gerrit.simantics Code Review - simantics/platform.git/blob

   1 package org.simantics.modeling.ui.modelBrowser2.contributions;
   2
   3 import java.util.Arrays;
   4 import java.util.Collection;
   5 import java.util.HashSet;
   6 import java.util.Map;
   7 import java.util.Set;
   8
   9 import org.eclipse.core.runtime.CoreException;
  10 import org.eclipse.core.runtime.IConfigurationElement;
  11 import org.eclipse.core.runtime.IExecutableExtension;
  12 import org.eclipse.jface.action.Action;
  13 import org.eclipse.jface.action.ActionContributionItem;
  14 import org.eclipse.jface.action.IContributionItem;
  15 import org.eclipse.jface.resource.ImageDescriptor;
  16 import org.simantics.db.ReadGraph;
  17 import org.simantics.db.Resource;
  18 import org.simantics.db.Session;
  19 import org.simantics.db.WriteGraph;
  20 import org.simantics.db.common.request.WriteRequest;
  21 import org.simantics.db.exception.DatabaseException;
  22 import org.simantics.modeling.ModelingResources;
  23 import org.simantics.modeling.requests.SetSubscriptionEnabled;
  24 import org.simantics.modeling.ui.Activator;
  25 import org.simantics.ui.SimanticsUI;
  26 import org.simantics.ui.contribution.DynamicMenuContribution;
  27 import org.simantics.ui.utils.ResourceAdaptionUtils;
  28
  29 /**
  30  * @author Tuukka Lehtonen
  31  */
  32 public class SetSubscriptionEnabledContribution extends DynamicMenuContribution implements IExecutableExtension {
  33
  34     String          name    = "";
  35     ImageDescriptor image   = null;
  36     boolean         include = true;
  37
  38     @Override
  39     public void setInitializationData(IConfigurationElement config, String propertyName, Object data)
  40     throws CoreException {
  41         if (data instanceof Map<?,?>) {
  42             @SuppressWarnings("unchecked")
  43             Map<String, String> args = (Map<String, String>) data;
  44             name = args.get("name");
  45             String imageId = args.get("image");
  46             image = Activator.getDefault().getImageRegistry().getDescriptor(imageId);
  47             include = Boolean.parseBoolean(args.get("include"));
  48         }
  49     }
  50
  51     private Collection<Resource> toSubscriptions(ReadGraph graph, Collection<Resource> resources) throws DatabaseException {
  52         ModelingResources mod = ModelingResources.getInstance(graph);
  53
  54         Set<Resource> result = new HashSet<Resource>(resources.size());
  55         for (Resource o : resources) {
  56             if (graph.isInstanceOf(o, mod.Subscription))
  57                 result.add(o);
  58         }
  59
  60         return result;
  61     }
  62
  63     @Override
  64     protected Object[] getSelectedObjects() {
  65         return ResourceAdaptionUtils.toResources(getSelection());
  66     }
  67
  68     @Override
  69     protected IContributionItem[] getContributionItems(ReadGraph graph, Object[] elements) throws DatabaseException {
  70         final Resource[] resources = (Resource[]) elements;
  71         if (resources.length == 0)
  72             return new IContributionItem[0];
  73
  74         // Are there any components in the selection whose inclusion state
  75         // is different from the argument 'included'?
  76         final Collection<Resource> subscriptions = toSubscriptions(graph, Arrays.asList(resources));
  77         if (subscriptions.isEmpty())
  78             return new IContributionItem[0];
  79
  80         ModelingResources mod = ModelingResources.getInstance(graph);
  81
  82         boolean foundNonMatchingEnableStates = false;
  83         for (Resource subscription : subscriptions) {
  84             Boolean isIncluded = graph.getPossibleRelatedValue(subscription, mod.Subscription_Enabled);
  85             if (isIncluded == null)
  86                 isIncluded = Boolean.TRUE;
  87             if (isIncluded != include)
  88                 foundNonMatchingEnableStates = true;
  89         }
  90         if (!foundNonMatchingEnableStates)
  91             return new IContributionItem[0];
  92
  93         return new IContributionItem[] {
  94                 new ActionContributionItem(new Action(name, image) {
  95                     @Override
  96                     public void run() {
  97                         Session session = SimanticsUI.peekSession();
  98                         if (session == null)
  99                             return;
 100
 101                         SimanticsUI.getSession().asyncRequest(new WriteRequest() {
 102                             @Override
 103                             public void perform(WriteGraph graph) throws DatabaseException {
 104                                 new SetSubscriptionEnabled(subscriptions, include).perform(graph);
 105                             }
 106                         });
 107                     }
 108                 })
 109         };
 110     }
 111
 112 }