#include <hgmediawall.h>

#include "mpcollectiondatamodel.h"

#include "mpcollectiontbonelistdatamodel.h"

    \li ECollectionContextArtistAlbumsTBone

    \li ECollectionContextArtistAllSongs

      mInfoBar(0),

      mTBone(0),

      mTBoneListModel(0),

      mCurrentArtistIndex(0),

      mCurrentAlbumIndex(0)

    mCollectionContext = ECollectionContextArtists;

    delete mTBone;

    delete mTBoneListModel;

    TX_EXIT

}

/*!

 Sets the data model for the container.

 */

void MpCollectionContainerArtists::setDataModel( MpCollectionDataModel *dataModel )

{

    TX_ENTRY_ARGS("mCollectionContext=" << mCollectionContext);

    MpCollectionContainer::setDataModel(dataModel);

    int count = mCollectionData->count();

    switch ( mCollectionContext ) {

        case ECollectionContextArtists:

            if ( mList ) {

                mList->setModel(dataModel);

                if ( count ) {

                    if ( mCurrentArtistIndex >= count ) {

						// This can happen if the last item is deleted

                        mCurrentArtistIndex = count - 1;

                    }

                    mList->scrollTo( dataModel->index(mCurrentArtistIndex, 0) );

                }

                // Reset the current album index for navigation:

                // ECollectionContextArtistAlbums -> ECollectionContextArtists

                mCurrentAlbumIndex = 0;

            }

            break;

        case ECollectionContextArtistAlbums:

            if ( mList ) {

                mList->setModel(dataModel);

                if ( count ) {

                    if ( mCurrentAlbumIndex >= count ) {

                        // This can happen if the last item is deleted

                        mCurrentAlbumIndex = count - 1;

                    }

                    mList->scrollTo( dataModel->index(mCurrentAlbumIndex, 0) );

                }

                // Reset the album index offset for navigation:

                // ECollectionContextArtistAlbumsTBone -> ECollectionContextArtistAlbums

                mAlbumIndexOffset = 0;

            }

            break;

        case ECollectionContextArtistAlbumsTBone:

            if ( mTBone ) {

                if ( count > 1 ) {

                    // Selected artist has more than 1 album and therefore the

                    // artist's "All songs" exist. Since we don't show artist's

                    // "All songs" in TBone, we need to set an offset.

                    mAlbumIndexOffset = 1;

                }

                else {

                    // Selected artist has exactly 1 album and therefore the

                    // artist's "All songs" doesn't exist.

                    mAlbumIndexOffset = 0;

                }

                if ( mCurrentAlbumIndex >= count ) {

				    // This can happen if the last item is deleted

                    mCurrentAlbumIndex = count - 1;

                }

                mTBone->setModel(dataModel);

                mTBone->scrollTo( dataModel->index(mCurrentAlbumIndex - mAlbumIndexOffset, 0) );

                if ( mTBoneListModel == 0 ) {

                    mTBoneListModel = new MpCollectionTBoneListDataModel(mCollectionData);

                    connect( mTBoneListModel, SIGNAL(albumDataChanged()), this, SLOT(albumDataChanged()) );

                }

                mList->setModel(mTBoneListModel);

                if ( !mCollectionData->setCurrentAlbum(mCurrentAlbumIndex) ) {

                    emit findAlbumSongs(mCurrentAlbumIndex);

                }

            }

            break;

        case ECollectionContextArtistAllSongs:

            if ( mList ) {

                mList->setModel(dataModel);

            }

            break;

        default:

            break;

    }

    TX_ENTRY_ARGS("mCollectionContext=" << mCollectionContext << "index=" << row);

    switch ( mCollectionContext ) {

        case ECollectionContextArtists:

            mCurrentArtistIndex = row;

            TX_LOG_ARGS("mCurrentArtistIndex=" << mCurrentArtistIndex);

            MpCollectionListContainer::itemActivated(index);

            break;

        case ECollectionContextArtistAlbums:

            mCurrentAlbumIndex = row;

            TX_LOG_ARGS("mCurrentAlbumIndex=" << mCurrentAlbumIndex);

            MpCollectionListContainer::itemActivated(index);

            break;

        case ECollectionContextArtistAlbumsTBone:

            TX_LOG_ARGS("mCurrentAlbumIndex=" << mCurrentAlbumIndex);

            if ( mViewMode == MpCommon::FetchView ) {

                MpCollectionListContainer::itemActivated(index);

            }

            else {

                emit playAlbumSongs(mCurrentAlbumIndex, row);

            }

            break;

        case ECollectionContextArtistAllSongs:

            MpCollectionListContainer::itemActivated(index);

            break;

        default:

            break;

    }

    TX_EXIT

}

/*!

 Slot to be called when scrolling ends in media wall and an album is centered.

 */

void MpCollectionContainerArtists::albumCentered()

{

    TX_ENTRY

    int index = mTBone->currentIndex().row();

    TX_LOG_ARGS("index=" << index);

    index += mAlbumIndexOffset;

    if ( mCurrentAlbumIndex != index ) {

        // Prevent reloading if user just moves the center album a little

        // and the same album re-centers.

        mCurrentAlbumIndex = index;

        TX_LOG_ARGS("mCurrentAlbumIndex=" << mCurrentAlbumIndex);

        if ( !mCollectionData->setCurrentAlbum(mCurrentAlbumIndex) ) {

            emit findAlbumSongs(mCurrentAlbumIndex);

    TX_EXIT

}

/*!

 Slot to be called data model has new data. This occurs after a delete operation is complete.

 Two cases:

     1) User deleted an artist.

	 2) User deleted last song in an album.

 */

void MpCollectionContainerArtists::dataReloaded()

{

    TX_ENTRY

    if ( mCollectionContext == ECollectionContextArtistAlbumsTBone ) {

        if ( mCurrentAlbumIndex > 0 ) {

            --mCurrentAlbumIndex;

        }

        mTBone->scrollTo( mDataModel->index(mCurrentAlbumIndex - mAlbumIndexOffset, 0) );

        if ( !mCollectionData->setCurrentAlbum(mCurrentAlbumIndex) ) {

            emit findAlbumSongs(mCurrentAlbumIndex);

    else {

        MpCollectionListContainer::dataReloaded();

    }

    TX_EXIT

}

/*!

 Slot to be called data model has new data.

 User has deleted one of the songs from TBone list.

 */

void MpCollectionContainerArtists::albumDataChanged()

{

    TX_ENTRY

    emit findAlbumSongs(mCurrentAlbumIndex);

        QString artist;

        switch ( mCollectionContext ) {

            case ECollectionContextArtists:

                mDocumentLoader->load(QString(":/docml/musiccollection.docml"), "artists", &ok);

                if ( !ok ) {

                    TX_LOG_ARGS("Error: invalid xml file.");

                    Q_ASSERT_X(ok, "MpCollectionContainerArtists::setupContainer", "invalid xml file");

                }

                if ( !mList ) {

                    widget = mDocumentLoader->findWidget(QString("artistsList"));

                    mList = qobject_cast<HbListView*>(widget);

                    mIndexFeedback->setItemView(mList);

                    initializeList();

                }

                if ( mInfoBar ) {

                    delete mInfoBar;

                    mInfoBar = 0;

                }

                if ( mTBone ) {

                    delete mTBone;

                    mTBone = 0;

                }

                break;

            case ECollectionContextArtistAlbums:

                mDocumentLoader->load(QString(":/docml/musiccollection.docml"), "artistAlbums", &ok);

                if ( !ok ) {

                    TX_LOG_ARGS("Error: invalid xml file.");

                    Q_ASSERT_X(ok, "MpCollectionContainerArtists::setupContainer", "invalid xml file");

                }

                widget = mDocumentLoader->findWidget(QString("artistDetail"));

                mInfoBar = qobject_cast<HbGroupBox*>(widget);

                artist = mCollectionData->collectionTitle();

                if ( artist.isEmpty() ) {

                    artist = hbTrId("txt_mus_subtitle_unknown");

                }

                mInfoBar->setHeading(artist);

                if ( mTBone ) {

                    delete mTBone;

                    mTBone = 0;

                }

                break;

            case ECollectionContextArtistAlbumsTBone:

                {

                if ( mViewMode == MpCommon::FetchView ) {

                    mDocumentLoader->load(QString(":/docml/musiccollection.docml"), "artistAlbumTBoneFetcher", &ok);

                    if ( !ok ) {

                        TX_LOG_ARGS("Error: invalid xml file.");

                        Q_ASSERT_X(ok, "MpCollectionContainerAlbums::setupContainer", "invalid xml file");

                    }

                    widget = mDocumentLoader->findWidget(QString("artistDetail"));

                    mInfoBar = qobject_cast<HbGroupBox*>(widget);

                    mInfoBar->setHeading( hbTrId("txt_mus_subtitle_select_a_song") );

                }

                else {

                    mDocumentLoader->load(QString(":/docml/musiccollection.docml"), "artistAlbumTBone", &ok);

                    if ( !ok ) {

                        TX_LOG_ARGS("Error: invalid xml file.");

                        Q_ASSERT_X(ok, "MpCollectionContainerAlbums::setupContainer", "invalid xml file");

                    }

                    if ( mInfoBar ) {

                        delete mInfoBar;

                        mInfoBar = 0;

                    }

                }

                widget = mDocumentLoader->findWidget(QString("artistAlbumWall"));

                mTBone = qobject_cast<HgMediawall*>(widget);

                HbIcon defaultIcon( "qtg_large_music_album" );

                defaultIcon.setSize(mTBone->itemSize());

                mTBone->setDefaultImage( defaultIcon.pixmap().toImage() );

                mTBone->setTitleFontSpec( HbFontSpec(HbFontSpec::Primary) );

                mTBone->setDescriptionFontSpec( HbFontSpec(HbFontSpec::Secondary) );

                mTBone->setScrollBarPolicy( HgWidget::ScrollBarAlwaysOff );

                mTBone->enableReflections(true);

                connect( mTBone, SIGNAL(scrollingEnded()), this, SLOT(albumCentered()) );

                }

                break;

            case ECollectionContextArtistAllSongs:

                // No need to load anything. Just reuse the section "artistAlbums" loaded

                // in ECollectionContextArtistAlbums context.

                if ( mViewMode == MpCommon::FetchView ) {

                    mInfoBar->setHeading( hbTrId("txt_mus_subtitle_select_a_song") );

                }

                else {

                    artist = mCollectionData->collectionTitle();

                    if ( artist.isEmpty() ) {

                        artist = hbTrId("txt_mus_subtitle_unknown_all");

                    }

                    else {

                        artist = hbTrId("txt_mus_subtitle_1_all").arg(artist);

                    }

                    mInfoBar->setHeading(artist);

                }

                break;

            default:

                break;

    }

        // Must delete widgets when last song is deleted and view is reloaded.

        if ( mTBone ) {

            delete mTBone;

            mTBone = 0;

        }