Re: [Xsltforms-support] Fwd: XForms and Web sockets

[Tim T. <tim...@gm...>]

Thank you for considering this, Alain--it would be a powerful feature to
add to XSLTForms!

I remember that Mark Lawson did a nice demo, adding a small amount of
custom JavaScript, to enable push notifications in XSLTForms using MQTT:

Code: https://github.com/Tingenek/xml-amsterdam-2015
Blog: https://tingenek.wordpress.com/category/mqtt/


--
Tim A. Thompson
Discovery Metadata Librarian
Yale University Library

On Thu, Aug 1, 2019 at 12:21 PM Alain Couthures <
ala...@ag...> wrote:

> Hello,
>
> Web sockets support in XSLTForms could be interesting, don't you think?
>
> It could probably be implemented at instance level, maybe with a specific
> scheme, such as "ws://".
>
> Thank you for sharing links and ideas!
>
> --Alain
>
>
> -------- Message transféré --------
> Sujet : XForms and Web sockets
> Date de renvoi : Thu, 01 Aug 2019 15:42:24 +0000
> De (renvoi) : pub...@w3...
> Date : Thu, 1 Aug 2019 11:41:52 -0400
> De : C. M. Sperberg-McQueen <cm...@bl...>
> <cm...@bl...>
> Pour : XForms <pub...@w3...> <pub...@w3...>
> Copie à : C. M. Sperberg-McQueen <cm...@bl...>
> <cm...@bl...>
>
> At the Balisage conference yesterday, there was an interesting
> paper [1] by Zahra Al-Awadai, Anne Brüggemann-Klein, Christina Grubmüller,
> and Philipp Ulrich of the TU Munich about using the XML technology stack to
> create graphical user interfaces;
> among other things, they discussed contexts which require the
> server to push information to the client in a way that does not
> jibe easily with the statelessness of HTTP.
>
> [1]
> https://www.balisage.net/Proceedings/vol23/html/Bruggemann-Klein01/BalisageVol23-Bruggemann-Klein01.html
>
> Philipp Ulrich reported in particular on work towards encapsulating
> the web sockets functionality of current browsers into an XML
> element which provides a declarative packaging for the web sockets
> the team need for their server-push functionality.
>
> Afterwards (and again in discussion this morning), John Boyer
> and the authors and I got interested in whether and how it would
> be possible to integrate this kind of functionality into XForms.
> (The current work is independent of earlier work at TUM which
> used XForms, and the web-socket element is not currently
> integrated into any XForms environment.)
>
> Much of the existing machinery of XForms is relevant here and
> could be reused.
> The web socket could of course raise an XForms event when
> it receives a message from the server; since the message may be
> XML, I might want it to update or be appended to an instance
> in my model (which seems to make the web socket behave a bit
> like a submission which is triggered not by a user action but by an event
> of some other kind.
>
> I hope that the WG (and implementors!) will be interested and will take
> some time to consider whether web sockets could be integrated into the
> spec.
>
> ********************************************
> C. M. Sperberg-McQueen
> Black Mesa Technologies LLC
> cm...@bl...
> http://www.blackmesatech.com
> ********************************************
>
>
>
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