--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/callcontinuity/vcc/inc/cvcctransferprovider.h Wed Sep 01 12:29:57 2010 +0100
@@ -0,0 +1,175 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: Sends and receives DTMF tones
+*
+*/
+
+
+
+#ifndef CVCCTRANSFERPROVIDER_H
+#define CVCCTRANSFERPROVIDER_H
+
+class CVccPerformer;
+
+#include <mccptransferprovider.h> // MCCPTransferProvider
+#include <mccptransferobserver.h> // MCCPTransferObserver
+
+/**
+ * DTMF provider.
+ * Contains DTMF providers from call providers and forward all requests between
+ * them and CCE
+ *
+ * @lib vccperformer.lib
+ * @since S60 v3.2
+ */
+class CVccTransferProvider : public CBase,
+ public MCCPTransferProvider,
+ public MCCPTransferObserver
+ {
+
+public:
+
+ /**
+ * Two-phased constructor.
+ * @param aProviders Service providers
+ * @param aObserver
+ * @param aDirector Reference to Director object
+ */
+ static CVccTransferProvider* NewL ( CVccPerformer* aCall );
+
+ /**
+ * Destructor.
+ */
+ virtual ~CVccTransferProvider();
+
+ /**
+ * Attended transfer to given call recipient.
+ * There needs to exist two calls. a call between A-B and A-C. A wants to transfer the call to B-C.
+ * Both calls A-B and A-C will be disconnected after transfer.
+ * In above case C will be the aTransferTargetCall call recipient. B is the recipient of the
+ * current call between A-B - called on A's call object transfer provider.
+ * The A-B call is on hold.
+ * Actual request result indication comes via observer classes
+ * @param aTransferTargetCall Call containing the transfer target info.
+ * @return KErrNone if request was started succesfully.
+ * @return KErrNotReady if call is not in connected or on-hold state.
+ * @return KErrArgument transfer traget address was illegal.
+ * @pre Call state is MCCPCallObserver::ECCPStateConnected or MCCPCallObserver::ECCPStateHold
+ * @since S60 3.2
+ */
+ TInt AttendedTransfer( MCCPCall& aTransferTargetCall );
+
+ /**
+ * Attended transfer to given address. There does not need to be
+ * a current call between the given transfer target.
+ * Actual request result indication comes via observer class
+ * @param aTransferTarget Transfer target address
+ * @return KErrNone if request was started succesfully.
+ * @return KErrNotReady if call is not in connected or on-hold state.
+ * @return KErrArgument transfer address was illegal.
+ * @pre Call state is MCCPCallObserver::ECCPStateConnected or MCCPCallObserver::ECCPStateHold
+ * @since S60 3.2
+ */
+ TInt AttendedTransfer( const TDesC& aTransferTarget );
+
+ /**
+ * Unattended transfer. Call is requested to be transferred to given address.
+ * After MCCPTransferObserver::ECCPRemoteTransferring event current call will be
+ * disconnected and no transfer status is checked from the operation.
+ * Actual request result indication comes via observer classes
+ * @since S60 3.2
+ * @param aTransferTarget Address of the target
+ * @return KErrNone if request was started succesfully.
+ * @return KErrNotReady if call is not in connected or on-hold state.
+ * @return KErrArgument transfer address was illegal.
+ * @pre Call state is MCCPCallObserver::ECCPStateConnected or MCCPCallObserver::ECCPStateHold
+ */
+ TInt UnattendedTransfer( const TDesC& aTransferTarget );
+
+ /**
+ * Accept incoming call transfer request from the call remote party.
+ * Actual request result indication comes via observer class
+ * @since Series 60 3.2
+ * @param aAccept ETrue - accept transfer, EFalse do not accept transfer request.
+ * @return KErrNone if request was started succesfully.
+ * @return KErrNotReady if call is not in connected or on-hold state.
+ * @return KErrArgument transfer address was illegal.
+ * @pre Call state is MCCPCallObserver::ECCPStateConnected or MCCPCallObserver::ECCPStateHold
+ * @pre MCCPObserver::CallCreated is called with the newly created call
+ */
+ TInt AcceptTransfer( const TBool aAccept );
+
+ /**
+ * When the other end of the call has requested call transfer to third party it is notified to
+ * MCCPTransferObserver::TransferEventOccurred(MCCPTransferObserver::ECCPRemoteTransferring).
+ * The new recipient of the call can be fetched via this method.
+ * @since Series 60 3.2
+ * @param none
+ * @return new recipient for the call after transfer
+ * @return KNullDesC if no transfer target is available
+ * @pre Call state is MCCPCallObserver::ECCPStateConnected or MCCPCallObserver::ECCPStateHold
+ * @pre MCCPObserver::CallCreated is called with the newly created call
+ */
+ const TDesC& TransferTarget() const;
+
+ /**
+ * Add an observer for transfer related events.
+ * Currently CCE will set only one observer.
+ * @since S60 v3.2
+ * @param aObserver Observer to add.
+ * @return none
+ * @leave system error if observer adding fails
+ */
+ void AddObserverL( const MCCPTransferObserver& aObserver );
+
+ /**
+ * Remove an observer.
+ * @since S60 v3.2
+ * @param aObserver Observer to remove.
+ * @return KErrNone if removed succesfully.
+ * @return KErrNotFound if observer was not found.
+ */
+ TInt RemoveObserver( const MCCPTransferObserver& aObserver );
+
+ void TransferEventOccurred(
+ const MCCPTransferObserver::TCCPTransferEvent aEvent );
+
+ void UpdateL();
+private:
+
+ /**
+ * C++ constructor
+ * @param aObserver Reference to DTMF observer
+ * @param aDirector Reference to Director
+ */
+ CVccTransferProvider( CVccPerformer* aCall );
+
+ /**
+ * Symbian second-phase constructor
+ * @param aProviders Reference to array of the Service Providers
+ */
+ void ConstructL( );
+
+private: // data
+
+ /**
+ * DTMF event observers.
+ * Own.
+ */
+ RPointerArray<MCCPTransferObserver> iObservers;
+ CVccPerformer* iPerfCall;
+ MCCPTransferProvider* iCallTransferProvider;
+ };
+
+#endif // CVCCTRANSFERPROVIDER_H