org.simantics.district.selection.ui/src/org/simantics/district/selection/ui/handlers/PerformSelectionQueryHandler.java

   1 package org.simantics.district.selection.ui.handlers;
   2
   3 import javax.inject.Inject;
   4
   5 import org.eclipse.e4.core.contexts.IEclipseContext;
   6 import org.eclipse.e4.core.di.annotations.CanExecute;
   7 import org.eclipse.e4.core.di.annotations.Execute;
   8 import org.eclipse.e4.ui.model.application.ui.basic.MPart;
   9 import org.eclipse.e4.ui.workbench.IWorkbench;
  10 import org.eclipse.e4.ui.workbench.modeling.EPartService;
  11 import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
  12 import org.eclipse.swt.widgets.Display;
  13 import org.simantics.district.selection.ElementSelector;
  14 import org.simantics.district.selection.ui.parts.ElementSelectionView;
  15
  16 public class PerformSelectionQueryHandler {
  17
  18         @Inject
  19         EPartService partService;
  20
  21         @CanExecute
  22         public boolean canExecute(ESelectionService selectionService) {
  23                 MPart part = partService.getActivePart();
  24                 if (part == null) return false;
  25
  26                 Object object = part.getObject();
  27                 if (object == null || !(object instanceof ElementSelectionView))
  28                         return false;
  29
  30                 ElementSelectionView view = (ElementSelectionView)object;
  31                 return view.getSelectedItem() != null;
  32         }
  33
  34         @Execute
  35         public void performElementSelection(IEclipseContext context, IWorkbench workbench) {
  36                 MPart part = partService.getActivePart();
  37                 if (part == null) return;
  38
  39                 Object object = part.getObject();
  40                 if (object == null || !(object instanceof ElementSelectionView))
  41                         return;
  42
  43                 ElementSelectionView view = (ElementSelectionView)object;
  44                 ElementSelector selectedItem = view.getSelectedItem();
  45
  46                 Display display = context.getActive(Display.class);
  47                 view.performSelection(display, selectedItem);
  48         }
  49 }