public void dispatchEvent(XEvent ev) {
super.dispatchEvent(ev);
switch (ev.get_type()) {
case XConstants.CreateNotify:
XCreateWindowEvent cr = ev.get_xcreatewindow();
if (xembedLog.isLoggable(PlatformLogger.FINEST)) {
xembedLog.finest("Message on embedder: " + cr);
}
if (xembedLog.isLoggable(PlatformLogger.FINER)) {
xembedLog.finer(
"Create notify for parent "
+ Long.toHexString(cr.get_parent())
+ ", window "
+ Long.toHexString(cr.get_window()));
}
embedChild(cr.get_window());
break;
case XConstants.DestroyNotify:
XDestroyWindowEvent dn = ev.get_xdestroywindow();
if (xembedLog.isLoggable(PlatformLogger.FINEST)) {
xembedLog.finest("Message on embedder: " + dn);
}
if (xembedLog.isLoggable(PlatformLogger.FINER)) {
xembedLog.finer("Destroy notify for parent: " + dn);
}
childDestroyed();
break;
case XConstants.ReparentNotify:
XReparentEvent rep = ev.get_xreparent();
if (xembedLog.isLoggable(PlatformLogger.FINEST)) {
xembedLog.finest("Message on embedder: " + rep);
}
if (xembedLog.isLoggable(PlatformLogger.FINER)) {
xembedLog.finer(
"Reparent notify for parent "
+ Long.toHexString(rep.get_parent())
+ ", window "
+ Long.toHexString(rep.get_window())
+ ", event "
+ Long.toHexString(rep.get_event()));
}
if (rep.get_parent() == getWindow()) {
// Reparented into us - embed it
embedChild(rep.get_window());
} else {
// Reparented out of us - detach it
childDestroyed();
}
break;
}
}
void endDispatching() {
xembedLog.fine("End dispatching for " + Long.toHexString(xembed.handle));
XToolkit.awtLock();
try {
XDropTargetRegistry.getRegistry().unregisterXEmbedClient(getWindow(), xembed.handle);
// We can't deselect input since someone else might be interested in it
XToolkit.removeEventDispatcher(xembed.handle, xembed);
} finally {
XToolkit.awtUnlock();
}
}
void initDispatching() {
if (xembedLog.isLoggable(PlatformLogger.FINE))
xembedLog.fine("Init embedding for " + Long.toHexString(xembed.handle));
XToolkit.awtLock();
try {
XToolkit.addEventDispatcher(xembed.handle, xembed);
XlibWrapper.XSelectInput(
XToolkit.getDisplay(),
xembed.handle,
XConstants.StructureNotifyMask | XConstants.PropertyChangeMask);
XDropTargetRegistry.getRegistry().registerXEmbedClient(getWindow(), xembed.handle);
} finally {
XToolkit.awtUnlock();
}
xembed.processXEmbedInfo();
notifyChildEmbedded();
}
void detachChild() {
if (xembedLog.isLoggable(PlatformLogger.FINE))
xembedLog.fine("Detaching child " + Long.toHexString(xembed.handle));
/**
* XEmbed specification: "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(), xembed.handle);
XlibWrapper.XReparentWindow(
XToolkit.getDisplay(), xembed.handle, XToolkit.getDefaultRootWindow(), 0, 0);
} finally {
XToolkit.awtUnlock();
}
endDispatching();
xembed.handle = 0;
}
void childDestroyed() {
xembedLog.fine("Child " + Long.toHexString(xembed.handle) + " has self-destroyed.");
endDispatching();
xembed.handle = 0;
}
