Google Map Layer Add Infowindow and Map Type

Hi Anton, i'm new on ExtJS but i have experience in javascript and Google Map JS API, i want to add infowindow to Google Map Layer, but i'm not found Google Map code such as Google Map Initialization, Create Marker in web folder.

This is InfoWindow code that i usually use :

    var infowindow = new google.maps.InfoWindow({
      content: "Infowindow Content"
    });

    var marker = new google.maps.Marker({
      position: uluru,
      map: map,
      title: 'Uluru (Ayers Rock)'
    });
    marker.addListener('click', function() {
      infowindow.open(map, marker);
    });

Reference : https://developers.google.com/maps/documentation/javascript/examples/infowindow-simple

Thank You

Traccar doesn't use Google Maps API, so I'm not sure why you expect to find it.

Is it use openstreetmap ?

So if i add google map in custom layer it still use osm but the tile is from google map?

If that true, so to show infowindow maybe i can use this code

var infobox = new khtml.maplib.overlay.InfoWindow({content: "This is a marker-infobox!"});

marker.attachEvent( 'click', function() {
        infobox.open(map, this);
});

Reference : https://wiki.openstreetmap.org/wiki/Marker_API

Update :

After check some code, is traccar use OpenLayers to create Map, Add Marker and other map function ?

Reference : http://openlayers.org/en/latest/examples/popup.html & https://openlayers.org/en/latest/apidoc/ol.Map.html#addOverlay

Yes, Traccar uses OpenLayers.