/*

* Copyright (c) 2007-2008 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:  IMAP4 connect operation

*

*/

#include "ipsplgonlineoperation.h"

#include "imapconnectionobserver.h"

class CIpsPlgEventHandler;

// <qmail> KIpsAutoPopulateByteLimit not used

/**

* class CIpsPlgImap4ConnectionOp

* 

*/

NONSHARABLE_CLASS ( CIpsPlgImap4ConnectOp ) :

    public CIpsPlgOnlineOperation,

    // <qmail> public MMsvImapConnectionObserver, not used any more

    // <qmail> public MIpsPlgConnectOpCallback not used any more

    public MFSMailRequestObserver

    {

// <qmail> MIpsPlgConnectOpCallback not used any more

public:

    /**

    * NewL()

    * @param aMsvSession reference to client/server session to MsvServer

    * @param aObserverRequestStatus client's status

    * @param aService service (mailbox) id

    * @param aActivityTimer mailbox specific activity timer

    * @param aFSMailBoxId specifies mailbox

    * @param aFSOperationObserver observer of this operation

    * @param aFSRequestId request identifier of this op (assigned by caller, and used when calling 

    * back aFSOperationObserver

    * @param aEventHandler used for signalling synchronisation statuses

    * @param aDoPlainConnect whether just connect to mailbox, or synch messages also

    * @return CIpsPlgImap4ConnectionOp* self pointer

    */

    // <qmail> priority parameter has been removed

    static CIpsPlgImap4ConnectOp* NewL(

        CMsvSession& aMsvSession,

        TRequestStatus& aObserverRequestStatus,

        TMsvId aService,

        CIpsPlgTimerOperation& aActivityTimer,

        TFSMailMsgId aFSMailBoxId,

        MFSMailRequestObserver* aFSOperationObserver,

        TInt aFSRequestId,

        CIpsPlgEventHandler* aEventHandler,

        TBool aDoPlainConnect=EFalse );

    // <qmail> make destructor virtual

    virtual ~CIpsPlgImap4ConnectOp();

public: // from CIpsPlgBaseOperation

    /**

    * From MsvOperation

    * Gets information on the progress of the operation

    * (see MsvOperation header)

    */

    virtual const TDesC8& ProgressL();

    /**

    * From CIpsPlgBaseOperation

    * For reporting if DoRunL leaves

    */

    virtual const TDesC8& GetErrorProgressL( TInt aError );

    virtual TFSProgress GetFSProgressL() const;

    // <qmail> change ret val type

    /**

     * Returns operation type

     */

    TIpsOpType IpsOpType() const;

    // <qmail> HandleImapConnectionEvent() not used any more

public: // from MFSMailRequestObserver

    void RequestResponseL( TFSProgress aEvent, TInt aRequestId );

// <qmail> Connected() used from baseclass

protected: // From CActive

    void DoRunL();

    void DoCancel();

private:

    enum TImapConnectionState 

        { 

        EStateStartConnect,

        EStateConnectAndSync,

        EStatePopulateAllCompleted,

        EStateCompleted,

        EStateIdle 

        };

    CIpsPlgImap4ConnectOp(

        CMsvSession& aMsvSession,

        TRequestStatus& aObserverRequestStatus,

        TMsvId aService,

        CIpsPlgTimerOperation& aActivityTimer,

        TFSMailMsgId aFSMailBoxId,

        MFSMailRequestObserver* aFSOperationObserver,

        TInt aFSRequestId,

        TBool aDoPlainConnect,

        CIpsPlgEventHandler* aEventHandler );

    void ConstructL();

    /**

    * Handles one internal state 

    */        

    void DoConnectOpL();

    // <qmail> remove void StartL();

    /**

    * Handles one internal state 

    */       

    void DoPopulateAllL();

    // <qmail> removed QueryUserPwdL();

    /**

     * initiates sync state changed event

     */

    void SignalSyncStarted();

    /**

     * initiates sync state changed event

     * @param aError specifies completion status

     */

    void SignalSyncCompleted( TInt aError );

    // <qmail>

    /**

     * 

     * @param aInfo is filled corretcly in this function

     * @param aImap4Settings info is filled partly based on settings

     */

    void ConstructImapPartialFetchInfo(

        TImImap4GetPartialMailInfo& aInfo, 

        const CImImap4Settings& aImap4Settings );

    /**

     * GetImapSettingsLC()

     * constructs imap settings object with this account's settings (based on iService member)

     * @return CImImap4Settings object as a pointer. Object is placed into CleanupStack.

     */

    CImImap4Settings* GetImapSettingsLC();

    /**

     * Updates iSelection member to contain the message entries from inbox folder

     * NOTE: all prior contents of iSelection will be deleted

     * NOTE: takes care of only direct Inbox folder

     */

    void CreateInboxMessagesSelectionL();

    // </qmail>

private: //Data

    // internal state of this operation

    TImapConnectionState                iState;

    TPckgBuf<TImap4CompoundProgress>    iProgressBuf;

    CMsvEntrySelection* 				iSelection;

    // whether caller instantiated this op to do only connect or not

    TBool                               iDoPlainConnect;

    // pointer to event handler in order to signal sync status to client

    CIpsPlgEventHandler*                iEventHandler; // not owned

    // prevents signalling sync started for more than once

    TBool                               iIsSyncStartedSignaled;

    };

#endif // IPSPLGIMAP4CONNECT_H