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