/*

* Copyright (c) 2005-2006 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:  Date publisher

*

*/

#include <StringLoader.h>

#include <avkon.rsg>

#include <AknUtils.h>

#include <aidevstaplgres.rsg>

#include <bacntf.h>

#include <aicontentobserver.h>

#include "aidatepublisher.h"

const TInt KMaxDateStringLength = 100;

// ======== MEMBER FUNCTIONS ========

CAiDatePublisher::CAiDatePublisher()

    {

    }

void CAiDatePublisher::ConstructL()

    {

  	// Create enviroment notifier

    iEnvNotifier = CEnvironmentChangeNotifier::NewL( 

		CActive::EPriorityStandard, TCallBack( HandleCallBackL, this ) );

    iDateText = NULL;

	// Start listening notifications

    iEnvNotifier->Start(); 

    }

CAiDatePublisher* CAiDatePublisher::NewL()

    {

    CAiDatePublisher* self = new( ELeave ) CAiDatePublisher;

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

CAiDatePublisher::~CAiDatePublisher()

    {

    delete iDateText;

    delete iEnvNotifier;

    }

void CAiDatePublisher::ResumeL()

    {

    RefreshDateL();

    }

void CAiDatePublisher::Subscribe( MAiContentObserver& aObserver, 

								    CHsContentPublisher& aExtension,

                                    MAiPublishPrioritizer& /*aPrioritizer*/,

                                    MAiPublisherBroadcaster& /*aBroadcaster*/ )

    {

    iContentObserver = &aObserver;

    iExtension = &aExtension;

    }

void CAiDatePublisher::RefreshL( TBool /*aClean*/ )

    {

    RefreshDateL();

    }

void CAiDatePublisher::RefreshDateL()

    {

    if( !iContentObserver )

        {

        return;

        }

    delete iDateText;

    iDateText = NULL;

    iDateText = ConstructDateStringL();

    if ( iDateText )

        {

        iContentObserver->Publish( *iExtension,

    						EAiDeviceStatusContentDate,

    						*iDateText,

    						0 );

        }

    }

HBufC* CAiDatePublisher::GetDayNameStringLC( TDay aDay, CCoeEnv& aCoeEnv )

    {

	//Create week day string

    TInt wkDayRes = KErrNotFound;

    switch( aDay )

        {

        case EMonday:

            wkDayRes = R_QTN_WEEK_TWO_CHARS_MO;

            break;

        case ETuesday:

            wkDayRes = R_QTN_WEEK_TWO_CHARS_TU;

            break;

        case EWednesday:

            wkDayRes = R_QTN_WEEK_TWO_CHARS_WE;

            break;

        case EThursday:

            wkDayRes = R_QTN_WEEK_TWO_CHARS_TH;

            break;

        case EFriday:

            wkDayRes = R_QTN_WEEK_TWO_CHARS_FR;

            break;

        case ESaturday:

            wkDayRes = R_QTN_WEEK_TWO_CHARS_SA;

            break;

        case ESunday:

            wkDayRes = R_QTN_WEEK_TWO_CHARS_SU;

            break;

        default:

            // invalid weekday fetched

	        User::Leave( KErrNotFound );

        }

    return StringLoader::LoadLC( wkDayRes, &aCoeEnv );

    }

HBufC* CAiDatePublisher::ConstructDateStringL()

    {

    // Construct date string using date format from resource file

    CCoeEnv* coeEnv = CCoeEnv::Static();

    if( !coeEnv )

        {

        User::Leave( KErrNotReady );

        }

    TTime time;

    time.HomeTime();

    HBufC* aiDateString = HBufC::NewLC( KMaxDateStringLength );

    HBufC* aiDateFormatString = StringLoader::LoadLC( R_ACTIVEIDLE_TIME_FORMAT,

    													coeEnv );

    HBufC* dateStringBuf = HBufC::NewLC( KMaxDateStringLength );

    HBufC* dateFormatString = StringLoader::LoadLC( R_QTN_DATE_SHORT_WITH_ZERO,

    												coeEnv );

    TPtr dateString( dateStringBuf->Des() );

    time.FormatL( dateString, *dateFormatString );

    CleanupStack::PopAndDestroy( dateFormatString );

    //now dateString contains string which is formatted using

    //R_QTN_DATE_USUAL_WITH_ZERO

    // To arabic

    AknTextUtils::DisplayTextLanguageSpecificNumberConversion( dateString );

    TPtr aiDateStringPtr = aiDateString->Des();

    TDayNameAbb wkDayAbb = TDayNameAbb();

    wkDayAbb.Set(time.DayNoInWeek());

    //add date to string

    StringLoader::Format( aiDateStringPtr, *aiDateFormatString,	1,dateString );

    //reuse dateString

    dateString.Copy( aiDateStringPtr );

    //add weekday to string

    StringLoader::Format( aiDateStringPtr, dateString, 0, wkDayAbb );

    CleanupStack::PopAndDestroy( dateStringBuf );//dateStringBuf, aiDateFormatString

    CleanupStack::PopAndDestroy( aiDateFormatString );

    CleanupStack::Pop( aiDateString );

    return aiDateString;

    }

TBool CAiDatePublisher::RefreshL( TInt aContentId, TBool /*aClean*/ )

	{

	if( aContentId == EAiDeviceStatusContentDate )

	    {

	    RefreshDateL();

	    return ETrue;

	    }

	return EFalse;

	}

TInt CAiDatePublisher::HandleCallBackL( TAny *aPtr )

	{

	CAiDatePublisher* self = static_cast<CAiDatePublisher*>( aPtr );

	if( self )

	    {

        TInt changes( self->iEnvNotifier->Change() );

        if ( changes & 

        	( EChangesLocale | EChangesMidnightCrossover | EChangesSystemTime ) )

        	{

        	self->RefreshDateL();

        	}	    

	    }    

	return KErrNone;

	}