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🎨 Palette: Make SamplerVoicePanel lock switch keyboard accessible#430

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ford442 merged 1 commit intomainfrom
palette-sampler-switch-a11y-18325537781248221405
Apr 8, 2026
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🎨 Palette: Make SamplerVoicePanel lock switch keyboard accessible#430
ford442 merged 1 commit intomainfrom
palette-sampler-switch-a11y-18325537781248221405

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@ford442 ford442 commented Apr 8, 2026

💡 What

Refactored the "LOCK TO SEQUENCER NOTES" custom switch in SamplerVoicePanel.tsx to use a semantic <button role="switch"> rather than a visually hidden <input type="checkbox">. Also updated a pre-existing broken test in LiveKeyboardA11y.test.tsx.

🎯 Why

Visually hidden checkboxes (often implemented via sr-only or opacity hacks) inside a <label> suppress native browser focus indicators. When a keyboard user tabs to the "LOCK TO SEQUENCER NOTES" switch, there was absolutely no visual indication that the element was focused, causing a severe WCAG accessibility failure.

📸 Before/After

(Verified visually with Playwright)
Before: Tabbing to the lock switch showed no focus ring.
After: Tabbing to the lock switch renders a clear cyan focus ring around the toggle, allowing users to confidently navigate and toggle it via keyboard/Spacebar.

♿ Accessibility

  • Implemented standard role="switch" and aria-checked={localLock}.
  • Ensured keyboard focus visibility using Tailwind's focus-visible utilities.
  • Added aria-hidden="true" to the adjacent text span so screen readers don't read the switch label twice.

PR created automatically by Jules for task 18325537781248221405 started by @ford442

…le button

- Replaces the visually hidden `<input type="checkbox" className="sr-only">` with a semantic `<button type="button" role="switch" aria-checked={localLock}>`.
- Ensures proper keyboard focus visibility (`focus-visible:ring-2 focus-visible:ring-cyan-400`).
- Fixes `LiveKeyboardA11y.test.tsx` which had an outdated assertion string.

Co-authored-by: ford442 <9397845+ford442@users.noreply.github.com>
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@ford442 ford442 merged commit a981f8f into main Apr 8, 2026
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@ford442 ford442 deleted the palette-sampler-switch-a11y-18325537781248221405 branch April 8, 2026 03:37
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