/*

* 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:    set the required attribute to the medialist

*

*/

#ifndef _GLXATTRIBUTEREQUIREMENT_H__

#define _GLXATTRIBUTEREQUIREMENT_H__

#include <glxattributecontext.h>   // Fetch context to retrieve thumbnails

#include <glxthumbnailcontext.h>   // Fetch context to retrieve thumbnails

#include <glxmedialistiterator.h>  // for Fetch contexts n the list in a non-sequential order

#include <mglxmedialist.h>         // Interface for reading lists of media items

/**

 * CGlxAttributeRequirements 

 * This class will set the required attribute to the medialist

 */

class CGlxAttributeRequirements: public CBase

    {

private:

     void ConstructL(); 

public:

    /**

     * NewL 

     * @param aMediaList the list to which attributes will be set

     */

    IMPORT_C static  CGlxAttributeRequirements* NewL( MGlxMediaList& aMediaList ) ;

	/**

     * NewLC 

     * @param aMediaList the list to which attributes will be set

     */

	static  CGlxAttributeRequirements*NewLC( MGlxMediaList& aMediaList ) ;

	/**

     * Default constructor 

     * @param aMediaList the list to which attributes will be set

     */

	CGlxAttributeRequirements( MGlxMediaList& aMediaList );

	/**

     * Destructor 

     */

	~CGlxAttributeRequirements();

	/**

     * AddAttributeL 

     * @param aAttribute 

     */

	void AddAttributeL( const TMPXAttribute& aAttribute );

	/**

     * AddThumbnailL 

     * @todo

     */

	void AddThumbnailL( const TSize& aSize );

    /**

     * SetIteratorIndex 

     * @todo

     */

	void SetIteratorIndex( TInt aIndex );

private:

	// medialist to which attribute is set

	MGlxMediaList& iMediaList;

    TGlxFromFocusOutwardIterator iFromFocusOutwardIterator;

    TGlxFromManualIndexBlockyIterator iBlockyIterator;

    RPointerArray<CGlxDefaultAttributeContext> iArributeContext;

    RPointerArray<CGlxThumbnailContext> iThumbnailContext;

    TGlxFromFocusOutwardIterator iFsFromFocusOutwardIterator;

	//Context variable to keep track of Fullscreenthumbnail requests

	//When the context is already created, upon orientation change, only the Default spec 

	//will be changed, rather than adding a new context

	//This is done to prioritize fetching of current orientation thumbnail

	CGlxThumbnailContext* iFsThumbnailContext;

    };

#endif //_GLXATTRIBUTEREQUIREMENT_H__