eu.etaxonomy.taxeditor.navigation/src/main/java/eu/etaxonomy/taxeditor/navigation/navigator/handler/RemotingMoveTaxonNodeHandler.java

   1 /**
   2  * Copyright (C) 2015 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 package eu.etaxonomy.taxeditor.navigation.navigator.handler;
  10
  11 import java.util.ArrayList;
  12 import java.util.List;
  13 import java.util.UUID;
  14
  15 import org.eclipse.core.commands.ExecutionEvent;
  16 import org.eclipse.core.commands.operations.AbstractOperation;
  17 import org.eclipse.core.runtime.IStatus;
  18 import org.eclipse.core.runtime.Status;
  19 import org.eclipse.jface.dialogs.MessageDialog;
  20 import org.eclipse.jface.viewers.TreeSelection;
  21 import org.eclipse.swt.widgets.Shell;
  22 import org.eclipse.ui.handlers.HandlerUtil;
  23
  24 import eu.etaxonomy.cdm.api.conversation.ConversationHolderMock;
  25 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  26 import eu.etaxonomy.taxeditor.navigation.NavigationUtil;
  27 import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigatorLabels;
  28 import eu.etaxonomy.taxeditor.navigation.navigator.TreeNodeDropAdapter.MovingType;
  29 import eu.etaxonomy.taxeditor.navigation.navigator.operation.RemotingMoveTaxonOperation;
  30 import eu.etaxonomy.taxeditor.operation.RemotingCdmHandler;
  31 import eu.etaxonomy.taxeditor.preference.PreferencesUtil;
  32 import eu.etaxonomy.taxeditor.ui.dialog.selection.TaxonNodeSelectionDialog;
  33
  34 /**
  35  * @author cmathew
  36  * @date 19 Jun 2015
  37  *
  38  */
  39 public class RemotingMoveTaxonNodeHandler extends RemotingCdmHandler {
  40
  41     private TaxonNode oldTaxonNode;
  42
  43     public RemotingMoveTaxonNodeHandler() {
  44         super(TaxonNavigatorLabels.MOVE_TAXON_LABEL);
  45     }
  46
  47     /* (non-Javadoc)
  48      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#allowOperations(org.eclipse.core.commands.ExecutionEvent)
  49      */
  50     @Override
  51     public IStatus allowOperations(ExecutionEvent event) {
  52         TreeSelection selection = (TreeSelection) HandlerUtil.getCurrentSelection(event);
  53         // check that only a single taxon tree node has been selected
  54         if(selection.size() > 1) {
  55             return new Status(IStatus.ERROR,
  56                     "unknown",
  57                     TaxonNavigatorLabels.SINGLE_TAXON_SELECTION_MESSAGE);
  58         }
  59
  60         // check for no taxon tree node selected
  61         if(selection.size() == 0) {
  62             return new Status(IStatus.ERROR,
  63                     "unknown",
  64                     TaxonNavigatorLabels.NO_TAXON_SELECTION_MESSAGE);
  65         }
  66         // check that selected object is a taxon node
  67         Object obj = selection.iterator().next();
  68         if(obj instanceof TaxonNode) {
  69             oldTaxonNode = (TaxonNode)obj;
  70         } else {
  71             return new Status(IStatus.ERROR,
  72                     "unknown",
  73                     TaxonNavigatorLabels.SELECTED_OBJECT_NOT_TREE_NODE_MESSAGE);
  74         }
  75         return Status.OK_STATUS;
  76     }
  77
  78
  79     /* (non-Javadoc)
  80      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#prepareOperation(org.eclipse.core.commands.ExecutionEvent)
  81      */
  82     @Override
  83     public AbstractOperation prepareOperation(ExecutionEvent event) {
  84         Shell activeShell = HandlerUtil.getActiveShell(event);
  85         TaxonNode parentTaxonNode;
  86
  87         List<UUID> excludeTaxa = new ArrayList<UUID>();
  88         excludeTaxa.add(oldTaxonNode.getTaxon().getUuid());
  89
  90         MovingType moveToNewParent = MovingType.CHILD;
  91
  92         if (PreferencesUtil.getSortNodesNaturally()){
  93
  94
  95             parentTaxonNode = TaxonNodeSelectionDialog.select(activeShell,
  96                     new ConversationHolderMock(),
  97                     "Choose the taxon above the moved taxon.",
  98                     excludeTaxa,
  99                     null,
 100                     oldTaxonNode.getClassification());
 101             String[] buttonLables = {"Child", "Behind","Cancel"};
 102             MessageDialog dialog = new MessageDialog(null, "Target node", null, "Do you want to move the Taxonnode as child or behind the target node.", MessageDialog.QUESTION_WITH_CANCEL, buttonLables, 0);
 103             dialog.open();
 104             int returnCode = dialog.getReturnCode();
 105             if (returnCode == 0){
 106                 moveToNewParent = MovingType.CHILD;
 107             } else if (returnCode == 1){
 108                 moveToNewParent = MovingType.BEHIND;
 109             }
 110         } else {
 111             parentTaxonNode = TaxonNodeSelectionDialog.select(activeShell,
 112                     new ConversationHolderMock(),
 113                     "Choose new parent",
 114                     excludeTaxa,
 115                     null,
 116                     oldTaxonNode.getClassification());
 117         }
 118
 119
 120         if(parentTaxonNode != null){
 121             if(NavigationUtil.isDirty(parentTaxonNode)){
 122                 MessageDialog.openWarning(activeShell,
 123                         "Unsaved Parent Taxon",
 124                         "There are unsaved changes in the parent taxon. Please save first.");
 125                 return null;
 126             }
 127
 128             return new RemotingMoveTaxonOperation(event.getTrigger(),
 129                     false,
 130                     oldTaxonNode.getUuid(),
 131                     parentTaxonNode.getUuid(),
 132                     moveToNewParent);
 133         }
 134
 135         return null;
 136     }
 137
 138     /* (non-Javadoc)
 139      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#onComplete()
 140      */
 141     @Override
 142     public void onComplete() {
 143         // TODO Auto-generated method stub
 144
 145     }
 146
 147 }