--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpxplugins/serviceplugins/collectionplugins/inc/mpxdbactivetask.h	Thu Dec 17 08:45:05 2009 +0200
@@ -0,0 +1,152 @@
+/*
+* Copyright (c) 2007 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:  Active object to split up long running tasks
+*
+*/
+
+
+#ifndef C_MPXDBACTIVETASK_H
+#define C_MPXDBACTIVETASK_H
+
+#include <mpxcommand.h>
+#include <mpxmessage2.h>
+
+/**
+* Observer class to the active task object
+*/
+NONSHARABLE_CLASS( MMPXDbActiveTaskObserver )
+    {
+public:
+    /**
+    * Handle the execution of a step
+    * @return ETrue if complete, EFalse if more to do
+    */
+    virtual TBool HandleStepL() = 0;
+    /**
+    * Handle the completion of the operation
+    */
+    virtual void HandleOperationCompleted( TInt aErr ) = 0;
+    };
+
+/**
+ *  Active object to execute tasks in multiple steps
+ *  Each collection plugin has its own task queue, which serializes all
+ *  operations for a plugin
+ *  @lib mpxdbplugin
+ *  @since S60
+ */
+NONSHARABLE_CLASS( CMPXDbActiveTask ) : public CActive
+    {
+public:
+    /**
+    * Two-phased constructor
+    */
+    IMPORT_C static CMPXDbActiveTask* NewL( MMPXDbActiveTaskObserver& aObserver );
+
+    /**
+    * Destructor
+    */
+    IMPORT_C virtual ~CMPXDbActiveTask();
+
+public:    // Accessor functions
+
+    /**
+    * Start the async command task
+    * @param aTask task id
+    * @param aCommand command for the operation
+    */
+    IMPORT_C void StartL( TMPXCommandId aTask, const CMPXCommand& aCommand );
+
+    /**
+    * Get the current step for the current task
+    * @return the current step
+    */
+    IMPORT_C TInt GetStep();
+
+    /*
+    * Get the command for the current task
+    * @return the current task
+    */
+    IMPORT_C TMPXCommandId GetTask();
+
+    /**
+    * Get the command for the current task
+    * @return the current command
+    */
+    IMPORT_C CMPXCommand& GetCommand();
+
+    /**
+    * Get the current change message array
+    * @return get the change messages
+    */
+    IMPORT_C CMPXMessageArray& GetChangeMessages();
+
+    enum TChangeVisibility
+        {
+        ENotVisibile,
+        ESingleVisible,
+        EAllVisible
+        };
+    /**
+    * Set if the change is visible
+    * @param aChange change state
+    */
+    IMPORT_C void SetVisibleChange( TChangeVisibility aChange );
+
+    /**
+    * Return if the change is visible
+    * @return visible change state
+    */
+    IMPORT_C TChangeVisibility GetVisibleChange();
+
+protected: // From base class
+
+    /**
+    * From CActive
+    */
+    IMPORT_C void RunL();
+
+    /**
+    * From CActive
+    */
+    IMPORT_C void DoCancel();
+
+    /**
+    * From CActive
+    */
+    IMPORT_C TInt RunError( TInt aError );
+
+private:
+
+    /**
+    * Default Constructor
+    */
+    CMPXDbActiveTask(MMPXDbActiveTaskObserver& aObserver);
+
+    /**
+    * 2nd-phase Constructor
+    */
+    void ConstructL();
+
+private: // data
+
+    CMPXCommand*  iCurCommand;  // Current Command
+    TMPXCommandId iCurTask;  // The task command id
+    TInt          iCurStep;  // The n-th stop in the operation
+    TChangeVisibility iCurVisibleChange; // Is the operation UI visible
+    CMPXMessageArray* iChangeMessages; // Change message array
+    MMPXDbActiveTaskObserver& iObserver; // Observer
+    };
+
+#endif // C_MPXDBACTIVETASK_H