set a google marker in sencha touch - google-maps-api-3

Question

I have some problem when i set a marker, I found out this code for generate a google map and it works. But now i want to set a marker with my current position, and the problem is that i don't know where is the google map object, without this the marker isn't displayed.
this.mapg = new Ext.Map({
useCurrentLocation:true,
geo:new Ext.util.GeoLocation({
autoUpdate:true,
timeout:2000,
listeners:{
locationupdate: function(geo) {
center = new google.maps.LatLng(geo.latitude, geo.longitude);
// Set the marker
marker = new google.maps.Marker({
map:geo.map,//??? No idea where is the google map object
position: center
});
if (this.rendered)
this.update(center);
else
this.on('activate', this.onUpdate, this, {single: true, data: center});
},
locationerror: function(geo){
alert('got geo error');
}
}
})
});

Answer 1

After spending a day searching trough google, i founded this solution:
ascom.views.MapG = Ext.extend(Ext.Panel, {
layout:'card',
initComponent: function(){
var infowindow = new google.maps.InfoWindow({
content: 'prova'
});
this.map = new Ext.Map({
mapOptions : {
zoom: 12,
navigationControlOptions: {
style: google.maps.NavigationControlStyle.DEFAULT
}
},
useCurrentLocation: true,
listeners: {
maprender : function(comp, map){
var marker = new google.maps.Marker({
position: map.center,
title : 'Infofactory HQ',
map: map
});
infowindow.open(map, marker);
google.maps.event.addListener(marker, 'click', function() {
infowindow.open(map, marker);
});
}
}
});
this.panel = new Ext.Panel({
layout:'fit',
items:this.map,
dockedItems:[
{
xtype:'toolbar',
title:'Map GO'
}
]
});
this.items = this.panel;
ascom.views.MapG.superclass.initComponent.call(this);
}
});

Answer 2

It's in:
mapg.map
You don't show what mapg is a member of but you could access it explicitly.