feat(core): add eslint-plugin-jsx-a11y and fix accessibility violations by jensblond · Pull Request #930 · haiilo/catalyst

jensblond · 2026-02-26T15:52:20Z

Add eslint-plugin-jsx-a11y with recommended rules to ESLint config
Fix cat-select: add tabIndex, aria-expanded, aria-controls, role="option", keyboard handlers
Fix cat-tag: add aria-expanded and aria-controls to combobox input
Fix cat-radio: remove incorrect role="radio" from label element
Fix cat-date-inline: remove redundant onClick from label (htmlFor handles focus)
Fix cat-input: add role="presentation" to wrapper div
Fix cat-i18n-registry: remove unused variable in catch block

This enables static a11y linting as part of the standard lint workflow.

core/src/components/cat-input/cat-input.tsx

glushkova91 · 2026-02-26T17:49:20Z

core/src/components/cat-select/cat-select.tsx

              ref={el => (this.trigger = el)}
              id={this.id}
              role="combobox"
+              tabIndex={0}


I see that tabIndex is assigned programmatically in onClick and in onKeyDown, I'm not sure if this don't break the current implementation, if you are not sure - easier to add eslint-disable

Done - removed tabIndex={0} and added ESLint disable comment instead.

it's not removed

core/src/components/cat-select/cat-select.tsx

core/src/components/cat-tag/cat-tag.tsx

- Add eslint-plugin-jsx-a11y with recommended rules to ESLint config - Fix cat-select: add tabIndex, aria-expanded, aria-controls, role="option", keyboard handlers - Fix cat-tag: add aria-expanded and aria-controls to combobox input - Fix cat-radio: remove incorrect role="radio" from label element - Fix cat-date-inline: remove redundant onClick from label (htmlFor handles focus) - Fix cat-input: add role="presentation" to wrapper div - Fix cat-i18n-registry: remove unused variable in catch block This enables static a11y linting as part of the standard lint workflow.

- Add axe-core dependency for runtime a11y checks - Create reusable checkA11y() helper that injects axe-core into Stencil E2E pages - Add formatViolations() helper for readable test output - Disable document-level rules by default (title, lang, landmarks) for component testing - Add a11y test examples to cat-button component Usage: import { checkA11y, formatViolations } from '../../utils/a11y-test'; const violations = await checkA11y(page); expect(violations).toEqual([]);

- cat-input: replace role="presentation" with ESLint disable comment - cat-select: remove redundant tabIndex, onKeyDown handlers, and duplicate ARIA attributes - cat-select: use i18n for 'Options' fallback instead of hardcoded string - cat-tag: remove incorrect combobox role and associated ARIA attributes

- cat-menu: Change <nav role="menu"> to <div role="menu"> (nav is non-interactive landmark, menu is interactive role) - cat-select: Add tabIndex back to combobox for focusability - cat-select: Add eslint disable for option click handler

- cat-menu.spec: Update selectors from nav to div for role="menu" - cat-tag.spec: Remove role="combobox" and aria-controls from expected HTML

.DS_Store

glushkova91 · 2026-03-11T15:04:35Z

pnpm-lock.yaml

@@ -109,55 +109,16 @@ importers:
        version: 5.9.3
      vitest:
        specifier: ^4.0.16
-        version: 4.0.18(@types/node@12.20.55)(@vitest/browser-playwright@4.0.18)(@vitest/ui@4.0.16)(jiti@2.6.1)(jsdom@27.4.0)(less@4.6.2)(sass-embedded@1.98.0)(sass@1.97.1)
-
-  angular/dist/catalyst:


angular/dist/catalyst should not be deleted

glushkova91 · 2026-03-11T15:07:07Z

core/package.json

+    "babel-loader": "9.2.1",
    "eslint": "9.39.2",
    "eslint-config-prettier": "9.1.2",
+    "eslint-plugin-jsx-a11y": "^6.10.0",


we agreed to fix versions for security reasons (same for axe-core)

glushkova91 · 2026-03-11T15:17:36Z

core/src/components/cat-date-inline/cat-date-inline.tsx

        <div class={{ 'label-container': true, 'label-hidden': this.labelHidden }}>
          {(this.hasSlottedLabel || this.label) && (
-            <label id={`${this.id}-label`} htmlFor={this.id} part="label" onClick={() => this.doFocus()}>
+            <label id={`${this.id}-label`} htmlFor={this.id} part="label">


I thought we don't have a real case for cat-date-inline with shown label, but we do, in search-ui, and by clicking on label the today day receives focus. That changes were intentional and we should not remove focus on click. Let's just disable the eslint rule

core/src/components/cat-tag/cat-tag.tsx

glushkova91 · 2026-03-11T15:34:13Z

core/src/components/cat-input/cat-input.tsx

        </div>
        <div class={{ 'input-color': this.type === 'color', 'input-container': true }}>
          <div class="input-outer-wrapper">
+            {/* eslint-disable-next-line jsx-a11y/click-events-have-key-events, jsx-a11y/no-static-element-interactions -- click focuses the input, keyboard users can focus it directly */}


I have a warning
379:14 warning Unused eslint-disable directive (no problems were reported from 'jsx-a11y/click-events-have-key-events' or 'jsx-a11y/no-static-element-interactions')

core/src/components/cat-tag/cat-tag.tsx

glushkova91 · 2026-03-11T15:44:25Z

core/src/components/cat-select/cat-select.tsx

              ref={el => (this.trigger = el)}
              id={this.id}
              role="combobox"
+              tabIndex={0}


it's not removed

- Pin exact versions for axe-core and eslint-plugin-jsx-a11y - Restore onClick handler on cat-date-inline label with ESLint disable - Update ESLint disable comment in cat-input for clarity - Regenerate pnpm-lock.yaml

glushkova91 reviewed Feb 26, 2026

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glushkova91 requested changes Feb 26, 2026

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jensblond force-pushed the feat/a11y-linting branch from aa7dc1a to a1cd508 Compare March 11, 2026 13:54

jensblond added 7 commits March 11, 2026 15:29

fix(core): update cat-tag spec test for aria-controls attribute

921495b

style: fix prettier formatting

0f283ba

fix(core): resolve CI lint errors for a11y rules

5a45679

- cat-menu: Change <nav role="menu"> to <div role="menu"> (nav is non-interactive landmark, menu is interactive role) - cat-select: Add tabIndex back to combobox for focusability - cat-select: Add eslint disable for option click handler

test(core): update specs to match a11y implementation changes

e19b2e8

- cat-menu.spec: Update selectors from nav to div for role="menu" - cat-tag.spec: Remove role="combobox" and aria-controls from expected HTML

jensblond force-pushed the feat/a11y-linting branch from 04eb042 to e19b2e8 Compare March 11, 2026 14:29

glushkova91 reviewed Mar 11, 2026

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.DS_Store Outdated Show resolved Hide resolved

jensblond added 2 commits March 11, 2026 15:50

chore: remove .DS_Store

22a28aa

chore: add .DS_Store to .gitignore and create AGENTS.md

04eeddf

jensblond requested a review from glushkova91 March 11, 2026 15:12

glushkova91 reviewed Mar 11, 2026

View reviewed changes

fix(core): address PR #930 review feedback

b580c3d

- Pin exact versions for axe-core and eslint-plugin-jsx-a11y - Restore onClick handler on cat-date-inline label with ESLint disable - Update ESLint disable comment in cat-input for clarity - Regenerate pnpm-lock.yaml

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jensblond commented Feb 26, 2026

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