// Copyright (c) 2006-2009 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:

//

/**

 @file

 @internalComponent

*/

#ifndef CMTPDEVICEDP_H

#define CMTPDEVICEDP_H

#include <mtp/cmtpdataproviderplugin.h>

#include "mtpdebug.h"

#include "mmtpenumerationcallback.h"

#include "rmtpdevicedpsingletons.h"

#include "rmtpdpsingletons.h"

#include "mextndevplugincallback.h"

#include "mmtpdevdpextn.h"

#include "cmtpgetdevicepropdesc.h"

#include "cmtpdevicedatastore.h"

#include "cmtpdevdpextnmap.h"

#include <mtp/tmtptypeevent.h>

class CMTPDevDpExclusionMgr;

class CMTPFSEnumerator;

class CMTPStorageWatcher;

class MMTPRequestProcessor;

class CMtpExtnDevicePropPlugin;

class CMTPDeviceDataStore;

/** 

Implements the MTP device data provider plug-in.

@internalComponent

*/

class CMTPDeviceDataProvider : 

	public CMTPDataProviderPlugin,

	public MMTPEnumerationCallback , public MExtnDevPluginCallback

    {

private:

	enum TEnumerationState

		{

		EUndefined,

		EEnumeratingDeviceDataStore,

		EEnumeratingFolders,

		EEnumerationComplete,

		};

public:

    static TAny* NewL(TAny* aParams);

    ~CMTPDeviceDataProvider();

private: // From CMTPDataProviderPlugin

    void Cancel();

    void ProcessEventL(const TMTPTypeEvent& aEvent, MMTPConnection& aConnection);

    void ProcessNotificationL(TMTPNotification aNotification, const TAny* aParams);

    void ProcessRequestPhaseL(TMTPTransactionPhase aPhase, const TMTPTypeRequest& aRequest, MMTPConnection& aConnection);

    void StartObjectEnumerationL(TUint32 aStorageId, TBool aPersistentFullEnumeration);

    void StartStorageEnumerationL();

    void Supported(TMTPSupportCategory aCategory, RArray<TUint>& aArray) const;

private: // MMTPEnumerationCallback

	void NotifyEnumerationCompleteL(TUint32 aStorageId, TInt aError);

private:

    CMTPDeviceDataProvider(TAny* aParams);

    void ConstructL();

    TInt LocateRequestProcessorL(const TMTPTypeRequest& aRequest, MMTPConnection& aConnection);

    TInt LocateRequestProcessorL(const TMTPTypeEvent& aEvent, MMTPConnection& aConnection);    

    void SessionClosedL(const TMTPNotificationParamsSessionChange& aSession);

    void SessionOpenedL(const TMTPNotificationParamsSessionChange& aSession);

    TInt FindExtnPlugin(TUint aOpcode);

    void LoadExtnPluginsL();

    void AddFolderRecursiveL( const TMTPNotificationParamsFolderChange& aFolder );

    TUint32 AddEntryL( const TDesC& aPath, TUint32 aParentHandle, TUint32 aStorageId, CMTPObjectMetaData& objectInfo );

    TUint32 GetStorageIdL( const TDesC& aPath );

    void OnDeviceFolderChangedL( TMTPEventCode aEventCode, CMTPObjectMetaData& objectInfo );

   public:

    //from MExtnDevPluginCallback

    void OnDevicePropertyChangedL(TMTPDevicePropertyCode& aPropCode);

    /**

      * This method return reference MMTPDataProviderFramework

      */

    MMTPDataProviderFramework& DataProviderFramework ();

private: // Owned

    /**

    FLOGGER debug trace member variable.

    */

    __FLOG_DECLARATION_MEMBER_MUTABLE;

    /**

    The active request processors table. Multiple request processors may be 

    active in a multi-session MTP environment.

    */

    RPointerArray<MMTPRequestProcessor> iActiveProcessors;

    /**

    The device DP singletons.

    */

    RMTPDeviceDpSingletons              iDevDpSingletons;

    /**

    The dp utilities singleton.

    */

    RMTPDpSingletons					iDpSingletons;

    /**

    The device dp object enumeration state.

    */

    TEnumerationState					iEnumeratingState;

    /**

    The device dp folder enumerator.

    */

    CMTPFSEnumerator*					iEnumerator;

    /**

    The device dp exlusion manager. 

    */

    CMTPDevDpExclusionMgr*				iExclusionMgr;

    /**

    The list of storages to be enumerated.

    */	

    RArray<TUint32>                     iPendingEnumerations;

    /**

    The system storages watcher.

    */

    CMTPStorageWatcher*                 iStorageWatcher;

    /**

    The device Dp extension plugin map array.

    */   

    RPointerArray<CDevDpExtnPluginMap> iExtnPluginMapArray;//2113

    /**

    The event dataset.

    */     

    TMTPTypeEvent                   iEvent;

    //not owned by this class

    CMTPDeviceDataStore *iPtrDataStore;

    TInt								iActiveProcessor;

    TBool								iActiveProcessorRemoved;

    };

#endif // CMTPDEVICEDP_H