/*

* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Java Installer component iconconverter.

*                Reads icon and .jar file and stores it a temp file in a

*                format that can be shown by the S60 UI shell.

*

*/

#include <zipfile.h>

#include <time.h>

#include "javacommonutils.h"

#include "logger.h"

#include "mifconverter.h"

#include "iconconverter.h"

namespace java

{

/**

 * The icon in S60 temporary drive

 */

// MIF file constants

const TInt KMifFileHeaderUid = 0x34232342;

const TInt KMifFileHeaderVersion = 2;

const TInt KMifFileHeaderLength = 2;

const TInt KMifIconHeaderUid = 0x34232343;

const TInt KMifIconHeaderVersion = 1;

const TInt KMifIconHeaderType = 1;

const TInt KMifIconHeaderAnimated = 0;

CIconConverter* CIconConverter::NewL(RFs& aRFs)

{

    return new(ELeave) CIconConverter(aRFs);

}

CIconConverter::CIconConverter(RFs &aRFs)

{

    iRFs = aRFs;

    iImageDecoder = NULL;

    iBitmap = NULL;

    iBitmapMask = NULL;

    // In case there is no UI on the device ( as when installing an app or

    // MIDlet suite from PC ) make sure there is an instance of FBS running

    RFbsSession::Connect();

    iActiveListener = NULL;

}

CIconConverter::~CIconConverter()

{

    // Do NOT close file server session

    delete iBitmapMask;

    delete iBitmap;

    delete iImageDecoder;

    RFbsSession::Disconnect();

    delete iActiveListener;

}

int CIconConverter::Convert(

    const TDesC &aJarFile,

    const TDesC &aIconFile,

    const TDesC &aOutputFile,

    TBool *apWasMbm)

{

    int ret = 0;

    CActiveScheduler* pScheduler = NULL;

    if (NULL == CActiveScheduler::Current())

    {

        // Must create active scheduler for this JNI thread

        // to be able to make asynchronous calls

        pScheduler = new CActiveScheduler();

        CActiveScheduler::Install(pScheduler);

    }

    TRAPD(err, ret = ConvertL(aJarFile, aIconFile, aOutputFile, apWasMbm));

    delete pScheduler;

    if (KErrNone != err)

    {

        return err;

    }

    return ret;

}

int CIconConverter::ConvertL(

    const TDesC &aJarFile,

    const TDesC &aIconFile,

    const TDesC &aOutputFile,

    TBool *apWasMbm)

{

    // open jar file

    CZipFile *pZipFile = CZipFile::NewL(iRFs, aJarFile);

    CleanupStack::PushL(pZipFile);

    // try to open the icon inside the jar file

    CZipFileMember *pZipMember = NULL;

    // Does the icon name start with '/'

    if (aIconFile.Locate('/') == 0)

    {

        // remove the leading '/' character

        TFileName tempName = aIconFile.Right(aIconFile.Length() - 1);

        pZipMember = pZipFile->MemberL(tempName);

    }

    else

    {

        pZipMember = pZipFile->MemberL(aIconFile);

    }

    if (NULL == pZipMember)

    {

        LOG(EJavaInstaller, EInfo, "Cannot find icon inside .jar file");

        User::Leave(KErrNotFound);

    }

    CleanupStack::PushL(pZipMember);

    // reserve buffer for uncompressed icon

    TUint32 iconSize = pZipMember->UncompressedSize();

    HBufC8* pIconBuf = HBufC8::NewL(iconSize);

    CleanupStack::PushL(pIconBuf);

    TPtr8 ptrIconBuf(NULL, 0);

    ptrIconBuf.Set(pIconBuf->Des());

    RZipFileMemberReaderStream *pReader = NULL;

    User::LeaveIfError(pZipFile->GetInputStreamL(pZipMember, pReader));

    CleanupStack::PushL(pReader);

    // read icon to buffer

    User::LeaveIfError(pReader->Read(ptrIconBuf, iconSize));

    CleanupStack::PopAndDestroy(pReader);

    // free unnecessary objects

    CleanupStack::Pop(pIconBuf); // this is still needed

    CleanupStack::PopAndDestroy(pZipMember);

    CleanupStack::PopAndDestroy(pZipFile);

    CleanupStack::PushL(pIconBuf);

    // Icon buffer contains SVG icon if the content of the buffer

    // starts with _L8("<?xml")

    if ((iconSize > 5) &&

            (ptrIconBuf[0] == 0x3c) &&

            (ptrIconBuf[1] == 0x3f) &&

            (ptrIconBuf[2] == 0x78) &&

            (ptrIconBuf[3] == 0x6d) &&

            (ptrIconBuf[4] == 0x6c))

    {

        *apWasMbm = EFalse;

        return ConvertScalableIconL(pIconBuf, aOutputFile);

    }

    else

    {

        *apWasMbm = ETrue;

        return ConvertNormalIconL(pIconBuf, ptrIconBuf, aOutputFile);

    }

}

int CIconConverter::ConvertNormalIconL(

    HBufC8* apIconBuf,

    TPtr8& aptrIconBuf,

    const TDesC &aOutputFile)

{

    // convert icon in buffer to bitmap

    if (NULL == iImageDecoder)

    {

        // create image decoder if not yet created

        iImageDecoder = CBufferedImageDecoder::NewL(iRFs);

    }

    // Try to create a decoder implementation for the image in the buffer

    TRAPD(err, iImageDecoder->OpenL(aptrIconBuf));

    if (KErrNotFound == err)

    {

        // If the format is unrecognised AND the first 2 bytes are 0 then

        // we assume it is a WBMP.

        // The first two bytes of other formats (e.g. ico) may also begin with 0, 0

        // but they should have already been recognised by the first call to OpenL.

        if (((*apIconBuf)[0] == 0) && ((*apIconBuf)[1] == 0))

        {

            delete iImageDecoder;

            iImageDecoder = NULL;

            iImageDecoder = CBufferedImageDecoder::NewL(iRFs);

            WLOG(EJavaInstaller, "CIconConverter::ConvertNormalIconL - Format "

                 "can't be fully identified, assuming this is WBMP");

            _LIT8(KWBMPMimeType, "image/vnd.wap.wbmp");

            iImageDecoder->OpenL(aptrIconBuf, KWBMPMimeType);

            err = KErrNone;

        }

    }

    // Leave if we could not recover from error

    User::LeaveIfError(err);

    // get info concerning the icon

    TFrameInfo frameInfo = iImageDecoder->FrameInfo(0);

    // create bitmap for icon

    iBitmap = new(ELeave) CFbsBitmap;

    User::LeaveIfError(iBitmap->Create(frameInfo.iOverallSizeInPixels, EColor16M));

    // create bitmap for mask

    iBitmapMask = new(ELeave) CFbsBitmap;

    User::LeaveIfError(iBitmapMask->Create(frameInfo.iOverallSizeInPixels, EGray256));

    // Convert icon to bitmap and possible mask.

    // Wait until the asynch conversion has been done.

    iActiveListener = new(ELeave) CActiveListener();

    iActiveListener->InitialiseActiveListener();

    // Note that this does not generate mask if the image does not contain it

    iImageDecoder->Convert(&(iActiveListener->iStatus),

                           *iBitmap,

                           *iBitmapMask);

    CActiveScheduler::Start();

    delete iActiveListener;

    iActiveListener = NULL;

    TInt32 sourceIds[] = {0, 0};

    CleanupStack::PushL(filenames);

    CleanupStack::PushL(filenames[0]);

    CleanupStack::PushL(filenames[1]);

    // Now try to delete the temp icon and mask files,

    // ignore possible errors

    CleanupStack::PopAndDestroy(filenames[1]);

    CleanupStack::PopAndDestroy(filenames[0]);

    CleanupStack::PopAndDestroy(filenames);

    CleanupStack::PopAndDestroy(apIconBuf);

    return KErrNone;

}

int CIconConverter::ConvertScalableIconL(

    HBufC8* apIconBuf,

    const TDesC &aOutputFile)

{

    TInt iconDataSize = apIconBuf->Length();

    // File header

    TMifFileHeader fileHeader;

    fileHeader.iUid = KMifFileHeaderUid;

    fileHeader.iVersion = KMifFileHeaderVersion;

    fileHeader.iOffset = sizeof(fileHeader);

    fileHeader.iLength = KMifFileHeaderLength;  // number of indexes

    // Icon offset element

    TMifIconOffset iconOffset;

    iconOffset.iIconOffset =

        sizeof(fileHeader) +

        sizeof(iconOffset) * KMifFileHeaderLength; // mif header + icon offset

    iconOffset.iIconLength =

        sizeof(TMifIconHeader) + iconDataSize; //icon header + icon data

    // Icon header

    TMifIconHeader iconHeader;

    iconHeader.iUid = KMifIconHeaderUid;

    iconHeader.iVersion = KMifIconHeaderVersion;

    iconHeader.iOffset = sizeof(iconHeader);  // dataOffset

    iconHeader.iLength = iconDataSize;  // dataLength

    iconHeader.iType = KMifIconHeaderType;  // svg

    iconHeader.iDepth = EColor16M;

    iconHeader.iAnimated = KMifIconHeaderAnimated;

    iconHeader.iMaskDepth = EColor16M;

    // Create MIFConverter class

    CMifConverter* mifConverter = CMifConverter::NewL(iRFs, aOutputFile);

    CleanupStack::PushL(mifConverter);

    // write mif file header

    mifConverter->WriteMifFileHeaderL(fileHeader);

    // insert 2 iconOffset elements: first for the image, the other for the mask

    mifConverter->WriteMifIconOffsetL(iconOffset);

    mifConverter->WriteMifIconOffsetL(iconOffset);

    mifConverter->WriteMifIconHeaderL(iconHeader);

    // write mif file body

    mifConverter->WriteMifBodyL(apIconBuf);

    // cleanup

    CleanupStack::PopAndDestroy(mifConverter);

    CleanupStack::PopAndDestroy(apIconBuf);

    return KErrNone;

}

void CIconConverter:: LogAllSupportedMimeTypes()

{

    // List the file extensions that can be decoded and their corresponding MIME types

    RFileExtensionMIMETypeArray mimeTypes;

    CImageDecoder::GetFileTypesL(mimeTypes);

    TInt nTypes = mimeTypes.Count();

    for (TInt nInd = 0; nInd < nTypes; nInd++)

    {

        const TDesC& extension = mimeTypes[nInd]->FileExtension();

        // Reserve one char for null terminator

        HBufC* extBuf = HBufC::NewLC(extension.Length() + 1);

        TPtr extPtr(extBuf->Des());

        extPtr.Append(extension);

        LOG1WSTR(EJavaInstaller, EInfo,

                 "Icon converter supports file extension %s",

                 (wchar_t *)(extPtr.PtrZ()));

        CleanupStack::Pop(extBuf);

        const TDesC8& mime = mimeTypes[nInd]->MIMEType();

        HBufC8* mimeBuf = HBufC8::NewLC(mime.Length() + 1);

        TPtr8 mimePtr(mimeBuf->Des());

        mimePtr.Append(mime);

        LOG1(

            EJavaInstaller,

            EInfo,

            "Icon converter supports MIME type %s",

            mimePtr.PtrZ());

        CleanupStack::Pop(mimeBuf);

    }

    mimeTypes.ResetAndDestroy();

}

} // namespace java