public void interceptPacket(Packet packet) {
Message message = (Message) packet;
Chat chat = connection.getChatManager().getThreadChat(message.getThread());
if (chat == null) {
return;
}
if (updateChatState(chat, ChatState.active)) {
message.addExtension(new ChatStateExtension(ChatState.active));
}
}
/**
* Sets the current state of the provided chat. This method will send an empty bodied Message
* packet with the state attached as a {@link z.org.jivesoftware.smack.packet.PacketExtension}, if
* and only if the new chat state is different than the last state.
*
* @param newState the new state of the chat
* @param chat the chat.
* @throws z.org.jivesoftware.smack.XMPPException when there is an error sending the message
* packet.
*/
public void setCurrentState(ChatState newState, Chat chat) throws XMPPException {
if (chat == null || newState == null) {
throw new IllegalArgumentException("Arguments cannot be null.");
}
if (!updateChatState(chat, newState)) {
return;
}
Message message = new Message();
ChatStateExtension extension = new ChatStateExtension(newState);
message.addExtension(extension);
chat.sendMessage(message);
}
public void processMessage(Chat chat, Message message) {
PacketExtension extension = message.getExtension("http://jabber.org/protocol/chatstates");
if (extension == null) {
return;
}
ChatState state;
try {
state = ChatState.valueOf(extension.getElementName());
} catch (Exception ex) {
return;
}
fireNewChatState(chat, state);
}