Java™ Platform
Standard Ed. 6

javax.swing
Class FocusManager

java.lang.Object
  extended by java.awt.KeyboardFocusManager
      extended by java.awt.DefaultKeyboardFocusManager
          extended by javax.swing.FocusManager
All Implemented Interfaces:
KeyEventDispatcher, KeyEventPostProcessor
Direct Known Subclasses:
DefaultFocusManager

public abstract class FocusManager
extends DefaultKeyboardFocusManager

This class has been obsoleted by the 1.4 focus APIs. While client code may still use this class, developers are strongly encouraged to use java.awt.KeyboardFocusManager and java.awt.DefaultKeyboardFocusManager instead.

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

See Also:
Focus Specification

Field Summary
static String FOCUS_MANAGER_CLASS_PROPERTY
          This field is obsolete, and its use is discouraged since its specification is incompatible with the 1.4 focus APIs.
 
Fields inherited from class java.awt.KeyboardFocusManager
BACKWARD_TRAVERSAL_KEYS, DOWN_CYCLE_TRAVERSAL_KEYS, FORWARD_TRAVERSAL_KEYS, UP_CYCLE_TRAVERSAL_KEYS
 
Constructor Summary
FocusManager()
           
 
Method Summary
static void disableSwingFocusManager()
          Deprecated. as of 1.4, replaced by KeyboardFocusManager.setDefaultFocusTraversalPolicy(FocusTraversalPolicy)
static FocusManager getCurrentManager()
          Returns the current KeyboardFocusManager instance for the calling thread's context.
static boolean isFocusManagerEnabled()
          Deprecated. As of 1.4, replaced by KeyboardFocusManager.getDefaultFocusTraversalPolicy()
static void setCurrentManager(FocusManager aFocusManager)
          Sets the current KeyboardFocusManager instance for the calling thread's context.
 
Methods inherited from class java.awt.DefaultKeyboardFocusManager
dequeueKeyEvents, discardKeyEvents, dispatchEvent, dispatchKeyEvent, downFocusCycle, enqueueKeyEvents, focusNextComponent, focusPreviousComponent, postProcessKeyEvent, processKeyEvent, upFocusCycle
 
Methods inherited from class java.awt.KeyboardFocusManager
addKeyEventDispatcher, addKeyEventPostProcessor, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, addVetoableChangeListener, clearGlobalFocusOwner, downFocusCycle, firePropertyChange, fireVetoableChange, focusNextComponent, focusPreviousComponent, getActiveWindow, getCurrentFocusCycleRoot, getCurrentKeyboardFocusManager, getDefaultFocusTraversalKeys, getDefaultFocusTraversalPolicy, getFocusedWindow, getFocusOwner, getGlobalActiveWindow, getGlobalCurrentFocusCycleRoot, getGlobalFocusedWindow, getGlobalFocusOwner, getGlobalPermanentFocusOwner, getKeyEventDispatchers, getKeyEventPostProcessors, getPermanentFocusOwner, getPropertyChangeListeners, getPropertyChangeListeners, getVetoableChangeListeners, getVetoableChangeListeners, redispatchEvent, removeKeyEventDispatcher, removeKeyEventPostProcessor, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, removeVetoableChangeListener, setCurrentKeyboardFocusManager, setDefaultFocusTraversalKeys, setDefaultFocusTraversalPolicy, setGlobalActiveWindow, setGlobalCurrentFocusCycleRoot, setGlobalFocusedWindow, setGlobalFocusOwner, setGlobalPermanentFocusOwner, upFocusCycle
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

FOCUS_MANAGER_CLASS_PROPERTY

public static final String FOCUS_MANAGER_CLASS_PROPERTY
This field is obsolete, and its use is discouraged since its specification is incompatible with the 1.4 focus APIs. The current FocusManager is no longer a property of the UI. Client code must query for the current FocusManager using KeyboardFocusManager.getCurrentKeyboardFocusManager(). See the Focus Specification for more information.

See Also:
KeyboardFocusManager.getCurrentKeyboardFocusManager(), Focus Specification, Constant Field Values
Constructor Detail

FocusManager

public FocusManager()
Method Detail

getCurrentManager

public static FocusManager getCurrentManager()
Returns the current KeyboardFocusManager instance for the calling thread's context.

Returns:
this thread's context's KeyboardFocusManager
See Also:
setCurrentManager(javax.swing.FocusManager)

setCurrentManager

public static void setCurrentManager(FocusManager aFocusManager)
                              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.

Parameters:
aFocusManager - the new KeyboardFocusManager for this thread's context
Throws:
SecurityException - if the calling thread does not have permission to replace the current KeyboardFocusManager
See Also:
getCurrentManager(), DefaultKeyboardFocusManager

disableSwingFocusManager

@Deprecated
public static void disableSwingFocusManager()
Deprecated. as of 1.4, replaced by KeyboardFocusManager.setDefaultFocusTraversalPolicy(FocusTraversalPolicy)

Changes the current KeyboardFocusManager's default FocusTraversalPolicy to DefaultFocusTraversalPolicy.

See Also:
DefaultFocusTraversalPolicy, KeyboardFocusManager.setDefaultFocusTraversalPolicy(java.awt.FocusTraversalPolicy)

isFocusManagerEnabled

@Deprecated
public static boolean isFocusManagerEnabled()
Deprecated. As of 1.4, replaced by KeyboardFocusManager.getDefaultFocusTraversalPolicy()

Returns whether the application has invoked disableSwingFocusManager().

See Also:
disableSwingFocusManager()

Java™ Platform
Standard Ed. 6

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For further API reference and developer documentation, see Java SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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