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
  28 /**
  29  * @author cmathew
  30  * @date 21 Jul 2015
  31  *
  32  */
  33 public class RemotingCreateChildPolytomousKeyNodeHandler extends AbstractPolytomousKeyNodeHandler {
  34
  35     private PolytomousKeyNode parentNode;
  36     IPolytomousKeyEditorPage editorPage;
  37
  38
  39     public RemotingCreateChildPolytomousKeyNodeHandler() {
  40         super(PolytomousKeyEditorLabels.CREATE_CHILD_POLYTOMOUS_KEY_NODE_LABEL);
  41     }
  42     /* (non-Javadoc)
  43      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#allowOperations(org.eclipse.core.commands.ExecutionEvent)
  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();
  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     /* (non-Javadoc)
  75      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#prepareOperation(org.eclipse.core.commands.ExecutionEvent)
  76      */
  77     @Override
  78     public AbstractOperation prepareOperation(ExecutionEvent event) {
  79         return new RemotingCreatePolytomousKeyNodeOperation(event.getTrigger(), false, parentNode, editorPage);
  80     }
  81
  82     /* (non-Javadoc)
  83      * @see eu.etaxonomy.taxeditor.operation.RemotingCdmHandler#onComplete()
  84      */
  85     @Override
  86     public void onComplete() {
  87
  88
  89     }
  90
  91
  92
  93 }