MATE desktop popup window class for AutoKey

Question

In MATE desktop in Fedora 28, I have set a shortcut for switching windows using a popup window to Super-j. I've discovered AutoKey that allows you to re-map the keys for certain applications/windows. It has a script that tells you what the window class is. But with the popup window, the widnow disappears too fast and the script can't quite grab it as you need to click on the window. Is there a way to get the window class of this popup window? I want to re-bind left key to Super-h while the popup is active. Or is there another way to achieve this?

Answer 1

I see that you've already found another solution, but I thought I'd add an AutoKey solution, too:

import time
mouse.wait_for_click(1)
time.sleep(0.2)
winClass = window.get_active_class()
dialog.info_dialog("Window class", "Active window class:\n\n'%s'" % winClass)