Add application menu to Tauri app

packages/tauri/src-tauri/src/main.rs

@@ -3,8 +3,23 @@
   windows_subsystem = "windows"
 )]
 
+use crate::menu::AddDefaultSubmenus;
+use tauri::{Menu};
+
+mod menu;
+
 fn main() {
+  let ctx = tauri::generate_context!();
+
   tauri::Builder::default()
-    .run(tauri::generate_context!())
+    .invoke_handler(tauri::generate_handler![])
+    .menu(
+      Menu::new()
+        .add_default_app_submenu_if_macos(&ctx.package_info().name)
+        .add_default_file_submenu()
+        .add_default_edit_submenu()
+        .add_default_window_submenu()
+    )
+    .run(ctx)
     .expect("error while running tauri application");
 }

packages/tauri/src-tauri/src/menu.rs

@@ -0,0 +1,72 @@
+use tauri::{Menu, MenuItem, Submenu};
+
+pub trait AddDefaultSubmenus {
+  fn add_default_app_submenu_if_macos(self, app_name: &str) -> Self;
+  fn add_default_file_submenu(self) -> Self;
+  fn add_default_edit_submenu(self) -> Self;
+  fn add_default_view_submenu(self) -> Self;
+  fn add_default_window_submenu(self) -> Self;
+}
+
+impl AddDefaultSubmenus for Menu {
+  fn add_default_app_submenu_if_macos(self, app_name: &str) -> Menu {
+    #[cfg(target_os = "macos")]
+    return self.add_submenu(Submenu::new(
+      app_name.to_string(),
+      Menu::new()
+        .add_native_item(MenuItem::About(app_name.to_string()))
+        .add_native_item(MenuItem::Separator)
+        .add_native_item(MenuItem::Services)
+        .add_native_item(MenuItem::Separator)
+        .add_native_item(MenuItem::Hide)
+        .add_native_item(MenuItem::HideOthers)
+        .add_native_item(MenuItem::ShowAll)
+        .add_native_item(MenuItem::Separator)
+        .add_native_item(MenuItem::Quit),
+    ));
+    #[cfg(not(target_os = "macos"))]
+    return self;
+  }
+  fn add_default_file_submenu(self) -> Menu {
+    self.add_submenu(Submenu::new(
+      "File",
+      Menu::new().add_native_item(MenuItem::CloseWindow),
+    ))
+  }
+
+  fn add_default_edit_submenu(self) -> Menu {
+    self.add_submenu(Submenu::new("Edit", {
+      let mut menu = Menu::new()
+        .add_native_item(MenuItem::Undo)
+        .add_native_item(MenuItem::Redo)
+        .add_native_item(MenuItem::Separator)
+        .add_native_item(MenuItem::Cut)
+        .add_native_item(MenuItem::Copy)
+        .add_native_item(MenuItem::Paste);
+      #[cfg(not(target_os = "macos"))]
+      {
+        menu = menu.add_native_item(MenuItem::Separator);
+      }
+      menu = menu.add_native_item(MenuItem::SelectAll);
+      // macOS automatically adds "Start Dictation" and "Emoji & Symbols" to
+      // the bottom of the Edit menu
+      menu
+    }))
+  }
+
+  fn add_default_view_submenu(self) -> Menu {
+    self.add_submenu(Submenu::new(
+      "View",
+      Menu::new().add_native_item(MenuItem::EnterFullScreen),
+    ))
+  }
+
+  fn add_default_window_submenu(self) -> Menu {
+    self.add_submenu(Submenu::new(
+      "Window",
+      Menu::new()
+        .add_native_item(MenuItem::Minimize)
+        .add_native_item(MenuItem::Zoom),
+    ))
+  }
+}