protected void saveInternal(ObjectOutputStream s, String k) throws IOException {
if (a instanceof AWTEventMulticaster) {
((AWTEventMulticaster) a).saveInternal(s, k);
} else if (a instanceof Serializable) {
s.writeObject(k);
s.writeObject(a);
}
if (b instanceof AWTEventMulticaster) {
((AWTEventMulticaster) b).saveInternal(s, k);
} else if (b instanceof Serializable) {
s.writeObject(k);
s.writeObject(b);
}
}
@Override
public synchronized void removeAdjustmentListener(final AdjustmentListener l) {
if (l == null) {
return;
}
adjustmentListener = AWTEventMulticaster.remove(adjustmentListener, l);
}
/**
* Returns an array of all the objects currently registered as <code><em>Foo</em>Listener</code>s
* upon this <code>MenuItem</code>. <code><em>Foo</em>Listener</code>s are registered using the
* <code>add<em>Foo</em>Listener</code> method.
*
* <p>You can specify the <code>listenerType</code> argument with a class literal, such as <code>
* <em>Foo</em>Listener.class</code>. For example, you can query a <code>MenuItem</code> <code>m
* </code> for its action listeners with the following code:
*
* <pre>ActionListener[] als = (ActionListener[])(m.getListeners(ActionListener.class));</pre>
*
* If no such listeners exist, this method returns an empty array.
*
* @param listenerType the type of listeners requested; this parameter should specify an interface
* that descends from <code>java.util.EventListener</code>
* @return an array of all objects registered as <code><em>Foo</em>Listener</code>s on this menu
* item, or an empty array if no such listeners have been added
* @exception ClassCastException if <code>listenerType</code> doesn't specify a class or interface
* that implements <code>java.util.EventListener</code>
* @see #getActionListeners
* @since 1.3
*/
public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
EventListener l = null;
if (listenerType == ActionListener.class) {
l = actionListener;
}
return AWTEventMulticaster.getListeners(l, listenerType);
}
/**
* Adds the specified action listener to receive action events from this text field. If l is null,
* no exception is thrown and no action is performed.
*
* @param l the action listener.
* @see #removeActionListener
* @see #getActionListeners
* @see java.awt.event.ActionListener
* @since JDK1.1
*/
public synchronized void addActionListener(ActionListener l) {
if (l == null) {
return;
}
actionListener = AWTEventMulticaster.add(actionListener, l);
newEventsOnly = true;
}
protected static void save(ObjectOutputStream s, String k, EventListener l) throws IOException {
if (l == null) {
return;
} else if (l instanceof AWTEventMulticaster) {
((AWTEventMulticaster) l).saveInternal(s, k);
} else if (l instanceof Serializable) {
s.writeObject(k);
s.writeObject(l);
}
}
/**
* Returns an array of all the adjustment listeners registered on this scrollbar.
*
* @return all of this scrollbar's <code>AdjustmentListener</code>s or an empty array if no
* adjustment listeners are currently registered
* @see #addAdjustmentListener
* @see #removeAdjustmentListener
* @see java.awt.event.AdjustmentEvent
* @see java.awt.event.AdjustmentListener
* @since 1.4
*/
public synchronized AdjustmentListener[] getAdjustmentListeners() {
return (AdjustmentListener[])
AWTEventMulticaster.getListeners(
(EventListener) adjustmentListener, AdjustmentListener.class);
}
public void addActionListener(ActionListener l) {
selectionListener = AWTEventMulticaster.add(selectionListener, l);
}
/**
* Removes the specified <code>ActionListener</code> from the list of registers listeners for this
* object.
*
* @param listener The listener to remove.
*/
public synchronized void removeActionListener(ActionListener listener) {
action_listeners = AWTEventMulticaster.remove(action_listeners, listener);
}
/**
* Removes the specified action listener so that it no longer receives action events from this
* text field. If l is null, no exception is thrown and no action is performed.
*
* @param l the action listener.
* @see #addActionListener
* @see #getActionListeners
* @see java.awt.event.ActionListener
* @since JDK1.1
*/
public synchronized void removeActionListener(ActionListener l) {
if (l == null) {
return;
}
actionListener = AWTEventMulticaster.remove(actionListener, l);
}
public void removeContainerListener(ContainerListener listener) {
cntrListener = AWTEventMulticaster.remove(cntrListener, listener);
}
synchronized void removeWindowListener(WindowListener l) {
windowListener = AWTEventMulticaster.remove(windowListener, l);
}
synchronized void addWindowListener(WindowListener l) {
windowListener = AWTEventMulticaster.add(windowListener, l);
}
/**
* Removes the specified <code>ItemListener</code> from the list of registers listeners for this
* object.
*
* @param listener The listener to remove.
*/
public synchronized void removeItemListener(ItemListener listener) {
item_listeners = AWTEventMulticaster.remove(item_listeners, listener);
}
/**
* Adds the specified <code>ItemListener</code> to the list of registered listeners for this
* object.
*
* @param listener The listener to add.
*/
public synchronized void addItemListener(ItemListener listener) {
item_listeners = AWTEventMulticaster.add(item_listeners, listener);
}
/** Adds an action listener. */
public synchronized void addActionListener(ActionListener l) {
if (l != null) {
actionListener = AWTEventMulticaster.add(actionListener, l);
}
}
public void addContainerListener(ContainerListener newListener) {
cntrListener = AWTEventMulticaster.add(cntrListener, newListener);
}
public void removeActionListener(ActionListener l) {
selectionListener = AWTEventMulticaster.remove(selectionListener, l);
}
public void addTextListener(TextListener l) {
textListener = AWTEventMulticaster.add(textListener, l);
}
public void removeTextListener(TextListener l) {
textListener = AWTEventMulticaster.remove(textListener, l);
}
/**
* Writes default serializable fields to stream. Writes a list of serializable ActionListener(s)
* as optional data. The non-serializable ActionListener(s) are detected and no attempt is made to
* serialize them.
*
* @serialData Null terminated sequence of zero or more pairs. A pair consists of a String and
* Object. The String indicates the type of object and is one of the following :
* ActionListenerK indicating and ActionListener object.
* @see AWTEventMulticaster#save(ObjectOutputStream, String, EventListener)
* @see java.awt.Component#actionListenerK
*/
private void writeObject(ObjectOutputStream s) throws IOException {
s.defaultWriteObject();
AWTEventMulticaster.save(s, actionListenerK, actionListener);
s.writeObject(null);
}
/**
* Adds the specified <code>ActionListener</code> to the list of registered listeners for this
* object.
*
* @param listener The listener to add.
*/
public synchronized void addActionListener(ActionListener listener) {
action_listeners = AWTEventMulticaster.add(action_listeners, listener);
}
