/*

* Copyright (c) 2007 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:  Base class for video telephone sliders

*

*/

#ifndef     C_VTUISLIDERBASE_H

#define     C_VTUISLIDERBASE_H

#include    "cvtuifeaturebase.h"

#include    "mvtuicomponent.h"

#include    "mvtuicomponentstateobserver.h"

class CVtUiPopupBase;

/**

*  CVtUiSliderBase

*

*  Base class for vide telephone sliders

*

*  @since S60 v3.2

*/

class CVtUiSliderBase : public CVtUiFeatureBase, public MVtUiComponentStateObserver

    {

public:

    /**

    * Destructor

    */

    ~CVtUiSliderBase();

    /**

    * update slider itself

    */

    void UpdateSlider();

public: // from MVtUiFeature

    /**

    * @see MVtUiFeature::StartL

    */

    void StartL();

     /**

    * @see MVtUiFeature::Stop

    */

    void Stop();

     /**

    * @see MVtUiFeature::InitFeatureL

    */

    void InitFeatureL();

public: // from MVtUiComponentStateObserver

    /**

    * @see MVtUiComponentStateObserver::ComponenStateChangedL

    */

    virtual void ComponenStateChangedL();

    /**

    * @see CVtUiPopupBase::SetPermanenVisibility

    */

    void SetPermanenVisibility( TBool aPermanent );

protected:

    /*

    * Constructor

    */

    CVtUiSliderBase( CVtUiFeatureManager& aFeatureManager,

        TVtUiFeatureId aFeatureId );

    /**

    * 2nd constructor

    */

    void ConstructL();

    /**

    * Sets popup pointer.

    */

    void SetPopup( CVtUiPopupBase* aPopup );

    /**

    * Gets popup reference.

    */

    CVtUiPopupBase& Popup();

    /**

    * Gets popup const reference.

    */

    const CVtUiPopupBase& Popup() const;

private:

    // pop up base

    CVtUiPopupBase* iPopup;

    };

#endif // CVTUIPEFSLIDERBASE_H