eu.etaxonomy.taxeditor.editor/src/main/java/eu/etaxonomy/taxeditor/editor/view/media/handler/CreateMediaHandler.java

   1 /**
   2  *
   3  */
   4 package eu.etaxonomy.taxeditor.editor.view.media.handler;
   5
   6 import javax.inject.Named;
   7
   8 import org.eclipse.e4.core.di.annotations.CanExecute;
   9 import org.eclipse.e4.core.di.annotations.Execute;
  10 import org.eclipse.e4.core.di.annotations.Optional;
  11 import org.eclipse.e4.ui.di.UISynchronize;
  12 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
  13 import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
  14 import org.eclipse.e4.ui.model.application.ui.menu.MMenuItem;
  15 import org.eclipse.e4.ui.services.IServiceConstants;
  16 import org.eclipse.jface.viewers.IStructuredSelection;
  17
  18 import eu.etaxonomy.cdm.model.description.DescriptionBase;
  19 import eu.etaxonomy.taxeditor.editor.EditorUtil;
  20 import eu.etaxonomy.taxeditor.editor.view.media.e4.MediaViewPartE4;
  21 import eu.etaxonomy.taxeditor.editor.view.media.operation.AddMediaToImageGalleryOperation;
  22 import eu.etaxonomy.taxeditor.model.AbstractUtility;
  23 import eu.etaxonomy.taxeditor.operation.AbstractPostOperation;
  24
  25 /**
  26  *
  27  * @author pplitzner
  28  * @since Aug 14, 2017
  29  *
  30  */
  31 public class CreateMediaHandler {
  32
  33     @Execute
  34     public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart activePart,
  35             @Optional@Named(IServiceConstants.ACTIVE_SELECTION) IStructuredSelection selection, MMenuItem menuItem,
  36             UISynchronize sync) {
  37
  38         MediaViewPartE4 mediaView = (MediaViewPartE4) activePart.getObject();
  39
  40         AbstractPostOperation operation = null;
  41         // TODO use undo context specific to editor
  42         operation = new AddMediaToImageGalleryOperation(menuItem.getLocalizedLabel(),
  43                 EditorUtil.getUndoContext(), (DescriptionBase<?>) selection.getFirstElement(), mediaView);
  44         AbstractUtility.executeOperation(operation, sync);
  45         }
  46
  47     @CanExecute
  48     private boolean canExecute(MHandledMenuItem menuItem,
  49             @Optional@Named(IServiceConstants.ACTIVE_SELECTION) IStructuredSelection selection){
  50         boolean canExecute = false;
  51         canExecute = selection.size()==1 && selection.getFirstElement() instanceof DescriptionBase;
  52         menuItem.setVisible(canExecute);
  53         return canExecute;
  54     }
  55
  56 }