eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/e4/handler/RemotingChangeAcceptedTaxonToSynonymHandlerE4.java

   1 /**
   2  *
   3  */
   4 package eu.etaxonomy.taxeditor.navigation.navigator.e4.handler;
   5
   6 import java.util.ArrayList;
   7 import java.util.List;
   8 import java.util.UUID;
   9
  10 import org.eclipse.core.commands.operations.AbstractOperation;
  11 import org.eclipse.core.runtime.IStatus;
  12 import org.eclipse.core.runtime.Status;
  13 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  14 import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
  15 import org.eclipse.jface.viewers.TreeSelection;
  16 import org.eclipse.swt.widgets.Shell;
  17
  18 import eu.etaxonomy.cdm.api.conversation.ConversationHolderMock;
  19 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  20 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  21 import eu.etaxonomy.taxeditor.navigation.l10n.Messages;
  22 import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigatorLabels;
  23 import eu.etaxonomy.taxeditor.navigation.navigator.operation.RemotingChangeAcceptedTaxonToSynonymOperation;
  24 import eu.etaxonomy.taxeditor.operation.e4.RemotingCdmHandlerE4;
  25 import eu.etaxonomy.taxeditor.ui.dialog.selection.TaxonNodeSelectionDialog;
  26
  27 /**
  28  *
  29  * @author pplitzner
  30  * @since Sep 6, 2017
  31  *
  32  */
  33 public class RemotingChangeAcceptedTaxonToSynonymHandlerE4 extends RemotingCdmHandlerE4 {
  34
  35
  36     private TaxonNode oldTaxonNode;
  37
  38     public RemotingChangeAcceptedTaxonToSynonymHandlerE4() {
  39         super(TaxonNavigatorLabels.CHANGE_ACCEPTED_TAXON_TO_SYNONYM_LABEL);
  40     }
  41
  42     @Override
  43     public IStatus allowOperations(TreeSelection selection,
  44             Shell shell,
  45             MPart activePart,
  46             MHandledMenuItem menuItem) {
  47         // check that only a single taxon tree node has been selected
  48         if(selection.size() > 1) {
  49             return new Status(IStatus.ERROR,
  50                     "unknown", //$NON-NLS-1$
  51                     TaxonNavigatorLabels.SINGLE_TAXON_SELECTION_MESSAGE);
  52         }
  53
  54         // check for no taxon tree node selected
  55         if(selection.size() == 0) {
  56             return new Status(IStatus.ERROR,
  57                     "unknown", //$NON-NLS-1$
  58                     TaxonNavigatorLabels.NO_TAXON_SELECTION_MESSAGE);
  59         }
  60
  61         // check that selected object is a taxon node
  62         Object obj = selection.iterator().next();
  63         if(obj instanceof TaxonNode && ((TaxonNode)obj).hasTaxon()) {
  64             oldTaxonNode = (TaxonNode)obj;
  65         } else {
  66                 if (obj instanceof TaxonNode && !((TaxonNode)obj).hasTaxon()){
  67                         return new Status(IStatus.ERROR,
  68                         "Operation not available for Classifications", //$NON-NLS-1$
  69                         TaxonNavigatorLabels.SELECTED_OBJECT_NOT_TREE_NODE_MESSAGE);
  70                 }
  71             return new Status(IStatus.ERROR,
  72                     "unknown", //$NON-NLS-1$
  73                     TaxonNavigatorLabels.SELECTED_OBJECT_NOT_TREE_NODE_MESSAGE);
  74         }
  75         // check that the source taxon node does not have children
  76         if(oldTaxonNode.getCountChildren() > 0) {
  77             return new Status(IStatus.ERROR,
  78                     "unknown", //$NON-NLS-1$
  79                     TaxonNavigatorLabels.SOURCE_TAXON_HAS_CHILDREN_MESSAGE);
  80
  81         }
  82
  83         // check if corresponding name editor is closed
  84         EditorUtil.closeObsoleteEditor(oldTaxonNode, partService);
  85
  86         return Status.OK_STATUS;
  87     }
  88
  89     @Override
  90     public AbstractOperation prepareOperation(TreeSelection selection,
  91             Shell shell,
  92             MPart activePart,
  93             MHandledMenuItem menuItem) {
  94         List<UUID> excludeTaxa = new ArrayList<UUID>();
  95         excludeTaxa.add(oldTaxonNode.getTaxon().getUuid());
  96         TaxonNode newAcceptedTaxonNode = TaxonNodeSelectionDialog.select(shell,
  97                 new ConversationHolderMock(),
  98                 Messages.RemotingChangeAcceptedTaxonToSynonymHandler_CHOOSE_TAXON,
  99                 excludeTaxa,
 100                 oldTaxonNode,
 101                 oldTaxonNode.getClassification());
 102
 103         if (newAcceptedTaxonNode == null) {
 104             return null;
 105         }
 106
 107         RemotingChangeAcceptedTaxonToSynonymOperation rcattso =
 108                 new RemotingChangeAcceptedTaxonToSynonymOperation(getTrigger(),
 109                         false,
 110                         oldTaxonNode.getUuid(),
 111                         newAcceptedTaxonNode.getUuid());
 112
 113         return rcattso;
 114     }
 115
 116     @Override
 117     public void onComplete() {
 118     }
 119
 120     /**
 121      * {@inheritDoc}
 122      */
 123     @Override
 124     protected Object getTrigger() {
 125         return this;
 126     }
 127 }