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// Copyright (c) 2004-2009 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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// INCLUDE FILES
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//
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#include <e32std.h>
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#include <e32svr.h>
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#include <centralrepository.h>
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#include "cenrepnotifyhandler.h"
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// ============================ MEMBER FUNCTIONS ===============================
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/**
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* Constructor used for single key listening.
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*
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* @param aCallback Reference to a callback instance.
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* @param aSession Reference to an existing repository session.
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* @param aKeyType Type of the key identified by aId parameter.
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* @param aId Id of the key that change notifications are needed for.
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* @capability None
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*/
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CCenRepNotifyHandler::CCenRepNotifyHandler(
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MCenRepNotifyHandlerCallback& aCallback,
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CRepository& aSession,
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TCenRepKeyType aKeyType,
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TUint32 aId)
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: CActive(EPriorityStandard), iSession(aSession),
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iCallback(aCallback), iKeyType(aKeyType), iId(aId), iWholeRepository(EFalse)
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{
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CActiveScheduler::Add(this);
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}
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/**
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* Constructor used for whole repository listening.
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*
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* @param aCallback Reference to a callback instance.
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* @param aSession Reference to an existing repository session.
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* @capability None
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*/
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CCenRepNotifyHandler::CCenRepNotifyHandler(
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MCenRepNotifyHandlerCallback& aCallback,
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CRepository& aSession)
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: CActive(EPriorityStandard), iSession(aSession), iCallback(aCallback),
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iKeyType(EIntKey), iId(0), iWholeRepository(ETrue)
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{
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CActiveScheduler::Add(this);
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}
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/**
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* This is a two-phase constructor method that is used to
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* create a new instance for listening to the changes in a single key.
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*
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* @param aCallback Reference to a callback instance.
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* @param aSession Reference to an existing repository session.
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* Do not close this session until all CCenRepNotifyHandler
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* instances referring to it have been deleted.
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* @param aKeyType Type of the key identified by aId parameter.
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* @param aId Id of the key that change notifications are needed for.
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* @return A pointer to a new instance of the CCenRepNotifyHandler class.
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*
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* @leave KErrArgument if invalid key type is passed as a parameter.
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* @capability None
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*/
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EXPORT_C CCenRepNotifyHandler* CCenRepNotifyHandler::NewL(
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MCenRepNotifyHandlerCallback& aCallback,
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CRepository& aSession,
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TCenRepKeyType aKeyType,
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TUint32 aId)
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{
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CCenRepNotifyHandler* newInstance = NewLC(aCallback, aSession, aKeyType, aId);
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CleanupStack::Pop();
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return newInstance;
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}
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/**
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* This is a two-phase constructor method that is used to create a new
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* instance for listening to the changes in all keys in the repository.
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*
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* Type specific callback methods of MCenRepNotifyHandlerCallback will not
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* be used when notifying about changes in this case,
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* only HandleNotifyGeneric() is used.
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*
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* @param aCallback Reference to a callback instance.
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* @param aSession Reference to an existing repository session.
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* Do not close this session until all CCenRepNotifyHandler
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* instances referring to it have been deleted.
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* @return A pointer to a new instance of the CCenRepNotifyHandler class.
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* @capability None
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*/
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EXPORT_C CCenRepNotifyHandler* CCenRepNotifyHandler::NewL(
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MCenRepNotifyHandlerCallback& aCallback,
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CRepository& aSession)
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{
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CCenRepNotifyHandler* newInstance = NewLC(aCallback, aSession);
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CleanupStack::Pop();
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return newInstance;
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}
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/**
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* This is a two-phase constructor method that is used to create a new
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* instance for listening to the changes in a single key.
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* Leaves the constructed instance to cleanup stack.
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*
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* @param aCallback Reference to a callback instance.
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* @param aSession Reference to an existing repository session.
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* Do not close this session until all CCenRepNotifyHandler
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* instances referring to it have been deleted.
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* @param aKeyType Type of the key identified by aId parameter.
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* @param aId Id of the key that change notifications are needed for.
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* @return A pointer to a new instance of the CCenRepNotifyHandler class.
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*
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* @leave KErrArgument if invalid key type is passed as a parameter.
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* @capability None
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*/
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EXPORT_C CCenRepNotifyHandler* CCenRepNotifyHandler::NewLC(
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MCenRepNotifyHandlerCallback& aCallback,
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CRepository& aSession,
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TCenRepKeyType aKeyType,
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TUint32 aId)
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{
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if ( aKeyType != EIntKey &&
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aKeyType != ERealKey &&
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aKeyType != EStringKey &&
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aKeyType != EBinaryKey )
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{
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User::Leave( KErrArgument );
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}
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CCenRepNotifyHandler* newInstance = new (ELeave) CCenRepNotifyHandler( aCallback, aSession,
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aKeyType, aId);
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CleanupStack::PushL( newInstance );
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return newInstance;
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}
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/**
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* This is a two-phase constructor method that is used to create a new
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* instance for listening to the changes in all keys in the repository.
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* Leaves the constructed instance to cleanup stack.
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*
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* Type specific callback methods of MCenRepNotifyHandlerCallback will
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* not be used when notifying about changes in this case,
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* only HandleNotifyGeneric() is used.
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*
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* @param aCallback Reference to a callback instance.
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* @param aSession Reference to an existing repository session.
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* Do not close this session until all CCenRepNotifyHandler
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* instances referring to it have been deleted.
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* @return A pointer to a new instance of the CCenRepNotifyHandler class.
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* @capability None
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*/
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EXPORT_C CCenRepNotifyHandler* CCenRepNotifyHandler::NewLC(
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MCenRepNotifyHandlerCallback& aCallback,
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CRepository& aSession)
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{
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CCenRepNotifyHandler* newInstance = new (ELeave) CCenRepNotifyHandler(aCallback, aSession);
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CleanupStack::PushL( newInstance );
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return newInstance;
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}
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// Destructor
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EXPORT_C CCenRepNotifyHandler::~CCenRepNotifyHandler()
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{
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Cancel();
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}
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/**
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* When this method is called, the CCenRepNotifyHandler starts
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* listening for notifications. If it is already listening, nothing happens.
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*
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* For single setting handler when there is already an existing notification
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* on the same setting and session,the HandleNotifyError will be trigerred with
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* KErrAlreadyExists error
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* @leave KErrNotFound if setting does not exist
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* KErrPermissionDenied if client does not have the necessary capability
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* plus other system-wide error codes.
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* For whole settings handler, the HandleNotifyError will be trigerred with the
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* error code
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* @capability Dependent Capability required depends on platform security of keyspace.
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*/
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EXPORT_C void CCenRepNotifyHandler::StartListeningL()
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{
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if(IsActive())
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{
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return;
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}
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User::LeaveIfError(OrderNotification());
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SetActive();
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}
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/**
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* When this method is called, the CCenRepNotifyHandler stops
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* listening for notifications. If it is already stopped, nothing happens.
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* @capability None
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*/
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EXPORT_C void CCenRepNotifyHandler::StopListening()
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{
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if(IsActive())
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{
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Cancel();
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}
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}
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/**
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* Implements CActive
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*/
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void CCenRepNotifyHandler::RunL()
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{
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// Check that notification was for correct ID or it was caused by
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// a repository wide reset (KInvalidNotificationId).
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TUint32 status = static_cast<TUint32>(iStatus.Int());
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if( !iWholeRepository && status != iId &&
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status != NCentralRepositoryConstants::KInvalidNotificationId )
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{
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#ifdef _DEBUG
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RDebug::Print(_L("CCenRepNotifyHandler::RunL(): Received notif about unknown key: %d"),
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status);
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RDebug::Print(_L("CCenRepNotifyHandler::RunL(): Notification not renewed."));
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#endif
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// We are not listening to key notified for us. Do not reorder notification
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// as there is clearly some problems in central repository.
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iCallback.HandleNotifyError(status, KErrArgument, this);
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return;
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}
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if (iWholeRepository && iStatus.Int() == KErrPermissionDenied)
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{
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RArray<TUint32> allKeyList;
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//check every single settings that we have read permission
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TRAPD(err,iSession.FindL(0x00000000,0x00000000,allKeyList));
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if (err==KErrNone)
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{
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TInt arrayCount=allKeyList.Count();
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for (TInt i=0;i<arrayCount;i++)
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{
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TUint32 dummyMeta;
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err=iSession.GetMeta(allKeyList[i],dummyMeta);
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//potential error at this stage likely to include only
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//KErrPermissionDenied plus other resource allocation
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//error such as KErrNoMemory
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if (err!=KErrNone)
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{
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TInt errorkey=allKeyList[i];
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allKeyList.Close();
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iCallback.HandleNotifyError(errorkey, err, this);
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return;
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}
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}
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}
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else
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{
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iCallback.HandleNotifyError( NCentralRepositoryConstants::KUnspecifiedKey , err, this );
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return;
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}
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}
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// Reorder notification
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TInt err = OrderNotification();
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// Handle notification
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if ( err == KErrNone )
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{
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SetActive();
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if ( iWholeRepository )
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{
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iCallback.HandleNotifyGeneric(status);
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}
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else
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{
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switch (iKeyType)
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{
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case EIntKey:
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{
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TInt newValue;
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err=iSession.Get(iId, newValue);
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if (err==KErrNone)
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{
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iCallback.HandleNotifyInt(iId, newValue);
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}
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}
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break;
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case ERealKey:
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{
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TReal newValue;
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err=iSession.Get(iId, newValue);
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301 |
if (err==KErrNone)
|
|
sl@0
|
302 |
{
|
|
sl@0
|
303 |
iCallback.HandleNotifyReal(iId, newValue);
|
|
sl@0
|
304 |
}
|
|
sl@0
|
305 |
}
|
|
sl@0
|
306 |
break;
|
|
sl@0
|
307 |
case EStringKey:
|
|
sl@0
|
308 |
{
|
|
sl@0
|
309 |
TBuf16<NCentralRepositoryConstants::KMaxUnicodeStringLength> newValue;
|
|
sl@0
|
310 |
err=iSession.Get(iId, newValue);
|
|
sl@0
|
311 |
if (err==KErrNone)
|
|
sl@0
|
312 |
{
|
|
sl@0
|
313 |
iCallback.HandleNotifyString(iId, newValue);
|
|
sl@0
|
314 |
}
|
|
sl@0
|
315 |
}
|
|
sl@0
|
316 |
break;
|
|
sl@0
|
317 |
case EBinaryKey:
|
|
sl@0
|
318 |
{
|
|
sl@0
|
319 |
TBuf8<NCentralRepositoryConstants::KMaxBinaryLength> newValue;
|
|
sl@0
|
320 |
err=iSession.Get(iId, newValue);
|
|
sl@0
|
321 |
if (err==KErrNone)
|
|
sl@0
|
322 |
{
|
|
sl@0
|
323 |
iCallback.HandleNotifyBinary(iId, newValue);
|
|
sl@0
|
324 |
}
|
|
sl@0
|
325 |
}
|
|
sl@0
|
326 |
break;
|
|
sl@0
|
327 |
default:
|
|
sl@0
|
328 |
break;
|
|
sl@0
|
329 |
}
|
|
sl@0
|
330 |
if (err!=KErrNone)
|
|
sl@0
|
331 |
{
|
|
sl@0
|
332 |
iCallback.HandleNotifyError(iId,err,this);
|
|
sl@0
|
333 |
}
|
|
sl@0
|
334 |
}
|
|
sl@0
|
335 |
}
|
|
sl@0
|
336 |
else
|
|
sl@0
|
337 |
{
|
|
sl@0
|
338 |
iCallback.HandleNotifyError(status, err, this);
|
|
sl@0
|
339 |
}
|
|
sl@0
|
340 |
}
|
|
sl@0
|
341 |
|
|
sl@0
|
342 |
/**
|
|
sl@0
|
343 |
* Implements CActive
|
|
sl@0
|
344 |
* @param aError the error returned
|
|
sl@0
|
345 |
* @return error
|
|
sl@0
|
346 |
*/
|
|
sl@0
|
347 |
TInt CCenRepNotifyHandler::RunError(TInt aError)
|
|
sl@0
|
348 |
{
|
|
sl@0
|
349 |
if ( iWholeRepository )
|
|
sl@0
|
350 |
{
|
|
sl@0
|
351 |
iCallback.HandleNotifyError(NCentralRepositoryConstants::KInvalidNotificationId,
|
|
sl@0
|
352 |
aError, this);
|
|
sl@0
|
353 |
}
|
|
sl@0
|
354 |
else
|
|
sl@0
|
355 |
{
|
|
sl@0
|
356 |
iCallback.HandleNotifyError(iId, aError, this);
|
|
sl@0
|
357 |
}
|
|
sl@0
|
358 |
|
|
sl@0
|
359 |
return KErrNone;
|
|
sl@0
|
360 |
}
|
|
sl@0
|
361 |
|
|
sl@0
|
362 |
/**
|
|
sl@0
|
363 |
* Implements CActive
|
|
sl@0
|
364 |
*/
|
|
sl@0
|
365 |
void CCenRepNotifyHandler::DoCancel()
|
|
sl@0
|
366 |
{
|
|
sl@0
|
367 |
if ( iWholeRepository )
|
|
sl@0
|
368 |
{
|
|
sl@0
|
369 |
iSession.NotifyCancelAll();
|
|
sl@0
|
370 |
}
|
|
sl@0
|
371 |
else
|
|
sl@0
|
372 |
{
|
|
sl@0
|
373 |
iSession.NotifyCancel(iId);
|
|
sl@0
|
374 |
}
|
|
sl@0
|
375 |
}
|
|
sl@0
|
376 |
|
|
sl@0
|
377 |
/*
|
|
sl@0
|
378 |
* Order notification
|
|
sl@0
|
379 |
* @return error code from CenRep
|
|
sl@0
|
380 |
*/
|
|
sl@0
|
381 |
TInt CCenRepNotifyHandler::OrderNotification()
|
|
sl@0
|
382 |
{
|
|
sl@0
|
383 |
if ( iWholeRepository )
|
|
sl@0
|
384 |
{
|
|
sl@0
|
385 |
// order notification for all keys in repository
|
|
sl@0
|
386 |
return iSession.NotifyRequest(0x00000000, 0x00000000, iStatus);
|
|
sl@0
|
387 |
}
|
|
sl@0
|
388 |
else
|
|
sl@0
|
389 |
{
|
|
sl@0
|
390 |
return iSession.NotifyRequest(iId, iStatus);
|
|
sl@0
|
391 |
}
|
|
sl@0
|
392 |
}
|
|
sl@0
|
393 |
|
|
sl@0
|
394 |
// -----------------------------------------------------------------------------
|
|
sl@0
|
395 |
// MCenRepNotifyHandlerCallback::HandleNotifyXXX
|
|
sl@0
|
396 |
// Default implementations for callback interface.
|
|
sl@0
|
397 |
// In debug build these methods print trace.
|
|
sl@0
|
398 |
// In release build they do nothing.
|
|
sl@0
|
399 |
//
|
|
sl@0
|
400 |
// These methods are documented in cenrepnotifierhandler.h. Don't redocument
|
|
sl@0
|
401 |
// here.
|
|
sl@0
|
402 |
// -----------------------------------------------------------------------------
|
|
sl@0
|
403 |
//
|
|
sl@0
|
404 |
#ifdef _DEBUG
|
|
sl@0
|
405 |
EXPORT_C void MCenRepNotifyHandlerCallback::HandleNotifyInt(TUint32 aId, TInt aNewValue)
|
|
sl@0
|
406 |
{
|
|
sl@0
|
407 |
RDebug::Print(_L("MCenRepNotifyHandlerCallback: Integer key %d changed, new value: %d"),
|
|
sl@0
|
408 |
aId, aNewValue);
|
|
sl@0
|
409 |
}
|
|
sl@0
|
410 |
|
|
sl@0
|
411 |
EXPORT_C void MCenRepNotifyHandlerCallback::HandleNotifyReal(TUint32 aId, TReal aNewValue)
|
|
sl@0
|
412 |
{
|
|
sl@0
|
413 |
RDebug::Print(_L("MCenRepNotifyHandlerCallback: Real key %d changed, new value: %e"),
|
|
sl@0
|
414 |
aId, aNewValue);
|
|
sl@0
|
415 |
}
|
|
sl@0
|
416 |
|
|
sl@0
|
417 |
EXPORT_C void MCenRepNotifyHandlerCallback::HandleNotifyString(TUint32 aId,
|
|
sl@0
|
418 |
const TDesC16& aNewValue)
|
|
sl@0
|
419 |
{
|
|
sl@0
|
420 |
RDebug::Print(_L("MCenRepNotifyHandlerCallback: String key %d changed, new value: %S"),
|
|
sl@0
|
421 |
aId, &aNewValue);
|
|
sl@0
|
422 |
}
|
|
sl@0
|
423 |
|
|
sl@0
|
424 |
EXPORT_C void MCenRepNotifyHandlerCallback::HandleNotifyBinary(TUint32 aId,
|
|
sl@0
|
425 |
const TDesC8& aNewValue)
|
|
sl@0
|
426 |
{
|
|
sl@0
|
427 |
RDebug::Print(_L("MCenRepNotifyHandlerCallback: Binary key %d changed, new value: %s"),
|
|
sl@0
|
428 |
aId, aNewValue.Ptr());
|
|
sl@0
|
429 |
}
|
|
sl@0
|
430 |
|
|
sl@0
|
431 |
EXPORT_C void MCenRepNotifyHandlerCallback::HandleNotifyGeneric(TUint32 aId)
|
|
sl@0
|
432 |
{
|
|
sl@0
|
433 |
if ( aId == NCentralRepositoryConstants::KInvalidNotificationId )
|
|
sl@0
|
434 |
{
|
|
sl@0
|
435 |
RDebug::Print(_L("MCenRepNotifyHandlerCallback: "));
|
|
sl@0
|
436 |
RDebug::Print(_L("Repository wide reset caused generic notification"));
|
|
sl@0
|
437 |
}
|
|
sl@0
|
438 |
else
|
|
sl@0
|
439 |
{
|
|
sl@0
|
440 |
RDebug::Print(_L("MCenRepNotifyHandlerCallback: Generic key %d changed"), aId);
|
|
sl@0
|
441 |
}
|
|
sl@0
|
442 |
}
|
|
sl@0
|
443 |
|
|
sl@0
|
444 |
EXPORT_C void MCenRepNotifyHandlerCallback::HandleNotifyError(TUint32 aId, TInt aError,
|
|
sl@0
|
445 |
CCenRepNotifyHandler* aHandler)
|
|
sl@0
|
446 |
{
|
|
sl@0
|
447 |
RDebug::Print(_L("MCenRepNotifyHandlerCallback %d notifies error for id: %d, error: %d"),
|
|
sl@0
|
448 |
aHandler, aId, aError);
|
|
sl@0
|
449 |
}
|
|
sl@0
|
450 |
|
|
sl@0
|
451 |
#else
|
|
sl@0
|
452 |
|
|
sl@0
|
453 |
EXPORT_C void MCenRepNotifyHandlerCallback::HandleNotifyInt(TUint32 /*aId*/, TInt /*aNewValue*/)
|
|
sl@0
|
454 |
{
|
|
sl@0
|
455 |
}
|
|
sl@0
|
456 |
|
|
sl@0
|
457 |
EXPORT_C void MCenRepNotifyHandlerCallback::HandleNotifyReal(TUint32 /*aId*/, TReal /*aNewValue*/)
|
|
sl@0
|
458 |
{
|
|
sl@0
|
459 |
}
|
|
sl@0
|
460 |
|
|
sl@0
|
461 |
EXPORT_C void MCenRepNotifyHandlerCallback::HandleNotifyString(TUint32 /*aId*/,
|
|
sl@0
|
462 |
const TDesC16& /*aNewValue*/)
|
|
sl@0
|
463 |
{
|
|
sl@0
|
464 |
}
|
|
sl@0
|
465 |
|
|
sl@0
|
466 |
EXPORT_C void MCenRepNotifyHandlerCallback::HandleNotifyBinary(TUint32 /*aId*/,
|
|
sl@0
|
467 |
const TDesC8& /*aNewValue*/)
|
|
sl@0
|
468 |
{
|
|
sl@0
|
469 |
}
|
|
sl@0
|
470 |
|
|
sl@0
|
471 |
EXPORT_C void MCenRepNotifyHandlerCallback::HandleNotifyGeneric(TUint32 /*aId*/)
|
|
sl@0
|
472 |
{
|
|
sl@0
|
473 |
}
|
|
sl@0
|
474 |
|
|
sl@0
|
475 |
EXPORT_C void MCenRepNotifyHandlerCallback::HandleNotifyError(TUint32 /*aId*/, TInt /*aError*/,
|
|
sl@0
|
476 |
CCenRepNotifyHandler* /*aHandler*/)
|
|
sl@0
|
477 |
{
|
|
sl@0
|
478 |
}
|
|
sl@0
|
479 |
#endif // _DEBUG
|
|
sl@0
|
480 |
|
|
sl@0
|
481 |
// End of File
|