fix: a11y nodes

widget/src/container.rs

@@ -394,13 +394,8 @@ where
         cursor: mouse::Cursor,
     ) -> iced_accessibility::A11yTree {
         let c_layout = layout.children().next().unwrap();
-        let c_state = state.children.get(0);
 
-        self.content.as_widget().a11y_nodes(
-            c_layout,
-            c_state.unwrap_or(&Tree::empty()),
-            cursor,
-        )
+        self.content.as_widget().a11y_nodes(c_layout, state, cursor)
     }
 
     fn drag_destinations(

widget/src/lazy/responsive.rs

@@ -334,18 +334,12 @@ where
         tree: &Tree,
         cursor_position: mouse::Cursor,
     ) -> iced_accessibility::A11yTree {
-        use std::rc::Rc;
-
-        let tree = tree.state.downcast_ref::<Rc<RefCell<Option<Tree>>>>();
-        if let Some(tree) = tree.borrow().as_ref() {
-            self.content.borrow().element.as_widget().a11y_nodes(
-                layout,
-                &tree.children[0],
-                cursor_position,
-            )
-        } else {
-            iced_accessibility::A11yTree::default()
-        }
+        let state = tree.state.downcast_ref::<State>().tree.borrow();
+        self.content.borrow().element.as_widget().a11y_nodes(
+            layout,
+            &*state,
+            cursor_position,
+        )
     }
 
     fn id(&self) -> Option<core::widget::Id> {

widget/src/mouse_area.rs

@@ -355,6 +355,22 @@ where
             );
         }
     }
+
+    fn a11y_nodes(
+        &self,
+        layout: Layout<'_>,
+        state: &Tree,
+        cursor: mouse::Cursor,
+    ) -> iced_accessibility::A11yTree {
+        let c_state = state.children.get(0);
+
+        let ret = self.content.as_widget().a11y_nodes(
+            layout,
+            c_state.unwrap_or(&Tree::empty()),
+            cursor,
+        );
+        return ret;
+    }
 }
 
 impl<'a, Message, Theme, Renderer> From<MouseArea<'a, Message, Theme, Renderer>>