Untitled files show up with "/" as description in some places (fixes #29936)

src/vs/workbench/browser/labels.ts

@@ -19,6 +19,8 @@ import { IConfigurationService } from 'vs/platform/configuration/common/configur
 import { IDisposable, dispose } from 'vs/base/common/lifecycle';
 import { IModelService } from 'vs/editor/common/services/modelService';
 import { IEnvironmentService } from 'vs/platform/environment/common/environment';
+import { IUntitledEditorService } from "vs/workbench/services/untitled/common/untitledEditorService";
+import { Schemas } from "vs/base/common/network";
 
 export interface IEditorLabel {
 	name: string;
@@ -169,11 +171,27 @@ export interface IFileLabelOptions extends IResourceLabelOptions {
 
 export class FileLabel extends ResourceLabel {
 
+	constructor(
+		container: HTMLElement,
+		options: IIconLabelCreationOptions,
+		@IExtensionService extensionService: IExtensionService,
+		@IWorkspaceContextService contextService: IWorkspaceContextService,
+		@IConfigurationService configurationService: IConfigurationService,
+		@IModeService modeService: IModeService,
+		@IModelService modelService: IModelService,
+		@IEnvironmentService environmentService: IEnvironmentService,
+		@IUntitledEditorService private untitledEditorService: IUntitledEditorService
+	) {
+		super(container, options, extensionService, contextService, configurationService, modeService, modelService, environmentService);
+	}
+
 	public setFile(resource: uri, options: IFileLabelOptions = Object.create(null)): void {
+		const hidePath = options.hidePath || (resource.scheme === Schemas.untitled && !this.untitledEditorService.hasAssociatedFilePath(resource));
+
 		this.setLabel({
 			resource,
 			name: !options.hideLabel ? paths.basename(resource.fsPath) : void 0,
-			description: !options.hidePath ? getPathLabel(paths.dirname(resource.fsPath), this.contextService, this.environmentService) : void 0
+			description: !hidePath ? getPathLabel(paths.dirname(resource.fsPath), this.contextService, this.environmentService) : void 0
 		}, options);
 	}
 }