/*

* Copyright (c) 2008-2009 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:    Monitors the Tv Out Connection

*

*/

/**

 * @internal reviewed 24/08/2007 by D Holland

 */

//  CLASS HEADER

#include "glxtvconnectionmonitor.h"

//  EXTERNAL INCLUDES

//  INTERNAL INCLUDES

#include <glxlog.h>

#include <glxtracer.h>

#include <glxpanic.h>

#include "glxtv.h"

#include <AccPolGenericIdDefinitions.h>

#include <AccPolSubblockNameArray.h>

//-----------------------------------------------------------------------------

// Return new object

//-----------------------------------------------------------------------------

//

CGlxTvConnectionMonitor* CGlxTvConnectionMonitor::NewL(

                               MGlxTvConnectionObserver& aConnectionObserver ) 

    {

    TRACER("CGlxTvConnectionMonitor::NewL");

    CGlxTvConnectionMonitor* self = new (ELeave) 

                CGlxTvConnectionMonitor( aConnectionObserver );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

//-----------------------------------------------------------------------------

// Destructor

//-----------------------------------------------------------------------------

//

CGlxTvConnectionMonitor::~CGlxTvConnectionMonitor()

    {

    TRACER("~CGlxTvConnectionMonitor");

    Cancel();

    iTvAccCon.CloseSubSession();

    iTvAccServer.Disconnect();

    }

//-----------------------------------------------------------------------------

// Default C++ constructor

//-----------------------------------------------------------------------------

//

CGlxTvConnectionMonitor::CGlxTvConnectionMonitor

                           ( MGlxTvConnectionObserver& aConnectionObserver ) 

                            :CActive(EPriorityStandard), 

                             iConnectionObserver ( aConnectionObserver ),

                             iTvOutConnectionState(EFalse),

                             iHDMIConnectionState(EFalse)

    {

    TRACER("CGlxTvConnectionMonitor");

    CActiveScheduler::Add( this );

    }

//-----------------------------------------------------------------------------

// Symbian second phase constructor

//-----------------------------------------------------------------------------

//

void CGlxTvConnectionMonitor::ConstructL()

    {

    TRACER("CGlxTvConnectionMonitor::ConstructL");

    User::LeaveIfError(iTvAccServer.Connect());

	User::LeaveIfError(iTvAccCon.CreateSubSession(iTvAccServer));

	UpdateConnectionStatusL();

	IssueRequest();  

    }

//-----------------------------------------------------------------------------

// From class CActive.

// Receive notification of change in the connection state

//-----------------------------------------------------------------------------

//

void CGlxTvConnectionMonitor::RunL()

    {

    TRACER("CGlxTvConnectionMonitor::RunL");

    // Check for errors

    User::LeaveIfError( iStatus.Int() );

    // Notify observers

    IssueNotificationL();

    // Request the next event

    IssueRequest();  

    }

//-----------------------------------------------------------------------------

// From class CActive.

// DoCancel

//-----------------------------------------------------------------------------

//

void CGlxTvConnectionMonitor::DoCancel()

    {

    TRACER("CGlxTvConnectionMonitor::DoCancel");

    iTvAccCon.CancelGetAccessoryConnectionStatus();

    iTvAccCon.CancelNotifyAccessoryConnectionStatusChanged();

    }

//-----------------------------------------------------------------------------

// From class CActive.

// RunError

//-----------------------------------------------------------------------------

//

TInt CGlxTvConnectionMonitor::RunError(TInt aError)

    {

    GLX_LOG_INFO1("CGlxTvConnectionMonitor::RunError - %d", aError);

    return KErrNone;

    }

//-----------------------------------------------------------------------------

// Is the TV out cable connected

// IsConnected

//-----------------------------------------------------------------------------

//

TBool CGlxTvConnectionMonitor::IsConnected() const

    {

    TRACER("CGlxTvConnectionMonitor::IsConnected");

    GLX_LOG_INFO1("CGlxTvConnectionMonitor::IsConnected iTvOutConnectionState=%d",iTvOutConnectionState);

    return iTvOutConnectionState;

    }

//-----------------------------------------------------------------------------

// Is the TV out cable connected

// IsConnected

//-----------------------------------------------------------------------------

//

TBool CGlxTvConnectionMonitor::IsHDMIConnected() const

    {

    TRACER("CGlxTvConnectionMonitor::IsHDMIConnected");

    GLX_LOG_INFO1("CGlxTvConnectionMonitor::IsHDMIConnected iHDMIConnectionState=%d",iHDMIConnectionState);

    return iHDMIConnectionState;

    }

//-----------------------------------------------------------------------------

// Request accessory server events

//-----------------------------------------------------------------------------

//

void CGlxTvConnectionMonitor::IssueRequest()

    {

    TRACER("CGlxTvConnectionMonitor::IssueRequest");

    if (!IsActive()) // required for testing

        {

        iTvAccCon.NotifyAccessoryConnectionStatusChanged(iStatus,iCurrentAccArray);

        SetActive(); 

        }

    }

//-----------------------------------------------------------------------------

// Sends notification to observers if TV Out is connected

//-----------------------------------------------------------------------------

//

void CGlxTvConnectionMonitor::IssueNotificationL()

    {

    TRACER("CGlxTvConnectionMonitor::IssueNotificationL");

	TBool previousTvState = iTvOutConnectionState;

	TBool previousHDMIState = iHDMIConnectionState;

	// Update the connection status

	UpdateConnectionStatusL();

	// trigger tvstatus change only when there is actually a change the in the connection and not 

	// for spurious events

	if (previousTvState !=iTvOutConnectionState || previousHDMIState != iHDMIConnectionState)

	    {

	    GLX_LOG_INFO("CGlxTvConnectionMonitor::IssueNotificationL - Connection Altered");

	    iConnectionObserver.HandleTvConnectionStatusChangedL();

	    }

	}

//-----------------------------------------------------------------------------

// UpdateConnectionStatusL()

//-----------------------------------------------------------------------------

//

void CGlxTvConnectionMonitor::UpdateConnectionStatusL()

    {

    TRACER("CGlxTvConnectionMonitor::UpdateConnectionStatusL()");

    GLX_LOG_INFO2("CGlxTvConnectionMonitor::UpdateConnectionStatusL previousTvState = %d , previousHDMIState = %d",

            iTvOutConnectionState,iHDMIConnectionState);

    //gets the TV status in to the iCurrentAccArray and haves the Latest Accesory in 0-index

    User::LeaveIfError(iTvAccCon.GetAccessoryConnectionStatus(iCurrentAccArray));

    CAccPolSubblockNameArray* nameArray = CAccPolSubblockNameArray::NewL();

    CleanupStack::PushL(nameArray);

    //  Get the number of currently connected accessories

    //  Loop through each connected accessory looking for

    //  the desired capabilities

    //

    const TInt count = iCurrentAccArray.Count();

    GLX_LOG_INFO1("CGlxTvConnectionMonitor::UpdateConnectionStatusL current count value is %d",count);

    for (TInt index = 0; index <count; index++)

        {

        TAccPolGenericID genId = iCurrentAccArray.GetGenericIDL(index);

        //  Get all supported capabilities for this connected accessory.

        iTvAccCon.GetSubblockNameArrayL(genId, *nameArray);

        //  Check if this connected accessory supports TV-Out capabality.

        GLX_LOG_INFO1("CGlxTvConnectionMonitor::UpdateConnectionStatusL current index value is %d",index);

        if (nameArray->HasName(KAccVideoOut))

            {

            GLX_LOG_INFO("CGlxTvConnectionMonitor::UpdateConnectionStatusL Video Accessory Supported");

            TAccPolNameRecord nameRecord;

            nameRecord.SetNameL(KAccVideoOut);

            TAccValueTypeTInt value;

            iTvAccCon.GetValueL(genId, nameRecord, value);

            if (value.iValue == EAccVideoOutEHDMI)

                {

                GLX_LOG_INFO("CGlxTvConnectionMonitor::UpdateConnectionStatusL HDMI is connected");

                iHDMIConnectionState = ETrue;

                }

            else if (value.iValue == EAccVideoOutCVideo)

                {

                GLX_LOG_INFO("CGlxTvConnectionMonitor::UpdateConnectionStatusL TV is connected");

                iTvOutConnectionState = ETrue;

                }

            }

        }

    CleanupStack::PopAndDestroy(nameArray);

    GLX_LOG_INFO2("CGlxTvConnectionMonitor::UpdateConnectionStatusL CurrentTvState = %d , CurrentHDMIState = %d",

            iTvOutConnectionState,iHDMIConnectionState);

    }