/*

* Copyright (c) 2002-2006 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:  This is a base class for Selector implementation

*

*/

// INCLUDE FILES

#include <avkon.mbg>

#include <AknsConstants.h>

#include <aknlists.h>

#include <eikclbd.h>

#include <AknIconArray.h>

#include <StringLoader.h>

#include <landmarks.rsg>

#include <aknsfld.h>

#include <aknlayout.cdl.h>

#include "LmkConsts.h"

#include "CLmkSelectorIconMgr.h"

#include "MLmkListMemento.h"

#include "CLmkUiUtils.h"

#include "CLmkSingleGraphicLBModel.h"

#include "CLmkDoubleGraphicLBModel.h"

#include "CLmkAppSelectorImplBase.h"

#include "MLmkMskObserver.h"

#include "CLmkLmItemListProvider.h"

#include <lmkerrors.h>

#include <lmkui.rsg>

const TInt KTextLimit( 40 );

_LIT(KFetchingData, " ");

#if defined(_DEBUG)

// CONSTANTS

/// Unnamed namespace for local definitions

namespace {

_LIT( KPanicMsg, "CLmkAppSelectorImplBase" );

void Panic( TPanicCode aReason )

    {

    User::Panic( KPanicMsg, aReason );

    }

}  // namespace

#endif

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

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

// CLmkAppSelectorImplBase::CLmkAppSelectorImplBase

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

CLmkAppSelectorImplBase::CLmkAppSelectorImplBase(

    CPosLandmarkDatabase& aDb,

    TBool aFindBox )

    : CLmkSelectorImplBase( aDb ),

      iFindBox( aFindBox )

    {

    }

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

// CLmkAppSelectorImplBase::BaseConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CLmkAppSelectorImplBase::BaseConstructL()

    {

    CLmkSelectorImplBase::BaseConstructL();

    }

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

// CLmkAppSelectorImplBase::~CLmkAppSelectorImplBase

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

//

CLmkAppSelectorImplBase::~CLmkAppSelectorImplBase()

    {

    delete iListBox;

    }

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

// CLmkAppSelectorImplBase::StoreMemento

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

//

EXPORT_C void CLmkAppSelectorImplBase::StoreMemento()

    {

    __ASSERT_DEBUG( iListBox && iListProvider, Panic( KLmkPanicNullMember ) );

    Store( *iListBox, *iListProvider, iFindBox );

    }

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

// CLmkAppSelectorImplBase::RestoreMemento

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

//

EXPORT_C void CLmkAppSelectorImplBase::RestoreMemento()

    {

    __ASSERT_DEBUG( iListBox && iListProvider, Panic( KLmkPanicNullMember ) );

    Restore( *iListBox, *iListProvider, iFindBox );

    }

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

// CLmkAppSelectorImplBase::ListVisibleItemCount

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

//

TInt CLmkAppSelectorImplBase::ListVisibleItemCount()

    {

    __ASSERT_DEBUG( iListBox, Panic( KLmkPanicNullMember ) );

    return iListBox->Model()->NumberOfItems();

    }

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

// CLmkAppSelectorImplBase::ListMarkedItemCountL

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

//

TInt CLmkAppSelectorImplBase::ListMarkedItemCountL()

    {

    __ASSERT_DEBUG( iListBox, Panic( KLmkPanicNullMember ) );

    const CArrayFix<TInt>* markedIndexes = NULL;

    if ( iFindBox )

        {

        CAknFilteredTextListBoxModel* model =

            static_cast<CAknFilteredTextListBoxModel*>( iListBox->Model() );

        model->Filter()->UpdateSelectionIndexesL();

        markedIndexes = model->Filter()->SelectionIndexes();

        }

    else

        {

        markedIndexes = iListBox->SelectionIndexes();

        }

    return markedIndexes->Count();

    }

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

// CLmkAppSelectorImplBase::CreateListBoxL

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

//

CEikTextListBox& CLmkAppSelectorImplBase::CreateListBoxL(

    CCoeControl* aParent,

    TInt aControlType,

    TInt aFlags,

    TInt aEmptyLBPrimResource,TInt aEmptyLBSecResource )

    {

    if ( iListBox )

        {

        delete iListBox;

        iListBox = NULL;

        }

    // For maintaining empty listbox resource

    iEmptyLBPrimResource = aEmptyLBPrimResource;

    iEmptyLBSecResource = aEmptyLBSecResource;

    TBool isFormattedCellListBox = EFalse;

    switch ( aControlType )

        {

        case EAknCtSingleGraphicListBox:

            {

            iListBox = new( ELeave ) CAknSingleGraphicStyleListBox;

            break;

            }

        case EAknCtDoubleGraphicListBox:

            {

            iListBox = new( ELeave ) CAknDoubleGraphicStyleListBox;

            isFormattedCellListBox = ETrue;

            break;

            }

        default:

            {

            User::Leave( KErrNotSupported );

            break;

            }

        }

    iListBox->SetMopParent(aParent);

    iListBox->SetParent(aParent);

    iListBox->ConstructL( aParent, aFlags );

	HBufC* textForFetchingData;

	textForFetchingData = HBufC::NewL(20);

	CleanupStack::PushL(textForFetchingData);  // textForFetchingData

	*textForFetchingData = KFetchingData;

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

    CleanupStack::PopAndDestroy();  // textForFetchingData.

    // create icon array & icons

    CAknIconArray* icons = SetupIconMgrLC();

	TFileName* iconFile = CLmkUiUtils::AvkonIconFileLC();

    iIconMgr->SetIconAtIndexZeroL( *iconFile,

                                   KAknsIIDQgnIndiMarkedAdd,

                                   EMbmAvkonQgn_indi_marked_add,

                                   EMbmAvkonQgn_indi_marked_add_mask );

    if ( isFormattedCellListBox )

	    {

	    ( static_cast<CEikFormattedCellListBox*>( iListBox ) )

            ->ItemDrawer()->FormattedCellData()->SetIconArray( icons );

         ((CEikFormattedCellListBox*)iListBox)->ItemDrawer()->FormattedCellData()

		            ->EnableMarqueeL( ETrue );

	    }

    else

	    {

	    ( static_cast<CEikColumnListBox*>( iListBox ) )

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

          ((CEikColumnListBox*)iListBox)->ItemDrawer()->ColumnData()->EnableMarqueeL( ETrue );

	    }

	CleanupStack::PopAndDestroy(); // iconFile

    CleanupStack::Pop( icons ); // ownership was transferred

    // create listbox model for listbox

    CreateListBoxModelL( *iListBox, aControlType, *iListProvider );

    return *iListBox;

    }

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

// CLmkAppSelectorImplBase::HandleListProviderEvent

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

//

void CLmkAppSelectorImplBase::HandleListProviderEvent(

    TLmkListProviderEventType aEvent )

    {

    if( !iListBox )

        return;

    if ( aEvent == ELmkEventItemAdditionComplete )

    	{

        TRAPD( error, iListBox->HandleItemAdditionL() );

        if ( error != KErrNone )

            {

            iListBox->Reset();

            iListBox->DrawNow();

            }

    	return;

    	}

    if ( aEvent == ELmkEventListReady || aEvent == ELmkEventFindListReady )

        {

        TBool handled( EFalse );

        TRAPD( error, handled = HandleEventListReadyL() );

        if ( !handled || error != KErrNone )

            {

            //CLmkLmItemListProvider& lstpr = static_cast<CLmkLmItemListProvider&>( *iListProvider );

            //TInt currentItemIndex = lstpr.SelectedIndex(iNewLmkItemId);	    //iListBox->CurrentItemIndex();

            TInt currentItemIndex = iListBox->CurrentItemIndex();

            TRAP( error, iListBox->HandleItemAdditionL() );

			if( currentItemIndex >= 0 && currentItemIndex < iListBox->Model()->NumberOfItems() )

				iListBox->SetCurrentItemIndex(currentItemIndex);

            if ( error != KErrNone )

                {

                iListBox->DrawNow();

                }

            }

        }

    TInt count = static_cast<CTextListBoxModel*>(iListBox->Model())->ItemTextArray()->MdcaCount();

    if( count == 0 )

        {

        TRAPD( error, MakeEmptyTextListBoxL( *iListBox, iEmptyLBPrimResource,iEmptyLBSecResource ));

        if( error != KErrNone )

            {

            return;

            }

        }

    //Enable Find box only if at least one item is there in the list box

	if( count )

		{

		if( aEvent != ELmkEventFindListReady )

			{

			TRAP_IGNORE( ShowFindBoxL( ETrue ) );

			}

		CLmkSelectorImplBase::HandleListProviderEvent( aEvent );

		}

    else

	    {

	    if ( aEvent == ELmkEventFindListReady )

		    {

		    TRAPD( error, MakeEmptyTextListBoxL( *iListBox, iEmptyLBPrimResource,iEmptyLBSecResource, ETrue ));

		    if( error != KErrNone )

		    	{

		        return;

		        }

		    }

		else

			{

	        TRAPD( error, MakeEmptyTextListBoxL( *iListBox, iEmptyLBPrimResource,iEmptyLBSecResource ));

	        if( error != KErrNone )

	            {

	            return;

	            }

			TRAP_IGNORE( ShowFindBoxL( EFalse ) );

			}

	    }

	if(iMskObserver)

		{

		TRAP_IGNORE(iMskObserver->UpdateMskContainerL());

		}

    }

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

// CLmkAppSelectorImplBase::HandleListProviderError

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

//

void CLmkAppSelectorImplBase::HandleListProviderError( TInt /*aError*/ )

    {

    if ( iListBox )

        {

        iListBox->Reset();

        TRAPD( error, iListBox->HandleItemAdditionL() );

        if ( error != KErrNone )

            {

            iListBox->DrawNow();

            }

        }

    }

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

// CLmkAppSelectorImplBase::MakeEmptyTextListBoxL

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

//

 void CLmkAppSelectorImplBase::MakeEmptyTextListBoxL(

    CEikTextListBox& aListBox,

    TInt aResourcePrimText ,TInt aResourceSecText, TBool aRequestFromFindBox ) const

    {

    _LIT( KNChar,"\n" );

    if (aRequestFromFindBox)

	    {

	    HBufC* text1 = StringLoader::LoadLC( R_LMK_EMPTY_NO_MATCH, const_cast<CEikonEnv *>( iEnv ));

		TPtr ptr1 = text1->Des();

		aListBox.View()->SetListEmptyTextL( ptr1 );

		CleanupStack::PopAndDestroy(text1);

	    }

    else

	    {

		HBufC* text1 = StringLoader::LoadLC( aResourcePrimText, const_cast<CEikonEnv *>( iEnv ));

		HBufC* text2 = StringLoader::LoadLC( aResourceSecText, const_cast<CEikonEnv *>( iEnv ));

		TPtr ptr1 = text1->Des();

		TPtr ptr2 = text2->Des();

		HBufC* buffer = HBufC::NewLC(text1->Length() + text2->Length() + 2);

		TPtr textFromResourceFile = buffer->Des();

    	textFromResourceFile.Copy(ptr1);

    	textFromResourceFile.Append(KNChar);

    	textFromResourceFile.Append(ptr2);

 		aListBox.View()->SetListEmptyTextL( textFromResourceFile );

		CleanupStack::PopAndDestroy(3);//buffer,text2,text1

	    }

    }

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

// CLmkAppSelectorImplBase::CreateListBoxModelL

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

//

void CLmkAppSelectorImplBase::CreateListBoxModelL(

    CEikTextListBox& aListBox,

    TInt aControlType,

    CLmkListProviderBase& aProvider ) const

    {

    CLmkSelectorLBModelBase* lbModel = NULL;

    // create listbox model, pass ownership

    switch( aControlType )

        {

        case EAknCtSingleGraphicListBox:

            {

            lbModel = CLmkSingleGraphicLBModel::NewL( aProvider );

            break;

            }

        case EAknCtDoubleGraphicListBox:

            {

            lbModel = CLmkDoubleGraphicLBModel::NewL( aProvider );

            break;

            }

        default:

            {

            User::Leave( KErrNotSupported );

            break;

            }

        }

    aListBox.Model()->SetItemTextArray( lbModel );

    aListBox.Model()->SetOwnershipType( ELbmOwnsItemArray );

    }

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

// CLmkAppSelectorImplBase::HandleEventListReadyL()

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

//

TBool CLmkAppSelectorImplBase::HandleEventListReadyL()

    {

    // default implementation

    return EFalse;

    }

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

// CLmkAppSelectorImplBase::CreateFindBoxL()

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

//

EXPORT_C CAknSearchField* CLmkAppSelectorImplBase::CreateFindBoxL(

                                            const CCoeControl &aParent)

	{

	CAknFilteredTextListBoxModel* model =

	static_cast<CAknFilteredTextListBoxModel*> ( iListBox->Model() );

	iSearchBox =

	CAknSearchField::NewL( aParent, CAknSearchField::ESearch, NULL, KTextLimit );

	// Creates CAknListBoxFilterItems object.

	model->CreateFilterL( iListBox, iSearchBox );

#ifdef RD_SCALABLE_UI_V2

	iFilter = model->Filter();

	iSearchBox->SetObserver(this);

#endif// RD_SCALABLE_UI_V2

	iSearchBox->SetFocus( EFalse );

	iSearchBox->MakeVisible( EFalse );     //by defult disable the find box

	return iSearchBox;

	}

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

// CLmkAppSelectorImplBase::ShowFindBoxL()

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

//

void CLmkAppSelectorImplBase::ShowFindBoxL( TBool aVisible )

	{

	const TRect rect(iListBox->Parent()->Rect());

	if (iSearchBox)

		{

	//	iSearchBox->ResetL();

		iSearchBox->SetFocus(aVisible);

		iSearchBox->MakeVisible(aVisible);

		static_cast<CAknColumnListBoxView*>

		(iListBox->View())->SetFindEmptyListState(aVisible);

		if (aVisible && iListBox && iSearchBox)

			{

			AknLayoutUtils::LayoutControl(iListBox, rect,

			AKN_LAYOUT_WINDOW_list_gen_pane(1));

			AknLayoutUtils::LayoutControl(iSearchBox, rect,

			AKN_LAYOUT_WINDOW_find_pane);

			if (iSearchBox->IsVisible() && iListBox->IsVisible())

				{

				// The correct line position to use is 2, which corresponds

				// EABColumn in Avkon (not a public enumeration,

				// hence hard-coding used here)

				const TInt KSeparatorLinePos = 2;

				iSearchBox->SetLinePos(KSeparatorLinePos);

				}

			}

		else if (iListBox)

			{

			AknLayoutUtils::LayoutControl(iListBox, rect,

			AKN_LAYOUT_WINDOW_list_gen_pane(0));

			}

		iSearchBox->DrawDeferred();

		}

	if ( !aVisible )

		{

		iListBox->SetRect(rect);

		iListBox->DrawDeferred();

		}

	}

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

// CLmkAppSelectorImplBase::HandleScreenSizeChange()

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

//

void CLmkAppSelectorImplBase::HandleScreenSizeChange()

    {

    // Dummy implementation in base class.

	}

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

// CLmkAppLmSelectorImpl::AttachToAIWMenuL()

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

//

void CLmkAppSelectorImplBase::AttachToAIWMenuL(

		TInt /*aMenuResourceId*/,

		TInt /*aInterestResourceId*/)

	{

	 // Dummy function

	}

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

// CLmkAppSelectorImplBase::AttachInterestL()

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

//

void CLmkAppSelectorImplBase::AttachInterestL (

		TInt /*aInterestResourceId*/)

	{

	// Dummy function

	}

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

// CLmkAppLmSelectorImpl::InitializeMenuPaneL()

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

//

void CLmkAppSelectorImplBase::InitializeMenuPaneL(

		CEikMenuPane& /*aMenuPane */,

		TInt /* aMenuResourceId */)

	{

	// Dummy function

	}

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

// CLmkAppLmSelectorImpl::ExecuteAIWCallCmdL()

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

//

void CLmkAppSelectorImplBase::ExecuteAIWCallCmdL(

		 TInt /*aCommandId*/ )

	{

	// Dummy function

	}

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

// CLmkAppLmSelectorImpl::IsThisLandmarkFieldDefined