/*
* 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.
*/
package sun.awt.X11;
import java.awt.*;
import java.util.HashMap;
import java.awt.event.KeyEvent;
import java.lang.reflect.*;
import sun.awt.AWTAccessor;
public class XEmbeddingContainer extends XEmbedHelper implements XEventDispatcher {
HashMap children = new HashMap();
XEmbeddingContainer() {
}
XWindow embedder;
void install(XWindow embedder) {
this.embedder = embedder;
XToolkit.addEventDispatcher(embedder.getWindow(), this);
}
void deinstall() {
XToolkit.removeEventDispatcher(embedder.getWindow(), this);
}
void add(long child) {
if (checkXEmbed(child)) {
Component proxy = createChildProxy(child);
((Container)embedder.getTarget()).add("Center", proxy);
if (proxy.getPeer() != null) {
children.put(Long.valueOf(child), proxy.getPeer());
}
}
}
Component createChildProxy(long child) {
return new XEmbedChildProxy(this, child);
}
void notifyChildEmbedded(long child) {
sendMessage(child, XEMBED_EMBEDDED_NOTIFY, embedder.getWindow(), XEMBED_VERSION, 0);
}
void childResized(Component child) {
}
boolean checkXEmbed(long child) {
long data = unsafe.allocateMemory(8);
try {
if (XEmbedInfo.getAtomData(child, data, 2)) {
int protocol = unsafe.getInt(data);
int flags = unsafe.getInt(data);
return true;
}
} finally {
unsafe.freeMemory(data);
}
return false;
}
void detachChild(long child) {
// The embedder can unmap the client and reparent the client window
// to the root window. If the client receives an ReparentNotify
// event, it should check the parent field of the XReparentEvent
// structure. If this is the root window of the window's screen, then
// the protocol is finished and there is no further interaction. If
// it is a window other than the root window, then the protocol
// continues with the new parent acting as the embedder window.
XToolkit.awtLock();
try {
XlibWrapper.XUnmapWindow(XToolkit.getDisplay(), child);
XlibWrapper.XReparentWindow(XToolkit.getDisplay(), child, XToolkit.getDefaultRootWindow(), 0, 0);
}
finally {
XToolkit.awtUnlock();
}
}
void focusGained(long child) {
sendMessage(child, XEMBED_FOCUS_IN, XEMBED_FOCUS_CURRENT, 0, 0);
}
void focusLost(long child) {
sendMessage(child, XEMBED_FOCUS_OUT);
}
XEmbedChildProxyPeer getChild(long child) {
return (XEmbedChildProxyPeer)children.get(Long.valueOf(child));
}
public void handleClientMessage(XEvent xev) {
XClientMessageEvent msg = xev.get_xclient();
if (msg.get_message_type() == XEmbed.getAtom()) {
switch ((int)msg.get_data(1)) {
case XEMBED_REQUEST_FOCUS:
long child = msg.get_data(2); // Unspecified
getChild(child).requestXEmbedFocus();
break;
}
}
}
public void dispatchEvent(XEvent xev) {
switch(xev.get_type()) {
case XConstants.ClientMessage:
handleClientMessage(xev);
break;
}
}
void forwardKeyEvent(long child, KeyEvent e) {
byte[] bdata = AWTAccessor.getAWTEventAccessor().getBData(e);
long data = Native.toData(bdata);
if (data == 0) {
return;
}
XKeyEvent ke = new XKeyEvent(data);
ke.set_window(child);
XToolkit.awtLock();
try {
XlibWrapper.XSendEvent(XToolkit.getDisplay(), child, false, XConstants.NoEventMask, data);
}
finally {
XToolkit.awtUnlock();
}
XlibWrapper.unsafe.freeMemory(data);
}
}