/*

* Copyright (c)  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:  Definition for GUI extension interface

*

*/

#ifndef CESMRFIELDBUILDERINTERFACE

#define CESMRFIELDBUILDERINTERFACE

#include "esmrinternaluid.h"

#include "mesmrfieldvalidator.h"

#include "tesmrentryfield.h"

#include "mesmrresponseobserver.h"

class CESMRField;

/**

 *  MESMRFieldBuilder is the interface of the field builder composite.

 *  All field builder implementations will return only this

 */

class MESMRFieldBuilder

    {

public:

    /**

     * Creates editor field.

     *

     * @param aValidator - time validator

     * @param aField - field to be created

     */

    virtual CESMRField* CreateEditorFieldL(

            MESMRFieldValidator* aValidator,

            TESMREntryField aField ) = 0;

    /**

     * 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

     */

    virtual CESMRField* CreateViewerFieldL(

            MESMRResponseObserver* aResponseObserver,

            TESMREntryField aField,

            TBool aResponseReady ) = 0;

    };

class MESMRBuilderExtension

    {

public: // Destruction

    ~MESMRBuilderExtension() {}

public:

    /**

     * Put additional flags/checks here if needed

     */

    enum EMRCFSMailBoxCapability

        {

        EMRCFSAttendeeStatus = 0,

        EMRCFSResponseDontSend

        };

    /**

     * check if a cfsmailboxflag is set

     */

    virtual TBool CFSMailBoxCapabilityL( EMRCFSMailBoxCapability aCapa ) = 0;

    /**

     * Checks, whenter meeting request can be originated or not.

     * @param aForceResetDefaultMRMailbox Whether or not the default MR 

     * *      mailbox is to be forced to reset.

     * @return ETrue, if MR can be originated, EFalse otherwise.

     */

    virtual TBool MRCanBeOriginateedL( TBool aForceResetDefaultMRMailbox ) = 0;

    };

/**

 *  MESMRFieldBuilder is the interface of the field builder composite.

 *  All field builder implementations will return only this

 */

class CESMRFieldBuilderInterface : public CBase

    {

public:

    /**

     * Create specific implementation

     */

    inline static CESMRFieldBuilderInterface* CreatePluginL( TUid aImplementationUid );

    /**

     * Destructor

     */

    inline virtual ~CESMRFieldBuilderInterface();

    /**

     * return field builder to caller, implemented in all plugins

     */

    virtual MESMRFieldBuilder* FieldBuilderL() = 0;

    /**

     * extends the ecom interface

     */

    virtual TAny* ExtensionL( TUid aExtensionUid ) = 0;

private:

    // The ECom destructor key identifier

    TUid iDestructorIdKey;

    };

// -----------------------------------------------------------------------------

// CESMRFieldBuilderInterface::CreatePluginL

// -----------------------------------------------------------------------------

//

inline CESMRFieldBuilderInterface* CESMRFieldBuilderInterface::CreatePluginL(  TUid aImplementationUid )

    {

    TAny* implementation = REComSession::CreateImplementationL( aImplementationUid,

                                                                _FOFF(CESMRFieldBuilderInterface, iDestructorIdKey) );

    return reinterpret_cast<CESMRFieldBuilderInterface*>(implementation);

    }

// -----------------------------------------------------------------------------

// CESMRFieldBuilderInterface::~CESMRFieldBuilderInterface

// -----------------------------------------------------------------------------

//

inline CESMRFieldBuilderInterface::~CESMRFieldBuilderInterface()

    {

    REComSession::DestroyedImplementation( iDestructorIdKey );

    }

#endif // CESMRFIELDBUILDERINTERFACE