javax/swing/FocusManager.java

/* FocusManager.java --
   Copyright (C) 2002, 2004  Free Software Foundation, Inc.

This file is part of GNU Classpath.

GNU Classpath is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA.

Linking this library statically or dynamically with other modules is
making a combined work based on this library.  Thus, the terms and
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As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent
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this exception to your version of the library, but you are not
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package javax.swing;

import java.awt.AWTEvent;
import java.awt.Component;
import java.awt.Container;
import java.awt.DefaultKeyboardFocusManager;
import java.awt.FocusTraversalPolicy;
import java.awt.KeyEventDispatcher;
import java.awt.KeyEventPostProcessor;
import java.awt.KeyboardFocusManager;
import java.awt.Window;
import java.awt.event.KeyEvent;
import java.beans.PropertyChangeListener;
import java.beans.VetoableChangeListener;
import java.util.Set;

/**
 * This class has been obsoleted by the new
 * {@link java.awt.KeyboardFocusManager} and
 * {@link java.awt.DefaultKeyboardFocusManager} API.
 *
 * @author Andrew Selkirk
 */
public abstract class FocusManager
  extends DefaultKeyboardFocusManager
{
  /**
   * A FocusManager that wraps an AWT KeyboardFocusManager and forwards all
   * method calls to it. This is used for compatibility with the new focus
   * system.
   *
   * @author Roman Kennke (kennke@aicas.com)
   */
  private static class WrappingFocusManager
    extends FocusManager
  {
    /**
     * The wrapped KeyboardFocusManager.
     */
    private KeyboardFocusManager wrapped;

    /**
     * Creates a new instance of WrappedFocusManager.
     *
     * @param fm the focus manager to wrap
     */
    WrappingFocusManager(KeyboardFocusManager fm)
    {
      wrapped = fm;
    }

    /**
     * Wraps {@link DefaultKeyboardFocusManager#dispatchEvent(AWTEvent)}.
     *
     * @param ev the event to dispatch
     *
     * @return <code>true</code> if the event has been dispatched,
     *         <code>false</code> otherwise
     */
    public boolean dispatchEvent(AWTEvent ev)
    {
      return wrapped.dispatchEvent(ev);
    }

    /**
     * Wraps {@link DefaultKeyboardFocusManager#dispatchKeyEvent(KeyEvent)}.
     *
     * @param ev the event to dispatch
     *
     * @return <code>true</code> if the event has been dispatched,
     *         <code>false</code> otherwise
     */
    public boolean dispatchKeyEvent(KeyEvent ev)
    {
      return wrapped.dispatchKeyEvent(ev);
    }

    /**
     * Wraps {@link DefaultKeyboardFocusManager#downFocusCycle(Container)}.
     *
     * @param c the container
     */
    public void downFocusCycle(Container c)
    {
      wrapped.downFocusCycle(c);
    }

    /**
     * Wraps {@link DefaultKeyboardFocusManager#upFocusCycle(Container)}.
     *
     * @param c the container
     */
    public void upFocusCycle(Container c)
    {
      wrapped.upFocusCycle(c);
    }

    /**
     * Wraps {@link DefaultKeyboardFocusManager#focusNextComponent(Component)}.
     *
     * @param c the component
     */
    public void focusNextComponent(Component c)
    {
      wrapped.focusNextComponent(c);
    }

    /**
     * Wraps
     * {@link DefaultKeyboardFocusManager#focusPreviousComponent(Component)}.
     *
     * @param c the component
     */
    public void focusPreviousComponent(Component c)
    {
      wrapped.focusPreviousComponent(c);
    }

    /**
     * Wraps {@link DefaultKeyboardFocusManager#postProcessKeyEvent(KeyEvent)}.
     *
     * @param e the key event
     *
     * @return a boolead
     */
    public boolean postProcessKeyEvent(KeyEvent e)
    {
      return wrapped.postProcessKeyEvent(e);
    }

    /**
     * Wraps
     * {@link DefaultKeyboardFocusManager#processKeyEvent(Component, KeyEvent)}.
     *
     * @param c the component
     * @param e the key event
     */
    public void processKeyEvent(Component c, KeyEvent e)
    {
      wrapped.processKeyEvent(c, e);
    }

    /**
     * Wraps
     * {@link KeyboardFocusManager#addKeyEventDispatcher(KeyEventDispatcher)}.
     *
     * @param d the dispatcher
     */
    public void addKeyEventDispatcher(KeyEventDispatcher d)
    {
      wrapped.addKeyEventDispatcher(d);
    }

    /**
     * Wraps
     * {@link KeyboardFocusManager#addKeyEventPostProcessor(KeyEventPostProcessor)}.
     *
     * @param p the post processor
     */
    public void addKeyEventPostProcessor(KeyEventPostProcessor p)
    {
      wrapped.addKeyEventPostProcessor(p);
    }

    /**
     * Wraps {@link KeyboardFocusManager#addPropertyChangeListener(PropertyChangeListener)}.
     *
     * @param l the property change listener
     */
    public void addPropertyChangeListener(PropertyChangeListener l)
    {
      wrapped.addPropertyChangeListener(l);
    }

    /**
     * Wraps {@link KeyboardFocusManager#addPropertyChangeListener(String, PropertyChangeListener)}.
     *
     * @param p the property name
     * @param l the property change listener
     */
    public void addPropertyChangeListener(String p, PropertyChangeListener l)
    {
      wrapped.addPropertyChangeListener(p, l);
    }

    /**
     * Wraps {@link KeyboardFocusManager#addVetoableChangeListener(String, VetoableChangeListener)}.
     *
     * @param p the property name
     * @param l the vetoable change listener
     */
    public void addVetoableChangeListener(String p, VetoableChangeListener l)
    {
      wrapped.addVetoableChangeListener(p, l);
    }

    /**
     * Wraps {@link KeyboardFocusManager#addVetoableChangeListener(VetoableChangeListener)}.
     *
     * @param l the vetoable change listener
     */
    public void addVetoableChangeListener(VetoableChangeListener l)
    {
      wrapped.addVetoableChangeListener(l);
    }

    /**
     * Wraps {@link KeyboardFocusManager#clearGlobalFocusOwner()}.
     */
    public void clearGlobalFocusOwner()
    {
      wrapped.clearGlobalFocusOwner();
    }

    /**
     * Wraps {@link KeyboardFocusManager#getActiveWindow()}.
     *
     * @return the active window
     */
    public Window getActiveWindow()
    {
      return wrapped.getActiveWindow();
    }

    /**
     * Wraps {@link KeyboardFocusManager#getCurrentFocusCycleRoot()}.
     *
     * @return the focus cycle root
     */
    public Container getCurrentFocusCycleRoot()
    {
      return wrapped.getCurrentFocusCycleRoot();
    }

    /**
     * Wraps {@link KeyboardFocusManager#getDefaultFocusTraversalKeys(int)}.
     *
     * @param i the ID
     *
     * @return the focus traversal keys
     */
    public Set getDefaultFocusTraversalKeys(int i)
    {
      return wrapped.getDefaultFocusTraversalKeys(i);
    }

    /**
     * Wraps {@link KeyboardFocusManager#getDefaultFocusTraversalPolicy()}.
     *
     * @return the focus traversal policy
     */
    public FocusTraversalPolicy getDefaultFocusTraversalPolicy()
    {
      return wrapped.getDefaultFocusTraversalPolicy();
    }

    /**
     * Wraps {@link KeyboardFocusManager#getFocusedWindow()}.
     *
     * @return the focused window
     */
    public Window getFocusedWindow()
    {
      return wrapped.getFocusedWindow();
    }

    /**
     * Wraps {@link KeyboardFocusManager#getFocusOwner()}.
     *
     * @return the focus owner
     */
    public Component getFocusOwner()
    {
      return wrapped.getFocusOwner();
    }

    /**
     * Wraps {@link KeyboardFocusManager#getPermanentFocusOwner()}.
     *
     * @return the focus owner
     */
    public Component getPermanentFocusOwner()
    {
      return wrapped.getPermanentFocusOwner();
    }

    /**
     * Wraps {@link KeyboardFocusManager#getPropertyChangeListeners()}.
     *
     * @return the property change listeners
     */
    public PropertyChangeListener[] getPropertyChangeListeners()
    {
      return wrapped.getPropertyChangeListeners();
    }

    /**
     * Wraps {@link KeyboardFocusManager#getPropertyChangeListeners(String)}.
     *
     * @param n the property name
     *
     * @return the property change listeners
     */
    public PropertyChangeListener[] getPropertyChangeListeners(String n)
    {
      return wrapped.getPropertyChangeListeners(n);
    }

    /**
     * Wraps {@link KeyboardFocusManager#getVetoableChangeListeners()}.
     *
     * @return the vetoable change listeners
     */
    public VetoableChangeListener[] getVetoableChangeListeners()
    {
      return wrapped.getVetoableChangeListeners();
    }

    /**
     * Wraps {@link KeyboardFocusManager#getVetoableChangeListeners(String)}.
     *
     * @param n the property name
     *
     * @return the vetoable change listeners
     */
    public VetoableChangeListener[] getVetoableChangeListeners(String n)
    {
      return wrapped.getVetoableChangeListeners(n);
    }


    /**
     * Wraps
     * {@link KeyboardFocusManager#removeKeyEventDispatcher(KeyEventDispatcher)}.
     *
     * @param d the key event dispatcher to remove
     */
    public void removeKeyEventDispatcher(KeyEventDispatcher d)
    {
      wrapped.removeKeyEventDispatcher(d);
    }

    /**
     * Wraps
     * {@link KeyboardFocusManager#removeKeyEventPostProcessor(KeyEventPostProcessor)}.
     *
     * @param p the post processor
     */
    public void removeKeyEventPostProcessor(KeyEventPostProcessor p)
    {
      wrapped.removeKeyEventPostProcessor(p);
    }

    /**
     * Wraps
     * {@link KeyboardFocusManager#removePropertyChangeListener(PropertyChangeListener)}.
     *
     * @param l the listener
     */
    public void removePropertyChangeListener(PropertyChangeListener l)
    {
      wrapped.removePropertyChangeListener(l);
    }

    /**
     * Wraps
     * {@link KeyboardFocusManager#removePropertyChangeListener(String, PropertyChangeListener)}.
     *
     * @param n the property name
     * @param l the listener
     */
    public void removePropertyChangeListener(String n, PropertyChangeListener l)
    {
      wrapped.removePropertyChangeListener(n, l);
    }

    /**
     * Wraps
     * {@link KeyboardFocusManager#removeVetoableChangeListener(VetoableChangeListener)}.
     *
     * @param l the listener
     */
    public void removeVetoableChangeListener(VetoableChangeListener l)
    {
      wrapped.removeVetoableChangeListener(l);
    }

    /**
     * Wraps
     * {@link KeyboardFocusManager#removeVetoableChangeListener(String, VetoableChangeListener)}.
     *
     * @param n the property name
     * @param l the listener
     */
    public void removeVetoableChangeListener(String n, VetoableChangeListener l)
    {
      wrapped.removeVetoableChangeListener(n, l);
    }

    /**
     * Wraps
     * {@link KeyboardFocusManager#setDefaultFocusTraversalKeys(int, Set)}.
     *
     * @param id the ID
     * @param k the keystrokes
     */
    public void setDefaultFocusTraversalKeys(int id, Set k)
    {
      wrapped.setDefaultFocusTraversalKeys(id, k);
    }

    /**
     * Wraps {@link KeyboardFocusManager#setDefaultFocusTraversalPolicy(FocusTraversalPolicy)}.
     *
     * @param p the focus traversal policy
     */
    public void setDefaultFocusTraversalPolicy(FocusTraversalPolicy p)
    {
      wrapped.setDefaultFocusTraversalPolicy(p);
    }

    /**
     * Wraps
     * {@link KeyboardFocusManager#setGlobalCurrentFocusCycleRoot(Container)}.
     *
     * @param r the focus cycle root
     */
    public void setGlobalCurrentFocusCycleRoot(Container r)
    {
      wrapped.setGlobalCurrentFocusCycleRoot(r);
    }
  }

  /**
   * FOCUS_MANAGER_CLASS_PROPERTY
   */
  public static final String FOCUS_MANAGER_CLASS_PROPERTY =
    "FocusManagerClassName";

  /**
   * Constructor FocusManager
   */
  public FocusManager()
  {
    super();
  }

  /**
   * getCurrentManager
   * @returns FocusManager
   */
  public static FocusManager getCurrentManager()
  {
    KeyboardFocusManager m =
      KeyboardFocusManager.getCurrentKeyboardFocusManager();
    return new WrappingFocusManager(m);
  }

  /**
   * setCurrentManager
   * @param manager TODO
   */
  public static void setCurrentManager(FocusManager manager)
  {
    KeyboardFocusManager.setCurrentKeyboardFocusManager(manager);
  }

  /**
   * disableSwingFocusManager
   * @deprecated 1.4
   */
  public static void disableSwingFocusManager()
  {
    // TODO
  }

  /**
   * isFocusManagerEnabled
   * @return boolean
   * @deprecated 1.4
   */
  public static boolean isFocusManagerEnabled()
  {
    return false; // TODO
  }
}