protected function getContextVariable($variableName)
    {
        $value = null;

        $view = $this->viewHelperVariableContainer->getView();
        if ($view instanceof FusionAwareViewInterface) {
            $fusionObject = $view->getFusionObject();
            $currentContext = $fusionObject->getRuntime()->getCurrentContext();
            if (isset($currentContext[$variableName])) {
                $value = $currentContext[$variableName];
            }
        }

        return $value;
    }