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[CSSOM] @namespace at-rule proposal

From: Anne van Kesteren <annevk@opera.com>
Date: Tue, 06 Jun 2006 13:51:01 +0200
To: www-style@w3.org
Message-ID: <op.tap2xju464w2qv@id-c0020.oslo.opera.com>

Even though http://www.w3.org/1999/06/25/WD-css3-namespace-19990625/ is  
still marked as a proposal I think everyone agreed upon as it the way to  
go and there are implementations in Mozilla, Safari and Opera of it.  
However, there is no CSS object model representation of it though because  
DOM Level 2 Style was written at the time of CSS 2.0 I guess. Based on  
limited testing I believe Mozilla uses CSSUnknownRule for it which is  
actually obsoleted  
but I guess they are using it as some kind of catch all for all at rules  
that are not in a standard but are supported anyway.

For @namespace I propose CSSRule is extended with `const unsigned short  
NAMESPACE_RULE = 7;` and a new interface is used for the rule itself:

   interface CSSNamespaceRule : CSSRule {
             attribute DOMString namespace;
    readonly attribute DOMString prefix;

The namespace DOM attribute represents the URI given with url(). The url()  
"function" syntax must not be part of the value etc. The prefix DOM  
attribute either is the prefix given or the empty string.

Not sure about any exceptions that might need to be thrown.

Anne van Kesteren
Received on Tuesday, 6 June 2006 11:51:36 UTC

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