diff -r 82baf59ce8dd -r ecf06a08d4d9 mpdata/src/mpmpxcollectiondata_p.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpdata/src/mpmpxcollectiondata_p.cpp	Mon May 03 12:29:20 2010 +0300
@@ -0,0 +1,518 @@
+/*
+* Copyright (c) 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: Music Player collection data - private implementation.
+*
+*/
+
+#include <thumbnaildata.h>
+#include <thumbnailobjectsource.h>
+
+#include <mpxmedia.h>
+#include <mpxmediacontainerdefs.h>
+#include <mpxmediaarray.h>
+#include <mpxmediageneraldefs.h>
+#include <mpxmediamusicdefs.h>
+
+#include "mpmpxcollectiondata_p.h"
+#include "mptrace.h"
+
+_LIT( KSong, " song" );
+_LIT( KSongs, " songs" );
+
+/*!
+    \class MpMpxCollectionDataPrivate
+    \brief Music Player collection data - private implementation.
+
+    This is a private implementation of the collection data interface.
+*/
+
+/*!
+ \internal
+ */
+MpMpxCollectionDataPrivate::MpMpxCollectionDataPrivate( MpMpxCollectionData *wrapper )
+    : q_ptr( wrapper ),
+      iContainerMedia(0),
+      iMediaArray(0),
+      iContext( ECollectionContextUnknown ),
+      iCachedRemovedItem ( 0 )
+{
+    TX_LOG
+}
+
+/*!
+ \internal
+ */
+MpMpxCollectionDataPrivate::~MpMpxCollectionDataPrivate()
+{
+    TX_ENTRY
+    delete iContainerMedia;
+    delete iCachedRemovedItem;
+    TX_EXIT
+}
+
+/*!
+ \internal
+ */
+TCollectionContext MpMpxCollectionDataPrivate::context() const
+{
+    return iContext;
+}
+
+/*!
+ \internal
+ */
+int MpMpxCollectionDataPrivate::count() const
+{
+    if ( iMediaArray ) {
+        return iMediaArray->Count();
+    }
+    return 0;
+}
+
+/*!
+ \internal
+ */
+QString MpMpxCollectionDataPrivate::collectionTitle() const
+{
+    TX_ENTRY
+    QString title;
+    if ( iContainerMedia && iContainerMedia->IsSupported( KMPXMediaGeneralTitle ) ) {
+        const TDesC& titleText = iContainerMedia->ValueText( KMPXMediaGeneralTitle );
+        if ( titleText.Compare( KNullDesC ) != 0 ) {
+            title = QString::fromUtf16( titleText.Ptr(), titleText.Length() );
+        }
+    }
+    TX_EXIT_ARGS("title =" << title);
+    return title;
+}
+
+/*!
+ \internal
+ */
+QString MpMpxCollectionDataPrivate::itemData( int index, MpMpxCollectionData::DataType type ) const
+{
+    TX_ENTRY_ARGS("index=" << index << ", type=" << type);
+    QString data;
+    TRAPD(err, DoGetDataL(index, type, data));
+    if ( err != KErrNone ) {
+        TX_LOG_ARGS("Error: " << err << "; should never get here.");
+    }
+    TX_EXIT
+    return data;
+}
+
+/*!
+ \internal
+ */
+bool MpMpxCollectionDataPrivate::isAutoPlaylist()
+{
+    TX_ENTRY
+    if ( iContext != ECollectionContextPlaylistSongs ) {
+        TX_EXIT
+        return false;
+    }
+
+    bool isAuto = false;
+    TRAPD(err, isAuto = DoIsAutoPlaylistL());
+    if ( err == KErrNone ) {
+        TX_LOG_ARGS("isAuto=" << isAuto);
+    }
+    else {
+        TX_LOG_ARGS("Error: " << err << "; should never get here.");
+    }
+    TX_EXIT
+    return isAuto;
+}
+
+/*!
+ \internal
+ */
+bool MpMpxCollectionDataPrivate::isAutoPlaylist( int index )
+{
+    TX_ENTRY_ARGS("index=" << index);
+    if ( iContext != ECollectionContextPlaylists ) {
+        TX_EXIT
+        return false;
+    }
+
+    bool isAuto = false;
+    TRAPD(err, isAuto = DoIsAutoPlaylistL(index));
+    if ( err == KErrNone ) {
+        TX_LOG_ARGS("isAuto=" << isAuto);
+    }
+    else {
+        TX_LOG_ARGS("Error: " << err << "; should never get here.");
+    }
+    TX_EXIT
+    return isAuto;
+}
+
+/*!
+ \internal
+ */
+int MpMpxCollectionDataPrivate::itemCount( int index )
+{
+    TX_ENTRY_ARGS("index=" << index);
+    int count = 0;
+    TRAPD(err, count = DoGetItemCountL(index));
+    if ( err == KErrNone ) {
+        TX_LOG_ARGS("count=" << count);
+    }
+    else {
+        TX_LOG_ARGS("Error: " << err << "; should never get here.");
+    }
+    TX_EXIT
+    return count;
+}
+
+/*!
+ \internal
+ */
+int MpMpxCollectionDataPrivate::containerId()
+{
+    int id = -1;
+    TRAPD( err, id = DoGetContainerIdL() );
+    if ( err == KErrNone ) {
+        TX_LOG_ARGS("id=" << id);
+    }
+    else {
+        TX_LOG_ARGS("Error: " << err << "; should never get here.");
+    }
+    TX_EXIT
+    return id;
+}
+
+/*!
+ \internal
+ */
+int MpMpxCollectionDataPrivate::itemId(int index)
+{
+    TX_ENTRY_ARGS("index=" << index);
+    int id = -1;
+    TRAPD(err, id = DoGetItemIdL(index));
+    if ( err == KErrNone ) {
+        TX_LOG_ARGS("id=" << id);
+    }
+    else {
+        TX_LOG_ARGS("Error: " << err << "; should never get here.");
+    }
+    TX_EXIT
+    return id;
+}
+
+/*!
+ \internal
+ */
+void MpMpxCollectionDataPrivate::removeItem(int index)
+{
+    TX_ENTRY_ARGS("index=" << index);
+     TRAPD(err,  DoRemoveItemL(index));
+    if ( err != KErrNone ) {
+        TX_LOG_ARGS("Error: " << err << "; should never get here.");
+    }
+    TX_EXIT
+}
+
+/*!
+ \internal
+ */
+bool MpMpxCollectionDataPrivate::testCachedItem( int itemId )
+{
+    TX_ENTRY_ARGS( "itemId=" << itemId);
+    bool match = false;
+    TRAPD( err, match = DoTestCachedItemL( itemId ) );
+    if ( err == KErrNone ) {
+        TX_LOG_ARGS("match=" << match);
+    }
+    else {
+        TX_LOG_ARGS("Error: " << err << "; should never get here.");
+    }
+    TX_EXIT
+    return match;
+}
+
+/*!
+ \internal
+ */
+void MpMpxCollectionDataPrivate::insertCachedItem(int index)
+{
+    TX_ENTRY_ARGS("index=" << index);
+    iMediaArray->Insert( iCachedRemovedItem, index );
+    iCachedRemovedItem = 0; //ownership tranferred above.
+    TX_EXIT
+}
+
+/*!
+ \internal
+ */
+void MpMpxCollectionDataPrivate::setMpxMedia( const CMPXMedia& entries )
+{
+    TX_ENTRY
+    TRAPD(err, DoSetMpxMediaL(entries));
+    if ( err == KErrNone ) {
+        TX_LOG_ARGS("Context changed: iContext=" << iContext);
+        emit q_ptr->contextChanged(iContext);
+    }
+    else {
+        TX_LOG_ARGS("Error: " << err << "; should never get here.");
+    }
+    TX_EXIT
+}
+
+/*!
+ \internal
+ */
+void MpMpxCollectionDataPrivate::DoGetDataL( int index, MpMpxCollectionData::DataType type, QString& data ) const
+{
+    TX_ENTRY
+    CMPXMedia* currentMedia( iMediaArray->AtL( index ) );
+
+    TBuf<256> countBuf;
+    TBuf<20> temp;
+    TInt count = 0;
+    switch ( type ) {
+        case MpMpxCollectionData::Title:
+            if ( currentMedia->IsSupported( KMPXMediaGeneralTitle ) ) {
+                const TDesC& title = currentMedia->ValueText( KMPXMediaGeneralTitle );
+                if ( title.Compare( KNullDesC ) != 0 ) {
+                    data = QString::fromUtf16( title.Ptr(), title.Length() );
+                }
+            }
+            break;
+        case MpMpxCollectionData::Artist:
+            if ( currentMedia->IsSupported( KMPXMediaMusicArtist ) ) {
+                const TDesC& artist = currentMedia->ValueText( KMPXMediaMusicArtist );
+                if ( artist.Compare( KNullDesC ) != 0 ) {
+                    data = QString::fromUtf16( artist.Ptr(), artist.Length() );
+                }
+            }
+            break;
+        case MpMpxCollectionData::Album:
+            if ( currentMedia->IsSupported( KMPXMediaMusicAlbum ) ) {
+                const TDesC& album = currentMedia->ValueText( KMPXMediaMusicAlbum );
+                if ( album.Compare( KNullDesC ) != 0 ) {
+                    data = QString::fromUtf16( album.Ptr(), album.Length() );
+                }
+            }
+            break;
+        case MpMpxCollectionData::Count:
+            if ( currentMedia->IsSupported( KMPXMediaGeneralCount ) ) {
+                count = currentMedia->ValueTObjectL<TInt>( KMPXMediaGeneralCount );
+            }
+            temp.AppendNum( count );
+            //AknTextUtils::LanguageSpecificNumberConversion( temp );
+            countBuf.Append( temp );
+            countBuf.Append( (count > 1 ) ? KSongs() : KSong() );
+            data = QString::fromUtf16( countBuf.Ptr(), countBuf.Length() );
+            break;
+        case MpMpxCollectionData::AlbumArtUri:
+            if ( currentMedia->IsSupported( KMPXMediaMusicAlbumArtFileName ) ) {
+                const TDesC& album = currentMedia->ValueText( KMPXMediaMusicAlbumArtFileName );
+                if ( album.Compare( KNullDesC ) != 0 ) {
+                    data = QString::fromUtf16( album.Ptr(), album.Length() );
+                }
+            }
+            break;
+        case MpMpxCollectionData::Uri:
+            if ( currentMedia->IsSupported( KMPXMediaGeneralUri ) ) {
+                const TDesC& uri = currentMedia->ValueText( KMPXMediaGeneralUri );
+                if ( uri.Compare( KNullDesC ) != 0 ) {
+                    data = QString::fromUtf16( uri.Ptr(), uri.Length() );
+                }
+            }
+            break;
+        default:
+            break;
+    }
+    TX_EXIT
+}
+
+/*!
+ \internal
+ */
+bool MpMpxCollectionDataPrivate::DoIsAutoPlaylistL()
+{
+    if ( iContainerMedia->IsSupported(KMPXMediaGeneralNonPermissibleActions) ) {
+        TMPXGeneralNonPermissibleActions attr(
+                iContainerMedia->ValueTObjectL<TMPXGeneralNonPermissibleActions>(
+                KMPXMediaGeneralNonPermissibleActions ) );
+        if ( attr & EMPXWrite ) {
+            return true;
+        }
+    }
+    return false;
+}
+
+/*!
+ \internal
+ */
+bool MpMpxCollectionDataPrivate::DoIsAutoPlaylistL( int index )
+{
+    const CMPXMediaArray* containerArray = iContainerMedia->Value<CMPXMediaArray>( KMPXMediaArrayContents );
+    User::LeaveIfNull( const_cast<CMPXMediaArray*>( containerArray ));
+    CMPXMedia* media( containerArray->AtL(index) );
+
+    if ( media->IsSupported(KMPXMediaGeneralNonPermissibleActions) ) {
+        TMPXGeneralNonPermissibleActions attr(
+            media->ValueTObjectL<TMPXGeneralNonPermissibleActions>(
+                KMPXMediaGeneralNonPermissibleActions ) );
+        if ( attr & EMPXWrite ) {
+            return true;
+        }
+    }
+    return false;
+}
+
+/*!
+ \internal
+ */
+int MpMpxCollectionDataPrivate::DoGetItemCountL( int index )
+{
+    CMPXMedia* currentMedia( iMediaArray->AtL( index ) );
+    int count = 0;
+    if ( currentMedia->IsSupported( KMPXMediaGeneralCount ) ) {
+        count = currentMedia->ValueTObjectL<TInt>( KMPXMediaGeneralCount );
+    }
+    return count;
+}
+
+/*!
+ \internal
+ */
+int MpMpxCollectionDataPrivate::DoGetContainerIdL()
+{
+    if ( !iContainerMedia->IsSupported( KMPXMediaGeneralId ) ) {
+        User::Leave(KErrNotFound);
+    }
+    return iContainerMedia->ValueTObjectL<TInt>( KMPXMediaGeneralId );
+}
+
+/*!
+ \internal
+ */
+int MpMpxCollectionDataPrivate::DoGetItemIdL( int index )
+{
+    CMPXMedia* currentMedia( iMediaArray->AtL( index ) );
+    if ( !currentMedia->IsSupported( KMPXMediaGeneralId ) ) {
+        User::Leave(KErrNotFound);
+    }
+    return currentMedia->ValueTObjectL<TInt>( KMPXMediaGeneralId );
+}
+
+/*!
+ \internal
+ */
+void MpMpxCollectionDataPrivate::DoRemoveItemL( int index )
+{
+    delete iCachedRemovedItem;
+    iCachedRemovedItem = 0;
+    iCachedRemovedItem = CMPXMedia::NewL( *iMediaArray->AtL( index ) );
+    iMediaArray->Remove( index );
+}
+
+/*!
+ \internal
+ */
+bool MpMpxCollectionDataPrivate::DoTestCachedItemL( int itemId )
+{
+    if ( !iCachedRemovedItem && !iCachedRemovedItem->IsSupported( KMPXMediaGeneralId ) ) {
+        User::Leave(KErrNotFound);
+    }
+    return ( itemId == iCachedRemovedItem->ValueTObjectL<TInt>( KMPXMediaGeneralId ) );
+}
+
+
+/*!
+ \internal
+ */
+void MpMpxCollectionDataPrivate::SetCollectionContextL()
+{
+    TX_ENTRY
+    TMPXGeneralType containerType( EMPXNoType );
+    if ( iContainerMedia->IsSupported( KMPXMediaGeneralType ) ) {
+        containerType = iContainerMedia->ValueTObjectL<TMPXGeneralType>( KMPXMediaGeneralType );
+    }
+
+    TMPXGeneralCategory containerCategory( EMPXNoCategory );
+    if( iContainerMedia->IsSupported( KMPXMediaGeneralCategory ) ) {
+        containerCategory = iContainerMedia->ValueTObjectL<TMPXGeneralCategory>( KMPXMediaGeneralCategory );
+    }
+    TX_LOG_ARGS("type=" << containerType << ", category=" << containerCategory );
+
+    iContext = ECollectionContextUnknown;
+    if ( containerType == EMPXGroup ) {
+        switch (containerCategory) {
+            case EMPXSong:
+                iContext = ECollectionContextAllSongs;
+                break;
+            case EMPXArtist:
+                iContext = ECollectionContextArtists;
+                break;
+            case EMPXAlbum:
+                iContext = ECollectionContextAlbums;
+                break;
+            case EMPXPlaylist:
+                iContext = ECollectionContextPlaylists;
+                break;
+            case EMPXGenre:
+                iContext = ECollectionContextGenres;
+                break;
+        }
+    }
+    else if ( containerType == EMPXItem ) {
+        switch (containerCategory) {
+            case EMPXArtist:
+                iContext = ECollectionContextArtistAlbums;
+                break;
+            case EMPXAlbum:
+                iContext = ECollectionContextAlbumSongs;
+                break;
+            case EMPXSong:
+                iContext = ECollectionContextArtistSongs;
+                break;
+            case EMPXPlaylist:
+                iContext = ECollectionContextPlaylistSongs;
+                break;
+            case EMPXGenre:
+                iContext = ECollectionContextGenreSongs;
+                break;
+        }
+    }
+    TX_EXIT
+}
+
+/*!
+ \internal
+ */
+void MpMpxCollectionDataPrivate::DoSetMpxMediaL( const CMPXMedia& entries )
+{
+    TX_ENTRY
+    delete iContainerMedia;
+    iContainerMedia = 0;
+    iContainerMedia = CMPXMedia::NewL(entries);
+    iMediaArray = const_cast<CMPXMediaArray*>(iContainerMedia->Value<CMPXMediaArray>( KMPXMediaArrayContents ) );
+    TX_LOG_ARGS("media count=" << iMediaArray->Count() );
+
+    SetCollectionContextL();
+    TX_EXIT
+}
+
+/*!
+ \internal
+ */
+const CMPXMedia& MpMpxCollectionDataPrivate::containerMedia()
+{
+    return *iContainerMedia;
+}
+