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

From: Jim Ley <jim@jibbering.com>
Date: Wed, 1 Dec 2004 16:30:10 -0000
To: www-svg@w3.org
Message-ID: <cokrij$fie$1@sea.gmane.org>


"Jon Ferraiolo" <jon.ferraiolo@adobe.com> wrote in message 
news:6.1.1.1.2.20041201063907.0467cee8@mailsj-v1.corp.adobe.com...
> "Any scripting logic associated with a given <script> element is executed 
> at most once. Script execution happens just after the "load" event occurs 
> for the given <script> element. (Exception: if an ancestor has 
> externalResourcesRequired=true, then script execution happens on the 
> "load" event for that ancestor.) Removing, inserting or altering script 
> elements once the document has been loaded has no effect."

No, I don't like this either, the exception I think is wrong, and is not 
consistent with any other mark-up language with scripting.   An inline 
script is not an external resource so it should always be executed as load. 
The one exception to executed immediately is when an 
externalResourcesRequired="false" exists on.  This should be executed 
whenever, dependant on the user agent but obviously the load event of an 
ancestor can only fire once it's loaded.

Something like:

Any scripting logic associated with a given <script> element is executed  at 
most once. Script execution happens just after the "load" event occurs for 
the given <script> element. (Exception: if an ancestor has 
externalResourcesRequired="false" then the user agent can delay execution of 
the script and continue parsing/rendering of the elements) Removing, 
inserting or altering script elements once the document has been loaded has 
no effect.

Is what I believe would be appropriate. Basically it's using 
externalResourcesRequired like the defer attribute of HTML: <URL: 
http://www.w3.org/TR/REC-html40/interact/scripts.html#adef-defer >

Cheers,

Jim. 
Received on Wednesday, 1 December 2004 16:30:20 GMT

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