@SuppressWarnings("HardCodedStringLiteral") private boolean togglePopup(KeyEvent e) { final KeyStroke stroke = KeyStroke.getKeyStroke(e.getKeyCode(), e.getModifiers()); final Object action = ((InputMap) UIManager.get("ComboBox.ancestorInputMap")).get(stroke); if ("selectNext".equals(action)) { if (!isPopupShowing()) { return true; } else { return false; } } else if ("togglePopup".equals(action)) { if (isPopupShowing()) { closePopup(); } else { suggestCompletion(true, true); } return true; } else { final Keymap active = KeymapManager.getInstance().getActiveKeymap(); final String[] ids = active.getActionIds(stroke); if (ids.length > 0 && IdeActions.ACTION_CODE_COMPLETION.equals(ids[0])) { suggestCompletion(true, true); } } return false; }