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| 1 | +/* | |
| 2 | + * Copyright (c) 1999, 2006, 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 java.awt.event.ActionEvent; | |
| 29 | +import java.awt.KeyboardFocusManager; | |
| 30 | +import java.awt.Component; | |
| 31 | +import java.awt.Point; | |
| 32 | +import java.awt.Rectangle; | |
| 33 | +import java.beans.PropertyChangeEvent; | |
| 34 | +import java.beans.PropertyChangeListener; | |
| 35 | +import javax.swing.*; | |
| 36 | +import javax.swing.plaf.*; | |
| 37 | +import sun.swing.DefaultLookup; | |
| 38 | +import sun.swing.UIAction; | |
| 39 | + | |
| 40 | +/** | |
| 41 | + * Basic implementation of RootPaneUI, there is one shared between all | |
| 42 | + * JRootPane instances. | |
| 43 | + * | |
| 44 | + * @author Scott Violet | |
| 45 | + * @since 1.3 | |
| 46 | + */ | |
| 47 | +public class BasicRootPaneUI extends RootPaneUI implements | |
| 48 | + PropertyChangeListener { | |
| 49 | + private static RootPaneUI rootPaneUI = new BasicRootPaneUI(); | |
| 50 | + | |
| 51 | + public static ComponentUI createUI(JComponent c) { | |
| 52 | + return rootPaneUI; | |
| 53 | + } | |
| 54 | + | |
| 55 | + public void installUI(JComponent c) { | |
| 56 | + installDefaults((JRootPane)c); | |
| 57 | + installComponents((JRootPane)c); | |
| 58 | + installListeners((JRootPane)c); | |
| 59 | + installKeyboardActions((JRootPane)c); | |
| 60 | + } | |
| 61 | + | |
| 62 | + | |
| 63 | + public void uninstallUI(JComponent c) { | |
| 64 | + uninstallDefaults((JRootPane)c); | |
| 65 | + uninstallComponents((JRootPane)c); | |
| 66 | + uninstallListeners((JRootPane)c); | |
| 67 | + uninstallKeyboardActions((JRootPane)c); | |
| 68 | + } | |
| 69 | + | |
| 70 | + protected void installDefaults(JRootPane c){ | |
| 71 | + LookAndFeel.installProperty(c, "opaque", Boolean.FALSE); | |
| 72 | + } | |
| 73 | + | |
| 74 | + protected void installComponents(JRootPane root) { | |
| 75 | + } | |
| 76 | + | |
| 77 | + protected void installListeners(JRootPane root) { | |
| 78 | + root.addPropertyChangeListener(this); | |
| 79 | + } | |
| 80 | + | |
| 81 | + protected void installKeyboardActions(JRootPane root) { | |
| 82 | + InputMap km = getInputMap(JComponent.WHEN_IN_FOCUSED_WINDOW, root); | |
| 83 | + SwingUtilities.replaceUIInputMap(root, | |
| 84 | + JComponent.WHEN_IN_FOCUSED_WINDOW, km); | |
| 85 | + km = getInputMap(JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, | |
| 86 | + root); | |
| 87 | + SwingUtilities.replaceUIInputMap(root, | |
| 88 | + JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, km); | |
| 89 | + | |
| 90 | + LazyActionMap.installLazyActionMap(root, BasicRootPaneUI.class, | |
| 91 | + "RootPane.actionMap"); | |
| 92 | + updateDefaultButtonBindings(root); | |
| 93 | + } | |
| 94 | + | |
| 95 | + protected void uninstallDefaults(JRootPane root) { | |
| 96 | + } | |
| 97 | + | |
| 98 | + protected void uninstallComponents(JRootPane root) { | |
| 99 | + } | |
| 100 | + | |
| 101 | + protected void uninstallListeners(JRootPane root) { | |
| 102 | + root.removePropertyChangeListener(this); | |
| 103 | + } | |
| 104 | + | |
| 105 | + protected void uninstallKeyboardActions(JRootPane root) { | |
| 106 | + SwingUtilities.replaceUIInputMap(root, JComponent. | |
| 107 | + WHEN_IN_FOCUSED_WINDOW, null); | |
| 108 | + SwingUtilities.replaceUIActionMap(root, null); | |
| 109 | + } | |
| 110 | + | |
| 111 | + InputMap getInputMap(int condition, JComponent c) { | |
| 112 | + if (condition == JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT) { | |
| 113 | + return (InputMap)DefaultLookup.get(c, this, | |
| 114 | + "RootPane.ancestorInputMap"); | |
| 115 | + } | |
| 116 | + | |
| 117 | + if (condition == JComponent.WHEN_IN_FOCUSED_WINDOW) { | |
| 118 | + return createInputMap(condition, c); | |
| 119 | + } | |
| 120 | + return null; | |
| 121 | + } | |
| 122 | + | |
| 123 | + ComponentInputMap createInputMap(int condition, JComponent c) { | |
| 124 | + return new RootPaneInputMap(c); | |
| 125 | + } | |
| 126 | + | |
| 127 | + static void loadActionMap(LazyActionMap map) { | |
| 128 | + map.put(new Actions(Actions.PRESS)); | |
| 129 | + map.put(new Actions(Actions.RELEASE)); | |
| 130 | + map.put(new Actions(Actions.POST_POPUP)); | |
| 131 | + } | |
| 132 | + | |
| 133 | + /** | |
| 134 | + * Invoked when the default button property has changed. This reloads | |
| 135 | + * the bindings from the defaults table with name | |
| 136 | + * <code>RootPane.defaultButtonWindowKeyBindings</code>. | |
| 137 | + */ | |
| 138 | + void updateDefaultButtonBindings(JRootPane root) { | |
| 139 | + InputMap km = SwingUtilities.getUIInputMap(root, JComponent. | |
| 140 | + WHEN_IN_FOCUSED_WINDOW); | |
| 141 | + while (km != null && !(km instanceof RootPaneInputMap)) { | |
| 142 | + km = km.getParent(); | |
| 143 | + } | |
| 144 | + if (km != null) { | |
| 145 | + km.clear(); | |
| 146 | + if (root.getDefaultButton() != null) { | |
| 147 | + Object[] bindings = (Object[])DefaultLookup.get(root, this, | |
| 148 | + "RootPane.defaultButtonWindowKeyBindings"); | |
| 149 | + if (bindings != null) { | |
| 150 | + LookAndFeel.loadKeyBindings(km, bindings); | |
| 151 | + } | |
| 152 | + } | |
| 153 | + } | |
| 154 | + } | |
| 155 | + | |
| 156 | + /** | |
| 157 | + * Invoked when a property changes on the root pane. If the event | |
| 158 | + * indicates the <code>defaultButton</code> has changed, this will | |
| 159 | + * reinstall the keyboard actions. | |
| 160 | + */ | |
| 161 | + public void propertyChange(PropertyChangeEvent e) { | |
| 162 | + if(e.getPropertyName().equals("defaultButton")) { | |
| 163 | + JRootPane rootpane = (JRootPane)e.getSource(); | |
| 164 | + updateDefaultButtonBindings(rootpane); | |
| 165 | + if (rootpane.getClientProperty("temporaryDefaultButton") == null) { | |
| 166 | + rootpane.putClientProperty("initialDefaultButton", e.getNewValue()); | |
| 167 | + } | |
| 168 | + } | |
| 169 | + } | |
| 170 | + | |
| 171 | + | |
| 172 | + static class Actions extends UIAction { | |
| 173 | + public static final String PRESS = "press"; | |
| 174 | + public static final String RELEASE = "release"; | |
| 175 | + public static final String POST_POPUP = "postPopup"; | |
| 176 | + | |
| 177 | + Actions(String name) { | |
| 178 | + super(name); | |
| 179 | + } | |
| 180 | + | |
| 181 | + public void actionPerformed(ActionEvent evt) { | |
| 182 | + JRootPane root = (JRootPane)evt.getSource(); | |
| 183 | + JButton owner = root.getDefaultButton(); | |
| 184 | + String key = getName(); | |
| 185 | + | |
| 186 | + if (key == POST_POPUP) { // Action to post popup | |
| 187 | + Component c = KeyboardFocusManager | |
| 188 | + .getCurrentKeyboardFocusManager() | |
| 189 | + .getFocusOwner(); | |
| 190 | + | |
| 191 | + if(c instanceof JComponent) { | |
| 192 | + JComponent src = (JComponent) c; | |
| 193 | + JPopupMenu jpm = src.getComponentPopupMenu(); | |
| 194 | + if(jpm != null) { | |
| 195 | + Point pt = src.getPopupLocation(null); | |
| 196 | + if(pt == null) { | |
| 197 | + Rectangle vis = src.getVisibleRect(); | |
| 198 | + pt = new Point(vis.x+vis.width/2, | |
| 199 | + vis.y+vis.height/2); | |
| 200 | + } | |
| 201 | + jpm.show(c, pt.x, pt.y); | |
| 202 | + } | |
| 203 | + } | |
| 204 | + } | |
| 205 | + else if (owner != null | |
| 206 | + && SwingUtilities.getRootPane(owner) == root) { | |
| 207 | + if (key == PRESS) { | |
| 208 | + owner.doClick(20); | |
| 209 | + } | |
| 210 | + } | |
| 211 | + } | |
| 212 | + | |
| 213 | + public boolean isEnabled(Object sender) { | |
| 214 | + String key = getName(); | |
| 215 | + if(key == POST_POPUP) { | |
| 216 | + MenuElement[] elems = MenuSelectionManager | |
| 217 | + .defaultManager() | |
| 218 | + .getSelectedPath(); | |
| 219 | + if(elems != null && elems.length != 0) { | |
| 220 | + return false; | |
| 221 | + // We shall not interfere with already opened menu | |
| 222 | + } | |
| 223 | + | |
| 224 | + Component c = KeyboardFocusManager | |
| 225 | + .getCurrentKeyboardFocusManager() | |
| 226 | + .getFocusOwner(); | |
| 227 | + if(c instanceof JComponent) { | |
| 228 | + JComponent src = (JComponent) c; | |
| 229 | + return src.getComponentPopupMenu() != null; | |
| 230 | + } | |
| 231 | + | |
| 232 | + return false; | |
| 233 | + } | |
| 234 | + | |
| 235 | + if (sender != null && sender instanceof JRootPane) { | |
| 236 | + JButton owner = ((JRootPane)sender).getDefaultButton(); | |
| 237 | + return (owner != null && owner.getModel().isEnabled()); | |
| 238 | + } | |
| 239 | + return true; | |
| 240 | + } | |
| 241 | + } | |
| 242 | + | |
| 243 | + private static class RootPaneInputMap extends ComponentInputMapUIResource { | |
| 244 | + public RootPaneInputMap(JComponent c) { | |
| 245 | + super(c); | |
| 246 | + } | |
| 247 | + } | |
| 248 | +} | |