swt/org.argeo.app.geo.swt/src/org/argeo/app/geo/swt/openlayers/OLMap.java

   1 package org.argeo.app.geo.swt.openlayers;
   2
   3 import java.util.concurrent.CompletableFuture;
   4
   5 import org.argeo.app.geo.ux.MapPart;
   6 import org.argeo.cms.swt.CmsSwtUtils;
   7 import org.eclipse.swt.SWT;
   8 import org.eclipse.swt.browser.Browser;
   9 import org.eclipse.swt.browser.ProgressEvent;
  10 import org.eclipse.swt.browser.ProgressListener;
  11 import org.eclipse.swt.layout.GridData;
  12 import org.eclipse.swt.widgets.Composite;
  13
  14 public class OLMap extends Composite implements MapPart {
  15         static final long serialVersionUID = 2713128477504858552L;
  16         private Browser browser;
  17
  18         // private CompletableFuture<Boolean> renderCompleted = new
  19         // CompletableFuture<>();
  20         private CompletableFuture<Boolean> pageLoaded = new CompletableFuture<>();
  21
  22         private String mapVar = "window.argeoMap";
  23
  24         public OLMap(Composite parent, int style) {
  25                 super(parent, style);
  26                 parent.setLayout(CmsSwtUtils.noSpaceGridLayout());
  27                 setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  28                 setLayout(CmsSwtUtils.noSpaceGridLayout());
  29                 browser = new Browser(this, SWT.BORDER);
  30                 browser.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  31                 // functions exposed to JavaScript
  32 //              new onRenderComplete();
  33                 browser.setUrl("/pkg/org.argeo.app.geo.js/index.html");
  34                 browser.addProgressListener(new ProgressListener() {
  35                         static final long serialVersionUID = 1L;
  36
  37                         @Override
  38                         public void completed(ProgressEvent event) {
  39
  40                                 // create map
  41                                 browser.execute(mapVar + " = Object.create(window.argeo.app.geo.ArgeoMap);");
  42                                 pageLoaded.complete(true);
  43                         }
  44
  45                         @Override
  46                         public void changed(ProgressEvent event) {
  47                         }
  48                 });
  49         }
  50
  51         @Override
  52         public void addPoint(Double lng, Double lat) {
  53                 // TODO Auto-generated method stub
  54
  55         }
  56
  57         @Override
  58         public void addUrlLayer(String layer, Format format) {
  59                 // TODO Auto-generated method stub
  60
  61         }
  62
  63         @Override
  64         public void setZoom(int zoom) {
  65                 pageLoaded.thenAccept((b) -> {
  66                         browser.evaluate(mapVar + ".setZoom(" + zoom + ")");
  67                 });
  68         }
  69
  70         @Override
  71         public void setCenter(Double lng, Double lat) {
  72                 pageLoaded.thenAccept((b) -> {
  73                         browser.evaluate(mapVar + ".setCenter(" + lng + ", " + lat + ")");
  74                 });
  75
  76         }
  77
  78 //      private void setRenderCompleted() {
  79 //              renderCompleted.complete(true);
  80 //      }
  81 //
  82 //      private class onRenderComplete extends BrowserFunction {
  83 //
  84 //              onRenderComplete() {
  85 //                      super(browser, onRenderComplete.class.getSimpleName());
  86 //              }
  87 //
  88 //              @Override
  89 //              public Object function(Object[] arguments) {
  90 //                      setRenderCompleted();
  91 //                      System.out.println("Render complete (Java)");
  92 //                      return null;
  93 //              }
  94 //
  95 //      }
  96 }