This example demonstrates adding event handling to some gmp-advanced-marker elements, to show an InfoWindow when a marker is clicked.
Read the documentation.
TypeScript
// This example adds a map using web components. async function initMap(): Promise<void> { const { Map } = await google.maps.importLibrary("maps") as google.maps.MapsLibrary; const { AdvancedMarkerElement } = await google.maps.importLibrary("marker") as google.maps.MarkerLibrary; console.log('Maps JavaScript API loaded.'); const advancedMarkers = document.querySelectorAll("#marker-click-event-example gmp-advanced-marker"); for (const advancedMarker of advancedMarkers) { customElements.whenDefined(advancedMarker.localName).then(async () => { advancedMarker.addEventListener('gmp-click', async () => { const infoWindow = new google.maps.InfoWindow({ //@ts-ignore content: advancedMarker.title, }); infoWindow.open({ //@ts-ignore anchor: advancedMarker }); }); }); } } initMap();
JavaScript
// This example adds a map using web components. async function initMap() { const { Map } = await google.maps.importLibrary("maps"); const { AdvancedMarkerElement } = await google.maps.importLibrary("marker"); console.log("Maps JavaScript API loaded."); const advancedMarkers = document.querySelectorAll( "#marker-click-event-example gmp-advanced-marker", ); for (const advancedMarker of advancedMarkers) { customElements.whenDefined(advancedMarker.localName).then(async () => { advancedMarker.addEventListener("gmp-click", async () => { const infoWindow = new google.maps.InfoWindow({ //@ts-ignore content: advancedMarker.title, }); infoWindow.open({ //@ts-ignore anchor: advancedMarker, }); }); }); } } initMap();
CSS
/* * 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; } gmp-map { height: 400px; }
HTML
<html> <head> <title>Add a Map Web Component with Events</title> <link rel="stylesheet" type="text/css" href="./style.css" /> <script type="module" src="./index.js"></script> </head> <body> <gmp-map id="marker-click-event-example" center="43.4142989,-124.2301242" zoom="4" map-id="DEMO_MAP_ID" > <gmp-advanced-marker position="37.4220656,-122.0840897" title="Mountain View, CA" gmp-clickable ></gmp-advanced-marker> <gmp-advanced-marker position="47.648994,-122.3503845" title="Seattle, WA" gmp-clickable ></gmp-advanced-marker> </gmp-map> <!-- 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: "AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg", v: "beta"});</script> </body> </html>Try Sample
Clone Sample
Git and Node.js are required to run this sample locally. Follow these instructions to install Node.js and NPM. The following commands clone, install dependencies and start the sample application.
git clone -b sample-web-components-events https://github.com/googlemaps/js-samples.gitcd js-samplesnpm inpm start
Other samples can be tried by switching to any branch beginning with sample-SAMPLE_NAME.
git checkout sample-SAMPLE_NAMEnpm inpm start