/*

* Copyright (c) 2008 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 <QGraphicsSceneMouseEvent>

#include <HbStyle>

#include <HbStyleLoader>

#include <HbFrameItem>

#include <HbFrameDrawer>

#include <HbIconItem>

#include <HbTextItem>

#include <HbTouchArea>

#include <HbInstantFeedback>

#include <HbTapGesture>

#include "dialerwidget.h"

#ifdef Q_OS_SYMBIAN

    #include "dialerwidgetengine.h"

    #include "qtphonelog.h"

    #include <xqappmgr.h>

    #include <xqservicerequest.h>

    #include <xqpublishandsubscribeutils.h>

    #include <xqrequestinfo.h>

    #include <xqaiwdecl.h>

#else

    #define PHONE_TRACE

#endif

const QLatin1String KDialerWidgetIconNormal("qtg_graf_hs_dialer_normal");

const QLatin1String KDialerWidgetIconPressed("qtg_graf_hs_dialer_pressed");

const QLatin1String KDialerWidgetMissedCallBadge("qtg_fr_shortcut_badge_bg");

const QLatin1String KDialerWidgetWidgetml(":/resource/dialerwidget.widgetml");

const QLatin1String KDialerWidgetCss(":/resource/dialerwidget.css");

const QLatin1String KDialerWidgetNormalLayout("normal");

const QLatin1String KDialerWidgetMissedCallLayout("missed_call");

const int KDialerWidgetMaxBadgeTextLenght = 2; // displayable

// update corresponding values also in css side

const qreal KDialerWidgetNormalSize = 12.0; // unit

const qreal KDialerWidgetMissedCallSize = 12.75; // unit

/*!

    \class DialerWidget

    \ingroup group_dialerwidgetplugin

    \brief Implementation for the homescreen dialer launcher.

*/

/*!

    Constructs dialer widget with given \a parent and given window \a flags.

*/

DialerWidget::DialerWidget(QGraphicsItem *parent, Qt::WindowFlags flags)

  : HbWidget(parent, flags),

    m_background(0),

    m_badgeBackground(0),

    m_text(0),

    m_touchArea(0),

    m_engine(0)

{   

    PHONE_TRACE

    createPrimitives();

    HbStyleLoader::registerFilePath(KDialerWidgetWidgetml);

    HbStyleLoader::registerFilePath(KDialerWidgetCss);

    setLayout(KDialerWidgetNormalLayout);

}

/*!

    Destructor.

*/

DialerWidget::~DialerWidget()

{

    HbStyleLoader::unregisterFilePath(KDialerWidgetWidgetml);

    HbStyleLoader::unregisterFilePath(KDialerWidgetCss);

}

/*!

    Lenght of badge text.

*/

int DialerWidget::badgeTextLenght() const

{

    return m_text->text().length();

}

/*!

    Layout name.

*/

QString DialerWidget::layoutName() const

{

    return m_layoutName;

}

/*!

    \fn void DialerWidget::startDialer()

    Starts dialer widget via view activation service.

*/

void DialerWidget::startDialer()

{

    PHONE_TRACE

#ifdef Q_OS_SYMBIAN

    QList<QVariant> args;

    QString service;

    QString interface;

    QString operation;

    service = "logs";

    interface = XQI_LOGS_VIEW;

    operation = XQOP_LOGS_SHOW;

    QVariantMap map;

    map.insert(XQLOGS_VIEW_INDEX, QVariant(int(XQService::LogsViewAll)));

    map.insert(XQLOGS_SHOW_DIALPAD, QVariant(true));

    map.insert(XQLOGS_DIALPAD_TEXT, QVariant(QString()));

    args.append(QVariant(map));

    XQApplicationManager appManager;

    QScopedPointer<XQAiwRequest> request(appManager.create(service, interface, operation, false));

    if (request == NULL) {

        PHONE_TRACE1("service not found");

        return;

    }

    request->setArguments(args);

    request->setSynchronous(false);

    bool ret = request->send();

    PHONE_TRACE2("request sent successfully:", ret);

#endif

}

void DialerWidget::onInitialize()

{

    PHONE_TRACE

#ifdef Q_OS_SYMBIAN

    QT_TRY{

        // Engine construction is 2 phased 

        m_engine = new DialerWidgetEngine();

        connect(m_engine, SIGNAL( exceptionOccured(const int&) )

                ,this, SLOT( onEngineException(const int&) ) );

        connect( m_engine, SIGNAL(missedCallsCountChanged(const int&)),

                        this, SLOT(onMissedCallsCountChange(const int&)));

        if(!m_engine->initialize()){

            //engine construction failed. Give up.

            emit error();

            return;

            }

        }

    QT_CATCH(...){

        emit error();

    }

#endif

}

/*!

    \fn void DialerWidget::onShow()

    Shows the widget

*/

void DialerWidget::onShow()

{

    PHONE_TRACE

}

/*!

    \fn void DialerWidget::onHide()

    Hides the widget

*/

void DialerWidget::onHide()

{

    PHONE_TRACE

}

/*!

    \fn void DialerWidget::onUninitialize()

    Uninitializes the widget

*/

void DialerWidget::onUninitialize()

{

    PHONE_TRACE

    delete m_engine;

    m_engine = 0;

}

void DialerWidget::onEngineException(const int& exc)

{

    Q_UNUSED(exc);

    emit error();

}

void DialerWidget::onMissedCallsCountChange(const int& count)

{

    if (count){

        QString newText = QLocale::system().toString(count);

        if (newText.length()>KDialerWidgetMaxBadgeTextLenght) {

            newText = QLatin1String("*");

        }

        bool doRepolish = (m_text->text().length() != newText.length());

        m_badgeBackground->setVisible(true);

        m_text->setText(newText);

        m_text->setVisible(true);

        if (doRepolish) {

            repolish();

        }

        setLayout(KDialerWidgetMissedCallLayout);

    } else {

        m_badgeBackground->setVisible(false);

        m_text->setVisible(false);

        setLayout(KDialerWidgetNormalLayout);

    }

}

void DialerWidget::gestureEvent(QGestureEvent *event)

{

    HbTapGesture *gesture = qobject_cast<HbTapGesture *>(event->gesture(Qt::TapGesture));

    if (gesture) {

        switch (gesture->state()) {

            case Qt::GestureStarted:

                setBackgroundToPressed();

                break;            

            case Qt::GestureCanceled:

                setBackgroundToNormal();

                break;

            case Qt::GestureFinished:

                setBackgroundToNormal();

                if (gesture->tapStyleHint() == HbTapGesture::Tap) {

                    HbInstantFeedback::play(HbFeedback::Basic);

                    startDialer();

                }

                break;

            default:

                break;

        }

    }

}

QRectF DialerWidget::boundingRect() const

{

    return childrenBoundingRect();

}

QPainterPath DialerWidget::shape() const

{

    QPainterPath path;

    path.addRect(boundingRect());

    return path;

}

void DialerWidget::createPrimitives()

{   

    // Background

    if (!m_background) {

        HbFrameDrawer *drawer = new HbFrameDrawer(

            KDialerWidgetIconNormal, HbFrameDrawer::OnePiece);

        m_background = new HbFrameItem(drawer, this);

        style()->setItemName(m_background, QLatin1String("background"));

    }

    // Badge background

    if (!m_badgeBackground) {

        HbFrameDrawer *badgedrawer = new HbFrameDrawer(

            KDialerWidgetMissedCallBadge, HbFrameDrawer::ThreePiecesHorizontal);

        m_badgeBackground = new HbFrameItem(badgedrawer, this);

        style()->setItemName(m_badgeBackground, QLatin1String("badgeBackground"));

        m_badgeBackground->setVisible( false );

    }

    // Text

    if (!m_text) {

        m_text = new HbTextItem(this);

        style()->setItemName(m_text, QLatin1String("badgeText"));

        m_text->setVisible(false);

    }

    // Touch area

    if (!m_touchArea) {

        m_touchArea = new HbTouchArea(this);

        m_touchArea->setFlag(QGraphicsItem::ItemIsFocusable);

        style()->setItemName(m_touchArea, QLatin1String("touchArea"));

        setFiltersChildEvents(true);

        m_touchArea->grabGesture(Qt::TapGesture);

    }

}

void DialerWidget::setBackgroundToNormal()

{

    if (m_background) {

        m_background->frameDrawer().

            setFrameGraphicsName(KDialerWidgetIconNormal);

    }

}

void DialerWidget::setBackgroundToPressed()

{

    if (m_background) {

        m_background->frameDrawer().

            setFrameGraphicsName(KDialerWidgetIconPressed);

    }

}

void DialerWidget::setLayout(const QString& layoutName)

{

    if (layoutName==m_layoutName) {

        return;

    }

    qreal unit = HbDeviceProfile::profile(this).unitValue();

    prepareGeometryChange();

    if (layoutName==KDialerWidgetMissedCallLayout) {

        resize(KDialerWidgetMissedCallSize*unit,

               KDialerWidgetMissedCallSize*unit);

    } else {

        resize(KDialerWidgetNormalSize*unit,

               KDialerWidgetNormalSize*unit);

    }

    m_layoutName = layoutName;

    repolish();

}