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Control Options

Page Summary

This code demonstrates how to customize the Map Type control in Google Maps to display as a dropdown menu.
It utilizes the MapTypeControlOptions and specifically the style property set to DROPDOWN_MENU to achieve this.
The example also shows how to limit the map types displayed in the dropdown to "roadmap" and "terrain" using the mapTypeIds property.
The sample provides both TypeScript and JavaScript implementations along with the necessary HTML and CSS for rendering.

This example sets the Map Type control to use the dropdown style.

Read the documentation .

TypeScript

 // You can set control options to change the default position or style of many 
 // of the map controls. 
 async 
  
 function 
  
 init 
 () 
  
 { 
  
 //  Request the needed libraries. 
  
 const 
  
 [{ 
  
 MapTypeControlStyle 
 , 
  
 MapTypeId 
  
 }, 
  
 { 
  
 ControlPosition 
  
 }] 
  
 = 
  
 await 
  
 Promise 
 . 
 all 
 ([ 
  
 google 
 . 
 maps 
 . 
 importLibrary 
 ( 
 'maps' 
 ), 
  
 google 
 . 
 maps 
 . 
 importLibrary 
 ( 
 'core' 
 ), 
  
 ]); 
  
 const 
  
 mapElement 
  
 = 
  
 document 
 . 
 querySelector 
 ( 
 'gmp-map' 
 ) 
 ! 
 ; 
  
 const 
  
 innerMap 
  
 = 
  
 mapElement 
 . 
 innerMap 
 ; 
  
 innerMap 
 . 
 setOptions 
 ({ 
  
 mapTypeControl 
 : 
  
 true 
 , 
  
 mapTypeControlOptions 
 : 
  
 { 
  
 style 
 : 
  
 MapTypeControlStyle.DROPDOWN_MENU 
 , 
  
 mapTypeIds 
 : 
  
 [ 
 MapTypeId 
 . 
 ROADMAP 
 , 
  
 MapTypeId 
 . 
 TERRAIN 
 ], 
  
 position 
 : 
  
 ControlPosition.TOP_CENTER 
 , 
  
 }, 
  
 }); 
 } 
 void 
  
 init 
 (); 
   index 
 . 
 ts

JavaScript

 // You can set control options to change the default position or style of many 
 // of the map controls. 
 async 
  
 function 
  
 init 
 () 
  
 { 
  
 //  Request the needed libraries. 
  
 const 
  
 [{ 
  
 MapTypeControlStyle 
 , 
  
 MapTypeId 
  
 }, 
  
 { 
  
 ControlPosition 
  
 }] 
  
 = 
  
 await 
  
 Promise 
 . 
 all 
 ([ 
  
 google 
 . 
 maps 
 . 
 importLibrary 
 ( 
 'maps' 
 ), 
  
 google 
 . 
 maps 
 . 
 importLibrary 
 ( 
 'core' 
 ), 
  
 ]); 
  
 const 
  
 mapElement 
  
 = 
  
 document 
 . 
 querySelector 
 ( 
 'gmp-map' 
 ); 
  
 const 
  
 innerMap 
  
 = 
  
 mapElement 
 . 
 innerMap 
 ; 
  
 innerMap 
 . 
 setOptions 
 ({ 
  
 mapTypeControl 
 : 
  
 true 
 , 
  
 mapTypeControlOptions 
 : 
  
 { 
  
 style 
 : 
  
 MapTypeControlStyle 
 . 
 DROPDOWN_MENU 
 , 
  
 mapTypeIds 
 : 
  
 [ 
 MapTypeId 
 . 
 ROADMAP 
 , 
  
 MapTypeId 
 . 
 TERRAIN 
 ], 
  
 position 
 : 
  
 ControlPosition 
 . 
 TOP_CENTER 
 , 
  
 }, 
  
 }); 
 } 
 void 
  
 init 
 (); 
   index 
 . 
 js

CSS

 /* 
 * Always set the map height explicitly to define the size of the div element 
 * that contains the map. 
 */ 
 gmp-map 
  
 { 
  
 height 
 : 
  
 100 
 % 
 ; 
 } 
 /* 
 * Optional: Makes the sample page fill the window. 
 */ 
 html 
 , 
 body 
  
 { 
  
 height 
 : 
  
 100 
 % 
 ; 
  
 margin 
 : 
  
 0 
 ; 
  
 padding 
 : 
  
 0 
 ; 
 } 
   style 
 . 
 css

HTML

<html>
    <head>
        <title>Control Options</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: "AIzaSyA6myHzS10YXdcazAFalmXvDkrYCp5cLc8"
            });
        </script>
    </head>
    <body>
        <gmp-map
            center="-44.03416970075901, 170.4710062642279"
            zoom="8"></gmp-map>
    </body>
</html>  index.html

Try Sample

JSFiddle.net

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 
  
 https 
 : 
 //github.com/googlemaps-samples/js-api-samples.git 
 
  
  cd 
  
 samples 
 / 
 control 
 - 
 options 
 
  
  npm 
  
 i 
 
  
  npm 
  
 start