Elemento da lista de lugares

O PlaceListElement é um elemento HTML que renderiza os resultados de uma pesquisa de lugares em uma lista. Há duas maneiras de configurar o elemento gmp-place-list:

Pesquisar solicitação nas proximidades

O exemplo a seguir renderiza o elemento Lista de lugares em resposta a uma pesquisa nas proximidades. Para simplificar, apenas três tipos de lugar são listados: café, restaurante e estação de recarga de VE. Quando um resultado é selecionado, uma janela de informações mostrando os detalhes do lugar é exibida. Para adicionar o elemento "Place List" ao mapa, adicione um elemento gmp-place-list à página HTML, conforme mostrado no snippet abaixo:

<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></gmp-place-list>
    </div>
  </div>
  <gmp-place-details size="large"></gmp-place-details>
</gmp-map>
index.html

Várias chamadas querySelector são usadas para selecionar os elementos da página para interação:

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");
let marker = document.querySelector('gmp-advanced-marker');
index.js

Quando o usuário clica no botão de pesquisa, configureFromSearchNearbyRequest é chamado e o elemento Place List mostra os resultados. Os marcadores são adicionados na função auxiliar addMarkers. O snippet abaixo também mostra o código para processar eventos de clique na lista de lugares usando o evento gmp-placeselect: 

typeSelect.addEventListener("change", (event) => {
    // First remove all existing markers.
    for (marker in markers) {
        markers[marker].map = null;
    }
    markers = {};
    if (typeSelect.value) {
        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();
        });
    }
});
index.js

Confira o exemplo de código completo

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");
let marker = document.querySelector('gmp-advanced-marker');
let markers = {};
let infoWindow;
let mapCenter;
async function initMap() {
    await google.maps.importLibrary("places");
    const { InfoWindow } = await google.maps.importLibrary("maps");
    const { spherical } = await google.maps.importLibrary("geometry");
    infoWindow = new google.maps.InfoWindow;
    function getContainingCircle(bounds) {
        const diameter = spherical.computeDistanceBetween(bounds.getNorthEast(), bounds.getSouthWest());
        const calculatedRadius = diameter / 2;
        const cappedRadius = Math.min(calculatedRadius, 50000); // Cap the radius to avoid an error.
        return { center: bounds.getCenter(), radius: cappedRadius };
    }
    findCurrentLocation();
    map.innerMap.setOptions({
        mapTypeControl: false,
        clickableIcons: false,
    });
    typeSelect.addEventListener("change", (event) => {
        // First remove all existing markers.
        for (marker in markers) {
            markers[marker].map = null;
        }
        markers = {};
        if (typeSelect.value) {
            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();
                }
                placeDetails.configureFromPlace(place);
                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: 500, left: 400 });
                });
            });
            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();
index.js

CSS

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

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

  h1 {
      font-size: 16px;
      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;
  }
style.css

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="s/https://developers.google.com/maps/documentation/javascript/places-ui-kit/tyle.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></gmp-place-list>
        </div>
      </div>
      <gmp-place-details size="large"></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>
index.html

Testar amostra

Pesquisar por solicitação de texto

Este exemplo renderiza o elemento "Place List" em resposta a uma pesquisa de texto codificada. Quando um resultado é selecionado, uma janela de informações mostrando os detalhes do lugar é exibida. Para adicionar o elemento "Place List" ao mapa, adicione um elemento gmp-place-list à página HTML, conforme mostrado no snippet abaixo:

<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="list-container">
      <gmp-place-list selectable></gmp-place-list>
    </div>
  </div>
  <gmp-place-details size="large"></gmp-place-details>
</gmp-map>
index.html

Várias chamadas querySelector são usadas para selecionar os elementos da página para interação:

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');
index.js

Quando a função de pesquisa é executada no carregamento da página, configureFromSearchByTextRequest é chamada e o elemento "Place List" renderiza os resultados. Os marcadores são adicionados na função auxiliar addMarkers. O snippet abaixo mostra o código da função: 

async function searchByTextRequest(textQuery) {
    if (textQuery) {
        placeList.configureFromSearchByTextRequest({
            locationRestriction: bounds,
            includedType: "restaurant",
            textQuery: textQuery,
        }).then(addMarkers);
        // Handle user selection in Place Details.
        placeList.addEventListener("gmp-placeselect", ({ place }) => {
            markers[place.id].click();
        });
    }
}
index.js

Confira o exemplo de código completo

O exemplo a seguir usa o componente de interface da lista de lugares para mostrar lugares com base em uma pesquisa por proximidade usando configureFromSearchNearbyRequest e adiciona marcadores clicáveis ao mapa para mostrar detalhes do lugar ao selecionar.

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');
let markers = {};
let infoWindow;
let center = { lat: 37.395641, lng: -122.077627 };
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
    let adjustedCenter = offsetLatLngRight(center, -0.005);
    map.innerMap.panTo(adjustedCenter);
    map.innerMap.setZoom(14);
    map.innerMap.setOptions({
        mapTypeControl: false,
        clickableIcons: false,
    });
    searchByTextRequest('tacos in Mountain View');
}
async function searchByTextRequest(textQuery) {
    if (textQuery) {
        placeList.configureFromSearchByTextRequest({
            locationRestriction: bounds,
            includedType: "restaurant",
            textQuery: textQuery,
        }).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.collisionBehavior = google.maps.CollisionBehavior.REQUIRED_AND_HIDES_OPTIONAL;
            marker.addListener('gmp-click', (event) => {
                if (infoWindow.isOpen) {
                    infoWindow.close();
                }
                placeDetails.configureFromPlace(place);
                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);
        });
    }
}
// Helper function to offset the map center.
function offsetLatLngRight(latLng, longitudeOffset) {
    const newLng = latLng.lng + longitudeOffset;
    return new google.maps.LatLng(latLng.lat, newLng);
}
initMap();
index.js

CSS

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

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

  h1 {
      font-size: 16px;
      text-align: center;
  }

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

  .overlay {
      position: relative;
      top: 20px;
      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;
  }
style.css

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="s/https://developers.google.com/maps/documentation/javascript/places-ui-kit/tyle.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="list-container">
          <gmp-place-list selectable></gmp-place-list>
        </div>
      </div>
      <gmp-place-details size="large"></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>
index.html

Testar amostra