Ticket #39862: Add_tracking_for_total_children.patch

wp-includes/class-wp-walker.php

@@ -47 +47 @@
          */
         public $has_children;
 
+        /**
+         * Total children of current element.
+         *
+         * @since 4.7.2
+         * @var bool
+         */
+        public $total_children;
+
         /**
          * Starts the list before the elements are added.
          *
@@ -142 +150 @@
                         $args[0]['has_children'] = $this->has_children; // Back-compat.
                 }
 
+                $this->total_children = 0;
+                if ( $this->has_children ) {
+                        $this->total_children = count( $children_elements[ $id ] );
+                }
+
                 $cb_args = array_merge( array(&$output, $element, $depth), $args);
                 call_user_func_array(array($this, 'start_el'), $cb_args);
 
@@ -404 +417 @@
         /**
          * Unset all the children for a given top level element.
          *
-         * @since 2.7.0
-         *
          * @param object $e
          * @param array $children_elements
          */