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1 /*
2 * Container / Playlist database adapter class for DMAP sharing
3 *
4 * Copyright (C) 2008 W. Michael Petullo <mike@flyn.org>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * The Rhythmbox authors hereby grant permission for non-GPL compatible
12 * GStreamer plugins to be used and distributed together with GStreamer
13 * and Rhythmbox. This permission is above and beyond the permissions granted
14 * by the GPL license by which Rhythmbox is covered. If you modify this code
15 * you may extend this exception to your version of the code, but you are not
16 * obligated to do so. If you do not wish to do so, delete this exception
17 * statement from your version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
27 *
28 */
29
30 #include "rb-playlist-manager.h"
31 #include "rb-playlist-source.h"
32 #include "rb-dmap-container-db-adapter.h"
33 #include "rb-daap-container-record.h"
34
35 #include <libdmapsharing/dmap.h>
36
37 static guint next_playlist_id = 2;
38
39 struct RBDMAPContainerDbAdapterPrivate {
40 RBPlaylistManager *playlist_manager;
41 };
42
43 typedef struct ForeachAdapterData {
44 gpointer data;
45 GHFunc func;
46 } ForeachAdapterData;
47
48 static guint find_by_id (gconstpointer a, gconstpointer b)
49 {
50 return GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (a), "daap_id")) != GPOINTER_TO_UINT (b);
51 }
52
53 static DMAPContainerRecord *
54 rb_dmap_container_db_adapter_lookup_by_id (DMAPContainerDb *db, guint id)
55 {
56 gchar *name;
57 GList *playlists;
58 DMAPContainerRecord *fnval = NULL;
59
60 playlists = rb_playlist_manager_get_playlists (RB_DMAP_CONTAINER_DB_ADAPTER (db)->priv->playlist_manager);
61
62 if (playlists != NULL && playlists->data != NULL) {
63 GList *result;
64 result = g_list_find_custom (playlists, GINT_TO_POINTER (id), (GCompareFunc) find_by_id);
65 if (result != NULL && result->data != NULL) {
66 RBPlaylistSource *source;
67 source = RB_PLAYLIST_SOURCE (result->data);
68 g_object_get (source, "name", &name, NULL);
69 fnval = DMAP_CONTAINER_RECORD (rb_daap_container_record_new (name, source));
70 }
71 }
72
73 g_list_free (playlists);
74
75 return fnval;
76 }
77
78 static void
79 foreach_adapter (RBPlaylistSource *entry, gpointer data)
80 {
81 gchar *name;
82 DMAPContainerRecord *record;
83 ForeachAdapterData *foreach_adapter_data;
84
85 foreach_adapter_data = data;
86 g_object_get (entry, "name", &name, NULL);
87 record = DMAP_CONTAINER_RECORD (rb_daap_container_record_new (name, entry));
88
89 foreach_adapter_data->func (GINT_TO_POINTER (rb_daap_container_record_get_id (record)),
90 record,
91 foreach_adapter_data->data);
92
93 g_object_unref (record);
94 }
95
96 static void
97 rb_dmap_container_db_adapter_foreach (DMAPContainerDb *db,
98 GHFunc func,
99 gpointer data)
100 {
101 ForeachAdapterData *foreach_adapter_data;
102 GList *playlists;
103
104 playlists = rb_playlist_manager_get_playlists (RB_DMAP_CONTAINER_DB_ADAPTER (db)->priv->playlist_manager);
105
106 foreach_adapter_data = g_new (ForeachAdapterData, 1);
107 foreach_adapter_data->data = data;
108 foreach_adapter_data->func = func;
109 g_list_foreach (playlists, (GFunc) foreach_adapter, foreach_adapter_data);
110
111 g_list_free (playlists);
112 g_free (foreach_adapter_data);
113 }
114
115 static gint64
116 rb_dmap_container_db_adapter_count (DMAPContainerDb *db)
117 {
118 gint64 count = 0;
119 GList *playlists = rb_playlist_manager_get_playlists (
120 RB_DMAP_CONTAINER_DB_ADAPTER (db)->priv->playlist_manager);
121 count = g_list_length (playlists);
122 g_list_free (playlists);
123 return count;
124 }
125
126 static void
127 rb_dmap_container_db_adapter_init (RBDMAPContainerDbAdapter *db)
128 {
129 db->priv = RB_DMAP_CONTAINER_DB_ADAPTER_GET_PRIVATE (db);
130 }
131
132 static void
133 rb_dmap_container_db_adapter_class_init (RBDMAPContainerDbAdapterClass *klass)
134 {
135 g_type_class_add_private (klass, sizeof (RBDMAPContainerDbAdapterPrivate));
136 }
137
138 static void
139 rb_dmap_container_db_adapter_class_finalize (RBDMAPContainerDbAdapterClass *klass)
140 {
141 }
142
143 static void
144 rb_dmap_container_db_adapter_interface_init (gpointer iface, gpointer data)
145 {
146 DMAPContainerDbIface *dmap_db = iface;
147
148 g_assert (G_TYPE_FROM_INTERFACE (dmap_db) == DMAP_TYPE_CONTAINER_DB);
149
150 dmap_db->lookup_by_id = rb_dmap_container_db_adapter_lookup_by_id;
151 dmap_db->foreach = rb_dmap_container_db_adapter_foreach;
152 dmap_db->count = rb_dmap_container_db_adapter_count;
153 }
154
155 G_DEFINE_DYNAMIC_TYPE_EXTENDED (RBDMAPContainerDbAdapter,
156 rb_dmap_container_db_adapter,
157 G_TYPE_OBJECT,
158 0,
159 G_IMPLEMENT_INTERFACE_DYNAMIC (DMAP_TYPE_CONTAINER_DB,
160 rb_dmap_container_db_adapter_interface_init))
161
162 static void
163 assign_id (RBPlaylistManager *mgr,
164 RBSource *source)
165 {
166 if (g_object_get_data (G_OBJECT (source), "daap_id") == NULL)
167 g_object_set_data (G_OBJECT (source), "daap_id", GUINT_TO_POINTER (next_playlist_id++));
168 }
169
170 RBDMAPContainerDbAdapter *
171 rb_dmap_container_db_adapter_new (RBPlaylistManager *playlist_manager)
172 {
173 RBDMAPContainerDbAdapter *db;
174 GList *playlists;
175
176 playlists = rb_playlist_manager_get_playlists (playlist_manager);
177
178 /* These IDs are DAAP-specific, so they are not a part of the
179 * general-purpose RBPlaylistSource class:
180 */
181 if (playlists != NULL && playlists->data != NULL) {
182 GList *l;
183 for (l = playlists; l != NULL; l = l->next) {
184 assign_id (playlist_manager, RB_SOURCE (l->data));
185 }
186 }
187
188 g_signal_connect (G_OBJECT (playlist_manager),
189 "playlist_created",
190 G_CALLBACK (assign_id),
191 NULL);
192
193 g_signal_connect (G_OBJECT (playlist_manager),
194 "playlist_added",
195 G_CALLBACK (assign_id),
196 NULL);
197
198 db = RB_DMAP_CONTAINER_DB_ADAPTER (g_object_new (RB_TYPE_DMAP_CONTAINER_DB_ADAPTER,
199 NULL));
200
201 db->priv->playlist_manager = playlist_manager;
202
203 return db;
204 }
205
206 void
207 _rb_dmap_container_db_adapter_register_type (GTypeModule *module)
208 {
209 rb_dmap_container_db_adapter_register_type (module);
210 }