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