W3C home > Mailing lists > Public > public-html@w3.org > January to March 2007

Re: Let every element have a src attribute

From: Dao Gottwald <dao@design-noir.de>
Date: Thu, 29 Mar 2007 17:32:12 +0200
Message-ID: <460BDBFC.9090106@design-noir.de>
To: Anne van Kesteren <annevk@opera.com>
CC: public-html@w3.org

In order to avoid having to mess with a bunch of related attributes as 
with "href", I'd allow "src" (or "data"?) and "type" only. I'd see it as 
a <object> shorthand, thus it should behave the same when it comes to 

Note that by "every element", I mean those who can have visible child 
nodes. This way you automatically exclude elements that have a src 
attribute today.

That's all a bit tricky though, as it implies inconsistencies. E.g. <img 
src="foo.png" alt="foo"> would differ from <span 
src="foo.png">foo</span> in some non-obvious ways.


Anne van Kesteren wrote:
> On Wed, 28 Mar 2007 18:29:21 +0200, Dao Gottwald <dao@design-noir.de> 
> wrote:
>> .... which seems very plausible to me. Contrary to letting every 
>> element have a href attribute, it's backwards-compatible by design.
> Not really. <script src> has very different semantics from <img src>, 
> <iframe src> and <embed src> for instance which have different semantics 
> from <video src>, <event-source src> and <source src> (which also all 
> differ from each other). The semantics of an element are in general 
> decided by the element and after that by their attributes. This means 
> that how the attribute functions depends on the element and not the 
> other way around.
> Exactly the same arguments as for href="" apply I would say. For src="" 
> you have can think about how loading would happen for the element. When 
> are the various events dispatched? Does the element delay the load event 
> of the document? Does it start loading the monment it is inserted? Does 
> mutating the src="" attribute affect any API (see <event-source>)? Et 
> cetera.
Received on Thursday, 29 March 2007 15:32:17 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Thursday, 29 March 2007 15:32:17 GMT