/*

* 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:  

*

*/

#include <QDir>

#include <QFileInfo>

#include <HbMainWindow>

#include <HbView>

#include "hsselectbackgroundstate.h"

#include "hsscene.h"

#include "hsdomainmodeldatastructures.h"

#include "hswallpaper.h"

#include "hsdatabase.h"

#include "hshomescreenstatecommon.h"

#include "xqaiwgetimageclient.h"

#include "xqaiwcommon.h"

/*! 

    \class HsSelectBackgroundState

    \ingroup group_hshomescreenstateprovider

    \brief Implements imagefetcher event listening and handles those events.

    \sa StateMachine

*/

/*!

    Constructor.         

    \a parent Owner.

*/

HsSelectBackgroundState::HsSelectBackgroundState(QState *parent):

    QState(parent),

    mImageFetcher(0),

    mSourceView(0)

{

    mImageFetcher = new XQAIWGetImageClient;

    connect(this, SIGNAL(entered()), SLOT(action_selectWallpaper()));

    connect(this, SIGNAL(exited()), SLOT(action_disconnectImageFetcher()));

}

/*!

    Destructor.

*/

HsSelectBackgroundState::~HsSelectBackgroundState()

{

    delete mImageFetcher;

}

/*!

    \internal

    Connects to image fetcher and launches "remote" ui from photos

    from which user can select background image

 */

void HsSelectBackgroundState::action_selectWallpaper()

{

    mSourceView = HsScene::mainWindow()->currentView();

    connect(mImageFetcher, SIGNAL(fetchComplete(QStringList)),

            SLOT(onFetchComplete(QStringList)));

    connect(mImageFetcher, SIGNAL(fetchFailed(int)),

            SLOT(onFetchFailed(int)));

    mImageFetcher->fetch(QVariantMap(), SelectionSingle);

}

/*!

    \internal

    disconnects photos image fetcher services slots.

*/

void HsSelectBackgroundState::action_disconnectImageFetcher()

{

    HsScene::mainWindow()->setCurrentView(mSourceView);

    mImageFetcher->disconnect(this);

}

/*!

    \internal

*/

void HsSelectBackgroundState::onFetchComplete(QStringList imageStringList)

{

    HsScene *scene = HsScene::instance();

    HsDatabase *db = HsDatabase::instance();

    Q_ASSERT(db);

    HsSceneData sceneData;

    if (!db->scene(sceneData)) {

        emit event_waitInput();

        return;

    }

    QFileInfo fileInfo(imageStringList.first());

    QString fileExtension("");

    if (!fileInfo.suffix().isEmpty()) {

        fileExtension = fileInfo.suffix();

    }

    QFile::remove(sceneData.portraitWallpaper);

    QFile::remove(sceneData.landscapeWallpaper); 

    QString wallpaperDir = HsWallpaper::wallpaperDirectory();            

    QDir dir(wallpaperDir);

    if (!dir.exists()) {

        dir.mkpath(wallpaperDir);

    }

    QString portraitPath = HsWallpaper::wallpaperPath(

        Qt::Vertical, QString(), fileExtension);

    QString landscapePath = HsWallpaper::wallpaperPath(

        Qt::Horizontal, QString(), fileExtension);

        sceneData.portraitWallpaper = portraitPath;

        sceneData.landscapeWallpaper = landscapePath;

        if (db->updateScene(sceneData)) {

            scene->wallpaper()->setImagesById(QString(), fileInfo.suffix());

        }

    }

    emit event_waitInput();

}

/*!

    \internal

    Called when selection of background image fails  

*/

void HsSelectBackgroundState::onFetchFailed(int error)

{

    Q_UNUSED(error)

    emit event_waitInput();

}