Ticket #40359: page_menu_link_attributes.diff

wp-includes/class-walker-page.php

@@ -160 +160 @@
                 $args['link_before'] = empty( $args['link_before'] ) ? '' : $args['link_before'];
                 $args['link_after'] = empty( $args['link_after'] ) ? '' : $args['link_after'];
 
+                $atts = array();
+                $atts['href'] = get_permalink( $page->ID );
+
+                /**
+                 * Filters the HTML attributes applied to a menu item's anchor element.
+                 *
+                 * @since 4.x.x
+                 *
+                 * @param array $atts {
+                 *     The HTML attributes applied to the menu item's `<a>` element, empty strings are ignored.
+                 *
+                 *     @type string $href   The href attribute.
+                 * }
+                 * @param WP_Post $page         Page data object.
+                 * @param int     $depth        Depth of page, used for padding.
+                 * @param array   $args         An array of arguments.
+                 * @param int     $current_page ID of the current page.
+                 */
+                $atts = apply_filters( 'page_menu_link_attributes', $atts, $page, $depth, $args, $current_page );
+
+                $attributes = '';
+                foreach ( $atts as $attr => $value ) {
+                        if ( ! empty( $value ) ) {
+                                $value = esc_attr( $value );
+                                $attributes .= ' ' . $attr . '="' . $value . '"';
+                        }
+                }
+
                 $output .= $indent . sprintf(
-                        '<li class="%s"><a href="%s">%s%s%s</a>',
+                        '<li class="%s"><a%s>%s%s%s</a>',
                         $css_classes,
-                        get_permalink( $page->ID ),
+                        $attributes,
                         $args['link_before'],
                         /** This filter is documented in wp-includes/post-template.php */
                         apply_filters( 'the_title', $page->post_title, $page->ID ),