/*

* 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:    bindings required to populate the visual item

*

*/

#ifndef _GLXBINDINGSET_H_

#define _GLXBINDINGSET_H_

#include <e32base.h>                  // Container Base Class

#include "glxbinding.h"               // holds the bindings required to populate the visual item

#include "mglxbindingobserver.h"      // Notifies that binding has changed

class TGlxMedia;                      // media item in the item pool

namespace Alf

    {

    class MulVisualItem;              // Client need to use this class to add data in data model

    }

class CGlxAttributeRequirements;      // class will set the required attribute to the medialist

/**

 * CGlxBindingSet

 * The binding set is created by the binding set factory.

 * This basically holds the bindings required to populate the visual item.

 */

NONSHARABLE_CLASS( CGlxBindingSet ) : public CGlxBinding, public MGlxBindingObserver

    {

public:

	/**

	* Two phase construction

	* @param aObserver Observes binding

	*/

    static CGlxBindingSet* NewLC( MGlxBindingObserver& aObserver );

	/**

	*Destructor

	*/

    ~CGlxBindingSet();

 	/**

	* Adds the bindings to the binding set

	* @param aBinding The binding to be added to the binding set : owned

	*/

    void AddBindingL( CGlxBinding* aBinding );

	// From CGlxBinding

    void PopulateT( Alf::MulVisualItem& aItem, const TGlxMedia& aMedia,

    TBool HasRelevantAttributes( const RArray< TMPXAttribute >& aAttributes ) const;

    TResponse HandleFocusChanged( TBool aIsGained );

    void HandleItemChangedL(const CMPXCollectionPath& aPath );

    /**

	* Adds the fetch context to medialist

	* @param aAttributeRequirement The object that sets the attribute to medialist

	*/

    void AddRequirementsL( CGlxAttributeRequirements& aAttributeRequirement,TSize aSize);

private: 

	/**

	* Constructor

	* @param aObserver Observes binding

	*/

    CGlxBindingSet( MGlxBindingObserver& aObserver );

	// From MGlxBindingObserver

    void HandleBindingChanged( const CGlxBinding& aBinding );

private:

	// Binding Observer

    MGlxBindingObserver& iObserver;

	// Array of Binding-Bindingset

    RPointerArray< CGlxBinding > iBindings;

    };

#endif // _GLXBINDINGSET_H_