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10e226b3 RK |
1 | /* |
2 | * This file is part of DisOrder. | |
3 | * Copyright (C) 2006, 2007 Richard Kettlewell | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
18 | * USA | |
19 | */ | |
20 | ||
21 | #include "disobedience.h" | |
22 | ||
186f896b | 23 | /* State monitoring -------------------------------------------------------- */ |
10e226b3 RK |
24 | |
25 | static void log_connected(void *v); | |
26 | static void log_completed(void *v, const char *track); | |
27 | static void log_failed(void *v, const char *track, const char *status); | |
28 | static void log_moved(void *v, const char *user); | |
29 | static void log_playing(void *v, const char *track, const char *user); | |
30 | static void log_queue(void *v, struct queue_entry *q); | |
31 | static void log_recent_added(void *v, struct queue_entry *q); | |
32 | static void log_recent_removed(void *v, const char *id); | |
33 | static void log_removed(void *v, const char *id, const char *user); | |
34 | static void log_scratched(void *v, const char *track, const char *user); | |
35 | static void log_state(void *v, unsigned long state); | |
36 | static void log_volume(void *v, int l, int r); | |
37 | ||
38 | /** @brief Callbacks for server state monitoring */ | |
39 | const disorder_eclient_log_callbacks log_callbacks = { | |
40 | log_connected, | |
41 | log_completed, | |
42 | log_failed, | |
43 | log_moved, | |
44 | log_playing, | |
45 | log_queue, | |
46 | log_recent_added, | |
47 | log_recent_removed, | |
48 | log_removed, | |
49 | log_scratched, | |
50 | log_state, | |
51 | log_volume | |
52 | }; | |
53 | ||
186f896b RK |
54 | struct monitor { |
55 | struct monitor *next; | |
56 | unsigned long mask; | |
57 | monitor_callback *callback; | |
58 | void *u; | |
59 | }; | |
60 | ||
61 | static struct monitor *monitors; | |
10e226b3 RK |
62 | |
63 | void all_update(void) { | |
64 | playing_update(); | |
65 | queue_update(); | |
66 | recent_update(); | |
6d1302f0 | 67 | volume_update(); |
10e226b3 RK |
68 | } |
69 | ||
70 | static void log_connected(void attribute((unused)) *v) { | |
10e226b3 RK |
71 | /* Don't know what we might have missed while disconnected so update |
72 | * everything. We get this at startup too and this is how we do the initial | |
73 | * state fetch. */ | |
74 | all_update(); | |
10e226b3 RK |
75 | } |
76 | ||
77 | static void log_completed(void attribute((unused)) *v, | |
78 | const char attribute((unused)) *track) { | |
79 | playing = 0; | |
80 | playing_update(); | |
10e226b3 RK |
81 | } |
82 | ||
83 | static void log_failed(void attribute((unused)) *v, | |
84 | const char attribute((unused)) *track, | |
85 | const char attribute((unused)) *status) { | |
86 | playing = 0; | |
87 | playing_update(); | |
10e226b3 RK |
88 | } |
89 | ||
90 | static void log_moved(void attribute((unused)) *v, | |
91 | const char attribute((unused)) *user) { | |
92 | queue_update(); | |
93 | } | |
94 | ||
95 | static void log_playing(void attribute((unused)) *v, | |
96 | const char attribute((unused)) *track, | |
97 | const char attribute((unused)) *user) { | |
98 | playing = 1; | |
99 | playing_update(); | |
10e226b3 RK |
100 | /* we get a log_removed() anyway so we don't need to update_queue() from |
101 | * here */ | |
102 | } | |
103 | ||
104 | static void log_queue(void attribute((unused)) *v, | |
105 | struct queue_entry attribute((unused)) *q) { | |
106 | queue_update(); | |
107 | } | |
108 | ||
109 | static void log_recent_added(void attribute((unused)) *v, | |
110 | struct queue_entry attribute((unused)) *q) { | |
111 | recent_update(); | |
112 | } | |
113 | ||
114 | static void log_recent_removed(void attribute((unused)) *v, | |
115 | const char attribute((unused)) *id) { | |
116 | /* nothing - log_recent_added() will trigger the relevant update */ | |
117 | } | |
118 | ||
119 | static void log_removed(void attribute((unused)) *v, | |
120 | const char attribute((unused)) *id, | |
121 | const char attribute((unused)) *user) { | |
122 | queue_update(); | |
123 | } | |
124 | ||
125 | static void log_scratched(void attribute((unused)) *v, | |
126 | const char attribute((unused)) *track, | |
127 | const char attribute((unused)) *user) { | |
128 | playing = 0; | |
129 | playing_update(); | |
10e226b3 RK |
130 | } |
131 | ||
132 | static void log_state(void attribute((unused)) *v, | |
133 | unsigned long state) { | |
186f896b | 134 | const struct monitor *m; |
6d1302f0 RK |
135 | unsigned long changes = state ^ last_state; |
136 | static int first = 1; | |
137 | ||
138 | if(first) { | |
139 | changes = -1UL; | |
140 | first = 0; | |
141 | } | |
142 | D(("log_state old=%s new=%s changed=%s", | |
143 | disorder_eclient_interpret_state(last_state), | |
144 | disorder_eclient_interpret_state(state), | |
145 | disorder_eclient_interpret_state(changes))); | |
00959300 | 146 | last_state = state; |
186f896b RK |
147 | /* Tell anything that cares about the state change */ |
148 | for(m = monitors; m; m = m->next) { | |
00959300 RK |
149 | if(changes & m->mask) |
150 | m->callback(m->u); | |
186f896b | 151 | } |
10e226b3 RK |
152 | /* If the track is paused or resume then the currently playing track is |
153 | * refetched so that we can continue to correctly calculate the played so-far | |
154 | * field */ | |
155 | playing_update(); | |
156 | } | |
157 | ||
158 | static void log_volume(void attribute((unused)) *v, | |
159 | int l, int r) { | |
160 | if(volume_l != l || volume_r != r) { | |
161 | volume_l = l; | |
162 | volume_r = r; | |
6d1302f0 | 163 | volume_update(); |
10e226b3 RK |
164 | } |
165 | } | |
166 | ||
186f896b RK |
167 | void register_monitor(monitor_callback *callback, |
168 | void *u, | |
169 | unsigned long mask) { | |
170 | struct monitor *m = xmalloc(sizeof *m); | |
171 | ||
172 | m->next = monitors; | |
173 | m->mask = mask; | |
174 | m->callback = callback; | |
175 | m->u = u; | |
176 | monitors = m; | |
177 | } | |
178 | ||
10e226b3 RK |
179 | /* |
180 | Local Variables: | |
181 | c-basic-offset:2 | |
182 | comment-column:40 | |
183 | fill-column:79 | |
184 | indent-tabs-mode:nil | |
185 | End: | |
186 | */ |