/*

* Copyright (c) 2008 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:  Wallpaper view.

*

*/

// INCLUDE FILES

#include "xnwallpaperview.h"

#include "xnwallpapercontainer.h"

#include "xnuiengine.h"

#include "xnappuiadapter.h"

#include "xnviewadapter.h"

#include "xnbackgroundmanager.h"

#include <xnuiengine.rsg>

// SYSTEM INCLUDE FILES

#include <aknappui.h>

#include <eikbtgpc.h>

#include <avkon.rsg>

#include <AknsWallpaperUtils.h>

#include <MGFetch.h>

#include <aknnotewrappers.h>

#include <StringLoader.h> 

#include <caf/caf.h>

_LIT8( KMulti, "multi" );

const TInt KFileArrayGranularity = 6;

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

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

// C++ default constructor.

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

//

CXnWallpaperView::CXnWallpaperView( CXnUiEngine& aEngine ) :

    iEngine( aEngine )

    {

    }

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

// Symbian 2nd phase constructor.

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

//

void CXnWallpaperView::ConstructL()

    {

    BaseConstructL();

    iTimer = CPeriodic::NewL( CActive::EPriorityIdle );

    }

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

// Two-phased constructor.

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

//

CXnWallpaperView* CXnWallpaperView::NewL( CXnUiEngine& aEngine )

    {

    CXnWallpaperView* self = new (ELeave) CXnWallpaperView( aEngine );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// Destructor.

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

//

CXnWallpaperView::~CXnWallpaperView()

    {

    if ( iContainer )

        {

        delete iContainer;

        iContainer = NULL;

        }

    delete iTimer;

    }

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

// CXnWallpaperView::Id

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

//

TUid CXnWallpaperView::Id() const

    {

    return KWallpaperViewUid;

    }

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

// CXnWallpaperView::DoActivateL

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

//

void CXnWallpaperView::DoActivateL(

            const TVwsViewId& aPrevViewId,

            TUid /*aCustomMessageId*/,

            const TDesC8& aCustomMessage )

    {

    iAvkonAppUi->StatusPane()->SwitchLayoutL(

            R_AVKON_STATUS_PANE_LAYOUT_USUAL_FLAT );

    iAvkonAppUi->StatusPane()->DrawNow();

    if ( !iContainer )

        {

        iContainer = CXnWallpaperContainer::NewL();

        iAvkonAppUi->AddToStackL( *this,  iContainer );

        iContainer->ActivateL();

        iContainer->DrawNow();

        }

    iData.iAppUid = aPrevViewId.iAppUid;

    iData.iViewUid = aPrevViewId.iViewUid; 

    iData.iMultiple = EFalse;

    iData.iTimer = iTimer;

    if( aCustomMessage == KMulti )

        {

        iData.iMultiple = ETrue;

        }

    // Run image selection dialog asynchronously

    if ( iTimer->IsActive() )

        {

        iTimer->Cancel();

        }

    iTimer->Start( 0, 1000, TCallBack( TimerCallbackL, &iData ) );

    }

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

// CXnWallpaperView::DoActivateL

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

//

void CXnWallpaperView::DoDeactivate()

    {

    if ( iContainer )

        {

        iAvkonAppUi->RemoveFromStack( iContainer );

        delete iContainer;

        iContainer = NULL;

        }

    }

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

// CXnWallpaperView::TimerCallback

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

//

TInt CXnWallpaperView::TimerCallbackL(TAny *aPtr)

    {

    TInt errAddWallpaper = KErrNone;

    TXnWallpaperViewData* data = reinterpret_cast<TXnWallpaperViewData*>( aPtr );

    data->iTimer->Cancel();

    CDesCArrayFlat* files = 

        new (ELeave) CDesCArrayFlat( KFileArrayGranularity );

    CleanupStack::PushL( files );

    TBool selected = EFalse;

    TRAPD( err, selected = MGFetch::RunL( *files, EImageFile, data->iMultiple ) );

    if ( err == KErrNone &&

         selected &&

         files->MdcaCount() > 0 )

        {

        // set wallpaper.

        if( files->MdcaCount() == 1 )

            {

            CXnAppUiAdapter* appui = static_cast< CXnAppUiAdapter* >( iAvkonAppUi );

            CXnBackgroundManager& bgManager = appui->ViewAdapter().BgManager();

            errAddWallpaper = bgManager.AddWallpaperL( files->MdcaPoint( 0 ) );

            }

        }

    CleanupStack::PopAndDestroy( files );

    if( errAddWallpaper == KErrCACorruptContent )

        {

        //load message text

        HBufC* msg = StringLoader::LoadLC( R_QTN_HS_CORRUPTED_IMAGE_NOTE );

        //ensure that dialog will not disappear immediatelly - by const. param

        CAknErrorNote* dialog = new (ELeave) CAknErrorNote( true );

        CleanupStack::PushL( dialog );

        //show dialog to user and destroy it

        dialog->ExecuteLD( *msg );

        CleanupStack::Pop( dialog );

        CleanupStack::PopAndDestroy( msg );

        }

    iAvkonAppUi->ActivateViewL( TVwsViewId( data->iAppUid, data->iViewUid ) );

    return EFalse;

    }

//  End of File