Support completions in comment editors

src/vs/workbench/parts/comments/electron-browser/commentNode.ts

@@ -131,7 +131,7 @@ export class CommentNode extends Disposable {
 		const container = dom.append(this._commentEditContainer, dom.$('.edit-textarea'));
 		this._commentEditor = this.instantiationService.createInstance(SimpleCommentEditor, container, SimpleCommentEditor.getEditorOptions());
 		const resource = URI.parse(`comment:commentinput-${this.comment.commentId}-${Date.now()}.md`);
-		this._commentEditorModel = this.modelService.createModel('', this.modeService.createByFilepathOrFirstLine(resource.path), resource, true);
+		this._commentEditorModel = this.modelService.createModel('', this.modeService.createByFilepathOrFirstLine(resource.path), resource, false);
 
 		this._commentEditor.setModel(this._commentEditorModel);
 		this._commentEditor.setValue(this.comment.body.value);

src/vs/workbench/parts/comments/electron-browser/commentThreadWidget.ts

@@ -306,7 +306,7 @@ export class ReviewZoneWidget extends ZoneWidget {
 		this._commentEditor = this.instantiationService.createInstance(SimpleCommentEditor, this._commentForm, SimpleCommentEditor.getEditorOptions());
 		const modeId = hasExistingComments ? this._commentThread.threadId : ++INMEM_MODEL_ID;
 		const resource = URI.parse(`${COMMENT_SCHEME}:commentinput-${modeId}.md`);
-		const model = this.modelService.createModel(this._pendingComment || '', this.modeService.createByFilepathOrFirstLine(resource.path), resource, true);
+		const model = this.modelService.createModel(this._pendingComment || '', this.modeService.createByFilepathOrFirstLine(resource.path), resource, false);
 		this._localToDispose.push(model);
 		this._commentEditor.setModel(model);
 		this._localToDispose.push(this._commentEditor);

src/vs/workbench/parts/comments/electron-browser/simpleCommentEditor.ts

@@ -4,7 +4,7 @@
  *--------------------------------------------------------------------------------------------*/
 
 import { IEditorOptions } from 'vs/editor/common/config/editorOptions';
-import { EditorAction, EditorExtensionsRegistry, IEditorContributionCtor } from 'vs/editor/browser/editorExtensions';
+import { EditorAction, EditorExtensionsRegistry } from 'vs/editor/browser/editorExtensions';
 import { ICodeEditorService } from 'vs/editor/browser/services/codeEditorService';
 import { CodeEditorWidget } from 'vs/editor/browser/widget/codeEditorWidget';
 import { IContextKeyService } from 'vs/platform/contextkey/common/contextkey';
@@ -13,7 +13,6 @@ import { ICommandService } from 'vs/platform/commands/common/commands';
 
 // Allowed Editor Contributions:
 import { MenuPreventer } from 'vs/workbench/parts/codeEditor/browser/menuPreventer';
-import { SelectionClipboard } from 'vs/workbench/parts/codeEditor/electron-browser/selectionClipboard';
 import { ContextMenuController } from 'vs/editor/contrib/contextmenu/contextmenu';
 import { SuggestController } from 'vs/editor/contrib/suggest/suggestController';
 import { SnippetController2 } from 'vs/editor/contrib/snippet/snippetController2';
@@ -32,18 +31,17 @@ export class SimpleCommentEditor extends CodeEditorWidget {
 		@IThemeService themeService: IThemeService,
 		@INotificationService notificationService: INotificationService,
 	) {
-		super(domElement, options, { isSimpleWidget: true }, instantiationService, codeEditorService, commandService, contextKeyService, themeService, notificationService);
-	}
+		const codeEditorWidgetOptions = {
+			contributions: [
+				MenuPreventer,
+				ContextMenuController,
+				SuggestController,
+				SnippetController2,
+				TabCompletionController,
+			]
+		};
 
-	protected _getContributions(): IEditorContributionCtor[] {
-		return [
-			MenuPreventer,
-			SelectionClipboard,
-			ContextMenuController,
-			SuggestController,
-			SnippetController2,
-			TabCompletionController,
-		];
+		super(domElement, options, codeEditorWidgetOptions, instantiationService, codeEditorService, commandService, contextKeyService, themeService, notificationService);
 	}
 
 	protected _getActions(): EditorAction[] {