/*

* 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:    provide synchronized access to file systema and metadata source

*

*/

/**

 * @internal reviewed 03/07/2007 by Rowland Cook

 */

#include "glxcommandhandlerdrm.h"

#include <alf/alfvisual.h>

#include <alf/alfdisplay.h>

#include <mpxmediadrmdefs.h>

#include <mpxmediageneraldefs.h>

#include <glxattributecontext.h>

#include <glxcommandhandlers.hrh>

#include "glxdrmiconmanager.h"

#include <glxdrmutility.h>

#include <glxuiutility.h>

#include <glxtracer.h>

#include <glxlog.h>

#include <glxmediageneraldefs.h>

#include <glxthumbnailattributeinfo.h>

#include <glxthumbnailinfo.h>

#include <glxthumbnailutility.h>

#include <glxuistd.h>

#include <glxvisuallistmanager.h>

#include <mglxmedialist.h>

#include <mglxvisuallist.h>

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

// Two-phased constructor.

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

//

EXPORT_C CGlxCommandHandlerDrm* CGlxCommandHandlerDrm::NewL(

        MGlxMediaListProvider* aMediaListProvider,

        TBool aContainerList)

    {

    CGlxCommandHandlerDrm* self = new ( ELeave )

        CGlxCommandHandlerDrm(aMediaListProvider);

    CleanupStack::PushL( self );

    self->ConstructL(aContainerList);

    CleanupStack::Pop( self );

    return self;

    }

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

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

// might leave.

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

//

CGlxCommandHandlerDrm::CGlxCommandHandlerDrm(MGlxMediaListProvider*

                                                            aMediaListProvider)

        : CGlxMediaListCommandHandler(aMediaListProvider)

    {

    // Do nothing

    }

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

// Symbian 2nd phase constructor can leave.

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

//

void CGlxCommandHandlerDrm::ConstructL(TBool aIsContainerList)

    {

    TRACER("CGlxCommandHandlerDrm::ConstructL");

    iIsContainerList = aIsContainerList;

    iDrmUtility = CGlxDRMUtility::InstanceL();

    // Add supported commands

    TCommandInfo info( EGlxCmdDRMOpen );

    // Filter out static items

    info.iMinSelectionLength = 1;

    info.iDisallowSystemItems = aIsContainerList;

    AddCommandL(info);

    // Add view state dummy commands

    TCommandInfo view( EGlxCmdStateView );

    AddCommandL( view );

    TCommandInfo browse( EGlxCmdStateBrowse );

    AddCommandL( browse );

    // create fetch context 

    iFetchContext = CGlxDefaultAttributeContext::NewL();

    iFetchContext->AddAttributeL( KMPXMediaDrmProtected );

    iFetchContext->AddAttributeL( KMPXMediaGeneralCategory );

    iFetchContext->AddAttributeL( KMPXMediaGeneralUri );

    iFetchContext->AddAttributeL( KGlxMediaGeneralDimensions );

    iInFullScreen = EFalse;

    // get pointer to HUI utility

    iUiUtility = CGlxUiUtility::UtilityL();

    // get pointer to visual list manager

    iVisualListManager = CGlxVisualListManager::ManagerL();

    }

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

// Destructor

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

//

EXPORT_C CGlxCommandHandlerDrm::~CGlxCommandHandlerDrm()

    {        

    iDrmUtility->Close();

    if ( iUiUtility )

        {

        iUiUtility->Close();

        }

    if(iVisualListManager)

        {

        iVisualListManager->Close();

        }

    delete iFetchContext;

    delete iUrl;

    }

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

// ActivateL

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

//    

void CGlxCommandHandlerDrm::DoActivateL(TInt /*aViewId*/)

    {

    TRACER("CGlxCommandHandlerDrm::DoActivateL");

    MGlxMediaList& mediaList = MediaList();

    mediaList.AddContextL(iFetchContext, KGlxFetchContextPriorityNormal );

    mediaList.AddMediaListObserverL(this);

    // get handle to visual list

    iVisualList = iVisualListManager->ListL(mediaList,

                            *iUiUtility->Env(), *iUiUtility->Display());

    iVisualList->AddObserverL(this);

    // create DRM icon manager

    iDrmIconManager = CGlxDrmIconManager::NewL(mediaList, *iVisualList);

    }

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

// Deactivate

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

//      

void CGlxCommandHandlerDrm::Deactivate()

    {

    if( iDrmIconManager )

        {

        delete iDrmIconManager;

        iDrmIconManager = NULL;

        }

    if( iVisualList )

        {

        iVisualList->RemoveObserver(this);

        iVisualListManager->ReleaseList(iVisualList);

        iVisualList = NULL;

        }

    MGlxMediaList& mediaList = MediaList();

    mediaList.RemoveContext(iFetchContext);

    mediaList.RemoveMediaListObserver(this);

    }

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

// HandleItemAddedL

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

//  

void CGlxCommandHandlerDrm::HandleItemAddedL(TInt /*aStartIndex*/, 

                        TInt /*aEndIndex*/, MGlxMediaList* /*aList*/)

    {

    // No implementation

    }

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

// HandleMediaL

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

//  

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

    {

    // No implementation

    }

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

// HandleItemRemovedL

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

//  

void CGlxCommandHandlerDrm::HandleItemRemovedL(TInt /*aStartIndex*/, TInt /*aEndIndex*/, 

                                                                 MGlxMediaList* /*aList*/)

    {

    // No implementation

    }

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

// HandleItemModifiedL

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

//  

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

                                                                    MGlxMediaList* /*aList*/)

    {

    // No implementation

    }

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

// HandleAttributesAvailableL

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

//  

void CGlxCommandHandlerDrm::HandleAttributesAvailableL(TInt aItemIndex,     

    const RArray<TMPXAttribute>& /*aAttributes*/, MGlxMediaList* /*aList*/)

    {

    // if in full-screen consume rights if necessary  

    // only if we have received a newer thumbnail

    // do not consume rights if already consumed

    if(iInFullScreen && aItemIndex == MediaList().FocusIndex())

        {

        if(!iDrmRightsChecked)

            {

            ConsumeDRMRightsL();

            }           

        }

    }

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

// HandleFocusChangedL

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

//  

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

                        TInt /*aNewIndex*/, TInt /*aOldIndex*/, MGlxMediaList* /*aList*/)

    {

    // No implementation

    }

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

// HandleItemSelectedL

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

//  

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

                                                        MGlxMediaList* /*aList*/)

    {

    // No implementation

    }

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

// HandleMessageL

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

//

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

                                                        MGlxMediaList* /*aList*/)

    {

    // No implementation

    }

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

// HandleFocusChangedL

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

//  

void CGlxCommandHandlerDrm::HandleFocusChangedL( TInt /*aFocusIndex*/, 

                        TReal32 /*aItemsPerSecond*/, MGlxVisualList* /*aList*/,

                        NGlxListDefs::TFocusChangeType /*aType*/ )

    {

    // if in full-screen consume rights if necessary  

    if(iInFullScreen)

        {

        // reset rights consumed flag as we're moving to 

        // newer item

        iDrmRightsChecked = EFalse;

        ConsumeDRMRightsL();

        }

    }

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

// ConsumeDRMRightsL

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

//     

void CGlxCommandHandlerDrm::ConsumeDRMRightsL()

    {

    TRACER("CGlxCommandHandlerDrm::ConsumeDRMRightsL");

    MGlxMediaList& mediaList = MediaList();

    GLX_LOG_INFO("CGlxCommandHandlerDrm::ConsumeDRMRightsL have mlist");

    TInt index = mediaList.FocusIndex();

    User::LeaveIfError(index);          // FocusIndex() can return KErrNotFound

    const TGlxMedia&  item = mediaList.Item(index);

    const CGlxMedia* media = item.Properties();

    if(media)

        {

        if(item.IsDrmProtected())

            {

            GLX_LOG_INFO("CGlxCommandHandlerDrm::ConsumeDRMRightsL drm item");

            TMPXGeneralCategory cat = item.Category();

            const TDesC& uri = item.Uri();

            if( cat != EMPXNoCategory && uri.Length() > 0 )

                {

                GLX_LOG_INFO("CGlxCommandHandlerDrm::ConsumeDRMRightsL check rights");

                // check if rights have expired

                TBool expired = !iDrmUtility->ItemRightsValidityCheckL(uri, (cat == EMPXImage));

                if(expired)

                    {

                    GLX_LOG_INFO("CGlxCommandHandlerDrm::ConsumeDRMRightsL show expiry note");

                    if( iDrmIconManager )

                        {

                        iDrmIconManager->RemoveOverlayIcon( index, ETrue );    

                        }

                    // check if rights have expired

                    // show expiry note

                    iDrmUtility->ShowRightsInfoL(uri);

                    return;

                    }

                if( iDrmIconManager )

                    {    

                    iDrmIconManager->RemoveOverlayIcon( index, EFalse );    

                    }

                TSize size;

                if(EMPXImage == cat && item.GetDimensions(size))          

                    {

                    // check size

                    TSize bmpSize = ThumbnailSize(media);

                    if(ConsumeRightsBasedOnSize(index, size, bmpSize))

                        {

                        // pass URI to DRM utility

                        iDrmUtility->ConsumeRightsL(uri);

                        iDrmRightsChecked = ETrue;

                        }       

                    }

                }     

            }

        else

            {

            // not an DRM'd item no need to check again 

            iDrmRightsChecked = ETrue;

            }

        }

    }

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

// HandleSizeChanged

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

//  

void CGlxCommandHandlerDrm::HandleSizeChanged( const TSize& /*aSize*/, MGlxVisualList* /*aList*/ )

    {

    // No implementation

    }

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

// HandleVisualRemoved

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

//  

void CGlxCommandHandlerDrm::HandleVisualRemoved( const CAlfVisual* /*aVisual*/,  MGlxVisualList* /*aList*/ )

    {

    // No implementation

    }

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

// HandleVisualAddedL

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

//  

void CGlxCommandHandlerDrm::HandleVisualAddedL( CAlfVisual* /*aVisual*/, TInt /*aIndex*/, MGlxVisualList* /*aList*/ )

    {

    // No implementation

    }

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

// DoExecute - the relevant action for the command id

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

//

TBool CGlxCommandHandlerDrm::DoExecuteL(TInt aCommandId,

    MGlxMediaList& /*aList*/)

    {

    TRACER("CGlxCommandHandlerDrm::DoExecuteL");

    TBool handledCommand = ETrue;

    switch (aCommandId)

        {

        case EGlxCmdDRMOpen:

            // newly opened item

            // reset rights consumed flag

            iDrmRightsChecked = EFalse;

            // do not re-consume rights on return from UMP view

            // only consume if navigation has been forwards

            if ( iUiUtility->ViewNavigationDirection()

                                 ==  EGlxNavigationForwards )

                {

                ConsumeDRMRightsL();    

                }

            break;

        case EGlxCmdStateView:

            iInFullScreen = ETrue;

            handledCommand = EFalse;

            break;

        case EGlxCmdStateBrowse:

            iInFullScreen = EFalse;

            handledCommand = EFalse;

            if(iDrmIconManager)   

                {

                iDrmIconManager->AddOverlayIconsL();

                }

            break;          

        default:

            {

            handledCommand = EFalse;

            break;

            }

        }

    return handledCommand;

    }

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

// DoIsDisabled

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

//

TBool CGlxCommandHandlerDrm::DoIsDisabled(TInt /*aCommandId*/, 

                                        MGlxMediaList& /*aList*/) const 

    {

    return EFalse;

    }

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

// ConsumeRightsBasedOnSize - check if DRM rights should be consumed

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

//    

TBool CGlxCommandHandlerDrm::ConsumeRightsBasedOnSize(TInt aItemIndex,

                                       TSize aImageSize, TSize aBitmapSize)

    {

    TRACER("CGlxCommandHandlerDrm::ConsumeRightsBasedOnSize");

    // minimum size (120 x 90)

    TInt minSize = KGlxThumbnailDrmWidth * KGlxThumbnailDrmHeight;

    // size of actual image

    TInt imgSize = aImageSize.iWidth * aImageSize.iHeight;

    // bitmap size

    TInt bmpSize = aBitmapSize.iWidth * aBitmapSize.iHeight;

    // size of HUI display

    TSize dispSize = iUiUtility->DisplaySize();

    // Get size of visual based on aspect ratio of image

    TSize visImgSize;

    if(iVisualList)

        {

        CAlfVisual* vis = iVisualList->Visual(aItemIndex);

        if(vis)

            {

            if(dispSize.iWidth>0 && dispSize.iHeight>0)

                {

                TReal widthRatio = (TReal)aImageSize.iWidth/(TReal)dispSize.iWidth;

                TReal heightRatio = (TReal)aImageSize.iHeight/(TReal)dispSize.iHeight;

                if(widthRatio > heightRatio)

                    {

                    dispSize.iHeight = aImageSize.iHeight / widthRatio;

                    }

                else

                    {

                    if(heightRatio>0)

                        {

                        dispSize.iWidth = aImageSize.iWidth / heightRatio;

                        }

                    }

                }

            }

        }

    TInt visSize2 = dispSize.iWidth * dispSize.iHeight;

    // if thumbnail is smaller than visual use this for comparison

    if(bmpSize < visSize2)

        {

        visSize2 = bmpSize;

        }

    // is bmp smaller than 1/4 of image size    

    if(imgSize/4 < minSize)

        {

        minSize = imgSize/4;

        }

    //

    if(visSize2 >= minSize)

        {

        GLX_LOG_INFO("CGlxCommandHandlerDrm::ConsumeRightsBasedOnSize true");

        iDrmRightsChecked = ETrue;

        }