On 18/12/2008, at 4:29 AM, Chuck Hill wrote:
In case the answer is no, here's the background. I have a
WOPopUpButton that displays a list of choices, as well as a
noSelectionString. The user can make a choice from the list, or
supply an "other" value in the WOTextField, but they're mutually
exclusive. I've put some Javascript on the page that does the
following:
1. On the textfield's onchange event, the JS sets the pop-up to
selectedIndex = 0, selecting the noSelectionString.
2. On the pop-up's onchange event, the JS clears the value in the
textfield.
In Safari, at least, the JS is not reliable: specifically, if I
accept an auto-completion from Safari's history, then the onchange
event doesn't seem to fire, and I get a non-null selection in the
pop-up, as well as text in the textfield. As a workaround, I was
going to have setOtherValue() reverse the work done in
setAnswerSelection() if the former is supplied with a non-null value.
To be honest, the whole approach seems a bit baroque, so if someone
wants to suggest something better instead of answering the initial
question, that would also be fine. :-)
I think Andrew's solution is working so I will leave this alone.
Feel free to weigh in. :-)
I'm still using the JS on the page, because it provides a visual cue
to what is going on. If takeValuesFromRequest() notes input values
from both the pop-up and the textfield, it sets a boolean flag (which
has been reset in awake()). In setAnswerSelection() (for the pop-up),
if the flag is set then the method pretends it received null and
behaves accordingly.
It appears to work. Andrew---is this what you meant? Chuck---do you
have a different approach?
--
Paul.
w http://logicsquad.net/
h http://paul.hoadley.name/
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