/*

* 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:    Title fetcher 

*

*/

#ifndef GLXTITLEFETCHER_H

#define GLXTITLEFETCHER_H

#include <e32base.h>

#include <coedef.h>

#include <w32std.h>

#include <mglxmedialistobserver.h>

#include "mglxtitlefetcherobserver.h"

class CMPXCollectionPath;

class MGlxMediaList;                   

class CGlxDefaultAttributeContext;

class CGlxTitleFetcher : public CBase, public MGlxMediaListObserver

    {

public:

    /**

     * Constructs an instance of CGlxTitleFetcher and initiates obtaining

     * a title 

     *

     * @param aObserver Observer of this list 

     * @param aPath The current path by which to obtain the title 

     */

    static CGlxTitleFetcher*  NewL(MGlxTitleFetcherObserver& aObserver,

                                    CMPXCollectionPath* aPath);

	IMPORT_C virtual ~CGlxTitleFetcher();

    // From MGlxMediaListObserver                    

	virtual void HandleItemAddedL(TInt aStartIndex, TInt aEndIndex,

		MGlxMediaList* aList);

    /**

     * Notification that media object is now available for an item 

     *

     * @param Index of the item 

     */

	virtual void HandleMediaL(TInt /*aListIndex*/, MGlxMediaList* /*aList*/) {};

    /**

     * Notification that media item was removed from the list

     *

     * @param aStartIndex First item that was removed 

     * @param aEndIndex Last item that was removed

     */

	virtual void HandleItemRemovedL(TInt /*aStartIndex*/, TInt /*aEndIndex*/,

		MGlxMediaList* /*aList*/) {};

    /**

     * Notification that media item was changed

     *

     * @param aItemIndexes Indexes of items that were changed

     */

	virtual void HandleItemModifiedL(const RArray<TInt>& /*aItemIndexes*/, 

		MGlxMediaList* /*aList*/) {};

    /**

     * Notification that an attribute is available

     *

     * @param aItemIndex Index of the for which the thumbnail is available

     * @param aAttributes Array of attributes that have become available

     * @param aList List that this callback relates to 

     */

	virtual void HandleAttributesAvailableL(TInt aItemIndex, 	

		const RArray<TMPXAttribute>& aAttributes, MGlxMediaList* aList);	

    /**

     * Notification that focus has moved

     *

     * @param aType the direction of the focus change

     * @param aNewIndex the new index after the focus change

     * @param aOldIndex the old index before the focus change

     * @param aList List that this callback relates to

     */

	virtual void HandleFocusChangedL(NGlxListDefs::TFocusChangeType /*aType*/, 

	    TInt /*aNewIndex*/, TInt /*aOldIndex*/, MGlxMediaList* /*aList*/) {};

	/**

	 * Notification that an item has been selected/deselected

	 *

	 * @param aIndex Index of the item that has been selected/deselected

	 * @param aSelected Boolean to indicate selection/deselection

	 * @param aList List that the selection relates to

	 */

	virtual void HandleItemSelectedL(TInt /*aIndex*/, TBool /*aSelected*/, 

	              MGlxMediaList* /*aList*/) {};

	/**

	 * Notification from the collection.  E.g. Items added/modified/deleted and progress notifications

	 *

	 * @param aMessage Message notification from the collection

	 * @param aList List that the notification relates to

	 */

	virtual void HandleMessageL(const CMPXMessage& /*aMessage*/, 

	                            MGlxMediaList* /*aList*/) {};

private:

    CGlxTitleFetcher(MGlxTitleFetcherObserver& aObserver,

                     CMPXCollectionPath* aPath);

    void ConstructL();

private:

    MGlxTitleFetcherObserver& iObserver;

    CMPXCollectionPath* iPath;

    TMPXItemId iPathId;

    MGlxMediaList*  iBackMediaList; 

    CGlxDefaultAttributeContext* iContext;                  

    };

#endif // GLXTITLEFETCHER_H