bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/actions/AssignSymbolGroupsHandler.java

   1 package org.simantics.modeling.ui.actions;
   2
   3 import java.util.Collection;
   4
   5 import org.eclipse.core.commands.AbstractHandler;
   6 import org.eclipse.core.commands.ExecutionEvent;
   7 import org.eclipse.core.commands.ExecutionException;
   8 import org.eclipse.jface.viewers.ISelection;
   9 import org.eclipse.jface.viewers.IStructuredSelection;
  10 import org.eclipse.ui.handlers.HandlerUtil;
  11 import org.simantics.db.Resource;
  12 import org.simantics.db.layer0.SelectionHints;
  13 import org.simantics.db.layer0.adapter.ActionFactory;
  14 import org.simantics.utils.ui.ISelectionUtils;
  15
  16 /**
  17  * This class exists as a org.eclipse.ui.handler extension point counterpart for
  18  * AssignSymbolGroup ActionFactory due to lack of multi-selection support in the
  19  * modeled {@link ActionFactory} contributions.
  20  *
  21  * @author Tuukka Lehtonen <tuukka.lehtonen@semantum.fi>
  22  */
  23 public class AssignSymbolGroupsHandler extends AbstractHandler {
  24
  25         public static Object handleStatic(Collection<Resource> res) throws ExecutionException {
  26                 return executeImpl(res);
  27         }
  28
  29         @Override
  30         public Object execute(ExecutionEvent event) throws ExecutionException {
  31                 ISelection s = HandlerUtil.getCurrentSelection(event);
  32                 if (!(s instanceof IStructuredSelection))
  33                         return null;
  34
  35                 Collection<Resource> res = ISelectionUtils.getPossibleKeys(s, SelectionHints.KEY_MAIN, Resource.class);
  36                 return executeImpl(res);
  37         }
  38
  39         private static Object executeImpl(Collection<Resource> res) throws ExecutionException {
  40                 if (!res.isEmpty())
  41                         new AssignSymbolGroup().assignGroups(res);
  42                 return null;
  43         }
  44
  45 }