/*

* Copyright (c) 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:  Implementation of Audio effects view

*

*/

// INCLUDE FILES

#include <bautils.h>

#include <eikmenub.h>

#include <AknUtils.h>

#include <hlplch.h>

#include <data_caging_path_literals.hrh>

#include <avkon.rsg>

#include <akntitle.h>

#include <mpxuser.h>

#include <mpxmusicplayerviewplugin.hrh>

#include <mpxplaybackutility.h>

#include <mpxaudioeffectsview.rsg>

#include <mpxviewutility.h>

#include "mpxaudioeffectengine.h"

#include "mpxaudioeffectsmodel.h"

#include "mpxaudioeffectsviewcontainer.h"

#include "mpxaudioeffectsviewimp.h"

#include "mpxaudioeffects.hrh"

// CONSTANTS

_LIT( KMPXAudioEffectsRscPath, "mpxaudioeffectsview.rsc" );

_LIT(KEmptyTitle, " ");

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

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

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

// might leave.

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

//

CMPXAudioEffectsViewImp::CMPXAudioEffectsViewImp()

    {

    }

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

// Symbian 2nd phase constructor can leave.

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

//

void CMPXAudioEffectsViewImp::ConstructL()

    {

    //get resource file

    TParse parse;

    parse.Set( KMPXAudioEffectsRscPath, &KDC_APP_RESOURCE_DIR, NULL );

    TFileName resourceFile( parse.FullName() );

    User::LeaveIfError( MPXUser::CompleteWithDllPath( resourceFile ) );

    BaflUtils::NearestLanguageFile(

        CCoeEnv::Static()->FsSession(), resourceFile );

    iResourceOffset = CCoeEnv::Static()->AddResourceFileL( resourceFile );

    BaseConstructL( R_AUDIOEFFECTS_SETTINGSLIST_VIEW );

    // Get the playback utility instance from engine

    iPlaybackUtility = MMPXPlaybackUtility::UtilityL( KPbModeDefault );

    iModel = CMPXAudioEffectsModel::NewL( *iPlaybackUtility );

    iViewUtility = MMPXViewUtility::UtilityL();

    iViewUtility->AddObserverL(this);

    iGoPreviousView = EFalse;

    }

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

// Two-phased constructor.

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

//

CMPXAudioEffectsViewImp* CMPXAudioEffectsViewImp::NewL()

    {

    CMPXAudioEffectsViewImp* self = CMPXAudioEffectsViewImp::NewLC();

    CleanupStack::Pop( self );

    return self;

    }

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

// Two-phased constructor.

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

//

CMPXAudioEffectsViewImp* CMPXAudioEffectsViewImp::NewLC()

    {

    CMPXAudioEffectsViewImp* self = new ( ELeave ) CMPXAudioEffectsViewImp();

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

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

// Destructor

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

//

CMPXAudioEffectsViewImp::~CMPXAudioEffectsViewImp()

    {

    delete iModel;

    if ( iPlaybackUtility )

        {

        iPlaybackUtility->Close();

        }

    if ( iResourceOffset )

        {

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

        }

    if ( iViewUtility )

        {

		iViewUtility->RemoveObserver( this );

        iViewUtility->Close();

        }

    }

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

// CMPXAudioEffectsViewImp::ChangeSelectedItemL

// (other items were commented in a header).

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

//

void CMPXAudioEffectsViewImp::ChangeSelectedItemL()

    {

    if( iContainer )

        {

        iContainer->ChangeSelectedItemL();

        }

    }

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

// CMPXAudioEffectsViewImp::Id

// (other items were commented in a header).

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

//

TUid CMPXAudioEffectsViewImp::Id() const

    {

    return TUid::Uid( KMPXAudioEffectsViewId );

    }

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

// CMPXAudioEffectsViewImp::HandleCommandL

// (other items were commented in a header).

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

//

void CMPXAudioEffectsViewImp::HandleCommandL( TInt aCommand )

    {

    switch ( aCommand )

        {

        case ESettingsListCmdChange:

            {

            ChangeSelectedItemL();

            break;

            }

        case EAknCmdHelp:

        case ESettingsListCmdHelp:

            {

            HlpLauncher::LaunchHelpApplicationL(iEikonEnv->WsSession(),

            AppUi()->AppHelpContextL());

            break;

            }

        case EAknSoftkeyBack:

            {

            iGoPreviousView = ETrue;

            iViewUtility->ActivatePreviousViewL();

            break;

            }

        default:

            {

            // Pass the command to AppUi to handle.

            AppUi()->HandleCommandL( aCommand );

            break;

            }

         }

    }

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

// CMPXAudioEffectsViewImp::DoActivateL

// (other items were commented in a header).

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

//

void CMPXAudioEffectsViewImp::DoActivateL(

    const TVwsViewId& aPrevViewId,

    TUid /*aCustomMessageId*/,

    const TDesC8& /*aCustomMessage*/ )

    {

    StatusPane()->SwitchLayoutL( R_AVKON_STATUS_PANE_LAYOUT_USUAL );

    iPreviousView = aPrevViewId;

    if (!iContainer)

        {

        iContainer = new ( ELeave ) CMPXAudioEffectsViewContainer();

        iContainer->SetMopParent( this );

        iContainer->ConstructL( ClientRect(), iModel );

        AppUi()->AddToStackL( *this, iContainer );

        }

    }

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

// CMPXAudioEffectsViewImp::HandleViewActivation

// Handle view activation

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

//

void CMPXAudioEffectsViewImp::HandleViewActivation(

    const TUid& aCurrentViewType,

    const TUid& /*aPreviousViewType*/ )

    {

    MPX_FUNC( "CMPXAudioEffectsViewImp::HandleViewActivation" );

    if ( ( aCurrentViewType.iUid == KMPXPluginTypePlaybackUid ) && ( iGoPreviousView == EFalse ) )

        {

		// It is view switching when launched from other applications

		// deactivate this view to avoid flickering 

		// since this view is the current active view, it receives this event

        if ( iContainer )

            {      

            // set title to blank to avoid title flickering

            CAknTitlePane* title( static_cast<CAknTitlePane*>

                ( StatusPane()->ControlL( TUid::Uid( EEikStatusPaneUidTitle ))));

            if ( title )

                {

                title->SetTextL(KEmptyTitle); 

                title->DrawNow();

                }

            }

        DoDeactivate();

        }

    }

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

// CMPXAudioEffectsViewImp::HandleViewUpdate

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

//

void CMPXAudioEffectsViewImp::HandleViewUpdate(

    TUid /* aViewUid */,

    MMPXViewActivationObserver::TViewUpdateEvent /* aUpdateEvent */,

    TBool /* aLoaded */,

    TInt /* aData */)

    {

    // Do nothing, this should be handled by the AppUI

    }

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

// CMPXAudioEffectsViewImp::DoDeactivate

// (other items were commented in a header).

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

//

void CMPXAudioEffectsViewImp::DoDeactivate()

    {

    if ( iContainer )

        {

        AppUi()->RemoveFromStack( iContainer );

        delete iContainer;

        iContainer = NULL;

        iGoPreviousView = EFalse;

        }

    }

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

// From CAknView

// Processes user commands.

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

//

void CMPXAudioEffectsViewImp::ProcessCommandL( TInt aCommand )

    {

    MPX_DEBUG2("ProcessCommandL::ProcessCommandL(%d): entering", aCommand);

    if ( aCommand == EAknCmdExit )

        {

        HandleCommandL( aCommand );

        }

    CAknView::ProcessCommandL( aCommand );

    MPX_DEBUG1("ProcessCommandL::ProcessCommandL(): exiting");

    }

// End of File