Add support for disabling selection in a list box

Documentation/Reference/classes/ListBox.md

@@ -78,3 +78,9 @@ Set the style of the list box to the sidebar style.
 Add a handler for when the selection changes.
 - Parameter handler: The handler.
 - Returns: The list box.
+
+### `noSelection(_:)`
+
+Choose whether to use the single selection or no selection mode.
+- Parameter noSelection: Whether to use the no selection mode.
+- Returns: The list.

Sources/CGTUI/shim.h

@@ -2286,6 +2286,22 @@ gtui_listbox_remove (uint64_t box, uint64_t widget)
   gtk_list_box_remove ((GtkListBox *)box, parent);
 }
 
+static void
+gtui_listbox_set_no_selection (uint64_t box, gboolean no_selection)
+{
+  g_assert_nonnull (box);
+  g_assert (GTK_IS_LIST_BOX (GTK_LIST_BOX ((void *)box)));
+
+  if (no_selection)
+    {
+      gtk_list_box_set_selection_mode (box, GTK_SELECTION_NONE);
+    }
+  else
+    {
+      gtk_list_box_set_selection_mode (box, GTK_SELECTION_SINGLE);
+    }
+}
+
 static char *
 gtui_stringlist_get_selected (uint64_t dropdown, uint64_t list)
 {

Sources/Libadwaita/GTK/ListBox.swift

@@ -128,6 +128,14 @@ public class ListBox: NativeWidgetPeer, InsertableContainer {
         return self
     }
 
+    /// Choose whether to use the single selection or no selection mode.
+    /// - Parameter noSelection: Whether to use the no selection mode.
+    /// - Returns: The list.
+    public func noSelection(_ noSelection: Bool = true) -> Self {
+        gtui_listbox_set_no_selection(self.nativePtr, noSelection.cBool)
+        return self
+    }
+
 }
 
 /// Run this function when a row gets selected.