Tauri v2 — Tray, Menus, and Menu-Bar Windows

Covers the three menu surfaces in Tauri v2:

1. Tray icon — tauri::tray::TrayIconBuilder (status-bar/notification-area icon).
2. App/window menu — app.set_menu(...) (macOS menu bar; Windows/Linux per-window menu).
3. Context menus — menu.popup(window) triggered from JS.

Plus the menu-bar-app pattern (tray icon + popover window anchored under it via tauri-plugin-positioner).

---

1. Cargo features

Tray support is gated behind a feature flag. Without it, tauri::tray::* won’t compile.

# src-tauri/Cargo.toml
[dependencies]
tauri = { version = "2", features = ["tray-icon"] }
# Add "image-png" if you embed PNG menu icons via Image::from_bytes

For tray-relative window positioning:

tauri-plugin-positioner = { version = "2", features = ["tray-icon"] }

npm install @tauri-apps/plugin-positioner   # only if you call moveWindow from JS

---

2. Build a tray icon

All tray construction happens inside .setup(|app| { ... }). The returned TrayIcon can be dropped — Tauri keeps it alive internally — but keep the handle if you need to update the icon/menu later.

use tauri::{
  menu::{Menu, MenuItem},
  tray::TrayIconBuilder,
};

tauri::Builder::default()
  .setup(|app| {
    let quit_i = MenuItem::with_id(app, "quit", "Quit", true, None::<&str>)?;
    let menu   = Menu::with_items(app, &[&quit_i])?;

    let _tray = TrayIconBuilder::new()
      .icon(app.default_window_icon().unwrap().clone())
      .menu(&menu)
      .show_menu_on_left_click(false)   // we want left-click to toggle the window
      .on_menu_event(|app, event| match event.id.as_ref() {
        "quit" => app.exit(0),
        _      => {}
      })
      .on_tray_icon_event(|tray, event| {
        // see §5 for click pattern matching
      })
      .build(app)?;

    Ok(())
  });

Notes:

• TrayIconBuilder::with_id("my-tray") if you’ll look it up later via app.tray_by_id.
• show_menu_on_left_click(true) is the default — disable it for menu-bar popover apps so left-click can toggle a window instead.

---

3. Menus — items, predefined, submenus, icons, checks

tauri::menu has two flavours: low-level constructors (Menu::with_items, MenuItem::with_id) and ergonomic builders (MenuBuilder, SubmenuBuilder). Mix freely.

Items

Type	Use
MenuItem	plain text item with an id
PredefinedMenuItem	OS-standard items (copy, paste, quit, separator, select_all, undo, redo, about, services, hide, close_window, …)
CheckMenuItem	toggle with checkmark
IconMenuItem	item with a leading icon
Submenu	nests items

Builder example (typical app menu)

use tauri::menu::{MenuBuilder, SubmenuBuilder, PredefinedMenuItem};

let edit = SubmenuBuilder::new(app, "Edit")
  .undo().redo().separator()
  .cut().copy().paste().select_all()
  .build()?;

let menu = MenuBuilder::new(app)
  .item(&edit)
  .text("open", "Open…")
  .check("auto_update", "Check for updates")
  .separator()
  .item(&PredefinedMenuItem::quit(app, None)?)
  .build()?;

app.set_menu(menu)?;

app.set_menu(menu) puts the menu in the macOS menu bar (system-wide for the app) or, on Windows/Linux, into the window chrome. Per-window menus: window.set_menu(...).

Handling events

app.on_menu_event(|app, event| match event.id().0.as_str() {
  "open"        => { /* … */ }
  "auto_update" => { /* … */ }
  _             => {}
});

When attached to a tray, use TrayIconBuilder::on_menu_event instead — it fires for clicks on tray menu items specifically.

---

4. Dynamic updates

Hold MenuItem / CheckMenuItem / IconMenuItem handles in your setup closure (or in app state) and mutate them in place:

let status = MenuItem::with_id(app, "status", "Status: idle", false, None::<&str>)?;
// ... later, from anywhere with a clone of `status` ...
status.set_text("Status: running")?;
status.set_enabled(true)?;

Other setters: set_checked, set_icon, set_accelerator, set_native_icon.

To look an item up after the fact:

menu.get("status").unwrap().as_menuitem_unchecked().set_text("Status: ready")?;

For long-lived state, stash handles in app.manage(MyMenuState { status, ... }) and pull them out in commands via tauri::State<MyMenuState>.

---

5. Tray click events — left vs right

TrayIconEvent variants: Click { button, button_state, position, rect, .. }, DoubleClick, Enter, Move, Leave. Buttons: MouseButton::{Left,Right,Middle}. States: MouseButtonState::{Up,Down}.

Match on button_state: Up to fire on release (matches OS conventions).

use tauri::{
  Manager,
  tray::{MouseButton, MouseButtonState, TrayIconEvent},
};

.on_tray_icon_event(|tray, event| match event {
  TrayIconEvent::Click {
    button: MouseButton::Left,
    button_state: MouseButtonState::Up,
    ..
  } => {
    let app = tray.app_handle();
    if let Some(win) = app.get_webview_window("main") {
      let _ = win.show();
      let _ = win.set_focus();
    }
  }
  _ => {}
})

On macOS, right-click is intercepted automatically when a menu is attached and show_menu_on_left_click(false) is set — you don’t need to handle it manually.

---

6. Context menus from JS

To pop a menu from a frontend click (e.g. on right-click of an element):

#[tauri::command]
fn show_context_menu(window: tauri::WebviewWindow) -> tauri::Result<()> {
  let menu = tauri::menu::MenuBuilder::new(&window)
    .text("rename", "Rename")
    .text("delete", "Delete")
    .build()?;
  menu.popup(window.clone())?;
  Ok(())
}

import { invoke } from '@tauri-apps/api/core';
element.addEventListener('contextmenu', (e) => {
  e.preventDefault();
  invoke('show_context_menu');
});

popup(window) shows it at the cursor; popup_at(window, position) for a specific point.

---

7. Menu-bar app — anchor a window to the tray

This is the killer pattern for macOS-style menu-bar apps (popover under the tray icon). The tauri-plugin-positioner plugin computes tray coordinates so you don’t have to.

Capabilities

src-tauri/capabilities/default.json:

{ "permissions": ["positioner:default"] }

Wire it in setup

use tauri_plugin_positioner::{Position, WindowExt};

app.handle().plugin(tauri_plugin_positioner::init());

let tray = TrayIconBuilder::new()
  .on_tray_icon_event(|tray, event| {
    // Plugin uses this to remember the last-known tray rect.
    tauri_plugin_positioner::on_tray_event(tray.app_handle(), &event);
  })
  .build(app)?;

Move the window on click

TrayIconEvent::Click { button: MouseButton::Left, button_state: MouseButtonState::Up, .. } => {
  let app = tray.app_handle();
  if let Some(win) = app.get_webview_window("popover") {
    let _ = win.move_window(Position::TrayCenter);  // or TrayLeft, TrayRight, …
    let _ = win.show();
    let _ = win.set_focus();
  }
}

Useful Position variants: TrayLeft, TrayCenter, TrayRight, TrayBottomLeft, TrayBottomCenter, TrayBottomRight, plus screen-relative TopRight, BottomLeft, etc.

In tauri.conf.json, configure the popover window:

{ "label": "popover", "decorations": false, "transparent": true,
  "alwaysOnTop": true, "skipTaskbar": true, "visible": false,
  "width": 360, "height": 480 }

Hide on blur so it dismisses like a real menu-bar popover (listen for WindowEvent::Focused(false)).

---

8. Templates

• templates/tray.rs — full menu-bar-app pattern: tray icon + popover toggle on left-click + Quit menu item + positioner.
• templates/capabilities-tray.json — the positioner permission stanza.

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Quick checklist

• tray-icon feature in Cargo.toml.
• Tray built inside .setup(...).
• show_menu_on_left_click(false) if left-click should toggle a window.
• Use button_state: MouseButtonState::Up in click matches.
• Stash mutable MenuItem handles for set_text / set_enabled later.
• For tray-relative window: install tauri-plugin-positioner with the tray-icon feature, add positioner:default permission, and call tauri_plugin_positioner::on_tray_event from on_tray_icon_event.