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

   1 /**
   2  *
   3  */
   4 package eu.etaxonomy.taxeditor.editor.key.polytomous.handler;
   5
   6 import org.eclipse.core.commands.AbstractHandler;
   7 import org.eclipse.core.commands.ExecutionEvent;
   8 import org.eclipse.core.commands.ExecutionException;
   9 import org.eclipse.core.commands.common.NotDefinedException;
  10 import org.eclipse.core.commands.operations.IUndoContext;
  11 import org.eclipse.jface.dialogs.MessageDialog;
  12 import org.eclipse.jface.viewers.IStructuredSelection;
  13 import org.eclipse.ui.IEditorPart;
  14 import org.eclipse.ui.handlers.HandlerUtil;
  15
  16 import eu.etaxonomy.cdm.model.description.PolytomousKey;
  17 import eu.etaxonomy.cdm.model.description.PolytomousKeyNode;
  18 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  19 import eu.etaxonomy.taxeditor.editor.key.KeyEditor;
  20 import eu.etaxonomy.taxeditor.editor.key.polytomous.IPolytomousKeyEditorPage;
  21 import eu.etaxonomy.taxeditor.editor.key.polytomous.PolytomousKeyListEditor;
  22 import eu.etaxonomy.taxeditor.editor.key.polytomous.operation.CreateNodeOperation;
  23 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
  24
  25 /**
  26  * @author n.hoffmann
  27  *
  28  */
  29 public class CreateChildNodeHandler extends AbstractHandler {
  30
  31         /*
  32          * (non-Javadoc)
  33          *
  34          * @see
  35          * org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.
  36          * ExecutionEvent)
  37          */
  38         @Override
  39         public Object execute(ExecutionEvent event) throws ExecutionException {
  40
  41             IEditorPart editor = HandlerUtil.getActiveEditor(event);
  42
  43             if (editor instanceof KeyEditor) {
  44                 IPolytomousKeyEditorPage editorPage = (IPolytomousKeyEditorPage) ((KeyEditor) editor)
  45                         .getActiveEditor();
  46
  47                 if (editorPage instanceof PolytomousKeyListEditor) {
  48                     PolytomousKeyListEditor klEditor = (PolytomousKeyListEditor) editorPage;
  49                     if(klEditor.getTableItemCount() == 0) {
  50                         PolytomousKey pk = (PolytomousKey)klEditor.getViewerInputKey();
  51                         try {
  52                             String label = event.getCommand().getName();
  53                             IUndoContext undoContext = EditorUtil.getUndoContext();
  54
  55
  56                             AbstractPostOperation operation = new CreateNodeOperation(
  57                                     label, undoContext, pk.getRoot(), editorPage);
  58                             EditorUtil.executeOperation(operation);
  59                         } catch (NotDefinedException e) {
  60                             EditorUtil.warn(getClass(), "Command name not set.");
  61                         }
  62                     } else {
  63
  64                         IStructuredSelection selection = (IStructuredSelection) HandlerUtil
  65                                 .getCurrentSelection(event);
  66
  67                         if (selection.getFirstElement() instanceof PolytomousKeyNode) {
  68                             try {
  69                                 String label = event.getCommand().getName();
  70                                 IUndoContext undoContext = EditorUtil.getUndoContext();
  71
  72                                 PolytomousKeyNode keyNode = (PolytomousKeyNode) selection
  73                                         .getFirstElement();
  74
  75                                 AbstractPostOperation operation = new CreateNodeOperation(
  76                                         label, undoContext, keyNode, editorPage);
  77                                 EditorUtil.executeOperation(operation);
  78                             } catch (NotDefinedException e) {
  79                                 EditorUtil.warn(getClass(), "Command name not set.");
  80                             }
  81                         } else {
  82                             MessageDialog.openInformation(
  83                                     EditorUtil.getShell(),
  84                                     "No Key Node Selected",
  85                                     "Please right-click on a specific key node to create a new child key node.");
  86                         }
  87                     }
  88                 }
  89             }
  90
  91                 return null;
  92         }
  93
  94 }