/*

 * 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:  Declaration of the Ui Loader .

 *

 */

#ifndef SEARCH_CONTROLLER_H

#define SEARCH_CONTROLLER_H

#include "search_global.h"

#include <qobject.h>

#include <qmutex.h>

class HbDocumentLoader;

class HbView;

class HbListWidget;

class HbSearchPanel;

class TsTaskSettings;

class HbMainWindow;

class HbShrinkingVkbHost;

SEARCH_CLASS( SearchStateProviderTest)

class SearchUiLoader : public QObject

    {

Q_OBJECT

public:

    /**

     * Singleton construtor

     * @since S60 ?S60_version.

     */

    static SearchUiLoader* instance()

        {

        static QMutex mutex;

        if (!m_instance)

            {

            mutex.lock();

            m_instanceCounter++;

            if (!m_instance)

                {

                m_instance = new SearchUiLoader;

                }

            mutex.unlock();

            }

        return m_instance;

        }

    /**

     * Singleton destructor

     * @since S60 ?S60_version.

     */

    static void deleteinstance()

        {

        m_instanceCounter--;

        if ((m_instanceCounter <= 0) && (m_instance))

            {

            delete m_instance;

            m_instance = 0;

            }

        }

public slots:

    /**

     * Slot to send the application to background fake exit

     * @since S60 ?S60_version.

     */

    void slotsendtobackground();   

public:

    /**

     * Function returns the HbListWidget object 

     *  @param aUid Unique app Id.

     */

    HbView* View()

        {

        return mView;

        }

    /**

     * Function returns the HbListWidget object

     *  @param aUid Unique app Id.

     */

    HbListWidget* ListWidget()

        {

        return mListWidget;

        }

    /**

     * Function returns the HbSearchPanel object

     *  @param aUid Unique app Id.

     */

    HbSearchPanel* SearchPanel()

        {

        return mSearchPanel;

        }

    /**

     * Function to listen the applicaition foreground event

     *  @param aUid Unique app Id.

     */

    bool eventFilter(QObject *, QEvent *);

private:

    /**

     * Constructor.

     * @since S60 ?S60_version.     

     * @param aParent Owner.

     */

    SearchUiLoader();

    /**

     * Destructor.

     * @since S60 ?S60_version.

     */

    ~SearchUiLoader();

private:

    /**

     * static instance to make single instance

     * Own.

     */

    static SearchUiLoader *m_instance;

    /**

     * counter for number for instance

     * Own.

     */

    static int m_instanceCounter;

    /**

     * Doucument loader API

     * Own.

     */

    HbDocumentLoader* mDocumentLoader;

    /**

     * Application view 

     * Own.

     */

    HbView* mView;

    /**

     * Listwidget to show the search results

     * Own.

     */

    HbListWidget* mListWidget;

    /**

     * searchpanel for query

     * Own.

     */

    HbSearchPanel* mSearchPanel;

    /**

     * to hide for task switcher

     * Own.

     */

    TsTaskSettings* mClient;

    /**

     * application main window

     */

    HbMainWindow* mMainWindow;

    /**

     * vkbhost to resize the result screen 

     * Own.

     */

    HbShrinkingVkbHost* mVirtualKeyboard;

private:

SEARCH_FRIEND_CLASS    ( SearchStateProviderTest)

    };

#endif //SEARCH_CONTROLLER_H