ActionCells within a CompositeCell not receiving onBrowserEvent()

The ActionCell's onBrowserEvent() methods are not called.  Is there something I need to override in the CompositeCell or ConsumedEvents to make this work?

Below my example code, based on the Sample http://gwt.google.com/samples/Showcase/Showcase.html#!CwCellTree  ....

// Construct a composite cell for actions

List<HasCell<Item, ?>> hasCells = new ArrayList<HasCell<Item, ?>>();

hasCells.add(new HasCell<Item, Item>() {

private ActionCell<Item> cell = new ActionCell<Item>(

SafeHtmlUtils

.fromTrustedString(Utils.makeImage(deleteIcon)),

new ActionCell.Delegate<Item>() {

@Override

public void execute(Item item) {

listener.onDeleteClicked(item);

}

});

public Cell<Item> getCell() {

return cell;

}

public FieldUpdater<Item, Item> getFieldUpdater() {

return null;

}

public Item getValue(Item item) {

return item;

}

});

hasCells.add(new HasCell<Item, Item>() {

private ActionCell<Item> cell = new ActionCell<Item>(

SafeHtmlUtils.fromTrustedString(Utils.makeImage(editIcon)),

new ActionCell.Delegate<Item>() {

@Override

public void execute(Item item) {

listener.onEditClicked(item);

}

});

public Cell<Item> getCell() {

return cell;

}

public FieldUpdater<Item, Item> getFieldUpdater() {

return null;

}

public Item getValue(Item item) {

return item;

}

});

CompositeCell<Item> actionsCell = new CompositeCell<Item>(

hasCells) {

@Override

public void render(Context context, Item value,

SafeHtmlBuilder sb) {

sb.appendHtmlConstant("<table><tbody><tr>");

super.render(context, value, sb);

sb.appendHtmlConstant("</tr></tbody></table>");

}

@Override

protected Element getContainerElement(Element parent) {

// Return the first TR element in the table.

return parent.getFirstChildElement().getFirstChildElement()

.getFirstChildElement();

}

@Override

protected <X> void render(Context context, Item value,

SafeHtmlBuilder sb, HasCell<Item, X> hasCell) {

Cell<X> cell = hasCell.getCell();

sb.appendHtmlConstant("<td>");

cell.render(context, hasCell.getValue(value), sb);

sb.appendHtmlConstant("</td>");

}

};

Thanks in advance

---
-Daniel Johnston

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