Changeset 27386

Timestamp:

03/03/2014 08:42:21 PM (12 years ago)

Author:

helen

Message:

Add the ability to short-circuit wp_nav_menu() via the pre_wp_nav_menu hook. props kasparsd, DrewAPicture, Rarst. fixes #23627.

File:

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

trunk/src/wp-includes/nav-menu-template.php

@@ -246 +246 @@
         $args = (object) $args;
 
+        /**
+         * Filter whether to short-circuit the wp_nav_menu() output.
+         *
+         * Returning a non-null value to the filter will short-circuit
+         * wp_nav_menu(), echoing that value if $args->echo is true,
+         * returning that value otherwise.
+         *
+         * @since 3.9.0
+         *
+         * @see wp_nav_menu()
+         *
+         * @param string|null $output Nav menu output to short-circuit with. Default null.
+         * @param object      $args   An object containing wp_nav_menu() arguments.
+         */
+        $nav_menu = apply_filters( 'pre_wp_nav_menu', null, $args );
+
+        if ( null !== $nav_menu ) {
+                if ( $args->echo ) {
+                        echo $nav_menu;
+                        return;
+                }
+
+                return $nav_menu;
+        }
+
         // Get the nav menu based on the requested menu
         $menu = wp_get_nav_menu_object( $args->menu );