Maps API for JavaScript Developer's Guide

Class Summary

A visual representation of the

[ For full details, see the Class Details ]

Class Description

A visual representation of the

DomIcon needs to be created with a dom element. Dom element works as a template for visual representation of the marker therefore single DomIcon can be reused across multiple DomMarkers. Provided dom node gets cloned and rendered every time when marker reaches (is visible within) the map view port therefore all previously attached event listeners will not execute. To handle cases where listeners for the dom node are in needed, user needs to add them within onAttach callback were currently displayed clone reference is available. Within onDetach callback, cloned node listener can be removed.

The onAttach and onDetach callbacks can be provided to the icon by using


var domElement = document.createElement('div'); = '20px'; = '20px'; = 'blue';

function changeOpacity(evt) { = 0.8;

var domIcon = new, {
  onAttach: function(clonedElement, domIcon, domMarker) {
  clonedElement.addEventListener('mouseover', changeOpacity);
  onDetach: function(clonedElement, domIcon, domMarker) {
  clonedElement.removeEventListener('mouseover', changeOpacity);

Constructor Details, opt_options)

{!(Element | string)}
The element or markup to use for this icon
{} [optional]

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