3 * Copyright (C) 2015 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.
11 package eu
.etaxonomy
.taxeditor
.navigation
.navigator
;
13 import java
.util
.EnumSet
;
14 import java
.util
.HashSet
;
15 import java
.util
.Iterator
;
17 import java
.util
.UUID
;
19 import org
.apache
.log4j
.Logger
;
20 import org
.eclipse
.core
.commands
.operations
.IUndoContext
;
21 import org
.eclipse
.jface
.dialogs
.MessageDialog
;
22 import org
.eclipse
.jface
.util
.LocalSelectionTransfer
;
23 import org
.eclipse
.jface
.viewers
.ISelection
;
24 import org
.eclipse
.jface
.viewers
.TreeSelection
;
25 import org
.eclipse
.jface
.viewers
.ViewerDropAdapter
;
26 import org
.eclipse
.swt
.dnd
.DND
;
27 import org
.eclipse
.swt
.dnd
.DropTargetEvent
;
28 import org
.eclipse
.swt
.dnd
.TransferData
;
30 import eu
.etaxonomy
.cdm
.hibernate
.HibernateProxyHelper
;
31 import eu
.etaxonomy
.cdm
.model
.common
.CdmBase
;
32 import eu
.etaxonomy
.cdm
.model
.taxon
.Classification
;
33 import eu
.etaxonomy
.cdm
.model
.taxon
.ITaxonTreeNode
;
34 import eu
.etaxonomy
.cdm
.model
.taxon
.TaxonNode
;
35 import eu
.etaxonomy
.cdm
.persistence
.hibernate
.permission
.CRUD
;
36 import eu
.etaxonomy
.taxeditor
.navigation
.NavigationUtil
;
37 import eu
.etaxonomy
.taxeditor
.navigation
.navigator
.operation
.MoveTaxonOperation
;
38 import eu
.etaxonomy
.taxeditor
.operation
.AbstractPostOperation
;
39 import eu
.etaxonomy
.taxeditor
.operation
.IPostOperationEnabled
;
40 import eu
.etaxonomy
.taxeditor
.preference
.PreferencesUtil
;
41 import eu
.etaxonomy
.taxeditor
.store
.CdmStore
;
44 * <p>TreeNodeDropAdapter class.</p>
50 public class TreeNodeDropAdapter
extends ViewerDropAdapter
implements IPostOperationEnabled
{
55 protected TreeNodeDropAdapter(TaxonNavigatorViewer navigatorViewer
) {
56 super(navigatorViewer
);
57 this.navigatorViewer
= navigatorViewer
;
61 private final TaxonNavigatorViewer navigatorViewer
;
62 private static final Logger logger
= Logger
.getLogger(TreeNodeDropAdapter
.class);
64 /** Constant <code>ID="eu.etaxonomy.taxeditor.navigation.navig"{trunked}</code> */
65 public static final String ID
= "eu.etaxonomy.taxeditor.navigation.navigator.dropassistant"; //$NON-NLS-1$
67 private static final EnumSet
<CRUD
> UPDATE
= EnumSet
.of(CRUD
.UPDATE
);
72 * @see org.eclipse.ui.navigator.CommonDropAdapterAssistant#handleDrop(org.eclipse.ui.navigator.CommonDropAdapter, org.eclipse.swt.dnd.DropTargetEvent, java.lang.Object)
76 public boolean performDrop(Object target
) {
79 if (target
instanceof ITaxonTreeNode
) {
80 Set
<TaxonNode
> taxonNodes
= getSelectedTaxa();
81 ITaxonTreeNode targetTreeNode
= (ITaxonTreeNode
) target
;
82 if (targetTreeNode
instanceof Classification
){
83 targetTreeNode
= ((Classification
)targetTreeNode
).getRootNode();
84 targetTreeNode
= HibernateProxyHelper
.deproxy(targetTreeNode
, TaxonNode
.class);
86 if(taxonNodes
!= null) {
87 if (taxonNodes
.size() == 1){
88 return moveTaxon(taxonNodes
, targetTreeNode
);
90 if( MessageDialog
.openConfirm(null, "Moving taxon", "The operation move accepted taxon to other parent is available only for a single taxon.")){
100 private Set
<TaxonNode
> getSelectedTaxa(){
101 HashSet
<TaxonNode
> taxonNodes
= new HashSet
<TaxonNode
>();
103 ISelection selection
= LocalSelectionTransfer
.getTransfer().getSelection();
104 if (selection
instanceof TreeSelection
) {
106 Iterator selectionIterator
= ((TreeSelection
) selection
).iterator();
108 while (selectionIterator
.hasNext()){
109 Object object
= selectionIterator
.next();
110 if(object
instanceof TaxonNode
){
111 TaxonNode taxonNode
= (TaxonNode
) object
;
112 taxonNodes
.add(taxonNode
);
116 return taxonNodes
.size() > 0 ? taxonNodes
: null;
120 * @see org.eclipse.ui.navigator.CommonDropAdapter#validateDrop(java.lang.Object, int, org.eclipse.swt.dnd.TransferData)
124 public boolean validateDrop(Object target
, int operation
,
125 TransferData transferType
) {
127 if (target
instanceof ITaxonTreeNode
) {
129 // check users permissions with target taxonnode and taxon
130 if (target
instanceof TaxonNode
) {
131 TaxonNode targetNode
= (TaxonNode
)target
;
132 Boolean hasTargetNodePermission
= CdmStore
.currentAuthentiationHasPermission(targetNode
, UPDATE
);
133 Boolean hasTargetTaxonPermission
= CdmStore
.currentAuthentiationHasPermission(targetNode
.getTaxon(), UPDATE
);
135 if(logger
.isDebugEnabled()){
136 logger
.debug("target: " + targetNode
.getTaxon().getTitleCache());
139 if(!hasTargetNodePermission
|| ! hasTargetNodePermission
){
140 if(logger
.isDebugEnabled()){
141 logger
.debug("CANCEL_STATUS for target node: " + hasTargetNodePermission
.toString() + " " + hasTargetTaxonPermission
.toString() + " ");
147 // do not allow to drop onto itself and
148 // check users permissions with all selected taxon nodes and taxa
149 for(TaxonNode taxonNode
: getSelectedTaxa()){
150 logger
.debug("selectedTaxa: " + taxonNode
.getTaxon().getTitleCache());
151 Boolean isSameTaxonNode
= taxonNode
.equals(target
);
152 Boolean hasTaxonNodePermission
= CdmStore
.currentAuthentiationHasPermission(taxonNode
, UPDATE
);
153 Boolean hasTaxonPermission
= CdmStore
.currentAuthentiationHasPermission(taxonNode
.getTaxon(), UPDATE
);
156 || !hasTaxonNodePermission
157 || !hasTaxonPermission
159 if(logger
.isDebugEnabled()){
160 logger
.debug("CANCEL_STATUS for selected " + isSameTaxonNode
.toString() + " " + hasTaxonNodePermission
.toString() + " " + hasTaxonPermission
.toString() + " ");
165 logger
.debug("OK_STATUS");
168 logger
.debug("CANCEL_STATUS");
174 * @param childTaxonNode
178 private boolean moveTaxon(Set
<TaxonNode
> taxonNodes
, ITaxonTreeNode targetITaxonTreeNode
) {
180 TaxonNavigator taxonNavigator
;
181 taxonNavigator
= (TaxonNavigator
) NavigationUtil
.showView(TaxonNavigator
.ID
);
183 if(targetITaxonTreeNode
instanceof TaxonNode
){
185 TaxonNode targetTaxonNode
= (TaxonNode
) targetITaxonTreeNode
;
186 // Make sure parent taxon does not have unsaved changes
187 if (NavigationUtil
.isDirty(targetTaxonNode
)){
188 MessageDialog
.openWarning(NavigationUtil
.getShell(), "Unsaved Parent Taxon", "There are unsaved " +
189 "changes in the parent taxon. Pleas save first.");
194 Iterator
<TaxonNode
> taxIterator
= taxonNodes
.iterator();
195 Set
<UUID
> uuids
= new HashSet
<UUID
>();
196 TaxonNode node
= null;
197 while(taxIterator
.hasNext()){
198 node
= taxIterator
.next();
199 uuids
.add(node
.getUuid());
201 if (!PreferencesUtil
.getSortNodesNaturally()){
202 IUndoContext workspaceUndoContext
= NavigationUtil
.getWorkbenchUndoContext();
203 if (workspaceUndoContext
== null) {
204 logger
.error("Workspace undo context is null. DND operation cancelled");
208 AbstractPostOperation operation
= new MoveTaxonOperation
209 ("Move Taxon", workspaceUndoContext
, uuids
, targetITaxonTreeNode
, this, taxonNavigator
, true);
210 NavigationUtil
.executeOperation(operation
);
212 logger
.info("Moved taxa to new parent " + targetITaxonTreeNode
);
215 String
[] buttonLables
= {"Parent", "Predecessor", "Cancel"};
216 MessageDialog dialog
= new MessageDialog(null, "Target node", null, "Do you want to use the target node as parent or do you want to move the taxon below the target.", MessageDialog
.QUESTION_WITH_CANCEL
, buttonLables
, 0);
218 int returnCode
= dialog
.getReturnCode();
219 if (returnCode
== 0){
220 IUndoContext workspaceUndoContext
= NavigationUtil
.getWorkbenchUndoContext();
221 if (workspaceUndoContext
== null) {
222 logger
.error("Workspace undo context is null. DND operation cancelled");
226 AbstractPostOperation operation
= new MoveTaxonOperation
227 ("Move Taxon", workspaceUndoContext
, uuids
, targetITaxonTreeNode
, this, taxonNavigator
, true);
228 NavigationUtil
.executeOperation(operation
);
230 logger
.info("Moved taxa to new parent " + targetITaxonTreeNode
);
232 }else if (returnCode
== 1){
233 IUndoContext workspaceUndoContext
= NavigationUtil
.getWorkbenchUndoContext();
234 if (workspaceUndoContext
== null) {
235 logger
.error("Workspace undo context is null. DND operation cancelled");
239 AbstractPostOperation operation
= new MoveTaxonOperation
240 ("Move Taxon", workspaceUndoContext
, uuids
, targetITaxonTreeNode
, this, taxonNavigator
, false);
241 NavigationUtil
.executeOperation(operation
);
243 logger
.info("Moved taxa to new parent " + targetITaxonTreeNode
);
254 * @see eu.etaxonomy.taxeditor.operations.IPostOperationEnabled#postOperation(eu.etaxonomy.cdm.model.common.CdmBase)
258 public boolean postOperation(CdmBase objectAffectedByOperation
) {
268 public boolean onComplete() {
269 // TODO Auto-generated method stub
273 public void dragOver(DropTargetEvent event
) {
274 super.dragOver(event
);
275 event
.feedback
= DND
.FEEDBACK_SELECT
| DND
.FEEDBACK_INSERT_AFTER
;