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/*
* ComputerControlInterface.h - interface class for controlling a computer
*
* Copyright (c) 2017-2021 Tobias Junghans <tobydox@veyon.io>
*
* This file is part of Veyon - https://veyon.io
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program (see COPYING); if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#pragma once
#include <QList>
#include <QObject>
#include <QSize>
#include <QTimer>
#include "Computer.h"
#include "Feature.h"
#include "Lockable.h"
#include "VeyonCore.h"
#include "VncConnection.h"
class QImage;
class AuthenticationProxy;
class FeatureMessage;
class VncConnection;
class VeyonConnection;
class VEYON_CORE_EXPORT ComputerControlInterface : public QObject, public Lockable
{
Q_OBJECT
public:
enum class UpdateMode {
Disabled,
Monitoring,
Live
};
using Pointer = QSharedPointer<ComputerControlInterface>;
using State = VncConnection::State;
explicit ComputerControlInterface( const Computer& computer, QObject* parent = nullptr );
~ComputerControlInterface() override;
void start( QSize scaledScreenSize = {}, UpdateMode updateMode = UpdateMode::Monitoring, AuthenticationProxy* authenticationProxy = nullptr );
void stop();
const Computer& computer() const
{
return m_computer;
}
State state() const
{
return m_state;
}
bool hasValidFramebuffer() const;
QSize screenSize() const;
const QSize& scaledScreenSize() const
{
return m_scaledScreenSize;
}
void setScaledScreenSize( QSize size );
QImage scaledScreen() const;
QImage screen() const;
const QString& userLoginName() const
{
return m_userLoginName;
}
const QString& userFullName() const
{
return m_userFullName;
}
int userSessionId() const
{
return m_userSessionId;
}
void setUserInformation( const QString& userLoginName, const QString& userFullName, int sessionId );
const FeatureUidList& activeFeatures() const
{
return m_activeFeatures;
}
void setActiveFeatures( const FeatureUidList& activeFeatures );
Feature::Uid designatedModeFeature() const
{
return m_designatedModeFeature;
}
void setDesignatedModeFeature( Feature::Uid designatedModeFeature )
{
m_designatedModeFeature = designatedModeFeature;
}
void updateActiveFeatures();
void sendFeatureMessage( const FeatureMessage& featureMessage, bool wake );
bool isMessageQueueEmpty();
void setUpdateMode( UpdateMode updateMode );
UpdateMode updateMode() const
{
return m_updateMode;
}
Pointer weakPointer();
private:
void resetWatchdog();
void restartConnection();
void updateState();
void updateUser();
void handleFeatureMessage( const FeatureMessage& message );
static constexpr int ConnectionWatchdogTimeout = 10000;
static constexpr int UpdateIntervalDisabled = 5000;
Computer m_computer;
UpdateMode m_updateMode{UpdateMode::Disabled};
State m_state;
QString m_userLoginName;
QString m_userFullName;
int m_userSessionId{0};
FeatureUidList m_activeFeatures;
Feature::Uid m_designatedModeFeature;
QSize m_scaledScreenSize;
VncConnection* m_vncConnection;
VeyonConnection* m_connection;
QTimer m_connectionWatchdogTimer;
QTimer m_userUpdateTimer;
QTimer m_activeFeaturesUpdateTimer;
Q_SIGNALS:
void featureMessageReceived( const FeatureMessage&, ComputerControlInterface::Pointer );
void screenSizeChanged();
void screenUpdated();
void userChanged();
void stateChanged();
void activeFeaturesChanged();
};
using ComputerControlInterfaceList = QVector<ComputerControlInterface::Pointer>;
Q_DECLARE_METATYPE(ComputerControlInterface::Pointer)
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