L'PlaceSearchElement
è un elemento HTML che esegue il rendering dei risultati di una ricerca di luoghi in un elenco. Esistono due modi per
configurare l'elemento gmp-place-search:
- Per cercare luoghi di un tipo specifico in una determinata area, utilizza la
richiesta di ricerca nelle vicinanze per visualizzare i risultati della ricerca utilizzando
PlaceNearbySearchRequestElement. - Per cercare luoghi in una determinata area in base a una query di testo, utilizza la
ricerca per richiesta di testo per visualizzare i risultati di ricerca utilizzando
PlaceTextSearchRequestElement.
Cerca nelle vicinanze
Seleziona un tipo di luogo dal menu per visualizzare i risultati di ricerca nelle vicinanze per quel tipo di luogo.
La ricerca nelle vicinanze è configurata principalmente per la ricerca per tipo di luogo e posizione e i risultati possono essere
ordinati per distanza o per popolarità utilizzando la proprietà rankPreference. Per ulteriori dettagli, consulta la documentazione di riferimento della classe
PlaceNearbySearchRequestElement.
Questo esempio esegue il rendering dell'elemento Ricerca di luoghi in risposta a una ricerca nelle vicinanze con un tipo di luogo selezionato dall'utente. Mostra anche un PlaceDetailsCompactElement per il luogo selezionato.
Vedi l'esempio di codice completo
Per aggiungere l'elemento Ricerca luoghi alla mappa, aggiungi un elemento gmp-place-search con un elemento gmp-place-nearby-search-request nidificato alla pagina HTML.
<gmp-place-search selectable>
<gmp-place-all-content></gmp-place-all-content>
<gmp-place-nearby-search-request
max-result-count="5"></gmp-place-nearby-search-request>
</gmp-place-search>
L'elemento select consente all'utente di scegliere un tipo di luogo dal menu. Per
semplicità, sono elencati solo tre tipi di luoghi: ristorante, bar e stazione di ricarica per veicoli elettrici.
<div class="controls">
<label for="type-select">
Select a place type:
<select id="type-select" class="type-select">
<option value="restaurant">Restaurant</option>
<option value="cafe" selected>Cafe</option>
<option value="electric_vehicle_charging_station">
EV charging station
</option>
</select>
</label>
</div>
Quando l'utente seleziona un tipo di luogo dal menu, l'elemento
gmp-place-nearby-search-request viene aggiornato e l'elemento Ricerca luoghi
mostra i risultati, come mostrato negli snippet seguenti. I marcatori vengono aggiunti nella funzione helper addMarkers.
// Add event listeners to the type select and place search elements. typeSelect.addEventListener('change', () => searchPlaces()); placeSearch.addEventListener('gmp-select', (event) => { const { place } = event; markers.get(place.id)?.click(); }); placeSearch.addEventListener('gmp-load', () => { addMarkers(); }); searchPlaces(); }
// The searchPlaces function is called when the user changes the type select or when the page loads. async function searchPlaces() { // Close the info window and clear the markers. infoWindow.close(); for (const marker of markers.values()) { marker.remove(); } markers.clear(); // Set the place search query and add an event listener to the place search element. if (typeSelect.value) { const center = map.center; placeSearchQuery.locationRestriction = { center, radius: 50000, // 50km radius }; placeSearchQuery.locationBias = { center, }; placeSearchQuery.includedTypes = [typeSelect.value]; } }
Esempio di codice completo
JavaScript
// Query selectors for various elements in the HTML file. const map = document.querySelector('gmp-map'); const placeSearch = document.querySelector('gmp-place-search'); const placeSearchQuery = document.querySelector('gmp-place-nearby-search-request'); const placeDetails = document.querySelector('gmp-place-details-compact'); const placeRequest = document.querySelector('gmp-place-details-place-request'); const typeSelect = document.querySelector('.type-select'); // Global variables for the map, markers, and info window. const markers = new Map(); let infoWindow; // The init function is called when the page loads. async function init() { // Import the necessary libraries from the Google Maps API. const [{ InfoWindow }, { Place }] = await Promise.all([ google.maps.importLibrary('maps'), google.maps.importLibrary('places'), ]); // Create a new info window and set its content to the place details element. placeDetails.remove(); // Hide the place details element because it is not needed until the info window opens infoWindow = new InfoWindow({ content: placeDetails, ariaLabel: 'Place Details', }); // Set the map options. map.innerMap.setOptions({ clickableIcons: false, mapTypeControl: false, streetViewControl: false, }); // Add event listeners to the type select and place search elements. typeSelect.addEventListener('change', () => searchPlaces()); placeSearch.addEventListener('gmp-select', (event) => { const { place } = event; markers.get(place.id)?.click(); }); placeSearch.addEventListener('gmp-load', () => { addMarkers(); }); searchPlaces(); } // The searchPlaces function is called when the user changes the type select or when the page loads. async function searchPlaces() { // Close the info window and clear the markers. infoWindow.close(); for (const marker of markers.values()) { marker.remove(); } markers.clear(); // Set the place search query and add an event listener to the place search element. if (typeSelect.value) { const center = map.center; placeSearchQuery.locationRestriction = { center, radius: 50000, // 50km radius }; placeSearchQuery.locationBias = { center, }; placeSearchQuery.includedTypes = [typeSelect.value]; } } // The addMarkers function is called when the place search element loads. async function addMarkers() { // Import the necessary libraries from the Google Maps API. const [{ AdvancedMarkerElement }, { LatLngBounds }] = await Promise.all([ google.maps.importLibrary('marker'), google.maps.importLibrary('core'), ]); const bounds = new LatLngBounds(); if (placeSearch.places.length === 0) { return; } for (const place of placeSearch.places) { const marker = new AdvancedMarkerElement({ map: map.innerMap, position: place.location, collisionBehavior: google.maps.CollisionBehavior.REQUIRED_AND_HIDES_OPTIONAL, }); markers.set(place.id, marker); bounds.extend(place.location); marker.addListener('click', () => { placeRequest.place = place; infoWindow.open(map.innerMap, marker); }); } map.innerMap.fitBounds(bounds); } init();
CSS
html, body { height: 100%; margin: 0; } body { display: flex; flex-direction: column; font-family: Arial, Helvetica, sans-serif; } .container { display: flex; height: 100vh; width: 100%; } gmp-map { flex-grow: 1; } .ui-panel { width: 400px; margin-left: 20px; margin-top: 10px; overflow-y: auto; font-family: Arial, Helvetica, sans-serif; } .list-container { display: flex; flex-direction: column; } gmp-place-search { width: 100%; margin: 0; border: none; color-scheme: light; }
HTML
<!doctype html>
<html>
<head>
<title>Place Search Nearby with Google Maps</title>
<meta charset="utf-8" />
<link rel="stylesheet" type="text/css" href="style.css" />
<script type="module" src="./index.js" defer></script>
<!-- prettier-ignore -->
<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: "weekly"});
</script>
</head>
<body>
<div class="container">
<!-- map-id is required to use advanced markers. See https://developers.google.com/maps/documentation/javascript/map-ids/mapid-over. -->
<gmp-map center="-37.813,144.963" zoom="16" map-id="DEMO_MAP_ID">
</gmp-map>
<div class="ui-panel">
<div class="controls">
<label for="type-select">
Select a place type:
<select id="type-select" class="type-select">
<option value="restaurant">Restaurant</option>
<option value="cafe" selected>Cafe</option>
<option value="electric_vehicle_charging_station">
EV charging station
</option>
</select>
</label>
</div>
<div class="list-container">
<gmp-place-search selectable>
<gmp-place-all-content></gmp-place-all-content>
<gmp-place-nearby-search-request
max-result-count="5"></gmp-place-nearby-search-request>
</gmp-place-search>
</div>
</div>
</div>
<!--
The gmp-place-details-compact element is styled inline because it is
conditionally rendered and moved into the info window, which is
part of the map's shadow DOM.
-->
<gmp-place-details-compact
orientation="horizontal"
truncation-preferred
style="
width: 400px;
padding: 0;
margin: 0;
border: none;
background-color: transparent;
color-scheme: light;
">
<gmp-place-details-place-request></gmp-place-details-place-request>
<gmp-place-content-config>
<gmp-place-media></gmp-place-media>
<gmp-place-rating></gmp-place-rating>
<gmp-place-price></gmp-place-price>
<gmp-place-accessible-entrance-icon></gmp-place-accessible-entrance-icon>
<gmp-place-open-now-status></gmp-place-open-now-status>
<gmp-place-attribution
light-scheme-color="gray"
dark-scheme-color="white"></gmp-place-attribution>
</gmp-place-content-config>
</gmp-place-details-compact>
</body>
</html>Prova campione
Ricerca tramite richiesta di testo
Inserisci un termine di ricerca nel campo di input e fai clic sul pulsante Cerca per visualizzare un elenco di luoghi che corrispondono al termine.
La ricerca di testo è configurata principalmente per la ricerca utilizzando una query di testo e una località. I risultati possono essere
perfezionati in base al livello di prezzo, alla valutazione e alla disponibilità. I risultati possono anche essere classificati
per distanza o popolarità utilizzando la proprietà rankPreference. Per ulteriori dettagli, consulta la documentazione di riferimento della classe
PlaceTextSearchRequestElement.
Questo esempio esegue il rendering dell'elemento Ricerca luogo in risposta a un input di testo dell'utente. Mostra anche un PlaceDetailsCompactElement per il luogo selezionato.
Vedi l'esempio di codice completo
Per aggiungere l'elemento Ricerca luoghi alla mappa, aggiungi un elemento gmp-place-search
con un elemento gmp-place-search-text-search-request nidificato alla pagina HTML.
<gmp-place-search selectable>
<gmp-place-all-content></gmp-place-all-content>
<gmp-place-text-search-request
max-result-count="5"></gmp-place-nearby-search-request>
</gmp-place-search>
L'elemento input consente all'utente di inserire il testo di ricerca.
<div class="controls">
<input
type="text"
id="query-input"
class="query-input"
placeholder="Search for a place"
value="cafe" />
<button id="search-button" class="search-button">
Search
</button>
</div>
Quando l'utente fa clic sul pulsante Cerca, viene eseguita la funzione di ricerca, l'elemento
gmp-place-text-search-request viene aggiornato e l'elemento Ricerca luoghi
mostra i risultati come illustrato nei seguenti snippet. I marcatori vengono aggiunti nella
funzione helper addMarkers.
// Add event listeners to the query input and place search elements. searchButton.addEventListener('click', () => searchPlaces()); queryInput.addEventListener('keydown', (event) => { if (event.key === 'Enter') { searchPlaces(); } }); placeSearch.addEventListener('gmp-select', (event) => { const { place } = event; markers.get(place.id)?.click(); }); placeSearch.addEventListener('gmp-load', () => { addMarkers(); }); searchPlaces(); }
// The searchPlaces function is called when the user changes the query input or when the page loads. async function searchPlaces() { // Close the info window and clear the markers. infoWindow.close(); for (const marker of markers.values()) { marker.remove(); } markers.clear(); // Set the place search query and add an event listener to the place search element. if (queryInput.value) { const center = map.center; if (center) { placeSearchQuery.locationBias = center; } // The textQuery property is required for the search element to load. // Any other configured properties will be ignored if textQuery is not set. placeSearchQuery.textQuery = queryInput.value; } }
Esempio di codice completo
JavaScript
// Query selectors for various elements in the HTML file. const map = document.querySelector('gmp-map'); const placeSearch = document.querySelector('gmp-place-search'); const placeSearchQuery = document.querySelector('gmp-place-text-search-request'); const placeDetails = document.querySelector('gmp-place-details-compact'); const placeRequest = document.querySelector('gmp-place-details-place-request'); const queryInput = document.querySelector('.query-input'); const searchButton = document.querySelector('.search-button'); // Global variables for the map, markers, and info window. const markers = new Map(); let infoWindow; // The init function is called when the page loads. async function init() { // Import the necessary libraries from the Google Maps API. const [{ InfoWindow }, { Place }] = await Promise.all([ google.maps.importLibrary('maps'), google.maps.importLibrary('places'), ]); // Create a new info window and set its content to the place details element. placeDetails.remove(); // Hide the place details element because it is not needed until the info window opens infoWindow = new InfoWindow({ content: placeDetails, ariaLabel: 'Place Details', }); // Set the map options. map.innerMap.setOptions({ clickableIcons: false, mapTypeControl: false, streetViewControl: false, }); // Add event listeners to the query input and place search elements. searchButton.addEventListener('click', () => searchPlaces()); queryInput.addEventListener('keydown', (event) => { if (event.key === 'Enter') { searchPlaces(); } }); placeSearch.addEventListener('gmp-select', (event) => { const { place } = event; markers.get(place.id)?.click(); }); placeSearch.addEventListener('gmp-load', () => { addMarkers(); }); searchPlaces(); } // The searchPlaces function is called when the user changes the query input or when the page loads. async function searchPlaces() { // Close the info window and clear the markers. infoWindow.close(); for (const marker of markers.values()) { marker.remove(); } markers.clear(); // Set the place search query and add an event listener to the place search element. if (queryInput.value) { const center = map.center; if (center) { placeSearchQuery.locationBias = center; } // The textQuery property is required for the search element to load. // Any other configured properties will be ignored if textQuery is not set. placeSearchQuery.textQuery = queryInput.value; } } // The addMarkers function is called when the place search element loads. async function addMarkers() { // Import the necessary libraries from the Google Maps API. const [{ AdvancedMarkerElement }, { LatLngBounds }] = await Promise.all([ google.maps.importLibrary('marker'), google.maps.importLibrary('core'), ]); const bounds = new LatLngBounds(); if (placeSearch.places.length === 0) { return; } for (const place of placeSearch.places) { const marker = new AdvancedMarkerElement({ map: map.innerMap, position: place.location, collisionBehavior: google.maps.CollisionBehavior.REQUIRED_AND_HIDES_OPTIONAL, }); markers.set(place.id, marker); bounds.extend(place.location); marker.addListener('click', () => { placeRequest.place = place; infoWindow.open(map.innerMap, marker); }); } map.innerMap.fitBounds(bounds); } init();
CSS
html, body { height: 100%; margin: 0; } body { display: flex; flex-direction: column; font-family: Arial, Helvetica, sans-serif; } .container { display: flex; height: 100vh; width: 100%; } gmp-map { flex-grow: 1; } .ui-panel { width: 400px; margin-left: 20px; margin-right: 20px; margin-top: 10px; overflow-y: auto; font-family: Arial, Helvetica, sans-serif; } .list-container { display: flex; flex-direction: column; } gmp-place-search { width: 100%; margin: 0; border: none; color-scheme: light; } .query-input { width: 100%; padding: 8px; margin-bottom: 10px; box-sizing: border-box; } .search-button { width: 100%; padding: 8px; margin-bottom: 10px; box-sizing: border-box; background-color: #1a73e8; color: white; border: none; cursor: pointer; } .search-button:hover, .search-button:focus-visible { background-color: #1765cc; }
HTML
<!DOCTYPE html>
<html>
<head>
<title>Place 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" defer></script>
<!-- prettier-ignore -->
<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: "weekly"});
</script>
</head>
<body>
<div class="container">
<div class="ui-panel">
<div class="controls">
<input
type="text"
id="query-input"
class="query-input"
placeholder="Search for a place"
value="cafe" />
<button class="search-button">Search</button>
</div>
<div class="list-container">
<gmp-place-search selectable>
<gmp-place-all-content></gmp-place-all-content>
<gmp-place-text-search-request
max-result-count="5"></gmp-place-text-search-request>
</gmp-place-search>
</div>
</div>
<!-- map-id is required to use advanced markers. See https://developers.google.com/maps/documentation/javascript/map-ids/mapid-over. -->
<gmp-map center="-37.813,144.963" zoom="16" map-id="DEMO_MAP_ID">
</gmp-map>
</div>
<!--
The gmp-place-details-compact element is styled inline because it is
conditionally rendered and moved into the info window, which is
part of the map's shadow DOM.
-->
<gmp-place-details-compact
orientation="horizontal"
truncation-preferred
style="
width: 400px;
padding: 0;
margin: 0;
border: none;
background-color: transparent;
color-scheme: light;
">
<gmp-place-details-place-request></gmp-place-details-place-request>
<gmp-place-content-config>
<gmp-place-media></gmp-place-media>
<gmp-place-rating></gmp-place-rating>
<gmp-place-price></gmp-place-price>
<gmp-place-accessible-entrance-icon></gmp-place-accessible-entrance-icon>
<gmp-place-open-now-status></gmp-place-open-now-status>
<gmp-place-attribution
light-scheme-color="gray"
dark-scheme-color="white"></gmp-place-attribution>
</gmp-place-content-config>
</gmp-place-details-compact>
</body>
</html>