eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/key/polytomous/handler/InsertNewNodeHandler.java

   1 /**
   2 * Copyright (C) 2016 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.editor.key.polytomous.handler;
  10
  11 import org.eclipse.core.commands.ExecutionEvent;
  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.jface.viewers.IStructuredSelection;
  16 import org.eclipse.ui.IEditorPart;
  17 import org.eclipse.ui.handlers.HandlerUtil;
  18
  19 import eu.etaxonomy.cdm.model.description.PolytomousKey;
  20 import eu.etaxonomy.cdm.model.description.PolytomousKeyNode;
  21 import eu.etaxonomy.taxeditor.editor.key.KeyEditor;
  22 import eu.etaxonomy.taxeditor.editor.key.polytomous.IPolytomousKeyEditorPage;
  23 import eu.etaxonomy.taxeditor.editor.key.polytomous.PolytomousKeyEditorLabels;
  24 import eu.etaxonomy.taxeditor.editor.key.polytomous.PolytomousKeyListEditor;
  25 import eu.etaxonomy.taxeditor.editor.key.polytomous.operation.InsertPolytomousKeyNodeOperation;
  26
  27 /**
  28  * @author k.luther
  29  * @date 17.11.2016
  30  *
  31  */
  32 public class InsertNewNodeHandler extends AbstractPolytomousKeyNodeHandler{
  33
  34     private PolytomousKeyNode parentNode ;
  35
  36
  37     public InsertNewNodeHandler() {
  38         super(PolytomousKeyEditorLabels.INSERT_NODE_POLYTOMOUS_KEY_NODE_LABEL);
  39     }
  40
  41
  42     /**
  43      * {@inheritDoc}
  44      */
  45     @Override
  46     public IStatus allowOperations(ExecutionEvent event) {
  47         IEditorPart editor = HandlerUtil.getActiveEditor(event);
  48
  49         if (editor instanceof KeyEditor) {
  50             editorPage = (IPolytomousKeyEditorPage) ((KeyEditor) editor)
  51                     .getActiveEditor();
  52
  53             if (editorPage instanceof PolytomousKeyListEditor) {
  54                 PolytomousKeyListEditor klEditor = (PolytomousKeyListEditor) editorPage;
  55                 if(klEditor.getTableItemCount() == 0) {
  56                     PolytomousKey pk = klEditor.getViewerInputKey();
  57                     parentNode = pk.getRoot();
  58
  59                 } else {
  60                     IStructuredSelection selection = (IStructuredSelection) HandlerUtil.getCurrentSelection(event);
  61                     if (selection.getFirstElement() instanceof PolytomousKeyNode) {
  62                         parentNode = ((PolytomousKeyNode) selection.getFirstElement()).getParent();
  63                     } else {
  64                         return new Status(IStatus.ERROR,
  65                                 "unknown",
  66                                 PolytomousKeyEditorLabels.NO_KEY_NODE_FOR_CHILD_SELECTED_MESSAGE);
  67                     }
  68                 }
  69             }
  70         }
  71         return Status.OK_STATUS;
  72     }
  73
  74     /**
  75      * {@inheritDoc}
  76      */
  77     @Override
  78     public AbstractOperation prepareOperation(ExecutionEvent event) {
  79         return new InsertPolytomousKeyNodeOperation(event.getTrigger(), false, parentNode, editorPage);
  80     }
  81
  82     /**
  83      * {@inheritDoc}
  84      */
  85     @Override
  86     public void onComplete() {
  87         // TODO Auto-generated method stub
  88
  89     }
  90
  91 }