/**
* Needed to avoid memory leak: we register this EmbeddedFrame as a listener with
* KeyboardFocusManager of applet's AppContext. We don't want the KFM to keep reference to our
* EmbeddedFrame forever if the Frame is no longer in use, so we add listeners in show() and
* remove them in hide().
*/
public void hide() {
if (appletKFM != null) {
removeTraversingOutListeners(appletKFM);
}
super.hide();
}
