/*
* 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 view base list container definition.
*
*/

// INCLUDE FILES
#include <QtCore>
#include <QGraphicsGridLayout>

#include <hblistview.h>
#include <hbabstractviewitem.h>
#include <hblistviewitem.h>
#include <hbscrollbar.h>
#include <hbdocumentloader.h>
#include <hblabel.h>
#include <hbindexfeedback.h>

#include "mpcollectionlistcontainer.h"
#include "mpcollectiondatamodel.h"
#include "mpmpxcollectiondata.h"
#include "mptrace.h"

/*!
    \class MpCollectionListContainer
    \brief Music Player collection view base list container definition.

    Collection container is a base container that provides interface to
    be implemented by the specific collection context containers, e.g.
    All Songs, Artists, etc. Collection container owns UI elements such
    as the layout and the widgets.
*/

/*!
 Constructs the collection container.
 */
MpCollectionListContainer::MpCollectionListContainer( HbDocumentLoader *loader, QGraphicsItem *parent )
    : MpCollectionContainer(loader, parent),
      mList(0),
      mNoMusic(0),
      mIndexFeedback( new HbIndexFeedback())
{
    TX_ENTRY
    mIndexFeedback->setIndexFeedbackPolicy(HbIndexFeedback::IndexFeedbackSingleCharacter);
    TX_EXIT
}

/*!
 Destructs the collection container.
 */
MpCollectionListContainer::~MpCollectionListContainer()
{
    TX_ENTRY
    delete mNoMusic;
    delete mIndexFeedback;
    TX_EXIT
}

/*!
 Initializes the collection container. Allocates all resources needed by the
 container.
 */
void MpCollectionListContainer::initialize()
{
    TX_LOG
}

/*!
 Sets the data model for the container.
 */
void MpCollectionListContainer::setDataModel( MpCollectionDataModel *dataModel )
{
    TX_ENTRY
    MpCollectionContainer::setDataModel(dataModel);
    if ( mList ) {
        mList->setModel(dataModel);
    }
    TX_EXIT
}

/*!
 Slot to be called when an item is selected by the user.
 Start animation.
 */
void MpCollectionListContainer::itemActivated( const QModelIndex &index )
{
    TX_ENTRY_ARGS("index=" << index.row());
    emit MpCollectionContainer::itemActivated( index.row() );
    TX_EXIT
}

/*!
 Slot to be called when an item is long pressed by the user.
 */
void MpCollectionListContainer::onLongPressed( HbAbstractViewItem *listViewItem, const QPointF &coords )
{
    TX_ENTRY
    emit MpCollectionContainer::itemLongPressed(listViewItem->modelIndex().row(), coords);
    TX_EXIT
}

/*!
 \internal
 */
void MpCollectionListContainer::initializeList()
{
    TX_ENTRY
    mList->setItemRecycling(true);
    mList->setScrollingStyle( HbListView::PanOrFlick );
    mList->setClampingStyle( HbListView::BounceBackClamping );
    mList->setLongPressEnabled(true);

    connect(mList, SIGNAL(activated(QModelIndex)), this, SLOT(itemActivated(QModelIndex)));
    connect(mList, SIGNAL(longPressed(HbAbstractViewItem*, QPointF)), this, SLOT(onLongPressed(HbAbstractViewItem*, QPointF)));

    HbScrollBar *scrollbar = mList->verticalScrollBar();
    scrollbar->show();
    scrollbar->setInteractive(true);
    mList->setVerticalScrollBarPolicy(HbScrollArea::ScrollBarAsNeeded);

    mList->listItemPrototype()->setGraphicsSize(HbListViewItem::Thumbnail);
    TX_EXIT
}

/*!
 \internal
 */
void MpCollectionListContainer::setupEmptyListContainer()
{
    TX_ENTRY
    bool ok = false;
    mDocumentLoader->load(QString(":/docml/musiccollection.docml"), "emptyList", &ok);
    if ( !ok ) {
        TX_LOG_ARGS("Error: invalid xml file.");
        Q_ASSERT_X(ok, "MpCollectionListContainer::setupContainer", "invalid xml file");
    }

    QGraphicsWidget *widget;
    widget = mDocumentLoader->findWidget(QString("noMusic"));
    mNoMusic = qobject_cast<HbLabel*>(widget);
    TX_EXIT
}