/*

* 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,parent),

mApplication(application),

mMailboxListWidget(NULL),

mUiEngine(uiEngine),

mListModel(mailboxListModel),

mItemContextMenu(NULL),

mDocumentLoader(documentLoader)

{

    loadViewLayout();

    refreshList();

}

/*!

    Destructor

*/

NmMailboxListView::~NmMailboxListView()

{

    delete mDocumentLoader;

    mWidgetList.clear();

    if (mItemContextMenu){

        mItemContextMenu->clearActions();

    }

    delete mItemContextMenu;

}

/*!

    View layout loading from XML

*/

void NmMailboxListView::loadViewLayout()

{

    // 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 == true && mWidgetList.count()) {

        // 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) {

            NMLOG("nmailui: mailboxlistview: List object loaded");

            // Set item prototype.

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

            mMailboxListWidget->setItemRecycling(true);

            QObject::connect(mMailboxListWidget,

                    SIGNAL(activated(const QModelIndex &)),

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

            QObject::connect(mMailboxListWidget,

                    SIGNAL(longPressed(HbAbstractViewItem*, const QPointF&)),

                this, SLOT(showItemContextMenu(HbAbstractViewItem*,const QPointF&)));

            mMailboxListWidget->setClampingStyle(HbScrollArea::BounceBackClamping);

            mMailboxListWidget->setFrictionEnabled(true);

        }

        else {

            NMLOG("nmailui: mailboxlistview: List object loading failed");

        }

    }

    else {

         NMLOG("nmailui: mailboxlistview: Reasource loading failed");

    }

	// set menubar title

	setTitle(hbTrId("txt_mail_title_mail"));

}

/*!

    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)

{

    // 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 {

        NMLOG("nmailui: mailboxlistview: Invalid start parameter");

        // Unused start parameter needs to be deleted

        delete startParam;

        startParam = NULL;

    }

}

/*!

    View id

*/

NmUiViewId NmMailboxListView::nmailViewId() const

{

    return NmUiViewMailboxList;

}

/*!

    Refresh list

*/

void NmMailboxListView::refreshList()

{

	if (mMailboxListWidget) {

        mMailboxListWidget->setModel(&mListModel);

	}

}

/*!

    Open selected mailbox

*/

void NmMailboxListView::openSelectedMailBox(const QModelIndex &index)

{

    // Get mailbox meta data

    NmMailboxMetaData *mailbox =

        mListModel.data(index, 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);

    }

}

/*!

    showItemContextMenu. Functions starts fetching item context menu objects

    from extension. Menu is displayed in view callback funtion.

*/

void NmMailboxListView::showItemContextMenu(HbAbstractViewItem *item, const QPointF &coords)

{

    if (mItemContextMenu&&item){

        // Clear previous items from context menu

        mItemContextMenu->clearActions();

        // Get mailbox meta data

        NmMailboxMetaData *mailbox =

            mListModel.data(item->modelIndex(), Qt::DisplayRole).value<NmMailboxMetaData*>();

        NmId mailboxId(0);

        if (mailbox) {

            mailboxId = mailbox->id();

        }

        // Fetch items from extension based on item

        NmActionRequest request(this, NmActionContextMenu, NmActionContextViewNone,

        		NmActionContextDataMailbox, mailboxId);

        NmUiExtensionManager &extMngr = mApplication.extManager();

        QList<NmAction*> list;

        extMngr.getActions(request, list);

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

            mItemContextMenu->addAction(list[i]);

        }

        // Display menu

        if (mMailboxListWidget){

            mMailboxListWidget->setCurrentIndex(item->modelIndex());

            mItemContextMenu->setObjectName("MailboxItemContextMenu");

            mItemContextMenu->exec(coords);

        }

    }

}

/*!

    handleActionCommand. From NmMenuObserver, extension manager calls this

    call to handle menu command in the UI.

*/

void NmMailboxListView::handleActionCommand(NmActionResponse &actionResponse)

{

    // Handle context menu commands here

    if (actionResponse.menuType()==NmActionContextMenu){

        switch (actionResponse.responseCommand()){

            case NmActionResponseCommandOpen:{

                // Check that given start response has mailbox and folder id's

                if (actionResponse.mailboxId()!=0){

                    // Use standard folder id inbox if folder has not been specified

                    NmId folderId = actionResponse.folderId();

                    if (folderId==0){

                        folderId=mUiEngine.standardFolderId(actionResponse.mailboxId(),

                                                            NmFolderInbox);

                    }

                    NmUiStartParam *startParam = new NmUiStartParam(NmUiViewMessageList,

                                                                    actionResponse.mailboxId(),

                                                                    folderId);

                    mApplication.enterNmUiView(startParam);

                    }

                }

                break;

            default:

                break;

        }

    }

}