/*

* Copyright (c) 2004 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:  Query container implementation.

*

*/

#ifndef __CCNUIQUERYCONTAINER_H

#define __CCNUIQUERYCONTAINER_H

//  INCLUDES

#include <E32Base.h>

#include <AknQueryDialog.h>

#include "MCnUiUiFacade.h"

// FORWARD DECLARATIONS

class MCnUiConnQueryObserver;

/**

 * Supported query types.

 *

 * @since 2.1

 */

enum TNonBlockingQueryType

    {

    ENBConfirmationQuery = 1,

    ENBConfirmedErrorNote

    };

// CLASS DECLARATION

/**

 * Query container implementation.

 *

 * @since 2.1

 */

NONSHARABLE_CLASS( CCnUiQueryContainer ) : public CBase,

        public MCnUiConnQuery

    {

    /**

     * Helper derivation from CAknDialog.

     * Offers non waiting dialog features.

     * Reports events to observer and self pointer

     * NULLing. (Self pointer NULLing needed to ease

     * MCnUiConnQuery client usage.)

     *

     * @since 2.1

     */

    NONSHARABLE_CLASS( CCnUiNonWaitingQueryDialog ) : public CAknQueryDialog

        {

public:  // Two-phased constructors and destructor

        /**

         * Two-phased constructor.

         *

         * @since 2.1

         * @param aType The query type.

         * @param aLabelText The label text to show in UI.

         * @param aObserver The observer to notify from dialog selections.

         * @param aSelfPtr Self pointer. Nulled when dialog is destroyed.

         */

        static CCnUiNonWaitingQueryDialog* NewL( TNonBlockingQueryType aType,

        const TDesC& aLabelText,

        MCnUiConnQueryObserver& aObserver,

        CCnUiNonWaitingQueryDialog** aSelfPtr );

        /**

         * Destructor.

         */

        virtual ~CCnUiNonWaitingQueryDialog();

private:

        /**

         * C++ constructor.

         */

        CCnUiNonWaitingQueryDialog( MCnUiConnQueryObserver& aObserver,

                                    CCnUiNonWaitingQueryDialog** aSelfPtr );

        /**

         * Symbian OS constructor.

         */

        void LaunchQueryLD( TNonBlockingQueryType aType, const TDesC& aLabelText );

private: //From CEikDialog.

        /**

         * From CEikDialog.

         * Overridden to report the selection to observer.

         * @since 2.1

         */

        TBool OkToExitL( TInt aButtonId );

private: // data

        ///<The observer, not owned.

        MCnUiConnQueryObserver&             iObserver;

        ///< Self pointer reference.

        ///< Used to NULL self pointer in deletion. Not owned.

        CCnUiNonWaitingQueryDialog**        iSelfPtr;

        };

public:  // Two-phased constructors and destructor

    /**

     * Two-phased constructor.

     *

     * @since 2.1

     * @param aType query type

     * @param aLabelText The label text to show in UI.

     * @param aObserver The observer to notify.

     */

    static CCnUiQueryContainer* NewL( TNonBlockingQueryType aType,

                                      const TDesC& aLabelText,

                                      MCnUiConnQueryObserver& aObserver );

    /**

     * Destructor.

     */

    virtual ~CCnUiQueryContainer();

private:

    /**

     * C++ constructor.

     */

    CCnUiQueryContainer();

private: // data

    ///<Used query dialog. Owned.

    CCnUiNonWaitingQueryDialog*      iDlg;

    };

#endif      //  __CCNUIQUERYCONTAINER_H

//  End of File