J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1997-2006 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any 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 | ((AbstractButton)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 | ((AbstractButton)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.setArmed(false); |
| 199 | model.setPressed(false); |
| 200 | |
| 201 | b.repaint(); |
| 202 | } |
| 203 | |
| 204 | public void mouseMoved(MouseEvent e) { |
| 205 | } |
| 206 | |
| 207 | |
| 208 | public void mouseDragged(MouseEvent e) { |
| 209 | } |
| 210 | |
| 211 | public void mouseClicked(MouseEvent e) { |
| 212 | } |
| 213 | |
| 214 | public void mousePressed(MouseEvent e) { |
| 215 | if (SwingUtilities.isLeftMouseButton(e) ) { |
| 216 | AbstractButton b = (AbstractButton) e.getSource(); |
| 217 | |
| 218 | if(b.contains(e.getX(), e.getY())) { |
| 219 | long multiClickThreshhold = b.getMultiClickThreshhold(); |
| 220 | long lastTime = lastPressedTimestamp; |
| 221 | long currentTime = lastPressedTimestamp = e.getWhen(); |
| 222 | if (lastTime != -1 && currentTime - lastTime < multiClickThreshhold) { |
| 223 | shouldDiscardRelease = true; |
| 224 | return; |
| 225 | } |
| 226 | |
| 227 | ButtonModel model = b.getModel(); |
| 228 | if (!model.isEnabled()) { |
| 229 | // Disabled buttons ignore all input... |
| 230 | return; |
| 231 | } |
| 232 | if (!model.isArmed()) { |
| 233 | // button not armed, should be |
| 234 | model.setArmed(true); |
| 235 | } |
| 236 | model.setPressed(true); |
| 237 | if(!b.hasFocus() && b.isRequestFocusEnabled()) { |
| 238 | b.requestFocus(); |
| 239 | } |
| 240 | } |
| 241 | } |
| 242 | }; |
| 243 | |
| 244 | public void mouseReleased(MouseEvent e) { |
| 245 | if (SwingUtilities.isLeftMouseButton(e)) { |
| 246 | // Support for multiClickThreshhold |
| 247 | if (shouldDiscardRelease) { |
| 248 | shouldDiscardRelease = false; |
| 249 | return; |
| 250 | } |
| 251 | AbstractButton b = (AbstractButton) e.getSource(); |
| 252 | ButtonModel model = b.getModel(); |
| 253 | model.setPressed(false); |
| 254 | model.setArmed(false); |
| 255 | } |
| 256 | }; |
| 257 | |
| 258 | public void mouseEntered(MouseEvent e) { |
| 259 | AbstractButton b = (AbstractButton) e.getSource(); |
| 260 | ButtonModel model = b.getModel(); |
| 261 | if (b.isRolloverEnabled() && !SwingUtilities.isLeftMouseButton(e)) { |
| 262 | model.setRollover(true); |
| 263 | } |
| 264 | if (model.isPressed()) |
| 265 | model.setArmed(true); |
| 266 | }; |
| 267 | |
| 268 | public void mouseExited(MouseEvent e) { |
| 269 | AbstractButton b = (AbstractButton) e.getSource(); |
| 270 | ButtonModel model = b.getModel(); |
| 271 | if(b.isRolloverEnabled()) { |
| 272 | model.setRollover(false); |
| 273 | } |
| 274 | model.setArmed(false); |
| 275 | }; |
| 276 | |
| 277 | |
| 278 | /** |
| 279 | * Actions for Buttons. Two types of action are supported: |
| 280 | * pressed: Moves the button to a pressed state |
| 281 | * released: Disarms the button. |
| 282 | */ |
| 283 | private static class Actions extends UIAction { |
| 284 | private static final String PRESS = "pressed"; |
| 285 | private static final String RELEASE = "released"; |
| 286 | |
| 287 | Actions(String name) { |
| 288 | super(name); |
| 289 | } |
| 290 | |
| 291 | public void actionPerformed(ActionEvent e) { |
| 292 | AbstractButton b = (AbstractButton)e.getSource(); |
| 293 | String key = getName(); |
| 294 | if (key == PRESS) { |
| 295 | ButtonModel model = b.getModel(); |
| 296 | model.setArmed(true); |
| 297 | model.setPressed(true); |
| 298 | if(!b.hasFocus()) { |
| 299 | b.requestFocus(); |
| 300 | } |
| 301 | } |
| 302 | else if (key == RELEASE) { |
| 303 | ButtonModel model = b.getModel(); |
| 304 | model.setPressed(false); |
| 305 | model.setArmed(false); |
| 306 | } |
| 307 | } |
| 308 | |
| 309 | public boolean isEnabled(Object sender) { |
| 310 | if(sender != null && (sender instanceof AbstractButton) && |
| 311 | !((AbstractButton)sender).getModel().isEnabled()) { |
| 312 | return false; |
| 313 | } else { |
| 314 | return true; |
| 315 | } |
| 316 | } |
| 317 | } |
| 318 | } |