bundles/org.simantics.simulation.ui/src/org/simantics/simulation/ui/ExperimentManagerListener.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2019 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  *     Semantum Oy - gitlab #384
  12  *******************************************************************************/
  13 package org.simantics.simulation.ui;
  14
  15 import java.util.ArrayList;
  16 import java.util.Collection;
  17 import java.util.HashSet;
  18 import java.util.Set;
  19
  20 import org.eclipse.ui.IWorkbench;
  21 import org.eclipse.ui.PlatformUI;
  22 import org.eclipse.ui.contexts.IContextActivation;
  23 import org.eclipse.ui.contexts.IContextService;
  24 import org.simantics.simulation.experiment.IDynamicExperiment;
  25 import org.simantics.simulation.experiment.IExperiment;
  26 import org.simantics.simulation.project.IExperimentManager;
  27 import org.simantics.simulation.project.IExperimentManagerListener;
  28
  29 public class ExperimentManagerListener implements IExperimentManagerListener {
  30
  31     public static final String     EXPERIMENT_CONTEXT         = "org.simantics.simulation.ui.experiment";
  32     public static final String     DYNAMIC_EXPERIMENT_CONTEXT = "org.simantics.simulation.ui.dynamicExperiment";
  33
  34     static Set<IExperimentManager> managers =
  35         new HashSet<IExperimentManager>();
  36
  37     IExperimentManager manager;
  38
  39     Collection<IContextActivation> contextActivations =
  40         new ArrayList<IContextActivation>();
  41
  42     public ExperimentManagerListener(IExperimentManager manager) {
  43         this.manager = manager;
  44     }
  45
  46     public static void listenManager(IExperimentManager manager) {
  47         synchronized(managers) {
  48             if(managers.contains(manager))
  49                 return;
  50             ExperimentManagerListener listener =
  51                 new ExperimentManagerListener(manager);
  52             manager.addListener(listener);
  53             managers.add(manager);
  54         }
  55     }
  56
  57     @Override
  58     public void activeExperimentLoaded(final IExperiment experiment) {
  59         if (!PlatformUI.isWorkbenchRunning())
  60             return;
  61
  62         experiment.addListener(new org.simantics.simulation.ui.e4.ExperimentListener());
  63
  64         final IWorkbench workbench = PlatformUI.getWorkbench();
  65         workbench.getDisplay().asyncExec(new Runnable() {
  66             @Override
  67             public void run() {
  68                 if (workbench.isClosing())
  69                     return;
  70                 IContextService contextService =
  71                     (IContextService)PlatformUI.getWorkbench()
  72                     .getService(IContextService.class);
  73                 synchronized(contextActivations) {
  74                     contextActivations.add(contextService.activateContext(EXPERIMENT_CONTEXT));
  75                     if(experiment instanceof IDynamicExperiment)
  76                         contextActivations.add(contextService.activateContext(DYNAMIC_EXPERIMENT_CONTEXT));
  77                 }
  78             }
  79         });
  80     }
  81
  82     @Override
  83     public void activeExperimentUnloaded() {
  84         synchronized(contextActivations) {
  85             final Collection<IContextActivation> oldContextActivations =
  86                 contextActivations;
  87
  88             contextActivations = new ArrayList<IContextActivation>();
  89
  90             if (!PlatformUI.isWorkbenchRunning())
  91                 return;
  92
  93             final IWorkbench workbench = PlatformUI.getWorkbench();
  94             workbench.getDisplay().asyncExec(new Runnable() {
  95                 @Override
  96                 public void run() {
  97                     if (workbench.isClosing())
  98                         return;
  99
 100                     IContextService contextService =
 101                         (IContextService)workbench.getService(IContextService.class);
 102                     contextService.deactivateContexts(oldContextActivations);
 103                 }
 104             });
 105         }
 106     }
 107
 108     @Override
 109     public void managerDisposed() {
 110         synchronized(managers) {
 111             manager.removeListener(this);
 112             managers.remove(manager);
 113         }
 114     }
 115
 116 }