/*

* 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 "nmuiheaders.h"

static const char *NMUI_MAILBOX_SELECTION_DIALOG_XML = ":/docml/nmmailboxselectiondialog.docml";

static const char *NMUI_MAILBOX_LIST_VIEW = "mailboxListView";

static const char *NMUI_MAILBOX_SELECTION_DIALOG = "mailboxSelectionDialog";

/*!

    \class NmMailboxSelectionDialog

    \brief Selection dialog for the mailboxes. Displays a dialog from which the

           user can select a mailbox. The dialog can be cancelled by pressing

           the cancel button.

*/

/*!

     Class constructor.

*/

NmMailboxSelectionDialog::NmMailboxSelectionDialog(

    NmMailboxListModel &mailboxListModel, QGraphicsItem *parent /* = 0 */)

    : mMailboxListView(NULL),

      mMailboxSelectionDialog(NULL),

      mContentItemModel(NULL),

      mMailboxListModel(mailboxListModel),

      mParent(parent),

      mMailboxId(0)

{

    // No implementation required.

}

/*!

    Class destructor.

*/

NmMailboxSelectionDialog::~NmMailboxSelectionDialog()

{

    delete mContentItemModel;

    delete mMailboxListView;

    delete mMailboxSelectionDialog;

}

/*!

    Initializes and displays the dialog.

    \param mailboxId Where the ID of the selected mailbox is stored.

    \return True if the user selected a mailbox, false otherwise.

*/

bool NmMailboxSelectionDialog::exec(NmId& mailboxId)

{

    NMLOG("NmMailboxSelectionDialog::exec()");

    mMailboxId = 0;

    // Initialize the UI and fetch the mailbox items into the list.

    if (initializeUi() && populateListItems()) {

        // The UI is ready. Do display the dialog.

        mMailboxSelectionDialog->exec();

        // Store the ID of the selected mailbox into the given argument.

        mailboxId = mMailboxId;

    }

    return (mMailboxId != 0);

}

/*!

    Creates the view for the mailbox selection dialog.

    \return True if the widgets were loaded and set up successfully, false

            otherwise.

*/

bool NmMailboxSelectionDialog::initializeUi()

{

    NMLOG("NmMailboxSelectionDialog::initializeUi()");

    // Use the document loader to load the widgets.

    HbDocumentLoader documentLoader;

    bool documentLoaded = false;

    QObjectList objectList;

    objectList.append(this);

    documentLoader.setObjectTree(objectList);

    mWidgetList =

        documentLoader.load(NMUI_MAILBOX_SELECTION_DIALOG_XML, &documentLoaded);

    if (documentLoaded && mWidgetList.count()) {

        // Get the dialog and the list view widgets.

        mMailboxSelectionDialog =

            qobject_cast<HbDialog*>(documentLoader.findWidget(NMUI_MAILBOX_SELECTION_DIALOG));

        mMailboxListView =

            qobject_cast<HbListView*>(documentLoader.findWidget(NMUI_MAILBOX_LIST_VIEW));

    }

    if (!mMailboxSelectionDialog || !mMailboxListView) {

        NMLOG("NmMailboxSelectionDialog::initializeUi(): Failed to load widgets!");

        return false;

    }

    // Set up the loaded widgets.

    mMailboxSelectionDialog->setParentItem(mParent);

    // Disable timeout.

    mMailboxSelectionDialog->setTimeout(HbDialog::NoTimeout);

    // Connect the list view to the slot. When the user selects an item

    // from the list, the slot should be called.

    connect(mMailboxListView, SIGNAL(activated(QModelIndex)),

            this, SLOT(itemActivated(QModelIndex)));

    // Item model initialization, data will be populated later.

    mContentItemModel = new QStandardItemModel(this);

    // Set the model for the list view. Use default prototype for now.

    mMailboxListView->setModel(mContentItemModel);

    // Set the item prototype.

    mMailboxSelectionDialog->setContentWidget(mMailboxListView);

    return true;

}

/*!

    Populates the list items (mailboxes).

    \return True if success, false otherwise.

*/

bool NmMailboxSelectionDialog::populateListItems()

{

    NMLOG("NmMailboxSelectionDialog::populateListItems()");

    const int count = mMailboxListModel.rowCount();

    if (!mContentItemModel || count == 0) {

        // The UI skeleton was not set up successfully or no mailboxes exist!

        return false;

    }

    NmMailboxMetaData *metaData = NULL;

    QStandardItem *item = NULL;

    for (int i = 0; i < count; ++i) {

        metaData = mailboxMetaData(i);

        if (metaData) {

            // Implement the branded icons when possible.

            const HbIcon &mailboxIcon =

                NmIcons::getIcon(NmIcons::NmIconDefaultMailbox);

            // Construct the item and append it into the list.

            item = new QStandardItem(mailboxIcon.qicon(), metaData->name());

            mContentItemModel->appendRow(item);

        }

    }

    return true;

}

/*!

    Retrieve the metadata for the given mailbox.

    \param index The index of the mailbox in the list model.

    \return A mailbox meta data instance.

*/

NmMailboxMetaData *NmMailboxSelectionDialog::mailboxMetaData(int index) const

{

    QVariant mailbox = mMailboxListModel.data(mMailboxListModel.index(index, 0));

    NmMailboxMetaData *mailboxMetaData = mailbox.value<NmMailboxMetaData*>();

    return mailboxMetaData;

}

/*!

    This slot is invoked when a list item is selected.

    \param index The index of the selected item.

*/

void NmMailboxSelectionDialog::itemActivated(QModelIndex index)

{

    const int rowIndex = index.row();

    NmMailboxMetaData *metaData = mailboxMetaData(rowIndex);

    if (metaData && mMailboxSelectionDialog) {

        mMailboxId = metaData->id();

        mMailboxSelectionDialog->close();

    }

}

// End of file.