/**
* Get user avatar, and creates a image link
*
* Optionally, if it is allowed, used [Gravatar].
*
* Example:
* ~~~
* $post = Post::dcache($id, 'page', $config);
*
* echo HTML::anchor($post->user->url, User::getAvatar($post->user));
* ~~~
*
* @since 1.1.0
*
* @param ORM $user User model
* @param array $attrs Default attributes + type = crop|ratio [Optional]
* @param mixed $protocol Protocol to pass to `URL::base()` [Optional]
* @param boolean $index Include the index page [Optional]
*
* @return string
*
* @uses Config::get
* @uses Gravatar::setSize
* @uses Gravatar::setDefaultImage
* @uses Gravatar::getImage
* @uses URL::site
* @uses Arr::merge
*/
public static function getAvatar(ORM $user, array $attrs = array(), $protocol = NULL, $index = FALSE)
{
// Default user pic
$avatar = 'media/images/avatar-user-400.png';
// Set default attributes
$attrs_default = array('size' => 32, 'type' => 'resize', 'itemprop' => 'image', 'default_image' => URL::site($avatar, TRUE));
// Merge attributes
$attrs = Arr::merge($attrs_default, $attrs);
$use_gravatar = Config::get('site.use_gravatars', FALSE);
if ($use_gravatar) {
$avatar = Gravatar::instance($user->mail)->setSize($attrs['size'])->setDefaultImage($attrs['default_image'])->getImage(array('alt' => $user->nick, 'itemprop' => $attrs['itemprop'], 'width' => $attrs['size'], 'height' => $attrs['size']), $protocol, $index);
} else {
if (!empty($user->picture)) {
$avatar = $user->picture;
}
$avatar = HTML::resize($avatar, array('alt' => $user->nick, 'height' => $attrs['size'], 'width' => $attrs['size'], 'type' => $attrs['type'], 'itemprop' => $attrs['itemprop']), $protocol, $index);
}
return $avatar;
}
