maps.js

$(function(){
  var days = ['sunday','monday','tuesday','wednesday','thursday','friday','saturday'];
  var bounds = new google.maps.LatLngBounds();
  var visible_markers = [];
  var neighborhood_markers = {};
  var seattle = new google.maps.LatLng(47.61680985980715, -122.34203338623047);
  var options = {
    zoom: 12,
    center: seattle,
    disableDefaultUI: true,
    mapTypeId: google.maps.MapTypeId.ROADMAP
  };
  map = new google.maps.Map(document.getElementById("map_box"), options);
  
  $("#top_nav a").toggle(function(e){
    return false;
  }, function(e){
    return false;
  });

  $("#left_nav a").toggle(function(e){
    var a = $(this);
    a.addClass('active');
    var id = a.data('id');
    var neighborhood_data = neighborhoods_by_id[id];

    // map.setCenter( new google.maps.LatLng(neighborhood_data.latitude, neighborhood_data.longitude) );
    // map.setZoom( neighborhood_data.zoom );

    if (neighborhood_markers[id] == null){
      neighborhood_markers[id] = [];
      for (address_index in neighborhood_data.addresses){
        var address = neighborhood_data.addresses[address_index];
        var spot = address.spot;
        
        var marker = new google.maps.Marker({
          position: new google.maps.LatLng(address.latitude, address.longitude),
          map: map,
          title: spot.name,
          icon: new google.maps.MarkerImage('images/icon_truck.png')
        });
        marker.address = address;
        show_marker(marker);
        neighborhood_markers[id].push(marker);
      }
    } else {
      $.each(neighborhood_markers[id], function(index,marker){
        show_marker(marker);
      });
    }

    update_bounds();
    return false;
  }, function(e){
    var a = $(this);
    a.removeClass('active');
    var id = a.data('id');
    $.each(neighborhood_markers[id], function(index,marker){
      hide_marker(marker);
    });

    update_bounds();
    return false;
  });

  function show_marker(marker){
    marker.setMap(map);
    visible_markers.push(marker);
  }
  function hide_marker(marker){
    visible_markers.splice($.inArray(marker), 1);
    marker.setMap(null);
  }
  function update_bounds(){
    console.log("ub!");
    // UPDATE enabled days nav
    var days_enabled = {};
    $.each(days, function(i, day){
      days_enabled[day] = false;
    });
    $("#top_nav a").removeClass('active').addClass('disabled');

    $.each(visible_markers, function(i,marker){
      $.each(days,function(i,day){
        if (marker.address[day] === true) days_enabled[day] = true;
      });
    });

    $.each(days_enabled, function(day, enabled){
      if (enabled === true) $("#top_nav #" + day).removeClass('disabled');
    });

    // UPDATE bounds
    bounds = new google.maps.LatLngBounds();
    $.each(visible_markers, function(index,marker){
      bounds.extend(marker.getPosition());
    });
    if (visible_markers.length > 0){
      // map.fitBounds(bounds);
      setTimeout( function() {
        map.fitBounds(bounds); 
        var max_zoom = neighborhoods_by_id[$('#left_nav a.active').data('id')].zoom;
        if (map.getZoom() > max_zoom) map.setZoom(max_zoom);
      }, 1);
    }else {
      map.setCenter(options.center);
      map.setZoom(options.zoom);
    }
  }

});