/*

* Copyright (c) 2005-2006 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:  Location System UI Server's engine component. This class serves

*                as a factory implementation for Location UI components

*

*/

// System Include

#include <aknViewAppUi.h>

// User Include

#include "locsysuiengine.h"

#include "locsettingsuiengine.h"

#include "locationsettings.h"

#include "locpossettings.h"

// ========================= MEMBER FUNCTIONS ================================

// ---------------------------------------------------------------------------

// CLocSysUiEngine::CLocSysUiEngine

// Overloaded Constructor

//

// ---------------------------------------------------------------------------

//

CLocSysUiEngine::CLocSysUiEngine( CAknViewAppUi&    aAppUi )

	:iAppUi( aAppUi )

	{	

	}

// ---------------------------------------------------------------------------

// CLocationSystemUiView::~CLocSysUiEngine

// Destructor

//

// ---------------------------------------------------------------------------

//

CLocSysUiEngine::~CLocSysUiEngine()

	{

	// Incase a Location sub-settings request was made then the Settings

	// UI engine has been created, In that case, the object and the 

	// associated resources would be freed.

	delete iSettingsEngine;

	// Incase Positioning settings request was made then the Settings UI

	// and the associated resources would be freed.

	delete iPosSettings;

	}	

// ---------------------------------------------------------------------------

// CLocSysUiEngine* CLocSysUiEngine::NewL

// Two Phase Constructor for creating the Location Settings UI engine.  

//

// @param    aAppUi			    Reference to the Application UI class.

// @return	CLocSysUiEngine*    Reference to the created object.

// ---------------------------------------------------------------------------  

//

EXPORT_C CLocSysUiEngine* CLocSysUiEngine::NewL( CAknViewAppUi&	 aAppUi )

	{

    CLocSysUiEngine* self = CLocSysUiEngine::NewLC( aAppUi );

	CleanupStack::Pop( self );

	return self;

	}

// ---------------------------------------------------------------------------

// CLocSysUiEngine* CLocSysUiEngine::NewL

// Two Phase Constructor for creating the Location Settings UI engine.

// Leaves the object on the cleanupstack.

//

// @param    aAppUi			    Reference to the Application UI class.

// @return	CLocSysUiEngine*    Reference to the created object.

// ---------------------------------------------------------------------------  

//

EXPORT_C CLocSysUiEngine* CLocSysUiEngine::NewLC( CAknViewAppUi&	aAppUi )

	{

    CLocSysUiEngine* self = new(ELeave) CLocSysUiEngine( aAppUi );

	CleanupStack::PushL( self );

    // No second phase construction required

	return self;

	}

// ---------------------------------------------------------------------------

// MLocationUI* CLocSysUiEngine::CreateSettingsUi

// Creates the sub-Settings UI and  appends it to the existing list. The ownership

// of the created object is not returned to the callee function. The object would

// be destroyed only on the destruction of the plug-in.

// Incase the object alreacdy exists then the function would return a reference to

// to the existing object.

//

// @param  aImplementationUid The Implementation UID of the sub-settings plug-in that

//                            has to be created.

// @return MLocationUI*       Reference to the sub-settings UI that has been created.

// ---------------------------------------------------------------------------

//

EXPORT_C MLocationUI* CLocSysUiEngine::CreateLocationSubSettingsUIL( 

                                                TUid    aImplementationUid )

    {

    // If the Settings engine has already been created then use the same

    // instance. If not, create a new instance

    if( !iSettingsEngine )

        {

        iSettingsEngine = CLocSettingsUiEngine::NewL( iAppUi );

        }   

    return iSettingsEngine->CreateSettingsUiL( aImplementationUid );        

    }

// ---------------------------------------------------------------------------

// MLocationUI* CLocSysUiEngine::CreatePositioningSettingsUIL

// Creates an instance of Postioning Settings UI. The ownership

// of the created object is not returned to the callee function. The object would

// be destroyed only on the destruction of the plug-in.

// Incase the object alreacdy exists then the function would return a reference to

// to the existing object.

//

// @return MLocationUI*       Reference to the Positioning UI that has been created.         

// ---------------------------------------------------------------------------

//

EXPORT_C MLocationUI* CLocSysUiEngine::CreatePositioningSettingsUIL()

    {

    // If the Postioning Settings UI instance already exists then use the same

    // If not, create a new instance

    if( !iPosSettings )

        {

        iPosSettings = CLocPosSettings::NewL();

        }

    return iPosSettings;

    }