X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.browsing.ui.swt%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fswt%2FGraphExplorerImpl.java;h=817a8d961022934a251be2ad1086821a024b7b03;hb=refs%2Fchanges%2F92%2F2692%2F1;hp=62b284858cd9893383719e5ec7b89632437335f9;hpb=0ae2b770234dfc3cbb18bd38f324125cf0faca07;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/GraphExplorerImpl.java b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/GraphExplorerImpl.java
index 62b284858..817a8d961 100644
--- a/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/GraphExplorerImpl.java
+++ b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/GraphExplorerImpl.java
@@ -31,6 +31,7 @@ import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.concurrent.atomic.AtomicReference;
+import java.util.function.BiFunction;
 import java.util.function.Consumer;
 
 import org.eclipse.core.runtime.Assert;
@@ -113,6 +114,7 @@ import org.simantics.browsing.ui.PrimitiveQueryProcessor;
 import org.simantics.browsing.ui.SelectionDataResolver;
 import org.simantics.browsing.ui.SelectionFilter;
 import org.simantics.browsing.ui.StatePersistor;
+import org.simantics.browsing.ui.common.AdaptableHintContext;
 import org.simantics.browsing.ui.common.ColumnKeys;
 import org.simantics.browsing.ui.common.ErrorLogger;
 import org.simantics.browsing.ui.common.NodeContextBuilder;
@@ -161,7 +163,6 @@ import org.simantics.browsing.ui.swt.internal.Threads;
 import org.simantics.db.layer0.SelectionHints;
 import org.simantics.utils.ObjectUtils;
 import org.simantics.utils.datastructures.BijectionMap;
-import org.simantics.utils.datastructures.BinaryFunction;
 import org.simantics.utils.datastructures.disposable.AbstractDisposable;
 import org.simantics.utils.datastructures.hints.IHintContext;
 import org.simantics.utils.threads.IThreadWorkQueue;
@@ -544,10 +545,10 @@ class GraphExplorerImpl extends GraphExplorerImplBase implements Listener, Graph
     protected BasePostSelectionProvider          selectionProvider        = new BasePostSelectionProvider();
     protected SelectionDataResolver              selectionDataResolver;
     protected SelectionFilter                    selectionFilter;
-    protected BinaryFunction<Object[], GraphExplorer, Object[]>  selectionTransformation = new BinaryFunction<Object[], GraphExplorer, Object[]>() {
+    protected BiFunction<GraphExplorer, Object[], Object[]> selectionTransformation = new BiFunction<GraphExplorer, Object[], Object[]>() {
 
         @Override
-        public Object[] call(GraphExplorer explorer, Object[] objects) {
+        public Object[] apply(GraphExplorer explorer, Object[] objects) {
             Object[] result = new Object[objects.length];
             for (int i = 0; i < objects.length; i++) {
                 IHintContext context = new AdaptableHintContext(SelectionHints.KEY_MAIN);
@@ -1812,7 +1813,7 @@ class GraphExplorerImpl extends GraphExplorerImplBase implements Listener, Graph
     }
 
     @Override
-    public void setSelectionTransformation(BinaryFunction<Object[], GraphExplorer, Object[]> f) {
+    public void setSelectionTransformation(BiFunction<GraphExplorer, Object[], Object[]> f) {
         this.selectionTransformation = f;
     }
 
@@ -3117,7 +3118,10 @@ class GraphExplorerImpl extends GraphExplorerImplBase implements Listener, Graph
     	//System.out.println("NodeContext path : " + contexts);
 
     	NodeContext head = tryFind(contexts[position]);
-
+    	// tryFind may return null for positions, that actually have NodeContext. 
+    	if (head == null)
+    	    return false;
+    	
     	if(position == contexts.length-1) {
     		return select(head);
 
@@ -3168,7 +3172,7 @@ class GraphExplorerImpl extends GraphExplorerImplBase implements Listener, Graph
     }
 
     protected Object[] transformSelection(Object[] objects) {
-        return selectionTransformation.call(this, objects);
+        return selectionTransformation.apply(this, objects);
     }
 
     protected static Object[] filter(SelectionFilter filter, NodeContext[] contexts) {