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Alert - Device dependent event handler

  • WAVE Category: Alert
  • WAVE Alert: Device dependent event handler

Page Content Status

  • WAVE Error guidance text
  • Example of a DOM Snippet Generated From WAVE Tool
  • Project Team Error guidance
    • Project Team Page Details
    • Project Team Issue and PR details
    • Project Team Solution
  • Credits/Authors

WAVE Guidance

WAVE Tool's Reference material on Device dependent event handler may not specifically address your problem. We provide it here for optional reading.

Click to see WAVE Tool Reference

This content added 2026-03-23. Check for updated guidance at: https://wave.webaim.org/api/docs?format=html#event_handler

WAVE Category

Alerts

WAVE Error

Device dependent event handler

What It Means

An event handler is present that may not be accessible.

Why It Matters

The JavaScript events in use do not appear to be accessible to both mouse and keyboard users. To be fully accessible, critical JavaScript interaction should be device independent.

What To Do

Ensure that critical functionality and content is accessible by using a device independent event handler (which responds to both keyboard and mouse) or by using both a mouse dependent and a keyboard dependent event handler.

The Algorithm... in English

One of the following is present: - an onmouseover event but not an onfocus event - an onclick event on something other than a link, form control, or element with a tabindex value of 0 - ondblclick

Standards and Guidelines

Example of a DOM Snippet Generated From WAVE Tool

[HTML snippet showing the problematic code structure that WAVE detected]

Project Team Error guidance

The following material covers how the Project Team has provided a solution to the Device dependent event handler WAVE Alert.

Project Page Details

  • Project Page name: [INSERT PAGE NAME or "ALL"]
  • Project Dev URL: [INSERT URL or "N/A"]
  • Requires sign in: [TRUE OR FALSE]
    • Required User Role: [INSERT ONE OF: Visitor, Logged in user, Admin, Security Admin]
    • Can access page directly from URL: [TRUE OR FALSE]
    • Accepts URL parameters: [TRUE OR FALSE]

Project Team Issue and PR details

  • Related GitHub Issue(s):
    • [INSERT ISSUE URL]
  • Related Pull Request(s):
    • [INSERT PR URL]
  • React Component(s)
    • [INSERT PATH: e.g. path/to/Component.jsx]

Project Team Solution

What is the specific problem that was occurring?

[INSERT CONTENT]

What is the proposed solution to this problem?

[INSERT CONTENT]

Step-By-Step Guide

Click to see step-by-step guide

[ADD DETAILED INSTRUCTIONS HERE]

Other Technical Details

Click to see other technical details

[INSERT OTHER DETAILS e.g. Prop References, Return Value ]

Code Snippet With Solution

Click to see code snippets

[INSERT PATH file/path/to/Snippet.jsx]

[Code example showing the fix/solution]

Why the Fix Works

[INSERT CONTENT]

Where this solution is applicable

  • [INSERT SCENARIO 1]
  • [INSERT SCENARIO 2]
  • [INSERT SCENARIO N]

Screenshots of WAVE Error

1. Descriptive Title for Screenshot Set 1

Description/text for image

[INSERT IMAGE HERE]

Credits/Authors

  • @Rabia2219
  • [INCLUDE Contributor 2]
  • [INCLUDE Contributor N]