1 /*
2 * Copyright (c) 2010, 2015, 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
23 * questions.
24 */
25
26 package javafx.scene.control.skin;
27
28 import com.sun.javafx.scene.control.behavior.BehaviorBase;
29 import com.sun.javafx.scene.control.skin.Utils;
30 import javafx.scene.Node;
31 import javafx.scene.Scene;
32 import javafx.scene.control.Button;
33 import javafx.scene.control.ContextMenu;
34 import com.sun.javafx.scene.control.behavior.ButtonBehavior;
35 import javafx.scene.control.Control;
36 import javafx.scene.input.KeyCode;
37 import javafx.scene.input.KeyCodeCombination;
38
39 /**
40 * Default skin implementation for the {@link Button} control.
41 *
42 * @see Button
43 * @since 9
44 */
45 public class ButtonSkin extends LabeledSkinBase<Button> {
46
47 /***************************************************************************
48 * *
49 * Private fields *
50 * *
51 **************************************************************************/
52
53 private KeyCodeCombination defaultAcceleratorKeyCodeCombination;
54 private KeyCodeCombination cancelAcceleratorKeyCodeCombination;
55 private final BehaviorBase<Button> behavior;
56
57
58
59 /***************************************************************************
60 * *
61 * Listeners *
62 * *
63 **************************************************************************/
64
65 Runnable defaultButtonRunnable = () -> {
66 if (getSkinnable().getScene() != null && getSkinnable().impl_isTreeVisible() && !getSkinnable().isDisabled()) {
67 getSkinnable().fire();
68 }
69 };
70
71 Runnable cancelButtonRunnable = () -> {
72 if (getSkinnable().getScene() != null && getSkinnable().impl_isTreeVisible() && !getSkinnable().isDisabled()) {
73 getSkinnable().fire();
74 }
75 };
76
77
78
79 /***************************************************************************
80 * *
81 * Constructors *
82 * *
83 **************************************************************************/
84
85 /**
86 * Creates a new ButtonSkin instance, installing the necessary child
87 * nodes into the Control {@link Control#getChildren() children} list, as
88 * well as the necessary input mappings for handling key, mouse, etc events.
89 *
90 * @param control The control that this skin should be installed onto.
91 */
92 public ButtonSkin(Button control) {
93 super(control);
94
95 // install default input map for the Button control
96 behavior = new ButtonBehavior<>(control);
97 // control.setInputMap(behavior.getInputMap());
98
99 // Register listeners
100 registerChangeListener(control.defaultButtonProperty(), o -> setDefaultButton(getSkinnable().isDefaultButton()));
101 registerChangeListener(control.cancelButtonProperty(), o -> setCancelButton(getSkinnable().isCancelButton()));
102 registerChangeListener(control.focusedProperty(), o -> {
103 if (!getSkinnable().isFocused()) {
104 ContextMenu cm = getSkinnable().getContextMenu();
105 if (cm != null) {
106 if (cm.isShowing()) {
107 cm.hide();
108 Utils.removeMnemonics(cm, getSkinnable().getScene());
109 }
110 }
111 }
112 });
113 registerChangeListener(control.parentProperty(), o -> {
114 if (getSkinnable().getParent() == null && getSkinnable().getScene() != null) {
115 if (getSkinnable().isDefaultButton()) {
116 getSkinnable().getScene().getAccelerators().remove(defaultAcceleratorKeyCodeCombination);
117 }
118 if (getSkinnable().isCancelButton()) {
119 getSkinnable().getScene().getAccelerators().remove(cancelAcceleratorKeyCodeCombination);
120 }
121 }
122 });
123
124 // set visuals
125 if (getSkinnable().isDefaultButton()) {
126 /*
127 ** were we already the defaultButton, before the listener was added?
128 ** don't laugh, it can happen....
129 */
130 setDefaultButton(true);
131 }
132
133 if (getSkinnable().isCancelButton()) {
134 /*
135 ** were we already the defaultButton, before the listener was added?
136 ** don't laugh, it can happen....
137 */
138 setCancelButton(true);
139 }
140 }
141
142
143
144 /***************************************************************************
145 * *
146 * Public API *
147 * *
148 **************************************************************************/
149
150 /** {@inheritDoc} */
151 @Override public void dispose() {
152 super.dispose();
153
154 if (behavior != null) {
155 behavior.dispose();
156 }
157 }
158
159
160
161 /***************************************************************************
162 * *
163 * Private implementation *
164 * *
165 **************************************************************************/
166
167 private void setDefaultButton(boolean value) {
168 Scene scene = getSkinnable().getScene();
169 if (scene != null) {
170 KeyCode acceleratorCode = KeyCode.ENTER;
171 defaultAcceleratorKeyCodeCombination = new KeyCodeCombination(acceleratorCode);
172
173 Runnable oldDefault = scene.getAccelerators().get(defaultAcceleratorKeyCodeCombination);
174 if (!value) {
175 /**
176 * first check of there's a default button already
177 */
178 if (defaultButtonRunnable.equals(oldDefault)) {
179 /**
180 * is it us?
181 */
182 scene.getAccelerators().remove(defaultAcceleratorKeyCodeCombination);
183 }
184 }
185 else {
186 if (!defaultButtonRunnable.equals(oldDefault)) {
187 scene.getAccelerators().remove(defaultAcceleratorKeyCodeCombination);
188 scene.getAccelerators().put(defaultAcceleratorKeyCodeCombination, defaultButtonRunnable);
189 }
190 }
191 }
192 }
193
194 private void setCancelButton(boolean value) {
195 Scene scene = getSkinnable().getScene();
196 if (scene != null) {
197 KeyCode acceleratorCode = KeyCode.ESCAPE;
198 cancelAcceleratorKeyCodeCombination = new KeyCodeCombination(acceleratorCode);
199
200 Runnable oldCancel = scene.getAccelerators().get(cancelAcceleratorKeyCodeCombination);
201 if (!value) {
202 /**
203 * first check of there's a cancel button already
204 */
205 if (cancelButtonRunnable.equals(oldCancel)) {
206 /**
207 * is it us?
208 */
209 scene.getAccelerators().remove(cancelAcceleratorKeyCodeCombination);
210 }
211 }
212 else {
213 if (!cancelButtonRunnable.equals(oldCancel)) {
214 scene.getAccelerators().remove(cancelAcceleratorKeyCodeCombination);
215 scene.getAccelerators().put(cancelAcceleratorKeyCodeCombination, cancelButtonRunnable);
216 }
217 }
218 }
219 }
220 }