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fix(stepper): prevent content shift in vertical stepper - 20.1.x #16833

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Merged
ChronosSF merged 4 commits into from
Feb 4, 2026
Merged

fix(stepper): prevent content shift in vertical stepper - 20.1.x #16833

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c887516
fix(stepper): prevent content shift in vertical stepper
georgianastasov Jan 30, 2026
5c4723c
Merge branch '20.1.x' into ganastasov/fix-16822-20.1.x
kacheshmarova Feb 2, 2026
0d8e15f
fix(stepper): remove padding shift on active step to avoid content jump
georgianastasov Feb 3, 2026
81a8499
Merge branch '20.1.x' into ganastasov/fix-16822-20.1.x
georgianastasov Feb 3, 2026
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7 changes: 1 addition & 6 deletions projects/igniteui-angular/src/lib/core/styles/components/stepper/_stepper-theme.scss
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Original file line number Diff line number Diff line change
Expand Up @@ -350,6 +350,7 @@

%igx-stepper__step-content-wrapper {
margin-inline-start: $v-line-indent;
padding-inline-start: $v-line-indent;
position: relative;
min-height: if($variant == 'indigo', rem(24px), rem(32px));

Expand All @@ -364,12 +365,6 @@
}
}

[aria-selected='true'] {
%igx-stepper__step-content-wrapper {
padding-inline-start: $v-line-indent;
}
}

@if $variant == 'indigo' {
[aria-selected='true'] {
%igx-stepper__step-content-wrapper {
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26 changes: 26 additions & 0 deletions projects/igniteui-angular/src/lib/stepper/stepper.component.spec.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -738,6 +738,32 @@ describe('Rendering Tests', () => {
expect(Math.abs(width - height)).toBeLessThan(1.5);
expect(Math.abs(width - parseFloat(minWidth))).toBeLessThan(1.5);
}));

it('should not shift step content horizontally when navigating between steps in vertical mode', fakeAsync(() => {
const indicatorFix = TestBed.createComponent(IgxStepperIndicatorNoShrinkComponent);
indicatorFix.detectChanges();
const indicatorStepper = indicatorFix.componentInstance.stepper;

const getContentWrapperStyles = (stepIndex: number) => {
const contentWrapper = indicatorStepper.steps[stepIndex].nativeElement.querySelector('.igx-stepper__step-content-wrapper') as HTMLElement;
const styles = window.getComputedStyle(contentWrapper);
return {
paddingInlineStart: styles.paddingInlineStart || styles.paddingLeft,
marginInlineStart: styles.marginInlineStart || styles.marginLeft
};
};

const step0ActiveStyles = getContentWrapperStyles(0);

indicatorStepper.navigateTo(1);
indicatorFix.detectChanges();
tick(500);

const step0InactiveStyles = getContentWrapperStyles(0);

expect(step0InactiveStyles.paddingInlineStart).toBe(step0ActiveStyles.paddingInlineStart);
expect(step0InactiveStyles.marginInlineStart).toBe(step0ActiveStyles.marginInlineStart);
}));
});

describe('Keyboard navigation', () => {
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