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 bool must_scroll;
  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 list_window_t *lw = NULL;
  66 static guint timer_hide_cursor_id;
  67
  68 static void
  69 screen_playlist_paint(void);
  70
  71 static void
  72 playlist_repaint(void)
  73 {
  74         screen_playlist_paint();
  75         wrefresh(lw->w);
  76 }
  77
  78 static const struct mpd_song *
  79 playlist_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 playlist_save_selection(void)
  89 {
  90         selected_song_id = playlist_selected_song() != NULL
  91                 ? (int)mpd_song_get_id(playlist_selected_song())
  92                 : -1;
  93 }
  94
  95 static void
  96 playlist_restore_selection(void)
  97 {
  98         const struct mpd_song *song;
  99         int pos;
 100
 101         if (selected_song_id < 0)
 102                 /* there was no selection */
 103                 return;
 104
 105         song = playlist_selected_song();
 106         if (song != NULL &&
 107             mpd_song_get_id(song) == (unsigned)selected_song_id)
 108                 /* selection is still valid */
 109                 return;
 110
 111         pos = playlist_get_index_from_id(playlist, selected_song_id);
 112         if (pos >= 0)
 113                 lw->selected = pos;
 114
 115         list_window_check_selected(lw, playlist_length(playlist));
 116         playlist_save_selection();
 117 }
 118
 119 #ifndef NCMPC_MINI
 120 static char *
 121 format_duration(unsigned duration)
 122 {
 123         if (duration == 0)
 124                 return NULL;
 125
 126         return g_strdup_printf("%d:%02d", duration / 60, duration % 60);
 127 }
 128 #endif
 129
 130 static const char *
 131 list_callback(unsigned idx, bool *highlight, char **second_column, G_GNUC_UNUSED void *data)
 132 {
 133         static char songname[MAX_SONG_LENGTH];
 134 #ifndef NCMPC_MINI
 135         static scroll_state_t st;
 136 #endif
 137         struct mpd_song *song;
 138
 139         if (playlist == NULL || idx >= playlist_length(playlist))
 140                 return NULL;
 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)
 150                 *second_column = format_duration(mpd_song_get_duration(song));
 151
 152         if (idx == lw->selected)
 153         {
 154                 int second_column_len = 0;
 155                 if (second_column != NULL && *second_column != NULL)
 156                         second_column_len = strlen(*second_column);
 157                 if (options.scroll && utf8_width(songname) > (unsigned)(COLS - second_column_len - 1) )
 158                 {
 159                         static unsigned current_song;
 160                         char *tmp;
 161
 162                         must_scroll = true;
 163
 164                         if (current_song != lw->selected) {
 165                                 st.offset = 0;
 166                                 current_song = lw->selected;
 167                         }
 168
 169                         tmp = strscroll(songname, options.scroll_sep,
 170                                         MAX_SONG_LENGTH, &st);
 171                         g_strlcpy(songname, tmp, MAX_SONG_LENGTH);
 172                         g_free(tmp);
 173                 }
 174                 else
 175                         st.offset = 0;
 176         }
 177 #else
 178         (void)second_column;
 179 #endif
 180
 181         return songname;
 182 }
 183
 184 static void
 185 center_playing_item(struct mpdclient *c, bool center_cursor)
 186 {
 187         const struct mpd_song *song;
 188         unsigned length = c->playlist.list->len;
 189         int idx;
 190
 191         song = mpdclient_get_current_song(c);
 192         if (song == NULL)
 193                 return;
 194
 195         /* try to center the song that are playing */
 196         idx = playlist_get_index(&c->playlist, c->song);
 197         if (idx < 0)
 198                 return;
 199
 200         if (length < lw->rows)
 201         {
 202                 if (center_cursor)
 203                         list_window_set_selected(lw, idx);
 204                 return;
 205         }
 206
 207         list_window_center(lw, length, idx);
 208
 209         if (center_cursor) {
 210                 list_window_set_selected(lw, idx);
 211                 return;
 212         }
 213
 214         /* make sure the cursor is in the window */
 215         if (lw->selected < lw->start + options.scroll_offset) {
 216                 if (lw->start > 0)
 217                         lw->selected = lw->start + options.scroll_offset;
 218                 if (lw->range_selection) {
 219                         lw->selected_start = lw->range_base;
 220                         lw->selected_end = lw->selected;
 221                 } else {
 222                         lw->selected_start = lw->selected;
 223                         lw->selected_end = lw->selected;
 224                 }
 225         } else if (lw->selected > lw->start + lw->rows - 1 - options.scroll_offset) {
 226                 if (lw->start + lw->rows < length)
 227                         lw->selected = lw->start + lw->rows - 1 - options.scroll_offset;
 228                 if (lw->range_selection) {
 229                         lw->selected_start = lw->selected;
 230                         lw->selected_end = lw->range_base;
 231                 } else {
 232                         lw->selected_start = lw->selected;
 233                         lw->selected_end = lw->selected;
 234                 }
 235         }
 236 }
 237
 238 #ifndef NCMPC_MINI
 239 static void
 240 save_pre_completion_cb(GCompletion *gcmp, G_GNUC_UNUSED gchar *line,
 241                        void *data)
 242 {
 243         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 244         GList **list = tmp->list;
 245         struct mpdclient *c = tmp->c;
 246
 247         if( *list == NULL ) {
 248                 /* create completion list */
 249                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_PLAYLIST);
 250                 g_completion_add_items(gcmp, *list);
 251         }
 252 }
 253
 254 static void
 255 save_post_completion_cb(G_GNUC_UNUSED GCompletion *gcmp,
 256                         G_GNUC_UNUSED gchar *line, GList *items,
 257                         G_GNUC_UNUSED void *data)
 258 {
 259         if (g_list_length(items) >= 1)
 260                 screen_display_completion_list(items);
 261 }
 262 #endif
 263
 264 #ifndef NCMPC_MINI
 265 /**
 266  * Wrapper for strncmp().  We are not allowed to pass &strncmp to
 267  * g_completion_set_compare(), because strncmp() takes size_t where
 268  * g_completion_set_compare passes a gsize value.
 269  */
 270 static gint
 271 completion_strncmp(const gchar *s1, const gchar *s2, gsize n)
 272 {
 273         return strncmp(s1, s2, n);
 274 }
 275 #endif
 276
 277 int
 278 playlist_save(struct mpdclient *c, char *name, char *defaultname)
 279 {
 280         gchar *filename, *filename_utf8;
 281 #ifndef NCMPC_MINI
 282         GCompletion *gcmp;
 283         GList *list = NULL;
 284         completion_callback_data_t data;
 285 #endif
 286
 287 #ifdef NCMPC_MINI
 288         (void)defaultname;
 289 #endif
 290
 291 #ifndef NCMPC_MINI
 292         if (name == NULL) {
 293                 /* initialize completion support */
 294                 gcmp = g_completion_new(NULL);
 295                 g_completion_set_compare(gcmp, completion_strncmp);
 296                 data.list = &list;
 297                 data.dir_list = NULL;
 298                 data.c = c;
 299                 wrln_completion_callback_data = &data;
 300                 wrln_pre_completion_callback = save_pre_completion_cb;
 301                 wrln_post_completion_callback = save_post_completion_cb;
 302
 303
 304                 /* query the user for a filename */
 305                 filename = screen_readln(_("Save playlist as"),
 306                                          defaultname,
 307                                          NULL,
 308                                          gcmp);
 309
 310                 /* destroy completion support */
 311                 wrln_completion_callback_data = NULL;
 312                 wrln_pre_completion_callback = NULL;
 313                 wrln_post_completion_callback = NULL;
 314                 g_completion_free(gcmp);
 315                 list = string_list_free(list);
 316                 if( filename )
 317                         filename=g_strstrip(filename);
 318         } else
 319 #endif
 320                         filename=g_strdup(name);
 321
 322         if (filename == NULL)
 323                 return -1;
 324
 325         /* send save command to mpd */
 326
 327         filename_utf8 = locale_to_utf8(filename);
 328
 329         if (!mpd_run_save(c->connection, filename_utf8)) {
 330                 if (mpd_connection_get_error(c->connection) == MPD_ERROR_SERVER &&
 331                     mpd_connection_get_server_error(c->connection) == MPD_SERVER_ERROR_EXIST &&
 332                     mpd_connection_clear_error(c->connection)) {
 333                         char *buf;
 334                         int key;
 335
 336                         buf = g_strdup_printf(_("Replace %s [%s/%s] ? "),
 337                                               filename, YES, NO);
 338                         key = tolower(screen_getch(buf));
 339                         g_free(buf);
 340
 341                         if (key != YES[0]) {
 342                                 g_free(filename_utf8);
 343                                 g_free(filename);
 344                                 screen_status_printf(_("Aborted"));
 345                                 return -1;
 346                         }
 347
 348                         if (!mpd_run_rm(c->connection, filename_utf8) ||
 349                             !mpd_run_save(c->connection, filename_utf8)) {
 350                                 mpdclient_handle_error(c);
 351                                 g_free(filename_utf8);
 352                                 g_free(filename);
 353                                 return -1;
 354                         }
 355                 } else {
 356                         mpdclient_handle_error(c);
 357                         g_free(filename_utf8);
 358                         g_free(filename);
 359                         return -1;
 360                 }
 361         }
 362
 363         c->events |= MPD_IDLE_STORED_PLAYLIST;
 364
 365         g_free(filename_utf8);
 366
 367         /* success */
 368         screen_status_printf(_("Saved %s"), filename);
 369         g_free(filename);
 370         return 0;
 371 }
 372
 373 #ifndef NCMPC_MINI
 374 static void add_dir(GCompletion *gcmp, gchar *dir, GList **dir_list,
 375                     GList **list, struct mpdclient *c)
 376 {
 377         g_completion_remove_items(gcmp, *list);
 378         *list = string_list_remove(*list, dir);
 379         *list = gcmp_list_from_path(c, dir, *list, GCMP_TYPE_RFILE);
 380         g_completion_add_items(gcmp, *list);
 381         *dir_list = g_list_append(*dir_list, g_strdup(dir));
 382 }
 383
 384 static void add_pre_completion_cb(GCompletion *gcmp, gchar *line, void *data)
 385 {
 386         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 387         GList **dir_list = tmp->dir_list;
 388         GList **list = tmp->list;
 389         struct mpdclient *c = tmp->c;
 390
 391         if (*list == NULL) {
 392                 /* create initial list */
 393                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_RFILE);
 394                 g_completion_add_items(gcmp, *list);
 395         } else if (line && line[0] && line[strlen(line)-1]=='/' &&
 396                    string_list_find(*dir_list, line) == NULL) {
 397                 /* add directory content to list */
 398                 add_dir(gcmp, line, dir_list, list, c);
 399         }
 400 }
 401
 402 static void add_post_completion_cb(GCompletion *gcmp, gchar *line,
 403                                    GList *items, void *data)
 404 {
 405         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 406         GList **dir_list = tmp->dir_list;
 407         GList **list = tmp->list;
 408         struct mpdclient *c = tmp->c;
 409
 410         if (g_list_length(items) >= 1)
 411                 screen_display_completion_list(items);
 412
 413         if (line && line[0] && line[strlen(line) - 1] == '/' &&
 414             string_list_find(*dir_list, line) == NULL) {
 415                 /* add directory content to list */
 416                 add_dir(gcmp, line, dir_list, list, c);
 417         }
 418 }
 419 #endif
 420
 421 static int
 422 handle_add_to_playlist(struct mpdclient *c)
 423 {
 424         gchar *path;
 425 #ifndef NCMPC_MINI
 426         GCompletion *gcmp;
 427         GList *list = NULL;
 428         GList *dir_list = NULL;
 429         completion_callback_data_t data;
 430
 431         /* initialize completion support */
 432         gcmp = g_completion_new(NULL);
 433         g_completion_set_compare(gcmp, completion_strncmp);
 434         data.list = &list;
 435         data.dir_list = &dir_list;
 436         data.c = c;
 437         wrln_completion_callback_data = &data;
 438         wrln_pre_completion_callback = add_pre_completion_cb;
 439         wrln_post_completion_callback = add_post_completion_cb;
 440 #endif
 441
 442         /* get path */
 443         path = screen_readln(_("Add"),
 444                              NULL,
 445                              NULL,
 446 #ifdef NCMPC_MINI
 447                              NULL
 448 #else
 449                              gcmp
 450 #endif
 451                              );
 452
 453         /* destroy completion data */
 454 #ifndef NCMPC_MINI
 455         wrln_completion_callback_data = NULL;
 456         wrln_pre_completion_callback = NULL;
 457         wrln_post_completion_callback = NULL;
 458         g_completion_free(gcmp);
 459         string_list_free(list);
 460         string_list_free(dir_list);
 461 #endif
 462
 463         /* add the path to the playlist */
 464         if (path != NULL) {
 465                 char *path_utf8 = locale_to_utf8(path);
 466                 mpdclient_cmd_add_path(c, path_utf8);
 467                 g_free(path_utf8);
 468         }
 469
 470         g_free(path);
 471         return 0;
 472 }
 473
 474 static void
 475 screen_playlist_init(WINDOW *w, int cols, int rows)
 476 {
 477         lw = list_window_init(w, cols, rows);
 478 }
 479
 480 static gboolean
 481 timer_hide_cursor(gpointer data)
 482 {
 483         struct mpdclient *c = data;
 484
 485         assert(options.hide_cursor > 0);
 486         assert(timer_hide_cursor_id != 0);
 487
 488         timer_hide_cursor_id = 0;
 489
 490         /* hide the cursor when mpd is playing and the user is inactive */
 491
 492         if (c->status != NULL &&
 493             mpd_status_get_state(c->status) == MPD_STATE_PLAY) {
 494                 lw->hide_cursor = true;
 495                 playlist_repaint();
 496         } else
 497                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 498                                                      timer_hide_cursor, c);
 499
 500         return FALSE;
 501 }
 502
 503 static void
 504 screen_playlist_open(struct mpdclient *c)
 505 {
 506         playlist = &c->playlist;
 507
 508         assert(timer_hide_cursor_id == 0);
 509         if (options.hide_cursor > 0) {
 510                 lw->hide_cursor = false;
 511                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 512                                                      timer_hide_cursor, c);
 513         }
 514
 515         playlist_restore_selection();
 516 }
 517
 518 static void
 519 screen_playlist_close(void)
 520 {
 521         if (timer_hide_cursor_id != 0) {
 522                 g_source_remove(timer_hide_cursor_id);
 523                 timer_hide_cursor_id = 0;
 524         }
 525 }
 526
 527 static void
 528 screen_playlist_resize(int cols, int rows)
 529 {
 530         lw->cols = cols;
 531         lw->rows = rows;
 532 }
 533
 534
 535 static void
 536 screen_playlist_exit(void)
 537 {
 538         list_window_free(lw);
 539 }
 540
 541 static const char *
 542 screen_playlist_title(char *str, size_t size)
 543 {
 544         if (options.host == NULL)
 545                 return _("Playlist");
 546
 547         g_snprintf(str, size, _("Playlist on %s"), options.host);
 548         return str;
 549 }
 550
 551 static void
 552 screen_playlist_paint(void)
 553 {
 554 #ifndef NCMPC_MINI
 555         must_scroll = false;
 556 #endif
 557
 558         list_window_paint(lw, list_callback, NULL);
 559 }
 560
 561 static void
 562 screen_playlist_update(struct mpdclient *c)
 563 {
 564         static int prev_song_id = -1;
 565
 566         if (c->events & MPD_IDLE_PLAYLIST)
 567                 playlist_restore_selection();
 568
 569         current_song_id = c->status != NULL &&
 570                 (mpd_status_get_state(c->status) == MPD_STATE_PLAY ||
 571                  mpd_status_get_state(c->status) == MPD_STATE_PAUSE)
 572                 ? (int)mpd_status_get_song_id(c->status) : -1;
 573
 574         if (current_song_id != prev_song_id) {
 575                 prev_song_id = current_song_id;
 576
 577                 /* center the cursor */
 578                 if (options.auto_center && current_song_id != -1 && ! lw->range_selection)
 579                         center_playing_item(c, false);
 580
 581                 playlist_repaint();
 582 #ifndef NCMPC_MINI
 583         } else if (options.scroll && must_scroll) {
 584                 /* always repaint if horizontal scrolling is
 585                    enabled */
 586                 playlist_repaint();
 587 #endif
 588         } else if (c->events & MPD_IDLE_PLAYLIST) {
 589                 /* the playlist has changed, we must paint the new
 590                    version */
 591                 playlist_repaint();
 592         }
 593 }
 594
 595 #ifdef HAVE_GETMOUSE
 596 static bool
 597 handle_mouse_event(struct mpdclient *c)
 598 {
 599         int row;
 600         unsigned selected;
 601         unsigned long bstate;
 602
 603         if (screen_get_mouse_event(c, &bstate, &row) ||
 604             list_window_mouse(lw, playlist_length(playlist), bstate, row)) {
 605                 playlist_repaint();
 606                 return true;
 607         }
 608
 609         if (bstate & BUTTON1_DOUBLE_CLICKED) {
 610                 /* stop */
 611                 screen_cmd(c, CMD_STOP);
 612                 return true;
 613         }
 614
 615         selected = lw->start + row;
 616
 617         if (bstate & BUTTON1_CLICKED) {
 618                 /* play */
 619                 if (lw->start + row < playlist_length(playlist))
 620                         mpdclient_cmd_play(c, lw->start + row);
 621         } else if (bstate & BUTTON3_CLICKED) {
 622                 /* delete */
 623                 if (selected == lw->selected)
 624                         mpdclient_cmd_delete(c, lw->selected);
 625         }
 626
 627         lw->selected = selected;
 628         list_window_check_selected(lw, playlist_length(playlist));
 629         playlist_save_selection();
 630         playlist_repaint();
 631
 632         return true;
 633 }
 634 #endif
 635
 636 static bool
 637 screen_playlist_cmd(struct mpdclient *c, command_t cmd)
 638 {
 639         static command_t cached_cmd = CMD_NONE;
 640         command_t prev_cmd = cached_cmd;
 641         cached_cmd = cmd;
 642
 643         lw->hide_cursor = false;
 644
 645         if (options.hide_cursor > 0) {
 646                 if (timer_hide_cursor_id != 0)
 647                         g_source_remove(timer_hide_cursor_id);
 648                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 649                                                      timer_hide_cursor, c);
 650         }
 651
 652         if (list_window_cmd(lw, playlist_length(&c->playlist), cmd)) {
 653                 playlist_save_selection();
 654                 playlist_repaint();
 655                 return true;
 656         }
 657
 658         switch(cmd) {
 659         case CMD_SCREEN_UPDATE:
 660                 center_playing_item(c, prev_cmd == CMD_SCREEN_UPDATE);
 661                 playlist_repaint();
 662                 return false;
 663         case CMD_SELECT_PLAYING:
 664                 list_window_set_selected(lw, playlist_get_index(&c->playlist,
 665                                                                 c->song));
 666                 playlist_save_selection();
 667                 return true;
 668
 669         case CMD_LIST_FIND:
 670         case CMD_LIST_RFIND:
 671         case CMD_LIST_FIND_NEXT:
 672         case CMD_LIST_RFIND_NEXT:
 673                 screen_find(lw, playlist_length(&c->playlist),
 674                             cmd, list_callback, NULL);
 675                 playlist_save_selection();
 676                 playlist_repaint();
 677                 return true;
 678         case CMD_LIST_JUMP:
 679                 screen_jump(lw, list_callback, NULL);
 680                 playlist_save_selection();
 681                 playlist_repaint();
 682                 return true;
 683
 684 #ifdef HAVE_GETMOUSE
 685         case CMD_MOUSE_EVENT:
 686                 return handle_mouse_event(c);
 687 #endif
 688
 689 #ifdef ENABLE_SONG_SCREEN
 690         case CMD_SCREEN_SONG:
 691                 if (playlist_selected_song()) {
 692                         screen_song_switch(c, playlist_selected_song());
 693                         return true;
 694                 }
 695
 696                 break;
 697 #endif
 698
 699 #ifdef ENABLE_LYRICS_SCREEN
 700         case CMD_SCREEN_LYRICS:
 701                 if (lw->selected < playlist_length(&c->playlist)) {
 702                         struct mpd_song *selected = playlist_get(&c->playlist, lw->selected);
 703                         bool follow = false;
 704
 705                         if (c->song && selected &&
 706                             !strcmp(mpd_song_get_uri(selected),
 707                                     mpd_song_get_uri(c->song)))
 708                                 follow = true;
 709
 710                         screen_lyrics_switch(c, selected, follow);
 711                         return true;
 712                 }
 713
 714                 break;
 715 #endif
 716         case CMD_SCREEN_SWAP:
 717                 screen_swap(c, playlist_get(&c->playlist, lw->selected));
 718                 return true;
 719
 720         default:
 721                 break;
 722         }
 723
 724         if (!mpdclient_is_connected(c))
 725                 return false;
 726
 727         switch(cmd) {
 728         case CMD_PLAY:
 729                 mpdclient_cmd_play(c, lw->selected);
 730                 return true;
 731
 732         case CMD_DELETE:
 733                 if (lw->range_selection) {
 734                         mpdclient_cmd_delete_range(c, lw->selected_start,
 735                                                    lw->selected_end + 1);
 736                 } else {
 737                         mpdclient_cmd_delete(c, lw->selected);
 738                 }
 739
 740                 lw->selected = lw->selected_end = lw->selected_start;
 741                 lw->range_selection = false;
 742                 return true;
 743
 744         case CMD_SAVE_PLAYLIST:
 745                 playlist_save(c, NULL, NULL);
 746                 return true;
 747
 748         case CMD_ADD:
 749                 handle_add_to_playlist(c);
 750                 return true;
 751
 752         case CMD_SHUFFLE:
 753         {
 754                 if(!lw->range_selection)
 755                         /* No range selection, shuffle all list. */
 756                         break;
 757
 758                 if (mpd_run_shuffle_range(c->connection, lw->selected_start,
 759                                           lw->selected_end + 1))
 760                         screen_status_message(_("Shuffled playlist"));
 761                 else
 762                         mpdclient_handle_error(c);
 763                 return true;
 764         }
 765
 766         case CMD_LIST_MOVE_UP:
 767                 if(lw->selected_start == 0)
 768                         return false;
 769                 if(lw->range_selection)
 770                 {
 771                         unsigned i = lw->selected_start;
 772                         unsigned last_selected = lw->selected;
 773                         for(; i <= lw->selected_end; ++i)
 774                                 mpdclient_cmd_move(c, i, i-1);
 775                         lw->selected_start--;
 776                         lw->selected_end--;
 777                         lw->selected = last_selected - 1;
 778                         lw->range_base--;
 779                 }
 780                 else
 781                 {
 782                         mpdclient_cmd_move(c, lw->selected, lw->selected-1);
 783                         lw->selected--;
 784                         lw->selected_start--;
 785                         lw->selected_end--;
 786                 }
 787
 788                 playlist_save_selection();
 789                 return true;
 790
 791         case CMD_LIST_MOVE_DOWN:
 792                 if(lw->selected_end+1 >= playlist_length(&c->playlist))
 793                         return false;
 794                 if(lw->range_selection)
 795                 {
 796                         int i = lw->selected_end;
 797                         unsigned last_selected = lw->selected;
 798                         for(; i >= (int)lw->selected_start; --i)
 799                                 mpdclient_cmd_move(c, i, i+1);
 800                         lw->selected_start++;
 801                         lw->selected_end++;
 802                         lw->selected = last_selected + 1;
 803                         lw->range_base++;
 804                 }
 805                 else
 806                 {
 807                         mpdclient_cmd_move(c, lw->selected, lw->selected+1);
 808                         lw->selected++;
 809                         lw->selected_start++;
 810                         lw->selected_end++;
 811                 }
 812
 813                 playlist_save_selection();
 814                 return true;
 815
 816         case CMD_LOCATE:
 817                 if (playlist_selected_song()) {
 818                         screen_file_goto_song(c, playlist_selected_song());
 819                         return true;
 820                 }
 821
 822                 break;
 823
 824         default:
 825                 break;
 826         }
 827
 828         return false;
 829 }
 830
 831 const struct screen_functions screen_playlist = {
 832         .init = screen_playlist_init,
 833         .exit = screen_playlist_exit,
 834         .open = screen_playlist_open,
 835         .close = screen_playlist_close,
 836         .resize = screen_playlist_resize,
 837         .paint = screen_playlist_paint,
 838         .update = screen_playlist_update,
 839         .cmd = screen_playlist_cmd,
 840         .get_title = screen_playlist_title,
 841 };