/*

* Copyright (c) 2008-2009 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:    Media item list observer interface 

*

*/

#include "glxmskcontroller.h"

#include <glxtracer.h>                         // For Logs

#include <mglxmedialist.h>

#include <glxlistviewplugin.rsg>

#include "glxcommandhandlers.hrh"

#include <avkon.rsg>

#include <glxviewbase.rsg>

#include <StringLoader.h>

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

// NewL

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

//

CGlxMSKController* CGlxMSKController::NewL()

    {

    TRACER("CGlxToolbarController::NewL");

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

    return self;

    }

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

// Default Constructor

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

//

CGlxMSKController::CGlxMSKController()

    {

    TRACER("CGlxMSKController::CGlxMSKController");

    iUiUtility = CGlxUiUtility::UtilityL();

    }

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

// AddToObserver

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

//

void CGlxMSKController::AddToObserverL (MGlxMediaList& aList, CEikButtonGroupContainer* aCba)

    {

    TRACER("CGlxMSKController::AddToObserverL");

    iCba = aCba;

    iAttributeAvailable = EFalse;

    aList.AddMediaListObserverL ( this );

    }

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

// RemoveFromObserver 

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

//

void CGlxMSKController::RemoveFromObserver (MGlxMediaList& aList)

    {

    TRACER("CGlxMSKController::RemoveFromObserver");

    aList.RemoveMediaListObserver ( this );

    }

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

// HandleItemAddedL

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

//

void CGlxMSKController::HandleItemAddedL(TInt /*aStartIndex*/, TInt /*aEndIndex*/, 

        MGlxMediaList* /*aList*/)

    {

    TRACER("CGlxMSKController::HandleItemAddedL");

    // no implementation

    }

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

// HandleMediaL

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

//

void CGlxMSKController::HandleMediaL(TInt /*aListIndex*/, MGlxMediaList* /*aList*/)

    {

    TRACER("CGlxMSKController::HandleMediaL");

    // no implementation

    }

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

// HandleItemRemovedL

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

//

void CGlxMSKController::HandleItemRemovedL(TInt /*aStartIndex*/, 

        TInt /*aEndIndex*/, MGlxMediaList* aList)

    {

    TRACER("CGlxMSKController::HandleItemRemovedL");

    if( aList->Count() <= 0 )

        {

        iCba->SetCommandSetL(R_AVKON_SOFTKEYS_OPTIONS_BACK);

        iCba->DrawNow();

        }

    }

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

// HandleItemModifiedL

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

//

void CGlxMSKController::HandleItemModifiedL(const RArray<TInt>& /*aItemIndexes*/, 

        MGlxMediaList* /*aList*/)

    {

    TRACER("CGlxMSKController::HandleItemModifiedL");

    // no implementation

    }

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

// HandleAttributesAvailableL

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

//

void CGlxMSKController::HandleAttributesAvailableL(TInt aItemIndex, 

        const RArray<TMPXAttribute>& /*aAttributes*/, 

        MGlxMediaList* aList)

    {

    TRACER("CGlxMSKController::HandleAttributesAvailableL");

    if( aItemIndex == aList->FocusIndex() )

        {        

        iAttributeAvailable = ETrue;

        SetStatusL(aList);

        }

    const TGlxMedia& mediaItem = aList->Item(aList->FocusIndex());      

    if( mediaItem.IsStatic() && aList->SelectionCount() <= 0 )

        {

        HBufC* openbuf =  StringLoader::LoadLC(R_GLX_MSK_OPEN);

        TPtr textopenptr = openbuf->Des();

        iCba->SetCommandL(CEikButtonGroupContainer::EMiddleSoftkeyPosition,

                EAknCmdOpen, textopenptr );

        iCba->DrawNow();

        CleanupStack::PopAndDestroy(openbuf);

        }

    }

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

// HandleFocusChangedL

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

//

void CGlxMSKController::HandleFocusChangedL(NGlxListDefs::TFocusChangeType /*aType*/, 

        TInt aNewIndex, TInt /*aOldIndex*/, 

        MGlxMediaList* aList)

    {  

    TRACER("CGlxMSKController::HandleFocusChangedL");

    // If new index is not equal to -1 (i.e., if there are items present), 

    // then check the media item

    if( (KErrNotFound != aNewIndex) && (aNewIndex == aList->FocusIndex()) )

        {

        SetStatusL(aList);

        }

    }

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

// HandleItemSelectedL

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

//

void CGlxMSKController::HandleItemSelectedL(TInt /*aIndex*/, TBool aSelected, 

        MGlxMediaList* aList)

    {

    TRACER("CGlxMSKController::HandleItemSelectedL");

    if( !aSelected )

        {

        SetStatusL(aList);

        }

    }

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

// HandleMessageL

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

//

void CGlxMSKController::HandleMessageL(const CMPXMessage& /*aMessage*/, 

        MGlxMediaList* /*aList*/)

    {

    TRACER("CGlxMSKController::HandleMessageL");

    // no implementation

    }

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

// Destructor

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

//

CGlxMSKController::~CGlxMSKController()

    {

    TRACER("CGlxMSKController::~CGlxMSKController");

    if ( iUiUtility )

        {

        iUiUtility->Close();

        iUiUtility = NULL;

        }

    }

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

// SetStatusOnViewActivationL

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

//

void CGlxMSKController::SetStatusOnViewActivationL( MGlxMediaList* aList )

    {

    TRACER("CGlxMSKController::SetStatusOnViewActivationL");

    // When going back from fullscreen to grid, when the attributes are already 

    // available in the cache, there is no HandleAttributeAvailable callback. Hence,

    // checking for medialist count.

    if( !iAttributeAvailable && (aList->Count(NGlxListDefs::ECountNonStatic) > 0))

        {

        SetStatusL(aList);

        }

    if( aList->Count() == 0 )

        {

        iCba->SetCommandSetL(R_AVKON_SOFTKEYS_OPTIONS_BACK);

        iCba->DrawNow();

        }

    }

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

//SetStatusL

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

//

void CGlxMSKController::SetStatusL(MGlxMediaList* aList)

    {

    TRACER("CGlxMSKController::SetStatusL");

    if( !aList->SelectionCount() > 0 )

        {

        //Get the current media item from medialist

        const TGlxMedia& mediaItem = aList->Item(aList->FocusIndex());      

        TBool isSystemItem = EFalse;    

        mediaItem.GetSystemItem(isSystemItem);

        HBufC* openbuf =  StringLoader::LoadLC(R_GLX_MSK_OPEN);

        TPtr textopen = openbuf->Des();

        HBufC* playbuf =  StringLoader::LoadLC(R_GLX_MSK_PLAY);

        TPtr textplay = playbuf->Des();

        // Check whether media item is a system item, for example Favourites album 

        // or a static item

        if( isSystemItem || mediaItem.IsStatic() )

            {

            iCba->SetCommandL(CEikButtonGroupContainer::EMiddleSoftkeyPosition,

                    EAknCmdOpen, textopen );

            iCba->DrawNow();

            }

        else

            {

            switch (mediaItem.Category())

                {

                case EMPXImage:

                    {

                     if (!iUiUtility->IsExitingState())

			            {

			             // When Marking is done and Exit key is pressed, we do not need to set

			             // MSK, as the application is exiting.

		                iCba->SetCommandL(CEikButtonGroupContainer::EMiddleSoftkeyPosition,

			                            EAknCmdOpen, textopen );

			            iCba->DrawNow();

			            }

                    break;

                    }

                case EMPXVideo:

                    {

                     // When Marking is done and Exit key is pressed, we do not need to set

			         // MSK, as the application is exiting.

                     if (!iUiUtility->IsExitingState())

			            {

					    iCba->SetCommandL(CEikButtonGroupContainer::EMiddleSoftkeyPosition,

			                            EAknCmdOpen, textplay );

			            iCba->DrawNow();

			            }

	                break;

                    }

                case EMPXAlbum:

                    {

                    iCba->SetCommandL(CEikButtonGroupContainer::EMiddleSoftkeyPosition,

                            EAknCmdOpen, textopen );

                    iCba->DrawNow();

                    break;

                    }

                case EMPXTag:

                    {

                    iCba->SetCommandL(CEikButtonGroupContainer::EMiddleSoftkeyPosition,

                            EAknCmdOpen, textopen );

                    iCba->DrawNow();

                    break;

                    }

                default:

                    {

                    iCba->SetCommandL(CEikButtonGroupContainer::EMiddleSoftkeyPosition,

                            EAknCmdOpen, textopen );

                    iCba->DrawNow();

                    break;

                    }                   

                }

            }

        CleanupStack::PopAndDestroy(playbuf);

        CleanupStack::PopAndDestroy(openbuf);

        }

    }

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

//SetMainStatusL

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

//

void CGlxMSKController::SetMainStatusL()

    {

    HBufC* openbuf =  StringLoader::LoadLC(R_GLX_MSK_OPEN);

    TPtr textopen = openbuf->Des();

    iCba->SetCommandL(CEikButtonGroupContainer::EMiddleSoftkeyPosition,

            EAknCmdOpen, textopen );

    iCba->DrawNow();

    CleanupStack::PopAndDestroy(openbuf);

    }