/*

* Copyright (c) 2008-2009 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:    CoeControl utility for monitoring skin change

*

*/

#ifndef C_GLXSKINCHANGEMONITOR_H

#define C_GLXSKINCHANGEMONITOR_H

#include <coecntrl.h>

#include <AknUtils.h>

#include "mglxskinchangeobserver.h"

/**

 *  CGlxSkinChangeMonitor

 *

 *  Utility to handle skin changes.

 *

 *  @lib 

 *

 *  @internal reviewed 

 */

class CGlxSkinChangeMonitor : public CCoeControl

	{

	/* for unit testing */

	friend class t_glxskinchangemonitor;

	friend class t_cglxhuiutility;

	public: // the API

	    virtual ~CGlxSkinChangeMonitor();

	    /**

         * Two-phased constructor.

         *

         * @return Pointer

         */

		static CGlxSkinChangeMonitor* NewL();

	private:	// Implementation

	    /**

	     * C++ constructor 

	     * @param aEnv the Hui environment

	     */

	    CGlxSkinChangeMonitor();

	    /**

        * Symbian 2nd phase constructor

        */

	    void ConstructL();

    public:

		/**

		 * Handles resource change. From CCoeControl

		 *

		 * @ref CCoeControl::HandleResourceChange

		 */ 

		void HandleResourceChange( TInt aType );

		/**

		 *Add MGlxSkinChangeObserver to skin change observers array. 

		 *@param aObserver Reference of the MGlxSkinChangeObserver.

		 */

		 void AddSkinChangeObserverL( MGlxSkinChangeObserver& aObserver );

		/**

		 *Remove MGlxSkinChangeObserver from skin change observers array. 

		 *@param aObserver Reference of the MGlxSkinChangeObserver.

		 */

		 void RemoveSkinChangeObserver( MGlxSkinChangeObserver& aObserver );

    private:	

    	/**

         * Observers that will be notified if skin is changed

         * owned

         */

        RPointerArray<MGlxSkinChangeObserver> iSkinChangeObservers; 

	};

#endif // C_GLXUIUTILITYCOECONTROL_H