HearingProtector/App.xaml.cs

using H.NotifyIcon;
using Microsoft.UI.Xaml;
using Microsoft.UI.Xaml.Controls;
using Microsoft.UI.Xaml.Media.Imaging;
using System;
using System.IO;
using System.Reflection;

namespace HearingProtector;

public partial class App : Application
{
    // ← ДОБАВИТЬ: ссылка на единственный экземпляр App
    public static App? CurrentApp { get; private set; }

    public Window? MainWindow { get; private set; }

    private TaskbarIcon? _trayIcon;

    public App()
    {
        CurrentApp = this;         // ← ДОБАВИТЬ до InitializeComponent()
        InitializeComponent();
    }

    public static string Version { get; private set; } = "?";

    protected override void OnLaunched(LaunchActivatedEventArgs args)
    {
        Version = typeof(App).Assembly
            .GetCustomAttribute<AssemblyInformationalVersionAttribute>()?
            .InformationalVersion ?? "?";

        MainWindow = new MainWindow();

        var openItem = new MenuFlyoutItem
        {
            Text = "Открыть",
            Command = new RelayCommand(OpenFromTray)
        };

        var exitItem = new MenuFlyoutItem
        {
            Text = "Выход",
            Command = new RelayCommand(ExitApp)
        };

        var menu = new MenuFlyout();
        menu.Items.Add(openItem);
        menu.Items.Add(new MenuFlyoutSeparator());
        menu.Items.Add(exitItem);

        _trayIcon = new TaskbarIcon
        {
            ToolTipText = $"Hearing Protector v{Version}",
            IconSource = new BitmapImage(new Uri(
                Path.Combine(AppContext.BaseDirectory, "Assets", "app.ico"))),
            ContextFlyout = menu,
            MenuActivation = H.NotifyIcon.Core.PopupActivationMode.RightClick,
            NoLeftClickDelay = true,
            DoubleClickCommand = new RelayCommand(OpenFromTray)
        };

        _trayIcon.ForceCreate();

        MainWindow.Activate();
    }

    private void OpenFromTray()
    {
        MainWindow?.DispatcherQueue.TryEnqueue(() =>
        {
            (MainWindow as MainWindow)?.RestoreFromTray();
        });
    }

    private void ExitApp()
    {
        MainWindow?.DispatcherQueue.TryEnqueue(() =>
        {
            if (MainWindow is MainWindow mw)
                mw.ReadyToClose = true;

            _trayIcon?.Dispose();
            _trayIcon = null;

            Exit();
        });
    }
}