jdk/src/solaris/classes/sun/awt/X11/XAWTXSettings.java
author yan
Mon, 06 Oct 2008 16:45:00 +0400
changeset 1966 12a51fb0db0d
parent 439 3488710b02f8
child 2802 d05a9dcc8296
permissions -rw-r--r--
5100701: Toolkit.getLockingKeyState() does not work on XToolkit, but works on Motif Summary: Does not work on Motif but works on XToolkit now; implemented using XQueryPointer. Reviewed-by: anthony
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/*
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 * Copyright 2003-2008 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Sun designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Sun in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 */
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 /*
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   * This code is ported to XAWT from MAWT based on awt_mgrsel.c
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   * and XSettings.java code written originally by Valeriy Ushakov
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   * Author : Bino George
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   */
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package sun.awt.X11;
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import java.util.*;
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import java.awt.*;
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import sun.awt.XSettings;
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import java.util.logging.*;
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class XAWTXSettings extends XSettings implements XMSelectionListener {
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    private final XAtom xSettingsPropertyAtom = XAtom.get("_XSETTINGS_SETTINGS");
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    private static Logger log = Logger.getLogger("sun.awt.X11.XAWTXSettings");
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    /* The maximal length of the property data. */
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    public static final long MAX_LENGTH = 1000000;
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    XMSelection settings;
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    public XAWTXSettings() {
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        initXSettings();
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    }
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    void initXSettings() {
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        if (log.isLoggable(Level.FINE)) log.fine("Initializing XAWT XSettings");
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        settings = new XMSelection("_XSETTINGS");
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        settings.addSelectionListener(this);
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        initPerScreenXSettings();
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    }
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    void dispose() {
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        settings.removeSelectionListener(this);
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    }
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    public void ownerDeath(int screen, XMSelection sel, long deadOwner) {
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        if (log.isLoggable(Level.FINE)) log.fine("Owner " + deadOwner + " died for selection " + sel + " screen "+ screen);
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    }
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    public void ownerChanged(int screen, XMSelection sel, long newOwner, long data, long timestamp) {
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        if (log.isLoggable(Level.FINE)) log.fine("New Owner "+ newOwner + " for selection = " + sel + " screen " +screen );
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    }
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    public void selectionChanged(int screen, XMSelection sel, long owner , XPropertyEvent event) {
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        log.fine("Selection changed on sel " + sel + " screen = " + screen + " owner = " + owner + " event = " + event);
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        updateXSettings(screen,owner);
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    }
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    void initPerScreenXSettings() {
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        if (log.isLoggable(Level.FINE)) log.fine("Updating Per XSettings changes");
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        /*
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         * As toolkit cannot yet cope with per-screen desktop properties,
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         * only report XSETTINGS changes on the default screen.  This
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         * should be "good enough" for most cases.
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         */
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        Map updatedSettings = null;
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        XToolkit.awtLock();
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        try {
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            long display = XToolkit.getDisplay();
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            int screen = (int) XlibWrapper.DefaultScreen(display);
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            updatedSettings = getUpdatedSettings(settings.getOwner(screen));
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        } finally {
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            XToolkit.awtUnlock();
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        }
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        // we must not  invoke this under Awt Lock
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        ((XToolkit)Toolkit.getDefaultToolkit()).parseXSettings(0,updatedSettings);
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    }
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    private void updateXSettings(int screen, long owner) {
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        final Map updatedSettings = getUpdatedSettings(owner);
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        // this method is called under awt lock and usually on toolkit thread
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        // but parseXSettings() causes public code execution, so we need to transfer
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        // this to EDT
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        EventQueue.invokeLater( new Runnable() {
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            public void run() {
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                ((XToolkit) Toolkit.getDefaultToolkit()).parseXSettings( 0, updatedSettings);
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            }
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        });
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    }
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    private Map getUpdatedSettings(final long owner) {
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        if (log.isLoggable(Level.FINE)) log.fine("owner =" + owner);
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        if (0 == owner) {
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            return null;
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        }
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        Map settings = null;
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        try {
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            WindowPropertyGetter getter =
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                new WindowPropertyGetter(owner, xSettingsPropertyAtom, 0, MAX_LENGTH,
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                        false, xSettingsPropertyAtom.getAtom() );
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            try {
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                int status = getter.execute(XToolkit.IgnoreBadWindowHandler);
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                if (status != XConstants.Success || getter.getData() == 0) {
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                    if (log.isLoggable(Level.FINE)) log.fine("OH OH : getter failed  status = " + status );
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                    settings = null;
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                }
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                long ptr = getter.getData();
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                if (log.isLoggable(Level.FINE)) log.fine("noItems = " + getter.getNumberOfItems());
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                byte array[] = Native.toBytes(ptr,getter.getNumberOfItems());
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                if (array != null) {
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                    settings = update(array);
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                }
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            } finally {
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                getter.dispose();
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            }
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        }
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        catch (Exception e) {
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            e.printStackTrace();
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        }
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        return settings;
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    }
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}