jdk/src/share/classes/javax/swing/DelegatingDefaultFocusManager.java
changeset 2 90ce3da70b43
child 5506 202f599c92aa
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/javax/swing/DelegatingDefaultFocusManager.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,162 @@
+/*
+ * Copyright 2001-2004 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+package javax.swing;
+
+import java.awt.*;
+import java.awt.event.*;
+import java.beans.*;
+import java.util.Set;
+
+
+/**
+ * Provides a javax.swing.DefaultFocusManager view onto an arbitrary
+ * java.awt.KeyboardFocusManager. We subclass DefaultFocusManager instead of
+ * FocusManager because it seems more backward-compatible. It is likely that
+ * some pre-1.4 code assumes that the object returned by
+ * FocusManager.getCurrentManager is an instance of DefaultFocusManager unless
+ * set explicitly.
+ */
+final class DelegatingDefaultFocusManager extends DefaultFocusManager {
+    private final KeyboardFocusManager delegate;
+
+    DelegatingDefaultFocusManager(KeyboardFocusManager delegate) {
+        this.delegate = delegate;
+        setDefaultFocusTraversalPolicy(gluePolicy);
+    }
+
+    KeyboardFocusManager getDelegate() {
+        return delegate;
+    }
+
+    // Legacy methods which first appeared in javax.swing.FocusManager.
+    // Client code is most likely to invoke these methods.
+
+    public void processKeyEvent(Component focusedComponent, KeyEvent e) {
+        delegate.processKeyEvent(focusedComponent, e);
+    }
+    public void focusNextComponent(Component aComponent) {
+        delegate.focusNextComponent(aComponent);
+    }
+    public void focusPreviousComponent(Component aComponent) {
+        delegate.focusPreviousComponent(aComponent);
+    }
+
+    // Make sure that we delegate all new methods in KeyboardFocusManager
+    // as well as the legacy methods from Swing. It is theoretically possible,
+    // although unlikely, that a client app will treat this instance as a
+    // new-style KeyboardFocusManager. We might as well be safe.
+    //
+    // The JLS won't let us override the protected methods in
+    // KeyboardFocusManager such that they invoke the corresponding methods on
+    // the delegate. However, since client code would never be able to call
+    // those methods anyways, we don't have to worry about that problem.
+
+    public Component getFocusOwner() {
+        return delegate.getFocusOwner();
+    }
+    public void clearGlobalFocusOwner() {
+        delegate.clearGlobalFocusOwner();
+    }
+    public Component getPermanentFocusOwner() {
+        return delegate.getPermanentFocusOwner();
+    }
+    public Window getFocusedWindow() {
+        return delegate.getFocusedWindow();
+    }
+    public Window getActiveWindow() {
+        return delegate.getActiveWindow();
+    }
+    public FocusTraversalPolicy getDefaultFocusTraversalPolicy() {
+        return delegate.getDefaultFocusTraversalPolicy();
+    }
+    public void setDefaultFocusTraversalPolicy(FocusTraversalPolicy
+                                               defaultPolicy) {
+        if (delegate != null) {
+            // Will be null when invoked from supers constructor.
+            delegate.setDefaultFocusTraversalPolicy(defaultPolicy);
+        }
+    }
+    public void
+        setDefaultFocusTraversalKeys(int id,
+                                     Set<? extends AWTKeyStroke> keystrokes)
+    {
+        delegate.setDefaultFocusTraversalKeys(id, keystrokes);
+    }
+    public Set<AWTKeyStroke> getDefaultFocusTraversalKeys(int id) {
+        return delegate.getDefaultFocusTraversalKeys(id);
+    }
+    public Container getCurrentFocusCycleRoot() {
+        return delegate.getCurrentFocusCycleRoot();
+    }
+    public void setGlobalCurrentFocusCycleRoot(Container newFocusCycleRoot) {
+        delegate.setGlobalCurrentFocusCycleRoot(newFocusCycleRoot);
+    }
+    public void addPropertyChangeListener(PropertyChangeListener listener) {
+        delegate.addPropertyChangeListener(listener);
+    }
+    public void removePropertyChangeListener(PropertyChangeListener listener) {
+        delegate.removePropertyChangeListener(listener);
+    }
+    public void addPropertyChangeListener(String propertyName,
+                                          PropertyChangeListener listener) {
+        delegate.addPropertyChangeListener(propertyName, listener);
+    }
+    public void removePropertyChangeListener(String propertyName,
+                                             PropertyChangeListener listener) {
+        delegate.removePropertyChangeListener(propertyName, listener);
+    }
+    public void addVetoableChangeListener(VetoableChangeListener listener) {
+        delegate.addVetoableChangeListener(listener);
+    }
+    public void removeVetoableChangeListener(VetoableChangeListener listener) {
+        delegate.removeVetoableChangeListener(listener);
+    }
+    public void addVetoableChangeListener(String propertyName,
+                                          VetoableChangeListener listener) {
+        delegate.addVetoableChangeListener(propertyName, listener);
+    }
+    public void removeVetoableChangeListener(String propertyName,
+                                             VetoableChangeListener listener) {
+        delegate.removeVetoableChangeListener(propertyName, listener);
+    }
+    public void addKeyEventDispatcher(KeyEventDispatcher dispatcher) {
+        delegate.addKeyEventDispatcher(dispatcher);
+    }
+    public void removeKeyEventDispatcher(KeyEventDispatcher dispatcher) {
+        delegate.removeKeyEventDispatcher(dispatcher);
+    }
+    public boolean dispatchEvent(AWTEvent e) {
+        return delegate.dispatchEvent(e);
+    }
+    public boolean dispatchKeyEvent(KeyEvent e) {
+        return delegate.dispatchKeyEvent(e);
+    }
+    public void upFocusCycle(Component aComponent) {
+        delegate.upFocusCycle(aComponent);
+    }
+    public void downFocusCycle(Container aContainer) {
+        delegate.downFocusCycle(aContainer);
+    }
+}