src/screen_queue.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_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(struct mpdclient *c, bool center_cursor)
 138 {
 139         const struct mpd_song *song;
 140         unsigned length = c->playlist.list->len;
 141         int idx;
 142
 143         song = mpdclient_get_current_song(c);
 144         if (song == NULL)
 145                 return;
 146
 147         /* try to center the song that are playing */
 148         idx = playlist_get_index(&c->playlist, c->song);
 149         if (idx < 0)
 150                 return;
 151
 152         if (length < lw->rows)
 153         {
 154                 if (center_cursor)
 155                         list_window_set_cursor(lw, idx);
 156                 return;
 157         }
 158
 159         list_window_center(lw, idx);
 160
 161         if (center_cursor) {
 162                 list_window_set_cursor(lw, idx);
 163                 return;
 164         }
 165
 166         /* make sure the cursor is in the window */
 167         list_window_fetch_cursor(lw);
 168 }
 169
 170 #ifndef NCMPC_MINI
 171 static void
 172 save_pre_completion_cb(GCompletion *gcmp, G_GNUC_UNUSED gchar *line,
 173                        void *data)
 174 {
 175         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 176         GList **list = tmp->list;
 177         struct mpdclient *c = tmp->c;
 178
 179         if( *list == NULL ) {
 180                 /* create completion list */
 181                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_PLAYLIST);
 182                 g_completion_add_items(gcmp, *list);
 183         }
 184 }
 185
 186 static void
 187 save_post_completion_cb(G_GNUC_UNUSED GCompletion *gcmp,
 188                         G_GNUC_UNUSED gchar *line, GList *items,
 189                         G_GNUC_UNUSED void *data)
 190 {
 191         if (g_list_length(items) >= 1)
 192                 screen_display_completion_list(items);
 193 }
 194 #endif
 195
 196 #ifndef NCMPC_MINI
 197 /**
 198  * Wrapper for strncmp().  We are not allowed to pass &strncmp to
 199  * g_completion_set_compare(), because strncmp() takes size_t where
 200  * g_completion_set_compare passes a gsize value.
 201  */
 202 static gint
 203 completion_strncmp(const gchar *s1, const gchar *s2, gsize n)
 204 {
 205         return strncmp(s1, s2, n);
 206 }
 207 #endif
 208
 209 int
 210 playlist_save(struct mpdclient *c, char *name, char *defaultname)
 211 {
 212         struct mpd_connection *connection;
 213         gchar *filename, *filename_utf8;
 214 #ifndef NCMPC_MINI
 215         GCompletion *gcmp;
 216         GList *list = NULL;
 217         completion_callback_data_t data;
 218 #endif
 219
 220 #ifdef NCMPC_MINI
 221         (void)defaultname;
 222 #endif
 223
 224 #ifndef NCMPC_MINI
 225         if (name == NULL) {
 226                 /* initialize completion support */
 227                 gcmp = g_completion_new(NULL);
 228                 g_completion_set_compare(gcmp, completion_strncmp);
 229                 data.list = &list;
 230                 data.dir_list = NULL;
 231                 data.c = c;
 232                 wrln_completion_callback_data = &data;
 233                 wrln_pre_completion_callback = save_pre_completion_cb;
 234                 wrln_post_completion_callback = save_post_completion_cb;
 235
 236
 237                 /* query the user for a filename */
 238                 filename = screen_readln(_("Save playlist as"),
 239                                          defaultname,
 240                                          NULL,
 241                                          gcmp);
 242
 243                 /* destroy completion support */
 244                 wrln_completion_callback_data = NULL;
 245                 wrln_pre_completion_callback = NULL;
 246                 wrln_post_completion_callback = NULL;
 247                 g_completion_free(gcmp);
 248                 list = string_list_free(list);
 249                 if( filename )
 250                         filename=g_strstrip(filename);
 251         } else
 252 #endif
 253                         filename=g_strdup(name);
 254
 255         if (filename == NULL)
 256                 return -1;
 257
 258         /* send save command to mpd */
 259
 260         connection = mpdclient_get_connection(c);
 261         if (connection == NULL)
 262                 return -1;
 263
 264         filename_utf8 = locale_to_utf8(filename);
 265         if (!mpd_run_save(connection, filename_utf8)) {
 266                 if (mpd_connection_get_error(connection) == MPD_ERROR_SERVER &&
 267                     mpd_connection_get_server_error(connection) == MPD_SERVER_ERROR_EXIST &&
 268                     mpd_connection_clear_error(connection)) {
 269                         char *buf;
 270                         int key;
 271
 272                         buf = g_strdup_printf(_("Replace %s [%s/%s] ? "),
 273                                               filename, YES, NO);
 274                         key = tolower(screen_getch(buf));
 275                         g_free(buf);
 276
 277                         if (key != YES[0]) {
 278                                 g_free(filename_utf8);
 279                                 g_free(filename);
 280                                 screen_status_printf(_("Aborted"));
 281                                 return -1;
 282                         }
 283
 284                         if (!mpd_run_rm(connection, filename_utf8) ||
 285                             !mpd_run_save(connection, filename_utf8)) {
 286                                 mpdclient_handle_error(c);
 287                                 g_free(filename_utf8);
 288                                 g_free(filename);
 289                                 return -1;
 290                         }
 291                 } else {
 292                         mpdclient_handle_error(c);
 293                         g_free(filename_utf8);
 294                         g_free(filename);
 295                         return -1;
 296                 }
 297         }
 298
 299         c->events |= MPD_IDLE_STORED_PLAYLIST;
 300
 301         g_free(filename_utf8);
 302
 303         /* success */
 304         screen_status_printf(_("Saved %s"), filename);
 305         g_free(filename);
 306         return 0;
 307 }
 308
 309 #ifndef NCMPC_MINI
 310 static void add_dir(GCompletion *gcmp, gchar *dir, GList **dir_list,
 311                     GList **list, struct mpdclient *c)
 312 {
 313         g_completion_remove_items(gcmp, *list);
 314         *list = string_list_remove(*list, dir);
 315         *list = gcmp_list_from_path(c, dir, *list, GCMP_TYPE_RFILE);
 316         g_completion_add_items(gcmp, *list);
 317         *dir_list = g_list_append(*dir_list, g_strdup(dir));
 318 }
 319
 320 static void add_pre_completion_cb(GCompletion *gcmp, gchar *line, void *data)
 321 {
 322         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 323         GList **dir_list = tmp->dir_list;
 324         GList **list = tmp->list;
 325         struct mpdclient *c = tmp->c;
 326
 327         if (*list == NULL) {
 328                 /* create initial list */
 329                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_RFILE);
 330                 g_completion_add_items(gcmp, *list);
 331         } else if (line && line[0] && line[strlen(line)-1]=='/' &&
 332                    string_list_find(*dir_list, line) == NULL) {
 333                 /* add directory content to list */
 334                 add_dir(gcmp, line, dir_list, list, c);
 335         }
 336 }
 337
 338 static void add_post_completion_cb(GCompletion *gcmp, gchar *line,
 339                                    GList *items, void *data)
 340 {
 341         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 342         GList **dir_list = tmp->dir_list;
 343         GList **list = tmp->list;
 344         struct mpdclient *c = tmp->c;
 345
 346         if (g_list_length(items) >= 1)
 347                 screen_display_completion_list(items);
 348
 349         if (line && line[0] && line[strlen(line) - 1] == '/' &&
 350             string_list_find(*dir_list, line) == NULL) {
 351                 /* add directory content to list */
 352                 add_dir(gcmp, line, dir_list, list, c);
 353         }
 354 }
 355 #endif
 356
 357 static int
 358 handle_add_to_playlist(struct mpdclient *c)
 359 {
 360         gchar *path;
 361 #ifndef NCMPC_MINI
 362         GCompletion *gcmp;
 363         GList *list = NULL;
 364         GList *dir_list = NULL;
 365         completion_callback_data_t data;
 366
 367         /* initialize completion support */
 368         gcmp = g_completion_new(NULL);
 369         g_completion_set_compare(gcmp, completion_strncmp);
 370         data.list = &list;
 371         data.dir_list = &dir_list;
 372         data.c = c;
 373         wrln_completion_callback_data = &data;
 374         wrln_pre_completion_callback = add_pre_completion_cb;
 375         wrln_post_completion_callback = add_post_completion_cb;
 376 #endif
 377
 378         /* get path */
 379         path = screen_readln(_("Add"),
 380                              NULL,
 381                              NULL,
 382 #ifdef NCMPC_MINI
 383                              NULL
 384 #else
 385                              gcmp
 386 #endif
 387                              );
 388
 389         /* destroy completion data */
 390 #ifndef NCMPC_MINI
 391         wrln_completion_callback_data = NULL;
 392         wrln_pre_completion_callback = NULL;
 393         wrln_post_completion_callback = NULL;
 394         g_completion_free(gcmp);
 395         string_list_free(list);
 396         string_list_free(dir_list);
 397 #endif
 398
 399         /* add the path to the playlist */
 400         if (path != NULL) {
 401                 char *path_utf8 = locale_to_utf8(path);
 402                 mpdclient_cmd_add_path(c, path_utf8);
 403                 g_free(path_utf8);
 404         }
 405
 406         g_free(path);
 407         return 0;
 408 }
 409
 410 static void
 411 screen_queue_init(WINDOW *w, int cols, int rows)
 412 {
 413         lw = list_window_init(w, cols, rows);
 414
 415 #ifndef NCMPC_MINI
 416         if (options.scroll)
 417                 hscroll_init(&hscroll, w, options.scroll_sep);
 418 #endif
 419 }
 420
 421 static gboolean
 422 timer_hide_cursor(gpointer data)
 423 {
 424         struct mpdclient *c = data;
 425
 426         assert(options.hide_cursor > 0);
 427         assert(timer_hide_cursor_id != 0);
 428
 429         timer_hide_cursor_id = 0;
 430
 431         /* hide the cursor when mpd is playing and the user is inactive */
 432
 433         if (c->status != NULL &&
 434             mpd_status_get_state(c->status) == MPD_STATE_PLAY) {
 435                 lw->hide_cursor = true;
 436                 screen_queue_repaint();
 437         } else
 438                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 439                                                      timer_hide_cursor, c);
 440
 441         return FALSE;
 442 }
 443
 444 static void
 445 screen_queue_open(struct mpdclient *c)
 446 {
 447         playlist = &c->playlist;
 448
 449         assert(timer_hide_cursor_id == 0);
 450         if (options.hide_cursor > 0) {
 451                 lw->hide_cursor = false;
 452                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 453                                                      timer_hide_cursor, c);
 454         }
 455
 456         screen_queue_restore_selection();
 457 }
 458
 459 static void
 460 screen_queue_close(void)
 461 {
 462         if (timer_hide_cursor_id != 0) {
 463                 g_source_remove(timer_hide_cursor_id);
 464                 timer_hide_cursor_id = 0;
 465         }
 466
 467 #ifndef NCMPC_MINI
 468         if (options.scroll)
 469                 hscroll_clear(&hscroll);
 470 #endif
 471 }
 472
 473 static void
 474 screen_queue_resize(int cols, int rows)
 475 {
 476         list_window_resize(lw, cols, rows);
 477 }
 478
 479
 480 static void
 481 screen_queue_exit(void)
 482 {
 483         list_window_free(lw);
 484 }
 485
 486 static const char *
 487 screen_queue_title(char *str, size_t size)
 488 {
 489         if (options.host == NULL)
 490                 return _("Playlist");
 491
 492         g_snprintf(str, size, _("Playlist on %s"), options.host);
 493         return str;
 494 }
 495
 496 static void
 497 screen_queue_paint_callback(WINDOW *w, unsigned i,
 498                             unsigned y, unsigned width,
 499                             bool selected, G_GNUC_UNUSED void *data)
 500 {
 501         const struct mpd_song *song;
 502         struct hscroll *row_hscroll;
 503
 504         assert(playlist != NULL);
 505         assert(i < playlist_length(playlist));
 506
 507         song = playlist_get(playlist, i);
 508
 509 #ifdef NCMPC_MINI
 510         row_hscroll = NULL;
 511 #else
 512         row_hscroll = selected && options.scroll && lw->selected == i
 513                 ? &hscroll : NULL;
 514 #endif
 515
 516         paint_song_row(w, y, width, selected,
 517                        (int)mpd_song_get_id(song) == current_song_id,
 518                        song, row_hscroll);
 519 }
 520
 521 static void
 522 screen_queue_paint(void)
 523 {
 524 #ifndef NCMPC_MINI
 525         if (options.scroll)
 526                 hscroll_clear(&hscroll);
 527 #endif
 528
 529         list_window_paint2(lw, screen_queue_paint_callback, NULL);
 530 }
 531
 532 G_GNUC_PURE
 533 static int
 534 get_current_song_id(const struct mpd_status *status)
 535 {
 536         return status != NULL &&
 537                 (mpd_status_get_state(status) == MPD_STATE_PLAY ||
 538                  mpd_status_get_state(status) == MPD_STATE_PAUSE)
 539                 ? (int)mpd_status_get_song_id(status)
 540                 : -1;
 541 }
 542
 543 static void
 544 screen_queue_update(struct mpdclient *c)
 545 {
 546         if (c->events & MPD_IDLE_PLAYLIST)
 547                 screen_queue_restore_selection();
 548
 549         if ((c->events & MPD_IDLE_PLAYER) != 0 &&
 550             get_current_song_id(c->status) != current_song_id) {
 551                 current_song_id = get_current_song_id(c->status);
 552
 553                 /* center the cursor */
 554                 if (options.auto_center && current_song_id != -1 && ! lw->range_selection)
 555                         center_playing_item(c, false);
 556
 557                 screen_queue_repaint();
 558         } else if (c->events & MPD_IDLE_PLAYLIST) {
 559                 /* the playlist has changed, we must paint the new
 560                    version */
 561                 screen_queue_repaint();
 562         }
 563 }
 564
 565 #ifdef HAVE_GETMOUSE
 566 static bool
 567 handle_mouse_event(struct mpdclient *c)
 568 {
 569         int row;
 570         unsigned long bstate;
 571         unsigned old_selected;
 572
 573         if (screen_get_mouse_event(c, &bstate, &row) ||
 574             list_window_mouse(lw, bstate, row)) {
 575                 screen_queue_repaint();
 576                 return true;
 577         }
 578
 579         if (bstate & BUTTON1_DOUBLE_CLICKED) {
 580                 /* stop */
 581                 screen_cmd(c, CMD_STOP);
 582                 return true;
 583         }
 584
 585         old_selected = lw->selected;
 586         list_window_set_cursor(lw, lw->start + row);
 587
 588         if (bstate & BUTTON1_CLICKED) {
 589                 /* play */
 590                 const struct mpd_song *song = screen_queue_selected_song();
 591                 if (song != NULL) {
 592                         struct mpd_connection *connection =
 593                                 mpdclient_get_connection(c);
 594
 595                         if (connection != NULL &&
 596                             !mpd_run_play_id(connection,
 597                                              mpd_song_get_id(song)))
 598                                 mpdclient_handle_error(c);
 599                 }
 600         } else if (bstate & BUTTON3_CLICKED) {
 601                 /* delete */
 602                 if (lw->selected == old_selected)
 603                         mpdclient_cmd_delete(c, lw->selected);
 604
 605                 list_window_set_length(lw, playlist_length(playlist));
 606         }
 607
 608         screen_queue_save_selection();
 609         screen_queue_repaint();
 610
 611         return true;
 612 }
 613 #endif
 614
 615 static bool
 616 screen_queue_cmd(struct mpdclient *c, command_t cmd)
 617 {
 618         struct mpd_connection *connection;
 619         static command_t cached_cmd = CMD_NONE;
 620         command_t prev_cmd = cached_cmd;
 621         struct list_window_range range;
 622         const struct mpd_song *song;
 623
 624         cached_cmd = cmd;
 625
 626         lw->hide_cursor = false;
 627
 628         if (options.hide_cursor > 0) {
 629                 if (timer_hide_cursor_id != 0)
 630                         g_source_remove(timer_hide_cursor_id);
 631                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 632                                                      timer_hide_cursor, c);
 633         }
 634
 635         if (list_window_cmd(lw, cmd)) {
 636                 screen_queue_save_selection();
 637                 screen_queue_repaint();
 638                 return true;
 639         }
 640
 641         switch(cmd) {
 642         case CMD_SCREEN_UPDATE:
 643                 center_playing_item(c, prev_cmd == CMD_SCREEN_UPDATE);
 644                 screen_queue_repaint();
 645                 return false;
 646         case CMD_SELECT_PLAYING:
 647                 list_window_set_cursor(lw, playlist_get_index(&c->playlist,
 648                                                               c->song));
 649                 screen_queue_save_selection();
 650                 screen_queue_repaint();
 651                 return true;
 652
 653         case CMD_LIST_FIND:
 654         case CMD_LIST_RFIND:
 655         case CMD_LIST_FIND_NEXT:
 656         case CMD_LIST_RFIND_NEXT:
 657                 screen_find(lw, cmd, screen_queue_lw_callback, NULL);
 658                 screen_queue_save_selection();
 659                 screen_queue_repaint();
 660                 return true;
 661         case CMD_LIST_JUMP:
 662                 screen_jump(lw, screen_queue_lw_callback, NULL, NULL);
 663                 screen_queue_save_selection();
 664                 screen_queue_repaint();
 665                 return true;
 666
 667 #ifdef HAVE_GETMOUSE
 668         case CMD_MOUSE_EVENT:
 669                 return handle_mouse_event(c);
 670 #endif
 671
 672 #ifdef ENABLE_SONG_SCREEN
 673         case CMD_SCREEN_SONG:
 674                 if (screen_queue_selected_song() != NULL) {
 675                         screen_song_switch(c, screen_queue_selected_song());
 676                         return true;
 677                 }
 678
 679                 break;
 680 #endif
 681
 682 #ifdef ENABLE_LYRICS_SCREEN
 683         case CMD_SCREEN_LYRICS:
 684                 if (lw->selected < playlist_length(&c->playlist)) {
 685                         struct mpd_song *selected = playlist_get(&c->playlist, lw->selected);
 686                         bool follow = false;
 687
 688                         if (c->song && selected &&
 689                             !strcmp(mpd_song_get_uri(selected),
 690                                     mpd_song_get_uri(c->song)))
 691                                 follow = true;
 692
 693                         screen_lyrics_switch(c, selected, follow);
 694                         return true;
 695                 }
 696
 697                 break;
 698 #endif
 699         case CMD_SCREEN_SWAP:
 700                 screen_swap(c, playlist_get(&c->playlist, lw->selected));
 701                 return true;
 702
 703         default:
 704                 break;
 705         }
 706
 707         if (!mpdclient_is_connected(c))
 708                 return false;
 709
 710         switch(cmd) {
 711         case CMD_PLAY:
 712                 song = screen_queue_selected_song();
 713                 if (song == NULL)
 714                         return false;
 715
 716                 connection = mpdclient_get_connection(c);
 717                 if (connection != NULL &&
 718                     !mpd_run_play_id(connection, mpd_song_get_id(song)))
 719                         mpdclient_handle_error(c);
 720
 721                 return true;
 722
 723         case CMD_DELETE:
 724                 list_window_get_range(lw, &range);
 725                 mpdclient_cmd_delete_range(c, range.start, range.end);
 726
 727                 list_window_set_cursor(lw, range.start);
 728                 return true;
 729
 730         case CMD_SAVE_PLAYLIST:
 731                 playlist_save(c, NULL, NULL);
 732                 return true;
 733
 734         case CMD_ADD:
 735                 handle_add_to_playlist(c);
 736                 return true;
 737
 738         case CMD_SHUFFLE:
 739                 list_window_get_range(lw, &range);
 740                 if (range.end < range.start + 1)
 741                         /* No range selection, shuffle all list. */
 742                         break;
 743
 744                 connection = mpdclient_get_connection(c);
 745                 if (connection == NULL)
 746                         return true;
 747
 748                 if (mpd_run_shuffle_range(connection, range.start, range.end))
 749                         screen_status_message(_("Shuffled playlist"));
 750                 else
 751                         mpdclient_handle_error(c);
 752                 return true;
 753
 754         case CMD_LIST_MOVE_UP:
 755                 list_window_get_range(lw, &range);
 756                 if (range.start == 0 || range.end <= range.start)
 757                         return false;
 758
 759                 if (!mpdclient_cmd_move(c, range.end - 1, range.start - 1))
 760                         return true;
 761
 762                 lw->selected--;
 763                 lw->range_base--;
 764
 765                 screen_queue_save_selection();
 766                 return true;
 767
 768         case CMD_LIST_MOVE_DOWN:
 769                 list_window_get_range(lw, &range);
 770                 if (range.end >= playlist_length(&c->playlist))
 771                         return false;
 772
 773                 if (!mpdclient_cmd_move(c, range.start, range.end))
 774                         return true;
 775
 776                 lw->selected++;
 777                 lw->range_base++;
 778
 779                 screen_queue_save_selection();
 780                 return true;
 781
 782         case CMD_LOCATE:
 783                 if (screen_queue_selected_song() != NULL) {
 784                         screen_file_goto_song(c, screen_queue_selected_song());
 785                         return true;
 786                 }
 787
 788                 break;
 789
 790         default:
 791                 break;
 792         }
 793
 794         return false;
 795 }
 796
 797 const struct screen_functions screen_queue = {
 798         .init = screen_queue_init,
 799         .exit = screen_queue_exit,
 800         .open = screen_queue_open,
 801         .close = screen_queue_close,
 802         .resize = screen_queue_resize,
 803         .paint = screen_queue_paint,
 804         .update = screen_queue_update,
 805         .cmd = screen_queue_cmd,
 806         .get_title = screen_queue_title,
 807 };