/*

 * Copyright (c) 2006 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:

 *

 */

#include <e32property.h>

#include <ecom/ecom.h>

#include <mmf/common/mmfcontrollerpluginresolver.h>

#include <contentharvesterplugin.h> // harvesting plugin

#include "charvesterpluginvalidator.h"

#include "cblacklisthandler.h"

const TUint32 KInProgressPropertyKey =

    {

    0x1028000E

    };

const TUint32 KHarvesterUid =

    {

    0x10282E5A

    };

const TInt KADatFactorySettingsServerPluginUid(0x102830EF);

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

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

//

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

//

EXPORT_C CHarvesterPluginValidator* CHarvesterPluginValidator::NewL(

        TUid aUid, TAny *aParameter)

    {

    CHarvesterPluginValidator* self = CHarvesterPluginValidator::NewLC(aUid,

            aParameter);

    CleanupStack::Pop(self);

    return self;

    }

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

//

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

//

EXPORT_C CHarvesterPluginValidator* CHarvesterPluginValidator::NewLC(

        TUid aUid, TAny *aParameter)

    {

    CHarvesterPluginValidator* self = new (ELeave) CHarvesterPluginValidator(

            aUid, aParameter);

    CleanupStack::PushL(self);

    self->ConstructL();

    return self;

    }

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

// destructor

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

CHarvesterPluginValidator::~CHarvesterPluginValidator()

    {

    iInProgressProperty.Close();

    delete iBlacklist;

    delete iUpdateIdle;

    }

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

//

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

//

CHarvesterPluginValidator::CHarvesterPluginValidator(TUid aUid,

        TAny* aParameter) :

    CPluginValidator(aUid, aParameter)

    {

    }

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

//

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

//

void CHarvesterPluginValidator::ConstructL()

    {

    iBlacklist = CBlacklistHandler::NewL();

    iUpdateIdle = CIdle::NewL( CActive::EPriorityIdle );

    iUpdateIdle->Start( TCallBack( UpdateCallback, this ) );

    CPluginValidator::ConstructL();

    }

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

//

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

//

void CHarvesterPluginValidator::ManagePluginsL()

    {

    TInt errorCode = iInProgressProperty.Define(TUid::Uid(KHarvesterUid),

            KInProgressPropertyKey, RProperty::EInt);

    if (KErrAlreadyExists == errorCode)

        {

        TInt value(-1);

        iInProgressProperty.Get(TUid::Uid(KHarvesterUid),

                KInProgressPropertyKey, value);

        if (value == 1)

            {

            // property value == inprogress

            // there was a panic in the previous startup

            // so we make unofficial blacklist official

            iBlacklist->CopyBlacklistL(EFalse);

            }

        }

    else

        {

        User::LeaveIfError(errorCode);

        }

    // copy blacklisted plugins to unoffical blacklist at startup

    iBlacklist->CopyBlacklistL(ETrue);

    // set property value to 1 (which means "in progress")

    iInProgressProperty.Set(TUid::Uid(KHarvesterUid), KInProgressPropertyKey,

            1);

    CPluginValidator::ManagePluginsL();

    // set property value to 0 (which means "finished")

    iInProgressProperty.Set( TUid::Uid( KHarvesterUid ),

        KInProgressPropertyKey, 0 );

    }

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

//

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

//

void CHarvesterPluginValidator::LoadPluginL(TPluginInfo& aPluginInfo)

    {

    if (!iBlacklist->IsPresentL(aPluginInfo.iImplementationUid))

        {

        //first we append UID to the blacklist

        iBlacklist->AppendL(aPluginInfo.iImplementationUid);

        TAny* plug(NULL);

        TInt err(KErrNone);

            TRAP( err, plug = REComSession::CreateImplementationL(

                            aPluginInfo.iImplementationUid,

                            aPluginInfo.iDtor_ID_Key, iParameter ) );

        if (err == KErrNone && plug)

            {

                TRAP_IGNORE(

                        CleanupStack::PushL( plug );

                        aPluginInfo.iPlugin = plug;

                        iPluginArray.AppendL( aPluginInfo );

                        CleanupStack::Pop( plug );

                );

            }

        //no panic during load so we can remove UID from blacklist

        iBlacklist->RemoveL(aPluginInfo.iImplementationUid);

        }

    }

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

//

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

//

void CHarvesterPluginValidator::UpdatePluginsL()

    {

    // set property value to 1 (which means "in progress")

    iInProgressProperty.Set(TUid::Uid(KHarvesterUid), KInProgressPropertyKey, 1);

    CContentHarvesterPlugin* plugin = NULL;

    CContentHarvesterPlugin* fsplugin =

            static_cast<CContentHarvesterPlugin*> (GetImplementation(

                    TUid::Uid(KADatFactorySettingsServerPluginUid)));

	if (fsplugin)

        {

        iBlacklist->AppendL(TUid::Uid(KADatFactorySettingsServerPluginUid));

            TRAP_IGNORE( fsplugin->UpdateL() );

        iBlacklist->RemoveL(TUid::Uid(KADatFactorySettingsServerPluginUid));

        }

    for (TInt i = 0; i < iPluginArray.Count(); i++)

        {

        plugin

                = static_cast<CContentHarvesterPlugin*> (iPluginArray[i].iPlugin);

        if (plugin != fsplugin)

            {

            //first we append UID to the blacklist

            iBlacklist->AppendL(iPluginArray[i].iImplementationUid);

                TRAP_IGNORE( plugin->UpdateL() );

            //no panic during update so we can remove UID from blacklist

            iBlacklist->RemoveL(iPluginArray[i].iImplementationUid);

            }

        }

    // set property value to 0 (which means "finished")

    iInProgressProperty.Set(TUid::Uid(KHarvesterUid), KInProgressPropertyKey,

            0);

    }

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

//

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

//  

TInt CHarvesterPluginValidator::UpdateCallback( TAny* aValidator )

    {

    if ( aValidator )

        {

        TRAP_IGNORE( static_cast<CHarvesterPluginValidator*>(aValidator)->

                UpdatePluginsL( ));

        }

    return KErrNone;

    }