/*

* Copyright (c) 2007 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:  Softkey UI feature implementation.

*

*/

#include    <cvtengmodel.h>

#include    <mvtengcamerapreferences.h>

#include    <eikenv.h>

#include    <cvtlogger.h>

#include    <avkon.hrh>

#include    "cvtuiprefsettinglistbase.h"

#include    "CVtUiAppUi.h"

#include    "cvtuitransparentsettingpage.h"

#include    "CVtUiMainControl.h"

#include    "CVtUiContextControl.h"

#include    "cvtuifeaturemanager.h"

#include    "VtUiLayout.h"

#include    <layoutmetadata.cdl.h>

// constants

static const TInt KMaxNumberOfArrayItems = 5;

static const TInt KMaxNumberOfActiveItems = 5;

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

// CVtUiPrefSettingListBase::~CVtUiPrefSettingListBase

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

// 

CVtUiPrefSettingListBase::~CVtUiPrefSettingListBase()

    {

    __VTPRINTENTER( "CVtUiPrefSettingListBase.~CVtUiPrefSettingListBase" )

    delete iViewfinderBitmap;

    delete iSettingPage;

    iActiveItems.Close();

    __VTPRINTEXIT( "CVtUiPrefSettingListBase.~CVtUiPrefSettingListBase" )

    }

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

// CVtUiPrefSettingListBase::InitFeatureL

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

// 

void CVtUiPrefSettingListBase::InitFeatureL()

    {

    __VTPRINTENTER( "CVtUiPrefSettingListBase.InitFeatureL" )

    ResizeBackroundBitmapRect();

    __VTPRINTEXIT( "CVtUiPrefSettingListBase.InitFeatureL" )

    }

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

// CVtUiPrefSettingListBase::IsPendingCmd

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

//

TBool CVtUiPrefSettingListBase::IsPendingCmd()

    {

    return iPendingSettingChangeCmd;

    }

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

// CVtUiPrefSettingListBase::HandlePendingCmd

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

//

void CVtUiPrefSettingListBase::HandlePendingCmdL()

    {

    SettingPageItemChangedL( iOriginalSelection );

    }

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

// CVtUiPrefSettingListBase::HandleSettingPageEventL

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

//

void CVtUiPrefSettingListBase::HandleSettingPageEventL(

    CAknSettingPage* /*aSettingPage*/, TAknSettingPageEvent aEventType )

    {

    __VTPRINTENTER( "CVtUiPrefSettingListBase.HandleSettingPageEventL" )

    const TInt currentItem = iSettingPage->ListBoxControl()->CurrentItemIndex();      

    switch ( aEventType )

        {

        case EEventSettingCancelled:

             {

             if ( iOriginalSelection != currentItem )

                {

                // Set back to orginal selection

                SettingPageItemChangedL( iOriginalSelection );

                iCurrentSelection = iOriginalSelection;

                }

             Stop();

             break;   

             }     

         case EEventSettingChanged:

             {

             SettingPageItemChangedL( currentItem );

             iOriginalSelection = currentItem;

             Stop();

             break;

             }

         case EEventSettingOked:

             {

             // Check if the current selection has changed

             if ( iOriginalSelection != currentItem )

                 {       

                 SettingPageItemChangedL( currentItem );

                 iOriginalSelection = currentItem;

                 iCurrentSelection = currentItem;

                 }                 

             Stop();                 

             break;

             }

         default:

             break;

        }

    __VTPRINTEXIT( "CVtUiPrefSettingListBase.HandleSettingPageEventL" )        

    }

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

// CVtUiPrefSettingListBase::ListStateChangedL

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

//

void CVtUiPrefSettingListBase::ListStateChangedL()

    {

    __VTPRINTENTER( "CVtUiPrefSettingListBase.ListStateChangedL" )

    // Check if new item is focused in the selection list

    const TInt currentItem = iSettingPage->ListBoxControl()->CurrentItemIndex();

    if ( iCurrentSelection != currentItem )

        {

        // Update current selection

        iCurrentSelection = currentItem;

        // Adjust frame

        SettingPageItemChangedL( currentItem );    

        }    

    __VTPRINTEXIT( "CVtUiPrefSettingListBase.ListStateChangedL" )

    }

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

// CVtUiPrefSettingListBase::StartSettingPageL

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

//

void CVtUiPrefSettingListBase::StartSettingPageL()

    {

    __VTPRINTENTER( "CVtUiPrefSettingListBase.StartSettingPageL" )

    // Swap image places if needed

    iAppUi.SwitchViewFinderToMainPaneL();

    // Get context control's window priority and position

        ->OrdinalPriority();

        ->OrdinalPosition();

    // Rise context control's window priority othwerwise setting page will be

    // drawn partially over the context control window.

    iAppUi.ContextControl().DrawableWindow()->SetOrdinalPosition( 

    // Creates setting page

    CreateSettingPageL();

    // Launch setting page.

    iSettingPage->ExecuteLD( CAknSettingPage::EUpdateWhenAccepted, EFalse );

    iSettingPage = NULL;

    __VTPRINTEXIT( "CVtUiPrefSettingListBase.StartSettingPageL" )

    }

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

// CVtUiPrefSettingListBase::StopSettingPageL

//    

//

void CVtUiPrefSettingListBase::StopSettingPageL()

    {

    __VTPRINTENTER( "CVtUiPrefSettingListBase.StopSettingPageL" )

    // Swap image places if needed  

    iAppUi.RestoreViewFinderL();

    if ( iSettingPage)

        {

        // Cancell the setting page

        TKeyEvent keyEvent;

        keyEvent.iCode =  EKeyEscape;

        iSettingPage->OfferKeyEventL( keyEvent, EEventKey );

        }

    iAppUi.ContextControl().DrawableWindow()->SetOrdinalPosition( 

    __VTPRINTEXIT( "CVtUiPrefSettingListBase.StopSettingPageL" )

    }

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

// CVtUiPrefSettingListBase::SizeChanged

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

//

void CVtUiPrefSettingListBase::SizeChanged()

    {

    __VTPRINTENTER( "CVtUiPrefSettingListBase.SizeChanged" )

    ResizeBackroundBitmapRect();

    // Set new coordinates and size

    iSettingPage->SetBitmapPositionAndClipRect( iBitmapTopLeftCorner,

        iBitmapClippingRect );

    iSettingPage->HandleLayoutChangeL();

    __VTPRINTEXIT( "CVtUiPrefSettingListBase.SizeChanged" )

    }

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

// CVtUiPrefSettingListBase::UpdateBackground

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

//

void CVtUiPrefSettingListBase::UpdateBackground( CFbsBitmap* aFrame )

    {

    __VTPRINTENTER( "CVtUiPrefSettingListBase.UpdateBackground" )

    if ( aFrame )

        {

        // aFrame is valid only in this callback, the bitmap

        // must be copied for use as the setting page background

        iViewfinderBitmap->Duplicate( aFrame->Handle() );

        if ( iSettingPage )

            {

            // Update background

            iSettingPage->ChangeBackground( iViewfinderBitmap );

            }

        }

    __VTPRINTEXIT( "CVtUiPrefSettingListBase.UpdateBackground" )        

    }

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

// CVtUiPrefSettingListBase::UpdateSettingL

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

// 

void CVtUiPrefSettingListBase::UpdateSettingL()

    {

    // if no active items do nothing

    if ( iActiveItems.Count() > 0 )

        {

        // user change the focuse in the list but not

        // select it indeed

        if( iOriginalSelection != iCurrentSelection )  

            SettingPageItemChangedL( iCurrentSelection );

        else

        // yes,user has tapped down the OK button to choose a item

            SettingPageItemChangedL( iOriginalSelection );        

        }

    }

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

// CVtUiPrefSettingListBase::CVtUiPrefSettingListBase

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

//

CVtUiPrefSettingListBase::CVtUiPrefSettingListBase( CVtUiFeatureManager&

    aFeatureManager,  TVtUiFeatureId aFeatureId ) : CVtUiFeatureBase(

    aFeatureId, aFeatureManager ), iActiveItems( KMaxNumberOfActiveItems ), 

    iBitmapTopLeftCorner( 0, 0 ), iAppUi( aFeatureManager.AppUi() ),iPendingSettingChangeCmd( EFalse )

    {

    __VTPRINTENTER( "CVtUiPrefSettingListBase.CVtUiPrefSettingListBase" )   

    __VTPRINTEXIT( "CVtUiPrefSettingListBase.CVtUiPrefSettingListBase" )

    }

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

// CVtUiPrefSettingListBase::ConstructL

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

//

void CVtUiPrefSettingListBase::ConstructL()

    {

    __VTPRINTENTER( "CVtUiPrefSettingListBase.ConstructL" )

    BaseConstructL();

    // Get camera preferences extension.

    iCameraPref = static_cast<MVtEngCameraPreferences*> (iFeatureManager.

        AppUi().Model().Extension( KVtEngExtensionCameraPreferences ) );

    // Create backgound bitmap

    iViewfinderBitmap = new ( ELeave ) CFbsBitmap();

    __VTPRINTEXIT( "CVtUiPrefSettingListBase.ConstructL" )

    }

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

// CVtUiPrefSettingListBase::ReadAndAppendItemL

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

//

void CVtUiPrefSettingListBase::ReadAndAppendItemL( CDesCArray& aItems,

    TInt aResId )

    {

    __VTPRINTENTER( "CVtUiPrefSettingListBase.ReadAndAppendItemL" )

    HBufC* text = iAppUi.GetEikonEnv()->AllocReadResourceLC( aResId );

    aItems.AppendL( *text );

    CleanupStack::PopAndDestroy(); // text

    __VTPRINTEXIT( "CVtUiPrefSettingListBase.ReadAndAppendItemL" )

    }    

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

// CVtUiPrefSettingListBase::CreateSettingPageL

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

//

void CVtUiPrefSettingListBase::CreateSettingPageL()

    {

    __VTPRINTENTER( "CVtUiPrefSettingListBase.CreateSettingPageL" )

    CDesCArray* selectionArray = new ( ELeave ) 

        CDesCArraySeg( KMaxNumberOfArrayItems );

    CleanupStack::PushL( selectionArray );

    // Set items must be called before CurrentSelection function

    // Otherwise iActiveItems array is not populated

    iActiveItems.Reset();

    SetItemsL( *selectionArray );

    TInt resourceId = SettingPageResId();

    // Current selection is needed when a new item is focused in the list

    iCurrentSelection = iOriginalSelection;

    TInt current( CurrentSelection() );

    if ( !iSettingPage )

        {

        iSettingPage = new ( ELeave ) CVtUiTransparentSettingPage( resourceId,

            iCurrentSelection, selectionArray );

        iSettingPage->ConstructL();

        iSettingPage->SetSettingPageObserver( this );

        iSettingPage->SetSettingPageEventStateObserver( this );

        }

     CleanupStack::PopAndDestroy(); // selectionArray        

     ResizeBackroundBitmapRect();

     iSettingPage->SetBitmapPositionAndClipRect( iBitmapTopLeftCorner, 

        iBitmapClippingRect );            

    __VTPRINTEXIT( "CVtUiPrefSettingListBase.CreateSettingPageL" )

    }

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

// CVtUiPrefSettingListBase::ShrinkBackroundBitmapRect

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

//    

void CVtUiPrefSettingListBase::ResizeBackroundBitmapRect()

    {

    __VTPRINTENTER( "CVtUiPrefSettingListBase.ResizeBackroundBitmapRect" )

    TRect parent( iAppUi.MainControl().Size() );

    TAknWindowLineLayout rect;

    TAknLayoutRect iStreamLayout;

    VtUiLayout::GetSecondWindowStreamLayout( rect, ETrue );

    iStreamLayout.LayoutRect( parent, rect );

    // In landscape rect from layout doesn't work 

    // for some reason

    if ( Layout_Meta_Data::IsLandscapeOrientation() )

        {

        iBitmapClippingRect = parent;

        }

    else

        {

        iBitmapClippingRect = iStreamLayout.Rect();

        }

    iBitmapTopLeftCorner = iStreamLayout.Rect().iTl;

    __VTPRINTEXIT( "CVtUiPrefSettingListBase.ResizeBackroundBitmapRect" )

    }