Map.java 文件源码

/**
 * Save all current Key Listeners and remove them from the
 * map. Used by Traits that need to prevent Key Commands
 * at certain times.
 */
public void enableKeyListeners() {
  if (saveKeyListeners == null) return;

  for (KeyListener kl : saveKeyListeners) {
    theMap.addKeyListener(kl);
  }

  saveKeyListeners = null;
}