src/api/script_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 script_next.c */
  21
  22 #include "config.h"
  23
  24 #include <glib.h>
  25
  26 #include "quvi.h"
  27 /* -- */
  28 #include "_quvi_s.h"
  29
  30 /** @cond NODOC */
  31 #ifdef _1
  32 #define _W "libquvi: %s: %d"
  33 #endif
  34 /** @endcond */
  35
  36 /** @brief Traverse to next media script
  37 @return QUVI_TRUE if succeeded, otherwise QUVI_FALSE
  38 @ingroup script
  39 */
  40 QuviBoolean quvi_script_next(quvi_t handle, QuviScriptType type)
  41 {
  42   QuviBoolean r;
  43   GSList *l;
  44   _quvi_t q;
  45
  46   q = (_quvi_t) handle;
  47
  48   /* If G_DISABLE_CHECKS is defined then the check is not performed. */
  49   g_return_val_if_fail(handle != NULL, QUVI_FALSE);
  50
  51   switch (type)
  52     {
  53     case QUVI_SCRIPT_TYPE_PLAYLIST:
  54       l = q->scripts.playlist;
  55       break;
  56
  57     default:
  58 #ifdef _1
  59       g_warning(_W, __func__, (gint) type);
  60 #endif
  61     case QUVI_SCRIPT_TYPE_MEDIA:
  62       l = q->scripts.media;
  63       break;
  64
  65     case QUVI_SCRIPT_TYPE_SCAN:
  66       l = q->scripts.scan;
  67       break;
  68     }
  69
  70   r = QUVI_FALSE;
  71
  72   switch (type)
  73     {
  74     case QUVI_SCRIPT_TYPE_PLAYLIST:
  75       q->scripts.curr.playlist = (q->scripts.curr.playlist != NULL)
  76                                  ? g_slist_next(q->scripts.curr.playlist)
  77                                  : l;
  78       r = (q->scripts.curr.playlist != NULL)
  79           ? QUVI_TRUE
  80           : QUVI_FALSE;
  81       break;
  82
  83     case QUVI_SCRIPT_TYPE_MEDIA:
  84     default:
  85       q->scripts.curr.media = (q->scripts.curr.media != NULL)
  86                               ? g_slist_next(q->scripts.curr.media)
  87                               : l;
  88       r = (q->scripts.curr.media != NULL)
  89           ? QUVI_TRUE
  90           : QUVI_FALSE;
  91       break;
  92
  93     case QUVI_SCRIPT_TYPE_SCAN:
  94       q->scripts.curr.scan = (q->scripts.curr.scan != NULL)
  95                              ? g_slist_next(q->scripts.curr.scan)
  96                              : l;
  97       r = (q->scripts.curr.scan != NULL)
  98           ? QUVI_TRUE
  99           : QUVI_FALSE;
 100       break;
 101     }
 102
 103   return (r);
 104 }
 105
 106 #undef _W
 107
 108 /* vim: set ts=2 sw=2 tw=72 expandtab: */