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

   1 package eu.etaxonomy.taxeditor.editor.key.polytomous.handler;
   2
   3 import org.eclipse.core.commands.AbstractHandler;
   4 import org.eclipse.core.commands.ExecutionEvent;
   5 import org.eclipse.core.commands.ExecutionException;
   6 import org.eclipse.core.commands.common.NotDefinedException;
   7 import org.eclipse.core.commands.operations.IUndoContext;
   8 import org.eclipse.jface.dialogs.MessageDialog;
   9 import org.eclipse.jface.viewers.IStructuredSelection;
  10 import org.eclipse.ui.IEditorPart;
  11 import org.eclipse.ui.handlers.HandlerUtil;
  12
  13 import eu.etaxonomy.cdm.model.description.PolytomousKeyNode;
  14 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  15 import eu.etaxonomy.taxeditor.editor.key.KeyEditor;
  16 import eu.etaxonomy.taxeditor.editor.key.polytomous.IPolytomousKeyEditorPage;
  17 import eu.etaxonomy.taxeditor.editor.key.polytomous.PolytomousKeyListEditor;
  18 import eu.etaxonomy.taxeditor.editor.key.polytomous.operation.CreateNodeOperation;
  19 import eu.etaxonomy.taxeditor.editor.key.polytomous.operation.RefreshNodeNumberingOperation;
  20 import eu.etaxonomy.taxeditor.model.MessagingUtils;
  21 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
  22
  23 public class RefreshNodeNumberingHandler extends AbstractHandler {
  24
  25         @Override
  26         public Object execute(ExecutionEvent event) throws ExecutionException {
  27                 IEditorPart editor = HandlerUtil.getActiveEditor(event);
  28
  29                 if (editor instanceof KeyEditor) {
  30                         IPolytomousKeyEditorPage editorPage = (IPolytomousKeyEditorPage) ((KeyEditor) editor)
  31                                         .getActiveEditor();
  32
  33                         if (editorPage instanceof PolytomousKeyListEditor) {
  34
  35                                 IStructuredSelection selection = (IStructuredSelection) HandlerUtil
  36                                                 .getCurrentSelection(event);
  37
  38                                 if (selection.getFirstElement() instanceof PolytomousKeyNode) {
  39                                         try {
  40                                                 String label = event.getCommand().getName();
  41                                                 IUndoContext undoContext = EditorUtil.getUndoContext();
  42
  43                                                 PolytomousKeyNode keyNode = (PolytomousKeyNode) selection
  44                                                                 .getFirstElement();
  45
  46                                                 AbstractPostOperation operation = new RefreshNodeNumberingOperation(
  47                                                                 label, undoContext, keyNode, editorPage);
  48                                                 EditorUtil.executeOperation(operation);
  49                                         } catch (NotDefinedException e) {
  50                                                 MessagingUtils.warn(getClass(), "Command name not set."); //$NON-NLS-1$
  51                                         }
  52                                 }
  53                         }
  54                 }
  55
  56                 return null;
  57         }
  58
  59 }