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 java.util.Collection;
  12 import java.util.Iterator;
  13
  14 import org.eclipse.jface.viewers.IStructuredSelection;
  15 import org.eclipse.swt.dnd.DropTargetEvent;
  16 import org.eclipse.swt.dnd.DropTargetListener;
  17
  18 import eu.etaxonomy.cdm.model.common.CdmBase;
  19 import eu.etaxonomy.cdm.persistence.dto.UuidAndTitleCache;
  20 import eu.etaxonomy.taxeditor.store.CdmStore;
  21 import eu.etaxonomy.taxeditor.ui.group.grantedauthority.CdmAuthorityComposite;
  22 import eu.etaxonomy.taxeditor.ui.group.grantedauthority.CdmAuthorityCompositeViewer;
  23
  24 /**
  25  * Drop listener for the {@link CdmAuthorityComposite}.
  26  *
  27  * @author cmathew
  28  * @created Mar 28, 2013
  29  *
  30  */
  31 public class CdmAuthorityTableDropTargetListener implements DropTargetListener {
  32
  33         private CdmAuthorityCompositeViewer viewer;
  34
  35
  36         public CdmAuthorityTableDropTargetListener(CdmAuthorityCompositeViewer viewer) {
  37                 this.viewer = viewer;
  38         }
  39
  40         @Override
  41         public void dragEnter(DropTargetEvent event) {
  42         }
  43
  44         @Override
  45         public void dragLeave(DropTargetEvent arg0) {
  46         }
  47
  48         @Override
  49         public void dragOperationChanged(DropTargetEvent arg0) {
  50         }
  51
  52         @Override
  53         public void dragOver(DropTargetEvent arg0) {
  54         }
  55
  56         @Override
  57         public void drop(DropTargetEvent dtevent) {
  58             Object data = dtevent.data;
  59             if (data instanceof IStructuredSelection) {
  60                 Iterator<?> selectionIterator = ((IStructuredSelection) dtevent.data).iterator();
  61                 while (selectionIterator.hasNext()){
  62                     addAuthority(selectionIterator.next());
  63                 }
  64             }
  65             else if(data instanceof Object[]) {
  66                 for(int i=0;i<((Object[])data).length;i++){
  67                     addAuthority(((Object[])data)[i]);
  68                 }
  69             }
  70             else if(data instanceof Collection) {
  71                 ((Collection) data).forEach(d->addAuthority(d));
  72             }
  73             else{
  74                 addAuthority(data);
  75             }
  76             viewer.getControl().setFocus();
  77         }
  78
  79         private void addAuthority(Object authority){
  80             if(CdmBase.class.isAssignableFrom(authority.getClass()) ) {
  81                 viewer.addCdmAuthority((CdmBase)authority);
  82             }
  83             else if(authority instanceof UuidAndTitleCache){
  84                 UuidAndTitleCache uuidAndTitleCache = (UuidAndTitleCache) authority;
  85             CdmBase cdmBase = CdmStore.getCommonService().find(uuidAndTitleCache.getType(), uuidAndTitleCache.getUuid());
  86             viewer.addCdmAuthority(cdmBase);
  87             }
  88         }
  89
  90         @Override
  91         public void dropAccept(DropTargetEvent arg0) {
  92         }
  93
  94 }