Fix reconnection

Author: javiercn

src/Components/Web.JS/dist/Release/blazor.server.js

@@ -96,7 +96,7 @@ async function initializeConnection(options: BlazorOptions, logger: Logger, circ
   connection.on('JS.BeginInvokeJS', DotNet.jsCallDispatcher.beginInvokeJSFromDotNet);
   connection.on('JS.EndInvokeDotNet', (args: string) => DotNet.jsCallDispatcher.endInvokeDotNetFromJS(...(JSON.parse(args) as [string, boolean, unknown])));
 
-  const renderQueue = new RenderQueue(/* renderer ID unused with remote renderer */ 0, logger);
+  const renderQueue = RenderQueue.getOrCreate(logger);
   connection.on('JS.RenderBatch', (batchId: number, batchData: Uint8Array) => {
     logger.log(LogLevel.Debug, `Received render batch with id ${batchId} and ${batchData.byteLength} bytes.`);
     renderQueue.processBatch(batchId, batchData, connection);

src/Components/Web.JS/src/Boot.Server.ts

@@ -4,6 +4,8 @@ import { Logger, LogLevel } from '../Logging/Logger';
 import { HubConnection } from '@aspnet/signalr';
 
 export class RenderQueue {
+  private static instance: RenderQueue;
+
   private nextBatchId = 2;
 
   private fatalError?: string;
@@ -17,6 +19,14 @@ export class RenderQueue {
     this.logger = logger;
   }
 
+  public static getOrCreate(logger: Logger): RenderQueue {
+    if (!RenderQueue.instance) {
+      RenderQueue.instance = new RenderQueue(0, logger);
+    }
+
+    return this.instance;
+  }
+
   public async processBatch(receivedBatchId: number, batchData: Uint8Array, connection: HubConnection): Promise<void> {
     if (receivedBatchId < this.nextBatchId) {
       // SignalR delivers messages in order, but it does not guarantee that the message gets delivered.

src/Components/Web.JS/src/Platform/Circuits/RenderQueue.ts

@@ -11,6 +11,7 @@
 using Ignitor;
 using Microsoft.AspNetCore.Components.E2ETest.Infrastructure.ServerFixtures;
 using Microsoft.AspNetCore.Components.RenderTree;
+using Microsoft.AspNetCore.Components.Web;
 using Microsoft.AspNetCore.SignalR.Client;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;