--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/omadrm/drmengine/notifier/inc/DRMEventHandler.h	Thu Dec 17 08:52:27 2009 +0200
@@ -0,0 +1,239 @@
+/*
+* Copyright (c) 2004-2006 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:  This class handles registering and unregistering of
+*                DRM event observers to DRM notifier, and sending
+*                DRM notifications to other registered observers.
+*
+*/
+
+
+
+#ifndef CDRMEVENTHANDLER_H
+#define CDRMEVENTHANDLER_H
+
+//  INCLUDES
+#include <e32base.h>
+#include <DRMEvent.h>
+#include <DRMEventAddRemove.h>
+#include <DRMEventObserver.h>
+#include "DRMEventModify.h"
+#include "DRMEventTimeChange.h"
+#include "DRMNotifierClient.h"
+
+// CONSTANTS
+const TInt KOperationNone             = 0;
+const TInt KRegisterOperation         = 1;
+const TInt KRegisterURIOperation      = 2;
+const TInt KUnRegisterOperation       = 3;
+const TInt KUnRegisterURIOperation    = 4;
+
+// MACROS
+// DATA TYPES
+// FUNCTION PROTOTYPES
+// FORWARD DECLARATIONS
+class MDRMEventObserver;
+
+// CLASS DECLARATION
+
+/**
+ *  CDRMEventHandler
+ *  Performs the required operations between the client and the server
+ *  Handles the handles for the observers
+ *
+ *  @lib DRMCommon.dll
+ *  @since S60Rel2.6
+ */
+class CDRMEventHandler : public CActive
+    {
+public:  // Constructors and destructor
+        
+    /**
+    * Two-phased constructor.
+    */
+    static CDRMEventHandler* NewL();
+        
+    /**
+    * Destructor.
+    */
+    virtual ~CDRMEventHandler();
+
+public: // New functions
+
+    /**
+    * RegisterEventObserverL
+    *
+    * Registers a new event observer to DRM Notifier. Listens to all events
+    * of the given type
+    *
+    * @since S60Rel2.6
+    * @param aObserver Observer.
+    * @param aEvent the type of event to listen to
+    * @return none, leaves with Symbian OS error code if an error occurs
+    */
+    void RegisterEventObserverL( MDRMEventObserver& aObserver , 
+                                          const TDRMEventType& aEvent);   
+    /**
+    * UnRegisterEventObserverL
+    *
+    * Unregisters existing event observer from DRM Notifier.
+    *
+    * @since S60Rel2.6
+    * @param aObserver Observer.
+    * @param aEvent the type of event to unregister
+    * @return none, leaves with Symbian OS error code if an error occurs
+    */
+    void UnRegisterEventObserverL( MDRMEventObserver& aObserver, 
+                                            const TDRMEventType& aEvent);
+    /**
+    * RegisterEventObserverL
+    *
+    * Registers a new event observer to DRM Notifier. Only recieves
+    * notification when the rights accociated with the given content id
+    * are handled
+    *
+    * @since S60Rel2.6
+    * @param aObserver Observer
+    * @param aEvent the type of event to listen to
+    * @param aContentID the specific content id to listen to
+    * @return none, leaves with Symbian OS error code if an error occurs
+    */
+    void RegisterEventObserverL( MDRMEventObserver& aObserver , 
+                                          const TDRMEventType& aEvent,
+                                          const TDesC8& aContentID);
+    /**
+    * UnRegisterEventObserverL
+    *
+    * Unregisters existing event observer from DRM Notifier.
+    *
+    * @since S60Rel2.6
+    * @param aObserver Observer.
+    * @param aEvent the type of event to listen to
+    * @param aContentID the specific content id to listen to
+    * @return none, leaves with Symbian OS error code if an error occurs
+    */
+    void UnRegisterEventObserverL( MDRMEventObserver& aObserver, 
+                                            const TDRMEventType& aEvent,
+                                            const TDesC8& aContentID);
+    /**
+    * SendEventL
+    *
+    * Sends a notification to registered observers, asyncronous
+    *
+    * @since S60Rel2.6
+    * @param aEvent the event to send
+    * @param aStatus the request status of the event
+    */
+    void SendEventL( MDRMEvent& aEvent, TRequestStatus& aStatus );
+           
+public: // Functions from base classes
+        
+protected:  // New functions
+    CDRMEventHandler();
+
+    /**
+    * 2nd phase constructor.
+    */
+    void ConstructL();
+
+    protected:  // Functions from base classes
+        
+    /**
+    * From CActive: RunL catches events from DRM server.
+    */
+    void RunL();
+        
+    void DoCancel();
+
+    private:
+
+    /**
+    * GetEventObjectLC
+    *
+    * Reserves memory for an object specified in the internal structure
+    * and leaves it in the cleanup stack
+    *
+    * @return a base class pointer to the requested object
+    *         The function leaves if an error occurs with a Symbian OS
+    *         error code
+    */
+    MDRMEvent* GetEventObjectLC();
+        
+    /**
+    * HandleRunL
+    * 
+    * Helper function for RunL that does the actual callbacks to
+    * registered clients
+    * 
+    * @return none
+    */
+    void HandleRunL();
+
+    // Prohibit copy constructor if not deriving from CBase.
+    CDRMEventHandler( const CDRMEventHandler& );
+    // Prohibit assigment operator if not deriving from CBase.
+    CDRMEventHandler& operator=( const CDRMEventHandler& );
+
+public:     // Data
+    
+protected:  // Data
+
+private:    // Data
+    struct TObserverData 
+        {
+        MDRMEventObserver* iObserver;
+        HBufC8* iContentID;
+        };
+
+    struct TDelayedObserverData
+        {
+        TInt iRequest;
+        MDRMEventObserver* iObserver;
+        TDRMEventType iEventType;
+        HBufC8* iContentID;
+        };
+
+    // Instance of c/s communications.
+    RDRMNotifierClient* iHandler;
+        
+    // List of observers
+    CArrayPtrSeg< TObserverData >* iAddRemoveObservers;
+    CArrayPtrSeg< TObserverData >* iModifyObservers;
+    CArrayPtrSeg< TObserverData >* iTimeChangeObservers;
+    CArrayPtrSeg< TDelayedObserverData >* iDelayedObservers;
+
+    // variable to tell if calls are being delayed
+    TBool iIsDelayed;
+
+    // Status of Client
+    TBool iIsOpen;
+
+    // Client Server Communication
+    TUint8* iDataBuffer;
+    TDRMEventType* iEventType;
+    TPtr8* iData;
+
+    TUint8* iWaitDataBuffer;
+    TDRMEventType* iEventTypeWait;
+    TPtr8* iWaitData;
+
+public:     // Friend classes
+
+protected:  // Friend classes
+
+private:    // Friend classes
+    };
+
+#endif      // DRMEVENTHANDLER_H   
+            
+// End of File