swt/org.argeo.cms.swt/src/org/argeo/cms/swt/widgets/AbstractSwtView.java

   1 package org.argeo.cms.swt.widgets;
   2
   3 import org.argeo.cms.swt.CmsSwtUtils;
   4 import org.argeo.cms.ux.widgets.DataPart;
   5 import org.argeo.cms.ux.widgets.DataView;
   6 import org.eclipse.swt.events.SelectionEvent;
   7 import org.eclipse.swt.events.SelectionListener;
   8 import org.eclipse.swt.widgets.Composite;
   9
  10 /** Base class for {@link DataView}s based on an SWT {@link Composite}. */
  11 public abstract class AbstractSwtView<INPUT, TYPE> extends Composite implements DataView<INPUT, TYPE> {
  12         private static final long serialVersionUID = -1999179054267812170L;
  13
  14         protected DataPart<INPUT, TYPE> dataPart;
  15
  16         protected final SelectionListener selectionListener;
  17
  18         @SuppressWarnings("unchecked")
  19         public AbstractSwtView(Composite parent, int style, DataPart<INPUT, TYPE> dataPart) {
  20                 super(parent, style);
  21                 setLayout(CmsSwtUtils.noSpaceGridLayout());
  22
  23                 this.dataPart = dataPart;
  24
  25                 selectionListener = new SelectionListener() {
  26
  27                         private static final long serialVersionUID = 4334785560035009330L;
  28
  29                         @Override
  30                         public void widgetSelected(SelectionEvent e) {
  31                                 if (dataPart.getOnSelected() != null)
  32                                         dataPart.getOnSelected().accept((TYPE) e.item.getData());
  33                         }
  34
  35                         @Override
  36                         public void widgetDefaultSelected(SelectionEvent e) {
  37                                 if (dataPart.getOnAction() != null)
  38                                         dataPart.getOnAction().accept((TYPE) e.item.getData());
  39                         }
  40                 };
  41
  42                 dataPart.addView(this);
  43                 addDisposeListener((e) -> dataPart.removeView(this));
  44         }
  45
  46         public abstract void refresh();
  47 }