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/*
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* Copyright (c) 2005-2006 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 the License "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: CSysInfoService class
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*
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*/
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#ifndef __CSYSINFOSERVICE_H__
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#define __CSYSINFOSERVICE_H__
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// INCLUDES
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#include "sysinfo.h"
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#include "sysrequest.h"
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// FORWORD CLASS DECLARATION
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class CSysData;
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class CDeviceInfo;
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/**
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* @ref ISystemObserver
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* Client Observer interface to handle response from Asynchronous system requests.
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*
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* @param aResponse
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*/
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class ISystemObserver
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{
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public:
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/**
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* HandleResponseL ()
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* Callback function to be implimented by client in order to handle asynchronous
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* response.
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* @param aEntity Entity
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*
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* @param aKey Key
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*
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* @param aOutput client owns output data.
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*
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* @param aTransID TransactionID associated with request.
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*
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* @param aType Asynchronous Response type.
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*
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* @param aError If any error occured in process of generating response.
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*
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*/
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virtual void HandleResponseL(const TDesC& aEntity,const TDesC& aKey,
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CSysData* aOutput, TInt32 aTransID,
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TSysRequest::TRequestType aType,
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TInt aError=KErrNone) = 0;
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};
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/**
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* @ref CSysInfoService is used to read and modify and system information
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*
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* @lib sysinfoservice
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* @since S60 3.2
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* @version $Revision: 1.0 $
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*/
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NONSHARABLE_CLASS(CSysInfoService) : public CBase
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{
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public: // Constructors and destructor
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/**
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* NewL()
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* Two-phased constructor.
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* Create a CSysInfoService object.
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* @return A pointer to the created instance of CSysInfoService.
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*/
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IMPORT_C static CSysInfoService* NewL();
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/**
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* Destructor.
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*/
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~CSysInfoService();
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private:
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/**
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* C++ default constructor.
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*/
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CSysInfoService();
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public:
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/**
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* GetInfoL ()
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* Retrieves specified SA value synchronously.
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* User will provide SA and any input by aRequest argument.
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*
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* @param aEntity Entity of an system attribute.
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*
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* @param aKey Key of an system attribute.
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*
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* @param aOutput Retrived system attribute value.
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*
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* @param aInput Optional input data.
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*
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* @error @p KErrArgument if specified input SystemData is not associated with
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* system attribute.
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* @error @p KErrNotFound
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* if specified system attribute not found.
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* if Specified SA doesn't support this kind of operation
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* i.e request type.
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*/
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IMPORT_C void GetInfoL( const TDesC& aEntity, const TDesC& aKey,
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CSysData*& aOutput, const CSysData* aInput=NULL );
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/**
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* GetInfoL ()
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* Retrieves specified SA value asynchronously.
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* User will provide SA and any input thru aRequest argument.
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*
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* @param aEntity Entity of an system attribute.
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*
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* @param aKey Key of an system attribute.
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*
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* @param aTransID TransactionID for async operation.
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*
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* @param aCallback Observer for handling async response.
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*
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* @param aInput Optional input data.
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*
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* @error @p KErrArgument
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* if specified input SystemData is not associated with
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* system attribute.
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* @error @p KErrNotFound
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* if specified system attribute not found.
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* if Specified SA doesn't support this kind of operation
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* i.e request type.
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* @error @p KErrAlreadyExists
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* if Transaction ID specified already exists.
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*/
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IMPORT_C void GetInfoL( const TDesC& aEntity, const TDesC& aKey,
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TInt32 aTransID, ISystemObserver* aCallback,
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const CSysData* aInput=NULL );
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/**
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* GetNotificationL ()
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* Registers for notifications for a given SA.
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* User will provide SA and any input thru aRequest argument.
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*
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* @param aEntity Entity of an system attribute.
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*
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* @param aKey Key of an system attribute.
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*
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* @param aTransID TransactionID for async operation.
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*
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* @param aCallback Observer for handling async response.
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*
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* @param aInput Optional input data.
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*
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* @error @p KErrArgument
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* if specified input SystemData is not associated with
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* system attribute.
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* @error @p KErrNotFound
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* if specified system attribute not found.
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* if Specified SA doesn't support this kind of operation
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* i.e request type.
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* @error @p KErrAlreadyExists
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* if Transaction ID specified already exists.
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*/
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IMPORT_C void GetNotificationL( const TDesC& aEntity, const TDesC& aKey,
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TInt32 aTransID, ISystemObserver* aCallback,
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const CSysData* aInput=NULL );
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/**
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* SetInfoL()
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* Modifies system attribute value.
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* This API can be used to change system attribute value
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* synchronously/asynchronously, based on attribute specification.
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*
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* @param aEntity Entity of an system attribute.
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*
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* @param aKey Key of an system attribute.
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*
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* @param aInput Input data.
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*
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* @error @p KErrArgument
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* if specified input SystemData is not associated with
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* system attribute.
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* @error @p KErrNotFound
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* if specified system attribute not found.
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* if Specified SA doesn't support this kind of operation
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* i.e request type.
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* @error @p KErrAlreadyExists
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* if Transaction ID specified already exists for async requests.
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*/
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IMPORT_C void SetInfoL( const TDesC& aEntity, const TDesC& aKey,
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const CSysData* aInput );
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/**
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* Cancel()
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* Cancels any outstanding requests and releases resources owned by them.
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*
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*/
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IMPORT_C void Cancel(TInt32 aTransID);
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private:
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/*
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* Modifies General Entity attribute value.
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*/
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void SetGeneralInfoL(const TDesC& aKey, const CSysData* aInput);
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/*
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* Modifies General Entity attribute value.
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*/
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void SetDisplayInfoL(const TDesC& aKey, const CSysData* aInput);
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/*
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* Modifies Connectivity Entity attribute value.
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*/
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void SetConnectivityInfoL(const TDesC& aKey, const CSysData* aInput);
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/*
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* Retrieves Network Entity attribute value.
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*/
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void GetNetworkInfoL(TPtrC aKey,CSysData*& aSysData);
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/*
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* Retrieves Battery Entity attribute value.
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*/
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void GetBatteryInfoL(TPtrC aKey,CSysData*& aSysData);
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/*
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* Retrieves General Entity attribute value.
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*/
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void GetGeneralInfoL(TPtrC aKey,CSysData*& aSysData);
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/*
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* Retrieves Display Entity attribute value.
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*/
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void GetDisplayInfoL(TPtrC aKey,CSysData*& aSysData);
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/*
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* Retrieves available/supported usb modes.
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*/
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void GetAvailableUsbModesL(CSysData*& aSysData);
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/*
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* Retrieves Connectivity Entity attribute value.
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*/
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void GetConnectivittyInfoL(TPtrC aKey,CSysData*& aSysData);
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/*
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* Retrieves Memory Entity attribute value.
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*/
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void GetMemoryInfoL(const TDesC& aKey, const CSysData* aInput,
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CSysData*& aOutput);
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/*
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* Retrieves Feature Entity attribute value.
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*/
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void GetFeatureInfoL(TPtrC aKey,CSysData*& aSysData);
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/*
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* Retrieves Device Entity attribute values.
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*/
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void GetDeviceInfoL(TPtrC aKey,CSysData*& aSysData);
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private: //DATA
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/**
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* status member to identify feature manager initialization state.
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*/
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TBool iFeatureManagerInitialized;
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/**
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* class to read static device properties.
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*/
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CDeviceInfo* iDeviceInfo;
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};
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#endif __CSYSINFOSERVICE_H__
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