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// $Id$
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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;
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import java.util.ArrayList;
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import java.util.List;
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import org.eclipse.jface.viewers.IStructuredSelection;
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import org.eclipse.jface.viewers.Viewer;
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import org.eclipse.swt.dnd.DragSourceAdapter;
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import org.eclipse.swt.dnd.DragSourceEvent;
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import org.eclipse.ui.navigator.CommonViewer;
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import eu.etaxonomy.cdm.model.common.DefinedTermBase;
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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.taxeditor.dnd.transfer.TaxonNodeTransfer;
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import eu.etaxonomy.taxeditor.editor.definedterm.TermTransfer;
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/**
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* @author k.luther
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* @date 02.06.2015
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*
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*/
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public class TreeNodeDragListener extends DragSourceAdapter {
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private CommonViewer viewer;
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/**
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*
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*/
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public TreeNodeDragListener(CommonViewer viewer) {
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this.viewer = viewer;
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}
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public void setViewer(CommonViewer viewer){
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this.viewer = viewer;
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}
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/* (non-Javadoc)
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* @see org.eclipse.swt.dnd.DragSourceAdapter#dragStart(org.eclipse.swt.dnd.DragSourceEvent)
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*/
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@Override
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public void dragStart(DragSourceEvent event) {
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event.doit = true;// set to false if needed - default is true
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}
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/* (non-Javadoc)
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* @see org.eclipse.swt.dnd.DragSourceAdapter#dragFinished(org.eclipse.swt.dnd.DragSourceEvent)
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*/
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@Override
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public void dragFinished(DragSourceEvent event) {
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// TODO Auto-generated method stub
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super.dragFinished(event);
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}
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/* (non-Javadoc)
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* @see org.eclipse.swt.dnd.DragSourceAdapter#dragSetData(org.eclipse.swt.dnd.DragSourceEvent)
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*/
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@Override
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public void dragSetData(DragSourceEvent event) {
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IStructuredSelection selection = (IStructuredSelection) viewer.getSelection();
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List<ITaxonTreeNode> taxonNodes = new ArrayList<ITaxonTreeNode>();
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for (Object object : selection.toList()){
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taxonNodes.add((ITaxonTreeNode)object);
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}
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if (TaxonNodeTransfer.getInstance().isSupportedType(
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event.dataType)) {
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event.data = taxonNodes.toArray(new TaxonNode[taxonNodes.size()]);
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}
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}
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}
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