• Success Criterion 2.5.1
  • Conformance level A

Two-Finger Gesture Required With No Single-Pointer Option

2.5.1 — Pointer Gestures

Scenario

Setting

A pharmacy app's prescription-refill form

What’s wrong

Two-finger pan/rotate requirements without single-pointer controls.

Example

<div ontouchstart="handleSwipe()"></div> <!-- swipe-only delete -->

Why it matters

People with limited hand mobility and users of head-pointers, sticks, or eye-gaze systems.

How to test

Try the two-finger pan/rotate action with a single finger or a button instead: if no single-pointer alternative exists, it fails.

How to fix

A single-tap/click alternative must exist for every path-based or multi-point gesture.

<div ontouchstart="handleSwipe()"></div>
<button aria-label="Delete item">🗑</button>

Any path-based or multi-touch gesture needs a single-tap alternative that does the same thing.

Outcome

On a pharmacy app's prescription-refill form, this barrier is gone for people with limited hand mobility and users of head-pointers — they reach the same outcome without extra effort.

Who is affected

People with limited hand mobility and users of head-pointers, sticks, or eye-gaze systems.

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