private boolean handleNextStep(final PopupStep nextStep, Object parentValue, InputEvent e) {
    if (nextStep != PopupStep.FINAL_CHOICE) {
      final Point point = myList.indexToLocation(myList.getSelectedIndex());
      SwingUtilities.convertPointToScreen(point, myList);
      myChild = createPopup(this, nextStep, parentValue);
      if (myChild instanceof ListPopupImpl) {
        for (ListSelectionListener listener : myList.getListSelectionListeners()) {
          ((ListPopupImpl) myChild).addListSelectionListener(listener);
        }
      }
      final JComponent container = getContent();
      assert container != null : "container == null";

      int y = point.y;
      if (parentValue != null && getListModel().isSeparatorAboveOf(parentValue)) {
        SeparatorWithText swt = new SeparatorWithText();
        swt.setCaption(getListModel().getCaptionAboveOf(parentValue));
        y += swt.getPreferredSize().height - 1;
      }

      myChild.show(container, point.x + container.getWidth() - STEP_X_PADDING, y, true);
      setIndexForShowingChild(myList.getSelectedIndex());
      return false;
    } else {
      setOk(true);
      setFinalRunnable(myStep.getFinalRunnable());
      disposeAllParents(e);
      setIndexForShowingChild(-1);
      return true;
    }
  }
 protected void onAutoSelectionTimer() {
   if (myList.getModel().getSize() > 0 && !myList.isSelectionEmpty()) {
     handleSelect(false);
   } else {
     disposeChildren();
     setIndexForShowingChild(-1);
   }
 }
  private boolean _handleSelect(final boolean handleFinalChoices, InputEvent e) {
    if (myList.getSelectedIndex() == -1) return false;

    if (getSpeedSearch().isHoldingFilter() && myList.getModel().getSize() == 0) return false;

    if (myList.getSelectedIndex() == getIndexForShowingChild()) {
      if (myChild != null && !myChild.isVisible()) setIndexForShowingChild(-1);
      return false;
    }

    final Object[] selectedValues = myList.getSelectedValues();
    final ListPopupStep<Object> listStep = getListStep();
    if (!listStep.isSelectable(selectedValues[0])) return false;

    if ((listStep instanceof MultiSelectionListPopupStep<?>
                && !((MultiSelectionListPopupStep<Object>) listStep)
                    .hasSubstep(Arrays.asList(selectedValues))
            || !listStep.hasSubstep(selectedValues[0]))
        && !handleFinalChoices) return false;

    disposeChildren();

    if (myListModel.getSize() == 0) {
      setFinalRunnable(myStep.getFinalRunnable());
      setOk(true);
      disposeAllParents(e);
      setIndexForShowingChild(-1);
      return true;
    }

    valuesSelected(selectedValues);

    final PopupStep nextStep =
        listStep instanceof MultiSelectionListPopupStep<?>
            ? ((MultiSelectionListPopupStep<Object>) listStep)
                .onChosen(Arrays.asList(selectedValues), handleFinalChoices)
            : listStep.onChosen(selectedValues[0], handleFinalChoices);
    return handleNextStep(nextStep, selectedValues.length == 1 ? selectedValues[0] : null, e);
  }
 public void disposeChildren() {
   setIndexForShowingChild(-1);
   super.disposeChildren();
 }