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/**
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* Copyright (C) 2015 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.List;
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import java.util.UUID;
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import org.eclipse.core.commands.ExecutionEvent;
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import org.eclipse.core.commands.operations.AbstractOperation;
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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.dialogs.MessageDialog;
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import org.eclipse.jface.viewers.TreeSelection;
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import org.eclipse.swt.widgets.Shell;
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import org.eclipse.ui.handlers.HandlerUtil;
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import eu.etaxonomy.cdm.api.conversation.ConversationHolderMock;
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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.TaxonNavigatorLabels;
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import eu.etaxonomy.taxeditor.navigation.navigator.TreeNodeDropAdapter.MovingType;
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import eu.etaxonomy.taxeditor.navigation.navigator.operation.RemotingMoveTaxonOperation;
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import eu.etaxonomy.taxeditor.operation.RemotingCdmHandler;
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import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
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import eu.etaxonomy.taxeditor.ui.dialog.selection.TaxonNodeSelectionDialog;
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/**
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* @author cmathew
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* @date 19 Jun 2015
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*
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*/
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public class RemotingMoveTaxonNodeHandler extends RemotingCdmHandler {
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private TaxonNode oldTaxonNode;
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public RemotingMoveTaxonNodeHandler() {
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super(TaxonNavigatorLabels.MOVE_TAXON_LABEL);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#allowOperations(org.eclipse.core.commands.ExecutionEvent)
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*/
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@Override
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public IStatus allowOperations(ExecutionEvent event) {
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TreeSelection selection = (TreeSelection) HandlerUtil.getCurrentSelection(event);
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// check that only a single taxon tree node has been selected
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if(selection.size() > 1) {
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return new Status(IStatus.ERROR,
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"unknown",
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TaxonNavigatorLabels.SINGLE_TAXON_SELECTION_MESSAGE);
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}
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// check for no taxon tree node selected
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if(selection.size() == 0) {
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return new Status(IStatus.ERROR,
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"unknown",
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TaxonNavigatorLabels.NO_TAXON_SELECTION_MESSAGE);
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}
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// check that selected object is a taxon node
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Object obj = selection.iterator().next();
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if(obj instanceof TaxonNode) {
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oldTaxonNode = (TaxonNode)obj;
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} else {
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return new Status(IStatus.ERROR,
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"unknown",
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TaxonNavigatorLabels.SELECTED_OBJECT_NOT_TREE_NODE_MESSAGE);
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}
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return Status.OK_STATUS;
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#prepareOperation(org.eclipse.core.commands.ExecutionEvent)
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*/
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@Override
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public AbstractOperation prepareOperation(ExecutionEvent event) {
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Shell activeShell = HandlerUtil.getActiveShell(event);
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TaxonNode parentTaxonNode;
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List<UUID> excludeTaxa = new ArrayList<UUID>();
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excludeTaxa.add(oldTaxonNode.getTaxon().getUuid());
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MovingType moveToNewParent = MovingType.CHILD;
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if (PreferencesUtil.getSortNodesNaturally()){
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parentTaxonNode = TaxonNodeSelectionDialog.select(activeShell,
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new ConversationHolderMock(),
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"Choose the taxon above the moved taxon.",
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excludeTaxa,
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null,
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oldTaxonNode.getClassification());
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String[] buttonLables = {"Child", "Behind","Cancel"};
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MessageDialog dialog = new MessageDialog(null, "Target node", null, "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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moveToNewParent = MovingType.CHILD;
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} else if (returnCode == 1){
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moveToNewParent = MovingType.BEHIND;
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}
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} else {
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parentTaxonNode = TaxonNodeSelectionDialog.select(activeShell,
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new ConversationHolderMock(),
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"Choose new parent",
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excludeTaxa,
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null,
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oldTaxonNode.getClassification());
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}
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if(parentTaxonNode != null){
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if(NavigationUtil.isDirty(parentTaxonNode)){
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MessageDialog.openWarning(activeShell,
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"Unsaved Parent Taxon",
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"There are unsaved changes in the parent taxon. Please save first.");
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return null;
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}
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return new RemotingMoveTaxonOperation(event.getTrigger(),
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false,
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oldTaxonNode.getUuid(),
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parentTaxonNode.getUuid(),
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moveToNewParent);
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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.operation.RemotingCdmHandler#onComplete()
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*/
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@Override
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public void onComplete() {
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// TODO Auto-generated method stub
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}
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}
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