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#include "qscreensaver_linux_p.h"

#if !defined(QT_NO_X11)
#include <X11/Xlib.h>
#endif // QT_NO_X11

QT_BEGIN_NAMESPACE

QScreenSaverPrivate::QScreenSaverPrivate(QScreenSaver *parent)
    : q_ptr(parent)
{
}

bool QScreenSaverPrivate::screenSaverEnabled()
{
#if !defined(QT_NO_X11)
    int timeout = 0;
    int interval = 0;
    int preferBlanking = 0;
    int allowExposures = 0;
    Display *display = XOpenDisplay(0);
    XGetScreenSaver(display, &timeout, &interval, &preferBlanking, &allowExposures);
    XCloseDisplay(display);
    return (timeout > 0);
#else
    return false;
#endif
}

void QScreenSaverPrivate::setScreenSaverEnabled(bool enabled)
{
#if !defined(QT_NO_X11)
    int timeout = 0;
    int interval = 0;
    int preferBlanking = 0;
    int allowExposures = 0;
    Display *display = XOpenDisplay(0);
    XGetScreenSaver(display, &timeout, &interval, &preferBlanking, &allowExposures);

    if (enabled && timeout > 0)
        XSetScreenSaver(display, -1, interval, preferBlanking, allowExposures);
    else if (!enabled && timeout != 0)
        XSetScreenSaver(display, 0, interval, preferBlanking, allowExposures);

    XCloseDisplay(display);
#else
    Q_UNUSED(enabled)
#endif
}

QT_END_NAMESPACE