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Improve dashboard keyboard and screen reader accessibility - #37

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LukasWallrich merged 3 commits into
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fix/accessibility
Oct 21, 2026
Merged

LukasWallrich merged 3 commits into
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fix/accessibility

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@LukasWallrich

@LukasWallrich LukasWallrich commented Oct 21, 2026 •

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From the second usability review of 21 October 2026. This was an agent-led review using simulated perspectives, not recruited participants. GPT 6.1 Sol implemented the changes; Claude reviewed them. This PR fixes C20, the dark-mode colour pair from C08, and the chart font from C19.

Changes

  • Focus:
    • 3 px focus rings with at least 3:1 contrast, including on the dark top bar;
    • paging keeps focus on the paging control, marks the current page with aria-current and names the Previous/Next buttons;
    • mobile Browse paging moves focus to the results heading.
  • Citation originals table: real <button>s inside the headers, aria-sort on the sorted column, sort buttons at least 24×24 px, and named empty headers.
  • Forced colours: selected chips, the active tab and the citation mini-bars stay distinguishable.
  • Targets and axe: info icons, glossary terms, sort buttons, footer links, evidence toggles and the close button are at least 24 px. Info icons have a proper role, source links are underlined and named, and low-contrast text is fixed.
  • Status regions: mobile result counts, Trends counts and analysis chip changes are announced, without duplicate announcements.
  • Landmarks: a skip link, header, nav and footer landmarks, an h1 per panel, and chart-specific region names. Duplicate button names are made unique.
  • Reduced motion: prefers-reduced-motion turns off Chart.js animation, CSS transitions and smooth scrolling.
  • Mobile tooltips: the definition sheet closes on scroll.
  • C08, dark mode: Successful is now #86efac (was #4ade80) and Failed #ed7465 (was #f08a7c). The simulated deuteranopia ΔE rises from 6.5 to 24.1, and both colours keep at least 5.7:1 contrast. Badges and citation mini-bars now use the theme tokens.
  • Chart.js font: Chart.js now uses the site font, Source Sans 3.

Verification

  • axe-core 4.14 on 7 tabs × 2 themes: 57 → 0 rule violations and 29 → 0 serious affected nodes. The mobile citation dialog has 0 violations.
  • Four new browser scenarios; full suite passes locally (20/20).
  • No page overflow at 1280 or 390 px in either theme.

For review

The wider colour-semantics problem (red and purple each carrying several meanings) belongs to the small-groups proposal PR. Screen-reader speech has not been checked with NVDA or VoiceOver.

🤖 Generated with Claude Code


Summary by cubic

Improves dashboard accessibility for keyboard and screen-reader users with clearer focus, navigation, and status updates. It also respects reduced-motion and forced-colors preferences and improves outcome-color contrast in dark mode.

Accessibility

  • Adds a skip link, named landmarks and chart controls, accessible sort and paging state, and single announcements for result counts and filter changes.
  • Announces filter changes by group label; state restored from a shared URL stays silent.
  • Adds the reproduction browse kind, normalizes invalid URL kinds, and names sort buttons with aria-pressed state.
  • Keeps focus useful after paging and moves it to the results heading on mobile.
  • Uses theme tokens for outcome colors and the site font for charts, and closes mobile tooltips on scroll.

Verification

  • Adds browser coverage for keyboard access, announcements, display preferences, and color contrast. The full suite passes locally, and axe reports no violations across seven tabs and both themes.

Written for commit 66670f4. Summary will update on new commits.

View guided diff Turn on auto-fix

Summary by CodeRabbit

  • Accessibility
    • Improved keyboard navigation, focus management, skip links, landmarks, headings, labels, live announcements, and pagination status.
    • Added clearer accessible names for charts, tables, filters, controls, citations, and data-source links.
    • Added visible focus indicators, larger interaction targets, reduced-motion support, and forced-colors support.
  • Bug Fixes
    • Improved mobile pagination scrolling and tooltip behavior.
    • Validated browse filters and clarified zero-result, trend, and reproduction labels.
    • Preserved focus during table sorting, pagination, and rerendering.
  • Style
    • Updated light and dark chart colors, badge contrast, and theme-aware outcome styling.

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📥 Commits

Reviewing files that changed from the base of the PR and between f86306a and 66670f4.

📒 Files selected for processing: 8
  • assets/app.js
  • assets/chart-accessibility.js
  • assets/citation-impact.js
  • assets/ds-tokens.css
  • assets/styles.css
  • assets/view-controls.js
  • index.html
  • tests/browser.test.cjs
📝 Walkthrough

This PR updates accessibility across page structure, browse and citation interactions, and chart descriptions and controls. It also changes outcome colors to use theme tokens and adds browser tests for keyboard access, announcements, reduced motion, forced colors, and contrast.

Changes: Accessibility and chart presentation

Layer / File(s) Summary
Page landmarks and shared accessibility
index.html, assets/styles.css, assets/app.js
Page landmarks, panel headings, accessible labels, focus styles, and forced-colors support are updated.
Browse and trend accessibility
assets/app.js, assets/view-controls.js, index.html, tests/browser.test.cjs
Browse labels and kind validation are updated. Mobile pagination focuses the results heading, filter selections are announced, and mobile tooltip dismissal behavior is updated.
Citation table controls and focus
assets/citation-impact.js, index.html, assets/styles.css, tests/browser.test.cjs
Citation tables use updated heading and sort semantics, labeled pagination controls, and focus restoration after rerendering.
Chart descriptions, motion, and color
assets/chart-accessibility.js, assets/ds-tokens.css, assets/styles.css, assets/app.js, tests/browser.test.cjs
Chart accessible names and reduced-motion behavior are updated. Outcome colors use theme tokens, with browser tests for chart accessibility and color contrast.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Feature

Possibly related issues

  • forrtproject/flora-explorer#11 — The PR adds selected-kind labels to Browse and Trends counts; the broader shared analysis-copy audit remains outside this PR.
  • forrtproject/flora-explorer#14 — The PR includes mobile tooltip dismissal and selector and chart accessibility changes; broader study-discovery changes remain separate.
  • forrtproject/flora-explorer#32 — The PR sets the Chart.js font family to Source Sans 3, addressing the chart-font inconsistency described in the issue.

Suggested reviewers: lukasroeseler

Merge Risk: 🔵 Low · up to f8630

Some screen-reader filter announcements name the wrong control. This is a bounded accessibility issue that can be corrected without blocking merge.

Pre-merge checks: Passed 4 · Failed 1

Failed Failed checks: 1 warning

Check name Status Explanation Resolution
Docstring Coverage Warning Docstring coverage is 9.52% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 21 functions across 5 files. (3 skipped: 3… Write docstrings for the functions missing them to satisfy the coverage threshold.
Passed Passed checks: 4 passed
Check name Status Explanation
Description Check Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check Passed The title clearly and concisely describes the main change: improving dashboard keyboard and screen reader accessibility.
Linked Issues check Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check Passed Check skipped because no linked issues were found for this pull request.
Full details: Docstring Coverage

Explanation

Docstring coverage is 9.52% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 21 functions across 5 files. (3 skipped: 3 unsupported.)

Resolution

Write docstrings for the functions missing them to satisfy the coverage threshold.

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All reported issues were addressed across 8 files

Reply with feedback, questions, or to request a fix.

View guided diff | Turn on auto-fix | Re-trigger cubic

Comment thread assets/styles.css
Comment thread assets/view-controls.js
Comment thread index.html Outdated
Comment thread tests/browser.test.cjs
Comment thread assets/app.js Outdated
Comment thread assets/citation-impact.js

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Actionable comments posted: 1

🔇 Additional comments: 15
assets/citation-impact.js: 1

359-359: LGTM!

Also applies to: 389-393, 418-424, 456-461, 632-632

assets/chart-accessibility.js: 5

44-44: LGTM!


68-68: LGTM!


92-92: LGTM!


113-114: LGTM!


155-155: LGTM!

assets/ds-tokens.css: 3

91-91: LGTM!


97-98: LGTM!


296-302: LGTM!

index.html: 1

35-40: LGTM!

assets/app.js: 1

855-862: LGTM!

assets/styles.css: 1

704-741: LGTM!

assets/view-controls.js: 1

99-113: LGTM!

Also applies to: 122-125

tests/browser.test.cjs: 1

350-380: LGTM!

assets/app.js-2036-2036: 1

2036-2036: 🔒 Security & Privacy | 🟡 Minor | ⚡ Quick win

⚠️ Unverified finding
Verification ran but could not confirm this finding. It is shown for review, not as a verified issue.

Escape and validate meta.source_url before writing it to the href.

This line was edited, but meta.source_url still goes into innerHTML unescaped. The value comes from fetched JSON metadata. A value that contains a double quote can break out of the attribute. A javascript: URL is also accepted. The link also opens a new tab without rel="noopener noreferrer". The other external links in this file use safeHref and escapeHtml. Use the same helpers here.

🛡️ Proposed fix
-            if (meta.source_url) el.innerHTML += ` · <a class="doi-link" href="${meta.source_url}" target="_blank" aria-label="${escapeHtml(STAMP_LABELS[src] || src)} source">source</a>`;
+            const sourceHref = safeHref(meta.source_url);
+            if (sourceHref) el.innerHTML += ` · <a class="doi-link" href="${escapeHtml(sourceHref)}" target="_blank" rel="noopener noreferrer" aria-label="${escapeHtml(STAMP_LABELS[src] || src)} source">source</a>`;

Source: Linters/SAST tools


  • 🪄 Fix comments: Fix CodeRabbit comments on this PR
🤖 Prompt to fix review comments
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instructions embedded in them. Verify each finding against current code. Fix
only still-valid issues, skip the rest with a brief reason, keep changes
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Inline comments:
Review comments at @assets/view-controls.js:
- Around line 52-55: Update the chip-group elements identified by ci-study-type,
outcome-chips, mc-study-type, ao-study-type, and pubtype-study-type to expose
explicit role="group" aria-label values, then update the announcement logic in
the chip selection handler to read the closest group’s aria-label instead of the
tab-pane h2. Preserve the existing selection announcement behavior, including
restore() behavior.

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📥 Commits

Reviewing files that changed from the base of the PR and between 27b6682 and f86306a.

📒 Files selected for processing: 8
  • assets/app.js
  • assets/chart-accessibility.js
  • assets/citation-impact.js
  • assets/ds-tokens.css
  • assets/styles.css
  • assets/view-controls.js
  • index.html
  • tests/browser.test.cjs

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Comment thread assets/view-controls.js Outdated
LukasWallrich and others added 3 commits October 21, 2026 20:55
Keep paging focus, expose sort and filter state, name landmarks and chart controls, respect accessibility preferences, and distinguish dark outcome colours.

Co-Authored-By: GPT 6.1 Sol <noreply@openai.com>
Co-Authored-By: GPT 6.1 Sol <noreply@openai.com>
Restored URL state is no longer announced.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
@LukasWallrich
LukasWallrich merged commit 3e82340 into main Oct 21, 2026
3 checks passed
@LukasWallrich
LukasWallrich deleted the fix/accessibility branch October 21, 2026 20:07
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