bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/actions/ExplorerDynamicMenuContribution.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.modeling.ui.actions;\r
  13 \r
  14 import org.eclipse.core.runtime.Platform;\r
  15 import org.eclipse.jface.action.Action;\r
  16 import org.eclipse.jface.action.ActionContributionItem;\r
  17 import org.eclipse.jface.action.IContributionItem;\r
  18 import org.eclipse.jface.resource.ImageDescriptor;\r
  19 import org.simantics.db.ReadGraph;\r
  20 import org.simantics.db.Session;\r
  21 import org.simantics.db.exception.DatabaseException;\r
  22 import org.simantics.ui.contribution.DynamicMenuContribution;\r
  23 import org.simantics.utils.ui.BundleUtils;\r
  24 \r
  25 \r
  26 /**\r
  27  * @author Antti Villberg\r
  28  */\r
  29 abstract public class ExplorerDynamicMenuContribution<T> extends DynamicMenuContribution {\r
  30 \r
  31         private static final IContributionItem[] NONE = {};\r
  32 \r
  33         @Override\r
  34         protected IContributionItem[] getContributionItems(ReadGraph graph, Object[] selection) throws DatabaseException {\r
  35 \r
  36                 T input = computeInput(graph, selection);\r
  37 \r
  38                 if(input == null) return NONE;\r
  39 \r
  40                 return new IContributionItem[] {\r
  41                                 new ActionContributionItem(new Helper(graph, input))\r
  42                 };\r
  43 \r
  44         }\r
  45 \r
  46         public class Helper extends Action {\r
  47 \r
  48                 private final T input;\r
  49                 protected final Session        session;\r
  50 \r
  51                 public Helper(ReadGraph graph, T input) throws DatabaseException {\r
  52                         super(getName(graph, input), getImage(graph, input));\r
  53                         this.session = graph.getSession();\r
  54                         this.input = input;\r
  55                 }\r
  56 \r
  57                 @Override\r
  58                 public void run() {\r
  59                         perform(session, input);\r
  60                 }\r
  61 \r
  62         }\r
  63 \r
  64         protected ImageDescriptor silk(String name) {\r
  65                 return BundleUtils.getImageDescriptorFromBundle(Platform.getBundle("com.famfamfam.silk"), "/icons/" + name);\r
  66         }\r
  67 \r
  68         abstract protected T computeInput(ReadGraph graph, Object[] selection) throws DatabaseException;\r
  69         abstract protected void perform(Session session, T input);\r
  70         abstract protected String getName(ReadGraph graph, T input) throws DatabaseException ;\r
  71         abstract protected ImageDescriptor getImage(ReadGraph graph, T input) throws DatabaseException;\r
  72 \r
  73 }\r