You can make markers more accessible by enabling click event handling, adding descriptive text for screen readers, and adjusting the marker scale.
- When a marker is clickable (or draggable), it can respond to keyboard and mouse input.
- Text specified in the
title
option is readable by screen readers, and will display when a user holds the mouse pointer over the marker. - Increasing the size of markers reduces the precision required to interact with it across all devices — especially touchscreen devices — and improves accessibility. Default markers meet the WCAG AA minimum size standard but for developers aiming to comply with the WCAG AAA target size standard the marker size should be increased.
See basic marker customization to learn how to change marker scale, add title text, and more.
The following example shows a map with five clickable, focusable markers that include title text, and have been set to 1.5x scale:
To navigate markers using the keyboard:
- Use the tab key to focus on the first marker; if there are multiple markers on the same map, use the arrow keys to cycle through the markers.
- If the marker is clickable, press the enter key to "click". If a marker has an info window, you can open it by clicking, or by pressing the enter key or space bar. When the info window closes, focus will return to the associated marker.
- Press tab again to continue moving through the rest of the map controls.
Make a marker clickable
This section shows you how to make markers respond to click events. To make a marker clickable:
- Set the
gmpClickable
property totrue
.
TypeScript
const marker = new AdvancedMarkerElement({ position, map, title: `${i + 1}. ${title}`, content: pin.element, gmpClickable: true, });
JavaScript
const marker = new AdvancedMarkerElement({ position, map, title: `${i + 1}. ${title}`, content: pin.element, gmpClickable: true, });
- Add a click event listener to respond to user input.
TypeScript
// Add a click listener for each marker, and set up the info window. marker.addListener('click', ({ domEvent, latLng }) => { const { target } = domEvent; infoWindow.close(); infoWindow.setContent(marker.title); infoWindow.open(marker.map, marker); });
JavaScript
// Add a click listener for each marker, and set up the info window. marker.addListener("click", ({ domEvent, latLng }) => { const { target } = domEvent; infoWindow.close(); infoWindow.setContent(marker.title); infoWindow.open(marker.map, marker); });
To make a marker unclickable again, call
removeListener
to remove the click event listener:// Remove the listener. google.maps.event.removeListener(clickListener);
To further enhance accessibility:
- Set descriptive text for a marker using the
AdvancedMarkerElement.title
option. - Increase marker scale using the
scale
property ofPinElement
.
Complete example code
See the complete example source code
TypeScript
async function initMap() { // Request needed libraries. const { Map, InfoWindow } = await google.maps.importLibrary("maps") as google.maps.MapsLibrary; const { AdvancedMarkerElement, PinElement } = await google.maps.importLibrary("marker") as google.maps.MarkerLibrary; const map = new Map(document.getElementById("map") as HTMLElement, { zoom: 12, center: { lat: 34.84555, lng: -111.8035 }, mapId: '4504f8b37365c3d0', }); // Set LatLng and title text for the markers. The first marker (Boynton Pass) // receives the initial focus when tab is pressed. Use arrow keys to move // between markers; press tab again to cycle through the map controls. const tourStops = [ { position: { lat: 34.8791806, lng: -111.8265049 }, title: "Boynton Pass" }, { position: { lat: 34.8559195, lng: -111.7988186 }, title: "Airport Mesa" }, { position: { lat: 34.832149, lng: -111.7695277 }, title: "Chapel of the Holy Cross" }, { position: { lat: 34.823736, lng: -111.8001857 }, title: "Red Rock Crossing" }, { position: { lat: 34.800326, lng: -111.7665047 }, title: "Bell Rock" }, ]; // Create an info window to share between markers. const infoWindow = new InfoWindow(); // Create the markers. tourStops.forEach(({position, title}, i) => { const pin = new PinElement({ glyph: `${i + 1}`, scale: 1.5, }); const marker = new AdvancedMarkerElement({ position, map, title: `${i + 1}. ${title}`, content: pin.element, gmpClickable: true, }); // Add a click listener for each marker, and set up the info window. marker.addListener('click', ({ domEvent, latLng }) => { const { target } = domEvent; infoWindow.close(); infoWindow.setContent(marker.title); infoWindow.open(marker.map, marker); }); }); } initMap();
JavaScript
async function initMap() { // Request needed libraries. const { Map, InfoWindow } = await google.maps.importLibrary("maps"); const { AdvancedMarkerElement, PinElement } = await google.maps.importLibrary( "marker", ); const map = new Map(document.getElementById("map"), { zoom: 12, center: { lat: 34.84555, lng: -111.8035 }, mapId: "4504f8b37365c3d0", }); // Set LatLng and title text for the markers. The first marker (Boynton Pass) // receives the initial focus when tab is pressed. Use arrow keys to move // between markers; press tab again to cycle through the map controls. const tourStops = [ { position: { lat: 34.8791806, lng: -111.8265049 }, title: "Boynton Pass", }, { position: { lat: 34.8559195, lng: -111.7988186 }, title: "Airport Mesa", }, { position: { lat: 34.832149, lng: -111.7695277 }, title: "Chapel of the Holy Cross", }, { position: { lat: 34.823736, lng: -111.8001857 }, title: "Red Rock Crossing", }, { position: { lat: 34.800326, lng: -111.7665047 }, title: "Bell Rock", }, ]; // Create an info window to share between markers. const infoWindow = new InfoWindow(); // Create the markers. tourStops.forEach(({ position, title }, i) => { const pin = new PinElement({ glyph: `${i + 1}`, scale: 1.5, }); const marker = new AdvancedMarkerElement({ position, map, title: `${i + 1}. ${title}`, content: pin.element, gmpClickable: true, }); // Add a click listener for each marker, and set up the info window. marker.addListener("click", ({ domEvent, latLng }) => { const { target } = domEvent; infoWindow.close(); infoWindow.setContent(marker.title); infoWindow.open(marker.map, marker); }); }); } initMap();
CSS
/* * Always set the map height explicitly to define the size of the div element * that contains the map. */ #map { height: 100%; } /* * Optional: Makes the sample page fill the window. */ html, body { height: 100%; margin: 0; padding: 0; }
HTML
<html> <head> <title>Advanced Marker Accessibility</title> <link rel="stylesheet" type="text/css" href="./style.css" /> <script type="module" src="./index.js"></script> </head> <body> <div id="map"></div> <!-- prettier-ignore --> <script>(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${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>