src/vs/workbench/browser/parts/editor/editorGroupView.ts/EditorGroupView/createContainerContextMenu
class EditorGroupView:	private createContainerContextMenu(): void {
		const menu = this._register(this.menuService.createMenu(MenuId.EmptyEditorGroupContext, this.contextKeyService));

		this._register(addDisposableListener(this.element, EventType.CONTEXT_MENU, e => this.onShowContainerContextMenu(menu, e)));
		this._register(addDisposableListener(this.element, TouchEventType.Contextmenu, () => this.onShowContainerContextMenu(menu)));
	}