Add project files.

Framework/Core/Templates/TemplateFactory.cs

@@ -0,0 +1,42 @@
+using System.Diagnostics.CodeAnalysis;
+
+namespace TheXamlGuy.Framework.Core;
+
+public class TemplateFactory : ITemplateFactory
+{
+    private readonly Dictionary<object, object> dataTracking = new();
+
+    private readonly ITemplateDescriptorProvider provider;
+    private readonly IServiceFactory serviceFactory;
+
+    public TemplateFactory(ITemplateDescriptorProvider provider,
+        IServiceFactory serviceFactory)
+    {
+        this.provider = provider;
+        this.serviceFactory = serviceFactory;
+    }
+
+    public virtual object? Create([MaybeNull] object? data)
+    {
+        if (data is null)
+        {
+            return null;
+        }
+
+        if (dataTracking.TryGetValue(data, out object? template))
+        {
+            return template;
+        }
+
+        if (provider.Get(data.GetType()) is ITemplateDescriptor descriptor)
+        {
+            template = serviceFactory.Get<object>(descriptor.TemplateType);
+            if (template is ICachable cachable)
+            {
+                dataTracking[data] = cachable;
+            }
+        }
+
+        return template;
+    }
+}