@Override
public void receivedDelete(Chat chat, String nid) {
Chat localChat = chatHelper.getChat(chat.getNetworkChatID());
if (chat.isAdmin(nid)) {
if (localChat != null && localChat.isGroupChat()) {
chatHelper.delete(chat);
}
} else {
if (localChat != null && localChat.isGroupChat()) {
chatHelper.removeReceiver(chat, contactHelper.getContactByNetworkingID(nid));
}
}
}
/**
* Initialises a new ChatHanlder with the given context and messaging protocol. Also starts
* observing the chat model.
*
* <p>This class needs the network identifier of the current device. If the own network identifier
* is not jet set in the model, this method will throw a null pointer exception.
*
* @param context the current application context
* @param messagingProtocol the current messaging protocol
*/
public ChatHandler(Context context, MessagingProtocol messagingProtocol) {
this.context = context;
chatHelper = HelperFactory.getChatHelper(context);
contactHelper = HelperFactory.getContacHelper(context);
chatHelper.addObserver(this);
this.messagingProtocol = messagingProtocol;
self = HelperFactory.getContacHelper(context).getSelf();
}
@Override
public void receivedUpdate(Chat chat) {
if (!containsSelf(chat)) {
return;
}
if (!chat.isGroupChat()) {
Chat oldChat = chatHelper.getChat(chat.getNetworkChatID());
if (oldChat == null) {
Contact self = contactHelper.getSelf();
for (Contact c : chat.getReceivers()) {
if (!c.getNetworkingId().equals(self.getNetworkingId())) {
chat.setTitle(c.getName(context));
}
}
} else {
chat.setTitle(oldChat.getTitle());
}
}
chatHelper.update(chat);
}
@Override
public void receivedInsert(Chat chat) {
chatHelper.insert(chat);
}