teichmann@5835: package org.dive4elements.river.client.client.ui.map;
ingo@1406: 
ingo@1412: import java.util.ArrayList;
ingo@1412: import java.util.List;
raimund@2455: import java.util.Map;
raimund@2455: import java.util.LinkedHashMap;
ingo@1412: 
ingo@1408: import com.google.gwt.core.client.GWT;
ingo@1408: import com.google.gwt.user.client.rpc.AsyncCallback;
ingo@1406: 
ingo@1406: import com.smartgwt.client.util.SC;
ingo@1406: import com.smartgwt.client.widgets.Button;
ingo@1406: import com.smartgwt.client.widgets.Canvas;
ingo@1406: import com.smartgwt.client.widgets.Window;
raimund@2455: import com.smartgwt.client.widgets.form.DynamicForm;
raimund@2455: import com.smartgwt.client.widgets.form.fields.ComboBoxItem;
ingo@1406: import com.smartgwt.client.widgets.events.ClickEvent;
ingo@1406: import com.smartgwt.client.widgets.events.ClickHandler;
ingo@1412: import com.smartgwt.client.widgets.grid.ListGridRecord;
ingo@1406: import com.smartgwt.client.widgets.layout.HLayout;
ingo@1406: import com.smartgwt.client.widgets.layout.Layout;
ingo@1406: import com.smartgwt.client.widgets.layout.VLayout;
ingo@1406: 
teichmann@5835: import org.dive4elements.river.client.shared.model.Capabilities;
teichmann@5835: import org.dive4elements.river.client.shared.model.WMSLayer;
teichmann@5835: import org.dive4elements.river.client.client.FLYSConstants;
teichmann@5835: import org.dive4elements.river.client.client.services.GCService;
teichmann@5835: import org.dive4elements.river.client.client.services.GCServiceAsync;
teichmann@5835: import org.dive4elements.river.client.client.services.MapUrlService;
teichmann@5835: import org.dive4elements.river.client.client.services.MapUrlServiceAsync;
ingo@1408: 
ingo@1406: 
ingo@1406: public class ExternalWMSWindow extends Window {
ingo@1406: 
ingo@1412:     public interface LayerLoader {
ingo@1412:         void load(List<WMSLayer> toLoad);
ingo@1412:     } // end of interface WMSLayerLoader
ingo@1412: 
ingo@1412: 
ingo@1408:     protected GCServiceAsync gcService = GWT.create(GCService.class);
raimund@2455:     protected MapUrlServiceAsync muService = GWT.create(MapUrlService.class);
ingo@1408:     protected FLYSConstants  MSG       = GWT.create(FLYSConstants.class);
ingo@1408: 
ingo@1406:     protected Layout inputPanel;
ingo@1406:     protected Layout infoPanel;
ingo@1406:     protected Layout layersPanel;
ingo@1406: 
ingo@1408:     protected Capabilities capabilites;
ingo@1408: 
ingo@1418:     protected String srs;
ingo@1418: 
raimund@2455:     protected LinkedHashMap<String, String> urls;
ingo@1406:     protected String url;
ingo@1406: 
ingo@1412:     protected LayerLoader loader;
ingo@1406: 
ingo@1412: 
ingo@1412:     public ExternalWMSWindow(LayerLoader loader) {
ingo@1406:         super();
raimund@2455:         this.urls = new LinkedHashMap<String, String>();
ingo@1412:         this.loader = loader;
ingo@1406:     }
ingo@1406: 
ingo@1406: 
ingo@1418:     public ExternalWMSWindow(LayerLoader loader, String srs) {
ingo@1418:         this(loader);
ingo@1418:         this.srs = srs;
ingo@1418:     }
ingo@1418: 
ingo@1418: 
ingo@1406:     protected void setUrl(String url) {
ingo@1406:         this.url = url;
ingo@1406:     }
ingo@1406: 
ingo@1406: 
ingo@1406:     protected String getUrl() {
ingo@1406:         return url;
ingo@1406:     }
ingo@1406: 
ingo@1406: 
ingo@1408:     protected String getCapabilitiesUrl() {
ingo@1408:         String cUrl = url;
ingo@1408: 
ingo@1408:         if (url.indexOf("?") >= 0) {
ingo@1408:             cUrl += "&SERVICE=WMS&REQUEST=GetCapabilities";
ingo@1408:         }
ingo@1408:         else {
ingo@1408:             cUrl += "?SERVICE=WMS&REQUEST=GetCapabilities";
ingo@1408:         }
ingo@1408: 
ingo@1408:         return cUrl;
ingo@1408:     }
ingo@1408: 
ingo@1408: 
ingo@1408:     protected void setCapabilites(Capabilities capabilites) {
ingo@1408:         this.capabilites = capabilites;
ingo@1408:     }
ingo@1408: 
ingo@1408: 
ingo@1406:     public void start() {
ingo@1406:         show();
ingo@1406:         centerInPage();
ingo@1406: 
ingo@1406:         goToInputPanel();
ingo@1406:     }
ingo@1406: 
ingo@1406: 
ingo@1406:     protected void goToInputPanel() {
ingo@1406:         clearItems();
ingo@1406: 
ingo@1406:         inputPanel = createInputPanel();
ingo@1406: 
ingo@1406:         addItem(inputPanel);
ingo@1406: 
ingo@1406:         setWidth(380);
ingo@1406:         setHeight(140);
ingo@1406:     }
ingo@1406: 
ingo@1406: 
ingo@1406:     protected void goToInfoPanel() {
ingo@1406:         clearItems();
ingo@1406: 
ingo@1406:         infoPanel = createInfoPanel();
ingo@1406: 
ingo@1406:         addItem(infoPanel);
ingo@1406: 
ingo@1406:         setWidth(500);
ingo@1406:         setHeight(500);
ingo@1409: 
ingo@1409:         centerInPage();
ingo@1406:     }
ingo@1406: 
ingo@1406: 
ingo@1406:     protected void goToLayersPanel() {
ingo@1406:         clearItems();
ingo@1406: 
ingo@1406:         layersPanel = createLayersPanel();
ingo@1406: 
ingo@1406:         addItem(layersPanel);
ingo@1406: 
ingo@1406:         setWidth(500);
ingo@1406:         setHeight(500);
ingo@1406:     }
ingo@1406: 
ingo@1406: 
ingo@1406:     protected void clearItems() {
ingo@1406:         Canvas[] items = getItems();
ingo@1406: 
ingo@1406:         if (items != null) {
ingo@1406:             for (Canvas item: items) {
ingo@1406:                 removeItem(item);
ingo@1406:             }
ingo@1406:         }
ingo@1406:     }
ingo@1406: 
ingo@1406: 
raimund@2455:     protected void setUrls(Map<String, String> urls) {
raimund@2455:         this.urls.putAll(urls);
raimund@2455:     }
raimund@2455: 
raimund@2455:     protected void readUrls() {
raimund@2455:     }
raimund@2455: 
raimund@2455: 
ingo@1406:     protected Layout createInputPanel() {
ingo@1410:         setTitle(MSG.addwmsInputTitle());
ingo@1406: 
raimund@2455:         readUrls();
raimund@2455: 
raimund@2455:         DynamicForm form = new DynamicForm();
raimund@2455:         final ComboBoxItem url = new ComboBoxItem("Url:");
raimund@2455:         url.setRedrawOnChange(true);
raimund@2455:         muService.getUrls(new AsyncCallback<Map<String, String> >() {
raimund@2455:             public void onFailure(Throwable caught) {
raimund@2455:                 GWT.log("Error reading WMS-Services" + caught.getMessage());
raimund@2455:             }
raimund@2455:             public void onSuccess(Map<String, String> wms) {
raimund@2455:                 urls.putAll(wms);
raimund@2455:                 url.setValueMap(urls);
raimund@2455: 
raimund@2455:             }
raimund@2455:         });
ingo@1406: 
ingo@1406:         String oldUrl = getUrl();
ingo@1406:         if (oldUrl != null && oldUrl.length() > 0) {
ingo@1406:             url.setValue(oldUrl);
ingo@1406:         }
ingo@1406: 
ingo@1406:         ClickHandler goHandler = new ClickHandler() {
ingo@1406:             @Override
ingo@1406:             public void onClick(ClickEvent e) {
raimund@2455:                 String newUrl = url.getValue().toString();
ingo@1406: 
ingo@1406:                 if (!isUrlValid(newUrl)) {
ingo@1410:                     SC.warn(MSG.addwmsInvalidURL());
ingo@1406:                     return;
ingo@1406:                 }
ingo@1406: 
raimund@2455:                 setUrl(newUrl);
ingo@1408: 
ingo@1408:                 doCapabilitesRequest();
ingo@1406:             }
ingo@1406:         };
ingo@1406: 
ingo@1406:         ClickHandler cancelHandler = new ClickHandler() {
ingo@1406:             @Override
ingo@1406:             public void onClick(ClickEvent e) {
ingo@1406:                 quit();
ingo@1406:             }
ingo@1406:         };
ingo@1406: 
ingo@1406:         VLayout root = new VLayout();
ingo@1406:         root.setHeight(75);
ingo@1406:         root.setMargin(10);
ingo@1406:         root.setLayoutMargin(10);
ingo@1406: 
raimund@2455:         form.setFields(url);
raimund@2455:         root.addMember(form);
ingo@1406:         root.addMember(createButtonPanel(null, goHandler, cancelHandler));
ingo@1406: 
ingo@1406:         return root;
ingo@1406:     }
ingo@1406: 
ingo@1406: 
ingo@1406:     protected Layout createInfoPanel() {
ingo@1410:         setTitle(MSG.addwmsInfoTitle());
ingo@1406: 
ingo@1406:         ClickHandler backHandler = new ClickHandler() {
ingo@1406:             @Override
ingo@1406:             public void onClick(ClickEvent e) {
ingo@1406:                 goToInputPanel();
ingo@1406:             }
ingo@1406:         };
ingo@1406: 
ingo@1406:         ClickHandler goHandler = new ClickHandler() {
ingo@1406:             @Override
ingo@1406:             public void onClick(ClickEvent e) {
ingo@1406:                 goToLayersPanel();
ingo@1406:             }
ingo@1406:         };
ingo@1406: 
ingo@1406:         ClickHandler cancelHandler = new ClickHandler() {
ingo@1406:             @Override
ingo@1406:             public void onClick(ClickEvent e) {
ingo@1406:                 quit();
ingo@1406:             }
ingo@1406:         };
ingo@1406: 
ingo@1408:         VLayout root  = new VLayout();
ingo@1408:         VLayout panel = new CapabilitiesPanel(capabilites);
ingo@1406: 
ingo@1408:         root.setLayoutMargin(10);
ingo@1408:         panel.setHeight(420);
ingo@1406: 
ingo@1408:         root.addMember(panel);
ingo@1406:         root.addMember(createButtonPanel(backHandler, goHandler, cancelHandler));
ingo@1406: 
ingo@1406:         return root;
ingo@1406:     }
ingo@1406: 
ingo@1406: 
ingo@1406:     protected Layout createLayersPanel() {
ingo@1410:         setTitle(MSG.addwmsLayerTitle());
ingo@1406: 
ingo@1418:         final WMSLayersTree tree = new WMSLayersTree(capabilites, srs);
ingo@1412: 
ingo@1406:         ClickHandler backHandler = new ClickHandler() {
ingo@1406:             @Override
ingo@1406:             public void onClick(ClickEvent e) {
ingo@1406:                 goToInfoPanel();
ingo@1406:             }
ingo@1406:         };
ingo@1406: 
ingo@1406:         ClickHandler goHandler = new ClickHandler() {
ingo@1406:             @Override
ingo@1406:             public void onClick(ClickEvent e) {
ingo@1412:                 ListGridRecord[] selection = tree.getSelectedRecords();
ingo@1412: 
ingo@1412:                 if (selection == null || selection.length == 0) {
ingo@1412:                     return;
ingo@1412:                 }
ingo@1412: 
ingo@1412:                 List<WMSLayer> toLoad = new ArrayList<WMSLayer>();
ingo@1412: 
ingo@1412:                 for (ListGridRecord record: selection) {
ingo@1412:                     toLoad.add(
ingo@1412:                         ((WMSLayersTree.WMSLayerNode) record).getWMSLayer());
ingo@1412: 
ingo@1412:                 }
ingo@1412: 
ingo@1412:                 finish(toLoad);
ingo@1406:             }
ingo@1406:         };
ingo@1406: 
ingo@1406:         ClickHandler cancelHandler = new ClickHandler() {
ingo@1406:             @Override
ingo@1406:             public void onClick(ClickEvent e) {
ingo@1406:                 quit();
ingo@1406:             }
ingo@1406:         };
ingo@1406: 
ingo@1412:         VLayout root = new VLayout();
ingo@1406: 
ingo@1411:         root.setLayoutMargin(10);
ingo@1411:         tree.setHeight(420);
ingo@1406: 
ingo@1411:         root.addMember(tree);
ingo@1406:         root.addMember(createButtonPanel(backHandler, goHandler, cancelHandler));
ingo@1406: 
ingo@1406:         return root;
ingo@1406:     }
ingo@1406: 
ingo@1406: 
ingo@1406:     /**
ingo@1406:      * @param back
ingo@1406:      * @param ok
ingo@1406:      * @param cancel
ingo@1406:      *
ingo@1406:      * @return
ingo@1406:      */
ingo@1406:     protected Layout createButtonPanel(
ingo@1406:         ClickHandler backHandler,
ingo@1406:         ClickHandler goHandler,
ingo@1406:         ClickHandler cancelHandler
ingo@1406:     ) {
ingo@1420:         Button back   = new Button(MSG.addwmsBack());
ingo@1420:         Button go     = new Button(MSG.addwmsContinue());
ingo@1420:         Button cancel = new Button(MSG.addwmsCancel());
ingo@1406: 
ingo@1406:         if (backHandler != null) {
ingo@1406:             back.addClickHandler(backHandler);
ingo@1406:         }
ingo@1406:         else {
ingo@1406:             back.setDisabled(true);
ingo@1406:         }
ingo@1406: 
ingo@1406:         if (goHandler != null) {
ingo@1406:             go.addClickHandler(goHandler);
ingo@1406:         }
ingo@1406:         else {
ingo@1406:             go.setDisabled(true);
ingo@1406:         }
ingo@1406: 
ingo@1406:         if (cancelHandler != null) {
ingo@1406:             cancel.addClickHandler(cancelHandler);
ingo@1406:         }
ingo@1406:         else {
ingo@1406:             cancel.setDisabled(true);
ingo@1406:         }
ingo@1406: 
ingo@1406:         HLayout buttonPanel = new HLayout();
ingo@1406:         buttonPanel.setHeight(25);
ingo@1406:         buttonPanel.setMembersMargin(15);
ingo@1406:         buttonPanel.setLayoutTopMargin(10);
ingo@1406:         buttonPanel.addMember(back);
ingo@1406:         buttonPanel.addMember(go);
ingo@1406:         buttonPanel.addMember(cancel);
ingo@1406: 
ingo@1406:         return buttonPanel;
ingo@1406:     }
ingo@1406: 
ingo@1406: 
ingo@1406:     protected boolean isUrlValid(String url) {
ingo@1406:         // TODO Improve URL validation
ingo@1406:         return !(url == null || url.length() == 0);
ingo@1406:     }
ingo@1406: 
ingo@1406: 
ingo@1412:     protected void finish(List<WMSLayer> toLoad) {
ingo@1412:         loader.load(toLoad);
ingo@1412: 
ingo@1412:         quit();
ingo@1412:     }
ingo@1412: 
ingo@1412: 
ingo@1406:     protected void quit() {
ingo@1406:         destroy();
ingo@1406:     }
ingo@1408: 
ingo@1408: 
ingo@1408:     protected void doCapabilitesRequest() {
ingo@1408:         gcService.query(getCapabilitiesUrl(),new AsyncCallback<Capabilities>() {
ingo@1408:             public void onFailure(Throwable e) {
ingo@1408:                 SC.warn(MSG.getString(e.getMessage()));
ingo@1408:             }
ingo@1408: 
ingo@1408:             public void onSuccess(Capabilities capabilites) {
ingo@1408:                 setCapabilites(capabilites);
ingo@1408:                 goToInfoPanel();
ingo@1408:             }
ingo@1408:         });
ingo@1408:     }
ingo@1406: }
ingo@1406: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :