/*

* 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 "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:   VideoServices class definition

*

*/

#ifndef __VIDEOSERVICES_H__

#define __VIDEOSERVICES_H__

/**

 *

 * We need stub for this because it has static data and HW compilation of moc file fails because of that.

 *

 */

#include <QStringList>

//FORWARD CLASS DECLARATION

class VideoServiceUriFetch;

class VideoServicePlay;

class VideoServiceView;

class VideoServiceBrowse;

class VideoPlayerEngine;

class VideoServices : public QObject

{

    Q_OBJECT

    public:

        /**

         * Returns singleton instance for this class.

         * WARNING! Not safe to call this from destructor of another function scope static object!

         * @return The singleton instance.

         */

        static VideoServices *instance( VideoPlayerEngine* engine = 0 );

        /**

         * Decreases the reference count, when count reaches zero cleanup is done.

         *

         */

        void decreaseReferenceCount();

        /**

         * Returns the context title set by service requestee

         * @return QString the title

         */

        QString contextTitle() const;

        /**

         * Returns sort type defined by the service client.

         * @param None.

         * @return int.

         */

        int sortRole() const;

        /*

         * Enum reflecting the services provided 

         */

        enum TVideoService

        {

            ENoService,

            EUriFetcher,

            EPlayback,

            EView,

            EBrowse

        };

        /**

         * Returns service active status

         * @return bool true if active, false if not active

         */

        VideoServices::TVideoService currentService();

        /**

         * Returns browsing category.

         * @return see vcxmyvideosdef.h for default categories.

         */

        int getBrowseCategory() const;

    public slots:

        void itemSelected( const QString& item );

        void browsingEnded();

    signals:

        /*

         * Emitted when service user has set the title

         */    

        void titleReady( const QString& title );

        /*

         * Emitted to acticate requested plugin

         */

        void activated( int command );

    private:

        /**

         * Constructor

         */

        VideoServices();

        /**

         * Constructor

         */

        VideoServices( VideoPlayerEngine* engine );

        /**

         * Destructor.

         */

        virtual ~VideoServices();

        void setEngine( VideoPlayerEngine* engine );

        /**

         * Sets the active service

         * @param service

         */

        void setCurrentService( VideoServices::TVideoService service );

        /**

         * Returns the current engine

         * @return engine

         */

        VideoPlayerEngine* engine();

    private:

        /**

         * Reference count.

         */

        int mReferenceCount;

        /**

         * VideoServiceUriFetch service instance.

         */

        VideoServiceUriFetch* mServiceUriFetch;

        /**

         * VideoServicePlay service instance.

         */

        VideoServicePlay* mServicePlay;

        /**

         * VideoServiceView service instance.

         */    

        VideoServiceView* mServiceView; 

        /**

         * VideoServiceBrowse service instance.

         */

        VideoServiceBrowse *mServiceBrowse;

        /**

         * Pointer of VideoPlayerEngine.

         */

        VideoPlayerEngine* mEngine;

        /*

         * Current service

         */

        VideoServices::TVideoService mCurrentService;

        /**

         * Sort role.

         */

        int mSortRole;

        friend class VideoServiceUriFetch;    

        friend class VideoServicePlay;        

        friend class VideoServiceView;        

        friend class VideoServiceBrowse;

};

#endif //__VIDEOSERVICES_H__