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11 changes: 7 additions & 4 deletions packages/react/src/components/Tabs/Tabs.tsx
Original file line number Diff line number Diff line change
Expand Up @@ -438,9 +438,10 @@ function TabList({
});

useEffect(() => {
//adding 1 in calculation for firefox support
setIsNextButtonVisible(
ref.current
? scrollLeft + buttonWidth + ref.current.clientWidth <
? scrollLeft + buttonWidth + ref.current.clientWidth + 1 <
ref.current.scrollWidth
: false
);
Expand All @@ -450,7 +451,7 @@ function TabList({
setIsScrollable(ref.current.scrollWidth > ref.current.clientWidth);
}
}
}, [scrollLeft, children, dismissable]);
}, [scrollLeft, children, dismissable, isScrollable]);

useEffectOnce(() => {
if (tabs.current[selectedIndex]?.disabled) {
Expand All @@ -467,12 +468,14 @@ function TabList({

useIsomorphicEffect(() => {
if (ref.current) {
setIsScrollable(ref.current.scrollWidth > ref.current.clientWidth);
//adding 1 in calculation for firefox support
setIsScrollable(ref.current.scrollWidth > ref.current.clientWidth + 1);
}

function handler() {
if (ref.current) {
setIsScrollable(ref.current.scrollWidth > ref.current.clientWidth);
//adding 1 in calculation for firefox support
setIsScrollable(ref.current.scrollWidth > ref.current.clientWidth + 1);
}
}

Expand Down
9 changes: 5 additions & 4 deletions packages/styles/scss/components/tabs/_tabs.scss
Original file line number Diff line number Diff line change
Expand Up @@ -112,6 +112,7 @@
}

.#{$prefix}--tab--overflow-nav-button svg {
z-index: 2;
fill: $icon-primary;
}

Expand Down Expand Up @@ -155,16 +156,16 @@
.#{$prefix}--tab--overflow-nav-button--previous::before {
position: absolute;
z-index: 1;
background: linear-gradient(to left, rgba(255, 255, 255, 0), $background);
background: $background;
block-size: 100%;
content: '';
inline-size: $spacing-03;
inset-inline-end: -$spacing-03;
inline-size: $spacing-08;
inset-inline-end: 0;
}

&.#{$prefix}--tabs--contained
.#{$prefix}--tab--overflow-nav-button--previous::before {
background-image: linear-gradient(
background: linear-gradient(
to left,
rgba(255, 255, 255, 0),
$layer-accent
Expand Down