execute javascript after action?

[Ronald Johnson]

hi,

how can i make sure that a piece of javascript is executed after i called an action on the server?
any ideas how to achieve this (no matter how; jsf, ajax4jsf, rich faces...)

thanks for any tips

[Manuel DeAngelo]

Hi Ronald!

You could just have a variable in your form bean and set this to true in your action and in the jsp / facelet you have an

  <c:if test="#{myForm.isJSExecute}">
    <script>callMyJSFunction();</script>
  </c:if>

regards, Manuel

[Ronald Johnson]

Hi manuel, hmm, let me clarify, i have code like this:

  
<script>
function myFunction(){
  //do something
}
</script>
<a4j:commandLink action="#{someBean.itemClicked}" >
  <f:param name="listEntry" value="#{node.ref.id}"/>
  <h:outputText value="#{node.ref}"/>
</a4j:commandLink>
  

and I want the myFunction() to be called, but only when the action #{someBean.itemClicked} has finished executing.

i can for example not use onComplete attribute since it is just looking at the client side and not on the server side....
[ February 12, 2008: Message edited by: Ronald Johnson ]

[Tim Holloway]

This gets back to the issue about JSF being based on HTTP and HTTP being a request/response protocol.

When you fire an Action, a request is made to the server. The request is processed as per the JSF lifecycle specs and a response is sent back to the client. The response is going to be a complete HTTP page.

So the answer is: implement an onLoad() JavaScript method. If it will be used on the same page that the request was made from but only after updating, set a page variable that the onLoad method can use to tell it's a reload.