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/*
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* Copyright 2005-2007 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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package sun.awt.X11;
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import java.awt.*;
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import java.awt.peer.SystemTrayPeer;
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import java.util.logging.Logger;
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import java.lang.reflect.Method;
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import java.lang.reflect.InvocationTargetException;
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import sun.awt.SunToolkit;
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import sun.awt.AppContext;
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public class XSystemTrayPeer implements SystemTrayPeer, XMSelectionListener {
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private static final Logger log = Logger.getLogger("sun.awt.X11.XSystemTrayPeer");
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SystemTray target;
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static XSystemTrayPeer peerInstance; // there is only one SystemTray peer per application
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private volatile boolean available;
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private final XMSelection selection = new XMSelection("_NET_SYSTEM_TRAY");
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private static final Method firePropertyChangeMethod =
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XToolkit.getMethod(SystemTray.class, "firePropertyChange", new Class[] {String.class, Object.class, Object.class});
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private static final Method addNotifyMethod = XToolkit.getMethod(TrayIcon.class, "addNotify", null);
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private static final Method removeNotifyMethod = XToolkit.getMethod(TrayIcon.class, "removeNotify", null);
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private static final int SCREEN = 0;
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private static final String SYSTEM_TRAY_PROPERTY_NAME = "systemTray";
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private static final XAtom _NET_SYSTEM_TRAY = XAtom.get("_NET_SYSTEM_TRAY_S" + SCREEN);
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private static final XAtom _XEMBED_INFO = XAtom.get("_XEMBED_INFO");
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private static final XAtom _NET_SYSTEM_TRAY_OPCODE = XAtom.get("_NET_SYSTEM_TRAY_OPCODE");
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private static final XAtom _NET_WM_ICON = XAtom.get("_NET_WM_ICON");
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private static final long SYSTEM_TRAY_REQUEST_DOCK = 0;
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XSystemTrayPeer(SystemTray target) {
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this.target = target;
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peerInstance = this;
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selection.addSelectionListener(this);
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long selection_owner = selection.getOwner(SCREEN);
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available = (selection_owner != XConstants.None);
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log.fine(" check if system tray is available. selection owner: " + selection_owner);
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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 (screen != SCREEN) {
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return;
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}
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if (!available) {
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available = true;
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firePropertyChange(SYSTEM_TRAY_PROPERTY_NAME, null, target);
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} else {
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removeTrayPeers();
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}
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createTrayPeers();
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}
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public void ownerDeath(int screen, XMSelection sel, long deadOwner) {
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if (screen != SCREEN) {
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return;
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}
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if (available) {
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available = false;
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firePropertyChange(SYSTEM_TRAY_PROPERTY_NAME, target, null);
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removeTrayPeers();
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}
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}
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public void selectionChanged(int screen, XMSelection sel, long owner, XPropertyEvent event) {
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}
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public Dimension getTrayIconSize() {
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return new Dimension(XTrayIconPeer.TRAY_ICON_HEIGHT, XTrayIconPeer.TRAY_ICON_WIDTH);
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}
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boolean isAvailable() {
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return available;
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}
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void dispose() {
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selection.removeSelectionListener(this);
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}
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// ***********************************************************************
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// ***********************************************************************
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void addTrayIcon(XTrayIconPeer tiPeer) throws AWTException {
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long selection_owner = selection.getOwner(SCREEN);
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log.fine(" send SYSTEM_TRAY_REQUEST_DOCK message to owner: " + selection_owner);
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if (selection_owner == XConstants.None) {
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throw new AWTException("TrayIcon couldn't be displayed.");
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}
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long tray_window = tiPeer.getWindow();
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long data[] = new long[] {XEmbedHelper.XEMBED_VERSION, XEmbedHelper.XEMBED_MAPPED};
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long data_ptr = Native.card32ToData(data);
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_XEMBED_INFO.setAtomData(tray_window, data_ptr, data.length);
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sendMessage(selection_owner, SYSTEM_TRAY_REQUEST_DOCK, tray_window, 0, 0);
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}
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void sendMessage(long win, long msg, long data1, long data2, long data3) {
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XClientMessageEvent xev = new XClientMessageEvent();
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try {
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xev.set_type(XlibWrapper.ClientMessage);
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xev.set_window(win);
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xev.set_format(32);
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xev.set_message_type(_NET_SYSTEM_TRAY_OPCODE.getAtom());
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xev.set_data(0, 0);
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xev.set_data(1, msg);
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xev.set_data(2, data1);
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xev.set_data(3, data2);
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xev.set_data(4, data3);
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XToolkit.awtLock();
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try {
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XlibWrapper.XSendEvent(XToolkit.getDisplay(), win, false,
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XlibWrapper.NoEventMask, xev.pData);
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} finally {
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XToolkit.awtUnlock();
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}
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} finally {
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xev.dispose();
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}
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}
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static XSystemTrayPeer getPeerInstance() {
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return peerInstance;
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}
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private void firePropertyChange(final String propertyName, final Object oldValue, final Object newValue) {
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Runnable runnable = new Runnable() {
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public void run() {
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Object[] args = new Object[] {propertyName, oldValue, newValue};
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invokeMethod(firePropertyChangeMethod, target, args);
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}
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};
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invokeOnEachAppContext(runnable);
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}
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private void createTrayPeers() {
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invokeOnEachTrayIcon(addNotifyMethod);
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}
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private void removeTrayPeers() {
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invokeOnEachTrayIcon(removeNotifyMethod);
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}
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private void invokeOnEachTrayIcon(final Method method) {
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Runnable runnable = new Runnable() {
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public void run() {
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TrayIcon[] icons = target.getTrayIcons();
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for (TrayIcon ti : icons) {
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invokeMethod(method, ti, (Object[]) null);
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}
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}
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};
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invokeOnEachAppContext(runnable);
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}
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private void invokeMethod(Method method, Object obj, Object[] args) {
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try{
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method.invoke(obj, args);
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} catch (InvocationTargetException e){
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e.printStackTrace();
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} catch (IllegalAccessException e) {
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e.printStackTrace();
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}
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}
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private void invokeOnEachAppContext(Runnable runnable) {
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for (AppContext appContext : AppContext.getAppContexts()) {
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SunToolkit.invokeLaterOnAppContext(appContext, runnable);
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}
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}
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}
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