/*
OMS doesn't cancel the original click event, so the topmost marker will get a click event while spiderfying.
Also, OMS only supports a global callback for all managed markers. Therefore, we will use a custom event that gets fired
for each marker.
*/

window.setupOMS = function() {
  window.oms = new OverlappingMarkerSpiderfier(map, {
    keepSpiderfied: true,
    legWeight: 3.5,
    legColors: {
      usual: '#FFFF00',
      highlighted: '#FF0000'
    }
  });

  window.oms.addListener('click', function(marker) {
    map.closePopup();
    marker.fireEvent('spiderfiedclick', {target: marker});
  });
  window.oms.addListener('spiderfy', function(markers) {
    map.closePopup();
  });
  map._container.addEventListener("keypress", function(ev) {
    if(ev.keyCode === 27) // Esc
      window.oms.unspiderfy();
  }, false);
}

window.registerMarkerForOMS = function(marker) {
  marker.on('add', function () {
    window.oms.addMarker(marker);
  });
  marker.on('remove', function () {
    window.oms.removeMarker(marker);
  });
  if(marker._map) // marker has already been added
    window.oms.addMarker(marker);
}