author | Pat Downey <patd@symbian.org> |
Wed, 01 Sep 2010 12:35:00 +0100 | |
branch | RCL_3 |
changeset 16 | 012cc2ee6408 |
parent 15 | f92a4f87e424 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2007-2009 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: |
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* |
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*/ |
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/** |
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@file |
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@publishedPartner |
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@released |
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*/ |
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#ifndef FDCPLUGIN_H |
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#define FDCPLUGIN_H |
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#include <e32base.h> |
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class MFdcPluginObserver; |
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/** |
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Base class for FDC plugins. |
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*/ |
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class CFdcPlugin : public CBase |
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{ |
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// So we can make most of this class private- validly callable only by |
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// CFdcProxy. |
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friend class CFdcProxy; |
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private: // used by FDF to create and destroy FDC instances |
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/** |
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Constructor. |
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@param aImplementationUid UID of implementation to create. |
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@param aObserver Handle back onto the FDF for the FDC to use. |
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@return Ownership of a new FDC plugin. |
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*/ |
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IMPORT_C static CFdcPlugin* NewL(TUid aImplementationUid, MFdcPluginObserver& aObserver); |
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/** |
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Called by FDF to get a pointer to an object which implements the |
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FDF API with UID aUid. This is a mechanism for allowing future change |
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to the FDF API without breaking BC in existing (non-updated) FDF |
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plugins. |
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*/ |
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virtual TAny* GetInterface(TUid aUid) = 0; |
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protected: // called by concrete FDF plugins |
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/** |
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Constructor |
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*/ |
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IMPORT_C CFdcPlugin(MFdcPluginObserver& aObserver); |
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/** Destructor. */ |
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IMPORT_C ~CFdcPlugin(); |
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/** |
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Accessor for the interface to the FDF. |
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@return Interface to the FDF. |
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*/ |
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IMPORT_C MFdcPluginObserver& Observer(); |
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/** |
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From CBase. |
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*/ |
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IMPORT_C TInt Extension_(TUint aExtensionId, TAny*& a0, TAny* a1); |
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private: // owned |
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/** |
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UID set by ECOM when the instance is created. Used when the instance is |
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destroyed. |
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*/ |
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TUid iInstanceId; |
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/** |
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Interface for calls up to the FDF. |
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*/ |
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MFdcPluginObserver& iObserver; |
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/** |
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Pad for BC-friendly future change. |
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*/ |
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TAny* iPad; |
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}; |
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#endif // FDCPLUGIN_H |