/*

* Copyright (c) 2009, 2010 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:  CDialerToolbarContainer replaces the standard S60 toolbar

*               in the Dialer layout in the Easy dialing mode. It's 

*               responsible of the toolbar layout and logic, but not of the 

*               contents which are provided by an instance of 

*               MPhoneDialerController.

*

*/

#ifndef CDIALERTOOLBAR_H_

#define CDIALERTOOLBAR_H_

// INCLUDES

#include <mphonedialercontroller.h>

#include "cdialercontainerbase.h"

// FORWARD DECLARATIONS

class CAknButton;

// CLASS DECLARATION

NONSHARABLE_CLASS(CDialerToolbarContainer) : 

    public CDialerContainerBase, 

    private MCoeForegroundObserver

    {

public: // constructor and destructor

    static CDialerToolbarContainer* NewL( 

            CCoeControl& aParent, 

            MPhoneDialerController* aContentProvider );

    virtual ~CDialerToolbarContainer();

private: // constructors

    CDialerToolbarContainer( 

            CCoeControl& aParent,

            MPhoneDialerController* aContentProvider );

    void ConstructL();

public: // new methods

    /**

     * Set provider of toolbar button functions

     */

    void SetContentProviderL( MPhoneDialerController* aProvider );

    /**

     * Update states of all toolbar buttons.

     */

    void UpdateButtonStates();

protected: // from CDialerContainerBase

    virtual void SetVariety();

    virtual void SetLayout();

protected: // from CCoeControl

    TInt CountComponentControls() const;

    CCoeControl* ComponentControl( TInt aIndex ) const;

    void HandlePointerEventL( const TPointerEvent& aPointerEvent );

private: // from MCoeControlObserver

    /**

     * Callback for handling button presses.

     */

    void HandleControlEventL( CCoeControl* aControl, TCoeEvent aEventType );

private: // from MCoeForegroundObserver

    void HandleGainingForeground();

    void HandleLosingForeground();

private: // new methods

    /**

     * Create toolbar button instances and fill them with states

     * according the data given by the content provider.

     */

    void CreateButtonsL();

    /**

     * Delete all buttons and free the memory reserved for button data.

     */

    void DeleteButtons();

    /**

     * Create and add new button state.

     */

    void AddButtonStateL( TInt aButtonIndex, MPhoneDialerController::CButtonData& aButtonData );

    /**

     * Get command ID for the given button in it's current state.

     */

    TInt ButtonCommand( const CAknButton& aButton ) const;

    /**

     * Set layout for one button.

     * @param   aButtonIdx  Index of the button to be laid out.

     * @param   aPos        Position (top-left corned) where button is to be placed.

     * @return  Position of the next button.

     */

    TPoint LayoutButton( TInt aButtonIdx, TPoint aPos );

private: // data

    /** Provides toolbar button data. Not owned. */

    MPhoneDialerController* iContentProvider;

    /** Button objects. Owned. */

    RPointerArray< CAknButton > iButtons;

    /** 

     * Maps buttons states to command IDs. 

     * First index is the button index, second index is the state index.

     */

    RArray< RArray<TInt> > iButtonCommands;

    /** The last received pointer event. */

    TPointerEvent iLatestPointerEvent;

    };

#endif /* CDIALERTOOLBAR_H_ */