how to mark user's current location on Primefaces Gmap?

Question

In Gmap we can mark, desired location by passing custom latitude and longitude. Is there any way to add marker to map for user\'s CURRENT LOCATION.? Is there a way to get us

Answer 1

In addition to BalusC's answer a quote from the Google Maps API documentation (Primefaces uses this API under the hood):

Newer browsers are starting to support the W3C Geolocation standard. This standard is part of HTML5 and will likely become the de-facto standard going forward. All applications that wish to perform geolocation should support this standard.

Some browsers use IP addresses to detect a user's location; however, As a user's IP address can only provide a rough estimate of a user's location, we don't recommend using this approach for geolocation. The W3C approach is the easiest and most fully-supported so it should be prioritized over other methods.

Here is a short example from the given link:

var initialLocation;
var browserSupportFlag =  new Boolean();
// Try W3C Geolocation (Preferred)
  if(navigator.geolocation) {
    browserSupportFlag = true;
    navigator.geolocation.getCurrentPosition(function(position) {
      initialLocation = new google.maps.LatLng(position.coords.latitude,position.coords.longitude);
      map.setCenter(initialLocation);
    }, function() {
      handleNoGeolocation(browserSupportFlag);
    });
  }

Normally, the user will be prompted and asked for permission when a website tries to access location information.

You could first try this and if it fails go on with Balusc's answer.