public void handleUpdate(TimedPolygonModel model) {

      clear();

      LatLngBounds bounds = LatLngBounds.newInstance();

      double maxTime = model.getMaxTime();

      for (TimedPolygon tp : model.getPolygons()) {

        Polygon poly = tp.getPolyline();

        String color = getColorForTime(tp.getTime(), maxTime);
        double opacity = getOpacityForTime(tp.getTime(), maxTime);

        poly.setFillStyle(PolyStyleOptions.newInstance(color, 1, opacity));
        poly.setStrokeStyle(PolyStyleOptions.newInstance(color, 1, opacity));

        _mapOverlayManager.addOverlay(poly);
        _overlays.add(poly);
        LatLngBounds b = poly.getBounds();
        bounds.extend(b.getNorthEast());
        bounds.extend(b.getSouthWest());
      }

      if (!bounds.isEmpty()) {
        MapWidget map = _mapOverlayManager.getMapWidget();
        if (model.isComplete()) {
          int zoom = map.getBoundsZoomLevel(bounds);
          map.setCenter(bounds.getCenter(), zoom);

          List<String> colors = new ArrayList<String>();
          for (int i = 0; i <= 6; i++) {
            double ratio = i / 6.0;
            colors.add(_colormap.getColor(ratio));
          }
          String fromLabel = "0 mins";
          String toLabel = model.getMaxTime() + " mins";
          _colorGradientControl.setGradient(colors, fromLabel, toLabel);
        } else {
          map.setCenter(_queryModel.getLocation());
        }
      }
    }
  @Override
  public void onModuleLoad() {

    HistoryContextManager manager = new HistoryContextManager();

    ModelEventsSourceAndSink events = new ModelEventsImpl();
    ModelEventSourceAndSink<LocationQueryModel> locationQueryModelEvents =
        events.getEventSourceAndSink(LocationQueryModel.class);
    ModelEventSourceAndSink<QueryModel> queryModelEvents =
        events.getEventSourceAndSink(QueryModel.class);
    ModelEventSourceAndSink<ResultsModel> resultsModelEvents =
        events.getEventSourceAndSink(ResultsModel.class);
    ModelEventSourceAndSink<FilteredResultsModel> filteredResultsModelEvents =
        events.getEventSourceAndSink(FilteredResultsModel.class);
    ModelEventSourceAndSink<StateEvent> stateEvents =
        events.getEventSourceAndSink(StateEvent.class);

    /** Model Layer */
    QueryModel queryModel = new QueryModel();
    queryModel.setEventSink(locationQueryModelEvents);
    queryModel.setQueryModelEventSink(queryModelEvents);

    TimedRegionModel timedRegionModel = new TimedRegionModel();
    TimedPolygonModel timedPolygonModel = new TimedPolygonModel();

    ResultsModel resultsModel = new ResultsModel();
    resultsModel.setEvents(resultsModelEvents);

    FilteredResultsModel filteredResultsModel = new FilteredResultsModel();
    filteredResultsModel.setResultsModel(resultsModel);
    filteredResultsModel.setEvents(filteredResultsModelEvents);

    PagedResultsModel pagedResultsModel = new PagedResultsModel();
    pagedResultsModel.setModel(filteredResultsModel);
    pagedResultsModel.setEvents(stateEvents);

    TripPlanModel tripModel = new TripPlanModel();

    /** Control Layer */
    YelpLocalSearchProvider localSearchProvider =
        new YelpLocalSearchProvider("VJYMvEAOfkqDeyHh4C9gTg");
    localSearchProvider.setTimeout(10000);

    MapOverlayManager mapOverlayManager = new MapOverlayManager();

    MinTransitTimeResultHandler minTransitTimeHandler = new MinTransitTimeResultHandler();
    minTransitTimeHandler.setMapOverlayManager(mapOverlayManager);
    // minTransitTimeHandler.setTimedRegionModel(timedRegionModel);
    minTransitTimeHandler.setTimedPolygonModel(timedPolygonModel);

    OneBusAwayStandardControlImpl control = new OneBusAwayStandardControlImpl();
    control.setStateEvents(stateEvents);

    // Models
    control.setQueryModel(queryModel);
    control.setResultsModel(resultsModel);
    control.setFilteredResultsModel(filteredResultsModel);
    control.setPagedResultsModel(pagedResultsModel);
    control.setTripPlanModel(tripModel);
    // Controls
    control.setLocalSearchProvider(localSearchProvider);
    control.setMinTransitTimeResultHandler(minTransitTimeHandler);

    control.setContextManager(manager);

    minTransitTimeHandler.setControl(control);

    /** View Layer */
    MapWidget mapWidget = new MapWidget(LatLng.newInstance(47.601533, -122.32933), 11);
    mapWidget.addControl(new LargeMapControl());
    mapWidget.addControl(new MapTypeControl());
    mapWidget.addControl(new ScaleControl());

    ColorGradientControl colorGradient = new ColorGradientControl();
    mapWidget.addControl(colorGradient);

    mapOverlayManager.setMapWidget(mapWidget);

    SearchWidget searchWidget = new SearchWidget();
    searchWidget.setControl(control);
    searchWidget.setMapWidget(mapWidget);

    WelcomePagePresenter welcome = new WelcomePagePresenter();

    AddressLookupPresenter addressLookup = new AddressLookupPresenter();
    addressLookup.setControl(control);

    ResultsFilterPresenter filter = new ResultsFilterPresenter();
    filter.setControl(control);

    ResultsTablePresenter resultsTable = new ResultsTablePresenter();
    resultsTable.setControl(control);
    resultsTable.setResultsModel(pagedResultsModel);
    resultsTable.setMapOverlayManager(mapOverlayManager);
    resultsTable.setResultsFilterWidget(filter.getWidget());

    CustomTimedOverlayManager timedOverlayManager = new CustomTimedOverlayManager();
    timedOverlayManager.setMapOverlayManager(mapOverlayManager);
    timedOverlayManager.setQueryModel(queryModel);
    timedOverlayManager.setColorGradientControl(colorGradient);

    CustomTripPlanResultTablePresenter plansWidget = new CustomTripPlanResultTablePresenter();
    plansWidget.setMapWidget(mapWidget);

    ActiveResultPresenter activeResult = new ActiveResultPresenter();
    activeResult.setMapOverlayManager(mapOverlayManager);
    activeResult.setControl(control);

    MainPage mainPage = new MainPage();
    mainPage.setControl(control);
    mainPage.setMapWidget(mapWidget);
    mainPage.setSearchWidget(searchWidget);
    mainPage.addResultsPanelWidget(welcome.getWidget());
    mainPage.addResultsPanelWidget(addressLookup.getWidget());
    mainPage.addResultsPanelWidget(resultsTable.getWidget());
    mainPage.addResultsPanelWidget(activeResult.getWidget());
    mainPage.addResultsPanelWidget(plansWidget.getWidget());

    manager.addContextListener(mainPage);

    SearchOriginMapPresenter searchOriginMapMarker = new SearchOriginMapPresenter();
    searchOriginMapMarker.setMapOverlayManager(mapOverlayManager);
    searchOriginMapMarker.setLocationQueryModel(queryModel);

    /** Wire up all the listeners */
    timedRegionModel.addModelListener(timedOverlayManager.getRegionModelListener());
    timedPolygonModel.addModelListener(timedOverlayManager.getPolygonModelListener());

    locationQueryModelEvents.addModelListener(control.getQueryModelHandler());
    queryModelEvents.addModelListener(searchWidget.getQueryModelHandler());

    resultsModelEvents.addModelListener(filteredResultsModel.getResultsModelHandler());
    resultsModelEvents.addModelListener(filter.getResultsModelHandler());

    filteredResultsModelEvents.addModelListener(pagedResultsModel.getModelListener());

    tripModel.addModelListener(plansWidget);

    stateEvents.addModelListener(welcome.getStateEventListener());
    stateEvents.addModelListener(resultsTable);
    stateEvents.addModelListener(activeResult);
    stateEvents.addModelListener(searchOriginMapMarker);
    stateEvents.addModelListener(plansWidget.getStateEventHandler());
    stateEvents.addModelListener(timedOverlayManager.getStateEventHandler());
    stateEvents.addModelListener(addressLookup.getStateEventListener());

    StyleInjector.inject(OneBusAwayStandardResources.INSTANCE.getCss().getText());
    StyleInjector.inject(TripPlannerResources.INSTANCE.getCss().getText());
    StyleInjector.inject(CommonResources.INSTANCE.getApplicationCss().getText());

    mainPage.initialize();
    StandardApplicationContainer.add(mainPage);
    mainPage.onContextChanged(manager.getContext());
  }