How to show a popup when page navigation does not happen

Asked Jan 07 '14 at 06:13

Active Jan 07 '14 at 12:03

Viewed 117 times

I have a web page in jsp extension , which is built using jsf. There are command links for some user ids, i.e. every user id is a command link. When a user id is clicked, it goes to another page, where some action can be done.

<h:commandLink value="#{user.userId}" rendered="#{bean.myName == 'ID1'}"  action="#{bean.userIdHasBeenSelected}" immediate="true"/>

Now if the action returns a string called "notDone", i want to show an alert pop up in the jsp and the page will not be navigated and will remain in the same page. But , if the action returns the afore mentioned string , the page will just be not navigated..it will not be reloaded or refreshed..then how can i use window.onload here ?

If not window.onload , then is there any other way of doing it ? One point to be remembered is that, the action is evaluated at java side.

Any suggestions will be deeply appreciated.

edited Jan 07 '14 at 12:03

Aritz

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asked Jan 07 '14 at 06:13

The Dark Knight

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you could add a script let? – tgkprog Jan 07 '14 at 09:14
Use onComplete callback. This can also be used with See: http://stackoverflow.com/questions/15805825/primefaces-oncomplete-attribute-in-jsf-hcommandbutton – MoYapro Jan 07 '14 at 09:46
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If you return an `String` you're telling JSF to perform a navigation, then the page will be reloaded. That will just not work. You need to return an empty `String` or `null` in that case to properly handle it. – Aritz Jan 07 '14 at 12:05
@XtremeBiker Yes, that is what I had done, just after I posted the question and this seems to be a fair solution nonetheless . – The Dark Knight Jan 07 '14 at 12:46
Should I post it as an answer? – Aritz Jan 07 '14 at 13:43
@XtremeBiker Please do, only can then i accept it . – The Dark Knight Jan 08 '14 at 09:20

How to show a popup when page navigation does not happen

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