Javascript action before script action

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Lorenz Graf

postedon October 31, 2013at 1:37 PM

Hi

Is there any way to perform a javascript action before a serverside script action?
It is still the spinner topic. If a user clicks on a button that calls a webservice which takes a couple minutes a spinner should be displayed. Since appway performs serverside scriptaction before javascript actions the spinner apperars too late when the service call was already done even if the javascript action (displaying a spinner) is ordered before the service call.

Is there any solution for this? Do we have other solutions in which a requirement like this was implemented?

Cheers,

Lorenz

n/A

repliedon October 31, 2013at 2:23 PM

Appway doesn't execute Javascript actions, those are executed by your browser. If you put a Javascript action on a button and then you attach also a ScriptAction, followed by an Ajax Update Area action, the following happens:

your browser executes the Javascript action
your browser executes the exec(); javascript action which will trigger the server side call that will lead to the execution of the update, validation, process and render again phases
your browser will eventually execute the callback script in the Ajax Update Area Action if specified when the server side call executed at the previous step returns something

If the first Javascript action in the list is a blockUI(), and the callback is an unblockUI() you should have the loading wheel effect.

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