fix(Table): avoid repeated header layout measurements - #12667
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Navigate logical layers of code changes, visualize relationships, and explore their blast radius. No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info⚙️ Run configurationConfiguration used: Organization UI Review profile: CHILL Plan: Advanced Run ID: 📒 Files selected for processing (2)
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Included review availability: This review used your included allowance. Your plan provides up to 4 included reviews per hour; 3 remain after this review. WalkthroughTh now exposes its header cell through an internal ref. It measures truncation initially and updates the measurement when observed cell content, relevant attributes, or size changes. ChangesHeader truncation measurement
Priority: ⬇️ Low Estimated code review effort: 2 (Simple) | ~10 minutes Change: Bug fix Merge Risk: ⚪ Minimal · up to The change updates header focusability as content and layout change while preserving forwarded-ref behavior. Static review found no actionable merge risk. Security Architecture ReviewSecurity architecture risk: 🔵 Low · up to The change is confined to table-header measurement and reference handling. No expanded permissions or security-control bypass was identified. Cleanup has a timing edge case, and some lifecycle scenarios remain unverified, but no security impact is established. Retained concerns Security review detailsSecurity Blast Radius
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Actionable comments posted: 4
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Inline comments:
Review comments at @packages/react-table/src/components/Table/Th.tsx:
- Line 216: Update the truncation measurement path in ThBase around
getResizeObserver so it also detects header content changes when the cell’s
width stays the same, then refreshes truncated state and keyboard focusability.
Add a test where a child updates its header text without changing the cell
width.
- Line 217: Update the effect dependency list in the Th component so recreated
JSX children with unchanged displayed content do not trigger width measurements;
use a stable content-change signal instead of children identity, while still
measuring when the displayed content changes. Preserve the other dependencies,
including additionalContent, modifier, width, className, and MergedComponent.
- Line 217: Update the measurement effect in the Th component to depend on
transformedChildren, so changes driven by infoProps trigger remeasurement and
refresh the truncated state and tabIndex.
- Line 206: Update the useImperativeHandle call in Th so its dependencies track
replacement of the header element, preventing unchanged callback refs from being
detached and reassigned on unrelated rerenders. Add a test that rerenders with
the same callback ref and verifies it remains attached without redundant cleanup
and registration.
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ℹ️ Review info
⚙️ Run configuration
Configuration used: Organization UI
Review profile: CHILL
Plan: Advanced
Run ID: 582feebe-aa65-4761-8f7d-33ebc82ae616
📒 Files selected for processing (2)
packages/react-table/src/components/Table/Th.tsxpackages/react-table/src/components/Table/__tests__/Th.test.tsx
Included review availability: This review used your included allowance. Your plan provides up to 4 included reviews per hour; 3 remain after this review.
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Kept forwarded refs stable and switched truncation updates to actual content changes. Added coverage for child-local updates, info controls, and unchanged JSX; table tests and three-browser checks pass. |
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What: Closes #12660
Keep forwarded header refs stable and update truncation when the rendered content or available width changes. This avoids layout reads on unrelated rerenders while covering child-local updates, info controls, and root-element changes.
Validated 187 table tests and 34 snapshots, the table build, changed-file lint, and Chromium/Firefox/WebKit checks. Regression coverage verifies stable refs, unchanged JSX, content updates, and observer cleanup.
Assisted-by: Codex
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