/**
* Sets room (or conversation) subject.
*
* @param Jid $jid Jid to send subject msg.
* @param string $subject New subject.
*
* @internal Plugins should use Room::subject() instead of that.
*/
public function setSubject(Jid $jid, $subject)
{
$msg = new XmlBranch('message');
$msg->addAttribute('from', $this->jid->__toString())->addAttribute('to', $jid->__toString())->addAttribute('type', $jid->isChannel() ? 'groupchat' : 'chat');
$msg->addChild(new XmlBranch('subject'))->setContent($subject);
$this->write($msg->asXml());
}
