def wait_for(check_func,
error_message='Timed out waiting for completion',
timeout=10):
"""
Wait until web engine page loaded
:return boolean: True on success, False on timeout
"""
# Timeout in 10 seconds
end_time = time.time() + timeout
app = Registry().get('application')
success = True
while not check_func():
now = time.time()
if now > end_time:
log.error(error_message)
success = False
break
time.sleep(0.001)
app.process_events()
return success
