AWTTextKeyboardDriver.java 文件源码

@Override
public NavigationKey[] getKeys(ComponentOperator oper) {
    boolean multiString = oper instanceof TextAreaOperator;
    NavigationKey[] result = new NavigationKey[multiString ? 4 : 2];
    result[0] = new UpKey(KeyEvent.VK_LEFT, 0);
    result[1] = new DownKey(KeyEvent.VK_RIGHT, 0);
    ((UpKey) result[0]).setDownKey((DownKey) result[1]);
    ((DownKey) result[1]).setUpKey((UpKey) result[0]);
    if (multiString) {
        result[2] = new UpKey(KeyEvent.VK_UP, 0);
        result[3] = new DownKey(KeyEvent.VK_DOWN, 0);
        ((UpKey) result[2]).setDownKey((DownKey) result[3]);
        ((DownKey) result[3]).setUpKey((UpKey) result[2]);
    }
    return result;
}