SwtMapPart.java

   1 package org.argeo.app.geo.swt;
   2
   3 import java.util.concurrent.CompletableFuture;
   4
   5 import org.argeo.app.geo.ux.JsImplementation;
   6 import org.argeo.app.geo.ux.MapPart;
   7 import org.argeo.cms.swt.CmsSwtUtils;
   8 import org.eclipse.swt.SWT;
   9 import org.eclipse.swt.browser.Browser;
  10 import org.eclipse.swt.browser.ProgressEvent;
  11 import org.eclipse.swt.browser.ProgressListener;
  12 import org.eclipse.swt.layout.GridData;
  13 import org.eclipse.swt.widgets.Composite;
  14
  15 public class SwtMapPart extends Composite implements MapPart {
  16         static final long serialVersionUID = 2713128477504858552L;
  17         private Browser browser;
  18
  19         // private CompletableFuture<Boolean> renderCompleted = new
  20         // CompletableFuture<>();
  21         private CompletableFuture<Boolean> pageLoaded = new CompletableFuture<>();
  22
  23         private String jsImplementation = JsImplementation.OPENLAYERS_MAP_PART.getJsClass();
  24         private String mapVar = "globalThis.argeoMap";
  25
  26         public SwtMapPart(Composite parent, int style) {
  27                 super(parent, style);
  28                 parent.setLayout(CmsSwtUtils.noSpaceGridLayout());
  29                 setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  30                 setLayout(CmsSwtUtils.noSpaceGridLayout());
  31                 browser = new Browser(this, SWT.BORDER);
  32                 browser.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  33                 // functions exposed to JavaScript
  34 //              new onRenderComplete();
  35                 browser.setUrl("/pkg/org.argeo.app.geo.js/index.html");
  36                 browser.addProgressListener(new ProgressListener() {
  37                         static final long serialVersionUID = 1L;
  38
  39                         @Override
  40                         public void completed(ProgressEvent event) {
  41
  42                                 // create map
  43                                 browser.execute(mapVar + " = new " + jsImplementation + "();");
  44
  45                                 // browser.execute("console.log(myInstance.myField)");
  46                                 pageLoaded.complete(true);
  47                         }
  48
  49                         @Override
  50                         public void changed(ProgressEvent event) {
  51                         }
  52                 });
  53         }
  54
  55         @Override
  56         public void addPoint(Double lng, Double lat) {
  57                 // TODO Auto-generated method stub
  58
  59         }
  60
  61         @Override
  62         public void addUrlLayer(String layer, Format format) {
  63                 // TODO Auto-generated method stub
  64
  65         }
  66
  67         @Override
  68         public void setZoom(int zoom) {
  69                 pageLoaded.thenAccept((b) -> {
  70                         browser.evaluate(mapVar + ".setZoom(" + zoom + ")");
  71                 });
  72         }
  73
  74         @Override
  75         public void setCenter(Double lng, Double lat) {
  76                 pageLoaded.thenAccept((b) -> {
  77                         browser.evaluate(mapVar + ".setCenter(" + lng + ", " + lat + ")");
  78                 });
  79
  80         }
  81
  82 //      private void setRenderCompleted() {
  83 //              renderCompleted.complete(true);
  84 //      }
  85 //
  86 //      private class onRenderComplete extends BrowserFunction {
  87 //
  88 //              onRenderComplete() {
  89 //                      super(browser, onRenderComplete.class.getSimpleName());
  90 //              }
  91 //
  92 //              @Override
  93 //              public Object function(Object[] arguments) {
  94 //                      setRenderCompleted();
  95 //                      System.out.println("Render complete (Java)");
  96 //                      return null;
  97 //              }
  98 //
  99 //      }
 100 }