fix: stabilize lane assignments in masonry layout#1080
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piecyk merged 3 commits intoTanStack:mainfrom Nov 26, 2025
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🦋 Changeset detectedLatest commit: 2ee9f57 The changes in this PR will be included in the next version bump. This PR includes changesets to release 7 packages
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Added lane assignment caching to prevent items from jumping between lanes when viewport is resized. Previously, items could shift to different lanes during resize due to recalculating "shortest lane" with slightly different heights. Changes: - Added `laneAssignments` cache (Map<index, lane>) to persist lane assignments - Lane cache is cleared when `lanes` option changes or `measure()` is called - Lane cache is cleaned up when `count` decreases (removes stale entries) - Lane cache is cleared when virtualizer is disabled
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Use laneLastIndex array to track last item per lane instead of iterating through all measurements
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@seob717 Looks great overall, the lane caching + settling logic makes the masonry layout much more stable on resize. |
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This was referenced Jan 8, 2026
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Added lane assignment caching to prevent items from jumping between lanes when viewport is resized. Previously, items could shift to different lanes during resize due to recalculating "shortest lane" with slightly different heights.
Changes:
laneAssignmentscache (Map<index, lane>) to persist lane assignmentslanesoption changes ormeasure()is calledcountdecreases (removes stale entries)🤖 Generated with Claude Code
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