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Re: [whatwg] Modify the Page Visibility spec to let UA's take into account whether iframes are visible on the screen

From: Roger Hågensen <rh_whatwg@skuldwyrm.no>
Date: Tue, 31 Mar 2015 15:50:50 +0200
Message-ID: <551AA63A.3070509@skuldwyrm.no>
To: whatwg@lists.whatwg.org
On 2015-03-31 10:16, duanyao wrote:
> "autopause" looks promising, but I want to ask for more: also add an
> "autounload" attribute to allow UAs to unload specific iframes when
> they are invisible.

This is also a good idea.

I also realized that maybe <video> and <audio> can benefit from a 
autopause attribute, so that when the user tabs away or minimizes the 
browser window the video or audio automatically pause.
Currently this is done using javascript and Page Visibility, but with a 
autopause this would make a plain video or audio tag to do the same, but 
without javascript.

It is also possible that autounload may be of use there as well, for 
live streams for example and when tabbing back the player have been 
reset to it starting state.
Although in this case autopause and autounload would be mutually 
exclusive, if both are present (by mistake?) I think autopause should 
have priority as it's less destructive (to the user) than autounload.

Roger Hågensen, Freelancer, http://skuldwyrm.no/
Received on Tuesday, 31 March 2015 13:51:21 UTC

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