bundles/org.simantics.modeling/src/org/simantics/modeling/actions/Help.java

   1 /*******************************************************************************
   2  * Copyright (c) 2016 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.actions;
  13
  14 import org.eclipse.ui.PlatformUI;
  15 import org.simantics.Simantics;
  16 import org.simantics.databoard.Bindings;
  17 import org.simantics.db.Resource;
  18 import org.simantics.db.common.primitiverequest.PossibleRelatedValue2;
  19 import org.simantics.db.exception.DatabaseException;
  20 import org.simantics.db.layer0.adapter.ActionFactory;
  21 import org.simantics.modeling.ModelingResources;
  22 import org.slf4j.Logger;
  23 import org.slf4j.LoggerFactory;
  24
  25 public class Help implements ActionFactory {
  26
  27         private static final Logger LOGGER = LoggerFactory.getLogger(Help.class);
  28
  29         @Override
  30         public Runnable create(Object target) {
  31                 if (!(target instanceof Resource))
  32                         return null;
  33
  34                 final Resource resource = (Resource) target;
  35
  36                 return () -> {
  37                         try {
  38                                 ModelingResources MOD = ModelingResources.getInstance(Simantics.getSession());
  39                                 String id = Simantics.sync(new PossibleRelatedValue2<String>(resource, MOD.contextualHelpId, Bindings.STRING));
  40                                 if (id == null) {
  41                                         PlatformUI.getWorkbench().getHelpSystem().displayDynamicHelp();
  42                                         return;
  43                                 }
  44                                 PlatformUI.getWorkbench().getHelpSystem().displayHelp(id);
  45                         } catch (DatabaseException e) {
  46                                 LOGGER.error("Failed to display help for resource {}", resource, e);
  47                         }
  48                 };
  49         }
  50
  51 }