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/*
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* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description: Media item
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*
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*/
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#ifndef C_GLXMEDIA_H
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#define C_GLXMEDIA_H
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#include <e32base.h>
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#include <glxmediageneraldefs.h>
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#include <mpxmediageneraldefs.h>
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#include "glxmediaid.h"
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#include "glxthumbnailinfo.h"
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class CGlxMedia;
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class CGlxMediaList;
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class CGlxThumbnailAttribute;
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class CGlxUstringConverter;
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class MGlxMediaUser;
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class TCoordinate;
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/**
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* TGlxMedia
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*
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* Reference to a media item in the item pool.
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*
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* @ingroup mlm_media_list_manager_design
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*/
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NONSHARABLE_CLASS( TGlxMedia )
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{
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friend class CGlxMediaList; // To avoid exposing a SetProperties(...) interface
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//Only to access AttributeTypeId to get the MPX attribute type
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friend class GlxUStringConverter;
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public:
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inline TGlxMedia( const TGlxMediaId& aId ) : iId( aId ) { iItem = NULL; };
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inline TGlxMedia( const TGlxMediaId& aId, CGlxMedia* aProperties ) : iId( aId ) { iItem = aProperties; };
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inline TGlxMedia( const TGlxMedia& aItem ) : iId( aItem.iId ) { iItem = aItem.iItem; };
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/**
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* Constructor
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* Not inlined as not intended to be used outside the dll
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* Only intended to be used for static items
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* @param aMedia Media object from which to take the id, and to which to point
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*/
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TGlxMedia( CGlxMedia& aMedia );
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/**
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* @return Id of this media item
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*/
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inline TGlxMediaId Id() const { return iId; };
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/**
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* @return Properties object of this media item
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* @note May return NULL if the properties are not yet available
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*/
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inline const CGlxMedia* Properties() const { return iItem; };
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/**
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* Compare two media items by id
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* This can be used in array's Find etc. methods
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*/
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IMPORT_C static TBool MatchById(const TGlxMedia& aMedia1, const TGlxMedia& aMedia2);
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/**
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* Tests to see if the Media is a static.
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* returns False if item is not static
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* True is item is static
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*/
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IMPORT_C TBool IsStatic() const;
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/**
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* Get the command associated with a static media item.
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* @param aCmd Reference to variable into which to place the command
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* @return EFalse if unable to get command - aCmd is unchanged.
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* ETrue if command successfully put in aCmd.
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*/
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IMPORT_C TBool GetStaticItemCommand(TInt& aCmd) const;
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/**
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* Get the date associated with the media.
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* @param aDate Reference to variable into which to place the date
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* @return EFalse if unable to get date - aDate is unchanged.
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* ETrue if date successfully put in aDate.
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*/
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IMPORT_C TBool GetDate(TTime& aDate) const;
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/**
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* Get the date associated with the media.
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* @param aDate Reference to variable into which to place the date
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* @return EFalse if unable to get date - aDate is unchanged.
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* ETrue if date successfully put in aDate.
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*/
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IMPORT_C TBool GetLastModifiedDate(TTime& aDate) const;
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/**
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* Get the general category associated with the media.
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* @param aCategory Reference to variable into which to place the category
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* @return The category or EMPXNoCategory if unsuccessful.
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*/
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IMPORT_C TMPXGeneralCategory Category() const;
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/**
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* Get the dimensions associated with the media.
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* @param aSize Reference to variable into which to place the dimensions
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* @return EFalse if unable to get dimensions - aSize is unchanged.
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* ETrue if dimensions successfully put in aSize.
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*/
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IMPORT_C TBool GetDimensions(TSize& aSize) const;
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/**
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* Get the (file) size associated with the media.
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* @param aSize Reference to variable into which to place the (file) size
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* @return EFalse if unable to get size - aSize is unchanged.
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* ETrue if size successfully put in aSize.
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*/
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IMPORT_C TBool GetSize(TUint& aSize) const;
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/**
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* Get the duration associated with the media.
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* @param aDuration Reference to variable into which to place the duration
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* @return EFalse if unable to get size - aDuration is unchanged.
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* ETrue if duration successfully put in aDuration.
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*/
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IMPORT_C TBool GetDuration(TReal32& aDuration) const;
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/**
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* Get the frame count associated with the media.
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* @param aFrameCount Reference to variable into which to place count
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* @return EFalse if unable to get count - aFrameCount is unchanged.
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* ETrue if count successfully put in aFrameCount.
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*/
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IMPORT_C TBool GetFrameCount(TInt& aFrameCount) const;
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/**
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* Get the general count associated with the media.
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* @param aGeneralCount Reference to variable into which to place count
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* @return EFalse if unable to get count - aGeneralCount is unchanged.
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* ETrue if count successfully put in aGeneralCount.
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*/
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IMPORT_C TBool GetContainedItemCount(TInt& aGeneralCount) const;
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/**
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* Get the general count associated with the media.
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* @param aGeneralCount Reference to variable into which to place count
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* @return EFalse if unable to get count - aGeneralCount is unchanged.
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* ETrue if count successfully put in aGeneralCount.
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*/
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IMPORT_C TBool GetSlideshowPlayableContainedItemCount(TInt& aGeneralCount) const;
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/**
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* Get the coordinate associated with the media.
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* @param aCoordinate Reference to variable into which to place the coordinate
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* @return EFalse if unable to get coordinate - aCoordinate is unchanged.
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* ETrue if coordinate successfully put in aCoordinate.
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*/
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IMPORT_C TBool GetCoordinate(TCoordinate& aCoordinate) const;
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/**
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* Get the Icon Info associated with the media.
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* @param aInfo Reference to variable into which to place the icon Info
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* @return EFalse if unable to get info - aInfo is unchanged.
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* ETrue if info successfully put in aInfo.
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*/
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IMPORT_C TBool GetIconInfo(TIconInfo& aInfo) const;
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/**
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* Returns the DRM protection indication associated with the media.
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* @return EFalse if not protected.
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* ETrue if protected (also by default).
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*/
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IMPORT_C TBool IsDrmProtected() const;
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/**
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* Get the DRM protection indicator associated with the media.
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* @param aIsProtected Reference to variable into which to place the DRM indicator
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* @return EFalse if unable to get indicator - aIsProtected is unchanged.
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* ETrue if indicator successfully put in aIsProtected.
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*/
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IMPORT_C TBool GetDrmProtected(TBool& aIsProtected) const;
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/**
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* Get the DRM protection indicator associated with the media.
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* @param aIsProtected Reference to variable into which to place the DRM indicator
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* @return EFalse if unable to get indicator - aIsProtected is unchanged.
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* ETrue if indicator successfully put in aIsProtected.
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*/
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IMPORT_C TBool GetDrmValidity(TGlxMediaGeneralRightsValidity& aIsValid) const;
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/**
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* Get the System Item indicator associated with the media.
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* @param aIsSystemItem Reference to variable into which to place the SI indicator
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* @return EFalse if unable to get indicator - aIsSystemItem is unchanged.
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* ETrue if indicator successfully put in aIsSystemItem.
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*/
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IMPORT_C TBool GetSystemItem(TBool& aIsSystemItem) const;
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/**
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* Get the title associated with the media.
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* @return descriptor reference to title if found, else to an empty descriptor.
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*/
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IMPORT_C const TDesC& Title() const;
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/**
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* Get the subtitle associated with the media.
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* @return descriptor reference to subtitle if found, else to an empty descriptor.
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*/
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IMPORT_C const TDesC& SubTitle() const;
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/**
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* Get the comment associated with the media.
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* @return descriptor reference to comment if found, else to the NULL descriptor.
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*/
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IMPORT_C const TDesC& Comment() const;
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/**
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* Get the URI associated with the media.
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* @return Uri for success or KNullDesC for failure
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*/
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IMPORT_C const TDesC& Uri() const;
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/**
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* Get the MimeType associated with the media.
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* @return MimeType for success or KNullDesC for failure
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*/
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IMPORT_C const TDesC& MimeType() const;
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/**
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* Get a thumbnail attribute associated with the media.
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* @param aAttribute The attribute to obtain
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* @return A pointer to the thumbnail attribute or NULL if unsuccessful.
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*/
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IMPORT_C const CGlxThumbnailAttribute* TGlxMedia::ThumbnailAttribute(
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TMPXAttribute& aAttribute) const;
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/**
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* Find the closest available thumbnail to a given size.
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* @param aAttribute Set to the closest available thumbnail, if any
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* @param aDesiredSize Size of thumbnail required
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* @param aDrmValid If false, the function will not return a thumbnail
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bigger than the requested size
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* @return EFalse if no thumbnails available.
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* ETrue if aAttribute has been set.
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*/
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IMPORT_C TBool GetClosestThumbnail( TMPXAttribute& aAttribute,
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const TSize& aDesiredSize, TBool aDrmValid ) const;
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/**
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* Can the media be played in slideshow
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* @return EFalse if not playable.
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* ETrue if playable.
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*/
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IMPORT_C TBool IsSlideShowPlayableContent() const;
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/**
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* Returns the IdSpaceId associated with the media.
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* @return TGlxIdSpaceId of the media
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*/
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IMPORT_C TGlxIdSpaceId IdSpaceId() const;
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/**
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* Set media object pointer
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* not inlined, since will not be exported
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* @param aMedia Media object, or NULL
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* @param aMediaUser User of media
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* @param aIndex Index of media object in media list user
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*/
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void SetMedia( CGlxMedia* Media, MGlxMediaUser& aMediaUser, TInt aIndex = KErrNotFound);
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/**
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* Update media object
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* Used to update the index into the media list user
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* @param aMediaUser User of media
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* @param aIndex Index of media object in media list user
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*/
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void UpdateMedia( MGlxMediaUser& aMediaUser, TInt aIndex );
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IMPORT_C void DeleteLocationAttribute();
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private:
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/**
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* Unique identifier of this media item
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*/
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TGlxMediaId iId;
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/**
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* Pointer to the shared instance of media item properties
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* Not owned
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*/
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CGlxMedia* iItem;
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};
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/**
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* CGlxMedia
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*
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* Basic properties for a media item
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*
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* @lib glxmedialists.lib
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*/
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NONSHARABLE_CLASS( CGlxMedia ) : public CBase
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{
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public:
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/**
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* Constructor
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* @param aId media item ID
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*/
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IMPORT_C CGlxMedia( const TGlxMediaId& aId );
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/**
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* Destructor
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*/
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IMPORT_C ~CGlxMedia();
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/**
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* @param aId New Id for this media item.
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*/
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inline void SetId(const TGlxMediaId& aId) { iId = aId; } // TEMPORARY, merge to attribute array
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/**
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* @return Id of this media item
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*/
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inline TGlxMediaId Id() const { return iId; }; // TEMPORARY, merge to attribute array
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public:
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/**
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* The attributes provided in this media object
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*
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* @return array of attributes indicating the attributes for the values contained
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* in this object
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*/
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inline const TArray<TMPXAttribute> Attributes() const;
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/**
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* Does this object contain the value for a given attribute
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*
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* @param aAttribute, the specified attribute
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* @return whether supported or not
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*/
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inline TBool IsSupported(const TMPXAttribute& aAttribute) const;
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/**
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* The number of attribute values provided in this media object
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*
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* @return count of attribute values in this object
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*/
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inline TInt Count() const;
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/**
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* The attribute for a specific index
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*
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* @param aIndex the index from 0 to Count()-1, covering all the values
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* provided in this object
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* @return the attribute corresponding to the value at the specified index
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*/
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inline const TMPXAttribute& Attribute(TInt aIndex) const;
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/**
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* The index of a given attribute
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*
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* @param aAttribute the specified attribute
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* @return the index, or KErrNotFound if not present in this object
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*/
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inline TInt Index(const TMPXAttribute& aAttribute) const;
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/**
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* The value for a specific attribute
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*
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* @param aAttribute, the attribute whose value is queried
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* @return value of the attribute
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*/
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template<typename T>
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inline T ValueTObject(const TMPXAttribute& aAttribute) const;
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/**
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* Get the value for a specific attribute, indicating success
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*
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* @param aValue, reference to object into which to place the value
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* @param aAttribute, the attribute whose value is queried
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* @return EFalse if unable to get value - aValue is unchanged.
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* ETrue if value successfully put in aValue.
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*/
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template<typename T>
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inline TBool GetValueTObject(T& aValue, const TMPXAttribute& aAttribute) const;
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/**
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* The value for a specific attribute
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*
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* @param aAttribute, the attribute whose value is queried
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* @return value of the attribute
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*/
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IMPORT_C const TDesC& ValueText(const TMPXAttribute& aAttribute) const;
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/**
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* Get the text for a specific attribute, indicating success
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*
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* @param aText, reference to object into which to place a pointer to the text
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* @param aAttribute, the attribute whose value is queried
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* @return EFalse if unable to get text - aText is unchanged.
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* ETrue if pointer to text successfully put in aText.
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*/
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IMPORT_C TBool GetValueText(TPtrC& aText,
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const TMPXAttribute& aAttribute) const;
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/**
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* The value for a specific attribute
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*
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* @param aAttribute, the attribute whose value is queried
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426 |
* @return value of the attribute
|
|
427 |
*/
|
|
428 |
IMPORT_C const CBase* ValueCObject(const TMPXAttribute& aAttribute) const;
|
|
429 |
|
|
430 |
/**
|
|
431 |
* Clears all the attributes and values
|
|
432 |
*/
|
|
433 |
IMPORT_C void Reset();
|
|
434 |
|
|
435 |
/**
|
|
436 |
* Add a new attribute value to this object, or modifies existing
|
|
437 |
* value if already present
|
|
438 |
*
|
|
439 |
* @param aAttribute the attribute whose value is added/modified
|
|
440 |
* @return value of the attribute
|
|
441 |
*/
|
|
442 |
IMPORT_C void SetTextValueL(const TMPXAttribute& aAttribute,
|
|
443 |
const TDesC& aValue);
|
|
444 |
|
|
445 |
/**
|
|
446 |
* Add a new attribute value to this object, or modifies existing
|
|
447 |
* value if already present
|
|
448 |
*
|
|
449 |
* @param aAttribute the attribute whose value is added/modified
|
|
450 |
* @return value of the attribute
|
|
451 |
*/
|
|
452 |
template<typename T>
|
|
453 |
inline void SetTObjectValueL(const TMPXAttribute& aAttribute, T aValue);
|
|
454 |
|
|
455 |
/**
|
|
456 |
* Add a new attribute value to this object, or modifies existing
|
|
457 |
* value if already present
|
|
458 |
*
|
|
459 |
* @param aAttribute the attribute whose value is added/modified
|
|
460 |
* Takes ownership, unless leaves.
|
|
461 |
* @return value of the attribute
|
|
462 |
*/
|
|
463 |
IMPORT_C void SetCObjectValueL(const TMPXAttribute& aAttribute, CBase* aValue_TakesOwnership);
|
|
464 |
|
|
465 |
/**
|
|
466 |
* Delete an attribute of the media item
|
|
467 |
* @param aAttribute The attribute that is deleted
|
|
468 |
*/
|
|
469 |
IMPORT_C void DeleteAttribute(const TMPXAttribute& aAttribute);
|
|
470 |
|
|
471 |
/**
|
|
472 |
* Delete an attribute of the media item
|
|
473 |
* @param aAttributeIndex index of the attribute to delete
|
|
474 |
*/
|
|
475 |
void DeleteAttribute( TInt aAttributeIndex );
|
|
476 |
|
|
477 |
/**
|
|
478 |
* Handles modification of item
|
|
479 |
*
|
|
480 |
* @param aAttributes Attributes that have been modified
|
|
481 |
*/
|
|
482 |
IMPORT_C void HandleModified(const RArray<TMPXAttribute>& aAttributes);
|
|
483 |
|
|
484 |
/**
|
|
485 |
* Add a new attribute value to this object, or modifies existing
|
|
486 |
* value if already present
|
|
487 |
*
|
|
488 |
* @param aAttribute the attribute whose value is added/modified
|
|
489 |
* @param aValue value of the attribute
|
|
490 |
* @param aType type of the attribute
|
|
491 |
*/
|
|
492 |
IMPORT_C void SetValueL(const TMPXAttribute& aAttribute, TAny* aValue, TMPXAttributeType aType);
|
|
493 |
|
|
494 |
public: // Media-list-manager-internal management interface
|
|
495 |
/**
|
|
496 |
* Reserve space for users to be added, so AddUser can be called with
|
|
497 |
* danger of failure
|
|
498 |
* This should not be exported
|
|
499 |
* @param aReservationCount space is allocated for this number of users
|
|
500 |
*/
|
|
501 |
void ReserveUsersL( TInt aReservationCount );
|
|
502 |
|
|
503 |
/**
|
|
504 |
* Add the list as a user of the media object
|
|
505 |
* The index into list is also stored, to allow clients that
|
|
506 |
* are processing users of a media, to index directly into the list
|
|
507 |
* This should not be exported
|
|
508 |
* Reservation must have been made before calling this
|
|
509 |
* @param aUser the object to be added as a user
|
|
510 |
* @param aIndex the index into the media list user
|
|
511 |
*/
|
|
512 |
void AddUser( MGlxMediaUser& aUser, TInt aIndex );
|
|
513 |
|
|
514 |
/**
|
|
515 |
* Remove the list as a user list of the media object
|
|
516 |
* This should not be exported
|
|
517 |
* @param aUser the user to be removed
|
|
518 |
*/
|
|
519 |
void RemoveUser( const MGlxMediaUser& aUser );
|
|
520 |
|
|
521 |
/**
|
|
522 |
* Determines if the list is a user
|
|
523 |
* This should not be exported
|
|
524 |
* @return ETrue if the object is a user of this media object
|
|
525 |
*/
|
|
526 |
TBool IsUser( const MGlxMediaUser& aUser ) const;
|
|
527 |
|
|
528 |
/**
|
|
529 |
* Count of user lists
|
|
530 |
* This should not be exported
|
|
531 |
* @return The number of users of this media object
|
|
532 |
*/
|
|
533 |
TInt UserCount() const;
|
|
534 |
|
|
535 |
/**
|
|
536 |
* User by index
|
|
537 |
* This should not be exported
|
|
538 |
* @param aIndex index of the user
|
|
539 |
* @return User by index
|
|
540 |
*/
|
|
541 |
MGlxMediaUser& User(TInt aIndex) const;
|
|
542 |
|
|
543 |
/**
|
|
544 |
* Index in the media list user
|
|
545 |
* This should not be exported
|
|
546 |
* @param aIndex index of the user
|
|
547 |
* @return Index in the media list user
|
|
548 |
*/
|
|
549 |
TInt IndexInUser(TInt aIndex) const;
|
|
550 |
|
|
551 |
/**
|
|
552 |
* Update index in the media list user
|
|
553 |
* This should not be exported
|
|
554 |
* @param aUser the user to be updated
|
|
555 |
* @param aIndex the index into the media list user
|
|
556 |
*/
|
|
557 |
void UpdateUser( MGlxMediaUser& aUser, TInt aIndex );
|
|
558 |
|
|
559 |
/**
|
|
560 |
* Returns the TMPXAttributeType corresponding to TMPXAttribute
|
|
561 |
* @param aAttribute the attribute whose type is required
|
|
562 |
*/
|
|
563 |
TMPXAttributeType AttributeTypeId(const TMPXAttribute& aAttribute) const;
|
|
564 |
|
|
565 |
private:
|
|
566 |
struct TValue
|
|
567 |
{
|
|
568 |
inline TValue(TAny* aValue, TMPXAttributeType aType);
|
|
569 |
TAny* iValue;
|
|
570 |
TMPXAttributeType iType;
|
|
571 |
};
|
|
572 |
|
|
573 |
/**
|
|
574 |
* Deletes a value in the right way, depending on its type
|
|
575 |
*/
|
|
576 |
void Delete(TValue& aValue);
|
|
577 |
|
|
578 |
private:
|
|
579 |
struct TMediaUser
|
|
580 |
{
|
|
581 |
/**
|
|
582 |
* Find match by MGlxMediaUser
|
|
583 |
*/
|
|
584 |
static TBool MatchUser(const TMediaUser& aUser1,
|
|
585 |
const TMediaUser& aUser2);
|
|
586 |
|
|
587 |
/**
|
|
588 |
* Constructor
|
|
589 |
*/
|
|
590 |
TMediaUser(MGlxMediaUser* aMediaUser, TInt aIndex = KErrNotFound);
|
|
591 |
|
|
592 |
MGlxMediaUser* iMediaUser;
|
|
593 |
TInt iIndex;
|
|
594 |
};
|
|
595 |
|
|
596 |
private:
|
|
597 |
RArray<TValue> iValues; // Array index corresponds to iAttributes
|
|
598 |
RArray<TMPXAttribute> iAttributes; // Array index corresponds to iValues
|
|
599 |
|
|
600 |
/**
|
|
601 |
* Media item id
|
|
602 |
*/
|
|
603 |
TGlxMediaId iId; // TEMPORARY, merge to attribute array
|
|
604 |
|
|
605 |
/**
|
|
606 |
* Objects by which this object is used by. When the array is empty,
|
|
607 |
* the item does not have any users (and can be deleted).
|
|
608 |
* Only exposed to CGlxMediaListManager
|
|
609 |
*/
|
|
610 |
RArray< TMediaUser > iUsers; // TEMPORARY, merge to attribute array
|
|
611 |
|
|
612 |
/// Number of users currently reserved on iUsers
|
|
613 |
__DEBUG_ONLY( TInt _iUserReservationCount; )
|
|
614 |
|
|
615 |
__DECLARE_TEST;
|
|
616 |
};
|
|
617 |
|
|
618 |
#include "glxmedia.inl"
|
|
619 |
|
|
620 |
#endif // C_GLXMEDIA_H
|