src/api/playlist_media_next.c

   1 /* libquvi
   2  * Copyright (C) 2012  Toni Gundogdu <legatvs@gmail.com>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  17  * 02110-1301  USA
  18  */
  19
  20 /** @file playlist_media_next.c */
  21
  22 #include "config.h"
  23
  24 #include <glib.h>
  25
  26 #include "quvi.h"
  27 /* -- */
  28 #include "_quvi_s.h"
  29 #include "_quvi_playlist_s.h"
  30
  31 /** @brief Traverse to next available playlist media
  32 @return QUVI_TRUE if succeeded, otherwise QUVI_FALSE
  33 @sa @ref parse_playlist
  34 @ingroup playlistprop
  35 */
  36 QuviBoolean quvi_playlist_media_next(quvi_playlist_t handle)
  37 {
  38   _quvi_playlist_t qp = (_quvi_playlist_t) handle;
  39
  40   /* If G_DISABLE_CHECKS is defined then the check is not performed. */
  41   g_return_val_if_fail(handle != NULL, QUVI_FALSE);
  42
  43   qp->curr.media = (qp->curr.media != NULL)
  44                    ? g_slist_next(qp->curr.media)
  45                    : qp->media;
  46
  47   return ((qp->curr.media != NULL)
  48           ? QUVI_TRUE
  49           : QUVI_FALSE);
  50 }
  51
  52 /* vim: set ts=2 sw=2 tw=72 expandtab: */