author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 26 Jan 2010 12:06:03 +0200 | |
changeset 4 | 32704c33136d |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: Observer interface definition for install operations |
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* |
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*/ |
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#ifndef M_NCD_INSTALL_OPERATION_OBSERVER_H |
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#define M_NCD_INSTALL_OPERATION_OBSERVER_H |
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#include <e32cmn.h> |
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class MNcdInstallOperation; |
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class TNcdProgress; |
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class MNcdQuery; |
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/** |
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* Observer interface for install operations |
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* |
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* Install operation users should implement this interface to be able to |
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* receive callbacks. |
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* |
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* |
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* @see MNcdInstallOperation |
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*/ |
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class MNcdInstallOperationObserver |
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{ |
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public: |
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/** |
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* Called when install has progressed. |
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* |
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* @note This will be called only once per an installed file. |
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* The reason for this is that the install process is handled outside of |
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* Catalogs Engine in the platform installer. |
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* |
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* |
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* @param aOperation The operation that sent the event. |
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* @param aProgress Progress of the operation. |
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*/ |
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virtual void InstallProgress( MNcdInstallOperation& aOperation, |
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TNcdProgress aProgress ) = 0; |
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/** |
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* Called when a query has been received for an operation. |
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* |
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* @note Querys need to be completed with MNcdOperation::CompleteQueryL() |
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* to continue the operation! Alternatively, the operation must be |
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* cancelled. |
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* |
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* |
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* @see MNcdOperation |
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* @see MNcdQuery |
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* @param aOperation Uncounted reference to the operation that sent the event. |
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* @param aQuery Pointer to the query that must be completed. Counted, Release() |
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* must be called after use. |
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* @see MNcdOperation::CompleteQueryL() |
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*/ |
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virtual void QueryReceived( MNcdInstallOperation& aOperation, |
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MNcdQuery* aQuery ) = 0; |
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/** |
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* Called when an operation has been completed. |
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* |
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* |
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* @param aOperation The operation that sent the event. |
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* @param aError Error code for operation completion. |
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* KErrNone for successful completion, KErrAbort if the user |
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* cancelled the operation, otherwise a system |
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* wide error code. |
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*/ |
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virtual void OperationComplete( MNcdInstallOperation& aOperation, |
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TInt aError ) = 0; |
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protected: |
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/** |
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* Destructor |
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* |
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* An empty virtual destructor is implemented to prevent deletion |
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* of a class object through this interface. |
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* Observer should not be deleted by the one that is observed. |
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*/ |
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virtual ~MNcdInstallOperationObserver() { } |
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}; |
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#endif // M_NCD_INSTALL_OPERATION_OBSERVER_H |