/*
* Tracks changes of available formats.
* NOTE: This method may be called by privileged threads.
* DO NOT INVOKE CLIENT CODE ON THIS THREAD!
*/
private void checkChange(XSelectionEvent xse) {
final long propertyAtom = xse.get_property();
if (propertyAtom != getTargetsPropertyAtom().getAtom()) {
// wrong atom
return;
}
final XAtom selectionAtom = XAtom.get(xse.get_selection());
final XSelection changedSelection = XSelection.getSelection(selectionAtom);
if (null == changedSelection || changedSelection != selection) {
// unknown selection - do nothing
return;
}
isSelectionNotifyProcessed = true;
if (selection.isOwner()) {
// selection is owner - do not need formats
return;
}
long[] formats = null;
if (propertyAtom == XConstants.None) {
// We treat None property atom as "empty selection".
formats = new long[0];
} else {
WindowPropertyGetter targetsGetter =
new WindowPropertyGetter(
XWindow.getXAWTRootWindow().getWindow(),
XAtom.get(propertyAtom),
0,
XSelection.MAX_LENGTH,
true,
XConstants.AnyPropertyType);
try {
targetsGetter.execute();
formats = XSelection.getFormats(targetsGetter);
} finally {
targetsGetter.dispose();
}
}
checkChange(formats);
}
public void dispatchEvent(XEvent ev) {
if (ev.get_type() == XConstants.SelectionNotify) {
final XSelectionEvent xse = ev.get_xselection();
XClipboard clipboard = null;
synchronized (XClipboard.classLock) {
if (targetsAtom2Clipboard != null && !targetsAtom2Clipboard.isEmpty()) {
XToolkit.removeEventDispatcher(XWindow.getXAWTRootWindow().getWindow(), this);
return;
}
final long propertyAtom = xse.get_property();
clipboard = targetsAtom2Clipboard.get(propertyAtom);
}
if (null != clipboard) {
clipboard.checkChange(xse);
}
}
}
