src/View/DefaultWidgetBuilder.php
private function getWidgetClass(PropertyInterface $property)
    {
        if (!isset($GLOBALS['TL_FFL'][$property->getWidgetType()])) {
            return null;
        }

        $className = $GLOBALS['TL_FFL'][$property->getWidgetType()];
        if (!class_exists($className)) {
            return null;
        }

        return $className;
    }
private function getWidgetClass(PropertyInterface $property)
    {
        if (!isset($GLOBALS['TL_FFL'][$property->getWidgetType()])) {
            return null;
        }

        $className = $GLOBALS['TL_FFL'][$property->getWidgetType()];
        if (!class_exists($className)) {
            return null;
        }

        return $className;
    }
Try to resolve the class name for the widget.

@param PropertyInterface $property The property to get the widget class name for.

@return string

@SuppressWarnings(PHPMD.Superglobals)
@SuppressWarnings(PHPMD.CamelCaseVariableName)