/*

* Copyright (c) 2002-2004 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:  Popup control adapter

*

*/

#ifndef __XNPOPUPCONTROLADAPTER_H__

#define __XNPOPUPCONTROLADAPTER_H__

// System includes

#include <e32base.h>

#include <eikmobs.h>

// User includes

#include "xncontroladapter.h"

#include "xnmenu.h"

// Forward declarations

class CXnNodePluginIf;

class CXnNode;

class CXnUiEngine;

class CAknStylusPopUpMenu;

// Class declaration

/**

 *  Popup Control adapter interface class

 *  

 *  @ingroup group_xnlayoutengine

 *  @lib xnlayoutengine.lib

 *  @since Series 60 5.0

 */

NONSHARABLE_CLASS( CXnPopupControlAdapter ) : public CXnControlAdapter,

    public MEikMenuObserver

    {

public:

    // Constructors and destructor

    /**

     * Two-phased constructor.

     *

     * @param aNode Node

     */

    static CXnPopupControlAdapter* NewL( CXnNodePluginIf& aNode );

    /**

     * Destructor.

     */

    ~CXnPopupControlAdapter();

private:

    // Constructors

    /**

     * C++ default constructor.

     */

    CXnPopupControlAdapter();

    /**

     * Two-phased constructor.        

     */

    void ConstructL( CXnNodePluginIf& aNode  );

private:    

    // From MEikMenuObserver

    void ProcessCommandL( TInt aCommandId );

    void SetEmphasis( CCoeControl* aMenuControl, TBool aEmphasis );

public:

    // New functions

    /*

     * Sets dynamic menuitem observer

     * 

     * @param aObserver Observer

     */

    void SetObserver( XnMenuInterface::MXnMenuObserver& aObserver );

    /*

     * Makes stylus popup menu visible

     * 

     * @param aPlugin Plugin which displays this popup

     */

    void TryDisplayingStylusPopupL( CXnNode& aPlugin );

    /*

     * Screen device change notification

     * 

     * @see CXnControlAdapter documentation

     */

    void HandleScreenDeviceChangedL();

private:

    // New functions

    void PopulateMenuL( CXnNode* aItem, CXnNode& aPlugin );                                  

    void ShowMenuL( CXnNode& aPlugin, TPoint aPosition );

    void HideMenuL();

private:

    // Data

    /** UiEngine, Not owned */

    CXnUiEngine*                        iUiEngine;

    /** Node - received in constructor, Not owned  */

    CXnNode*                            iNode;

    /** Observer, Not owned */

    XnMenuInterface::MXnMenuObserver*   iObserver;

    /** Stylus popup menu, Owned */

    CAknStylusPopUpMenu*                iStylusPopupMenu;    

    /** Stylus popup menu items, Owned */

    RPointerArray< CXnNode >            iMenuItems;

    /** Stylus popup menu command ids */

    TInt                                iCommandId;    

    /** Flag to indicate whether popup menu is shown */

    TBool                               iMenuShown;

    };

#endif // __XNPOPUPCONTROLADAPTER_H__