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