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:  Manipulates the audio output mode.

    15 *

    16 */

    17 #ifndef CAMMSAUDIOOUTPUTCONTROL_H

    18 #define CAMMSAUDIOOUTPUTCONTROL_H

    19 

    20 //  INCLUDES

    21 #include "cammscontrol.h"

    22 #include <cmmamidiplayer.h>

    23 #include <mmmaplayerstatelistener.h>

    24 // for audio routing control

    25 #include <AudioOutput.h>

    26 

    27 // for audio routing observers

    28 #include <MAudioOutputObserver.h>

    29 #include <AccMonitor.h>

    30 #include <AccMonitorInfo.h>

    31 

    32 

    33 class CMMAVolumeControl;

    34 

    35 // CONSTANTS

    36 _LIT(KAMMSAudioOutputControl, "AudioOutputControl");

    37 // CLASS DECLARATION

    38 

    39 /**

    40 *

    41 *  Controls for the Audio Routing.

    42 *  This class delegates Audio Routing setting calls to RMMFController.

    43 *

    44 *

    45 *  @since X.X

    46 */

    47 NONSHARABLE_CLASS(CAMMSAudioOutputControl)

    48         : public CAMMSControl, public MMMAPlayerStateListener ,

    49           public MAccMonitorObserver

    50 {

    51 public:

    52     // Constructors and destructor

    53     /**

    54     * Two-phased constructor.

    55     * @param aPlayer Player that has this control.

    56     */

    57     static CAMMSAudioOutputControl* NewLC(CMMAPlayer* aPlayer);

    58 

    59     /**

    60     * Destructor.

    61     */

    62     ~CAMMSAudioOutputControl();

    63 

    64 public:

    65     // New functions

    66     /**

    67     * Sets the AudioOutput.

    68     *

    69     * @param aPreference The new AudioOutput to be set.

    70     */

    71     TInt SetAudioOutput(TInt aPreference);

    72 

    73     /**

    74     * Gets the Audio Routing preference.

    75     *

    76     * @return The previously set Audio Routing preference.

    77     */

    78     TInt GetAudioOutput();

    79     /**

    80     * Reset the AudioOutput java object with changed value of current

    81     */

    82     void GetCurrentPreference();

    83     /**

    84     * Gets the Audio Routing preference.

    85     *

    86     * @return The previously set Audio Routing preference. and if not set retruns the device default

    87     */

    88 

    89     TInt GetCurrentPrefInt();

    90     /**

    91     * Gets the Audio Routing Device Default.

    92     *

    93     * @returns the device default

    94     */

    95     TInt GetDeviceDefaultPreference();

    96     /**

    97     * Create an Observer to get the notification for the Headset state.

    98     * Also initializes iCurrentActualPreference with CAudioOutput::EPrivate if headset is connected.

    99     * @returns the device default

   100     */

   101     void CreateHeadsetStateObserverL();

   102     /**

   103     * Actual native control is created using this function

   104     */

   105     void CreateNativeAudioOutputControlL();

   106     /**

   107     * seting java object used to send as callback event

   108     */

   109     void SetJavaAudioOutputObject(jobject object);

   110     /**

   111     * Reset the value of java object with current values

   112     */

   113     void ResetJavaAudioOutputObject();

   114     /**

   115     * Check if there is any change in Current output Mode,It sends a event to java

   116     * If there is no change it returns silently

   117     */

   118     void NotifyJavaOnChange();

   119 

   120 

   121 public:

   122     // From MMMAPlayerStateListener

   123     void StateChanged(TInt aState);

   124 

   125 

   126 public:

   127     // From MAudioOutputObserver

   128 

   129     void DisconnectedL(CAccMonitorInfo *aAccessoryInfo);

   130     void ConnectedL(CAccMonitorInfo* aAccessoryInfo);

   131     void AccMonitorObserverError(TInt aError);

   132 

   133 public:

   134     // Functions from base classes

   135     const TDesC& ClassName() const;

   136 

   137 protected:

   138     // New functions

   139     /**

   140     * @param aAmmsPreference AMMS preference to be set.

   141     */

   142     TInt SetAudioOutputToMmf(CAudioOutput::TAudioOutputPreference aAmmsPreference);

   143 

   144 private:

   145     /**

   146     * C++ constructor.

   147     * @param aPlayer Player that has this control.

   148     */

   149     CAMMSAudioOutputControl(CMMAPlayer* aPlayer);

   150 

   151     /**

   152     * Symbian 2nd phase constructor.

   153     */

   154     void ConstructL();

   155 

   156     CMMAVolumeControl* GetVolumeControl();

   157 

   158 private:

   159     //Data

   160     // Preference visible in AMMS.

   161     CAudioOutput::TAudioOutputPreference iRoutingUserPreference;

   162     // Preference of the device changes by inserting/removing Jack.

   163     CAudioOutput::TAudioOutputPreference iDefaultDevicePreference;

   164     // Preference of the device changes by inserting/removing Jack.

   165     TInt iCurrentPreference;

   166     // owned

   167     CAudioOutput* iAudioOutput;

   168     CMMAPlayer::TPlayerState iPlayerState;

   169     // Reference to volume control to set the current audio o/p preference.

   170     // Not owning

   171     CMMAVolumeControl* iVolumeControl;

   172     // Owning

   173     CAccMonitor *iAccMonitor;

   174     RConnectedAccessories iArray;

   175     jobject iJavaAudioOutputObj;

   176     JNIEnv* iJni;

   177 

   178 };

   179 

   180 #endif // CAMMSAUDIOOUTPUTCONTROL_H

   181 

   182