evolution of UI worker

"L. David Baron" <[email protected]> Sat, 29 Aug 2015 12:28:49 +0200

Newsgroups	gmane.comp.mozilla.devel.layout
Message-ID	<[email protected]>

The UI worker proposal in the houdini TF has evolved into something
else:
https://docs.google.com/document/d/1xhuwlwdoqox3Fo3e4zFltgSGnbtMb-ptTYNx1loqPXU/edit#heading=h.f6va9m4yz8xn
(which currently has a name that nobody likes).  But they're moving
towards a model where there's a compositor callback that can
manipulate transform, opacity, and scroll position for a set of
elements on the compositor thread, with those changes sent both
onward and back to the main thread.  It can be set up to be called
when certain things change, and to return true to say it should be
called back unconditionally for the next frame whether or not they
change.

I'm not sure how clear the document itself is; I got a bit more
context in the meeting; minutes at:
http://logs.csswg.org/irc.w3.org/houdini/2015-08-29/#e589556

Feedback is probably best sent to the
https://lists.w3.org/Archives/Public/public-houdini/ mailing list.

-David

-- 
𝄞   L. David Baron                         http://dbaron.org/   𝄂
𝄢   Mozilla                          https://www.mozilla.org/   𝄂
             Before I built a wall I'd ask to know
             What I was walling in or walling out,
             And to whom I was like to give offense.
               - Robert Frost, Mending Wall (1914)

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