How to get node actions to display in IconView - netbeans

Question

In my Netbeans Platform project I have a TopComponent with an IconView element, but when I add a NodeAction to the nodes it wont display. Right-clicking the nodes does not pop up a context menu. How do I get the action to display? This is what I have:
public class ItemDeleteAction extends NodeAction
{
⋮
#Override
protected boolean enable(Node[] nodes)
{
for (int i = 0; i < nodes.length; i++) {
Node node = nodes[i];
if (node instanceof ViewerItemNode) return true;
}
return false;
}
⋮
}
public final class JFlavourViewerTopComponent extends TopComponent implements ExplorerManager.Provider
{
public JFlavourViewerTopComponent()
{
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setLayout(new BorderLayout());
add(new IconView(), BorderLayout.CENTER);
ActionMap actionMap = getActionMap();
actionMap.put("delete", new ItemDeleteAction());
associateLookup(ExplorerUtils.createLookup(explorerManager, actionMap));
}
}
public class ViewerItemNode extends AbstractNode
{
private ViewerItem item;
public ViewerItemNode(ViewerItem item, JFlavourProjectBean activeProject)
{
super (Children.LEAF, Lookups.singleton(item));
this.item = item;
setDisplayName (item.item.getLabel());
}
#Override
public Action[] getActions(boolean context)
{
if (!context) {
return new Action[]
{
SystemAction.get( ItemDeleteAction.class )
};
} else {
return super.getActions(context);
}
}
#Override
public Action getPreferredAction()
{
return SystemAction.get(PlayAudioAction.class);
}
}
I think that's all the relevant code.
I do the same thing in another TopComponent in another module and it works fine, but in that module the nodes are displayed as a BeanTreeView instead of an IconView

Answer 1

Try to remove the context condition:
#Override
public Action[] getActions(boolean context)
{
return new Action[] {
SystemAction.get(ItemDeleteAction.class)
};
}