Autocomplete Stores Fallback Google AutocompleteService

by woosmap

HTML

<div class="autocomplete-input-container">
  <div class="autocomplete-input">
    <input id="my-input-autocomplete" placeholder="Autocomplete Stores Fallback Google..." autocomplete="off" role="combobox">
  </div>
  <ul class="autocomplete-results">
  </ul>
</div>
<div id="map"></div>
<!-- Replace the value of the key parameter with your own API key. -->
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&libraries=places&callback"></script>
<img src="https://images.woosmap.com/icons/coffee.svg" style="display:none">
<img src="https://images.woosmap.com/icons/coffee-selected.svg" style="display:none">
<img src="https://images.woosmap.com/icons/locality.svg" style="display:none">
<img src="https://images.woosmap.com/icons/locality-selected.svg" style="display:none">

CSS

#map {
  height: 100%;
}

html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

.autocomplete-input-container {
  position: absolute;
  z-index: 1;
  width: 100%;
}

.autocomplete-input {
  text-align: center;
}

#my-input-autocomplete {
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.16), 0 0 0 1px rgba(0, 0, 0, 0.08);
  font-size: 15px;
  border-radius: 3px;
  border: 0;
  margin-top: 10px;
  width: 290px;
  height: 40px;
  text-overflow: ellipsis;
  padding: 0 1em;
}

#my-input-autocomplete:focus {
  outline: none;
}

.autocomplete-results {
  margin: 0 auto;
  right: 0;
  left: 0;
  position: absolute;
  display: none;
  background-color: white;
  width: 320px;
  padding: 0;
  list-style-type: none;
  margin: 0 auto;
  border: 1px solid #d2d2d2;
  border-top: 0;
  box-sizing: border-box;
}

.autocomplete-item {
  padding: 5px 5px 5px 35px;
  height: 26px;
  line-height: 26px;
  border-top: 1px solid #d9d9d9;
  position: relative;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.autocomplete-icon {
  display: block;
  position: absolute;
  top: 7px;
  bottom: 0;
  left: 8px;
  width: 20px;
  height: 20px;
  background-repeat: no-repeat;
  background-position: center center;
}

.autocomplete-icon.icon-localities {
  background-image: url(https://images.woosmap.com/icons/locality.svg);
}

.autocomplete-item:hover .autocomplete-icon.icon-localities {
  background-image: url(https://images.woosmap.com/icons/locality-selected.svg);
}

.autocomplete-item:hover {
  background-color: #f2f2f2;
  cursor: pointer;
}

.autocomplete-icon.icon-store {
  background-image: url(https://images.woosmap.com/icons/coffee.svg);
}

.autocomplete-item:hover .autocomplete-icon.icon-store {
  background-image: url(https://images.woosmap.com/icons/coffee-selected.svg);
}

.autocomplete-results.google::after {
  content: "";
  padding: 1px 1px 1px 0;
  height: 18px;
  box-sizing: border-box;
  text-align: right;
  display: block;
  background-image:...

JavaScript

class JSONResponse {
  constructor(response) {
    this.response = response;
  }

  json() {
    return new Promise((resolve, reject) => {
      resolve(JSON.parse(this.response));
    })
  }
}
window.esXHR = new XMLHttpRequest();
window.woosXHR = new XMLHttpRequest();

function buildQueryString(params) {
  let queryStringParts = [];

  for (let key in params) {
    if (params.hasOwnProperty(key)) {
      let value = params[key];

      queryStringParts.push(encodeURIComponent(key) + '=' + encodeURIComponent(value));
    }
  }

  return queryStringParts.join('&');
}

function nFetch(url, globalXHR) {
  return new Promise((resolve, reject) => {
    let xhr = globalXHR || new XMLHttpRequest();
    xhr.abort();
    xhr.open('GET', url);

    xhr.onload = () => {
      if (xhr.status >= 200 && xhr.status < 300) {
        resolve(new JSONResponse(xhr.response));
      } else {
        reject(xhr.statusText);
      }
    };
    xhr.onerror = () => reject(xhr.statusText);
    xhr.send();
  });
}

function debounce(func, wait, immediate) {
  let timeout;
  return function() {
    let context = this,
      args = arguments;
    let later = function() {
      timeout = null;
      if (!immediate) func.apply(context, args);
    };
    let callNow = immediate && !timeout;
    clearTimeout(timeout);
    timeout = setTimeout(later, wait);
    if (callNow) func.apply(context, args);
  };
}

function searchStores(input) {
  let args = {
    key: 'woos-81a699ca-5082-3ffd-9f54-a684a4b82853',
    query: 'name:"' + input + '" OR city:"' + input + '"',
    stores_by_page: 5
  };
  return nFetch('https://api.woosmap.com/stores/search/?' + buildQueryString(args), window.esXHR).then(function(response) {
    return response.json()
  });
}

function initAutocomplete() {
  let map = new google.maps.Map(document.getElementById('map'), {
    center: {
      lat: 48,
      lng: 4
    },
    zoom: 4,
    disableDefaultUI: true
  });

  // Create the search box and link it to the UI element.
 ...