1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:   VideoServices class definition

    15 *

    16 */

    17 

    18 #ifndef __VIDEOSERVICES_H__

    19 #define __VIDEOSERVICES_H__

    20 

    21 #include <QStringList>

    22 #include "videoplayerappexport.h"

    23 

    24 //FORWARD CLASS DECLARATION

    25 class VideoServiceUriFetch;

    26 class VideoServicePlay;

    27 class QVideoPlayerEngine;

    28 

    29 class VIDEOPLAYERAPP_DLL_EXPORT VideoServices : public QObject

    30 {

    31     Q_OBJECT

    32 

    33 public:

    34 

    35     /**

    36      * Returns singleton instance for this class.

    37      *

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

    39      *

    40      * @return The singleton instance.

    41      */

    42     static VideoServices *instance(QVideoPlayerEngine* engine = 0);

    43 

    44     /**

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

    46      *

    47      */

    48     void decreaseReferenceCount();

    49 

    50     /**

    51      * Returns the context title set by service requestee

    52      *

    53      * @return QString the title

    54      *

    55      */

    56     QString contextTitle() const;

    57 

    58 	/*

    59 	 * Enum reflecting the services provided 

    60 	 */

    61     enum TVideoService

    62     {

    63         ENoService,

    64         EUriFetcher,

    65         EPlayback

    66     };

    67 

    68     /**

    69      * Returns service active status

    70      *

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

    72      *

    73      */

    74     VideoServices::TVideoService currentService();

    75 

    76 public slots:

    77     void itemSelected(const QString& item);

    78 

    79 signals:

    80 	/*

    81 	 * Emitted when service user has set the title

    82 	 */    

    83 	void titleReady(const QString& title);

    84 

    85 	/*

    86 	 * Emitted to acticate requested plugin

    87 	 */

    88 	void activated(int command);

    89 

    90 private:

    91 

    92     /**

    93      * Constructor

    94      */

    95     VideoServices();

    96 

    97     /**

    98      * Constructor

    99      */

   100     VideoServices(QVideoPlayerEngine* engine);

   101 

   102     /**

   103      * Destructor.

   104      */

   105     virtual ~VideoServices();

   106 

   107     void setEngine(QVideoPlayerEngine* engine);

   108 

   109     /**

   110      * Sets the active service

   111      *

   112      * @param service

   113      *

   114      */

   115     void setCurrentService(VideoServices::TVideoService service);

   116 

   117     /**

   118      * Returns the current engine

   119      *

   120      * @return engine

   121      *

   122      */

   123     QVideoPlayerEngine* engine();

   124 

   125     Q_DISABLE_COPY(VideoServices)

   126 

   127 private:

   128 

   129     /**

   130      * Reference count.

   131      */

   132     int mReferenceCount;

   133 

   134     /**

   135      * Singleton instance.

   136      */

   137     static VideoServices* mInstance;

   138 

   139     /**

   140      * VideoServiceUriFetch service instance.

   141      */

   142     VideoServiceUriFetch* mServiceUriFetch;

   143 

   144     /**

   145      * VideoServicePlay service instance.

   146      */

   147     VideoServicePlay* mServicePlay;

   148 

   149     /**

   150      * Pointer of QVideoPlayerEngine.

   151      */

   152     QVideoPlayerEngine* mEngine;

   153 

   154 	/*

   155 	 * Current service

   156 	 */

   157     VideoServices::TVideoService mCurrentService;

   158 

   159     friend class VideoServiceUriFetch;

   160 

   161     friend class VideoServicePlay;

   162     };

   163 

   164 #endif //__VIDEOSERVICES_H__