eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/key/polytomous/handler/RemotingCreateChildPolytomousKeyNodeHandler.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.editor.key.polytomous.handler;
  11
  12 import org.eclipse.core.commands.ExecutionEvent;
  13 import org.eclipse.core.commands.operations.AbstractOperation;
  14 import org.eclipse.core.runtime.IStatus;
  15 import org.eclipse.core.runtime.Status;
  16 import org.eclipse.jface.viewers.IStructuredSelection;
  17 import org.eclipse.ui.IEditorPart;
  18 import org.eclipse.ui.handlers.HandlerUtil;
  19
  20 import eu.etaxonomy.cdm.model.description.PolytomousKey;
  21 import eu.etaxonomy.cdm.model.description.PolytomousKeyNode;
  22 import eu.etaxonomy.taxeditor.editor.key.KeyEditor;
  23 import eu.etaxonomy.taxeditor.editor.key.polytomous.IPolytomousKeyEditorPage;
  24 import eu.etaxonomy.taxeditor.editor.key.polytomous.PolytomousKeyEditorLabels;
  25 import eu.etaxonomy.taxeditor.editor.key.polytomous.PolytomousKeyListEditor;
  26 import eu.etaxonomy.taxeditor.editor.key.polytomous.operation.RemotingCreatePolytomousKeyNodeOperation;
  27 import eu.etaxonomy.taxeditor.operation.RemotingCdmHandler;
  28
  29 /**
  30  * @author cmathew
  31  * @date 21 Jul 2015
  32  *
  33  */
  34 public class RemotingCreateChildPolytomousKeyNodeHandler extends RemotingCdmHandler {
  35
  36     private PolytomousKeyNode parentNode;
  37
  38     public RemotingCreateChildPolytomousKeyNodeHandler() {
  39         super(PolytomousKeyEditorLabels.CREATE_CHILD_POLYTOMOUS_KEY_NODE_LABEL);
  40     }
  41     /* (non-Javadoc)
  42      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#allowOperations(org.eclipse.core.commands.ExecutionEvent)
  43      */
  44     @Override
  45     public IStatus allowOperations(ExecutionEvent event) {
  46         IEditorPart editor = HandlerUtil.getActiveEditor(event);
  47
  48         if (editor instanceof KeyEditor) {
  49             IPolytomousKeyEditorPage editorPage = (IPolytomousKeyEditorPage) ((KeyEditor) editor)
  50                     .getActiveEditor();
  51
  52             if (editorPage instanceof PolytomousKeyListEditor) {
  53                 PolytomousKeyListEditor klEditor = (PolytomousKeyListEditor) editorPage;
  54                 if(klEditor.getTableItemCount() == 0) {
  55                     PolytomousKey pk = klEditor.getViewerInputKey();
  56                     parentNode = pk.getRoot();
  57
  58                 } else {
  59                     IStructuredSelection selection = (IStructuredSelection) HandlerUtil.getCurrentSelection(event);
  60                     if (selection.getFirstElement() instanceof PolytomousKeyNode) {
  61                         parentNode = (PolytomousKeyNode) selection.getFirstElement();
  62                     } else {
  63                         return new Status(IStatus.ERROR,
  64                                 "unknown",
  65                                 PolytomousKeyEditorLabels.NO_KEY_NODE_FOR_CHILD_SELECTED_MESSAGE);
  66                     }
  67                 }
  68             }
  69         }
  70         return Status.OK_STATUS;
  71     }
  72
  73     /* (non-Javadoc)
  74      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#prepareOperation(org.eclipse.core.commands.ExecutionEvent)
  75      */
  76     @Override
  77     public AbstractOperation prepareOperation(ExecutionEvent event) {
  78         return new RemotingCreatePolytomousKeyNodeOperation(event.getTrigger(), false, parentNode);
  79     }
  80
  81     /* (non-Javadoc)
  82      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#onComplete()
  83      */
  84     @Override
  85     public void onComplete() {
  86         // TODO Auto-generated method stub
  87
  88     }
  89
  90 }