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         if (selected_song_id < 0)
 103                 /* there was no selection */
 104                 return;
 105
 106         song = playlist_selected_song();
 107         if (song != NULL &&
 108             mpd_song_get_id(song) == (unsigned)selected_song_id)
 109                 /* selection is still valid */
 110                 return;
 111
 112         pos = playlist_get_index_from_id(playlist, selected_song_id);
 113         if (pos >= 0)
 114                 list_window_set_cursor(lw, pos);
 115
 116         list_window_check_selected(lw, playlist_length(playlist));
 117         playlist_save_selection();
 118 }
 119
 120 #ifndef NCMPC_MINI
 121 static gboolean
 122 scroll_timer_callback(G_GNUC_UNUSED gpointer data)
 123 {
 124         scroll_source_id = 0;
 125
 126         hscroll_step(&hscroll);
 127         playlist_repaint();
 128         return false;
 129 }
 130 #endif
 131
 132 static const char *
 133 list_callback(unsigned idx, bool *highlight, char **second_column, G_GNUC_UNUSED void *data)
 134 {
 135         static char songname[MAX_SONG_LENGTH];
 136         struct mpd_song *song;
 137
 138         if (playlist == NULL || idx >= playlist_length(playlist))
 139                 return NULL;
 140
 141         song = playlist_get(playlist, idx);
 142         if ((int)mpd_song_get_id(song) == current_song_id)
 143                 *highlight = true;
 144
 145         strfsong(songname, MAX_SONG_LENGTH, options.list_format, song);
 146
 147 #ifndef NCMPC_MINI
 148         if (second_column != NULL && mpd_song_get_duration(song) > 0) {
 149                 char duration[32];
 150                 format_duration_short(duration, sizeof(duration),
 151                                       mpd_song_get_duration(song));
 152                 *second_column = g_strdup(duration);
 153         }
 154
 155         if (idx == lw->selected)
 156         {
 157                 int second_column_len = 0;
 158                 if (second_column != NULL && *second_column != NULL)
 159                         second_column_len = strlen(*second_column);
 160                 if (options.scroll && utf8_width(songname) > (unsigned)(COLS - second_column_len - 1) )
 161                 {
 162                         static unsigned current_song;
 163                         char *tmp;
 164
 165                         if (current_song != lw->selected) {
 166                                 hscroll_reset(&hscroll);
 167                                 current_song = lw->selected;
 168                         }
 169
 170                         tmp = strscroll(&hscroll, songname, options.scroll_sep,
 171                                         MAX_SONG_LENGTH);
 172                         g_strlcpy(songname, tmp, MAX_SONG_LENGTH);
 173                         g_free(tmp);
 174
 175                         if (scroll_source_id == 0)
 176                                 scroll_source_id =
 177                                         g_timeout_add(1000,
 178                                                       scroll_timer_callback,
 179                                                       NULL);
 180                 } else {
 181                         hscroll_reset(&hscroll);
 182
 183                         if (scroll_source_id != 0) {
 184                                 g_source_remove(scroll_source_id);
 185                                 scroll_source_id = 0;
 186                         }
 187                 }
 188         }
 189 #else
 190         (void)second_column;
 191 #endif
 192
 193         return songname;
 194 }
 195
 196 static void
 197 center_playing_item(struct mpdclient *c, bool center_cursor)
 198 {
 199         const struct mpd_song *song;
 200         unsigned length = c->playlist.list->len;
 201         int idx;
 202
 203         song = mpdclient_get_current_song(c);
 204         if (song == NULL)
 205                 return;
 206
 207         /* try to center the song that are playing */
 208         idx = playlist_get_index(&c->playlist, c->song);
 209         if (idx < 0)
 210                 return;
 211
 212         if (length < lw->rows)
 213         {
 214                 if (center_cursor)
 215                         list_window_set_cursor(lw, idx);
 216                 return;
 217         }
 218
 219         list_window_center(lw, length, idx);
 220
 221         if (center_cursor) {
 222                 list_window_set_cursor(lw, idx);
 223                 return;
 224         }
 225
 226         /* make sure the cursor is in the window */
 227         list_window_fetch_cursor(lw, length);
 228 }
 229
 230 #ifndef NCMPC_MINI
 231 static void
 232 save_pre_completion_cb(GCompletion *gcmp, G_GNUC_UNUSED gchar *line,
 233                        void *data)
 234 {
 235         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 236         GList **list = tmp->list;
 237         struct mpdclient *c = tmp->c;
 238
 239         if( *list == NULL ) {
 240                 /* create completion list */
 241                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_PLAYLIST);
 242                 g_completion_add_items(gcmp, *list);
 243         }
 244 }
 245
 246 static void
 247 save_post_completion_cb(G_GNUC_UNUSED GCompletion *gcmp,
 248                         G_GNUC_UNUSED gchar *line, GList *items,
 249                         G_GNUC_UNUSED void *data)
 250 {
 251         if (g_list_length(items) >= 1)
 252                 screen_display_completion_list(items);
 253 }
 254 #endif
 255
 256 #ifndef NCMPC_MINI
 257 /**
 258  * Wrapper for strncmp().  We are not allowed to pass &strncmp to
 259  * g_completion_set_compare(), because strncmp() takes size_t where
 260  * g_completion_set_compare passes a gsize value.
 261  */
 262 static gint
 263 completion_strncmp(const gchar *s1, const gchar *s2, gsize n)
 264 {
 265         return strncmp(s1, s2, n);
 266 }
 267 #endif
 268
 269 int
 270 playlist_save(struct mpdclient *c, char *name, char *defaultname)
 271 {
 272         struct mpd_connection *connection;
 273         gchar *filename, *filename_utf8;
 274 #ifndef NCMPC_MINI
 275         GCompletion *gcmp;
 276         GList *list = NULL;
 277         completion_callback_data_t data;
 278 #endif
 279
 280 #ifdef NCMPC_MINI
 281         (void)defaultname;
 282 #endif
 283
 284 #ifndef NCMPC_MINI
 285         if (name == NULL) {
 286                 /* initialize completion support */
 287                 gcmp = g_completion_new(NULL);
 288                 g_completion_set_compare(gcmp, completion_strncmp);
 289                 data.list = &list;
 290                 data.dir_list = NULL;
 291                 data.c = c;
 292                 wrln_completion_callback_data = &data;
 293                 wrln_pre_completion_callback = save_pre_completion_cb;
 294                 wrln_post_completion_callback = save_post_completion_cb;
 295
 296
 297                 /* query the user for a filename */
 298                 filename = screen_readln(_("Save playlist as"),
 299                                          defaultname,
 300                                          NULL,
 301                                          gcmp);
 302
 303                 /* destroy completion support */
 304                 wrln_completion_callback_data = NULL;
 305                 wrln_pre_completion_callback = NULL;
 306                 wrln_post_completion_callback = NULL;
 307                 g_completion_free(gcmp);
 308                 list = string_list_free(list);
 309                 if( filename )
 310                         filename=g_strstrip(filename);
 311         } else
 312 #endif
 313                         filename=g_strdup(name);
 314
 315         if (filename == NULL)
 316                 return -1;
 317
 318         /* send save command to mpd */
 319
 320         filename_utf8 = locale_to_utf8(filename);
 321
 322         connection = mpdclient_get_connection(c);
 323         if (!mpd_run_save(connection, filename_utf8)) {
 324                 if (mpd_connection_get_error(connection) == MPD_ERROR_SERVER &&
 325                     mpd_connection_get_server_error(connection) == MPD_SERVER_ERROR_EXIST &&
 326                     mpd_connection_clear_error(connection)) {
 327                         char *buf;
 328                         int key;
 329
 330                         buf = g_strdup_printf(_("Replace %s [%s/%s] ? "),
 331                                               filename, YES, NO);
 332                         key = tolower(screen_getch(buf));
 333                         g_free(buf);
 334
 335                         if (key != YES[0]) {
 336                                 g_free(filename_utf8);
 337                                 g_free(filename);
 338                                 screen_status_printf(_("Aborted"));
 339                                 return -1;
 340                         }
 341
 342                         if (!mpd_run_rm(connection, filename_utf8) ||
 343                             !mpd_run_save(connection, filename_utf8)) {
 344                                 mpdclient_handle_error(c);
 345                                 g_free(filename_utf8);
 346                                 g_free(filename);
 347                                 return -1;
 348                         }
 349                 } else {
 350                         mpdclient_handle_error(c);
 351                         g_free(filename_utf8);
 352                         g_free(filename);
 353                         return -1;
 354                 }
 355         }
 356
 357         c->events |= MPD_IDLE_STORED_PLAYLIST;
 358
 359         g_free(filename_utf8);
 360
 361         /* success */
 362         screen_status_printf(_("Saved %s"), filename);
 363         g_free(filename);
 364         return 0;
 365 }
 366
 367 #ifndef NCMPC_MINI
 368 static void add_dir(GCompletion *gcmp, gchar *dir, GList **dir_list,
 369                     GList **list, struct mpdclient *c)
 370 {
 371         g_completion_remove_items(gcmp, *list);
 372         *list = string_list_remove(*list, dir);
 373         *list = gcmp_list_from_path(c, dir, *list, GCMP_TYPE_RFILE);
 374         g_completion_add_items(gcmp, *list);
 375         *dir_list = g_list_append(*dir_list, g_strdup(dir));
 376 }
 377
 378 static void add_pre_completion_cb(GCompletion *gcmp, gchar *line, void *data)
 379 {
 380         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 381         GList **dir_list = tmp->dir_list;
 382         GList **list = tmp->list;
 383         struct mpdclient *c = tmp->c;
 384
 385         if (*list == NULL) {
 386                 /* create initial list */
 387                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_RFILE);
 388                 g_completion_add_items(gcmp, *list);
 389         } else if (line && line[0] && line[strlen(line)-1]=='/' &&
 390                    string_list_find(*dir_list, line) == NULL) {
 391                 /* add directory content to list */
 392                 add_dir(gcmp, line, dir_list, list, c);
 393         }
 394 }
 395
 396 static void add_post_completion_cb(GCompletion *gcmp, gchar *line,
 397                                    GList *items, void *data)
 398 {
 399         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 400         GList **dir_list = tmp->dir_list;
 401         GList **list = tmp->list;
 402         struct mpdclient *c = tmp->c;
 403
 404         if (g_list_length(items) >= 1)
 405                 screen_display_completion_list(items);
 406
 407         if (line && line[0] && line[strlen(line) - 1] == '/' &&
 408             string_list_find(*dir_list, line) == NULL) {
 409                 /* add directory content to list */
 410                 add_dir(gcmp, line, dir_list, list, c);
 411         }
 412 }
 413 #endif
 414
 415 static int
 416 handle_add_to_playlist(struct mpdclient *c)
 417 {
 418         gchar *path;
 419 #ifndef NCMPC_MINI
 420         GCompletion *gcmp;
 421         GList *list = NULL;
 422         GList *dir_list = NULL;
 423         completion_callback_data_t data;
 424
 425         /* initialize completion support */
 426         gcmp = g_completion_new(NULL);
 427         g_completion_set_compare(gcmp, completion_strncmp);
 428         data.list = &list;
 429         data.dir_list = &dir_list;
 430         data.c = c;
 431         wrln_completion_callback_data = &data;
 432         wrln_pre_completion_callback = add_pre_completion_cb;
 433         wrln_post_completion_callback = add_post_completion_cb;
 434 #endif
 435
 436         /* get path */
 437         path = screen_readln(_("Add"),
 438                              NULL,
 439                              NULL,
 440 #ifdef NCMPC_MINI
 441                              NULL
 442 #else
 443                              gcmp
 444 #endif
 445                              );
 446
 447         /* destroy completion data */
 448 #ifndef NCMPC_MINI
 449         wrln_completion_callback_data = NULL;
 450         wrln_pre_completion_callback = NULL;
 451         wrln_post_completion_callback = NULL;
 452         g_completion_free(gcmp);
 453         string_list_free(list);
 454         string_list_free(dir_list);
 455 #endif
 456
 457         /* add the path to the playlist */
 458         if (path != NULL) {
 459                 char *path_utf8 = locale_to_utf8(path);
 460                 mpdclient_cmd_add_path(c, path_utf8);
 461                 g_free(path_utf8);
 462         }
 463
 464         g_free(path);
 465         return 0;
 466 }
 467
 468 static void
 469 screen_playlist_init(WINDOW *w, int cols, int rows)
 470 {
 471         lw = list_window_init(w, cols, rows);
 472 }
 473
 474 static gboolean
 475 timer_hide_cursor(gpointer data)
 476 {
 477         struct mpdclient *c = data;
 478
 479         assert(options.hide_cursor > 0);
 480         assert(timer_hide_cursor_id != 0);
 481
 482         timer_hide_cursor_id = 0;
 483
 484         /* hide the cursor when mpd is playing and the user is inactive */
 485
 486         if (c->status != NULL &&
 487             mpd_status_get_state(c->status) == MPD_STATE_PLAY) {
 488                 lw->hide_cursor = true;
 489                 playlist_repaint();
 490         } else
 491                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 492                                                      timer_hide_cursor, c);
 493
 494         return FALSE;
 495 }
 496
 497 static void
 498 screen_playlist_open(struct mpdclient *c)
 499 {
 500         playlist = &c->playlist;
 501
 502         assert(timer_hide_cursor_id == 0);
 503         if (options.hide_cursor > 0) {
 504                 lw->hide_cursor = false;
 505                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 506                                                      timer_hide_cursor, c);
 507         }
 508
 509         playlist_restore_selection();
 510 }
 511
 512 static void
 513 screen_playlist_close(void)
 514 {
 515         if (timer_hide_cursor_id != 0) {
 516                 g_source_remove(timer_hide_cursor_id);
 517                 timer_hide_cursor_id = 0;
 518         }
 519 }
 520
 521 static void
 522 screen_playlist_resize(int cols, int rows)
 523 {
 524         lw->cols = cols;
 525         lw->rows = 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, playlist_length(playlist), 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         list_window_check_selected(lw, playlist_length(playlist));
 613         playlist_save_selection();
 614         playlist_repaint();
 615
 616         return true;
 617 }
 618 #endif
 619
 620 static bool
 621 screen_playlist_cmd(struct mpdclient *c, command_t cmd)
 622 {
 623         struct mpd_connection *connection;
 624         static command_t cached_cmd = CMD_NONE;
 625         command_t prev_cmd = cached_cmd;
 626         cached_cmd = cmd;
 627
 628         lw->hide_cursor = false;
 629
 630         if (options.hide_cursor > 0) {
 631                 if (timer_hide_cursor_id != 0)
 632                         g_source_remove(timer_hide_cursor_id);
 633                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 634                                                      timer_hide_cursor, c);
 635         }
 636
 637         if (list_window_cmd(lw, playlist_length(&c->playlist), cmd)) {
 638                 playlist_save_selection();
 639                 playlist_repaint();
 640                 return true;
 641         }
 642
 643         switch(cmd) {
 644         case CMD_SCREEN_UPDATE:
 645                 center_playing_item(c, prev_cmd == CMD_SCREEN_UPDATE);
 646                 playlist_repaint();
 647                 return false;
 648         case CMD_SELECT_PLAYING:
 649                 list_window_set_cursor(lw, playlist_get_index(&c->playlist,
 650                                                               c->song));
 651                 playlist_save_selection();
 652                 playlist_repaint();
 653                 return true;
 654
 655         case CMD_LIST_FIND:
 656         case CMD_LIST_RFIND:
 657         case CMD_LIST_FIND_NEXT:
 658         case CMD_LIST_RFIND_NEXT:
 659                 screen_find(lw, playlist_length(&c->playlist),
 660                             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);
 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                 if (lw->range_selection) {
 720                         mpdclient_cmd_delete_range(c, lw->selected_start,
 721                                                    lw->selected_end + 1);
 722                 } else {
 723                         mpdclient_cmd_delete(c, lw->selected);
 724                 }
 725
 726                 list_window_set_cursor(lw, lw->selected_start);
 727                 return true;
 728
 729         case CMD_SAVE_PLAYLIST:
 730                 playlist_save(c, NULL, NULL);
 731                 return true;
 732
 733         case CMD_ADD:
 734                 handle_add_to_playlist(c);
 735                 return true;
 736
 737         case CMD_SHUFFLE:
 738                 if(!lw->range_selection)
 739                         /* No range selection, shuffle all list. */
 740                         break;
 741
 742                 connection = mpdclient_get_connection(c);
 743                 if (mpd_run_shuffle_range(connection, lw->selected_start,
 744                                           lw->selected_end + 1))
 745                         screen_status_message(_("Shuffled playlist"));
 746                 else
 747                         mpdclient_handle_error(c);
 748                 return true;
 749
 750         case CMD_LIST_MOVE_UP:
 751                 if(lw->selected_start == 0)
 752                         return false;
 753                 if(lw->range_selection)
 754                 {
 755                         unsigned i = lw->selected_start;
 756                         unsigned last_selected = lw->selected;
 757                         for(; i <= lw->selected_end; ++i)
 758                                 mpdclient_cmd_move(c, i, i-1);
 759                         lw->selected_start--;
 760                         lw->selected_end--;
 761                         lw->selected = last_selected - 1;
 762                         lw->range_base--;
 763                 }
 764                 else
 765                 {
 766                         mpdclient_cmd_move(c, lw->selected, lw->selected-1);
 767                         lw->selected--;
 768                         lw->selected_start--;
 769                         lw->selected_end--;
 770                 }
 771
 772                 playlist_save_selection();
 773                 return true;
 774
 775         case CMD_LIST_MOVE_DOWN:
 776                 if(lw->selected_end+1 >= playlist_length(&c->playlist))
 777                         return false;
 778                 if(lw->range_selection)
 779                 {
 780                         int i = lw->selected_end;
 781                         unsigned last_selected = lw->selected;
 782                         for(; i >= (int)lw->selected_start; --i)
 783                                 mpdclient_cmd_move(c, i, i+1);
 784                         lw->selected_start++;
 785                         lw->selected_end++;
 786                         lw->selected = last_selected + 1;
 787                         lw->range_base++;
 788                 }
 789                 else
 790                 {
 791                         mpdclient_cmd_move(c, lw->selected, lw->selected+1);
 792                         lw->selected++;
 793                         lw->selected_start++;
 794                         lw->selected_end++;
 795                 }
 796
 797                 playlist_save_selection();
 798                 return true;
 799
 800         case CMD_LOCATE:
 801                 if (playlist_selected_song()) {
 802                         screen_file_goto_song(c, playlist_selected_song());
 803                         return true;
 804                 }
 805
 806                 break;
 807
 808         default:
 809                 break;
 810         }
 811
 812         return false;
 813 }
 814
 815 const struct screen_functions screen_playlist = {
 816         .init = screen_playlist_init,
 817         .exit = screen_playlist_exit,
 818         .open = screen_playlist_open,
 819         .close = screen_playlist_close,
 820         .resize = screen_playlist_resize,
 821         .paint = screen_playlist_paint,
 822         .update = screen_playlist_update,
 823         .cmd = screen_playlist_cmd,
 824         .get_title = screen_playlist_title,
 825 };