ai-powered-summaries

Sample code supporting Google Maps Platform JavaScript API documentation. author(s): Geo Developer IX Documentation Team

HTML

<!doctype html>
<!--
 @license
 Copyright 2025 Google LLC. All Rights Reserved.
 SPDX-License-Identifier: Apache-2.0
-->

<html>
    <head>
        <title>AI Place Summaries</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>
        <gmp-map center="37.80, -122.425" zoom="14" map-id="DEMO_MAP_ID">
            <!-- Search Input Card -->
            <div
                class="place-autocomplete-card"
                slot="control-inline-start-block-start">
                <gmp-place-autocomplete
                    placeholder="Find places with AI summaries"></gmp-place-autocomplete>
            </div>

            <!-- Summary text panel (initially hidden) -->
            <div
                id="summary-panel"
                class="summary-card hidden"
                slot="control-inline-end-block-start">
                <div id="place-header">
                    <h2 id="place-name"></h2>
                    <p id="place-address"></p>
                </div>

                <!-- Tabs for toggling summary types -->
                <div class="tab-container"...

CSS

/**
 * @license
 * Copyright 2025 Google LLC. All Rights Reserved.
 * SPDX-License-Identifier: Apache-2.0
 */

/* Reuse existing map height */
gmp-map {
    height: 100%;
}

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

/* Existing Autocomplete Card Style */
.place-autocomplete-card {
    background-color: #fff;
    border-radius: 5px;
    box-shadow: rgba(0, 0, 0, 0.35) 0px 5px 15px;
    margin: 10px;
    padding: 2px;
    font-family: Roboto, sans-serif;
    font-size: 1rem;
}

gmp-place-autocomplete {
    width: 330px;
}

/* New: Summary Panel Styles */
.summary-card {
    background-color: #fff;
    border-radius: 5px;
    box-shadow: rgba(0, 0, 0, 0.35) 0px 5px 15px;
    margin: 10px;
    padding: 0; /* Padding handled by children */
    font-family: Roboto, sans-serif;
    width: 350px;
    max-height: 80vh; /* Prevent overflow on small screens */
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.hidden {
    display: none;
}

#place-header {
    padding: 15px;
    background-color: #f8f9fa;
    border-bottom: 1px solid #ddd;
}

#place-header h2 {
    margin: 0 0 5px 0;
    font-size: 1.2rem;
}

#place-address {
    margin: 0;
    color: #555;
    font-size: 0.9rem;
}

/* Tab Navigation */
.tab-container {
    display: flex;
    border-bottom: 1px solid #ddd;
    background-color: #fff;
}

.tab-button {
    flex: 1;
    background: none;
    border: none;
    padding: 10px;
    cursor: pointer;
    font-weight: 500;
    color: #555;
    border-bottom: 3px solid transparent;
}

.tab-button:hover {
    background-color: #f1f1f1;
}

.tab-button.active {
    font-weight: bold;
    border-bottom: 3px solid #000000;
}

.tab-button.active:hover {
    background-color: #ffffff;
    cursor: default;
}

/* Content Area */
.content-area {
    padding: 15px;
    line-height: 1.5;
    font-size: 0.95rem;
    color: #333;
}

.disclosure-footer {
    font-size: 0.75rem;
    color: #666;
    padding: 10px 15px;
    border-top: 1px...

JavaScript

'use strict';
/*
 * @license
 * Copyright 2025 Google LLC. All Rights Reserved.
 * SPDX-License-Identifier: Apache-2.0
 */

// Define DOM elements.
const mapElement = document.querySelector('gmp-map');
const placeAutocomplete = document.querySelector('gmp-place-autocomplete');
const summaryPanel = document.getElementById('summary-panel');
const placeName = document.getElementById('place-name');
const placeAddress = document.getElementById('place-address');
const tabContainer = document.getElementById('tab-container');
const summaryContent = document.getElementById('summary-content');
const aiDisclosure = document.getElementById('ai-disclosure');
const flagContentLink = document.getElementById('flag-content-link');

let innerMap;
let marker;

async function init() {
    // Request needed libraries.
    const [{ AdvancedMarkerElement }] = await Promise.all([
        google.maps.importLibrary('marker'),
        google.maps.importLibrary('places'),
    ]);

    innerMap = mapElement.innerMap;
    innerMap.setOptions({
        mapTypeControl: false,
        streetViewControl: false,
        fullscreenControl: false,
    });

    // Bind autocomplete bounds to map bounds.
    innerMap.addListener('bounds_changed', () => {
        placeAutocomplete.locationRestriction = innerMap.getBounds();
    });

    // Create the marker.
    marker = new AdvancedMarkerElement({
        map: innerMap,
    });

    // Handle selection of an autocomplete result.
    placeAutocomplete.addEventListener(
        'gmp-select',
        async ({ placePrediction }) => {
            const place = placePrediction.toPlace();

            // Fetch all summary fields.

            await place.fetchFields({
                fields: [
                    'displayName',
                    'formattedAddress',
                    'location',
                    'generativeSummary',
                    'neighborhoodSummary',
                    'reviewSummary',
                   ...