teichmann@5835: package org.dive4elements.river.client.client.ui.map;
ingo@1400: 
ingo@1400: import java.util.List;
ingo@1400: 
ingo@1400: import com.google.gwt.core.client.GWT;
ingo@1400: import com.google.gwt.user.client.rpc.AsyncCallback;
ingo@1400: 
ingo@1400: import com.smartgwt.client.util.SC;
aheinecke@5794: import com.smartgwt.client.widgets.grid.ListGridRecord;
ingo@1400: 
ingo@1400: import org.gwtopenmaps.openlayers.client.Map;
ingo@1400: import org.gwtopenmaps.openlayers.client.LonLat;
ingo@1400: import org.gwtopenmaps.openlayers.client.Pixel;
ingo@1400: import org.gwtopenmaps.openlayers.client.event.MapClickListener;
ingo@1400: 
teichmann@5835: import org.dive4elements.river.client.shared.model.FeatureInfo;
ingo@1400: 
teichmann@5835: import org.dive4elements.river.client.client.FLYSConstants;
teichmann@5835: import org.dive4elements.river.client.client.services.GFIService;
teichmann@5835: import org.dive4elements.river.client.client.services.GFIServiceAsync;
teichmann@5835: import org.dive4elements.river.client.shared.model.FacetRecord;
teichmann@5835: import org.dive4elements.river.client.shared.model.Theme;
teichmann@5835: import org.dive4elements.river.client.shared.model.AttributedTheme;
teichmann@5835: import org.dive4elements.river.client.shared.model.FeatureInfoResponse;
teichmann@5835: import org.dive4elements.river.client.client.ui.ThemePanel;
ingo@1400: 
ingo@1400: 
ingo@1400: public class GetFeatureInfo implements MapClickListener {
ingo@1400: 
ingo@1400:     protected GFIServiceAsync gfiService = GWT.create(GFIService.class);
ingo@1400: 
ingo@1400:     protected FLYSConstants MSG = GWT.create(FLYSConstants.class);
ingo@1400: 
ingo@2439:     protected GetFeatureInfoWindow gfiWindow;
ingo@2439: 
ingo@1404:     protected Map        map;
ingo@1404:     protected ThemePanel themePanel;
ingo@1404:     protected String     infoFormat;
ingo@1400: 
ingo@1400: 
ingo@1400:     /**
ingo@1400:      * @param map
ingo@1400:      * @param themes
ingo@1400:      * @param url
ingo@1400:      * @param infoFormat
ingo@1400:      */
ingo@1404:     public GetFeatureInfo(Map map, ThemePanel themePanel, String infoFormat) {
ingo@1400:         this.map        = map;
ingo@1404:         this.themePanel = themePanel;
ingo@1400:         this.infoFormat = infoFormat;
ingo@1400:     }
ingo@1400: 
ingo@1400: 
ingo@1400:     public void activate(boolean activate) {
ingo@1400:         if (activate) {
ingo@1400:             map.addMapClickListener(this);
ingo@1400:         }
ingo@1400:         else {
ingo@1400:             map.removeListener(this);
ingo@1400:         }
ingo@1400:     }
ingo@1400: 
ingo@1400: 
aheinecke@5813:     protected void newGetFeatureInfoWindow(List<FeatureInfo> features, String title) {
ingo@2439:         if (gfiWindow != null) {
ingo@2439:             gfiWindow.destroy();
ingo@2439:         }
ingo@2439: 
aheinecke@5813:         gfiWindow = new GetFeatureInfoWindow(features, title);
ingo@2439:         gfiWindow.show();
ingo@2439:     }
ingo@2439: 
aheinecke@5818:     protected void newGetFeatureInfoWindow(String response, String title) {
aheinecke@5818:         if (gfiWindow != null) {
aheinecke@5818:             gfiWindow.destroy();
aheinecke@5818:         }
aheinecke@5818: 
aheinecke@5818:         gfiWindow = new GetFeatureInfoWindow(response, title);
aheinecke@5818:         gfiWindow.show();
aheinecke@5818:     }
ingo@2439: 
ingo@1400:     @Override
ingo@1400:     public void onClick(MapClickListener.MapClickEvent e) {
ingo@1400:         LonLat lonlat = e.getLonLat();
ingo@1400:         Pixel  pixel  = map.getPixelFromLonLat(lonlat);
ingo@1400: 
aheinecke@5794:         if (themePanel.getSelectedRecords().length == 0) {
aheinecke@5794:             SC.say(MSG.requireTheme());
aheinecke@5794:         }
ingo@1400: 
aheinecke@5794:         for (ListGridRecord rec : themePanel.getSelectedRecords()) {
aheinecke@5794:             Theme act_theme = ((FacetRecord)rec).getTheme();
aheinecke@5813:             final AttributedTheme at = (AttributedTheme)act_theme;
aheinecke@5794:             gfiService.query(
aheinecke@5794:                 act_theme,
aheinecke@5794:                 infoFormat,
aheinecke@5794:                 map.getExtent().toString(),
aheinecke@5794:                 map.getProjection(),
aheinecke@5794:                 (int) map.getSize().getHeight(),
aheinecke@5794:                 (int) map.getSize().getWidth(),
aheinecke@5794:                 pixel.x(), pixel.y(),
aheinecke@5818:                 new AsyncCallback<FeatureInfoResponse>() {
aheinecke@5794:                     @Override
aheinecke@5794:                     public void onFailure(Throwable e) {
aheinecke@5794:                         SC.warn(MSG.getString(e.getMessage()));
aheinecke@5794:                     }
aheinecke@5794: 
aheinecke@5794:                     @Override
aheinecke@5818:                     public void onSuccess(FeatureInfoResponse response) {
aheinecke@5818:                         List<FeatureInfo> features = response.getFeatures();
aheinecke@5818:                         if (features != null && !features.isEmpty()) {
aheinecke@5813:                             newGetFeatureInfoWindow(features, at.getAttr("description"));
aheinecke@5818:                         } else if (response.getFeatureInfoHTML() != null) {
aheinecke@5818:                             newGetFeatureInfoWindow(response.getFeatureInfoHTML(),
aheinecke@5818:                                 at.getAttr("description"));
aheinecke@5818:                         } else {
aheinecke@5818:                             GWT.log("GetFeatureInfo returned neither a list of features nor a string");
aheinecke@5818:                         }
aheinecke@5794:                     }
aheinecke@5794:                 }
aheinecke@5794:             );
aheinecke@5794:             break; // More intelligent handling when more then one is selected
aheinecke@5794:         }
ingo@1400:     }
ingo@1400: }