1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/security/authorisation/userpromptservice/inc_private/pluginmanager.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,108 @@
     1.4 +/*
     1.5 +* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of the License "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description: 
    1.18 +*
    1.19 +*/
    1.20 +
    1.21 +
    1.22 +/**
    1.23 + @file
    1.24 + @internalComponent
    1.25 + @released 
    1.26 +*/
    1.27 +
    1.28 +#ifndef PLUGINMANAGER_H
    1.29 +#define PLUGINMANAGER_H
    1.30 +
    1.31 +namespace UserPromptService
    1.32 +	{	
    1.33 +	class CPolicyEvaluator;
    1.34 +	class CDialogCreator;
    1.35 +	class CPolicyEvaluatorPlugin;
    1.36 +	class CDialogCreatorPlugin;
    1.37 +	class CPluginManager;
    1.38 +	
    1.39 +	/**
    1.40 +	Container class for a plug-in that notifies a manager object when 
    1.41 +	it is destroyed.
    1.42 +	*/
    1.43 +	template <class T> 
    1.44 +		class CPlugin : public CBase
    1.45 +			{
    1.46 +		public:
    1.47 +			CPlugin(CPluginManager* aManager, T* aImp);
    1.48 +			T& Imp();
    1.49 +			~CPlugin();
    1.50 +		private:
    1.51 +			CPluginManager* iManager;	///< The plug-in manager that tracks active plug-ins.
    1.52 +			T* iImp;					///< The policy evaluator or dialog creator owned by this object.
    1.53 +			};
    1.54 +			
    1.55 +	/**
    1.56 +	Plug-in manager that tracks the number of plug-ins enabling REComSession::FinalClose()
    1.57 +	to be deferred (after calling Unload) once all the plug-ins have been unloaded.
    1.58 +	
    1.59 +	N.B. REComSession::FinalClose CANNOT be called from within an ECOM plug-in.	
    1.60 +	*/
    1.61 +	NONSHARABLE_CLASS(CPluginManager) : public CBase
    1.62 +		{
    1.63 +		template <class T> friend class CPlugin;
    1.64 +	public:
    1.65 +		IMPORT_C static CPluginManager* NewL();		
    1.66 +		IMPORT_C CPlugin<CPolicyEvaluator>* CreateEvaluatorL(const TUid& aEvaluatorId);
    1.67 +		IMPORT_C CPlugin<CDialogCreator>* CreateDialogCreatorL(const TUid& aDialogCreatorId);
    1.68 +		IMPORT_C void Unload();	
    1.69 +				
    1.70 +		~CPluginManager();
    1.71 +	public:
    1.72 +		// For testing. Do not modify directly
    1.73 +		TInt iPluginCount;		///< The number of active CPlugin objects. (do not modify)
    1.74 +	private:
    1.75 +		CPluginManager();			
    1.76 +		IMPORT_C void ReleasePlugin();
    1.77 +
    1.78 +		TBool iUnload;			///< Indicates that a deferred call to REComSession::FinalClose is required		
    1.79 +		};	
    1.80 +				
    1.81 +	template <class T>
    1.82 +	inline CPlugin<T>::CPlugin(CPluginManager* aManager, T* aImp) : iManager(aManager), iImp(aImp)	
    1.83 +	/**
    1.84 +	Constructor
    1.85 +	@param aManager	The plug-in manager that tracks the number of plug-ins in existance.
    1.86 +	@param aImp		The ECOM implementation that this class managers.
    1.87 +	*/
    1.88 +		{
    1.89 +		}
    1.90 +
    1.91 +	template <class T>
    1.92 +	inline T& CPlugin<T>::Imp() 
    1.93 +	/**
    1.94 +	Gets a reference to the plug-in implementation
    1.95 +	@return The plug-in implementation.
    1.96 +	*/
    1.97 +		{
    1.98 +		return *iImp;
    1.99 +		}
   1.100 +	
   1.101 +	template <class T>
   1.102 +	inline CPlugin<T>::~CPlugin() 
   1.103 +	/**
   1.104 +	Destructor
   1.105 +	*/
   1.106 +		{		
   1.107 +		delete iImp;
   1.108 +		iManager->ReleasePlugin();
   1.109 +		}		
   1.110 +	}
   1.111 +#endif // PLUGINMANAGER_H