// Copyright (c) 1999-2009 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 "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members

 // which accompanies this distribution, and is available

 // at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".

 //

 // Initial Contributors:

 // Nokia Corporation - initial contribution.

 //

 // Contributors:

 //

 // Description:

 //

 #if !defined(__IMAPCONNECTIONOBSERVER_H__)

 #define __IMAPCONNECTIONOBSERVER_H__

 /** IMAP4 connection observer events.

 @see MMsvImapConnectionObserver 

 @publishedAll

 @released

 */

 enum TImapConnectionEvent

 	{

 	/** Connecting to server. */

 	EConnectingToServer,

 	/** Synchronising folder list. */

 	ESynchronisingFolderList,

 	/** Synchronising inbox. */

 	ESynchronisingInbox,

 	/** Synchronising folders. */

 	ESynchronisingFolders,

 	/** Synchronisation complete. */

 	ESynchronisationComplete,

 	/** Disconnecting. */

 	EDisconnecting,

 	/** Connection completed. */

 	EConnectionCompleted

 	};

 //	Mix-in class to allow observation of the stages of an IMAP operation

 //

 class MMsvImapConnectionObserver

 /** Abstract base class used for IMAP4 connection observation. 

 A derived class to handle IMAP4 connection events should override the HandleImapConnectionEvent() 

 member function. 

 Objects that implement this interface are passed as a packaged parameter 

 to CImap4ClientMtm::InvokeAsyncFunctionL() when a connection command is issued.

 @publishedAll

 @released

 @see TImap4Cmds

 */

 	{

 public:

 	/** Called when a connection event occurs.

 	@param aConnectionState Connection event */

 	virtual void HandleImapConnectionEvent(TImapConnectionEvent aConnectionState)=0;

 	};

 #endif