44 lines
1.5 KiB
Python
44 lines
1.5 KiB
Python
from gi.repository import Gio, GLib
|
|
from threading import Timer
|
|
|
|
# window.py
|
|
#
|
|
# Copyright 2024 Daniele Verducci
|
|
#
|
|
# This program is free software: you can redistribute it and/or modify
|
|
# it under the terms of the GNU General Public License as published by
|
|
# the Free Software Foundation, either version 3 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU General Public License
|
|
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
#
|
|
# SPDX-License-Identifier: GPL-3.0-or-later
|
|
|
|
|
|
# A timer for polling the light sensor via DBus.
|
|
# Checks the sensor at a specific interval and runs a callback only when an update is detected.
|
|
#
|
|
# Usage:
|
|
# Instantiate it, then call run(interval_in_seconds, callback_function)
|
|
# To stop it, call cancel()
|
|
class SensorsPollingTimer(Timer):
|
|
def run(self):
|
|
# Setup
|
|
bus = Gio.bus_get_sync(Gio.BusType.SYSTEM, None)
|
|
self.proxy = Gio.DBusProxy.new_sync(bus,Gio.DBusProxyFlags.NONE,None,'net.hadess.SensorProxy','/net/hadess/SensorProxy','org.freedesktop.DBus.Properties', None)
|
|
self.oldValue = None
|
|
|
|
# Loop
|
|
while not self.finished.wait(self.interval):
|
|
value = self.proxy.Get('(ss)', 'net.hadess.SensorProxy', 'LightLevel')
|
|
if (self.oldValue != value):
|
|
self.oldValue = value
|
|
self.function(value) # Invoke callback
|
|
|