Update the queue up to every 15s or so to stop expected started times
[disorder] / disobedience / playlists.c
1 /*
2 * This file is part of DisOrder
3 * Copyright (C) 2008, 2009 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 /** @file disobedience/playlists.c
21 * @brief Playlist support for Disobedience
22 *
23 * The playlists management window contains:
24 * - the playlist picker (a list of all playlists) TODO should be a tree!
25 * - an add button
26 * - a delete button
27 * - the playlist editor (a d+d-capable view of the currently picked playlist)
28 * - a close button TODO
29 *
30 * This file also maintains the playlist menu, allowing playlists to be
31 * activated from the main window's menu.
32 *
33 * Internally we maintain the playlist list, which is just the current list of
34 * playlists. Changes to this are reflected in the playlist menu and the
35 * playlist picker.
36 *
37 */
38 #include "disobedience.h"
39 #include "queue-generic.h"
40 #include "popup.h"
41 #include "validity.h"
42
43 static void playlist_list_received_playlists(void *v,
44 const char *err,
45 int nvec, char **vec);
46 static void playlist_editor_fill(const char *event,
47 void *eventdata,
48 void *callbackdata);
49 static int playlist_playall_sensitive(void *extra);
50 static void playlist_playall_activate(GtkMenuItem *menuitem,
51 gpointer user_data);
52 static int playlist_remove_sensitive(void *extra) ;
53 static void playlist_remove_activate(GtkMenuItem *menuitem,
54 gpointer user_data);
55 static void playlist_new_locked(void *v, const char *err);
56 static void playlist_new_retrieved(void *v, const char *err,
57 int nvec,
58 char **vec);
59 static void playlist_new_created(void *v, const char *err);
60 static void playlist_new_unlocked(void *v, const char *err);
61 static void playlist_new_entry_edited(GtkEditable *editable,
62 gpointer user_data);
63 static void playlist_new_button_toggled(GtkToggleButton *tb,
64 gpointer userdata);
65 static void playlist_new_changed(const char *event,
66 void *eventdata,
67 void *callbackdata);
68 static const char *playlist_new_valid(void);
69 static void playlist_new_details(char **namep,
70 char **fullnamep,
71 gboolean *sharedp,
72 gboolean *publicp,
73 gboolean *privatep);
74 static void playlist_new_ok(GtkButton *button,
75 gpointer userdata);
76 static void playlist_new_cancel(GtkButton *button,
77 gpointer userdata);
78 static void playlists_editor_received_tracks(void *v,
79 const char *err,
80 int nvec, char **vec);
81 static void playlist_window_destroyed(GtkWidget *widget,
82 GtkWidget **widget_pointer);
83 static gboolean playlist_window_keypress(GtkWidget *widget,
84 GdkEventKey *event,
85 gpointer user_data);
86 static int playlistcmp(const void *ap, const void *bp);
87 static void playlist_modify_locked(void *v, const char *err);
88 void playlist_modify_retrieved(void *v, const char *err,
89 int nvec,
90 char **vec);
91 static void playlist_modify_updated(void *v, const char *err);
92 static void playlist_modify_unlocked(void *v, const char *err);
93 static void playlist_drop(struct queuelike *ql,
94 int ntracks,
95 char **tracks, char **ids,
96 struct queue_entry *after_me);
97 struct playlist_modify_data;
98 static void playlist_drop_modify(struct playlist_modify_data *mod,
99 int nvec, char **vec);
100 static void playlist_remove_modify(struct playlist_modify_data *mod,
101 int nvec, char **vec);
102 static gboolean playlist_new_keypress(GtkWidget *widget,
103 GdkEventKey *event,
104 gpointer user_data);
105 static gboolean playlist_picker_keypress(GtkWidget *widget,
106 GdkEventKey *event,
107 gpointer user_data);
108 static void playlist_editor_button_toggled(GtkToggleButton *tb,
109 gpointer userdata);
110 static void playlist_editor_set_buttons(const char *event,
111 void *eventdata,
112 void *callbackdata);
113 static void playlist_editor_got_share(void *v,
114 const char *err,
115 const char *value);
116 static void playlist_editor_share_set(void *v, const char *err);
117
118 /** @brief Playlist editing window */
119 static GtkWidget *playlist_window;
120
121 /** @brief Columns for the playlist editor */
122 static const struct queue_column playlist_columns[] = {
123 { "Artist", column_namepart, "artist", COL_EXPAND|COL_ELLIPSIZE },
124 { "Album", column_namepart, "album", COL_EXPAND|COL_ELLIPSIZE },
125 { "Title", column_namepart, "title", COL_EXPAND|COL_ELLIPSIZE },
126 };
127
128 /** @brief Pop-up menu for playlist editor
129 *
130 * Status:
131 * - track properties works but, bizarrely, raises the main window
132 * - play track works
133 * - play playlist works
134 * - select/deselect all work
135 */
136 static struct menuitem playlist_menuitems[] = {
137 { "Track properties", ql_properties_activate, ql_properties_sensitive, 0, 0 },
138 { "Play track", ql_play_activate, ql_play_sensitive, 0, 0 },
139 { "Play playlist", playlist_playall_activate, playlist_playall_sensitive, 0, 0 },
140 { "Remove track from queue", playlist_remove_activate, playlist_remove_sensitive, 0, 0 },
141 { "Select all tracks", ql_selectall_activate, ql_selectall_sensitive, 0, 0 },
142 { "Deselect all tracks", ql_selectnone_activate, ql_selectnone_sensitive, 0, 0 },
143 };
144
145 static const GtkTargetEntry playlist_targets[] = {
146 {
147 PLAYLIST_TRACKS, /* drag type */
148 GTK_TARGET_SAME_WIDGET, /* rearrangement within a widget */
149 PLAYLIST_TRACKS_ID /* ID value */
150 },
151 {
152 PLAYABLE_TRACKS, /* drag type */
153 GTK_TARGET_SAME_APP|GTK_TARGET_OTHER_WIDGET, /* copying between widgets */
154 PLAYABLE_TRACKS_ID, /* ID value */
155 },
156 {
157 .target = NULL
158 }
159 };
160
161 /** @brief Queuelike for editing a playlist */
162 static struct queuelike ql_playlist = {
163 .name = "playlist",
164 .columns = playlist_columns,
165 .ncolumns = sizeof playlist_columns / sizeof *playlist_columns,
166 .menuitems = playlist_menuitems,
167 .nmenuitems = sizeof playlist_menuitems / sizeof *playlist_menuitems,
168 .drop = playlist_drop,
169 .drag_source_targets = playlist_targets,
170 .drag_source_actions = GDK_ACTION_MOVE|GDK_ACTION_COPY,
171 .drag_dest_targets = playlist_targets,
172 .drag_dest_actions = GDK_ACTION_MOVE|GDK_ACTION_COPY,
173 };
174
175 /* Maintaining the list of playlists ---------------------------------------- */
176
177 /** @brief Current list of playlists or NULL */
178 char **playlists;
179
180 /** @brief Count of playlists */
181 int nplaylists;
182
183 /** @brief Schedule an update to the list of playlists
184 *
185 * Called periodically and when a playlist is created or deleted.
186 */
187 static void playlist_list_update(const char attribute((unused)) *event,
188 void attribute((unused)) *eventdata,
189 void attribute((unused)) *callbackdata) {
190 disorder_eclient_playlists(client, playlist_list_received_playlists, 0);
191 }
192
193 /** @brief Called with a new list of playlists */
194 static void playlist_list_received_playlists(void attribute((unused)) *v,
195 const char *err,
196 int nvec, char **vec) {
197 if(err) {
198 playlists = 0;
199 nplaylists = -1;
200 /* Probably means server does not support playlists */
201 } else {
202 playlists = vec;
203 nplaylists = nvec;
204 qsort(playlists, nplaylists, sizeof (char *), playlistcmp);
205 }
206 /* Tell our consumers */
207 event_raise("playlists-updated", 0);
208 }
209
210 /** @brief qsort() callback for playlist name comparison */
211 static int playlistcmp(const void *ap, const void *bp) {
212 const char *a = *(char **)ap, *b = *(char **)bp;
213 const char *ad = strchr(a, '.'), *bd = strchr(b, '.');
214 int c;
215
216 /* Group owned playlists by owner */
217 if(ad && bd) {
218 const int adn = ad - a, bdn = bd - b;
219 if((c = strncmp(a, b, adn < bdn ? adn : bdn)))
220 return c;
221 /* Lexical order within playlists of a single owner */
222 return strcmp(ad + 1, bd + 1);
223 }
224
225 /* Owned playlists after shared ones */
226 if(ad) {
227 return 1;
228 } else if(bd) {
229 return -1;
230 }
231
232 /* Lexical order of shared playlists */
233 return strcmp(a, b);
234 }
235
236 /* Playlists menu ----------------------------------------------------------- */
237
238 static void playlist_menu_playing(void attribute((unused)) *v,
239 const char *err) {
240 if(err)
241 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
242 }
243
244 /** @brief Play received playlist contents
245 *
246 * Passed as a completion callback by menu_activate_playlist().
247 */
248 static void playlist_menu_received_content(void attribute((unused)) *v,
249 const char *err,
250 int nvec, char **vec) {
251 if(err) {
252 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
253 return;
254 }
255 for(int n = 0; n < nvec; ++n)
256 disorder_eclient_play(client, vec[n], playlist_menu_playing, NULL);
257 }
258
259 /** @brief Called to activate a playlist
260 *
261 * Called when the menu item for a playlist is clicked.
262 */
263 static void playlist_menu_activate(GtkMenuItem *menuitem,
264 gpointer attribute((unused)) user_data) {
265 GtkLabel *label = GTK_LABEL(GTK_BIN(menuitem)->child);
266 const char *playlist = gtk_label_get_text(label);
267
268 disorder_eclient_playlist_get(client, playlist_menu_received_content,
269 playlist, NULL);
270 }
271
272 /** @brief Called when the playlists change
273 *
274 * Naively refills the menu. The results might be unsettling if the menu is
275 * currently open, but this is hopefuly fairly rare.
276 */
277 static void playlist_menu_changed(const char attribute((unused)) *event,
278 void attribute((unused)) *eventdata,
279 void attribute((unused)) *callbackdata) {
280 if(!playlists_menu)
281 return; /* OMG too soon */
282 GtkMenuShell *menu = GTK_MENU_SHELL(playlists_menu);
283 while(menu->children)
284 gtk_container_remove(GTK_CONTAINER(menu), GTK_WIDGET(menu->children->data));
285 /* NB nplaylists can be -1 as well as 0 */
286 for(int n = 0; n < nplaylists; ++n) {
287 GtkWidget *w = gtk_menu_item_new_with_label(playlists[n]);
288 g_signal_connect(w, "activate", G_CALLBACK(playlist_menu_activate), 0);
289 gtk_widget_show(w);
290 gtk_menu_shell_append(menu, w);
291 }
292 gtk_widget_set_sensitive(menu_playlists_widget,
293 nplaylists > 0);
294 gtk_widget_set_sensitive(menu_editplaylists_widget,
295 nplaylists >= 0);
296 }
297
298 /* Popup to create a new playlist ------------------------------------------- */
299
300 /** @brief New-playlist popup */
301 static GtkWidget *playlist_new_window;
302
303 /** @brief Text entry in new-playlist popup */
304 static GtkWidget *playlist_new_entry;
305
306 /** @brief Label for displaying feedback on what's wrong */
307 static GtkWidget *playlist_new_info;
308
309 /** @brief "Shared" radio button */
310 static GtkWidget *playlist_new_shared;
311
312 /** @brief "Public" radio button */
313 static GtkWidget *playlist_new_public;
314
315 /** @brief "Private" radio button */
316 static GtkWidget *playlist_new_private;
317
318 /** @brief Buttons for new-playlist popup */
319 static struct button playlist_new_buttons[] = {
320 {
321 .stock = GTK_STOCK_OK,
322 .clicked = playlist_new_ok,
323 .tip = "Create new playlist"
324 },
325 {
326 .stock = GTK_STOCK_CANCEL,
327 .clicked = playlist_new_cancel,
328 .tip = "Do not create new playlist"
329 }
330 };
331 #define NPLAYLIST_NEW_BUTTONS (sizeof playlist_new_buttons / sizeof *playlist_new_buttons)
332
333 /** @brief Pop up a new window to enter the playlist name and details */
334 static void playlist_new_playlist(void) {
335 assert(playlist_new_window == NULL);
336 playlist_new_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
337 g_signal_connect(playlist_new_window, "destroy",
338 G_CALLBACK(gtk_widget_destroyed), &playlist_new_window);
339 gtk_window_set_title(GTK_WINDOW(playlist_new_window), "Create new playlist");
340 /* Window will be modal, suppressing access to other windows */
341 gtk_window_set_modal(GTK_WINDOW(playlist_new_window), TRUE);
342 gtk_window_set_transient_for(GTK_WINDOW(playlist_new_window),
343 GTK_WINDOW(playlist_window));
344
345 /* Window contents will use a table (grid) layout */
346 GtkWidget *table = gtk_table_new(3, 3, FALSE/*!homogeneous*/);
347
348 /* First row: playlist name */
349 gtk_table_attach_defaults(GTK_TABLE(table),
350 gtk_label_new("Playlist name"),
351 0, 1, 0, 1);
352 playlist_new_entry = gtk_entry_new();
353 g_signal_connect(playlist_new_entry, "changed",
354 G_CALLBACK(playlist_new_entry_edited), NULL);
355 gtk_table_attach_defaults(GTK_TABLE(table),
356 playlist_new_entry,
357 1, 3, 0, 1);
358
359 /* Second row: radio buttons to choose type */
360 playlist_new_shared = gtk_radio_button_new_with_label(NULL, "shared");
361 playlist_new_public
362 = gtk_radio_button_new_with_label_from_widget(GTK_RADIO_BUTTON(playlist_new_shared),
363 "public");
364 playlist_new_private
365 = gtk_radio_button_new_with_label_from_widget(GTK_RADIO_BUTTON(playlist_new_shared),
366 "private");
367 g_signal_connect(playlist_new_shared, "toggled",
368 G_CALLBACK(playlist_new_button_toggled), NULL);
369 g_signal_connect(playlist_new_public, "toggled",
370 G_CALLBACK(playlist_new_button_toggled), NULL);
371 g_signal_connect(playlist_new_private, "toggled",
372 G_CALLBACK(playlist_new_button_toggled), NULL);
373 gtk_table_attach_defaults(GTK_TABLE(table), playlist_new_shared, 0, 1, 1, 2);
374 gtk_table_attach_defaults(GTK_TABLE(table), playlist_new_public, 1, 2, 1, 2);
375 gtk_table_attach_defaults(GTK_TABLE(table), playlist_new_private, 2, 3, 1, 2);
376
377 /* Third row: info bar saying why not */
378 playlist_new_info = gtk_label_new("");
379 gtk_table_attach_defaults(GTK_TABLE(table), playlist_new_info,
380 0, 3, 2, 3);
381
382 /* Fourth row: ok/cancel buttons */
383 GtkWidget *hbox = create_buttons_box(playlist_new_buttons,
384 NPLAYLIST_NEW_BUTTONS,
385 gtk_hbox_new(FALSE, 0));
386 gtk_table_attach_defaults(GTK_TABLE(table), hbox, 0, 3, 3, 4);
387
388 gtk_container_add(GTK_CONTAINER(playlist_new_window),
389 frame_widget(table, NULL));
390
391 /* Set initial state of OK button */
392 playlist_new_changed(0,0,0);
393
394 g_signal_connect(playlist_new_window, "key-press-event",
395 G_CALLBACK(playlist_new_keypress), 0);
396
397 /* Display the window */
398 gtk_widget_show_all(playlist_new_window);
399 }
400
401 /** @brief Keypress handler */
402 static gboolean playlist_new_keypress(GtkWidget attribute((unused)) *widget,
403 GdkEventKey *event,
404 gpointer attribute((unused)) user_data) {
405 if(event->state)
406 return FALSE;
407 switch(event->keyval) {
408 case GDK_Return:
409 playlist_new_ok(NULL, NULL);
410 return TRUE;
411 case GDK_Escape:
412 gtk_widget_destroy(playlist_new_window);
413 return TRUE;
414 default:
415 return FALSE;
416 }
417 }
418
419 /** @brief Called when 'ok' is clicked in new-playlist popup */
420 static void playlist_new_ok(GtkButton attribute((unused)) *button,
421 gpointer attribute((unused)) userdata) {
422 if(playlist_new_valid())
423 return;
424 gboolean shared, public, private;
425 char *name, *fullname;
426 playlist_new_details(&name, &fullname, &shared, &public, &private);
427
428 /* We need to:
429 * - lock the playlist
430 * - check it doesn't exist
431 * - set sharing (which will create it empty
432 * - unlock it
433 *
434 * TODO we should freeze the window while this is going on to stop a second
435 * click.
436 */
437 disorder_eclient_playlist_lock(client, playlist_new_locked, fullname,
438 fullname);
439 }
440
441 /** @brief Called when the proposed new playlist has been locked */
442 static void playlist_new_locked(void *v, const char *err) {
443 char *fullname = v;
444 if(err) {
445 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
446 return;
447 }
448 disorder_eclient_playlist_get(client, playlist_new_retrieved,
449 fullname, fullname);
450 }
451
452 /** @brief Called when the proposed new playlist's contents have been retrieved
453 *
454 * ...or rather, normally, when it's been reported that it does not exist.
455 */
456 static void playlist_new_retrieved(void *v, const char *err,
457 int nvec,
458 char attribute((unused)) **vec) {
459 char *fullname = v;
460 if(!err && nvec != -1)
461 /* A rare case but not in principle impossible */
462 err = "A playlist with that name already exists.";
463 if(err) {
464 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
465 disorder_eclient_playlist_unlock(client, playlist_new_unlocked, fullname);
466 return;
467 }
468 gboolean shared, public, private;
469 playlist_new_details(0, 0, &shared, &public, &private);
470 disorder_eclient_playlist_set_share(client, playlist_new_created, fullname,
471 public ? "public"
472 : private ? "private"
473 : "shared",
474 fullname);
475 }
476
477 /** @brief Called when the new playlist has been created */
478 static void playlist_new_created(void attribute((unused)) *v, const char *err) {
479 if(err) {
480 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
481 return;
482 }
483 disorder_eclient_playlist_unlock(client, playlist_new_unlocked, NULL);
484 // TODO arrange for the new playlist to be selected
485 }
486
487 /** @brief Called when the newly created playlist has unlocked */
488 static void playlist_new_unlocked(void attribute((unused)) *v, const char *err) {
489 if(err)
490 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
491 /* Pop down the creation window */
492 gtk_widget_destroy(playlist_new_window);
493 }
494
495 /** @brief Called when 'cancel' is clicked in new-playlist popup */
496 static void playlist_new_cancel(GtkButton attribute((unused)) *button,
497 gpointer attribute((unused)) userdata) {
498 gtk_widget_destroy(playlist_new_window);
499 }
500
501 /** @brief Called when some radio button in the new-playlist popup changes */
502 static void playlist_new_button_toggled(GtkToggleButton attribute((unused)) *tb,
503 gpointer attribute((unused)) userdata) {
504 playlist_new_changed(0,0,0);
505 }
506
507 /** @brief Called when the text entry field in the new-playlist popup changes */
508 static void playlist_new_entry_edited(GtkEditable attribute((unused)) *editable,
509 gpointer attribute((unused)) user_data) {
510 playlist_new_changed(0,0,0);
511 }
512
513 /** @brief Called to update new playlist window state
514 *
515 * This is called whenever one the text entry or radio buttons changed, and
516 * also when the set of known playlists changes. It determines whether the new
517 * playlist would be creatable and sets the sensitivity of the OK button
518 * and info display accordingly.
519 */
520 static void playlist_new_changed(const char attribute((unused)) *event,
521 void attribute((unused)) *eventdata,
522 void attribute((unused)) *callbackdata) {
523 if(!playlist_new_window)
524 return;
525 const char *reason = playlist_new_valid();
526 gtk_widget_set_sensitive(playlist_new_buttons[0].widget,
527 !reason);
528 gtk_label_set_text(GTK_LABEL(playlist_new_info), reason);
529 }
530
531 /** @brief Test whether the new-playlist window settings are valid
532 * @return NULL on success or an error string if not
533 */
534 static const char *playlist_new_valid(void) {
535 gboolean shared, public, private;
536 char *name, *fullname;
537 playlist_new_details(&name, &fullname, &shared, &public, &private);
538 if(!(shared || public || private))
539 return "No type set.";
540 if(!*name)
541 return "";
542 /* See if the result is valid */
543 if(!valid_username(name)
544 || playlist_parse_name(fullname, NULL, NULL))
545 return "Not a valid playlist name.";
546 /* See if the result clashes with an existing name. This is not a perfect
547 * check, the playlist might be created after this point but before we get a
548 * chance to disable the "OK" button. However when we try to create the
549 * playlist we will first try to retrieve it, with a lock held, so we
550 * shouldn't end up overwriting anything. */
551 for(int n = 0; n < nplaylists; ++n)
552 if(!strcmp(playlists[n], fullname)) {
553 if(shared)
554 return "A shared playlist with that name already exists.";
555 else
556 return "You already have a playlist with that name.";
557 }
558 /* As far as we can tell creation would work */
559 return NULL;
560 }
561
562 /** @brief Get entered new-playlist details
563 * @param namep Where to store entered name (or NULL)
564 * @param fullnamep Where to store computed full name (or NULL)
565 * @param sharep Where to store 'shared' flag (or NULL)
566 * @param publicp Where to store 'public' flag (or NULL)
567 * @param privatep Where to store 'private' flag (or NULL)
568 */
569 static void playlist_new_details(char **namep,
570 char **fullnamep,
571 gboolean *sharedp,
572 gboolean *publicp,
573 gboolean *privatep) {
574 gboolean shared, public, private;
575 g_object_get(playlist_new_shared, "active", &shared, (char *)NULL);
576 g_object_get(playlist_new_public, "active", &public, (char *)NULL);
577 g_object_get(playlist_new_private, "active", &private, (char *)NULL);
578 char *gname = gtk_editable_get_chars(GTK_EDITABLE(playlist_new_entry),
579 0, -1); /* name owned by calle */
580 char *name = xstrdup(gname);
581 g_free(gname);
582 if(sharedp) *sharedp = shared;
583 if(publicp) *publicp = public;
584 if(privatep) *privatep = private;
585 if(namep) *namep = name;
586 if(fullnamep) {
587 if(*sharedp) *fullnamep = *namep;
588 else byte_xasprintf(fullnamep, "%s.%s", config->username, name);
589 }
590 }
591
592 /* Playlist picker ---------------------------------------------------------- */
593
594 /** @brief Delete button */
595 static GtkWidget *playlist_picker_delete_button;
596
597 /** @brief Tree model for list of playlists */
598 static GtkListStore *playlist_picker_list;
599
600 /** @brief Selection for list of playlists */
601 static GtkTreeSelection *playlist_picker_selection;
602
603 /** @brief Currently selected playlist */
604 static const char *playlist_picker_selected;
605
606 /** @brief (Re-)populate the playlist picker tree model */
607 static void playlist_picker_fill(const char attribute((unused)) *event,
608 void attribute((unused)) *eventdata,
609 void attribute((unused)) *callbackdata) {
610 GtkTreeIter iter[1];
611
612 if(!playlist_window)
613 return;
614 if(!playlist_picker_list)
615 playlist_picker_list = gtk_list_store_new(1, G_TYPE_STRING);
616 const char *was_selected = playlist_picker_selected;
617 gtk_list_store_clear(playlist_picker_list); /* clears playlists_selected */
618 for(int n = 0; n < nplaylists; ++n) {
619 gtk_list_store_insert_with_values(playlist_picker_list, iter,
620 n /*position*/,
621 0, playlists[n], /* column 0 */
622 -1); /* no more cols */
623 /* Reselect the selected playlist */
624 if(was_selected && !strcmp(was_selected, playlists[n]))
625 gtk_tree_selection_select_iter(playlist_picker_selection, iter);
626 }
627 /* TODO deselecting then reselecting the current playlist resets the playlist
628 * editor, which trashes the user's selection. */
629 }
630
631 /** @brief Called when the selection might have changed */
632 static void playlist_picker_selection_changed(GtkTreeSelection attribute((unused)) *treeselection,
633 gpointer attribute((unused)) user_data) {
634 GtkTreeIter iter;
635 char *gselected, *selected;
636
637 /* Identify the current selection */
638 if(gtk_tree_selection_get_selected(playlist_picker_selection, 0, &iter)) {
639 gtk_tree_model_get(GTK_TREE_MODEL(playlist_picker_list), &iter,
640 0, &gselected, -1);
641 selected = xstrdup(gselected);
642 g_free(gselected);
643 } else
644 selected = 0;
645 /* Set button sensitivity according to the new state */
646 int deletable = FALSE;
647 if(selected) {
648 if(strchr(selected, '.')) {
649 if(!strncmp(selected, config->username, strlen(config->username)))
650 deletable = TRUE;
651 } else
652 deletable = TRUE;
653 }
654 gtk_widget_set_sensitive(playlist_picker_delete_button, deletable);
655 /* Eliminate no-change cases */
656 if(!selected && !playlist_picker_selected)
657 return;
658 if(selected
659 && playlist_picker_selected
660 && !strcmp(selected, playlist_picker_selected))
661 return;
662 /* Record the new state */
663 playlist_picker_selected = selected;
664 /* Re-initalize the queue */
665 ql_new_queue(&ql_playlist, NULL);
666 /* Synthesize a playlist-modified to re-initialize the editor etc */
667 event_raise("playlist-modified", (void *)playlist_picker_selected);
668 }
669
670 /** @brief Called when the 'add' button is pressed */
671 static void playlist_picker_add(GtkButton attribute((unused)) *button,
672 gpointer attribute((unused)) userdata) {
673 /* Unselect whatever is selected TODO why?? */
674 gtk_tree_selection_unselect_all(playlist_picker_selection);
675 playlist_new_playlist();
676 }
677
678 /** @brief Called when playlist deletion completes */
679 static void playlists_picker_delete_completed(void attribute((unused)) *v,
680 const char *err) {
681 if(err)
682 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
683 }
684
685 /** @brief Called when the 'Delete' button is pressed */
686 static void playlist_picker_delete(GtkButton attribute((unused)) *button,
687 gpointer attribute((unused)) userdata) {
688 GtkWidget *yesno;
689 int res;
690
691 if(!playlist_picker_selected)
692 return;
693 yesno = gtk_message_dialog_new(GTK_WINDOW(playlist_window),
694 GTK_DIALOG_MODAL,
695 GTK_MESSAGE_QUESTION,
696 GTK_BUTTONS_YES_NO,
697 "Do you really want to delete playlist %s?"
698 " This action cannot be undone.",
699 playlist_picker_selected);
700 res = gtk_dialog_run(GTK_DIALOG(yesno));
701 gtk_widget_destroy(yesno);
702 if(res == GTK_RESPONSE_YES) {
703 disorder_eclient_playlist_delete(client,
704 playlists_picker_delete_completed,
705 playlist_picker_selected,
706 NULL);
707 }
708 }
709
710 /** @brief Table of buttons below the playlist list */
711 static struct button playlist_picker_buttons[] = {
712 {
713 GTK_STOCK_ADD,
714 playlist_picker_add,
715 "Create a new playlist",
716 0
717 },
718 {
719 GTK_STOCK_REMOVE,
720 playlist_picker_delete,
721 "Delete a playlist",
722 0
723 },
724 };
725 #define NPLAYLIST_PICKER_BUTTONS (sizeof playlist_picker_buttons / sizeof *playlist_picker_buttons)
726
727 /** @brief Create the list of playlists for the edit playlists window */
728 static GtkWidget *playlist_picker_create(void) {
729 /* Create the list of playlist and populate it */
730 playlist_picker_fill(NULL, NULL, NULL);
731 /* Create the tree view */
732 GtkWidget *tree = gtk_tree_view_new_with_model(GTK_TREE_MODEL(playlist_picker_list));
733 /* ...and the renderers for it */
734 GtkCellRenderer *cr = gtk_cell_renderer_text_new();
735 GtkTreeViewColumn *col = gtk_tree_view_column_new_with_attributes("Playlist",
736 cr,
737 "text", 0,
738 NULL);
739 gtk_tree_view_append_column(GTK_TREE_VIEW(tree), col);
740 /* Get the selection for the view; set its mode; arrange for a callback when
741 * it changes */
742 playlist_picker_selected = NULL;
743 playlist_picker_selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree));
744 gtk_tree_selection_set_mode(playlist_picker_selection, GTK_SELECTION_BROWSE);
745 g_signal_connect(playlist_picker_selection, "changed",
746 G_CALLBACK(playlist_picker_selection_changed), NULL);
747
748 /* Create the control buttons */
749 GtkWidget *buttons = create_buttons_box(playlist_picker_buttons,
750 NPLAYLIST_PICKER_BUTTONS,
751 gtk_hbox_new(FALSE, 1));
752 playlist_picker_delete_button = playlist_picker_buttons[1].widget;
753
754 playlist_picker_selection_changed(NULL, NULL);
755
756 /* Buttons live below the list */
757 GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
758 gtk_box_pack_start(GTK_BOX(vbox), scroll_widget(tree), TRUE/*expand*/, TRUE/*fill*/, 0);
759 gtk_box_pack_start(GTK_BOX(vbox), buttons, FALSE/*expand*/, FALSE, 0);
760
761 g_signal_connect(tree, "key-press-event",
762 G_CALLBACK(playlist_picker_keypress), 0);
763
764 return vbox;
765 }
766
767 static gboolean playlist_picker_keypress(GtkWidget attribute((unused)) *widget,
768 GdkEventKey *event,
769 gpointer attribute((unused)) user_data) {
770 if(event->state)
771 return FALSE;
772 switch(event->keyval) {
773 case GDK_BackSpace:
774 case GDK_Delete:
775 playlist_picker_delete(NULL, NULL);
776 return TRUE;
777 default:
778 return FALSE;
779 }
780 }
781
782 static void playlist_picker_destroy(void) {
783 playlist_picker_delete_button = NULL;
784 g_object_unref(playlist_picker_list);
785 playlist_picker_list = NULL;
786 playlist_picker_selection = NULL;
787 playlist_picker_selected = NULL;
788 }
789
790 /* Playlist editor ---------------------------------------------------------- */
791
792 static GtkWidget *playlist_editor_shared;
793 static GtkWidget *playlist_editor_public;
794 static GtkWidget *playlist_editor_private;
795 static int playlist_editor_setting_buttons;
796
797 static GtkWidget *playlists_editor_create(void) {
798 assert(ql_playlist.view == NULL); /* better not be set up already */
799
800 GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
801 playlist_editor_shared = gtk_radio_button_new_with_label(NULL, "shared");
802 playlist_editor_public
803 = gtk_radio_button_new_with_label_from_widget(GTK_RADIO_BUTTON(playlist_editor_shared),
804 "public");
805 playlist_editor_private
806 = gtk_radio_button_new_with_label_from_widget(GTK_RADIO_BUTTON(playlist_editor_shared),
807 "private");
808 g_signal_connect(playlist_editor_public, "toggled",
809 G_CALLBACK(playlist_editor_button_toggled),
810 (void *)"public");
811 g_signal_connect(playlist_editor_private, "toggled",
812 G_CALLBACK(playlist_editor_button_toggled),
813 (void *)"private");
814 gtk_box_pack_start(GTK_BOX(hbox), playlist_editor_shared,
815 FALSE/*expand*/, FALSE/*fill*/, 0);
816 gtk_box_pack_start(GTK_BOX(hbox), playlist_editor_public,
817 FALSE/*expand*/, FALSE/*fill*/, 0);
818 gtk_box_pack_start(GTK_BOX(hbox), playlist_editor_private,
819 FALSE/*expand*/, FALSE/*fill*/, 0);
820 playlist_editor_set_buttons(0,0,0);
821
822 GtkWidget *vbox = gtk_vbox_new(FALSE, 0);
823 gtk_box_pack_start(GTK_BOX(vbox), init_queuelike(&ql_playlist),
824 TRUE/*expand*/, TRUE/*fill*/, 0);
825 gtk_box_pack_start(GTK_BOX(vbox), hbox,
826 FALSE/*expand*/, FALSE/*fill*/, 0);
827 return vbox;
828 }
829
830 /** @brief Called when the public/private buttons are set */
831 static void playlist_editor_button_toggled(GtkToggleButton *tb,
832 gpointer userdata) {
833 const char *state = userdata;
834 if(!gtk_toggle_button_get_active(tb)
835 || !playlist_picker_selected
836 || playlist_editor_setting_buttons)
837 return;
838 disorder_eclient_playlist_set_share(client, playlist_editor_share_set,
839 playlist_picker_selected, state, NULL);
840 }
841
842 static void playlist_editor_share_set(void attribute((unused)) *v,
843 const attribute((unused)) char *err) {
844 if(err)
845 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
846 }
847
848 /** @brief Set the editor button state and sensitivity */
849 static void playlist_editor_set_buttons(const char attribute((unused)) *event,
850 void *eventdata,
851 void attribute((unused)) *callbackdata) {
852 /* If this event is for a non-selected playlist do nothing */
853 if(eventdata
854 && playlist_picker_selected
855 && strcmp(eventdata, playlist_picker_selected))
856 return;
857 if(playlist_picker_selected) {
858 if(strchr(playlist_picker_selected, '.'))
859 disorder_eclient_playlist_get_share(client,
860 playlist_editor_got_share,
861 playlist_picker_selected,
862 (void *)playlist_picker_selected);
863 else
864 playlist_editor_got_share((void *)playlist_picker_selected, NULL,
865 "shared");
866 } else
867 playlist_editor_got_share(NULL, NULL, NULL);
868 }
869
870 /** @brief Called with playlist sharing details */
871 static void playlist_editor_got_share(void *v,
872 const char *err,
873 const char *value) {
874 const char *playlist = v;
875 if(err) {
876 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
877 value = NULL;
878 }
879 /* Set the currently active button */
880 ++playlist_editor_setting_buttons;
881 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(playlist_editor_shared),
882 value && !strcmp(value, "shared"));
883 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(playlist_editor_public),
884 value && !strcmp(value, "public"));
885 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(playlist_editor_private),
886 value && !strcmp(value, "private"));
887 /* Set button sensitivity */
888 gtk_widget_set_sensitive(playlist_editor_shared, FALSE);
889 int sensitive = (playlist
890 && strchr(playlist, '.')
891 && !strncmp(playlist, config->username,
892 strlen(config->username)));
893 gtk_widget_set_sensitive(playlist_editor_public, sensitive);
894 gtk_widget_set_sensitive(playlist_editor_private, sensitive);
895 --playlist_editor_setting_buttons;
896 }
897
898 /** @brief (Re-)populate the playlist tree model */
899 static void playlist_editor_fill(const char attribute((unused)) *event,
900 void *eventdata,
901 void attribute((unused)) *callbackdata) {
902 const char *modified_playlist = eventdata;
903 if(!playlist_window)
904 return;
905 if(!playlist_picker_selected)
906 return;
907 if(!strcmp(playlist_picker_selected, modified_playlist))
908 disorder_eclient_playlist_get(client, playlists_editor_received_tracks,
909 playlist_picker_selected,
910 (void *)playlist_picker_selected);
911 }
912
913 /** @brief Called with new tracks for the playlist */
914 static void playlists_editor_received_tracks(void *v,
915 const char *err,
916 int nvec, char **vec) {
917 const char *playlist = v;
918 if(err) {
919 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
920 return;
921 }
922 if(!playlist_picker_selected
923 || strcmp(playlist, playlist_picker_selected)) {
924 /* The tracks are for the wrong playlist - something must have changed
925 * while the fetch command was in flight. We just ignore this callback,
926 * the right answer will be requested and arrive in due course. */
927 return;
928 }
929 if(nvec == -1)
930 /* No such playlist, presumably we'll get a deleted event shortly */
931 return;
932 /* Translate the list of tracks into queue entries */
933 struct queue_entry *newq, **qq = &newq, *qprev = NULL;
934 hash *h = hash_new(sizeof(int));
935 for(int n = 0; n < nvec; ++n) {
936 struct queue_entry *q = xmalloc(sizeof *q);
937 q->prev = qprev;
938 q->track = vec[n];
939 /* Synthesize a unique ID so that the selection survives updates. Tracks
940 * can appear more than once in the queue so we can't use raw track names,
941 * so we add a serial number to the start. */
942 int *serialp = hash_find(h, vec[n]), serial = serialp ? *serialp : 0;
943 byte_xasprintf((char **)&q->id, "%d-%s", serial++, vec[n]);
944 hash_add(h, vec[n], &serial, HASH_INSERT_OR_REPLACE);
945 *qq = q;
946 qq = &q->next;
947 qprev = q;
948 }
949 *qq = NULL;
950 ql_new_queue(&ql_playlist, newq);
951 }
952
953 /* Playlist mutation -------------------------------------------------------- */
954
955 /** @brief State structure for guarded playlist modification
956 *
957 * To safely move, insert or delete rows we must:
958 * - take a lock
959 * - fetch the playlist
960 * - verify it's not changed
961 * - update the playlist contents
962 * - store the playlist
963 * - release the lock
964 *
965 * The playlist_modify_ functions do just that.
966 *
967 * To kick things off create one of these and disorder_eclient_playlist_lock()
968 * with playlist_modify_locked() as its callback. @c modify will be called; it
969 * should disorder_eclient_playlist_set() to set the new state with
970 * playlist_modify_updated() as its callback.
971 */
972 struct playlist_modify_data {
973 /** @brief Affected playlist */
974 const char *playlist;
975 /** @brief Modification function
976 * @param mod Pointer back to state structure
977 * @param ntracks Length of playlist
978 * @param tracks Tracks in playlist
979 */
980 void (*modify)(struct playlist_modify_data *mod,
981 int ntracks, char **tracks);
982
983 /** @brief Number of tracks dropped */
984 int ntracks;
985 /** @brief Track names dropped */
986 char **tracks;
987 /** @brief Track IDs dropped */
988 char **ids;
989 /** @brief Drop after this point */
990 struct queue_entry *after_me;
991 };
992
993 /** @brief Called with playlist locked
994 *
995 * This is the entry point for guarded modification ising @ref
996 * playlist_modify_data.
997 */
998 static void playlist_modify_locked(void *v, const char *err) {
999 struct playlist_modify_data *mod = v;
1000 if(err) {
1001 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
1002 return;
1003 }
1004 disorder_eclient_playlist_get(client, playlist_modify_retrieved,
1005 mod->playlist, mod);
1006 }
1007
1008 /** @brief Called with current playlist contents
1009 * Checks that the playlist is still current and has not changed.
1010 */
1011 void playlist_modify_retrieved(void *v, const char *err,
1012 int nvec,
1013 char **vec) {
1014 struct playlist_modify_data *mod = v;
1015 if(err) {
1016 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
1017 disorder_eclient_playlist_unlock(client, playlist_modify_unlocked, NULL);
1018 return;
1019 }
1020 if(nvec < 0
1021 || !playlist_picker_selected
1022 || strcmp(mod->playlist, playlist_picker_selected)) {
1023 disorder_eclient_playlist_unlock(client, playlist_modify_unlocked, NULL);
1024 return;
1025 }
1026 /* We check that the contents haven't changed. If they have we just abandon
1027 * the operation. The user will have to try again. */
1028 struct queue_entry *q;
1029 int n;
1030 for(n = 0, q = ql_playlist.q; q && n < nvec; ++n, q = q->next)
1031 if(strcmp(q->track, vec[n]))
1032 break;
1033 if(n != nvec || q != NULL) {
1034 disorder_eclient_playlist_unlock(client, playlist_modify_unlocked, NULL);
1035 return;
1036 }
1037 mod->modify(mod, nvec, vec);
1038 }
1039
1040 /** @brief Called when the playlist has been updated */
1041 static void playlist_modify_updated(void attribute((unused)) *v,
1042 const char *err) {
1043 if(err)
1044 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
1045 disorder_eclient_playlist_unlock(client, playlist_modify_unlocked, NULL);
1046 }
1047
1048 /** @brief Called when the playlist has been unlocked */
1049 static void playlist_modify_unlocked(void attribute((unused)) *v,
1050 const char *err) {
1051 if(err)
1052 popup_submsg(playlist_window, GTK_MESSAGE_ERROR, err);
1053 }
1054
1055 /* Drop tracks into a playlist ---------------------------------------------- */
1056
1057 static void playlist_drop(struct queuelike attribute((unused)) *ql,
1058 int ntracks,
1059 char **tracks, char **ids,
1060 struct queue_entry *after_me) {
1061 struct playlist_modify_data *mod = xmalloc(sizeof *mod);
1062
1063 mod->playlist = playlist_picker_selected;
1064 mod->modify = playlist_drop_modify;
1065 mod->ntracks = ntracks;
1066 mod->tracks = tracks;
1067 mod->ids = ids;
1068 mod->after_me = after_me;
1069 disorder_eclient_playlist_lock(client, playlist_modify_locked,
1070 mod->playlist, mod);
1071 }
1072
1073 /** @brief Return true if track @p i is in the moved set */
1074 static int playlist_drop_is_moved(struct playlist_modify_data *mod,
1075 int i) {
1076 struct queue_entry *q;
1077
1078 /* Find the q corresponding to i, so we can get the ID */
1079 for(q = ql_playlist.q; i; q = q->next, --i)
1080 ;
1081 /* See if track i matches any of the moved set by ID */
1082 for(int n = 0; n < mod->ntracks; ++n)
1083 if(!strcmp(q->id, mod->ids[n]))
1084 return 1;
1085 return 0;
1086 }
1087
1088 static void playlist_drop_modify(struct playlist_modify_data *mod,
1089 int nvec, char **vec) {
1090 char **newvec;
1091 int nnewvec;
1092
1093 //fprintf(stderr, "\nplaylist_drop_modify\n");
1094 /* after_me is the queue_entry to insert after, or NULL to insert at the
1095 * beginning (including the case when the playlist is empty) */
1096 //fprintf(stderr, "after_me = %s\n",
1097 // mod->after_me ? mod->after_me->track : "NULL");
1098 struct queue_entry *q = ql_playlist.q;
1099 int ins = 0;
1100 if(mod->after_me) {
1101 ++ins;
1102 while(q && q != mod->after_me) {
1103 q = q->next;
1104 ++ins;
1105 }
1106 }
1107 /* Now ins is the index to insert at; equivalently, the row to insert before,
1108 * and so equal to nvec to append. */
1109 #if 0
1110 fprintf(stderr, "ins = %d = %s\n",
1111 ins, ins < nvec ? vec[ins] : "NULL");
1112 for(int n = 0; n < nvec; ++n)
1113 fprintf(stderr, "%d: %s %s\n", n, n == ins ? "->" : " ", vec[n]);
1114 fprintf(stderr, "nvec = %d\n", nvec);
1115 #endif
1116 if(mod->ids) {
1117 /* This is a rearrangement */
1118 /* We have:
1119 * - vec[], the current layout
1120 * - ins, pointing into vec
1121 * - mod->tracks[], a subset of vec[] which is to be moved
1122 *
1123 * ins is the insertion point BUT it is in terms of the whole
1124 * array, i.e. before mod->tracks[] have been removed. The first
1125 * step then is to remove everything in mod->tracks[] and adjust
1126 * ins downwards as necessary.
1127 */
1128 /* First zero out anything that's moved */
1129 int before_ins = 0;
1130 for(int n = 0; n < nvec; ++n) {
1131 if(playlist_drop_is_moved(mod, n)) {
1132 vec[n] = NULL;
1133 if(n < ins)
1134 ++before_ins;
1135 }
1136 }
1137 /* Now collapse down the array */
1138 int i = 0;
1139 for(int n = 0; n < nvec; ++n) {
1140 if(vec[n])
1141 vec[i++] = vec[n];
1142 }
1143 assert(i + mod->ntracks == nvec);
1144 nvec = i;
1145 /* Adjust the insertion point to take account of things moved from before
1146 * it */
1147 ins -= before_ins;
1148 /* The effect is now the same as an insertion */
1149 }
1150 /* This is (now) an insertion */
1151 nnewvec = nvec + mod->ntracks;
1152 newvec = xcalloc(nnewvec, sizeof (char *));
1153 memcpy(newvec, vec,
1154 ins * sizeof (char *));
1155 memcpy(newvec + ins, mod->tracks,
1156 mod->ntracks * sizeof (char *));
1157 memcpy(newvec + ins + mod->ntracks, vec + ins,
1158 (nvec - ins) * sizeof (char *));
1159 disorder_eclient_playlist_set(client, playlist_modify_updated, mod->playlist,
1160 newvec, nnewvec, mod);
1161 }
1162
1163 /* Playlist editor right-click menu ---------------------------------------- */
1164
1165 /** @brief Called to determine whether the playlist is playable */
1166 static int playlist_playall_sensitive(void attribute((unused)) *extra) {
1167 /* If there's no playlist obviously we can't play it */
1168 if(!playlist_picker_selected)
1169 return FALSE;
1170 /* If it's empty we can't play it */
1171 if(!ql_playlist.q)
1172 return FALSE;
1173 /* Otherwise we can */
1174 return TRUE;
1175 }
1176
1177 /** @brief Called to play the selected playlist */
1178 static void playlist_playall_activate(GtkMenuItem attribute((unused)) *menuitem,
1179 gpointer attribute((unused)) user_data) {
1180 if(!playlist_picker_selected)
1181 return;
1182 /* Re-use the menu-based activation callback */
1183 disorder_eclient_playlist_get(client, playlist_menu_received_content,
1184 playlist_picker_selected, NULL);
1185 }
1186
1187 /** @brief Called to determine whether the playlist is playable */
1188 static int playlist_remove_sensitive(void attribute((unused)) *extra) {
1189 /* If there's no playlist obviously we can't remove from it */
1190 if(!playlist_picker_selected)
1191 return FALSE;
1192 /* If no tracks are selected we cannot remove them */
1193 if(!gtk_tree_selection_count_selected_rows(ql_playlist.selection))
1194 return FALSE;
1195 /* We're good to go */
1196 return TRUE;
1197 }
1198
1199 /** @brief Called to remove the selected playlist */
1200 static void playlist_remove_activate(GtkMenuItem attribute((unused)) *menuitem,
1201 gpointer attribute((unused)) user_data) {
1202 if(!playlist_picker_selected)
1203 return;
1204 struct playlist_modify_data *mod = xmalloc(sizeof *mod);
1205
1206 mod->playlist = playlist_picker_selected;
1207 mod->modify = playlist_remove_modify;
1208 disorder_eclient_playlist_lock(client, playlist_modify_locked,
1209 mod->playlist, mod);
1210 }
1211
1212 static void playlist_remove_modify(struct playlist_modify_data *mod,
1213 int attribute((unused)) nvec, char **vec) {
1214 GtkTreeIter iter[1];
1215 gboolean it = gtk_tree_model_get_iter_first(GTK_TREE_MODEL(ql_playlist.store),
1216 iter);
1217 int n = 0, m = 0;
1218 while(it) {
1219 if(!gtk_tree_selection_iter_is_selected(ql_playlist.selection, iter))
1220 vec[m++] = vec[n++];
1221 else
1222 n++;
1223 it = gtk_tree_model_iter_next(GTK_TREE_MODEL(ql_playlist.store), iter);
1224 }
1225 disorder_eclient_playlist_set(client, playlist_modify_updated, mod->playlist,
1226 vec, m, mod);
1227 }
1228
1229 /* Playlists window --------------------------------------------------------- */
1230
1231 /** @brief Pop up the playlists window
1232 *
1233 * Called when the playlists menu item is selected
1234 */
1235 void playlist_window_create(gpointer attribute((unused)) callback_data,
1236 guint attribute((unused)) callback_action,
1237 GtkWidget attribute((unused)) *menu_item) {
1238 /* If the window already exists, raise it */
1239 if(playlist_window) {
1240 gtk_window_present(GTK_WINDOW(playlist_window));
1241 return;
1242 }
1243 /* Create the window */
1244 playlist_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1245 gtk_widget_set_style(playlist_window, tool_style);
1246 g_signal_connect(playlist_window, "destroy",
1247 G_CALLBACK(playlist_window_destroyed), &playlist_window);
1248 gtk_window_set_title(GTK_WINDOW(playlist_window), "Playlists Management");
1249 /* TODO loads of this is very similar to (copied from!) users.c - can we
1250 * de-dupe? */
1251 /* Keyboard shortcuts */
1252 g_signal_connect(playlist_window, "key-press-event",
1253 G_CALLBACK(playlist_window_keypress), 0);
1254 /* default size is too small */
1255 gtk_window_set_default_size(GTK_WINDOW(playlist_window), 640, 320);
1256
1257 GtkWidget *hbox = gtk_hbox_new(FALSE, 0);
1258 gtk_box_pack_start(GTK_BOX(hbox), playlist_picker_create(),
1259 FALSE/*expand*/, FALSE, 0);
1260 gtk_box_pack_start(GTK_BOX(hbox), gtk_event_box_new(),
1261 FALSE/*expand*/, FALSE, 2);
1262 gtk_box_pack_start(GTK_BOX(hbox), playlists_editor_create(),
1263 TRUE/*expand*/, TRUE/*fill*/, 0);
1264
1265 gtk_container_add(GTK_CONTAINER(playlist_window), frame_widget(hbox, NULL));
1266 gtk_widget_show_all(playlist_window);
1267 }
1268
1269 /** @brief Keypress handler */
1270 static gboolean playlist_window_keypress(GtkWidget attribute((unused)) *widget,
1271 GdkEventKey *event,
1272 gpointer attribute((unused)) user_data) {
1273 if(event->state)
1274 return FALSE;
1275 switch(event->keyval) {
1276 case GDK_Escape:
1277 gtk_widget_destroy(playlist_window);
1278 return TRUE;
1279 default:
1280 return FALSE;
1281 }
1282 }
1283
1284 /** @brief Called when the playlist window is destroyed */
1285 static void playlist_window_destroyed(GtkWidget attribute((unused)) *widget,
1286 GtkWidget **widget_pointer) {
1287 destroy_queuelike(&ql_playlist);
1288 playlist_picker_destroy();
1289 *widget_pointer = NULL;
1290 }
1291
1292 /** @brief Initialize playlist support */
1293 void playlists_init(void) {
1294 /* We re-get all playlists upon any change... */
1295 event_register("playlist-created", playlist_list_update, 0);
1296 event_register("playlist-deleted", playlist_list_update, 0);
1297 /* ...and on reconnection */
1298 event_register("log-connected", playlist_list_update, 0);
1299 /* ...and from time to time */
1300 event_register("periodic-slow", playlist_list_update, 0);
1301 /* ...and at startup */
1302 playlist_list_update(0, 0, 0);
1303
1304 /* Update the playlists menu when the set of playlists changes */
1305 event_register("playlists-updated", playlist_menu_changed, 0);
1306 /* Update the new-playlist OK button when the set of playlists changes */
1307 event_register("playlists-updated", playlist_new_changed, 0);
1308 /* Update the list of playlists in the edit window when the set changes */
1309 event_register("playlists-updated", playlist_picker_fill, 0);
1310 /* Update the displayed playlist when it is modified */
1311 event_register("playlist-modified", playlist_editor_fill, 0);
1312 /* Update the shared/public/etc buttons when a playlist is modified */
1313 event_register("playlist-modified", playlist_editor_set_buttons, 0);
1314 }
1315
1316 /*
1317 Local Variables:
1318 c-basic-offset:2
1319 comment-column:40
1320 fill-column:79
1321 indent-tabs-mode:nil
1322 End:
1323 */