Draft conversion::menu_message in iced_winit

... and wire it up to the runtime loop

glutin/src/application.rs

@@ -306,6 +306,16 @@ async fn run_instance<A, E, C>(
                 // TODO: Handle animations!
                 // Maybe we can use `ControlFlow::WaitUntil` for this.
             }
+            event::Event::WindowEvent {
+                event: event::WindowEvent::MenuEntryActivated(entry_id),
+                ..
+            } => {
+                if let Some(message) =
+                    conversion::menu_message(state.menu(), entry_id)
+                {
+                    messages.push(message);
+                }
+            }
             event::Event::WindowEvent {
                 event: window_event,
                 ..

winit/src/application.rs

@@ -386,6 +386,16 @@ async fn run_instance<A, E, C>(
                 // TODO: Handle animations!
                 // Maybe we can use `ControlFlow::WaitUntil` for this.
             }
+            event::Event::WindowEvent {
+                event: event::WindowEvent::MenuEntryActivated(entry_id),
+                ..
+            } => {
+                if let Some(message) =
+                    conversion::menu_message(state.menu(), entry_id)
+                {
+                    messages.push(message);
+                }
+            }
             event::Event::WindowEvent {
                 event: window_event,
                 ..

winit/src/conversion.rs

@@ -215,6 +215,17 @@ pub fn menu<Message>(menu: &Menu<Message>) -> winit::window::Menu {
     converted
 }
 
+/// Given a [`Menu`] and an identifier of a [`menu::Entry`], it returns the
+/// `Message` that should be produced when that entry is activated.
+pub fn menu_message<Message>(
+    _menu: &Menu<Message>,
+    id: isize,
+) -> Option<Message> {
+    println!("Menu entry activated: {}", id);
+
+    None
+}
+
 /// Converts a `MouseCursor` from [`iced_native`] to a [`winit`] cursor icon.
 ///
 /// [`winit`]: https://github.com/rust-windowing/winit