java.awt.AWTEventMulticaster Maven / Gradle / Ivy
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stub files, must be accompanied by this notice in its entirety.
This work corresponds to the API signatures of JSR 217: Personal Basis
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package java.awt;
import java.awt.event.*;
import java.lang.reflect.Array;
import java.util.EventListener;
import java.io.Serializable;
import java.io.ObjectOutputStream;
import java.io.IOException;
import java.util.EventListener;
/**
* A class which implements efficient and thread-safe multi-cast event
* dispatching for the AWT events defined in the java.awt.event package.
* This class will manage an immutable structure consisting of a chain of
* event listeners and will dispatch events to those listeners. Because
* the structure is immutable, it is safe to use this API to add/remove
* listeners during the process of an event dispatch operation.
* However, event listeners added during the process of an event dispatch
* operation will not be notified of the event currently being dispatched.
*
* An example of how this class could be used to implement a new
* component which fires "action" events:
*
*
* public myComponent extends Component {
* ActionListener actionListener = null;
*
* public synchronized void addActionListener(ActionListener l) {
* actionListener = AWTEventMulticaster.add(actionListener, l);
* }
* public synchronized void removeActionListener(ActionListener l) {
* actionListener = AWTEventMulticaster.remove(actionListener, l);
* }
* public void processEvent(AWTEvent e) {
* // when event occurs which causes "action" semantic
* ActionListener listener = actionListener;
* if (listener != null) {
* listener.actionPerformed(new ActionEvent());
* }
* }
* }
*
*
* @author John Rose
* @author Amy Fowler
* @version 1.35, 01/23/03
* @since 1.1
*/
// public class AWTEventMulticaster
// implements ComponentListener, ContainerListener, FocusListener, KeyListener,
// MouseListener, MouseMotionListener, WindowListener, WindowFocusListener,
// WindowStateListener, ActionListener, ItemListener, AdjustmentListener,
// TextListener, InputMethodListener, HierarchyListener,
// HierarchyBoundsListener, MouseWheelListener
public class AWTEventMulticaster
implements ComponentListener, ContainerListener, FocusListener, KeyListener,
MouseListener, MouseMotionListener, WindowListener, WindowFocusListener,
ActionListener, ItemListener, InputMethodListener, AdjustmentListener,
TextListener, MouseWheelListener
{
protected final java.util.EventListener a = null;
protected final java.util.EventListener b = null;
/**
* Creates an event multicaster instance which chains listener-a
* with listener-b. Input parameters a and b
* should not be null, though implementations may vary in
* choosing whether or not to throw NullPointerException
* in that case.
* @param a listener-a
* @param b listener-b
*/
protected AWTEventMulticaster(java.util.EventListener a,
java.util.EventListener b)
{ }
/**
* Removes a listener from this multicaster and returns the
* resulting multicast listener.
* @param oldl the listener to be removed
*/
protected java.util.EventListener remove(java.util.EventListener oldl) { return null;}
/**
* Handles the componentResized event by invoking the
* componentResized methods on listener-a and listener-b.
* @param e the component event
*/
public void componentResized(ComponentEvent e) { }
/**
* Handles the componentMoved event by invoking the
* componentMoved methods on listener-a and listener-b.
* @param e the component event
*/
public void componentMoved(ComponentEvent e) { }
/**
* Handles the componentShown event by invoking the
* componentShown methods on listener-a and listener-b.
* @param e the component event
*/
public void componentShown(ComponentEvent e) { }
/**
* Handles the componentHidden event by invoking the
* componentHidden methods on listener-a and listener-b.
* @param e the component event
*/
public void componentHidden(ComponentEvent e) { }
/**
* Handles the componentAdded container event by invoking the
* componentAdded methods on listener-a and listener-b.
* @param e the component event
*/
public void componentAdded(ContainerEvent e) { }
/**
* Handles the componentRemoved container event by invoking the
* componentRemoved methods on listener-a and listener-b.
* @param e the component event
*/
public void componentRemoved(ContainerEvent e) { }
/**
* Handles the focusGained event by invoking the
* focusGained methods on listener-a and listener-b.
* @param e the focus event
*/
public void focusGained(FocusEvent e) { }
/**
* Handles the focusLost event by invoking the
* focusLost methods on listener-a and listener-b.
* @param e the focus event
*/
public void focusLost(FocusEvent e) { }
/**
* Handles the keyTyped event by invoking the
* keyTyped methods on listener-a and listener-b.
* @param e the key event
*/
public void keyTyped(KeyEvent e) { }
/**
* Handles the keyPressed event by invoking the
* keyPressed methods on listener-a and listener-b.
* @param e the key event
*/
public void keyPressed(KeyEvent e) { }
/**
* Handles the keyReleased event by invoking the
* keyReleased methods on listener-a and listener-b.
* @param e the key event
*/
public void keyReleased(KeyEvent e) { }
/**
* Handles the mouseClicked event by invoking the
* mouseClicked methods on listener-a and listener-b.
* @param e the mouse event
*/
public void mouseClicked(MouseEvent e) { }
/**
* Handles the mousePressed event by invoking the
* mousePressed methods on listener-a and listener-b.
* @param e the mouse event
*/
public void mousePressed(MouseEvent e) { }
/**
* Handles the mouseReleased event by invoking the
* mouseReleased methods on listener-a and listener-b.
* @param e the mouse event
*/
public void mouseReleased(MouseEvent e) { }
/**
* Handles the mouseEntered event by invoking the
* mouseEntered methods on listener-a and listener-b.
* @param e the mouse event
*/
public void mouseEntered(MouseEvent e) { }
/**
* Handles the mouseExited event by invoking the
* mouseExited methods on listener-a and listener-b.
* @param e the mouse event
*/
public void mouseExited(MouseEvent e) { }
/**
* Handles the mouseDragged event by invoking the
* mouseDragged methods on listener-a and listener-b.
* @param e the mouse event
*/
public void mouseDragged(MouseEvent e) { }
/**
* Handles the mouseMoved event by invoking the
* mouseMoved methods on listener-a and listener-b.
* @param e the mouse event
*/
public void mouseMoved(MouseEvent e) { }
/**
* Handles the windowOpened event by invoking the
* windowOpened methods on listener-a and listener-b.
* @param e the window event
*/
public void windowOpened(WindowEvent e) { }
/**
* Handles the windowClosing event by invoking the
* windowClosing methods on listener-a and listener-b.
* @param e the window event
*/
public void windowClosing(WindowEvent e) { }
/**
* Handles the windowClosed event by invoking the
* windowClosed methods on listener-a and listener-b.
* @param e the window event
*/
public void windowClosed(WindowEvent e) { }
/**
* Handles the windowIconified event by invoking the
* windowIconified methods on listener-a and listener-b.
* @param e the window event
*/
public void windowIconified(WindowEvent e) { }
/**
* Handles the windowDeiconfied event by invoking the
* windowDeiconified methods on listener-a and listener-b.
* @param e the window event
*/
public void windowDeiconified(WindowEvent e) { }
/**
* Handles the windowActivated event by invoking the
* windowActivated methods on listener-a and listener-b.
* @param e the window event
*/
public void windowActivated(WindowEvent e) { }
/**
* Handles the windowDeactivated event by invoking the
* windowDeactivated methods on listener-a and listener-b.
* @param e the window event
*/
public void windowDeactivated(WindowEvent e) { }
/**
* Handles the windowStateChanged event by invoking the
* windowStateChanged methods on listener-a and listener-b.
* @param e the window event
*/
// public void windowStateChanged(WindowEvent e) { }
/**
* Handles the windowGainedFocus event by invoking the windowGainedFocus
* methods on listener-a and listener-b.
* @param e the window event
*/
public void windowGainedFocus(WindowEvent e) { }
/**
* Handles the windowLostFocus event by invoking the windowLostFocus
* methods on listener-a and listener-b.
* @param e the window event
*/
public void windowLostFocus(WindowEvent e) { }
/**
* Handles the actionPerformed event by invoking the
* actionPerformed methods on listener-a and listener-b.
* @param e the action event
*/
public void actionPerformed(ActionEvent e) { }
/**
* Handles the itemStateChanged event by invoking the
* itemStateChanged methods on listener-a and listener-b.
* @param e the item event
*/
public void itemStateChanged(ItemEvent e) { }
/**
* Handles the adjustmentValueChanged event by invoking the
* adjustmentValueChanged methods on listener-a and listener-b.
* @param e the adjustment event
*/
public void adjustmentValueChanged(AdjustmentEvent e) { }
public void textValueChanged(TextEvent e) { }
/**
* Handles the inputMethodTextChanged event by invoking the
* inputMethodTextChanged methods on listener-a and listener-b.
* @param e the item event
*/
public void inputMethodTextChanged(InputMethodEvent e) { }
/**
* Handles the caretPositionChanged event by invoking the
* caretPositionChanged methods on listener-a and listener-b.
* @param e the item event
*/
public void caretPositionChanged(InputMethodEvent e) { }
// /**
// * Handles the hierarchyChanged event by invoking the
// * hierarchyChanged methods on listener-a and listener-b.
// * @param e the item event
// */
// public void hierarchyChanged(HierarchyEvent e) { }
// /**
// * Handles the ancestorMoved event by invoking the
// * ancestorMoved methods on listener-a and listener-b.
// * @param e the item event
// */
// public void ancestorMoved(HierarchyEvent e) { }
//
// /**
// * Handles the ancestorResized event by invoking the
// * ancestorResized methods on listener-a and listener-b.
// * @param e the item event
// */
// public void ancestorResized(HierarchyEvent e) { }
/**
* Handles the mouseWheelMoved event by invoking the
* mouseWheelMoved methods on listener-a and listener-b.
* @param e the mouse event
* @since 1.4
*/
public void mouseWheelMoved(MouseWheelEvent e) { }
/**
* Adds component-listener-a with component-listener-b and
* returns the resulting multicast listener.
* @param a component-listener-a
* @param b component-listener-b
*/
public static ComponentListener add(ComponentListener a, ComponentListener
b)
{return null; }
/**
* Adds container-listener-a with container-listener-b and
* returns the resulting multicast listener.
* @param a container-listener-a
* @param b container-listener-b
*/
public static ContainerListener add(ContainerListener a, ContainerListener
b)
{return null; }
/**
* Adds focus-listener-a with focus-listener-b and
* returns the resulting multicast listener.
* @param a focus-listener-a
* @param b focus-listener-b
*/
public static FocusListener add(FocusListener a, FocusListener b) {return null; }
/**
* Adds key-listener-a with key-listener-b and
* returns the resulting multicast listener.
* @param a key-listener-a
* @param b key-listener-b
*/
public static KeyListener add(KeyListener a, KeyListener b) { return null;}
/**
* Adds mouse-listener-a with mouse-listener-b and
* returns the resulting multicast listener.
* @param a mouse-listener-a
* @param b mouse-listener-b
*/
public static MouseListener add(MouseListener a, MouseListener b) { return null;}
/**
* Adds mouse-motion-listener-a with mouse-motion-listener-b and
* returns the resulting multicast listener.
* @param a mouse-motion-listener-a
* @param b mouse-motion-listener-b
*/
public static MouseMotionListener add(MouseMotionListener a,
MouseMotionListener b)
{ return null;}
/**
* Adds window-listener-a with window-listener-b and
* returns the resulting multicast listener.
* @param a window-listener-a
* @param b window-listener-b
*/
public static WindowListener add(WindowListener a, WindowListener b) {return null; }
/**
* Adds window-state-listener-a with window-state-listener-b
* and returns the resulting multicast listener.
* @param a window-state-listener-a
* @param b window-state-listener-b
*/
// public static WindowStateListener add(WindowStateListener a,
// WindowStateListener b)
// { return null;}
/**
* Adds window-focus-listener-a with window-focus-listener-b
* and returns the resulting multicast listener.
* @param a window-focus-listener-a
* @param b window-focus-listener-b
*/
public static WindowFocusListener add(WindowFocusListener a,
WindowFocusListener b)
{ return null;}
/**
* Adds action-listener-a with action-listener-b and
* returns the resulting multicast listener.
* @param a action-listener-a
* @param b action-listener-b
*/
public static ActionListener add(ActionListener a, ActionListener b) { return null;}
/**
* Adds item-listener-a with item-listener-b and
* returns the resulting multicast listener.
* @param a item-listener-a
* @param b item-listener-b
*/
public static ItemListener add(ItemListener a, ItemListener b) {return null; }
/**
* Adds adjustment-listener-a with adjustment-listener-b and
* returns the resulting multicast listener.
* @param a adjustment-listener-a
* @param b adjustment-listener-b
*/
public static AdjustmentListener add(AdjustmentListener a,
AdjustmentListener b)
{ return null;}
public static TextListener add(TextListener a, TextListener b) {return null; }
/**
* Adds input-method-listener-a with input-method-listener-b and
* returns the resulting multicast listener.
* @param a input-method-listener-a
* @param b input-method-listener-b
*/
public static InputMethodListener add(InputMethodListener a,
InputMethodListener b)
{ return null; }
// /**
// * Adds hierarchy-listener-a with hierarchy-listener-b and
// * returns the resulting multicast listener.
// * @param a hierarchy-listener-a
// * @param b hierarchy-listener-b
// */
// public static HierarchyListener add(HierarchyListener a, HierarchyListener
// b)
// { }
//
// /**
// * Adds hierarchy-bounds-listener-a with hierarchy-bounds-listener-b and
// * returns the resulting multicast listener.
// * @param a hierarchy-bounds-listener-a
// * @param b hierarchy-bounds-listener-b
// */
// public static HierarchyBoundsListener add(HierarchyBoundsListener a,
// HierarchyBoundsListener b)
// { }
/**
* Adds mouse-wheel-listener-a with mouse-wheel-listener-b and
* returns the resulting multicast listener.
* @param a mouse-wheel-listener-a
* @param b mouse-wheel-listener-b
* @since 1.4
*/
public static MouseWheelListener add(MouseWheelListener a,
MouseWheelListener b)
{ return null; }
/**
* Removes the old component-listener from component-listener-l and
* returns the resulting multicast listener.
* @param l component-listener-l
* @param oldl the component-listener being removed
*/
public static ComponentListener remove(ComponentListener l,
ComponentListener oldl)
{ return null;}
/**
* Removes the old container-listener from container-listener-l and
* returns the resulting multicast listener.
* @param l container-listener-l
* @param oldl the container-listener being removed
*/
public static ContainerListener remove(ContainerListener l,
ContainerListener oldl)
{return null; }
/**
* Removes the old focus-listener from focus-listener-l and
* returns the resulting multicast listener.
* @param l focus-listener-l
* @param oldl the focus-listener being removed
*/
public static FocusListener remove(FocusListener l, FocusListener oldl) {return null; }
/**
* Removes the old key-listener from key-listener-l and
* returns the resulting multicast listener.
* @param l key-listener-l
* @param oldl the key-listener being removed
*/
public static KeyListener remove(KeyListener l, KeyListener oldl) { return null;}
/**
* Removes the old mouse-listener from mouse-listener-l and
* returns the resulting multicast listener.
* @param l mouse-listener-l
* @param oldl the mouse-listener being removed
*/
public static MouseListener remove(MouseListener l, MouseListener oldl) { return null;}
/**
* Removes the old mouse-motion-listener from mouse-motion-listener-l
* and returns the resulting multicast listener.
* @param l mouse-motion-listener-l
* @param oldl the mouse-motion-listener being removed
*/
public static MouseMotionListener remove(MouseMotionListener l,
MouseMotionListener oldl)
{return null; }
/**
* Removes the old window-listener from window-listener-l and
* returns the resulting multicast listener.
* @param l window-listener-l
* @param oldl the window-listener being removed
*/
public static WindowListener remove(WindowListener l, WindowListener oldl)
{ return null;}
/**
* Removes the old window-state-listener from window-state-listener-l
* and returns the resulting multicast listener.
* @param l window-state-listener-l
* @param oldl the window-state-listener being removed
*/
// public static WindowStateListener remove(WindowStateListener l,
// WindowStateListener oldl)
// {return null; }
/**
* Removes the old window-focus-listener from window-focus-listener-l
* and returns the resulting multicast listener.
* @param l window-focus-listener-l
* @param oldl the window-focus-listener being removed
*/
public static WindowFocusListener remove(WindowFocusListener l,
WindowFocusListener oldl)
{ return null;}
/**
* Removes the old action-listener from action-listener-l and
* returns the resulting multicast listener.
* @param l action-listener-l
* @param oldl the action-listener being removed
*/
public static ActionListener remove(ActionListener l, ActionListener oldl)
{return null; }
/**
* Removes the old item-listener from item-listener-l and
* returns the resulting multicast listener.
* @param l item-listener-l
* @param oldl the item-listener being removed
*/
public static ItemListener remove(ItemListener l, ItemListener oldl) {return null; }
/**
* Removes the old adjustment-listener from adjustment-listener-l and
* returns the resulting multicast listener.
* @param l adjustment-listener-l
* @param oldl the adjustment-listener being removed
*/
public static AdjustmentListener remove(AdjustmentListener l,
AdjustmentListener oldl)
{return null; }
public static TextListener remove(TextListener l, TextListener oldl) {return null; }
/**
* Removes the old input-method-listener from input-method-listener-l and
* returns the resulting multicast listener.
* @param l input-method-listener-l
* @param oldl the input-method-listener being removed
*/
public static InputMethodListener remove(InputMethodListener l,
InputMethodListener oldl)
{ return null; }
//
// /**
// * Removes the old hierarchy-listener from hierarchy-listener-l and
// * returns the resulting multicast listener.
// * @param l hierarchy-listener-l
// * @param oldl the hierarchy-listener being removed
// */
// public static HierarchyListener remove(HierarchyListener l,
// HierarchyListener oldl)
// { }
//
// /**
// * Removes the old hierarchy-bounds-listener from
// * hierarchy-bounds-listener-l and returns the resulting multicast
// * listener.
// * @param l hierarchy-bounds-listener-l
// * @param oldl the hierarchy-bounds-listener being removed
// */
// public static HierarchyBoundsListener remove(HierarchyBoundsListener l,
// HierarchyBoundsListener oldl)
// { }
/**
* Removes the old mouse-wheel-listener from mouse-wheel-listener-l
* and returns the resulting multicast listener.
* @param l mouse-wheel-listener-l
* @param oldl the mouse-wheel-listener being removed
* @since 1.4
*/
public static MouseWheelListener remove(MouseWheelListener l,
MouseWheelListener oldl)
{ return null; }
/**
* Returns the resulting multicast listener from adding listener-a
* and listener-b together.
* If listener-a is null, it returns listener-b;
* If listener-b is null, it returns listener-a
* If neither are null, then it creates and returns
* a new AWTEventMulticaster instance which chains a with b.
* @param a event listener-a
* @param b event listener-b
*/
protected static java.util.EventListener addInternal(java.util.EventListener
a, java.util.EventListener b)
{return null; }
/**
* Returns the resulting multicast listener after removing the
* old listener from listener-l.
* If listener-l equals the old listener OR listener-l is null,
* returns null.
* Else if listener-l is an instance of AWTEventMulticaster,
* then it removes the old listener from it.
* Else, returns listener l.
* @param l the listener being removed from
* @param oldl the listener being removed
*/
protected static java.util.EventListener
removeInternal(java.util.EventListener l, java.util.EventListener oldl)
{ return null;}
protected void saveInternal(ObjectOutputStream s, String k)
throws IOException
{ }
protected static void save(ObjectOutputStream s, String k,
java.util.EventListener l) throws IOException
{ }
/**
* Returns an array of all the objects chained as
* FooListeners by the specified
* java.util.EventListener.
* FooListeners are chained by the
* AWTEventMulticaster using the
* addFooListener method.
* If a null listener is specified, this method returns an
* empty array. If the specified listener is not an instance of
* AWTEventMulticaster, this method returns an array which
* contains only the specified listener. If no such listeners are chanined,
* this method returns an empty array.
*
* @param l the specified java.util.EventListener
* @param listenerType the type of listeners requested; this parameter
* should specify an interface that descends from
* java.util.EventListener
* @return an array of all objects chained as
* FooListeners by the specified multicast
* listener, or an empty array if no such listeners have been
* chained by the specified multicast listener
* @exception ClassCastException if listenerType
* doesn't specify a class or interface that implements
* java.util.EventListener
*
* @since 1.4
*/
public static java.util.EventListener[] getListeners(java.util.EventListener
l, Class listenerType)
{ return null; }
}