Merge pull request #183 from turai/main

Card overlays

src/native/card.rs

@@ -559,6 +559,30 @@ where
             &self.style,
         );
     }
+
+    fn overlay<'b>(
+        &'b mut self,
+        tree: &'b mut Tree,
+        layout: Layout<'_>,
+        renderer: &Renderer,
+    ) -> Option<core::overlay::Element<'b, Message, Renderer>> {
+        let mut children = vec![&mut self.head, &mut self.body];
+        if let Some(foot) = &mut self.foot {
+            children.push(foot);
+        }
+        let children = children
+            .into_iter()
+            .zip(&mut tree.children)
+            .zip(layout.children())
+            .filter_map(|((child, state), layout)| {
+                layout.children().next().and_then(|child_layout| {
+                    child.as_widget_mut().overlay(state, child_layout, renderer)
+                })
+            })
+            .collect::<Vec<_>>();
+
+        (!children.is_empty()).then(|| core::overlay::Group::with_children(children).overlay())
+    }
 }
 
 /// Calculates the layout of the head.