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/**
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*
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*/
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package eu.etaxonomy.taxeditor.editor.name.e4.dnd;
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import org.eclipse.core.runtime.Assert;
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import org.eclipse.e4.ui.di.UISynchronize;
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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.model.common.ICdmBase;
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import eu.etaxonomy.cdm.model.name.HomotypicalGroup;
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import eu.etaxonomy.cdm.model.taxon.Synonym;
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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.l10n.Messages;
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import eu.etaxonomy.taxeditor.editor.name.e4.IDropTargetableE4;
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import eu.etaxonomy.taxeditor.editor.name.e4.TaxonNameEditorE4;
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import eu.etaxonomy.taxeditor.editor.name.e4.container.AbstractHomotypicalGroupContainerE4;
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import eu.etaxonomy.taxeditor.editor.name.e4.container.MisappliedGroupE4;
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import eu.etaxonomy.taxeditor.editor.name.e4.operation.MoveSynonymToAnotherAcceptedTaxonOperationE4;
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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.event.EventUtility;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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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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*
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* @author pplitzner
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* @date Aug 24, 2017
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*
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*/
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public class NameEditorDropTargetListenerE4 extends DropTargetAdapter {
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private IDropTargetableE4 target;
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public NameEditorDropTargetListenerE4(IDropTargetableE4 target){
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this.target = target;
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}
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/** {@inheritDoc} */
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@Override
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public void dragEnter(DropTargetEvent dropTargetEvent) {
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target.dragEntered();
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}
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/** {@inheritDoc} */
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@Override
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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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@Override
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public void drop(DropTargetEvent dropTargetEvent) {
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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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if (target instanceof MisappliedGroupE4){
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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(), String.format(Messages.NameEditorDropTargetListener_UNSUCCESSFULL_DROP, taxonBase.getClass(), target));
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dropTargetEvent.detail = DND.DROP_NONE;
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} else {
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AbstractUtility.executeOperation(operation, target.getContext().get(UISynchronize.class));
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}
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target.getEditor().getConversationHolder().commit();
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if (!target.equals(EventUtility.getTaxonEditor())){
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((TaxonNameEditorE4)EventUtility.getTaxonEditor()).redraw();
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((TaxonNameEditorE4)EventUtility.getTaxonEditor()).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 AbstractHomotypicalGroupContainerE4){
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HomotypicalGroup homotypicalGroup = ((AbstractHomotypicalGroupContainerE4) target).getGroup();
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return new ChangeHomotypicGroupOperation(Messages.NameEditorDropTargetListener_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 MisappliedGroupE4){
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return new ChangeSynonymToMisapplicationOperation(Messages.NameEditorDropTargetListener_CHANGE_SYNONYM_TO_MISAPP, getEditor().getUndoContext(),
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getEditor().getTaxon(), synonym, target);
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}
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else if(target instanceof TaxonNameEditorE4){
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if (target.equals(getEditor())){
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return new ChangeHomotypicGroupOperation(Messages.NameEditorDropTargetListener_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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((TaxonNameEditorE4) target).getConversationHolder().commit();
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return new MoveSynonymToAnotherAcceptedTaxonOperationE4(Messages.NameEditorDropTargetListener_CHANGE_ACC_TAXON, getEditor().getUndoContext(), synonym.getUuid(), ((TaxonNameEditorE4) target).getTaxon(), (TaxonNameEditorE4) target, (TaxonNameEditorE4) target);
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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 AbstractHomotypicalGroupContainerE4){
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HomotypicalGroup homotypicalGroup = ((AbstractHomotypicalGroupContainerE4) target).getGroup();
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return new ChangeConceptToSynonymOperation(Messages.NameEditorDropTargetListener_CHANGE_SYNONYM, getEditor().getUndoContext(),
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getEditor().getTaxon(), concept, homotypicalGroup, target);
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}
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else if(target instanceof MisappliedGroupE4){
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return new ChangeConceptRelationshipTypeOperation(Messages.NameEditorDropTargetListener_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 AbstractHomotypicalGroupContainerE4){
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return ((AbstractHomotypicalGroupContainerE4) 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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private TaxonNameEditorE4 getEditor() {
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return (TaxonNameEditorE4) EventUtility.getTaxonEditor();
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}
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}
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