views_ui_build_form_url

views_ui_build_form_url(FormStateInterface $form_state)

function views_ui_build_form_url(FormStateInterface $form_state) {
  $ajax = !$form_state->get('ajax') ? 'nojs' : 'ajax';
  $name = $form_state->get('view')->id();
  $form_key = $form_state->get('form_key');
  $display_id = $form_state->get('display_id');

  $form_key = str_replace('-', '_', $form_key);
  $route_name = "views_ui.form_{$form_key}";
  $route_parameters = [
    'js' => $ajax,
    'view' => $name,
    'display_id' => $display_id
  ];
  $url = Url::fromRoute($route_name, $route_parameters);
  if ($type = $form_state->get('type')) {
    $url->setRouteParameter('type', $type);
  }
  if ($id = $form_state->get('id')) {
    $url->setRouteParameter('id', $id);
  }
  return $url;
}