56 lines
1.9 KiB
JavaScript
56 lines
1.9 KiB
JavaScript
'use client';
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import { useArrowNavigationGroup } from '@fluentui/react-tabster';
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import { getIntrinsicElementProps, slot, useIsomorphicLayoutEffect } from '@fluentui/react-utilities';
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import * as React from 'react';
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import { useCarouselContext_unstable as useCarouselContext } from '../CarouselContext';
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import { useControllableState } from '@fluentui/react-utilities';
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/**
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* Create the state required to render CarouselNav.
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*
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* The returned state can be modified with hooks such as useCarouselNavStyles_unstable,
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* before being passed to renderCarouselNav_unstable.
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*
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* @param props - props from this instance of CarouselNav
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* @param ref - reference to root HTMLDivElement of CarouselNav
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*/ export const useCarouselNav_unstable = (props, ref)=>{
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const { appearance } = props;
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const focusableGroupAttr = useArrowNavigationGroup({
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circular: false,
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axis: 'horizontal',
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memorizeCurrent: false,
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// eslint-disable-next-line @typescript-eslint/naming-convention
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unstable_hasDefault: true
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});
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// Users can choose controlled or uncontrolled, if uncontrolled, the default is initialized by carousel context
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const [totalSlides, setTotalSlides] = useControllableState({
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state: props.totalSlides,
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initialState: 0
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});
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const subscribeForValues = useCarouselContext((ctx)=>ctx.subscribeForValues);
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useIsomorphicLayoutEffect(()=>{
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return subscribeForValues((data)=>{
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setTotalSlides(data.navItemsCount);
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});
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}, [
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subscribeForValues,
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setTotalSlides
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]);
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return {
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totalSlides,
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appearance,
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renderNavButton: props.children,
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components: {
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root: 'div'
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},
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root: slot.always(getIntrinsicElementProps('div', {
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ref,
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role: 'tablist',
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...props,
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...focusableGroupAttr,
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children: null
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}), {
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elementType: 'div'
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})
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};
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};
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