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

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.scenegraph.ui;\r
  13 \r
  14 import org.eclipse.core.commands.AbstractHandler;\r
  15 import org.eclipse.core.commands.Command;\r
  16 import org.eclipse.core.commands.ExecutionEvent;\r
  17 import org.eclipse.core.commands.ExecutionException;\r
  18 import org.eclipse.core.commands.State;\r
  19 import org.eclipse.ui.IWorkbenchPart;\r
  20 import org.eclipse.ui.PlatformUI;\r
  21 import org.eclipse.ui.commands.ICommandService;\r
  22 import org.eclipse.ui.handlers.HandlerUtil;\r
  23 \r
  24 /**\r
  25  * @author Tuukka Lehtonen\r
  26  */\r
  27 public class LinkToActiveWorkbenchPartHandler extends AbstractHandler {\r
  28 \r
  29     static final String COMMAND = "org.simantics.scenegraph.linkToActiveWorkbenchPart";\r
  30     static final String STATE   = "org.simantics.scenegraph.linkToActiveWorkbenchPart.state";\r
  31 \r
  32     @Override\r
  33     public Object execute(ExecutionEvent event) throws ExecutionException {\r
  34         IWorkbenchPart part = HandlerUtil.getActivePart(event);\r
  35         if (part == null || !(part instanceof SceneGraphViewPart))\r
  36             return null;\r
  37         SceneGraphViewPart sg = (SceneGraphViewPart) part;\r
  38 \r
  39         ICommandService service = (ICommandService) PlatformUI.getWorkbench().getService(ICommandService.class);\r
  40         Command command = service.getCommand(COMMAND);\r
  41         State state = command.getState(STATE);\r
  42         Boolean value = (Boolean) state.getValue();\r
  43         value = !value;\r
  44         state.setValue(value);\r
  45 \r
  46         sg.linkToActiveWorkbenchPart(value);\r
  47 \r
  48         return null;\r
  49     }\r
  50 \r
  51 }\r