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/*
* Copyright (c) 2010-2016 Isode Limited.
* All rights reserved.
* See the COPYING file for more information.
*/
#pragma once
#include <map>
#include <string>
#include <boost/signals2.hpp>
#include <Swiften/Base/API.h>
#include <Swiften/Elements/Presence.h>
namespace Swift {
class StanzaChannel;
class XMPPRoster;
/**
* The PresenceOracle class observes all received presence stanzas for
* the \ref StanzaChannel class passed in the constructor and maintains a
* cache.
*/
class SWIFTEN_API PresenceOracle {
public:
PresenceOracle(StanzaChannel* stanzaChannel, XMPPRoster* roster);
~PresenceOracle();
Presence::ref getLastPresence(const JID&) const;
Presence::ref getHighestPriorityPresence(const JID& bareJID) const;
std::vector<Presence::ref> getAllPresence(const JID& bareJID) const;
/**
* \brief Returns the relevant presence for a list of resource presences.
*
* It only takes the presence show type into account. Priorities are
* ignored as various clients set them to arbitrary values unrelated
* to actual end point availability.
*
* The presences of the resources are group by availablilty and sorted
* by show type in the following order:
*
* -# Online
* -# Free for Chat
* -# Available
* -# Away
* -# DND
* -# Extended Away
* -# Away
* -# Offline
* -# Unavailable
*/
static Presence::ref getActivePresence(const std::vector<Presence::ref> presences);
/**
* \brief This considers all online resources of a bare JID and returns
* the value returned by \ref getActivePresence when passing this list.
*/
Presence::ref getAccountPresence(const JID& jid) const;
public:
boost::signals2::signal<void (Presence::ref)> onPresenceChange;
private:
void handleIncomingPresence(Presence::ref presence);
void handleStanzaChannelAvailableChanged(bool);
void handleJIDRemoved(const JID& removedJID);
private:
typedef std::map<JID, Presence::ref> PresenceMap;
typedef std::map<JID, PresenceMap> PresencesMap;
PresencesMap entries_;
StanzaChannel* stanzaChannel_;
XMPPRoster* xmppRoster_;
};
}
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Swift