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** This file is part of the QtTest module of the Qt Toolkit.

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** this package.

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** GNU Lesser General Public License Usage

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** General Public License version 2.1 as published by the Free Software

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** $QT_END_LICENSE$

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

#include "QtTest/private/qsignaldumper_p.h"

#include <QtCore/qlist.h>

#include <QtCore/qmetaobject.h>

#include <QtCore/qmetatype.h>

#include <QtCore/qobject.h>

#include <QtCore/qvariant.h>

#include "QtTest/private/qtestlog_p.h"

QT_BEGIN_NAMESPACE

namespace QTest

{

inline static void qPrintMessage(const QByteArray &ba)

{

    QTestLog::info(ba.constData(), 0, 0);

}

Q_GLOBAL_STATIC(QList<QByteArray>, ignoreClasses)

static int iLevel = 0;

static int ignoreLevel = 0;

enum { IndentSpacesCount = 4 };

static QByteArray memberName(const QMetaMethod &member)

{

    QByteArray ba = member.signature();

    return ba.left(ba.indexOf('('));

}

static void qSignalDumperCallback(QObject *caller, int method_index, void **argv)

{

    Q_ASSERT(caller); Q_ASSERT(argv); Q_UNUSED(argv);

    const QMetaObject *mo = caller->metaObject();

    Q_ASSERT(mo);

    QMetaMethod member = mo->method(method_index);

    Q_ASSERT(member.signature());

    if (QTest::ignoreClasses() && QTest::ignoreClasses()->contains(mo->className())) {

        ++QTest::ignoreLevel;

        return;

    }

    QByteArray str;

    str.fill(' ', QTest::iLevel++ * QTest::IndentSpacesCount);

    str += "Signal: ";

    str += mo->className();

    str += '(';

    QString objname = caller->objectName();

    str += objname.toLocal8Bit();

    if (!objname.isEmpty())

        str += ' ';

    str += QByteArray::number(quintptr(caller), 16);

    str += ") ";

    str += QTest::memberName(member);

    str += " (";

    QList<QByteArray> args = member.parameterTypes();

    for (int i = 0; i < args.count(); ++i) {

        const QByteArray &arg = args.at(i);

        int typeId = QMetaType::type(args.at(i).constData());

        if (arg.endsWith('*') || arg.endsWith('&')) {

            str += '(';

            str += arg;

            str += ')';

            if (arg.endsWith('&'))

                str += '@';

            quintptr addr = quintptr(*reinterpret_cast<void **>(argv[i + 1]));

            str.append(QByteArray::number(addr, 16));

        } else if (typeId != QMetaType::Void) {

            str.append(arg)

                .append('(')

                .append(QVariant(typeId, argv[i + 1]).toString().toLocal8Bit())

                .append(')');

        }

        str.append(", ");

    }

    if (str.endsWith(", "))

        str.chop(2);

    str.append(')');

    qPrintMessage(str);

}

static void qSignalDumperCallbackSlot(QObject *caller, int method_index, void **argv)

{

    Q_ASSERT(caller); Q_ASSERT(argv); Q_UNUSED(argv);

    const QMetaObject *mo = caller->metaObject();

    Q_ASSERT(mo);

    QMetaMethod member = mo->method(method_index);

    if (!member.signature())

        return;

    if (QTest::ignoreLevel ||

            (QTest::ignoreClasses() && QTest::ignoreClasses()->contains(mo->className())))

        return;

    QByteArray str;

    str.fill(' ', QTest::iLevel * QTest::IndentSpacesCount);

    str += "Slot: ";

    str += mo->className();

    str += '(';

    QString objname = caller->objectName();

    str += objname.toLocal8Bit();

    if (!objname.isEmpty())

        str += ' ';

    str += QByteArray::number(quintptr(caller), 16);

    str += ") ";

    str += member.signature();

    qPrintMessage(str);

}

static void qSignalDumperCallbackEndSignal(QObject *caller, int /*method_index*/)

{

    Q_ASSERT(caller); Q_ASSERT(caller->metaObject());

    if (QTest::ignoreClasses()

            && QTest::ignoreClasses()->contains(caller->metaObject()->className())) {

        --QTest::ignoreLevel;

        Q_ASSERT(QTest::ignoreLevel >= 0);

        return;

    }

    --QTest::iLevel;

    Q_ASSERT(QTest::iLevel >= 0);

}

}

// this struct is copied from qobject_p.h to prevent us

// from including private Qt headers.

struct QSignalSpyCallbackSet

{

    typedef void (*BeginCallback)(QObject *caller, int method_index, void **argv);

    typedef void (*EndCallback)(QObject *caller, int method_index);

    BeginCallback signal_begin_callback,

                  slot_begin_callback;

    EndCallback signal_end_callback,

                slot_end_callback;

};

extern void Q_CORE_EXPORT qt_register_signal_spy_callbacks(const QSignalSpyCallbackSet &);

void QSignalDumper::startDump()

{

    static QSignalSpyCallbackSet set = { QTest::qSignalDumperCallback,

        QTest::qSignalDumperCallbackSlot, QTest::qSignalDumperCallbackEndSignal, 0 };

    qt_register_signal_spy_callbacks(set);

}

void QSignalDumper::endDump()

{

    static QSignalSpyCallbackSet nset = { 0, 0, 0 ,0 };

    qt_register_signal_spy_callbacks(nset);

}

void QSignalDumper::ignoreClass(const QByteArray &klass)

{

    if (QTest::ignoreClasses())

        QTest::ignoreClasses()->append(klass);

}

void QSignalDumper::clearIgnoredClasses()

{

    if (QTest::ignoreClasses())

        QTest::ignoreClasses()->clear();

}

QT_END_NAMESPACE