Fix tray icon tooltip not displaying on macOS 15+ (Sequoia)

[Copilot]

Description

macOS 15 (Sequoia) changed NSStatusItem tooltip behavior—tooltips must now be set on NSStatusItem.button instead of the NSStatusItem itself. Qt's QSystemTrayIcon::setToolTip() doesn't handle this, causing tooltips to not appear.

Changes

• src/gui/systray.h: Override setToolTip() to dispatch to platform-specific implementation
• src/gui/systray.cpp: Route macOS calls to native handler, other platforms use Qt directly
• src/gui/systray_mac_common.mm: Implement workaround using Objective-C runtime introspection
  • Access Qt's internal QCocoaSystemTrayIcon via class_copyIvarList/object_getIvar
  • Set tooltip on NSStatusItem.button.toolTip directly
  • Guard with @available(macOS 15.0, *) check
  • Fallback gracefully if introspection fails

// In setTrayIconToolTip():
trayIcon->QSystemTrayIcon::setToolTip(toolTip);  // Call base for compatibility

if (@available(macOS 15.0, *)) {
    // Find NSStatusItem via runtime introspection of Qt's internal object
    NSStatusItem *statusItem = /* ... */;
    statusItem.button.toolTip = toolTip.toNSString();  // Required for macOS 15+
}

Backward compatible with older macOS versions. No impact on Linux/Windows.

Testing

Requires macOS 15+ hardware. See MACOS_TOOLTIP_FIX.md for test cases.

Original prompt

the tray icon in macos always had a hover message to show the sync status of the accounts.
in the current release it is not working anymore. nothing is shown.

This is the case since macOS 26

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.