Add timer for checking themes

yin_yang/__main__.py

@@ -5,21 +5,30 @@
 from argparse import ArgumentParser
 from logging.handlers import RotatingFileHandler
 from pathlib import Path
+from threading import Timer
 
 from PySide6 import QtWidgets
 from PySide6.QtCore import QTranslator, QLibraryInfo, QLocale, QObject
 from PySide6.QtGui import QIcon
 from PySide6.QtWidgets import QSystemTrayIcon, QMenu
 from systemd import journal
 
+from yin_yang.helpers import is_flatpak
 from yin_yang.notification_handler import NotificationHandler
 from yin_yang import daemon_handler
 from yin_yang.meta import ConfigEvent
 from yin_yang import theme_switcher
 from yin_yang.config import config, Modes
+from yin_yang.repeat_timer import RepeatTimer
 from yin_yang.ui import main_window_connector
 
 logger = logging.getLogger()
+timer = RepeatTimer(45, theme_switcher.set_desired_theme)
+
+if is_flatpak():
+    timer.daemon = True
+    timer.name = "Yin-Yang Timer"
+    timer.start()
 
 
 def setup_logger(use_systemd_journal: bool):

yin_yang/repeat_timer.py

@@ -0,0 +1,7 @@
+from threading import Timer
+
+
+class RepeatTimer(Timer):
+    def run(self):
+        while not self.finished.wait(self.interval):
+            self.function(*self.args, **self.kwargs)