eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/key/polytomous/handler/CreateNodeHandler.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.viewers.IStructuredSelection;
  12 import org.eclipse.ui.IEditorPart;
  13 import org.eclipse.ui.handlers.HandlerUtil;
  14
  15 import eu.etaxonomy.cdm.model.description.PolytomousKeyNode;
  16 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  17 import eu.etaxonomy.taxeditor.editor.key.KeyEditor;
  18 import eu.etaxonomy.taxeditor.editor.key.polytomous.IPolytomousKeyEditorPage;
  19 import eu.etaxonomy.taxeditor.editor.key.polytomous.operation.CreateNodeOperation;
  20 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
  21
  22 /**
  23  * @author n.hoffmann
  24  *
  25  */
  26 public class CreateNodeHandler extends AbstractHandler {
  27
  28         /*
  29          * (non-Javadoc)
  30          *
  31          * @see
  32          * org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.
  33          * ExecutionEvent)
  34          */
  35         @Override
  36         public Object execute(ExecutionEvent event) throws ExecutionException {
  37
  38                 IEditorPart editor = HandlerUtil.getActiveEditor(event);
  39
  40                 if (editor instanceof KeyEditor) {
  41                         IPolytomousKeyEditorPage editorPage = (IPolytomousKeyEditorPage) ((KeyEditor) editor)
  42                                         .getActiveEditor();
  43
  44                         IStructuredSelection selection = (IStructuredSelection) HandlerUtil
  45                                         .getCurrentSelection(event);
  46
  47                         if (selection.getFirstElement() instanceof PolytomousKeyNode) {
  48                                 try {
  49                                         String label = event.getCommand().getName();
  50                                         IUndoContext undoContext = EditorUtil.getUndoContext();
  51
  52                                         PolytomousKeyNode keyNode = (PolytomousKeyNode) selection
  53                                                         .getFirstElement();
  54
  55                                         AbstractPostOperation operation = new CreateNodeOperation(
  56                                                         label, undoContext, keyNode, editorPage);
  57                                         EditorUtil.executeOperation(operation);
  58                                 } catch (NotDefinedException e) {
  59                                         EditorUtil.warn(getClass(), "Command name not set.");
  60                                 }
  61
  62                         }
  63                 }
  64
  65                 return null;
  66         }
  67
  68 }