/*

* 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:    DRM utility implementation

*

*/

/**

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

 */

#ifndef C_GLXDRMUTILITY_H

#define C_GLXDRMUTILITY_H

// INCLUDES

#include <e32base.h>

// FORWARD DECLARATIONS

class CDRMHelper;

namespace ContentAccess

    {

    class CContent;

    class CData;

    class CManager;

    }

// DATA TYPES

/**

 * Specifies a type of automated content.

 *

 * @ingroup drm_utility

 */

enum TGlxDrmAutomatedType

    {

    EGlxDrmAutomatedTypeWallpaper   /**< Set image as wallpaper */

    };

// CLASS DECLARATION

/**

 * DRM utility class to provide DRM-related functionality used in many places.

 *

 * @ingroup drm_utility

 * @author M Byrne

 */

NONSHARABLE_CLASS( CGlxDRMUtility ) : public CBase

    {

public:

    /**

     * Get the instance of the DRM utility, and increase its reference count.

     *

     * @return Pointer to singleton object.

     */

    IMPORT_C static CGlxDRMUtility* InstanceL();

    /**

     * Release the instance of the DRM utility by decreasing its reference

     * count.  If the count becomes zero, the utility is deleted.

     */

    IMPORT_C void Close();

    /**

     * Destructor.

     */

    ~CGlxDRMUtility();

    /**

     * Check whether DRM rights are valid for specified item

     * is called before right is consumed and for all items (focused or unfocused).

     * 

     * @param aUri URI of the media item.

     * @param aCheckViewRights, check view rights if true, play if false

     * @return ETrue if valid rights exist for the media item.

     */

    IMPORT_C TBool ItemRightsValidityCheckL(const TDesC& aUri, TBool aCheckViewRights);

    /**

     * Check whether DRM rights are valid for specified item

     * If the rights were just consumed, then allow to display

     * Otherwise, obtain current rights

     * is called after right is consumed and for only focused/displayed item.

     * 

     * @param aUri URI of the media item.

     * @param aCheckViewRights, check view rights if true, play if false

     * @return ETrue if valid rights exist for the media item.

     */

    IMPORT_C TBool DisplayItemRightsCheckL(const TDesC& aUri, TBool aCheckViewRights);

    /**

      * Consume rights for specified item

      * Caches item so that a client has right to display the item

      *

      * @param aUri URI for item

      * @return ETrue to no error in rights consumption

      */

    IMPORT_C TBool ConsumeRightsL(const TDesC& aUri);

    /**

     * Clears Last Consumed Uri

     */

    IMPORT_C void ClearLastConsumedItemUriL();

    /**

     * Test whether a media item is OMA DRM 2.0 protected and has an associated

     * info URL.

     * @param aUri URI of the media item.

     * @return ETrue if it does.

     */

    IMPORT_C TBool CanShowInfoOnlineL(const TDesC& aUri);

    /**

     * Open the associated info URL for a media item in the browser.

     * @param aUri URI of the media item.

     */

    IMPORT_C void ShowInfoOnlineL(const TDesC& aUri);

    /**

     * Test whether a media item can be set as automated content.     *

     * @param aUri URI of the media item.

     * @param aType Automated content type, eg. wallpaper.

     * @return ETrue if it can.

     */

    IMPORT_C TBool CanSetAsAutomatedL(const TDesC& aUri, TGlxDrmAutomatedType aType);

    /**

     * Set a media item as automated content.

     * @param aUri URI of the media item.

     * @param aType Automated content type, eg. wallpaper.

     */

    IMPORT_C void SetAsAutomatedL(const TDesC& aUri, TGlxDrmAutomatedType aType);

    /**

     * Show DRM details for specified item.

     * @param aUri URI of the media item.

     */

    IMPORT_C void ShowDRMDetailsPaneL(const TDesC& aUri);

    /**

      * Ask DRM manager if file is forward locked

      */

    IMPORT_C TBool IsForwardLockedL(const TDesC& aUri);

    /**

      * Show rights info

      * @param aUri URI of the media item.

      */

    IMPORT_C void ShowRightsInfoL(const TDesC& aUri);

    /**

      * Get size of thumbnail to be requested for DRM invalid item

      * @param aSize size of image

      * @return suggested thumbnail size (1/4 of original size)

      */

    IMPORT_C TSize DRMThumbnailSize(TSize& aSize);

private:

    /**

     * C++ default constructor.

     */

    CGlxDRMUtility();

    /**

     * By default Symbian 2nd phase constructor is private.

     */

    void ConstructL();

private:

    /** Single instance of CGlxDRMUtility */

    static CGlxDRMUtility* iDrmUtility;

    /** Reference count for DRM utility */

    TInt iRefCount;

    /** Content access manager */

    ContentAccess::CManager* iCManager;

    /** DRM helper used by the utility owned */

    CDRMHelper* iDrmHelper;

    /** Last consumed item URI */

    HBufC* iLastConsumedItemUri;

    };

#endif  // C_GLXDRMUTILITY_H

// End of File