/*

* Copyright (c) 2007 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:  

*

*/

#ifndef C_WRTCONTENTHARVESTER_H

#define C_WRTCONTENTHARVESTER_H 

// INCLUDES

#include <apgcli.h> // RApaLsSession 

#include <contentharvesterplugin.h>

#include <widgetappdefs.rh>

#include "wrtharvesterregistryaccess.h"

// FORWARD DECLARATIONS

class CWrtHarvesterPSNotifier;

class CWrtHarvesterPublisherObserver;

class MLiwInterface;

class CLiwGenericParamList;

class CWrtInfo;

// CONSTANTS

enum TWidgetState

    {

    EActivatedState = 0,

    EResumeState

    };

class TWrtState

    {

    public:

        /**

        * Constructor

        */

        inline TWrtState(TUid aUid, TWidgetState aState)

            {

            iUid = aUid;

            iState = aState;

            }

    public:

        TUid            iUid;

        TWidgetState    iState;

    };

// CLASS DECLARATION

/**

 */

class CWrtHarvester: public CContentHarvesterPlugin

	{

	struct SWidgetOperation

	    {

	    TWidgetOperations iOperation;

	    TUid iUid;

	    };

	public: // Constructors and destructor

		/**

		 * Two-phased constructor.

		 */

		static CWrtHarvester* NewL( MLiwInterface* aCPSInterface );

		/**

		 * Destructor.

		 */

		virtual ~CWrtHarvester();

        // from base class 

		/**

    	* 

    	*/

		void UpdateL();

		/**

    	* 

    	*/

		void TryLaunchNextOperationL();

        /**

		* @param aContentId

		* @param aTrigger

		*/

		void HandlePublisherNotificationL( const TDesC& aContentId, const TDesC8& aTrigger );

        /**

		*Clears the Event Queue 

		*/

		void ClearAllOperations();

		/**

		* Queues widget operation

		* @param aOperation Operation to be queued

    	* @param aUid Uid of the widget

    	*/

		void QueueOperationL(  TWidgetOperations aOperation, TUid aUid );	

	private:

    	/**

    	* Perform the second phase construction 

    	*/		

		void ConstructL();

        /** 

		* Default constructor.

		* @param aCPSInterface

		*/

		CWrtHarvester( MLiwInterface* aCPSInterface );

		/**

    	* 

    	*/

		void UpdatePublishersL();

		/**

        * 

        */

		void RemoveObsoletePublishersL();

		/**

        * 

        */

		void RegisteredPublishersL( RPointerArray<HBufC>& publishers );

		/**

		* 

    	* @param aWrtInfo

    	* @return TInt

    	*/

		TInt RegisterPublisherL( CWrtInfo& aWrtInfo );

		/**

    	* 

    	* @param aBundleId

    	*/

		void RemovePublisherAndObserverL( const TDesC& aBundleId );

		/**

		* 

		* @param aBundleId

		*/

		void RemoveObserver(const TDesC& aBundleId);

		/**

    	* 

    	* @param aWrtInfo

    	*/

		void RequestForNotificationL( CWrtInfo& aWrtInfo );

		/**

        * 

        */

		TUid WidgetUid( TPtrC aBundleId );

		/**

    	* 

    	* @param aInParamList

    	* @return TInt

    	*/

		TInt ExtractItemId( const CLiwGenericParamList& aInParamList );

		/**

		 * 

		 */

		void LaunchWidgetOperationL( SWidgetOperation aOperation );

		/**

		 * Check If widget Ui Process Exists

		 */		

		TBool CheckTaskExistsL();

		/**

		 * Queues widget resume operation

		 * @param aUid Uid of the widget

		 * @return void

		 */

		void QueueResumeL( TUid& aUid );

		/**

		 * Processes online/offline event

		 * @param aUid Uid of the widget

		 * @param aOperation Online/Offline operation to be queued

		 * @return void

		 */

		 void ProcessNetworkModeL( TUid& aUid, TWidgetOperations aOperation );

		/**

		 * Finds widget in the widget state array which has

		 * the same uid and state as specified in the params

		 * @param aUid Uid of the widget to be found

		 * @param aState Widget state

		 * @returns the array index of the widget found

		 */

		TInt FindWidget( TUid& aUid, TWidgetState aState );

		/**

		 * Finds widget in the widget state array which has

		 * the same uid as specified in the params

		 * @param aUid Uid of the widget to be found

		 * @returns the array index of the widget found

		 */

		TInt FindWidget( TUid& aUid );

		/**

		 * Checks if the widget has network access

		 * @param aUid Uid of the widget to be checked

		 * @returns ETrue if widget has network access,

		 * else returns EFalse

		 */

		TBool CheckNetworkAccessL( TUid& aUid );

		/**

		 * Prompt for Allow Platform Access

		 * @param aUid Uid of the widget

		 * @return void

		 */

		void AllowPlatformAccessL( TUid& aUid );

	private: // data

       	/**

        * Instance of CPS interface used for update with CPS.

        */

        MLiwInterface* iCPSInterface;

       	/**

       	 * Publish & Subscribe listener

       	 * own

       	 */

        CWrtHarvesterPSNotifier* iWidgetUIListener;

        /**

         * Publish & Subscribe listener

         * own

         */

        CWrtHarvesterPSNotifier* iWidgetRegListener;

        /**

         * Publish & Subscribe listener

         * own

         */

        CWrtHarvesterPSNotifier* iWidgetMMCListener;

        /**

         * Publish & Subscribe listener

         * own

         */        

		/**

    	* 

    	*/

        RWrtArray<CWrtHarvesterPublisherObserver> iObservers;

        /**

        * 

        */

        RWrtArray<CWrtInfo> iWidgetInfo;

        /**

        * 

        */

        RWrtArray<TWrtState> iWidgetStateArray;

		/**

    	* 

    	*/

        WrtHarvesterRegistryAccess iRegistryAccess;

		/**

    	* 

    	*/

        RArray<SWidgetOperation> iWidgetOperations;

        /**

         * 

         */

        RApaLsSession iApaSession;

        /**

         * Resource offset

         */

        TInt iResourceFileOffset;

        /**

         * 

         */        

        TInt          iHSCount;		

        /**

         *

         *

         */

         TBool        iDialogShown;

    };

#endif // C_WRTCONTENTHARVESTER_H