/*

* 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:  ?Description

*

*/

#include <eikbtgpc.h>   // CEikButtonGroupContainer

#include <eiklbv.h>

#include <aknenv.h>

#include <aknPopupHeadingPane.h>

#include <eiklabel.h>

#include <avkon.rsg>

#include <AknTasHook.h> // for testability hooks

#include "CAknCommonDialogsPopupList.h"

#include "MAknCommonDialogsEventObserver.h"

#include "CAknCommonDialogsBase.h"  // TReturnKey

#include <eiklbi.h>

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

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

// CAknCommonDialogsPopupList::CAknCommonDialogsPopupList

//

//

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

//

CAknCommonDialogsPopupList::CAknCommonDialogsPopupList(

    MAknCommonDialogsEventObserver& aObserver, TBool& aIsEndKeyPress  )

    :   iObserver( aObserver ), iEndKey( aIsEndKeyPress )

    {

    }

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

// CAknCommonDialogsPopupList::ConstructL

//

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

//

void CAknCommonDialogsPopupList::ConstructL(

    CEikListBox* aListBox,

    AknPopupLayouts::TAknPopupLayouts aType )

    {

    CAknPopupList::ConstructL( aListBox, R_AVKON_SOFTKEYS_OK_CANCEL__OK, aType );

    }

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

// CAknCommonDialogsPopupList::NewL

//

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

//

CAknCommonDialogsPopupList* CAknCommonDialogsPopupList::NewL(

    MAknCommonDialogsEventObserver& aObserver,

    CEikListBox* aListBox,

    AknPopupLayouts::TAknPopupLayouts aType,

    TBool& aIsEndKeyPress )

    {

    CAknCommonDialogsPopupList* self = new( ELeave )

        CAknCommonDialogsPopupList( aObserver, aIsEndKeyPress );

    CleanupStack::PushL( self );

    self->ConstructL( aListBox, aType );

    CleanupStack::Pop();

    AKNTASHOOK_ADDL( self, "CAknCommonDialogsPopupList" );

    return self;

    }

// Destructor

CAknCommonDialogsPopupList::~CAknCommonDialogsPopupList()

    {

    AKNTASHOOK_REMOVE();

    }

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

// CAknCommonDialogsPopupList::ProcessCommandL

//

//

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

//

void CAknCommonDialogsPopupList::ProcessCommandL( TInt aCommandId )

    {

    switch( aCommandId )

        {

        // Fall through: All softkeys which can be received from the popup list

        case EAknSoftkeyOk:

        case EAknSoftkeyCancel:

        case EAknSoftkeyBack:

            {

            MAknCommonDialogsEventObserver::TEvent event(

                aCommandId == EAknSoftkeyOk?

                MAknCommonDialogsEventObserver::ELeftSoftkeyPress :

                MAknCommonDialogsEventObserver::ERightSoftkeyPress );

            if( !ReportPopupEventL( event ) )

                {

                // Returned false, do not allow exit from popup, return

                return;

                }

            break;

            }

        default:

            {

            break;

            }

        }

    CAknPopupList::ProcessCommandL( aCommandId );

    }

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

// CAknCommonDialogsPopupList::OfferKeyEventL

//

//

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

//

TKeyResponse CAknCommonDialogsPopupList::OfferKeyEventL(

    const TKeyEvent& aKeyEvent, TEventCode aType )

    {

    if( aType == EEventKey )

        {

        switch( aKeyEvent.iCode )

            {

            case EKeyUpArrow:

            case EKeyDownArrow:

                {

                // Get current item index

                TInt oldIndex( iListBox->CurrentItemIndex() );

                // Call OfferKeyEventL

                TKeyResponse response(

                    iListBox->OfferKeyEventL( aKeyEvent, aType ) );

                // Get new item index

                TInt newIndex( iListBox->CurrentItemIndex() );

                // Compare new and old index

                if( oldIndex != newIndex )

                    {

                    // Notify focus change only if focus actually changes

                    // Top item index value is zero because there is no need to

                    // know what it is in focus change.

                    oldIndex = 0;

                    iObserver.HandleEventL( MAknCommonDialogsEventObserver::EFocusChange,

                        newIndex, oldIndex, iPopoutCba );

                    }

                return response;

                // No break needed after return

                }

            case EKeyOK:

                {

                if( !ReportPopupEventL( MAknCommonDialogsEventObserver::ESelectionKeyPress ) )

                    {

                    // Returned false, do not allow exit from popup.

                    return EKeyWasConsumed;

                    }

                break;

                }

            case EKeyEscape:

                {

                TInt oldFocus( 0 );

                TInt oldTopIndex( 0 );

                MAknCommonDialogsEventObserver::TAction action(

                    iObserver.HandleEventL( MAknCommonDialogsEventObserver::ECancelAllActions, 

                        oldFocus, oldTopIndex, iPopoutCba ) );

                if ( action == MAknCommonDialogsEventObserver::EDidNothing || 

                       action == MAknCommonDialogsEventObserver::ETryingToExit )

                    {

                    iEndKey = ETrue;

                    MakeVisible( EFalse );

                    AttemptExitL( EFalse );

                    }

                return EKeyWasConsumed;

                // No break needed after return

                }

            default:

                {

                break;

                }

            }

        }

    return iListBox->OfferKeyEventL( aKeyEvent, aType );

    }

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

// CAknCommonDialogsPopupList::ReportPopupEventL

//

//

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

//

TBool CAknCommonDialogsPopupList::ReportPopupEventL(

    MAknCommonDialogsEventObserver::TEvent aEvent )

    {

    // Get current indices in listbox.

    const TInt oldFocus( iListBox->CurrentItemIndex() );

    const TInt oldTopIndex( iListBox->View()->TopItemIndex() );

    // Create variables for new indices.

    TInt newFocus( oldFocus );

    TInt newTopIndex( oldTopIndex );

    // Report the event to event handler

    MAknCommonDialogsEventObserver::TAction action(

        iObserver.HandleEventL( aEvent, newFocus, newTopIndex, iPopoutCba ) );

    // Do what the event handler says.

    switch( action )

        {

        case MAknCommonDialogsEventObserver::EDidNothing:

            {

            return EFalse;

            }

        case MAknCommonDialogsEventObserver::EItemsUpdated:

            {

            UpdateItemsAndRedrawPopupL( newFocus, newTopIndex );

            return EFalse;

            }

        case MAknCommonDialogsEventObserver::ELaunchEmptyPopup:

            {

            MakeVisible( EFalse );

            // Trap empty popup launching in order to set popup visible again.

            TPtr promptText = iTitle->PromptText();

            TRAPD( error,

                iAvkonEnv->ExecuteEmptyPopupListL(

                NULL, &promptText, R_AVKON_SOFTKEYS_OK_BACK ) );

            MakeVisible( ETrue );

            User::LeaveIfError( error );

            return EFalse;

            }

        case MAknCommonDialogsEventObserver::ECanceled:

            {

            AttemptExitL(EFalse);

            return EFalse;

            }

        default:

            {

            break;

            }

        }

    return ETrue;

    }

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

// CAknCommonDialogsPopupList::UpdateItemsAndRedrawPopupL

//

//

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

//

void CAknCommonDialogsPopupList::UpdateItemsAndRedrawPopupL( TInt aFocus, TInt aTopIndex )

    {

    iListBox->Reset();

    iListBox->HandleItemRemovalL();

    // If indices have been defined, set then after reset

    CListBoxView* view = iListBox->View();

    if( aFocus >= 0 )

        {

        view->SetCurrentItemIndex( aFocus );

        if( aTopIndex >= 0 )

            {

            view->SetTopItemIndex( aTopIndex );

            }

        }

    // Report focus change event

    iObserver.HandleEventL(

        MAknCommonDialogsEventObserver::EFocusChange, aFocus, aTopIndex, iPopoutCba );

    // Change window size and update screen

    MakeVisible( EFalse );

    SetupWindowLayout( iWindowType );

    ( (RWindow*)DrawableWindow() )->ClearRedrawStore();

    MakeVisible( ETrue );

    DrawNow();

    }

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

// CAknCommonDialogsPopupList::HandleListBoxEventL

// Override CAknPopupList's HandleListBoxEventL function

// Processes key & point (for S60 4.0) events from the listbox.

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

//

void CAknCommonDialogsPopupList::HandleListBoxEventL(CEikListBox* aListBox,

        TListBoxEvent aEventType)

    {

    // Respond to events from listbox

    if (aListBox == iListBox)

        {

        // if left softkey is empty, we do not handle enter key either.

        if (iPopoutCba && iPopoutCba->ButtonGroup())

            if (iPopoutCba->ButtonGroup()->CommandId( 0 ) != 0) // CommandId(0) is left softkey.

                {

                if ( ( aEventType == MEikListBoxObserver::EEventEnterKeyPressed )

                    || ( aEventType == MEikListBoxObserver::EEventItemDoubleClicked )

                    || ( aEventType == MEikListBoxObserver::EEventItemClicked )

                    || ( aEventType == MEikListBoxObserver::EEventPanningStopped)

                    || ( aEventType == MEikListBoxObserver::EEventFlickStopped )

                    || ( aEventType == MEikListBoxObserver::EEventItemSingleClicked )

                    && AknLayoutUtils::PenEnabled() )

                    {

                    MAknCommonDialogsEventObserver::TEvent event;

                    if( aEventType == MEikListBoxObserver::EEventItemDoubleClicked 

                    || aEventType == MEikListBoxObserver::EEventItemSingleClicked

                    )

                        {

                        event = MAknCommonDialogsEventObserver::EEventClicked;

                        iListBox->View()->ItemDrawer()->ClearFlags( CListItemDrawer::EPressedDownState );

                        }

                    else if ( aEventType == MEikListBoxObserver::EEventItemClicked 

                           || aEventType == MEikListBoxObserver::EEventPanningStopped 

                           || aEventType == MEikListBoxObserver::EEventFlickStopped )

                        {

                        event = MAknCommonDialogsEventObserver::EFocusChange;

                        }

                    else

                        event = MAknCommonDialogsEventObserver::ESelectionKeyPress;

                    if ( !ReportPopupEventL( event ) )

                        {

                        return;

                        }

                    AttemptExitL(ETrue);

                    }

                }

        }

    }

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

// CAknCommonDialogsPopupList::HandlePointerEventL

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

//

void CAknCommonDialogsPopupList::HandlePointerEventL( const TPointerEvent& aPointerEvent )

	{

	if( AknLayoutUtils::PenEnabled() )

        { 

        TInt oldHighlight = iListBox->CurrentItemIndex();

        CCoeControl::HandlePointerEventL( aPointerEvent );

        if ( oldHighlight != iListBox->CurrentItemIndex() )

            {

            HandleListBoxHighlightChangedL( iListBox );

            }

        }

	}

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

// CAknCommonDialogsPopupList::NotifyDrivesChangedL

//

//

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

//

void CAknCommonDialogsPopupList::NotifyDrivesChangedL(

    const MDesCArray* aItemArray )

    {

    TInt focus = iListBox->CurrentItemIndex();

    TInt topIndex = iListBox->View()->TopItemIndex();

    if ( focus < 0 )

        {

        focus = aItemArray->MdcaCount() - 1;

        }

    UpdateItemsAndRedrawPopupL( focus, topIndex );

    }

void CAknCommonDialogsPopupList::HandleFileSystemChangedL( const MDesCArray* aItemArray )

    {

    TInt focus = iListBox->CurrentItemIndex();

    TInt topIndex = iListBox->View()->TopItemIndex();

    if ( focus < 0 )

        {

        focus = aItemArray->MdcaCount() - 1;

        }

    UpdateItemsAndRedrawPopupL( focus, topIndex );

    }

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

// CAknCommonDialogsPopupList::HandleListBoxHighlightChangedL

//

//

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

//

void CAknCommonDialogsPopupList::HandleListBoxHighlightChangedL( CEikListBox* aListBox )

    {

    TInt oldFocus( aListBox->CurrentItemIndex() );

    TInt oldTopIndex( aListBox->View()->TopItemIndex() );

    // Report focus change event

    iObserver.HandleEventL(

        MAknCommonDialogsEventObserver::EFocusChange, oldFocus, oldTopIndex, iPopoutCba );

    }

//  End of File