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Automatically set an ID on active combobox options #99

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Automatically set an ID on active combobox options #99

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Automatically set an ID on active combobox options
henrycatalinismith Mar 29, 2026
b5fe29d
Merge branch 'main' into selected-id
francinelucca Apr 28, 2026
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6 changes: 6 additions & 0 deletions src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -126,11 +126,17 @@
el.removeAttribute('data-combobox-option-default')

if (target === el) {
if (!target.id) {
target.id = `${this.list.id}-selected`
}
this.input.setAttribute('aria-activedescendant', target.id)
Comment on lines +129 to 132
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Copilot AI Mar 29, 2026

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This change introduces new behavior for options without ids (auto-assigning and moving ${list.id}-selected). There are existing tests for aria-activedescendant behavior in test/test.js, but none cover the missing-id path; please add tests to validate id assignment, id movement across options, and cleanup when selection is cleared/stopped.

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target.setAttribute('aria-selected', 'true')
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Copilot AI Mar 29, 2026

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When selection is cleared via clearSelection() / stop() / destroy(), the auto-assigned ${this.list.id}-selected id is not removed from the last selected option, leaving a stale "selected" id in the DOM. To keep the ARIA example pattern consistent (id only on the active option) and avoid confusing consumers that query for that id, consider removing the generated id as part of clearSelection() (and only if it was generated by this library).

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@francinelucca francinelucca Apr 28, 2026

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I think this suggestion makes sense!

fireSelectEvent(target)
target.scrollIntoView(this.scrollIntoViewOptions)
} else {
if (el.id === `${this.list.id}-selected`) {
el.removeAttribute('id');

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}
el.removeAttribute('aria-selected')
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}
}
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