context menu on title area is specific for sidebarPart thus move it there

fixes #46237

src/vs/workbench/browser/parts/compositePart.ts

@@ -15,7 +15,6 @@ import * as strings from 'vs/base/common/strings';
 import { Emitter } from 'vs/base/common/event';
 import * as types from 'vs/base/common/types';
 import * as errors from 'vs/base/common/errors';
-import { StandardMouseEvent } from 'vs/base/browser/mouseEvent';
 import { ToolBar } from 'vs/base/browser/ui/toolbar/toolbar';
 import { IActionItem, ActionsOrientation } from 'vs/base/browser/ui/actionbar/actionbar';
 import { ProgressBar } from 'vs/base/browser/ui/progressbar/progressbar';
@@ -36,7 +35,7 @@ import { IKeybindingService } from 'vs/platform/keybinding/common/keybinding';
 import { IThemeService } from 'vs/platform/theme/common/themeService';
 import { attachProgressBarStyler } from 'vs/platform/theme/common/styler';
 import { INotificationService } from 'vs/platform/notification/common/notification';
-import { Dimension, EventType } from 'vs/base/browser/dom';
+import { Dimension } from 'vs/base/browser/dom';
 
 export interface ICompositeTitleLabel {
 
@@ -74,7 +73,7 @@ export abstract class CompositePart<T extends Composite> extends Part {
 		private telemetryService: ITelemetryService,
 		protected contextMenuService: IContextMenuService,
 		protected partService: IPartService,
-		private keybindingService: IKeybindingService,
+		protected keybindingService: IKeybindingService,
 		protected instantiationService: IInstantiationService,
 		themeService: IThemeService,
 		protected readonly registry: CompositeRegistry<T>,
@@ -408,8 +407,6 @@ export abstract class CompositePart<T extends Composite> extends Part {
 			'class': ['composite', 'title']
 		});
 
-		$(titleArea).on(EventType.CONTEXT_MENU, (e: MouseEvent) => this.onTitleAreaContextMenu(new StandardMouseEvent(e)));
-
 		// Left Title Label
 		this.titleLabel = this.createTitleLabel(titleArea.getHTMLElement());
 
@@ -456,27 +453,7 @@ export abstract class CompositePart<T extends Composite> extends Part {
 		this.titleLabel.updateStyles();
 	}
 
-	private onTitleAreaContextMenu(event: StandardMouseEvent): void {
-		if (this.activeComposite) {
-			const contextMenuActions = this.getTitleAreaContextMenuActions();
-			if (contextMenuActions.length) {
-				const anchor: { x: number, y: number } = { x: event.posx, y: event.posy };
-				this.contextMenuService.showContextMenu({
-					getAnchor: () => anchor,
-					getActions: () => TPromise.as(contextMenuActions),
-					getActionItem: action => this.actionItemProvider(action as Action),
-					actionRunner: this.activeComposite.getActionRunner(),
-					getKeyBinding: action => this.keybindingService.lookupKeybinding(action.id)
-				});
-			}
-		}
-	}
-
-	protected getTitleAreaContextMenuActions(): IAction[] {
-		return this.activeComposite ? this.activeComposite.getContextMenuActions() : [];
-	}
-
-	private actionItemProvider(action: Action): IActionItem {
+	protected actionItemProvider(action: Action): IActionItem {
 
 		// Check Active Composite
 		if (this.activeComposite) {

src/vs/workbench/browser/parts/sidebar/sidebarPart.ts

@@ -26,8 +26,9 @@ import { IThemeService } from 'vs/platform/theme/common/themeService';
 import { contrastBorder } from 'vs/platform/theme/common/colorRegistry';
 import { SIDE_BAR_TITLE_FOREGROUND, SIDE_BAR_BACKGROUND, SIDE_BAR_FOREGROUND, SIDE_BAR_BORDER } from 'vs/workbench/common/theme';
 import { INotificationService } from 'vs/platform/notification/common/notification';
-import { Dimension } from 'vs/base/browser/dom';
+import { Dimension, EventType } from 'vs/base/browser/dom';
 import { $ } from 'vs/base/browser/builder';
+import { StandardMouseEvent } from 'vs/base/browser/mouseEvent';
 
 export class SidebarPart extends CompositePart<Viewlet> {
 
@@ -76,6 +77,13 @@ export class SidebarPart extends CompositePart<Viewlet> {
 		return this._onDidCompositeClose.event as Event<IViewlet>;
 	}
 
+	public createTitleArea(parent: HTMLElement): HTMLElement {
+		const titleArea = super.createTitleArea(parent);
+		$(titleArea).on(EventType.CONTEXT_MENU, (e: MouseEvent) => this.onTitleAreaContextMenu(new StandardMouseEvent(e)));
+
+		return titleArea;
+	}
+
 	public updateStyles(): void {
 		super.updateStyles();
 
@@ -133,6 +141,23 @@ export class SidebarPart extends CompositePart<Viewlet> {
 
 		return super.layout(dimension);
 	}
+
+	private onTitleAreaContextMenu(event: StandardMouseEvent): void {
+		const activeViewlet = this.getActiveViewlet() as Viewlet;
+		if (activeViewlet) {
+			const contextMenuActions = activeViewlet ? activeViewlet.getContextMenuActions() : [];
+			if (contextMenuActions.length) {
+				const anchor: { x: number, y: number } = { x: event.posx, y: event.posy };
+				this.contextMenuService.showContextMenu({
+					getAnchor: () => anchor,
+					getActions: () => TPromise.as(contextMenuActions),
+					getActionItem: action => this.actionItemProvider(action as Action),
+					actionRunner: activeViewlet.getActionRunner(),
+					getKeyBinding: action => this.keybindingService.lookupKeybinding(action.id)
+				});
+			}
+		}
+	}
 }
 
 class FocusSideBarAction extends Action {