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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.handler;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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import java.util.UUID;
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import org.eclipse.core.commands.AbstractHandler;
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import org.eclipse.core.commands.ExecutionEvent;
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import org.eclipse.core.commands.ExecutionException;
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import org.eclipse.jface.dialogs.MessageDialog;
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import org.eclipse.jface.viewers.TreeSelection;
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import org.eclipse.ui.handlers.HandlerUtil;
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import eu.etaxonomy.cdm.model.common.CdmBase;
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import eu.etaxonomy.cdm.model.taxon.TaxonNode;
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import eu.etaxonomy.taxeditor.navigation.NavigationUtil;
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import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigator;
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import eu.etaxonomy.taxeditor.navigation.navigator.operation.MoveTaxonOperation;
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import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
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import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
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import eu.etaxonomy.taxeditor.ui.dialog.selection.TaxonNodeSelectionDialog;
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/**
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* <p>MoveTaxonHandler class.</p>
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*
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* @author n.hoffmann
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* @created 01.04.2009
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* @version 1.0
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*/
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public class MoveTaxonHandler extends AbstractHandler implements IPostOperationEnabled {
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private TaxonNode parentTaxonNode;
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/* (non-Javadoc)
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* @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
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*/
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/** {@inheritDoc} */
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public Object execute(ExecutionEvent event) throws ExecutionException {
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TaxonNavigator taxonNavigator = NavigationUtil.showNavigator();
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TreeSelection selection = (TreeSelection) HandlerUtil.getCurrentSelection(event);
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Iterator selectionIterator = selection.iterator();
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Set<TaxonNode> taxonNodes = new HashSet<TaxonNode>();
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// do not show the current selection
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List<UUID> excludeTaxa = new ArrayList<UUID>();
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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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excludeTaxa.add(taxonNode.getTaxon().getUuid());
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}
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}
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// TaxonNode taxonNode = (TaxonNode) selection.getFirstElement();
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parentTaxonNode = TaxonNodeSelectionDialog.select(HandlerUtil.getActiveShell(event), taxonNavigator.getConversationHolder(), "Choose new parent", excludeTaxa, null, null);
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if(parentTaxonNode != null){
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if(NavigationUtil.isDirty(parentTaxonNode)){
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MessageDialog.openWarning(HandlerUtil.getActiveShell(event), "Unsaved Parent Taxon", "There are unsaved " +
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"changes in the parent taxon. Please save first.");
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return null;
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}
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AbstractPostOperation operation = new MoveTaxonOperation
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("Move taxon to new parent", NavigationUtil.getUndoContext(),
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taxonNodes, parentTaxonNode, this, taxonNavigator); //$NON-NLS-1$
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NavigationUtil.executeOperation(operation);
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}
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return null;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.operations.IPostOperationEnabled#postOperation(eu.etaxonomy.cdm.model.common.CdmBase)
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*/
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/** {@inheritDoc} */
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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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public boolean onComplete() {
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return false;
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}
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}
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