Change RazorTextViewConnectionListener to not depend on a primary workspace.

- Updated the `DefaultRazorDocumentManager` to also not be a workspace service. It didn't end up having any workspace specific logic so it made sense to have the lifetime of the IDE.

#2010

src/Microsoft.VisualStudio.Editor.Razor/DefaultRazorDocumentManager.cs

@@ -3,6 +3,7 @@
 
 using System;
 using System.Collections.Generic;
+using System.ComponentModel.Composition;
 using System.Diagnostics;
 using Microsoft.CodeAnalysis.Razor;
 using Microsoft.VisualStudio.Text;
@@ -10,12 +11,15 @@ using Microsoft.VisualStudio.Text.Editor;
 
 namespace Microsoft.VisualStudio.Editor.Razor
 {
+    [System.Composition.Shared]
+    [Export(typeof(RazorDocumentManager))]
     internal class DefaultRazorDocumentManager : RazorDocumentManager
     {
         private readonly ForegroundDispatcher _foregroundDispatcher;
         private readonly RazorEditorFactoryService _editorFactoryService;
         private readonly TextBufferProjectService _projectService;
 
+        [ImportingConstructor]
         public DefaultRazorDocumentManager(
             ForegroundDispatcher dispatcher,
             RazorEditorFactoryService editorFactoryService,

src/Microsoft.VisualStudio.Editor.Razor/DefaultRazorDocumentManagerFactory.cs

@@ -1,56 +0,0 @@
-// Copyright (c) .NET Foundation. All rights reserved.
-// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
-
-using System;
-using System.Composition;
-using Microsoft.CodeAnalysis.Host;
-using Microsoft.CodeAnalysis.Host.Mef;
-using Microsoft.CodeAnalysis.Razor;
-
-namespace Microsoft.VisualStudio.Editor.Razor
-{
-    [Shared]
-    [ExportLanguageServiceFactory(typeof(RazorDocumentManager), RazorLanguage.Name, ServiceLayer.Default)]
-    internal class DefaultRazorDocumentManagerFactory : ILanguageServiceFactory
-    {
-        private readonly ForegroundDispatcher _foregroundDispatcher;
-        private readonly RazorEditorFactoryService _editorFactoryService;
-        private readonly TextBufferProjectService _projectService;
-
-        [ImportingConstructor]
-        public DefaultRazorDocumentManagerFactory(
-            ForegroundDispatcher foregroundDispatcher, 
-            RazorEditorFactoryService editorFactoryService,
-            TextBufferProjectService projectService)
-        {
-            if (foregroundDispatcher == null)
-            {
-                throw new ArgumentNullException(nameof(foregroundDispatcher));
-            }
-
-            if (editorFactoryService == null)
-            {
-                throw new ArgumentNullException(nameof(editorFactoryService));
-            }
-
-            if (projectService == null)
-            {
-                throw new ArgumentNullException(nameof(projectService));
-            }
-
-            _foregroundDispatcher = foregroundDispatcher;
-            _editorFactoryService = editorFactoryService;
-            _projectService = projectService;
-        }
-
-        public ILanguageService CreateLanguageService(HostLanguageServices languageServices)
-        {
-            if (languageServices == null)
-            {
-                throw new ArgumentNullException(nameof(languageServices));
-            }
-
-            return new DefaultRazorDocumentManager(_foregroundDispatcher, _editorFactoryService, _projectService);
-        }
-    }
-}

src/Microsoft.VisualStudio.Editor.Razor/RazorTextViewConnectionListener.cs

@@ -20,23 +20,7 @@ namespace Microsoft.VisualStudio.Editor.Razor
         private readonly RazorDocumentManager _documentManager;
 
         [ImportingConstructor]
-        public RazorTextViewConnectionListener(ForegroundDispatcher foregroundDispatcher, VisualStudioWorkspaceAccessor workspaceAccessor)
+        public RazorTextViewConnectionListener(ForegroundDispatcher foregroundDispatcher, RazorDocumentManager documentManager)
-        {
-            if (workspaceAccessor == null)
-            {
-                throw new ArgumentNullException(nameof(workspaceAccessor));
-            }
-
-            _foregroundDispatcher = foregroundDispatcher;
-
-            var languageServices = workspaceAccessor.Workspace.Services.GetLanguageServices(RazorLanguage.Name);
-            _documentManager = languageServices.GetRequiredService<RazorDocumentManager>();
-        }
-
-        // This is only for testing. We want to avoid using the actual Roslyn GetService methods in unit tests.
-        internal RazorTextViewConnectionListener(
-            ForegroundDispatcher foregroundDispatcher,
-            RazorDocumentManager documentManager)
         {
             if (foregroundDispatcher == null)
             {