/*

* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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 VCXNSCONTENTSEARCHHANDLER_H

#define VCXNSCONTENTSEARCHHANDLER_H

// INCLUDES

#include <e32base.h>

#include "vcxnscontentsearchif.h"

// FORWARD DECLARATIONS

class CVcxNsUiEngine;

class MVcxNsContentSearchObserver;

// CLASS DECLARATION

/**

* Class CVcxNsCategoryProvider handles application categorys.

*

* @lib vcxnsuiengine.lib

*/

class CVcxNsContentSearchHandler: public CBase,

                                  public MVcxNsContentSearchIf   

    {

public:

    /**

     * Constructor

     * @param aUiEngine Ui engine

     */

    static CVcxNsContentSearchHandler* NewL( CVcxNsUiEngine& aUiEngine );

    virtual ~CVcxNsContentSearchHandler();

public: 

    /**

     * Start new search. This is only for UI engines internal use. 

     * When search category is opened and there's no contents,

     * we can start new search. 

     */

    void StartNewSearchL( );

public: //From MVcxNsContentSearchIf

    /**

     * RegisterObserver.

     * @param aObserver Observer

     */

    void RegisterObserver( MVcxNsContentSearchObserver* aObserver );

    /**

     * DeRegisterObserver.

     * @param aObserver Observer

     */

    void DeRegisterObserver( MVcxNsContentSearchObserver* aObserver );

    /**

     * Starts the search with given keyword.

     * @param aSearchString Search string

     */

    void SearchL( const TDesC& aSearchString );

    /**

     * Cancel ongoing search.

     */

    void CancelSearchL( );

    /**

     * Handle search related status messages.

     * @param aStatus Search status.

     * @param aInfo Information parameter.

     */

    void HandleSearchMsgL( TInt aStatus, TInt aInfo );

    /**

     * Handle search cancelled by user.

     */

    void SearchCancelled();

private:

    /**

     * Default constructor

     * @param aUiEngine Ui engine

     */

    CVcxNsContentSearchHandler( CVcxNsUiEngine& aUiEngine );

    /**

     * Update category video count.

     */

    void UpdateCategoryVideoCountL();

    /**

     * Shows or hides the popup about thumbnail update.

     * @param aVisible Show or hide pop-up.

     */

    void ShowInfoPopupL( TBool aVisible );

// Data

    /**

     * Array of search observers. Not Own.

     */

    RPointerArray<MVcxNsContentSearchObserver> iSearchObservers;

    /**

     * UI engine.

     */

    CVcxNsUiEngine& iUiEngine;

    /**

     * Total count of thumbnails in the search result.

     */

    TInt iThumbnailCount;

    /**

     * Count of thumbnails that has already been downloaded.

     */

    TInt iThumbnailsDownloaded;

    };

#endif // VCXNSCONTENTSEARCHHANDLER_H