/*

* 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.

*

*/

// System includes

#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>

#include <bautils.h>

#include <data_caging_path_literals.hrh>

// User includes

#include <xnwallpaperview.rsg>

#include "xnwallpaperview.h"

#include "xnwallpapercontainer.h"

#include "xnuiengine.h"

#include "xnappuiadapter.h"

#include "xnviewadapter.h"

#include "xnbackgroundmanager.h"

#include "xneffectmanager.h"

#include "xnviewmanager.h"

// Constants

_LIT( KResourceDrive, "z:" );

_LIT( KResourceFile, "xnwallpaperview.rsc" );

_LIT8( KMulti, "multi" );

const TInt KFileArrayGranularity( 6 );

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

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

// C++ default constructor.

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

//

CXnWallpaperView::CXnWallpaperView( CXnUiEngine& aEngine ) 

    : iEngine( aEngine ), iAppUi( iEngine.AppUiAdapter() )    

    {

    }

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

// Symbian 2nd phase constructor.

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

//

void CXnWallpaperView::ConstructL()

    {

    TFileName resFile;

    resFile.Append( KResourceDrive );

    resFile.Append( KDC_APP_RESOURCE_DIR );

    resFile.Append( KResourceFile );

    CCoeEnv* env( CCoeEnv::Static() );

    BaflUtils::NearestLanguageFile( env->FsSession(), resFile );

    iResourceOffset = env->AddResourceFileL( resFile );

    BaseConstructL( R_WALLPAPER_VIEW );

    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()

    {    

    CCoeEnv::Static()->DeleteResourceFile( iResourceOffset );    

    delete iTimer;

    }

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

// CXnWallpaperView::Id

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

//

TUid CXnWallpaperView::Id() const

    {

    return KWallpaperViewUid;

    }

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

// CXnWallpaperView::DoActivateL

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

//

void CXnWallpaperView::DoActivateL( const TVwsViewId& aPrevViewId,           

    TUid /*aCustomMessageId*/, const TDesC8& aCustomMessage )            

    {

    // switch layout 

    CEikStatusPane* sp( iAppUi.StatusPane() );

    sp->SwitchLayoutL( R_AVKON_STATUS_PANE_LAYOUT_USUAL_FLAT );

    sp->ApplyCurrentSettingsL();

    // disable transparancy

        {

        }

    sp->DrawNow();

    // update cba

    CEikButtonGroupContainer* bgc( Cba() );

    CEikCba* cba = static_cast< CEikCba* >( bgc->ButtonGroup() );

    if ( cba ) 

        {       

        bgc->SetBoundingRect( TRect() );

        cba->DrawNow();

        }

    if ( !iContainer )

        {

        iContainer = CXnWallpaperContainer::NewL();

        iAppUi.AddToStackL( *this, iContainer );

        iContainer->ActivateL();

        iContainer->DrawNow();

        }

    iData.iAppUid = aPrevViewId.iAppUid;

    iData.iViewUid = aPrevViewId.iViewUid; 

    iData.iMultiple = EFalse;

    if ( aCustomMessage == KMulti )

        {

        iData.iMultiple = ETrue;

        }

    // Run image selection dialog asynchronously

    iTimer->Cancel();

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

    iAppUi.EffectManager()->UiRendered();

    }

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

// CXnWallpaperView::DoActivateL

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

//

void CXnWallpaperView::DoDeactivate()

    {

    if ( iContainer )

        {

        iAppUi.RemoveFromStack( iContainer );

        delete iContainer;

        iContainer = NULL;

        }

    iAppUi.EffectManager()->UiRendered();

    }

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

// CXnWallpaperView::TimerCallback

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

//

TInt CXnWallpaperView::TimerCallbackL( TAny *aPtr )

    {       

    CXnWallpaperView* self = reinterpret_cast< CXnWallpaperView* >( aPtr );

    self->iTimer->Cancel();

    CDesCArrayFlat* files = 

        new (ELeave) CDesCArrayFlat( KFileArrayGranularity );    

    CleanupStack::PushL( files );

    TInt err( KErrNone );

    TBool selected( EFalse );

    TXnWallpaperViewData& data( self->iData );

    CXnBackgroundManager& bg( self->iAppUi.ViewAdapter().BgManager() );

    TRAPD( fetch, selected = MGFetch::RunL( *files, EImageFile, data.iMultiple ) );

    if ( fetch == KErrNone && selected && files->MdcaCount() > 0 )                 

        {

        // set wallpaper

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

            {                        

            err = bg.AddWallpaperL( files->MdcaPoint( 0 ) );

            }

        }

    CleanupStack::PopAndDestroy( files );

    if ( err == 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 );

        }

    self->iAppUi.EffectManager()->BeginFullscreenEffectL( 

        KGfxContextCloseWallpaperView, self->iAppUi.ViewManager().ActiveViewData() );

    self->iAppUi.ActivateViewL( TVwsViewId( data.iAppUid, data.iViewUid ) );

    return KErrNone;

    }

//  End of File