src/vs/base/browser/ui/breadcrumbs/breadcrumbsWidget.ts/BreadcrumbsWidget/_onClick
class BreadcrumbsWidget:	private _onClick(event: IMouseEvent): void {
		if (!this._enabled) {
			return;
		}
		for (let el: HTMLElement | null = event.target; el; el = el.parentElement) {
			const idx = this._nodes.indexOf(el as HTMLDivElement);
			if (idx >= 0) {
				this._focus(idx, event);
				this._select(idx, event);
				break;
			}
		}
	}