1 /* |
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2 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package com.sun.java.swing.plaf.windows; |
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27 |
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28 import javax.swing.plaf.basic.*; |
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29 import javax.swing.*; |
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30 import javax.swing.plaf.ActionMapUIResource; |
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31 import javax.swing.plaf.ComponentUI; |
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32 import java.awt.event.ActionEvent; |
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33 import java.awt.event.HierarchyEvent; |
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34 import java.awt.event.HierarchyListener; |
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35 import java.awt.event.WindowAdapter; |
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36 import java.awt.event.WindowEvent; |
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37 import java.awt.event.WindowListener; |
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38 import java.awt.event.WindowStateListener; |
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39 |
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40 import java.awt.*; |
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41 |
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42 import com.sun.java.swing.plaf.windows.TMSchema.*; |
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43 import com.sun.java.swing.plaf.windows.XPStyle.*; |
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44 |
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45 /** |
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46 * Windows rendition of the component. |
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47 * <p> |
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48 * <strong>Warning:</strong> |
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49 * Serialized objects of this class will not be compatible with |
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50 * future Swing releases. The current serialization support is appropriate |
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51 * for short term storage or RMI between applications running the same |
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52 * version of Swing. A future release of Swing will provide support for |
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53 * long term persistence. |
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54 */ |
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55 public class WindowsMenuBarUI extends BasicMenuBarUI |
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56 { |
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57 /* to be accessed on the EDT only */ |
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58 private WindowListener windowListener = null; |
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59 private HierarchyListener hierarchyListener = null; |
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60 private Window window = null; |
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61 |
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62 public static ComponentUI createUI(JComponent x) { |
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63 return new WindowsMenuBarUI(); |
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64 } |
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65 |
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66 @Override |
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67 protected void uninstallListeners() { |
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68 uninstallWindowListener(); |
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69 if (hierarchyListener != null) { |
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70 menuBar.removeHierarchyListener(hierarchyListener); |
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71 hierarchyListener = null; |
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72 } |
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73 super.uninstallListeners(); |
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74 } |
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75 private void installWindowListener() { |
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76 if (windowListener == null) { |
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77 Component component = menuBar.getTopLevelAncestor(); |
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78 if (component instanceof Window) { |
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79 window = (Window) component; |
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80 windowListener = new WindowAdapter() { |
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81 @Override |
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82 public void windowActivated(WindowEvent e) { |
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83 menuBar.repaint(); |
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84 } |
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85 @Override |
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86 public void windowDeactivated(WindowEvent e) { |
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87 menuBar.repaint(); |
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88 } |
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89 }; |
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90 ((Window) component).addWindowListener(windowListener); |
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91 } |
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92 } |
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93 } |
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94 private void uninstallWindowListener() { |
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95 if (windowListener != null && window != null) { |
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96 window.removeWindowListener(windowListener); |
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97 } |
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98 window = null; |
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99 windowListener = null; |
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100 } |
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101 @Override |
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102 protected void installListeners() { |
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103 if (WindowsLookAndFeel.isOnVista()) { |
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104 installWindowListener(); |
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105 hierarchyListener = |
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106 new HierarchyListener() { |
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107 public void hierarchyChanged(HierarchyEvent e) { |
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108 if ((e.getChangeFlags() |
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109 & HierarchyEvent.DISPLAYABILITY_CHANGED) != 0) { |
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110 if (menuBar.isDisplayable()) { |
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111 installWindowListener(); |
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112 } else { |
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113 uninstallWindowListener(); |
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114 } |
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115 } |
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116 } |
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117 }; |
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118 menuBar.addHierarchyListener(hierarchyListener); |
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119 } |
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120 super.installListeners(); |
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121 } |
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122 |
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123 protected void installKeyboardActions() { |
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124 super.installKeyboardActions(); |
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125 ActionMap map = SwingUtilities.getUIActionMap(menuBar); |
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126 if (map == null) { |
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127 map = new ActionMapUIResource(); |
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128 SwingUtilities.replaceUIActionMap(menuBar, map); |
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129 } |
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130 map.put("takeFocus", new TakeFocus()); |
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131 } |
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132 |
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133 /** |
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134 * Action that activates the menu (e.g. when F10 is pressed). |
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135 * Unlike BasicMenuBarUI.TakeFocus, this Action will not show menu popup. |
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136 */ |
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137 @SuppressWarnings("serial") // Superclass is not serializable across versions |
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138 private static class TakeFocus extends AbstractAction { |
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139 public void actionPerformed(ActionEvent e) { |
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140 JMenuBar menuBar = (JMenuBar)e.getSource(); |
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141 JMenu menu = menuBar.getMenu(0); |
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142 if (menu != null) { |
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143 MenuSelectionManager msm = |
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144 MenuSelectionManager.defaultManager(); |
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145 MenuElement path[] = new MenuElement[2]; |
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146 path[0] = (MenuElement)menuBar; |
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147 path[1] = (MenuElement)menu; |
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148 msm.setSelectedPath(path); |
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149 |
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150 // show mnemonics |
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151 WindowsLookAndFeel.setMnemonicHidden(false); |
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152 WindowsLookAndFeel.repaintRootPane(menuBar); |
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153 } |
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154 } |
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155 } |
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156 |
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157 @Override |
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158 public void paint(Graphics g, JComponent c) { |
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159 XPStyle xp = XPStyle.getXP(); |
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160 if (WindowsMenuItemUI.isVistaPainting(xp)) { |
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161 Skin skin; |
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162 skin = xp.getSkin(c, Part.MP_BARBACKGROUND); |
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163 int width = c.getWidth(); |
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164 int height = c.getHeight(); |
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165 State state = isActive(c) ? State.ACTIVE : State.INACTIVE; |
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166 skin.paintSkin(g, 0, 0, width, height, state); |
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167 } else { |
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168 super.paint(g, c); |
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169 } |
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170 } |
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171 |
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172 /** |
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173 * Checks if component belongs to an active window. |
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174 * @param c component to check |
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175 * @return true if component belongs to an active window |
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176 */ |
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177 static boolean isActive(JComponent c) { |
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178 JRootPane rootPane = c.getRootPane(); |
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179 if (rootPane != null) { |
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180 Component component = rootPane.getParent(); |
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181 if (component instanceof Window) { |
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182 return ((Window) component).isActive(); |
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183 } |
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184 } |
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185 return true; |
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186 } |
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187 } |
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