/*

* Copyright (c) 2003-2009 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: Policy view container

*

*/

#include <eikclbd.h>

#include <AknIconArray.h>

#include <AknQueryDialog.h>

#include <aknnotewrappers.h>

#include <sysutil.h>

#include <ErrorUI.h>

#include <vpnmanagementuirsc.rsg>

#include "vpnuiloader.h"

#include "vpnmanagementuipolicycontainer.h"

#include "vpnmanagementui.hrh"

#ifdef __SERIES60_HELP

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

#endif //__SERIES60_HELP

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

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

// CVpnManagementUiPolicyContainer::CVpnManagementUiPolicyContainer(

// CVpnManagementUiPolicyView& aParent, CVpnUiLoader& aLoader)

// Constructor with parent

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

//

CVpnManagementUiPolicyContainer::CVpnManagementUiPolicyContainer(

    CVpnManagementUiPolicyView& aParent, CVpnUiLoader& aLoader ) : 

    iParent ( aParent ), iLoader ( aLoader )

    {

    }

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

// CVpnManagementUiPolicyContainer::~CVpnManagementUiPolicyContainer()

// Destructor

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

//

CVpnManagementUiPolicyContainer::~CVpnManagementUiPolicyContainer()

    {

	delete iListBox;

    }

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

// CVpnManagementUiPolicyContainer::ConstructL(

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

// EPOC two phased constructor

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

//

void CVpnManagementUiPolicyContainer::ConstructL(

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

    {

	CreateWindowL();

    CreateListBoxL();

    //Initialization

    ShowPoliciesL();

	SetRect( aRect );

    }

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

// CVpnManagementUiPolicyContainer::ActivateL()

// called after the dialog is shown

// used to handle empty list - query

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

//

void CVpnManagementUiPolicyContainer::ActivateL()

    {

    CCoeControl::ActivateL();

    }

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

// CVpnManagementUiPolicyContainer::SizeChanged()

// Called by framework when the view size is changed

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

//

void CVpnManagementUiPolicyContainer::SizeChanged()

    {

    iListBox->SetRect(Rect());

    }

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

// CVpnManagementUiPolicyContainer::FocusChanged(TDrawNow aDrawNow)

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

//

void CVpnManagementUiPolicyContainer::FocusChanged(TDrawNow aDrawNow)

	{

	if ( iListBox ) 

		{

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

		}

	}

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

// CVpnManagementUiPolicyContainer::HandleResourceChangeL

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

//

void CVpnManagementUiPolicyContainer::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();

		}

    }    

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

// CVpnManagementUiPolicyContainer::HandleListBoxEventL(

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

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

//

void CVpnManagementUiPolicyContainer::HandleListBoxEventL(

    CEikListBox* /*aListBox*/, TListBoxEvent aEventType )

	{

    switch(aEventType)

        {

        case EEventEnterKeyPressed: 

        case EEventItemSingleClicked:

            iParent.HandleCommandL(EVpnUiCmdPolicyDetails);        

            break;

        default:  

            //Do nothing          

            break;

        }        

	}

enum { EListBoxControl, ENumberOfControls };

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

// CVpnManagementUiPolicyContainer::CountComponentControls() const

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

//

TInt CVpnManagementUiPolicyContainer::CountComponentControls() const

    {

	// return number of controls inside this container

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

    }

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

// CVpnManagementUiPolicyContainer::ComponentControl(TInt aIndex) const

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

//

CCoeControl* CVpnManagementUiPolicyContainer::ComponentControl(TInt aIndex) const

    {

    switch ( aIndex )

        {

        case 0:

			return iListBox;

        default:

            return NULL;

        }

    }

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

// CVpnManagementUiPolicyContainer::HandleControlEventL(

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

// Cannot be changed to non-leaving function. 

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

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

//

void CVpnManagementUiPolicyContainer::HandleControlEventL(

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

    {

    }

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

// CVpnManagementUiPolicyContainer::OfferKeyEventL(

// const TKeyEvent& aKeyEvent, TEventCode aType)

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

// OK button functionality is different depending on the number of marked items

// in the list; zero marked -> show details view, one or more marked -> show

// OKOptions list, list empty -> OK inactive.

// Delete active only if list not empty.

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

//

TKeyResponse CVpnManagementUiPolicyContainer::OfferKeyEventL(

    const TKeyEvent& aKeyEvent, TEventCode aType)

	{

    // If operation is currenly onway, do not continue.

	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.

            iParent.PolicyDetailsL(iListBox->CurrentItemIndex());

			retval = EKeyWasConsumed;	

			}

		else if ( aKeyEvent.iCode == EKeyDelete 

                  || aKeyEvent.iCode == EKeyBackspace )

			{

			if ( iListBox->CurrentItemIndex() > -1 )

				{

				iParent.HandleCommandL( EVpnUiCmdDeletePolicy );

				retval = EKeyWasConsumed; 

				}

			}

		else

			{

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

			}

		}

	else

		{

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

		}

    return retval;

	}

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

// CVpnManagementUiPolicyContainer::CreateListBoxL()

// Creates listbox, sets empty listbox text.

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

//

void CVpnManagementUiPolicyContainer::CreateListBoxL()

	{

	iListBox = new( ELeave ) CAknSingleStyleListBox;

	iListBox->SetContainerWindowL( *this );

	iListBox->ConstructL( this, EAknListBoxMarkableList ); 

	iListBox->CreateScrollBarFrameL( ETrue );

	iListBox->ScrollBarFrame()->

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

	iListBox->SetListBoxObserver(this);

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

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

	CleanupStack::PopAndDestroy();  // stringHolder

	}

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

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

// Draws listbox, fetches graphic icons for markable list

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

//

void CVpnManagementUiPolicyContainer::DrawListBoxL( 

    TInt aCurrentPosition, TInt aTopItem )

	{

	if (aCurrentPosition >= 0)

		{

		iListBox->SetTopItemIndex( aTopItem );

		iListBox->SetCurrentItemIndex( aCurrentPosition );

		}

	ActivateL();

	DrawNow();

	}

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

// CVpnManagementUiPolicyContainer::UpdateListBoxL(TInt& aCurrentPosition)

// Updates listbox after deletion, sets No VPN policies text 

// if deleted policy was a last one.

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

//

void CVpnManagementUiPolicyContainer::UpdateListBoxL( TInt& aCurrentPosition )

	{ 

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

	CDesCArray* itemArray = ( CDesCArray* )itemList;

    itemArray->Delete(aCurrentPosition);

    itemArray->Compress();

    iListBox->HandleItemRemovalL();

    if(aCurrentPosition > 0)

        {

        iListBox->SetCurrentItemIndexAndDraw(aCurrentPosition-1);

        }

    if(aCurrentPosition == 0 )

        {

        if (iListItemCount > 1 )

            {

            iListBox->SetCurrentItemIndexAndDraw(aCurrentPosition);

            }

        else

            {

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

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

	        CleanupStack::PopAndDestroy();  // stringHolder

            }

        }

    iListItemCount = iListItemCount -1;

    iParent.SetMiddleSoftKeyL(ETrue);

    DrawNow();

	}

void CVpnManagementUiPolicyContainer::ShowPoliciesL() 

    {

    CArrayFixFlat<TVpnPolicyInfo>* policyList = 

        iLoader.VpnApiWrapperL().PolicyListL();

   	CDesCArrayFlat* itemTextArray = 

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

	itemTextArray->Reset();

	iListBox->Reset();

    iListItemCount = policyList->Count();

    for (TInt i = 0; i < iListItemCount; ++i)

        {

        TBuf<KMaxNameLength+2> policyName;

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

        policyName.Append(policyList->At(i).iName);

        itemTextArray->AppendL(policyName);

        }

	iListBox->HandleItemAdditionL();

    }