Yer Listesi Öğesi (Yer Arama)

Yer araması olarak da bilinen PlaceListElement, bir yer aramasının sonuçlarını bir listede oluşturan bir HTML öğesidir. gmp-place-list öğesini yapılandırmanın iki yolu vardır:

Yakındakileri ara isteği

Aşağıdaki örnekte, yakınlarda yapılan bir aramaya yanıt olarak Yer Listesi öğesi oluşturulmaktadır. Basitlik açısından yalnızca üç yer türü listelenir: kafe, restoran ve elektrikli araç şarj istasyonu. Bir sonuç seçildiğinde, seçilen yerle ilgili yer ayrıntılarını gösteren bir bilgi penceresi gösterilir. Yer listesi öğesini haritaya eklemek için aşağıdaki snippet'te gösterildiği gibi HTML sayfasına bir gmp-place-list öğesi ekleyin:

<gmp-map center="-37.813,144.963" zoom="10" map-id="DEMO_MAP_ID">
  <div class="overlay" slot="control-inline-start-block-start">
    <div class="controls">
      <select name="types" class="type-select">
        <option value="">Select a place type</option>
        <option value="cafe">Cafe</option>
        <option value="restaurant">Restaurant</option>
        <option value="electric_vehicle_charging_station">
          EV charging station
        </option>
      </select>
    </div>
    <div class="list-container">
      <gmp-place-list selectable style="display: none;"></gmp-place-list>
    </div>
  </div>
</gmp-map>

<gmp-place-details style="display: none;">
  <gmp-place-details-place-request></gmp-place-details-place-request>
  <gmp-place-all-content></gmp-place-all-content> 
</gmp-place-details>

Etkileşim için sayfa öğelerini seçmek üzere birkaç querySelector çağrısı kullanılır:

const map = document.querySelector("gmp-map");
const placeList = document.querySelector("gmp-place-list");
const typeSelect = document.querySelector(".type-select");
const placeDetails = document.querySelector("gmp-place-details");
const placeDetailsRequest = document.querySelector('gmp-place-details-place-request');

Kullanıcı arama düğmesini tıkladığında configureFromSearchNearbyRequest çağrılır ve Yer Listesi öğesi sonuçları gösterir (addMarkers yardımcı işlevine işaretçiler eklenir). Aşağıdaki snippet'te, gmp-placeselect etkinliğini kullanarak yer listesindeki tıklama etkinliklerini işleme kodu da gösterilmektedir:

placeDetails.addEventListener('gmp-load', (event) => {
    // Center the info window on the map.
    map.innerMap.fitBounds(placeDetails.place.viewport, { top: 500, left: 400 });
});
typeSelect.addEventListener('change', (event) => {
    // First remove all existing markers.
    for (marker in markers) {
        markers[marker].map = null;
    }
    markers = {};
    if (typeSelect.value) {
        placeList.style.display = 'block';
        placeList.configureFromSearchNearbyRequest({
            locationRestriction: getContainingCircle(map.innerMap.getBounds()),
            includedPrimaryTypes: [typeSelect.value],
        }).then(addMarkers);
        // Handle user selection in Place Details.
        placeList.addEventListener('gmp-placeselect', ({ place }) => {
            markers[place.id].click();
        });
    }
});

Kod örneğinin tamamını görme

JavaScript

const map = document.querySelector("gmp-map");
const placeList = document.querySelector("gmp-place-list");
const typeSelect = document.querySelector(".type-select");
const placeDetails = document.querySelector("gmp-place-details");
const placeDetailsRequest = document.querySelector('gmp-place-details-place-request');
let markers = {};
let infoWindow;
async function initMap() {
    await google.maps.importLibrary('places');
    const { LatLngBounds } = await google.maps.importLibrary('core');
    const { InfoWindow } = await google.maps.importLibrary('maps');
    const { spherical } = await google.maps.importLibrary('geometry');
    infoWindow = new InfoWindow;
    let marker;
    function getContainingCircle(bounds) {
        const diameter = spherical.computeDistanceBetween(bounds.getNorthEast(), bounds.getSouthWest());
        const calculatedRadius = diameter / 2;
        const cappedRadius = Math.min(calculatedRadius, 50000); // Radius cannot be more than 50000.
        return { center: bounds.getCenter(), radius: cappedRadius };
    }
    findCurrentLocation();
    map.innerMap.setOptions({
        mapTypeControl: false,
        clickableIcons: false,
    });
    placeDetails.addEventListener('gmp-load', (event) => {
        // Center the info window on the map.
        map.innerMap.fitBounds(placeDetails.place.viewport, { top: 500, left: 400 });
    });
    typeSelect.addEventListener('change', (event) => {
        // First remove all existing markers.
        for (marker in markers) {
            markers[marker].map = null;
        }
        markers = {};
        if (typeSelect.value) {
            placeList.style.display = 'block';
            placeList.configureFromSearchNearbyRequest({
                locationRestriction: getContainingCircle(map.innerMap.getBounds()),
                includedPrimaryTypes: [typeSelect.value],
            }).then(addMarkers);
            // Handle user selection in Place Details.
            placeList.addEventListener('gmp-placeselect', ({ place }) => {
                markers[place.id].click();
            });
        }
    });
}
async function addMarkers() {
    const { AdvancedMarkerElement } = await google.maps.importLibrary('marker');
    const { LatLngBounds } = await google.maps.importLibrary('core');
    const bounds = new LatLngBounds();
    if (placeList.places.length > 0) {
        placeList.places.forEach((place) => {
            let marker = new AdvancedMarkerElement({
                map: map.innerMap,
                position: place.location
            });
            markers[place.id] = marker;
            bounds.extend(place.location);
            marker.addListener('gmp-click', (event) => {
                if (infoWindow.isOpen) {
                    infoWindow.close();
                }
                placeDetailsRequest.place = place.id;
                placeDetails.style.display = 'block';
                placeDetails.style.width = '350px';
                infoWindow.setOptions({
                    content: placeDetails,
                });
                infoWindow.open({
                    anchor: marker,
                    map: map.innerMap
                });
            });
            map.innerMap.setCenter(bounds.getCenter());
            map.innerMap.fitBounds(bounds);
        });
    }
}
async function findCurrentLocation() {
    const { LatLng } = await google.maps.importLibrary('core');
    if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition((position) => {
            const pos = new LatLng(position.coords.latitude, position.coords.longitude);
            map.innerMap.panTo(pos);
            map.innerMap.setZoom(14);
        }, () => {
            console.log('The Geolocation service failed.');
            map.innerMap.setZoom(14);
        });
    }
    else {
        console.log('Your browser doesn\'t support geolocation');
        map.innerMap.setZoom(14);
    }
}
initMap();

CSS

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

  body {
      display: flex;
      flex-direction: column;
      font-family: Arial, Helvetica, sans-serif;
  }

  h1 {
      font-size: large;
      text-align: center;
  }

  gmp-map {
      box-sizing: border-box;
      height: 600px;
  }

  .overlay {
      position: relative;
      top: 40px;
      margin: 20px;
      width: 400px;
  }

  .controls {
      display: flex;
      gap: 10px;
      margin-bottom: 10px;
      height: 32px;
  }

  .search-button {
      background-color: #5491f5;
      color: #fff;
      border: 1px solid #ccc;
      border-radius: 5px;
      width: 100px;
      cursor: pointer;
  }

  .type-select {
      border: 1px solid #ccc;
      border-radius: 5px;
      flex-grow: 1;
      padding: 0 10px;
  }

  .list-container {
      height: 400px;
      overflow: auto;
      border-radius: 10px;
  }

  gmp-place-list {
      background-color: #fff;
      font-size: large
  }

HTML

<!DOCTYPE html>
<html>
  <head>
    <title>Place List Nearby Search with Google Maps</title>
    <meta charset="utf-8">
    <link rel="stylesheet" type="text/css" href="style.css">
    <script type="module" src="./index.js"></script>
  </head>
  <body>
    <gmp-map center="-37.813,144.963" zoom="10" map-id="DEMO_MAP_ID">
      <div class="overlay" slot="control-inline-start-block-start">
        <div class="controls">
          <select name="types" class="type-select">
            <option value="">Select a place type</option>
            <option value="cafe">Cafe</option>
            <option value="restaurant">Restaurant</option>
            <option value="electric_vehicle_charging_station">
              EV charging station
            </option>
          </select>
        </div>
        <div class="list-container">
          <gmp-place-list selectable style="display: none;"></gmp-place-list>
        </div>
      </div>
    </gmp-map>

    <gmp-place-details style="display: none;">
      <gmp-place-details-place-request></gmp-place-details-place-request>
      <gmp-place-all-content></gmp-place-all-content> 
    </gmp-place-details>

    <script>(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})
        ({key: "AIzaSyA6myHzS10YXdcazAFalmXvDkrYCp5cLc8", v: "alpha"});</script>
  </body>
</html>

Örneği Deneyin

Metne göre arama isteği

Bu örnekte, kullanıcının metin aramasına yanıt olarak Yer Listesi öğesi oluşturulur. Bir sonuç seçildiğinde, seçilen yer için yer ayrıntılarını gösteren bir bilgi penceresi gösterilir. Yer listesi öğesini haritaya eklemek için aşağıdaki snippet'te gösterildiği gibi HTML sayfasına bir gmp-place-list öğesi ekleyin:

<gmp-map center="37.395641,-122.077627" zoom="10" map-id="DEMO_MAP_ID">
  <div class="overlay" slot="control-inline-start-block-start">
    <div class="text-search-container">
      <input type="text" id="textSearchInput" placeholder="Enter text search...">
      <button id="textSearchButton">Search</button>
    </div>
    <div class="list-container">
      <gmp-place-list selectable style="display: none;"></gmp-place-list>
    </div>
  </div>
  <gmp-place-details style="display: none;">
    <gmp-place-details-place-request></gmp-place-details-place-request>
    <gmp-place-all-content></gmp-place-all-content> 
  </gmp-place-details>
</gmp-map>

Etkileşim için sayfa öğelerini seçmek üzere birkaç querySelector çağrısı kullanılır:

const map = document.querySelector("gmp-map");
const placeList = document.querySelector("gmp-place-list");
const placeDetails = document.querySelector("gmp-place-details");
let marker = document.querySelector('gmp-advanced-marker');
const textSearchInput = document.getElementById('textSearchInput');
const textSearchButton = document.getElementById('textSearchButton');
const placeDetailsRequest = document.querySelector('gmp-place-details-place-request');

Kullanıcı bir arama sorgusu girdikten sonra arama işlevi çalıştırıldığında configureFromSearchByTextRequest çağrılır ve Yer Listesi öğesi sonuçları oluşturur (addMarkers yardımcı işlevine işaretçiler eklenir). Aşağıdaki snippet'te işlevin kodu gösterilmektedir:

async function searchByTextRequest() {
    if (textSearchInput.value !== "") {
        placeList.style.display = "block";
        placeList.configureFromSearchByTextRequest({
            locationRestriction: bounds,
            textQuery: textSearchInput.value,
        }).then(addMarkers);
        // Handle user selection in Place Details.
        placeList.addEventListener("gmp-placeselect", ({ place }) => {
            markers[place.id].click();
        });
    }
}

Kod örneğinin tamamını görme

Aşağıdaki örnekte, configureFromSearchNearbyRequest kullanılarak yapılan metin aramalarına göre yerleri görüntülemek için Yer Listesi kullanıcı arayüzü bileşeni kullanılmakta ve seçim yapıldığında yer ayrıntılarını göstermek için haritaya tıklanabilir işaretçiler eklenmektedir.

JavaScript

const map = document.querySelector("gmp-map");
const placeList = document.querySelector("gmp-place-list");
const placeDetails = document.querySelector("gmp-place-details");
let marker = document.querySelector('gmp-advanced-marker');
const textSearchInput = document.getElementById('textSearchInput');
const textSearchButton = document.getElementById('textSearchButton');
const placeDetailsRequest = document.querySelector('gmp-place-details-place-request');
let markers = {};
let infoWindow;
let center = { lat: 37.395641, lng: -122.077627 }; // Mountain View, CA.
let bounds;
async function initMap() {
    const { Map, InfoWindow } = await google.maps.importLibrary("maps");
    const { Place } = await google.maps.importLibrary("places");
    // Set bounds for location restriction.
    bounds = new google.maps.LatLngBounds({ lat: 37.37808200917261, lng: -122.13741583377849 }, { lat: 37.416676154341324, lng: -122.02261728794109 });
    infoWindow = new google.maps.InfoWindow;
    // Center the map
    map.innerMap.panTo(center);
    map.innerMap.setZoom(14);
    map.innerMap.setOptions({
        mapTypeControl: false,
        clickableIcons: false,
    });
    // Fire when the Place Details Element is loaded.
    placeDetails.addEventListener('gmp-load', (event) => {
        // Center the info window on the map.
        map.innerMap.fitBounds(placeDetails.place.viewport, { top: 500, left: 400 });
    });
    // Handle clicks on the search button.
    textSearchButton.addEventListener('click', searchByTextRequest);
    // Handle enter key on text input.
    textSearchInput.addEventListener('keydown', (event) => {
        if (event.key === 'Enter') {
            searchByTextRequest();
        }
    });
}
async function searchByTextRequest() {
    if (textSearchInput.value !== "") {
        placeList.style.display = "block";
        placeList.configureFromSearchByTextRequest({
            locationRestriction: bounds,
            textQuery: textSearchInput.value,
        }).then(addMarkers);
        // Handle user selection in Place Details.
        placeList.addEventListener("gmp-placeselect", ({ place }) => {
            markers[place.id].click();
        });
    }
}
async function addMarkers() {
    const { AdvancedMarkerElement } = await google.maps.importLibrary("marker");
    const { LatLngBounds } = await google.maps.importLibrary("core");
    const bounds = new LatLngBounds();
    // First remove all existing markers.
    for (marker in markers) {
        markers[marker].map = null;
    }
    markers = {};
    if (placeList.places.length > 0) {
        placeList.places.forEach((place) => {
            let marker = new AdvancedMarkerElement({
                map: map.innerMap,
                position: place.location,
            });
            markers[place.id] = marker;
            bounds.extend(place.location);
            marker.collisionBehavior = google.maps.CollisionBehavior.REQUIRED_AND_HIDES_OPTIONAL;
            marker.addListener('gmp-click', (event) => {
                if (infoWindow.isOpen) {
                    infoWindow.close();
                }
                // Set the Place Details request to the selected place.
                placeDetailsRequest.place = place.id;
                placeDetails.style.display = "block";
                placeDetails.style.width = "350px";
                infoWindow.setOptions({
                    content: placeDetails
                });
                infoWindow.open({
                    anchor: marker,
                    map: map.innerMap
                });
                placeDetails.addEventListener('gmp-load', () => {
                    map.innerMap.fitBounds(place.viewport, { top: 400, left: 400 });
                });
            });
            map.innerMap.setCenter(bounds.getCenter());
            map.innerMap.fitBounds(bounds);
        });
    }
}
initMap();

CSS

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

  gmp-map {
      box-sizing: border-box;
      height: 500px;
  }

  gmp-place-list {
    background-color: #fff;
    font-size: large
  }

  .overlay {
      position: relative;
      top: 20px;
      margin: 20px;
      width: 400px;
  }

  .list-container {
    height: 400px;
    overflow: auto;
    border-radius: 10px;
  }

  /* Styles for the text search container and its elements */
  .text-search-container {
    display: flex; /* Arrange input and button side-by-side */
    gap: 8px; /* Space between input and button */
    padding-bottom: 10px; /* Space below the search bar */
    border-bottom: 1px solid #eee; /* Separator line */
  }

  #textSearchInput {
    flex-grow: 1; /* Allow input to take available space */
    padding: 8px 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 1rem;
  }

  #textSearchInput:focus {
    outline: none;
    border-color: #4a80e8; /* Highlight on focus */
    box-shadow: 0 0 0 2px rgba(74, 128, 232, 0.2);
  }

  #textSearchButton {
    padding: 8px 15px;
    background-color: #4a80e8; /* Example button color */
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.2s ease-in-out;
  }

  #textSearchButton:hover {
    background-color: #356ac0; /* Darker shade on hover */
  }

HTML

<!DOCTYPE html>
<html>
  <head>
    <title>Place List Text Search with Google Maps</title>
    <meta charset="utf-8">
    <link rel="stylesheet" type="text/css" href="style.css">
    <script type="module" src="./index.js"></script>
  </head>
  <body>
    <gmp-map center="37.395641,-122.077627" zoom="10" map-id="DEMO_MAP_ID">
      <div class="overlay" slot="control-inline-start-block-start">
        <div class="text-search-container">
          <input type="text" id="textSearchInput" placeholder="Enter text search...">
          <button id="textSearchButton">Search</button>
        </div>
        <div class="list-container">
          <gmp-place-list selectable style="display: none;"></gmp-place-list>
        </div>
      </div>
      <gmp-place-details style="display: none;">
        <gmp-place-details-place-request></gmp-place-details-place-request>
        <gmp-place-all-content></gmp-place-all-content> 
      </gmp-place-details>
    </gmp-map>
    <script>(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})
        ({key: "AIzaSyA6myHzS10YXdcazAFalmXvDkrYCp5cLc8", v: "alpha"});</script>
  </body>
</html>

Örneği Deneyin