/*

* Copyright (c) 2004-2008 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:  Implementation of the PhCltExtension Image handler interface.

*

*/

#ifndef CPHCLTIMAGEHANDLERIMPLEMENTATION_H

#define CPHCLTIMAGEHANDLERIMPLEMENTATION_H

//  INCLUDES

/**

*  Implementation of image handler interface.

*

*  @lib PhoneClient.lib

*  @since Series60 3.2

*/

NONSHARABLE_CLASS ( CPhCltImageHandlerImplementation )

:   public CPhCltImageHandler, public MPhCltImageObserver

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CPhCltImageHandlerImplementation* NewL();

        /**

        * Destructor.

        */

        ~CPhCltImageHandlerImplementation();

    public: // Functions from base classes

        /**

        * @see CPhCltImageHandler.

        */        

        TInt SaveImages( CPhCltImageParams& aParams );

        /**

        * @see CPhCltImageHandler.

        */

        TInt LoadImages( CPhCltImageParams*& aParams );

        /**

        * @see CPhCltImageHandler::CPhCltBaseImageParamsL().

        */

        virtual CPhCltImageParams* 

            CPhCltBaseImageParamsL( const TPhCltImageType aType ); 

        /**

        * @see CPhCltImageHandler::OpenDefaultVtImage().

        */

        virtual TInt OpenDefaultVtImage( RFile& aFile );

        /**

        * @see CPhCltImageHandler::SaveVtImage()

        */

        virtual void SaveVtImageL( MPhCltImageObserver& aObserver,

            const TDesC& aImagePath );

        /**

        * @see CPhCltImageHandler::CancelSaveVtImage

        */

        virtual void CancelSaveVtImage();

        /**

        * @see CPhCltImageHandler::OpenVtImage()

        */

        virtual TInt OpenVtImage( RFile& aFile );

    public: // from MPhCltImageObserver    

        virtual void HandleImageSaveCompleteL( TInt aResult );

    private:

        /**

        * C++ constructor.

        */

        CPhCltImageHandlerImplementation();

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL();

        /**

        * Common code for opening default and user defined image.

        */                               

        TInt OpenVtImageCommon( 

            RFile& aFile, 

            const TBool aDefaultImage );

        /**

        * Internal class for handling asynchronous image saving.

        */

        class CVtImageSaver : public CActive

        {

        public:

            /** Saves VT image. Deletes itself after observer callback 

             * or cancellation */

            static CVtImageSaver* SaveLD(

                MPhCltImageObserver& aObserver,

                RPhCltImageHandler& aHandler,

                const TDesC& aImagePath );

        private:

            CVtImageSaver( 

                MPhCltImageObserver& aObserver,

                RPhCltImageHandler& aHandler );

            ~CVtImageSaver();

        private:

            void DoSave( const TDesC& aImagePath );

        private: // from CActive

            /** handles observer callback */

            void RunL();

            /**  */

            void DoCancel();

        private:

        MPhCltImageObserver& iObserver;

        RPhCltImageHandler& iHandler;

        };

    private: // Data

        RPhCltImageHandler iStillHandler;

        //RPhCltServer class instance creates phonesession

        RPhCltServer iServer;

        // Observer for async image saving

        MPhCltImageObserver* iObserver;

        // not owned

        CVtImageSaver* iVtImageSaver;

    };

#endif      // CPHCLTIMAGEHANDLERIMPLEMENTATION_H

// End of File