Initial code

WindowSource.cs

@@ -0,0 +1,122 @@
+using ChrisKaczor.Wpf.Windows.FloatingStatusWindow;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Text.Json;
+using System.Timers;
+using System.Windows.Threading;
+
+namespace WorldClockStatusWindow;
+
+internal class WindowSource : IWindowSource, IDisposable
+{
+    private readonly FloatingStatusWindow _floatingStatusWindow;
+    private readonly Timer _timer;
+    private readonly Dispatcher _dispatcher;
+
+    private List<TimeZoneEntry> _timeZoneEntries;
+
+    internal WindowSource()
+    {
+        _floatingStatusWindow = new FloatingStatusWindow(this);
+        _floatingStatusWindow.SetText("Loading...");
+
+        _dispatcher = Dispatcher.CurrentDispatcher;
+
+        Load();
+
+        _timer = new Timer(1000);
+        _timer.Elapsed += HandleTimerElapsed;
+        _timer.Enabled = true;
+    }
+
+    private void Load()
+    {
+        _timeZoneEntries = JsonSerializer.Deserialize<List<TimeZoneEntry>>(Properties.Settings.Default.TimeZones);
+
+        if (_timeZoneEntries.Any())
+            return;
+
+        _timeZoneEntries.Add(new TimeZoneEntry { Label = "UTC", TimeZoneId = "UTC" });
+        _timeZoneEntries.Add(new TimeZoneEntry { Label = "IST", TimeZoneId = "India Standard Time" });
+        _timeZoneEntries.Add(new TimeZoneEntry { Label = "CET", TimeZoneId = "Central Europe Standard Time" });
+        _timeZoneEntries.Add(new TimeZoneEntry { Label = "Local", TimeZoneId = string.Empty });
+
+        Save();
+    }
+
+    private void Save()
+    {
+        Properties.Settings.Default.TimeZones = JsonSerializer.Serialize(_timeZoneEntries);
+        Properties.Settings.Default.Save();
+    }
+
+    private void HandleTimerElapsed(object sender, ElapsedEventArgs e)
+    {
+        var text = new StringBuilder();
+
+        var now = DateTimeOffset.Now;
+
+        var labelLength = _timeZoneEntries.Max(x => x.Label.Length);
+
+        foreach (var timeZoneEntry in _timeZoneEntries)
+        {
+            var timeZone = timeZoneEntry.TimeZoneId == string.Empty ? TimeZoneInfo.Local : TimeZoneInfo.FindSystemTimeZoneById(timeZoneEntry.TimeZoneId);
+
+            if (text.Length > 0)
+                text.AppendLine();
+
+            text.Append($"{timeZoneEntry.Label.PadLeft(labelLength)}: {TimeZoneInfo.ConvertTime(now, timeZone).ToString(Properties.Settings.Default.TimeFormat)}");
+        }
+
+        _dispatcher.InvokeAsync(() => _floatingStatusWindow.SetText(text.ToString()));
+    }
+
+    public void Dispose()
+    {
+        _timer.Enabled = false;
+        _timer.Dispose();
+
+        _floatingStatusWindow.Save();
+        _floatingStatusWindow.Dispose();
+    }
+
+    public Guid Id => Guid.Parse("29DF6CFD-6783-406F-AE12-4723EB7741EA");
+
+    public string Name => "World Clock";
+
+    public System.Drawing.Icon Icon => Properties.Resources.ApplicationIcon;
+
+    public bool HasSettingsMenu => true;
+
+    public bool HasAboutMenu => false;
+
+    public void ShowAbout()
+    {
+        _floatingStatusWindow.SetText(Assembly.GetEntryAssembly()!.GetName().Version!.ToString());
+    }
+
+    public void ShowSettings()
+    {
+
+        Save();
+    }
+
+    public bool HasRefreshMenu => false;
+
+    public void Refresh()
+    {
+    }
+
+    public string WindowSettings
+    {
+        get => Properties.Settings.Default.WindowSettings;
+        set
+        {
+            Properties.Settings.Default.WindowSettings = value;
+            Properties.Settings.Default.Save();
+        }
+    }
+}