location.js

// import Setting from React up here


function setHasLocationPermission(hasPerm) {
  Settings.set({hasLocationPermission: hasPerm});
}

navigator.geolocation.getCurrentPosition(
  (position) => setHasLocationPermission(true),
  (error) => {
    switch(error.code) {
      case error.PERMISSION_DENIED:
        setHasLocationPermission(false);
        break;
      case error.POSITION_UNAVAILABLE:
      case error.TIMEOUT:
        // Do something here like try again...
        break;
    }
  }
);