JSF 2.0 Execute javascript on FacesContext.responseComplete()

Question

I'm using JSF 2.0, and when a form is submitted, I am generating a download. As a result of this, the submission is NOT using AJAX. When the file has been generated for download, I am calling FacesContext.getCurrentInstance().responseComplete(); to tell the browser it's done.

However, for the sake of User Experience, I want to show a "loading" message on screen when the file is being generated, then remove this message once the download has been generated. Is there a way to do this considering the lack of AJAX?

Thanks,
Chris

Edit:
I am already calling the javascript to show the message onSubmit. My problem is then calling the Javascript to remove the message when the response has completed.

score 3 · Accepted Answer · answered Mar 20 '12 at 10:36

3

Raise your loading message before submitting the form.

FacesContext.responseComplete() does not send any response to the client. It merely sets a flag in the context to tell the JSF framework that no further lifecycle phases should be processed after the current one completes.

answered Mar 20 '12 at 10:36

McDowell

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Sorry, bad explanation on my part, I'm already calling the required Javascript on the form's onSubmit event. However I want to then call Javascript to remove it once the response has completed. – Chris Matthews Mar 20 '12 at 10:40
Ah, I should have thought of that. – McDowell Mar 20 '12 at 10:43
2

There's a cookie-based approach described [here](http://stackoverflow.com/questions/1106377/detect-when-browser-receives-file-download). – McDowell Mar 20 '12 at 10:47
Thanks, that looks promising! – Chris Matthews Mar 20 '12 at 10:56

JSF 2.0 Execute javascript on FacesContext.responseComplete()

1 Answers1