[WICKET-3] listen for "selection changed" event at AutocompleteTextField

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.2.2
• Fix Version/s: 1.2.6, 1.3.0-beta1
• Component/s: wicket-extensions
• Assignee: Janne Hietamaki
• Reporter: Thomas Krause
• Created: 16/Oct/06 14:09
• Updated: 23/Mar/07 08:33
• Resolved: 23/Mar/07 08:33

Description

When using drop-down list you can listen to the onchange-Event (e.g. with a AjaxFormSubmitBehavior) in order to perform certain actions.

This is not possible when using the AutocompleteTextField even if it is very like a drop-down list. Listening to onchange will activate you behavior at any keystroke and not only when the user selected one entry of the given list.

As a "workaround" I changed the wicket-autocomplete.js in a way, that the AutocompleteTextField will fire the onload-Event whenever a selection was made. onload is no official event for a textfield in HTML so this is a kind of a hack. In addition, onload is fired when the RETURN was hit inside the textbox.

I think the possibility to react on a selection by the user at an AutocompleteTextField would be desirable and enhances the things you can do with. E.g. I use AutocompleteTextField to display a list of matching dictionary-entries and if the user selects one of them I will load this one without additional interaction by the user. But since this is not really a very clean way of implementing this feature I'm in doubt wether this should really find it's way into a wicket release. Maybe there is already a way to listen to the mentioned event, but I didn't find it.

diff of wicket-autocomplete.js:
63a64
> obj.onload();
65c66,70
< }
—
> }
> else
>

{ > obj.onload(); > }

200a206,207
> var obj=wicketGet(elementId);
> obj.onload();