Polish explorer tooltip rendering

src/vs/base/browser/ui/iconLabel/iconLabel.ts

@@ -12,6 +12,7 @@ import { IMatch } from 'vs/base/common/filters';
 import { Disposable, IDisposable } from 'vs/base/common/lifecycle';
 import { equals } from 'vs/base/common/objects';
 import { Range } from 'vs/base/common/range';
+import { withNullAsUndefined } from 'vs/base/common/types';
 
 export interface IIconLabelCreationOptions {
 	readonly supportHighlights?: boolean;
@@ -21,7 +22,7 @@ export interface IIconLabelCreationOptions {
 }
 
 export interface IIconLabelValueOptions {
-	title?: string | ITooltipMarkdownString;
+	title?: string | ITooltipMarkdownString | null;
 	descriptionTitle?: string;
 	hideIcon?: boolean;
 	extraClasses?: readonly string[];
@@ -140,7 +141,7 @@ export class IconLabel extends Disposable {
 
 		this.domNode.className = labelClasses.join(' ');
 		this.labelContainer.className = containerClasses.join(' ');
-		this.setupHover(options?.descriptionTitle ? this.labelContainer : this.element, options?.title);
+		this.setupHover(options?.descriptionTitle ? this.labelContainer : this.element, withNullAsUndefined(options?.title));
 
 		this.nameNode.setLabel(label, options);
 

src/vs/workbench/browser/labels.ts

@@ -562,9 +562,9 @@ class ResourceLabelWidget extends IconLabel {
 				this.computedPathLabel = this.labelService.getUriLabel(resource);
 			}
 
-			if (!iconLabelOptions.title || (typeof iconLabelOptions.title === 'string')) {
+			if (iconLabelOptions.title === undefined || (typeof iconLabelOptions.title === 'string')) {
 				iconLabelOptions.title = this.computedPathLabel;
-			} else if (!iconLabelOptions.title.markdownNotSupportedFallback) {
+			} else if (iconLabelOptions.title && !iconLabelOptions.title.markdownNotSupportedFallback) {
 				iconLabelOptions.title.markdownNotSupportedFallback = this.computedPathLabel;
 			}
 		}

src/vs/workbench/contrib/files/browser/files.contribution.ts

@@ -431,6 +431,11 @@ configurationRegistry.registerConfiguration({
 			'description': nls.localize('expandSingleFolderWorkspaces', "Controls whether the Explorer should expand multi-root workspaces containing only one folder during initialization"),
 			'default': true
 		},
+		'explorer.renderTooltip': {
+			'type': 'boolean',
+			'description': nls.localize('explorer.renderTooltip', "Controls whether the Explorer should render the tooltip containing the full path on hover."),
+			'default': true
+		},
 		'explorer.sortOrder': {
 			'type': 'string',
 			'enum': [SortOrder.Default, SortOrder.Mixed, SortOrder.FilesFirst, SortOrder.Type, SortOrder.Modified, SortOrder.FoldersNestsFiles],

src/vs/workbench/contrib/files/browser/views/explorerViewer.ts

@@ -298,6 +298,9 @@ export class FilesRenderer implements ICompressibleTreeRenderer<ExplorerItem, Fu
 		this.configListener = this.configurationService.onDidChangeConfiguration(e => {
 			if (e.affectsConfiguration('explorer')) {
 				this.config = this.configurationService.getValue();
+				if (e.affectsConfiguration('explorer.renderTooltip')) {
+					this.explorerService.refresh();
+				}
 			}
 			if (e.affectsConfiguration('workbench.tree.indent')) {
 				updateOffsetStyles();
@@ -417,6 +420,8 @@ export class FilesRenderer implements ICompressibleTreeRenderer<ExplorerItem, Fu
 		const realignNestedChildren = stat.nestedParent && themeIsUnhappyWithNesting;
 
 		templateData.label.setResource({ resource: stat.resource, name: label }, {
+			// We use null to indicate an explicit lack of tooltip vs undefined leaves it up to computation later in the rendering
+			title: this.config.explorer.renderTooltip ? undefined : null,
 			fileKind: stat.isRoot ? FileKind.ROOT_FOLDER : stat.isDirectory ? FileKind.FOLDER : FileKind.FILE,
 			extraClasses: realignNestedChildren ? [...extraClasses, 'align-nest-icon-with-parent-icon'] : extraClasses,
 			fileDecorations: this.config.explorer.decorations,

src/vs/workbench/contrib/files/common/files.ts

@@ -95,6 +95,7 @@ export interface IFilesConfiguration extends PlatformIFilesConfiguration, IWorkb
 		enableUndo: boolean;
 		confirmUndo: UndoConfirmLevel;
 		expandSingleFolderWorkspaces: boolean;
+		renderTooltip: boolean;
 		sortOrder: SortOrder;
 		sortOrderLexicographicOptions: LexicographicOptions;
 		decorations: {