/*

* 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:  MRUI field builder plugin definition

*

*/

#ifndef CESMRFIELDBUILDERPLUGIN_H

#define CESMRFIELDBUILDERPLUGIN_H

#include <e32base.h>

#include "cesmrfieldbuilderinterface.h"

/**

 *  This class implements most of the field builder composite.

 *  Everything but attendee field is built here

 */

class CESMRFieldBuilderPlugin : public CESMRFieldBuilderInterface,

                                public MESMRFieldBuilder

    {

public: // construction & destruction

    /**

     * Creates new CESMRFieldBuilderPlugin object. Ownership

     * is transferred to caller.

     * @return Pointer to created object,

     */

    static CESMRFieldBuilderPlugin* NewL();

    /**

     * C++ Destructor.

     */

    virtual ~CESMRFieldBuilderPlugin();

protected: // from CESMRFieldBuilderInterface

    virtual MESMRFieldBuilder* FieldBuilderL();

    virtual TAny* ExtensionL( TUid aExtensionUid );

protected: // from MESMRFieldBuilder

    /**

     * Creates editor field.

     *

     * @param aValidator - time validator

     * @param aField - field to be created

     */

    CESMRField* CreateEditorFieldL(

            MESMRFieldValidator* aValidator,

            TESMREntryField aField );

    /**

     * Creates viewer field.

     *

     * @param aResponseObserver - observer to be called when e.g.

     *                            answer is ready to be sent.

     * @param aField - field to be created

     * @param aResponseReady - NOT IN USE

     */

    CESMRField* CreateViewerFieldL(

            MESMRResponseObserver* aResponseObserver,

            TESMREntryField aField,

            TBool aResponseReady );

private: // Implementation

    CESMRFieldBuilderPlugin();

    /**

     * loads fieldbuilder ecom plugin composite

     * delayed until the first time the extension is needed

     */

    void LoadExtensionL();

    MESMRFieldBuilder* FieldBuilderExtensionL();

private:

    //ecom field builder interface

    CESMRFieldBuilderInterface* iExtension;

    //composite class of field builder interface

    MESMRFieldBuilder* iFieldExtension;

    };

#endif // CESMRFIELDBUILDERPLUGIN_H

// EOF