/**
* Create a list box for displaying all the content items for the selected living story so that
* the user can select one to edit.
*/
private Widget createContentItemListBox() {
contentItemListBox = new ContentItemListBox(false);
contentItemListBox.setVisibleItemCount(15);
contentItemListBox.addFilterChangeHandler(new ChangeHandler() {
@Override
public void onChange(ChangeEvent event) {
contentPanel.showWidget(0);