google-map-react/develop/GMapOptim.js at master · boyuan-chen/google-map-react · GitHub

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// Example to test the React Reconciler. This example

// is 100x faster in development mode,

// and 1.5-2x faster with NODE_ENV==='production'

// The idea was to not draw map children on hovers, but subscribe inside children on hover change

// see ./markers/ReactiveMarker source

import React from 'react';

import {

compose,

defaultProps,

withHandlers,

withState,

withProps,

withPropsOnChange,

} from 'recompose';

import { createSelector } from 'reselect';

import { susolvkaCoords, generateMarkers } from './data/fakeData';

import GoogleMapReact from '../src';

// import SimpleMarker from './markers/SimpleMarker';

import ReactiveMarker from './markers/ReactiveMarker';

import ptInBounds from './utils/ptInBounds';

import props2Stream from './utils/props2Stream';

import withStateSelector from './utils/withStateSelector';

import { GOOGLE_API_KEY } from './config/Google_API_key';

export const gMap = (

{

style,

hoverDistance,

options,

mapParams: { center, zoom },

onChange,

onChildMouseEnter,

onChildMouseLeave,

markers,

draggable,

}

) => (

<GoogleMapReact

bootstrapURLKeys={{

key: GOOGLE_API_KEY,

}}

style={style}

options={options}

draggable={draggable}

hoverDistance={hoverDistance}

zoom={zoom}

center={center}

onChange={onChange}

onChildMouseEnter={onChildMouseEnter}

onChildMouseLeave={onChildMouseLeave}

experimental

{markers}

</GoogleMapReact>

);

export const gMapHOC = compose(

defaultProps({

clusterRadius: 60,

hoverDistance: 30,

options: {

minZoom: 3,

maxZoom: 15,

style: {

position: 'relative',

margin: 0,

padding: 0,

flex: 1,

}),

// withState so you could change markers if you want

withStateSelector('markers', 'setMarkers', () =>

createSelector(

({ route: { markersCount = 20 } }) => markersCount,

markersCount => generateMarkers(markersCount)

)),

withState('hoveredMarkerId', 'setHoveredMarkerId', -1),

withState('mapParams', 'setMapParams', { center: susolvkaCoords, zoom: 6 }),

// describe events

withHandlers({

onChange: ({ setMapParams }) =>

({ center, zoom, bounds }) => {

setMapParams({ center, zoom, bounds });

onChildMouseEnter: ({ setHoveredMarkerId }) =>

(hoverKey, { id }) => {

setHoveredMarkerId(id);

onChildMouseLeave: ({ setHoveredMarkerId }) =>

() => {

setHoveredMarkerId(-1);

}),

withPropsOnChange(['markers', 'mapParams'], ({

markers,

mapParams: { bounds },

}) => ({

markers: bounds ? markers.filter(m => ptInBounds(bounds, m)) : [],

})),

withProps(({ hoveredMarkerId }) => ({

draggable: hoveredMarkerId === -1,

})),

props2Stream('hoveredMarkerId'),

withPropsOnChange(['markers', 'hoveredMarkerId$'], ({

markers,

hoveredMarkerId$,

}) => ({

markers: markers.map(({ ...markerProps, id }) => (

<ReactiveMarker

key={id}

id={id}

hoveredMarkerId$={hoveredMarkerId$}

{...markerProps}

)),

}))

);

export default gMapHOC(gMap);

google-map-react/develop/GMapOptim.js at master · boyuan-chen/google-map-react · GitHub

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