/*

* Copyright (c) 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 "Symbian Foundation License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.symbianfoundation.org/legal/sfl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Media plug-in for LAWMO

*

*/

#ifndef _MEDIAPLUGIN__

#define _MEDIAPLUGIN__

#include <e32base.h>	// For CActive, link against: euser.lib

#include <e32std.h>		// For RTimer, link against: euser.lib

#include <mdesession.h>

#include <mdequery.h>

#include <mdeobjectdef.h>

#include <mdeobjectquery.h>

#include <mdeconstants.h>

#include <mdeitem.h>

#include <f32file.h>

#include <flogger.h>

#include <lawmointerface.h>

#include <lawmocallbackinterface.h>

// An implementation of the CLAWMOPluginInterface definition

class CLAWMOMediaPlugin : public CLAWMOPluginInterface,

						  public MMdESessionObserver,

						  public MMdEQueryObserver

	{

public:

	// Standardised safe construction which leaves nothing the cleanup stack.

    static CLAWMOMediaPlugin* NewL(MLawmoPluginWipeObserver* aObserver);

	// Destructor	

	~CLAWMOMediaPlugin();

	void WipeL ();

	// Initiate and start a MdsQuery

	void StartMdsQueryL();

public: // from MMdESessionObserver

    void HandleSessionOpened( CMdESession& aSession, TInt aError );

    void HandleSessionError( CMdESession& aSession, TInt aError );

public: // from MMdEQueryObserver

    void HandleQueryNewResults(CMdEQuery& aQuery,

                                   TInt aFirstNewItemIndex,

                                   TInt aNewItemCount);

    void HandleQueryCompleted(CMdEQuery& aQuery, TInt aError);

private:

    enum TMdsQueryState

        {

        EUninitialized, // Uninitialized

        EInitialized, // Initalized

        EImage,

        EVideo,

        ESession,

        EError

        // Error condition

        };

private:

	// Construction

	CLAWMOMediaPlugin();

	/**

	 * second phase constructor

	 */

	void ConstructL(MLawmoPluginWipeObserver* aObserver);

private:

	TInt iState; // State of the active object

	CMdESession* iMdeSession; // session to MdE, created before trying to do the query

	CMdEObjectQuery* iQuery;

	RFs iRfs;

	MLawmoPluginWipeObserver* iObserver;

	};  

#endif // _MEDIAPLUGIN__