sash: workbench.sash.hoverDelay setting

fixes #118158

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

@@ -81,14 +81,22 @@ export function setGlobalSashSize(size: number): void {
 	onDidChangeGlobalSize.fire(size);
 }
 
+let globalHoverDelay = 300;
+const onDidChangeHoverDelay = new Emitter<number>();
+export function setGlobalHoverDelay(size: number): void {
+	globalHoverDelay = size;
+	onDidChangeHoverDelay.fire(size);
+}
+
 export class Sash extends Disposable {
 
 	private el: HTMLElement;
 	private layoutProvider: ISashLayoutProvider;
 	private hidden: boolean;
 	private orientation!: Orientation;
 	private size: number;
-	private hoverDelayer = this._register(new Delayer(300));
+	private hoverDelay = globalHoverDelay;
+	private hoverDelayer = this._register(new Delayer(this.hoverDelay));
 
 	private _state: SashState = SashState.Enabled;
 	get state(): SashState { return this._state; }
@@ -221,6 +229,8 @@ export class Sash extends Disposable {
 			}));
 		}
 
+		this._register(onDidChangeHoverDelay.event(delay => this.hoverDelay = delay));
+
 		this.hidden = false;
 		this.layoutProvider = layoutProvider;
 
@@ -403,7 +413,7 @@ export class Sash extends Disposable {
 			sash.hoverDelayer.cancel();
 			sash.el.classList.add('hover');
 		} else {
-			sash.hoverDelayer.trigger(() => sash.el.classList.add('hover')).then(undefined, () => { });
+			sash.hoverDelayer.trigger(() => sash.el.classList.add('hover'), sash.hoverDelay).then(undefined, () => { });
 		}
 
 		if (!fromLinkedSash && sash.linkedSash) {

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

@@ -30,6 +30,13 @@ Registry.as<IConfigurationRegistry>(ConfigurationExtensions.Configuration)
 				maximum: maxSize,
 				description: localize('sashSize', "Controls the feedback area size in pixels of the dragging area in between views/editors. Set it to a larger value if you feel it's hard to resize views using the mouse.")
 			},
+			'workbench.sash.hoverDelay': {
+				type: 'number',
+				default: 300,
+				minimum: 0,
+				maximum: 2000,
+				description: localize('sashHoverDelay', "Controls the hover feedback delay in milliseconds of the dragging area in between views/editors.")
+			},
 		}
 	});
 

src/vs/workbench/contrib/sash/browser/sash.ts

@@ -4,7 +4,7 @@
  *--------------------------------------------------------------------------------------------*/
 
 import { clamp } from 'vs/base/common/numbers';
-import { setGlobalSashSize } from 'vs/base/browser/ui/sash/sash';
+import { setGlobalSashSize, setGlobalHoverDelay } from 'vs/base/browser/ui/sash/sash';
 import { Event } from 'vs/base/common/event';
 import { DisposableStore, IDisposable } from 'vs/base/common/lifecycle';
 import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
@@ -20,17 +20,25 @@ export class SashSettingsController implements IWorkbenchContribution, IDisposab
 	constructor(
 		@IConfigurationService private readonly configurationService: IConfigurationService
 	) {
-		const onDidChangeSizeConfiguration = Event.filter(configurationService.onDidChangeConfiguration, e => e.affectsConfiguration('workbench.sash.size'));
-		onDidChangeSizeConfiguration(this.onDidChangeSizeConfiguration, this, this.disposables);
-		this.onDidChangeSizeConfiguration();
+		const onDidChangeSize = Event.filter(configurationService.onDidChangeConfiguration, e => e.affectsConfiguration('workbench.sash.size'));
+		onDidChangeSize(this.onDidChangeSize, this, this.disposables);
+		this.onDidChangeSize();
+
+		const onDidChangeHoverDelay = Event.filter(configurationService.onDidChangeConfiguration, e => e.affectsConfiguration('workbench.sash.hoverDelay'));
+		onDidChangeHoverDelay(this.onDidChangeHoverDelay, this, this.disposables);
+		this.onDidChangeHoverDelay();
 	}
 
-	private onDidChangeSizeConfiguration(): void {
+	private onDidChangeSize(): void {
 		const size = clamp(this.configurationService.getValue<number>('workbench.sash.size') ?? minSize, minSize, maxSize);
 		document.documentElement.style.setProperty('--sash-size', size + 'px');
 		setGlobalSashSize(size);
 	}
 
+	private onDidChangeHoverDelay(): void {
+		setGlobalHoverDelay(this.configurationService.getValue<number>('workbench.sash.hoverDelay'));
+	}
+
 	dispose(): void {
 		this.disposables.dispose();
 	}