protected function getPromptText()
    {
        if ($this->prompt === null) {
            $isMulti = ends_with($this->getDisplayMode(), 'multi');
            $this->prompt = $isMulti
                ? 'backend::lang.fileupload.upload_file'
                : 'backend::lang.fileupload.default_prompt';
        }

        return str_replace('%s', '<i class="icon-upload"></i>', e(trans($this->prompt)));
    }