--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/usbengines/usbotgwatcher/inc/cusbhosteventnotificationobserver.h Thu Dec 17 09:14:30 2009 +0200
@@ -0,0 +1,162 @@
+/*
+* Copyright (c) 2008-2009 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: Monitors host events
+ *
+*/
+
+
+#ifndef C_USBHOSTEVENTNOTIFICATIONOBSERVER_H
+#define C_USBHOSTEVENTNOTIFICATIONOBSERVER_H
+
+#include <e32base.h>
+#include <e32property.h>
+#include <usbotgdefs.h>
+#include <usbhostdefs.h>
+
+class RUsb;
+
+/**
+ * Observer must implement this interface to get notifications
+ *
+ */
+NONSHARABLE_CLASS( MUsbHostEventNotificationObserver)
+ {
+public:
+
+ /**
+ * Called when device is attached
+ * @param aInfo additional information
+ */
+ virtual void DeviceAttachedL(TDeviceEventInformation aInfo) = 0;
+
+ /**
+ * Called when device is detached
+ * @param aInfo additional information
+ */
+ virtual void DeviceDetachedL(TDeviceEventInformation aInfo) = 0;
+
+ /**
+ * Called when drivers are loaded
+ * @param aInfo additional information
+ */
+ virtual void DriverLoadSuccessL(TDeviceEventInformation aInfo) = 0;
+
+ /**
+ * Called when drivers are loaded partially
+ * @param aInfo additional information
+ */
+ virtual void DriverLoadPartialSuccessL(TDeviceEventInformation aInfo) = 0;
+
+ /**
+ * Called when drivers loading failed
+ * @param aInfo additional information
+ */
+ virtual void DriverLoadFailureL(TDeviceEventInformation aInfo) = 0;
+
+ /**
+ * Called when error happens while observing
+ * @param aError error code
+ */
+ virtual void HostEventNotificationErrorL(TInt aError) = 0;
+
+ };
+
+/**
+ * Class observes USB Notifications
+ */
+NONSHARABLE_CLASS( CUsbHostEventNotificationObserver ) : public CActive
+ {
+
+public:
+
+ /**
+ * Two-phased constructor.
+ * @param aUsb usbman
+ * @return this class instance
+ */
+ static CUsbHostEventNotificationObserver* NewL(RUsb* aUsb);
+
+ /**
+ * Destructor.
+ */
+ virtual ~CUsbHostEventNotificationObserver();
+
+ /**
+ * Add observer to list of observers
+ * @param aObserver observer
+ */
+ void SubscribeL(MUsbHostEventNotificationObserver* aObserver);
+
+ /**
+ * Removes observer from list of observers
+ * @param aObserver Observer
+ */
+ void UnsubscribeL(MUsbHostEventNotificationObserver* aObserver);
+
+private:
+
+ // From CActive
+ /**
+ * Called when request completed
+ */
+ void RunL();
+
+ /**
+ * Called when outstanding request cancelled
+ */
+ void DoCancel();
+
+ /**
+ * Called when RunL leaves
+ * @param aError errorcode from RunL
+ * @return aError errorcode
+ */
+ TInt RunError(TInt aError);
+
+private:
+
+ /**
+ * Default constructor.
+ * @param aUsb usbman
+ */
+ CUsbHostEventNotificationObserver(RUsb* aUsb);
+
+ /**
+ * 2nd phase constructor.
+ */
+ void ConstructL();
+
+private:
+ // data
+
+ /**
+ * The observer reports changes to own observers
+ * Owns
+ */
+ RPointerArray<MUsbHostEventNotificationObserver> iObservers;
+
+ /**
+ * Notifications come from USB
+ * Not own
+ */
+ RUsb* iUsb;
+
+ /**
+ * Info from notification comes to this member
+ */
+ TDeviceEventInformation iEventInfo;
+
+ };
+
+#endif // C_USBHOSTEVENTNOTIFICATIONOBSERVER_H