src/vs/platform/list/browser/listService.ts/ResourceNavigator/onSelectionFromKeyboard
class ResourceNavigator:	private onSelectionFromKeyboard(event: ITreeEvent<any>): void {
		if (event.elements.length !== 1) {
			return;
		}

		const selectionKeyboardEvent = event.browserEvent as SelectionKeyboardEvent;
		const preserveFocus = typeof selectionKeyboardEvent.preserveFocus === 'boolean' ? selectionKeyboardEvent.preserveFocus! : true;
		const pinned = typeof selectionKeyboardEvent.pinned === 'boolean' ? selectionKeyboardEvent.pinned! : !preserveFocus;
		const sideBySide = false;

		this._open(this.getSelectedElement(), preserveFocus, pinned, sideBySide, event.browserEvent);
	}