/*

* 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: 

*

*/

#ifndef HELPDATAPROVIDER_H

#define HELPDATAPROVIDER_H

class HelpModel;

class HelpItems;

class HelpProxyModel;

class QStandardItemModel;

class HelpStandardItem;

class HelpDataProvider

{	

private:

    HelpDataProvider();

    ~HelpDataProvider();

public:

    static HelpDataProvider* instance();

    static void destroyInstance();

public:

	void createHelpCategory();

	QAbstractItemModel* getCategoryData();

	QAbstractItemModel* getSearchData(const QString& key=QString());

	void setHelpContentUrl(const QString& uid, const QString& href);

	void getHelpContentData(QString& content, QString& url);

private:

	//construct 1st category

	void constructCategory();

	//construct help category in rom

	void constructBuiltInCategory(const QString& path, const QStringList& uidList, const QStringList& titleList);

	//construct help category for 3rd party application

	void constructAppCategory(const QString& path, QStringList& uidList);

	void constructBuiltInCategoryItem(const QString& uid, const QString& title);

	//construct 2nd category

	void constructCategory2(HelpStandardItem* itemParent);

	void constructCategory2Item(HelpStandardItem* itemParent);

	//construct keyword list

	void constructKeywordModel(const QString& title, const QString& uid, const QString& href);

	//parse xml

	void parseCategoryIndexXml(const QString& path, QStringList& uidList, QStringList& titleList);

	void parseCategory2IndexXml(const QString& path, QStringList& hrefList, QStringList& titleList);

	void parseBuiltInMetaxml(const QString& path, int& priority);

	void parseAppMetaxml(const QString& path, QString& title);	

private:

	QStandardItemModel*		mHelpModel;         //category tree model

	QStandardItemModel*		mKeywordModel;      //keyword list model

	HelpProxyModel*			mSearhResultModel;  //search result proxy model of keyword model	

	HelpStandardItem*		mAppItem;

	QString					mHelpContentRoot;

	QString					mLastSrhKey;

	QStringList				mUpdateUidList;

};

#endif //HELPDATAPROVIDER_H