code: public function showFile($row, $href, $label, $title, $icon, $attributes)
  	{
  		if (Contao\Input::get('popup'))
  		{
  			return '';
  		}
  		else
  		{
  			return '<a href="contao/popup.php?src=' . base64_encode($row['id']) . '" title="'.Contao\StringUtil::specialchars($title).'"'.$attributes.' onclick="Backend.openModalIframe({\'title\':\''.str_replace("'", "\\'", Contao\StringUtil::specialchars($row['fileNameEncoded'])).'\',\'url\':this.href});return false">'.Contao\Image::getHtml($icon, $label).'</a> ';
  		}
  	}
docs: Return the show file button
  
  @param array  $row
  @param string $href
  @param string $label
  @param string $title
  @param string $icon
  @param string $attributes
  
  @return string