src/screen_play.c

   1 /* ncmpc (Ncurses MPD Client)
   2  * (c) 2004-2009 The Music Player Daemon Project
   3  * Project homepage: http://musicpd.org
   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,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "screen_play.h"
  21 #include "screen_interface.h"
  22 #include "screen_file.h"
  23 #include "screen_message.h"
  24 #include "screen_find.h"
  25 #include "config.h"
  26 #include "i18n.h"
  27 #include "charset.h"
  28 #include "options.h"
  29 #include "mpdclient.h"
  30 #include "utils.h"
  31 #include "strfsong.h"
  32 #include "wreadln.h"
  33 #include "colors.h"
  34 #include "screen.h"
  35 #include "screen_utils.h"
  36 #include "screen_song.h"
  37 #include "screen_lyrics.h"
  38
  39 #ifndef NCMPC_MINI
  40 #include "hscroll.h"
  41 #endif
  42
  43 #include <mpd/client.h>
  44
  45 #include <ctype.h>
  46 #include <string.h>
  47 #include <glib.h>
  48
  49 #define MAX_SONG_LENGTH 512
  50
  51 #ifndef NCMPC_MINI
  52 typedef struct
  53 {
  54         GList **list;
  55         GList **dir_list;
  56         struct mpdclient *c;
  57 } completion_callback_data_t;
  58
  59 static struct hscroll hscroll;
  60 static guint scroll_source_id;
  61 #endif
  62
  63 static struct mpdclient_playlist *playlist;
  64 static int current_song_id = -1;
  65 static int selected_song_id = -1;
  66 static struct list_window *lw;
  67 static guint timer_hide_cursor_id;
  68
  69 static void
  70 screen_playlist_paint(void);
  71
  72 static void
  73 playlist_repaint(void)
  74 {
  75         screen_playlist_paint();
  76         wrefresh(lw->w);
  77 }
  78
  79 static const struct mpd_song *
  80 playlist_selected_song(void)
  81 {
  82         return !lw->range_selection &&
  83                 lw->selected < playlist_length(playlist)
  84                 ? playlist_get(playlist, lw->selected)
  85                 : NULL;
  86 }
  87
  88 static void
  89 playlist_save_selection(void)
  90 {
  91         selected_song_id = playlist_selected_song() != NULL
  92                 ? (int)mpd_song_get_id(playlist_selected_song())
  93                 : -1;
  94 }
  95
  96 static void
  97 playlist_restore_selection(void)
  98 {
  99         const struct mpd_song *song;
 100         int pos;
 101
 102         list_window_set_length(lw, playlist_length(playlist));
 103
 104         if (selected_song_id < 0)
 105                 /* there was no selection */
 106                 return;
 107
 108         song = playlist_selected_song();
 109         if (song != NULL &&
 110             mpd_song_get_id(song) == (unsigned)selected_song_id)
 111                 /* selection is still valid */
 112                 return;
 113
 114         pos = playlist_get_index_from_id(playlist, selected_song_id);
 115         if (pos >= 0)
 116                 list_window_set_cursor(lw, pos);
 117
 118         playlist_save_selection();
 119 }
 120
 121 #ifndef NCMPC_MINI
 122 static gboolean
 123 scroll_timer_callback(G_GNUC_UNUSED gpointer data)
 124 {
 125         scroll_source_id = 0;
 126
 127         hscroll_step(&hscroll);
 128         playlist_repaint();
 129         return false;
 130 }
 131 #endif
 132
 133 static const char *
 134 list_callback(unsigned idx, bool *highlight, char **second_column, G_GNUC_UNUSED void *data)
 135 {
 136         static char songname[MAX_SONG_LENGTH];
 137         struct mpd_song *song;
 138
 139         assert(playlist != NULL);
 140         assert(idx < playlist_length(playlist));
 141
 142         song = playlist_get(playlist, idx);
 143         if ((int)mpd_song_get_id(song) == current_song_id)
 144                 *highlight = true;
 145
 146         strfsong(songname, MAX_SONG_LENGTH, options.list_format, song);
 147
 148 #ifndef NCMPC_MINI
 149         if (second_column != NULL && mpd_song_get_duration(song) > 0) {
 150                 char duration[32];
 151                 format_duration_short(duration, sizeof(duration),
 152                                       mpd_song_get_duration(song));
 153                 *second_column = g_strdup(duration);
 154         }
 155
 156         if (idx == lw->selected)
 157         {
 158                 int second_column_len = 0;
 159                 if (second_column != NULL && *second_column != NULL)
 160                         second_column_len = strlen(*second_column);
 161                 if (options.scroll && utf8_width(songname) > (unsigned)(COLS - second_column_len - 1) )
 162                 {
 163                         static unsigned current_song;
 164                         char *tmp;
 165
 166                         if (current_song != lw->selected) {
 167                                 hscroll_reset(&hscroll);
 168                                 current_song = lw->selected;
 169                         }
 170
 171                         tmp = strscroll(&hscroll, songname, options.scroll_sep,
 172                                         MAX_SONG_LENGTH);
 173                         g_strlcpy(songname, tmp, MAX_SONG_LENGTH);
 174                         g_free(tmp);
 175
 176                         if (scroll_source_id == 0)
 177                                 scroll_source_id =
 178                                         g_timeout_add(1000,
 179                                                       scroll_timer_callback,
 180                                                       NULL);
 181                 } else {
 182                         hscroll_reset(&hscroll);
 183
 184                         if (scroll_source_id != 0) {
 185                                 g_source_remove(scroll_source_id);
 186                                 scroll_source_id = 0;
 187                         }
 188                 }
 189         }
 190 #else
 191         (void)second_column;
 192 #endif
 193
 194         return songname;
 195 }
 196
 197 static void
 198 center_playing_item(struct mpdclient *c, bool center_cursor)
 199 {
 200         const struct mpd_song *song;
 201         unsigned length = c->playlist.list->len;
 202         int idx;
 203
 204         song = mpdclient_get_current_song(c);
 205         if (song == NULL)
 206                 return;
 207
 208         /* try to center the song that are playing */
 209         idx = playlist_get_index(&c->playlist, c->song);
 210         if (idx < 0)
 211                 return;
 212
 213         if (length < lw->rows)
 214         {
 215                 if (center_cursor)
 216                         list_window_set_cursor(lw, idx);
 217                 return;
 218         }
 219
 220         list_window_center(lw, idx);
 221
 222         if (center_cursor) {
 223                 list_window_set_cursor(lw, idx);
 224                 return;
 225         }
 226
 227         /* make sure the cursor is in the window */
 228         list_window_fetch_cursor(lw);
 229 }
 230
 231 #ifndef NCMPC_MINI
 232 static void
 233 save_pre_completion_cb(GCompletion *gcmp, G_GNUC_UNUSED gchar *line,
 234                        void *data)
 235 {
 236         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 237         GList **list = tmp->list;
 238         struct mpdclient *c = tmp->c;
 239
 240         if( *list == NULL ) {
 241                 /* create completion list */
 242                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_PLAYLIST);
 243                 g_completion_add_items(gcmp, *list);
 244         }
 245 }
 246
 247 static void
 248 save_post_completion_cb(G_GNUC_UNUSED GCompletion *gcmp,
 249                         G_GNUC_UNUSED gchar *line, GList *items,
 250                         G_GNUC_UNUSED void *data)
 251 {
 252         if (g_list_length(items) >= 1)
 253                 screen_display_completion_list(items);
 254 }
 255 #endif
 256
 257 #ifndef NCMPC_MINI
 258 /**
 259  * Wrapper for strncmp().  We are not allowed to pass &strncmp to
 260  * g_completion_set_compare(), because strncmp() takes size_t where
 261  * g_completion_set_compare passes a gsize value.
 262  */
 263 static gint
 264 completion_strncmp(const gchar *s1, const gchar *s2, gsize n)
 265 {
 266         return strncmp(s1, s2, n);
 267 }
 268 #endif
 269
 270 int
 271 playlist_save(struct mpdclient *c, char *name, char *defaultname)
 272 {
 273         struct mpd_connection *connection;
 274         gchar *filename, *filename_utf8;
 275 #ifndef NCMPC_MINI
 276         GCompletion *gcmp;
 277         GList *list = NULL;
 278         completion_callback_data_t data;
 279 #endif
 280
 281 #ifdef NCMPC_MINI
 282         (void)defaultname;
 283 #endif
 284
 285 #ifndef NCMPC_MINI
 286         if (name == NULL) {
 287                 /* initialize completion support */
 288                 gcmp = g_completion_new(NULL);
 289                 g_completion_set_compare(gcmp, completion_strncmp);
 290                 data.list = &list;
 291                 data.dir_list = NULL;
 292                 data.c = c;
 293                 wrln_completion_callback_data = &data;
 294                 wrln_pre_completion_callback = save_pre_completion_cb;
 295                 wrln_post_completion_callback = save_post_completion_cb;
 296
 297
 298                 /* query the user for a filename */
 299                 filename = screen_readln(_("Save playlist as"),
 300                                          defaultname,
 301                                          NULL,
 302                                          gcmp);
 303
 304                 /* destroy completion support */
 305                 wrln_completion_callback_data = NULL;
 306                 wrln_pre_completion_callback = NULL;
 307                 wrln_post_completion_callback = NULL;
 308                 g_completion_free(gcmp);
 309                 list = string_list_free(list);
 310                 if( filename )
 311                         filename=g_strstrip(filename);
 312         } else
 313 #endif
 314                         filename=g_strdup(name);
 315
 316         if (filename == NULL)
 317                 return -1;
 318
 319         /* send save command to mpd */
 320
 321         filename_utf8 = locale_to_utf8(filename);
 322
 323         connection = mpdclient_get_connection(c);
 324         if (!mpd_run_save(connection, filename_utf8)) {
 325                 if (mpd_connection_get_error(connection) == MPD_ERROR_SERVER &&
 326                     mpd_connection_get_server_error(connection) == MPD_SERVER_ERROR_EXIST &&
 327                     mpd_connection_clear_error(connection)) {
 328                         char *buf;
 329                         int key;
 330
 331                         buf = g_strdup_printf(_("Replace %s [%s/%s] ? "),
 332                                               filename, YES, NO);
 333                         key = tolower(screen_getch(buf));
 334                         g_free(buf);
 335
 336                         if (key != YES[0]) {
 337                                 g_free(filename_utf8);
 338                                 g_free(filename);
 339                                 screen_status_printf(_("Aborted"));
 340                                 return -1;
 341                         }
 342
 343                         if (!mpd_run_rm(connection, filename_utf8) ||
 344                             !mpd_run_save(connection, filename_utf8)) {
 345                                 mpdclient_handle_error(c);
 346                                 g_free(filename_utf8);
 347                                 g_free(filename);
 348                                 return -1;
 349                         }
 350                 } else {
 351                         mpdclient_handle_error(c);
 352                         g_free(filename_utf8);
 353                         g_free(filename);
 354                         return -1;
 355                 }
 356         }
 357
 358         c->events |= MPD_IDLE_STORED_PLAYLIST;
 359
 360         g_free(filename_utf8);
 361
 362         /* success */
 363         screen_status_printf(_("Saved %s"), filename);
 364         g_free(filename);
 365         return 0;
 366 }
 367
 368 #ifndef NCMPC_MINI
 369 static void add_dir(GCompletion *gcmp, gchar *dir, GList **dir_list,
 370                     GList **list, struct mpdclient *c)
 371 {
 372         g_completion_remove_items(gcmp, *list);
 373         *list = string_list_remove(*list, dir);
 374         *list = gcmp_list_from_path(c, dir, *list, GCMP_TYPE_RFILE);
 375         g_completion_add_items(gcmp, *list);
 376         *dir_list = g_list_append(*dir_list, g_strdup(dir));
 377 }
 378
 379 static void add_pre_completion_cb(GCompletion *gcmp, gchar *line, void *data)
 380 {
 381         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 382         GList **dir_list = tmp->dir_list;
 383         GList **list = tmp->list;
 384         struct mpdclient *c = tmp->c;
 385
 386         if (*list == NULL) {
 387                 /* create initial list */
 388                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_RFILE);
 389                 g_completion_add_items(gcmp, *list);
 390         } else if (line && line[0] && line[strlen(line)-1]=='/' &&
 391                    string_list_find(*dir_list, line) == NULL) {
 392                 /* add directory content to list */
 393                 add_dir(gcmp, line, dir_list, list, c);
 394         }
 395 }
 396
 397 static void add_post_completion_cb(GCompletion *gcmp, gchar *line,
 398                                    GList *items, void *data)
 399 {
 400         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 401         GList **dir_list = tmp->dir_list;
 402         GList **list = tmp->list;
 403         struct mpdclient *c = tmp->c;
 404
 405         if (g_list_length(items) >= 1)
 406                 screen_display_completion_list(items);
 407
 408         if (line && line[0] && line[strlen(line) - 1] == '/' &&
 409             string_list_find(*dir_list, line) == NULL) {
 410                 /* add directory content to list */
 411                 add_dir(gcmp, line, dir_list, list, c);
 412         }
 413 }
 414 #endif
 415
 416 static int
 417 handle_add_to_playlist(struct mpdclient *c)
 418 {
 419         gchar *path;
 420 #ifndef NCMPC_MINI
 421         GCompletion *gcmp;
 422         GList *list = NULL;
 423         GList *dir_list = NULL;
 424         completion_callback_data_t data;
 425
 426         /* initialize completion support */
 427         gcmp = g_completion_new(NULL);
 428         g_completion_set_compare(gcmp, completion_strncmp);
 429         data.list = &list;
 430         data.dir_list = &dir_list;
 431         data.c = c;
 432         wrln_completion_callback_data = &data;
 433         wrln_pre_completion_callback = add_pre_completion_cb;
 434         wrln_post_completion_callback = add_post_completion_cb;
 435 #endif
 436
 437         /* get path */
 438         path = screen_readln(_("Add"),
 439                              NULL,
 440                              NULL,
 441 #ifdef NCMPC_MINI
 442                              NULL
 443 #else
 444                              gcmp
 445 #endif
 446                              );
 447
 448         /* destroy completion data */
 449 #ifndef NCMPC_MINI
 450         wrln_completion_callback_data = NULL;
 451         wrln_pre_completion_callback = NULL;
 452         wrln_post_completion_callback = NULL;
 453         g_completion_free(gcmp);
 454         string_list_free(list);
 455         string_list_free(dir_list);
 456 #endif
 457
 458         /* add the path to the playlist */
 459         if (path != NULL) {
 460                 char *path_utf8 = locale_to_utf8(path);
 461                 mpdclient_cmd_add_path(c, path_utf8);
 462                 g_free(path_utf8);
 463         }
 464
 465         g_free(path);
 466         return 0;
 467 }
 468
 469 static void
 470 screen_playlist_init(WINDOW *w, int cols, int rows)
 471 {
 472         lw = list_window_init(w, cols, rows);
 473 }
 474
 475 static gboolean
 476 timer_hide_cursor(gpointer data)
 477 {
 478         struct mpdclient *c = data;
 479
 480         assert(options.hide_cursor > 0);
 481         assert(timer_hide_cursor_id != 0);
 482
 483         timer_hide_cursor_id = 0;
 484
 485         /* hide the cursor when mpd is playing and the user is inactive */
 486
 487         if (c->status != NULL &&
 488             mpd_status_get_state(c->status) == MPD_STATE_PLAY) {
 489                 lw->hide_cursor = true;
 490                 playlist_repaint();
 491         } else
 492                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 493                                                      timer_hide_cursor, c);
 494
 495         return FALSE;
 496 }
 497
 498 static void
 499 screen_playlist_open(struct mpdclient *c)
 500 {
 501         playlist = &c->playlist;
 502
 503         assert(timer_hide_cursor_id == 0);
 504         if (options.hide_cursor > 0) {
 505                 lw->hide_cursor = false;
 506                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 507                                                      timer_hide_cursor, c);
 508         }
 509
 510         playlist_restore_selection();
 511 }
 512
 513 static void
 514 screen_playlist_close(void)
 515 {
 516         if (timer_hide_cursor_id != 0) {
 517                 g_source_remove(timer_hide_cursor_id);
 518                 timer_hide_cursor_id = 0;
 519         }
 520 }
 521
 522 static void
 523 screen_playlist_resize(int cols, int rows)
 524 {
 525         list_window_resize(lw, cols, rows);
 526 }
 527
 528
 529 static void
 530 screen_playlist_exit(void)
 531 {
 532         list_window_free(lw);
 533 }
 534
 535 static const char *
 536 screen_playlist_title(char *str, size_t size)
 537 {
 538         if (options.host == NULL)
 539                 return _("Playlist");
 540
 541         g_snprintf(str, size, _("Playlist on %s"), options.host);
 542         return str;
 543 }
 544
 545 static void
 546 screen_playlist_paint(void)
 547 {
 548         list_window_paint(lw, list_callback, NULL);
 549 }
 550
 551 static void
 552 screen_playlist_update(struct mpdclient *c)
 553 {
 554         static int prev_song_id = -1;
 555
 556         if (c->events & MPD_IDLE_PLAYLIST)
 557                 playlist_restore_selection();
 558
 559         current_song_id = c->status != NULL &&
 560                 (mpd_status_get_state(c->status) == MPD_STATE_PLAY ||
 561                  mpd_status_get_state(c->status) == MPD_STATE_PAUSE)
 562                 ? (int)mpd_status_get_song_id(c->status) : -1;
 563
 564         if (current_song_id != prev_song_id) {
 565                 prev_song_id = current_song_id;
 566
 567                 /* center the cursor */
 568                 if (options.auto_center && current_song_id != -1 && ! lw->range_selection)
 569                         center_playing_item(c, false);
 570
 571                 playlist_repaint();
 572         } else if (c->events & MPD_IDLE_PLAYLIST) {
 573                 /* the playlist has changed, we must paint the new
 574                    version */
 575                 playlist_repaint();
 576         }
 577 }
 578
 579 #ifdef HAVE_GETMOUSE
 580 static bool
 581 handle_mouse_event(struct mpdclient *c)
 582 {
 583         int row;
 584         unsigned selected;
 585         unsigned long bstate;
 586
 587         if (screen_get_mouse_event(c, &bstate, &row) ||
 588             list_window_mouse(lw, bstate, row)) {
 589                 playlist_repaint();
 590                 return true;
 591         }
 592
 593         if (bstate & BUTTON1_DOUBLE_CLICKED) {
 594                 /* stop */
 595                 screen_cmd(c, CMD_STOP);
 596                 return true;
 597         }
 598
 599         selected = lw->start + row;
 600
 601         if (bstate & BUTTON1_CLICKED) {
 602                 /* play */
 603                 if (lw->start + row < playlist_length(playlist))
 604                         mpdclient_cmd_play(c, lw->start + row);
 605         } else if (bstate & BUTTON3_CLICKED) {
 606                 /* delete */
 607                 if (selected == lw->selected)
 608                         mpdclient_cmd_delete(c, lw->selected);
 609         }
 610
 611         list_window_set_cursor(lw, selected);
 612         playlist_save_selection();
 613         playlist_repaint();
 614
 615         return true;
 616 }
 617 #endif
 618
 619 static bool
 620 screen_playlist_cmd(struct mpdclient *c, command_t cmd)
 621 {
 622         struct mpd_connection *connection;
 623         static command_t cached_cmd = CMD_NONE;
 624         command_t prev_cmd = cached_cmd;
 625         struct list_window_range range;
 626
 627         cached_cmd = cmd;
 628
 629         lw->hide_cursor = false;
 630
 631         if (options.hide_cursor > 0) {
 632                 if (timer_hide_cursor_id != 0)
 633                         g_source_remove(timer_hide_cursor_id);
 634                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 635                                                      timer_hide_cursor, c);
 636         }
 637
 638         if (list_window_cmd(lw, cmd)) {
 639                 playlist_save_selection();
 640                 playlist_repaint();
 641                 return true;
 642         }
 643
 644         switch(cmd) {
 645         case CMD_SCREEN_UPDATE:
 646                 center_playing_item(c, prev_cmd == CMD_SCREEN_UPDATE);
 647                 playlist_repaint();
 648                 return false;
 649         case CMD_SELECT_PLAYING:
 650                 list_window_set_cursor(lw, playlist_get_index(&c->playlist,
 651                                                               c->song));
 652                 playlist_save_selection();
 653                 playlist_repaint();
 654                 return true;
 655
 656         case CMD_LIST_FIND:
 657         case CMD_LIST_RFIND:
 658         case CMD_LIST_FIND_NEXT:
 659         case CMD_LIST_RFIND_NEXT:
 660                 screen_find(lw, cmd, list_callback, NULL);
 661                 playlist_save_selection();
 662                 playlist_repaint();
 663                 return true;
 664         case CMD_LIST_JUMP:
 665                 screen_jump(lw, list_callback, NULL, NULL);
 666                 playlist_save_selection();
 667                 playlist_repaint();
 668                 return true;
 669
 670 #ifdef HAVE_GETMOUSE
 671         case CMD_MOUSE_EVENT:
 672                 return handle_mouse_event(c);
 673 #endif
 674
 675 #ifdef ENABLE_SONG_SCREEN
 676         case CMD_SCREEN_SONG:
 677                 if (playlist_selected_song()) {
 678                         screen_song_switch(c, playlist_selected_song());
 679                         return true;
 680                 }
 681
 682                 break;
 683 #endif
 684
 685 #ifdef ENABLE_LYRICS_SCREEN
 686         case CMD_SCREEN_LYRICS:
 687                 if (lw->selected < playlist_length(&c->playlist)) {
 688                         struct mpd_song *selected = playlist_get(&c->playlist, lw->selected);
 689                         bool follow = false;
 690
 691                         if (c->song && selected &&
 692                             !strcmp(mpd_song_get_uri(selected),
 693                                     mpd_song_get_uri(c->song)))
 694                                 follow = true;
 695
 696                         screen_lyrics_switch(c, selected, follow);
 697                         return true;
 698                 }
 699
 700                 break;
 701 #endif
 702         case CMD_SCREEN_SWAP:
 703                 screen_swap(c, playlist_get(&c->playlist, lw->selected));
 704                 return true;
 705
 706         default:
 707                 break;
 708         }
 709
 710         if (!mpdclient_is_connected(c))
 711                 return false;
 712
 713         switch(cmd) {
 714         case CMD_PLAY:
 715                 mpdclient_cmd_play(c, lw->selected);
 716                 return true;
 717
 718         case CMD_DELETE:
 719                 list_window_get_range(lw, &range);
 720                 mpdclient_cmd_delete_range(c, range.start, range.end);
 721
 722                 list_window_set_cursor(lw, range.start);
 723                 return true;
 724
 725         case CMD_SAVE_PLAYLIST:
 726                 playlist_save(c, NULL, NULL);
 727                 return true;
 728
 729         case CMD_ADD:
 730                 handle_add_to_playlist(c);
 731                 return true;
 732
 733         case CMD_SHUFFLE:
 734                 list_window_get_range(lw, &range);
 735                 if (range.end < range.start + 1)
 736                         /* No range selection, shuffle all list. */
 737                         break;
 738
 739                 connection = mpdclient_get_connection(c);
 740                 if (mpd_run_shuffle_range(connection, range.start, range.end))
 741                         screen_status_message(_("Shuffled playlist"));
 742                 else
 743                         mpdclient_handle_error(c);
 744                 return true;
 745
 746         case CMD_LIST_MOVE_UP:
 747                 list_window_get_range(lw, &range);
 748                 if (range.start == 0 || range.end <= range.start)
 749                         return false;
 750
 751                 for (unsigned i = range.start; i < range.end; ++i)
 752                         mpdclient_cmd_move(c, i, i - 1);
 753
 754                 lw->selected--;
 755                 lw->range_base--;
 756
 757                 playlist_save_selection();
 758                 return true;
 759
 760         case CMD_LIST_MOVE_DOWN:
 761                 list_window_get_range(lw, &range);
 762                 if (range.end >= playlist_length(&c->playlist))
 763                         return false;
 764
 765                 for (int i = range.end - 1; i >= (int)range.start; --i)
 766                         mpdclient_cmd_move(c, i, i + 1);
 767
 768                 lw->selected++;
 769                 lw->range_base++;
 770
 771                 playlist_save_selection();
 772                 return true;
 773
 774         case CMD_LOCATE:
 775                 if (playlist_selected_song()) {
 776                         screen_file_goto_song(c, playlist_selected_song());
 777                         return true;
 778                 }
 779
 780                 break;
 781
 782         default:
 783                 break;
 784         }
 785
 786         return false;
 787 }
 788
 789 const struct screen_functions screen_playlist = {
 790         .init = screen_playlist_init,
 791         .exit = screen_playlist_exit,
 792         .open = screen_playlist_open,
 793         .close = screen_playlist_close,
 794         .resize = screen_playlist_resize,
 795         .paint = screen_playlist_paint,
 796         .update = screen_playlist_update,
 797         .cmd = screen_playlist_cmd,
 798         .get_title = screen_playlist_title,
 799 };