boolean processXEmbedInfo() {
long xembed_info_data = Native.allocateLongArray(2);
try {
if (!XEmbedInfo.getAtomData(handle, xembed_info_data, 2)) {
// No more XEMBED_INFO? This is not XEmbed client!
// Unfortunately this is the initial state of the most clients
// FIXME: add 5-state processing
// childDestroyed();
xembedLog.finer("Unable to get XEMBED_INFO atom data");
return false;
}
version = Native.getCard32(xembed_info_data, 0);
flags = Native.getCard32(xembed_info_data, 1);
boolean new_mapped = (flags & XEMBED_MAPPED) != 0;
boolean currently_mapped = XlibUtil.getWindowMapState(handle) != XConstants.IsUnmapped;
if (new_mapped != currently_mapped) {
if (xembedLog.isLoggable(PlatformLogger.FINER))
xembedLog.fine(
"Mapping state of the client has changed, old state: "
+ currently_mapped
+ ", new state: "
+ new_mapped);
if (new_mapped) {
XToolkit.awtLock();
try {
XlibWrapper.XMapWindow(XToolkit.getDisplay(), handle);
} finally {
XToolkit.awtUnlock();
}
} else {
XToolkit.awtLock();
try {
XlibWrapper.XUnmapWindow(XToolkit.getDisplay(), handle);
} finally {
XToolkit.awtUnlock();
}
}
} else {
xembedLog.finer("Mapping state didn't change, mapped: " + currently_mapped);
}
return true;
} finally {
XlibWrapper.unsafe.freeMemory(xembed_info_data);
}
}
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;
}