/*

* Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

*

*/

/**

 @file

 @internalComponent

 @released

*/

#ifndef __CAF_EMBEDDEDCONTENTITERATORBASE_H__

#define __CAF_EMBEDDEDCONTENTITERATORBASE_H__

#include <e32base.h>

#include "streamableptrarray.h"

#include <caf/virtualpathptr.h>

namespace ContentAccess 

	{

	class CContent;

	class CEmbeddedObject;

	/** Internal class for recursively searching through a particular content file

	Only ever created by CContentIteratorBase, CEmbeddedContetnIterator or itself

	@internalComponent

	@released

	*/

	NONSHARABLE_CLASS(CEmbeddedContentIteratorBase) : public CBase

		{

	public:

		virtual ~CEmbeddedContentIteratorBase();

		CEmbeddedObject& EmbeddedObject();

		TInt Next();

	private:

		// Only ever created by one of these two or itself

		friend class CEmbeddedContentIterator;

		friend class CContentIteratorBase;

		/** Create a content iterator for a particular path in the file system

		@param aContent Already set up to look at the container we are interested in

		@param aRecursive Whether to explore sub-containers under the given path

		@param aMimeType The mime type to search for. Finds content objects of any mime types if this parameter is omitted

		@leave KErrNotFound If no suitable content objects were found inside the given path

		*/

		static CEmbeddedContentIteratorBase* NewL(CContent& aContent, TBool aRecursive, const TDesC8& aMimeType);

		CEmbeddedContentIteratorBase(CContent& aContent, TBool aRecursive, const TDesC8& aMimeType );

		void ConstructL();

		// Construction parameters

		CContent& iContent;

		TBool iRecursive;

		const TDesC8& iMimeType;

		// Index into the list of embedded content objects

		TInt iContentIndex;

		// Index into the list of embedded container objects

		TInt iContainerIndex;

		// Objects inside the current container within the specificed file

		RStreamablePtrArray<CEmbeddedObject> iEmbeddedContentObjects;

		// Container Objects inside the current container within the specified file

		RStreamablePtrArray<CEmbeddedObject> iEmbeddedContainerObjects;

		// Used for looking inside sub-containers

		CEmbeddedContentIteratorBase* iSubIterator;

		};

	}

#endif