src/api/supports.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 supports.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_media_s.h"
  30 #include "_quvi_playlist_s.h"
  31 /* -- */
  32 #include "misc/match_playlist_script.h"
  33 #include "misc/match_media_script.h"
  34
  35 static QuviBoolean _supports_playlist(_quvi_t q, const gchar *url,
  36                                       const QuviSupportsMode mode)
  37 {
  38   _quvi_playlist_t qp = NULL;
  39
  40   q->status.rc = m_match_playlist_script(q, &qp, url,
  41                                          (mode == QUVI_SUPPORTS_MODE_OFFLINE)
  42                                          ? QM_MATCH_PS_SUPPORTED_OFFLINE
  43                                          : QM_MATCH_PS_SUPPORTED_ONLINE,
  44                                          NULL);
  45   if (qp != NULL)
  46     {
  47       quvi_playlist_free((quvi_playlist_t) qp);
  48       qp = NULL;
  49     }
  50   return (quvi_ok(q));
  51 }
  52
  53 static QuviBoolean _supports_media(_quvi_t q, const gchar *url,
  54                                    const QuviSupportsMode mode)
  55 {
  56   _quvi_media_t qm = NULL;
  57
  58   q->status.rc = m_match_media_script(q, &qm, url,
  59                                       (mode == QUVI_SUPPORTS_MODE_OFFLINE)
  60                                       ? QM_MATCH_MS_SUPPORTED_OFFLINE
  61                                       : QM_MATCH_MS_SUPPORTED_ONLINE,
  62                                       NULL);
  63   if (qm != NULL)
  64     {
  65       quvi_media_free((quvi_media_t) qm);
  66       qm = NULL;
  67     }
  68   return (quvi_ok(q));
  69 }
  70
  71 /** @brief Check whether the URL is supported
  72
  73 Check if any of the scripts accepts the URL. Both offline and online
  74 checking is supported.
  75
  76 @note
  77  - Offline check will fail with most @ref sh_url
  78  - Online check will resolve @ref sh_url
  79
  80 Type may be a combination.
  81
  82 @code
  83 quvi_supports(q, URL, QUVI_SUPPORTS_OFFLINE,
  84               QUVI_SUPPORTS_TYPE_PLAYLIST | QUVI_SUPPORTS_TYPE_MEDIA);
  85 @endcode
  86
  87 @ingroup convenience
  88 */
  89 QuviBoolean quvi_supports(quvi_t handle, const char *url,
  90                           QuviSupportsMode mode, QuviSupportsType type)
  91 {
  92   QuviBoolean found;
  93   _quvi_t q;
  94
  95   /* If G_DISABLE_CHECKS is defined then the check is not performed. */
  96   g_return_val_if_fail(handle != NULL, QUVI_FALSE);
  97   g_return_val_if_fail(url != NULL, QUVI_FALSE);
  98
  99   q = (_quvi_t) handle;
 100   q->status.rc = QUVI_OK;
 101   found = QUVI_FALSE;
 102
 103   if (type & QUVI_SUPPORTS_TYPE_PLAYLIST)
 104     found = _supports_playlist(q, url, mode);
 105
 106   if (q->status.rc == QUVI_OK || q->status.rc == QUVI_ERROR_NO_SUPPORT)
 107     {
 108       if (type & QUVI_SUPPORTS_TYPE_MEDIA)
 109         found = _supports_media(q, url, mode);
 110     }
 111   return (found);
 112 }
 113
 114 /* vim: set ts=2 sw=2 tw=72 expandtab: */