/*

* Copyright (c) 2004, 2005 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:  Controller for navi pane for Video Telephone application.

*

*/

#ifndef CVTUINAVIPANE_H

#define CVTUINAVIPANE_H

//  INCLUDES

#include    <e32base.h>

#include    <coedef.h>

#include    <w32std.h>

#include    <coecobs.h>

// FORWARD DECLARATIONS

class CAknNavigationControlContainer;

class CAknNavigationDecorator;

class CVtUiNaviPaneControl;

class CVtUiAppUi;

// CONSTANTS

// Minimum volume.

const TInt KVtUiVolumeMinimum = 0;

// Maximum volume.

const TInt KVtUiVolumeMaximum = 10;

// CLASS DECLARATION

/**

*  Controller for navi pane for Video Telephone application.

*

*  @since Series 60 2.6

*/

class CVtUiNaviPane : public CActive

    {

    public: // Constructors and destructor

        /**

        * Two-phased constructor.

        * @param aNaviPane reference to navipane.

        * @param aAppUi application UI.

        */

        static CVtUiNaviPane* NewL(

            CAknNavigationControlContainer& aNaviPane,

            CVtUiAppUi& aAppUi );

        /**

        * C++ destructor.

        */

        ~CVtUiNaviPane();

    public: // New functions

        /**

        * Updates current speaker.

        * @param aLoudspeaker Loudspeaker if ETrue, handset otherwise.

        */

        void SetCurrentSpeaker(

            const TBool aLoudspeaker );

        /**

        * Changes muted status.

        * @param aStatus status.

        */

        void SetMuted(

            const TBool aStatus );

        /**

        * Updates call duration.

        * @param aDuration current duration.

        * @param aEnabled ETrue if call duration enabled.

        */

        void SetCallDuration(

            const TTimeIntervalSeconds& aDuration,

            const TBool aEnabled );

        /**

        * Commits changes. This method should be called after above

        * Set* methods to make sure that display is up to date.

        */

        void CommitL();

        /**

        * Gets speaker volume.

        * @param aLoudspeaker ETrue if loudspeaker, EFalse if handset.

        * @param aValue it will be updated to contain volume of the speaker.

        */

        void GetSpeakerVolume(

            const TBool aLoudspeaker,

            TInt& aValue ) const;

        /**

        * Handles resource changes.

        * @param aType type of change.

        */

        void HandleResourceChange(

            TInt aType );

    protected: // From base classes

        /**

        * Called by CActive when operation needs to be canceled.

        */

        void DoCancel();

        /**

        * Called by CActiveScheduler when operation has been

        * finished.

        */

        void RunL();

    private:

        /**

        * C++ constructor.

        * @param aNaviPane navipane instance.

        * @param aAppUi application UI.

        */

        CVtUiNaviPane(

            CAknNavigationControlContainer& aNaviPane,

            CVtUiAppUi& aAppUi );

        /**

        * Symbian constructor.

        */

        void ConstructL();

        /**

        * Pushes indicators after timeout.

        */

        void PushAfterTimeout();

        /**

        * Pushes new decorator to navi pane replacing the

        * previous one.

        * @param aNew new to replace the old one.

        */

        void PushL( CAknNavigationDecorator* aNew );

        /**

        * Returns indicator that should be used currently.

        * @return indicator to be shown.

        */

        CAknNavigationDecorator* DefaultIndicator() const;

    private:

        // Slider types in navipane

        enum TSliderControlType

                {

                ENone,

                EZoom,      // Zoom control visible

                EVolume     // Volume control visible

                };

        // Holds current slider type

        TSliderControlType iSliderType;

        // Ref to navi pane.

        CAknNavigationControlContainer& iNaviPane;

        // Ref to top navi pane element.

        CAknNavigationDecorator* iCurrent;

        // Owned controller for call duration

        CAknNavigationDecorator* iMainIndicators;

        // Reference to navi pane control.

        CVtUiNaviPaneControl* iNaviPaneControl;

        // Owned muted indicator.

        CAknNavigationDecorator* iMutedIndicator;

        // Owned timer instance.

        RTimer iTimer;

        // ETrue if call duration was enabled.

        TBool iOldCallDurationEnabled;

        // ETrue if call duration is enabled.

        TBool iCallDurationEnabled;

        // ETrue if loudspeaker, EFalse if handset.

        TBool iLoudspeaker;

        // Old microphone status.

        TBool iOldMicrophoneMuted;

        // ETrue if microphone is muted.

        TBool iMicrophoneMuted;

        // Reference to application UI.

        CVtUiAppUi& iAppUi;

    };

#endif      // CVtUiNaviPane_H

// End of File