videofeeds/hgvodui/inc/vcxhgvodcategorylistmodelhandler.h
changeset 0 96612d01cf9f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/videofeeds/hgvodui/inc/vcxhgvodcategorylistmodelhandler.h	Mon Jan 18 20:21:12 2010 +0200
@@ -0,0 +1,231 @@
+/*
+* 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:    HG VOD*
+*/
+
+
+
+
+#ifndef VCXHGVODCATEGORYLISTMODELHANDLER_H
+#define VCXHGVODCATEGORYLISTMODELHANDLER_H
+
+#include <ganes/HgScrollBufferObserverIface.h>
+
+#include "vcxhgvodmainviewcontainer.h"
+#include "vcxnscategoryproviderif.h"
+#include "vcxnscategoryproviderobserver.h"
+
+class CHgScroller;
+class CHgItem;
+class CVcxHgVodMainView;
+class CVcxNsUiEngine;
+class CVcxNsCategory;
+class CVcxHgVodCategoryListImpl;
+
+// CLASS DECLARATION
+/**
+ *  
+ *  
+ *
+ *  @code
+ *   
+ *  @endcode
+ *
+ *  @lib vcxhgvodui.lib
+ *  @since S60 v5.0
+ */
+class CVcxHgVodCategoryListModelHandler : public CBase,
+                                          public MVcxNsCategoryProviderObserver,
+                                          public MHgScrollBufferObserver
+    {
+
+public:
+
+    /**
+     * Two-phased constructor.
+     */
+    static CVcxHgVodCategoryListModelHandler* NewL( 
+            CVcxNsUiEngine& aDataProviderIf, 
+            CVcxHgVodMainView& aView, 
+            CHgScroller& aScroller,
+            CVcxHgVodCategoryListImpl& aCategoryListImpl );
+    
+    /**
+     * Two-phased constructor.
+     */
+    static CVcxHgVodCategoryListModelHandler* NewLC( 
+            CVcxNsUiEngine& aDataProviderIf, 
+            CVcxHgVodMainView& aView, 
+            CHgScroller& aScroller,
+            CVcxHgVodCategoryListImpl& aCategoryListImpl );
+
+    /**
+    * Destructor.
+    */
+    virtual ~CVcxHgVodCategoryListModelHandler();
+
+    /**
+    * Activate model
+    * 
+    */
+    void DoActivateModelL( );
+    
+    /**
+    * Deactivate model
+    * 
+    */
+    void DoDeActivateModel( );
+    
+    /**
+    * Get services and set to widget model.
+    * 
+    */
+    void SetListContentL();
+    
+    /**
+    * Get category provider interface pointer
+    * 
+    */
+    MVcxNsCategoryProviderIf* CategoryProvider();
+    
+public:    
+
+    /**
+     * From MVcxNsCategoryProviderObserver
+     * Notify category's data has been updated.
+     */
+    void CategoryUpdated( TInt aIndex );
+
+    /**
+     * From MVcxNsCategoryProviderObserver 
+     * Application state or full view data needs to be updated.
+     */
+    void RefreshView();
+
+    /**
+     * From MVcxNsCategoryProviderObserver 
+     * Application state needs to be updated.
+     */
+    void HandleAppStateChangedL();
+
+    /**
+     * From MVcxNsCategoryProviderObserver
+     * Epg update is ongoing, show the notification.
+     * When downloading and parsing the xml, both parameters are 0.
+     * 
+     * @param aDownloaded count of downloaded thumbnails.
+     * @param aTotal Total count of thumbnails to be downloaded.
+     */
+    void ShowUpdatingNoteL( TBool aShow, TInt aDownloadedTbns, TInt aTotalTbns );
+
+    /**
+     * From MVcxNsCategoryProviderObserver
+     * Handle error 
+     * 
+     * @param aError Error to handle in UI
+     */
+    void HandleUpdateErrorL( TInt aError );
+    
+private:    
+    
+    /**
+     * Default constructor
+     *
+     */
+    CVcxHgVodCategoryListModelHandler( 
+                CVcxNsUiEngine& aDataProviderIf, 
+                CVcxHgVodMainView& aView, 
+                CHgScroller& aScroller,
+                CVcxHgVodCategoryListImpl& aCategoryListImpl );
+
+    /**
+     * Constructor
+     *
+     */
+    void ConstructL( );
+
+    /**
+     * Updates data of item in list.
+	 * @param aIndex Item's index
+     */
+   void UpdateListItemL( TInt aIndex );
+   
+   /**
+    * Refreshes view.
+    */
+   void RefreshViewL();
+   
+   /**
+    * From MHgScrollBufferObserver
+    * 
+    * Buffer position changed. The items between the aBufferStart 
+    * and aBufferEnd should be loaded as soon as possible.
+    * 
+    * @param aBufferStart The index of the first item in buffer.
+    * @param aBufferEnd The index of the last item in buffer.
+    * @param aDirection The direction of request.
+    */
+   void Request( TInt aBufferStart, TInt aBufferEnd, THgScrollDirection aDirection );
+       
+   /**
+    * From MHgScrollBufferObserver
+    * 
+    * Buffer position changed. The items between the aBufferStart 
+    * and aBufferEnd should be released.
+    * 
+    * @param aBufferStart The index of the first item in buffer.
+    * @param aBufferEnd The index of the last item in buffer.
+    */
+   void Release( TInt aBufferStart, TInt aBufferEnd );
+   
+private: // data
+    
+    /**
+     * Ref to Ui Engine interface.
+     * 
+     */
+    CVcxNsUiEngine& iDataProviderIf;
+    
+    /**
+     * Reference to vod main view
+     *
+     */
+    CVcxHgVodMainView& iView;
+    
+    /**
+     * Pointer to category provide if in UI engine
+     * 
+     */
+    MVcxNsCategoryProviderIf* iCategoryProvider;
+    
+    /**
+     * Pointer to array that holds categories in UI engine
+     * Not own.
+     */
+    RPointerArray<CVcxNsCategory>* iCategories;
+    
+    /**
+     * Ref to scroller
+     * 
+     */
+    CHgScroller& iScroller;
+    
+    /**
+     * Ref to list implementation
+     * 
+     */
+    CVcxHgVodCategoryListImpl& iListImpl;
+    };
+
+#endif // VCXHGVODCATEGORYLISTMODELHANDLER_H