/*

* Copyright (c) 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:  Bubble extension interface.

*

*/

#ifndef TELBUBBLEEXTENSIONINTERFACE_H

#define TELBUBBLEEXTENSIONINTERFACE_H

#include <e32base.h>

class MTelBubbleExtensionData;

class MTelBubbleExtensionInterface

    {

public:

    /**

     * Notifies that a new customizable bubble is available.

     *

     * This function is called when a new bubbleheader is created. Plugin

     * should initiate a new customization instance inside this method and

     * store the reference to the call data.

     *

     * @param aCallData Reference to call data.

     */

    virtual void StartCustomizedBubble(

            MTelBubbleExtensionData& aCallData ) = 0;

    /**

     * Notifies that a customizable bubble has been removed

     *

     * This function is called when a bubbleheader is going to be deleted.

     * Plugin should detach all customizations related to this call and

     * delete the local datas related to this call.

     *

     * @param aCallData Reference to call data.

     */

    virtual void StopCustomizedBubble(

            MTelBubbleExtensionData& aCallData ) = 0;

    /**

     * Indicates that currently bubble drawing is started.

     * Customizing is preferred to be done during this call.

     *

     * This function is called when the call bubbles are being updated.

     * The call datas are updated before this function is called. Plugin should

     * check whether any of the calls are changed so that change to the

     * customized element is needed and make the change. Doing the

     * changes during this method will prevent excess flickering and

     * redraws and therefore is suggested.

     */

    virtual void BubbleUpdating() = 0;

    };

#endif // TELBUBBLEEXTENSIONINTERFACE_H

// end of file