eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/dnd/CdmAuthorityTableDropTargetListener.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9 package eu.etaxonomy.taxeditor.dnd;
  10
  11 import org.eclipse.swt.dnd.DropTargetEvent;
  12 import org.eclipse.swt.dnd.DropTargetListener;
  13
  14 import eu.etaxonomy.cdm.model.common.CdmBase;
  15 import eu.etaxonomy.taxeditor.dnd.transfer.TaxonNodeTransfer;
  16 import eu.etaxonomy.taxeditor.ui.group.grantedauthority.CdmAuthorityComposite;
  17 import eu.etaxonomy.taxeditor.ui.group.grantedauthority.CdmAuthorityCompositeViewer;
  18
  19 /**
  20  * Drop listener for the {@link CdmAuthorityComposite}.
  21  *
  22  * @author cmathew
  23  * @created Mar 28, 2013
  24  *
  25  */
  26 public class CdmAuthorityTableDropTargetListener implements DropTargetListener {
  27
  28         private CdmAuthorityCompositeViewer viewer;
  29
  30
  31         public CdmAuthorityTableDropTargetListener(CdmAuthorityCompositeViewer viewer) {
  32                 this.viewer = viewer;
  33         }
  34
  35         @Override
  36         public void dragEnter(DropTargetEvent event) {
  37         }
  38
  39         @Override
  40         public void dragLeave(DropTargetEvent arg0) {
  41         }
  42
  43         @Override
  44         public void dragOperationChanged(DropTargetEvent arg0) {
  45         }
  46
  47         @Override
  48         public void dragOver(DropTargetEvent arg0) {
  49         }
  50
  51         @Override
  52         public void drop(DropTargetEvent dtevent) {
  53                 if(TaxonNodeTransfer.getInstance().isSupportedType(dtevent.currentDataType)) {
  54                         Object[] selectedCdmBases = (Object[])dtevent.data;
  55
  56                         for (Object cdmBase : selectedCdmBases){
  57                                 if(CdmBase.class.isAssignableFrom(cdmBase.getClass()) ) {
  58                                         viewer.addCdmAuthority((CdmBase)cdmBase);
  59                                 }
  60                         }
  61                 }
  62         }
  63
  64         @Override
  65         public void dropAccept(DropTargetEvent arg0) {
  66         }
  67
  68 }