gwt client session time out - gwt

Question

I am using gwt 2.3 with gwtp framework.In this application I wan to maintain a session time of 5 mins.This means if current user is not doing up to 5 min and he comes after five min then on his first event/action on screen a he should be be logged out.
In gwt there is class named Timer which can be used in this issues.But I am not getting how to recognize action of user on the screen.I did google on it, & found the code for gwt-ext.Below is the code of gwt-ext
Ext.get(“pagePanel”).addListener(“click”, new EventCallback() {
#Override
public void execute(EventObject e) {
MessageBox.alert(“On Mouse Click”);
}
});
Ext.get(“pagePanel”).addListener(“keydown”, new EventCallback() {
#Override
public void execute(EventObject e) {
MessageBox.alert(“On Key Press Click”);
}
});
In above code tag in working properly so I am attaching link from where I got this code.here
Same type of code I am looking in gwt.If there any other better way to do this then please let me know. Thanks in advance

Answer 1

If action/event can be really everythin, I would solve it with a
NativePreviewHandler in the following way:
boolean expired;
final Timer logoutTimer = new Timer() {
#Override
public void run() {
expired = true;
}
};
NativePreviewHandler nph = new NativePreviewHandler() {
#Override
public void onPreviewNativeEvent(NativePreviewEvent event) {
if (!expired) {
logoutTimer.cancel();
logoutTimer.schedule(300000);
} else {
// do your logout stuff here
}
}
};
Event.addNativePreviewHandler(nph);
If the user shell be logged out without a new action after 5 minutes:
final Timer logoutTimer = new Timer() {
#Override
public void run() {
// do your logout stuff here
}
};
NativePreviewHandler nph = new NativePreviewHandler() {
#Override
public void onPreviewNativeEvent(NativePreviewEvent event) {
// Of course do this only when logged in:
logoutTimer.cancel();
logoutTimer.schedule(300000);
}
};
Event.addNativePreviewHandler(nph);