New startup window.

Wino.Mail.WinUI/Services/WinoWindowManager.cs

@@ -0,0 +1,235 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Controls;
+using WinUIEx;
+using Wino.Mail.WinUI.Interfaces;
+using Wino.Mail.WinUI.Models;
+
+namespace Wino.Mail.WinUI.Services;
+
+public class WinoWindowManager : IWinoWindowManager
+{
+    public event EventHandler<WindowEx?>? ActiveWindowChanged;
+    public event EventHandler<WindowEx>? WindowRemoved;
+
+    private readonly object _syncLock = new();
+    private readonly Dictionary<(WinoWindowKind Kind, string Name), WindowEx> _windows = [];
+    private readonly Dictionary<WindowEx, (WinoWindowKind Kind, string Name)> _windowKeys = [];
+    private readonly Dictionary<(WinoWindowKind Kind, string Name), Frame> _primaryNavigationFrames = [];
+
+    public WindowEx? ActiveWindow { get; private set; }
+
+    public WindowEx CreateWindow(WinoWindowKind kind, Func<WindowEx> factory, string? name = null)
+    {
+        var key = CreateKey(kind, name);
+
+        lock (_syncLock)
+        {
+            if (_windows.TryGetValue(key, out var existingWindow))
+            {
+                ActiveWindow = existingWindow;
+                ActiveWindowChanged?.Invoke(this, existingWindow);
+                return existingWindow;
+            }
+        }
+
+        var newWindow = factory();
+
+        lock (_syncLock)
+        {
+            if (_windows.TryGetValue(key, out var existingWindow))
+            {
+                ActiveWindow = existingWindow;
+                ActiveWindowChanged?.Invoke(this, existingWindow);
+                return existingWindow;
+            }
+
+            TrackWindow(key, newWindow);
+            ActiveWindow = newWindow;
+            ActiveWindowChanged?.Invoke(this, newWindow);
+            return newWindow;
+        }
+    }
+
+    public WindowEx? GetWindow(WinoWindowKind kind, string? name = null)
+    {
+        lock (_syncLock)
+        {
+            _windows.TryGetValue(CreateKey(kind, name), out var window);
+            return window;
+        }
+    }
+
+    public WindowEx? GetWindow(string name)
+    {
+        var normalizedName = NormalizeName(name);
+
+        lock (_syncLock)
+        {
+            return _windows
+                .Where(x => x.Key.Name.Equals(normalizedName, StringComparison.OrdinalIgnoreCase))
+                .Select(x => x.Value)
+                .FirstOrDefault();
+        }
+    }
+
+    public void ActivateWindow(WindowEx window)
+    {
+        window.Show();
+        window.BringToFront();
+        window.Activate();
+
+        lock (_syncLock)
+        {
+            ActiveWindow = window;
+        }
+
+        ActiveWindowChanged?.Invoke(this, window);
+    }
+
+    public bool ActivateWindow(WinoWindowKind kind, string? name = null)
+    {
+        var window = GetWindow(kind, name);
+        if (window == null)
+            return false;
+
+        ActivateWindow(window);
+        return true;
+    }
+
+    public void HideWindow(WindowEx window)
+    {
+        window.Hide();
+
+        lock (_syncLock)
+        {
+            if (ReferenceEquals(ActiveWindow, window))
+            {
+                ActiveWindow = null;
+                ActiveWindowChanged?.Invoke(this, null);
+            }
+        }
+    }
+
+    public bool HideWindow(WinoWindowKind kind, string? name = null)
+    {
+        var window = GetWindow(kind, name);
+        if (window == null)
+            return false;
+
+        HideWindow(window);
+        return true;
+    }
+
+    public void SetPrimaryNavigationFrame(WinoWindowKind kind, Frame frame, string? name = null)
+    {
+        lock (_syncLock)
+        {
+            _primaryNavigationFrames[CreateKey(kind, name)] = frame;
+        }
+    }
+
+    public Frame? GetPrimaryNavigationFrame(WinoWindowKind kind, string? name = null)
+    {
+        lock (_syncLock)
+        {
+            _primaryNavigationFrames.TryGetValue(CreateKey(kind, name), out var frame);
+            return frame;
+        }
+    }
+
+    private void TrackWindow((WinoWindowKind Kind, string Name) key, WindowEx window)
+    {
+        _windows[key] = window;
+        _windowKeys[window] = key;
+        window.Activated += WindowActivated;
+        window.Closed += WindowClosed;
+    }
+
+    private void WindowActivated(object sender, WindowActivatedEventArgs args)
+    {
+        if (sender is not WindowEx window)
+            return;
+
+        if (args.WindowActivationState == WindowActivationState.Deactivated)
+            return;
+
+        lock (_syncLock)
+        {
+            if (_windowKeys.ContainsKey(window))
+            {
+                ActiveWindow = window;
+                ActiveWindowChanged?.Invoke(this, window);
+            }
+        }
+    }
+
+    private void WindowClosed(object sender, WindowEventArgs args)
+    {
+        if (sender is not WindowEx window)
+            return;
+
+        lock (_syncLock)
+        {
+            if (!_windowKeys.TryGetValue(window, out var key))
+                return;
+
+            window.Activated -= WindowActivated;
+            window.Closed -= WindowClosed;
+
+            _windowKeys.Remove(window);
+            _windows.Remove(key);
+            _primaryNavigationFrames.Remove(key);
+            WindowRemoved?.Invoke(this, window);
+
+            if (ReferenceEquals(ActiveWindow, window))
+            {
+                ActiveWindow = null;
+                ActiveWindowChanged?.Invoke(this, null);
+            }
+        }
+    }
+
+    public void CloseAllWindows()
+    {
+        List<WindowEx> windows;
+        lock (_syncLock)
+        {
+            windows = _windows.Values.Distinct().ToList();
+        }
+
+        foreach (var window in windows)
+        {
+            try
+            {
+                window.Activated -= WindowActivated;
+                window.Closed -= WindowClosed;
+                window.Close();
+            }
+            catch
+            {
+                // Best effort shutdown for all tracked windows.
+            }
+        }
+
+        lock (_syncLock)
+        {
+            _windowKeys.Clear();
+            _windows.Clear();
+            _primaryNavigationFrames.Clear();
+            ActiveWindow = null;
+        }
+
+        ActiveWindowChanged?.Invoke(this, null);
+    }
+
+    private static (WinoWindowKind Kind, string Name) CreateKey(WinoWindowKind kind, string? name)
+    {
+        var resolvedName = NormalizeName(name ?? kind.ToString());
+        return (kind, string.IsNullOrWhiteSpace(resolvedName) ? kind.ToString() : resolvedName);
+    }
+
+    private static string NormalizeName(string name) => name.Trim();
+}