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//----------------------------------------------------------------------------
//
// This file is part of the KDE project
//
// Copyright (c) 1999 Martin R. Jones <mjones@kde.org>
// Copyright (c) 2003 Lubos Lunak <l.lunak@kde.org>
//
// KDE screensaver engine
//
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "xautolock.h"
#include "xautolock.moc"
#include <kapplication.h>
#include <kdebug.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <ctime>
#include "xautolock_c.h"
#ifdef HAVE_DPMS
extern "C" {
#include <X11/Xmd.h>
#ifndef Bool
#define Bool BOOL
#endif
#include <X11/extensions/dpms.h>
#ifndef HAVE_DPMSINFO_PROTO
Status DPMSInfo ( Display *, CARD16 *, BOOL * );
#endif
}
#endif
int xautolock_useXidle = 0;
int xautolock_useMit = 0;
xautolock_corner_t xautolock_corners[ 4 ];
static XAutoLock* self = NULL;
extern "C" {
static int catchFalseAlarms(Display *, XErrorEvent *)
{
return 0;
}
}
//===========================================================================
//
// Detect user inactivity.
// Named XAutoLock after the program that it is based on.
//
XAutoLock::XAutoLock()
{
self = this;
xautolock_useXidle = 0;
xautolock_useMit = 0;
#ifdef HAVE_XIDLE
int dummy1;
xautolock_useXidle = XidleQueryExtension( qt_xdisplay(), &dummy1, &dummy1 );
#endif
#ifdef HAVE_XSCREENSAVER
int dummy2;
if( !xautolock_useXidle )
xautolock_useMit = XScreenSaverQueryExtension( qt_xdisplay(), &dummy2, &dummy2 );
#endif
if( !xautolock_useXidle && !xautolock_useMit )
{
kapp->installX11EventFilter( this );
int (*oldHandler)(Display *, XErrorEvent *);
oldHandler = XSetErrorHandler(catchFalseAlarms);
XSync(qt_xdisplay(), False );
xautolock_initDiy( qt_xdisplay());
XSync(qt_xdisplay(), False );
XSetErrorHandler(oldHandler);
}
mTimeout = DEFAULT_TIMEOUT;
mDPMS = true;
resetTrigger();
time(&mLastTimeout);
mActive = false;
mTimerId = startTimer( CHECK_INTERVAL );
}
//---------------------------------------------------------------------------
//
// Destructor.
//
XAutoLock::~XAutoLock()
{
self = NULL;
}
//---------------------------------------------------------------------------
//
// The time in seconds of continuous inactivity.
//
void XAutoLock::setTimeout(int t)
{
mTimeout = t;
resetTrigger();
}
void XAutoLock::setDPMS(bool s)
{
#ifdef HAVE_DPMS
BOOL on;
CARD16 state;
DPMSInfo( qt_xdisplay(), &state, &on );
if (!on)
s = false;
#endif
mDPMS = s;
}
//---------------------------------------------------------------------------
//
// Start watching Activity
//
void XAutoLock::start()
{
resetTrigger();
time(&mLastTimeout);
mActive = true;
}
//---------------------------------------------------------------------------
//
// Stop watching Activity
//
void XAutoLock::stop()
{
mActive = false;
}
//---------------------------------------------------------------------------
//
// Reset the trigger time.
//
void XAutoLock::resetTrigger()
{
mTrigger = time(0) + mTimeout;
}
//---------------------------------------------------------------------------
//
// Move the trigger time in order to postpone (repeat) emitting of timeout().
//
void XAutoLock::postpone()
{
mTrigger = time(0) + 60; // delay by 60sec
}
//---------------------------------------------------------------------------
//
// Set the remaining time to 't', if it's shorter than already set.
//
void XAutoLock::setTrigger( time_t t )
{
if( t < mTrigger )
mTrigger = t;
}
//---------------------------------------------------------------------------
//
// Process new windows and check the mouse.
//
void XAutoLock::timerEvent(TQTimerEvent *ev)
{
if (ev->timerId() != mTimerId)
{
return;
}
int (*oldHandler)(Display *, XErrorEvent *) = NULL;
if( !xautolock_useXidle && !xautolock_useMit )
{ // only the diy way needs special X handler
XSync( qt_xdisplay(), False );
oldHandler = XSetErrorHandler(catchFalseAlarms);
}
xautolock_processQueue();
time_t now = time(0);
if ((now > mLastTimeout && now - mLastTimeout > TIME_CHANGE_LIMIT) ||
(mLastTimeout > now && mLastTimeout - now > TIME_CHANGE_LIMIT+1))
{
/* the time has changed in one large jump. This could be because
the date was changed, or the machine was suspended. We'll just
reset the triger. */
resetTrigger();
}
mLastTimeout = now;
xautolock_queryIdleTime( qt_xdisplay());
xautolock_queryPointer( qt_xdisplay());
if( !xautolock_useXidle && !xautolock_useMit )
XSetErrorHandler(oldHandler);
bool activate = false;
//kdDebug() << now << " " << mTrigger << endl;
if (now >= mTrigger)
{
resetTrigger();
activate = true;
}
#ifdef HAVE_DPMS
BOOL on;
CARD16 state;
DPMSInfo( qt_xdisplay(), &state, &on );
//kdDebug() << "DPMSInfo " << state << " " << on << endl;
// If DPMS is active, it makes XScreenSaverQueryInfo() report idle time
// that is always smaller than DPMS timeout (X bug I guess). So if DPMS
// saving is active, simply always activate our saving too, otherwise
// this could prevent locking from working.
if(state == DPMSModeStandby || state == DPMSModeSuspend || state == DPMSModeOff)
activate = true;
if(!on && mDPMS) {
activate = false;
#ifdef HAVE_XSCREENSAVER
XForceScreenSaver(qt_xdisplay(), ScreenSaverReset );
#endif
resetTrigger();
}
#endif
#ifdef HAVE_XSCREENSAVER
static XScreenSaverInfo* mitInfo = 0;
if (!mitInfo) mitInfo = XScreenSaverAllocInfo ();
if (XScreenSaverQueryInfo (qt_xdisplay(), DefaultRootWindow (qt_xdisplay()), mitInfo)) {
//kdDebug() << "XScreenSaverQueryInfo " << mitInfo->state << " " << ScreenSaverDisabled << endl;
if (mitInfo->state == ScreenSaverDisabled)
activate = false;
}
#endif
if(mActive && activate)
emit timeout();
}
bool XAutoLock::x11Event( XEvent* ev )
{
xautolock_processEvent( ev );
// don't futher process key events that were received only because XAutoLock wants them
if( ev->type == KeyPress && !ev->xkey.send_event
&& !xautolock_useXidle && !xautolock_useMit
&& !TQWidget::find( ev->xkey.window ))
return true;
return false;
}
bool XAutoLock::ignoreWindow( WId w )
{
if( w != qt_xrootwin() && TQWidget::find( w ))
return true;
return false;
}
extern "C"
void xautolock_resetTriggers()
{
self->resetTrigger();
}
extern "C"
void xautolock_setTrigger( time_t t )
{
self->setTrigger( t );
}
extern "C"
int xautolock_ignoreWindow( Window w )
{
return self->ignoreWindow( w );
}
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