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.SWT;
   7 import org.eclipse.swt.events.SelectionEvent;
   8 import org.eclipse.swt.events.SelectionListener;
   9 import org.eclipse.swt.widgets.Composite;
  10
  11 /** Base class for {@link DataView}s based on an SWT {@link Composite}. */
  12 public abstract class AbstractSwtView<INPUT, TYPE> extends Composite implements DataView<INPUT, TYPE> {
  13         private static final long serialVersionUID = -1999179054267812170L;
  14
  15         protected DataPart<INPUT, TYPE> dataPart;
  16
  17         protected final SelectionListener selectionListener;
  18
  19         @SuppressWarnings("unchecked")
  20         public AbstractSwtView(Composite parent, DataPart<INPUT, TYPE> dataPart) {
  21                 super(parent, SWT.NONE);
  22                 setLayout(CmsSwtUtils.noSpaceGridLayout());
  23
  24                 this.dataPart = dataPart;
  25
  26                 selectionListener = new SelectionListener() {
  27
  28                         private static final long serialVersionUID = 4334785560035009330L;
  29
  30                         @Override
  31                         public void widgetSelected(SelectionEvent e) {
  32                                 if (dataPart.getOnSelected() != null)
  33                                         dataPart.getOnSelected().accept((TYPE) e.item.getData());
  34                         }
  35
  36                         @Override
  37                         public void widgetDefaultSelected(SelectionEvent e) {
  38                                 if (dataPart.getOnAction() != null)
  39                                         dataPart.getOnAction().accept((TYPE) e.item.getData());
  40                         }
  41                 };
  42
  43                 dataPart.addView(this);
  44                 addDisposeListener((e) -> dataPart.removeView(this));
  45         }
  46
  47         public abstract void refresh();
  48 }