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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 | } | ||