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epoc32/include/mw/absolutevolumeapitarget.h
author William Roberts <williamr@symbian.org>
Wed, 31 Mar 2010 12:33:34 +0100
branchSymbian3
changeset 4 837f303aceeb
permissions -rw-r--r--
Current Symbian^3 public API header files (from PDK 3.0.h)
This is the epoc32/include tree with the "platform" subtrees removed, and
all but a selected few mbg and rsg files removed. 
     1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 

    17 

    18 /**

    19  @file

    20  @publishedAll

    21  @released

    22 */

    23 

    24 #ifndef REMCONABSOLUTEVOLUMEAPITARGET_H

    25 #define REMCONABSOLUTEVOLUMEAPITARGET_H

    26 

    27 #include <remcon/remconinterfacebase.h>

    28 #include <remcon/remconinterfaceif.h>

    29 

    30 _LIT(KAbsoluteVolumeTargetPanicName, "AbsoluteVolumeTarget");

    31 enum TAbsoluteVolumeTargetPanics

    32     {

    33     ETargetInvalidMaxVolume = 0,

    34     ETargetVolumeBeyondMaxVolume = 1,

    35     };

    36 

    37 class MRemConAbsoluteVolumeTargetObserver;

    38 

    39 /**

    40 Client-instantiable type supporting sending absolute volume API responses for

    41 Set Absolute Volume and Register Absolute Volume Change Notification. This API

    42 should be used in preference to the extapi.

    43 */

    44 NONSHARABLE_CLASS(CRemConAbsoluteVolumeTarget) : public CRemConInterfaceBase,

    45                                                  public MRemConInterfaceIf2

    46 	{

    47 public:

    48 	IMPORT_C static CRemConAbsoluteVolumeTarget* NewL(

    49 			CRemConInterfaceSelector& aInterfaceSelector, 

    50 			MRemConAbsoluteVolumeTargetObserver& aObserver,

    51 			TUint32 aVolume, 

    52 			TUint32 aMaxVolume);

    53 	

    54 	IMPORT_C ~CRemConAbsoluteVolumeTarget();

    55 

    56 public:

    57 	IMPORT_C void SetAbsoluteVolumeResponse(TUint32 aVolume, 

    58 			TInt aErr);

    59 	

    60 	IMPORT_C void AbsoluteVolumeChanged(TUint32 aVolume);

    61 	

    62 private:

    63     CRemConAbsoluteVolumeTarget(CRemConInterfaceSelector& aInterfaceSelector,

    64     		MRemConAbsoluteVolumeTargetObserver& aObserver,

    65     		TUint32 aVolume, 

    66     		TUint32 aMaxVolume);

    67 

    68 	void ConstructL();

    69 

    70 private: // From CRemConInterfaceBase

    71 	TAny* GetInterfaceIf(TUid aUid);

    72 

    73 private: // From MRemConInterfaceIf2

    74 	void MrcibNewMessage(TUint aOperationId, 

    75 			const TDesC8& aData, 

    76 			TRemConMessageSubType aMsgSubType);

    77 

    78 private: // Utility Funtions

    79 	void SendError(TInt aError, TUint aOperationId);

    80 	void SendNotificationResponse(TRemConMessageSubType aMsgSubType);

    81 	void ProcessGetStatus();

    82 	void ProcessGetStatusAndBeginObserving();

    83 	void ProcessSetAbsoluteVolume(const TDesC8& aData);

    84 

    85 private: // Unowned

    86     MRemConAbsoluteVolumeTargetObserver& iObserver;

    87 

    88 private: // Owned

    89 	// ETrue indicates a request for absolute volume change notification has 

    90 	// been received.

    91 	TBool                     iAbsoluteVolumeNotificationRequest;

    92 	RBuf8                     iOutBuf;

    93 	TUint32                   iClientVolume;

    94 	TUint32                   iClientMaxVolume;

    95 	};

    96 #endif // ABSOLUTEVOLUMEAPITARGET_H
test