williamr@2: /*
williamr@2: * Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies). 
williamr@2: * All rights reserved.
williamr@2: * This component and the accompanying materials are made available
williamr@4: * under the terms of "Eclipse Public License v1.0"
williamr@2: * which accompanies this distribution, and is available
williamr@4: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
williamr@2: *
williamr@2: * Initial Contributors:
williamr@2: * Nokia Corporation - initial contribution.
williamr@2: *
williamr@2: * Contributors:
williamr@2: *
williamr@2: * Description: 
williamr@2: *
williamr@2: */
williamr@2: 
williamr@2: 
williamr@2: #ifndef MCLFOPERATIONOBSERVER_H
williamr@2: #define MCLFOPERATIONOBSERVER_H
williamr@2: 
williamr@2: //  INCLUDES
williamr@2: #include <e32def.h>
williamr@2: 
williamr@2: // DATA TYPES
williamr@2: /**
williamr@2: * Content Listing Framework list model operation events
williamr@2: */
williamr@2: enum TCLFOperationEvent
williamr@2:     {
williamr@2:     /// Refresh operation is completed
williamr@2:     ECLFRefreshComplete = 0x0,
williamr@2:     /// Model content is obsolated and should be refreshed
williamr@2:     ECLFModelOutdated = 0x1
williamr@2:     };
williamr@2: 
williamr@2: // FORWARD DECLARATIONS
williamr@2: class MCLFOperationObserverExt;
williamr@2: 
williamr@2: // CLASS DECLARATION
williamr@2: 
williamr@2: /**
williamr@2: *  Operation Observer is for observing operation events of the Content Listing
williamr@2: *  Framework. Client application gets notified when asynchronous operations
williamr@2: *  are completed. For example, ECLFRefreshComplete event is received when the
williamr@2: *  asynchronous refresh operation is compeleted.
williamr@2: *
williamr@2: *  @lib ContentListingFramework.lib
williamr@2: *  @since S60 3.1
williamr@2: */
williamr@2: class MCLFOperationObserver
williamr@2:     {
williamr@2:     public: // New functions
williamr@2: 
williamr@2:         /**
williamr@2:         * Abstract method to get list model operation events. This method is
williamr@2:         * called when an event is received.
williamr@2:         * @since S60 3.1
williamr@2:         * @param aOperationEvent Operation event code of the event
williamr@2:         * @param aError System wide error code if the operation did not
williamr@2:         *        succeed.
williamr@2:         */
williamr@2:         virtual void HandleOperationEventL( TCLFOperationEvent aOperationEvent,
williamr@2:                                             TInt aError ) = 0;
williamr@2: 
williamr@2:     protected:
williamr@2: 
williamr@2:         /**
williamr@2:         * Destructor.
williamr@2:         */
williamr@2:         virtual ~MCLFOperationObserver() {}
williamr@2: 
williamr@2:     private: // Extension interface
williamr@2: 
williamr@2:         /**
williamr@2:         * This member is internal and not intended for use.
williamr@2:         */
williamr@2:         virtual MCLFOperationObserverExt* Extension() { return NULL; }
williamr@2: 
williamr@2: 
williamr@2:     };
williamr@2: 
williamr@2: #endif      // MCLFOPERATIONOBSERVER_H
williamr@2: 
williamr@2: // End of File