/**
* Check if the media rule should be included
*
* @param \Crossjoin\Css\Format\Rule\AtMedia\MediaQuery $media_query
* @return bool
*/
protected function isAllowedMediaRule(MediaQuery $media_query)
{
$type = $media_query->getType();
$condition = count($media_query->getConditions());
return ($type === MediaQuery::TYPE_ALL || $type === MediaQuery::TYPE_SCREEN) && $condition === 0;
}
/**
* Extracts the type from the query part of the media rule and returns a MediaQuery instance for it.
*
* @param $queryString
* @return MediaQuery|null
*/
protected function getQueryInstanceFromQueryString($queryString)
{
if (preg_match('/^[ \\r\\n\\t\\f]*(?:(only[ \\r\\n\\t\\f]+)|(not[ \\r\\n\\t\\f]+))?([^ \\r\\n\\t\\f]*)[ \\r\\n\\t\\f]*(?:(?:and)?[ \\r\\n\\t\\f]*)*$/iD', $queryString, $matches)) {
$type = $matches[3] === "" ? MediaQuery::TYPE_ALL : $matches[3];
$query = new MediaQuery($type);
if (!empty($matches[1])) {
$query->setIsOnly(true);
}
if (!empty($matches[2])) {
$query->setIsNot(true);
}
return $query;
}
return null;
}
