Hi all,
thanks in advance for your precious support.
I have an AjaxTabbedPanel with two tabs. In the first tab there is a
panel with a form, some input fields and a save button; the content of
the second tab is irrelevant.
Use-case:
1 - user selects first tab;
2 - user makes some changes in the input fields but doesn't click the
save button;
3 - user selects second tab.
On step 3, users loses all his updates without being warned.
I would like to add a javascript confirm dialog to be triggered only
when some changes have been performed but not saved (no ModalWindow,
just javascript). I mean something like: "There are some unsaved
changes that will be lost, do you really want to switch tab?" <OK>
<Cancel>. OK brings the user to the second tab, Cancel makes him stay
in the first tab.
The panel inside the first tab has a handy boolean hasUnsavedChanges()
method, but I don't know where I could call it and how to inject an
"if (!confirm('...')) return false;".
Maybe in the onClick(AjaxRequestTarget target) method of the
AjaxFallbackLink returned by AjaxTabbedPanel's newLink() method?
What's the best way to do it?
Thank you very much,
Fabio Fioretti - WindoM
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