+/*
+ * This file is part of DisOrder
+ * Copyright (C) 2008 Richard Kettlewell
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+/** @file disobedience/playlists.c
+ * @brief Playlist for Disobedience
+ *
+ */
+#include "disobedience.h"
+
+static void playlists_updated(void *v,
+ const char *err,
+ int nvec, char **vec);
+
+/** @brief Current list of playlists or NULL */
+char **playlists;
+
+/** @brief Count of playlists */
+int nplaylists;
+
+/** @brief Schedule an update to the list of playlists */
+static void playlists_update(const char attribute((unused)) *event,
+ void attribute((unused)) *eventdata,
+ void attribute((unused)) *callbackdata) {
+ disorder_eclient_playlists(client, playlists_updated, 0);
+}
+
+/** @brief qsort() callback for playlist name comparison */
+static int playlistcmp(const void *ap, const void *bp) {
+ const char *a = *(char **)ap, *b = *(char **)bp;
+ const char *ad = strchr(a, '.'), *bd = strchr(b, '.');
+ int c;
+
+ /* Group owned playlists by owner */
+ if(ad && bd) {
+ const int adn = ad - a, bdn = bd - b;
+ if((c = strncmp(a, b, adn < bdn ? adn : bdn)))
+ return c;
+ /* Lexical order within playlists of a single owner */
+ return strcmp(ad + 1, bd + 1);
+ }
+
+ /* Owned playlists after shared ones */
+ if(ad) {
+ return 1;
+ } else if(bd) {
+ return -1;
+ }
+
+ /* Lexical order of shared playlists */
+ return strcmp(a, b);
+}
+
+/** @brief Called with a new list of playlists */
+static void playlists_updated(void attribute((unused)) *v,
+ const char *err,
+ int nvec, char **vec) {
+ if(err) {
+ playlists = 0;
+ nplaylists = -1;
+ /* Probably means server does not support playlists */
+ } else {
+ playlists = vec;
+ nplaylists = nvec;
+ qsort(playlists, nplaylists, sizeof (char *), playlistcmp);
+ }
+ /* Tell our consumers */
+ event_raise("playlists-updated", 0);
+}
+
+/** @brief Initialize playlist support */
+void playlists_init(void) {
+ /* We re-get all playlists upon any change... */
+ event_register("playlist-created", playlists_update, 0);
+ event_register("playlist-modified", playlists_update, 0);
+ event_register("playlist-deleted", playlists_update, 0);
+ /* ...and on reconnection */
+ event_register("log-connected", playlists_update, 0);
+ /* ...and from time to time */
+ event_register("periodic-slow", playlists_update, 0);
+ /* ...and at startup */
+ playlists_update(0, 0, 0);
+}
+
+/*
+Local Variables:
+c-basic-offset:2
+comment-column:40
+fill-column:79
+indent-tabs-mode:nil
+End:
+*/
~mdw / disorder / commitdiff