One question I see occasionally is people asking how to go about using prebuilt cell factories (such as those provided in the DataFX project run by Johan Vos and I, those sitting in the OpenJFX 2.2 repo in the javafx.scene.control.cell package, or just those that they have created internally), and also show a context menu when the user right clicks. More generally, the problem is that cell factories are blackboxes, and there is no support for chaining cell factories together (or even getting hold of the cells as they are being used).
The answer is quite simple: wrap the cell factory inside another cell factory, and set the ContextMenu on the wrapping cell. In other words, you would write code such as this (for ListView):
// The cell factory you actually want to use to render the cell
Callback<ListView<T>, ListCell<T> wrappedCellFactory = ...;
// The wrapping cell factory that will set the context menu onto the wrapped cell
Callback<ListView<T>, ListCell<T> cellFactory = new Callback<ListView<T>, ListCell<T>>() {
@Override public ListCell<T> call(ListView<T> listView) {
ListCell<T> cell = cellFactory == null ? new DefaultListCell<T>() : wrappedCellFactory.call(listView);
cell.setContextMenu(contextMenu);
return cell;
}
};
// Creating a ListView and setting the cell factory on it
ListView<T> listView = new ListView<T>();
listView.setCellFactory(cellFactory);
