1 /*
2 * Copyright (c) 1997, 2013, 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
29 import java.awt.FocusTraversalPolicy;
30 import java.util.Comparator;
31
32
33 /**
34 * This class has been obsoleted by the 1.4 focus APIs. While client code may
35 * still use this class, developers are strongly encouraged to use
36 * <code>java.awt.KeyboardFocusManager</code> and
37 * <code>java.awt.DefaultKeyboardFocusManager</code> instead.
38 * <p>
39 * Please see
40 * <a href="http://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
41 * How to Use the Focus Subsystem</a>,
42 * a section in <em>The Java Tutorial</em>, and the
43 * <a href="../../java/awt/doc-files/FocusSpec.html">Focus Specification</a>
44 * for more information.
45 *
46 * @author Arnaud Weber
47 * @author David Mendenhall
48 */
49 public class DefaultFocusManager extends FocusManager {
50
51 final FocusTraversalPolicy gluePolicy =
52 new LegacyGlueFocusTraversalPolicy(this);
53 private final FocusTraversalPolicy layoutPolicy =
54 new LegacyLayoutFocusTraversalPolicy(this);
55 private final LayoutComparator comparator =
56 new LayoutComparator();
57
58 public DefaultFocusManager() {
59 setDefaultFocusTraversalPolicy(gluePolicy);
60 }
61
62 public Component getComponentAfter(Container aContainer,
63 Component aComponent)
64 {
65 Container root = (aContainer.isFocusCycleRoot())
66 ? aContainer
67 : aContainer.getFocusCycleRootAncestor();
68
131 // Support for mixed 1.4/pre-1.4 focus APIs. If a particular root's
132 // traversal policy is non-legacy, then honor it.
133 if (root != null) {
134 FocusTraversalPolicy policy = root.getFocusTraversalPolicy();
135 if (policy != gluePolicy) {
136 return policy.getLastComponent(root);
137 }
138
139 comparator.setComponentOrientation(root.getComponentOrientation());
140 return layoutPolicy.getLastComponent(root);
141 }
142
143 return null;
144 }
145
146 public boolean compareTabOrder(Component a, Component b) {
147 return (comparator.compare(a, b) < 0);
148 }
149 }
150
151 final class LegacyLayoutFocusTraversalPolicy
152 extends LayoutFocusTraversalPolicy
153 {
154 LegacyLayoutFocusTraversalPolicy(DefaultFocusManager defaultFocusManager) {
155 super(new CompareTabOrderComparator(defaultFocusManager));
156 }
157 }
158
159 final class CompareTabOrderComparator implements Comparator<Component> {
160 private final DefaultFocusManager defaultFocusManager;
161
162 CompareTabOrderComparator(DefaultFocusManager defaultFocusManager) {
163 this.defaultFocusManager = defaultFocusManager;
164 }
165
166 public int compare(Component o1, Component o2) {
167 if (o1 == o2) {
168 return 0;
169 }
170 return (defaultFocusManager.compareTabOrder(o1, o2)) ? -1 : 1;
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1 /*
2 * Copyright (c) 1997, 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
29 import java.awt.FocusTraversalPolicy;
30 import java.util.Comparator;
31
32
33 /**
34 * This class has been obsoleted by the 1.4 focus APIs. While client code may
35 * still use this class, developers are strongly encouraged to use
36 * <code>java.awt.KeyboardFocusManager</code> and
37 * <code>java.awt.DefaultKeyboardFocusManager</code> instead.
38 * <p>
39 * Please see
40 * <a href="http://docs.oracle.com/javase/tutorial/uiswing/misc/focus.html">
41 * How to Use the Focus Subsystem</a>,
42 * a section in <em>The Java Tutorial</em>, and the
43 * <a href="../../java/awt/doc-files/FocusSpec.html">Focus Specification</a>
44 * for more information.
45 *
46 * @author Arnaud Weber
47 * @author David Mendenhall
48 */
49 @SuppressWarnings("serial") // Obsolete class
50 public class DefaultFocusManager extends FocusManager {
51
52 final FocusTraversalPolicy gluePolicy =
53 new LegacyGlueFocusTraversalPolicy(this);
54 private final FocusTraversalPolicy layoutPolicy =
55 new LegacyLayoutFocusTraversalPolicy(this);
56 private final LayoutComparator comparator =
57 new LayoutComparator();
58
59 public DefaultFocusManager() {
60 setDefaultFocusTraversalPolicy(gluePolicy);
61 }
62
63 public Component getComponentAfter(Container aContainer,
64 Component aComponent)
65 {
66 Container root = (aContainer.isFocusCycleRoot())
67 ? aContainer
68 : aContainer.getFocusCycleRootAncestor();
69
132 // Support for mixed 1.4/pre-1.4 focus APIs. If a particular root's
133 // traversal policy is non-legacy, then honor it.
134 if (root != null) {
135 FocusTraversalPolicy policy = root.getFocusTraversalPolicy();
136 if (policy != gluePolicy) {
137 return policy.getLastComponent(root);
138 }
139
140 comparator.setComponentOrientation(root.getComponentOrientation());
141 return layoutPolicy.getLastComponent(root);
142 }
143
144 return null;
145 }
146
147 public boolean compareTabOrder(Component a, Component b) {
148 return (comparator.compare(a, b) < 0);
149 }
150 }
151
152 @SuppressWarnings("serial") // JDK-implementation class
153 final class LegacyLayoutFocusTraversalPolicy
154 extends LayoutFocusTraversalPolicy
155 {
156 LegacyLayoutFocusTraversalPolicy(DefaultFocusManager defaultFocusManager) {
157 super(new CompareTabOrderComparator(defaultFocusManager));
158 }
159 }
160
161 final class CompareTabOrderComparator implements Comparator<Component> {
162 private final DefaultFocusManager defaultFocusManager;
163
164 CompareTabOrderComparator(DefaultFocusManager defaultFocusManager) {
165 this.defaultFocusManager = defaultFocusManager;
166 }
167
168 public int compare(Component o1, Component o2) {
169 if (o1 == o2) {
170 return 0;
171 }
172 return (defaultFocusManager.compareTabOrder(o1, o2)) ? -1 : 1;
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