110 lines
4.1 KiB
JavaScript
110 lines
4.1 KiB
JavaScript
import * as React from 'react';
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import { useTabsterAttributes } from '@fluentui/react-tabster';
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import { getIntrinsicElementProps, mergeCallbacks, useEventCallback, useMergedRefs, slot, omit } from '@fluentui/react-utilities';
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import { useTabListContext_unstable } from '../TabList/TabListContext';
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/**
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* Create the state required to render Tab.
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*
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* The returned state can be modified with hooks such as useTabStyles_unstable,
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* before being passed to renderTab_unstable.
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*
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* @param props - props from this instance of Tab
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* @param ref - reference to root HTMLElement of Tab
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*/ export const useTab_unstable = (props, ref)=>{
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const { content, disabled: tabDisabled = false, icon, onClick, onFocus, value } = props;
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const appearance = useTabListContext_unstable((ctx)=>ctx.appearance);
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const reserveSelectedTabSpace = useTabListContext_unstable((ctx)=>ctx.reserveSelectedTabSpace);
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const selectTabOnFocus = useTabListContext_unstable((ctx)=>ctx.selectTabOnFocus);
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const listDisabled = useTabListContext_unstable((ctx)=>ctx.disabled);
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const selected = useTabListContext_unstable((ctx)=>ctx.selectedValue === value);
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const onRegister = useTabListContext_unstable((ctx)=>ctx.onRegister);
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const onUnregister = useTabListContext_unstable((ctx)=>ctx.onUnregister);
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const onSelect = useTabListContext_unstable((ctx)=>ctx.onSelect);
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const size = useTabListContext_unstable((ctx)=>ctx.size);
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const vertical = useTabListContext_unstable((ctx)=>!!ctx.vertical);
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const disabled = listDisabled || tabDisabled;
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const innerRef = React.useRef(null);
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const onSelectCallback = (event)=>onSelect(event, {
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value
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});
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const onTabClick = useEventCallback(mergeCallbacks(onClick, onSelectCallback));
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const onTabFocus = useEventCallback(mergeCallbacks(onFocus, onSelectCallback));
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const focusProps = useTabsterAttributes({
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focusable: {
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isDefault: selected
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}
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});
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React.useEffect(()=>{
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onRegister({
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value,
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ref: innerRef
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});
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return ()=>{
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onUnregister({
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value,
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ref: innerRef
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});
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};
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}, [
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onRegister,
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onUnregister,
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innerRef,
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value
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]);
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const iconSlot = slot.optional(icon, {
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elementType: 'span'
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});
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const contentSlot = slot.always(content, {
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defaultProps: {
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children: props.children
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},
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elementType: 'span'
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});
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const contentReservedSpace = content && typeof content === 'object' ? omit(content, [
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'ref'
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]) : content;
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const iconOnly = Boolean((iconSlot === null || iconSlot === void 0 ? void 0 : iconSlot.children) && !contentSlot.children);
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return {
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components: {
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root: 'button',
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icon: 'span',
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content: 'span',
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contentReservedSpace: 'span'
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},
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root: slot.always(getIntrinsicElementProps('button', {
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// FIXME:
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// `ref` is wrongly assigned to be `HTMLElement` instead of `HTMLButtonElement`
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// but since it would be a breaking change to fix it, we are casting ref to it's proper type
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ref: useMergedRefs(ref, innerRef),
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role: 'tab',
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type: 'button',
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// aria-selected undefined indicates it is not selectable
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// according to https://www.w3.org/TR/wai-aria-1.1/#aria-selected
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'aria-selected': disabled ? undefined : `${selected}`,
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...focusProps,
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...props,
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disabled,
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onClick: onTabClick,
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onFocus: selectTabOnFocus ? onTabFocus : onFocus
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}), {
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elementType: 'button'
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}),
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icon: iconSlot,
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iconOnly,
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content: contentSlot,
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contentReservedSpace: slot.optional(contentReservedSpace, {
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renderByDefault: !selected && !iconOnly && reserveSelectedTabSpace,
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defaultProps: {
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children: props.children
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},
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elementType: 'span'
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}),
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appearance,
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disabled,
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selected,
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size,
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value,
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vertical
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};
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};
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