Can't read full InputBox validation error message if it is too long. (fixes #33181)

src/vs/base/parts/quickopen/browser/quickOpenModel.ts

@@ -116,6 +116,13 @@ export class QuickOpenEntry {
 		return null;
 	}
 
+	/**
+	 * A tooltip to show when hovering over the entry.
+	 */
+	public getTooltip(): string {
+		return null;
+	}
+
 	/**
 	 * An optional keybinding to show for an entry.
 	 */
@@ -454,6 +461,7 @@ class Renderer implements IRenderer<QuickOpenEntry> {
 			// Label
 			const options: IIconLabelOptions = entry.getLabelOptions() || Object.create(null);
 			options.matches = labelHighlights || [];
+			options.title = entry.getTooltip() || void 0;
 			options.descriptionMatches = descriptionHighlights || [];
 			data.label.setValue(entry.getLabel(), entry.getDescription(), options);
 

src/vs/platform/quickOpen/common/quickOpen.ts

@@ -27,6 +27,7 @@ export interface IPickOpenEntry {
 	label: string;
 	description?: string;
 	detail?: string;
+	tooltip?: string;
 	separator?: ISeparator;
 	alwaysShow?: boolean;
 	run?: (context: IEntryRunContext) => void;

src/vs/workbench/browser/parts/quickopen/quickOpenController.ts

@@ -180,7 +180,7 @@ export class QuickOpenController extends Component implements IQuickOpenService
 
 			// open quick pick with just one choice. we will recurse whenever
 			// the validation/success message changes
-			this.doPick(TPromise.as([{ label: currentPick }]), {
+			this.doPick(TPromise.as([{ label: currentPick, tooltip: currentPick /* make sure message/validation can be read through the hover */ }]), {
 				ignoreFocusLost: options.ignoreFocusLost,
 				autoFocus: { autoFocusFirstEntry: true },
 				password: options.password,
@@ -1024,6 +1024,7 @@ class PickOpenEntry extends PlaceholderQuickOpenEntry implements IPickOpenItem {
 	private _shouldRunWithContext: IEntryRunContext;
 	private description: string;
 	private detail: string;
+	private tooltip: string;
 	private hasSeparator: boolean;
 	private separatorLabel: string;
 	private alwaysShow: boolean;
@@ -1045,6 +1046,7 @@ class PickOpenEntry extends PlaceholderQuickOpenEntry implements IPickOpenItem {
 
 		this.description = item.description;
 		this.detail = item.detail;
+		this.tooltip = item.tooltip;
 		this.hasSeparator = item.separator && item.separator.border;
 		this.separatorLabel = item.separator && item.separator.label;
 		this.alwaysShow = item.alwaysShow;
@@ -1097,6 +1099,10 @@ class PickOpenEntry extends PlaceholderQuickOpenEntry implements IPickOpenItem {
 		return this.detail;
 	}
 
+	public getTooltip(): string {
+		return this.tooltip;
+	}
+
 	public showBorder(): boolean {
 		return this.hasSeparator;
 	}