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CRemConNowPlayingTargetBase Class Reference

class CRemConNowPlayingTargetBase : public CRemConInterfaceBase

A parent class for CRemConDatabaseAwareNowPlayingTarget and CRemConDatabaseUnawareNowPlayingTarget.

This class is not intended for instantiation. Clients should instead use the appropriate derived class - either CRemConDatabaseAwareNowPlayingTarget or CRemConDatabaseUnawareNowPlayingTarget.

This class is only to be used by classes currently derived from it.

CRemConDatabaseAwareNowPlayingTarget CRemConDatabaseUnawareNowPlayingTarget

Inherits from

CRemConNowPlayingTargetBase
- CRemConInterfaceBase
  - CBase

Public Member Functions
IMPORT_C void	AddToNowPlayingResponse(TInt)
IMPORT_C void	NowPlayingContentChanged()
IMPORT_C void	PlayItemResponse(TInt)

Protected Member Functions
	CRemConNowPlayingTargetBase(CRemConInterfaceSelector &, MRemConDatabaseAwareNowPlayingTargetObserver &)
	CRemConNowPlayingTargetBase(CRemConInterfaceSelector &, MRemConDatabaseUnawareNowPlayingTargetObserver &)
	~CRemConNowPlayingTargetBase()
void	BaseConstructL()

Private Member Functions
void	AddToOperationQueue(TInt, const TDesC8 &)
void	DoNextMessage()
TAny *	GetInterfaceIf(TUid)
void	MrcibNewMessage(TUint, const TDesC8 &, TRemConMessageSubType)
TInt	NextMessageCb(TAny *)
void	ProcessAddToNowPlaying(const TDesC8 &)
void	ProcessGetStatus()
void	ProcessGetStatusAndBeginObserving()
TBool	ProcessNowPlaying(const TDesC8 &, TUint, TUint64 &, TRemConFolderScope &, TUint16 &)
void	ProcessPlayItem(const TDesC8 &)
void	SendError(TInt, TUint)
void	SendNotificationResponse(TRemConMessageSubType)
void	SendResponse(TUint8, TUint)

Inherited Functions
	CBase::CBase()
	CBase::Delete(CBase *)
	CBase::Extension_(TUint,TAny &,TAny )
	CBase::operator new(TUint)
	CBase::operator new(TUint,TAny *)
	CBase::operator new(TUint,TLeave)
	CBase::operator new(TUint,TLeave,TUint)
	CBase::operator new(TUint,TUint)
	CBase::~CBase()
	CRemConInterfaceBase::BaseConstructL(RRemConInterfaceFeatures &)
	CRemConInterfaceBase::BaseConstructL(RRemConInterfaceFeatures &,TBool)
	CRemConInterfaceBase::Bulk()const
	CRemConInterfaceBase::CRemConInterfaceBase(TUid,TUint,CRemConInterfaceSelector &,TRemConClientType)
	CRemConInterfaceBase::Cancel()
	CRemConInterfaceBase::InterfaceSelector()
	CRemConInterfaceBase::InterfaceUid()const
	CRemConInterfaceBase::MaxLength()const
	CRemConInterfaceBase::Target(TRemConClientType)
	CRemConInterfaceBase::Type()const
	CRemConInterfaceBase::~CRemConInterfaceBase()

Private Attributes
MRemConDatabaseAwareNowPlayingTargetObserver *	iDaObserver
MRemConDatabaseUnawareNowPlayingTargetObserver *	iDuObserver
TBool	iInProgress
CRemConInterfaceSelector &	iInterfaceSelector
TRemConMessageQueue *	iMsgQueue
CAsyncCallBack *	iNextMessageCallBack
TBool	iNotificationPending
RBuf8	iOutBuf

Constructor & Destructor Documentation

CRemConNowPlayingTargetBase(CRemConInterfaceSelector &, MRemConDatabaseAwareNowPlayingTargetObserver &)

CRemConNowPlayingTargetBase	(	CRemConInterfaceSelector &	aInterfaceSelector,
		MRemConDatabaseAwareNowPlayingTargetObserver &	aObserver
	)	[protected]

Parameters

CRemConInterfaceSelector & aInterfaceSelector
MRemConDatabaseAwareNowPlayingTargetObserver & aObserver

CRemConNowPlayingTargetBase(CRemConInterfaceSelector &, MRemConDatabaseUnawareNowPlayingTargetObserver &)

CRemConNowPlayingTargetBase	(	CRemConInterfaceSelector &	aInterfaceSelector,
		MRemConDatabaseUnawareNowPlayingTargetObserver &	aObserver
	)	[protected]

Parameters

CRemConInterfaceSelector & aInterfaceSelector
MRemConDatabaseUnawareNowPlayingTargetObserver & aObserver

~CRemConNowPlayingTargetBase()

IMPORT_C

~CRemConNowPlayingTargetBase

(

)

[protected, virtual]

Member Functions Documentation

AddToNowPlayingResponse(TInt)

IMPORT_C void

AddToNowPlayingResponse

(

TInt

aErr

)

Sends the response for the request MrcnptoAddToNowPlaying()

The client must call NowPlayingContentChanged() if the content of the now playing list has been changed after the client successfully adds the item to the now playing list and provides the response with KErrNone through this function.

param aErr The result of add to now playing operation.

KErrNone if the operation was successful.
KErrInvalidMediaLibraryStateCookie if the client is able to maintain unique UIDs accross the entire virtual filesystem, but the media library state cookie provided does not match the client's state cookie.
KErrInvalidUid if the uid of the item provided does not refer to any valid item.
KErrNowPlayingUidIsADirectory if the uid of the item provided refers to a directory which can not be handled by this media player.
KErrNowPlayingMediaInUse if the item is in use and can not be added to now playing list.
KErrNowPlayingListFull if the now playing list if full and no more items can be added.
System wide error code otherwise.

NowPlayingContentChanged()

Parameters

TInt aErr

AddToOperationQueue(TInt, const TDesC8 &)

void	AddToOperationQueue	(	TInt	aOperationId,
			const TDesC8 &	aData
		)	[private]

Parameters

TInt aOperationId
const TDesC8 & aData

BaseConstructL()

void

BaseConstructL

(

)

[protected, virtual]

Must be called by concrete types at construction time. Registers the interface with the interface selector.

DoNextMessage()

void

DoNextMessage

(

)

[private]

GetInterfaceIf(TUid)

TAny *

GetInterfaceIf

(

TUid

aUid

)

[private, virtual]

Gets a pointer to a specific interface version.

Parameters

TUid aUid

MrcibNewMessage(TUint, const TDesC8 &, TRemConMessageSubType)

void	MrcibNewMessage	(	TUint	aOperationId,
			const TDesC8 &	aData,
			TRemConMessageSubType	aMsgSubType
		)	[private]

Parameters

TUint aOperationId
const TDesC8 & aData
TRemConMessageSubType aMsgSubType

NextMessageCb(TAny *)

TInt

NextMessageCb

(

TAny *

aThis

)

[private, static]

Parameters

TAny * aThis

NowPlayingContentChanged()

IMPORT_C void

NowPlayingContentChanged

(

)

Called by the client in the case that the now playing content changed.

PlayItemResponse() AddToNowPlayingResponse()

PlayItemResponse(TInt)

IMPORT_C void

PlayItemResponse

(

TInt

aErr

)

Provide a response to the play item command. For database aware clients this would have been called via MrcdanptoPlayItem(). For database unaware client this would have been called via MrcdunptoPlayItem()

The client must call NowPlayingContentChanged() if the content of the now playing list has been changed after the client successfully plays the item and provides the response with KErrNone through this function.

NowPlayingContentChanged()

Parameters

TInt aErr

The result of play item operation.KErrNone if the operation was successful.KErrInvalidMediaLibraryStateCookie if the client is able to maintain unique UIDs accross the entire virtual filesystem, but the media library state cookie provided does not match the client's state cookie.KErrInvalidUid if the uid of the item provided does not refer to any valid item.KErrNowPlayingUidIsADirectory if the uid of the item provided refers to a directory which can not be handled by this media player.KErrNowPlayingMediaInUse if the item is in use and can not be played.System wide error code otherwise.

ProcessAddToNowPlaying(const TDesC8 &)

void

ProcessAddToNowPlaying

(

const TDesC8 &

aData

)

[private]

Parameters

const TDesC8 & aData

ProcessGetStatus()

void

ProcessGetStatus

(

)

[private]

ProcessGetStatusAndBeginObserving()

void

ProcessGetStatusAndBeginObserving

(

)

[private]

ProcessNowPlaying(const TDesC8 &, TUint, TUint64 &, TRemConFolderScope &, TUint16 &)

TBool	ProcessNowPlaying	(	const TDesC8 &	aData,
			TUint	aOperationId,
			TUint64 &	aItem,
			TRemConFolderScope &	aScope,
			TUint16 &	aMediaLibraryStateCookie
		)	[private]

Parameters

const TDesC8 & aData
TUint aOperationId
TUint64 & aItem
TRemConFolderScope & aScope
TUint16 & aMediaLibraryStateCookie

ProcessPlayItem(const TDesC8 &)

void

ProcessPlayItem

(

const TDesC8 &

aData

)

[private]

Parameters

const TDesC8 & aData

SendError(TInt, TUint)

void	SendError	(	TInt	aError,
			TUint	aOperationId
		)	[private]

Parameters

TInt aError
TUint aOperationId

SendNotificationResponse(TRemConMessageSubType)

void

SendNotificationResponse

(

TRemConMessageSubType

aMsgSubType

)

[private]

Parameters

TRemConMessageSubType aMsgSubType

SendResponse(TUint8, TUint)

void	SendResponse	(	TUint8	aStatus,
			TUint	aOperationId
		)	[private]

Parameters

TUint8 aStatus
TUint aOperationId

Member Data Documentation

MRemConDatabaseAwareNowPlayingTargetObserver * iDaObserver

MRemConDatabaseAwareNowPlayingTargetObserver *

iDaObserver

[private]

MRemConDatabaseUnawareNowPlayingTargetObserver * iDuObserver

MRemConDatabaseUnawareNowPlayingTargetObserver *

iDuObserver

[private]

TBool iInProgress

TBool

iInProgress

[private]

CRemConInterfaceSelector & iInterfaceSelector

CRemConInterfaceSelector &

iInterfaceSelector

[private]

TRemConMessageQueue * iMsgQueue

TRemConMessageQueue *

iMsgQueue

[private]

CAsyncCallBack * iNextMessageCallBack

CAsyncCallBack *

iNextMessageCallBack

[private]

TBool iNotificationPending

TBool

iNotificationPending

[private]

RBuf8 iOutBuf

RBuf8

iOutBuf

[private]