/*

* Copyright (c) 2010 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:  Content Control example

*

*/

#ifndef __HSCONTENTCONTROLLISTBOX_H__

#define __HSCONTENTCONTROLLISTBOX_H__

//  Includes

#include <coecntrl.h>        

#include <akntreelistobserver.h>

#include <AknTabObserver.h>

#include <hscontentcontrol.h>

//  Forward declarations

class MEikCommandObserver;        

class CAknSingleStyleTreeList;

class CAknsBasicBackgroundControlContext;

class CAknNavigationDecorator;

class CAknTabGroup;

class CAknStylusPopUpMenu;

class CHsCcApiClient;

class CHsContentInfoArray;

/**

 * Container class for HsContentControlListBox

 * 

 * @class    CHsContentControlListBox HsContentControlListBox.h

 */

class CHsContentControlListBox : public CCoeControl,     

    public MAknTreeListObserver,

    public MAknTabObserver,

    public MEikMenuObserver,

    public MHsContentControl    

    {

public:

    // constructors and destructor

    /**

     * Two-phased constructor.

     */    

    static CHsContentControlListBox* NewL( 

        const TRect& aRect, 

        const CCoeControl* aParent, 

        MEikCommandObserver* aCommandObserver );

    /**

     * Two-phased constructor.

     */    

    static CHsContentControlListBox* NewLC( 

        const TRect& aRect, 

        const CCoeControl* aParent, 

        MEikCommandObserver* aCommandObserver );

    /**

     * Destructor

     */    

    ~CHsContentControlListBox();

public:

    // from CCoeControl

    /**

     * @see CCoeControl

     */            

    TInt CountComponentControls() const;

    /**

     * @see CCoeControl

     */                

    CCoeControl* ComponentControl( TInt aIndex ) const;

    /**

     * @see CCoeControl

     */                

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

    /**

     * @see CCoeControl

     */                

    void HandleResourceChange( TInt aType );

    /**

     * @see CCoeControl

     */                

    void SizeChanged();

    /**

     * @see CCoeControl

     */                

    TTypeUid::Ptr MopSupplyObject( TTypeUid aId );

private:

   // from MAknTreeListObserver

    /**

     * @see MAknTreeListObserver

     */

    TInt HandleTreeListEvent(       

        CAknTreeList& aList,

        TAknTreeItemID aItem,

        TEvent aEvent );

private:    

    // From MEikMenuObserver

    /**

     * @see MEikMenuObserver

     */

    void ProcessCommandL( TInt aCommandId );

    /**

     * @see MEikMenuObserver

     */

    void SetEmphasis( CCoeControl* aMenuControl, TBool aEmphasis );

private:

    // from MAknTabObserver

    /**

     * @see MAknTabObserver

     */    

    void TabChangedL( TInt aIndex );

private:

    // from MHsContentControl

    /**

     * @see MHsContentControl

     */

    void NotifyWidgetListChanged();

    /**

     * @see MHsContentControl

     */

    void NotifyViewListChanged();

    /**

     * @see MHsContentControl

     */

    void NotifyAppListChanged();

private:

    // new functions

    void InitializeControlsL();    

    void LayoutControls();

    void PopulateListL();

    static TInt PopulateList( TAny* aAny );

private:

    // constructors

    /**

     * C++ default constructor

     */    

    CHsContentControlListBox();

    /** 

     * 2nd phase constructor

     */

    void ConstructL( 

        const TRect& aRect, 

        const CCoeControl* aParent, 

        MEikCommandObserver* aCommandObserver );

private:

    // data

    /** Homescreen content control client, owned */

    CHsCcApiClient* iHsCcApiClient;    

    /** Callback, owned */

    CAsyncCallBack* iCallback;

    /** Popup menu, owned */

    CAknStylusPopUpMenu* iPopup;    

    /** List box, owned */

    CAknSingleStyleTreeList* iListBox;

    /** Bg context, owned */

    CAknsBasicBackgroundControlContext* iBgContext;

    /** Content info array, owned */

    CHsContentInfoArray* iArray;

    /** Navigation decorator, owned */

    CAknNavigationDecorator* iDecorator;

    /** Tab group, not owned */

    CAknTabGroup* iTabGroup;   

    /** Selected tree item */

    TAknTreeItemID iSelectedItem;    

    /** Active tab index */

    TInt iTabIndex;

    };

#endif // __HSCONTENTCONTROLLISTBOX_H__