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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.navigation.navigator;
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import java.util.EnumSet;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.Set;
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import org.apache.log4j.Logger;
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import org.eclipse.core.runtime.IStatus;
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import org.eclipse.core.runtime.Status;
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import org.eclipse.jface.util.LocalSelectionTransfer;
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import org.eclipse.jface.viewers.ISelection;
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import org.eclipse.jface.viewers.TreeSelection;
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import org.eclipse.swt.dnd.DropTargetEvent;
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import org.eclipse.swt.dnd.TransferData;
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import org.eclipse.ui.navigator.CommonDropAdapter;
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import org.eclipse.ui.navigator.CommonDropAdapterAssistant;
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import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.taxon.Classification;
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import eu.etaxonomy.cdm.model.taxon.ITaxonTreeNode;
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import eu.etaxonomy.cdm.model.taxon.TaxonNode;
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import eu.etaxonomy.cdm.persistence.hibernate.permission.CRUD;
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import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
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import eu.etaxonomy.taxeditor.store.CdmStore;
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/**
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* <p>TaxonNodeDropAdapterAssistant class.</p>
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*
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* @author p.ciardelli
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* @created 03.06.2009
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*/
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public class TreeNodeDropAdapterAssistant extends CommonDropAdapterAssistant implements IPostOperationEnabled {
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private static final Logger logger = Logger.getLogger(TreeNodeDropAdapterAssistant.class);
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/** Constant <code>ID="eu.etaxonomy.taxeditor.navigation.navig"{trunked}</code> */
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public static final String ID = "eu.etaxonomy.taxeditor.navigation.navigator.dropassistant"; //$NON-NLS-1$
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private static final EnumSet<CRUD> UPDATE = EnumSet.of(CRUD.UPDATE);
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/** {@inheritDoc} */
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@Override
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public IStatus handleDrop(CommonDropAdapter dropAdapter,
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DropTargetEvent dropTargetEvent, Object target) {
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if (target instanceof ITaxonTreeNode) {
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Set<TaxonNode> taxonNodes = getSelectedTaxa();
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ITaxonTreeNode targetTreeNode = (ITaxonTreeNode) target;
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if (targetTreeNode instanceof Classification){
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targetTreeNode = ((Classification)targetTreeNode).getRootNode();
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targetTreeNode = HibernateProxyHelper.deproxy(targetTreeNode, TaxonNode.class);
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}
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//if(taxonNodes != null) {
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if (taxonNodes.size() >= 1){
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return moveTaxon(taxonNodes, targetTreeNode);
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/*} else{
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if( MessageDialog.openConfirm(null, "Moving taxon", "The operation move accepted taxon to other parent is available only for a single taxon.")){
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return null;
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}
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}*/
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}
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}
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return Status.CANCEL_STATUS;
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}
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private Set<TaxonNode> getSelectedTaxa(){
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HashSet<TaxonNode> taxonNodes = new HashSet<TaxonNode>();
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ISelection selection = LocalSelectionTransfer.getTransfer().getSelection();
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if (selection instanceof TreeSelection) {
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Iterator<?> selectionIterator = ((TreeSelection) selection).iterator();
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while (selectionIterator.hasNext()){
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Object object = selectionIterator.next();
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if(object instanceof TaxonNode){
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TaxonNode taxonNode = (TaxonNode) object;
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taxonNodes.add(taxonNode);
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}
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}
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}
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return taxonNodes.size() > 0 ? taxonNodes : null;
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}
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/** {@inheritDoc} */
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@Override
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public IStatus validateDrop(Object target, int operation,
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TransferData transferType) {
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if (target instanceof ITaxonTreeNode) {
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// check users permissions with target taxonnode and taxon
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if (target instanceof TaxonNode) {
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TaxonNode targetNode = (TaxonNode)target;
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boolean hasTargetNodePermission = CdmStore.currentAuthentiationHasPermission(targetNode, UPDATE);
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boolean hasTargetTaxonPermission = targetNode.getTaxon() == null ?
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true :
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CdmStore.currentAuthentiationHasPermission(targetNode.getTaxon(), UPDATE);
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if(logger.isDebugEnabled()){
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logger.debug("target: " + targetNode.getTaxon() == null? "-" : targetNode.getTaxon().getTitleCache()); //$NON-NLS-1$
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}
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if(!hasTargetNodePermission || ! hasTargetNodePermission){
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if(logger.isDebugEnabled()){
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logger.debug("CANCEL_STATUS for target node: " + hasTargetNodePermission + " " + hasTargetTaxonPermission + " "); //$NON-NLS-1$
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}
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return Status.CANCEL_STATUS;
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}
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}
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// do not allow to drop onto itself and
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// check users permissions with all selected taxon nodes and taxa
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for(TaxonNode taxonNode : getSelectedTaxa()){
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if (logger.isDebugEnabled()){
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logger.debug("selectedTaxa: " + taxonNode.getTaxon() == null? "-" : taxonNode.getTaxon().getTitleCache());
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}
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boolean isSameTaxonNode = taxonNode.equals(target);
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boolean hasTaxonNodePermission = CdmStore.currentAuthentiationHasPermission(taxonNode, UPDATE);
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boolean hasTaxonPermission = taxonNode.getTaxon() == null ?
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true :
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CdmStore.currentAuthentiationHasPermission(taxonNode.getTaxon(), UPDATE);
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if (
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isSameTaxonNode
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|| !hasTaxonNodePermission
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|| !hasTaxonPermission
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) {
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if(logger.isDebugEnabled()){
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logger.debug("CANCEL_STATUS for selected " + isSameTaxonNode + " " + hasTaxonNodePermission + " " + hasTaxonPermission + " "); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
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}
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return Status.CANCEL_STATUS;
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}
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}
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if (logger.isDebugEnabled()){logger.debug("OK_STATUS");} //$NON-NLS-1$
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return Status.OK_STATUS;
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}
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if (logger.isDebugEnabled()){logger.debug("CANCEL_STATUS");} //$NON-NLS-1$
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return Status.CANCEL_STATUS;
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}
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/**
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* @param childTaxonNode
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* @param parentTaxon
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* @return
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*/
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private IStatus moveTaxon(Set<TaxonNode> taxonNodes, ITaxonTreeNode targetITaxonTreeNode) {
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// TaxonNavigator taxonNavigator;
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// taxonNavigator = (TaxonNavigator) AbstractUtility.showView(TaxonNavigator.ID);
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//
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// if(targetITaxonTreeNode instanceof TaxonNode){
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//
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// TaxonNode targetTaxonNode = (TaxonNode) targetITaxonTreeNode;
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// // Make sure parent taxon does not have unsaved changes
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//// if (NavigationUtil.isDirty(targetTaxonNode)){
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//// MessageDialog.openWarning(NavigationUtil.getShell(), TreeNodeDropAdapter.TREE_NODE_DROP_ADAPTER_UNSAVED_PARENT, TreeNodeDropAdapter.TREE_NODE_DROP_ADAPTER_UNSAVED_PARENT_MESSAGE);
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//// return Status.CANCEL_STATUS;
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//// }
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//
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// }
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// Iterator<TaxonNode> taxIterator = taxonNodes.iterator();
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// Set<UUID> uuids = new HashSet<>();
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// TaxonNode node = null;
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// while(taxIterator.hasNext()){
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// node = taxIterator.next();
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// uuids.add(node.getUuid());
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// }
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// if (!PreferencesUtil.getSortNodesNaturally()){
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// IUndoContext workspaceUndoContext = NavigationUtil.getWorkbenchUndoContext();
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// if (workspaceUndoContext == null) {
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// logger.error("Workspace undo context is null. DND operation cancelled"); //$NON-NLS-1$
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// return Status.CANCEL_STATUS;
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// }
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//
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// AbstractOperation operation = new RemotingMoveTaxonOperation(taxonNavigator, false, uuids, (TaxonNode)targetITaxonTreeNode, MovingType.CHILD);
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// AbstractUtility.executeOperation(operation, (RemotingCdmHandlerE4)null);
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//
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//
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// logger.info("Moved taxa to new parent " + targetITaxonTreeNode); //$NON-NLS-1$
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// return Status.OK_STATUS;
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// }else{
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// String[] buttonLables = {TreeNodeDropAdapter.TREE_NODE_DROP_ADAPTER_CHILD, TreeNodeDropAdapter.TREE_NODE_DROP_ADAPTER_BEHIND, TreeNodeDropAdapter.TREE_NODE_DROP_ADAPTER_CANCEL};
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// MessageDialog dialog = new MessageDialog(null, TreeNodeDropAdapter.TARGET_NODE, null, TreeNodeDropAdapter.DO_YOU_WANT_TO_MOVE_THE_TAXONNODE_AS_CHILD_OR_BEHIND_THE_TARGET_NODE, MessageDialog.QUESTION_WITH_CANCEL, buttonLables, 0);
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// dialog.open();
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// int returnCode = dialog.getReturnCode();
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// if (returnCode == 0){
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// IUndoContext workspaceUndoContext = NavigationUtil.getWorkbenchUndoContext();
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// if (workspaceUndoContext == null) {
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// logger.error("Workspace undo context is null. DND operation cancelled"); //$NON-NLS-1$
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// return Status.CANCEL_STATUS;
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// }
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//
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// AbstractOperation operation = new RemotingMoveTaxonOperation(taxonNavigator, false, uuids, (TaxonNode)targetITaxonTreeNode, MovingType.CHILD);
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// AbstractUtility.executeOperation(operation, (RemotingCdmHandlerE4)null);
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//
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//
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// logger.info("Moved taxa to new parent " + targetITaxonTreeNode); //$NON-NLS-1$
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// return Status.OK_STATUS;
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// }else if (returnCode == 1){
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// IUndoContext workspaceUndoContext = NavigationUtil.getWorkbenchUndoContext();
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// if (workspaceUndoContext == null) {
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// logger.error("Workspace undo context is null. DND operation cancelled"); //$NON-NLS-1$
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// return Status.CANCEL_STATUS;
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// }
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// TaxonNode targetNode = (TaxonNode) targetITaxonTreeNode;
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//
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// AbstractOperation operation = new RemotingMoveTaxonOperation(taxonNavigator, false, uuids, targetNode, MovingType.BEHIND);
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// AbstractUtility.executeOperation(operation, (RemotingCdmHandlerE4)null);
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//
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// logger.info("Moved taxa to new parent " + targetITaxonTreeNode); //$NON-NLS-1$
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// return Status.OK_STATUS;
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//// }else if (returnCode == 2){
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//// IUndoContext workspaceUndoContext = NavigationUtil.getWorkbenchUndoContext();
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//// if (workspaceUndoContext == null) {
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//// logger.error("Workspace undo context is null. DND operation cancelled");
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//// return Status.CANCEL_STATUS;
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//// }
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//// TaxonNode targetNode = (TaxonNode) targetITaxonTreeNode;
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////
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//// if(CdmStore.getCurrentSessionManager().isRemoting()) {
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//// AbstractOperation operation = new RemotingMoveTaxonOperation(taxonNavigator, false, uuids, targetNode, MovingType.PREVIOUS);
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//// NavigationUtil.executeOperation(operation, null);
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//// } else {
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//// AbstractPostOperation operation = new MoveTaxonOperation
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//// ("Move Taxon", workspaceUndoContext, uuids, targetNode, this, taxonNavigator, MovingType.PREVIOUS);
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//// NavigationUtil.executeOperation(operation);
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//// }
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//// logger.info("Moved taxa to new parent " + targetITaxonTreeNode);
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//// return Status.OK_STATUS;
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// } else{
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return Status.CANCEL_STATUS;
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// }
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// }
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}
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/** {@inheritDoc} */
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@Override
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public boolean postOperation(CdmBase objectAffectedByOperation) {
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return true;
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}
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/**
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* <p>onComplete</p>
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*
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* @return a boolean.
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*/
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@Override
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public boolean onComplete() {
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// TODO Auto-generated method stub
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return false;
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}
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}
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