/*

* 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:

*

*/

#include <QScopedPointer>

#include <QSignalMapper>

#include <hbdataform.h>

#include <hbdataformmodel.h>

#include <hbpushbutton.h>

#include <hbdataformviewitem.h>

#include <cpitemdatahelper.h>

#include <nmmailbox.h>

#include "nmmailboxentryitem.h"

#include "nmmailboxselectionview.h"

#include "nmsettingsviewfactory.h"

#include "nmmailboxsettingsmanager.h"

/*!

    \class NmMailboxSelectionView

    \brief Selection view for the mailbox accounts.

*/

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

/*!

    Constructor of NmMailboxSelectionView.

    Constructs the model and populates it with the mailbox items.

*/

NmMailboxSelectionView::NmMailboxSelectionView(

    const NmSettingsViewFactory &settingsFactory,

    NmMailboxSettingsManager &settingsManager,

    const QList<NmMailbox *> &mailboxList,

    QGraphicsItem *parent)

: CpBaseSettingView(0, parent),

  mSettingsManager(settingsManager),

  mSettingsFactory(settingsFactory),

  mRefreshForm(false)

{

    QScopedPointer<QSignalMapper> signalMapper(new QSignalMapper());

    // Connect the form's activated signal.

    HbDataForm *form = qobject_cast<HbDataForm*>(widget());

    connect(form, SIGNAL(activated(QModelIndex)),

        this, SLOT(itemActivate(QModelIndex)));

    QScopedPointer<CpItemDataHelper> itemHelper(new CpItemDataHelper());

    QScopedPointer<HbDataFormModel> model(new HbDataFormModel());

    // Ownership is not transferred yet.

    mItemDataHelper = itemHelper.data();

    mModel = model.data();

    // populate data.

    populateDataModel(mailboxList);

    (void)model.take();

    (void)itemHelper.take();

    mSignalMapper = signalMapper.take();

    // Set the localized title string.

    setTitle(hbTrId("txt_mail_title_mail"));

}

/*!

    Destructor of NmMailboxSelectionView.

*/

NmMailboxSelectionView::~NmMailboxSelectionView()

{

    delete mItemDataHelper;

    delete mModel;

    delete mSignalMapper;

}

/*!

    Handles the mailbox button click signal. Calls the SettingsViewFactory

    to construct the setting view for the selected mailbox account.

    \param item NmMailBoxEntryItem mapped for the button.

*/

void NmMailboxSelectionView::buttonClick(QObject *item)

{

    NmMailboxEntryItem *entryItem = static_cast<NmMailboxEntryItem *>(item);

    const NmId &id = entryItem->id();

    const QString &name = entryItem->text();

    mSettingsFactory.launchSettingView(id, name);

}

/*!

    Handels the dataform's activated signal when item is shown. 

    Maps the signal/mailbox item for the buttons.

    \param index Data model index.

*/

void NmMailboxSelectionView::itemActivate(const QModelIndex &index)

{

    HbDataForm *form = qobject_cast<HbDataForm*>(widget());

    HbDataFormModel *model = static_cast<HbDataFormModel *>(form->model());

    NmMailboxEntryItem *item = static_cast<NmMailboxEntryItem *>(model->itemFromIndex(index));

    if (!mSignalMapper->mapping(item)) {

        HbDataFormViewItem *viewItem = 

            static_cast<HbDataFormViewItem *>(form->itemByIndex(index));

        HbPushButton *button = 

            static_cast<HbPushButton *>(viewItem->dataItemContentWidget());

        connect(button, SIGNAL(pressed()), mSignalMapper, SLOT(map()));

        mSignalMapper->setMapping(button, item);

        connect(mSignalMapper, SIGNAL(mapped(QObject *)), 

            this, SLOT(buttonClick(QObject *)), Qt::UniqueConnection);

    }

}

/*!

    Populates the data model for the view.

    \param mailboxList List of all the available mailbox accounts.

*/

void NmMailboxSelectionView::populateDataModel(const QList<NmMailbox *> &mailboxList)

{

    mModel->clear();

    foreach (NmMailbox *mailbox, mailboxList) {

        NmId id = mailbox->id();

        QScopedPointer<NmMailboxEntryItem> item(

            new NmMailboxEntryItem(*mItemDataHelper, id, mailbox->name(),

                mSettingsManager.mailboxIcon(id)));

        mModel->appendDataFormItem(item.data());

        item.take();

    }

    HbDataForm *form = qobject_cast<HbDataForm*>(widget());

    form->setModel(mModel);

}

/*!

    Handles mailbox list changes.

    \param mailboxId mailbox id

    \param type type of change \sa nmsettingscommon.h

*/

void NmMailboxSelectionView::mailboxListChanged(const NmId &mailboxId,

    NmSettings::MailboxEventType type)

{

    switch (type) {

        case NmSettings::MailboxDeleted: {

            // Search correct item.

            QModelIndex itemModelIndex;

            bool found(false);

            const int rowCount(mModel->rowCount());

            for (int rowIndex(0); rowIndex < rowCount && !found; ++rowIndex) {

                itemModelIndex = mModel->index(rowIndex, 0);

                NmMailboxEntryItem *entryItem = static_cast<NmMailboxEntryItem *>(

                    mModel->itemFromIndex(itemModelIndex));

                if (entryItem && (entryItem->id() == mailboxId)) {

                    found = true;

                }

            }

            if (found) {

                // There is nothing that we can do if removing fails.

                (void)mModel->removeItem(itemModelIndex);

            }

            break;

        }

        default: {

            break;

        }

    }

}

/*!

    Handles mailbox property changes.

    \param mailboxId mailbox id

    \param property changed property \sa nmsettingscommon.h

    \param value changed value

*/

void NmMailboxSelectionView::mailboxPropertyChanged(const NmId &mailboxId,

    QVariant property, QVariant value)

{

    // Search correct item.

    NmMailboxEntryItem *entryItem = 0;

    const int itemCount(mModel->rowCount());

    for (int itemIndex(0); itemIndex < itemCount; ++itemIndex) {

        entryItem = static_cast<NmMailboxEntryItem *>(

            mModel->itemFromIndex(mModel->index(itemIndex, 0)));

        if (entryItem && (entryItem->id() == mailboxId)) {

            break;

        }

        entryItem = 0;

    }

    switch (property.toInt()) {

        case NmSettings::MailboxName:

            if (entryItem) {

                entryItem->setText(value.toString());

                mRefreshForm = true;

            }

            break;

        default:

            break;

    }

}