/*

* Copyright (c) 2003-2006 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: The container is responsible of showing log viewer.

*

*/

// INCLUDE FILES

#include <eikclbd.h>

#include <AknIconArray.h>

#include <aknlists.h>

#include <aknmessagequerydialog.h> //for LOG details message query

#include <vpnmanagementuirsc.rsg>

#include "vpnuiloader.h"

#include "vpnmanagementuilogcontainer.h"

#include "vpnmanagementuidefs.h"

#include "vpnmanagementui.hrh"

#ifdef __SCALABLE_ICONS

#include <AknsUtils.h>

#include <vpnmanagementui.mbg>

#endif //__SCALABLE_ICONS

#ifdef __SERIES60_HELP

#include <csxhelp/vpn.hlp.hrh> // for help context of VPN Management UI

#endif //__SERIES60_HELP

//CONSTANTS

const TInt KVpnLogNumberOfIcons = 3;

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

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

// CVpnManagementUiLogContainer::CVpnManagementUiLogContainer(

// CVpnManagementUiLogView& aParent, CVpnUiLoader& aLoader)

// Constructor with parent

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

//

CVpnManagementUiLogContainer::CVpnManagementUiLogContainer(

    CVpnManagementUiLogView& aParent, CVpnUiLoader& aLoader ) : 

    iParent ( aParent ), iLoader ( aLoader )

    {

    }

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

// CVpnManagementUiLogContainer::~CVpnManagementUiLogContainer()

// Destructor

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

//

CVpnManagementUiLogContainer::~CVpnManagementUiLogContainer()

    {

    if(iEventViewer)

        {

        delete iEventViewer;

        iEventViewer = NULL;

        }

    if(iLogList)

        {

        delete iLogList;

        iLogList = NULL;

        }

	delete iListBox;

    }

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

// CVpnManagementUiLogContainer::ConstructL(

// const TRect& aRect, TInt& aCurrentPosition, TInt& aTopItem)

// EPOC two phased constructor

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

//

void CVpnManagementUiLogContainer::ConstructL(

    const TRect& aRect, TInt& /*aCurrentPosition*/ )

    {

    CreateWindowL();

	CreateListBoxL();

    ShowLogsL();

	SetRect( aRect );

    }

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

// CVpnManagementUiLogContainer::SizeChanged()

// Called by framework when the view size is changed

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

//

void CVpnManagementUiLogContainer::SizeChanged()

    {

    iListBox->SetRect(Rect());

    }

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

// CVpnManagementUiLogContainer::FocusChanged(TDrawNow aDrawNow)

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

//

void CVpnManagementUiLogContainer::FocusChanged(TDrawNow aDrawNow)

	{

	if ( iListBox ) 

		{

		iListBox->SetFocus( IsFocused(), aDrawNow );

		}

	}

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

// CVpnManagementUiLogContainer::HandleResourceChange

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

//

void CVpnManagementUiLogContainer::HandleResourceChange( TInt aType )

    {

    CCoeControl::HandleResourceChange(aType); 

    //Handle change in layout orientation

    if (aType == KEikDynamicLayoutVariantSwitch || aType == KAknsMessageSkinChange )

        {

        iListBox->HandleResourceChange(aType);

		TRect mainPaneRect;

        AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EMainPane, mainPaneRect);

        SetRect(mainPaneRect);

		DrawNow();

		}       

    }	

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

// CVpnManagementUiLogContainer::HandleListBoxEventL(

// CEikListBox* /*aListBox*/, TListBoxEvent aEventType)

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

//

void CVpnManagementUiLogContainer::HandleListBoxEventL(

    CEikListBox* /*aListBox*/, TListBoxEvent aEventType )

	{

    switch(aEventType)

        {

        case EEventEnterKeyPressed: 

        case EEventItemSingleClicked:

            iParent.HandleCommandL(EVpnUiCmdLogDetails);        

            break;

        default:  

            //Do nothing          

            break;

        }        

	}

enum { EListBoxControl, ENumberOfControls };

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

// CVpnManagementUiLogContainer::CountComponentControls() const

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

//

TInt CVpnManagementUiLogContainer::CountComponentControls() const

    {

	// return number of controls inside this container

    return ENumberOfControls; // return nbr of controls inside this container

    }

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

// CVpnManagementUiLogContainer::ComponentControl(TInt aIndex) const

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

//

CCoeControl* CVpnManagementUiLogContainer::ComponentControl(TInt aIndex) const

    {

    switch ( aIndex )

        {

        case 0:

			return iListBox;

        default:

            return NULL;

        }

    }

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

// CVpnManagementUiLogContainer::HandleControlEventL(

//    CCoeControl* /*aControl*/,TCoeEvent /*aEventType*/)

// Cannot be changed to non-leaving function. 

// L-function is required by the class definition, even if empty.

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

//

void CVpnManagementUiLogContainer::HandleControlEventL(

    CCoeControl* /*aControl*/,TCoeEvent /*aEventType*/)

    {

    }

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

// CVpnManagementUiLogContainer::OfferKeyEventL(

// const TKeyEvent& aKeyEvent, TEventCode aType)

// Handles the key events OK button, arrow keys, delete key.

// OK button show VPN log details,

// if list is empty then arrow keys and OK inactive.

// Delete active only if list not empty.

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

//

TKeyResponse CVpnManagementUiLogContainer::OfferKeyEventL(

    const TKeyEvent& aKeyEvent, TEventCode aType)

	{

    TKeyResponse retval = EKeyWasNotConsumed;

	if ( aType==EEventKey )

		{

		if ( (aKeyEvent.iCode == EKeyOK || aKeyEvent.iCode == EKeyEnter) && // select or enter

             iListBox->CurrentItemIndex() > -1) //This is for empty list

            {

	        // Selection key pressed.

            LogDetailsL(iListBox->CurrentItemIndex());

			retval = EKeyWasConsumed;	

			}

        else if ( aKeyEvent.iCode == EKeyUpArrow )

			{

			retval = iListBox->OfferKeyEventL( aKeyEvent, aType );

    		}

		else if ( aKeyEvent.iCode == EKeyDownArrow )

			{

            TEventProperties eventProperties;

            HBufC* eventText = NULL;

            TInt currentPosition = iListBox->CurrentItemIndex();

            if((iEventViewer != NULL) && (iLogList->Count() > 0))

                {

                iEventViewer->GetEventUsingEventNumber(eventText, iLogList->At(iLogList->Count() - 1).iEventNumber, eventProperties);

                delete eventText;

                }

            UpdateListBoxL(currentPosition);

   			retval = iListBox->OfferKeyEventL( aKeyEvent, aType );

			}

        }

	else

		{

		retval = iListBox->OfferKeyEventL( aKeyEvent, aType );

		}

    return retval;

	}

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

// CVpnManagementUiLogContainer::CreateListBoxL()

// Creates listbox, sets empty listbox text.

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

//

void CVpnManagementUiLogContainer::CreateListBoxL()

	{

	iListBox = new( ELeave ) CAknDoubleGraphicStyleListBox;

	iListBox->SetContainerWindowL( *this );

	iListBox->ConstructL( this, EAknListBoxSelectionList ); 

	iListBox->CreateScrollBarFrameL( ETrue );

	iListBox->ScrollBarFrame()->

        SetScrollBarVisibilityL( CEikScrollBarFrame::EOff,CEikScrollBarFrame::EAuto );

	iListBox->SetListBoxObserver(this);

#ifdef __SCALABLE_ICONS

    CArrayPtr< CGulIcon >* icons = new( ELeave ) CAknIconArray( KVpnLogNumberOfIcons );

    CleanupStack::PushL( icons );

    MAknsSkinInstance* skinInstance = AknsUtils::SkinInstance();

    TFileName fileName = GetIconFilenameL();

    icons->AppendL( AknsUtils::CreateGulIconL( skinInstance, 

                                            KAknsIIDQgnPropVpnLogInfo,

                                            fileName, 

                                            EMbmVpnmanagementuiQgn_prop_vpn_log_info, 

                                            EMbmVpnmanagementuiQgn_prop_vpn_log_info_mask ) );

    icons->AppendL( AknsUtils::CreateGulIconL( skinInstance, 

                                            KAknsIIDQgnPropVpnLogWarn,

                                            fileName, 

                                            EMbmVpnmanagementuiQgn_prop_vpn_log_warn, 

                                            EMbmVpnmanagementuiQgn_prop_vpn_log_warn_mask ) );

    icons->AppendL( AknsUtils::CreateGulIconL( skinInstance, 

                                            KAknsIIDQgnPropVpnLogError,

                                            fileName, 

                                            EMbmVpnmanagementuiQgn_prop_vpn_log_error, 

                                            EMbmVpnmanagementuiQgn_prop_vpn_log_error_mask ) );

    iListBox->ItemDrawer()->ColumnData()->SetIconArray( icons );

    CleanupStack::Pop(); // icons

#else

    CAknIconArray* icons = new(ELeave) CAknIconArray(KVpnLogNumberOfIcons);

    icons->ConstructFromResourceL(R_VPN_LOG_ICON_ARRAY);

 	iListBox->ItemDrawer()->ColumnData()->SetIconArray(icons);

#endif //__SCALABLE_ICONS

    EmptyViewTextL();

	}

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

// CVpnManagementUiLogContainer::EmptyViewTextL()

// Reads text from resource to empty log view

// and put text to the listbox.

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

//

void CVpnManagementUiLogContainer::EmptyViewTextL()

    {

    HBufC* stringHolder = StringLoader::LoadLC( R_VPN_LOG_EMPTY );

	iListBox->View()->SetListEmptyTextL( *stringHolder );

	CleanupStack::PopAndDestroy();  // stringHolder

    }

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

// CVpnManagementUiLogContainer::RemoveAllFromListBoxL()

// Removes all from listbox.

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

//

void CVpnManagementUiLogContainer::RemoveAllFromListBoxL()

    {

    MDesCArray* itemList = iListBox->Model()->ItemTextArray();

	CDesCArray* itemArray = (CDesCArray*) itemList;

    itemArray->Reset();

    iListBox->HandleItemRemovalL();

    iListItemCount = 0;

    DrawNow();

    }

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

// CVpnManagementUiLogContainer::DrawListBoxL(TInt aCurrentPosition, TInt aTopItem)

// Draws listbox, fetches graphic icons for markable list

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

//

void CVpnManagementUiLogContainer::DrawListBoxL( 

    TInt aCurrentPosition, TInt aTopItem )

	{

	if (aCurrentPosition >= 0)

		{

		iListBox->SetTopItemIndex( aTopItem );

		iListBox->SetCurrentItemIndex( aCurrentPosition );

		}

	ActivateL();

	DrawNow();

	}

void CVpnManagementUiLogContainer::ShowLogsL() 

    {

    iListItemCount = 0;

    //Create CEventViewer object

    delete iEventViewer;

    iEventViewer = NULL;

    TRAPD(error, iEventViewer = CEventViewer::NewL());

    if (error != KErrNone)

        return;

    delete iLogList;

    iLogList = NULL;

    iLogList = new (ELeave) CArrayFixFlat<TEventProperties>(3);

   	CDesCArrayFlat* itemTextArray = static_cast<CDesCArrayFlat*>(iListBox->Model()->ItemTextArray());

	itemTextArray->Reset();

	iListBox->Reset();

    TEventProperties eventProperties;

    HBufC* eventText = NULL;

    //First item

    TBuf<100> itemName;

    TInt ret = iEventViewer->GetMostRecentEvent(eventText, eventProperties);

    if(ret==KErrNone)

        {

        CleanupStack::PushL(eventText);

        iLogList->AppendL(eventProperties);

        //append index of icon array

        itemName.AppendNum(GetIconArrayIndex(eventProperties.iCategory)); 

        itemName.Append(_L("\t"));

        TPtr eventTextDesc(eventText->Des());

        TInt length = eventTextDesc.Length();

        if(length > KMaxLogListLength)

            {

            eventTextDesc.Delete(KMaxLogListLength, length-KMaxLogListLength);

            }

        itemName.Append(eventTextDesc);

        CleanupStack::PopAndDestroy(); //eventText

        itemName.Append(_L("\t"));

        //Format time stamp for LOG view

        TBuf<2 * KMaxLengthTextDateString + 3> logEntry;

        TimeLogEntryL(logEntry, eventProperties.iTimeStamp);

        itemName.Append(logEntry);

        itemTextArray->AppendL(itemName);

	    iListBox->HandleItemAdditionL();

        iListItemCount++;

        //Get rest of events    

        while (ret==KErrNone)

            {

            TInt currentPosition = iListBox->CurrentItemIndex();

            ret = UpdateListBoxL(currentPosition);

            }

        }

    }

TInt CVpnManagementUiLogContainer::GetIconArrayIndex(TLogCategory2& aCategory)

    {

    //index of icon array

    if (aCategory == ELogInfo)

        return 0;     //index of icon array

    else if (aCategory == ELogWarning)

        return 1;    //index of icon array

    else if (aCategory == ELogError)

        return 2;    //index of icon array

    else

        return 2;

    }

void CVpnManagementUiLogContainer::TimeLogEntryL(TDes& aDes, TTime aTime)

    {

     // Date

    HBufC* dateFormat = StringLoader::LoadLC(R_QTN_DATE_USUAL_WITH_ZERO);

    TBuf<KMaxLengthTextDateString> dateString;

    aTime.FormatL(dateString, *dateFormat);

    AknTextUtils::DisplayTextLanguageSpecificNumberConversion(dateString);

    CleanupStack::PopAndDestroy(); //dateFormat

    // Time

    dateFormat = StringLoader::LoadLC(R_QTN_TIME_USUAL_WITH_ZERO);

    TBuf<KMaxLengthTextDateString> timeString;

    aTime.FormatL(timeString, *dateFormat);

    AknTextUtils::DisplayTextLanguageSpecificNumberConversion(timeString);

    CleanupStack::PopAndDestroy(); //dateFormat

//    TBuf<KMaxShortDateFormatSpec*2> dateBuffer; // KMaxShortDateFormatSpec is defined in e32std.h

//    TBuf<KMaxTimeFormatSpec*2> timeBuffer; // KMaxTimeFormatSpec is defined in e32std.h

    TBuf<2 * KMaxLengthTextDateString + 3> logEntry;

    TTime now;

	now.HomeTime();

    if ( (now.YearsFrom( aTime ).Int() > 0) ||

        (aTime.DayNoInYear() < now.DayNoInYear()) )

        {

        logEntry.Append(dateString);

        logEntry.Append(KVpnManagementUiSpaceHyphenSpace);

        }

    logEntry.Append(timeString);

    aDes = logEntry;

    }

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

// CVpnManagementUiLogContainer::UpdateListBoxL(TInt& aCurrentPosition)

// 

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

//

TInt CVpnManagementUiLogContainer::UpdateListBoxL(TInt& /*aCurrentPosition*/)

	{ 

	MDesCArray* itemList = iListBox->Model()->ItemTextArray();

	CDesCArray* itemArray = ( CDesCArray* )itemList;

    TEventProperties eventProperties;

    HBufC* eventText = NULL;

    TBuf<100> itemName;

    //next item

    if(iEventViewer != NULL)

        {

        TInt ret = iEventViewer->GetPreviousEvent(eventText, eventProperties);

        if(ret==KErrNone)

            {

            CleanupStack::PushL(eventText);

            iLogList->AppendL(eventProperties);

            //append index of icon array       

            itemName.AppendNum(GetIconArrayIndex(eventProperties.iCategory)); 

            itemName.Append(_L("\t"));

            TPtr eventTextDesc(eventText->Des());

            TInt length = eventTextDesc.Length();

            if(length > KMaxLogListLength)

                eventTextDesc.Delete(KMaxLogListLength, length-KMaxLogListLength);

            itemName.Append(eventTextDesc);

            CleanupStack::PopAndDestroy(); //eventText

            itemName.Append(_L("\t"));

            //Format time stamp for LOG view

            TBuf<2 * KMaxLengthTextDateString + 3> logEntry;

            TimeLogEntryL(logEntry, eventProperties.iTimeStamp);

            itemName.Append(logEntry);

            itemArray->AppendL(itemName);

            iListBox->HandleItemAdditionL();

            iListItemCount++;

            }

        iParent.SetMiddleSoftKeyL(ETrue);

        return ret;

        }

    iParent.SetMiddleSoftKeyL(ETrue);

    return KErrNotFound;

    }

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

// CVpnManagementUiLogContainer::LogDetailsL()

// Creates the log details message query

// Appends strings from resource and eventviewer to one

// message body text and displays it.

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

//

void CVpnManagementUiLogContainer::LogDetailsL(TInt aIndex)

    {

    TEventProperties eventProperties;

    eventProperties = iLogList->At(aIndex);