eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/descriptiveDataSet/character/CharacterDropAdapter.java

   1 /**
   2 * Copyright (C) 2009 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.descriptiveDataSet.character;
  10
  11 import org.eclipse.e4.ui.di.UISynchronize;
  12 import org.eclipse.jface.viewers.Viewer;
  13 import org.eclipse.swt.dnd.DropTargetEvent;
  14 import org.eclipse.swt.dnd.TransferData;
  15
  16 import eu.etaxonomy.cdm.api.service.ITermNodeService;
  17 import eu.etaxonomy.cdm.model.description.Character;
  18 import eu.etaxonomy.cdm.model.term.TermTree;
  19 import eu.etaxonomy.cdm.persistence.dto.TermNodeDto;
  20 import eu.etaxonomy.cdm.persistence.dto.TermTreeDto;
  21 import eu.etaxonomy.taxeditor.featuretree.CharacterTransfer;
  22 import eu.etaxonomy.taxeditor.featuretree.e4.TermTreeDtoDropAdapter;
  23 import eu.etaxonomy.taxeditor.store.CdmStore;
  24 import eu.etaxonomy.taxeditor.store.StoreUtil;
  25
  26 /**
  27  *
  28  * @author pplitzner
  29  * @date Jun 1, 2017
  30  *
  31  */
  32 public class CharacterDropAdapter extends TermTreeDtoDropAdapter {
  33
  34         private CharacterEditor characterEditor;
  35
  36     protected CharacterDropAdapter(CharacterEditor characterEditor, Viewer viewer, UISynchronize sync) {
  37             super(characterEditor, viewer, sync);
  38             this.characterEditor = characterEditor;
  39         }
  40
  41         @Override
  42         protected Object determineTarget(DropTargetEvent event) {
  43         return event.item == null ? ((TermTree)getViewer().getInput()).getRoot() : event.item.getData();
  44         }
  45
  46         @Override
  47         public boolean performDrop(Object data) {
  48             if(!CharacterTransfer.getInstance().isSupportedType(getCurrentEvent().currentDataType)){
  49                 return super.performDrop(data);
  50             }
  51             if(StoreUtil.promptCheckIsDirty(editor)){
  52                 return false;
  53             }
  54             if(!characterEditor.isVocabularySet()){
  55                 return false;
  56             }
  57             TermNodeDto target = (TermNodeDto) getCurrentTarget();
  58             if(data instanceof Object[]){
  59                 Object[] transferObjects = (Object[])data;
  60                 for(int i=0;i<transferObjects.length;i++){
  61                     Object object = transferObjects[i];
  62                     if(object instanceof Character){
  63                         Character character = (Character)object;
  64                         if(target==null){
  65                         //drop on feature tree
  66                         target = ((TermTreeDto)getViewer().getInput()).getRoot();
  67                     }
  68                     CdmStore.getService(ITermNodeService.class).createChildNode(target.getUuid(), character, characterEditor.getVocabulary().getUuid());
  69                     }
  70                 }
  71                 getViewer().refresh();
  72                 return true;
  73             }
  74             return false;
  75         }
  76
  77         @Override
  78         public boolean validateDrop(Object target, int operation,
  79                         TransferData transferData) {
  80                 if(CharacterTransfer.getInstance().isSupportedType(transferData)){
  81                     return true;
  82                 }
  83                 return super.validateDrop(target, operation, transferData);
  84         }
  85
  86 }