Re: [csswg-drafts] [mediaqueries][mediaqueries-4] `scan` feature...is there any actual support/need for this?

This has been there since the last level of the spec, which is already
 a REC. I agree that the likelyhood of running into an interlaced 
display is going down and that the use-case is fairly narrow to start 
with, but I don't think there is anything inherently wrong with this 
MQ. The cost of standardizing seems to have already been paid, and it 
is already implemented 
https://www.w3.org/Style/CSS/Test/MediaQueries/20120229/reports/implement-report.html#parsing-scan

That said, I just realized there is a difference between the level 3 
version of this feature, and the level 4 one: in level 3, this was 
meant only to apply to the TV media type, but in level 4 there is no 
such restriction.

I guess this leaves us with a two main options:
- Tie it back to the tv media type, which is deprecated, so deprecate 
this as well: everybody must parse it, everybody must return false.
- Keep it in as it is specified in level 4: everybody must parse it, 
and must return true to either `progressive` or `interlace`

@tabatkins Do you remember if the difference between the two levels 
was intentional? What's your take on this, should we revert the change
 and make it forever useless, or keep it and impose a small but non 
zero cost on implementors to adjust their behavior to the new spec?

-- 
GitHub Notification of comment by frivoal
Please view or discuss this issue at 
https://github.com/w3c/csswg-drafts/issues/594#issuecomment-253442827 
using your GitHub account

Received on Thursday, 13 October 2016 08:02:56 UTC