author | William Roberts <williamr@symbian.org> |
Tue, 16 Mar 2010 16:12:26 +0000 | |
branch | Symbian2 |
changeset 2 | 2fe1408b6811 |
parent 0 | 061f57f2323e |
child 4 | 837f303aceeb |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008 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 "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.symbianfoundation.org/legal/licencesv10.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: Interface for channel listener |
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* |
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*/ |
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#ifndef SENSRVCHANNELLISTENER_H |
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#define SENSRVCHANNELLISTENER_H |
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#include <e32base.h> |
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#include <sensrvchannelfinder.h> |
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#include <sensrvtypes.h> |
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#include <sensrvchannelinfo.h> |
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/** |
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* Channel listener callback interface to indicate when channels have been added or removed. |
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* |
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* This class is for use with the CSensrvChannelFinder::SetChannelListenerL() method. Clients wishing |
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* to find channels must inherit from this class and provide a reference to an instance of it in |
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* CSensrvChannelFinder::SetChannelListenerL(). |
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* |
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* @see CSensrvChannelFinder::SetChannelListenerL() |
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* @lib sensrvclient.lib |
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* @since S60 5.0 |
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*/ |
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class MSensrvChannelListener |
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{ |
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public: |
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|
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/** |
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* Callback implemented by a client so that they can be notified when channels are added |
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* or removed from the system when new software is installed or uninstalled. |
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* |
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* Clients providing an implementation for this callback must ensure that the operation does |
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* not leave. If a leave does occur then the behaviour is undefined. |
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* |
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* @since S60 5.0 |
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* @param aDetectedChannel Information for the channel that has been added or removed |
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* @param aChangeType If ESensrvChannelAdded, channel is a newly available channel. |
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* If ESensrvChannelRemoved, channel has been removed and is no longer available. |
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*/ |
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virtual void ChannelChangeDetected( const TSensrvChannelInfo& aDetectedChannel, |
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TSensrvChannelChangeType aChangeType ) = 0; |
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|
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/** |
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* Callback implemented by a client so that they can be notified when channel listening |
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* has failed. If the error is fatal the sensor server session has been terminated and |
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* the channel finder is no longer useable. If the error is minor some notifications have |
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* potentially been lost, however listening is still active. |
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* |
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* Clients providing an implementation for this callback must ensure that the operation does |
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* not leave. If a leave does occur then the behaviour is undefined. |
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* |
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* @since S60 5.0 |
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* @param aChannelFinder Reference to the related channelfinder object |
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* @param aError The error severity |
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*/ |
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virtual void ChannelDetectionError( CSensrvChannelFinder& aChannelFinder, |
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TSensrvErrorSeverity aError ) = 0; |
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/** |
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* Callback to future proof this API so that additional callbacks can be added in the future |
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* without breaking binary compatibility. |
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* |
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* @since S60 5.0 |
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* @param aInterfaceUid Identifier for the interface to be retrieved |
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* @param aInterface A reference to a pointer for the specified interface. Implementation sets |
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* aInterface to a valid pointer if the M-class identified by aInterfaceUid is supported, otherwise |
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* it is set to NULL on exit. |
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* @leave One of the system-wide error codes |
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*/ |
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virtual void GetChannelListenerInterfaceL( TUid aInterfaceUid, TAny*& aInterface ) = 0; |
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}; |
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#endif //SENSRVCHANNELLISTENER_H |
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// End of File |
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