/*

* Copyright (c) 2002-2007 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:  This class is base class for all players.

*

*/

#ifndef CMMAPLAYER_H

#define CMMAPLAYER_H

//  INCLUDES

#include "cmmacontrol.h"

#include "cmmasourcestream.h"

#include "cmmaplayerevent.h"

#include "mmmasourcestreamlistener.h"

#include "mmmaplayerstatelistener.h"

//  FORWARD DECLARATIONS

class CMMADurationUpdater;

//  CONTANTS

// Not enough stream to realize to player

const TInt KErrNotEnoughStreams = -7002;

/**

 * Used in set loop count to indicate forever loop.

 */

const TInt KJavaRepeatForever = -1;

/**

 * Returned to Java if duration or mediatime is unknown.

 */

const TInt KTimeUnknown = -1;

//  CLASS DECLARATION

/**

*   This class is base class for all players.

*

*

*/

class CMMAPlayer : public CBase,

        public MMMASourceStreamListener

{

public:

    /**

     * Player state. Same that in Java side.

     */

    enum TPlayerState

    {

        EClosed = 0,

        EUnrealized = 100,

        ERealized = 200,

        EPrefetched = 300,

        EStarted = 400

    };

public:

    /**

     * Deletes all owned members.

     */

protected:

    /**

     * Initializes member variables to defaults.

     */

    /**

     * Second phase construct.

     */

    void ConstructL();

public: // static methods

    /**

     * Creates and adds source stream to the player. New stream will be

     * owned by this player.

     *

     * @param aJniEnv Used to create source stream.

     * @param aPlayer Player to use.

     * @param aEventSource Used to create source stream.

     * @param aReader Java side stream object.

     * @param aSourceStream New stream's pointer will be set to this.

     */

    static void StaticAddSourceStreamL(JNIEnv* aJniEnv,

                                       CMMAPlayer* aPlayer,

                                       CMMAEventSource* aEventSource,

                                       jobject aReader,

                                       CMMASourceStream** aSourceStream);

    /**

     * Sets Java listener object that will be used to post player events

     * and control specific events.

     *

     * @param aPlayer Player to use.

     * @param aListenerObject Java side listener object.

     * @param aJni Used to get method ids.

     * @param aPoster Used to post events.

     */

    static void StaticSetPlayerListenerObjectL(CMMAPlayer* aPlayer,

            jobject aListenerObject,

            JNIEnv* aJni,

            MMMAEventPoster* aPoster);

    /**

     * Initializes action completed callbacks.

     *

     * @param aPlayer Player to use.

     * @param aPlayerObject Java side Player object.

     * @param aJni Used to get method id.

     */

    static void StaticInitPlayerL(CMMAPlayer* aPlayer,

                                  jobject aPlayerObject,

                                  JNIEnv* aJni);

    /**

     * Static getter for control objects.

     *

     * @param aPlayer Player to use.

     * @param aIndex Control's index.

     */

    IMPORT_C static CMMAControl* StaticControl(CMMAPlayer* aPlayer,

            TInt aIndex);

public: // New methods

    /**

     * Realizes the player. Implementations do not necessarily add

     * functionality in this method. If successful player is in

     * ERealized state.

     */

    virtual void RealizeL();

    /**

     * Prefetches data. Usually data from source stream will be read. When

     * prefetch completes action completed event will be delivered. If

     * successful player is in EPrefetched state.

     */

    virtual void PrefetchL() = 0;

    /**

     * Start playing. Started event will be posted. If there is no error

     * player will be in EStarted state.

     */

    /**

     * Stops playing. After this player may be restarted with StartL method.

     * After this player is in EPrefetched state.

     *

     * @param aPostEvent Indicates if java be informed.

     */

    virtual void StopL(TBool aPostEvent) = 0;

    /**

     * Releases resources. Player state can be changed.

     */

    virtual void DeallocateL() = 0;

    /**

     * Close the Player and release its resources. After this player is in

     * EClosed state and cannot be used anymore.

     */

    virtual void CloseL();

    /**

     * Gets duration.

     *

     * @param aDuration Duration or KTimeUnknown if not specified.

     */

    /**

     * Sets media time.

     *

     * @param aTime Time to set. When method returns parameter contains

     *              actual media time set.

     */

    virtual void SetMediaTimeL(TInt64* aTime);

    /**

     * Gets media time.

     *

     * @param aMediaTime When method returns parameter contains the media

     * time.

     */

    virtual void GetMediaTime(TInt64* aMediaTime);

    /**

     * Sets loop count.

     *

     * @param aCount Indicates the number of times the content will be

     *               played. KJavaRepeatForever indicates looping

     *               indefintely.

     */

    IMPORT_C virtual void SetLoopCount(TInt aCount);

    /**

     * Get the content type of the media that's being played back by this

     * Player.

     * @return The content type being played back by this Player. NULL if

     * content type is not available.

     */

    HBufC* ContentType() const;

public: // new methods

    /**

     * Sets Java listener object that will be used to post player events

     * and control specific events.

     *

     * @param aListenerObject Java side listener object.

     * @param aJni Used to get method ids.

     * @param aPoster Used to post events.

     */

                                          JNIEnv* aJni,

                                          MMMAEventPoster* aPoster);

    /**

     * Returns total count of the controls owned by this player.

     *

     * @return Count of the controls.

     */

    IMPORT_C TInt ControlCount();

    /**

     * Gets control. Ownership is not tranferred.

     *

     * @param aIndex Control index.

     */

    IMPORT_C CMMAControl* Control(TInt aIndex);

    /**

     * Adds new control. Ownership is transferred to this class.

     *

     * @param aControl New control.

     */

    IMPORT_C virtual void AddControlL(CMMAControl* aControl);

    /**

     * Adds listener. All listeners will informed when player state changes.

     *

     * @param aListener New listener.

     */

    IMPORT_C void AddStateListenerL(MMMAPlayerStateListener* aListener);

    /**

     * Removes a player state listener.

     *

     * @param aListener Listener to be removed.

     */

    IMPORT_C void RemoveStateListener(MMMAPlayerStateListener* aListener);

    /**

     * @return Player's state.

     */

    inline TInt State();

    /**

     * Returns player's type. Player types are defined in derived player

     * headers.

     * @return Player type.

     */

    virtual const TDesC& Type();

    /**

     * Sets player's content type, which can be queried with ContentType

     * method. Ownership is transfered.

     * @param aContentType Player's content type.

     */

    void SetContentType(HBufC* aContentType);

    /**

     * Reset all source streams.

     */

    void ResetSourceStreams();

    /**

     * Refresh all the controls.

     */

    void RefreshControls();

    /**

    * delete all the controls.

    */

    void DeleteControls();

public: // methods for informing java player listeners

    /**

     * Post event which event data will be Long java object.

     *

     * @param aEventType Event's type specified in CMMAPlayerEvent.

     * @param aLongEventData Event data context.

     */

    void PostLongEvent(CMMAPlayerEvent::TEventType aEventType,

                       const TInt64& aLongEventData);

    /**

     * Post event which event data will be string.

     *

     * @param aEventType Event's type specified in CMMAPlayerEvent.

     * @param aStringEventData Event data context.

     */

    IMPORT_C void PostStringEvent(CMMAPlayerEvent::TEventType aEventType,

                                  const TDesC& aStringEventData);

    /**

     * Post event which event data will be a java object.

     *

     * @param aEventType Event's type specified in CMMAPlayerEvent.

     * @param aEventData Java object.

     */

    IMPORT_C void PostObjectEvent(CMMAPlayerEvent::TEventType aEventType,

                                  const jobject aEventData);

    /**

     * Completes action and allows Java side to continue.

     *

     * @param aError of the action or KErrNone.

     */

    IMPORT_C void PostActionCompleted(TInt aError);

protected: // new methods

    /**

     * @see StaticAddSourceStreamL

     */

    IMPORT_C virtual CMMASourceStream* AddSourceStreamL(JNIEnv* aJniEnv,

            CMMAEventSource* aEventSource,

            jobject aReader);

    /**

     * Changes player's state and informs all MMMAPlayerStateListeners.

     *

     * @param aState New state.

     */

public: // from MMMASourceStreamListener

    virtual void ReadCompletedL(TInt aStatus, const TDesC8& aData);

protected: // Memeber data

    /**

     * Array of controls. All controls are owned by this class.

     */

    RPointerArray< CMMAControl > iControls;

    /**

     * Array of streams. All streams are owned by this class.

     */

    RPointerArray< CMMASourceStream > iSourceStreams;

    /**

     * Array of listeners. Not owned.

     */

    RPointerArray< MMMAPlayerStateListener > iStateListeners;

    /**

     * Used to inform java side of completion.

     * Owned.

     */

    CMMAEvent* iActionCompletedEvent;

    /**

     * Player state listener object.

     */

    jobject iListenerObject;

    /**

     * java method postEvent(String,Object)

     */

    jmethodID iPostEvent;

    /**

     * java method postObjectEvent(int,Object)

     */

    jmethodID iPostObjectEvent;

    /**

     * java method postLongEvent(int,long)

     */

    jmethodID iPostLongEvent;

    /**

     * java method postStringEvent(int,String)

     */

    jmethodID iPostStringEvent;

    /**

     * java method postControlEvent(int,String)

     */

    jmethodID iPostControlEvent;

    /**

     * Not owned.

     */

    MMMAEventPoster* iEventPoster;

    /**

     * Total number of wanted loops.

     */

    TInt iRepeatNumberOfTimes;

    /**

     * Indicates if looping indefintely.

     */

    TBool iRepeatForever;

    /**

     * Current loop count.

     */

    TInt iRepeatCount;

    /**

     * Content duration in microseconds.

     */

    TInt64 iDuration;

    /**

     * Current state of the player.

     */

    TPlayerState iState;

    /**

     * Event for notificating Java that memory allocation has failed.

     * Owned.

     */

    CMMAPlayerEvent* iOOMErrorEvent;

    /**

     * The content type being played back by this Player.

     * Owned. May be NULL until type is available.

     */

    HBufC* iContentType;

    /**

     * Player state listener that sends duration update event to Java

     * if duration has changed when player state changes.

     */

    CMMADurationUpdater* iDurationUpdater;

};

inline TInt CMMAPlayer::State()

{

    return iState;

}

#endif // CMMAPLAYER_H