feat(src/window): migrate device monitoring to map/unmap events

Ensure monitoring starts only when the widget is shown and stops on hide, preventing timer leaks and unnecessary refreshes

src/window/controlcenter/battery.py

@@ -357,8 +357,8 @@ class BluetoothConnections(Box):
         # Initial device update
         self.update_devices()
 
-        # Start periodic device monitoring for real-time updates
-        self.start_device_monitoring()
+        self.connect("map", lambda *_: self.start_device_monitoring())
+        self.connect("unmap", lambda *_: self.on_hide())
 
     def toggle_other_devices(self, *_):
         """Toggle the visibility of other devices section"""
@@ -490,6 +490,10 @@ class BluetoothConnections(Box):
         finally:
             self._update_in_progress = False
 
+    def on_hide(self, *_):
+        """Called when the widget is hidden"""
+        self.stop_device_monitoring()
+
     def start_device_monitoring(self):
         """Start periodic monitoring for device changes"""
         # Monitor for device changes every 5 seconds (less aggressive)

src/window/controlcenter/bluetooth.py

@@ -421,13 +421,12 @@ class BluetoothConnections(Box):
 
         self.connect("destroy", self.on_destroy)
         self.connect("unmap", self.on_hide)
+        self.connect("map", lambda *_: self.start_device_monitoring())
 
         self.client.notify("scanning")
         self.client.notify("enabled")
         self.update_devices()
 
-        self.start_device_monitoring()
-
     def handle_user_toggle(self, active: bool):
         self._switch_lock = True
         set_bluetooth_enabled_with_fallback(self.client, active)
@@ -441,6 +440,7 @@ class BluetoothConnections(Box):
 
     def on_hide(self, *_):
         """Called when the widget is hidden (popup closed)"""
+        self.stop_device_monitoring()
         if self.other_devices.get_visible():
             self.other_devices.set_visible(False)
             self.other_devices_scrolled.snap_to_size(0)

src/window/controlcenter/per_app_volume.py

@@ -77,8 +77,8 @@ class PerAppVolumeControl(Box):
         # Initial population
         self._populate_apps()
 
-        # Set up auto-refresh timer for audio streams
-        self._refresh_timer = GLib.timeout_add_seconds(2, self._auto_refresh)
+        self.connect("map", self._on_map)
+        self.connect("unmap", self._on_unmap)
 
     def _auto_refresh(self):
         """Auto-refresh the application list every 2 seconds"""
@@ -88,6 +88,15 @@ class PerAppVolumeControl(Box):
         self._populate_apps()
         return True  # Continue the timer
 
+    def _on_map(self, *_):
+        if self._refresh_timer is None:
+            self._refresh_timer = GLib.timeout_add_seconds(2, self._auto_refresh)
+
+    def _on_unmap(self, *_):
+        if self._refresh_timer is not None:
+            GLib.source_remove(self._refresh_timer)
+            self._refresh_timer = None
+
     def _go_back(self, *_):
         """Return to main control center view"""
         self.control_center.close_per_app_volume()

src/window/controlcenter/wifi.py

@@ -383,11 +383,11 @@ class WifiConnections(Box):
 
         self.connect("destroy", self.on_destroy)
         self.connect("unmap", self.on_hide)
-
-        self.start_network_monitoring()
+        self.connect("map", lambda *_: self.start_network_monitoring())
 
     def on_hide(self, *_):
         """Called when the widget is hidden (popup closed)"""
+        self.stop_network_monitoring()
         if self.other_networks.get_visible():
             self.other_networks.set_visible(False)
             self.other_networks_scrolled.snap_to_size(0)