/* libquvi

 * Copyright (C) 2013  Toni Gundogdu <legatvs@gmail.com>

 *

 * This file is part of libquvi <http://quvi.sourceforge.net/>.

 *

 * This library is free software: you can redistribute it and/or

 * modify it under the terms of the GNU Affero General Public

 * License as published by the Free Software Foundation, either

 * version 3 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU Affero General Public License for more details.

 *

 * You should have received a copy of the GNU Affero General

 * Public License along with this library.  If not, see

 * <http://www.gnu.org/licenses/>.

 */

/** @file subtitle_type_next.c */

#include "config.h"

#include <glib.h>

#include "quvi.h"

/* -- */

#include "_quvi_s.h"

#include "_quvi_subtitle_s.h"

/** @brief Traverse to next available @ref sub_type

@return NULL if none was found

@sa @ref parse_subtitle

@ingroup @ref subprop

*/

const quvi_subtitle_type_t quvi_subtitle_type_next(quvi_subtitle_t handle)

{

  _quvi_subtitle_t qsub = (_quvi_subtitle_t) handle;

  /* If G_DISABLE_CHECKS is defined then the check is not performed. */

  g_return_val_if_fail(handle != NULL, QUVI_FALSE);

  qsub->curr.type = (qsub->curr.type != NULL)

                    ? g_slist_next(qsub->curr.type)

                    : qsub->types;

  return ((qsub->curr.type != NULL)

          ? qsub->curr.type->data

          : NULL);

}

/* vim: set ts=2 sw=2 tw=72 expandtab: */