/*

* 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 FILES

#include <qgraphicswidget.h>

#include <qaction.h>

#include <qactiongroup.h>

#include <hbmenu.h>

#include <hbaction.h>

#include <hbgroupbox.h>

#include <hbpushbutton.h>

#include "videocollectionuiloader.h"

#include "videolistview.h"

#include "videolistselectiondialog.h"

#include "videolistwidget.h"

#include "videohintwidget.h"

#include "videocollectionwrapper.h"

#include "videosortfilterproxymodel.h"

#include "videocollectionviewutils.h"

#include "videocollectiontrace.h"

// ---------------------------------------------------------------------------

// VideoCollectionUiLoader

// ---------------------------------------------------------------------------

//

VideoCollectionUiLoader::VideoCollectionUiLoader()

    : HbDocumentLoader()

    , mTimerId( 0 )

    , mSortGroup( 0 )

    , mIsService( false )

{

	FUNC_LOG;

}

// ---------------------------------------------------------------------------

// VideoCollectionUiLoader

// ---------------------------------------------------------------------------

//

VideoCollectionUiLoader::~VideoCollectionUiLoader()

{

	FUNC_LOG;

    // delete objects without a parent

	while (!mOrphans.isEmpty())

	{

		delete mOrphans.takeFirst();

	}

    // kill timer if running

    if (mTimerId)

    {

        killTimer(mTimerId);

        mTimerId = 0;

    }

    // clear queue and hash tables

    mQueue.clear();

    mDocmls.clear();

    mSections.clear();

    mObjects.clear();

    mPhases.clear();

}

// ---------------------------------------------------------------------------

// load

// ---------------------------------------------------------------------------

//

void VideoCollectionUiLoader::load(const QString &fileName, bool *ok)

{

	FUNC_LOG;

	if (!mDocmls.contains(fileName))

	{

		QObjectList list = HbDocumentLoader::load(fileName, ok);

		if (ok && *ok)

		{

	        mDocmls.insert(fileName);

		}

		// add objects without a parent to orphan list

		storeOrphans(list);

	}

	else

	{

	    *ok = true;

	}

}

// ---------------------------------------------------------------------------

// load

// ---------------------------------------------------------------------------

//

void VideoCollectionUiLoader::load(const QString &fileName,

    const QString &section,

    bool *ok)

{

	FUNC_LOG;

    if (!mSections.contains(section))

    {

        QObjectList list = HbDocumentLoader::load(fileName, section, ok);

        if (ok && *ok)

        {

            mSections.insert(section);

        }

        // add objects without a parent to orphan list

        storeOrphans(list);

    }

    else

    {

        *ok = true;

    }

}

// ---------------------------------------------------------------------------

// addData

// ---------------------------------------------------------------------------

//

void VideoCollectionUiLoader::addData(

    QList<VideoCollectionUiLoaderParam> params,

    QObject *receiver,

    const char *slot)

{

	FUNC_LOG;

    // go through all parameters and add then in to the queue

    foreach (VideoCollectionUiLoaderParam param, params)

    {

        addToQueue(param, receiver, slot);

    }

}

// ---------------------------------------------------------------------------

// loadPhase

// ---------------------------------------------------------------------------

//

void VideoCollectionUiLoader::loadPhase(int loadPhase)

{

	FUNC_LOG;

    if (!mPhases.contains(loadPhase))

    {

        mPhases.insert(loadPhase);

        if (!mTimerId)

        {

            runNext();

        }

    }

}

// ---------------------------------------------------------------------------

// removeOrphanFromList

// ---------------------------------------------------------------------------

//

void VideoCollectionUiLoader::removeOrphanFromList(QObject *object)

{

	FUNC_LOG;

    // remove from orphan list

    if (mOrphans.contains(object))

    {

        mOrphans.removeOne(object);

    }

    // remove from initialized objects list

    const QString &name = mObjects.key(object);

    if (!name.isEmpty())

    {

        // found from list, remove

        mObjects.remove(name);

    }

}

// ---------------------------------------------------------------------------

// setIsService

// ---------------------------------------------------------------------------

//

void VideoCollectionUiLoader::setIsService(bool isService)

{

	FUNC_LOG;

    mIsService = isService;

}

// ---------------------------------------------------------------------------

// doFindWidget

// ---------------------------------------------------------------------------

//

QGraphicsWidget* VideoCollectionUiLoader::doFindWidget(const QString &name, bool loadIfNotFound)

{

	FUNC_LOG;

    QGraphicsWidget *widget = 0;

    // 1. check from hash

    if (mObjects.contains(name))

    {

        widget = qobject_cast<QGraphicsWidget*>(mObjects.value(name));

    }

    // 2. load from document and initialize

    else if (loadIfNotFound)

    {

        // find object from queue

        int index = indexInQueue(name);

        if (index != -1)

        {

            // object found from queue, load and initialize object 

            const VideoCollectionUiLoaderParam &param = mQueue.at(index);

            widget = qobject_cast<QGraphicsWidget*>(executeRequest(param));

            // object in loading queue, remove it

            removeFromQueue(name);

        }

        else

        {

            // assuming that docml and section has already been loaded

            widget = HbDocumentLoader::findWidget(name);

        }

    }

    return widget;

}

// ---------------------------------------------------------------------------

// doFindObject

// ---------------------------------------------------------------------------

//

QObject* VideoCollectionUiLoader::doFindObject(const QString &name, bool loadIfNotFound)

{

	FUNC_LOG;

    QObject *object = 0;

    // 1. check from hash

    if (mObjects.contains(name))

    {

        object = mObjects.value(name);

    }

    // 2. load from document and initialize

    else if (loadIfNotFound)

    {

        // find object from queue

        int index = indexInQueue(name);

        if (index != -1)

        {

            // object found from queue, load and initialize object 

            const VideoCollectionUiLoaderParam &param = mQueue.at(index);

            object = executeRequest(param);

            // object in loading queue, remove it

            removeFromQueue(name);

        }

        else

        {

            // assuming that docml and section has already been loaded

            object = HbDocumentLoader::findObject(name);

        }

    }

    return object;

}

// ---------------------------------------------------------------------------

// addToQueue

// ---------------------------------------------------------------------------

//

void VideoCollectionUiLoader::addToQueue(VideoCollectionUiLoaderParam &param,

    QObject *receiver,

    const char *slot)

{

	FUNC_LOG;

	INFOQSTR_1("VideoCollectionUiLoader::addToQueue() name: %S", param.mName);

    // set receiver if not already set

    if (!param.mReceiver)

    {

        param.mReceiver = receiver;

    }

    // set slot if not already set

    if (!param.mMember)

    {

        param.mMember = slot;        

    }

    // check validity and hit it

    if (isValid(param))

    {

        // add the params in async queue

        mQueue.append(param);

    }

}

// ---------------------------------------------------------------------------

// getObject

// ---------------------------------------------------------------------------

//

QObject* VideoCollectionUiLoader::getObject(

    const VideoCollectionUiLoaderParam &param)

{

	FUNC_LOG;

    QObject *object = 0;

    if (param.mIsWidget)

    {

        object = HbDocumentLoader::findWidget(param.mName);

    }

    else

    {

        object = HbDocumentLoader::findObject(param.mName);

    }

    return object;

}

// ---------------------------------------------------------------------------

// prepareDocmlAndSection

// ---------------------------------------------------------------------------

//

bool VideoCollectionUiLoader::prepareDocmlAndSection(const char *docml,

    const char *section)

{

	FUNC_LOG;

    bool ok = true;

    // prepare docml

    if (docml && !mDocmls.contains(docml))

    {

        load(docml, &ok);

    }

    // prepare section

    if (ok && section && !mSections.contains(section))

    {

        load(docml, section, &ok);

    }

    return ok;

}

// ---------------------------------------------------------------------------

// initObject

// ---------------------------------------------------------------------------

//

void VideoCollectionUiLoader::initObject(QObject *object,

    const QString &name)

{

	FUNC_LOG;

    if (object)

    {

        INFOQSTR_1("VideoCollectionUiLoader::initObject() name: %S", name);

        VideoCollectionWrapper &wrapper = VideoCollectionWrapper::instance();

        if (name.compare(DOCML_NAME_VC_VIDEOLISTWIDGET) == 0)

        {

            VideoListWidget *videoList = qobject_cast<VideoListWidget*>(object);

            if (videoList)

            {

                VideoSortFilterProxyModel *model =

                    wrapper.getModel(VideoCollectionCommon::EModelTypeAllVideos);

                if(model)

                {

                	VideoCollectionViewUtils::sortModel(model, true, VideoCollectionCommon::ELevelVideos);

                    // init widget

                }

            }

        }

        else if (name.compare(DOCML_NAME_VC_COLLECTIONWIDGET) == 0)

        {

            VideoSortFilterProxyModel *model = wrapper.getModel(

            		VideoCollectionCommon::EModelTypeCollections);

            if (model)

            {

                VideoCollectionViewUtils::sortModel(model, true, VideoCollectionCommon::ELevelCategory);

                // initialize video collection widget

                VideoListWidget *videoList =

                    qobject_cast<VideoListWidget*>(object);

                if (videoList)

                {

                    // init widget

                }

            }

        }

        else if (name.compare(DOCML_NAME_VC_COLLECTIONCONTENTWIDGET) == 0)

        {

            VideoSortFilterProxyModel *model = wrapper.getModel(

            		VideoCollectionCommon::EModelTypeCollectionContent);

            if (model)

            {

                // collection content contains always a list of videos so we use 

                // ELevelVideos as target for sorting

                VideoCollectionViewUtils::sortModel(model, false, VideoCollectionCommon::ELevelVideos);

                VideoListWidget *videoList = qobject_cast<VideoListWidget*>(object);

                if (videoList)

                {

                    // init widget

                    // cannot set level at this point yet: it can be either default or user defined collection

                }

            }

        }

        else if (name.compare(DOCML_NAME_DIALOG) == 0)

        {

            // by default, initialize the selection dialog to delete mode

            VideoListSelectionDialog *dialog =

                qobject_cast<VideoListSelectionDialog*>(object);

            if (dialog)

            {

                dialog->setupContent(VideoListSelectionDialog::EDeleteVideos,

                    TMPXItemId::InvalidId());

            }

        }

        else if (name.compare(DOCML_NAME_SORT_MENU) == 0)

        {

            HbMenu *menu = qobject_cast<HbMenu*>(object);

            if (menu)

            {

                // create sort by menu action

                mMenuActions[EActionSortBy] = menu->menuAction();

                // ensure that all the actions related to sort menu are loaded

                // when sort menu is loaded

                findObject<HbAction>(DOCML_NAME_SORT_BY_DATE);

                findObject<HbAction>(DOCML_NAME_SORT_BY_NAME);

                findObject<HbAction>(DOCML_NAME_SORT_BY_NUMBER_OF_ITEMS);

                findObject<HbAction>(DOCML_NAME_SORT_BY_SIZE);

                // add sub menu actions

                if (!mSortGroup)

                {

                    mSortGroup = new QActionGroup(menu);

                    mSortGroup->addAction(mMenuActions[EActionSortByDate]);

                    mSortGroup->addAction(mMenuActions[EActionSortByName]);

                    mSortGroup->addAction(mMenuActions[EACtionSortByItemCount]);

                    mSortGroup->addAction(mMenuActions[EActionSortBySize]);

                    // set all sub menu items checkable

                    foreach (QAction *action, menu->actions()) 

                    {

                        action->setCheckable(true);

                    }

                }

            }

        }

        else if (name.compare(DOCML_NAME_VC_VIDEOHINTWIDGET) == 0)

        {

            VideoHintWidget *hintWidget = qobject_cast<VideoHintWidget*>(object);

            if (hintWidget)

            {

                hintWidget->initialize();

            }

        }

        else if (name.compare(DOCML_NAME_OPTIONS_MENU) == 0)

        {

            // ensure that all the actions related to options menu are loaded

            // when options menu is loaded

            // when applicaton has been launched as a service,

            // do not load components which are not required

            if(!mIsService)

            {

                findObject<HbAction>(DOCML_NAME_ADD_TO_COLLECTION);

                findObject<HbAction>(DOCML_NAME_CREATE_COLLECTION);

                findObject<HbAction>(DOCML_NAME_DELETE_MULTIPLE);

            }

        }

        else if (name.compare(DOCML_NAME_ADD_TO_COLLECTION) == 0)

        {

            HbAction *action = qobject_cast<HbAction*>(object);

            if (action)

            {

                mMenuActions[EActionAddToCollection] = action;