/*

* 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 <glxpanic.h>

#include "glxtv.h"

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

// Return new object

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

//

CGlxTvConnectionMonitor* CGlxTvConnectionMonitor::NewL(

                               MGlxTvConnectionObserver& aConnectionObserver ) 

    {

    GLX_LOG_INFO("CGlxTvConnectionMonitor::NewL");

    CGlxTvConnectionMonitor* self = new (ELeave) 

                CGlxTvConnectionMonitor( aConnectionObserver );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// Destructor

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

//

CGlxTvConnectionMonitor::~CGlxTvConnectionMonitor()

    {

    GLX_LOG_INFO("~CGlxTvConnectionMonitor");

    Cancel();

    iTvAccServer.Disconnect();

    }

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

// Default C++ constructor

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

//

CGlxTvConnectionMonitor::CGlxTvConnectionMonitor

                           ( MGlxTvConnectionObserver& aConnectionObserver ) 

                            :CActive(EPriorityStandard), 

                             iConnectionObserver ( aConnectionObserver )

    {

    GLX_LOG_INFO("CGlxTvConnectionMonitor");

    CActiveScheduler::Add( this );

    }

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

// Symbian second phase constructor

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

//

void CGlxTvConnectionMonitor::ConstructL()

    {

    GLX_LOG_INFO("CGlxTvConnectionMonitor::ConstructL");

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

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

    User::LeaveIfError( iTvAccMode.GetAccessoryMode( iCurrentAccMode ) );

    iConnectionState = ( iCurrentAccMode.iAccessoryMode == EAccModeTVOut );

    IssueRequest();  

    }

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

// From class CActive.

// Receive notification of change in the connection state

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

//

void CGlxTvConnectionMonitor::RunL()

    {

    GLX_LOG_INFO("CGlxTvConnectionMonitor::RunL");

    // Check for errors

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

    // Notify observers

    IssueNotificationL();

    // Request the next event

    IssueRequest();  

    }

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

// From class CActive.

// DoCancel

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

//

void CGlxTvConnectionMonitor::DoCancel()

    {

    GLX_LOG_INFO("CGlxTvConnectionMonitor::DoCancel");

    iTvAccMode.CancelNotifyAccessoryModeChanged();

    }

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

// 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

    {

    GLX_LOG_INFO("CGlxTvConnectionMonitor::IsConnected");

    return iConnectionState;

    }

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

// Request accessory server events

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

//

void CGlxTvConnectionMonitor::IssueRequest()

    {

    GLX_LOG_INFO("CGlxTvConnectionMonitor::IssueRequest");

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

        {

        iTvAccMode.NotifyAccessoryModeChanged( iStatus, iCurrentAccMode ); 

        SetActive(); 

        }

    }

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

// Sends notification to observers if TV Out is connected

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

//

void CGlxTvConnectionMonitor::IssueNotificationL()

    {

    GLX_LOG_INFO("CGlxTvConnectionMonitor::IssueNotificationL");

    iConnectionState = ( iCurrentAccMode.iAccessoryMode == EAccModeTVOut );

    iConnectionObserver.HandleTvConnectionStatusChangedL();

    }