@Override
public void propertyChanged(final VirtualFilePropertyEvent event) {
if (VirtualFile.PROP_WRITABLE.equals(event.getPropertyName())) {
final VirtualFile file = event.getFile();
final Document document = getCachedDocument(file);
if (document == null) return;
ApplicationManager.getApplication()
.runWriteAction(
new ExternalChangeAction() {
@Override
public void run() {
document.setReadOnly(!event.getFile().isWritable());
}
});
// myUnsavedDocuments.remove(document); //?
}
}