/**
  * Constructor
  *
  * @param array $args
  */
 public function __construct($args = array())
 {
     global $post;
     if ($post && !isset($args['query']['post_parent'])) {
         $args['query']['post_parent'] = $post->ID;
     }
     parent::__construct($args);
     add_filter('page_row_actions', function ($actions, $post) {
         return array();
     }, 10, 2);
 }