Geolocation Module

geolocation.js

/* global document google */

/**
  * This file contains code for the maps found in the website.
  * It takes care of converting an address to a location by using google's geocode code.
  *
  * @summary Map Loader
*/

const mapLoader = (function(){
  const mapsOnPage = document.querySelectorAll('.js-map');

  function geocodeAddress(geocoder, resultsMap, address){
    const defaultPosition = {lat: 45.4654, lng: 9.1859};
    geocoder.geocode({address}, (results, status) => {
      if (status === 'OK'){
        resultsMap.setCenter(results[0].geometry.location);
        const marker = new google.maps.Marker({
          map: resultsMap,
          position: results[0].geometry.location,
          animation: google.maps.Animation.DROP
        });
      } else {
        resultsMap.setCenter(milanoPosition);
        const marker = new google.maps.Marker({
          map: resultsMap,
          position: defaultPosition,
          animation: google.maps.Animation.DROP
        });
      }
    });
  }

  function generateMap(mapContainer){
    const address = mapContainer.dataset.address;
    const googleMap = new google.maps.Map(mapContainer, {
      zoom: 15,
      center: {lat: -34.397, lng: 150.644}
    });
    const geocoder = new google.maps.Geocoder();
    geocodeAddress(geocoder, googleMap, address);
  }

  function init(){
    for (const mapContainer of mapsOnPage){
      generateMap(mapContainer);
    }
  }

  return {
    init
  };
})();

module.exports = mapLoader;