/**
* @inheritDoc IElementType::getSource()
*
* @param string $key
* @param string|null $context
*
* @return array|null
*/
public function getSource($key, $context = null)
{
if (preg_match('/folder:(\\d+)(:single)?/', $key, $matches)) {
$folder = craft()->assets->getFolderById($matches[1]);
if ($folder) {
return $this->_assembleSourceInfoForFolder($folder, empty($matches[2]));
}
}
return parent::getSource($key, $context);
}
