/*

* 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:  

*

*/

#include "cntfetchcontactpopup.h"

#include "cntdocumentloader.h"

#include "cntfetchmarkall.h"

#include "cntdebug.h"

#include <cntlistmodel.h>

#include <hblistview.h>

#include <hbstyleloader.h>

#include <hbindexfeedback.h>

#include <hblistviewitem.h>

#include <hbscrollbar.h>

#include <hbmainwindow.h>

#include <hbdialog.h>

#include <hblabel.h>

#include <hbsearchpanel.h>

#include <hblineedit.h>

#include <hbaction.h>

#include <hbtextitem.h>

#include <hbstaticvkbhost.h>

#include <QGraphicsLinearLayout>

#include <QCoreApplication>

const char *CNT_FETCHLIST_XML = ":/xml/contacts_fetchdialog.docml";

CntFetchContactPopup::CntFetchContactPopup( QContactManager& aMgr ) : 

mManager(aMgr),

mPopup( NULL ),

mListView( NULL ),

mEmptyView( NULL ),

mHeading( NULL ),

mPrimaryAction( NULL ),

mSearch( NULL ),

mModel( NULL ),

mMarkAll( NULL ),

mDoc( NULL )

{

    mDoc = new CntDocumentLoader();

    bool ok;

    mDoc->load( CNT_FETCHLIST_XML, &ok );

    if ( !ok )

    {

        qFatal("Unable to read %S", CNT_FETCHLIST_XML );

    }

    mPopup = static_cast<HbDialog*>( mDoc->findWidget( "dialog" ) );

    mSearch = static_cast<HbSearchPanel*>( mDoc->findWidget( "searchPanel" ) );

    mMarkAll = static_cast<CntFetchMarkAll*>( mDoc->findWidget("markAll") );

    mEmptyView = static_cast<HbTextItem*>( mDoc->findWidget("emptyLabel" ));

    mListView = static_cast<HbListView*>( mDoc->findWidget("listView") );

    mHeading = static_cast<HbLabel*>( mDoc->findWidget("heading") );

    connect(qApp, SIGNAL(aboutToQuit()), this, SLOT(closePopup()) );

    connect(mPopup, SIGNAL(aboutToClose()), this, SLOT(closePopup()) );

    connect(mSearch, SIGNAL(criteriaChanged(QString)), this, SLOT(setFilter(QString)));

    connect(mMarkAll, SIGNAL(markAll(int)), this, SLOT(selectAll(int)) );

    HbLineEdit *editor = static_cast<HbLineEdit*>( mSearch->primitive("lineedit"));

    editor->setInputMethodHints(Qt::ImhNoPredictiveText);

    mSearch->setCancelEnabled( false );

    mVirtualKeyboard = new HbStaticVkbHost(editor);

    connect(mVirtualKeyboard, SIGNAL(keypadOpened()), this, SLOT(handleKeypadOpen()));

    connect(mVirtualKeyboard, SIGNAL(keypadClosed()), this, SLOT(handleKeypadClosed()));

}

CntFetchContactPopup::~CntFetchContactPopup()

{

    delete mDoc;

}

CntFetchContactPopup* CntFetchContactPopup::createMultiSelectionPopup( QString aTitle, QString aAction, QContactManager& aManager )

{

    CntFetchContactPopup* popup = new CntFetchContactPopup( aManager );

    popup->constructPopupDialog( aTitle, aAction, HbAbstractItemView::MultiSelection );

    return popup;

}

CntFetchContactPopup* CntFetchContactPopup::createSingleSelectionPopup( QString aTitle, QContactManager& aManager )

{

    CntFetchContactPopup* popup = new CntFetchContactPopup( aManager );

    popup->constructPopupDialog( aTitle, "", HbAbstractItemView::NoSelection );

    return popup;

}

void CntFetchContactPopup::setSelectedContacts( QSet<QContactLocalId> aIds )

{

    CNT_ENTRY

    if ( mListView->selectionMode() == HbAbstractItemView::MultiSelection )

    {

        mIdList.clear();

        foreach ( QContactLocalId id, aIds ) 

        {

            mIdList.append( id );

            QContact contact = mManager.contact(id);

            QModelIndex contactIndex = mModel->indexOfContact(contact);

            mSelectionModel->select( contactIndex, QItemSelectionModel::Select );

        }

    }

    CNT_EXIT

}

void CntFetchContactPopup::showPopup()

{

    CNT_ENTRY

    HbMainWindow* window = mPopup->mainWindow();

    if ( window )

    {

        connect(window, SIGNAL(orientationChanged(Qt::Orientation)), 

                this, SLOT(loadLayout(Qt::Orientation)) );

    }

    mPopup->open( this, SLOT(dialogDismissed(HbAction*)) );

    CNT_EXIT

}

void CntFetchContactPopup::handleKeypadOpen()

{

    CNT_ENTRY

    qreal height = mPopup->size().height() - 

            mVirtualKeyboard->keyboardArea().height() - 

            mSearch->size().height();

    // in single selection we don't have the "mark all" option

    if ( mMarkAll )

    {

        height = height - mMarkAll->size().height();

    }

    mEmptyView->setMaximumHeight( height );

    mListView->setMaximumHeight( height );

    CNT_EXIT

}

void CntFetchContactPopup::handleKeypadClosed()

{

    CNT_ENTRY

    qreal height =  mPopup->size().height() - mSearch->size().height();

    if ( mMarkAll )

    {

        height = height - mMarkAll->size().height();

    }   

    mListView->setMaximumHeight( height );

    mEmptyView->setMaximumHeight( height );

    CNT_EXIT

}

void CntFetchContactPopup::contactSelected( const QModelIndex& aIndex )

{

    CNT_ENTRY

    if ( aIndex.isValid() )

    {

        QContact contact = mModel->contact( aIndex );

        mIdList.append( contact.localId() );

        emit fetchReady( mIdList.toSet() );

    }

    disconnect(mListView, SIGNAL(activated(const QModelIndex&)), 

                    this, SLOT(contactSelected(const QModelIndex&)) );

    mPopup->close();

    CNT_EXIT

}

void CntFetchContactPopup::contactsSelected(

        const QItemSelection& aSelected, 

        const QItemSelection& aDeselected )

{

    CNT_ENTRY

    // remove all deselected items

    foreach ( QModelIndex index, aDeselected.indexes() )

    {

        QContact contact = mModel->contact( index );

        QContactLocalId id = contact.localId();

        if ( mIdList.contains(id) )

        {

            mIdList.removeAll( id );

        }

    }

    // add all selected items

    foreach ( QModelIndex index, aSelected.indexes() )

    {

        QContact contact = mModel->contact( index );

        QContactLocalId id = contact.localId();

        if ( !mIdList.contains(id) )

        {

            mIdList.append( id );

        }

    }

    mMarkAll->setSelectedContactCount( mIdList.size() );

    CNT_EXIT

}

void CntFetchContactPopup::selectAll( int aState )

{

    CNT_ENTRY

    if ( mListView->selectionMode() == HbAbstractItemView::MultiSelection )

    {

        switch ( aState )

        {

        case Qt::Checked: 

            mListView->selectAll();

            mMarkAll->setSelectedContactCount( mIdList.count() );

            break;

        case Qt::Unchecked:

            mListView->clearSelection();

            mMarkAll->setSelectedContactCount( 0 );

            break;

        default:

            break;

        }

    }

    CNT_EXIT

}

void CntFetchContactPopup::dialogDismissed( HbAction* aAction )

{

    CNT_ENTRY

    if ( aAction != mPrimaryAction )

    {

        emit fetchCancelled();

    }

    else if ( aAction ) 

    {

        disconnect(mSelectionModel, SIGNAL(selectionChanged(const QItemSelection&,const QItemSelection&)),

                        this, SLOT(contactsSelected(const QItemSelection&, const QItemSelection&)) );

        QModelIndexList indexList = mSelectionModel->selectedIndexes();

        foreach ( QModelIndex index, indexList )

        {

            QContact contact = mModel->contact( index );

            mIdList.append( contact.localId() );

        }

        emit fetchReady( mIdList.toSet() );

    }

    else

    {

        // ignore.

    }

    CNT_EXIT

}

void CntFetchContactPopup::setFilter( const QString& aFilter )

{

    CNT_ENTRY

    QContactDetailFilter detailfilter;

    detailfilter.setMatchFlags( QContactFilter::MatchStartsWith );

    detailfilter.setValue( aFilter.split(QRegExp("\\s+"), QString::SkipEmptyParts) );

    detailfilter.setDetailDefinitionName(

            QContactDisplayLabel::DefinitionName,

            QContactDisplayLabel::FieldLabel);

    mModel->setFilter(detailfilter);

    HbMainWindow* window = mPopup->mainWindow();

    if ( window )

    {

        loadLayout( window->orientation() );

    }

    setSelectedContacts( mIdList.toSet() );

    CNT_EXIT

}

void CntFetchContactPopup::constructPopupDialog( QString aTitle, QString aAction, HbAbstractItemView::SelectionMode aMode )

{

    CNT_ENTRY

    mIdList.clear();

    mTitle = aTitle;

    mPopup->setAttribute( Qt::WA_DeleteOnClose, true );    

    QContactDetailFilter contactsFilter;

    contactsFilter.setDetailDefinitionName(QContactType::DefinitionName, QContactType::FieldType);

    contactsFilter.setValue(QString(QLatin1String(QContactType::TypeContact)));

    mModel = new CntListModel( &mManager, contactsFilter, false);

    mModel->showMyCard(false);

    mSelectionModel = new QItemSelectionModel( mModel );

    mListView->setFrictionEnabled(true);

    mListView->setScrollingStyle(HbScrollArea::PanWithFollowOn);

    mListView->verticalScrollBar()->setInteractive(true);

    HbIndexFeedback* indexFeedback = new HbIndexFeedback(mPopup);

    indexFeedback->setIndexFeedbackPolicy(HbIndexFeedback::IndexFeedbackSingleCharacter);

    indexFeedback->setItemView(mListView);

    HbListViewItem *prototype = mListView->listItemPrototype();

    prototype->setGraphicsSize(HbListViewItem::Thumbnail);

    prototype->setStretchingStyle(HbListViewItem::StretchLandscape);

    mListView->setSelectionMode( aMode );

    mListView->setModel( mModel );

    mListView->setSelectionModel( mSelectionModel );

    HbMainWindow* window = mPopup->mainWindow();

    if ( window )

    {

        loadLayout( window->orientation() );

    }

    if ( !aAction.isEmpty() )

    {

        mPrimaryAction = new HbAction( aAction, mPopup );

        mPopup->addAction( mPrimaryAction );

    }

    HbAction* secondaryAction = new HbAction(hbTrId("txt_common_button_cancel"), mPopup);

    mPopup->addAction( secondaryAction );

    if ( aMode != HbListView::MultiSelection )

    {

        connect(mListView, SIGNAL(activated(const QModelIndex&)), 

                this, SLOT(contactSelected(const QModelIndex&)) );

        mMarkAll->setVisible( false );

    }

    else

    {

        mMarkAll->setSelectedContactCount( 0 );

        mMarkAll->setMaxContactCount( mModel->rowCount() );

        connect(mSelectionModel, SIGNAL(selectionChanged(const QItemSelection&,const QItemSelection&)),

                this, SLOT(contactsSelected(const QItemSelection&, const QItemSelection&)) );

    }

    CNT_EXIT

}

void CntFetchContactPopup::loadLayout( Qt::Orientation aOrientation )

{

    CNT_ENTRY

    bool multi = mListView->selectionMode() == HbAbstractItemView::MultiSelection;

    if ( mModel->rowCount() > 0 )

    {

        if ( aOrientation == Qt::Horizontal )

        {

            mPopup->setHeadingWidget( NULL );

            mDoc->load( CNT_FETCHLIST_XML, "find_list_landscape");

        }

        else

        {

            mHeading = new HbLabel( mTitle );

            mPopup->setHeadingWidget( mHeading );

            mDoc->load( CNT_FETCHLIST_XML, multi ? "find_list" : "find_list_single");

        }

    }

    else

    {

        if ( aOrientation == Qt::Horizontal )

        {

            mPopup->setHeadingWidget( NULL );

            mDoc->load( CNT_FETCHLIST_XML, "find_empty_landscape" );

        }

        else

        {

            mHeading = new HbLabel( mTitle );

            mPopup->setHeadingWidget( mHeading );

            mDoc->load( CNT_FETCHLIST_XML, multi ? "find_empty" : "find_empty_single" );

        }

     }

    CNT_EXIT

}

void CntFetchContactPopup::closePopup()

{

    CNT_ENTRY

    disconnect(mVirtualKeyboard, SIGNAL(keypadOpened()), this, SLOT(handleKeypadOpen()));

    disconnect(mVirtualKeyboard, SIGNAL(keypadClosed()), this, SLOT(handleKeypadClosed()));

    deleteLater();

    CNT_EXIT

}

// End of File