public void offerFile(ListeningFuture<LocalFileItem> future) {
// TODO: Change this to show event immediately & update as status changes.
future.addFutureListener(
new EventListener<FutureEvent<LocalFileItem>>() {
@SwingEDTEvent
@Override
public void handleEvent(FutureEvent<LocalFileItem> event) {
if (event.getResult() != null) {
FileMetaData metadata = event.getResult().toMetadata();
boolean sentFileOffer = false;
Friend friend = chatFriend.getFriend();
// do not send file offer if user not signed in.
if (!friend.isSignedIn()) {
String errorMsg = I18n.tr("File offer not sent because friend signed off.");
Message msg =
new MessageFileOfferImpl(
I18n.tr("me"), friendId, Message.Type.SENT, metadata, null);
messageBroadcaster.broadcast(new ChatMessageEvent(new ErrorMessage(errorMsg, msg)));
return;
}
// if active presence exists, send file offer to it,
// otherwise broadcast to every presence with FileOfferFeature.ID feature
FriendPresence activePresence = friend.getActivePresence();
if ((activePresence != null) && activePresence.hasFeatures(FileOfferFeature.ID)) {
sentFileOffer = performFileOffer(metadata, activePresence);
} else {
for (FriendPresence presence : friend.getPresences().values()) {
sentFileOffer |= performFileOffer(metadata, presence);
}
}
if (sentFileOffer) {
messageBroadcaster.broadcast(
new ChatMessageEvent(
new MessageFileOfferImpl(
I18n.tr("me"), friendId, Message.Type.SENT, metadata, null)));
} else {
// TODO: handle file offer sending failures (consider using ErrorMessage)
}
}
}
private boolean performFileOffer(FileMetaData metadata, FriendPresence presence) {
Feature fileOfferFeature = presence.getFeature(FileOfferFeature.ID);
boolean fileOfferSent = false;
if (fileOfferFeature != null) {
try {
writer.setChatState(ChatState.active);
FeatureTransport<FileMetaData> fileOfferer =
presence.getTransport(FileOfferFeature.class);
fileOfferer.sendFeature(presence, metadata);
fileOfferSent = true;
} catch (FriendException e) {
LOG.debug("File offer failed", e);
}
}
return fileOfferSent;
}
});
}