Changeset 27386 for trunk/src/wp-includes/nav-menu-template.php

Timestamp:

03/03/2014 08:42:21 PM (11 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 );