Google Maps API 住所と検索語句のオートコンプリートサンプルコード

PR

グーグル(Google)も動き始めています。

良いのか悪いのかということは別にして、便利なツールの登場で、プログラミングを必要としないで便利なサービスを作れてしまうようにもなってきており、企業による囲い込みがどんどん広がりを見せております。

サンプルコード(sample code)などもほとんど公開されている場合もあります。

Google Maps APIも良いのか悪いのか、チュートリアルやドキュメントが丁寧なってきているような・・・。

今回は、Google Maps APIより、住所と検索語句のオートコンプリートというGoogle Maps API公式サイトで公開されているコードなどをそのまま貼り付けます。ちなみにさらに詳しくPlace Autocomplete Hotel Searchというものも公開されていたり、データ(data)の組み込み方なども記載されていたりもします。Google Maps Static Maps APIやGoogle Maps JavaScript APIサンプルコード(sample code)やhtmlなどは、そのまま貼り付けます。ご興味のある方は、データセット(dataset)やジオコーディング(geocoding)などのチュートリアルやドキュメントなども掲載されています。ウェブサービスであったり、アプリ制作などのSDKなどもあったりします。

Google Maps APIキーの取得が必要ですので。また今回は、Google Maps APIウェブ版です。

Place Autocomplete Hotel Search

<!DOCTYPE html>
<html>
<head>
<title>Place Autocomplete Hotel Search</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
table {
font-size: 12px;
}
#map {
width: 440px;
}
#listing {
position: absolute;
width: 200px;
height: 470px;
overflow: auto;
left: 442px;
top: 0px;
cursor: pointer;
overflow-x: hidden;
}
#findhotels {
position: absolute;
text-align: right;
width: 100px;
font-size: 14px;
padding: 4px;
z-index: 5;
background-color: #fff;
}
#locationField {
position: absolute;
width: 190px;
height: 25px;
left: 108px;
top: 0px;
z-index: 5;
background-color: #fff;
}
#controls {
position: absolute;
left: 300px;
width: 140px;
top: 0px;
z-index: 5;
background-color: #fff;
}
#autocomplete {
width: 100%;
}
#country {
width: 100%;
}
.placeIcon {
width: 20px;
height: 34px;
margin: 4px;
}
.hotelIcon {
width: 24px;
height: 24px;
}
#resultsTable {
border-collapse: collapse;
width: 240px;
}
#rating {
font-size: 13px;
font-family: Arial Unicode MS;
}
.iw_table_row {
height: 18px;
}
.iw_attribute_name {
font-weight: bold;
text-align: right;
}
.iw_table_icon {
text-align: right;
}
</style>
</head>

<body>

<div id="findhotels">
Find hotels in:
</div>

<div id="locationField">
<input id="autocomplete" placeholder="Enter a city" type="text" />
</div>

<div id="controls">
<select id="country">
<option value="all">All</option>
<option value="au">Australia</option>
<option value="br">Brazil</option>
<option value="ca">Canada</option>
<option value="fr">France</option>
<option value="de">Germany</option>
<option value="mx">Mexico</option>
<option value="nz">New Zealand</option>
<option value="it">Italy</option>
<option value="za">South Africa</option>
<option value="es">Spain</option>
<option value="pt">Portugal</option>
<option value="us" selected>U.S.A.</option>
<option value="uk">United Kingdom</option>
</select>
</div>

<div id="map"></div>

<div id="listing">
<table id="resultsTable">
<tbody id="results"></tbody>
</table>
</div>

<div style="display: none">
<div id="info-content">
<table>
<tr id="iw-url-row" class="iw_table_row">
<td id="iw-icon" class="iw_table_icon"></td>
<td id="iw-url"></td>
</tr>
<tr id="iw-address-row" class="iw_table_row">
<td class="iw_attribute_name">Address:</td>
<td id="iw-address"></td>
</tr>
<tr id="iw-phone-row" class="iw_table_row">
<td class="iw_attribute_name">Telephone:</td>
<td id="iw-phone"></td>
</tr>
<tr id="iw-rating-row" class="iw_table_row">
<td class="iw_attribute_name">Rating:</td>
<td id="iw-rating"></td>
</tr>
<tr id="iw-website-row" class="iw_table_row">
<td class="iw_attribute_name">Website:</td>
<td id="iw-website"></td>
</tr>
</table>
</div>
</div>

<script>
// This example uses the autocomplete feature of the Google Places API.
// It allows the user to find all hotels in a given place, within a given
// country. It then displays markers for all the hotels returned,
// with on-click details for each hotel.

// This example requires the Places library. Include the libraries=places
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places">

var map, places, infoWindow;
var markers = [];
var autocomplete;
var countryRestrict = {'country': 'us'};
var MARKER_PATH = 'https://developers.google.com/maps/documentation/javascript/images/marker_green';
var hostnameRegexp = new RegExp('^https?://.+?/');

var countries = {
'au': {
center: {lat: -25.3, lng: 133.8},
zoom: 4
},
'br': {
center: {lat: -14.2, lng: -51.9},
zoom: 3
},
'ca': {
center: {lat: 62, lng: -110.0},
zoom: 3
},
'fr': {
center: {lat: 46.2, lng: 2.2},
zoom: 5
},
'de': {
center: {lat: 51.2, lng: 10.4},
zoom: 5
},
'mx': {
center: {lat: 23.6, lng: -102.5},
zoom: 4
},
'nz': {
center: {lat: -40.9, lng: 174.9},
zoom: 5
},
'it': {
center: {lat: 41.9, lng: 12.6},
zoom: 5
},
'za': {
center: {lat: -30.6, lng: 22.9},
zoom: 5
},
'es': {
center: {lat: 40.5, lng: -3.7},
zoom: 5
},
'pt': {
center: {lat: 39.4, lng: -8.2},
zoom: 6
},
'us': {
center: {lat: 37.1, lng: -95.7},
zoom: 3
},
'uk': {
center: {lat: 54.8, lng: -4.6},
zoom: 5
}
};

function initMap() {
map = new google.maps.Map(document.getElementById('map'), {
zoom: countries['us'].zoom,
center: countries['us'].center,
mapTypeControl: false,
panControl: false,
zoomControl: false,
streetViewControl: false
});

infoWindow = new google.maps.InfoWindow({
content: document.getElementById('info-content')
});

// Create the autocomplete object and associate it with the UI input control.
// Restrict the search to the default country, and to place type "cities".
autocomplete = new google.maps.places.Autocomplete(
/** @type {!HTMLInputElement} */ (
document.getElementById('autocomplete')), {
types: ['(cities)'],
componentRestrictions: countryRestrict
});
places = new google.maps.places.PlacesService(map);

autocomplete.addListener('place_changed', onPlaceChanged);

// Add a DOM event listener to react when the user selects a country.
document.getElementById('country').addEventListener(
'change', setAutocompleteCountry);
}

// When the user selects a city, get the place details for the city and
// zoom the map in on the city.
function onPlaceChanged() {
var place = autocomplete.getPlace();
if (place.geometry) {
map.panTo(place.geometry.location);
map.setZoom(15);
search();
} else {
document.getElementById('autocomplete').placeholder = 'Enter a city';
}
}

// Search for hotels in the selected city, within the viewport of the map.
function search() {
var search = {
bounds: map.getBounds(),
types: ['lodging']
};

places.nearbySearch(search, function(results, status) {
if (status === google.maps.places.PlacesServiceStatus.OK) {
clearResults();
clearMarkers();
// Create a marker for each hotel found, and
// assign a letter of the alphabetic to each marker icon.
for (var i = 0; i < results.length; i++) {
var markerLetter = String.fromCharCode('A'.charCodeAt(0) + (i % 26));
var markerIcon = MARKER_PATH + markerLetter + '.png';
// Use marker animation to drop the icons incrementally on the map.
markers[i] = new google.maps.Marker({
position: results[i].geometry.location,
animation: google.maps.Animation.DROP,
icon: markerIcon
});
// If the user clicks a hotel marker, show the details of that hotel
// in an info window.
markers[i].placeResult = results[i];
google.maps.event.addListener(markers[i], 'click', showInfoWindow);
setTimeout(dropMarker(i), i * 100);
addResult(results[i], i);
}
}
});
}

function clearMarkers() {
for (var i = 0; i < markers.length; i++) {
if (markers[i]) {
markers[i].setMap(null);
}
}
markers = [];
}

// Set the country restriction based on user input.
// Also center and zoom the map on the given country.
function setAutocompleteCountry() {
var country = document.getElementById('country').value;
if (country == 'all') {
autocomplete.setComponentRestrictions([]);
map.setCenter({lat: 15, lng: 0});
map.setZoom(2);
} else {
autocomplete.setComponentRestrictions({'country': country});
map.setCenter(countries[country].center);
map.setZoom(countries[country].zoom);
}
clearResults();
clearMarkers();
}

function dropMarker(i) {
return function() {
markers[i].setMap(map);
};
}

function addResult(result, i) {
var results = document.getElementById('results');
var markerLetter = String.fromCharCode('A'.charCodeAt(0) + (i % 26));
var markerIcon = MARKER_PATH + markerLetter + '.png';

var tr = document.createElement('tr');
tr.style.backgroundColor = (i % 2 === 0 ? '#F0F0F0' : '#FFFFFF');
tr.onclick = function() {
google.maps.event.trigger(markers[i], 'click');
};

var iconTd = document.createElement('td');
var nameTd = document.createElement('td');
var icon = document.createElement('img');
icon.src = markerIcon;
icon.setAttribute('class', 'placeIcon');
icon.setAttribute('className', 'placeIcon');
var name = document.createTextNode(result.name);
iconTd.appendChild(icon);
nameTd.appendChild(name);
tr.appendChild(iconTd);
tr.appendChild(nameTd);
results.appendChild(tr);
}

function clearResults() {
var results = document.getElementById('results');
while (results.childNodes[0]) {
results.removeChild(results.childNodes[0]);
}
}

// Get the place details for a hotel. Show the information in an info window,
// anchored on the marker for the hotel that the user selected.
function showInfoWindow() {
var marker = this;
places.getDetails({placeId: marker.placeResult.place_id},
function(place, status) {
if (status !== google.maps.places.PlacesServiceStatus.OK) {
return;
}
infoWindow.open(map, marker);
buildIWContent(place);
});
}

// Load the place information into the HTML elements used by the info window.
function buildIWContent(place) {
document.getElementById('iw-icon').innerHTML = '<img class="hotelIcon" ' +
'src="' + place.icon + '"/>';
document.getElementById('iw-url').innerHTML = '<b><a href="' + place.url +
'">' + place.name + '</a></b>';
document.getElementById('iw-address').textContent = place.vicinity;

if (place.formatted_phone_number) {
document.getElementById('iw-phone-row').style.display = '';
document.getElementById('iw-phone').textContent =
place.formatted_phone_number;
} else {
document.getElementById('iw-phone-row').style.display = 'none';
}

// Assign a five-star rating to the hotel, using a black star ('&#10029;')
// to indicate the rating the hotel has earned, and a white star ('&#10025;')
// for the rating points not achieved.
if (place.rating) {
var ratingHtml = '';
for (var i = 0; i < 5; i++) {
if (place.rating < (i + 0.5)) {
ratingHtml += '&#10025;';
} else {
ratingHtml += '&#10029;';
}
document.getElementById('iw-rating-row').style.display = '';
document.getElementById('iw-rating').innerHTML = ratingHtml;
}
} else {
document.getElementById('iw-rating-row').style.display = 'none';
}

// The regexp isolates the first part of the URL (domain plus subdomain)
// to give a short URL for displaying in the info window.
if (place.website) {
var fullUrl = place.website;
var website = hostnameRegexp.exec(place.website);
if (website === null) {
website = 'http://' + place.website + '/';
fullUrl = website;
}
document.getElementById('iw-website-row').style.display = '';
document.getElementById('iw-website').textContent = website;
} else {
document.getElementById('iw-website-row').style.display = 'none';
}
}
</script>
<script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places&callback=initMap"
async defer></script>
</body>
</html>

Place Autocomplete Address Form

<!DOCTYPE html>
<html>
<head>
<title>Place Autocomplete Address Form</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
<link type="text/css" rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500">
<style>
#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;
}
</style>
</head>

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

<table id="address">
<tr>
<td class="label">Street address</td>
<td class="slimField"><input class="field" id="street_number"
disabled="true"></input></td>
<td class="wideField" colspan="2"><input class="field" id="route"
disabled="true"></input></td>
</tr>
<tr>
<td class="label">City</td>
<!-- Note: Selection of address components in this example is typical.
You may need to adjust it for the locations relevant to your app. See
Place Autocomplete Address Form  |  Maps JavaScript API  |  Google Developers
--> <td class="wideField" colspan="3"><input class="field" id="locality" disabled="true"></input></td> </tr> <tr> <td class="label">State</td> <td class="slimField"><input class="field" id="administrative_area_level_1" disabled="true"></input></td> <td class="label">Zip code</td> <td class="wideField"><input class="field" id="postal_code" disabled="true"></input></td> </tr> <tr> <td class="label">Country</td> <td class="wideField" colspan="3"><input class="field" id="country" disabled="true"></input></td> </tr> </table> <script> // This example displays an address form, using the autocomplete feature // of the Google Places API to help users fill in the information. // This example requires the Places library. Include the libraries=places // parameter when you first load the API. For example: // <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places"> var placeSearch, autocomplete; var componentForm = { street_number: 'short_name', route: 'long_name', locality: 'long_name', administrative_area_level_1: 'short_name', country: 'long_name', postal_code: 'short_name' }; function initAutocomplete() { // Create the autocomplete object, restricting the search to geographical // location types. autocomplete = new google.maps.places.Autocomplete( /** @type {!HTMLInputElement} */(document.getElementById('autocomplete')), {types: ['geocode']}); // When the user selects an address from the dropdown, populate the address // fields in the form. autocomplete.addListener('place_changed', fillInAddress); } function fillInAddress() { // Get the place details from the autocomplete object. var place = autocomplete.getPlace(); for (var component in componentForm) { document.getElementById(component).value = ''; document.getElementById(component).disabled = false; } // Get each component of the address from the place details // and fill the corresponding field on the form. for (var i = 0; i < place.address_components.length; i++) { var addressType = place.address_components[i].types[0]; if (componentForm[addressType]) { var val = place.address_components[i][componentForm[addressType]]; document.getElementById(addressType).value = val; } } } // Bias the autocomplete object to the user's geographical location, // as supplied by the browser's 'navigator.geolocation' object. 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()); }); } } </script> <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places&callback=initAutocomplete" async defer></script> </body> </html>

Google Maps Platform
Google Maps API
スタートガイド
Place Autocomplete Hotel Search
Place Autocomplete Address Form