docs: public Context getSelectedContext() {
  		SiteNode node = (SiteNode) treeContext.getLastSelectedPathComponent();
  		if (node == null || node.isRoot()) {
  			return null;
  		}
  		Target target = (Target) node.getUserObject();
  		if (target != null) {
  			return target.getContext();
  		}
  		return null;
  	}