W3C home > Mailing lists > Public > www-svg@w3.org > December 2004

Re: LC Comment - Script & Progressive Rendering / Multiple Pages

From: Jim Ley <jim@jibbering.com>
Date: Wed, 1 Dec 2004 01:33:12 -0000
To: www-svg@w3.org
Message-ID: <coj70p$5b5$1@sea.gmane.org>


"Andrew Sledd" <Andrew.Sledd@zoomon.com> wrote in message 
news:586AE9F507AF5E4AA45364333D9E2FA201032706@sesthsrv02.zoomon.local...

>Are we to infer that this means the whole document must be loaded
>before the script is executed? Thus usefulness of combining script
>and progressive rendering and/or multiple pages will be limited.

This isn't even the current behaviour, nor the behaviour of any mark-up 
language, script is executed when the script element is parsed, I think it's 
clear this is not the case, but obviously not.

>We propose that script elements when in a time container with
> timelineBegin="onStart" should be interpreted/executed upon
>load of the script element.

No, all script elements should be executed immediately as now. (external 
scripts with externalResourcesRequired false being the one exception, 
analgous to the defer attribute in HTML)  Certainly no change to the 
existing behaviour should be considered, and changing from the behaviour of 
all other markup languages and scripts should be very much a last resort.

>  <svg timelineBegin="onStart">
>    <script> document.getElementById("foo").setTrait("visibility", 
> "visible");</script>
>    <rect id="foo" visibility="hidden">
>  </svg>
>
>Would not render the rectangle, while

This should result in a script error.

Jim. 
Received on Wednesday, 1 December 2004 01:33:21 GMT

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