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feat: Migrates the map-events sample to js-api-samples. (#1258)
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‎samples/map-events/README.md‎

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# Google Maps JavaScript Sample
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## map-events
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This sample shows which events are triggered by the google.maps.Map as you interact with the map.
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## Setup
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### Before starting run:
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`npm i`
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### Run an example on a local web server
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`cd samples/map-events`
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`npm start`
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### Build an individual example
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`cd samples/map-events`
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`npm run build`
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From 'samples':
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`npm run build --workspace=map-events/`
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### Build all of the examples.
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From 'samples':
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`npm run build-all`
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### Run lint to check for problems
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`cd samples/map-events`
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`npx eslint index.ts`
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## Feedback
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For feedback related to this sample, please open a new issue on
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[GitHub](https://github.com/googlemaps-samples/js-api-samples/issues).

‎samples/map-events/index.html‎

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<!doctype html>
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<!--
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@license
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Copyright 2026 Google LLC. All Rights Reserved.
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SPDX-License-Identifier: Apache-2.0
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-->
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<!-- [START maps_map_events] -->
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<html>
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<head>
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<title>Map Events</title>
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<link rel="stylesheet" type="text/css" href="./style.css" />
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<script type="module" src="./index.js"></script>
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<!-- prettier-ignore -->
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<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))})
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({key: "AIzaSyA6myHzS10YXdcazAFalmXvDkrYCp5cLc8", v: "weekly"});</script>
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</head>
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<body>
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<gmp-map center="37.4419, -122.1419" zoom="13">
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<div id="container" slot="control-inline-start-block-start">
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<div id="sidebar"></div>
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</div>
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</gmp-map>
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</body>
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</html>
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<!-- [END maps_map_events] -->

‎samples/map-events/index.ts‎

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/**
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* @license
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* Copyright 2026 Google LLC. All Rights Reserved.
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* SPDX-License-Identifier: Apache-2.0
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*/
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// [START maps_map_event]
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const events = [
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'bounds_changed',
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'center_changed',
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'click',
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'contextmenu',
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'dblclick',
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'drag',
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'dragend',
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'dragstart',
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'heading_changed',
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'idle',
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'maptypeid_changed',
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'mousemove',
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'mouseout',
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'mouseover',
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'projection_changed',
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'resize',
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'rightclick', // use contextmenu
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'tilesloaded',
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'tilt_changed',
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'zoom_changed',
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];
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function setupListener(map: google.maps.Map, name: string) {
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const eventRow = document.getElementById(name) as HTMLElement;
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google.maps.event.addListener(map, name, () => {
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eventRow.className = 'event active';
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const timeout = setTimeout(() => {
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eventRow.className = 'event inactive';
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}, 1000);
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});
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}
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async function initMap() {
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// Request needed libraries.
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(await google.maps.importLibrary('maps')) as google.maps.MapsLibrary;
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const mapElement = document.querySelector(
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'gmp-map'
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) as google.maps.MapElement;
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populateTable();
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// Get the inner map.
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let innerMap = mapElement.innerMap;
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innerMap.setOptions({
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mapTypeControl: false,
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});
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for (let i = 0; i < events.length; i++) {
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setupListener(innerMap, events[i]);
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}
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}
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// Dynamically create the table of events from the defined hashmap
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function populateTable() {
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const eventsTable = document.getElementById('sidebar') as HTMLElement;
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for (let i = 0; i < events.length; i++) {
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const eventDiv = document.createElement('div');
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eventDiv.className = 'event';
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eventDiv.id = events[i];
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eventDiv.innerText = events[i];
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eventsTable.appendChild(eventDiv);
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}
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}
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initMap();
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// [END maps_map_event]

‎samples/map-events/package.json‎

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{
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"name": "@js-api-samples/map-events",
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"version": "1.0.0",
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"scripts": {
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"build": "tsc && bash ../jsfiddle.sh map-events && bash ../app.sh map-events && bash ../docs.sh map-events && npm run build:vite --workspace=. && bash ../dist.sh map-events",
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"test": "tsc && npm run build:vite --workspace=.",
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"start": "tsc && vite build --base './' && vite",
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"build:vite": "vite build --base './'",
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"preview": "vite preview"
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},
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"dependencies": {
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}
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}

‎samples/map-events/style.css‎

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/**
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* @license
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* Copyright 2026 Google LLC. All Rights Reserved.
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* SPDX-License-Identifier: Apache-2.0
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*/
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/* [START maps_map_events] */
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/* Optional: Makes the sample page fill the window. */
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html,
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body {
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height: 100%;
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margin: 0;
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padding: 0;
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}
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#container {
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height: 100%;
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}
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#sidebar {
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width: 280px;
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padding: 2px;
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margin-left: 10px;
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margin-top: 10px;
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overflow: hidden;
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font-size: 15px;
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font-family: 'Droid Sans Mono', monospace;
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max-width: 300px;
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background-color: white;
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}
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.active {
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background-color: #99ccff;
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}
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.inactive {
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background-color: white;
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}
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/* [END maps_map_events] */

‎samples/map-events/tsconfig.json‎

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{
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"compilerOptions": {
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"module": "esnext",
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"target": "esnext",
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"strict": true,
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"noImplicitAny": false,
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"lib": [
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"es2015",
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"esnext",
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"es6",
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"dom",
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"dom.iterable"
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],
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"moduleResolution": "Node",
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"jsx": "preserve"
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}
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}

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