java类java.awt.event.ContainerListener的实例源码

public void removeContainerListener(ContainerListener l) {
    // toolkit.lockAWT();
    // try {
    containerListeners.removeUserListener(l);
    // } finally {
    // toolkit.unlockAWT();
    // }
}

@SuppressWarnings("unchecked")
@Override
public <T extends EventListener> T[] getListeners(Class<T> listenerType) {
    // toolkit.lockAWT();
    // try {
    if (ContainerListener.class.isAssignableFrom(listenerType)) {
        return (T[]) getContainerListeners();
    }
    return super.getListeners(listenerType);
    // } finally {
    // toolkit.unlockAWT();
    // }
}

public void testCreateContainerListener() {
    final ContainerListener containerListener1 = menuBarUI.createContainerListener();
    final ContainerListener containerListener2 = menuBarUI.createContainerListener();
    assertNotNull(containerListener1);
    assertSame(containerListener1, containerListener2);
    assertSame(containerListener1, menuBarUI.createChangeListener());
}

/**
 * Adds the specified container listener to this object's list of
 * container listeners.
 *
 * @param listener The listener to add.
 */
public synchronized void addContainerListener(ContainerListener listener)
{
  if (listener != null)
    {
      containerListener = AWTEventMulticaster.add(containerListener,
                                                  listener);
      newEventsOnly = true;
    }
}

/**
 * @since 1.4
 */
public synchronized ContainerListener[] getContainerListeners()
{
  return (ContainerListener[])
    AWTEventMulticaster.getListeners(containerListener,
                                     ContainerListener.class);
}

/**
 * This method is called when a component is added to the container.
 * 
 * @param event the <code>ContainerEvent</code> indicating component
 *          addition
 */
public void componentAdded(ContainerEvent event)
{
  if (applet != null)
    {
      ContainerListener[] l = applet.getContainerListeners();
      for (int i = 0; i < l.length; i++)
        l[i].componentAdded(event);
    }
}

/**
 * This method is called when a component is removed from the container.
 * 
 * @param event the <code>ContainerEvent</code> indicating component removal
 */
public void componentRemoved(ContainerEvent event)
{
  if (applet != null)
    {
      ContainerListener[] l = applet.getContainerListeners();
      for (int i = 0; i < l.length; i++)
        l[i].componentRemoved(event);
    }
}

/**
 * This method is called when a component is added to the container.
 * 
 * @param event the <code>ContainerEvent</code> indicating component
 *          addition
 */
public void componentAdded(ContainerEvent event)
{
  if (applet != null)
    {
      ContainerListener[] l = applet.getContainerListeners();
      for (int i = 0; i < l.length; i++)
        l[i].componentAdded(event);
    }
}

/**
 * This method is called when a component is removed from the container.
 * 
 * @param event the <code>ContainerEvent</code> indicating component removal
 */
public void componentRemoved(ContainerEvent event)
{
  if (applet != null)
    {
      ContainerListener[] l = applet.getContainerListeners();
      for (int i = 0; i < l.length; i++)
        l[i].componentRemoved(event);
    }
}

/**
 * Adds the specified container listener to this object's list of
 * container listeners.
 *
 * @param listener The listener to add.
 */
public synchronized void addContainerListener(ContainerListener listener)
{
  if (listener != null)
    {
      containerListener = AWTEventMulticaster.add(containerListener,
                                                  listener);
      newEventsOnly = true;
    }
}