Implementation:SeleniumHQ Selenium Closure UI SubMenu

Knowledge Sources	SeleniumHQ_Selenium Google Closure Library
Domains	JavaScript_Atoms, Vendored_Library
Last Updated	2026-02-12 00:00 GMT

Overview

Vendored Google Closure Library UI module providing menu items that open a submenu, used by Selenium JavaScript atoms.

Description

goog.ui.SubMenu is a vendored copy of the Google Closure Library module. It extends `goog.ui.MenuItem` to represent a menu item that opens a child submenu on hover or keyboard navigation. It manages show/dismiss timers (with a default 218ms delay), uses `goog.positioning.AnchoredViewportPosition` for submenu placement, and delegates rendering to `goog.ui.SubMenuRenderer`. Selenium uses this for its JavaScript atom infrastructure.

Usage

This module is consumed internally by Selenium's JavaScript atoms build system. Not imported directly by end users.

Code Reference

Source Location

• Repository: SeleniumHQ_Selenium
• File: third_party/closure/goog/ui/submenu.js
• Lines: 1-724

Key Exports

goog.provide('goog.ui.SubMenu');

Related Pages

• Environment:SeleniumHQ_Selenium_Contributor_Development_Environment