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

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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**

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** No Commercial Usage

** This file contains pre-release code and may not be distributed.

** You may use this file in accordance with the terms and conditions

** contained in the Technology Preview License Agreement accompanying

** this package.

**

** GNU Lesser General Public License Usage

** Alternatively, this file may be used under the terms of the GNU Lesser

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

** Foundation and appearing in the file LICENSE.LGPL included in the

** packaging of this file.  Please review the following information to

** ensure the GNU Lesser General Public License version 2.1 requirements

** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

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** $QT_END_LICENSE$

**

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

#include <exception>

#include <e32base.h>

#include <e32uid.h>

#include "qcore_symbian_p.h"

#include <string>

QT_BEGIN_NAMESPACE

/*

    Helper function for calling into Symbian classes that expect a TDes&.

    This function converts a QString to a TDes by allocating memory that

    must be deleted by the caller.

*/

Q_CORE_EXPORT HBufC* qt_QString2HBufC(const QString& aString)

{

    HBufC *buffer;

#ifdef QT_NO_UNICODE

    TPtrC8 ptr(reinterpret_cast<const TUint8*>(aString.toLocal8Bit().constData()));

#else

    TPtrC16 ptr(qt_QString2TPtrC(aString));

#endif

    buffer = q_check_ptr(HBufC::New(ptr.Length()));

    buffer->Des().Copy(ptr);

    return buffer;

}

Q_CORE_EXPORT QString qt_TDesC2QString(const TDesC& aDescriptor)

{

#ifdef QT_NO_UNICODE

    return QString::fromLocal8Bit(aDescriptor.Ptr(), aDescriptor.Length());

#else

    return QString(reinterpret_cast<const QChar *>(aDescriptor.Ptr()), aDescriptor.Length());

#endif

}

QHBufC::QHBufC()

    : m_hBufC(0)

{

}

QHBufC::QHBufC(const QHBufC &src)

	: m_hBufC(q_check_ptr(src.m_hBufC->Alloc()))

{

}

/*!

  \internal

  Constructs a QHBufC from an HBufC. Note that the QHBufC instance takes

  ownership of the HBufC.

*/

QHBufC::QHBufC(HBufC *src)

    : m_hBufC(src)

{

}

QHBufC::QHBufC(const QString &src)

{

    m_hBufC = qt_QString2HBufC(src);

}

QHBufC::~QHBufC()

{

    if (m_hBufC)

        delete m_hBufC;

}

class QS60PluginResolver

{

public:

    QS60PluginResolver()

        : initTried(false) {}

    ~QS60PluginResolver() {

        lib.Close();

    }

    TLibraryFunction resolve(int ordinal) {

        if (!initTried) {

            init();

            initTried = true;

        }

        if (lib.Handle())

            return lib.Lookup(ordinal);

        else

            return reinterpret_cast<TLibraryFunction>(NULL);

    }

private:

    void init()

    {

#ifdef Q_WS_S60

        _LIT(KLibName_3_1, "qts60plugin_3_1" QT_LIBINFIX_UNICODE L".dll");

        _LIT(KLibName_3_2, "qts60plugin_3_2" QT_LIBINFIX_UNICODE L".dll");

        _LIT(KLibName_5_0, "qts60plugin_5_0" QT_LIBINFIX_UNICODE L".dll");

        TPtrC libName;

        TInt uidValue;

        switch (QSysInfo::s60Version()) {

        case QSysInfo::SV_S60_3_1:

            libName.Set(KLibName_3_1);

            uidValue = 0x2001E620;

            break;

        case QSysInfo::SV_S60_3_2:

            libName.Set(KLibName_3_2);

            uidValue = 0x2001E621;

            break;

        case QSysInfo::SV_S60_5_0: // Fall through to default

        default:

            // Default to 5.0 version, as any unknown platform is likely to be newer than that

            libName.Set(KLibName_5_0);

            uidValue = 0x2001E622;

            break;

        }

        TUidType libUid(KDynamicLibraryUid, KSharedLibraryUid, TUid::Uid(uidValue));

        lib.Load(libName, libUid);

#endif

    }

    RLibrary lib;

    bool initTried;

};

Q_GLOBAL_STATIC(QS60PluginResolver, qt_s60_plugin_resolver);

/*!

  \internal

  Resolves a platform version specific function from S60 plugin.

  If plugin is missing or resolving fails for another reason, NULL is returned.

*/

Q_CORE_EXPORT TLibraryFunction qt_resolveS60PluginFunc(int ordinal)

{

    return qt_s60_plugin_resolver()->resolve(ordinal);

}

class QS60RFsSession

{

public:

    QS60RFsSession() {

        qt_symbian_throwIfError(iFs.Connect());

        qt_symbian_throwIfError(iFs.ShareProtected());

    }

    ~QS60RFsSession() {

        iFs.Close();

    }

    RFs& GetRFs() {

        return iFs;

    }

private:

    RFs iFs;

};

Q_GLOBAL_STATIC(QS60RFsSession, qt_s60_RFsSession);

Q_CORE_EXPORT RFs& qt_s60GetRFs()

{

    return qt_s60_RFsSession()->GetRFs();

}

QT_END_NAMESPACE