/*

* Copyright (c) 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:  CAiEcomObserver class implementation.

 *

*/

#ifndef AIECOMOBSERVER_H

#define AIECOMOBSERVER_H

// System includes

#include <e32base.h>	

#include <e32std.h>		

#include <ecom/ecom.h>

// User includes

// Class declaration

/**

 * 

 * Active Idle ECom observer

 *

 * @ingroup group_aifw

 * @lib aifw.lib 

 * @since S60 5.2 

 */

class MAiEcomObserver

    {

public:

    /**    

    * This is called when the IdleFw detects a change in ECom

    * plugin registrations (adding, removing or upgrading ECOM-plugins).

    * 

    * @since S60 5.2   

    */

    virtual void NotifyEcomRegistryChanged() = 0;    

    };

// Class declaration

/**

 * 

 * Active Idle ECom observer

 * 

 * @ingroup group_aifw

 * @lib aifw.lib 

 * @since S60 5.2 

 */

NONSHARABLE_CLASS( CAiEcomObserver ) : public CActive

    {

public:

    // constructors and destructor

    // Two-phased constructor.

    static CAiEcomObserver* NewL();

    // Two-phased constructor.

    static CAiEcomObserver* NewLC();

    // Cancel and destroy

    ~CAiEcomObserver();

public: 

    // New functions

    /**

     * Adds a new observer for plugin notifications.

     * @param aObserver Observer pointer.

     */

    void AddObserverL( MAiEcomObserver* aObserver );

private:

    // new functions

    // Start observing ecom notification

    void StartObserving();

    // Notifies observers

    void NotifyObservers();

private:

    // constructors

    /**

     * C++ default constructor

     */

    CAiEcomObserver();

    /**

     * 2nd phase constructor

     */

    void ConstructL();

private: 

    // from CActive

    /**

     * @see CActive

     */

    void RunL();

    /**

     * @see CActive

     */

    void DoCancel();

private:

    // data

    /** ECom session handle (must be closed, not deleted), Own */

    REComSession iEComSession;

    /** Own: Array of Observers - pointer not owned */

    RPointerArray< MAiEcomObserver > iObservers;

private:

    // friend classes

#ifdef _AIFW_UNIT_TEST

    friend class UT_AiEcomObserver;

#endif

    };

#endif // AIECOMOBSERVER_H

// End of file