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 javax.inject.Named;
  11
  12 import org.eclipse.core.commands.operations.AbstractOperation;
  13 import org.eclipse.core.runtime.IStatus;
  14 import org.eclipse.core.runtime.Status;
  15 import org.eclipse.e4.core.di.annotations.CanExecute;
  16 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  17 import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
  18 import org.eclipse.e4.ui.services.IServiceConstants;
  19 import org.eclipse.jface.viewers.TreeSelection;
  20 import org.eclipse.swt.widgets.Shell;
  21
  22 import eu.etaxonomy.cdm.api.conversation.ConversationHolderMock;
  23 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  24 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  25 import eu.etaxonomy.taxeditor.navigation.l10n.Messages;
  26 import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigatorLabels;
  27 import eu.etaxonomy.taxeditor.navigation.navigator.operation.RemotingChangeAcceptedTaxonToSynonymOperation;
  28 import eu.etaxonomy.taxeditor.operation.e4.RemotingCdmHandlerE4;
  29 import eu.etaxonomy.taxeditor.ui.dialog.selection.TaxonNodeSelectionDialog;
  30
  31 /**
  32  *
  33  * @author pplitzner
  34  * @since Sep 6, 2017
  35  *
  36  */
  37 public class RemotingChangeAcceptedTaxonToSynonymHandlerE4 extends RemotingCdmHandlerE4 {
  38
  39
  40     private TaxonNode oldTaxonNode;
  41
  42     public RemotingChangeAcceptedTaxonToSynonymHandlerE4() {
  43         super(TaxonNavigatorLabels.CHANGE_ACCEPTED_TAXON_TO_SYNONYM_LABEL);
  44     }
  45
  46     @Override
  47     public IStatus allowOperations(TreeSelection selection,
  48             Shell shell,
  49             MPart activePart,
  50             MHandledMenuItem menuItem) {
  51         // check that only a single taxon tree node has been selected
  52         if(selection.size() > 1) {
  53             return new Status(IStatus.ERROR,
  54                     "unknown", //$NON-NLS-1$
  55                     TaxonNavigatorLabels.SINGLE_TAXON_SELECTION_MESSAGE);
  56         }
  57
  58         // check for no taxon tree node selected
  59         if(selection.size() == 0) {
  60             return new Status(IStatus.ERROR,
  61                     "unknown", //$NON-NLS-1$
  62                     TaxonNavigatorLabels.NO_TAXON_SELECTION_MESSAGE);
  63         }
  64
  65         // check that selected object is a taxon node
  66         Object obj = selection.iterator().next();
  67         if(obj instanceof TaxonNode && ((TaxonNode)obj).hasTaxon()) {
  68             oldTaxonNode = (TaxonNode)obj;
  69         } else {
  70                 if (obj instanceof TaxonNode && !((TaxonNode)obj).hasTaxon()){
  71                         return new Status(IStatus.ERROR,
  72                         "Operation not available for Classifications", //$NON-NLS-1$
  73                         TaxonNavigatorLabels.SELECTED_OBJECT_NOT_TREE_NODE_MESSAGE);
  74                 }
  75             return new Status(IStatus.ERROR,
  76                     "unknown", //$NON-NLS-1$
  77                     TaxonNavigatorLabels.SELECTED_OBJECT_NOT_TREE_NODE_MESSAGE);
  78         }
  79         // check that the source taxon node does not have children
  80         if(oldTaxonNode.getCountChildren() > 0) {
  81             return new Status(IStatus.ERROR,
  82                     "unknown", //$NON-NLS-1$
  83                     TaxonNavigatorLabels.SOURCE_TAXON_HAS_CHILDREN_MESSAGE);
  84
  85         }
  86
  87         // check if corresponding name editor is closed
  88         EditorUtil.closeObsoleteEditor(oldTaxonNode, partService);
  89
  90         return Status.OK_STATUS;
  91     }
  92
  93     @Override
  94     public AbstractOperation prepareOperation(TreeSelection selection,
  95             Shell shell,
  96             MPart activePart,
  97             MHandledMenuItem menuItem) {
  98         List<UUID> excludeTaxa = new ArrayList<UUID>();
  99         excludeTaxa.add(oldTaxonNode.getTaxon().getUuid());
 100         TaxonNode newAcceptedTaxonNode = TaxonNodeSelectionDialog.select(shell,
 101                 new ConversationHolderMock(),
 102                 Messages.RemotingChangeAcceptedTaxonToSynonymHandler_CHOOSE_TAXON,
 103                 excludeTaxa,
 104                 oldTaxonNode,
 105                 oldTaxonNode.getClassification());
 106
 107         if (newAcceptedTaxonNode == null) {
 108             return null;
 109         }
 110
 111         RemotingChangeAcceptedTaxonToSynonymOperation rcattso =
 112                 new RemotingChangeAcceptedTaxonToSynonymOperation(getTrigger(),
 113                         false,
 114                         oldTaxonNode.getUuid(),
 115                         newAcceptedTaxonNode.getUuid());
 116
 117         return rcattso;
 118     }
 119
 120     @CanExecute
 121     private boolean canExecute(@Named(IServiceConstants.ACTIVE_SELECTION)TreeSelection selection, MHandledMenuItem menuItem){
 122         boolean canExecute = false;
 123         menuItem.setVisible(canExecute);
 124         canExecute = selection.getFirstElement() instanceof TaxonNode;
 125         System.out.println(canExecute);
 126         return canExecute;
 127     }
 128
 129     @Override
 130     public void onComplete() {
 131     }
 132
 133     /**
 134      * {@inheritDoc}
 135      */
 136     @Override
 137     protected Object getTrigger() {
 138         return this;
 139     }
 140 }