/*

* Copyright (c) 2010 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: LocationPickerSearchView implementation

*

*/

#include <HbListViewItem>

#include <QStandardItemModel>

#include <HbSearchPanel>

#include <HbListView>

#include <HbTextItem>

#include <HbDocumentLoader>

#include <QGraphicsLinearLayout>

#include <HbMenu>

#include <HbAction>

#include "locationpickerproxymodel.h"

#include "locationpickersearchview.h"

#include "locationpickerdatamanager.h"

// ======== MEMBER FUNCTIONS ========

// ----------------------------------------------------

// LocationPickerSearchView::LocationPickerSearchView()

// ----------------------------------------------------

LocationPickerSearchView::LocationPickerSearchView( HbDocumentLoader &aLoader )

    :mProxyModel(NULL),

    mModel(NULL),

    mListView(NULL),

    mSearchPanel(NULL),

    mEmptyLabel(NULL),

    mVerticalLayout(NULL),

    mDocumentLoader(aLoader),

	mLongPressMenu(NULL),

	mSelectAction(NULL)

{

}

// ----------------------------------------------------

// LocationPickerSearchView::~LocationPickerSearchView()

// ----------------------------------------------------

LocationPickerSearchView::~LocationPickerSearchView()

{

    delete mProxyModel;

    delete mEmptyLabel;

}

// ----------------------------------------------------

// LocationPickerSearchView::init()

// ----------------------------------------------------

void LocationPickerSearchView::init( QStandardItemModel *aModel )

{   

    mModel = aModel;

    //get listview from docml

    mListView = qobject_cast<HbListView*>(

            mDocumentLoader.findObject(QString("SearchListView")));

    if(!mListView)

    {

        qFatal("Error Reading Docml");   

    }

    //get search panel from docml

    mSearchPanel = qobject_cast<HbSearchPanel*>(

            mDocumentLoader.findObject(QString("searchPanel")));

    //conect to respective slots

    connect(mListView, SIGNAL(activated(const QModelIndex &)), this, SLOT(handleActivated

    (const QModelIndex &)));

    connect(mListView,SIGNAL(longPressed(HbAbstractViewItem*, const QPointF &)),this,

                SLOT(launchPopUpMenu(HbAbstractViewItem*, const QPointF &)));

    connect(mSearchPanel, SIGNAL(exitClicked()),this, SLOT(handleExit()));

    connect(mSearchPanel,SIGNAL(criteriaChanged(QString)),this,SLOT(doSearch(QString)));

    //Set graphics size for the list items.

    HbListViewItem *hbListItem = new HbListViewItem();

    hbListItem->setGraphicsSize(HbListViewItem::Thumbnail);

    mListView->setItemPrototype( hbListItem );

    // Create the proxy model.

    mProxyModel = new LocationPickerProxyModel();

    mProxyModel->setSourceModel(mModel);

    mListView->setModel(mProxyModel);

    // set filter properties

    mProxyModel->setDynamicSortFilter(TRUE);

    mProxyModel->setSortRole(Qt::DisplayRole);

    mProxyModel->setSortCaseSensitivity(Qt::CaseInsensitive);

    // sort 

    mProxyModel->sort(0, Qt::AscendingOrder);

}

// ----------------------------------------------------

// LocationPickerSearchView::handleExit()

// ----------------------------------------------------

void LocationPickerSearchView::handleExit()

{   

    //emit signal to switch the current view

    emit switchView();

}

// ----------------------------------------------------

// LocationPickerSearchView::doSearch()

// ----------------------------------------------------

void LocationPickerSearchView::doSearch( QString aCriteria )

{

    // use the string to search

    mProxyModel->filterParameterChanged(aCriteria);

    mProxyModel->setFilterFixedString(aCriteria);

    //if no entries presentdisplay empty text item

    if (!mProxyModel->rowCount() )

    {

        if(!mEmptyLabel)

        {    

            QGraphicsWidget *widget = NULL;

            widget = mDocumentLoader.findWidget(QString("container"));

            mVerticalLayout = static_cast<QGraphicsLinearLayout*>(widget->layout());

            if(!widget || !mVerticalLayout)

            {

                qFatal("Error Reading Docml"); 

            }

            mVerticalLayout->removeItem(mListView);

            mListView->setVisible(false);

            mEmptyLabel = new HbTextItem(hbTrId("txt_lint_list_no_results"));

            mEmptyLabel->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);

            mEmptyLabel->setFontSpec(HbFontSpec(HbFontSpec::Primary));

            mEmptyLabel->setAlignment(Qt::AlignCenter);

            mVerticalLayout->insertItem(0, mEmptyLabel);

            mEmptyLabel->setVisible(true);

        }

    }

    //else display the result

    else if (mEmptyLabel)

    {   

        mVerticalLayout->removeItem(mEmptyLabel);

        mEmptyLabel->setVisible(false);

        delete mEmptyLabel;

        mEmptyLabel=NULL;

        mVerticalLayout->insertItem(0, mListView);

        mListView->setVisible(true);

    }

}

// ----------------------------------------------------

// LocationPickerSearchView::handleActivated()

// ----------------------------------------------------

void LocationPickerSearchView::handleActivated( const QModelIndex &aIndex )

{

    QModelIndex index = mProxyModel->mapToSource(aIndex);

    quint32 lm = 0;

    getData( index, lm );

    //emit item is selectedsignal

    emit selectItem( lm );

}

// ----------------------------------------------------------------------------

// LocationPickerSearchView::getData()

// ----------------------------------------------------------------------------

void LocationPickerSearchView::getData( QModelIndex aIndex, quint32& aValue )

{

    QStandardItem* item = mModel->item( aIndex.row(), aIndex.column() );

    QVariant var = item->data( Qt::UserRole );

    aValue = var.toUInt();

}

// -----------------------------------------------------------------------------

// LocationPickerSearchView::launchPopUpMenu()

// -----------------------------------------------------------------------------

void LocationPickerSearchView::launchPopUpMenu(HbAbstractViewItem *aItem, const QPointF &aPoint)

{

    mLongPressMenu = new HbMenu();

    mLongPressMenu->setTimeout(HbMenu::NoTimeout);

    mSelectAction  = mLongPressMenu->addAction(hbTrId("txt_lint_list_select"));

    mIndex = aItem->modelIndex();

    connect(mSelectAction, SIGNAL(triggered()),this, SLOT(handleLongPress()));

    mLongPressMenu->setPreferredPos(aPoint);

    connect(mLongPressMenu,SIGNAL(aboutToClose ()),this,SLOT(deleteMenu()));

    mLongPressMenu->open();

}

// -----------------------------------------------------------------------------

// LocationPickerSearchView::handleLongPress()

// -----------------------------------------------------------------------------

void LocationPickerSearchView::handleLongPress()

{

    handleActivated(mIndex);

}

// -----------------------------------------------------------------------------

// LocationPickerSearchView::deleteMenu()

// -----------------------------------------------------------------------------

void LocationPickerSearchView::deleteMenu()

{

    mLongPressMenu->deleteLater();

    mLongPressMenu = NULL;

    mSelectAction->deleteLater();

    mSelectAction = NULL;

}