eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/concept/handler/CreateConceptRelationHandler.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.taxeditor.editor.view.concept.handler;
  11
  12 import org.eclipse.core.commands.AbstractHandler;
  13 import org.eclipse.core.commands.ExecutionEvent;
  14 import org.eclipse.core.commands.ExecutionException;
  15 import org.eclipse.core.commands.common.NotDefinedException;
  16 import org.eclipse.core.commands.operations.IUndoContext;
  17 import org.eclipse.core.runtime.Status;
  18 import org.eclipse.jface.viewers.ISelection;
  19 import org.eclipse.jface.viewers.IStructuredSelection;
  20 import org.eclipse.swt.widgets.Event;
  21 import org.eclipse.ui.IEditorPart;
  22 import org.eclipse.ui.IWorkbenchPart;
  23 import org.eclipse.ui.handlers.HandlerUtil;
  24
  25 import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
  26 import eu.etaxonomy.cdm.model.taxon.Taxon;
  27 import eu.etaxonomy.cdm.model.taxon.TaxonRelationshipType;
  28 import eu.etaxonomy.taxeditor.bulkeditor.BulkEditor;
  29 import eu.etaxonomy.taxeditor.editor.MultiPageTaxonEditor;
  30 import eu.etaxonomy.taxeditor.editor.view.concept.operation.CreateConceptRelationOperation;
  31 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  32 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  33 import eu.etaxonomy.taxeditor.model.TaxonRelationshipTypeInverseContainer;
  34 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
  35 import eu.etaxonomy.taxeditor.operation.IPostOperationEnabled;
  36 import eu.etaxonomy.taxeditor.ui.dialog.selection.TaxonBaseSelectionDialog;
  37
  38 /**
  39  * @author n.hoffmann
  40  * @created 16.04.2009
  41  * @version 1.0
  42  */
  43 public class CreateConceptRelationHandler extends AbstractHandler {
  44
  45         /** {@inheritDoc} */
  46         @Override
  47         public Object execute(ExecutionEvent event) throws ExecutionException {
  48             IUndoContext undoContext = null;
  49             ConversationHolder conversationHolder = null;
  50             Taxon taxon = null;
  51                 IEditorPart activeEditor = AbstractUtility.getActiveEditor();
  52                 if(activeEditor instanceof MultiPageTaxonEditor){
  53                     MultiPageTaxonEditor taxonEditor = (MultiPageTaxonEditor)activeEditor;
  54                     taxon = taxonEditor.getTaxon();
  55                     conversationHolder = taxonEditor.getConversationHolder();
  56                     undoContext = taxonEditor.getUndoContext();
  57                 }
  58                 else if(activeEditor instanceof BulkEditor){
  59                     BulkEditor bulkEditor = (BulkEditor)activeEditor;
  60             ISelection selection = bulkEditor.getSelectionProvider().getSelection();
  61                     taxon = (Taxon) ((IStructuredSelection)selection).getFirstElement();
  62                     conversationHolder = bulkEditor.getConversationHolder();
  63                     undoContext = bulkEditor.getUndoContext();
  64                 }
  65
  66
  67                 /* we need to get the activePart before calling TaxonBaseSelectionDialog.selectTaxon(), otherwise the
  68                  * the variable of the parent applicationContext in event are overwritten during this method call
  69                  * this is Linux specific bugfix see: #2685 ([LINUX] Editing concept relationships does not work under linux)
  70                  */
  71                 IWorkbenchPart activePart = HandlerUtil.getActivePart(event);
  72
  73                 Taxon relatedConcept = TaxonBaseSelectionDialog.selectTaxon(HandlerUtil.getActiveShell(event), conversationHolder, taxon);
  74
  75
  76                 if(relatedConcept == null){
  77                         return Status.CANCEL_STATUS;
  78                 }
  79                 TaxonRelationshipType type = (TaxonRelationshipType) ((Event)event.getTrigger()).data;
  80                 boolean isInverse = type.getInverseLabel().isEmpty()?false:true;
  81                 TaxonRelationshipTypeInverseContainer typeInverseContainer =new TaxonRelationshipTypeInverseContainer(type, isInverse) ;
  82
  83
  84                 IPostOperationEnabled postOperationEnabled = (activePart instanceof IPostOperationEnabled) ? (IPostOperationEnabled) activePart : null;
  85
  86                 try {
  87                         AbstractPostOperation operation = new CreateConceptRelationOperation(event.getCommand().getName(),
  88                                         undoContext, taxon, relatedConcept, typeInverseContainer, postOperationEnabled);
  89                         AbstractUtility.executeOperation(operation);
  90                 } catch (NotDefinedException e) {
  91                         MessagingUtils.warn(getClass(), "Command name not set");
  92                 }
  93
  94                 return null;
  95         }
  96 }