/**
* The given $value is valid if it is an \TYPO3\Media\Domain\Model\ImageInterface of the
* configured type (one of the image/* IANA media subtypes)
*
* Note: a value of NULL or empty string ('') is considered valid
*
* @param ImageInterface $image The image that should be validated
* @return void
* @api
*/
protected function isValid($image)
{
$this->validateOptions();
if (!$image instanceof Image) {
$this->addError('The given value was not an Image instance.', 1327947256);
return;
}
$allowedImageTypes = $this->options['allowedTypes'];
array_walk($allowedImageTypes, function (&$value) {
$value = 'image/' . $value;
});
if (!in_array($image->getMediaType(), $allowedImageTypes)) {
$this->addError('The media type "%s" is not allowed for this image.', 1327947647, array($image->getMediaType()));
}
}
