eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/handler/defaultHandler/OpenReferencingObjectsViewHandler.java

   1 package eu.etaxonomy.taxeditor.handler.defaultHandler;
   2
   3 import java.util.UUID;
   4
   5 import javax.inject.Named;
   6
   7 import org.eclipse.e4.core.di.annotations.CanExecute;
   8 import org.eclipse.e4.core.di.annotations.Execute;
   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.e4.ui.workbench.modeling.EPartService;
  13 import org.eclipse.e4.ui.workbench.modeling.EPartService.PartState;
  14 import org.eclipse.jface.viewers.IStructuredSelection;
  15
  16 import eu.etaxonomy.cdm.model.common.CdmBase;
  17 import eu.etaxonomy.cdm.persistence.dto.UuidAndTitleCache;
  18 import eu.etaxonomy.taxeditor.bulkeditor.AppModelId;
  19 import eu.etaxonomy.taxeditor.editor.IReferencingObjectsView;
  20
  21 public class OpenReferencingObjectsViewHandler {
  22
  23     Object selectedObject;
  24     @Execute
  25     public void execute(EPartService partService) {
  26         MPart part = partService.createPart(AppModelId.PARTDESCRIPTOR_EU_ETAXONOMY_TAXEDITOR_BULKEDITOR_REFERENCINGOBJECTS_E4_REFERENCINGOBJECTSVIEWE4);
  27         part = partService.showPart(part, PartState.ACTIVATE);
  28         IReferencingObjectsView view = (IReferencingObjectsView)part.getObject();
  29         UUID uuid = null;
  30         Class clazz = null;
  31
  32         if (selectedObject instanceof IStructuredSelection){
  33             selectedObject = ((IStructuredSelection)selectedObject).getFirstElement();
  34         }
  35         if (selectedObject instanceof CdmBase){
  36             uuid = ((CdmBase)selectedObject).getUuid();
  37             clazz = selectedObject.getClass();
  38         } else if (selectedObject instanceof UuidAndTitleCache){
  39             uuid = ((UuidAndTitleCache)selectedObject).getUuid();
  40             clazz = ((UuidAndTitleCache)selectedObject).getType();
  41         }
  42         if (uuid != null && clazz != null){
  43             view.updateReferencingObjects(uuid, clazz);
  44         }
  45
  46
  47
  48     }
  49
  50     @CanExecute
  51     public boolean canExecute(EPartService partService,
  52             @Named(IServiceConstants.ACTIVE_PART)MPart activePart,
  53             MHandledMenuItem menuItem) {
  54         boolean canExecute = false;
  55         MPart part = partService.findPart(AppModelId.PARTDESCRIPTOR_EU_ETAXONOMY_TAXEDITOR_BULKEDITOR_REFERENCINGOBJECTS_E4_REFERENCINGOBJECTSVIEWE4);
  56         canExecute = !part.equals(activePart);
  57
  58
  59         if (canExecute){
  60             String commandId = menuItem.getCommand().getElementId();
  61             selectedObject = menuItem.getTransientData().get(commandId+".uuid");
  62             if (selectedObject instanceof IStructuredSelection){
  63                 canExecute = ((IStructuredSelection)selectedObject).size() == 1;
  64             }
  65         }
  66         menuItem.setVisible(canExecute);
  67         return canExecute;
  68     }
  69
  70 }