/*

* Copyright (c) 2000 - 2001 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

*

*/

#include "nw_hed_contextvisitori.h"

#include "nw_hed_context.h"

#include "BrsrStatusCodes.h"

/* ------------------------------------------------------------------------- *

   class definition

 * ------------------------------------------------------------------------- */

/* ------------------------------------------------------------------------- */

const

NW_HED_ContextVisitor_Class_t NW_HED_ContextVisitor_Class = {

  { /* NW_Object_Core        */

    /* super                 */ &NW_Object_Dynamic_Class,

    /* queryInterface        */ _NW_Object_Base_QueryInterface

  },

  { /* NW_Object_Base        */

    /* interfaceList         */ NULL

  },

  { /* NW_Object_Dynamic     */

    /* instanceSize          */ sizeof (NW_HED_ContextVisitor_t),

    /* construct             */ _NW_HED_ContextVisitor_Construct,

    /* destruct              */ NULL

  },

  { /* NW_HED_ContextVisitor */

    /* unused                */ 0

  }

};

/* ------------------------------------------------------------------------- *

   virtual methods

 * ------------------------------------------------------------------------- */

/* ------------------------------------------------------------------------- */

TBrowserStatusCode

_NW_HED_ContextVisitor_Construct (NW_Object_Dynamic_t* dynamicObject,

                                  va_list* argp)

{

  NW_HED_ContextVisitor_t* thisObj;

  /* for convenience */

  thisObj = NW_HED_ContextVisitorOf (dynamicObject);

  /* initialize the member variables */

  thisObj->context = va_arg (*argp, NW_HED_Context_t*);

  NW_ASSERT (thisObj->context != NULL);

  NW_ASSERT (NW_Object_IsInstanceOf (thisObj->context, &NW_HED_Context_Class));

  thisObj->current = 0;

  /* successful completion */

  return KBrsrSuccess;

}

/* ------------------------------------------------------------------------- *

   final methods

 * ------------------------------------------------------------------------- */

/* ------------------------------------------------------------------------- */

const NW_HED_Context_Variable_t*

NW_HED_ContextVisitor_NextVariable (NW_HED_ContextVisitor_t* thisObj)

{

  const NW_HED_Context_Variable_t* var;

  NW_ASSERT (thisObj);

  var = NW_HED_Context_GetEntry (thisObj->context, thisObj->current);

  if (var) {

    thisObj->current++;

  }

  return var;

}

/* ------------------------------------------------------------------------- */

void

NW_HED_ContextVisitor_Reset (NW_HED_ContextVisitor_t* thisObj)

{

  NW_ASSERT (thisObj);

  thisObj->current = 0;

}

/* ------------------------------------------------------------------------- *

   convenience functions

 * ------------------------------------------------------------------------- */

/* ------------------------------------------------------------------------- */

TBrowserStatusCode

NW_HED_ContextVisitor_Initialize (NW_HED_ContextVisitor_t* thisObj,

                                  const NW_HED_Context_t* context)

{

  return NW_Object_Initialize (&NW_HED_ContextVisitor_Class, thisObj, context);

}

/* ------------------------------------------------------------------------- */

NW_HED_ContextVisitor_t*

NW_HED_ContextVisitor_New (NW_HED_Context_t* context)

{

  return (NW_HED_ContextVisitor_t*)

    NW_Object_New (&NW_HED_ContextVisitor_Class, context);

}