minor fix

src/drive_mount_row/imp.rs

@@ -31,7 +31,7 @@ pub struct DriveMountRow {
 impl ObjectSubclass for DriveMountRow {
     const NAME: &'static str = "DriveMountRow";
     type Type = super::DriveMountRow;
-    type ParentType = gtk::Box;
+    type ParentType = gtk::ListBoxRow;
 }
 
 // ANCHOR: object_impl
@@ -55,6 +55,13 @@ impl ObjectImpl for DriveMountRow {
         // `SYNC_CREATE` ensures that the label will be immediately set
         let obj = self.obj();
 
+        let action_row_content_box = gtk::Box::builder()
+            .orientation(Horizontal)
+            .spacing(0)
+            .vexpand(true)
+            .hexpand(true)
+            .build();
+
         let partition_row_expander_adw_listbox = gtk::ListBox::builder()
             .hexpand(true)
             .vexpand(true)
@@ -150,13 +157,13 @@ impl ObjectImpl for DriveMountRow {
 
         //
 
-        obj.append(&partition_row_expander_adw_listbox);
+        action_row_content_box.append(&partition_row_expander_adw_listbox);
 
-        obj.append(&mountpoint_entry_row_adw_listbox);
+        action_row_content_box.append(&mountpoint_entry_row_adw_listbox);
 
-        obj.append(&mountopts_entry_row_adw_listbox);
+        action_row_content_box.append(&mountopts_entry_row_adw_listbox);
 
-        obj.append(&partition_row_delete_button);
+        action_row_content_box.append(&partition_row_delete_button);
 
         obj.connect_sizegroup_notify(clone!(
             #[weak]
@@ -210,9 +217,11 @@ impl ObjectImpl for DriveMountRow {
                 }
             )
         );
+
+        obj.set_child(Some(&action_row_content_box));
     }
 }
 // Trait shared by all widgets
 impl WidgetImpl for DriveMountRow {}
 
-impl BoxImpl for DriveMountRow {}
+impl ListBoxRowImpl for DriveMountRow {}

src/drive_mount_row/mod.rs

@@ -7,7 +7,7 @@ use crate::partitioning_page::FstabEntry;
 
 glib::wrapper! {
     pub struct DriveMountRow(ObjectSubclass<imp::DriveMountRow>)
-        @extends gtk::Box, gtk::Widget,
+        @extends gtk::Widget, gtk::ListBoxRow,
         @implements gtk::Accessible, gtk::Actionable, gtk::Buildable, gtk::ConstraintTarget;
 }
 

src/manual_partitioning_page/mod.rs

@@ -81,7 +81,7 @@ pub fn manual_partitioning_page(
         partition_method_manual_fstab_entry_array_refcell,
         move |_|
             {
-                drive_mounts_adw_listbox.append(&create_mount_row(&drive_mounts_adw_listbox, &drive_rows_size_group, &partition_array_refcell.borrow(), &partition_changed_action, &used_partition_array_refcell, &do_used_part_check_refcell))
+                create_mount_row(&drive_mounts_adw_listbox, &drive_rows_size_group, &partition_array_refcell.borrow(), &partition_changed_action, &used_partition_array_refcell, &do_used_part_check_refcell);
             }
         )    
     );
@@ -156,7 +156,7 @@ fn create_mount_row(
     partition_changed_action: &gio::SimpleAction,
     used_partition_array_refcell: &Rc<RefCell<Vec<String>>>,
     do_used_part_check_refcell: &Rc<RefCell<bool>>,
-) -> DriveMountRow {
+) {
     let partition_scroll_child = gtk::ListBox::builder()
         .selection_mode(gtk::SelectionMode::None)
         .build();
@@ -264,11 +264,15 @@ fn create_mount_row(
         partition_scroll_child.append(&partition_row);
     }
 
-    let listbox_clone = listbox.clone();
+    
+    listbox.append(&row);
+
     row.connect_closure(
         "row-deleted",
         false,
         closure_local!(
+            #[weak]
+            listbox,
             #[strong]
             row,
             #[strong]
@@ -277,13 +281,10 @@ fn create_mount_row(
             partition_changed_action,
             move |row: DriveMountRow| 
                 {
-                    listbox_clone.remove(&row);
+                    listbox.remove(&row);
                     (*used_partition_array_refcell.borrow_mut()).retain(|x| x != &row.partition());
                     partition_changed_action.activate(None);
                 }
         ),
     );
-
-    // Return row
-    row
 }