/*

* Copyright (c) 2002 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:  MsgAttachmentModel implementation

*

*/

// ========== INCLUDE FILES ================================

#include <eikenv.h>

#include <gulicon.h>

#include <apgicnfl.h>           // apamasked bitmaps

#include <coeutils.h>           // for ConeUtils::FileExists

#include <DocumentHandler.h>    // for KGameMimeType

#include <data_caging_path_literals.hrh>

#include <msvids.h>             // KMsvNullIndexEntryId

#include <AknUtils.h>

#include <AknsUtils.h>          // skinned icons

#include <AknsConstants.h>      // skinned icon ids

#include <aknlayout.cdl.h> // LAF

#include <msgeditor.mbg>

#include <msgeditor_ah.mbg>

#include "MsgEditorCommon.h"

#include "MsgAttachmentModel.h"

#include "MsgAttachmentModelObserver.h"

#include "MsgAttachmentInfo.h"

#include "MsgAttachmentUtils.h"

#include "MsgEditorLogging.h"

// ========== EXTERNAL DATA STRUCTURES =====================

// ========== EXTERNAL FUNCTION PROTOTYPES =================

// ========== CONSTANTS ====================================

const TUint KAttachArrayGranularity = 16;

const TInt32 KMaxGameEngineDataID = 1000;

const TInt   KGameEngineUID = 0x101F5EDA;

/**

* UID of the messaging centre to show correct icon for email

* attachments

*/

const TInt KMceUID = 0x100058C5;

_LIT8( KEMailMessageMimeType, "message/rfc822" );

_LIT8( KTextDataType, "text/plain" );

const TInt KNotepadUID3 = 0x1000599d;

// ========== MACROS =======================================

// ========== LOCAL CONSTANTS AND MACROS ===================

// ========== MODULE DATA STRUCTURES =======================

// ========== LOCAL FUNCTION PROTOTYPES ====================

// ========== LOCAL FUNCTIONS ==============================

// ========== MEMBER FUNCTIONS =============================

// ---------------------------------------------------------

// CMsgAttachmentModel::NewL

//

// Factory method.

// ---------------------------------------------------------

//

EXPORT_C CMsgAttachmentModel* CMsgAttachmentModel::NewL( TBool aReadOnly )

    {

    CMsgAttachmentModel* self = new ( ELeave ) CMsgAttachmentModel( aReadOnly );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

// ---------------------------------------------------------

// CMsgAttachmentModel::~CMsgAttachmentModel

//

// Destructor.

// ---------------------------------------------------------

//

EXPORT_C CMsgAttachmentModel::~CMsgAttachmentModel()

    {

    delete iDRMFWDLockIcon;

    delete iDRMSDIconRightsValid;

    delete iDRMFWDLockIconNoRights;

    delete iDRMSDIconNoRights;

    if ( iAttachInfoArray )

        {

        iAttachInfoArray->ResetAndDestroy();

        }

    delete iAttachInfoArray;

    iAppList.Close();

    }

// ---------------------------------------------------------

// CMsgAttachmentModel::SetObserver

//

// Sets attachment model observer.

// ---------------------------------------------------------

//

EXPORT_C void CMsgAttachmentModel::SetObserver(

    MMsgAttachmentModelObserver* aObserver )

    {

    iAttachmentModelObserver = aObserver;

    }

// ---------------------------------------------------------

// CMsgAttachmentModel::NumberOfItems

//

// Returns number of attachments.

// ---------------------------------------------------------

//

EXPORT_C TInt CMsgAttachmentModel::NumberOfItems() const

    {

    return iAttachInfoArray->Count();

    }

// ---------------------------------------------------------

// CMsgAttachmentModel::AttachmentInfoAt

//

// Returns reference to attachment info at given index.

// ---------------------------------------------------------

//

EXPORT_C CMsgAttachmentInfo& CMsgAttachmentModel::AttachmentInfoAt(

    TInt aIndex ) const

    {

    return *iAttachInfoArray->At( aIndex );

    }

// ---------------------------------------------------------

// CMsgAttachmentModel::BitmapForFileL

//

// Returns pointer to bitmap of the application that handles given file.

// If application not found returns default bitmap and sets supported flag

// of the aAttaInfo to EFalse.

// ---------------------------------------------------------

//

EXPORT_C CGulIcon* CMsgAttachmentModel::BitmapForFileL(

    CMsgAttachmentInfo& aAttaInfo )

    {

    MEBLOGGER_ENTERFN( "BitmapForFileL" );

    TUid appUid( KNullUid );

    // Get bitmap based on datatype:

    TInt err = iAppList.AppForDataType( aAttaInfo.DataType(), appUid );

    /*

    // Get bitmap based on recognition:

    // How to handle this with file handles?!

    TDataType dataType;

    TInt err = iAppList.AppForDocument( aAttaInfo.FileName(), appUid, dataType );

    TInt err = iAppList.AppForDocumentAndService(

    	const TDesC& aFileName,

    	RFs& aFSession,

    	RFile& aFile,

    	TUid aServiceUid,

    	TUid& aAppUid,

    	TDataType& aDataType);

    if ( dataType.Des8().FindF( KGameMimeType ) != KErrNotFound )

        {

        appUid = AppUidFromGameFileL( dataType, aAttaInfo.FileName() );

        }

    */

    if ( aAttaInfo.DataType().Des8().Compare( KEMailMessageMimeType ) == 0 )

        {

        appUid.iUid = KMceUID;

        err = KErrNone;

        }

    else if ( aAttaInfo.DataType().Des8().Compare( KTextDataType ) == 0 )

        {

        appUid.iUid = KNotepadUID3;

        err = KErrNone;

        }

    TBool supported( ( err == KErrNone ) && ( appUid.iUid != 0 ) );

    // Case Imelody: content type text/x-imelody. AppForDataType() returns 'no-app'.

    // But Imelody should be opened into text editor.

    // AppForDocument resolves correct application icon.

    // Content type length check removed from if()

    if ( !supported )

        {

        TDataType dataType;

        TMsvAttachmentId attachmentId = aAttaInfo.AttachmentId();

        // OPEN: is there need to handle attachmentId == 0 differently?

        RFile attachmentFile;

        TRAP( err, attachmentFile = iAttachmentModelObserver->GetAttachmentFileL( attachmentId ) );

        if ( err == KErrNone && attachmentFile.SubSessionHandle() != KNullHandle )

            {

            err = iAppList.AppForDocument( attachmentFile, appUid, dataType );

            attachmentFile.Close();

            }

        supported = ( ( err == KErrNone ) && ( appUid.iUid != 0 ) );

        }

    aAttaInfo.SetSupported( supported );

    CGulIcon* addIcon = NULL;

    CGulIcon* icon = NULL;

    if ( aAttaInfo.DRMDataType() )

        {

        MAknsSkinInstance* skins = AknsUtils::SkinInstance();

        switch ( aAttaInfo.DRMDataType() )

            {

            case CMsgAttachmentInfo::ECombinedDeliveryInvalidRights:

                {

                if ( !iDRMFWDLockIconNoRights )

                    {

                    iDRMFWDLockIconNoRights = AknsUtils::CreateGulIconL( 

                                        skins, 

                                        KAknsIIDQgnPropDrmExpForbidSuper, 

                                        KMsgEditorMbm, 

                                        EMbmMsgeditorQgn_prop_drm_exp_forbid_super, 

                                        EMbmMsgeditorQgn_prop_drm_exp_forbid_super_mask );  

                    AknIconUtils::SetSize( iDRMFWDLockIconNoRights->Bitmap(), iAddIconSize );

                    }                

                addIcon = iDRMFWDLockIconNoRights;

                }

                break;

            case CMsgAttachmentInfo::ESeparateDeliveryInvalidRights:

                {

                if ( !iDRMSDIconNoRights )

                    {

                    iDRMSDIconNoRights = AknsUtils::CreateGulIconL( 

                                        skins, 

                                        KAknsIIDQgnPropDrmRightsExpSuper, 

                                        KMsgEditorMbm, 

                                        EMbmMsgeditorQgn_prop_drm_rights_exp_super, 

                                        EMbmMsgeditorQgn_prop_drm_rights_exp_super_mask );  

                    AknIconUtils::SetSize( iDRMSDIconNoRights->Bitmap(), iAddIconSize );

                    }                

                addIcon = iDRMSDIconNoRights;

                }

                break;

            case CMsgAttachmentInfo::EForwardLockedOrCombinedDelivery:

                {

                // OPEN: What should the addIcon be if file is not supported?

                // Now it will be "iDRMFWDLockIcon"

                if ( !iDRMFWDLockIcon )

                    {

                    iDRMFWDLockIcon = AknsUtils::CreateGulIconL( 

                                        skins, 

                                        KAknsIIDQgnPropDrmSendForbidSuper, 

                                        KMsgEditorMbm, 

                                        EMbmMsgeditorQgn_prop_drm_send_forbid_super, 

                                        EMbmMsgeditorQgn_prop_drm_send_forbid_super_mask );  

                    AknIconUtils::SetSize( iDRMFWDLockIcon->Bitmap(), iAddIconSize );

                    }

                addIcon = iDRMFWDLockIcon;

                }

                break;

            case CMsgAttachmentInfo::ESeparateDeliveryValidRights:

                {

                if ( !iDRMSDIconRightsValid )

                    {

                    iDRMSDIconRightsValid = AknsUtils::CreateGulIconL( 

                                        skins, 

                                        KAknsIIDQgnPropDrmRightsValidSuper, 

                                        KMsgEditorMbm, 

                                        EMbmMsgeditorQgn_prop_drm_rights_valid_super, 

                                        EMbmMsgeditorQgn_prop_drm_rights_valid_super );  

                    AknIconUtils::SetSize( iDRMSDIconRightsValid->Bitmap(), iAddIconSize );

                    }

                addIcon = iDRMSDIconRightsValid;

                }

                break;

            default:

                break;

            }

        }

    if ( !icon )

        {

        icon = supported

            ? BitmapForAppL( appUid )

            : LoadDefaultBitmapL( EFalse );

        }

    CleanupStack::PushL( icon );    

    AknIconUtils::SetSize( icon->Bitmap(), iIconSize );

    CGulIcon* finalIcon = NULL;

    if ( addIcon )

        {

        // Create two new bitmaps (app icon and mask) that have document

        // icon drawn on top.

        CFbsBitmap* newMask = MsgAttachmentUtils::CombineIconsL(

            icon->Mask(),

            addIcon->Mask(),

            addIcon->Mask() );

        CleanupStack::PushL( newMask );

        CFbsBitmap* newBitmap = MsgAttachmentUtils::CombineIconsL(

            icon->Bitmap(),

            addIcon->Bitmap(),

            addIcon->Mask() );

        CleanupStack::PushL( newBitmap );

        finalIcon = CGulIcon::NewL( newBitmap, newMask );

        CleanupStack::Pop( 2 ); //newBitmap, mask

        CleanupStack::PopAndDestroy(); //icon

        CleanupStack::PushL( finalIcon );

        }

    else

        {

        finalIcon = icon;

        }

    // fade icon if not fetched.

    if ( !aAttaInfo.IsFetched() )

        {

        // Create copy of the original application icon bitmap & mask

        // so that original data is not modified.

        CFbsBitmap* newMask = CopyBitmapL( finalIcon->Mask() );

        CleanupStack::PushL( newMask );

        CFbsBitmap* newBitmap = CopyBitmapL( finalIcon->Bitmap() );

        CleanupStack::PushL( newBitmap );

        CGulIcon* tempIcon = CGulIcon::NewL( newBitmap, newMask );

        CleanupStack::Pop( 2, newMask );

        CleanupStack::PopAndDestroy( addIcon ? finalIcon : icon );

        finalIcon = tempIcon;

        CleanupStack::PushL( finalIcon );

        FadeBitmapL( finalIcon->Bitmap() );

        }

    CleanupStack::Pop( finalIcon );

    MEBLOGGER_LEAVEFN( "BitmapForFileL" );

    return finalIcon;

    }

// ---------------------------------------------------------

// CMsgAttachmentModel::FadeBitmapL

// ---------------------------------------------------------

//

void CMsgAttachmentModel::FadeBitmapL( CFbsBitmap* aBitmap )

    {

    TRegionFix<1> area( aBitmap->SizeInPixels() );

    CFbsBitmapDevice* bmpDevice = CFbsBitmapDevice::NewL( aBitmap );

    CFbsBitGc* bitGc = NULL;

    bmpDevice->CreateContext( bitGc );

    if ( bitGc )

        {

        // TODO: Magic numbers here to stay?

        TUint8 blackMap = 128;

        TUint8 whiteMap = 255;

        bitGc->SetFadingParameters( blackMap, whiteMap );

        bitGc->FadeArea( &area );

        delete bitGc;

        }

    delete bmpDevice;

    }

// ---------------------------------------------------------

// CMsgAttachmentModel::CopyBitmapL

// ---------------------------------------------------------

//

CFbsBitmap* CMsgAttachmentModel::CopyBitmapL( const CFbsBitmap* aBitmap )

    {

    if ( !aBitmap )

        {

        User::Leave( KErrArgument );

        }

    CFbsBitmap* newBitmap = new( ELeave ) CFbsBitmap();

    CleanupStack::PushL( newBitmap );

    User::LeaveIfError( newBitmap->Create( aBitmap->SizeInPixels(), aBitmap->DisplayMode() ) );

    CFbsBitmapDevice* bitmapDevice = CFbsBitmapDevice::NewL( newBitmap );

    CleanupStack::Pop( newBitmap );

    CleanupStack::PushL( bitmapDevice );

    CBitmapContext* bitmapContext = NULL;

    User::LeaveIfError( bitmapDevice->CreateBitmapContext( bitmapContext ) );

    CleanupStack::PushL( bitmapContext );

    bitmapContext->BitBlt( TPoint(), aBitmap );

    CleanupStack::PopAndDestroy( 2, bitmapDevice );    

    return newBitmap;

    }

// ---------------------------------------------------------

// CMsgAttachmentModel::AddAttachmentL

//

// Adds attachment to the internal array. Notifies attachment model

// observer with EMsgAttachmentAdded parameter.

// ---------------------------------------------------------

//

EXPORT_C CMsgAttachmentInfo* CMsgAttachmentModel::AddAttachmentL(

    const TDesC& aFullName,

    TInt aSize,

    TMsvAttachmentId aAttachmentEntryId,

    TBool aFetched,

    TInt aIndex /*= -1*/ )

    {

    TDataType dataType;

    if ( ConeUtils::FileExists( aFullName ) )

        {

        TUid appUid( KNullUid );

        iAppList.AppForDocument( aFullName, appUid, dataType );

        }

    return AddAttachmentL(

        aFullName, aSize, aAttachmentEntryId, aFetched, dataType, aIndex );

    }

// ---------------------------------------------------------

// CMsgAttachmentModel::AddAttachmentL

//

// Adds attachment to the internal array. Notifies attachment model

// observer with EMsgAttachmentAdded parameter.

// ---------------------------------------------------------

//

EXPORT_C CMsgAttachmentInfo* CMsgAttachmentModel::AddAttachmentL(

    const TDesC& aFullName,

    TInt aSize,

    TMsvAttachmentId aAttachmentEntryId,

    TBool aFetched,

    const TDataType& aDataType,

    TInt aIndex )

    {

    return AddAttachmentL( aFullName, 

                           aSize,

                           aAttachmentEntryId,

                           aFetched,

                           aDataType,

                           CMsgAttachmentInfo::ENoLimitations,

                           aIndex);

    }

// ---------------------------------------------------------

// CMsgAttachmentModel::AddAttachmentL

//

// Adds attachment to the internal array. Notifies attachment model

// observer with EMsgAttachmentAdded parameter.

// ---------------------------------------------------------

//

EXPORT_C CMsgAttachmentInfo* CMsgAttachmentModel::AddAttachmentL(

    const TDesC& aFullName,

    TInt aSize,

    TMsvAttachmentId aAttachmentEntryId,

    TBool aFetched,

    const TDataType& aDataType,

    CMsgAttachmentInfo::TDRMDataType aDRMDataType,

    TInt aIndex /*= -1*/ )

    {

    CMsgAttachmentInfo* info = CreateNewInfoL( aFullName, 

                                               aSize, 

                                               aFetched, 

                                               ETrue, 

                                               aAttachmentEntryId, 

                                               aDataType, 

                                               aDRMDataType );

    CleanupStack::PushL( info );

    info->SetAttachmentId( aAttachmentEntryId );

    if ( aIndex == -1 )

        {

        iAttachInfoArray->AppendL( info );

        }

    else

        {

        iAttachInfoArray->InsertL( aIndex, info );

        }

    iModified = ETrue;

    if ( ( iAttachmentModelObserver != NULL ) && ( NumberOfItems() > 0 ) )

        {

        iAttachmentModelObserver->NotifyChanges(

            MMsgAttachmentModelObserver::EMsgAttachmentAdded, info );

        }

    CleanupStack::Pop(); // info

    return info;

    }

// ---------------------------------------------------------

// CMsgAttachmentModel::DeleteAttachment

//

// Deletes attachment from internal array. Notifies attachment model

// observer with EMsgAttachmentRemoved parameter.

// ---------------------------------------------------------

//

EXPORT_C void CMsgAttachmentModel::DeleteAttachment( TInt aIndex )