remove special case of titlebar visibility change

src/vs/workbench/browser/layout.ts

@@ -84,9 +84,6 @@ export abstract class Layout extends Disposable implements IWorkbenchLayoutServi
 
 	//#region Events
 
-	private readonly _onTitleBarVisibilityChange: Emitter<void> = this._register(new Emitter<void>());
-	readonly onTitleBarVisibilityChange: Event<void> = this._onTitleBarVisibilityChange.event;
-
 	private readonly _onZenModeChange: Emitter<boolean> = this._register(new Emitter<boolean>());
 	readonly onZenModeChange: Event<boolean> = this._onZenModeChange.event;
 
@@ -268,8 +265,6 @@ export abstract class Layout extends Disposable implements IWorkbenchLayoutServi
 			this.state.menuBar.toggled = visible;
 
 			if (this.state.fullscreen && (this.state.menuBar.visibility === 'toggle' || this.state.menuBar.visibility === 'default')) {
-				this._onTitleBarVisibilityChange.fire();
-
 				// Propagate to grid
 				this.workbenchGrid.setViewVisible(this.titleBarPartView, this.isVisible(Parts.TITLEBAR_PART));
 
@@ -294,8 +289,6 @@ export abstract class Layout extends Disposable implements IWorkbenchLayoutServi
 
 		// Changing fullscreen state of the window has an impact on custom title bar visibility, so we need to update
 		if (getTitleBarStyle(this.configurationService, this.environmentService) === 'custom') {
-			this._onTitleBarVisibilityChange.fire();
-
 			// Propagate to grid
 			this.workbenchGrid.setViewVisible(this.titleBarPartView, this.isVisible(Parts.TITLEBAR_PART));
 

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

@@ -107,7 +107,7 @@ export class QuickOpenController extends Component implements IQuickOpenService
 
 	private registerListeners(): void {
 		this._register(this.configurationService.onDidChangeConfiguration(() => this.updateConfiguration()));
-		this._register(this.layoutService.onTitleBarVisibilityChange(() => this.positionQuickOpenWidget()));
+		this._register(this.layoutService.onPartVisibilityChange(() => this.positionQuickOpenWidget()));
 		this._register(browser.onDidChangeZoomLevel(() => this.positionQuickOpenWidget()));
 		this._register(this.layoutService.onLayout(dimension => this.layout(dimension)));
 	}

src/vs/workbench/contrib/debug/browser/debugToolBar.ts

@@ -176,7 +176,7 @@ export class DebugToolBar extends Themable implements IWorkbenchContribution {
 			});
 		}));
 
-		this._register(this.layoutService.onTitleBarVisibilityChange(() => this.setYCoordinate()));
+		this._register(this.layoutService.onPartVisibilityChange(() => this.setYCoordinate()));
 		this._register(browser.onDidChangeZoomLevel(() => this.setYCoordinate()));
 	}
 

src/vs/workbench/services/layout/browser/layoutService.ts

@@ -31,11 +31,6 @@ export interface IWorkbenchLayoutService extends ILayoutService {
 
 	_serviceBrand: undefined;
 
-	/**
-	 * Emits when the visibility of the title bar changes.
-	 */
-	readonly onTitleBarVisibilityChange: Event<void>;
-
 	/**
 	 * Emits when the zen mode is enabled or disabled.
 	 */

src/vs/workbench/test/workbenchTestServices.ts

@@ -465,13 +465,8 @@ export class TestLayoutService implements IWorkbenchLayoutService {
 	onPartVisibilityChange: Event<void> = Event.None;
 	onLayout = Event.None;
 
-	private readonly _onTitleBarVisibilityChange = new Emitter<void>();
 	private readonly _onMenubarVisibilityChange = new Emitter<Dimension>();
 
-	public get onTitleBarVisibilityChange(): Event<void> {
-		return this._onTitleBarVisibilityChange.event;
-	}
-
 	public get onMenubarVisibilityChange(): Event<Dimension> {
 		return this._onMenubarVisibilityChange.event;
 	}