/*

* 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: Homescreen bookmark publishing client

*

*/

#include <qservicefilter.h>

#include <qserviceinterfacedescriptor.h>

#include <QMetaObject>

#include <QMetaMethod>

#include <QDir>

#include <QUrl>

#include <QIcon>

#include <QWebSettings>

#include <QCryptographicHash>

#include <QTime>

#include "bedrockprovisioning.h"

#include "hsbookmarkpublishclient.h"

namespace WRT {

/*!

    \ingroup group_bookmark_publish_client

    \class HsBookmarkPublishClient

    \brief Implementation for homescreen bookmark publish client.

    HsBookmarkClient is derived from QObject and implements 

    needed functions for the homescreen bookmark publish client. 

*/

/*!

    Constructor.

*/

HsBookmarkPublishClient::HsBookmarkPublishClient(QObject *parent)

    : QObject(parent),

      mWidgetUri("hsbookmarkwidgetplugin")

{

	  setObjectName("hsBookmarkPublishClient");

}

/*!

    Destructor

*/

HsBookmarkPublishClient::~HsBookmarkPublishClient()

{

}

/*!

    Adds widget \a widgetUri utilizing service interface and invokeMethod call

*/

int HsBookmarkPublishClient::addWidget(QString Title, QString Url)

{   

    // find interface IHomeScreenClient from service hshomescreenclientplugin 

    QServiceManager manager;

    QServiceFilter filter("com.nokia.symbian.IHomeScreenClient");

    filter.setServiceName("hshomescreenclientplugin");

    QList<QServiceInterfaceDescriptor> interfaces = manager.findInterfaces(filter);

    QVariantHash params;

    QString iconFileName;

    params["bookmarkTitle"] = Title;

    params["bookmarkUrl"] = Url;

    params["faviconPath"] = BEDROCK_PROVISIONING::BedrockProvisioning::createBedrockProvisioning()->valueAsString("DataBaseDirectory");

    if(interfaces.isEmpty()) {

        QServiceManager::Error error = manager.error();

        return FAILURE;

    }

    // Retrieve the favicon and check its exsistance

    QIcon icon = QWebSettings::iconForUrl(Url);

    if (!icon.isNull())

        iconFileName = getIconFileName(Url);

    params["faviconFileName"] = iconFileName;

    if (!saveFavicon(Url, iconFileName))

        return FAILURE;

    QObject* service = manager.loadInterface(interfaces.first());

    // access service's addWidget function

    bool retVal = false;

    bool ret = QMetaObject::invokeMethod( 

        service, 

        "addWidget",

        Qt::DirectConnection,

        Q_RETURN_ARG(bool, retVal),

        Q_ARG(QString,mWidgetUri),

        Q_ARG(QVariantHash,params));   

    if(!ret){

        // invokeMethod returned error

        return FAILURE;

    }

    if(!retVal){

        // addWidget returned error

        return FAILURE;

    }

    return SUCCESS;

}

bool HsBookmarkPublishClient::saveFavicon(const QString Url, const QString iconFileName)

{

    QIcon icon;

    QDir iconDir(BEDROCK_PROVISIONING::BedrockProvisioning::createBedrockProvisioning()->valueAsString("DataBaseDirectory"));

    QUrl url(Url);

    // Retrieve the favicon and check its exsistance

    icon = QWebSettings::iconForUrl(url);

    if (icon.isNull())

        return false;

    QString iconPath = iconDir.filePath(iconFileName);

    QFile iconFile(iconPath);

    iconFile.open(QIODevice::WriteOnly);

    QPixmap pixmap = icon.pixmap(30, 30);

    pixmap.save(&iconFile, "PNG");

    iconFile.close();

    return true;

}

/*!

    \internal

*/

QString HsBookmarkPublishClient::getIconFileName(QString url) const

{

    QByteArray hash = QCryptographicHash::hash(url.toAscii(), QCryptographicHash::Md5);

    QString iconFile = hash.left(16).toHex();    

    return iconFile + ".png";

}

}