[EuiAccordion] Fix resize observer loop error when drag&dropping an accordion #6031
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…ptimizing the ref callback
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Preview documentation changes for this PR: https://eui.elastic.co/pr_6031/ |
thompsongl
approved these changes
Jul 6, 2022
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CI error is from an AXE error in the reproduction case and will be resolved when the revert commit is reverted |
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Agreed, this is a super elegant fix/workaround to the problem! Huge kudos! |
cee-chen
reviewed
Jul 6, 2022
Co-authored-by: Constance <constancecchen@users.noreply.github.com>
This reverts commit fa3f198.
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Preview documentation changes for this PR: https://eui.elastic.co/pr_6031/ |
cee-chen
approved these changes
Jul 6, 2022
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Summary
Closes #5903
Found this by attempting to automatically pause/resume all EuiResizeObserver/useResizeObserver in response to drag&drop events. Was debugging why the error still happened with everything paused, at it turned out the re-renders in EuiAccordion were recreating the provided
reffunction causing React to call that function withnulland then the sameElementas it was before. This behaviour bypassedEuiObserver::updateChildNode's 'memoizing' logic and instantiated new observers during the drag operation.After fixing the ref call loop the error went away even without pausing the observers 🎆
Reproduction & testing:
I updated the Drag and drop example page to have only the reproduction setup, you must also enable devtools' responsive layout, select ipad mini, and set the zoom level to 75%.
resizeobserveraccordion.mov
Checklist
- [ ] Checked in both light and dark modes- [ ] Checked in mobile- [ ] Checked in Chrome, Safari, Edge, and Firefox- [ ] Props have proper autodocs and playground toggles- [ ] Added documentation- [ ] Checked Code Sandbox works for any docs examples- [ ] Added or updated jest and cypress tests- [ ] Updated the Figma library counterpart