eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/featuretree/e4/handler/PasteFeatureHandler.java

   1
   2 package eu.etaxonomy.taxeditor.featuretree.e4.handler;
   3
   4 import javax.inject.Named;
   5
   6 import org.eclipse.e4.core.di.annotations.CanExecute;
   7 import org.eclipse.e4.core.di.annotations.Execute;
   8 import org.eclipse.e4.core.di.annotations.Optional;
   9 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  10 import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
  11 import org.eclipse.e4.ui.services.IServiceConstants;
  12 import org.eclipse.jface.util.LocalSelectionTransfer;
  13 import org.eclipse.jface.viewers.ISelection;
  14 import org.eclipse.jface.viewers.IStructuredSelection;
  15
  16 import eu.etaxonomy.cdm.persistence.dto.TermNodeDto;
  17 import eu.etaxonomy.taxeditor.featuretree.e4.TermTreeEditor;
  18
  19 public class PasteFeatureHandler {
  20
  21     @Execute
  22     public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart part,
  23             @Named(IServiceConstants.ACTIVE_SELECTION) IStructuredSelection selection){
  24         TermTreeEditor editor = (TermTreeEditor)part.getObject();
  25         editor.paste(selection);
  26     }
  27
  28     @CanExecute
  29     public boolean canExecute(@Optional @Named(IServiceConstants.ACTIVE_SELECTION) IStructuredSelection selection,
  30             @Named(IServiceConstants.ACTIVE_PART) MPart part,
  31             MHandledMenuItem menuItem){
  32         boolean canExecute = false;
  33         ISelection transferSelection = LocalSelectionTransfer.getTransfer().getSelection();
  34         canExecute = part.getObject() instanceof TermTreeEditor
  35                 && selection!=null
  36                 && selection.size()==1
  37                 && transferSelection instanceof IStructuredSelection
  38                 && ((IStructuredSelection)transferSelection).size()==1
  39                 && ((IStructuredSelection)transferSelection).getFirstElement() instanceof TermNodeDto;
  40         menuItem.setVisible(canExecute);
  41         return canExecute;
  42     }
  43
  44 }