Hi,
I'd rather trigger 'change' event before calling
'window.setTimeout(hideAutoComplete, 500);'. To avoid 'change' to be
called twice, we can set flag 'triggerChangeOnHide = false' and 'visible
= 0 '
On 20/07/2015 16:58, Elger van Boxtel wrote:
Hi All,
I’m having a problem with the current implementation of the
autocomplete. Let me explain first:
I have a form with a autocomplete field (AutoCompleteBehavior) and a
saveAjaxButtonon it. Apart from this, this field has a onchange
AjaxEventBehaviourto do some validation on the backend and possibly
make some changes to the field.
When I fill in the field and without leaving the field (and thus no
blur event has been triggered yet) I click on the save AjaxButton.
What I’d expect to happen is the following event flow:
-*blur*: the field has been blurred
-*change*: the field has been changed
-*click*: the click on the save button
Instead this is what happens:
-*blur*
-*click*
-*change*
Further investigation tells me that this is because of the
wicket-autocomplete.jsimplementation for the blurevent handler.
wicket-autocomplete.js can be found
on:\wicket-head\wicket\wicket-extensions\src\main\java\org\apache\wicket\extensions\ajax\markup\html\autocomplete
On line 91 the blur event hander can be found:
Wicket.Event.add(obj, 'blur', function (jqEvent) {
window.setTimeout(hideAutoComplete, 500);
});
This wraps the hideAutoCompletefield in a setTimeoutof 500 ms. In the
hideAutoComplete, the changeevent is triggered (line 438).
The setTimout call causes the change event to be executed after the
click event, leaving me with a partially saved form.
To fix this, I could remove the setTimeoutfunctionality from the
blurevent handler. This will call hideAutoCompleteimmediately. This
change will cause the autocomplete dialog to be closed immediately and
leaving us with the right event stack. I’ve not noticed any other side
effects.
I have a patch ready, but I’d like to have your thoughts on this. When
necessary, I can create an issue on https://issues.apache.org and send
a pull request.
All code has been taken from latest greatest Wicket on Github.
With kind regards,
Elger van Boxtel
Agile Developer
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