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72 lines
2.6 KiB
72 lines
2.6 KiB
2 years ago
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import { LeafletProvider, addClassName, useLeafletContext } from '@react-leaflet/core';
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import React, { forwardRef, useState, useEffect, useImperativeHandle, useMemo } from 'react';
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import { createPortal } from 'react-dom';
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const DEFAULT_PANES = [
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'mapPane',
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'markerPane',
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'overlayPane',
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'popupPane',
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'shadowPane',
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'tilePane',
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'tooltipPane',
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];
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function omitPane(obj, pane) {
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const { [pane]: _p , ...others } = obj;
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return others;
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}
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function createPane(name, props, context) {
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if (DEFAULT_PANES.indexOf(name) !== -1) {
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throw new Error(`You must use a unique name for a pane that is not a default Leaflet pane: ${name}`);
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}
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if (context.map.getPane(name) != null) {
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throw new Error(`A pane with this name already exists: ${name}`);
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}
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const parentPaneName = props.pane ?? context.pane;
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const parentPane = parentPaneName ? context.map.getPane(parentPaneName) : undefined;
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const element = context.map.createPane(name, parentPane);
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if (props.className != null) {
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addClassName(element, props.className);
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}
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if (props.style != null) {
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Object.keys(props.style).forEach((key)=>{
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// @ts-ignore
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element.style[key] = props.style[key];
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});
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}
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return element;
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}
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function PaneComponent(props, forwardedRef) {
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const [paneName] = useState(props.name);
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const [paneElement, setPaneElement] = useState(null);
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useImperativeHandle(forwardedRef, ()=>paneElement, [
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paneElement
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]);
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const context = useLeafletContext();
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const newContext = useMemo(()=>({
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...context,
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pane: paneName
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}), [
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context
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]);
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useEffect(()=>{
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setPaneElement(createPane(paneName, props, context));
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return function removeCreatedPane() {
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const pane = context.map.getPane(paneName);
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pane?.remove?.();
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// @ts-ignore map internals
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if (context.map._panes != null) {
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// @ts-ignore map internals
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context.map._panes = omitPane(context.map._panes, paneName);
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// @ts-ignore map internals
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context.map._paneRenderers = omitPane(// @ts-ignore map internals
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context.map._paneRenderers, paneName);
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}
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};
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// eslint-disable-next-line react-hooks/exhaustive-deps
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}, []);
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return props.children != null && paneElement != null ? /*#__PURE__*/ createPortal(/*#__PURE__*/ React.createElement(LeafletProvider, {
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value: newContext
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}, props.children), paneElement) : null;
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}
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export const Pane = /*#__PURE__*/ forwardRef(PaneComponent);
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