J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2007 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 | /* |
| 27 | * This code is ported to XAWT from MAWT based on awt_mgrsel.c |
| 28 | * and XSettings.java code written originally by Valeriy Ushakov |
| 29 | * Author : Bino George |
| 30 | */ |
| 31 | |
| 32 | |
| 33 | package sun.awt.X11; |
| 34 | |
| 35 | import java.util.*; |
| 36 | import java.awt.*; |
| 37 | import sun.awt.XSettings; |
| 38 | import java.util.logging.*; |
| 39 | |
| 40 | |
| 41 | |
| 42 | class XAWTXSettings extends XSettings implements XMSelectionListener { |
| 43 | |
| 44 | private final XAtom xSettingsPropertyAtom = XAtom.get("_XSETTINGS_SETTINGS"); |
| 45 | |
| 46 | private static Logger log = Logger.getLogger("sun.awt.X11.XAWTXSettings"); |
| 47 | |
| 48 | /* The maximal length of the property data. */ |
| 49 | public static final long MAX_LENGTH = 1000000; |
| 50 | |
| 51 | XMSelection settings; |
| 52 | |
| 53 | public XAWTXSettings() { |
| 54 | initXSettings(); |
| 55 | |
| 56 | } |
| 57 | |
| 58 | void initXSettings() { |
| 59 | if (log.isLoggable(Level.FINE)) log.fine("Initializing XAWT XSettings"); |
| 60 | settings = new XMSelection("_XSETTINGS"); |
| 61 | settings.addSelectionListener(this); |
| 62 | initPerScreenXSettings(); |
| 63 | } |
| 64 | |
| 65 | void dispose() { |
| 66 | settings.removeSelectionListener(this); |
| 67 | } |
| 68 | |
| 69 | public void ownerDeath(int screen, XMSelection sel, long deadOwner) { |
| 70 | if (log.isLoggable(Level.FINE)) log.fine("Owner " + deadOwner + " died for selection " + sel + " screen "+ screen); |
| 71 | } |
| 72 | |
| 73 | |
| 74 | public void ownerChanged(int screen, XMSelection sel, long newOwner, long data, long timestamp) { |
| 75 | if (log.isLoggable(Level.FINE)) log.fine("New Owner "+ newOwner + " for selection = " + sel + " screen " +screen ); |
| 76 | } |
| 77 | |
| 78 | public void selectionChanged(int screen, XMSelection sel, long owner , XPropertyEvent event) { |
| 79 | log.fine("Selection changed on sel " + sel + " screen = " + screen + " owner = " + owner + " event = " + event); |
| 80 | updateXSettings(screen,owner); |
| 81 | } |
| 82 | |
| 83 | void initPerScreenXSettings() { |
| 84 | if (log.isLoggable(Level.FINE)) log.fine("Updating Per XSettings changes"); |
| 85 | |
| 86 | /* |
| 87 | * As toolkit cannot yet cope with per-screen desktop properties, |
| 88 | * only report XSETTINGS changes on the default screen. This |
| 89 | * should be "good enough" for most cases. |
| 90 | */ |
| 91 | |
| 92 | Map updatedSettings = null; |
| 93 | XToolkit.awtLock(); |
| 94 | try { |
| 95 | long display = XToolkit.getDisplay(); |
| 96 | int screen = (int) XlibWrapper.DefaultScreen(display); |
| 97 | updatedSettings = getUpdatedSettings(settings.getOwner(screen)); |
| 98 | } finally { |
| 99 | XToolkit.awtUnlock(); |
| 100 | } |
| 101 | // we must not invoke this under Awt Lock |
| 102 | ((XToolkit)Toolkit.getDefaultToolkit()).parseXSettings(0,updatedSettings); |
| 103 | } |
| 104 | |
| 105 | private void updateXSettings(int screen, long owner) { |
| 106 | final Map updatedSettings = getUpdatedSettings(owner); |
| 107 | // this method is called under awt lock and usually on toolkit thread |
| 108 | // but parseXSettings() causes public code execution, so we need to transfer |
| 109 | // this to EDT |
| 110 | EventQueue.invokeLater( new Runnable() { |
| 111 | public void run() { |
| 112 | ((XToolkit) Toolkit.getDefaultToolkit()).parseXSettings( 0, updatedSettings); |
| 113 | } |
| 114 | }); |
| 115 | } |
| 116 | |
| 117 | private Map getUpdatedSettings(final long owner) { |
| 118 | if (log.isLoggable(Level.FINE)) log.fine("owner =" + owner); |
| 119 | if (0 == owner) { |
| 120 | return null; |
| 121 | } |
| 122 | |
| 123 | Map settings = null; |
| 124 | try { |
| 125 | WindowPropertyGetter getter = |
| 126 | new WindowPropertyGetter(owner, xSettingsPropertyAtom, 0, MAX_LENGTH, |
| 127 | false, xSettingsPropertyAtom.getAtom() ); |
| 128 | try { |
| 129 | int status = getter.execute(XToolkit.IgnoreBadWindowHandler); |
| 130 | |
| 131 | if (status != XlibWrapper.Success || getter.getData() == 0) { |
| 132 | if (log.isLoggable(Level.FINE)) log.fine("OH OH : getter failed status = " + status ); |
| 133 | settings = null; |
| 134 | } |
| 135 | |
| 136 | long ptr = getter.getData(); |
| 137 | |
| 138 | if (log.isLoggable(Level.FINE)) log.fine("noItems = " + getter.getNumberOfItems()); |
| 139 | byte array[] = Native.toBytes(ptr,getter.getNumberOfItems()); |
| 140 | if (array != null) { |
| 141 | settings = update(array); |
| 142 | } |
| 143 | } finally { |
| 144 | getter.dispose(); |
| 145 | } |
| 146 | } |
| 147 | catch (Exception e) { |
| 148 | e.printStackTrace(); |
| 149 | } |
| 150 | return settings; |
| 151 | } |
| 152 | |
| 153 | |
| 154 | |
| 155 | } |