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
.TransferData
;
18 import eu
.etaxonomy
.taxeditor
.editor
.EditorUtil
;
19 import eu
.etaxonomy
.taxeditor
.editor
.view
.derivate
.operation
.MoveDerivateOperation
;
20 import eu
.etaxonomy
.taxeditor
.model
.AbstractUtility
;
21 import eu
.etaxonomy
.taxeditor
.model
.MessagingUtils
;
28 public class DerivateDropListener
extends ViewerDropAdapter
{
30 private final DerivateView derivateView
;
32 protected DerivateDropListener(DerivateView derivateView
) {
33 super(derivateView
.getViewer());
34 this.derivateView
= derivateView
;
38 * @see org.eclipse.jface.viewers.ViewerDropAdapter#performDrop(java.lang.Object)
41 public boolean performDrop(Object data
) {
42 if(derivateView
.isDirty()){
43 MessagingUtils
.warningDialog("View has unsaved changes", this, "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("Moving \""+derivateView
.getLabelProvider().getDerivateText(draggedNode
)+"\" to \""+derivateView
.getLabelProvider().getDerivateText(targetNode
)+"\"", EditorUtil
.getUndoContext(), derivateView
, draggedNode
, targetNode
);
53 return AbstractUtility
.executeOperation(moveDerivateOperation
).equals(Status
.OK_STATUS
)?
true:false;
60 * @see org.eclipse.jface.viewers.ViewerDropAdapter#validateDrop(java.lang.Object, int, org.eclipse.swt.dnd.TransferData)
63 public boolean validateDrop(Object target
, int operation
, TransferData transferType
) {
64 return LocalSelectionTransfer
.getTransfer().isSupportedType(transferType
) && target
instanceof TreeNode
;