How to use

getSelectedItem

method

in

org.fujion.component.Listbox

/**
 * Returns the index of the selected list item. If there are multiple selections, the index of
 * the first selected item will be returned.
 *
 * @return The index of the selected list item. If there is no current selection, returns -1.
 */
public int getSelectedIndex() {
  Listitem item = getSelectedItem();
  return item == null ? -1 : item.getIndex();
}

/**
 * Returns the identifier of the currently selected layout, or null if none selected.
 *
 * @return The currently selected layout.
 */
private LayoutIdentifier getSelectedLayout() {
  Listitem item = lstLayouts.getSelectedItem();
  return item == null ? null : (LayoutIdentifier) item.getData();
}

/**
 * Double-clicking a list item adds it to the info panel.
 */
public void onDoubleClick$listbox() {
  pushDrop(listbox.getSelectedItem());
}

@EventHandler(value = "click", target = "btnRemoveSubscription")
private void onClick$btnRemoveSubscription() {
  Listitem item = lboxSubscriptions.getSelectedItem();
  
  if (item != null) {
    if (item.isSelected()) {
      subscribe(item.getLabel(), false);
    }
    
    lboxSubscriptions.removeChild(item);
  }
}

/**
 * Set the topic view when a topic selection is made.
 */
@EventHandler(value = "change", target = "@lstTopics")
private void onSelect$lstTopics() {
  Listitem item = lstTopics.getSelectedItem();
  Listitem keywordItem = lstKeywords.getSelectedItem();
  
  if (item == null) {
    int i = keywordItem.hasAttribute("last") ? (Integer) keywordItem.getAttribute("last") : 0;
    item = (Listitem) lstTopics.getChildAt(i);
    lstTopics.setSelectedItem(item);
  }
  
  if (item != null) {
    keywordItem.setAttribute("last", lstTopics.getSelectedIndex());
    setTopic((HelpTopic) item.getData());
  } else {
    setTopic(null);
  }
}

/**
 * Initialize the topic list when a keyword is selected. The last topic selected for the keyword
 * is automatically selected.
 */
@EventHandler(value = "change", target = "@lstKeywords")
private void onSelect$lstKeywords() {
  Listitem item = lstKeywords.getSelectedItem();
  
  if (item == null) {
    lstTopics.destroyChildren();
    setTopic(null);
    return;
  }
  
  List<HelpTopic> topics = getTopics(item.getLabel());
  
  if (!item.hasAttribute("sorted")) {
    item.setAttribute("sorted", true);
    Collections.sort(topics);
  }
  
  modelAndView.setModel(new ListModel<>(topics));
  onSelect$lstTopics();
}

public void onClick$btnSendEvent() {
  Listitem item = actions.getSelectedItem();
  
  if (item != null) {
    Action action = Action.valueOf(item.getLabel());
    EventManager.getInstance().fireLocalEvent(getEvent(action), action);
  }
}

private void processListResponses() {
  List<?> responses = control.getResponses();
  listbox.setVisible(true);
  
  for (Object rsp : responses) {
    DialogResponse<?> response = (DialogResponse<?>) rsp;
    Listitem item = new Listitem(StrUtil.formatMessage(response.getLabel()));
    item.addEventListener(DblclickEvent.TYPE, clickListener);
    item.setData(response);
    listbox.addChild(item);
    
    if (response.isDefault()) {
      item.setSelected(true);
    }
  }
  
  if (listbox.getSelectedCount() == 0) {
    listbox.setSelectedItem(listbox.getChild(Listitem.class));
  }
  
  addButton(LABEL_ID_CANCEL, "danger", (event) -> {
    close(null);
  });
  
  addButton(LABEL_ID_OK, "success", (event) -> {
    close(listbox.getSelectedItem());
  });
}