fix(virtualized-lists): invalidate content length on orientation change - #57871
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fallintoplace wants to merge 1 commit into
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fix(virtualized-lists): invalidate content length on orientation change#57871fallintoplace wants to merge 1 commit into
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Summary
When a list changes between vertical and horizontal layouts,
ListMetricsAggregatorresets its cell measurements but keeps_contentLength. That value belongs to the old scrolling axis. In horizontal RTL mode, it can then be used to calculate a cell offset before the new content layout is observed.This clears
_contentLengthduring horizontal orientation changes so RTL calculations wait for the new content length. The reset was present in the original orientation invalidation logic and was removed when bottom-up layout support was removed.Changelog:
[GENERAL] [FIXED] - Invalidate list content length when orientation changes.
Test Plan:
yarn jest packages/virtualized-lists/Lists/__tests__/ListMetricsAggregator-test.js --runInBand.