videoplayback/videohelix/src/mpxvideoaccessoryobserver.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 27 Apr 2010 16:40:33 +0300
branchRCL_3
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parent 10 ce5ada96ab30
child 21 55fa1ec415c6
permissions -rw-r--r--
Revision: 201015 Kit: 201017
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/*
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* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:  This class observes the accessory framework.
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 *
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*/
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// Version : %version: 8 %
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//
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//  INCLUDE FILES
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//
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#include <e32svr.h>
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#include <AccPolSubblockNameArray.h>
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#include "mpxvideoaccessoryobserver.h"
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#include "mpxvideoplaybackcontroller.h"
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#include "mpxvideo_debug.h"
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//
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// ============================ MEMBER FUNCTIONS ===================================================
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//
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// -------------------------------------------------------------------------------------------------
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//   CMPXVideoAccessoryObserver::NewL
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//   Two-phased constructor.
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// -------------------------------------------------------------------------------------------------
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//
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CMPXVideoAccessoryObserver*
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CMPXVideoAccessoryObserver::NewL( CMPXVideoPlaybackController* aController )
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{
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    MPX_ENTER_EXIT(_L("CMPXVideoAccessoryObserver::NewL()"));
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    CMPXVideoAccessoryObserver* self = new (ELeave) CMPXVideoAccessoryObserver( aController );
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    CleanupStack::PushL( self );
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    self->ConstructL();
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    CleanupStack::Pop( self );
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    return self;
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}
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// -------------------------------------------------------------------------------------------------
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//   CMPXVideoAccessoryObserver::ConstructL
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//   Symbian 2nd phase constructor can leave
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// -------------------------------------------------------------------------------------------------
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//
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void CMPXVideoAccessoryObserver::ConstructL()
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{
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    MPX_ENTER_EXIT(_L("CMPXVideoAccessoryObserver::ConstructL()"));
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#ifdef __ACCESSORY_FW
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    User::LeaveIfError( iServer.Connect() );
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    User::LeaveIfError( iConnection.CreateSubSession( iServer ) );
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    //
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    //  Get initial accessory status synchronously
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    //
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    iConnection.GetAccessoryConnectionStatus( iGenericIdArray );
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#endif
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    //
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    //  This will set check if a TV-Out accessory has been connected
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    //  and initialize the member variable
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    //
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    UpdateTvOutStatusL();
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    StartMonitoringL();
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}
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// -------------------------------------------------------------------------------------------------
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//   CMPXVideoAccessoryObserver::CMPXVideoAccessoryObserver
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// -------------------------------------------------------------------------------------------------
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//
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CMPXVideoAccessoryObserver::CMPXVideoAccessoryObserver( CMPXVideoPlaybackController* aController )
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    : CActive( CActive::EPriorityStandard )
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    , iController( aController )
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    , iTvOutConnected( EFalse )
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    , iTvOutPlaybackAllowed( ETrue )
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{
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    CActiveScheduler::Add( this );
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}
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// -------------------------------------------------------------------------------------------------
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//   CMPXVideoAccessoryObserver::~CMPXVideoAccessoryObserver
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// Destructor, close and release the handles.
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// -------------------------------------------------------------------------------------------------
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//
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CMPXVideoAccessoryObserver::~CMPXVideoAccessoryObserver()
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{
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    MPX_ENTER_EXIT(_L("CMPXVideoAccessoryObserver::~CMPXVideoAccessoryObserver()"));
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    Cancel();
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#ifdef __ACCESSORY_FW
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    iConnection.CloseSubSession();
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    iServer.Disconnect();
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#endif
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}
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// -------------------------------------------------------------------------------------------------
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//   CMPXVideoAccessoryObserver::StartMonitoringL
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// -------------------------------------------------------------------------------------------------
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//
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void CMPXVideoAccessoryObserver::StartMonitoringL()
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{
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    MPX_ENTER_EXIT(_L("CMPXVideoAccessoryObserver::StartMonitoringL()"));
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    if ( ! IsActive() )
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    {
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#ifdef __ACCESSORY_FW
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        iConnection.NotifyAccessoryConnectionStatusChanged( iStatus, iGenericIdArray );
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#endif
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        SetActive();
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    }
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}
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// -------------------------------------------------------------------------------------------------
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//   CMPXVideoAccessoryObserver::UpdateTvOutStatusL
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// -------------------------------------------------------------------------------------------------
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//
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TBool CMPXVideoAccessoryObserver::UpdateTvOutStatusL()
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{
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    MPX_DEBUG(_L("CMPXVideoAccessoryObserver::UpdateTvOutStatusL()"));
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    TBool statusChanged = EFalse;
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    //
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    //  Initialize TV-Out value to EFalse before checking if
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    //  accessories support TV-Out
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    //
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    TBool tvOutConnected = EFalse;
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#ifdef __ACCESSORY_FW
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    CAccPolSubblockNameArray* nameArray = CAccPolSubblockNameArray::NewL();
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    CleanupStack::PushL( nameArray );
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    //
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    //  Get the number of currently connected accessories
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    //  Loop through each connected accessory looking for
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    //  the desired capabilities
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    //
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    const TInt count = iGenericIdArray.Count();
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    for ( TInt index = 0 ; index < count ; index++ )
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    {
10
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        TAccPolGenericID genId = iGenericIdArray.GetGenericIDL( index );
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0
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        //
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        //  Get all supported capabilities for this connected accessory.
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        //
10
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        iConnection.GetSubblockNameArrayL( genId, *nameArray );
0
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        //
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        //  Check if this connected accessory supports TV-Out
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        //
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        if ( nameArray->HasName( KAccVideoOut ) )
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        {
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            MPX_DEBUG(_L("    TV-Out Capabilities Exist"));
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16
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            tvOutConnected = ETrue;                         
0
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        }
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    }
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    CleanupStack::PopAndDestroy( nameArray );
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#endif
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    //
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    //  Check if the TV-Out status has changed
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    //
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    if ( iTvOutConnected != tvOutConnected )
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    {
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        iTvOutConnected = tvOutConnected;
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16
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        if ( iTvOutConnected ) 
0
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        {
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            //
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            //  Check the playablility of the clip
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            //
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            iTvOutPlaybackAllowed = iController->iPlaybackMode->IsTvOutAllowedL();
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        }
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        else
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        {
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            iTvOutPlaybackAllowed = ETrue;
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        }
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        statusChanged   = ETrue;
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    }
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16
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    MPX_DEBUG(_L("CMPXVideoAccessoryObserver::UpdateTvOutStatusL  iTvOutConnected = %d"), iTvOutConnected);
0
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   200
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    MPX_DEBUG(_L("CMPXVideoAccessoryObserver::UpdateTvOutStatusL() ret = %d"), statusChanged);
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   202
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    return statusChanged;
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}
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   205
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// -----------------------------------------------------------------------------
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//   CMPXVideoAccessoryObserver::RunL
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// -----------------------------------------------------------------------------
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//
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void CMPXVideoAccessoryObserver::RunL()
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{
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    MPX_ENTER_EXIT(_L("CMPXVideoAccessoryObserver::RunL()"),
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                   _L("iStatus = %d"), iStatus.Int());
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   214
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#ifdef __ACCESSORY_FW
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    if ( KErrNone == iStatus.Int() )
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    {
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        //
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   219
        //  Check for TV-Out status change
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   220
        //  If a changed, issue notice to the observer
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        //
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        if ( UpdateTvOutStatusL() )
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        {
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   224
            iController->HandleTvOutEventL( iTvOutConnected );
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        }
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    }
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#endif
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    //
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    //  Renew request for accessory events
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    //
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    StartMonitoringL();
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}
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// -----------------------------------------------------------------------------
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//   CMPXVideoAccessoryObserver::DoCancel
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// -----------------------------------------------------------------------------
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//
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void CMPXVideoAccessoryObserver::DoCancel()
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{
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    MPX_ENTER_EXIT(_L("CMPXVideoAccessoryObserver::DoCancel()"));
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#ifdef __ACCESSORY_FW
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    iConnection.CancelNotifyAccessoryConnectionStatusChanged();
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#endif
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}
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// -----------------------------------------------------------------------------
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//   CMPXVideoAccessoryObserver::RunError
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// -----------------------------------------------------------------------------
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//
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TInt CMPXVideoAccessoryObserver::RunError( TInt aError )
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{
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    MPX_ENTER_EXIT(_L("CMPXVideoAccessoryObserver::RunError()"),
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                   _L("aError = %d"), aError);
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#ifdef __ACCESSORY_FW
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    //
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    //  Error occurred, issue new request for accessory status
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    //
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    iConnection.NotifyAccessoryConnectionStatusChanged( iStatus, iGenericIdArray );
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#endif
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    return KErrNone;
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}
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// -------------------------------------------------------------------------------------------------
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//   CMPXVideoAccessoryObserver::IsTvOutConnected
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// -------------------------------------------------------------------------------------------------
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//
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TBool CMPXVideoAccessoryObserver::IsTvOutConnected()
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{
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    MPX_DEBUG(_L("CMPXVideoAccessoryObserver::IsTvOutConnected(%d)"), iTvOutConnected);
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    return iTvOutConnected;
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}
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// -------------------------------------------------------------------------------------------------
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//   CMPXVideoAccessoryObserver::IsTvOutPlaybackAllowed
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// -------------------------------------------------------------------------------------------------
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//
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TBool CMPXVideoAccessoryObserver::IsTvOutPlaybackAllowed()
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{
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    TBool playAllowed = ( ! iTvOutConnected || iTvOutPlaybackAllowed );
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    MPX_DEBUG(_L("CMPXVideoAccessoryObserver::IsTvOutPlaybackAllowed(%d)"), playAllowed);
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    return playAllowed;
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}
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//  End of File