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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 "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: Observes notifications from usb
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*
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*/
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#ifndef C_USBMESSAGENOTIFICATIONOBSERVER_H
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#define C_USBMESSAGENOTIFICATIONOBSERVER_H
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#include <e32base.h>
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#include <e32property.h>
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#include <usbotgdefs.h>
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class RUsb;
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/**
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* Class implements functionality of showing/blinking usb indicator
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* Class does not provide method to get response from the user
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*/
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NONSHARABLE_CLASS( MUsbMessageNotificationObserver)
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{
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public:
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/**
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* Call back on message notification
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* @param aMessage Message id
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*/
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virtual void MessageNotificationReceivedL(TInt aMessage) = 0;
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/**
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* Called when BadHubPosition error happen
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*/
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virtual void BadHubPositionL() = 0;
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/**
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* Callen if VBus error happen
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*/
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virtual void VBusErrorL() = 0;
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/**
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* Called when SRP request received
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*/
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virtual void SrpReceivedL() = 0;
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/**
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* Called when session requested
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*/
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virtual void SessionRequestedL() = 0;
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/**
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* Called when error happened
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* @param aError error code
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*/
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virtual void MessageNotificationErrorL(TInt aError) = 0;
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};
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/**
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* Class observes USB Notifications
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*
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*/
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NONSHARABLE_CLASS( CUsbMessageNotificationObserver ) : public CActive
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{
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public:
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/**
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* Two-phased constructor.
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* @param aUsb usbman
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*/
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static CUsbMessageNotificationObserver* NewL(RUsb* aUsb);
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/**
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* Destructor.
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*/
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virtual ~CUsbMessageNotificationObserver();
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/**
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* Subscribes for notifications
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* @param aObserver observer
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*/
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void SubscribeL(MUsbMessageNotificationObserver& aObserver);
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/**
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* Unsubscribe from notifications
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* @param aObserver Observer
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*/
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void UnsubscribeL(MUsbMessageNotificationObserver& aObserver);
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private:
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// From CActive
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/**
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* Called by framework when outstanding request completed
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*
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*/
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void RunL();
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/**
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* Called when outstanding request camcelled
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*
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*/
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void DoCancel();
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/**
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* Called when RunL leaves
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*
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* @param aError error id
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* @return error id
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*/
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TInt RunError(TInt aError);
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private:
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/**
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* Default constructor
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* @param aUsb usbman
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*/
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CUsbMessageNotificationObserver(RUsb* aUsb);
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/**
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* Second phase construction
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*/
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void ConstructL();
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private:
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// data
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/**
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* The observer reports to own observers
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* Not owns
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*/
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RPointerArray<MUsbMessageNotificationObserver> iObservers;
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/**
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* Notifications come from USB
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* Not own
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*/
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RUsb* iUsb;
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/**
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* Info from notification comes to this member
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*/
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TInt iMessage;
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};
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#endif // C_USBMESSAGENOTIFICATIONOBSERVER_H
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