FluentTerminal/FluentTerminal.SystemTray/SystemTrayApplicationContext.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
using Windows.ApplicationModel;
using Windows.ApplicationModel.AppService;
using Windows.ApplicationModel.Core;
using Windows.Foundation.Collections;

namespace FluentTerminal.SystemTray
{
    public class SystemTrayApplicationContext : ApplicationContext
    {
        private AppServiceConnection connection = null;
        private NotifyIcon notifyIcon = null;

        public SystemTrayApplicationContext()

        {
            var openMenuItem = new MenuItem("Open App", new EventHandler(OpenApp));
            var exitMenuItem = new MenuItem("Exit", new EventHandler(Exit));

            openMenuItem.DefaultItem = true;

            notifyIcon = new NotifyIcon();
            notifyIcon.DoubleClick += OpenApp;
            notifyIcon.Text = "Fluent Terminal";
            notifyIcon.Icon = Properties.Resources.Square44x44Logo_scale_100;
            notifyIcon.ContextMenu = new ContextMenu(new MenuItem[] { openMenuItem, exitMenuItem });
            notifyIcon.Visible = true;
        }

        private async void OpenApp(object sender, EventArgs e)
        {
            IEnumerable<AppListEntry> appListEntries = await Package.Current.GetAppListEntriesAsync();
            await appListEntries.First().LaunchAsync();
        }

        private async void Exit(object sender, EventArgs e)

        {
            var message = new ValueSet
            {
                { "exit", string.Empty }
            };
            await SendMessage(message);
            Application.Exit();
        }

        private async Task SendMessage(ValueSet message)

        {
            if (connection == null)
            {
                connection = new AppServiceConnection
                {
                    PackageFamilyName = Package.Current.Id.FamilyName,
                    AppServiceName = "FluentTerminalAppService"
                };
                connection.ServiceClosed += Connection_ServiceClosed;
                AppServiceConnectionStatus connectionStatus = await connection.OpenAsync();

                if (connectionStatus != AppServiceConnectionStatus.Success)
                {
                    MessageBox.Show("Status: " + connectionStatus.ToString());
                    return;
                }
            }
            await connection.SendMessageAsync(message);
        }

        private void Connection_ServiceClosed(AppServiceConnection sender, AppServiceClosedEventArgs args)
        {
            connection.ServiceClosed -= Connection_ServiceClosed;
            connection = null;
        }
    }
}