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[whatwg] What is the purpose of timeupdate?

From: Eric Carlson <eric.carlson@apple.com>
Date: Fri, 06 Nov 2009 09:20:10 -0800
Message-ID: <4745090F-6D40-49EA-919C-AB98001E150C@apple.com>

On Nov 6, 2009, at 1:44 AM, Philip J?genstedt wrote:

> We've considered firing it for each frame, but there is one problem.  
> If people expect that it fires once per frame they will probably  
> write scripts which do frame-based animations by moving things n  
> pixels per frame or similar. Some animations are just easier to do  
> this way, so there's no reason to think that people won't do it.  
> This will break horribly if a browser is ever forced to drop a  
> frame, which is going to happen on slower machines. In balance this  
> may or may not be a risk worth taking.
>
   I share Philip's concern.

eric
Received on Friday, 6 November 2009 09:20:10 UTC

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