QXmppCallManager.h

/*
 * Copyright (C) 2008-2012 The QXmpp developers
 *
 * Author:
 *  Jeremy Lainé
 *
 * Source:
 *  http://code.google.com/p/qxmpp
 *
 * This file is a part of QXmpp library.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 */

#ifndef QXMPPCALLMANAGER_H
#define QXMPPCALLMANAGER_H

#include <QObject>
#include <QIODevice>
#include <QMetaType>

#include "QXmppClientExtension.h"
#include "QXmppLogger.h"

class QHostAddress;
class QXmppCallPrivate;
class QXmppCallManager;
class QXmppCallManagerPrivate;
class QXmppIq;
class QXmppJingleCandidate;
class QXmppJingleIq;
class QXmppJinglePayloadType;
class QXmppPresence;
class QXmppRtpAudioChannel;
class QXmppRtpVideoChannel;


class QXMPP_EXPORT QXmppCall : public QXmppLoggable
{
    Q_OBJECT
    Q_ENUMS(Direction State)
    Q_FLAGS(QIODevice::OpenModeFlag QIODevice::OpenMode)
    Q_PROPERTY(Direction direction READ direction CONSTANT)
    Q_PROPERTY(QString jid READ jid CONSTANT)
    Q_PROPERTY(State state READ state NOTIFY stateChanged)
    Q_PROPERTY(QIODevice::OpenMode audioMode READ audioMode NOTIFY audioModeChanged)
    Q_PROPERTY(QIODevice::OpenMode videoMode READ videoMode NOTIFY videoModeChanged)

public:
    enum Direction
    {
        IncomingDirection, 
        OutgoingDirection, 
    };

    enum State
    {
        ConnectingState = 0,    
        ActiveState = 1,        
        DisconnectingState = 2, 
        FinishedState = 3,      
    };

    ~QXmppCall();

    QXmppCall::Direction direction() const;
    QString jid() const;
    QString sid() const;
    QXmppCall::State state() const;

    QXmppRtpAudioChannel *audioChannel() const;
    QIODevice::OpenMode audioMode() const;
    QXmppRtpVideoChannel *videoChannel() const;
    QIODevice::OpenMode videoMode() const;

signals:
    void connected();

    void finished();

    void ringing();

    void stateChanged(QXmppCall::State state);

    void audioModeChanged(QIODevice::OpenMode mode);

    void videoModeChanged(QIODevice::OpenMode mode);

public slots:
    void accept();
    void hangup();
    void startVideo();
    void stopVideo();

private slots:
    void localCandidatesChanged();
    void terminated();
    void updateOpenMode();

private:
    QXmppCall(const QString &jid, QXmppCall::Direction direction, QXmppCallManager *parent);

    QXmppCallPrivate *d;
    friend class QXmppCallManager;
    friend class QXmppCallManagerPrivate;
    friend class QXmppCallPrivate;
};


class QXMPP_EXPORT QXmppCallManager : public QXmppClientExtension
{
    Q_OBJECT

public:
    QXmppCallManager();
    ~QXmppCallManager();
    void setStunServer(const QHostAddress &host, quint16 port = 3478);
    void setTurnServer(const QHostAddress &host, quint16 port = 3478);
    void setTurnUser(const QString &user);
    void setTurnPassword(const QString &password);

    QStringList discoveryFeatures() const;
    bool handleStanza(const QDomElement &element);

signals:
    void callReceived(QXmppCall *call);

    void callStarted(QXmppCall *call);

public slots:
    QXmppCall *call(const QString &jid);

protected:
    void setClient(QXmppClient* client);

private slots:
    void _q_callDestroyed(QObject *object);
    void _q_disconnected();
    void _q_iqReceived(const QXmppIq &iq);
    void _q_jingleIqReceived(const QXmppJingleIq &iq);
    void _q_presenceReceived(const QXmppPresence &presence);

private:
    QXmppCallManagerPrivate *d;
    friend class QXmppCall;
    friend class QXmppCallPrivate;
    friend class QXmppCallManagerPrivate;
};

Q_DECLARE_METATYPE(QXmppCall::State)

#endif