การค้นหาข้อความ (ใหม่)

let map: google.maps.Map;
let markers: Record<string, google.maps.marker.AdvancedMarkerElement> = {};
let infoWindow: google.maps.InfoWindow;

async function init() {
    const [{ Map, InfoWindow }, { ControlPosition }] = await Promise.all([
        google.maps.importLibrary('maps'),
        google.maps.importLibrary('core'),
    ]);

    const center = { lat: 37.4161493, lng: -122.0812166 };
    map = new Map(document.getElementById('map')!, {
        center,
        zoom: 11,
        mapTypeControl: false,
        mapId: 'DEMO_MAP_ID',
    });

    const textInput = document.getElementById('text-input') as HTMLInputElement;
    const textInputButton = document.getElementById(
        'text-input-button'
    ) as HTMLButtonElement;
    const card = document.getElementById('text-input-card')!;
    map.controls[ControlPosition.TOP_LEFT].push(card);

    textInputButton.addEventListener('click', () => {
        void findPlaces(textInput.value);
    });

    textInput.addEventListener('keydown', (event) => {
        if (event.key === 'Enter') {
            void findPlaces(textInput.value);
        }
    });

    infoWindow = new InfoWindow();
}

async function findPlaces(query: string) {
    const [{ Place }, { AdvancedMarkerElement }] = await Promise.all([
        google.maps.importLibrary('places'),
        google.maps.importLibrary('marker'),
    ]);

    const request = {
        textQuery: query,
        fields: ['displayName', 'location', 'businessStatus'],
        includedType: '', // Restrict query to a specific type (leave blank for any).
        useStrictTypeFiltering: true,
        locationRestriction: map.getBounds(),
        isOpenNow: true,
        language: 'en-US',
        maxResultCount: 8,
        minRating: 1, // Specify a minimum rating.
        region: 'us',
    };

    const { places } = await Place.searchByText(request);

    if (places.length) {
        const { LatLngBounds } = await google.maps.importLibrary('core');
        const bounds = new LatLngBounds();

        // First remove all existing markers.
        for (const id in markers) {
            markers[id].map = null;
        }
        markers = {};

        // Loop through and get all the results.
        places.forEach((place: google.maps.places.Place) => {
            const marker = new AdvancedMarkerElement({
                map,
                position: place.location,
                title: place.displayName,
                gmpClickable: true,
            });
            markers[place.id] = marker;

            marker.addEventListener('gmp-click', () => {
                map.panTo(place.location!);
                updateInfoWindow(place.displayName!, place.id, marker);
            });

            if (place.location != null) {
                bounds.extend(place.location);
            }
        });

        map.fitBounds(bounds);
    } else {
        console.log('No results');
    }
}

// Helper function to create an info window.
function updateInfoWindow(
    title: string | Element | null,
    content: string | Element | null,
    anchor: google.maps.marker.AdvancedMarkerElement
) {
    infoWindow.setContent(content);
    infoWindow.setHeaderContent(title);
    infoWindow.open({
        map,
        anchor,
        shouldFocus: false,
    });
}

void init();
index.ts

let map;
let markers = {};
let infoWindow;

async function init() {
    const [{ Map, InfoWindow }, { ControlPosition }] = await Promise.all([
        google.maps.importLibrary('maps'),
        google.maps.importLibrary('core'),
    ]);

    const center = { lat: 37.4161493, lng: -122.0812166 };
    map = new Map(document.getElementById('map'), {
        center,
        zoom: 11,
        mapTypeControl: false,
        mapId: 'DEMO_MAP_ID',
    });

    const textInput = document.getElementById('text-input');
    const textInputButton = document.getElementById('text-input-button');
    const card = document.getElementById('text-input-card');
    map.controls[ControlPosition.TOP_LEFT].push(card);

    textInputButton.addEventListener('click', () => {
        void findPlaces(textInput.value);
    });

    textInput.addEventListener('keydown', (event) => {
        if (event.key === 'Enter') {
            void findPlaces(textInput.value);
        }
    });

    infoWindow = new InfoWindow();
}

async function findPlaces(query) {
    const [{ Place }, { AdvancedMarkerElement }] = await Promise.all([
        google.maps.importLibrary('places'),
        google.maps.importLibrary('marker'),
    ]);

    const request = {
        textQuery: query,
        fields: ['displayName', 'location', 'businessStatus'],
        includedType: '', // Restrict query to a specific type (leave blank for any).
        useStrictTypeFiltering: true,
        locationRestriction: map.getBounds(),
        isOpenNow: true,
        language: 'en-US',
        maxResultCount: 8,
        minRating: 1, // Specify a minimum rating.
        region: 'us',
    };

    const { places } = await Place.searchByText(request);

    if (places.length) {
        const { LatLngBounds } = await google.maps.importLibrary('core');
        const bounds = new LatLngBounds();

        // First remove all existing markers.
        for (const id in markers) {
            markers[id].map = null;
        }
        markers = {};

        // Loop through and get all the results.
        places.forEach((place) => {
            const marker = new AdvancedMarkerElement({
                map,
                position: place.location,
                title: place.displayName,
                gmpClickable: true,
            });
            markers[place.id] = marker;

            marker.addEventListener('gmp-click', () => {
                map.panTo(place.location);
                updateInfoWindow(place.displayName, place.id, marker);
            });

            if (place.location != null) {
                bounds.extend(place.location);
            }
        });

        map.fitBounds(bounds);
    } else {
        console.log('No results');
    }
}

// Helper function to create an info window.
function updateInfoWindow(title, content, anchor) {
    infoWindow.setContent(content);
    infoWindow.setHeaderContent(title);
    infoWindow.open({
        map,
        anchor,
        shouldFocus: false,
    });
}

void init();
index.js

/* 
 * 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;
}

#text-input-card {
    width: 25%;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: rgba(0, 0, 0, 0.35) 0px 5px 15px;
    margin: 10px;
    padding: 5px;
    font-family: Roboto, sans-serif;
    font-size: large;
    font-weight: bold;
}

#text-input {
    width: 100%;
    padding: 10px;
    margin: 0;
    box-sizing: border-box;
}

#text-input-button {
    display: inline-block;
    margin-top: 0.5rem;
    width: auto;
    padding: 0.6rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #fff;
    background-color: #2563eb;
    border: none;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: background-color 0.15s ease-in-out;
    text-align: center;
}
style.css

<html>
    <head>
        <title>Text Search</title>

        <link rel="stylesheet" type="text/css" href="./style.css" />
        <script type="module" src="./index.js"></script>
        <script>
            // prettier-ignore
            (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: "GOOGLE_MAPS_API_KEY"
            });
        </script>
    </head>
    <body>
        <div id="text-input-card">
            <input
                type="text"
                id="text-input"
                placeholder="Search for a place" />
            <input type="button" id="text-input-button" value="Search" />
        </div>
        <div id="map"></div>
    </body>
</html>
index.html