mousedown handler without keyboard equivalent Accessibility Checkpoint

Description

All mousedown handlers should have an equivalent keydown or click handler.

Help

Some users are unable to use a mouse, so use the keyboard instead. Add an equivalent keyboard event handler to help these users.

Applicable standards

• WCAG 2.0 F54 (Success Criteria: 2.1.1 level A, 2.1.3 level AAA)
• WCAG 2.1 F54 (Success Criteria: 2.1.1 level A, 2.1.3 level AAA)
• WCAG 2.2 F54 (Success Criteria: 2.1.1 level A, 2.1.3 level AAA)
• Section 508 (2017) F54 (Success Criteria: 2.1.1 level A, 2.1.3 level AAA)

Note: Section 508 Refresh (2017) checkpoints are equivalent to WCAG 2.0 level A and level AA checkpoints.

Change history

• 6.47 Dec 2022 Improved event handler detection.
• 5.38 Jul 2020 Changed rule ID from AccWcag1-9.3.4 to AccScriptMousedownNoKeyboard.
• 5.20 Jan 2016 Fixed false positive.
• 5.3 Sep 2013 Fixed false negative.
• 4.5 Nov 2011 Now triggers Section 508 1194.22 (l).
• 4.1 Aug 2010 Don’t fire if ONMOUSEDOWN handler is present but blank.
• 4.0 Jun 2010 Don’t fire for JavaScript code testing for existence of ONMOUSEDOWN handler.
• 3.5 Dec 2009 Corrected priority.
• 3.0 Dec 2008 Now triggers WCAG2 F54.
• 3.0 Dec 2008 Don’t trigger in script blocks that assign an ONKEY handler as well as an ONMOUSE handler.
• 2.0 Dec 2007 Now triggers Section 508 issue.
• 1.0 Feb 2007 Added.

This page describes a web site issue detected in HTML documents by SortSite Desktop and OnDemand Suite.

Rule ID: AccScriptMousedownNoKeyboard