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RE: Splitting background-position in two different attributes

From: Brian Manthos <brianman@microsoft.com>
Date: Mon, 15 Aug 2011 19:21:52 +0000
To: fantasai <fantasai.lists@inkedblade.net>, "www-style@w3.org" <www-style@w3.org>
Message-ID: <9710FCC2E88860489239BE0308AC5D1711FAA8@TK5EX14MBXC264.redmond.corp.microsoft.com>
There are other concerns before you even get to that.

Things like...

div {
	background-image: url(a.png), url(b.png), url(c.png), url(d.png);
	background-position-x: 1px, 2px, 3px;
	background-position-y: 10%, 20%, 30%, 40%, 50%;
	background-repeat: no-repeat, repeat, repeat-y;
}

(a) What should an OM query for background-position return?  (I think empty string because it's not constructible.)
(b) What should the used value for the x dimension of background-position be for the 4th image? (I think 1px, just like its repeat value is no-repeat.)

There are a myriad of cases like these.  We've addressed many of them in IE9 and have work to do (IE10+) on others.  Whether the WG will agree with our assessments and approach will be fodder for many fun discussions, I'm sure.

-Brian

-----Original Message-----
From: www-style-request@w3.org [mailto:www-style-request@w3.org] On Behalf Of fantasai
Sent: Monday, August 15, 2011 12:02 PM
To: www-style@w3.org
Subject: Re: Splitting background-position in two different attributes

On 08/15/2011 10:28 AM, Brian Manthos wrote:
> I think getting the serialization addressed before throwing more into 
> the entanglement that is background is preferred.

Also, I'd like to see a proposal that actually specifies the interaction with the extended background-position syntax that was introduced in L3 and the logical-keyword set that we will presumably introduce in L4.

~fantasai


Received on Monday, 15 August 2011 19:22:22 GMT

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