Created a window manager that will automatically locate the matching view to a view model and set up the view's data context for binding; also added an interface through which other services can track the active window (i.e. to display message boxes so view models don't have to drag around a view reference just for that)

git-svn-id: file:///srv/devel/repo-conversion/nuwi@43 d2e56fa2-650e-0410-a79f-9358c0239efd

Source/IActiveWindowTracker.cs

@@ -0,0 +1,38 @@
+#region CPL License
+/*
+Nuclex Framework
+Copyright (C) 2002-2019 Nuclex Development Labs
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the IBM Common Public License as
+published by the IBM Corporation; either version 1.0 of the
+License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+IBM Common Public License for more details.
+
+You should have received a copy of the IBM Common Public
+License along with this library
+*/
+#endregion
+
+using System;
+using System.Windows.Forms;
+
+namespace Nuclex.Windows.Forms {
+
+  /// <summary>Enables consumer to look up the currently active window</summary>
+  public interface IActiveWindowTracker {
+
+    /// <summary>The currently active top-level or modal window</summary>
+    /// <remarks>
+    ///   If windows live in multiple threads, the property change notification for
+    ///   this property, if supported, might be fired from a different thread.
+    /// </remarks>
+    Form ActiveWindow { get; }
+
+  }
+
+} // namespace Nuclex.Windows.Forms