3 * Copyright (C) 2014 EDIT
4 * European Distributed Institute of Taxonomy
5 * http://www.e-taxonomy.eu
7 * The contents of this file are subject to the Mozilla Public License Version 1.1
8 * See LICENSE.TXT at the top of this package for the full license terms.
10 package eu
.etaxonomy
.taxeditor
.editor
.view
.derivate
;
12 import org
.eclipse
.core
.runtime
.Status
;
13 import org
.eclipse
.jface
.util
.LocalSelectionTransfer
;
14 import org
.eclipse
.jface
.viewers
.TreeNode
;
15 import org
.eclipse
.jface
.viewers
.ViewerDropAdapter
;
16 import org
.eclipse
.swt
.dnd
.DND
;
17 import org
.eclipse
.swt
.dnd
.DropTargetEvent
;
18 import org
.eclipse
.swt
.dnd
.TransferData
;
20 import eu
.etaxonomy
.taxeditor
.editor
.EditorUtil
;
21 import eu
.etaxonomy
.taxeditor
.editor
.Messages
;
22 import eu
.etaxonomy
.taxeditor
.editor
.view
.derivate
.operation
.MoveDerivateOperation
;
23 import eu
.etaxonomy
.taxeditor
.model
.AbstractUtility
;
24 import eu
.etaxonomy
.taxeditor
.model
.MessagingUtils
;
31 public class DerivateDropListener
extends ViewerDropAdapter
{
33 private final DerivateView derivateView
;
35 protected DerivateDropListener(DerivateView derivateView
) {
36 super(derivateView
.getViewer());
37 this.derivateView
= derivateView
;
41 public boolean performDrop(Object data
) {
42 if(derivateView
.isDirty()){
43 MessagingUtils
.warningDialog(DerivateView
.VIEW_HAS_UNSAVED_CHANGES
, this, DerivateView
.YOU_NEED_TO_SAVE_BEFORE_PERFORMING_THIS_ACTION
);
46 Object target
= getCurrentTarget();
47 if(target
instanceof TreeNode
&& data
instanceof DerivateViewSelection
){
48 DerivateViewSelection derivateViewSelection
= (DerivateViewSelection
)data
;
49 TreeNode targetNode
= (TreeNode
) target
;
50 TreeNode draggedNode
= EditorUtil
.getTreeNodeOfSelection(derivateViewSelection
.getSelection());
51 if(draggedNode
!=null){
52 MoveDerivateOperation moveDerivateOperation
= new MoveDerivateOperation(String
.format(Messages
.DerivateDropListener_MOVE_TO
, derivateView
.getLabelProvider().getDerivateText(draggedNode
), derivateView
.getLabelProvider().getDerivateText(targetNode
)), EditorUtil
.getUndoContext(), derivateView
, draggedNode
, targetNode
);
53 return AbstractUtility
.executeOperation(moveDerivateOperation
).equals(Status
.OK_STATUS
)?
true:false;
60 public boolean validateDrop(Object target
, int operation
, TransferData transferType
) {
61 return LocalSelectionTransfer
.getTransfer().isSupportedType(transferType
) && target
instanceof TreeNode
;
68 public void dragOver(DropTargetEvent event
) {
69 super.dragOver(event
);
70 event
.feedback
= DND
.FEEDBACK_SELECT
| DND
.FEEDBACK_SCROLL
;