/*

* 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),

			iHeadSetConnectionState(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;

	TBool previousHeadSetState = iHeadSetConnectionState;

	TTvChangeType changeType = EDisconnected;

	// 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)

		{

		changeType = iTvOutConnectionState == EFalse ? EDisconnected : ETvConnectionChanged;

		GLX_LOG_INFO1("CGlxTvConnectionMonitor::IssueNotificationL - TVOut Connection Changed %d", changeType);

		iConnectionObserver.HandleTvConnectionStatusChangedL(changeType);	

		}

	else if (previousHDMIState != iHDMIConnectionState)

		{

		changeType = iHDMIConnectionState == EFalse ? EDisconnected : ETvConnectionChanged;

		GLX_LOG_INFO1("CGlxTvConnectionMonitor::IssueNotificationL - HDMI Connection Changed %d", changeType);

		iConnectionObserver.HandleTvConnectionStatusChangedL(changeType);	

		}

	else if (previousHeadSetState != iHeadSetConnectionState)

		{

		changeType = iHeadSetConnectionState == EFalse ? EDisconnected : ETvConnectionChanged;

		GLX_LOG_INFO1("CGlxTvConnectionMonitor::IssueNotificationL - Headset Connection Changed %d", changeType);

		iConnectionObserver.HandleTvConnectionStatusChangedL(changeType);	

		}

	}

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

// UpdateConnectionStatusL()

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

//

void CGlxTvConnectionMonitor::UpdateConnectionStatusL()

    {

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

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

			iTvOutConnectionState,iHDMIConnectionState);

	// reset the states

	iHDMIConnectionState = EFalse;

	iTvOutConnectionState = EFalse;

	iHeadSetConnectionState = EFalse;

	//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++)

		{

		const TAccPolGenericID genId = iCurrentAccArray.GetGenericIDL(index);

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

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

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

		TAccPolNameRecord nameRecord;

		nameRecord.SetNameL(KAccVideoOut);

		if (genId.DeviceTypeCaps(KDTAVDevice) && genId.PhysicalConnectionCaps(

				KPCHDMI))

			{

			TAccValueTypeTInt value;

			TInt err = iTvAccCon.GetValueL(genId, nameRecord, value);

			if (err == KErrNone)

				{

				if (value.iValue == EAccVideoOutEHDMI)

					{

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

					iHDMIConnectionState = ETrue;

					}

				}

			}

		else if (genId.DeviceTypeCaps(KDTAVDevice)

				&& genId.PhysicalConnectionCaps(KPCWired))

			{

			TAccValueTypeTInt value;

			TInt err = iTvAccCon.GetValueL(genId, nameRecord, value);

			if (err == KErrNone)

				{

				if (value.iValue == EAccVideoOutCVideo)

					{

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

					iTvOutConnectionState = ETrue;

					}

				}

			}

		else if (genId.DeviceTypeCaps(KDTHeadset)

				&& genId.PhysicalConnectionCaps(KPCWired))

			{

			GLX_LOG_INFO("CGlxTvConnectionMonitor::UpdateConnectionStatusL HeadSet connect");

			iHeadSetConnectionState = ETrue;

			}

		}

	CleanupStack::PopAndDestroy(nameArray);

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

			iTvOutConnectionState,iHDMIConnectionState);

	}