Add Content lookup markupextension

Framework/Foundation/Contents/NamedContentTemplateFactory.cs

@@ -0,0 +1,40 @@
+namespace Toolkit.Framework.Foundation;
+
+public class NamedContentTemplateFactory : INamedContentTemplateFactory
+{
+    private readonly Dictionary<string, object> cache = new();
+
+    private readonly IContentTemplateDescriptorProvider provider;
+    private readonly IServiceFactory serviceFactory;
+
+    public NamedContentTemplateFactory(IContentTemplateDescriptorProvider provider,
+        IServiceFactory serviceFactory)
+    {
+        this.provider = provider;
+        this.serviceFactory = serviceFactory;
+    }
+
+    public virtual object? Create(string name)
+    {
+        if (cache.TryGetValue(name, out object? view))
+        {
+            return view;
+        }
+
+        if (provider.Get(name) is IContentTemplateDescriptor descriptor)
+        {
+            view = serviceFactory.Create(descriptor.TemplateType);
+            if (view is ICache cache)
+            {
+                this.cache[name] = cache;
+            }
+
+            if (descriptor.GetType().GenericTypeArguments is { Length: 2 })
+            {
+                (descriptor as dynamic).ViewInvoker?.Invoke(view);
+            }
+        }
+
+        return view;
+    }
+}