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package eu.etaxonomy.taxeditor.navigation.navigator.dnd;
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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.swt.dnd.DragSourceEvent;
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import org.eclipse.swt.dnd.Transfer;
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import org.eclipse.swt.dnd.TransferData;
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import org.eclipse.ui.navigator.CommonDragAdapterAssistant;
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import eu.etaxonomy.cdm.common.TreeNode;
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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.taxeditor.dnd.transfer.TaxonNodeTransfer;
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public class TaxonNavigatorDragAdapterAssistant extends
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CommonDragAdapterAssistant {
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@Override
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public Transfer[] getSupportedTransferTypes() {
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return new Transfer[] { TaxonNodeTransfer.getInstance()};
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}
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@Override
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public boolean setDragData(DragSourceEvent event,
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IStructuredSelection selection) {
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boolean setDataSuccess = false;
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List<TaxonNode> taxonNodes = new ArrayList<TaxonNode>();
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for (Object object : selection.toList()){
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if(object instanceof TaxonNode){
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taxonNodes.add(((TaxonNode) object));
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setDataSuccess = true;
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}
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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 ITaxonTreeNode[taxonNodes.size()]);
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}
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return setDataSuccess;
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}
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}
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