bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/handlers/DisconnectFlagHandler.java

   1 /*******************************************************************************
   2  * Copyright (c) 2015 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     Semantum Oy - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.modeling.ui.diagramEditor.handlers;
  13
  14 import java.util.ArrayList;
  15 import java.util.Set;
  16
  17 import org.eclipse.core.commands.AbstractHandler;
  18 import org.eclipse.core.commands.ExecutionEvent;
  19 import org.eclipse.core.commands.ExecutionException;
  20 import org.eclipse.core.runtime.IProgressMonitor;
  21 import org.eclipse.core.runtime.IStatus;
  22 import org.eclipse.core.runtime.Status;
  23 import org.eclipse.core.runtime.jobs.Job;
  24 import org.eclipse.jface.viewers.ISelection;
  25 import org.eclipse.ui.handlers.HandlerUtil;
  26 import org.simantics.DatabaseJob;
  27 import org.simantics.db.Resource;
  28 import org.simantics.db.WriteGraph;
  29 import org.simantics.db.common.request.WriteRequest;
  30 import org.simantics.db.exception.DatabaseException;
  31 import org.simantics.modeling.actions.DisconnectFlag;
  32 import org.simantics.modeling.ui.Activator;
  33 import org.simantics.ui.SimanticsUI;
  34 import org.simantics.utils.ui.ISelectionUtils;
  35
  36 /**
  37  * @author Tuukka Lehtonen
  38  */
  39 public class DisconnectFlagHandler extends AbstractHandler {
  40
  41     @Override
  42     public Object execute(ExecutionEvent event) throws ExecutionException {
  43         ISelection sel = HandlerUtil.getCurrentSelection(event);
  44         final Set<Resource> resources = ISelectionUtils.filterSetSelection(sel, Resource.class);
  45         if (resources.isEmpty())
  46             return null;
  47
  48         Job job = new DatabaseJob("Disconnect Flags") {
  49             @Override
  50             protected IStatus run(IProgressMonitor monitor) {
  51                 try {
  52                     SimanticsUI.getSession().syncRequest(new WriteRequest() {
  53                         @Override
  54                         public void perform(WriteGraph graph) throws DatabaseException {
  55                             graph.markUndoPoint();
  56                             DisconnectFlag.disconnectFlags(graph, new ArrayList<>(resources));
  57                         }
  58                     });
  59                     return Status.OK_STATUS;
  60                 } catch (DatabaseException e) {
  61                     return new Status(IStatus.ERROR, Activator.PLUGIN_ID, "Failed to disconnect flags.", e);
  62                 }
  63             }
  64         };
  65         job.schedule();
  66         return null;
  67     }
  68
  69 }