/*

* Copyright (c) 2010 Ixonos Plc.

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the "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:

* Ixonos Plc

*

* Description:  

*

*/

#include <e32std.h>

#include <eikenv.h>

#include "PluginLoader.h"

#include "ImageEditorError.h"

#include "../../ImageEditor/inc/plugintypedef.h"

//=============================================================================

CPluginLoader * CPluginLoader::NewL (

	const TDesC	&	aFileName,

	const TUid *	aUID2,

	const TUid *	aUID3

	)

{

	CPluginLoader * self = CPluginLoader::NewLC (aFileName, aUID2, aUID3);

	CleanupStack::Pop (); // self

	return self;

}

//=============================================================================

CPluginLoader * CPluginLoader::NewLC (

	const TDesC	&	aFileName,

	const TUid *	aUID2,

	const TUid *	aUID3

	)

{

	CPluginLoader * self = new (ELeave) CPluginLoader;

	CleanupStack::PushL (self);

	self->ConstructL (aFileName, aUID2, aUID3);

	return self;

}

//=============================================================================

CPluginLoader::~CPluginLoader ()

{

	delete iPlugin;

	iLibrary.Close();

}

//=============================================================================

CPluginLoader::CPluginLoader ()

{

}

//=============================================================================

void CPluginLoader::ConstructL (

	const TDesC	&	aFileName,

	const TUid *	aUID2,

	const TUid *	aUID3

	)

{

    LOGFMT(KImageEditorLogFile, "CPluginLoader: Loading plugin %S", &aFileName);

    //	Dynamically load DLL

	TInt err = iLibrary.Load (aFileName);

    if (err != KErrNone)

        {

        LOGFMT(KImageEditorLogFile,"CPluginLoader: Failed to load file: %S", &aFileName);

        User::Leave (KSIEEInternal);

        }

	//	Check UID2

	if (aUID2)

	{

		if ( iLibrary.Type()[1] != *aUID2 )

		{

            LOG(KImageEditorLogFile, "CPluginLoader: Invalid plugin UID");

			User::Leave (KSIEEInternal);

		}

	}

    //	Check UID3

	if (aUID3)

	{

        if ( iLibrary.Type()[2] != *aUID3 )

		{

            LOG(KImageEditorLogFile, "CPluginLoader: Invalid plugin UID");

			User::Leave (KSIEEInternal);

		}

	}

    //	Create a plugin by calling ordinal 1 factory method

    TLibraryFunction entrypoint = iLibrary.Lookup (1);

    iPlugin = (CPluginType *) entrypoint();

}

//=============================================================================

CPluginType * CPluginLoader::GetPlugin () const

{

	return iPlugin;

}

//=============================================================================

const RLibrary & CPluginLoader::GetPluginDll () const

{

	return iLibrary;

}

// End of File