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<?php
namespace Drupal\file\Controller;
use Drupal\Core\StringTranslation\ByteSizeMarkup;
use Drupal\Core\StringTranslation\StringTranslationTrait;
use Symfony\Component\HttpFoundation\JsonResponse;
/**
* Defines a controller to respond to file widget AJAX requests.
*/
class FileWidgetAjaxController {
use StringTranslationTrait;
/**
* Returns the progress status for a file upload process.
*
* @param string $key
* The unique key for this upload process.
*
* @return \Symfony\Component\HttpFoundation\JsonResponse
* A JsonResponse object.
*/
public function progress($key) {
$progress = [
'message' => $this->t('Starting upload...'),
'percentage' => -1,
];
if (extension_loaded('uploadprogress')) {
$status = uploadprogress_get_info($key);
if (isset($status['bytes_uploaded']) && !empty($status['bytes_total'])) {
$progress['message'] = $this->t('Uploading... (@current of @total)', [
'@current' => ByteSizeMarkup::create($status['bytes_uploaded']),
'@total' => ByteSizeMarkup::create($status['bytes_total']),
]);
$progress['percentage'] = round(100 * $status['bytes_uploaded'] / $status['bytes_total']);
}
}
return new JsonResponse($progress);
}
}
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