- From: Bert Bos <bert@w3.org>
- Date: Thu, 21 Feb 2008 00:16:23 +0100
- To: www-style <www-style@w3.org>
Daniel Glazman wrote: > > Andrew Fedoniouk wrote: >> >> I think it makes sense to add another value to the list-style-type >> enumeration - "tree-line". > > Wow, that's far more than stylistic Andrew... That's clearly > behavioural. But that is only a part of the solution needed for > UL/LI turned into foldable trees. We need a queryable way to specify an > item is folded or not too... Right ? Actually, I think I like it... It's a very easy way to get a tree-like list display. I can do without detailed control over the look of the lines. I want collapsing elements in CSS, too, but it is unrelated to how lists are decorated. I think the best idea I've come up with so far is the ':initial' pseudo-class. Example: ul:initial {content: attr(title)} ul {content: contents} This says that (1) ul has an alternative state and the browser should therefore allow the user to toggle the element between states (the method depends on the browser, but a left click or the enter key seem good choices); (2) in the initial state, the ul shows its title attribute; (3) in the other state, the ul shows its normal content, i.e., the list items. (Actually, the second rule is the default and can be omitted.) Another example: div:initial * {display: none} div:initial h2 {display: block} ... <div> <h2>Heading of this section</h2> <p>First paragraph... ... </div> I hope it is pretty obvious what this does... Bert -- Bert Bos ( W 3 C ) http://www.w3.org/ http://www.w3.org/people/bos W3C/ERCIM bert@w3.org 2004 Rt des Lucioles / BP 93 +33 (0)4 92 38 76 92 06902 Sophia Antipolis Cedex, France
Received on Wednesday, 20 February 2008 23:16:53 UTC