Connected.Components.Showcase/App.razor

@@ -0,0 +1,12 @@
+<Router AppAssembly="@typeof(App).Assembly">
+    <Found Context="routeData">
+        <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
+        <FocusOnNavigate RouteData="@routeData" Selector="h1" />
+    </Found>
+    <NotFound>
+        <PageTitle>Not found</PageTitle>
+        <LayoutView Layout="@typeof(MainLayout)">
+            <p role="alert">Sorry, there's nothing at this address.</p>
+        </LayoutView>
+    </NotFound>
+</Router>

Connected.Components.Showcase/Connected.Components.Showcase.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk.Razor">
+<Project Sdk="Microsoft.NET.Sdk.BlazorWebAssembly">
 
   <PropertyGroup>
     <TargetFramework>net7.0</TargetFramework>
@@ -7,8 +7,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="7.0.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly" Version="7.0.0-rc.2.22476.2" />
-    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="7.0.0" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.AspNetCore.Components.WebAssembly.DevServer" Version="7.0.0-rc.2.22476.2" PrivateAssets="all" />
   </ItemGroup>
 
 </Project>

Connected.Components.Showcase/Program.cs

@@ -0,0 +1,11 @@
+using Connected.Components.Showcase;
+using Microsoft.AspNetCore.Components.Web;
+using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
+
+var builder = WebAssemblyHostBuilder.CreateDefault(args);
+builder.RootComponents.Add<App>("#app");
+builder.RootComponents.Add<HeadOutlet>("head::after");
+
+builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });
+
+await builder.Build().RunAsync();

Connected.Components/Layouts/DefaultLayout.razor

@@ -0,0 +1,9 @@
+@inherits LayoutComponentBase
+
+<HeadContent>
+	<link rel="stylesheet" href="_content/Connected.UI/Components.min.css" />
+	<link rel="stylesheet" href="_content/Connected.UI/Styles.min.css" />
+</HeadContent>
+
+
+@Body

Connected.Components/Middleware/ComponentMiddlewareService.cs

@@ -0,0 +1,42 @@
+using System.Collections.Concurrent;
+
+namespace Connected.Middleware;
+
+internal class ComponentMiddlewareService : IComponentMiddlewareService
+{
+	public ComponentMiddlewareService()
+	{
+		Middleware = new();
+	}
+
+	private ConcurrentDictionary<string, List<Type>> Middleware { get; }
+
+	public void Add<TMiddleware, TComponent>()
+	{
+		var componentName = typeof(TComponent).FullName;
+
+		if (string.IsNullOrEmpty(componentName))
+			throw new ArgumentException(null, nameof(TMiddleware));
+
+		if (Middleware.TryGetValue(componentName, out List<Type>? items))
+		{
+			//TODO: sort by priority so multiple inheritance would work 
+			items.Add(typeof(TMiddleware));
+		}
+		else
+			Middleware.TryAdd(componentName, new List<Type> { typeof(TMiddleware) });
+	}
+
+	public Type? Select<TComponent>()
+	{
+		var typeName = typeof(TComponent).FullName;
+
+		if (string.IsNullOrEmpty(typeName))
+			throw new ArgumentException(null, nameof(TComponent));
+
+		if (Middleware.TryGetValue(typeName, out List<Type>? items) && items is not null && items.Any())
+			return items[0];
+
+		return null;
+	}
+}

Connected.Components/Middleware/IComponentMiddlewareService.cs

@@ -0,0 +1,8 @@
+namespace Connected.Middleware;
+
+public interface IComponentMiddlewareService
+{
+	void Add<TMiddleware, TComponent>();
+
+	Type? Select<TComponent>();
+}