import eu.siacs.conversations.xmpp.jid.Jid; //導入方法依賴的package包/類
public void parseContactPresence(final PresencePacket packet, final Account account) {
final PresenceGenerator mPresenceGenerator = mXmppConnectionService.getPresenceGenerator();
final Jid from = packet.getFrom();
if (from == null) {
return;
}
final String type = packet.getAttribute("type");
final Contact contact = account.getRoster().getContact(from);
if (type == null) {
String presence = from.isBareJid() ? "" : from.getResourcepart();
contact.setPresenceName(packet.findChildContent("nick", "http://jabber.org/protocol/nick"));
Avatar avatar = Avatar.parsePresence(packet.findChild("x", "vcard-temp:x:update"));
if (avatar != null && !contact.isSelf()) {
avatar.owner = from.toBareJid();
if (mXmppConnectionService.getFileBackend().isAvatarCached(avatar)) {
if (contact.setAvatar(avatar)) {
mXmppConnectionService.getAvatarService().clear(contact);
mXmppConnectionService.updateConversationUi();
mXmppConnectionService.updateRosterUi();
}
} else {
mXmppConnectionService.fetchAvatar(account, avatar);
}
}
int sizeBefore = contact.getPresences().size();
contact.updatePresence(presence, Presences.parseShow(packet.findChild("show")));
PgpEngine pgp = mXmppConnectionService.getPgpEngine();
Element x = packet.findChild("x", "jabber:x:signed");
if (pgp != null && x != null) {
Element status = packet.findChild("status");
String msg = status != null ? status.getContent() : "";
contact.setPgpKeyId(pgp.fetchKeyId(account, msg, x.getContent()));
}
boolean online = sizeBefore < contact.getPresences().size();
updateLastseen(packet, account, false);
mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, online);
} else if (type.equals("unavailable")) {
if (from.isBareJid()) {
contact.clearPresences();
} else {
contact.removePresence(from.getResourcepart());
}
mXmppConnectionService.onContactStatusChanged.onContactStatusChanged(contact, false);
} else if (type.equals("subscribe")) {
if (contact.getOption(Contact.Options.PREEMPTIVE_GRANT)) {
mXmppConnectionService.sendPresencePacket(account,
mPresenceGenerator.sendPresenceUpdatesTo(contact));
} else {
contact.setOption(Contact.Options.PENDING_SUBSCRIPTION_REQUEST);
final Conversation conversation = mXmppConnectionService.findOrCreateConversation(
account, contact.getJid().toBareJid(), false);
final String statusMessage = packet.findChildContent("status");
if (statusMessage != null
&& !statusMessage.isEmpty()
&& conversation.countMessages() == 0) {
conversation.add(new Message(
conversation,
statusMessage,
Message.ENCRYPTION_NONE,
Message.STATUS_RECEIVED
));
}
}
}
mXmppConnectionService.updateRosterUi();
}