/*

* 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 service view functionality implementation*

*/

// Version : %version: 5 %

#ifndef VCXHGVODSERVICELISTIMPL_H

#define VCXHGVODSERVICELISTIMPL_H

#include "vcxhgvodlistimplbase.h"

#include "vcxhgvodmainviewcontainer.h"

class CHgScroller;

class CVcxHgVodMainView;

class CVcxHgVodMainViewContainer;

class CVcxHgVodServiceListModelHandler;

class CVcxNsUiEngine;

// CLASS DECLARATION

/**

 *  Service list implementation

 *  This class handles service view list functionality.

 *

 *  @code

 *   

 *  @endcode

 *

 *  @lib vcxhgvodui.lib

 *  @since S60 v5.0

 */

class CVcxHgVodServiceListImpl : public CVcxHgVodListImplBase 

    {

public:

    /**

     * Two-phased constructor.

     * @param aScroller UI component responsible of drawing the information

     * @param aDataProviderIf Reference to UI engine

     * @param aView Reference to main view

     * @return Pointer to newly created instance

     */

    static CVcxHgVodServiceListImpl* NewL(

            CHgScroller& aScroller, 

            CVcxNsUiEngine& aDataProviderIf,

            CVcxHgVodMainView& aView );

    /**

     * Two-phased constructor.

     * @param aScroller UI component responsible of drawing the information

     * @param aDataProviderIf Reference to UI engine

     * @param aView Reference to main view

     * @return Pointer to newly created instance

     */

    static CVcxHgVodServiceListImpl* NewLC( 

            CHgScroller& aScroller, 

            CVcxNsUiEngine& aDataProviderIf,

            CVcxHgVodMainView& aView );

    /**

    * Destructor.

    */

    virtual ~CVcxHgVodServiceListImpl();

    /**

     * Activate menu pane items before displaying menu

     * 

     * @param aMenuPane Pointer to menu pane

     *

     */

    void ActivateMenuPaneItemsL( CEikMenuPane* aMenuPane, TInt aResourceId );

public: //From CVcxHgVodListImplBase

    /**

     * Handle user command

     * @param aCommand Command to handle

     */

    void HandleCommandL( TInt aCommand );

    /**

    * Activate model

    * 

    */

    void DoActivateL();

    /**

    * Deactivate model

    * 

    */

    void DoDeactivate();

    /**

    * HandleKeyEventL 

    */

    TKeyResponse HandleKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aType );

    /**

     * Handles item opening. 

     */

    void HandleOpenL( TInt aIndex );

    /**

     * Handles selection changes.

     */

    void HandleSelectL( TInt aIndex );

    /**

    * CheckSoftkeysL 

    */

    void CheckSoftkeysL();

    /**

    * Get help context.

    *

    * @param aContext context

    */

    void GetHelpContext( TCoeHelpContext& aContext ) const;

    /**

     * Update title pane text for services view.

     */

    void UpdateTitlePaneL();

public:

    /**

     * Refresh view contents 

     *

     */

    void Refresh();

private:    

    /**

     * Default constructor

     * @param aListWidget List widget

     * @param aView Main view

     */

    CVcxHgVodServiceListImpl( CHgScroller& aScroller,

                              CVcxNsUiEngine& aDataProviderIf,

                              CVcxHgVodMainView& aView );

    /**

     * 

     * @param aDataProviderIf

     * @param aAlfEnv

     */

    void ConstructL( CVcxNsUiEngine& aDataProviderIf );

    /**

     * Check if list item is removable.

     * @param aIndex

     * @return ETrue if feed can be removed,

     * otherwise EFalse

     */

    TBool FeedRemovable( TInt aIndex ); 

    /**

     * Remove feed if user accepts.

     * @param aIndex Indexfrom where feed is removed

     *

     */

    void RemoveFeedL( TInt aIndex );

    /**

     * Check if some feed has been selected for moving

     * @return ETrue if move operation is unfinished,

     *         otherwise EFalse.

     */

    TBool IsMoving() const;

    /**

     * Start moving feed.

     */

    void StartMoveL();

    /**

     * Stop moving. Move item to selected index.

     * @param aSave ETrue if item is moved to new position in list

     *              EFalse if move operation is cancelled.

     */

    void StopMovingL( TBool aSave );

    /**

     * Check, is there any video services.

     * @return Is there any video services,

     *         ETrue if there's at least one.

     */

    TBool HasVideoServicesL();

private: // data

    /**

     * List widget model handler

     * Own.

     */

    CVcxHgVodServiceListModelHandler* iModelHandler;

    /**

     * Flag that indicates is a service being moved.

     */

    TBool iMoving;

    /**

     * Source item index for move operation.

     */

    TInt iSource;

    /**

     * Target item index for move operation.

     */

    TInt iTarget;

    };

#endif // VCXHGVODSERVICELISTIMPL_H