Fix viewability for zero-sized lists (#58000) - #58074
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Summary: VirtualizedList viewability only considered the scroll-axis viewport length. A horizontal list with zero height could therefore report items as viewable. Record the cross-axis length in the same scroll metrics snapshot and require both viewport dimensions to be non-zero for viewability. Changelog: [General][Fixed] - Prevent zero-sized lists from reporting viewable items Reviewed By: zeyap Differential Revision: D116699497
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Summary:
VirtualizedList viewability only considered the scroll-axis viewport length. A horizontal list with zero height could therefore report items as viewable. Record the cross-axis length in the same scroll metrics snapshot and require both viewport dimensions to be non-zero for viewability.
Changelog:
[General][Fixed] - Prevent zero-sized lists from reporting viewable items
Reviewed By: zeyap
Differential Revision: D116699497