Changeset 40537

Timestamp:

04/23/2017 07:15:47 AM (8 years ago)

Author:

peterwilsoncc

Message:

Menus: Add filter to sub-menu class in nav menus.

Add new filter nav_menu_submenu_css_class to the Walker_Nav_Menu::start_el() method, allowing themers to modify the sub menu classes output by wp_nav_menu().

Props: csloisel, darthaud, raisonon.
Fixes: #36163.

File:

• trunk/src/wp-includes/class-walker-nav-menu.php (modified) (1 diff)

trunk/src/wp-includes/class-walker-nav-menu.php

@@ -59 +59 @@
         }
         $indent = str_repeat( $t, $depth );
-        $output .= "{$n}{$indent}<ul class=\"sub-menu\">{$n}";
+
+        /**
+         * Filters the CSS class(es) applied to a menu list element.
+         *
+         * @since 4.8.0
+         *
+         * @param array    $classes The CSS classes that are applied to the menu `<ul>` element.
+         * @param stdClass $args    An object of `wp_nav_menu()` arguments.
+         * @param int      $depth   Depth of menu item. Used for padding.
+         */
+
+        $classes = array( 'sub-menu' );
+        $classes = apply_filters( 'nav_menu_submenu_css_class', $classes, $args, $depth );
+        $class_names = join( ' ', $classes );
+
+        $output .= "{$n}{$indent}<ul class='" . esc_attr( $class_names ) . "'>{$n}";
     }