2 * This file is part of DisOrder
3 * Copyright (C) 2006-2008 Richard Kettlewell
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.
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.
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
20 /** @file disobedience/queue-generic.c
21 * @brief Queue widgets
23 * This file provides contains code shared between all the queue-like
24 * widgets - the queue, the recent list and the added tracks list.
26 * This code is in the process of being rewritten to use the native list
29 * There are three @ref queuelike objects: @ref ql_queue, @ref
30 * ql_recent and @ref ql_added. Each has an associated queue linked
31 * list and a list store containing the contents.
33 * When new contents turn up we rearrange the list store accordingly.
35 * NB that while in the server the playing track is not in the queue, in
36 * Disobedience, the playing does live in @c ql_queue.q, despite its different
37 * status to everything else found in that list.
39 #include "disobedience.h"
40 #include "queue-generic.h"
42 static struct queuelike *const queuelikes[] = {
43 &ql_queue, &ql_recent, &ql_added
45 #define NQUEUELIKES (sizeof queuelikes / sizeof *queuelikes)
47 /* Track detail lookup ----------------------------------------------------- */
49 static int namepart_lookups_outstanding;
50 static const struct cache_type cachetype_string = { 3600 };
51 static const struct cache_type cachetype_integer = { 3600 };
53 /** @brief Called when a namepart lookup has completed or failed
55 * When there are no lookups in flight a redraw is provoked. This might well
56 * provoke further lookups.
58 static void namepart_completed_or_failed(void) {
59 --namepart_lookups_outstanding;
60 if(!namepart_lookups_outstanding) {
61 /* There are no more lookups outstanding, so we update the display */
62 for(unsigned n = 0; n < NQUEUELIKES; ++n)
63 ql_update_list_store(queuelikes[n]);
67 /** @brief Called when a namepart lookup has completed */
68 static void namepart_completed(void *v, const char *error, const char *value) {
69 D(("namepart_completed"));
71 gtk_label_set_text(GTK_LABEL(report_label), error);
76 cache_put(&cachetype_string, key, value);
77 namepart_completed_or_failed();
80 /** @brief Called when a length lookup has completed */
81 static void length_completed(void *v, const char *error, long l) {
82 D(("length_completed"));
84 gtk_label_set_text(GTK_LABEL(report_label), error);
90 D(("namepart_completed"));
91 value = xmalloc(sizeof *value);
93 cache_put(&cachetype_integer, key, value);
94 namepart_completed_or_failed();
97 /** @brief Arrange to fill in a namepart cache entry */
98 static void namepart_fill(const char *track,
102 D(("namepart_fill %s %s %s %s", track, context, part, key));
103 /* We limit the total number of lookups in flight */
104 ++namepart_lookups_outstanding;
105 D(("namepart_lookups_outstanding -> %d\n", namepart_lookups_outstanding));
106 disorder_eclient_namepart(client, namepart_completed,
107 track, context, part, (void *)key);
110 /** @brief Look up a namepart
111 * @param track Track name
112 * @param context Context
113 * @param part Name part
114 * @param lookup If nonzero, will schedule a lookup for unknown values
116 * If it is in the cache then just return its value. If not then look it up
117 * and arrange for the queues to be updated when its value is available. */
118 static const char *namepart(const char *track,
124 D(("namepart %s %s %s", track, context, part));
125 byte_xasprintf(&key, "namepart context=%s part=%s track=%s",
126 context, part, track);
127 value = cache_get(&cachetype_string, key);
130 namepart_fill(track, context, part, key);
136 /** @brief Called from @ref disobedience/properties.c when we know a name part has changed */
137 void namepart_update(const char *track,
142 byte_xasprintf(&key, "namepart context=%s part=%s track=%s",
143 context, part, track);
144 /* Only refetch if it's actually in the cache. */
145 if(cache_get(&cachetype_string, key))
146 namepart_fill(track, context, part, key);
149 /** @brief Look up a track length
151 * If it is in the cache then just return its value. If not then look it up
152 * and arrange for the queues to be updated when its value is available. */
153 static long getlength(const char *track) {
157 D(("getlength %s", track));
158 byte_xasprintf(&key, "length track=%s", track);
159 value = cache_get(&cachetype_integer, key);
162 D(("deferring..."));;
163 ++namepart_lookups_outstanding;
164 D(("namepart_lookups_outstanding -> %d\n", namepart_lookups_outstanding));
165 disorder_eclient_length(client, length_completed, track, key);
169 /* Column formatting -------------------------------------------------------- */
171 /** @brief Format the 'when' column */
172 const char *column_when(const struct queue_entry *q,
173 const char attribute((unused)) *data) {
180 case playing_isscratch:
181 case playing_unplayed:
186 case playing_no_player:
188 case playing_scratched:
189 case playing_started:
191 case playing_quitting:
199 strftime(when, sizeof when, "%H:%M", localtime_r(&t, &tm));
202 return xstrdup(when);
205 /** @brief Format the 'who' column */
206 const char *column_who(const struct queue_entry *q,
207 const char attribute((unused)) *data) {
209 return q->submitter ? q->submitter : "";
212 /** @brief Format one of the track name columns */
213 const char *column_namepart(const struct queue_entry *q,
215 D(("column_namepart"));
216 return namepart(q->track, "display", data);
219 /** @brief Format the length column */
220 const char *column_length(const struct queue_entry *q,
221 const char attribute((unused)) *data) {
222 D(("column_length"));
225 char *played = 0, *length = 0;
227 /* Work out what to say for the length */
228 l = getlength(q->track);
230 byte_xasprintf(&length, "%ld:%02ld", l / 60, l % 60);
232 byte_xasprintf(&length, "?:??");
233 /* For the currently playing track we want to report how much of the track
235 if(q == playing_track) {
236 /* log_state() arranges that we re-get the playing data whenever the
237 * pause/resume state changes */
238 if(last_state & DISORDER_TRACK_PAUSED)
239 l = playing_track->sofar;
242 l = playing_track->sofar + (now - last_playing);
244 byte_xasprintf(&played, "%ld:%02ld/%s", l / 60, l % 60, length);
250 /* Selection processing ---------------------------------------------------- */
252 /** @brief Stash the selection of @c ql->view
253 * @param ql Queuelike of interest
254 * @return Hash representing current selection
256 static hash *save_selection(struct queuelike *ql) {
257 hash *h = hash_new(1);
259 gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ql->store), iter);
260 for(const struct queue_entry *q = ql->q; q; q = q->next) {
261 if(gtk_tree_selection_iter_is_selected(ql->selection, iter))
262 hash_add(h, q->id, "", HASH_INSERT);
263 gtk_tree_model_iter_next(GTK_TREE_MODEL(ql->store), iter);
268 /** @brief Called from restore_selection() */
269 static int restore_selection_callback(const char *key,
270 void attribute((unused)) *value,
272 const struct queuelike *const ql = u;
274 const struct queue_entry *q;
276 gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ql->store), iter);
277 for(q = ql->q; q && strcmp(key, q->id); q = q->next)
278 gtk_tree_model_iter_next(GTK_TREE_MODEL(ql->store), iter);
280 gtk_tree_selection_select_iter(ql->selection, iter);
281 /* There might be gaps if things have disappeared */
285 /** @brief Restore selection of @c ql->view
286 * @param ql Queuelike of interest
287 * @param h Hash representing former selection
289 static void restore_selection(struct queuelike *ql, hash *h) {
290 hash_foreach(h, restore_selection_callback, ql);
293 /* List store maintenance -------------------------------------------------- */
295 /** @brief Update one row of a list store
296 * @param q Queue entry
297 * @param iter Iterator referring to row or NULL to work it out
299 void ql_update_row(struct queue_entry *q,
301 const struct queuelike *const ql = q->ql;
303 D(("ql_update_row"));
304 /* If no iter was supplied, work it out */
305 GtkTreeIter my_iter[1];
307 gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ql->store), my_iter);
308 struct queue_entry *qq;
309 for(qq = ql->q; qq && q != qq; qq = qq->next)
310 gtk_tree_model_iter_next(GTK_TREE_MODEL(ql->store), my_iter);
315 /* Update all the columns */
316 for(int col = 0; col < ql->ncolumns; ++col)
317 gtk_list_store_set(ql->store, iter,
318 col, ql->columns[col].value(q,
319 ql->columns[col].data),
323 /** @brief Update the list store
324 * @param ql Queuelike to update
326 * Called when new namepart data is available (and initially). Doesn't change
327 * the rows, just updates the cell values.
329 void ql_update_list_store(struct queuelike *ql) {
330 D(("ql_update_list_store"));
332 gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ql->store), iter);
333 for(struct queue_entry *q = ql->q; q; q = q->next) {
334 ql_update_row(q, iter);
335 gtk_tree_model_iter_next(GTK_TREE_MODEL(ql->store), iter);
339 /** @brief Reset the list store
340 * @param ql Queuelike to reset
342 * Throws away all rows and starts again. Used when new queue contents arrives
345 void ql_new_queue(struct queuelike *ql,
346 struct queue_entry *newq) {
348 hash *h = save_selection(ql);
349 /* Clear out old contents */
350 gtk_list_store_clear(ql->store);
351 /* Put in new rows */
353 for(struct queue_entry *q = ql->q; q; q = q->next) {
354 /* Tell every queue entry which queue owns it */
358 gtk_list_store_append(ql->store, iter);
359 /* Update the row contents */
360 ql_update_row(q, iter);
362 restore_selection(ql, h);
363 /* Update menu sensitivity */
367 /** @brief Initialize a @ref queuelike */
368 GtkWidget *init_queuelike(struct queuelike *ql) {
369 D(("init_queuelike"));
370 /* Create the list store */
371 GType *types = xcalloc(ql->ncolumns, sizeof (GType));
372 for(int n = 0; n < ql->ncolumns; ++n)
373 types[n] = G_TYPE_STRING;
374 ql->store = gtk_list_store_newv(ql->ncolumns, types);
376 /* Create the view */
377 ql->view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(ql->store));
378 gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(ql->view), TRUE);
380 /* Create cell renderers and label columns */
381 for(int n = 0; n < ql->ncolumns; ++n) {
382 GtkCellRenderer *r = gtk_cell_renderer_text_new();
383 if(ql->columns[n].flags & COL_ELLIPSIZE)
384 g_object_set(r, "ellipsize", PANGO_ELLIPSIZE_END, (char *)0);
385 if(ql->columns[n].flags & COL_RIGHT)
386 g_object_set(r, "xalign", (gfloat)1.0, (char *)0);
387 GtkTreeViewColumn *c = gtk_tree_view_column_new_with_attributes
388 (ql->columns[n].name,
392 g_object_set(c, "resizable", TRUE, (char *)0);
393 if(ql->columns[n].flags & COL_EXPAND)
394 g_object_set(c, "expand", TRUE, (char *)0);
395 gtk_tree_view_append_column(GTK_TREE_VIEW(ql->view), c);
398 /* The selection should support multiple things being selected */
399 ql->selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(ql->view));
400 gtk_tree_selection_set_mode(ql->selection, GTK_SELECTION_MULTIPLE);
402 /* Remember what the view belongs to */
403 //g_object_set_data(G_OBJECT(ql->view), "type", (void *)&tabtype_queue);
405 g_object_set_data(G_OBJECT(ql->view), "queue", ql);
406 /* Catch button presses */
407 g_signal_connect(ql->view, "button-press-event",
408 G_CALLBACK(ql_button_release), ql);
415 return scroll_widget(ql->view);