feat: opt-in keyboard accessibility (#24) - #68
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Enable Space/Enter grab and drop, arrow-key target movement, and Escape cancel via keyboard: true on draggable. Register droppables for geometry navigation, announce status with an assertive live region, and keep the existing onDrop contract for pointer and HTML5 paths.
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Summary
Implements #24 keyboard accessibility as an opt-in third input path (alongside HTML5 + pointer), without breaking existing mouse/touch behavior.
Usage
use:draggable={{ container: index.toString(), dragData: item, keyboard: true }}tabindex=0only when enabled)onDrop)Architecture
onDrop+finalizeDropSessionas pointerdndState.dragInput—'html5' | 'pointer' | 'keyboard' | null(additive)Demo
/keyboard— sortable list with keyboard enabledFollow-ups (not in this PR)
navigation: 'containers')Test plan
bun run test— 108 tests passbun run check/ lint / package/keyboard— Tab → Space → arrows → Space; Escape cancelkeyboardoptionCloses #24