Toggle window zoom/maximize when double clicking titlebar

crates/workspace/src/workspace.rs

@@ -1870,6 +1870,7 @@ impl Workspace {
         };
 
         ConstrainedBox::new(
+            MouseEventHandler::new::<Self, _, _>(0, cx, |_, cx| {
                 Container::new(
                     Stack::new()
                         .with_child(
@@ -1897,6 +1898,13 @@ impl Workspace {
                         .boxed(),
                 )
                 .with_style(container_theme)
+                .boxed()
+            })
+            .on_click(MouseButton::Left, |event, cx| {
+                if event.click_count == 2 {
+                    cx.zoom_window(cx.window_id());
+                }
+            })
             .boxed(),
         )
         .with_height(theme.workspace.titlebar.height)