Add workspace control buttons and align text style

New Pause, Resume, and Step buttons have been added to the Wolder Interactive Web project for workspace control. The text in the 'main' selector of MainLayout.razor.css was aligned to the center. Workflow event handling improvements were also made in the Web and Core projects.

src/Wolder.Core/Workspace/Events/WorkspaceStateDelegateDispatcher.cs

@@ -12,6 +12,9 @@ public WorkspaceStateEventDispatcher()
             WorkspaceInitializedAsync = async () =>
                 await Task.WhenAll(Delegates.Select(d =>
                     d.WorkspaceInitializedAsync())),
+            WorkspaceRunEndAsync = async () =>
+                await Task.WhenAll(Delegates.Select(d =>
+                    d.WorkspaceRunEndAsync())),
             InvocationBeginAsync = async (c) => 
                 await Task.WhenAll(Delegates.Select(d =>
                     d.InvocationBeginAsync(c))),

src/Wolder.Core/Workspace/Events/WorkspaceStateEvents.cs

@@ -3,6 +3,7 @@
 public class WorkspaceStateEvents
 {
     public Func<Task> WorkspaceInitializedAsync { get; set; } = () => Task.CompletedTask;
+    public Func<Task> WorkspaceRunEndAsync { get; set; } = () => Task.CompletedTask;
     public Func<InvocationBeginContext, Task> InvocationBeginAsync { get; set; } = (c) => Task.CompletedTask;
     public Func<InvocationEndContext, Task> InvocationEndAsync { get; set; } = (c) => Task.CompletedTask;
 }

src/Wolder.Core/Workspace/GeneratorWorkspaceBuilder.cs

@@ -51,5 +51,6 @@ public async Task BuildWorkspaceAndRunAsync<TRootAction>(string rootPath)
         await EventDispatcher.Events.WorkspaceInitializedAsync();
         var invokeRootAction = serviceProvider.GetRequiredService<IInvoke>();
         await invokeRootAction.InvokeVoidAsync<TRootAction>();
+        await EventDispatcher.Events.WorkspaceRunEndAsync();
     }
 }

src/Wolder.Interactive.Web/Components/Index.razor

@@ -1,6 +1,18 @@
 @page "/"
+@using Wolder.Interactive.Web.Services
+
+@inject WorkspaceStateManager WorkspaceStateManager;
+
+@rendermode InteractiveServer
+
 <h3>Wolder Interactive</h3>
 
+<div>
+    <button @onclick="WorkspaceStateManager.Pause">Pause</button>
+    <button @onclick="WorkspaceStateManager.Resume">Resume</button>
+    <button @onclick="WorkspaceStateManager.Step">Step</button>
+</div>
+
 @code {
 
 }

src/Wolder.Interactive.Web/Components/Layout/MainLayout.razor.css

@@ -1,4 +1,5 @@
 
 main {
     font-family: monospace;
+    text-align: center;
 }

src/Wolder.Interactive.Web/Services/WorkspaceStateManager.cs

@@ -12,6 +12,7 @@ public WorkspaceStateManager()
         Events = new()
         {
             WorkspaceInitializedAsync = WorkspaceInitializedAsync,
+            WorkspaceRunEndAsync = WorkspaceRunEndAsync,
             InvocationBeginAsync = InvocationBeginAsync,
             InvocationEndAsync = InvocationEndAsync,
         };
@@ -50,6 +51,12 @@ private async Task InvocationBeginAsync(InvocationBeginContext c)
         InvocationBegin?.Invoke(new InvocationDetail(c.Invokable.GetType().Name));
         await _proceedWhenUnpaused.Task;
     }
+
+    private async Task WorkspaceRunEndAsync()
+    {
+        Pause();
+        await _proceedWhenUnpaused.Task;
+    }
 
     private Task InvocationEndAsync(InvocationEndContext c)
     {

src/Wolder.Interactive.Web/SetupExtensions.cs

@@ -9,7 +9,7 @@ public static GeneratorWorkspaceBuilder AddInteractiveWebServer(this GeneratorWo
     {
         var server = new WorkspaceInteractiveWebHost();
         builder.Services.AddSingleton(server);
-        builder.EventDispatcher.Delegates.Add(server.WorkspaceStateNotifications.Events);
+        builder.EventDispatcher.Delegates.Add(server.WorkspaceStateManager.Events);
         return builder;
     }
 }

src/Wolder.Interactive.Web/WorkspaceInteractiveWebHost.cs

@@ -11,13 +11,13 @@ public class WorkspaceInteractiveWebHost
 
     public WorkspaceInteractiveWebHost()
     {
-        WorkspaceStateNotifications.WorkspaceInitialized += () =>
+        WorkspaceStateManager.WorkspaceInitialized += () =>
         {
             _serverInitializeTask = StartAsync();
         };
     }
 
-    public WorkspaceStateManager WorkspaceStateNotifications { get; } = new();
+    public WorkspaceStateManager WorkspaceStateManager { get; } = new();
 
     private async Task StartAsync()
     {
@@ -32,6 +32,8 @@ private async Task StartAsync()
             ApplicationName = "Wolder.Interactive.Web"
         });
 
+        webBuilder.Services.AddSingleton(WorkspaceStateManager);
+
         // Add services to the container.
         webBuilder.Services.AddRazorComponents()
             .AddInteractiveServerComponents();