[jdev] Re: Proper use of <composing/>

Mon Aug 29 01:46:46 CDT 2005

Mark Derricutt <mark at talios.com> writes:

> Hey all, just getting back into some XMPP dev and was wondering about 
> the <composing/> element inside a message.
>
> I added some code to ignoring messages there were being "composed" on 
> the assumption that it's not the final message, and that I'd be 
> expecting a copy without a <composing/> element once the user has sent 
> the final message.
>
> However, the more I look at this, the more I see clients sending only 
> one final message with the entire message content AND the <composing/> 
> element.
>
> <message to="talios at gmail.com/mobile" 
> from="dantekgeek at gmail.com/AdiumEC5BBF13" type="chat"><body>and now I 
> see you on IRC</body><x xmlns="jabber:x:event"><composing/></x><html 
> xmlns="http://jabber.org/protocol/xhtml-im"></html></message>
>
>
> Does anyone have a pointer for a JEP for this composition message?  I 
> can't seem to spot which its in.  I'm sure my assumptions are wrong 
> (which is more logical than the alternative that everyone else has it 
> wrong)....

The JEP is JEP-0022.  You can read all the details there, but
basically there are two kinds of <x/> tags - those that request event
notifications, and those that raise them.  If the <x/> tag has an
<id/> tag, it raises an event; if not, it requests events.  Thus, the
XML excerpt above only means that the remote client asks you to send
<composing/> events.

Magnus
-- 
JID: legoscia at jabber.cd.chalmers.se