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/**
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*
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*/
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package eu.etaxonomy.taxeditor.editor.name.dnd;
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import org.eclipse.core.runtime.Assert;
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import org.eclipse.swt.SWTException;
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import org.eclipse.swt.dnd.DND;
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import org.eclipse.swt.dnd.DropTargetAdapter;
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import org.eclipse.swt.dnd.DropTargetEvent;
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import eu.etaxonomy.cdm.hibernate.HibernateProxyHelper;
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import eu.etaxonomy.cdm.model.common.ICdmBase;
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import eu.etaxonomy.cdm.model.name.HomotypicalGroup;
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import eu.etaxonomy.cdm.model.reference.Reference;
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import eu.etaxonomy.cdm.model.taxon.Synonym;
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import eu.etaxonomy.cdm.model.taxon.SynonymRelationship;
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import eu.etaxonomy.cdm.model.taxon.SynonymRelationshipType;
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import eu.etaxonomy.cdm.model.taxon.Taxon;
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import eu.etaxonomy.cdm.model.taxon.TaxonBase;
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import eu.etaxonomy.cdm.model.taxon.TaxonRelationshipType;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.IDropTargetable;
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import eu.etaxonomy.taxeditor.editor.name.TaxonNameEditor;
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import eu.etaxonomy.taxeditor.editor.name.container.AbstractHomotypicalGroupContainer;
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import eu.etaxonomy.taxeditor.editor.name.container.HomotypicalSynonymGroup;
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import eu.etaxonomy.taxeditor.editor.name.container.MisappliedGroup;
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import eu.etaxonomy.taxeditor.editor.name.operation.ChangeConceptRelationshipTypeOperation;
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import eu.etaxonomy.taxeditor.editor.name.operation.ChangeConceptToSynonymOperation;
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import eu.etaxonomy.taxeditor.editor.name.operation.ChangeHomotypicGroupOperation;
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import eu.etaxonomy.taxeditor.editor.name.operation.ChangeSynonymToMisapplicationOperation;
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import eu.etaxonomy.taxeditor.editor.name.operation.MoveSynonymToAnotherAcceptedTaxonOperation;
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import eu.etaxonomy.taxeditor.model.MessagingUtils;
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import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
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/**
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* <p>NameEditorDropTargetListener class.</p>
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*
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* @author n.hoffmann
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* @version $Id: $
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*/
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public class NameEditorDropTargetListener extends DropTargetAdapter {
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private IDropTargetable target;
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/**
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* <p>Constructor for NameEditorDropTargetListener.</p>
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*
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* @param target a {@link eu.etaxonomy.taxeditor.editor.IDropTargetable} object.
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*/
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public NameEditorDropTargetListener(IDropTargetable target){
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this.target = target;
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}
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/** {@inheritDoc} */
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public void dragEnter(DropTargetEvent dropTargetEvent) {
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target.dragEntered();
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// if(! EditorUtil.getActiveMultiPageTaxonEditor().equals(editor.getMultiPageTaxonEditor())){
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// editor.getMultiPageTaxonEditor().setFocus();
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// }
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}
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/** {@inheritDoc} */
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public void dragLeave(DropTargetEvent dropTargetEvent) {
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target.dragLeft();
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}
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/** {@inheritDoc} */
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public void drop(DropTargetEvent dropTargetEvent) {
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if (!EditorUtil.forceUserSave(target.getEditor(), dropTargetEvent.display.getActiveShell())){
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return ;
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}
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TaxonBase taxonBase = getDroppedTaxonBase(dropTargetEvent);
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Assert.isNotNull(taxonBase);
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if(taxonBase.getHomotypicGroup().equals(getHomotypicalGroup())){
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// do nothing when dragged to the same group
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dropTargetEvent.detail = DND.DROP_NONE;
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return;
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}
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// Execute operations at end of drag event
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AbstractPostOperation operation = createOperation(taxonBase);
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// Execute operation if it has been initiated
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if (operation == null) {
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MessagingUtils.warn(getClass(), "User unsuccessfully tried to drop: " + taxonBase.getClass() +
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". Target: " + target);
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dropTargetEvent.detail = DND.DROP_NONE;
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} else {
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EditorUtil.executeOperation(operation);
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}
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target.getEditor().getConversationHolder().commit();
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if (!target.equals(EditorUtil.getActiveMultiPageTaxonEditor().getActiveEditor())){
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((TaxonNameEditor)EditorUtil.getActiveMultiPageTaxonEditor().getActiveEditor()).redraw();
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((TaxonNameEditor)EditorUtil.getActiveMultiPageTaxonEditor().getActiveEditor()).getConversationHolder().commit();
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}
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target.getEditor().redraw();
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}
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private AbstractPostOperation createOperation(TaxonBase taxonBase) {
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if(taxonBase instanceof Synonym){
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Synonym synonym = (Synonym) taxonBase;
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if(target instanceof AbstractHomotypicalGroupContainer){
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HomotypicalGroup homotypicalGroup = ((AbstractHomotypicalGroupContainer) target).getGroup();
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return new ChangeHomotypicGroupOperation("Change Homotypical Group", getEditor().getUndoContext(),
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getEditor().getTaxon(), synonym, homotypicalGroup, target);
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}
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else if(target instanceof MisappliedGroup){
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return new ChangeSynonymToMisapplicationOperation("Change Synonym to Misapplication", getEditor().getUndoContext(),
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getEditor().getTaxon(), synonym, target);
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}
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else if(target instanceof TaxonNameEditor){
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if (target.equals(getEditor())){
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return new ChangeHomotypicGroupOperation("Change Homotypical Group", getEditor().getUndoContext(),
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getEditor().getTaxon(), synonym, null, target);
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} else{
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getEditor().getConversationHolder().commit();
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((TaxonNameEditor) target).getConversationHolder().commit();
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return new MoveSynonymToAnotherAcceptedTaxonOperation("Change accepted Taxon", getEditor().getUndoContext(), getEditor().getTaxon().getUuid(), synonym.getUuid(), ((TaxonNameEditor) target).getTaxon(), null );
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}
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}
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}else if(taxonBase instanceof Taxon){
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Taxon concept = (Taxon) taxonBase;
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if(target instanceof AbstractHomotypicalGroupContainer){
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HomotypicalGroup homotypicalGroup = ((AbstractHomotypicalGroupContainer) target).getGroup();
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return new ChangeConceptToSynonymOperation("Change to Synonym", getEditor().getUndoContext(),
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getEditor().getTaxon(), concept, homotypicalGroup, target);
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}
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else if(target instanceof MisappliedGroup ){
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return new ChangeConceptRelationshipTypeOperation("Change", getEditor().getUndoContext(),
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getEditor().getTaxon(), concept, TaxonRelationshipType.MISAPPLIED_NAME_FOR(), target);
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}
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}
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return null;
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}
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/** {@inheritDoc} */
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@Override
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public void dropAccept(DropTargetEvent event) {
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// pass
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}
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private HomotypicalGroup getHomotypicalGroup() {
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if(target instanceof AbstractHomotypicalGroupContainer){
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return ((AbstractHomotypicalGroupContainer) target).getGroup();
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}
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return null;
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}
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private TaxonBase getDroppedTaxonBase(DropTargetEvent dropTargetEvent){
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if(dropTargetEvent.data instanceof ICdmBase[]){
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ICdmBase[] cdmBaseObjects = (ICdmBase[]) dropTargetEvent.data;
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if(cdmBaseObjects[0] instanceof TaxonBase){
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return (TaxonBase) cdmBaseObjects[0];
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}
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}
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return null;
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}
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/**
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* @return
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*
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*/
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private TaxonNameEditor getEditor() {
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return (TaxonNameEditor) EditorUtil.getActiveMultiPageTaxonEditor().getActiveEditor();
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}
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}
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