diff -r 000000000000 -r 96612d01cf9f videocollection/hgmyvideos/inc/vcxhgmyvideosvideodataupdater.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videocollection/hgmyvideos/inc/vcxhgmyvideosvideodataupdater.h	Mon Jan 18 20:21:12 2010 +0200
@@ -0,0 +1,292 @@
+/*
+* Copyright (c) 2008 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:   CVcxHgMyVideosVideoData class definition*
+*/
+
+
+
+
+#ifndef VCXHGMYVIDEOSVIDEODATAUPDATER_H
+#define VCXHGMYVIDEOSVIDEODATAUPDATER_H
+
+// INCLUDE FILES
+#include <coemain.h>
+ 
+#include <thumbnailmanager.h>
+#include <thumbnailmanagerobserver.h>
+#include "vcxhgmyvideosvideodata.h"
+
+// FORWARD DECLARATIONS
+class CVcxHgMyVideosModel;
+class CHgScroller;
+class CMPXMediaArray;
+class CThumbnailManager;
+class CVcxHgMyVideosVideoList;
+class CPeriodic;
+
+// CLASS DECLARATION
+
+/**
+ *
+ * @lib vcxhgmyvideos.lib
+ */
+NONSHARABLE_CLASS( CVcxHgMyVideosVideoDataUpdater ) :
+        public CActive,
+        public MThumbnailManagerObserver 
+    {
+    public:
+
+        /**
+         * Two-phased constructor.
+         * 
+         * @param aModel Reference to component model.
+         * @param aScroller Reference to Hg list control.
+         * @param aVideoArray Reference to video array.
+         * @return New object.
+         */
+        static CVcxHgMyVideosVideoDataUpdater* NewL( 
+                CVcxHgMyVideosModel& aModel,
+                CHgScroller& aScroller,
+                CVcxHgMyVideosVideoList& aVideoArray );
+
+        /**
+         * Two-phased constructor.
+         * 
+         * @param aModel Reference to component model.
+         * @param aScroller Reference to Hg list control.
+         * @param aVideoArray Reference to video array.
+         * @return New object. 
+         */
+        static CVcxHgMyVideosVideoDataUpdater* NewLC( 
+                CVcxHgMyVideosModel& aModel,
+                CHgScroller& aScroller,
+                CVcxHgMyVideosVideoList& aVideoArray );
+
+        /**
+         * Destructor.
+         */
+        virtual ~CVcxHgMyVideosVideoDataUpdater();
+
+        /**
+         * Sets data updater to pause or normal mode.
+         * 
+         * @param aPaused If ETrue, updater is paused.
+         */
+        void SetPausedL( TBool aPaused );
+
+        /**
+         * Called to inform video data updater that info array has changed.
+         * Causes re-setting of all data as info array is the bases for fetched
+         * additional video data.  
+         */
+        void InfoArrayChanged();        
+
+        /**
+         * Called by video list implementation when new data is needed.
+         * Appends data item into buffer.
+         * 
+         * @param aMPXItemId MPX item id of video data.
+         */
+        void RequestDataL( TMPXItemId aMPXItemId );
+        
+        /**
+         * Called by video list implementation when data is not needed anymore.
+         * Removes data item from buffer.
+         * 
+         * @param aMPXItemId MPX item id of video data.
+         */
+        void ReleaseData( TMPXItemId aMPXItemId );
+        
+    public: // From MThumbnailManagerObserver
+        
+        /**
+         * Preview thumbnail generation or loading is complete.
+         *
+         * @param aThumbnail An object representing the resulting thumbnail.
+         * @param aId Request ID for the operation
+         */
+        void ThumbnailPreviewReady( MThumbnailData& aThumbnail, TThumbnailRequestId aId );
+    
+        /**
+         * Final thumbnail bitmap generation or loading is complete.
+         *
+         * @param aError         Error code.
+         * @param aThumbnail     An object representing the resulting thumbnail.
+         * @param aId            Request ID for the operation.
+         */
+        void ThumbnailReady( TInt aError, MThumbnailData& aThumbnail, TThumbnailRequestId aId );
+                
+    public: // From CActive
+
+        /**
+         * From CActive.
+         */
+        void RunL();
+
+        /**
+         * From CActive. 
+         * 
+         * @param aError Error code.
+         * @return KErrNone if continuing is ok.
+         */        
+        TInt RunError( TInt aError );
+        
+        /**
+         * From CActive.
+         */        
+        void DoCancel();
+
+    protected:    
+        
+        /**
+         * Default constructor
+         *
+         * @param aModel Reference to component model.
+         * @param aScroller Reference to Hg list control.
+         * @param aVideoArray Reference to video array.
+         */
+        CVcxHgMyVideosVideoDataUpdater( 
+                CVcxHgMyVideosModel& aModel,
+                CHgScroller& aScroller,
+                CVcxHgMyVideosVideoList& aVideoArray );
+    
+        /**
+         * 2nd phase constructor.
+         */
+        void ConstructL();
+		
+		/**
+         * Returns index of fetch array based on MPX Item Id.
+         * 
+         * @param aMpxItemId MPX Item Id.
+         * @return Index of array or KErrNotFound.
+         */
+        TInt IndexByMPXItemId( TMPXItemId aMpxItemId );
+        
+        /**
+         * Selects next index to be fetched.  
+         */
+        void SelectNextIndexL();
+        
+        /**
+         * Removes item from fetch array.
+         * 
+         * @param aIndex Index of fetch array.
+         */
+        void RemoveItem( TInt aIndex );
+                
+        /**
+         * Cancels possibly ongoing activities (thumbnail generation, DRM check).
+         *
+         * @param aIndex Index of fetch array.
+         */
+        void CancelActivities( TInt aIndex );
+                
+        /**
+         * Adds item into fetch array. 
+         * 
+         * @param aMPXItemId MPX item id.
+         */
+        void AddItemToFetchArrayL( TMPXItemId aMPXItemId );
+        
+        /**
+         * Cancels any on-going video data operations and deletes fetch array.
+         */
+        void CancelAndDeleteFetchArray();
+        
+        /**
+         * Makes sure that video data fetching continues.
+         */
+        void ContinueVideoDataFetchingL();
+        
+        /**
+         * Updates fetched video data to UI.
+         */
+        void UpdateVideoDataToUiL( CVcxHgMyVideosVideoData& videoData );
+        
+        /**
+         * If needed creates, and returns pointer to Thumbnail Manager.
+         *
+         * @return Pointer to Thumbnail Manager.
+         */
+        CThumbnailManager* ThumbnailManagerL();
+        
+        /**
+         * Checks if list refreshing is needed.
+		 * 
+		 * @param aIndex The item index on the Ganes list that was modified last.
+         * @return ETrue if refreshing is needed, otherwise EFalse.
+		 */
+        TBool ListRefreshNeeded( TInt aIndex );
+        
+        /**
+         * Callback method for RefreshTimer.  
+         */
+        static TInt RefreshTimerCallBack( TAny* aAny );
+        
+        /**
+         * Refreshes the ganes list.
+         */
+        void RefreshScreen();
+        
+    protected:
+
+        /**
+         * Reference to component's model.
+         * Not own.
+         */
+        CVcxHgMyVideosModel& iModel;
+        
+        /**
+         * Hg list component.
+         * Not own.
+         */
+        CHgScroller& iScroller;
+        
+        /**
+         * Array of videos that need data fetching.
+         * Own
+         */
+        RPointerArray<CVcxHgMyVideosVideoData> iFetchArray; 
+        
+        /**
+         * Reference to video array.
+         * Not own.
+         */
+        CVcxHgMyVideosVideoList& iVideoArray; 
+        
+        /**
+         * S60 Thumbnail Manager.
+         * Own.
+         */
+        CThumbnailManager* iTnEngine;
+                
+        /** 
+         * Used for indicating that list needs to be refreshed.         
+         * Own.
+         */ 
+        CPeriodic* iRefreshTimer;
+        
+        /**
+         * Flag for pause state.
+         */
+        TBool iPaused;
+                
+        /**
+         * Flag indicates that list refresh is delayed. 
+         */
+        TBool iListRefreshIsDelayed;
+    };
+
+#endif // VCXHGMYVIDEOSVIDEODATAUPDATER_H