/*

* Copyright (c) 2010 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: ECom interface for Email Client API

*

*/

#ifndef CEMAILINTERFACEFACTORY_H

#define CEMAILINTERFACEFACTORY_H

#include <e32base.h>

#include <ecom/ecom.h>

#include <memailclientapi.h>

#include <memailcontent.h>

namespace EmailInterface {

/**

 * ECom factory class for Email Client API.

 * @since S60 v5.0

 * 

 */

NONSHARABLE_CLASS( CEmailInterfaceFactory ) : public CBase

{

public:       

    /**

     * Contructor

     * @return factory for creating interface instances.

     */

    inline static CEmailInterfaceFactory* NewL();

    /**

    * destructor

    */

    inline ~CEmailInterfaceFactory();

    /**

    * Returns email interface pointer by id

    * @param aInterfaceId interface id, see emailclientapi.hrh for available ids

    * @return pointer to interface

    * @exception KErrNotFound if unkown interface id is given

    *

    * @code

     #include <emailinterfacefactory.h>

     using namespace EmailInterface;

     CEmailInterfaceFactory* factory = CEmailInterfaceFactory::NewL();

     CleanupStack::PushL( factory );

     MEmailInterface* ifPtr = factory->InterfaceL( KEmailClientApiInterface );

     MEmailClientApi* clientApi = static_cast<MEmailClientApi*>( ifPtr );

     CleanupReleasePushL( *clientApi );

     // <do something with clientApi...>

     CleanupStack::PopAndDestroy( 2 ); // clientApi and factory

     @endcode

    * 

    */

    virtual EmailInterface::MEmailInterface* InterfaceL(  

        const TInt aInterfaceId ) = 0;

private:

        // Unique instance identifier key

        TUid iDtor_ID_Key;

};

/**

 * Cleanup support for pointer arrays with MEmailInterface elements which are 

 * destroyed with Release() method.

 * @since S60 v5.0

   @code

       using namespace EmailInterface;

       RMailboxPtrArray mailboxes; // array of MEmailMailbox pointers

       // note: PushL can take any pointer array of elements with Release()

       // method

       CleanupResetAndRelease<MEmailMailbox>::PushL( mailboxes );

      // <here some code that might leave>

       mailClient->GetMailboxesL( mailboxes );

       // MEmailMailbox::Release() called for each array element and then

       // mailboxes.Reset() is called 

       CleanupStack::PopAndDestroy();  

   @endcode

 */

template<class T>

NONSHARABLE_CLASS( CleanupResetAndRelease )

{

public:

    /**

     * Cleanup for elements containing Release() method  

     */

    inline static void PushL( RPointerArray<T>& aItem );

    /**

     * Releases array elements and resets array.

     */

    inline static void ResetAndRelease( TAny* aPtr );  

};

#include "emailinterfacefactory.inl"

} // namespace EmailInterface

#endif // CEMAILINTERFACEFACTORY_H