eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/descriptive/DescriptionElementDropAdapter.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.editor.view.descriptive;
  10
  11 import java.util.ArrayList;
  12 import java.util.Collection;
  13
  14 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  15 import org.eclipse.jface.viewers.Viewer;
  16 import org.eclipse.swt.dnd.DND;
  17 import org.eclipse.swt.dnd.TransferData;
  18
  19 import eu.etaxonomy.cdm.model.description.DescriptionBase;
  20 import eu.etaxonomy.cdm.model.description.DescriptionElementBase;
  21 import eu.etaxonomy.cdm.model.description.IndividualsAssociation;
  22 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  23 import eu.etaxonomy.taxeditor.editor.l10n.Messages;
  24 import eu.etaxonomy.taxeditor.editor.name.e4.TaxonEditor;
  25 import eu.etaxonomy.taxeditor.editor.view.descriptive.e4.FactualDataPartE4;
  26 import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.MoveDescriptionElementsOperation;
  27 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  28 import eu.etaxonomy.taxeditor.operation.AbstractPostTaxonOperation;
  29 import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
  30 import eu.etaxonomy.taxeditor.ui.EditViewerDropAdapter;
  31
  32 /**
  33  * @author n.hoffmann
  34  * @created Feb 8, 2011
  35  */
  36 public class DescriptionElementDropAdapter extends EditViewerDropAdapter {
  37
  38     private static final String OPERATION_NOT_SUPPORTED_YET = Messages.DescriptionElementDropAdapter_NOT_SUPPORTED;
  39
  40         public DescriptionElementDropAdapter(Viewer viewer) {
  41                 super(viewer);
  42         }
  43
  44         @Override
  45         public boolean performDrop(Object data) {
  46                 DescriptionBase target = (DescriptionBase) getCurrentTarget();
  47                 Object[] droppedElements = (Object[]) data;
  48
  49                 Collection<DescriptionElementBase> descriptionElements = new ArrayList<DescriptionElementBase>();
  50
  51                 boolean isCopy = getCurrentOperation() == DND.DROP_COPY ? true : false;
  52                 DescriptionBase<?> description = null;
  53                 boolean containsSpecimen = false;
  54                 // cannot drop a feature node onto itself
  55                 if (droppedElements != null){
  56                         for (Object droppedElement : droppedElements) {
  57                                 if (droppedElement == null){
  58                                         MessagingUtils.warningDialog(OPERATION_NOT_SUPPORTED_YET, this, Messages.DescriptionElementDropAdapter_NOT_SUPPORTED_NEW_ELEMENT);
  59                                         return false;
  60                                 }
  61                                 if(! (droppedElement instanceof DescriptionElementBase)){
  62                                         return false;
  63                                 }else{
  64                                         DescriptionElementBase descriptionElement = (DescriptionElementBase) droppedElement;
  65
  66                                         if (descriptionElement.getInDescription().equals(target)) {
  67                                                 return false;
  68                                         }
  69                                         for (Object element : target.getElements()){
  70                                             if (element instanceof DescriptionElementBase){
  71                                                if( !((DescriptionElementBase)element).isPersisted()){
  72                                                    MessagingUtils.warningDialog(OPERATION_NOT_SUPPORTED_YET, this, Messages.DescriptionElementDropAdapter_NOT_SUPPORTED_NEW_ELEMENT_IN_DESCRIPTION);
  73                                             return false;
  74                                                }
  75
  76                                             }
  77                                         }
  78                                         for (Object element : descriptionElement.getInDescription().getElements()){
  79                         if (element instanceof DescriptionElementBase){
  80                            if( !((DescriptionElementBase)element).isPersisted()){
  81                                MessagingUtils.warningDialog(OPERATION_NOT_SUPPORTED_YET, this, Messages.DescriptionElementDropAdapter_NOT_SUPPORTED_NEW_ELEMENT_IN_DESCRIPTION);
  82                                 return false;
  83                            }
  84
  85                         }
  86                     }
  87                                         description = descriptionElement.getInDescription();
  88                                         description.removeElement(descriptionElement);
  89                                         target.addElement(descriptionElement);
  90                                         if (descriptionElement instanceof IndividualsAssociation && PreferencesUtil.getBooleanValue("AskForNewCurrentDetermination")) {
  91                                             if (((IndividualsAssociation)descriptionElement).getAssociatedSpecimenOrObservation() != null && !((IndividualsAssociation)descriptionElement).getAssociatedSpecimenOrObservation().getDeterminations().isEmpty()) {
  92                             containsSpecimen = true;
  93                         }
  94                                         }
  95                                         descriptionElements.add(descriptionElement);
  96                                 }
  97                         }
  98                         TaxonEditor editor = null;
  99                         Object activePart = EditorUtil.getActivePart();
 100                         if (activePart instanceof FactualDataPartE4){
 101                             MPart selectionProvidingPart =((FactualDataPartE4)activePart).getSelectionProvidingPart();
 102                             Object obj = selectionProvidingPart.getObject();
 103                             if (obj instanceof TaxonEditor){
 104                                 editor = (TaxonEditor) obj;
 105                             }
 106                         }
 107
 108
 109                         AbstractPostTaxonOperation operation = new MoveDescriptionElementsOperation(Messages.DescriptionElementDropAdapter_MOVE_DESC, EditorUtil.getUndoContext(), target, description, descriptionElements, isCopy, null, sync, false, containsSpecimen);
 110
 111                         editor.getEditorInput().addOperation(operation);
 112                         editor.setDirty();
 113 //                      EditorUtil.executeOperation(operation, sync);
 114                         return true;
 115                 }
 116                 MessagingUtils.warningDialog(OPERATION_NOT_SUPPORTED_YET, this, Messages.DescriptionElementDropAdapter_NOT_SUPPORTED_EMPTY_ELEMENT);
 117
 118                 return false;
 119
 120         }
 121
 122         @Override
 123         public boolean validateDrop(Object target, int operation,
 124                         TransferData transferData) {
 125                 boolean transferDataIsSupported = true;
 126                 if (target instanceof DescriptionBase){
 127                         if((((DescriptionBase)target).isComputed() || ((DescriptionBase)target).isCloneForSource())&& PreferencesUtil.isComputedDesciptionHandlingDisabled()){
 128                                 transferDataIsSupported = false;
 129                         }
 130                 }
 131                 transferDataIsSupported = DescriptionElementTransfer.getInstance().isSupportedType(
 132                                 transferData) && transferDataIsSupported;
 133                 return target instanceof DescriptionBase && transferDataIsSupported;
 134         }
 135 }