Ticket #16738: 16738.3.diff

wp-includes/nav-menu-template.php

@@ -80 +80 @@
 
                 $output .= $indent . '<li' . $id . $value . $class_names .'>';
 
-                $attributes  = ! empty( $item->attr_title ) ? ' title="'  . esc_attr( $item->attr_title ) .'"' : '';
-                $attributes .= ! empty( $item->target )     ? ' target="' . esc_attr( $item->target     ) .'"' : '';
-                $attributes .= ! empty( $item->xfn )        ? ' rel="'    . esc_attr( $item->xfn        ) .'"' : '';
-                $attributes .= ! empty( $item->url )        ? ' href="'   . esc_attr( $item->url        ) .'"' : '';
+                $atts = array();
+                $atts['title']  = ! empty( $item->attr_title ) ? $item->attr_title     : '';
+                $atts['target'] = ! empty( $item->target )     ? $item->target         : '';
+                $atts['rel']    = ! empty( $item->xfn )        ? $item->xfn            : '';
+                $atts['href']   = ! empty( $item->url )        ? esc_url( $item->url ) : '';
 
+                $atts = apply_filters( 'nav_menu_link_attributes', $atts, $item, $args );
+
+                $attributes = '';
+                foreach ( $atts as $attr => $value ) {
+                        if ( ! empty( $value ) )
+                                $attributes .= ' ' . $attr . '="' . esc_attr( $value ) . '"';
+                }
+
                 $item_output = $args->before;
                 $item_output .= '<a'. $attributes .'>';
                 $item_output .= $args->link_before . apply_filters( 'the_title', $item->title, $item->ID ) . $args->link_after;