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32 lines
1003 B
32 lines
1003 B
2 years ago
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import { useEffect, useRef } from 'react';
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export function createElementObject(instance, context, container) {
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return Object.freeze({
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instance,
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context,
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container
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});
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}
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export function createElementHook(createElement, updateElement) {
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if (updateElement == null) {
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return function useImmutableLeafletElement(props, context) {
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return useRef(createElement(props, context));
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};
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}
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return function useMutableLeafletElement(props, context) {
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const elementRef = useRef(createElement(props, context));
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const propsRef = useRef(props);
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const { instance } = elementRef.current;
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useEffect(function updateElementProps() {
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if (propsRef.current !== props) {
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updateElement(instance, props, propsRef.current);
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propsRef.current = props;
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}
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}, [
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instance,
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props,
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context
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]);
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return elementRef;
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};
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}
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