protected function addDeferredJavaScript(WidgetAssetInterface $widget, Response $response)
{
if ($this->deferAdded) {
return;
}
$javaScript = $this->render->render('widgetjavascript.twig', ['widget' => $widget]);
$snippet = (new Snippet())->setLocation(Target::AFTER_BODY_JS)->setCallback((string) $javaScript);
$this->deferAdded = true;
$this->injector->inject($snippet, Target::AFTER_BODY_JS, $response);
}