public function _end()
{
$result = "";
if (\Yii::$app->cmsToolbar->editWidgets == Cms::BOOL_Y && \Yii::$app->cmsToolbar->enabled) {
$id = 'sx-infoblock-' . $this->id;
$this->view->registerJs(<<<JS
new sx.classes.toolbar.EditViewBlock({'id' : '{$id}'});
JS
);
$callableData = $this->callableData;
$callableDataInput = Html::textarea('callableData', base64_encode(serialize($callableData)), ['id' => $this->callableId, 'style' => 'display: none;']);
$result = $callableDataInput;
$result .= Html::endTag('div');
}
return $result;
}