<VALUE-OF> inside javascript

Hi,
I've been trying to do the following at the top section of my report:
The text element is of type HTML

<a id="link" href="javascript:hidedetails()">Hide Details</a>
<script type="text/javascript">
function hidedetails() {
var val = document.getElementById("link").innerHTML;
if (val == "Hide Details") {
alert(<VALUE-OF Format="HTML">
reportContext.getHttpServletRequest().getSession().getAttribute("level1");
</VALUE-OF>)
} else {
alert("no value");
}
}
</script>

but I get Error: Object expected.

My question: is it possible to set/access the reportContext from within the javascript?

All I'm trying to do is: Have a toggle(name toggles between two values) link, onClick of which will set/unset a value in reportContext. As a test, I was just trying to get the attribute first. Is it possible at all?

Thanks a lot for your help.

best
Rakesh

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mailtorake

hello,

I've been trying to do the following at the top section of my report:
The text element is of type HTML

Virgil Dodson

Hi Rakesh, 
 
Take a look at this example in the DevShare that uses client side JavaScript to show/hide certain report elements. The key in these examples was the use of the Bookmark tag on BIRT elements that can be references using getElementById. 
 
<a class='bbc_url' href='http://www.birt-exchange.org/devshare/designing-birt-reports/1126-collapse-groups-client-side/#description'>Collapse groups client side - Designs & Code - BIRT Exchange</a> 
 
If you are trying to control BIRT reports using JavaScript, you should take a look at Actuate's JSAPI at <a class='bbc_url' href='http://www.birt-exchange.org/wiki/GSG:Getting_Started_with_BIRT_JavaScript_API/'>GSG:Getting Started with BIRT JavaScript API - BIRT Wiki - BIRT Exchange</a>

mailtorake

Hi Virgil,
Thanks a lot for responding with useful links; I'm yet to try those things.

All I'm trying to do is to toggle a global value in report's context, whenever user clicks on a link in the final report.

Report Header: Toggle Link <-- clicking on this link should do: reportContext.getHttpServletRequest().getSession.setAttribute("hide", true);

Report data table

Thanks
Rakesh

Virgil Dodson

Hi Rakesh, by the time this function hidedetails() runs in the client browser, the reportcontext is long gone.... unless I don't clearly understand what you are trying to accomplish.

mailtorake

Hi Virgil, 
I achieved it by sending the flag in the url and setting the value in beforeFacotry event. 
 
On the report page:

<VALUE-OF Format="HTML"> 
var hidedetails = reportContext.getHttpServletRequest().getSession().getAttribute("hidedetails"); 
hidedetails = (hidedetails != null) ? ((hidedetails == "t") ? "f" : "t") : "f"; 
var currUrl = reportContext.getHttpServletRequest().getSession().getAttribute("currUrl"); 
if(currUrl){ 
currUrl += "&hidedetails=" + hidedetails; 
var msg = (hidedetails == "f") ? "Show Details" : "Hide Details"; 
""+msg+""; 
}else{ 
"" 
} 
</VALUE-OF> 
 
beforeFacotry:

importPackage( Packages.java.net ); 
req = reportContext.getHttpServletRequest().getRequestURL()+"?"; 
req += reportContext.getHttpServletRequest().getQueryString(); 
 
hidedetails = reportContext.getHttpServletRequest().getParameter("hidedetails"); 
if (hidedetails) { 
reportContext.getHttpServletRequest().getSession().setAttribute("hidedetails", hidedetails); 
req = req.replace(/&hidedetails=[a-z]?/g, ''); 
} 
 
//For Show/Hide pcodes link 
reportContext.getHttpServletRequest().getSession().setAttribute("currUrl", req); 
 
Thanks for your help. 
 
Best 
Rakesh