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[kugel-rb.git] / apps / playlist_viewer.c
blobe6aa75701d17da2e5041fe56b92b445769d85700
1 /***************************************************************************
3 * __________ __ ___.
4 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
5 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
6 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
7 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
8 * \/ \/ \/ \/ \/
9 * $Id$
11 * Copyright (C) 2003 Hardeep Sidhu
13 * All files in this archive are subject to the GNU General Public License.
14 * See the file COPYING in the source tree root for full license agreement.
16 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
17 * KIND, either express or implied.
19 ****************************************************************************/
21 * Kevin Ferrare 2005/10/16
22 * multi-screen support, rewrote a lot of code
24 #include <string.h>
25 #include <sprintf.h>
26 #include "playlist.h"
27 #include "audio.h"
28 #include "screens.h"
29 #include "status.h"
30 #include "settings.h"
31 #include "icons.h"
32 #include "menu.h"
33 #include "plugin.h"
34 #include "keyboard.h"
35 #include "filetypes.h"
36 #include "onplay.h"
37 #include "talk.h"
38 #include "misc.h"
39 #include "action.h"
40 #include "debug.h"
41 #include "backlight.h"
43 #include "lang.h"
45 #include "playlist_viewer.h"
46 #include "playlist_catalog.h"
47 #include "icon.h"
48 #include "list.h"
49 #include "statusbar.h"
50 #include "splash.h"
51 #include "playlist_menu.h"
52 #include "action.h"
54 /* Maximum number of tracks we can have loaded at one time */
55 #define MAX_PLAYLIST_ENTRIES 200
57 /* The number of items between the selected one and the end/start of
58 * the buffer under which the buffer must reload */
59 #define MIN_BUFFER_MARGIN (screens[0].nb_lines+1)
61 /* Information about a specific track */
62 struct playlist_entry {
63 char *name; /* Formatted track name */
64 int index; /* Playlist index */
65 int display_index; /* Display index */
66 bool queued; /* Is track queued? */
67 bool skipped; /* Is track marked as bad? */
70 enum direction
72 FORWARD,
73 BACKWARD
76 struct playlist_buffer
78 char *name_buffer; /* Buffer used to store track names */
79 int buffer_size; /* Size of name buffer */
81 int first_index; /* Real index of first track loaded inside
82 the buffer */
84 enum direction direction; /* Direction of the buffer (if the buffer
85 was loaded BACKWARD, the last track in
86 the buffer has a real index < to the
87 real index of the the first track)*/
89 struct playlist_entry tracks[MAX_PLAYLIST_ENTRIES];
90 int num_loaded; /* Number of track entries loaded in buffer */
93 /* Global playlist viewer settings */
94 struct playlist_viewer {
95 struct playlist_info* playlist; /* playlist being viewed */
96 int num_tracks; /* Number of tracks in playlist */
97 int current_playing_track; /* Index of current playing track */
98 int selected_track; /* The selected track, relative (first is 0)*/
99 int move_track; /* Playlist index of track to move or -1 */
100 struct playlist_buffer buffer;
103 static struct playlist_viewer viewer;
105 /* Used when viewing playlists on disk */
106 static struct playlist_info temp_playlist;
108 static void playlist_buffer_init(struct playlist_buffer *pb, char *names_buffer,
109 int names_buffer_size);
110 static void playlist_buffer_load_entries(struct playlist_buffer * pb, int index,
111 enum direction direction);
112 static int playlist_entry_load(struct playlist_entry *entry, int index,
113 char* name_buffer, int remaining_size);
115 static struct playlist_entry * playlist_buffer_get_track(struct playlist_buffer *pb,
116 int index);
118 static bool playlist_viewer_init(struct playlist_viewer * viewer,
119 char* filename, bool reload);
121 static void format_name(char* dest, const char* src);
122 static void format_line(const struct playlist_entry* track, char* str,
123 int len);
125 static bool update_playlist(bool force);
126 static int onplay_menu(int index);
127 static bool viewer_menu(void);
128 static int save_playlist_func(void);
130 static void playlist_buffer_init(struct playlist_buffer *pb, char *names_buffer,
131 int names_buffer_size)
133 pb->name_buffer=names_buffer;
134 pb->buffer_size=names_buffer_size;
135 pb->first_index=0;
136 pb->num_loaded=0;
140 * Loads the entries following 'index' in the playlist buffer
142 static void playlist_buffer_load_entries(struct playlist_buffer *pb, int index,
143 enum direction direction)
145 int num_entries = viewer.num_tracks;
146 char* p = pb->name_buffer;
147 int remaining = pb->buffer_size;
148 int i;
150 pb->first_index = index;
151 if (num_entries > MAX_PLAYLIST_ENTRIES)
152 num_entries = MAX_PLAYLIST_ENTRIES;
154 for(i=0; i<num_entries; i++)
156 int len = playlist_entry_load(&(pb->tracks[i]), index, p, remaining);
157 if (len < 0)
159 /* Out of name buffer space */
160 num_entries = i;
161 break;
164 p += len;
165 remaining -= len;
167 if(direction==FORWARD)
168 index++;
169 else
170 index--;
171 index+=viewer.num_tracks;
172 index%=viewer.num_tracks;
174 pb->direction=direction;
175 pb->num_loaded = i;
178 static void playlist_buffer_load_entries_screen(struct playlist_buffer * pb,
179 enum direction direction)
181 if(direction==FORWARD)
183 int min_start=viewer.selected_track-2*screens[0].nb_lines;
184 while(min_start<0)
185 min_start+=viewer.num_tracks;
186 min_start %= viewer.num_tracks;
187 playlist_buffer_load_entries(pb, min_start, FORWARD);
189 else
191 int max_start=viewer.selected_track+2*screens[0].nb_lines;
192 max_start%=viewer.num_tracks;
193 playlist_buffer_load_entries(pb, max_start, BACKWARD);
197 static int playlist_entry_load(struct playlist_entry *entry, int index,
198 char* name_buffer, int remaining_size)
200 struct playlist_track_info info;
201 int len;
203 /* Playlist viewer orders songs based on display index. We need to
204 convert to real playlist index to access track */
205 index = (index + playlist_get_first_index(viewer.playlist)) %
206 viewer.num_tracks;
207 if (playlist_get_track_info(viewer.playlist, index, &info) < 0)
208 return -1;
210 len = strlen(info.filename) + 1;
212 if (len <= remaining_size)
214 strcpy(name_buffer, info.filename);
216 entry->name = name_buffer;
217 entry->index = info.index;
218 entry->display_index = info.display_index;
219 entry->queued = info.attr & PLAYLIST_ATTR_QUEUED;
220 entry->skipped = info.attr & PLAYLIST_ATTR_SKIPPED;
221 return len;
223 return -1;
226 static int playlist_buffer_get_index(struct playlist_buffer *pb, int index )
228 int buffer_index;
229 if(pb->direction==FORWARD)
231 if(index>=pb->first_index)
232 buffer_index=index-pb->first_index;
233 else /* rotation : track0 in buffer + requested track */
234 buffer_index=(viewer.num_tracks-pb->first_index)+(index);
236 else
238 if(index<=pb->first_index)
239 buffer_index=pb->first_index-index;
240 else /* rotation : track0 in buffer + dist from the last track
241 to the requested track (num_tracks-requested track) */
242 buffer_index=(pb->first_index)+(viewer.num_tracks-index);
244 return(buffer_index);
247 #define distance(a, b) \
248 a>b? (a) - (b) : (b) - (a)
249 static bool playlist_buffer_needs_reload(struct playlist_buffer* pb, int track_index)
251 if(pb->num_loaded==viewer.num_tracks)
252 return(false);
253 int selected_index=playlist_buffer_get_index(pb, track_index);
254 int first_buffer_index=playlist_buffer_get_index(pb, pb->first_index);
255 int distance_beginning=distance(selected_index, first_buffer_index);
256 if(distance_beginning<MIN_BUFFER_MARGIN)
257 return(true);
259 if(pb->num_loaded - distance_beginning < MIN_BUFFER_MARGIN)
260 return(true);
261 return(false);
264 static struct playlist_entry * playlist_buffer_get_track(struct playlist_buffer *pb,
265 int index)
267 int buffer_index=playlist_buffer_get_index(pb, index);
268 return(&(pb->tracks[buffer_index]));
271 /* Initialize the playlist viewer. */
272 static bool playlist_viewer_init(struct playlist_viewer * viewer,
273 char* filename, bool reload)
275 char* buffer;
276 size_t buffer_size;
277 bool is_playing = audio_status() & (AUDIO_STATUS_PLAY | AUDIO_STATUS_PAUSE);
278 bool have_list = filename || is_playing;
279 if (!have_list && (global_status.resume_index != -1))
281 /* Try to restore the list from control file */
282 have_list = (playlist_resume() != -1);
284 if (!have_list)
286 /* Nothing to view, exit */
287 gui_syncsplash(HZ, str(LANG_CATALOG_NO_PLAYLISTS));
288 return false;
291 buffer = plugin_get_buffer(&buffer_size);
292 if (!buffer)
293 return false;
295 if (!filename)
296 viewer->playlist = NULL;
297 else
299 /* Viewing playlist on disk */
300 char *dir, *file, *temp_ptr;
301 char *index_buffer = NULL;
302 ssize_t index_buffer_size = 0;
304 viewer->playlist = &temp_playlist;
306 /* Separate directory from filename */
307 temp_ptr = strrchr(filename+1,'/');
308 if (temp_ptr)
310 *temp_ptr = 0;
311 dir = filename;
312 file = temp_ptr + 1;
314 else
316 dir = "/";
317 file = filename+1;
320 if (is_playing)
322 /* Something is playing, use half the plugin buffer for playlist
323 indices */
324 index_buffer_size = buffer_size / 2;
325 index_buffer = buffer;
328 playlist_create_ex(viewer->playlist, dir, file, index_buffer,
329 index_buffer_size, buffer+index_buffer_size,
330 buffer_size-index_buffer_size);
332 if (temp_ptr)
333 *temp_ptr = '/';
335 buffer += index_buffer_size;
336 buffer_size -= index_buffer_size;
338 playlist_buffer_init(&viewer->buffer, buffer, buffer_size );
340 viewer->move_track = -1;
342 if (!reload)
344 if (viewer->playlist)
345 viewer->selected_track = 0;
346 else
347 viewer->selected_track = playlist_get_display_index() - 1;
350 if (!update_playlist(true))
351 return false;
352 return true;
355 /* Format trackname for display purposes */
356 static void format_name(char* dest, const char* src)
358 switch (global_settings.playlist_viewer_track_display)
360 case 0:
361 default:
363 /* Only display the filename */
364 char* p = strrchr(src, '/');
366 strcpy(dest, p+1);
368 /* Remove the extension */
369 char* q = strrchr(dest, '.');
371 if (q != NULL)
372 *q = '\0';
374 break;
376 case 1:
377 /* Full path */
378 strcpy(dest, src);
379 break;
383 /* Format display line */
384 static void format_line(const struct playlist_entry* track, char* str,
385 int len)
387 char name[MAX_PATH];
388 char *skipped = "";
390 format_name(name, track->name);
392 if (track->skipped)
393 skipped = "(ERR) ";
395 if (global_settings.playlist_viewer_indices)
396 /* Display playlist index */
397 snprintf(str, len, "%d. %s%s", track->display_index, skipped, name);
398 else
399 snprintf(str, len, "%s%s", skipped, name);
403 /* Update playlist in case something has changed or forced */
404 static bool update_playlist(bool force)
406 if (!viewer.playlist)
407 playlist_get_resume_info(&viewer.current_playing_track);
408 else
409 viewer.current_playing_track = -1;
410 int nb_tracks=playlist_amount_ex(viewer.playlist);
411 force=force || nb_tracks != viewer.num_tracks;
412 if (force)
414 /* Reload tracks */
415 viewer.num_tracks = nb_tracks;
416 if (viewer.num_tracks <= 0)
417 return false;
418 playlist_buffer_load_entries_screen(&viewer.buffer, FORWARD);
419 if (viewer.buffer.num_loaded <= 0)
420 return false;
422 return true;
425 /* Menu of playlist commands. Invoked via ON+PLAY on main viewer screen.
426 Returns -1 if USB attached, 0 if no playlist change, and 1 if playlist
427 changed. */
428 static int onplay_menu(int index)
430 int result, ret = 0;
431 struct playlist_entry * current_track=
432 playlist_buffer_get_track(&viewer.buffer, index);
433 MENUITEM_STRINGLIST(menu_items, ID2P(LANG_PLAYLIST_MENU), NULL,
434 ID2P(LANG_REMOVE), ID2P(LANG_MOVE),
435 ID2P(LANG_CATALOG_ADD_TO), ID2P(LANG_CATALOG_ADD_TO_NEW));
436 bool current = (current_track->index == viewer.current_playing_track);
438 result = do_menu(&menu_items, NULL);
439 if (result == MENU_ATTACHED_USB)
441 ret = -1;
443 else if (result >= 0)
445 /* Abort current move */
446 viewer.move_track = -1;
448 switch (result)
450 case 0:
451 /* delete track */
452 playlist_delete(viewer.playlist, current_track->index);
453 if (current)
455 if (playlist_amount_ex(viewer.playlist) <= 0)
456 audio_stop();
457 else
459 /* Start playing new track except if it's the lasttrack
460 track in the playlist and repeat mode is disabled */
461 current_track =
462 playlist_buffer_get_track(&viewer.buffer, index);
463 if (current_track->display_index!=viewer.num_tracks ||
464 global_settings.repeat_mode == REPEAT_ALL)
466 #if CONFIG_CODEC != SWCODEC
467 talk_buffer_steal(); /* will use the mp3 buffer */
468 #endif
469 audio_play(0);
470 viewer.current_playing_track = -1;
474 ret = 1;
475 break;
476 case 1:
477 /* move track */
478 viewer.move_track = current_track->index;
479 ret = 0;
480 break;
481 case 2: /* add to catalog */
482 case 3: /* add to a new one */
483 catalog_add_to_a_playlist(current_track->name,
484 FILE_ATTR_AUDIO,
485 result==3 );
486 ret = 0;
487 break;
490 return ret;
493 /* Menu of viewer options. Invoked via F1(r) or Menu(p). */
494 MENUITEM_SETTING(show_icons, &global_settings.playlist_viewer_icons, NULL);
495 MENUITEM_SETTING(show_indices, &global_settings.playlist_viewer_indices, NULL);
496 MENUITEM_SETTING(track_display,
497 &global_settings.playlist_viewer_track_display, NULL);
498 MENUITEM_FUNCTION(save_playlist_item, 0, ID2P(LANG_SAVE_DYNAMIC_PLAYLIST),
499 save_playlist_func, 0, NULL, Icon_NOICON);
500 MAKE_MENU(viewer_settings_menu, ID2P(LANG_PLAYLISTVIEWER_SETTINGS),
501 NULL, Icon_Playlist,
502 &show_icons, &show_indices, &track_display, &save_playlist_item);
503 static bool viewer_menu(void)
505 return do_menu(&viewer_settings_menu, NULL) == MENU_ATTACHED_USB;
508 /* Save playlist to disk */
509 static int save_playlist_func(void)
511 save_playlist_screen(viewer.playlist);
512 return 0;
515 /* View current playlist */
516 bool playlist_viewer(void)
518 return playlist_viewer_ex(NULL);
521 static char *playlist_callback_name(int selected_item, void *data, char *buffer)
523 struct playlist_viewer * local_viewer = (struct playlist_viewer *)data;
524 struct playlist_entry *track=
525 playlist_buffer_get_track(&(local_viewer->buffer), selected_item);
526 format_line(track, buffer, MAX_PATH);
527 return(buffer);
531 static int playlist_callback_icons(int selected_item, void *data)
533 struct playlist_viewer * local_viewer=(struct playlist_viewer *)data;
534 struct playlist_entry *track=
535 playlist_buffer_get_track(&(local_viewer->buffer), selected_item);
536 if (track->index == local_viewer->current_playing_track)
538 /* Current playing track */
539 return Icon_Audio;
541 else if (track->index == local_viewer->move_track)
543 /* Track we are moving */
544 return Icon_Moving;
546 else if (track->queued)
548 /* Queued track */
549 return Icon_Queued;
551 else
552 return Icon_NOICON;
555 /* Main viewer function. Filename identifies playlist to be viewed. If NULL,
556 view current playlist. */
557 bool playlist_viewer_ex(char* filename)
559 bool ret = false; /* return value */
560 bool exit=false; /* exit viewer */
561 int button;
562 struct gui_synclist playlist_lists;
563 if (!playlist_viewer_init(&viewer, filename, false))
564 goto exit;
566 gui_synclist_init(&playlist_lists, playlist_callback_name, &viewer, false, 1);
567 gui_synclist_set_icon_callback(&playlist_lists,
568 global_settings.playlist_viewer_icons?
569 &playlist_callback_icons:NULL);
570 gui_synclist_set_nb_items(&playlist_lists, viewer.num_tracks);
571 gui_synclist_select_item(&playlist_lists, viewer.selected_track);
572 gui_synclist_set_title(&playlist_lists, str(LANG_PLAYLIST_MENU), Icon_Playlist);
573 gui_synclist_draw(&playlist_lists);
574 action_signalscreenchange();
575 while (!exit)
577 int track;
578 if (global_status.resume_index == -1)
580 /* Play has stopped */
581 gui_syncsplash(HZ, str(LANG_END_PLAYLIST_RECORDER));
582 goto exit;
585 if (viewer.move_track != -1)
586 gui_synclist_flash(&playlist_lists);
588 if (!viewer.playlist)
589 playlist_get_resume_info(&track);
590 else
591 track = -1;
593 if (track != viewer.current_playing_track ||
594 playlist_amount_ex(viewer.playlist) != viewer.num_tracks)
596 /* Playlist has changed (new track started?) */
597 if (!update_playlist(false))
598 goto exit;
599 gui_synclist_set_nb_items(&playlist_lists, viewer.num_tracks);
600 /* Abort move on playlist change */
601 viewer.move_track = -1;
602 gui_synclist_draw(&playlist_lists);
605 /* Timeout so we can determine if play status has changed */
606 button = get_action(CONTEXT_TREE,HZ/2);
607 int list_action;
608 if( (list_action=gui_synclist_do_button(&playlist_lists, button,LIST_WRAP_UNLESS_HELD))!=0 )
610 viewer.selected_track=gui_synclist_get_sel_pos(&playlist_lists);
611 if(playlist_buffer_needs_reload(&viewer.buffer,
612 viewer.selected_track))
613 playlist_buffer_load_entries_screen(&viewer.buffer,
614 list_action==ACTION_STD_NEXT?
615 FORWARD
617 BACKWARD
620 switch (button)
622 case ACTION_TREE_WPS:
623 case ACTION_STD_CANCEL:
624 exit = true;
625 break;
626 case ACTION_STD_OK:
628 struct playlist_entry * current_track =
629 playlist_buffer_get_track(&viewer.buffer,
630 viewer.selected_track);
631 if (viewer.move_track >= 0)
633 /* Move track */
634 int ret_val;
636 ret_val = playlist_move(viewer.playlist, viewer.move_track,
637 current_track->index);
638 if (ret_val < 0)
639 gui_syncsplash(HZ, str(LANG_MOVE_FAILED));
641 update_playlist(true);
642 viewer.move_track = -1;
644 else if (!viewer.playlist)
646 /* play new track */
647 playlist_start(current_track->index, 0);
648 update_playlist(false);
650 else
652 /* New playlist */
653 if (playlist_set_current(viewer.playlist) < 0)
654 goto exit;
656 playlist_start(current_track->index, 0);
658 /* Our playlist is now the current list */
659 if (!playlist_viewer_init(&viewer, NULL, true))
660 goto exit;
662 gui_synclist_draw(&playlist_lists);
664 break;
666 case ACTION_STD_CONTEXT:
668 /* ON+PLAY menu */
669 int ret_val;
671 ret_val = onplay_menu(viewer.selected_track);
673 if (ret_val < 0)
675 ret = true;
676 goto exit;
678 else if (ret > 0)
680 /* Playlist changed */
681 gui_synclist_del_item(&playlist_lists);
682 update_playlist(true);
683 if (viewer.num_tracks <= 0)
684 exit = true;
685 if(viewer.selected_track >= viewer.num_tracks)
686 viewer.selected_track = viewer.num_tracks-1;
688 gui_synclist_draw(&playlist_lists);
689 break;
691 case ACTION_STD_MENU:
692 if (viewer_menu())
694 ret = true;
695 goto exit;
697 gui_synclist_set_icon_callback(
698 &playlist_lists,
699 global_settings.playlist_viewer_icons?
700 &playlist_callback_icons:NULL
702 gui_synclist_draw(&playlist_lists);
703 break;
705 case ACTION_NONE:
706 gui_syncstatusbar_draw(&statusbars, false);
707 break;
709 default:
710 if(default_event_handler(button) == SYS_USB_CONNECTED)
712 ret = true;
713 goto exit;
715 break;
719 exit:
720 if (viewer.playlist)
721 playlist_close(viewer.playlist);
722 action_signalscreenchange();
723 return ret;
726 static char *playlist_search_callback_name(int selected_item, void * data, char *buffer)
728 int *found_indicies = (int*)data;
729 static struct playlist_track_info track;
730 playlist_get_track_info(viewer.playlist,found_indicies[selected_item],&track);
731 format_name(buffer,track.filename);
732 return(buffer);
735 bool search_playlist(void)
737 char search_str[32] = "";
738 bool ret = false, exit = false;
739 int i, playlist_count;
740 int found_indicies[MAX_PLAYLIST_ENTRIES],found_indicies_count = 0;
741 int button;
742 struct gui_synclist playlist_lists;
743 struct playlist_track_info track;
745 if (!playlist_viewer_init(&viewer, 0, false))
746 return ret;
747 if (kbd_input(search_str,sizeof(search_str)) == -1)
748 return ret;
749 lcd_clear_display();
750 playlist_count = playlist_amount_ex(viewer.playlist);
751 for (i=0;(i<playlist_count)&&(found_indicies_count<MAX_PLAYLIST_ENTRIES);i++)
753 gui_syncsplash(0, str(LANG_PLAYLIST_SEARCH_MSG),found_indicies_count,
754 #if CONFIG_KEYPAD == PLAYER_PAD
755 str(LANG_STOP_ABORT)
756 #else
757 str(LANG_OFF_ABORT)
758 #endif
760 if (action_userabort(TIMEOUT_NOBLOCK))
761 return ret;
762 playlist_get_track_info(viewer.playlist,i,&track);
763 if (strcasestr(track.filename,search_str))
765 found_indicies[found_indicies_count++] = track.index;
768 if (!found_indicies_count)
770 return ret;
772 backlight_on();
773 gui_synclist_init(&playlist_lists, playlist_search_callback_name,
774 found_indicies, false, 1);
775 gui_synclist_set_icon_callback(&playlist_lists, NULL);
776 gui_synclist_set_nb_items(&playlist_lists, found_indicies_count);
777 gui_synclist_select_item(&playlist_lists, 0);
778 gui_synclist_draw(&playlist_lists);
779 while (!exit)
781 button = get_action(CONTEXT_LIST,TIMEOUT_BLOCK);
782 if (gui_synclist_do_button(&playlist_lists, button,LIST_WRAP_UNLESS_HELD))
783 continue;
784 switch (button)
786 case ACTION_STD_CANCEL:
787 exit = true;
788 break;
790 case ACTION_STD_OK:
791 playlist_start(
792 found_indicies[gui_synclist_get_sel_pos(&playlist_lists)]
793 ,0);
794 exit = 1;
795 break;
796 case ACTION_NONE:
797 break;
798 default:
799 if(default_event_handler(button) == SYS_USB_CONNECTED)
801 ret = true;
802 exit = true;
804 break;
807 action_signalscreenchange();
808 return ret;