Prevent record deactivation from list view display

Hello,

I have a Custom entity. I am using the below JScript to prevent deactivation of record. It is working fine on Form level Deactivate button. But it is not working on from list view level Deactivate button. How to make it work on this list view?

function preventDeactivate(econtext) {
var eventArgs = econtext.getEventArgs();
if (eventArgs.getSaveMode() == 5) {
eventArgs.preventDefault();
}
}