bundles/org.simantics.views.swt.client/src/org/simantics/views/swt/client/impl/SWTBrowser.java

   1 package org.simantics.views.swt.client.impl;\r
   2 \r
   3 import org.eclipse.jface.layout.GridDataFactory;\r
   4 import org.eclipse.jface.layout.GridLayoutFactory;\r
   5 import org.eclipse.swt.browser.Browser;\r
   6 import org.eclipse.swt.browser.LocationEvent;\r
   7 import org.eclipse.swt.browser.LocationListener;\r
   8 import org.eclipse.swt.widgets.Composite;\r
   9 import org.simantics.db.layer0.variable.Variable;\r
  10 import org.simantics.scl.runtime.function.Function1;\r
  11 import org.simantics.utils.datastructures.map.Tuple;\r
  12 import org.simantics.views.swt.client.base.SingleSWTViewNode;\r
  13 \r
  14 public class SWTBrowser extends SingleSWTViewNode<Browser> {\r
  15         \r
  16         private static final long serialVersionUID = -2704760050046054447L;\r
  17         \r
  18         public String                     document;\r
  19         public Variable                   variable;\r
  20         public Function1<Object, Boolean> locationChanging;\r
  21 \r
  22         private Tuple                     lastAppliedParametrization;\r
  23 \r
  24         @Override\r
  25         public void reset() {\r
  26                 super.reset();\r
  27                 lastAppliedParametrization = null;\r
  28         }\r
  29         \r
  30         @Override\r
  31         public void createControls(Composite parent) {\r
  32 \r
  33                 GridDataFactory.fillDefaults().grab(true, true).applyTo(parent);\r
  34                 GridLayoutFactory.fillDefaults().applyTo(parent);\r
  35 \r
  36                 control = new Browser(parent, style);\r
  37                 GridDataFactory.fillDefaults().grab(true, true).applyTo(control);\r
  38 \r
  39                 control.addLocationListener(new LocationListener() {\r
  40                         @Override\r
  41                         public void changing(LocationEvent event) {\r
  42                                 Function1<Object, Boolean> lc = locationChanging;\r
  43                                 if (lc != null)\r
  44                                         lc.apply(event);\r
  45                         }\r
  46                         @Override\r
  47                         public void changed(LocationEvent event) {\r
  48                         }\r
  49                 });\r
  50 \r
  51                 setProperties();\r
  52 \r
  53         }\r
  54 \r
  55         public void synchronizeVariable(Variable variable) {\r
  56                 \r
  57         }\r
  58 \r
  59         public void synchronizeDocument(final String document) {\r
  60                 \r
  61                 if(document != null) {\r
  62                         \r
  63                         final Variable variable = SWTBrowser.this.variable;\r
  64                         if (variable == null) {\r
  65                                 return;\r
  66                         }\r
  67 \r
  68                         Tuple checkParam = new Tuple(document, variable);\r
  69                         if (checkParam.equals(lastAppliedParametrization))\r
  70                                 return;\r
  71                         \r
  72                         lastAppliedParametrization = checkParam;\r
  73                                 \r
  74                         final Browser control = this.control;\r
  75                         if (control == null)\r
  76                                 return;\r
  77                         control.setText(document);\r
  78                         \r
  79                 }\r
  80         }\r
  81 \r
  82 }\r