[Xsltforms-support] xf:select1 'minimal' cannot select single item after itemset updated

[Kostis A. <ank...@gm...>]

(I hope that i'm not becoming too anoying...)

Hi,

I think thar the xf:select are now much improved, but there is still 1
minor problem that needs to be fixed:

PROBLEM
----------------
On a xf:select1 control with 'minimal' appearence that gets its
pick-list from xf:itemset,
When the itemset gets updated and results with only a single item,
the user cannot select that single item.


Note that when itemset gets updated with multiple-items, the problem
is still there,
but with the 1st pick-list item this time.

In that case though, the user can interactively workaround it,
by selecting first a different item (i.e. the 2nd), and then selecting
back the 1st one,
in order to properly set the underlying node-value.

Reported against rev372, Chrome, Firefox, IE.


SOLUTION
----------------
To workaround it with xforms-code, an action like the one below maybe
attached on some itemset-update event (i.e  'submit-done' event):
   <xf:setvalue bind="/items/item[1]" if="note(/items/items[2])"
/><!-- auto-select single-items -->
But for some undetermined reason i can't make this trick to work on
all xforms...


Nevertheless, i think the correct behavior for when the itemset gets
updated should either be:

  a) to insert a 'null' item and set it preselected on the pick-list,
which whould be auto-deleted after the first user-selection
(this is the current behavior of the xf:select1 after the initial
model construction)

  b) or pre-select the single item, as similar to the workaround
exemplified above, or .


I would prefer the former solution (a), since it fixes the behavior
even when pick-list has many items, and because it provides for
implementing both choices to developers.


Regards,
  Kostis Anagnostopoulos