feat(nav): add horizontal selected accent - #8600
gabipodolnikova wants to merge 4 commits into
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Included review availability: This review used your included allowance. Your plan provides up to 4 included reviews per hour; 3 remain after this review. WalkthroughHorizontal navigation styles display item accents as bars along the bottom edge. They adjust list spacing and overflow, allow vertical overflow in a toolbar container that contains the nav, and set the accent offset for horizontal subnavs. ChangesHorizontal navigation accent
Priority: ⬇️ Low Estimated code review effort: 2 (Simple) | ~10 minutes Change: Feature Merge Risk: ⚪ Minimal · up to The horizontal selected accent retains scrolling and supports the inspected subnav and toolbar layouts. No actionable merge-blocking risk remains; normal visual checks should confirm rendering. Architecture SummaryArchitecture risk: 🔵 Low · up to The change affects 1 system. Changed systems: Architecture concerns Review detailsSystems and components
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Preview: https://pf-pr-8600.surge.sh A11y report: https://pf-pr-8600-a11y.surge.sh |
jcmill
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jcmill
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This one is tricky with the two overflow layers. I left a few comments and wanted to ask whether we intend to animate the accent when .pf-m-current is applied. The base accent scales on the Y axis, so the horizontal nav may need to switch that animation to the X axis.
I also noticed that, in the scrollable version, the added padding increases the nav’s footprint and causes the __scroll-button pseudo-element to extend beyond the visible buttons. If we need to keep the extra space for the accent, we may need to compensate on the scroll-button pseudo-element, perhaps with a negative block-end inset or, I hate to say it, a negative margin so the separator aligns with the buttons.
| // - Nav horizontal | ||
| .#{$nav}:where(.pf-m-horizontal) { | ||
| --#{$nav}__item--accent--content: none; | ||
| --#{$nav}__item--accent--content: ""; |
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One small note: This line looks redundant because __item::before already falls back to content: "" on 329.
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| .#{$nav}__item::before { | ||
| inset-block-start: auto; | ||
| inset-block-end: calc(var(--#{$nav}--m-horizontal__list--PaddingBlockEnd) * -1); |
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| inset-block-end: calc(var(--#{$nav}--m-horizontal__list--PaddingBlockEnd) * -1); | |
| inset-block-end: var(--#{$nav}__item--accent--offset); |
| inset-block-end: calc(var(--#{$nav}--m-horizontal__list--PaddingBlockEnd) * -1); | ||
| inset-inline-start: 0; | ||
| inset-inline-end: 0; | ||
| z-index: 1; |
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just a nit, we aren't setting this for our other indicators so we probably don't really need to set the z-index.
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@jcmill I confirmed the intended behavior in PF-4207: the horizontal selected accent should reuse the docked Nav animation. I switched the horizontal accent reveal to the X axis, while keeping the existing selected-state transition. The extra bottom padding is intentional to make room for the accent. For scrollable horizontal Nav, I compensated the I also adjusted the accent offset to derive from the active horizontal list padding so the accent remains visible for both regular horizontal Nav and horizontal subnav. |
mcoker
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Tried a couple of things and I think the simplest is what @jcmill mentioned about using a negative margin. A tricky part is we have to get around the overflow hidden on the nav list, the nav wrapper, and the toolbar item that holds the nav 😅
Here's a changeset that seems to work. It basically:
- uses a negative margin on the nav element to offset the height from the list padding
- hides (clips) left/right overflow but leaves top/bottom overflow visible on the nav wrapper and toolbar item.
- uses the existing offset var to create the padding/margin
- uses
align-itemsto align the nav and scroll buttons instead of the pseudo element on the scroll buttons - modifies the
overflowon the toolbar item that contains the nav, instead of modifying the base styling of.pf-v6-c-toolbar__item.pf-m-overflow-container(probably breaking) or users needing to update the class on the toolbar item (you should just be able to remove.pf-m-overflow-container)
diff --git a/src/patternfly/components/Nav/nav.scss b/src/patternfly/components/Nav/nav.scss
index eff63606d..2066cbd5b 100644
--- a/src/patternfly/components/Nav/nav.scss
+++ b/src/patternfly/components/Nav/nav.scss
@@ -507,11 +507,17 @@
// - Nav horizontal
.#{$nav}:where(.pf-m-horizontal) {
- --#{$nav}--m-horizontal__list--PaddingBlockEnd: var(--pf-t--global--spacer--sm);
- --#{$nav}__item--accent--offset: calc(var(--#{$nav}--m-horizontal__list--PaddingBlockEnd) * -1);
+ --#{$nav}--m-horizontal__list--PaddingBlockEnd: calc(var(--#{$nav}__item--accent--offset) * -1);
+ align-items: start;
padding: 0;
- overflow: hidden;
+ margin-block-end: var(--#{$nav}__item--accent--offset);
+ overflow-x: clip;
+
+ .#{$toolbar}__item.pf-m-overflow-container:has(> &) {
+ overflow-x: clip;
+ overflow-y: visible;
+ }
// update to flex
&,
@@ -570,9 +576,5 @@
&.pf-m-scrollable {
--#{$nav}--m-horizontal__list--PaddingInlineStart: var(--#{$nav}--m-horizontal--m-scrollable__list--PaddingInlineStart);
--#{$nav}--m-horizontal__list--PaddingInlineEnd: var(--#{$nav}--m-horizontal--m-scrollable__list--PaddingInlineEnd);
-
- .#{$nav}__scroll-button::before {
- inset-block-end: var(--#{$nav}--m-horizontal__list--PaddingBlockEnd);
- }
}
}
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@mcoker Thank you Michael! I had to add one line in addition to your suggested changes, because the subnav's accents disappeared. |
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Inline comments:
Review comments at @src/patternfly/components/Nav/nav.scss:
- Around line 517-520: Extend the Nav overflow override selector to also match
`.pf-m-overflow-container` toolbar groups containing the Nav as a direct child.
Keep the existing overflow declarations unchanged.
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src/patternfly/components/Nav/nav.scss
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Fixes #8406
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