/*

* 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:

*

*/

// Layout file and view

static const char *NMUI_MAILBOX_LIST_VIEW_XML = ":/docml/nmmailboxlistview.docml";

static const char *NMUI_MAILBOX_LIST_VIEW = "NmMailboxListView";

static const char *NMUI_MAILBOX_LIST_WIDGET = "MailboxListWidget";

#include "nmuiheaders.h"

/*!

	\class NmMailboxListView

	\brief Mailbox list view

*/

/*!

    Constructor

*/

NmMailboxListView::NmMailboxListView(

    NmApplication &application,

    NmUiStartParam* startParam,

    NmUiEngine &uiEngine,

    NmMailboxListModel &mailboxListModel,

    HbDocumentLoader *documentLoader,

    QGraphicsItem *parent)

: NmBaseView(startParam, application, parent),

mApplication(application),

mMailboxListWidget(NULL),

mUiEngine(uiEngine),

mListModel(mailboxListModel),

mItemContextMenu(NULL),

mDocumentLoader(documentLoader),

mViewReady(false)

{

    NM_FUNCTION;

    // Load view layout

    loadViewLayout();

    // Set title

    setTitle(hbTrId("txt_mail_title_mail"));

}

/*!

    Destructor

*/

NmMailboxListView::~NmMailboxListView()

{

    NM_FUNCTION;

    delete mDocumentLoader;

    mWidgetList.clear();

    if (mItemContextMenu){

        mItemContextMenu->clearActions();

    }

    delete mItemContextMenu;

}

/*!

    View layout loading from XML

*/

void NmMailboxListView::loadViewLayout()

{

    NM_FUNCTION;

    // Use document loader to load the view

     bool ok(false);

     setObjectName(QString(NMUI_MAILBOX_LIST_VIEW));

     QObjectList objectList;

     objectList.append(this);

     // Pass the view to documentloader. Document loader uses this view

     // when docml is parsed, instead of creating new view.

     if (mDocumentLoader) {

         mDocumentLoader->setObjectTree(objectList);

         mWidgetList = mDocumentLoader->load(NMUI_MAILBOX_LIST_VIEW_XML, &ok);

     }

    if (ok) {

        // Create item context menu

        mItemContextMenu = new HbMenu();

        // Get mailbox widget pointer and set parameters

        mMailboxListWidget = qobject_cast<HbListView *>

            (mDocumentLoader->findWidget(NMUI_MAILBOX_LIST_WIDGET));

        if (mMailboxListWidget) {

            NM_COMMENT("nmailui: mailboxlistview: list object loaded");

            // Set item prototype.

            mMailboxListWidget->setItemPrototype(new NmMailboxListViewItem(this));

            mMailboxListWidget->setItemRecycling(true);

            QObject::connect(mMailboxListWidget,

                    SIGNAL(activated(const QModelIndex &)),

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

            mMailboxListWidget->setClampingStyle(HbScrollArea::BounceBackClamping);

            mMailboxListWidget->setFrictionEnabled(true);

        }

        else {

            NM_ERROR(1,"nmailui: mailboxlistview: list object loading failed");

        }

    }

    else {

         NM_ERROR(1,"nmailui: mailboxlistview: resource loading failed");

    }

}

/*!

    Lazy loading when view layout has been loaded

*/

void NmMailboxListView::viewReady()

{

    NM_FUNCTION;

    if (!mViewReady){

        // Set title

        setTitle(hbTrId("txt_mail_title_mail"));

        // Refresh list

        QMetaObject::invokeMethod(this, "refreshList", Qt::QueuedConnection); 

        mViewReady=true;

    }

}

/*!

    Reload view contents with new start parameters

    Typically when view is already open and external view activation occurs

    for this same view

*/

void NmMailboxListView::reloadViewContents(NmUiStartParam* startParam)

{

    NM_FUNCTION;

    // Check start parameter validity.

    if (startParam&&startParam->viewId()==NmUiViewMailboxList) {

        // Delete existing start parameter data

        delete mStartParam;

        mStartParam=NULL;

        // Store new start parameter data

        mStartParam=startParam;

        // Refresh model

        refreshList();

    }

    else {

        NM_ERROR(1,"nmailui: mailboxlistview: invalid start parameter");

        // Unused start parameter needs to be deleted

        delete startParam;

        startParam = NULL;

    }

}

/*!

    View id

*/

NmUiViewId NmMailboxListView::nmailViewId() const

{

    NM_FUNCTION;

    return NmUiViewMailboxList;

}

/*!

    Refresh list

*/

void NmMailboxListView::refreshList()

{

    NM_FUNCTION;

	if (mMailboxListWidget) {

        mMailboxListWidget->setModel(&mListModel);

	}

}

/*!

    Item activated slot

*/

void NmMailboxListView::itemActivated(const QModelIndex &index)

{

    NM_FUNCTION;

    mActivatedIndex = index;

    QMetaObject::invokeMethod(this, "openSelectedMailBox", Qt::QueuedConnection);

}

/*!

    Open selected mailbox

*/

void NmMailboxListView::openSelectedMailBox()

{

    NM_FUNCTION;

    // Get mailbox meta data

    NmMailboxMetaData *mailbox =

        mListModel.data(mActivatedIndex, Qt::DisplayRole).value<NmMailboxMetaData*>();

    if (mailbox) {

        // Get standard folder inbox id

        NmId inboxId = mUiEngine.standardFolderId(mailbox->id(), NmFolderInbox);

        // Create start params and launch message list view

        NmUiStartParam *startParam = new NmUiStartParam(NmUiViewMessageList,mailbox->id(),inboxId);

        mApplication.enterNmUiView(startParam);

    }

}