tag * * @author Juan Manuel Vergés Solanas * @package Vhs * @subpackage ViewHelpers\Media */ class GravatarViewHelper extends AbstractTagBasedViewHelper { /** * Base url * * @var string */ const GRAVATAR_BASEURL = 'http://www.gravatar.com/avatar/'; /** * Base secure url * * @var string */ const GRAVATAR_SECURE_BASEURL = 'https://secure.gravatar.com/avatar/'; /** * @var string */ protected $tagName = 'img'; /** * Initialize arguments. * Size argument has no default value to prevent the creation of an unnecessary URI parameter. * * @return void * @api */ public function initializeArguments() { parent::initializeArguments(); $this->registerUniversalTagAttributes(); $this->registerArgument('email', 'string', 'Email address', TRUE); $this->registerArgument('size', 'integer', 'Size in pixels, defaults to 80px [ 1 - 2048 ]', FALSE); $this->registerArgument('imageSet', 'string', 'Default image set to use. Possible values [ 404 | mm | identicon | monsterid | wavatar ] ', FALSE); $this->registerArgument('maximumRating', 'string', 'Maximum rating (inclusive) [ g | pg | r | x ]', FALSE); $this->registerArgument('secure', 'boolean', 'If it is FALSE will return the un secure Gravatar domain (www.gravatar.com)', FALSE, TRUE); } /** * Render method * * @return string */ public function render() { $email = $this->arguments['email']; $size = $this->checkArgument('size'); $imageSet = $this->checkArgument('imageSet'); $maximumRating = $this->checkArgument('maximumRating'); $secure = (boolean) $this->arguments['secure']; $url = (TRUE === $secure ? self::GRAVATAR_SECURE_BASEURL : self::GRAVATAR_BASEURL); $url .= md5(strtolower(trim($email))); $query = http_build_query(array('s' => $size, 'd' => $imageSet, 'r' => $maximumRating)); $url .= (FALSE === empty($query) ? '?' . $query : ''); $this->tag->addAttribute('src', $url); $this->tag->forceClosingTag(TRUE); return $this->tag->render(); } /** * Check if an argument is passed * * @param $argument * * @return mixed */ private function checkArgument($argument) { return TRUE === isset($this->arguments[$argument]) ? $this->arguments[$argument] : NULL; } }