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import { useEffect, useRef, useState } from '@wordpress/element'; |
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|
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import { addMarker, InitGoogleMaps } from './gmaps-api'; |
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|
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export default function MapBlock(props) { |
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const { apiUrl, options, markers, onChangeMarkers } = props; |
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|
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const [instance, setInstance] = useState(null); |
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const mapRef = useRef(null); |
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const markersRef = useRef(null); |
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|
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// Load Google Maps API and initialize the map |
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useEffect(() => { |
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if (!mapRef.current) { |
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return; |
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} |
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|
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if (!instance) { |
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InitGoogleMaps( |
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mapRef.current, |
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{ apiUrl, ...options }, |
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(newInstance) => { |
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setInstance(newInstance); |
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} |
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); |
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} else { |
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instance.setOptions(options); |
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} |
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}, [apiUrl, instance, options]); |
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|
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// Add markers to the map. |
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useEffect(() => { |
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if (!instance || !markers || !markers.length) { |
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return; |
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} |
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|
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// Reset old markers. |
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if (markersRef.current?.length) { |
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markersRef.current.forEach((marker) => { |
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marker.setMap(null); |
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}); |
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} |
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|
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markersRef.current = []; |
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|
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markers.forEach((markerData, i) => { |
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const thereIsIcon = |
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markerData.iconImageURL && |
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markerData.iconImageCustomWidth && |
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markerData.iconImageWidth && |
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markerData.iconImageHeight; |
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let iconURL = null; |
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let iconWidth = null; |
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let iconHeight = null; |
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if (thereIsIcon) { |
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const iconImageCustomHeight = |
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markerData.iconImageCustomWidth * |
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(markerData.iconImageHeight / markerData.iconImageWidth); |
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|
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iconURL = markerData.iconImageURL; |
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iconWidth = markerData.iconImageCustomWidth; |
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iconHeight = iconImageCustomHeight; |
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} |
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|
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const { marker } = addMarker({ |
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map: instance, |
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lat: markerData.lat, |
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lng: markerData.lng, |
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title: markerData.title, |
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description: markerData.infoWindowText, |
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iconURL, |
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iconWidth, |
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iconHeight, |
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draggable: true, |
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}); |
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|
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markersRef.current.push(marker); |
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|
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// Drag markers. |
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window.google.maps.event.addListener(marker, 'dragend', (event) => { |
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const lat = event.latLng.lat(); |
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const lng = event.latLng.lng(); |
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|
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const newMarkers = Object.assign([], markers); |
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|
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newMarkers[i].lat = lat; |
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newMarkers[i].lng = lng; |
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|
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onChangeMarkers(newMarkers); |
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}); |
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}); |
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}, [apiUrl, instance, options, markers, onChangeMarkers]); |
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|
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return ( |
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<div |
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ref={mapRef} |
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className="ghostkit-google-maps-wrap" |
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style={{ minHeight: '100%' }} |
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/> |
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); |
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} |
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|
