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Re: Ambiguities in fill:url() / stroke:url() syntax

From: Dirk Schulze <dschulze@adobe.com>
Date: Mon, 29 Oct 2012 04:50:49 -0700
To: "robert@ocallahan.org" <robert@ocallahan.org>
CC: "Tab Atkins Jr." <jackalmage@gmail.com>, www-svg <www-svg@w3.org>, www-style <www-style@w3.org>
Message-ID: <73DAD65F-4CAA-41AA-9092-915D6D2E28A4@adobe.com>

On Oct 29, 2012, at 12:36 PM, Robert O'Callahan <robert@ocallahan.org> wrote:

> On Mon, Oct 29, 2012 at 11:42 PM, Dirk Schulze <dschulze@adobe.com> wrote:
> Does it mean that we have two different behaviors on <img>, <object> and <iframe> on the one side and CSS Images on the other? That sounds worst.
> 
> No, because <img>, <object> and <iframe> don't use "url()" syntax. They're simply irrelevant to all of this. The problem is only for users of "url()".

With the ideas on whatwg, we might get a common syntax anyway. Who knows? I would not treat them differently.

> 
> > (Although http://preciousforever.github.com/SVG-Stacker/examples/wikipedia/commons/stack/stack-demo-css-hack.html does have some polyfill that uses background:url() in Firefox.) So maybe the compat issue isn't that bad.
> 
> I would like to see a proposal first before we can continue discussing on it further.
> 
> I've made a few proposals here. Here's my current proposal:
> When "url(...)" appears as a CSS value,
> a) if the URI has no fragment identifier, treat it as an image load.
> b) if the URI has a fragment identifier that contains the characters '=', '(' or ')', treat it as an image load.
> c) otherwise, treat it as an external resource reference.

With this proposal, SVG stacks would not be possible, correct? That was what I asked for. And I would be opposed to it. Or we make SVG Stack possible with  '=', '(' or ')' and I would like to see how it looks like.

> 
> And we have not done the research if ::target is the only pseudo element or use case for SVG fragments with influence on the painted result.
> 
> I'm not sure what you mean by this.


::target is used for SVG stacks. Are there other ways? Other ways that can change the painted results like for stacks?

Greetings,
Dirk



> 
> Rob
> -- 
> Jesus called them together and said, “You know that the rulers of the Gentiles lord it over them, and their high officials exercise authority over them. Not so with you. Instead, whoever wants to become great among you must be your servant, and whoever wants to be first must be your slave — just as the Son of Man did not come to be served, but to serve, and to give his life as a ransom for many.” [Matthew 20:25-28]
> 
Received on Monday, 29 October 2012 11:51:23 GMT

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