src/screen_queue.c

   1 /* ncmpc (Ncurses MPD Client)
   2  * (c) 2004-2010 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_queue.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 "song_paint.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 #endif
  61
  62 static struct mpdclient_playlist *playlist;
  63 static int current_song_id = -1;
  64 static int selected_song_id = -1;
  65 static struct list_window *lw;
  66 static guint timer_hide_cursor_id;
  67
  68 static void
  69 screen_queue_paint(void);
  70
  71 static void
  72 screen_queue_repaint(void)
  73 {
  74         screen_queue_paint();
  75         wrefresh(lw->w);
  76 }
  77
  78 static const struct mpd_song *
  79 screen_queue_selected_song(void)
  80 {
  81         return !lw->range_selection &&
  82                 lw->selected < playlist_length(playlist)
  83                 ? playlist_get(playlist, lw->selected)
  84                 : NULL;
  85 }
  86
  87 static void
  88 screen_queue_save_selection(void)
  89 {
  90         selected_song_id = screen_queue_selected_song() != NULL
  91                 ? (int)mpd_song_get_id(screen_queue_selected_song())
  92                 : -1;
  93 }
  94
  95 static void
  96 screen_queue_restore_selection(void)
  97 {
  98         const struct mpd_song *song;
  99         int pos;
 100
 101         list_window_set_length(lw, playlist_length(playlist));
 102
 103         if (selected_song_id < 0)
 104                 /* there was no selection */
 105                 return;
 106
 107         song = screen_queue_selected_song();
 108         if (song != NULL &&
 109             mpd_song_get_id(song) == (unsigned)selected_song_id)
 110                 /* selection is still valid */
 111                 return;
 112
 113         pos = playlist_get_index_from_id(playlist, selected_song_id);
 114         if (pos >= 0)
 115                 list_window_set_cursor(lw, pos);
 116
 117         screen_queue_save_selection();
 118 }
 119
 120 static const char *
 121 screen_queue_lw_callback(unsigned idx, G_GNUC_UNUSED void *data)
 122 {
 123         static char songname[MAX_SONG_LENGTH];
 124         struct mpd_song *song;
 125
 126         assert(playlist != NULL);
 127         assert(idx < playlist_length(playlist));
 128
 129         song = playlist_get(playlist, idx);
 130
 131         strfsong(songname, MAX_SONG_LENGTH, options.list_format, song);
 132
 133         return songname;
 134 }
 135
 136 static void
 137 center_playing_item(const struct mpd_status *status, bool center_cursor)
 138 {
 139         int idx;
 140
 141         if (status == NULL ||
 142             (mpd_status_get_state(status) != MPD_STATE_PLAY &&
 143              mpd_status_get_state(status) != MPD_STATE_PAUSE))
 144                 return;
 145
 146         /* try to center the song that are playing */
 147         idx = mpd_status_get_song_pos(status);
 148         if (idx < 0)
 149                 return;
 150
 151         list_window_center(lw, idx);
 152
 153         if (center_cursor) {
 154                 list_window_set_cursor(lw, idx);
 155                 return;
 156         }
 157
 158         /* make sure the cursor is in the window */
 159         list_window_fetch_cursor(lw);
 160 }
 161
 162 G_GNUC_PURE
 163 static int
 164 get_current_song_id(const struct mpd_status *status)
 165 {
 166         return status != NULL &&
 167                 (mpd_status_get_state(status) == MPD_STATE_PLAY ||
 168                  mpd_status_get_state(status) == MPD_STATE_PAUSE)
 169                 ? (int)mpd_status_get_song_id(status)
 170                 : -1;
 171 }
 172
 173 static bool
 174 screen_queue_song_change(const struct mpd_status *status)
 175 {
 176         if (get_current_song_id(status) == current_song_id)
 177                 return false;
 178
 179         current_song_id = get_current_song_id(status);
 180
 181         /* center the cursor */
 182         if (options.auto_center && !lw->range_selection)
 183                 center_playing_item(status, false);
 184
 185         return true;
 186 }
 187
 188 #ifndef NCMPC_MINI
 189 static void
 190 save_pre_completion_cb(GCompletion *gcmp, G_GNUC_UNUSED gchar *line,
 191                        void *data)
 192 {
 193         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 194         GList **list = tmp->list;
 195         struct mpdclient *c = tmp->c;
 196
 197         if( *list == NULL ) {
 198                 /* create completion list */
 199                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_PLAYLIST);
 200                 g_completion_add_items(gcmp, *list);
 201         }
 202 }
 203
 204 static void
 205 save_post_completion_cb(G_GNUC_UNUSED GCompletion *gcmp,
 206                         G_GNUC_UNUSED gchar *line, GList *items,
 207                         G_GNUC_UNUSED void *data)
 208 {
 209         if (g_list_length(items) >= 1)
 210                 screen_display_completion_list(items);
 211 }
 212 #endif
 213
 214 #ifndef NCMPC_MINI
 215 /**
 216  * Wrapper for strncmp().  We are not allowed to pass &strncmp to
 217  * g_completion_set_compare(), because strncmp() takes size_t where
 218  * g_completion_set_compare passes a gsize value.
 219  */
 220 static gint
 221 completion_strncmp(const gchar *s1, const gchar *s2, gsize n)
 222 {
 223         return strncmp(s1, s2, n);
 224 }
 225 #endif
 226
 227 int
 228 playlist_save(struct mpdclient *c, char *name, char *defaultname)
 229 {
 230         struct mpd_connection *connection;
 231         gchar *filename, *filename_utf8;
 232 #ifndef NCMPC_MINI
 233         GCompletion *gcmp;
 234         GList *list = NULL;
 235         completion_callback_data_t data;
 236 #endif
 237
 238 #ifdef NCMPC_MINI
 239         (void)defaultname;
 240 #endif
 241
 242 #ifndef NCMPC_MINI
 243         if (name == NULL) {
 244                 /* initialize completion support */
 245                 gcmp = g_completion_new(NULL);
 246                 g_completion_set_compare(gcmp, completion_strncmp);
 247                 data.list = &list;
 248                 data.dir_list = NULL;
 249                 data.c = c;
 250                 wrln_completion_callback_data = &data;
 251                 wrln_pre_completion_callback = save_pre_completion_cb;
 252                 wrln_post_completion_callback = save_post_completion_cb;
 253
 254
 255                 /* query the user for a filename */
 256                 filename = screen_readln(_("Save playlist as"),
 257                                          defaultname,
 258                                          NULL,
 259                                          gcmp);
 260
 261                 /* destroy completion support */
 262                 wrln_completion_callback_data = NULL;
 263                 wrln_pre_completion_callback = NULL;
 264                 wrln_post_completion_callback = NULL;
 265                 g_completion_free(gcmp);
 266                 list = string_list_free(list);
 267                 if( filename )
 268                         filename=g_strstrip(filename);
 269         } else
 270 #endif
 271                         filename=g_strdup(name);
 272
 273         if (filename == NULL)
 274                 return -1;
 275
 276         /* send save command to mpd */
 277
 278         connection = mpdclient_get_connection(c);
 279         if (connection == NULL) {
 280                 g_free(filename);
 281                 return -1;
 282         }
 283
 284         filename_utf8 = locale_to_utf8(filename);
 285         if (!mpd_run_save(connection, filename_utf8)) {
 286                 if (mpd_connection_get_error(connection) == MPD_ERROR_SERVER &&
 287                     mpd_connection_get_server_error(connection) == MPD_SERVER_ERROR_EXIST &&
 288                     mpd_connection_clear_error(connection)) {
 289                         char *buf;
 290                         int key;
 291
 292                         buf = g_strdup_printf(_("Replace %s [%s/%s] ? "),
 293                                               filename, YES, NO);
 294                         key = tolower(screen_getch(buf));
 295                         g_free(buf);
 296
 297                         if (key != YES[0]) {
 298                                 g_free(filename_utf8);
 299                                 g_free(filename);
 300                                 screen_status_printf(_("Aborted"));
 301                                 return -1;
 302                         }
 303
 304                         if (!mpd_run_rm(connection, filename_utf8) ||
 305                             !mpd_run_save(connection, filename_utf8)) {
 306                                 mpdclient_handle_error(c);
 307                                 g_free(filename_utf8);
 308                                 g_free(filename);
 309                                 return -1;
 310                         }
 311                 } else {
 312                         mpdclient_handle_error(c);
 313                         g_free(filename_utf8);
 314                         g_free(filename);
 315                         return -1;
 316                 }
 317         }
 318
 319         c->events |= MPD_IDLE_STORED_PLAYLIST;
 320
 321         g_free(filename_utf8);
 322
 323         /* success */
 324         screen_status_printf(_("Saved %s"), filename);
 325         g_free(filename);
 326         return 0;
 327 }
 328
 329 #ifndef NCMPC_MINI
 330 static void add_dir(GCompletion *gcmp, gchar *dir, GList **dir_list,
 331                     GList **list, struct mpdclient *c)
 332 {
 333         g_completion_remove_items(gcmp, *list);
 334         *list = string_list_remove(*list, dir);
 335         *list = gcmp_list_from_path(c, dir, *list, GCMP_TYPE_RFILE);
 336         g_completion_add_items(gcmp, *list);
 337         *dir_list = g_list_append(*dir_list, g_strdup(dir));
 338 }
 339
 340 static void add_pre_completion_cb(GCompletion *gcmp, gchar *line, void *data)
 341 {
 342         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 343         GList **dir_list = tmp->dir_list;
 344         GList **list = tmp->list;
 345         struct mpdclient *c = tmp->c;
 346
 347         if (*list == NULL) {
 348                 /* create initial list */
 349                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_RFILE);
 350                 g_completion_add_items(gcmp, *list);
 351         } else if (line && line[0] && line[strlen(line)-1]=='/' &&
 352                    string_list_find(*dir_list, line) == NULL) {
 353                 /* add directory content to list */
 354                 add_dir(gcmp, line, dir_list, list, c);
 355         }
 356 }
 357
 358 static void add_post_completion_cb(GCompletion *gcmp, gchar *line,
 359                                    GList *items, void *data)
 360 {
 361         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 362         GList **dir_list = tmp->dir_list;
 363         GList **list = tmp->list;
 364         struct mpdclient *c = tmp->c;
 365
 366         if (g_list_length(items) >= 1)
 367                 screen_display_completion_list(items);
 368
 369         if (line && line[0] && line[strlen(line) - 1] == '/' &&
 370             string_list_find(*dir_list, line) == NULL) {
 371                 /* add directory content to list */
 372                 add_dir(gcmp, line, dir_list, list, c);
 373         }
 374 }
 375 #endif
 376
 377 static int
 378 handle_add_to_playlist(struct mpdclient *c)
 379 {
 380         gchar *path;
 381         GCompletion *gcmp;
 382 #ifndef NCMPC_MINI
 383         GList *list = NULL;
 384         GList *dir_list = NULL;
 385         completion_callback_data_t data;
 386
 387         /* initialize completion support */
 388         gcmp = g_completion_new(NULL);
 389         g_completion_set_compare(gcmp, completion_strncmp);
 390         data.list = &list;
 391         data.dir_list = &dir_list;
 392         data.c = c;
 393         wrln_completion_callback_data = &data;
 394         wrln_pre_completion_callback = add_pre_completion_cb;
 395         wrln_post_completion_callback = add_post_completion_cb;
 396 #else
 397         gcmp = NULL;
 398 #endif
 399
 400         /* get path */
 401         path = screen_readln(_("Add"),
 402                              NULL,
 403                              NULL,
 404                              gcmp);
 405
 406         /* destroy completion data */
 407 #ifndef NCMPC_MINI
 408         wrln_completion_callback_data = NULL;
 409         wrln_pre_completion_callback = NULL;
 410         wrln_post_completion_callback = NULL;
 411         g_completion_free(gcmp);
 412         string_list_free(list);
 413         string_list_free(dir_list);
 414 #endif
 415
 416         /* add the path to the playlist */
 417         if (path != NULL) {
 418                 char *path_utf8 = locale_to_utf8(path);
 419                 mpdclient_cmd_add_path(c, path_utf8);
 420                 g_free(path_utf8);
 421         }
 422
 423         g_free(path);
 424         return 0;
 425 }
 426
 427 static void
 428 screen_queue_init(WINDOW *w, int cols, int rows)
 429 {
 430         lw = list_window_init(w, cols, rows);
 431
 432 #ifndef NCMPC_MINI
 433         if (options.scroll)
 434                 hscroll_init(&hscroll, w, options.scroll_sep);
 435 #endif
 436 }
 437
 438 static gboolean
 439 timer_hide_cursor(gpointer data)
 440 {
 441         struct mpdclient *c = data;
 442
 443         assert(options.hide_cursor > 0);
 444         assert(timer_hide_cursor_id != 0);
 445
 446         timer_hide_cursor_id = 0;
 447
 448         /* hide the cursor when mpd is playing and the user is inactive */
 449
 450         if (c->status != NULL &&
 451             mpd_status_get_state(c->status) == MPD_STATE_PLAY) {
 452                 lw->hide_cursor = true;
 453                 screen_queue_repaint();
 454         } else
 455                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 456                                                      timer_hide_cursor, c);
 457
 458         return FALSE;
 459 }
 460
 461 static void
 462 screen_queue_open(struct mpdclient *c)
 463 {
 464         playlist = &c->playlist;
 465
 466         assert(timer_hide_cursor_id == 0);
 467         if (options.hide_cursor > 0) {
 468                 lw->hide_cursor = false;
 469                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 470                                                      timer_hide_cursor, c);
 471         }
 472
 473         screen_queue_restore_selection();
 474         screen_queue_song_change(c->status);
 475 }
 476
 477 static void
 478 screen_queue_close(void)
 479 {
 480         if (timer_hide_cursor_id != 0) {
 481                 g_source_remove(timer_hide_cursor_id);
 482                 timer_hide_cursor_id = 0;
 483         }
 484
 485 #ifndef NCMPC_MINI
 486         if (options.scroll)
 487                 hscroll_clear(&hscroll);
 488 #endif
 489 }
 490
 491 static void
 492 screen_queue_resize(int cols, int rows)
 493 {
 494         list_window_resize(lw, cols, rows);
 495 }
 496
 497
 498 static void
 499 screen_queue_exit(void)
 500 {
 501         list_window_free(lw);
 502 }
 503
 504 static const char *
 505 screen_queue_title(char *str, size_t size)
 506 {
 507         if (options.host == NULL)
 508                 return _("Playlist");
 509
 510         g_snprintf(str, size, _("Playlist on %s"), options.host);
 511         return str;
 512 }
 513
 514 static void
 515 screen_queue_paint_callback(WINDOW *w, unsigned i,
 516                             unsigned y, unsigned width,
 517                             bool selected, G_GNUC_UNUSED void *data)
 518 {
 519         const struct mpd_song *song;
 520         struct hscroll *row_hscroll;
 521
 522         assert(playlist != NULL);
 523         assert(i < playlist_length(playlist));
 524
 525         song = playlist_get(playlist, i);
 526
 527 #ifdef NCMPC_MINI
 528         row_hscroll = NULL;
 529 #else
 530         row_hscroll = selected && options.scroll && lw->selected == i
 531                 ? &hscroll : NULL;
 532 #endif
 533
 534         paint_song_row(w, y, width, selected,
 535                        (int)mpd_song_get_id(song) == current_song_id,
 536                        song, row_hscroll);
 537 }
 538
 539 static void
 540 screen_queue_paint(void)
 541 {
 542 #ifndef NCMPC_MINI
 543         if (options.scroll)
 544                 hscroll_clear(&hscroll);
 545 #endif
 546
 547         list_window_paint2(lw, screen_queue_paint_callback, NULL);
 548 }
 549
 550 static void
 551 screen_queue_update(struct mpdclient *c)
 552 {
 553         if (c->events & MPD_IDLE_QUEUE)
 554                 screen_queue_restore_selection();
 555         else
 556                 /* the queue size may have changed, even if we havn't
 557                    revceived the QUEUE idle event yet */
 558                 list_window_set_length(lw, playlist_length(playlist));
 559
 560         if (((c->events & MPD_IDLE_PLAYER) != 0 &&
 561              screen_queue_song_change(c->status)) ||
 562             c->events & MPD_IDLE_QUEUE)
 563                 /* the queue or the current song has changed, we must
 564                    paint the new version */
 565                 screen_queue_repaint();
 566 }
 567
 568 #ifdef HAVE_GETMOUSE
 569 static bool
 570 handle_mouse_event(struct mpdclient *c)
 571 {
 572         int row;
 573         unsigned long bstate;
 574         unsigned old_selected;
 575
 576         if (screen_get_mouse_event(c, &bstate, &row) ||
 577             list_window_mouse(lw, bstate, row)) {
 578                 screen_queue_repaint();
 579                 return true;
 580         }
 581
 582         if (bstate & BUTTON1_DOUBLE_CLICKED) {
 583                 /* stop */
 584                 screen_cmd(c, CMD_STOP);
 585                 return true;
 586         }
 587
 588         old_selected = lw->selected;
 589         list_window_set_cursor(lw, lw->start + row);
 590
 591         if (bstate & BUTTON1_CLICKED) {
 592                 /* play */
 593                 const struct mpd_song *song = screen_queue_selected_song();
 594                 if (song != NULL) {
 595                         struct mpd_connection *connection =
 596                                 mpdclient_get_connection(c);
 597
 598                         if (connection != NULL &&
 599                             !mpd_run_play_id(connection,
 600                                              mpd_song_get_id(song)))
 601                                 mpdclient_handle_error(c);
 602                 }
 603         } else if (bstate & BUTTON3_CLICKED) {
 604                 /* delete */
 605                 if (lw->selected == old_selected)
 606                         mpdclient_cmd_delete(c, lw->selected);
 607
 608                 list_window_set_length(lw, playlist_length(playlist));
 609         }
 610
 611         screen_queue_save_selection();
 612         screen_queue_repaint();
 613
 614         return true;
 615 }
 616 #endif
 617
 618 static bool
 619 screen_queue_cmd(struct mpdclient *c, command_t cmd)
 620 {
 621         struct mpd_connection *connection;
 622         static command_t cached_cmd = CMD_NONE;
 623         command_t prev_cmd = cached_cmd;
 624         struct list_window_range range;
 625         const struct mpd_song *song;
 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                 screen_queue_save_selection();
 640                 screen_queue_repaint();
 641                 return true;
 642         }
 643
 644         switch(cmd) {
 645         case CMD_SCREEN_UPDATE:
 646                 center_playing_item(c->status, prev_cmd == CMD_SCREEN_UPDATE);
 647                 screen_queue_repaint();
 648                 return false;
 649         case CMD_SELECT_PLAYING:
 650                 list_window_set_cursor(lw, playlist_get_index(&c->playlist,
 651                                                               c->song));
 652                 screen_queue_save_selection();
 653                 screen_queue_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, screen_queue_lw_callback, NULL);
 661                 screen_queue_save_selection();
 662                 screen_queue_repaint();
 663                 return true;
 664         case CMD_LIST_JUMP:
 665                 screen_jump(lw, screen_queue_lw_callback, NULL, NULL);
 666                 screen_queue_save_selection();
 667                 screen_queue_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 (screen_queue_selected_song() != NULL) {
 678                         screen_song_switch(c, screen_queue_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                 song = screen_queue_selected_song();
 716                 if (song == NULL)
 717                         return false;
 718
 719                 connection = mpdclient_get_connection(c);
 720                 if (connection != NULL &&
 721                     !mpd_run_play_id(connection, mpd_song_get_id(song)))
 722                         mpdclient_handle_error(c);
 723
 724                 return true;
 725
 726         case CMD_DELETE:
 727                 list_window_get_range(lw, &range);
 728                 mpdclient_cmd_delete_range(c, range.start, range.end);
 729
 730                 list_window_set_cursor(lw, range.start);
 731                 return true;
 732
 733         case CMD_SAVE_PLAYLIST:
 734                 playlist_save(c, NULL, NULL);
 735                 return true;
 736
 737         case CMD_ADD:
 738                 handle_add_to_playlist(c);
 739                 return true;
 740
 741         case CMD_SHUFFLE:
 742                 list_window_get_range(lw, &range);
 743                 if (range.end <= range.start + 1)
 744                         /* No range selection, shuffle all list. */
 745                         break;
 746
 747                 connection = mpdclient_get_connection(c);
 748                 if (connection == NULL)
 749                         return true;
 750
 751                 if (mpd_run_shuffle_range(connection, range.start, range.end))
 752                         screen_status_message(_("Shuffled playlist"));
 753                 else
 754                         mpdclient_handle_error(c);
 755                 return true;
 756
 757         case CMD_LIST_MOVE_UP:
 758                 list_window_get_range(lw, &range);
 759                 if (range.start == 0 || range.end <= range.start)
 760                         return false;
 761
 762                 if (!mpdclient_cmd_move(c, range.end - 1, range.start - 1))
 763                         return true;
 764
 765                 lw->selected--;
 766                 lw->range_base--;
 767
 768                 screen_queue_save_selection();
 769                 return true;
 770
 771         case CMD_LIST_MOVE_DOWN:
 772                 list_window_get_range(lw, &range);
 773                 if (range.end >= playlist_length(&c->playlist))
 774                         return false;
 775
 776                 if (!mpdclient_cmd_move(c, range.start, range.end))
 777                         return true;
 778
 779                 lw->selected++;
 780                 lw->range_base++;
 781
 782                 screen_queue_save_selection();
 783                 return true;
 784
 785         case CMD_LOCATE:
 786                 if (screen_queue_selected_song() != NULL) {
 787                         screen_file_goto_song(c, screen_queue_selected_song());
 788                         return true;
 789                 }
 790
 791                 break;
 792
 793         default:
 794                 break;
 795         }
 796
 797         return false;
 798 }
 799
 800 const struct screen_functions screen_queue = {
 801         .init = screen_queue_init,
 802         .exit = screen_queue_exit,
 803         .open = screen_queue_open,
 804         .close = screen_queue_close,
 805         .resize = screen_queue_resize,
 806         .paint = screen_queue_paint,
 807         .update = screen_queue_update,
 808         .cmd = screen_queue_cmd,
 809         .get_title = screen_queue_title,
 810 };