block signal handlers while changing widget value programmatically

src/settings/setting/widgets/BooleanWidget.py

@@ -10,7 +10,7 @@ class BooleanWidget(BaseWidget):
             valign=Gtk.Align.CENTER,
             halign=Gtk.Align.CENTER,
         )
-        self.switch.connect("notify::active", self._on_boolean_toggled)
+        self.handler_id = self.switch.connect("notify::active", self._on_boolean_toggled)
 
         self.row.set_activatable_widget(self.switch)
 
@@ -25,7 +25,10 @@ class BooleanWidget(BaseWidget):
     def _update_initial_state(self):
         current_value = self.setting._get_backend_value()
         is_active = current_value == self.setting.map.get(True)
-        self.switch.set_active(is_active)
+        
+        with self.switch.handler_block(self.handler_id):
+            self.switch.set_active(is_active)
+        
         self._update_reset_visibility()
 
     def update_display(self):
@@ -41,8 +44,10 @@ class BooleanWidget(BaseWidget):
         default_value = self.setting.map.get(self.setting.default)
 
         self.setting._set_backend_value(default_value)
-        self.switch.set_active(self.setting.default)
-
+        
+        with self.switch.handler_block(self.handler_id):
+            self.switch.set_active(self.setting.default)
+        
         self._update_reset_visibility()
 
     def _update_reset_visibility(self):

src/settings/setting/widgets/ChoiceWidget.py

@@ -16,7 +16,7 @@ class ChoiceWidget(BaseWidget):
         self._set_dropdown_width(items)
         self._update_dropdown_selection()
 
-        self.dropdown.connect("notify::selected", self._on_choice_changed)
+        self.handler_id = self.dropdown.connect("notify::selected", self._on_choice_changed)
 
         control_box = Gtk.Box(spacing=6, orientation=Gtk.Orientation.HORIZONTAL)
         control_box.append(self.reset_revealer)
@@ -32,7 +32,9 @@ class ChoiceWidget(BaseWidget):
 
     def _update_dropdown_selection(self):
         current_index = self.setting._get_selected_row_index()
-        self.dropdown.set_selected(current_index)
+
+        with self.dropdown.handler_block(self.handler_id):
+            self.dropdown.set_selected(current_index)
 
     def _set_dropdown_width(self, items):
         layout = self.dropdown.create_pango_layout("")
@@ -59,7 +61,8 @@ class ChoiceWidget(BaseWidget):
         default_value = self.setting._get_default_row_index()
 
         if default_value is not None:
-            self.dropdown.set_selected(default_value)
+            with self.dropdown.handler_block(self.handler_id):
+                self.dropdown.set_selected(default_value)
             self.setting._set_backend_value(self.setting.default)
 
         self._update_reset_visibility()