- From: Matthew Thomas <mpt@myrealbox.com>
- Date: Thu, 1 Jul 2004 22:32:11 +1200
On 1 Jul, 2004, at 12:49 AM, Ian Hickson wrote:
> ...
> I did some research into the matter and it turns out that no existing
> browser correctly parses nested OPTGROUPs. They basically all parse
> OPTGROUP as if it had an optional end tag. So it wouldn't be possible
> to allow nested OPTGROUPs, sadly.
Such a control doesn't even exist (that I've seen) in native Microsoft
Windows applications, because on that OS option menus are implemented
as "drop-down listboxes", and listboxes don't have submenus.
> ...
> Most use cases of trees don't seem to be directly related to form
> submission, though, so we're probably going to optimise its design for
> the interaction case rather than for the form submission case.
> ...
Use cases of submittable outline selections:
* Country > City/Region/State
- international airline sites
- signup page for any site using MS Passport, e.g.
Hotmail (currently it reloads for every choice, ugh)
- dating sites
- timeanddate.com
* Product > Component/Version
- bug databases, e.g. Bugzilla
- knowledge bases, e.g. support.microsoft.com
* category > subcategory > search within this category
- Yahoo Directory
- Google Directory
- Open Directory
- eBay.
It seems to me that it would be used more often than (for example) the
proposed time input field.
--
Matthew Thomas
http://mpt.net.nz/
Received on Thursday, 1 July 2004 03:32:11 UTC