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Re: [css3-animations] Constructing missing 0%/"from" and 100%/"to" keyframes

From: L. David Baron <dbaron@dbaron.org>
Date: Fri, 23 Sep 2011 12:37:56 -0700
To: Øyvind Stenhaug <oyvinds@opera.com>
Cc: "www-style@w3.org" <www-style@w3.org>
Message-ID: <20110923193756.GA2976@pickering.dbaron.org>
On Friday 2011-09-23 16:29 +0200, Øyvind Stenhaug wrote:
> http://dev.w3.org/csswg/css3-animations/#keyframes
> 
> "If a 0% or "from" keyframe is not specified, then the user agent
> constructs a 0% keyframe using the computed values of the properties
> being animated. If a 100% or "to" keyframe is not specified, then
> the user agent constructs a 100% keyframe using the computed values
> of the properties being animated."
> 
> This doesn't specify at which point the computed values are being
> sampled. I assume it should be the point in time at which the
> animation starts applying (which may be before the animation starts,
> depending on 'animation-delay').

In Gecko it's dynamically updated to any underlying style changes
(so there's no one point), which I think matches the way CSS usually
works.

-David

-- 
𝄞   L. David Baron                         http://dbaron.org/   𝄂
𝄢   Mozilla                           http://www.mozilla.org/   𝄂
Received on Friday, 23 September 2011 19:38:54 GMT

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