ( 'dropdown-header' === $link_class ) {
+					if ('dropdown-header' === $link_class) {
 						$linkmod_type = 'dropdown-header';
-					} elseif ( 'dropdown-divider' === $link_class ) {
+					} elseif ('dropdown-divider' === $link_class) {
 						$linkmod_type = 'dropdown-divider';
-					} elseif ( 'dropdown-item-text' === $link_class ) {
+					} elseif ('dropdown-item-text' === $link_class) {
 						$linkmod_type = 'dropdown-item-text';
 					}
 				}
@@ -542,26 +542,26 @@ 
 	 * @param array $linkmod_classes An array of classes that modify link or nav item behaviors or displays.
 	 * @return array Maybe updated array of attributes for item.
 	 */
-	private function update_atts_for_linkmod_type( $atts = array(), $linkmod_classes = array() ) {
-		if ( ! empty( $linkmod_classes ) ) {
-			foreach ( $linkmod_classes as $link_class ) {
-				if ( ! empty( $link_class ) ) {
+	private function update_atts_for_linkmod_type($atts = array(), $linkmod_classes = array()) {
+		if ( ! empty($linkmod_classes)) {
+			foreach ($linkmod_classes as $link_class) {
+				if ( ! empty($link_class)) {
 					/*
 					 * Update $atts with a space and the extra classname
 					 * so long as it's not a sr-only class.
 					 */
-					if ( 'sr-only' !== $link_class ) {
-						$atts['class'] .= ' ' . esc_attr( $link_class );
+					if ('sr-only' !== $link_class) {
+						$atts['class'] .= ' ' . esc_attr($link_class);
 					}
 					// Check for special class types we need additional handling for.
-					if ( 'disabled' === $link_class ) {
+					if ('disabled' === $link_class) {
 						// Convert link to '#' and unset open targets.
 						$atts['href'] = '#';
-						unset( $atts['target'] );
-					} elseif ( 'dropdown-header' === $link_class || 'dropdown-divider' === $link_class || 'dropdown-item-text' === $link_class ) {
+						unset($atts['target']);
+					} elseif ('dropdown-header' === $link_class || 'dropdown-divider' === $link_class || 'dropdown-item-text' === $link_class) {
 						// Store a type flag and unset href and target.
-						unset( $atts['href'] );
-						unset( $atts['target'] );
+						unset($atts['href']);
+						unset($atts['target']);
 					}
 				}
 			}
@@ -577,8 +577,8 @@ 
 	 * @param string $text The string of text to be wrapped in a screen reader class.
 	 * @return string The string wrapped in a span with the class.
 	 */
-	private function wrap_for_screen_reader( $text = '' ) {
-		if ( $text ) {
+	private function wrap_for_screen_reader($text = '') {
+		if ($text) {
 			$text = '<span class="sr-only">' . $text . '</span>';
 		}
 		return $text;
@@ -593,17 +593,17 @@ 
 	 * @param string $attributes   A string of attributes to add to the element.
 	 * @return string A string with the opening tag for the element with attribibutes added.
 	 */
-	private function linkmod_element_open( $linkmod_type, $attributes = '' ) {
+	private function linkmod_element_open($linkmod_type, $attributes = '') {
 		$output = '';
-		if ( 'dropdown-item-text' === $linkmod_type ) {
+		if ('dropdown-item-text' === $linkmod_type) {
 			$output .= '<span class="dropdown-item-text"' . $attributes . '>';
-		} elseif ( 'dropdown-header' === $linkmod_type ) {
+		} elseif ('dropdown-header' === $linkmod_type) {
 			/*
 			 * For a header use a span with the .h6 class instead of a real
 			 * header tag so that it doesn't confuse screen readers.
 			 */
 			$output .= '<span class="dropdown-header h6"' . $attributes . '>';
-		} elseif ( 'dropdown-divider' === $linkmod_type ) {
+		} elseif ('dropdown-divider' === $linkmod_type) {
 			// This is a divider.
 			$output .= '<div class="dropdown-divider"' . $attributes . '>';
 		}
@@ -618,15 +618,15 @@ 
 	 * @param string $linkmod_type A string containing a special linkmod type.
 	 * @return string A string with the closing tag for this linkmod type.
 	 */
-	private function linkmod_element_close( $linkmod_type ) {
+	private function linkmod_element_close($linkmod_type) {
 		$output = '';
-		if ( 'dropdown-header' === $linkmod_type || 'dropdown-item-text' === $linkmod_type ) {
+		if ('dropdown-header' === $linkmod_type || 'dropdown-item-text' === $linkmod_type) {
 			/*
 			 * For a header use a span with the .h6 class instead of a real
 			 * header tag so that it doesn't confuse screen readers.
 			 */
 			$output .= '</span>';
-		} elseif ( 'dropdown-divider' === $linkmod_type ) {
+		} elseif ('dropdown-divider' === $linkmod_type) {
 			// This is a divider.
 			$output .= '</div>';
 		}
@@ -639,11 +639,11 @@ 
 	 * @param array $array A multidimensional array.
 	 * @return array A simple array.
 	 */
-	public function flatten( $array ) {
+	public function flatten($array) {
 		$result = array();
-		foreach ( $array as $element ) {
-			if ( is_array( $element ) ) {
-				array_push( $result, ...$this->flatten( $element ) );
+		foreach ($array as $element) {
+			if (is_array($element)) {
+				array_push($result, ...$this->flatten($element));
 			} else {
 				$result[] = $element;
 			}
@@ -657,8 +657,8 @@ 
 	 * @param WP_Nav_Menu_Args $args An object of `wp_nav_menu()` arguments.
 	 * @return int Major Bootstrap version
 	 */
-	private function get_bs_version( $args ) {
-		if ( property_exists( $args, 'bs_version' ) && 5 === (int) $args->bs_version ) {
+	private function get_bs_version($args) {
+		if (property_exists($args, 'bs_version') && 5 === (int) $args->bs_version) {
 			return (int) $args->bs_version;
 		}
 		return $this->bs_version;