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#include "qplatformdefs.h"

#include "qapplication.h"

#include "private/qwscommand_qws_p.h"

#include "qwsdisplay_qws.h"

#include "qwsevent_qws.h"

#include "qwindowsystem_qws.h"

#include "qeventdispatcher_qws_p.h"

#include "private/qeventdispatcher_unix_p.h"

#ifndef QT_NO_THREAD

#  include "qmutex.h"

#endif

#include <errno.h>

QT_BEGIN_NAMESPACE

QT_USE_NAMESPACE

class QEventDispatcherQWSPrivate : public QEventDispatcherUNIXPrivate

{

    Q_DECLARE_PUBLIC(QEventDispatcherQWS)

public:

    inline QEventDispatcherQWSPrivate()

    { }

    QList<QWSEvent*> queuedUserInputEvents;

};

QEventDispatcherQWS::QEventDispatcherQWS(QObject *parent)

    : QEventDispatcherUNIX(*new QEventDispatcherQWSPrivate, parent)

{ }

QEventDispatcherQWS::~QEventDispatcherQWS()

{ }

// from qapplication_qws.cpp

extern QWSDisplay* qt_fbdpy; // QWS `display'

//#define ZERO_FOR_THE_MOMENT

bool QEventDispatcherQWS::processEvents(QEventLoop::ProcessEventsFlags flags)

{

    Q_D(QEventDispatcherQWS);

    // process events from the QWS server

    int           nevents = 0;

    // handle gui and posted events

    d->interrupt = false;

    QApplication::sendPostedEvents();

    while (!d->interrupt) {        // also flushes output buffer ###can be optimized

        QWSEvent *event;

        if (!(flags & QEventLoop::ExcludeUserInputEvents)

            && !d->queuedUserInputEvents.isEmpty()) {

            // process a pending user input event

            event = d->queuedUserInputEvents.takeFirst();

        } else if  (qt_fbdpy->eventPending()) {

            event = qt_fbdpy->getEvent();        // get next event

             if (flags & QEventLoop::ExcludeUserInputEvents) {

                 // queue user input events

                 if (event->type == QWSEvent::Mouse || event->type == QWSEvent::Key) {

                      d->queuedUserInputEvents.append(event);

                        continue;

                 }

             }

        } else {

            break;

        }

        if (filterEvent(event)) {

            delete event;

            continue;

        }

        nevents++;

        bool ret = qApp->qwsProcessEvent(event) == 1;

        delete event;

        if (ret) {

            return true;

        }

    }

    if (!d->interrupt) {

        extern QList<QWSCommand*> *qt_get_server_queue();

        if (!qt_get_server_queue()->isEmpty()) {

            QWSServer::processEventQueue();

        }

        if (QEventDispatcherUNIX::processEvents(flags))

            return true;

    }

    return (nevents > 0);

}

bool QEventDispatcherQWS::hasPendingEvents()

{

    extern uint qGlobalPostedEventsCount(); // from qapplication.cpp

    return qGlobalPostedEventsCount() || qt_fbdpy->eventPending();

}

void QEventDispatcherQWS::startingUp()

{

}

void QEventDispatcherQWS::closingDown()

{

}

void QEventDispatcherQWS::flush()

{

    if(qApp)

        qApp->sendPostedEvents();

    (void)qt_fbdpy->eventPending(); // flush

}

int QEventDispatcherQWS::select(int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,

                                timeval *timeout)

{

    return QEventDispatcherUNIX::select(nfds, readfds, writefds, exceptfds, timeout);

}

QT_END_NAMESPACE