- 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.
Learn more
- Understanding Understanding document (opens in a new tab)
Related scenarios
- Feature Requiring a Swipe Gesture With No Tap Alternative
- Swipe-Only Carousel With No Next or Previous Button
- Map or Image Zoomable Only by Pinch Gesture
- Pull-to-Refresh as the Only Way to Refresh Content
- Swipe-to-Delete Action With No Tap-Based Alternative
- Slider Operable Only by Dragging, Not by Tapping or Typing