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Re: [presentation-api] Refine how to do session teardown/disconnect/closing

From: Matt Hammond via GitHub <sysbot+gh@w3.org>
Date: Wed, 13 May 2015 17:45:45 +0000
To: public-secondscreen@w3.org
Message-ID: <issue_comment.created-101756660-1431539144-sysbot+gh@w3.org>
Some underlying protocols may not support terminating/closing the 2nd 
screen content. In DIAL, the ability to "stop" an application is 
optional [1]. Similarly HbbTV (that builds ontop of DIAL) does not 
mandate this functionality.

The behaviour is also not always needed. For example: a user browses a
 catalogue of video on demand on a mobile device and chooses a show. 
They "cast" it to the TV to watch it there and will continue to watch 
it, even if they close the webpage on the mobile device or take some 
other action within that page that moves them onto looking at other 
content on the primary screen.

I would therefore propose that `session.close()` or 
`session.terminate()` can fail silently if the underlying protocol 
does not support this action. Alternatively the requirement to support
 a close/terminate capability could be indicated when checking 
availability or trying to start a session.

[1] DIAL 1.7.1 spec section 4 or 6.4 at 

GitHub Notif of comment by matt-hammond-bbc
Received on Wednesday, 13 May 2015 17:45:46 UTC

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