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React Mapbox-GL draggable marker component
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import MapboxGL from 'mapbox-gl'; | |
import React, { useEffect, useRef, useState, MutableRefObject } from 'react'; | |
type CoordinatesType = [number, number]; | |
interface DraggableMarkerProps { | |
coordinates: CoordinatesType; | |
map?: MapboxGL.Map; | |
children?: any; | |
} | |
export const DraggableMarkerComponent = ({ coordinates, map, children }: DraggableMarkerProps) => { | |
const element = useRef() as MutableRefObject<HTMLDivElement>; | |
const [marker, setMarker] = useState<MapboxGL.Marker>(); | |
useEffect(() => { | |
if (marker && map) { | |
marker.setLngLat(coordinates).addTo(map); | |
} | |
return () => { | |
if (marker) { | |
marker.remove(); | |
} | |
} | |
}, [marker, map]); | |
useEffect(() => { | |
if (element.current !== null && map) { | |
setMarker(new MapboxGL.Marker({ | |
draggable: true, element: element.current | |
})); | |
} | |
}, [element, map]); | |
return (<div ref={element}>{children}</div>); | |
} |
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