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Class AWTEventMonitor

java.lang.Object
com.sun.java.accessibility.util.AWTEventMonitor
Direct Known Subclasses:
SwingEventMonitor
public class AWTEventMonitor extends Object

The AWTEventMonitor implements a suite of listeners that are conditionally installed on every AWT component instance in the Java Virtual Machine. The events captured by these listeners are made available through a unified set of listeners supported by AWTEventMonitor. With this, all the individual events on each of the AWT component instances are funneled into one set of listeners broken down by category (see EventID for the categories).

This class depends upon EventQueueMonitor, which provides the base level support for capturing the top-level containers as they are created.

Constructor Summary

Constructor Description
AWTEventMonitor()
Constructs an AWTEventMonitor.

Method Summary

Modifier and Type Method Description
static void addActionListener(ActionListener l)
Adds the specified listener to receive all ACTION events on each component instance in the Java Virtual Machine when they occur.
static void addAdjustmentListener(AdjustmentListener l)
Adds the specified listener to receive all ADJUSTMENT events on each component instance in the Java Virtual Machine when they occur.
static void addComponentListener(ComponentListener l)
Adds the specified listener to receive all COMPONENT events on each component instance in the Java Virtual Machine as they occur.
static void addContainerListener(ContainerListener l)
Adds the specified listener to receive all CONTAINER events on each component instance in the Java Virtual Machine as they occur.
static void addFocusListener(FocusListener l)
Adds the specified listener to receive all FOCUS events on each component instance in the Java Virtual Machine when they occur.
static void addItemListener(ItemListener l)
Adds the specified listener to receive all ITEM events on each component instance in the Java Virtual Machine when they occur.
static void addKeyListener(KeyListener l)
Adds the specified listener to receive all KEY events on each component instance in the Java Virtual Machine when they occur.
static void addMouseListener(MouseListener l)
Adds the specified listener to receive all MOUSE events on each component instance in the Java Virtual Machine when they occur.
static void addMouseMotionListener(MouseMotionListener l)
Adds the specified listener to receive all mouse MOTION events on each component instance in the Java Virtual Machine when they occur.
static void addTextListener(TextListener l)
Adds the specified listener to receive all TEXT events on each component instance in the Java Virtual Machine when they occur.
static void addWindowListener(WindowListener l)
Adds the specified listener to receive all WINDOW events on each component instance in the Java Virtual Machine when they occur.
static Component getComponentWithFocus()
Returns the component that currently has keyboard focus.
static void removeActionListener(ActionListener l)
Removes the specified listener so it no longer receives ACTION events when they occur.
static void removeAdjustmentListener(AdjustmentListener l)
Removes the specified listener so it no longer receives ADJUSTMENT events when they occur.
static void removeComponentListener(ComponentListener l)
Removes the specified listener so it no longer receives COMPONENT events when they occur.
static void removeContainerListener(ContainerListener l)
Removes the specified listener so it no longer receives CONTAINER events when they occur.
static void removeFocusListener(FocusListener l)
Removes the specified listener so it no longer receives FOCUS events when they occur.
static void removeItemListener(ItemListener l)
Removes the specified listener so it no longer receives ITEM events when they occur.
static void removeKeyListener(KeyListener l)
Removes the specified listener so it no longer receives KEY events when they occur.
static void removeMouseListener(MouseListener l)
Removes the specified listener so it no longer receives MOUSE events when they occur.
static void removeMouseMotionListener(MouseMotionListener l)
Removes the specified listener so it no longer receives MOTION events when they occur.
static void removeTextListener(TextListener l)
Removes the specified listener so it no longer receives TEXT events when they occur.
static void removeWindowListener(WindowListener l)
Removes the specified listener so it no longer receives WINDOW events when they occur.

Methods declared in class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AWTEventMonitor

public AWTEventMonitor()
Constructs an AWTEventMonitor.

Method Details

getComponentWithFocus

public static Component getComponentWithFocus()
Returns the component that currently has keyboard focus. The return value can be null.
Returns:
the component that has keyboard focus

addComponentListener

public static void addComponentListener(ComponentListener l)
Adds the specified listener to receive all COMPONENT events on each component instance in the Java Virtual Machine as they occur.

Note: this listener is automatically added to all component instances created after this method is called. In addition, it is only added to component instances that support this listener type.

Parameters:
l - the listener to add
See Also:

removeComponentListener

public static void removeComponentListener(ComponentListener l)
Removes the specified listener so it no longer receives COMPONENT events when they occur.
Parameters:
l - the listener to remove
See Also:

addContainerListener

public static void addContainerListener(ContainerListener l)
Adds the specified listener to receive all CONTAINER events on each component instance in the Java Virtual Machine as they occur.

Note: this listener is automatically added to all component instances created after this method is called. In addition, it is only added to component instances that support this listener type.

Parameters:
l - the listener to add
See Also:

removeContainerListener

public static void removeContainerListener(ContainerListener l)
Removes the specified listener so it no longer receives CONTAINER events when they occur.
Parameters:
l - the listener to remove
See Also:

addFocusListener

public static void addFocusListener(FocusListener l)
Adds the specified listener to receive all FOCUS events on each component instance in the Java Virtual Machine when they occur.

Note: this listener is automatically added to all component instances created after this method is called. In addition, it is only added to component instances that support this listener type.

Parameters:
l - the listener to add
See Also:

removeFocusListener

public static void removeFocusListener(FocusListener l)
Removes the specified listener so it no longer receives FOCUS events when they occur.
Parameters:
l - the listener to remove
See Also:

addKeyListener

public static void addKeyListener(KeyListener l)
Adds the specified listener to receive all KEY events on each component instance in the Java Virtual Machine when they occur.

Note: this listener is automatically added to all component instances created after this method is called. In addition, it is only added to component instances that support this listener type.

Parameters:
l - the listener to add
See Also:

removeKeyListener

public static void removeKeyListener(KeyListener l)
Removes the specified listener so it no longer receives KEY events when they occur.
Parameters:
l - the listener to remove
See Also:

addMouseListener

public static void addMouseListener(MouseListener l)
Adds the specified listener to receive all MOUSE events on each component instance in the Java Virtual Machine when they occur.

Note: this listener is automatically added to all component instances created after this method is called. In addition, it is only added to component instances that support this listener type.

Parameters:
l - the listener to add
See Also:

removeMouseListener

public static void removeMouseListener(MouseListener l)
Removes the specified listener so it no longer receives MOUSE events when they occur.
Parameters:
l - the listener to remove
See Also:

addMouseMotionListener

public static void addMouseMotionListener(MouseMotionListener l)
Adds the specified listener to receive all mouse MOTION events on each component instance in the Java Virtual Machine when they occur.

Note: this listener is automatically added to all component instances created after this method is called. In addition, it is only added to component instances that support this listener type.

Parameters:
l - the listener to add
See Also:

removeMouseMotionListener

public static void removeMouseMotionListener(MouseMotionListener l)
Removes the specified listener so it no longer receives MOTION events when they occur.
Parameters:
l - the listener to remove
See Also:

addWindowListener

public static void addWindowListener(WindowListener l)
Adds the specified listener to receive all WINDOW events on each component instance in the Java Virtual Machine when they occur.

Note: this listener is automatically added to all component instances created after this method is called. In addition, it is only added to component instances that support this listener type.

Parameters:
l - the listener to add
See Also:

removeWindowListener

public static void removeWindowListener(WindowListener l)
Removes the specified listener so it no longer receives WINDOW events when they occur.
Parameters:
l - the listener to remove
See Also:

addActionListener

public static void addActionListener(ActionListener l)
Adds the specified listener to receive all ACTION events on each component instance in the Java Virtual Machine when they occur.

Note: This listener is automatically added to all component instances created after this method is called. In addition, it is only added to component instances that support this listener type.

Parameters:
l - the listener to add
See Also:

removeActionListener

public static void removeActionListener(ActionListener l)
Removes the specified listener so it no longer receives ACTION events when they occur.
Parameters:
l - the listener to remove
See Also:

addAdjustmentListener

public static void addAdjustmentListener(AdjustmentListener l)
Adds the specified listener to receive all ADJUSTMENT events on each component instance in the Java Virtual Machine when they occur.

Note: this listener is automatically added to all component instances created after this method is called. In addition, it is only added to component instances that support this listener type.

Parameters:
l - the listener to add
See Also:

removeAdjustmentListener

public static void removeAdjustmentListener(AdjustmentListener l)
Removes the specified listener so it no longer receives ADJUSTMENT events when they occur.
Parameters:
l - the listener to remove
See Also:

addItemListener

public static void addItemListener(ItemListener l)
Adds the specified listener to receive all ITEM events on each component instance in the Java Virtual Machine when they occur.

Note: this listener is automatically added to all component instances created after this method is called. In addition, it is only added to component instances that support this listener type.

Parameters:
l - the listener to add
See Also:

removeItemListener

public static void removeItemListener(ItemListener l)
Removes the specified listener so it no longer receives ITEM events when they occur.
Parameters:
l - the listener to remove
See Also:

addTextListener

public static void addTextListener(TextListener l)
Adds the specified listener to receive all TEXT events on each component instance in the Java Virtual Machine when they occur.

Note: this listener is automatically added to all component instances created after this method is called. In addition, it is only added to component instances that support this listener type.

Parameters:
l - the listener to add
See Also:

removeTextListener

public static void removeTextListener(TextListener l)
Removes the specified listener so it no longer receives TEXT events when they occur.
Parameters:
l - the listener to remove
See Also:

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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/21/docs/api/jdk.accessibility/com/sun/java/accessibility/util/AWTEventMonitor.html