/*

* 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 <HbView>

#include <HbEvent>

#include <QFontMetrics>

#include "datapopup.h"

#include "enginewrapper.h"

#include "popupdatacontainer.h"

DataPopup::DataPopup(EngineWrapper &engine) :

        mEngine(engine),

        mPopupCreated(false),

        mPopupVisible(false)

{

    connect(&mEngine, SIGNAL(samplesUpdated()), this, SLOT(updateSamples()));

    connect(&mEngine, SIGNAL(settingsUpdated()), this, SLOT(updateSettings()));

    connect(this, SIGNAL(dataReceived(QVariantMap)), this, SLOT(triggerAction(QVariantMap)));

}

void DataPopup::show()

{

    mPopupVisible = true;

    if (!mPopupCreated &&

        mEngine.sampleEntries().length() &&

        mEngine.settings().dataPopupSources().enabledIndexes().length())

    {

        bool anyData = false;

        foreach (QVariant index, mEngine.settings().dataPopupSources().enabledIndexes())

            anyData = anyData || mEngine.sampleEntries().at(index.toInt()).sampleCount();

        if (anyData) {

            mPopupCreated = HbDeviceDialog::show("com.nokia.rnd.perfmondatapopup/1.0",

                                                 collectParams());

        }

    }

}

void DataPopup::hide()

{

    mPopupVisible = false;

    if (mPopupCreated) {

        mPopupCreated = !cancel();

    }

}

void DataPopup::updateSamples()

{

    updateData();

}

void DataPopup::updateSettings()

{

    // mEngine.settings().dataPopupVisibility can only be changed from

    // main window, so we may assume the window is in foreground

    updateVisibility(true);

    updateData();

}

void DataPopup::updateVisibility(bool foreground)

{

    if (mEngine.settings().dataPopupVisibility() == EDataPopupVisbilityAlwaysOn ||

        (mEngine.settings().dataPopupVisibility() == EDataPopupVisbilityBackgroundOnly && !foreground)) {

        show();

    } else {

        hide();

    }

}

void DataPopup::triggerAction(QVariantMap data)

{

    if (data.contains("mouseEvent") && data["mouseEvent"].toString() == "press") {

        emit clicked();

        // data popup was clicked, move it to other position

        mEngine.settings().setDataPopupLocation(

                EDataPopupLocationBottomMiddle - mEngine.settings().dataPopupLocation());

        mEngine.updateSettings();

    }

}

QVariantMap DataPopup::collectParams() const

{

    QVariantMap result;

    // add location param

    result["location"] = mEngine.settings().dataPopupLocation();

    // add lines param

    QStringList lines;

    QList<SampleEntry> entries = mEngine.sampleEntries();

    for (int i=0; i<entries.length(); i++)

    {

        if (mEngine.settings().dataPopupSources().isEnabled(i) &&

            entries.at(i).sampleCount() > 0)

        {

            const SampleEntry &entry = entries.at(i);

            const SampleData &sample = entry.sample(0);

            if (i == ESourceCPU)

            {

                // CPU

                double perc = sample.mSize > 0 ?

                              100. - 100. * sample.mFree / sample.mSize : 0;

                QString text = tr("%1 %2%").arg(entry.description()).

                               arg(perc, 0, 'f', 0);

                lines.append(text);

            }

            else

            {

                // RAM and Drives

                QString text = tr("%1 free %L2%3").arg(entry.description()).

                               arg(sample.mFree).arg(entry.unitShort());

                lines.append(text);

            }

        }

    }

    result["lines"] = lines;

    return result;

}

void DataPopup::updateData()

{

    if (!mPopupVisible)

        return;

    if (!mPopupCreated) {

        show();

    } else {

        HbDeviceDialog::update(collectParams());

    }

}