|
|
|
|
import subprocess
|
|
|
|
|
import logging
|
|
|
|
|
|
|
|
|
|
from .toggle import ToggleControl
|
|
|
|
|
from .util import process_reaper, backoff
|
|
|
|
|
|
|
|
|
|
__all__ = ['CaffeineControl']
|
|
|
|
|
|
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
class CaffeineControl(ToggleControl):
|
|
|
|
|
def __init__(self, letter: str = 'c'):
|
|
|
|
|
super().__init__(letter, False)
|
|
|
|
|
|
|
|
|
|
def configure(self, argument_parser):
|
|
|
|
|
argument_parser.add_argument('--caffeine-timeout',
|
|
|
|
|
help='Time between user activity reports to xscreensaver (in seconds)',
|
|
|
|
|
type=int,
|
|
|
|
|
default=10)
|
|
|
|
|
|
|
|
|
|
def bind_arguments(self, args):
|
|
|
|
|
super().bind_arguments(args)
|
|
|
|
|
self.periodic = process_reaper(backoff(self.args.caffeine_timeout)(self.__periodic))
|
|
|
|
|
|
|
|
|
|
def __periodic(self):
|
|
|
|
|
if self.state:
|
|
|
|
|
logger.debug("Poking screensaver")
|
|
|
|
|
return subprocess.Popen(['xscreensaver-command', '-deactivate'],
|
|
|
|
|
stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL,
|
|
|
|
|
stderr=subprocess.DEVNULL)
|
