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Navigation Link: Avoid unnecessary re-renders #40696
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talldan
approved these changes
Apr 29, 2022
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Nice work! 🎉
I cherry picked this change into |
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Labels
[Block] Navigation Link
Affects the Navigation Link Block
[Type] Performance
Related to performance efforts
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What?
Discovered while testing #40357.
The Navigation Link block was constantly re-rendering even when typing into a different block.
Why?
Re-rendering affected typing performance, especially if you've got a few large Navigation blocks on the page.
How?
The re-rendering issue was caused by
blockTransforms
changing on every store update. TheNavigationLinkEdit
component doesn't need this state, so I moveduseSelect
insideLinkControlTransforms
.P.S. While this is a valid fix. As a follow-up, we might want to look into the
getBlockTransformItems
selector performance.Testing Instructions
Screenshots or screencast
Before
CleanShot.2022-04-28.at.21.16.21.mp4
After
CleanShot.2022-04-28.at.21.17.11.mp4