1 /*
2 * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
25 package javax.swing;
26
27 import java.awt.FocusTraversalPolicy;
28 import java.awt.Component;
29 import java.awt.Container;
30 import java.awt.Window;
31 import java.util.HashMap;
32 import java.util.HashSet;
33 import java.io.*;
34
35
36 /**
37 * A FocusTraversalPolicy which provides support for legacy applications which
38 * handle focus traversal via JComponent.setNextFocusableComponent or by
39 * installing a custom DefaultFocusManager. If a specific traversal has not
40 * been hard coded, then that traversal is provided either by the custom
41 * DefaultFocusManager, or by a wrapped FocusTraversalPolicy instance.
42 *
43 * @author David Mendenhall
44 */
45 final class LegacyGlueFocusTraversalPolicy extends FocusTraversalPolicy
46 implements Serializable
47 {
48 private transient FocusTraversalPolicy delegatePolicy;
49 private transient DefaultFocusManager delegateManager;
50
51 private HashMap<Component, Component> forwardMap = new HashMap<Component, Component>(),
52 backwardMap = new HashMap<Component, Component>();
53
54 LegacyGlueFocusTraversalPolicy(FocusTraversalPolicy delegatePolicy) {
55 this.delegatePolicy = delegatePolicy;
56 }
57 LegacyGlueFocusTraversalPolicy(DefaultFocusManager delegateManager) {
58 this.delegateManager = delegateManager;
59 }
60
61 void setNextFocusableComponent(Component left, Component right) {
62 forwardMap.put(left, right);
63 backwardMap.put(right, left);
64 }
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1 /*
2 * Copyright (c) 2000, 2014, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
25 package javax.swing;
26
27 import java.awt.FocusTraversalPolicy;
28 import java.awt.Component;
29 import java.awt.Container;
30 import java.awt.Window;
31 import java.util.HashMap;
32 import java.util.HashSet;
33 import java.io.*;
34
35
36 /**
37 * A FocusTraversalPolicy which provides support for legacy applications which
38 * handle focus traversal via JComponent.setNextFocusableComponent or by
39 * installing a custom DefaultFocusManager. If a specific traversal has not
40 * been hard coded, then that traversal is provided either by the custom
41 * DefaultFocusManager, or by a wrapped FocusTraversalPolicy instance.
42 *
43 * @author David Mendenhall
44 */
45 @SuppressWarnings("serial") // JDK-implementation class
46 final class LegacyGlueFocusTraversalPolicy extends FocusTraversalPolicy
47 implements Serializable
48 {
49 private transient FocusTraversalPolicy delegatePolicy;
50 private transient DefaultFocusManager delegateManager;
51
52 private HashMap<Component, Component> forwardMap = new HashMap<Component, Component>(),
53 backwardMap = new HashMap<Component, Component>();
54
55 LegacyGlueFocusTraversalPolicy(FocusTraversalPolicy delegatePolicy) {
56 this.delegatePolicy = delegatePolicy;
57 }
58 LegacyGlueFocusTraversalPolicy(DefaultFocusManager delegateManager) {
59 this.delegateManager = delegateManager;
60 }
61
62 void setNextFocusableComponent(Component left, Component right) {
63 forwardMap.put(left, right);
64 backwardMap.put(right, left);
65 }
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