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

   1 // $Id$
   2 /**
   3  * Copyright (C) 2015 EDIT
   4  * European Distributed Institute of Taxonomy
   5  * http://www.e-taxonomy.eu
   6  *
   7  * The contents of this file are subject to the Mozilla Public License Version 1.1
   8  * See LICENSE.TXT at the top of this package for the full license terms.
   9  */
  10 package eu.etaxonomy.taxeditor.navigation.navigator.handler;
  11
  12 import java.util.ArrayList;
  13 import java.util.List;
  14 import java.util.UUID;
  15
  16 import org.eclipse.core.commands.ExecutionEvent;
  17 import org.eclipse.core.commands.operations.AbstractOperation;
  18 import org.eclipse.core.runtime.IStatus;
  19 import org.eclipse.core.runtime.Status;
  20 import org.eclipse.jface.dialogs.MessageDialog;
  21 import org.eclipse.jface.viewers.TreeSelection;
  22 import org.eclipse.swt.widgets.Shell;
  23 import org.eclipse.ui.handlers.HandlerUtil;
  24
  25 import eu.etaxonomy.cdm.api.conversation.ConversationHolderMock;
  26 import eu.etaxonomy.cdm.model.taxon.TaxonNode;
  27 import eu.etaxonomy.taxeditor.navigation.NavigationUtil;
  28 import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigatorLabels;
  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.getUuid());
  89
  90         boolean moveToNewParent = true;
  91
  92         if (PreferencesUtil.getSortNodesNaturally()){
  93             if(!MessageDialog.openQuestion(activeShell, "Target node", "The choosen target node should be the parent?")){
  94                 moveToNewParent = false;
  95             }
  96             parentTaxonNode = TaxonNodeSelectionDialog.select(activeShell,
  97                     new ConversationHolderMock(),
  98                     "Choose the taxon above the moved taxon.",
  99                     excludeTaxa,
 100                     null,
 101                     null);
 102         } else {
 103             parentTaxonNode = TaxonNodeSelectionDialog.select(activeShell,
 104                     new ConversationHolderMock(),
 105                     "Choose new parent",
 106                     excludeTaxa,
 107                     null,
 108                     null);
 109         }
 110
 111
 112         if(parentTaxonNode != null){
 113             if(NavigationUtil.isDirty(parentTaxonNode)){
 114                 MessageDialog.openWarning(activeShell,
 115                         "Unsaved Parent Taxon",
 116                         "There are unsaved changes in the parent taxon. Please save first.");
 117                 return null;
 118             }
 119
 120             return new RemotingMoveTaxonOperation(event.getTrigger(),
 121                     false,
 122                     oldTaxonNode.getUuid(),
 123                     parentTaxonNode.getUuid(),
 124                     moveToNewParent);
 125         }
 126
 127         return null;
 128     }
 129
 130     /* (non-Javadoc)
 131      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#onComplete()
 132      */
 133     @Override
 134     public void onComplete() {
 135         // TODO Auto-generated method stub
 136
 137     }
 138
 139 }