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RE: Switch case construct

From: Francisco Monteiro <monterro2004@tiscali.co.uk>
Date: Fri, 18 Aug 2006 15:37:06 +0100
To: <www-forms@w3.org>
Message-ID: <004c01c6c2d3$c76bb310$0500a8c0@computername>
Nein Danke to your XForm :-), too complicated.
Having the case element as a normal single node binding makes it easier to
design and explain clients. It is hairy enough with all this MIP's.
Next target is repeat control, some serious shortcomings what we have seen
so far to make it page and or virtual grid.
There is a small design change to be made to map Dojo event handling to the
XML event handler that is why sometimes FireFox freezes!


From: www-forms-request@w3.org [mailto:www-forms-request@w3.org] On Behalf
Of Mark Seaborne
Sent: 18 August 2006 15:10
To: www-forms
Subject: Re: Switch case construct


Ok, I have had a go at reproducing your demo using just XForms 1.0 (see
attached form) and I now appreciate that at the very least it isn't clear
how to reproduce it exactly (I couldn't anyway, though someone cleverer than
me might manage it).

For those who haven't looked, Francisco's form allows a user to select four
pre-defined subsets of cases inside a switch, which can then be navigated
through as tabs.

So there is 1 switch with four cases. Setting a value from a select1 makes a
different predefined subset of the cases relevant and sets focus to the
first of that subset.

The key thing I couldn't manage was using the select1 to both restrict the
cases that a user could select _and_ toggle to the first case of that

The first part is easy, I just used ref on a set of triggers with toggle
actions. However, this could leave a toggle selected that is now outside the
current set of valid cases. So I needed to toggle to the first of the valid
set of cases, and without the ability to dynamically assign the case to
toggle to I couldn't see how to achieve this from a select1.

Consequently I had to use four triggers, which I have taken the bother to
style loosely like a select1 (I could have made it look more convincing if I
could have been bothered).

A?previous thread indicates that XForms will support dynamic selection of a
case to toggle to which might solve the problem.

Apart from that problem I think I was able to reproduce the functionality of
your test form. I am using the latest Firefox build to test and that does
fire the events in each case somewhat erratically, which I will put down to
the fact that it isn't finished (to be fair your form also gets events
confused eventually and freezes Firefox). Firefox also paints the border of
each case whether or not it is selected, which creates an interesting visual
effect :-)

Received on Friday, 18 August 2006 14:37:16 UTC

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