--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/collectionframework/datasource/plugins/glxdatasourcemde/inc/glxdatasourcetaskmdethumbnail.h	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,138 @@
+/*
+* Copyright (c) 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:    Data Source Task MDE Thumbnail
+*
+*/
+
+
+
+
+#ifndef GLXDATASOURCETASKMDETHUMBNAIL_H_
+#define GLXDATASOURCETASKMDETHUMBNAIL_H_
+
+/**
+ * @author Simon Brooks, Alex Birkett
+ */
+
+#include "glxdatasourcetaskmdeattribute.h"
+
+#ifdef USE_S60_TNM
+#include "mthumbnailfetchrequestobserver.h"
+#endif
+
+#include <mglxtnthumbnailcreatorclient.h>
+#include <glxthumbnailrequest.h>
+
+/**
+ *  CGlxDataSourceTaskMdeThumnail class 
+ *  Services thumbnail requests
+ */
+NONSHARABLE_CLASS(CGlxDataSourceTaskMdeThumbnail) : public CGlxDataSourceTaskMde 
+#ifdef USE_S60_TNM
+									                , public MThumbnailFetchRequestObserver
+#else									                
+									                , public MGlxtnThumbnailCreatorClient
+#endif									                
+	{
+public:
+    /**
+	 * Constructor
+	 * @param aRequest thumbnail request to service
+	 * @param aObserver observer
+	 * @param aDataSource data source
+	 */
+	CGlxDataSourceTaskMdeThumbnail(CGlxThumbnailRequest* aRequest, 
+			MGlxDataSourceRequestObserver& aObserver, CGlxDataSource* aDataSource);
+
+    /**
+     * Destructor
+     */
+    ~CGlxDataSourceTaskMdeThumbnail();
+
+private: // From CGlxDataSourceTask     
+    /**
+     * See @ref CGlxDataSourceTask::ExecuteRequestL
+     */ 
+    void ExecuteRequestL();
+    
+    /**
+     * See @ref CGlxDataSourceTask::HandleRequestComplete
+     */ 
+    void HandleRequestComplete(TInt aError);
+
+private: // From CGlxDataSourceTaskMde
+    /**
+     * See @ref CGlxDataSourceTaskMde::DoHandleQueryCompletedL
+     */ 
+    void DoHandleQueryCompletedL(CMdEQuery& aQuery);
+
+#ifdef USE_S60_TNM
+private: //MThumbnailFetchRequestObserver
+    void ThumbnailFetchComplete(TInt aError);
+    void FetchFileInfoL();
+#endif
+
+private: // From MGlxtnThumbnailCreatorClient
+    /**
+     * See @ref MGlxtnThumbnailCreatorClient::ThumbnailFetchComplete
+     */ 
+    void ThumbnailFetchComplete(const TGlxMediaId& aItemId,
+                            TGlxThumbnailQuality aQuality, TInt aErrorCode);
+            
+    /**
+     * See @ref MGlxtnThumbnailCreatorClient::ThumbnailDeletionComplete
+     */
+    void ThumbnailDeletionComplete(const TGlxMediaId& aItemId, TInt aErrorCode);
+
+    /**
+     * See @ref MGlxtnThumbnailCreatorClient::FilterAvailableComplete
+     */
+    void FilterAvailableComplete(const RArray<TGlxMediaId>& aIdArray, TInt aErrorCode);
+    
+    /**
+     * See @ref MGlxtnThumbnailCreatorClient::FetchFileInfoL
+     */
+    void FetchFileInfoL(CGlxtnFileInfo* aInfo, const TGlxMediaId& aItemId,
+                    TRequestStatus* aStatus);
+      
+    /**
+     * See @ref MGlxtnThumbnailCreatorClient::CancelFetchUri
+     */
+    void CancelFetchUri(const TGlxMediaId& aItemId);
+    
+    /**
+     * See @ref MGlxtnThumbnailCreatorClient::ThumbnailStorage
+     */
+    MGlxtnThumbnailStorage* ThumbnailStorage();
+    			
+private:
+ 	void HandleThumbnailFetchCompleteL(const TGlxMediaId& aId,
+		TGlxThumbnailQuality aQuality);	
+	
+ 	void DoHandleContainerFirstItemQueryCompletedL();
+    
+ 	void CompleteFetchFileInfoL(CMdEObject* aItem);
+        
+private:
+	void CompleteThumbnailRequest(TInt aError);
+	
+private:
+    CGlxtnFileInfo* iTnFileInfo;
+
+    TRequestStatus* iTnRequestStatus;
+
+    TBool iTnRequestInProgress;
+	};
+
+#endif // GLXDATASOURCETASKMDETHUMBNAIL_H_