How to add listener for DomContentLoaded and Load event

[raghavan.s]

Hi,

I posted this question in mozilla.dev.embedding and got no response.
Trying my luck here,

I am embedding xulrunner in a java application. The application will
launch new window with some URL to measure performance
metrics like DNS time, Connection time, Time to First byte , Time to
last byte, Start render time and document complete.

I used following code to launch the window:

nsIThread thread = threadMgr.getMainThread();

windowWatcher =
(nsIWindowWatcher)serviceManager.getServiceByContractID("@mozilla.org/
embedcomp/window-watcher;1",nsIWindowWatcher.NS_IWINDOWWATCHER_IID);

nsIWindowWatcher watcherProxy =
(nsIWindowWatcher)proxy.getProxyForObject(thread,nsIWindowWatcher.NS_IWINDOWWATCHER_IID,windowWatcher,nsIProxyObjectManager.INVOKE_SYNC);

nsIDOMWindow window=watcherProxy.openWindow(null,
"about:blank","window1",
"chrome,centerscreen,resizable,width=1024,height=768", null);

nsIInterfaceRequestor ir = (nsIInterfaceRequestor)
window.queryInterface(nsIInterfaceRequestor.NS_IINTERFACEREQUESTOR_IID);

nsIWebNavigation webNav
=(nsIWebNavigation)ir.getInterface(nsIWebNavigation.NS_IWEBNAVIGATION_IID);

nsIWebNavigation webNavProxy =
(nsIWebNavigation)proxy.getProxyForObject(thread,nsIWebNavigation.NS_IWEBNAVIGATION_IID,webNav,nsIProxyObjectManager.INVOKE_SYNC);

webNavProxy.loadURI(url,nsIWebNavigation.LOAD_FLAGS_BYPASS_PROXY,
null, postDataStream, headers);

I added listener for the events MozAfterPaint, DomContentLoaded, Load
as below using
nsIWindowMediatorListener windowMediator.addListener(this);

public void onOpenWindow(nsIXULWindow xulWin)
{
nsIDOMWindow window = (nsIDOMWindow)
((nsIInterfaceRequestor)xulWin.getDocShell().queryInterface(nsIInterfaceRequestor.NS_IINTERFACEREQUESTOR_IID)).getInterface(nsIDOMWindow.NS_IDOMWINDOW
_IID);
nsIDOMEventTarget winTarget =
(nsIDOMEventTarget)window.queryInterface(nsIDOMEventTarget.NS_IDOMEVENTTARGET_IID);

winTarget.addEventListener("MozAfterPaint",this,true); //want
to notified the event in capturing phase.
winTarget.addEventListener("load",this,true);
winTarget.addEventListener("DOMContentLoaded",this,true);
}

I am able to get notification for the url given in
windowWatcher.openWindow. For the URL loaded via
nsIWebNavigation.LoadURI, i am not getting notified.

Am i doing anything wrong while adding the event listeners ?

Kindly help me to resolve this.

Regards,
Raghavan