src/screen_play.c

   1 /*
   2  * (c) 2004 by Kalle Wallin <kaw@linux.se>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  *
  17  */
  18
  19 #include "config.h"
  20 #include "i18n.h"
  21 #include "options.h"
  22 #include "support.h"
  23 #include "mpdclient.h"
  24 #include "utils.h"
  25 #include "strfsong.h"
  26 #include "wreadln.h"
  27 #include "command.h"
  28 #include "colors.h"
  29 #include "screen.h"
  30 #include "screen_utils.h"
  31 #include "screen_play.h"
  32 #include "gcc.h"
  33
  34 #include <ctype.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <time.h>
  38 #include <glib.h>
  39
  40 #define MAX_SONG_LENGTH 512
  41
  42 #ifndef NCMPC_MINI
  43 typedef struct
  44 {
  45         GList **list;
  46         GList **dir_list;
  47         mpdclient_t *c;
  48 } completion_callback_data_t;
  49 #endif
  50
  51 static struct mpdclient_playlist *playlist;
  52 static int current_song_id = -1;
  53 static list_window_t *lw = NULL;
  54 static guint timer_hide_cursor_id;
  55
  56 static void
  57 play_paint(void);
  58
  59 static void
  60 playlist_repaint(void)
  61 {
  62         play_paint();
  63         wrefresh(lw->w);
  64 }
  65
  66 static void
  67 playlist_repaint_if_active(void)
  68 {
  69         if (screen_is_visible(&screen_playlist))
  70                 playlist_repaint();
  71 }
  72
  73 static void
  74 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
  75 {
  76         switch (event) {
  77         case PLAYLIST_EVENT_DELETE:
  78                 break;
  79         case PLAYLIST_EVENT_MOVE:
  80                 lw->selected = *((int *) data);
  81                 if (lw->selected < lw->start)
  82                         lw->start--;
  83                 break;
  84         default:
  85                 break;
  86         }
  87
  88         list_window_check_selected(lw, c->playlist.list->len);
  89         playlist_repaint_if_active();
  90 }
  91
  92 static const char *
  93 list_callback(unsigned idx, int *highlight, mpd_unused void *data)
  94 {
  95         static char songname[MAX_SONG_LENGTH];
  96         mpd_Song *song;
  97
  98         if (playlist == NULL || idx >= playlist_length(playlist))
  99                 return NULL;
 100
 101         song = playlist_get(playlist, idx);
 102         if (song->id == current_song_id)
 103                 *highlight = 1;
 104
 105         strfsong(songname, MAX_SONG_LENGTH, options.list_format, song);
 106         return songname;
 107 }
 108
 109 static void
 110 center_playing_item(mpdclient_t *c)
 111 {
 112         unsigned length = c->playlist.list->len;
 113         unsigned offset = lw->selected - lw->start;
 114         int idx;
 115
 116         if (!c->song || length < lw->rows ||
 117             c->status == NULL || IS_STOPPED(c->status->state))
 118                 return;
 119
 120         /* try to center the song that are playing */
 121         idx = playlist_get_index(c, c->song);
 122         if (idx < 0)
 123                 return;
 124
 125         list_window_center(lw, length, idx);
 126
 127         /* make sure the cursor is in the window */
 128         lw->selected = lw->start+offset;
 129         list_window_check_selected(lw, length);
 130 }
 131
 132 #ifndef NCMPC_MINI
 133 static void
 134 save_pre_completion_cb(GCompletion *gcmp, mpd_unused gchar *line, void *data)
 135 {
 136         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 137         GList **list = tmp->list;
 138         mpdclient_t *c = tmp->c;
 139
 140         if( *list == NULL ) {
 141                 /* create completion list */
 142                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_PLAYLIST);
 143                 g_completion_add_items(gcmp, *list);
 144         }
 145 }
 146
 147 static void
 148 save_post_completion_cb(mpd_unused GCompletion *gcmp, mpd_unused gchar *line,
 149                         GList *items, mpd_unused void *data)
 150 {
 151         if (g_list_length(items) >= 1)
 152                 screen_display_completion_list(items);
 153 }
 154 #endif
 155
 156 int
 157 playlist_save(mpdclient_t *c, char *name, char *defaultname)
 158 {
 159         gchar *filename;
 160         gint error;
 161 #ifndef NCMPC_MINI
 162         GCompletion *gcmp;
 163         GList *list = NULL;
 164         completion_callback_data_t data;
 165 #endif
 166
 167 #ifdef NCMPC_MINI
 168         (void)defaultname;
 169 #endif
 170
 171 #ifndef NCMPC_MINI
 172         if (name == NULL) {
 173                 /* initialize completion support */
 174                 gcmp = g_completion_new(NULL);
 175                 g_completion_set_compare(gcmp, strncmp);
 176                 data.list = &list;
 177                 data.dir_list = NULL;
 178                 data.c = c;
 179                 wrln_completion_callback_data = &data;
 180                 wrln_pre_completion_callback = save_pre_completion_cb;
 181                 wrln_post_completion_callback = save_post_completion_cb;
 182
 183
 184                 /* query the user for a filename */
 185                 filename = screen_readln(screen.status_window.w,
 186                                          _("Save playlist as: "),
 187                                          defaultname,
 188                                          NULL,
 189                                          gcmp);
 190
 191                 /* destroy completion support */
 192                 wrln_completion_callback_data = NULL;
 193                 wrln_pre_completion_callback = NULL;
 194                 wrln_post_completion_callback = NULL;
 195                 g_completion_free(gcmp);
 196                 list = string_list_free(list);
 197                 if( filename )
 198                         filename=g_strstrip(filename);
 199         } else
 200 #endif
 201                         filename=g_strdup(name);
 202
 203         if (filename == NULL || filename[0] == '\0')
 204                 return -1;
 205
 206         /* send save command to mpd */
 207         if ((error = mpdclient_cmd_save_playlist(c, filename))) {
 208                 gint code = GET_ACK_ERROR_CODE(error);
 209
 210                 if (code == MPD_ACK_ERROR_EXIST) {
 211                         char *buf;
 212                         int key;
 213
 214                         buf = g_strdup_printf(_("Replace %s [%s/%s] ? "),
 215                                               filename, YES, NO);
 216                         key = tolower(screen_getch(screen.status_window.w,
 217                                                    buf));
 218                         g_free(buf);
 219
 220                         if (key == YES[0]) {
 221                                 if (mpdclient_cmd_delete_playlist(c, filename)) {
 222                                         g_free(filename);
 223                                         return -1;
 224                                 }
 225
 226                                 error = playlist_save(c, filename, NULL);
 227                                 g_free(filename);
 228                                 return error;
 229                         }
 230
 231                         screen_status_printf(_("Aborted!"));
 232                 }
 233
 234                 g_free(filename);
 235                 return -1;
 236         }
 237
 238         /* success */
 239         screen_status_printf(_("Saved %s"), filename);
 240         g_free(filename);
 241         return 0;
 242 }
 243
 244 #ifndef NCMPC_MINI
 245 static void add_dir(GCompletion *gcmp, gchar *dir, GList **dir_list,
 246                     GList **list, mpdclient_t *c)
 247 {
 248         g_completion_remove_items(gcmp, *list);
 249         *list = string_list_remove(*list, dir);
 250         *list = gcmp_list_from_path(c, dir, *list, GCMP_TYPE_RFILE);
 251         g_completion_add_items(gcmp, *list);
 252         *dir_list = g_list_append(*dir_list, g_strdup(dir));
 253 }
 254
 255 static void add_pre_completion_cb(GCompletion *gcmp, gchar *line, void *data)
 256 {
 257         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 258         GList **dir_list = tmp->dir_list;
 259         GList **list = tmp->list;
 260         mpdclient_t *c = tmp->c;
 261
 262         if (*list == NULL) {
 263                 /* create initial list */
 264                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_RFILE);
 265                 g_completion_add_items(gcmp, *list);
 266         } else if (line && line[0] && line[strlen(line)-1]=='/' &&
 267                    string_list_find(*dir_list, line) == NULL) {
 268                 /* add directory content to list */
 269                 add_dir(gcmp, line, dir_list, list, c);
 270         }
 271 }
 272
 273 static void add_post_completion_cb(GCompletion *gcmp, gchar *line,
 274                                    GList *items, void *data)
 275 {
 276         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 277         GList **dir_list = tmp->dir_list;
 278         GList **list = tmp->list;
 279         mpdclient_t *c = tmp->c;
 280
 281         if (g_list_length(items) >= 1)
 282                 screen_display_completion_list(items);
 283
 284         if (line && line[0] && line[strlen(line) - 1] == '/' &&
 285             string_list_find(*dir_list, line) == NULL) {
 286                 /* add directory content to list */
 287                 add_dir(gcmp, line, dir_list, list, c);
 288         }
 289 }
 290 #endif
 291
 292 static int
 293 handle_add_to_playlist(mpdclient_t *c)
 294 {
 295         gchar *path;
 296 #ifndef NCMPC_MINI
 297         GCompletion *gcmp;
 298         GList *list = NULL;
 299         GList *dir_list = NULL;
 300         completion_callback_data_t data;
 301
 302         /* initialize completion support */
 303         gcmp = g_completion_new(NULL);
 304         g_completion_set_compare(gcmp, strncmp);
 305         data.list = &list;
 306         data.dir_list = &dir_list;
 307         data.c = c;
 308         wrln_completion_callback_data = &data;
 309         wrln_pre_completion_callback = add_pre_completion_cb;
 310         wrln_post_completion_callback = add_post_completion_cb;
 311 #endif
 312
 313         /* get path */
 314         path = screen_readln(screen.status_window.w,
 315                              _("Add: "),
 316                              NULL,
 317                              NULL,
 318 #ifdef NCMPC_MINI
 319                              NULL
 320 #else
 321                              gcmp
 322 #endif
 323                              );
 324
 325         /* destroy completion data */
 326 #ifndef NCMPC_MINI
 327         wrln_completion_callback_data = NULL;
 328         wrln_pre_completion_callback = NULL;
 329         wrln_post_completion_callback = NULL;
 330         g_completion_free(gcmp);
 331         string_list_free(list);
 332         string_list_free(dir_list);
 333 #endif
 334
 335         /* add the path to the playlist */
 336         if (path && path[0])
 337                 mpdclient_cmd_add_path(c, path);
 338
 339         return 0;
 340 }
 341
 342 static void
 343 play_init(WINDOW *w, int cols, int rows)
 344 {
 345         lw = list_window_init(w, cols, rows);
 346 }
 347
 348 static gboolean
 349 timer_hide_cursor(gpointer data)
 350 {
 351         struct mpdclient *c = data;
 352
 353         assert(options.hide_cursor > 0);
 354         assert(timer_hide_cursor_id != 0);
 355
 356         timer_hide_cursor_id = 0;
 357
 358         /* hide the cursor when mpd is playing and the user is inactive */
 359
 360         if (c->status != NULL && c->status->state == MPD_STATUS_STATE_PLAY) {
 361                 lw->flags |= LW_HIDE_CURSOR;
 362                 playlist_repaint();
 363         } else
 364                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 365                                                      timer_hide_cursor, c);
 366
 367         return FALSE;
 368 }
 369
 370 static void
 371 play_open(mpdclient_t *c)
 372 {
 373         static gboolean install_cb = TRUE;
 374
 375         playlist = &c->playlist;
 376
 377         assert(timer_hide_cursor_id == 0);
 378         if (options.hide_cursor > 0) {
 379                 lw->flags &= ~LW_HIDE_CURSOR;
 380                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 381                                                      timer_hide_cursor, c);
 382         }
 383
 384         if (install_cb) {
 385                 mpdclient_install_playlist_callback(c, playlist_changed_callback);
 386                 install_cb = FALSE;
 387         }
 388 }
 389
 390 static void
 391 play_close(void)
 392 {
 393         if (timer_hide_cursor_id != 0) {
 394                 g_source_remove(timer_hide_cursor_id);
 395                 timer_hide_cursor_id = 0;
 396         }
 397 }
 398
 399 static void
 400 play_resize(int cols, int rows)
 401 {
 402         lw->cols = cols;
 403         lw->rows = rows;
 404 }
 405
 406
 407 static void
 408 play_exit(void)
 409 {
 410         list_window_free(lw);
 411 }
 412
 413 static const char *
 414 play_title(char *str, size_t size)
 415 {
 416         if( strcmp(options.host, "localhost") == 0 )
 417                 return _("Playlist");
 418
 419         g_snprintf(str, size, _("Playlist on %s"), options.host);
 420         return str;
 421 }
 422
 423 static void
 424 play_paint(void)
 425 {
 426         list_window_paint(lw, list_callback, NULL);
 427 }
 428
 429 static void
 430 play_update(mpdclient_t *c)
 431 {
 432         static int prev_song_id = -1;
 433
 434         current_song_id = c->song != NULL && c->status != NULL &&
 435                 !IS_STOPPED(c->status->state) ? c->song->id : -1;
 436
 437         if (current_song_id != prev_song_id) {
 438                 prev_song_id = current_song_id;
 439
 440                 /* center the cursor */
 441                 if (options.auto_center && current_song_id != -1)
 442                         center_playing_item(c);
 443
 444                 playlist_repaint();
 445         }
 446 }
 447
 448 #ifdef HAVE_GETMOUSE
 449 static int
 450 handle_mouse_event(struct mpdclient *c)
 451 {
 452         int row;
 453         unsigned selected;
 454         unsigned long bstate;
 455
 456         if (screen_get_mouse_event(c, &bstate, &row) ||
 457             list_window_mouse(lw, playlist_length(playlist), bstate, row)) {
 458                 playlist_repaint();
 459                 return 1;
 460         }
 461
 462         if (bstate & BUTTON1_DOUBLE_CLICKED) {
 463                 /* stop */
 464                 screen_cmd(c, CMD_STOP);
 465                 return 1;
 466         }
 467
 468         selected = lw->start + row;
 469
 470         if (bstate & BUTTON1_CLICKED) {
 471                 /* play */
 472                 if (lw->start + row < playlist_length(playlist))
 473                         mpdclient_cmd_play(c, lw->start + row);
 474         } else if (bstate & BUTTON3_CLICKED) {
 475                 /* delete */
 476                 if (selected == lw->selected)
 477                         mpdclient_cmd_delete(c, lw->selected);
 478         }
 479
 480         lw->selected = selected;
 481         list_window_check_selected(lw, playlist_length(playlist));
 482         playlist_repaint();
 483
 484         return 1;
 485 }
 486 #endif
 487
 488 static int
 489 play_cmd(mpdclient_t *c, command_t cmd)
 490 {
 491         lw->flags &= ~LW_HIDE_CURSOR;
 492
 493         if (options.hide_cursor > 0) {
 494                 if (timer_hide_cursor_id != 0)
 495                         g_source_remove(timer_hide_cursor_id);
 496                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 497                                                      timer_hide_cursor, c);
 498         }
 499
 500         if (list_window_cmd(lw, playlist_length(&c->playlist), cmd)) {
 501                 playlist_repaint();
 502                 return 1;
 503         }
 504
 505         switch(cmd) {
 506         case CMD_PLAY:
 507                 mpdclient_cmd_play(c, lw->selected);
 508                 return 1;
 509         case CMD_DELETE:
 510                 mpdclient_cmd_delete(c, lw->selected);
 511                 return 1;
 512         case CMD_SAVE_PLAYLIST:
 513                 playlist_save(c, NULL, NULL);
 514                 return 1;
 515         case CMD_ADD:
 516                 handle_add_to_playlist(c);
 517                 return 1;
 518         case CMD_SCREEN_UPDATE:
 519                 center_playing_item(c);
 520                 playlist_repaint();
 521                 return 0;
 522
 523         case CMD_LIST_MOVE_UP:
 524                 mpdclient_cmd_move(c, lw->selected, lw->selected-1);
 525                 return 1;
 526         case CMD_LIST_MOVE_DOWN:
 527                 mpdclient_cmd_move(c, lw->selected, lw->selected+1);
 528                 return 1;
 529         case CMD_LIST_FIND:
 530         case CMD_LIST_RFIND:
 531         case CMD_LIST_FIND_NEXT:
 532         case CMD_LIST_RFIND_NEXT:
 533                 screen_find(lw, playlist_length(&c->playlist),
 534                             cmd, list_callback, NULL);
 535                 playlist_repaint();
 536                 return 1;
 537
 538 #ifdef HAVE_GETMOUSE
 539         case CMD_MOUSE_EVENT:
 540                 return handle_mouse_event(c);
 541 #endif
 542
 543 #ifdef ENABLE_LYRICS_SCREEN
 544         case CMD_SCREEN_LYRICS:
 545                 if (lw->selected < playlist_length(&c->playlist)) {
 546                         screen_lyrics_switch(c, playlist_get(&c->playlist, lw->selected));
 547                         return 1;
 548                 }
 549
 550                 break;
 551 #endif
 552
 553         default:
 554                 break;
 555         }
 556
 557         return 0;
 558 }
 559
 560 const struct screen_functions screen_playlist = {
 561         .init = play_init,
 562         .exit = play_exit,
 563         .open = play_open,
 564         .close = play_close,
 565         .resize = play_resize,
 566         .paint = play_paint,
 567         .update = play_update,
 568         .cmd = play_cmd,
 569         .get_title = play_title,
 570 };