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71 lines
2.6 KiB
71 lines
2.6 KiB
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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