57 lines
2.0 KiB
JavaScript
57 lines
2.0 KiB
JavaScript
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import * as React from 'react';
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import { useId, useMemo } from 'react';
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import { PresenceContext } from '../../context/PresenceContext.mjs';
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import { useConstant } from '../../utils/use-constant.mjs';
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import { PopChild } from './PopChild.mjs';
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const PresenceChild = ({ children, initial, isPresent, onExitComplete, custom, presenceAffectsLayout, mode, }) => {
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const presenceChildren = useConstant(newChildrenMap);
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const id = useId();
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const context = useMemo(() => ({
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id,
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initial,
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isPresent,
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custom,
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onExitComplete: (childId) => {
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presenceChildren.set(childId, true);
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for (const isComplete of presenceChildren.values()) {
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if (!isComplete)
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return; // can stop searching when any is incomplete
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}
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onExitComplete && onExitComplete();
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},
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register: (childId) => {
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presenceChildren.set(childId, false);
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return () => presenceChildren.delete(childId);
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},
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}),
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/**
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* If the presence of a child affects the layout of the components around it,
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* we want to make a new context value to ensure they get re-rendered
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* so they can detect that layout change.
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*/
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presenceAffectsLayout ? undefined : [isPresent]);
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useMemo(() => {
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presenceChildren.forEach((_, key) => presenceChildren.set(key, false));
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}, [isPresent]);
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/**
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* If there's no `motion` components to fire exit animations, we want to remove this
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* component immediately.
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*/
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React.useEffect(() => {
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!isPresent &&
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!presenceChildren.size &&
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onExitComplete &&
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onExitComplete();
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}, [isPresent]);
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if (mode === "popLayout") {
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children = React.createElement(PopChild, { isPresent: isPresent }, children);
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}
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return (React.createElement(PresenceContext.Provider, { value: context }, children));
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};
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function newChildrenMap() {
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return new Map();
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}
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export { PresenceChild };
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