| /* |
| * Copyright (c) 2003, 2008, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * This code is ported to XAWT from MAWT based on awt_mgrsel.c |
| * and XSettings.java code written originally by Valeriy Ushakov |
| * Author : Bino George |
| */ |
| |
| |
| package sun.awt.X11; |
| |
| import java.util.*; |
| import java.awt.*; |
| import sun.awt.XSettings; |
| import sun.util.logging.PlatformLogger; |
| |
| |
| class XAWTXSettings extends XSettings implements XMSelectionListener { |
| |
| private final XAtom xSettingsPropertyAtom = XAtom.get("_XSETTINGS_SETTINGS"); |
| |
| private static PlatformLogger log = PlatformLogger.getLogger("sun.awt.X11.XAWTXSettings"); |
| |
| /* The maximal length of the property data. */ |
| public static final long MAX_LENGTH = 1000000; |
| |
| XMSelection settings; |
| |
| public XAWTXSettings() { |
| initXSettings(); |
| |
| } |
| |
| void initXSettings() { |
| if (log.isLoggable(PlatformLogger.FINE)) log.fine("Initializing XAWT XSettings"); |
| settings = new XMSelection("_XSETTINGS"); |
| settings.addSelectionListener(this); |
| initPerScreenXSettings(); |
| } |
| |
| void dispose() { |
| settings.removeSelectionListener(this); |
| } |
| |
| public void ownerDeath(int screen, XMSelection sel, long deadOwner) { |
| if (log.isLoggable(PlatformLogger.FINE)) log.fine("Owner " + deadOwner + " died for selection " + sel + " screen "+ screen); |
| } |
| |
| |
| public void ownerChanged(int screen, XMSelection sel, long newOwner, long data, long timestamp) { |
| if (log.isLoggable(PlatformLogger.FINE)) log.fine("New Owner "+ newOwner + " for selection = " + sel + " screen " +screen ); |
| } |
| |
| public void selectionChanged(int screen, XMSelection sel, long owner , XPropertyEvent event) { |
| log.fine("Selection changed on sel " + sel + " screen = " + screen + " owner = " + owner + " event = " + event); |
| updateXSettings(screen,owner); |
| } |
| |
| void initPerScreenXSettings() { |
| if (log.isLoggable(PlatformLogger.FINE)) log.fine("Updating Per XSettings changes"); |
| |
| /* |
| * As toolkit cannot yet cope with per-screen desktop properties, |
| * only report XSETTINGS changes on the default screen. This |
| * should be "good enough" for most cases. |
| */ |
| |
| Map updatedSettings = null; |
| XToolkit.awtLock(); |
| try { |
| long display = XToolkit.getDisplay(); |
| int screen = (int) XlibWrapper.DefaultScreen(display); |
| updatedSettings = getUpdatedSettings(settings.getOwner(screen)); |
| } finally { |
| XToolkit.awtUnlock(); |
| } |
| // we must not invoke this under Awt Lock |
| ((XToolkit)Toolkit.getDefaultToolkit()).parseXSettings(0,updatedSettings); |
| } |
| |
| private void updateXSettings(int screen, long owner) { |
| final Map updatedSettings = getUpdatedSettings(owner); |
| // this method is called under awt lock and usually on toolkit thread |
| // but parseXSettings() causes public code execution, so we need to transfer |
| // this to EDT |
| EventQueue.invokeLater( new Runnable() { |
| public void run() { |
| ((XToolkit) Toolkit.getDefaultToolkit()).parseXSettings( 0, updatedSettings); |
| } |
| }); |
| } |
| |
| private Map getUpdatedSettings(final long owner) { |
| if (log.isLoggable(PlatformLogger.FINE)) log.fine("owner =" + owner); |
| if (0 == owner) { |
| return null; |
| } |
| |
| Map settings = null; |
| try { |
| WindowPropertyGetter getter = |
| new WindowPropertyGetter(owner, xSettingsPropertyAtom, 0, MAX_LENGTH, |
| false, xSettingsPropertyAtom.getAtom() ); |
| try { |
| int status = getter.execute(XErrorHandler.IgnoreBadWindowHandler.getInstance()); |
| |
| if (status != XConstants.Success || getter.getData() == 0) { |
| if (log.isLoggable(PlatformLogger.FINE)) log.fine("OH OH : getter failed status = " + status ); |
| settings = null; |
| } |
| |
| long ptr = getter.getData(); |
| |
| if (log.isLoggable(PlatformLogger.FINE)) log.fine("noItems = " + getter.getNumberOfItems()); |
| byte array[] = Native.toBytes(ptr,getter.getNumberOfItems()); |
| if (array != null) { |
| settings = update(array); |
| } |
| } finally { |
| getter.dispose(); |
| } |
| } |
| catch (Exception e) { |
| e.printStackTrace(); |
| } |
| return settings; |
| } |
| |
| |
| |
| } |