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/*
* ComputerControlInterface.h - interface class for controlling a computer
*
* Copyright (c) 2017-2019 Tobias Junghans <tobydox@veyon.io>
*
* This file is part of Veyon - http://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.
*
*/
#ifndef COMPUTER_CONTROL_INTERFACE_H
#define COMPUTER_CONTROL_INTERFACE_H
#include <QList>
#include <QObject>
#include <QSize>
#include <QTimer>
#include "Computer.h"
#include "Feature.h"
#include "VeyonCore.h"
class QImage;
class BuiltinFeatures;
class FeatureMessage;
class VncConnection;
class VeyonConnection;
class VEYON_CORE_EXPORT ComputerControlInterface : public QObject
{
Q_OBJECT
public:
typedef QSharedPointer<ComputerControlInterface> Pointer;
typedef enum States
{
None,
Disconnected,
Offline,
ServiceUnreachable,
AuthenticationFailed,
Connecting,
Connected,
Unknown,
StateCount
} State;
ComputerControlInterface( const Computer& computer, QObject* parent = nullptr );
~ComputerControlInterface() override;
Pointer weakPointer();
void start( QSize scaledScreenSize, BuiltinFeatures* builtinFeatures );
void stop();
const Computer& computer() const
{
return m_computer;
}
State state() const
{
return m_state;
}
const QSize& scaledScreenSize() const
{
return m_scaledScreenSize;
}
void setScaledScreenSize( QSize size );
QImage scaledScreen() const;
QImage screen() const;
bool hasScreenUpdates() const
{
return m_screenUpdated;
}
void clearScreenUpdateFlag()
{
m_screenUpdated = false;
}
const QString& user() const
{
return m_user;
}
void setUser( const QString& user );
const FeatureUidList& activeFeatures() const
{
return m_activeFeatures;
}
void setActiveFeatures( const FeatureUidList& activeFeatures );
Feature::Uid designatedModeFeature() const
{
return m_designatedModeFeature;
}
void setDesignatedModeFeature( Feature::Uid designatedModeFeature );
void sendFeatureMessage( const FeatureMessage& featureMessage );
private slots:
void setScreenUpdateFlag()
{
m_screenUpdated = true;
}
void resetWatchdog();
void restartConnection();
void updateState();
void updateUser();
void updateActiveFeatures();
void handleFeatureMessage( const FeatureMessage& message );
private:
static const int ActiveFeaturesUpdateInterval = 1000;
static const int UserUpdateInterval = 10000;
static const int ConnectionWatchdogTimeout = 10000;
Computer m_computer;
State m_state;
QString m_user;
FeatureUidList m_activeFeatures;
Feature::Uid m_designatedModeFeature;
QSize m_scaledScreenSize;
VncConnection* m_vncConnection;
VeyonConnection* m_connection;
BuiltinFeatures* m_builtinFeatures;
QTimer m_connectionWatchdogTimer;
bool m_screenUpdated;
signals:
void featureMessageReceived( const FeatureMessage&, ComputerControlInterface::Pointer );
void userChanged();
void activeFeaturesChanged();
};
typedef QVector<ComputerControlInterface::Pointer> ComputerControlInterfaceList;
#endif // COMPUTER_CONTROL_INTERFACE_H
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