Save This Page
Home » openjdk-7 » java » awt » [javadoc | source]
java.awt
abstract public class: KeyboardFocusManager [javadoc | source]
java.lang.Object
   java.awt.KeyboardFocusManager

All Implemented Interfaces:
    KeyEventDispatcher, KeyEventPostProcessor

Direct Known Subclasses:
    DelegatingDefaultFocusManager, DefaultKeyboardFocusManager, DefaultFocusManager, FocusManager

The KeyboardFocusManager is responsible for managing the active and focused Windows, and the current focus owner. The focus owner is defined as the Component in an application that will typically receive all KeyEvents generated by the user. The focused Window is the Window that is, or contains, the focus owner. Only a Frame or a Dialog can be the active Window. The native windowing system may denote the active Window or its children with special decorations, such as a highlighted title bar. The active Window is always either the focused Window, or the first Frame or Dialog that is an owner of the focused Window.

The KeyboardFocusManager is both a centralized location for client code to query for the focus owner and initiate focus changes, and an event dispatcher for all FocusEvents, WindowEvents related to focus, and KeyEvents.

Some browsers partition applets in different code bases into separate contexts, and establish walls between these contexts. In such a scenario, there will be one KeyboardFocusManager per context. Other browsers place all applets into the same context, implying that there will be only a single, global KeyboardFocusManager for all applets. This behavior is implementation-dependent. Consult your browser's documentation for more information. No matter how many contexts there may be, however, there can never be more than one focus owner, focused Window, or active Window, per ClassLoader.

Please see How to Use the Focus Subsystem, a section in The Java Tutorial, and the Focus Specification for more information.

Field Summary
transient  KeyboardFocusManagerPeer peer     
public static final  int FORWARD_TRAVERSAL_KEYS    The identifier for the Forward focus traversal keys. 
public static final  int BACKWARD_TRAVERSAL_KEYS    The identifier for the Backward focus traversal keys. 
public static final  int UP_CYCLE_TRAVERSAL_KEYS    The identifier for the Up Cycle focus traversal keys. 
public static final  int DOWN_CYCLE_TRAVERSAL_KEYS    The identifier for the Down Cycle focus traversal keys. 
static final  int TRAVERSAL_KEY_LENGTH     
transient  SequencedEvent currentSequencedEvent     
static final  int SNFH_FAILURE     
static final  int SNFH_SUCCESS_HANDLED     
static final  int SNFH_SUCCESS_PROCEED     
static  Field proxyActive     
Constructor:
 public KeyboardFocusManager() 
Method from java.awt.KeyboardFocusManager Summary:
addKeyEventDispatcher,   addKeyEventPostProcessor,   addPropertyChangeListener,   addPropertyChangeListener,   addVetoableChangeListener,   addVetoableChangeListener,   clearGlobalFocusOwner,   clearMarkers,   clearMostRecentFocusOwner,   dequeueKeyEvents,   discardKeyEvents,   dispatchEvent,   dispatchKeyEvent,   downFocusCycle,   downFocusCycle,   dumpRequests,   enqueueKeyEvents,   firePropertyChange,   fireVetoableChange,   focusNextComponent,   focusNextComponent,   focusPreviousComponent,   focusPreviousComponent,   getActiveWindow,   getCurrentFocusCycleRoot,   getCurrentKeyboardFocusManager,   getCurrentKeyboardFocusManager,   getCurrentSequencedEvent,   getCurrentWaitingRequest,   getDefaultFocusTraversalKeys,   getDefaultFocusTraversalPolicy,   getFocusOwner,   getFocusedWindow,   getGlobalActiveWindow,   getGlobalCurrentFocusCycleRoot,   getGlobalFocusOwner,   getGlobalFocusedWindow,   getGlobalPermanentFocusOwner,   getHeavyweight,   getKeyEventDispatchers,   getKeyEventPostProcessors,   getMostRecentFocusOwner,   getNativeFocusOwner,   getNativeFocusedWindow,   getPermanentFocusOwner,   getPropertyChangeListeners,   getPropertyChangeListeners,   getVetoableChangeListeners,   getVetoableChangeListeners,   initFocusTraversalKeysSet,   isAutoFocusTransferEnabled,   isAutoFocusTransferEnabledFor,   isProxyActive,   markClearGlobalFocusOwner,   postProcessKeyEvent,   processCurrentLightweightRequests,   processKeyEvent,   processSynchronousLightweightTransfer,   redispatchEvent,   removeFirstRequest,   removeKeyEventDispatcher,   removeKeyEventPostProcessor,   removeLastFocusRequest,   removePropertyChangeListener,   removePropertyChangeListener,   removeVetoableChangeListener,   removeVetoableChangeListener,   retargetFocusEvent,   retargetFocusGained,   retargetFocusLost,   retargetUnexpectedFocusEvent,   setCurrentKeyboardFocusManager,   setCurrentSequencedEvent,   setDefaultFocusTraversalKeys,   setDefaultFocusTraversalPolicy,   setGlobalActiveWindow,   setGlobalCurrentFocusCycleRoot,   setGlobalFocusOwner,   setGlobalFocusedWindow,   setGlobalPermanentFocusOwner,   setMostRecentFocusOwner,   setMostRecentFocusOwner,   setNativeFocusOwner,   shouldNativelyFocusHeavyweight,   upFocusCycle,   upFocusCycle
Methods from java.lang.Object:
clone,   equals,   finalize,   getClass,   hashCode,   notify,   notifyAll,   toString,   wait,   wait,   wait
Method from java.awt.KeyboardFocusManager Detail:
 public  void addKeyEventDispatcher(KeyEventDispatcher dispatcher) 
    Adds a KeyEventDispatcher to this KeyboardFocusManager's dispatcher chain. This KeyboardFocusManager will request that each KeyEventDispatcher dispatch KeyEvents generated by the user before finally dispatching the KeyEvent itself. KeyEventDispatchers will be notified in the order in which they were added. Notifications will halt as soon as one KeyEventDispatcher returns true from its dispatchKeyEvent method. There is no limit to the total number of KeyEventDispatchers which can be added, nor to the number of times which a particular KeyEventDispatcher instance can be added.

    If a null dispatcher is specified, no action is taken and no exception is thrown.

    In a multithreaded application, KeyEventDispatcher behaves the same as other AWT listeners. See AWT Threading Issues for more details.

 public  void addKeyEventPostProcessor(KeyEventPostProcessor processor) 
    Adds a KeyEventPostProcessor to this KeyboardFocusManager's post- processor chain. After a KeyEvent has been dispatched to and handled by its target, KeyboardFocusManager will request that each KeyEventPostProcessor perform any necessary post-processing as part of the KeyEvent's final resolution. KeyEventPostProcessors will be notified in the order in which they were added; the current KeyboardFocusManager will be notified last. Notifications will halt as soon as one KeyEventPostProcessor returns true from its postProcessKeyEvent method. There is no limit to the the total number of KeyEventPostProcessors that can be added, nor to the number of times that a particular KeyEventPostProcessor instance can be added.

    If a null post-processor is specified, no action is taken and no exception is thrown.

    In a multithreaded application, KeyEventPostProcessor behaves the same as other AWT listeners. See AWT Threading Issues for more details.

 public  void addPropertyChangeListener(PropertyChangeListener listener) 
    Adds a PropertyChangeListener to the listener list. The listener is registered for all bound properties of this class, including the following:
    • whether the KeyboardFocusManager is currently managing focus for this application or applet's browser context ("managingFocus")
    • the focus owner ("focusOwner")
    • the permanent focus owner ("permanentFocusOwner")
    • the focused Window ("focusedWindow")
    • the active Window ("activeWindow")
    • the default focus traversal policy ("defaultFocusTraversalPolicy")
    • the Set of default FORWARD_TRAVERSAL_KEYS ("forwardDefaultFocusTraversalKeys")
    • the Set of default BACKWARD_TRAVERSAL_KEYS ("backwardDefaultFocusTraversalKeys")
    • the Set of default UP_CYCLE_TRAVERSAL_KEYS ("upCycleDefaultFocusTraversalKeys")
    • the Set of default DOWN_CYCLE_TRAVERSAL_KEYS ("downCycleDefaultFocusTraversalKeys")
    • the current focus cycle root ("currentFocusCycleRoot")
    If listener is null, no exception is thrown and no action is performed.
 public  void addPropertyChangeListener(String propertyName,
    PropertyChangeListener listener) 
    Adds a PropertyChangeListener to the listener list for a specific property. The specified property may be user-defined, or one of the following:
    • whether the KeyboardFocusManager is currently managing focus for this application or applet's browser context ("managingFocus")
    • the focus owner ("focusOwner")
    • the permanent focus owner ("permanentFocusOwner")
    • the focused Window ("focusedWindow")
    • the active Window ("activeWindow")
    • the default focus traversal policy ("defaultFocusTraversalPolicy")
    • the Set of default FORWARD_TRAVERSAL_KEYS ("forwardDefaultFocusTraversalKeys")
    • the Set of default BACKWARD_TRAVERSAL_KEYS ("backwardDefaultFocusTraversalKeys")
    • the Set of default UP_CYCLE_TRAVERSAL_KEYS ("upCycleDefaultFocusTraversalKeys")
    • the Set of default DOWN_CYCLE_TRAVERSAL_KEYS ("downCycleDefaultFocusTraversalKeys")
    • the current focus cycle root ("currentFocusCycleRoot")
    If listener is null, no exception is thrown and no action is performed.
 public  void addVetoableChangeListener(VetoableChangeListener listener) 
    Adds a VetoableChangeListener to the listener list. The listener is registered for all vetoable properties of this class, including the following:
    • the focus owner ("focusOwner")
    • the permanent focus owner ("permanentFocusOwner")
    • the focused Window ("focusedWindow")
    • the active Window ("activeWindow")
    If listener is null, no exception is thrown and no action is performed.
 public  void addVetoableChangeListener(String propertyName,
    VetoableChangeListener listener) 
    Adds a VetoableChangeListener to the listener list for a specific property. The specified property may be user-defined, or one of the following:
    • the focus owner ("focusOwner")
    • the permanent focus owner ("permanentFocusOwner")
    • the focused Window ("focusedWindow")
    • the active Window ("activeWindow")
    If listener is null, no exception is thrown and no action is performed.
 public  void clearGlobalFocusOwner() 
    Clears the global focus owner at both the Java and native levels. If there exists a focus owner, that Component will receive a permanent FOCUS_LOST event. After this operation completes, the native windowing system will discard all user-generated KeyEvents until the user selects a new Component to receive focus, or a Component is given focus explicitly via a call to requestFocus(). This operation does not change the focused or active Windows.
  void clearMarkers() 
    Clears markers queue This method is not intended to be overridden by KFM's. Only DefaultKeyboardFocusManager can implement it.
 static  void clearMostRecentFocusOwner(Component comp) 
 abstract protected  void dequeueKeyEvents(long after,
    Component untilFocused)
    Called by the AWT to notify the KeyboardFocusManager that it should cancel delayed dispatching of KeyEvents. All KeyEvents which were enqueued because of a call to enqueueKeyEvents with the same timestamp and Component should be released for normal dispatching to the current focus owner. If the given timestamp is less than zero, the outstanding enqueue request for the given Component with the oldest timestamp (if any) should be cancelled.
 abstract protected  void discardKeyEvents(Component comp)
    Called by the AWT to notify the KeyboardFocusManager that it should cancel delayed dispatching of KeyEvents. All KeyEvents which were enqueued because of one or more calls to enqueueKeyEvents with the same Component should be discarded.
 abstract public boolean dispatchEvent(AWTEvent e)
    This method is called by the AWT event dispatcher requesting that the current KeyboardFocusManager dispatch the specified event on its behalf. It is expected that all KeyboardFocusManagers will dispatch all FocusEvents, all WindowEvents related to focus, and all KeyEvents. These events should be dispatched based on the KeyboardFocusManager's notion of the focus owner and the focused and active Windows, sometimes overriding the source of the specified AWTEvent. Dispatching must be done using redispatchEvent to prevent the AWT event dispatcher from recursively requesting that the KeyboardFocusManager dispatch the event again. If this method returns false, then the AWT event dispatcher will attempt to dispatch the event itself.
 abstract public boolean dispatchKeyEvent(KeyEvent e)
    Typically this method will be called by dispatchEvent if no other KeyEventDispatcher in the dispatcher chain dispatched the KeyEvent, or if no other KeyEventDispatchers are registered. If an implementation of this method returns false, dispatchEvent may try to dispatch the KeyEvent itself, or may simply return false. If true is returned, dispatchEvent should return true as well.
 public final  void downFocusCycle() 
    Moves the focus down one focus traversal cycle from the current focus owner, if and only if the current focus owner is a Container that is a focus cycle root. Typically, the focus owner is set to the current focus owner's default Component to focus, and the current focus cycle root is set to the current focus owner. If the current focus owner is not a Container that is a focus cycle root, then no focus traversal operation occurs.
 abstract public  void downFocusCycle(Container aContainer)
    Moves the focus down one focus traversal cycle. Typically, if aContainer is a focus cycle root, then the focus owner is set to aContainer's default Component to focus, and the current focus cycle root is set to aContainer. If aContainer is not a focus cycle root, then no focus traversal operation occurs.
  void dumpRequests() 
    Dumps the list of focus requests to stderr
 abstract protected  void enqueueKeyEvents(long after,
    Component untilFocused)
    Called by the AWT to notify the KeyboardFocusManager that it should delay dispatching of KeyEvents until the specified Component becomes the focus owner. If client code requests a focus change, and the AWT determines that this request might be granted by the native windowing system, then the AWT will call this method. It is the responsibility of the KeyboardFocusManager to delay dispatching of KeyEvents with timestamps later than the specified time stamp until the specified Component receives a FOCUS_GAINED event, or the AWT cancels the delay request by invoking dequeueKeyEvents or discardKeyEvents.
 protected  void firePropertyChange(String propertyName,
    Object oldValue,
    Object newValue) 
    Fires a PropertyChangeEvent in response to a change in a bound property. The event will be delivered to all registered PropertyChangeListeners. No event will be delivered if oldValue and newValue are the same.
 protected  void fireVetoableChange(String propertyName,
    Object oldValue,
    Object newValue) throws PropertyVetoException 
    Fires a PropertyChangeEvent in response to a change in a vetoable property. The event will be delivered to all registered VetoableChangeListeners. If a VetoableChangeListener throws a PropertyVetoException, a new event is fired reverting all VetoableChangeListeners to the old value and the exception is then rethrown. No event will be delivered if oldValue and newValue are the same.
 public final  void focusNextComponent() 
    Focuses the Component after the current focus owner.
 abstract public  void focusNextComponent(Component aComponent)
    Focuses the Component after aComponent, typically based on a FocusTraversalPolicy.
 public final  void focusPreviousComponent() 
    Focuses the Component before the current focus owner.
 abstract public  void focusPreviousComponent(Component aComponent)
    Focuses the Component before aComponent, typically based on a FocusTraversalPolicy.
 public Window getActiveWindow() 
    Returns the active Window, if the active Window is in the same context as the calling thread. Only a Frame or a Dialog can be the active Window. The native windowing system may denote the active Window or its children with special decorations, such as a highlighted title bar. The active Window is always either the focused Window, or the first Frame or Dialog that is an owner of the focused Window.
 public Container getCurrentFocusCycleRoot() 
    Returns the current focus cycle root, if the current focus cycle root is in the same context as the calling thread. If the focus owner is itself a focus cycle root, then it may be ambiguous as to which Components represent the next and previous Components to focus during normal focus traversal. In that case, the current focus cycle root is used to differentiate among the possibilities.

    This method is intended to be used only by KeyboardFocusManagers and focus implementations. It is not for general client use.

 public static KeyboardFocusManager getCurrentKeyboardFocusManager() 
    Returns the current KeyboardFocusManager instance for the calling thread's context.
 static synchronized KeyboardFocusManager getCurrentKeyboardFocusManager(AppContext appcontext) 
 final SequencedEvent getCurrentSequencedEvent() 
 Component getCurrentWaitingRequest(Component parent) 
 public Set<AWTKeyStroke> getDefaultFocusTraversalKeys(int id) 
    Returns a Set of default focus traversal keys for a given traversal operation. This traversal key Set will be in effect on all Windows that have no such Set of their own explicitly defined. This Set will also be inherited, recursively, by any child Component of those Windows that has no such Set of its own explicitly defined. (See setDefaultFocusTraversalKeys for a full description of each operation.)
 public synchronized FocusTraversalPolicy getDefaultFocusTraversalPolicy() 
    Returns the default FocusTraversalPolicy. Top-level components use this value on their creation to initialize their own focus traversal policy by explicit call to Container.setFocusTraversalPolicy.
 public Component getFocusOwner() 
    Returns the focus owner, if the focus owner is in the same context as the calling thread. The focus owner is defined as the Component in an application that will typically receive all KeyEvents generated by the user. KeyEvents which map to the focus owner's focus traversal keys will not be delivered if focus traversal keys are enabled for the focus owner. In addition, KeyEventDispatchers may retarget or consume KeyEvents before they reach the focus owner.
 public Window getFocusedWindow() 
    Returns the focused Window, if the focused Window is in the same context as the calling thread. The focused Window is the Window that is or contains the focus owner.
 protected Window getGlobalActiveWindow() throws SecurityException 
    Returns the active Window, even if the calling thread is in a different context than the active Window. Only a Frame or a Dialog can be the active Window. The native windowing system may denote the active Window or its children with special decorations, such as a highlighted title bar. The active Window is always either the focused Window, or the first Frame or Dialog that is an owner of the focused Window.

    This method will throw a SecurityException if this KeyboardFocusManager is not the current KeyboardFocusManager for the calling thread's context.

 protected Container getGlobalCurrentFocusCycleRoot() throws SecurityException 
    Returns the current focus cycle root, even if the calling thread is in a different context than the current focus cycle root. If the focus owner is itself a focus cycle root, then it may be ambiguous as to which Components represent the next and previous Components to focus during normal focus traversal. In that case, the current focus cycle root is used to differentiate among the possibilities.

    This method will throw a SecurityException if this KeyboardFocusManager is not the current KeyboardFocusManager for the calling thread's context.

 protected Component getGlobalFocusOwner() throws SecurityException 
    Returns the focus owner, even if the calling thread is in a different context than the focus owner. The focus owner is defined as the Component in an application that will typically receive all KeyEvents generated by the user. KeyEvents which map to the focus owner's focus traversal keys will not be delivered if focus traversal keys are enabled for the focus owner. In addition, KeyEventDispatchers may retarget or consume KeyEvents before they reach the focus owner.

    This method will throw a SecurityException if this KeyboardFocusManager is not the current KeyboardFocusManager for the calling thread's context.

 protected Window getGlobalFocusedWindow() throws SecurityException 
    Returns the focused Window, even if the calling thread is in a different context than the focused Window. The focused Window is the Window that is or contains the focus owner.

    This method will throw a SecurityException if this KeyboardFocusManager is not the current KeyboardFocusManager for the calling thread's context.

 protected Component getGlobalPermanentFocusOwner() throws SecurityException 
    Returns the permanent focus owner, even if the calling thread is in a different context than the permanent focus owner. The permanent focus owner is defined as the last Component in an application to receive a permanent FOCUS_GAINED event. The focus owner and permanent focus owner are equivalent unless a temporary focus change is currently in effect. In such a situation, the permanent focus owner will again be the focus owner when the temporary focus change ends.

    This method will throw a SecurityException if this KeyboardFocusManager is not the current KeyboardFocusManager for the calling thread's context.

 static Component getHeavyweight(Component comp) 
 protected synchronized List<KeyEventDispatcher> getKeyEventDispatchers() 
    Returns this KeyboardFocusManager's KeyEventDispatcher chain as a List. The List will not include this KeyboardFocusManager unless it was explicitly re-registered via a call to addKeyEventDispatcher. If no other KeyEventDispatchers are registered, implementations are free to return null or a List of length 0. Client code should not assume one behavior over another, nor should it assume that the behavior, once established, will not change.
 protected List<KeyEventPostProcessor> getKeyEventPostProcessors() 
    Returns this KeyboardFocusManager's KeyEventPostProcessor chain as a List. The List will not include this KeyboardFocusManager unless it was explicitly added via a call to addKeyEventPostProcessor. If no KeyEventPostProcessors are registered, implementations are free to return null or a List of length 0. Client code should not assume one behavior over another, nor should it assume that the behavior, once established, will not change.
 static synchronized Component getMostRecentFocusOwner(Window window) 
 Component getNativeFocusOwner() 
 Window getNativeFocusedWindow() 
 public Component getPermanentFocusOwner() 
    Returns the permanent focus owner, if the permanent focus owner is in the same context as the calling thread. The permanent focus owner is defined as the last Component in an application to receive a permanent FOCUS_GAINED event. The focus owner and permanent focus owner are equivalent unless a temporary focus change is currently in effect. In such a situation, the permanent focus owner will again be the focus owner when the temporary focus change ends.
 public synchronized PropertyChangeListener[] getPropertyChangeListeners() 
    Returns an array of all the property change listeners registered on this keyboard focus manager.
 public synchronized PropertyChangeListener[] getPropertyChangeListeners(String propertyName) 
    Returns an array of all the PropertyChangeListeners associated with the named property.
 public synchronized VetoableChangeListener[] getVetoableChangeListeners() 
    Returns an array of all the vetoable change listeners registered on this keyboard focus manager.
 public synchronized VetoableChangeListener[] getVetoableChangeListeners(String propertyName) 
    Returns an array of all the VetoableChangeListeners associated with the named property.
 static Set initFocusTraversalKeysSet(String value,
    Set targetSet) 
 static boolean isAutoFocusTransferEnabled() 
 static boolean isAutoFocusTransferEnabledFor(Component comp) 
 static boolean isProxyActive(KeyEvent e) 
 static Window markClearGlobalFocusOwner() 
    Returns the Window which will be active after processing this request, or null if this is a duplicate request. The active Window is useful because some native platforms do not support setting the native focus owner to null. On these platforms, the obvious choice is to set the focus owner to the focus proxy of the active Window.
 abstract public boolean postProcessKeyEvent(KeyEvent e)
    This method will be called by dispatchKeyEvent. By default, this method will handle any unconsumed KeyEvents that map to an AWT MenuShortcut by consuming the event and activating the shortcut.
 static  void processCurrentLightweightRequests() 
 abstract public  void processKeyEvent(Component focusedComponent,
    KeyEvent e)
    This method initiates a focus traversal operation if and only if the KeyEvent represents a focus traversal key for the specified focusedComponent. It is expected that focusedComponent is the current focus owner, although this need not be the case. If it is not, focus traversal will nevertheless proceed as if focusedComponent were the current focus owner.
 static boolean processSynchronousLightweightTransfer(Component heavyweight,
    Component descendant,
    boolean temporary,
    boolean focusedWindowChangeAllowed,
    long time) 
 public final  void redispatchEvent(Component target,
    AWTEvent e) 
    Redispatches an AWTEvent in such a way that the AWT event dispatcher will not recursively request that the KeyboardFocusManager, or any installed KeyEventDispatchers, dispatch the event again. Client implementations of dispatchEvent and client-defined KeyEventDispatchers must call redispatchEvent(target, e) instead of target.dispatchEvent(e) to dispatch an event.

    This method is intended to be used only by KeyboardFocusManagers and KeyEventDispatchers. It is not for general client use.

 static boolean removeFirstRequest() 
 public  void removeKeyEventDispatcher(KeyEventDispatcher dispatcher) 
    Removes a KeyEventDispatcher which was previously added to this KeyboardFocusManager's dispatcher chain. This KeyboardFocusManager cannot itself be removed, unless it was explicitly re-registered via a call to addKeyEventDispatcher.

    If a null dispatcher is specified, if the specified dispatcher is not in the dispatcher chain, or if this KeyboardFocusManager is specified without having been explicitly re-registered, no action is taken and no exception is thrown.

    In a multithreaded application, KeyEventDispatcher behaves the same as other AWT listeners. See AWT Threading Issues for more details.

 public  void removeKeyEventPostProcessor(KeyEventPostProcessor processor) 
    Removes a previously added KeyEventPostProcessor from this KeyboardFocusManager's post-processor chain. This KeyboardFocusManager cannot itself be entirely removed from the chain. Only additional references added via addKeyEventPostProcessor can be removed.

    If a null post-processor is specified, if the specified post-processor is not in the post-processor chain, or if this KeyboardFocusManager is specified without having been explicitly added, no action is taken and no exception is thrown.

    In a multithreaded application, KeyEventPostProcessor behaves the same as other AWT listeners. See AWT Threading Issues for more details.

 static  void removeLastFocusRequest(Component heavyweight) 
 public  void removePropertyChangeListener(PropertyChangeListener listener) 
    Removes a PropertyChangeListener from the listener list. This method should be used to remove the PropertyChangeListeners that were registered for all bound properties of this class.

    If listener is null, no exception is thrown and no action is performed.

 public  void removePropertyChangeListener(String propertyName,
    PropertyChangeListener listener) 
    Removes a PropertyChangeListener from the listener list for a specific property. This method should be used to remove PropertyChangeListeners that were registered for a specific bound property.

    If listener is null, no exception is thrown and no action is performed.

 public  void removeVetoableChangeListener(VetoableChangeListener listener) 
    Removes a VetoableChangeListener from the listener list. This method should be used to remove the VetoableChangeListeners that were registered for all vetoable properties of this class.

    If listener is null, no exception is thrown and no action is performed.

 public  void removeVetoableChangeListener(String propertyName,
    VetoableChangeListener listener) 
    Removes a VetoableChangeListener from the listener list for a specific property. This method should be used to remove VetoableChangeListeners that were registered for a specific bound property.

    If listener is null, no exception is thrown and no action is performed.

 static AWTEvent retargetFocusEvent(AWTEvent event) 
 static FocusEvent retargetFocusGained(FocusEvent fe) 
 static FocusEvent retargetFocusLost(FocusEvent fe) 
 static FocusEvent retargetUnexpectedFocusEvent(FocusEvent fe) 
 public static  void setCurrentKeyboardFocusManager(KeyboardFocusManager newManager) throws SecurityException 
    Sets the current KeyboardFocusManager instance for the calling thread's context. If null is specified, then the current KeyboardFocusManager is replaced with a new instance of DefaultKeyboardFocusManager.

    If a SecurityManager is installed, the calling thread must be granted the AWTPermission "replaceKeyboardFocusManager" in order to replace the the current KeyboardFocusManager. If this permission is not granted, this method will throw a SecurityException, and the current KeyboardFocusManager will be unchanged.

 final  void setCurrentSequencedEvent(SequencedEvent current) 
 public  void setDefaultFocusTraversalKeys(int id,
    Set<AWTKeyStroke> keystrokes) 
    Sets the default focus traversal keys for a given traversal operation. This traversal key Set will be in effect on all Windows that have no such Set of their own explicitly defined. This Set will also be inherited, recursively, by any child Component of those Windows that has no such Set of its own explicitly defined.

    The default values for the default focus traversal keys are implementation-dependent. Sun recommends that all implementations for a particular native platform use the same default values. The recommendations for Windows and Unix are listed below. These recommendations are used in the Sun AWT implementations.
    Identifier Meaning Default
    KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS Normal forward keyboard traversal TAB on KEY_PRESSED, CTRL-TAB on KEY_PRESSED
    KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS Normal reverse keyboard traversal SHIFT-TAB on KEY_PRESSED, CTRL-SHIFT-TAB on KEY_PRESSED
    KeyboardFocusManager.UP_CYCLE_TRAVERSAL_KEYS Go up one focus traversal cycle none
    KeyboardFocusManager.DOWN_CYCLE_TRAVERSAL_KEYS Go down one focus traversal cycle none
    To disable a traversal key, use an empty Set; Collections.EMPTY_SET is recommended.

    Using the AWTKeyStroke API, client code can specify on which of two specific KeyEvents, KEY_PRESSED or KEY_RELEASED, the focus traversal operation will occur. Regardless of which KeyEvent is specified, however, all KeyEvents related to the focus traversal key, including the associated KEY_TYPED event, will be consumed, and will not be dispatched to any Component. It is a runtime error to specify a KEY_TYPED event as mapping to a focus traversal operation, or to map the same event to multiple default focus traversal operations.

 public  void setDefaultFocusTraversalPolicy(FocusTraversalPolicy defaultPolicy) 
    Sets the default FocusTraversalPolicy. Top-level components use this value on their creation to initialize their own focus traversal policy by explicit call to Container.setFocusTraversalPolicy. Note: this call doesn't affect already created components as they have their policy initialized. Only new components will use this policy as their default policy.
 protected  void setGlobalActiveWindow(Window activeWindow) 
    Sets the active Window. Only a Frame or a Dialog can be the active Window. The native windowing system may denote the active Window or its children with special decorations, such as a highlighted title bar. The active Window is always either the focused Window, or the first Frame or Dialog that is an owner of the focused Window.

    This method does not actually change the active Window as far as the native windowing system is concerned. It merely stores the value to be subsequently returned by getActiveWindow(). Use Component.requestFocus() or Component.requestFocusInWindow()to change the active Window, subject to platform limitations.

 public  void setGlobalCurrentFocusCycleRoot(Container newFocusCycleRoot) 
    Sets the current focus cycle root. If the focus owner is itself a focus cycle root, then it may be ambiguous as to which Components represent the next and previous Components to focus during normal focus traversal. In that case, the current focus cycle root is used to differentiate among the possibilities.

    This method is intended to be used only by KeyboardFocusManagers and focus implementations. It is not for general client use.

 protected  void setGlobalFocusOwner(Component focusOwner) 
    Sets the focus owner. The operation will be cancelled if the Component is not focusable. The focus owner is defined as the Component in an application that will typically receive all KeyEvents generated by the user. KeyEvents which map to the focus owner's focus traversal keys will not be delivered if focus traversal keys are enabled for the focus owner. In addition, KeyEventDispatchers may retarget or consume KeyEvents before they reach the focus owner.

    This method does not actually set the focus to the specified Component. It merely stores the value to be subsequently returned by getFocusOwner(). Use Component.requestFocus() or Component.requestFocusInWindow() to change the focus owner, subject to platform limitations.

 protected  void setGlobalFocusedWindow(Window focusedWindow) 
    Sets the focused Window. The focused Window is the Window that is or contains the focus owner. The operation will be cancelled if the specified Window to focus is not a focusable Window.

    This method does not actually change the focused Window as far as the native windowing system is concerned. It merely stores the value to be subsequently returned by getFocusedWindow(). Use Component.requestFocus() or Component.requestFocusInWindow() to change the focused Window, subject to platform limitations.

 protected  void setGlobalPermanentFocusOwner(Component permanentFocusOwner) 
    Sets the permanent focus owner. The operation will be cancelled if the Component is not focusable. The permanent focus owner is defined as the last Component in an application to receive a permanent FOCUS_GAINED event. The focus owner and permanent focus owner are equivalent unless a temporary focus change is currently in effect. In such a situation, the permanent focus owner will again be the focus owner when the temporary focus change ends.

    This method does not actually set the focus to the specified Component. It merely stores the value to be subsequently returned by getPermanentFocusOwner(). Use Component.requestFocus() or Component.requestFocusInWindow() to change the focus owner, subject to platform limitations.

 static  void setMostRecentFocusOwner(Component component) 
 static synchronized  void setMostRecentFocusOwner(Window window,
    Component component) 
  void setNativeFocusOwner(Component comp) 
 static int shouldNativelyFocusHeavyweight(Component heavyweight,
    Component descendant,
    boolean temporary,
    boolean focusedWindowChangeAllowed,
    long time,
    Cause cause) 
    Indicates whether the native implementation should proceed with a pending, native focus request. Before changing the focus at the native level, the AWT implementation should always call this function for permission. This function will reject the request if a duplicate request preceded it, or if the specified heavyweight Component already owns the focus and no native focus changes are pending. Otherwise, the request will be approved and the focus request list will be updated so that, if necessary, the proper descendant will be focused when the corresponding FOCUS_GAINED event on the heavyweight is received. An implementation must ensure that calls to this method and native focus changes are atomic. If this is not guaranteed, then the ordering of the focus request list may be incorrect, leading to errors in the type-ahead mechanism. Typically this is accomplished by only calling this function from the native event pumping thread, or by holding a global, native lock during invocation.
 public final  void upFocusCycle() 
    Moves the focus up one focus traversal cycle from the current focus owner. Typically, the new focus owner is set to the current focus owner's focus cycle root, and the current focus cycle root is set to the new focus owner's focus cycle root. If, however, the current focus owner's focus cycle root is a Window, then typically the focus owner is set to the focus cycle root's default Component to focus, and the current focus cycle root is unchanged.
 abstract public  void upFocusCycle(Component aComponent)
    Moves the focus up one focus traversal cycle. Typically, the focus owner is set to aComponent's focus cycle root, and the current focus cycle root is set to the new focus owner's focus cycle root. If, however, aComponent's focus cycle root is a Window, then typically the focus owner is set to the Window's default Component to focus, and the current focus cycle root is unchanged.