--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/simpleengine/siputils/inc/simplesipconncallback.h	Tue Feb 02 01:05:17 2010 +0200
@@ -0,0 +1,142 @@
+/*
+* Copyright (c) 2006 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:    Callback methods used by SIP stack callback implementations
+*
+*/
+
+
+
+
+#ifndef MSimpleSipConnCallback_H
+#define MSimpleSipConnCallback_H
+
+//  INCLUDES
+#include <e32base.h>
+#include "simplecommon.h"
+
+// FORWARD DECLARATIONS
+
+class CSIPConnection;
+class CSIPClientTransaction;
+class CSIPDialogAssocBase;
+class CSIPMessageElements;
+class CSimpleRequest;
+class CSIPDialog;
+
+/**
+ * Callback methods used by SIP stack callback implementations.
+ *
+ * @lib simplesiputils
+ * @since S60 3.2
+ */
+class MSimpleSipConnCallback
+    {
+
+public:
+
+    /**
+     * Connection state is changed
+     *
+     * @since S60 3.2     
+     * @param aState new SIP state
+     */
+    virtual void ConnectionStateChange( 
+        TSimpleSipState aState, TInt aSipError) = 0;
+    
+    /**
+     * Connection method has changed (Roaming). 
+     * 
+     * @since S60 3.2.3
+     */
+    virtual void ConnectionChanged() = 0;
+
+    /**
+     * Time to refresh a request
+     *
+     * @since S60 3.2       
+     * @param aReq corresponding engine's request
+     */
+    virtual void StartToRefreshL( CSimpleRequest& aReq ) = 0;
+
+    /**
+     * Time to check expiration
+     * @param aReq corresponding engine's request     
+     */
+    virtual void StartToCheckExpiryL( CSimpleRequest& aReq ) = 0;
+
+    /**
+     * Search the corresponding client request
+     *
+     * @since S60 3.2       
+     * @param aTrans SIP transaction
+     * @return request or NULL if request not found
+     */
+    virtual CSimpleRequest* GetRequest( CSIPClientTransaction& aTrans ) = 0;
+
+    /**
+     * Search the corresponding client request
+     *
+     * @since S60 3.2       
+     * @param aDialog SIP dialog
+     * @return initial SUBSCRIBE request or NULL if request not found
+     */
+    virtual CSimpleRequest* GetdDialogRequest( const CSIPDialog& aDialog ) = 0;
+
+    /**
+     * Handles publish response.
+     * This reads SIP-ETAG and resets refresh timer.
+     *
+     * @since S60 3.2       
+     * @param aMesElems SIP message elements
+     * @param aReq corresponding engine's request
+     */
+    virtual void HandlePublishRespL( const CSIPMessageElements& aMesElems, CSimpleRequest* aReq ) = 0;
+
+    /**
+     * Handles server request in a dialog
+     * This resets refresh timer when needed.
+     *
+     * @since S60 3.2       
+     * @param aMesElems SIP message elements
+     * @param aReq corresponding engine's request
+     * @param aMethod SIP method
+     */
+    virtual void HandleDialogRequestL(
+        const CSIPMessageElements& aMesElems,
+        CSimpleRequest& aReq,
+        const TDesC8& aMethod  ) = 0;
+
+    /**
+     * Retry publication, with a body when pending data exists.
+     *
+     * @since S60 3.2       
+     * @param aReq corresponding engine's request
+     * @return error code
+     */
+    virtual TInt DoSendPendingPublish( CSimpleRequest& aReq ) = 0;
+
+    /**
+     * Handle received message
+     *
+     * @since S60 5.0
+     * @param aFrom message received from
+     * @param aContent message content
+     * @return error code
+     */
+    virtual TInt HandleReceivedMessage( const TDesC8& aFrom,
+        const TDesC8& aContent ) = 0;
+
+    };
+
+#endif