Question

Do anyone have an idea about, how to register the window unload event in an ExtJS MVC application.

Ext.EventManager.on(window, 'beforeunload', function() {
alert('cross-exit tab click AND cross-exit browser click');});

The above code needs to be placed in a javascript file. I’m not sure which file should carry the above code.

Answer 1

window.onbeforeunload = function() {
return "You have made changes, are you sure you would like to navigate away from the page?";}.bind(this);

The above code does the job. I placed it under my main controller.