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****************************************************************************/

#ifndef QTESTEVENTLOOP_H

#define QTESTEVENTLOOP_H

#include <QtTest/qtest_global.h>

#include <QtCore/qcoreapplication.h>

#include <QtCore/qeventloop.h>

#include <QtCore/qobject.h>

#include <QtCore/qpointer.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

QT_MODULE(Test)

class Q_TESTLIB_EXPORT QTestEventLoop : public QObject

{

    Q_OBJECT

public:

    inline QTestEventLoop(QObject *aParent = 0)

        : QObject(aParent), inLoop(false), _timeout(false), timerId(-1), loop(0) {}

    inline void enterLoop(int secs);

    inline void changeInterval(int secs)

    { killTimer(timerId); timerId = startTimer(secs * 1000); }

    inline bool timeout() const

    { return _timeout; }

    inline static QTestEventLoop &instance()

    {

        static QPointer<QTestEventLoop> testLoop;

        if (testLoop.isNull())

            testLoop = new QTestEventLoop(QCoreApplication::instance());

        return *static_cast<QTestEventLoop *>(testLoop);

    }

public Q_SLOTS:

    inline void exitLoop();

protected:

    inline void timerEvent(QTimerEvent *e);

private:

    bool inLoop;

    bool _timeout;

    int timerId;

    QEventLoop *loop;

};

inline void QTestEventLoop::enterLoop(int secs)

{

    Q_ASSERT(!loop);

    QEventLoop l;

    inLoop = true;

    _timeout = false;

    timerId = startTimer(secs * 1000);

    loop = &l;

    l.exec();

    loop = 0;

}

inline void QTestEventLoop::exitLoop()

{

    if (timerId != -1)

        killTimer(timerId);

    timerId = -1;

    if (loop)

        loop->exit();

    inLoop = false;

}

inline void QTestEventLoop::timerEvent(QTimerEvent *e)

{

    if (e->timerId() != timerId)

        return;

    _timeout = true;

    exitLoop();

}

QT_END_NAMESPACE

QT_END_HEADER

#endif