Fix EuiFlyout z-index values for managed and unmanaged flyouts
#9169
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…nd `maskProps` combinations
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Nov 4, 2025
| ...dynamicStyles, | ||
| ...minWidthOverride, | ||
| ...(finalMaxWidth ? { maxWidth: finalMaxWidth } : {}), | ||
| zIndex, |
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z-index is now defined inside the inline style tag. It'll become dynamic in #9160, so I thought it's best if I structure the code in a way that makes that work a little simpler.
tkajtoch
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Nov 4, 2025
| }; | ||
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| /** | ||
| * TODO: Calculate z-index values so that the latest flyout is always on top |
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This is to be addressed in a separate PR
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cc @tkajtoch |
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tsullivan
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…uts (elastic#9169)" This reverts commit 3680ae4.
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Summary
Resolves #9141
This PR fixes the issue with
z-indexvalues of EuiFlyout's overlay mask.When I initially refactored the EuiOverlayMask rendering logic in EuiFlyout I forgot to pass
headerZindexLocation="below"which was there before. This was impossible to notice when testing in Storybook, and hid almost perfectly when testing builds if the flyout system branch in Kibana. I noticed it by accident when testing different flyout combinations, but it was also reported during other people's testing - see the linked issue above.This PR brings back the rarely (never?) used z-index of 6000 for 100% compatibility with previous versions of EUI. Furthermore, the added internal hook is a prep work for intelligent z-index management needed to f i x #9160.
I'm skipping the changelog on this one since this bug shouldn't exist in the first place, and it was never released to the public. The upcoming changelogs describe the correct (after this fix) behavior well enough.
Why are we making this change?
To fix buggy behavior introduced in recent changes to EuiFlyout and the flyout system.
Impact to users
No negative impact to users. This isn't a breaking change.
QA
gh pr checkout 241722yarn kbn bootstrapTest if flyouts and their overlay masks look as expected, specifically these variants:
General checklist