/**
* @return string loads up all assets needed for magnific
*/
private function loadMagnificAssets()
{
$content = '';
if (!ShortCode::$echoedMagnificAssets) {
$css = new CSS($this->lifeCycle, "magnific-popup");
$content = $css->export();
$js = new JavaScript($this->lifeCycle, "jquery.magnific-popup.min");
$content .= $js->export();
ShortCode::$echoedMagnificAssets = true;
}
return $content;
}