Show processing image on every submit action

There's an easy way to show processing image on each submit action in APEX.

Just create DA on global page (page 0) that fires on event "Before Page Submit" and in Action section choose "Execute JavaScript Code". The code that you should add is:

apex.widget.waitPopup();

Tested on APEX version 4.2.2.00.11.

Saving Values of Disabled Items to Session State

As you may know disabled items are not submitted in HTML forms (see w3schools.com). It's same for APEX items, at least for ones disabled with dynamic actions or JavaScript/jQuery.

There's a simple workaround for this. You can create dynamic action on event Before Page Submit that executes JavaScript code that will remove HTML attribute disabled from all items on page:

$(':disabled').removeAttr('disabled');

If you want this to work on all pages, put this dynamic action on global page (page 0).

As I said, this will not work for text field items that have property Disabled set to Yes and Save Session State to No. To save this kind of text field items set property Save Session State to Yes. In this case input item will have HTML attribute readonly, instead of disabled.