public function parents($selector = null)
{
$parents = $this->wrappedQuery->parents();
if ($selector === null) {
return $this->createQuery($parents);
}
$matchingParents = array();
foreach ($parents as $parent) {
if ($this->matcher->matches($parent->get(0), $selector)) {
$matchingParents[] = $parent->get(0);
}
}
return $this->createQuery(qp($matchingParents));
}
private function matchesSelector(DOMNode $node, $selector)
{
$matcher = new CssSelectorMatcher();
return $matcher->matches($node, $selector);
}