--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/serviceproviders/sapi_mediamanagement/mediamanagementservice/inc/mgthumbobserver.h	Fri Jul 03 15:51:24 2009 +0100
@@ -0,0 +1,166 @@
+/*
+* Copyright (c) 2007-2007 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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 is observer class for thumbnail generation request
+*
+*/
+
+#ifndef MGTHUMBOBSERVER_H_
+#define MGTHUMBOBSERVER_H_
+
+#include<e32base.h>
+#include<e32cmn.h>
+#include<thumbnailmanager.h>
+#include<thumbnailmanagerobserver.h>
+
+class CThumbnailManager;
+class MThumbnailObserver;
+const TInt KNegative = -1;
+
+/**
+*  TThumbnailRequestInfo class This class contains the information of thumbanil generation request 
+*
+*  @since  Series60 v3.2
+*/
+
+class TThumbnailRequestInfo 
+    {
+public:
+    
+    /**
+     * Constructor
+     */                 
+   
+       TThumbnailRequestInfo():iObserver(NULL),iThumbnailPath(NULL),iTransactionId(KNegative),iThumbnailRequestId(KNegative)
+        {
+    
+        }
+    
+    public:
+        /**
+         *Pointer to instance of MThumbnailObserver  
+         */    
+        MThumbnailObserver* iObserver;
+        /**
+         *Thumbnail path 
+         */    
+        HBufC* iThumbnailPath;
+        /**
+         *Transaction Id
+         */    
+        TInt32 iTransactionId;
+        /**
+         *It is thumbanil request id 
+         */    
+  
+        TThumbnailRequestId iThumbnailRequestId;
+        
+    };
+
+/**
+*  CThumbnailObserver class 
+*  @since  Series60 v3.2
+*/
+class CThumbnailObserver: public CActive ,public MThumbnailManagerObserver
+    {
+    public:
+
+        /**
+         * Two-phased constructor
+        * @return CThumbnailObserver*  Returns the instance of
+         *                                 CThumbnailObserver.
+         */                 
+               
+        static CThumbnailObserver* NewL();
+        /**
+         * This method adds the thumbnail request information to observer
+         *@param aObserver  Observer
+         *@param aTransactionID TransactionId
+         *@param aThumbnailPath Path where thumbnail will be saved
+         *@param aThumbnailRequestId It request id of thumbnail generation request
+         * @return void 
+         */                 
+        void AddToObserverL(MThumbnailObserver* aObserver,TInt32 aTransactionID ,TDesC& aThumbnailPath , TThumbnailRequestId aThumbnailRequestId);
+        /**
+         * This method is derived from MThumbnailManagerObserver
+         *@param aThumbnail  Thumbnaildata
+         *@param aThumbnailRequestId It request id of thumbnail generation request
+         * @return void 
+         */             
+        virtual void ThumbnailPreviewReady(MThumbnailData& aThumbnail, TThumbnailRequestId aId);
+        /**
+         * This method is derived from MThumbnailManagerObserver
+         *@param aError  Error returned to callback method
+         *@param aThumbnail  Thumbnaildata
+         *@param aThumbnailRequestId It request id of thumbnail generation request
+         * @return void 
+         */             
+        virtual void ThumbnailReady(TInt aError, MThumbnailData& aThumbnail, TThumbnailRequestId aId);
+        /**
+          * Destructor
+          */             
+        ~CThumbnailObserver();
+        /**
+          * This method cancels the thumbnail generation request
+          *@param aTransactionID Transaction Id
+          * @return TInt it returns KErrNone if request is canceled otherwise system wide error 
+          */     
+        TInt Cancel(TInt32 aTransactionID);
+            /**
+            * This method sets the thumbnail manager to observer class
+            *@param aThumbnailManager pointer to thumbnail manager
+            * @return void  
+            */    
+        void SetThumbnailMangager(CThumbnailManager* aThumbnailManager);
+        /**
+         * User will call this method when thumbnail already exists
+         * @return void  
+         */    	
+        void ThumbnailAlreadyExists();
+    public: 
+        /**
+         * Methods derived from CActive
+         * @return void  
+         */     
+
+        void DoCancel();
+        /**
+         * Methods derived from CActive
+         * @return void  
+         */     
+
+        void RunL();
+				        
+    private: 
+        /**
+         * Constructor
+         */     
+
+        CThumbnailObserver();
+    private:
+        
+        /**
+         * Pointer to thumbnailManager
+         */     
+      
+        CThumbnailManager* iThumbnailManager;
+        
+        /**
+         * Array of TThumbnailRequestInfo
+         */     
+
+        RArray<TThumbnailRequestInfo> iThumbnailRequestArray; 
+         
+    };
+
+#endif /* MGTHUMBOBSERVER_H_ */