2 * Copyright (C) 2014 EDIT
3 * European Distributed Institute of Taxonomy
4 * http://www.e-taxonomy.eu
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.
9 package eu
.etaxonomy
.taxeditor
.editor
.view
.derivate
;
11 import org
.eclipse
.core
.runtime
.Status
;
12 import org
.eclipse
.jface
.util
.LocalSelectionTransfer
;
13 import org
.eclipse
.jface
.viewers
.TreeNode
;
14 import org
.eclipse
.swt
.dnd
.DND
;
15 import org
.eclipse
.swt
.dnd
.DropTargetEvent
;
16 import org
.eclipse
.swt
.dnd
.TransferData
;
18 import eu
.etaxonomy
.taxeditor
.editor
.EditorUtil
;
19 import eu
.etaxonomy
.taxeditor
.editor
.l10n
.Messages
;
20 import eu
.etaxonomy
.taxeditor
.editor
.view
.derivate
.operation
.MoveDerivateOperation
;
21 import eu
.etaxonomy
.taxeditor
.model
.AbstractUtility
;
22 import eu
.etaxonomy
.taxeditor
.model
.MessagingUtils
;
23 import eu
.etaxonomy
.taxeditor
.ui
.EditViewerDropAdapter
;
30 public class DerivateDropListener
extends EditViewerDropAdapter
{
32 private final DerivateView derivateView
;
34 protected DerivateDropListener(DerivateView derivateView
) {
35 super(derivateView
.getViewer());
36 this.derivateView
= derivateView
;
40 public boolean performDrop(Object data
) {
41 if(derivateView
.isDirty()){
42 MessagingUtils
.warningDialog(DerivateView
.VIEW_HAS_UNSAVED_CHANGES
, this, DerivateView
.YOU_NEED_TO_SAVE_BEFORE_PERFORMING_THIS_ACTION
);
45 Object target
= getCurrentTarget();
46 if(target
instanceof TreeNode
&& data
instanceof DerivateViewSelection
){
47 DerivateViewSelection derivateViewSelection
= (DerivateViewSelection
)data
;
48 TreeNode targetNode
= (TreeNode
) target
;
49 TreeNode draggedNode
= EditorUtil
.getTreeNodeOfSelection(derivateViewSelection
.getSelection());
50 if(draggedNode
!=null){
51 MoveDerivateOperation moveDerivateOperation
= new MoveDerivateOperation(String
.format(Messages
.DerivateDropListener_MOVE_TO
, derivateView
.getLabelProvider().getDerivateText(draggedNode
), derivateView
.getLabelProvider().getDerivateText(targetNode
)), EditorUtil
.getUndoContext(), derivateView
, draggedNode
, targetNode
);
52 return AbstractUtility
.executeOperation(moveDerivateOperation
, sync
).equals(Status
.OK_STATUS
)?
true:false;
59 public boolean validateDrop(Object target
, int operation
, TransferData transferType
) {
60 return LocalSelectionTransfer
.getTransfer().isSupportedType(transferType
) && target
instanceof TreeNode
;
67 public void dragOver(DropTargetEvent event
) {
68 super.dragOver(event
);
69 event
.feedback
= DND
.FEEDBACK_SELECT
| DND
.FEEDBACK_SCROLL
;