/**
* Checks if currently loaded representation is of specified media class. Valid media classes are 'image', 'audio', 'video' and 'document'
*
* @param string The media class to check for
* @return True if representation is of specified class, false if not
*/
public function representationIsOfClass($ps_class)
{
if (!($vs_mimetypes_regex = caGetMimetypesForClass($ps_class, array('returnAsRegex' => true)))) {
return array();
}
return preg_match("!{$vs_mimetypes_regex}!", $this->get('mimetype')) ? true : false;
}
/**
* Returns information for representations of the specified class attached to the current item.
*
* @param string $ps_class The class of representation to return information for. Valid classes are "image", "audio", "video" and "document"
* @param array $pa_options Options for selection of representations to return; same as options for self::getRepresentations()
*
* @return array An array with information about matching representations, in the same format as that returned by self::getRepresentations()
*/
public function representationsOfClass($ps_class, $pa_versions = null, $pa_version_sizes = null, $pa_options = null)
{
if (!($vs_mimetypes_regex = caGetMimetypesForClass($ps_class, array('returnAsRegex' => true)))) {
return array();
}
$va_rep_list = array();
if (is_array($va_reps = $this->getRepresentations($pa_versions, $pa_version_sizes, $pa_options))) {
foreach ($va_reps as $vn_rep_id => $va_rep) {
if (preg_match("!{$vs_mimetypes_regex}!", $va_rep['mimetype'])) {
$va_rep_list[$vn_rep_id] = $va_rep;
}
}
}
return $va_rep_list;
}
