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//===========================================================================
//
// This file is part of the KDE project
//
// Copyright (c) 1999 Martin R. Jones <mjones@kde.org>
//
#ifndef __LOCKENG_H__
#define __LOCKENG_H__
#include <tqwidget.h>
#include <kprocess.h>
#include <tqvaluevector.h>
#include "KScreensaverIface.h"
#include "xautolock.h"
#include "xautolock_c.h"
#include <tqdbusconnection.h>
class DCOPClientTransaction;
class TQT_DBusMessage;
class TQT_DBusProxy;
//===========================================================================
/**
* Screen saver engine. Handles screensaver window, starting screensaver
* hacks, and password entry.
*/
class SaverEngine : public TQWidget, public KScreensaverIface
{
Q_OBJECT
public:
SaverEngine();
~SaverEngine();
/**
* Lock the screen
*/
virtual void lock();
/**
* Save the screen
*/
virtual void save();
/**
* Quit the screensaver if running
*/
virtual void quit();
/**
* return true if the screensaver is enabled
*/
virtual bool isEnabled();
/**
* enable/disable the screensaver
*/
virtual bool enable( bool e );
/**
* return true if the screen is currently blanked
*/
virtual bool isBlanked();
/**
* Read and apply configuration.
*/
virtual void configure();
/**
* Enable or disable "blank only" mode. This is useful for
* laptops where one might not want a cpu thirsty screensaver
* draining the battery.
*/
virtual void setBlankOnly( bool blankOnly );
/**
* Called by kdesktop_lock when locking is in effect.
*/
virtual void saverLockReady();
/**
* @internal
*/
void lockScreen(bool DCOP = false);
/**
* Called by KDesktop to wait for saver engage
* @internal
*/
bool waitForLockEngage();
public slots:
void slotLockProcessWaiting();
void slotLockProcessFullyActivated();
void slotLockProcessReady();
void handleDBusSignal(const TQT_DBusMessage&);
protected slots:
void idleTimeout();
void lockProcessExited();
void lockProcessWaiting();
private slots:
void handleSecureDialog();
void slotSAKProcessExited();
/**
* Enable wallpaper exports
*/
void enableExports();
void recoverFromHackingAttempt();
bool dBusReconnect();
private:
bool restartDesktopLockProcess();
void dBusClose();
bool dBusConnect();
void onDBusServiceRegistered(const TQString&);
void onDBusServiceUnregistered(const TQString&);
protected:
enum SaverState { Waiting, Preparing, Engaging, Saving };
enum LockType { DontLock, DefaultLock, ForceLock, SecureDialog };
bool startLockProcess( LockType lock_type );
bool waitForLockProcessStart();
void stopLockProcess();
bool handleKeyPress(XKeyEvent *xke);
void processLockTransactions();
xautolock_corner_t applyManualSettings(int);
protected:
bool mEnabled;
SaverState mState;
XAutoLock *mXAutoLock;
TDEProcess mLockProcess;
int mTimeout;
// the original X screensaver parameters
int mXTimeout;
int mXInterval;
int mXBlanking;
int mXExposures;
bool mBlankOnly; // only use the blanker, not the defined saver
TQValueVector< DCOPClientTransaction* > mLockTransactions;
private:
TDEProcess* mSAKProcess;
bool mTerminationRequested;
bool mSaverProcessReady;
struct sigaction mSignalAction;
TQT_DBusConnection dBusConn;
TQT_DBusProxy* dBusLocal;
TQT_DBusProxy* dBusWatch;
TQT_DBusProxy* systemdSession;
};
#endif
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