W3C home > Mailing lists > Public > public-secondscreen@w3.org > November 2014

Allow page to designate itself as presentation session

From: Francois Daoust <fd@w3.org>
Date: Wed, 12 Nov 2014 18:16:15 +0100
Message-ID: <546395DF.9020303@w3.org>
To: "public-secondscreen@w3.org" <public-secondscreen@w3.org>, "public-webscreens@w3.org" <public-webscreens@w3.org>
CC: "Bassbouss, Louay" <louay.bassbouss@fokus.fraunhofer.de>
Hi all,

Louay and I chatted a bit about the following possibility a couple of 
weeks ago and I don't remember having seen it mentioned on the 
mailing-list, so here it goes.

In essence, once we add the possibility to join an existing session or 
resume a connection to a running presentation session through a call to 
"joinSession", it seems natural to add some way for a page to advertise 
itself as a running presentation session, to avoid having to call 
"startSession" altogether.

A typical use case:
"A user starts an application on her Smart TV that displays family 
pictures and videos in the background. While the application runs, her 
child opens the application on his tablet, joins the running 
presentation application on the Smart TV and adds pictures and comments 
to the slideshow."

The Presentation API enables the above scenario... provided the user 
starts the Smart TV application from another device in the first place. 
Said differently, the Presentation API enables more complex scenarios 
(Smart TV + controlling device) to create sessions, which is good, but 
not the more simple one (Smart TV only), which seems a bit awkward.

Or perhaps this could actually already be handled at the UA level: if 
the UA detects code in a Web app that e.g. listens to presentation 
session connections, it could perhaps offer an option on the UA's user 
interface to start the session directly (with a choice that says "and do 
that automatically next time the app starts").

What do you think?

Received on Wednesday, 12 November 2014 17:16:27 UTC

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