bundles/org.simantics.scenegraph.ui/src/org/simantics/scenegraph/ui/LinkToActiveWorkbenchPartHandler.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 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  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.scenegraph.ui;
  13
  14 import org.eclipse.core.commands.AbstractHandler;
  15 import org.eclipse.core.commands.Command;
  16 import org.eclipse.core.commands.ExecutionEvent;
  17 import org.eclipse.core.commands.ExecutionException;
  18 import org.eclipse.core.commands.State;
  19 import org.eclipse.ui.IWorkbenchPart;
  20 import org.eclipse.ui.PlatformUI;
  21 import org.eclipse.ui.commands.ICommandService;
  22 import org.eclipse.ui.handlers.HandlerUtil;
  23
  24 /**
  25  * @author Tuukka Lehtonen
  26  */
  27 public class LinkToActiveWorkbenchPartHandler extends AbstractHandler {
  28
  29     static final String COMMAND = "org.simantics.scenegraph.linkToActiveWorkbenchPart";
  30     static final String STATE   = "org.simantics.scenegraph.linkToActiveWorkbenchPart.state";
  31
  32     @Override
  33     public Object execute(ExecutionEvent event) throws ExecutionException {
  34         IWorkbenchPart part = HandlerUtil.getActivePart(event);
  35         if (part == null || !(part instanceof SceneGraphViewPart))
  36             return null;
  37         SceneGraphViewPart sg = (SceneGraphViewPart) part;
  38
  39         ICommandService service = (ICommandService) PlatformUI.getWorkbench().getService(ICommandService.class);
  40         Command command = service.getCommand(COMMAND);
  41         State state = command.getState(STATE);
  42         Boolean value = (Boolean) state.getValue();
  43         value = !value;
  44         state.setValue(value);
  45
  46         sg.linkToActiveWorkbenchPart(value);
  47
  48         return null;
  49     }
  50
  51 }