How do I handle an event on a javascript object (window)

[el_chief]

I want to handle an event on a POJO (plain old javascript object), the global window object

I could use window.attachEvent or window.addEventListener, but what is the Ext way?

In particular, I'd like to handle the window.onbeforeunload event, but would like a generic method.

window.onbeforeunload is not acceptable :)

Thanks

[vietits]

It seems that you want to add listener to DOM object by using Ext. If so, here is my suggestion:


var object = Ext.get(domObject);
object.on({...});

[scottmartin]

Misunderstood question .. removed answer

Scott.

[el_chief]

looks like Ext.get(window) returns null...

[vietits]

With Ext 4.1, you can use Ext.get(). However, you could try the following solution:


var object = new Ext.Element(domObject);
object.on(....);

[khmurach]

Demo here http://ext4all.com/post/how-to-handle-an-event-of-javascript-window

[el_chief]

Demo here http://ext4all.com/post/how-to-handle-an-event-of-javascript-window

this looks like the best generic method. doesn't work with onbeforeunload, but that's probably a bug :)

thanks!

[khmurach]

Use


Ext.EventManager.addListener(window, 'beforeunload', function (e) {
return alert('beforeunload');
});