diff -r 000000000000 -r 72b543305e3a mobilemessaging/mmsui/viewerinc/MmsViewerOperation.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mobilemessaging/mmsui/viewerinc/MmsViewerOperation.h	Thu Dec 17 08:44:11 2009 +0200
@@ -0,0 +1,161 @@
+/*
+* Copyright (c) 2004-2006 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:  
+*       CMmsViewerOperation
+*
+*/
+
+
+
+
+#ifndef __MMSVIEWEROPERATION_H
+#define __MMSVIEWEROPERATION_H
+
+// INCLUDES
+
+#include <e32base.h>
+#include <f32file.h>
+
+#include "UniMmsViewerDocument.h"
+
+// CONSTANTS
+//#define CANCEL_TEST_CODE 1  
+
+// MACROS
+
+// FORWARD DECLARATIONS
+// Cancel test code
+#ifdef CANCEL_TEST_CODE
+class CHighOperation;
+#endif
+
+// DATA TYPES
+
+enum TMmsViewerOperationType
+    {
+    EMmsViewerOperationChangeSlide,
+    EMmsViewerOperationLaunch,
+    EMmsViewerOperationReadReport
+    };
+
+enum TMmsViewerOperationEvent
+	{
+	EMmsViewerOperationComplete,
+    EMmsViewerOperationError,
+    EMmsViewerOperationCancel
+	};
+
+
+// FUNCTION PROTOTYPES
+
+// CLASS DECLARATION
+
+class MMmsViewerOperationObserver
+    {
+    public:
+        virtual void ViewerOperationEvent(
+            TMmsViewerOperationType aOperation,
+            TMmsViewerOperationEvent aEvent,
+            TInt aError ) = 0;
+    };
+
+/**
+* CMmsViewerOperation
+*
+* @lib mmsViewer.app
+* @since 3.0
+*/
+class CMmsViewerOperation : public CActive
+    {
+    public:  // New methods
+
+        /**
+        * Destructor
+        *
+        * @since    3.0
+        */
+        virtual ~CMmsViewerOperation();
+
+    protected:
+
+        /**
+        * Constructor.
+        *
+        * @since    3.0
+        */
+        CMmsViewerOperation(
+            MMmsViewerOperationObserver& aObserver,
+            CMmsViewerDocument& aDocument,
+            RFs& aFs );
+
+        /**
+        * CompleteSelf
+        * Sets active and completes
+        *
+        * @since 3.0
+        */
+        void CompleteSelf( TInt aError );
+
+        /**
+        * SetActiveNoCompleteSelf
+        * Sets active and but does not complete
+        *
+        * @since 3.1
+        */
+        void SetActiveNoCompleteSelf( );
+
+        /**
+        * SetActiveNoCompleteSelf
+        * Completes earlier activated operation
+        *
+        * @since 3.1
+        */
+        void CompleteActiveSelf( TInt aError );
+        /**
+        * IsCompleted
+        * Checks whether active operation is completed
+        *
+        * @since 3.1
+        */
+        TBool IsCompleted( );
+        
+#ifdef CANCEL_TEST_CODE
+        /**
+        * 
+        * Usually active objects runs with priority EPriorityStandard
+        * @param aUseRandomCancel indicates how often Cancel is called. Use value 0...100:
+        * 0: never
+        * 1: with probability of 1%
+        * ...100:  with probability of 100%.
+        * >100: runs with priority EPriorityStandard+1 and Cancels immediately.
+        * if aUseRandomCancel <= 100, active objects runs until it is cancelled
+        */
+        void LaunchCancelTest( TInt aUseRandomCancel = 100);        
+        void CancelCancelTest( );        
+#endif    
+
+    protected: // data
+
+        MMmsViewerOperationObserver&    iObserver;
+        CMmsViewerDocument&             iDocument;
+        RFs&                            iFs;
+        TInt                            iNextState;
+#ifdef CANCEL_TEST_CODE
+        // Cancel test code
+        CHighOperation*                 iHighOp;
+#endif
+
+    };
+
+#endif // __MMSVIEWEROPERATION_H