#!/usr/bin/python3
#
# xcaffeine: keeps xscreenserver from blanking screen while in fullscreen mode
# Jesper Larsson, 2020-07-20

from time import sleep
from ewmh import EWMH
from subprocess import call

ewmh = EWMH()
while True:
    if any('_NET_WM_STATE_FULLSCREEN' in ewmh.getWmState(w, str=True) for w in ewmh.getClientList()):
        call(['xscreensaver-command', '-deactivate'])
    sleep(55)