/*

 * Copyright (c) 2009-2010 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:

 *

 */

#include "nmuiheaders.h"

/*!

    \class NmMessageListViewItem

    \brief List view item for message list view.

 */

static const int NmFolderTypeRole = Qt::UserRole+1; 

/*!

    Constructor.

 */

NmMessageListViewItem::NmMessageListViewItem(QGraphicsItem *parent)

: HbTreeViewItem(parent),

  mSender(NULL),

  mSubject(NULL),

  mTime(NULL),

  mDividerTitle(NULL),

  mNewMsgIcon(NULL),

  mIcon1(NULL),

  mIcon2(NULL),

  mPrimarySize(0),

  mSecondarySize(0)   

{

}

/*!

    Destructor.

 */

NmMessageListViewItem::~NmMessageListViewItem()

{

}

/*!

    Create item.

 */

HbTreeViewItem *NmMessageListViewItem::createItem()

{

    return new NmMessageListViewItem(*this);

}

/*!

    Boolean value indicating model index availability. Always true since

    this item prototype is used for both divider and message.

 */

bool NmMessageListViewItem::canSetModelIndex(const QModelIndex &index) const

{

    Q_UNUSED(index);

    // This item class can handle all items in message list.

    return true;

}

/*!

    Update child items. List calls this function whenever item is needed

    to be updated.

 */

void NmMessageListViewItem::updateChildItems()

{

    // Get model pointer

    NmMessageListModelItem *msgModelItem = modelIndex().data(

        Qt::DisplayRole).value<NmMessageListModelItem*>();

    // Check whether item is message item or title divider

    // and set the layout accordingly. Dividers are not currently used.

    if (msgModelItem && msgModelItem->itemType() ==

        NmMessageListModelItem::NmMessageItemMessage){

        NmMessageListModel *model = static_cast<NmMessageListModel*>(msgModelItem->model());

        if (model){

            // First set item layout.

            createMessageItemLayout();

            // Set content data to item after layout is created.

            setContentsToMessageItem(msgModelItem->envelope(), model->dividersActive());

        }

    }

    HbTreeViewItem::updateChildItems();

}

/*!

    Set item layout.

    Function does not take ownership of model or model item.

 */

void NmMessageListViewItem::createMessageItemLayout()

{

    getFontSizes();

    // Create sender label and set name from widgetml.

    if (!mSender) {

        mSender = new HbTextItem(this);

        HbStyle::setItemName(mSender, "sender");

        mSender->setObjectName("ListViewItemMessageSender");

    }

    // Create time label and set name from widgetml.

    if (!mTime) {

        mTime = new HbTextItem(this);

        HbStyle::setItemName(mTime, "time");

        mTime->setObjectName("ListViewItemMessageTime");

    }

    // Create subject label and set name from widgetml.

    if (!mSubject) {

        mSubject = new HbTextItem(this);

        HbStyle::setItemName(mSubject, "subject");

        mSubject->setObjectName("ListViewItemMessageSubject");

    }

    // Set new message icon.

    if (!mNewMsgIcon) {

        mNewMsgIcon = new HbFrameItem(this);

    }

    // Create priority icon and set name from widgetml.

    if (!mIcon1) {

        mIcon1 = new HbIconItem(this);

        HbStyle::setItemName(mIcon1, "icon1");

    }

    // Create attachment icon and set name from widgetml.

    if (!mIcon2) {

        mIcon2 = new HbIconItem(this);

        HbStyle::setItemName(mIcon2, "icon2");

    }

    setObjectName("ListViewItemMessage");

}

/*!

    Sets the item text label contents, icons, etc. The method does not take

    ownership of model or model item.

    \param envelope The message envelope.

    \param dividersActive 

*/

void NmMessageListViewItem::setContentsToMessageItem(const NmMessageEnvelope &envelope, 

                                                     bool dividersActive)

{

    // Member variables are created in previous function.

    // Sender.

    mSender->setText(senderFieldText(envelope));

    // Time.

    HbExtendedLocale locale = HbExtendedLocale::system();

    QDateTime localTime = envelope.sentTime().addSecs(locale.universalTimeOffset());

    QDate sentLocalDate = localTime.date();

    QDate currentdate = QDate::currentDate();

    if (dividersActive || sentLocalDate == currentdate) {

        QString shortTimeSpec = r_qtn_time_usual;

        QTime time = localTime.time();

        mTime->setText( HbStringUtil::convertDigits(locale.format(time, shortTimeSpec)) );

    } else {

        QString shortDateSpec = r_qtn_date_without_year;

        mTime->setText( HbStringUtil::convertDigits(locale.format(sentLocalDate, shortDateSpec)) );

    }

    // Subject.

    QString subjectText = envelope.subject();

    if (subjectText.length()) {

        mSubject->setText(subjectText);

    } else {

        mSubject->setText(hbTrId("txt_mail_dblist_val_no_subject"));

    }

    // Priority.

    bool priorityIs(false);

    mIcon1->setIcon(HbIcon());

    mIcon1->setObjectName(QString());

    mIcon1->hide();

    mIcon2->setIcon(HbIcon());

    mIcon2->setObjectName(QString());

    mIcon2->hide();

    switch (envelope.priority()) {

        case NmMessagePriorityLow: {

            priorityIs = true;

            mIcon1->setObjectName("ListViewItemMessageIconPriorityLow");

            mIcon1->setIcon(NmIcons::getIcon(NmIcons::NmIconPriorityLow));

            mIcon1->show();

            break;

        }

        case NmMessagePriorityHigh: {

            priorityIs = true;

            mIcon1->setObjectName("ListViewItemMessageIconPriorityHigh");

            mIcon1->setIcon(NmIcons::getIcon(NmIcons::NmIconPriorityHigh));

            mIcon1->show();

            break;

        }

        case NmMessagePriorityNormal: {

            break;

        }

        default:

            break;

    }

    // Attachments.

    HbIconItem *attaIcon = (priorityIs ? mIcon2 : mIcon1);

    if (envelope.hasAttachments()) {

        HbIcon &icon = NmIcons::getIcon(NmIcons::NmIconAttachment);

        attaIcon->setIcon(icon);

        attaIcon->setObjectName("ListViewItemMessageIconAttachment");

        attaIcon->show();

    }

    else {

        attaIcon->setIcon(HbIcon());

        attaIcon->setObjectName(QString());

    }

    // Message read status.

    bool msgReadStatus(envelope.isRead());

    HbFrameDrawer *drawer(NULL);

    HbStyle::setItemName(mNewMsgIcon, "msgicon");

    if (!msgReadStatus) {

        setFontsUnread();

        mNewMsgIcon->setObjectName("ListViewItemMessageIconUnread");

        drawer = new HbFrameDrawer("qtg_fr_list_new_item",

                HbFrameDrawer::ThreePiecesVertical);

        drawer->setFillWholeRect(false);

        // Set drawer. Takes ownership of the drawer and deletes previous drawer.

        mNewMsgIcon->setFrameDrawer(drawer);

        mNewMsgIcon->show();

    } else {

        setFontsRead();

        mNewMsgIcon->setObjectName("ListViewItemMessageIconRead");

        drawer = new HbFrameDrawer(); // Create empty drawer.

        drawer->setFillWholeRect(false);

        // Set drawer. Takes ownership of the drawer and deletes previous drawer.

        mNewMsgIcon->setFrameDrawer(drawer);

        mNewMsgIcon->hide();        

    }

}

/*!

    Set fonts unread.

 */

void  NmMessageListViewItem::setFontsUnread()

{

    HbFontSpec fontSpec(HbFontSpec::Primary);

    setFonts(colorRole, fontSpec);

}

/*!

    Set fonts read.

 */

void  NmMessageListViewItem::setFontsRead()

{

    HbFontSpec fontSpec(HbFontSpec::Secondary);

    setFonts(colorRole, fontSpec);

}

/*!

    Get font sizes.

 */

void  NmMessageListViewItem::getFontSizes()

{

    // Get font sizes from style.

    qreal currentSize;

    bool found = style()->parameter(QString("hb-param-text-height-primary"), currentSize );

    if (found) {

        mPrimarySize = currentSize;

    }      

    found = style()->parameter(QString("hb-param-text-height-secondary"), currentSize );

    if (found) {

        mSecondarySize = currentSize;

    }        

}

/*!

    Set fonts.

 */

void  NmMessageListViewItem::setFonts(const QColor &colorRole, 

        HbFontSpec &fontSpec)

{

    // Change sizes explicitly since css is overwritten in polish now.    

    if (mSender && mSubject && mTime) {

        if (mPrimarySize) {

            fontSpec.setTextHeight(mPrimarySize);

        }      

        mSender->setFontSpec(fontSpec);

        mSender->setTextColor(colorRole);

        if (mSecondarySize) {

            fontSpec.setTextHeight(mSecondarySize);

        }        

        mSubject->setFontSpec(fontSpec);

        mSubject->setTextColor(colorRole);

        mTime->setFontSpec(fontSpec);        

        mTime->setTextColor(colorRole);

    }

}

/*!

    Get sender field text. Function returns sender field text from

    envelope based on currently used function.

 */

QString NmMessageListViewItem::senderFieldText(const NmMessageEnvelope &envelope)

{

    QString ret;  

    QVariant folderType = modelIndex().data(

            NmFolderTypeRole).value<QVariant>();

    switch (folderType.toInt()) {

        // Outbox, drafts and sent folder, sender name is 

        // replaced with first recipient from to/cc list.

        case NmFolderOutbox:

        case NmFolderDrafts:

        case NmFolderSent:

        {

            QList<NmAddress>& toRecipients = envelope.toRecipients();

            QList<NmAddress>& ccRecipients = envelope.ccRecipients();

            NmAddress addressToUse;

            bool foundAddress(false);

            if (toRecipients.count()){

                addressToUse=toRecipients[0];

                foundAddress=true;

            }

            else if (ccRecipients.count()) {

                addressToUse=ccRecipients[0]; 

                foundAddress=true;         

            }

            if (foundAddress){

                QString displayName = addressToUse.displayName();

                if (displayName.length()) {

                    ret += NmUtilities::cleanupDisplayName(displayName);

                } 

                else {

                    ret += addressToUse.address();                    

                }               

            }

        }

        break;    

        // All other folders will show sender display name.

        default: 

        {

            QString displayName = envelope.sender().displayName();

            if (displayName.length()) {

                ret += NmUtilities::cleanupDisplayName(displayName);

            } 

            else {

                ret += envelope.sender().address();                    

            }

        }

        break;

    }

    return ret;

}

/*!

    Handle font color changes in the case of theme change

 */ 

bool NmMessageListViewItem::event(QEvent *event)

{

    bool ret = HbTreeViewItem::event(event);    

    if (event && event->type() == HbEvent::ThemeChanged) {

        NmMessageListModelItem *msgModelItem(NULL);

        msgModelItem = modelIndex().data(

            Qt::DisplayRole).value<NmMessageListModelItem*>();

        if (msgModelItem && !msgModelItem->envelope().isRead()) {

            setFontsUnread();

        }

        else if (msgModelItem) {

            setFontsRead();

        }

    }

    return ret;

}