@Override
protected boolean prepareForShowing(QuickListContainer container) {
boolean toShow = false;
// if data list contains at least 1 element, show this popup.
T[] data;
if ((data = getData()).length > 0) {
dataList.setListData(data);
toShow = true;
}
// else, show popup with a "no elements" message.
else emptyPopup.show();
return toShow;
}
public QuickListWithDataList(
QuickListContainer container, String header, String emptyPopupHeader) {
super(container, header);
// get the TablePopupDataList.
dataList = getList();
// add JScrollPane that contains the TablePopupDataList to the popup.
JScrollPane scroll =
new JScrollPane(
dataList,
JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
scroll.setBorder(null);
scroll.getVerticalScrollBar().setFocusable(false);
scroll.getHorizontalScrollBar().setFocusable(false);
add(scroll);
dataList.addFocusListener(this);
// create TablePopupWithEmptyMsg that will be shown instead of this popup, if this
// popup's data list won't have any elements.
emptyPopup = new QuickListWithEmptyMsg(container, header, emptyPopupHeader);
}