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| 1 | +/* | |
| 2 | + * Copyright (c) 1997, 2010, 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 javax.swing.plaf.basic; | |
| 27 | + | |
| 28 | +import sun.swing.DefaultLookup; | |
| 29 | +import sun.swing.UIAction; | |
| 30 | +import java.awt.*; | |
| 31 | +import java.awt.event.*; | |
| 32 | +import java.beans.*; | |
| 33 | +import javax.swing.*; | |
| 34 | +import javax.swing.event.*; | |
| 35 | +import javax.swing.plaf.ActionMapUIResource; | |
| 36 | +import javax.swing.plaf.ButtonUI; | |
| 37 | +import javax.swing.plaf.ComponentInputMapUIResource; | |
| 38 | + | |
| 39 | +/** | |
| 40 | + * Button Listener | |
| 41 | + * | |
| 42 | + * @author Jeff Dinkins | |
| 43 | + * @author Arnaud Weber (keyboard UI support) | |
| 44 | + */ | |
| 45 | + | |
| 46 | +public class BasicButtonListener implements MouseListener, MouseMotionListener, | |
| 47 | + FocusListener, ChangeListener, PropertyChangeListener | |
| 48 | +{ | |
| 49 | + private long lastPressedTimestamp = -1; | |
| 50 | + private boolean shouldDiscardRelease = false; | |
| 51 | + | |
| 52 | + /** | |
| 53 | + * Populates Buttons actions. | |
| 54 | + */ | |
| 55 | + static void loadActionMap(LazyActionMap map) { | |
| 56 | + map.put(new Actions(Actions.PRESS)); | |
| 57 | + map.put(new Actions(Actions.RELEASE)); | |
| 58 | + } | |
| 59 | + | |
| 60 | + | |
| 61 | + public BasicButtonListener(AbstractButton b) { | |
| 62 | + } | |
| 63 | + | |
| 64 | + public void propertyChange(PropertyChangeEvent e) { | |
| 65 | + String prop = e.getPropertyName(); | |
| 66 | + if(prop == AbstractButton.MNEMONIC_CHANGED_PROPERTY) { | |
| 67 | + updateMnemonicBinding((AbstractButton)e.getSource()); | |
| 68 | + } | |
| 69 | + else if(prop == AbstractButton.CONTENT_AREA_FILLED_CHANGED_PROPERTY) { | |
| 70 | + checkOpacity((AbstractButton) e.getSource() ); | |
| 71 | + } | |
| 72 | + else if(prop == AbstractButton.TEXT_CHANGED_PROPERTY || | |
| 73 | + "font" == prop || "foreground" == prop) { | |
| 74 | + AbstractButton b = (AbstractButton) e.getSource(); | |
| 75 | + BasicHTML.updateRenderer(b, b.getText()); | |
| 76 | + } | |
| 77 | + } | |
| 78 | + | |
| 79 | + protected void checkOpacity(AbstractButton b) { | |
| 80 | + b.setOpaque( b.isContentAreaFilled() ); | |
| 81 | + } | |
| 82 | + | |
| 83 | + /** | |
| 84 | + * Register default key actions: pressing space to "click" a | |
| 85 | + * button and registring the keyboard mnemonic (if any). | |
| 86 | + */ | |
| 87 | + public void installKeyboardActions(JComponent c) { | |
| 88 | + AbstractButton b = (AbstractButton)c; | |
| 89 | + // Update the mnemonic binding. | |
| 90 | + updateMnemonicBinding(b); | |
| 91 | + | |
| 92 | + LazyActionMap.installLazyActionMap(c, BasicButtonListener.class, | |
| 93 | + "Button.actionMap"); | |
| 94 | + | |
| 95 | + InputMap km = getInputMap(JComponent.WHEN_FOCUSED, c); | |
| 96 | + | |
| 97 | + SwingUtilities.replaceUIInputMap(c, JComponent.WHEN_FOCUSED, km); | |
| 98 | + } | |
| 99 | + | |
| 100 | + /** | |
| 101 | + * Unregister's default key actions | |
| 102 | + */ | |
| 103 | + public void uninstallKeyboardActions(JComponent c) { | |
| 104 | + SwingUtilities.replaceUIInputMap(c, JComponent. | |
| 105 | + WHEN_IN_FOCUSED_WINDOW, null); | |
| 106 | + SwingUtilities.replaceUIInputMap(c, JComponent.WHEN_FOCUSED, null); | |
| 107 | + SwingUtilities.replaceUIActionMap(c, null); | |
| 108 | + } | |
| 109 | + | |
| 110 | + /** | |
| 111 | + * Returns the InputMap for condition <code>condition</code>. Called as | |
| 112 | + * part of <code>installKeyboardActions</code>. | |
| 113 | + */ | |
| 114 | + InputMap getInputMap(int condition, JComponent c) { | |
| 115 | + if (condition == JComponent.WHEN_FOCUSED) { | |
| 116 | + BasicButtonUI ui = (BasicButtonUI)BasicLookAndFeel.getUIOfType( | |
| 117 | + ((AbstractButton)c).getUI(), BasicButtonUI.class); | |
| 118 | + if (ui != null) { | |
| 119 | + return (InputMap)DefaultLookup.get( | |
| 120 | + c, ui, ui.getPropertyPrefix() + "focusInputMap"); | |
| 121 | + } | |
| 122 | + } | |
| 123 | + return null; | |
| 124 | + } | |
| 125 | + | |
| 126 | + /** | |
| 127 | + * Resets the binding for the mnemonic in the WHEN_IN_FOCUSED_WINDOW | |
| 128 | + * UI InputMap. | |
| 129 | + */ | |
| 130 | + void updateMnemonicBinding(AbstractButton b) { | |
| 131 | + int m = b.getMnemonic(); | |
| 132 | + if(m != 0) { | |
| 133 | + InputMap map = SwingUtilities.getUIInputMap( | |
| 134 | + b, JComponent.WHEN_IN_FOCUSED_WINDOW); | |
| 135 | + | |
| 136 | + if (map == null) { | |
| 137 | + map = new ComponentInputMapUIResource(b); | |
| 138 | + SwingUtilities.replaceUIInputMap(b, | |
| 139 | + JComponent.WHEN_IN_FOCUSED_WINDOW, map); | |
| 140 | + } | |
| 141 | + map.clear(); | |
| 142 | + map.put(KeyStroke.getKeyStroke(m, InputEvent.ALT_MASK, false), | |
| 143 | + "pressed"); | |
| 144 | + map.put(KeyStroke.getKeyStroke(m, InputEvent.ALT_MASK, true), | |
| 145 | + "released"); | |
| 146 | + map.put(KeyStroke.getKeyStroke(m, 0, true), "released"); | |
| 147 | + } | |
| 148 | + else { | |
| 149 | + InputMap map = SwingUtilities.getUIInputMap(b, JComponent. | |
| 150 | + WHEN_IN_FOCUSED_WINDOW); | |
| 151 | + if (map != null) { | |
| 152 | + map.clear(); | |
| 153 | + } | |
| 154 | + } | |
| 155 | + } | |
| 156 | + | |
| 157 | + public void stateChanged(ChangeEvent e) { | |
| 158 | + AbstractButton b = (AbstractButton) e.getSource(); | |
| 159 | + b.repaint(); | |
| 160 | + } | |
| 161 | + | |
| 162 | + public void focusGained(FocusEvent e) { | |
| 163 | + AbstractButton b = (AbstractButton) e.getSource(); | |
| 164 | + if (b instanceof JButton && ((JButton)b).isDefaultCapable()) { | |
| 165 | + JRootPane root = b.getRootPane(); | |
| 166 | + if (root != null) { | |
| 167 | + BasicButtonUI ui = (BasicButtonUI)BasicLookAndFeel.getUIOfType( | |
| 168 | + b.getUI(), BasicButtonUI.class); | |
| 169 | + if (ui != null && DefaultLookup.getBoolean(b, ui, | |
| 170 | + ui.getPropertyPrefix() + | |
| 171 | + "defaultButtonFollowsFocus", true)) { | |
| 172 | + root.putClientProperty("temporaryDefaultButton", b); | |
| 173 | + root.setDefaultButton((JButton)b); | |
| 174 | + root.putClientProperty("temporaryDefaultButton", null); | |
| 175 | + } | |
| 176 | + } | |
| 177 | + } | |
| 178 | + b.repaint(); | |
| 179 | + } | |
| 180 | + | |
| 181 | + public void focusLost(FocusEvent e) { | |
| 182 | + AbstractButton b = (AbstractButton) e.getSource(); | |
| 183 | + JRootPane root = b.getRootPane(); | |
| 184 | + if (root != null) { | |
| 185 | + JButton initialDefault = (JButton)root.getClientProperty("initialDefaultButton"); | |
| 186 | + if (b != initialDefault) { | |
| 187 | + BasicButtonUI ui = (BasicButtonUI)BasicLookAndFeel.getUIOfType( | |
| 188 | + b.getUI(), BasicButtonUI.class); | |
| 189 | + if (ui != null && DefaultLookup.getBoolean(b, ui, | |
| 190 | + ui.getPropertyPrefix() + | |
| 191 | + "defaultButtonFollowsFocus", true)) { | |
| 192 | + root.setDefaultButton(initialDefault); | |
| 193 | + } | |
| 194 | + } | |
| 195 | + } | |
| 196 | + | |
| 197 | + ButtonModel model = b.getModel(); | |
| 198 | + model.setPressed(false); | |
| 199 | + model.setArmed(false); | |
| 200 | + b.repaint(); | |
| 201 | + } | |
| 202 | + | |
| 203 | + public void mouseMoved(MouseEvent e) { | |
| 204 | + } | |
| 205 | + | |
| 206 | + | |
| 207 | + public void mouseDragged(MouseEvent e) { | |
| 208 | + } | |
| 209 | + | |
| 210 | + public void mouseClicked(MouseEvent e) { | |
| 211 | + } | |
| 212 | + | |
| 213 | + public void mousePressed(MouseEvent e) { | |
| 214 | + if (SwingUtilities.isLeftMouseButton(e) ) { | |
| 215 | + AbstractButton b = (AbstractButton) e.getSource(); | |
| 216 | + | |
| 217 | + if(b.contains(e.getX(), e.getY())) { | |
| 218 | + long multiClickThreshhold = b.getMultiClickThreshhold(); | |
| 219 | + long lastTime = lastPressedTimestamp; | |
| 220 | + long currentTime = lastPressedTimestamp = e.getWhen(); | |
| 221 | + if (lastTime != -1 && currentTime - lastTime < multiClickThreshhold) { | |
| 222 | + shouldDiscardRelease = true; | |
| 223 | + return; | |
| 224 | + } | |
| 225 | + | |
| 226 | + ButtonModel model = b.getModel(); | |
| 227 | + if (!model.isEnabled()) { | |
| 228 | + // Disabled buttons ignore all input... | |
| 229 | + return; | |
| 230 | + } | |
| 231 | + if (!model.isArmed()) { | |
| 232 | + // button not armed, should be | |
| 233 | + model.setArmed(true); | |
| 234 | + } | |
| 235 | + model.setPressed(true); | |
| 236 | + if(!b.hasFocus() && b.isRequestFocusEnabled()) { | |
| 237 | + b.requestFocus(); | |
| 238 | + } | |
| 239 | + } | |
| 240 | + } | |
| 241 | + } | |
| 242 | + | |
| 243 | + public void mouseReleased(MouseEvent e) { | |
| 244 | + if (SwingUtilities.isLeftMouseButton(e)) { | |
| 245 | + // Support for multiClickThreshhold | |
| 246 | + if (shouldDiscardRelease) { | |
| 247 | + shouldDiscardRelease = false; | |
| 248 | + return; | |
| 249 | + } | |
| 250 | + AbstractButton b = (AbstractButton) e.getSource(); | |
| 251 | + ButtonModel model = b.getModel(); | |
| 252 | + model.setPressed(false); | |
| 253 | + model.setArmed(false); | |
| 254 | + } | |
| 255 | + } | |
| 256 | + | |
| 257 | + public void mouseEntered(MouseEvent e) { | |
| 258 | + AbstractButton b = (AbstractButton) e.getSource(); | |
| 259 | + ButtonModel model = b.getModel(); | |
| 260 | + if (b.isRolloverEnabled() && !SwingUtilities.isLeftMouseButton(e)) { | |
| 261 | + model.setRollover(true); | |
| 262 | + } | |
| 263 | + if (model.isPressed()) | |
| 264 | + model.setArmed(true); | |
| 265 | + } | |
| 266 | + | |
| 267 | + public void mouseExited(MouseEvent e) { | |
| 268 | + AbstractButton b = (AbstractButton) e.getSource(); | |
| 269 | + ButtonModel model = b.getModel(); | |
| 270 | + if(b.isRolloverEnabled()) { | |
| 271 | + model.setRollover(false); | |
| 272 | + } | |
| 273 | + model.setArmed(false); | |
| 274 | + } | |
| 275 | + | |
| 276 | + | |
| 277 | + /** | |
| 278 | + * Actions for Buttons. Two types of action are supported: | |
| 279 | + * pressed: Moves the button to a pressed state | |
| 280 | + * released: Disarms the button. | |
| 281 | + */ | |
| 282 | + private static class Actions extends UIAction { | |
| 283 | + private static final String PRESS = "pressed"; | |
| 284 | + private static final String RELEASE = "released"; | |
| 285 | + | |
| 286 | + Actions(String name) { | |
| 287 | + super(name); | |
| 288 | + } | |
| 289 | + | |
| 290 | + public void actionPerformed(ActionEvent e) { | |
| 291 | + AbstractButton b = (AbstractButton)e.getSource(); | |
| 292 | + String key = getName(); | |
| 293 | + if (key == PRESS) { | |
| 294 | + ButtonModel model = b.getModel(); | |
| 295 | + model.setArmed(true); | |
| 296 | + model.setPressed(true); | |
| 297 | + if(!b.hasFocus()) { | |
| 298 | + b.requestFocus(); | |
| 299 | + } | |
| 300 | + } | |
| 301 | + else if (key == RELEASE) { | |
| 302 | + ButtonModel model = b.getModel(); | |
| 303 | + model.setPressed(false); | |
| 304 | + model.setArmed(false); | |
| 305 | + } | |
| 306 | + } | |
| 307 | + | |
| 308 | + public boolean isEnabled(Object sender) { | |
| 309 | + if(sender != null && (sender instanceof AbstractButton) && | |
| 310 | + !((AbstractButton)sender).getModel().isEnabled()) { | |
| 311 | + return false; | |
| 312 | + } else { | |
| 313 | + return true; | |
| 314 | + } | |
| 315 | + } | |
| 316 | + } | |
| 317 | +} | |