JSFiddle - React, Tailwind, and code Playground

by Сергей Тарасевич

HTML

<div id="locationField">
  <input id="autocomplete" placeholder="Enter your address" onFocus="geolocate()" type="text" />
</div>

<script src="https://maps.googleapis.com/maps/api/js?libraries=places&callback=initialize&key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk" defer></script>

CSS

html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}
#map {
  height: 100%;
}
#locationField,
#controls {
  position: relative;
  width: 480px;
}
#autocomplete {
  position: absolute;
  top: 0px;
  left: 0px;
  width: 99%;
}
.label {
  text-align: right;
  font-weight: bold;
  width: 100px;
  color: #303030;
}
#address {
  border: 1px solid #000090;
  background-color: #f0f0ff;
  width: 480px;
  padding-right: 2px;
}
#address td {
  font-size: 10pt;
}
.field {
  width: 99%;
}
.slimField {
  width: 80px;
}
.wideField {
  width: 200px;
}
#locationField {
  height: 20px;
  margin-bottom: 2px;
}

JavaScript

function initialize() {
  initAutocomplete();
}
var marker, placeSearch, autocomplete;

function initAutocomplete() {
  autocomplete = new google.maps.places.Autocomplete(
    (document.getElementById('autocomplete')), {
      types: ['geocode']
    });

  autocomplete.addListener('place_changed', fillInAddress);
}

function fillInAddress() {
  var place = autocomplete.getPlace();
  if (place.geometry.viewport) {
    map.fitBounds(place.geometry.viewport);
  } else {
    map.setCenter(place.geometry.location);
    map.setZoom(17);
  }
  if (!marker) {
    marker = new google.maps.Marker({
      map: map,
      anchorPoint: new google.maps.Point(0, -29)
    });
  } else marker.setMap(null);
  marker.setOptions({
    position: place.geometry.location,
    map: map
  });

}

function geolocate() {
  if (navigator.geolocation) {
    navigator.geolocation.getCurrentPosition(function(position) {
      var geolocation = {
        lat: position.coords.latitude,
        lng: position.coords.longitude
      };
      var circle = new google.maps.Circle({
        center: geolocation,
        radius: position.coords.accuracy
      });
      autocomplete.setBounds(circle.getBounds());
    });
  }
}