/*

* Copyright (c) 2008-2008 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:  Music Content Publisher Plugin interface definition

*

*/

#ifndef C_MCPPLUGIN_H

#define C_MCPPLUGIN_H

#include <e32base.h>

/**

 * The interface class for all MCP plugins

 * Plugins are responsible for updating data and actions to the Music Widget

 * and Music Suite.

 *

 * The implementator of this interface should implement Deactivate function that 

 * will be invoked when the plugin is preempted by another plugin.

 *

 * IMPORTANT NOTE: 

 * It is recommended that the plugin does not publish data while not active.

 * After calling Deactivate on the plugin it should change its state to

 * not active.

 *

 */

class CMCPPlugin : public CBase

    {

public:

    /** 

     * Triggers Deactivation Process.

     * Note: This should return immediatelly.

     *       Just a change of state variable is recommended.

     */

    virtual void Deactivate() = 0;

    /** 

     * Announces a change on the skin.

     * Note: Plugins should republish all the skinned icons.

     *       Called only on the active plugin, plugins are responsible to

     *       republish all the icons when they become active.

     */

    virtual void SkinChanged() {};

    };

#endif // C_MCPPLUGIN_H