memos/web/src/components/LeafletMap.tsx

73 lines
2.1 KiB
TypeScript

import { DivIcon, LatLng } from "leaflet";
import { MapPinIcon } from "lucide-react";
import { useEffect, useState } from "react";
import ReactDOMServer from "react-dom/server";
import { MapContainer, Marker, TileLayer, useMapEvents } from "react-leaflet";
const markerIcon = new DivIcon({
className: "relative border-none",
html: ReactDOMServer.renderToString(<MapPinIcon className="absolute bottom-1/2 -left-1/2" fill="pink" size={24} />),
});
interface MarkerProps {
position: LatLng | undefined;
onChange: (position: LatLng) => void;
readonly?: boolean;
}
const LocationMarker = (props: MarkerProps) => {
const [position, setPosition] = useState(props.position);
const map = useMapEvents({
click(e) {
if (props.readonly) {
return;
}
setPosition(e.latlng);
map.locate();
// Call the parent onChange function.
props.onChange(e.latlng);
},
locationfound() {},
});
useEffect(() => {
map.attributionControl.setPrefix("");
map.attributionControl.addAttribution("<a href='https://www.openstreetmap.org/copyright'>OpenStreetMap</a>");
map.locate();
}, []);
// Keep marker and map in sync with external position updates
useEffect(() => {
if (props.position) {
setPosition(props.position);
map.setView(props.position);
} else {
setPosition(undefined);
}
}, [props.position, map]);
return position === undefined ? null : <Marker position={position} icon={markerIcon}></Marker>;
};
interface MapProps {
readonly?: boolean;
latlng?: LatLng;
onChange?: (position: LatLng) => void;
}
const DEFAULT_CENTER_LAT_LNG = new LatLng(48.8584, 2.2945);
const LeafletMap = (props: MapProps) => {
const position = props.latlng || DEFAULT_CENTER_LAT_LNG;
return (
<MapContainer className="w-full h-72" center={position} zoom={13} scrollWheelZoom={false}>
<TileLayer url="https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png" />
<LocationMarker position={position} readonly={props.readonly} onChange={props.onChange ? props.onChange : () => {}} />
</MapContainer>
);
};
export default LeafletMap;