/*

* 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: tsactivitymodelitem.cpp

*

*/

#include <hbicon.h>

#include <afstorageglobals.h>

#include "tsactivitymodelitem.h"

#include "tsdataroles.h"

/*!

    \class TsActivityModelItem

    \ingroup group_tsdevicedialogplugin

    \brief Item presenting activity in the grid.

*/

/*!

    Standard C++ constructor

    /param model - reference to parent model

    /param service - reference to initialized ActivityManager instance

    /param entry - Activity data

*/

TsActivityModelItem::TsActivityModelItem(QAbstractListModel &model,

                                         QObject& service, 

                                         const QVariantHash & activity)

    :

    mService(service),

    mActivity(activity),

    mIcon(),

    mRequestPending(false)

{

    connect(this,

            SIGNAL(entryChanged(TsModelItem *)),

            &model,

            SLOT(entryChanged(TsModelItem *)));

    connect(&mService,

            SIGNAL(thumbnailReady(QPixmap, void *)),

            this,

            SLOT(thumbnailReady(QPixmap, void *)));

}

/*!

    Standard C++ destructor

    /param service - reference to initialized ActivityManager instance

    /param entry - Activity data

*/

TsActivityModelItem::~TsActivityModelItem()

{

}

/*!

    Returns the data stored under the given role.

    /param role - requested data role

    /return data encapulated by QVariant

*/

QVariant TsActivityModelItem::data(int role) const

{

    switch (role) {

        case Qt::DisplayRole:

            return displayRole();

        case Qt::DecorationRole:

            return decorationRole();

        case TsDataRoles::Closable:

            return QVariant(false);

        case TsDataRoles::Active:

            return QVariant(false);

        default:

            return QVariant(QVariant::Invalid);

    }

}

/*!

    Empty interface implementation

*/

void TsActivityModelItem::close()

{

    //no implementation required

}

/*!

    Open or move to foreground activity repesented by entry

*/

void TsActivityModelItem::open()

{

    QVariant application(mActivity.value(ActivityApplicationKeyword));

    QVariant activity(mActivity.value(ActivityActivityKeyword));

    if (application.isValid() && activity.isValid()) {

        QMetaObject::invokeMethod(&mService,

                                  "launchActivity",

                                  Q_ARG(int, application.toInt()),

                                  Q_ARG(QString, activity.toString()));

    }

}

/*!

    Return application name keyword

*/

QString TsActivityModelItem::applicationKeyword()

{

    static QString applicationName(ActivityApplicationName);

    return applicationName;

}

/*!

    Return activity visibility status keyword

*/

QString TsActivityModelItem::visibilityKeyword()

{

    static QString visibility("visible");

    return visibility;

}

/*!

    Return activity screenshot keyword

*/

QString TsActivityModelItem::screenshotKeyword()

{

    static QString screenshot(ActivityScreenshotKeyword);

    return screenshot;

}

/*!

    Returns the data stored under decoration role.

    /return data encapulated by QVariant

*/

QVariant TsActivityModelItem::decorationRole() const

{

    if (!mRequestPending) {

        const_cast<TsActivityModelItem *>(this)->mRequestPending = true;

        QVariant screenshot = mActivity.value(screenshotKeyword());

        if (screenshot.isValid()) {

            QMetaObject::invokeMethod(&mService,

                                      "getThumbnail",

                                      Q_ARG(QSize, QSize(128, 128)),

                                      Q_ARG(QString, screenshot.toString()),

                                      Q_ARG(void *, const_cast<TsActivityModelItem *>(this)));

        }

    }

    return QVariant::fromValue<HbIcon>(HbIcon(mIcon));

}

/*!

    Returns the data stored under display role.

    /return data encapulated by QVariant

*/

QVariant TsActivityModelItem::displayRole() const

{

    return mActivity.value(applicationKeyword());

}

/*!

    Slot retrieve thumbnail form TM, update content and notify observers

    /param pixmap - thumbnail content

    /ptr - user data provided to request

*/

void TsActivityModelItem::thumbnailReady(QPixmap pixmap, void *ptr)

{

    if (ptr == this) {

        mIcon = pixmap;

        emit entryChanged(this);

    }

}