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 list_window_t *lw = NULL;
  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                 lw->selected = 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_selected(lw, idx);
 216                 return;
 217         }
 218
 219         list_window_center(lw, length, idx);
 220
 221         if (center_cursor) {
 222                 list_window_set_selected(lw, idx);
 223                 return;
 224         }
 225
 226         /* make sure the cursor is in the window */
 227         if (lw->selected < lw->start + options.scroll_offset) {
 228                 if (lw->start > 0)
 229                         lw->selected = lw->start + options.scroll_offset;
 230                 if (lw->range_selection) {
 231                         lw->selected_start = lw->range_base;
 232                         lw->selected_end = lw->selected;
 233                 } else {
 234                         lw->selected_start = lw->selected;
 235                         lw->selected_end = lw->selected;
 236                 }
 237         } else if (lw->selected > lw->start + lw->rows - 1 - options.scroll_offset) {
 238                 if (lw->start + lw->rows < length)
 239                         lw->selected = lw->start + lw->rows - 1 - options.scroll_offset;
 240                 if (lw->range_selection) {
 241                         lw->selected_start = lw->selected;
 242                         lw->selected_end = lw->range_base;
 243                 } else {
 244                         lw->selected_start = lw->selected;
 245                         lw->selected_end = lw->selected;
 246                 }
 247         }
 248 }
 249
 250 #ifndef NCMPC_MINI
 251 static void
 252 save_pre_completion_cb(GCompletion *gcmp, G_GNUC_UNUSED gchar *line,
 253                        void *data)
 254 {
 255         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 256         GList **list = tmp->list;
 257         struct mpdclient *c = tmp->c;
 258
 259         if( *list == NULL ) {
 260                 /* create completion list */
 261                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_PLAYLIST);
 262                 g_completion_add_items(gcmp, *list);
 263         }
 264 }
 265
 266 static void
 267 save_post_completion_cb(G_GNUC_UNUSED GCompletion *gcmp,
 268                         G_GNUC_UNUSED gchar *line, GList *items,
 269                         G_GNUC_UNUSED void *data)
 270 {
 271         if (g_list_length(items) >= 1)
 272                 screen_display_completion_list(items);
 273 }
 274 #endif
 275
 276 #ifndef NCMPC_MINI
 277 /**
 278  * Wrapper for strncmp().  We are not allowed to pass &strncmp to
 279  * g_completion_set_compare(), because strncmp() takes size_t where
 280  * g_completion_set_compare passes a gsize value.
 281  */
 282 static gint
 283 completion_strncmp(const gchar *s1, const gchar *s2, gsize n)
 284 {
 285         return strncmp(s1, s2, n);
 286 }
 287 #endif
 288
 289 int
 290 playlist_save(struct mpdclient *c, char *name, char *defaultname)
 291 {
 292         gchar *filename, *filename_utf8;
 293 #ifndef NCMPC_MINI
 294         GCompletion *gcmp;
 295         GList *list = NULL;
 296         completion_callback_data_t data;
 297 #endif
 298
 299 #ifdef NCMPC_MINI
 300         (void)defaultname;
 301 #endif
 302
 303 #ifndef NCMPC_MINI
 304         if (name == NULL) {
 305                 /* initialize completion support */
 306                 gcmp = g_completion_new(NULL);
 307                 g_completion_set_compare(gcmp, completion_strncmp);
 308                 data.list = &list;
 309                 data.dir_list = NULL;
 310                 data.c = c;
 311                 wrln_completion_callback_data = &data;
 312                 wrln_pre_completion_callback = save_pre_completion_cb;
 313                 wrln_post_completion_callback = save_post_completion_cb;
 314
 315
 316                 /* query the user for a filename */
 317                 filename = screen_readln(_("Save playlist as"),
 318                                          defaultname,
 319                                          NULL,
 320                                          gcmp);
 321
 322                 /* destroy completion support */
 323                 wrln_completion_callback_data = NULL;
 324                 wrln_pre_completion_callback = NULL;
 325                 wrln_post_completion_callback = NULL;
 326                 g_completion_free(gcmp);
 327                 list = string_list_free(list);
 328                 if( filename )
 329                         filename=g_strstrip(filename);
 330         } else
 331 #endif
 332                         filename=g_strdup(name);
 333
 334         if (filename == NULL)
 335                 return -1;
 336
 337         /* send save command to mpd */
 338
 339         filename_utf8 = locale_to_utf8(filename);
 340
 341         if (!mpd_run_save(c->connection, filename_utf8)) {
 342                 if (mpd_connection_get_error(c->connection) == MPD_ERROR_SERVER &&
 343                     mpd_connection_get_server_error(c->connection) == MPD_SERVER_ERROR_EXIST &&
 344                     mpd_connection_clear_error(c->connection)) {
 345                         char *buf;
 346                         int key;
 347
 348                         buf = g_strdup_printf(_("Replace %s [%s/%s] ? "),
 349                                               filename, YES, NO);
 350                         key = tolower(screen_getch(buf));
 351                         g_free(buf);
 352
 353                         if (key != YES[0]) {
 354                                 g_free(filename_utf8);
 355                                 g_free(filename);
 356                                 screen_status_printf(_("Aborted"));
 357                                 return -1;
 358                         }
 359
 360                         if (!mpd_run_rm(c->connection, filename_utf8) ||
 361                             !mpd_run_save(c->connection, filename_utf8)) {
 362                                 mpdclient_handle_error(c);
 363                                 g_free(filename_utf8);
 364                                 g_free(filename);
 365                                 return -1;
 366                         }
 367                 } else {
 368                         mpdclient_handle_error(c);
 369                         g_free(filename_utf8);
 370                         g_free(filename);
 371                         return -1;
 372                 }
 373         }
 374
 375         c->events |= MPD_IDLE_STORED_PLAYLIST;
 376
 377         g_free(filename_utf8);
 378
 379         /* success */
 380         screen_status_printf(_("Saved %s"), filename);
 381         g_free(filename);
 382         return 0;
 383 }
 384
 385 #ifndef NCMPC_MINI
 386 static void add_dir(GCompletion *gcmp, gchar *dir, GList **dir_list,
 387                     GList **list, struct mpdclient *c)
 388 {
 389         g_completion_remove_items(gcmp, *list);
 390         *list = string_list_remove(*list, dir);
 391         *list = gcmp_list_from_path(c, dir, *list, GCMP_TYPE_RFILE);
 392         g_completion_add_items(gcmp, *list);
 393         *dir_list = g_list_append(*dir_list, g_strdup(dir));
 394 }
 395
 396 static void add_pre_completion_cb(GCompletion *gcmp, gchar *line, void *data)
 397 {
 398         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 399         GList **dir_list = tmp->dir_list;
 400         GList **list = tmp->list;
 401         struct mpdclient *c = tmp->c;
 402
 403         if (*list == NULL) {
 404                 /* create initial list */
 405                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_RFILE);
 406                 g_completion_add_items(gcmp, *list);
 407         } else 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
 414 static void add_post_completion_cb(GCompletion *gcmp, gchar *line,
 415                                    GList *items, void *data)
 416 {
 417         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 418         GList **dir_list = tmp->dir_list;
 419         GList **list = tmp->list;
 420         struct mpdclient *c = tmp->c;
 421
 422         if (g_list_length(items) >= 1)
 423                 screen_display_completion_list(items);
 424
 425         if (line && line[0] && line[strlen(line) - 1] == '/' &&
 426             string_list_find(*dir_list, line) == NULL) {
 427                 /* add directory content to list */
 428                 add_dir(gcmp, line, dir_list, list, c);
 429         }
 430 }
 431 #endif
 432
 433 static int
 434 handle_add_to_playlist(struct mpdclient *c)
 435 {
 436         gchar *path;
 437 #ifndef NCMPC_MINI
 438         GCompletion *gcmp;
 439         GList *list = NULL;
 440         GList *dir_list = NULL;
 441         completion_callback_data_t data;
 442
 443         /* initialize completion support */
 444         gcmp = g_completion_new(NULL);
 445         g_completion_set_compare(gcmp, completion_strncmp);
 446         data.list = &list;
 447         data.dir_list = &dir_list;
 448         data.c = c;
 449         wrln_completion_callback_data = &data;
 450         wrln_pre_completion_callback = add_pre_completion_cb;
 451         wrln_post_completion_callback = add_post_completion_cb;
 452 #endif
 453
 454         /* get path */
 455         path = screen_readln(_("Add"),
 456                              NULL,
 457                              NULL,
 458 #ifdef NCMPC_MINI
 459                              NULL
 460 #else
 461                              gcmp
 462 #endif
 463                              );
 464
 465         /* destroy completion data */
 466 #ifndef NCMPC_MINI
 467         wrln_completion_callback_data = NULL;
 468         wrln_pre_completion_callback = NULL;
 469         wrln_post_completion_callback = NULL;
 470         g_completion_free(gcmp);
 471         string_list_free(list);
 472         string_list_free(dir_list);
 473 #endif
 474
 475         /* add the path to the playlist */
 476         if (path != NULL) {
 477                 char *path_utf8 = locale_to_utf8(path);
 478                 mpdclient_cmd_add_path(c, path_utf8);
 479                 g_free(path_utf8);
 480         }
 481
 482         g_free(path);
 483         return 0;
 484 }
 485
 486 static void
 487 screen_playlist_init(WINDOW *w, int cols, int rows)
 488 {
 489         lw = list_window_init(w, cols, rows);
 490 }
 491
 492 static gboolean
 493 timer_hide_cursor(gpointer data)
 494 {
 495         struct mpdclient *c = data;
 496
 497         assert(options.hide_cursor > 0);
 498         assert(timer_hide_cursor_id != 0);
 499
 500         timer_hide_cursor_id = 0;
 501
 502         /* hide the cursor when mpd is playing and the user is inactive */
 503
 504         if (c->status != NULL &&
 505             mpd_status_get_state(c->status) == MPD_STATE_PLAY) {
 506                 lw->hide_cursor = true;
 507                 playlist_repaint();
 508         } else
 509                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 510                                                      timer_hide_cursor, c);
 511
 512         return FALSE;
 513 }
 514
 515 static void
 516 screen_playlist_open(struct mpdclient *c)
 517 {
 518         playlist = &c->playlist;
 519
 520         assert(timer_hide_cursor_id == 0);
 521         if (options.hide_cursor > 0) {
 522                 lw->hide_cursor = false;
 523                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 524                                                      timer_hide_cursor, c);
 525         }
 526
 527         playlist_restore_selection();
 528 }
 529
 530 static void
 531 screen_playlist_close(void)
 532 {
 533         if (timer_hide_cursor_id != 0) {
 534                 g_source_remove(timer_hide_cursor_id);
 535                 timer_hide_cursor_id = 0;
 536         }
 537 }
 538
 539 static void
 540 screen_playlist_resize(int cols, int rows)
 541 {
 542         lw->cols = cols;
 543         lw->rows = rows;
 544 }
 545
 546
 547 static void
 548 screen_playlist_exit(void)
 549 {
 550         list_window_free(lw);
 551 }
 552
 553 static const char *
 554 screen_playlist_title(char *str, size_t size)
 555 {
 556         if (options.host == NULL)
 557                 return _("Playlist");
 558
 559         g_snprintf(str, size, _("Playlist on %s"), options.host);
 560         return str;
 561 }
 562
 563 static void
 564 screen_playlist_paint(void)
 565 {
 566         list_window_paint(lw, list_callback, NULL);
 567 }
 568
 569 static void
 570 screen_playlist_update(struct mpdclient *c)
 571 {
 572         static int prev_song_id = -1;
 573
 574         if (c->events & MPD_IDLE_PLAYLIST)
 575                 playlist_restore_selection();
 576
 577         current_song_id = c->status != NULL &&
 578                 (mpd_status_get_state(c->status) == MPD_STATE_PLAY ||
 579                  mpd_status_get_state(c->status) == MPD_STATE_PAUSE)
 580                 ? (int)mpd_status_get_song_id(c->status) : -1;
 581
 582         if (current_song_id != prev_song_id) {
 583                 prev_song_id = current_song_id;
 584
 585                 /* center the cursor */
 586                 if (options.auto_center && current_song_id != -1 && ! lw->range_selection)
 587                         center_playing_item(c, false);
 588
 589                 playlist_repaint();
 590         } else if (c->events & MPD_IDLE_PLAYLIST) {
 591                 /* the playlist has changed, we must paint the new
 592                    version */
 593                 playlist_repaint();
 594         }
 595 }
 596
 597 #ifdef HAVE_GETMOUSE
 598 static bool
 599 handle_mouse_event(struct mpdclient *c)
 600 {
 601         int row;
 602         unsigned selected;
 603         unsigned long bstate;
 604
 605         if (screen_get_mouse_event(c, &bstate, &row) ||
 606             list_window_mouse(lw, playlist_length(playlist), bstate, row)) {
 607                 playlist_repaint();
 608                 return true;
 609         }
 610
 611         if (bstate & BUTTON1_DOUBLE_CLICKED) {
 612                 /* stop */
 613                 screen_cmd(c, CMD_STOP);
 614                 return true;
 615         }
 616
 617         selected = lw->start + row;
 618
 619         if (bstate & BUTTON1_CLICKED) {
 620                 /* play */
 621                 if (lw->start + row < playlist_length(playlist))
 622                         mpdclient_cmd_play(c, lw->start + row);
 623         } else if (bstate & BUTTON3_CLICKED) {
 624                 /* delete */
 625                 if (selected == lw->selected)
 626                         mpdclient_cmd_delete(c, lw->selected);
 627         }
 628
 629         lw->selected = selected;
 630         list_window_check_selected(lw, playlist_length(playlist));
 631         playlist_save_selection();
 632         playlist_repaint();
 633
 634         return true;
 635 }
 636 #endif
 637
 638 static bool
 639 screen_playlist_cmd(struct mpdclient *c, command_t cmd)
 640 {
 641         static command_t cached_cmd = CMD_NONE;
 642         command_t prev_cmd = cached_cmd;
 643         cached_cmd = cmd;
 644
 645         lw->hide_cursor = false;
 646
 647         if (options.hide_cursor > 0) {
 648                 if (timer_hide_cursor_id != 0)
 649                         g_source_remove(timer_hide_cursor_id);
 650                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 651                                                      timer_hide_cursor, c);
 652         }
 653
 654         if (list_window_cmd(lw, playlist_length(&c->playlist), cmd)) {
 655                 playlist_save_selection();
 656                 playlist_repaint();
 657                 return true;
 658         }
 659
 660         switch(cmd) {
 661         case CMD_SCREEN_UPDATE:
 662                 center_playing_item(c, prev_cmd == CMD_SCREEN_UPDATE);
 663                 playlist_repaint();
 664                 return false;
 665         case CMD_SELECT_PLAYING:
 666                 list_window_set_selected(lw, playlist_get_index(&c->playlist,
 667                                                                 c->song));
 668                 playlist_save_selection();
 669                 return true;
 670
 671         case CMD_LIST_FIND:
 672         case CMD_LIST_RFIND:
 673         case CMD_LIST_FIND_NEXT:
 674         case CMD_LIST_RFIND_NEXT:
 675                 screen_find(lw, playlist_length(&c->playlist),
 676                             cmd, list_callback, NULL);
 677                 playlist_save_selection();
 678                 playlist_repaint();
 679                 return true;
 680         case CMD_LIST_JUMP:
 681                 screen_jump(lw, list_callback, NULL);
 682                 playlist_save_selection();
 683                 playlist_repaint();
 684                 return true;
 685
 686 #ifdef HAVE_GETMOUSE
 687         case CMD_MOUSE_EVENT:
 688                 return handle_mouse_event(c);
 689 #endif
 690
 691 #ifdef ENABLE_SONG_SCREEN
 692         case CMD_SCREEN_SONG:
 693                 if (playlist_selected_song()) {
 694                         screen_song_switch(c, playlist_selected_song());
 695                         return true;
 696                 }
 697
 698                 break;
 699 #endif
 700
 701 #ifdef ENABLE_LYRICS_SCREEN
 702         case CMD_SCREEN_LYRICS:
 703                 if (lw->selected < playlist_length(&c->playlist)) {
 704                         struct mpd_song *selected = playlist_get(&c->playlist, lw->selected);
 705                         bool follow = false;
 706
 707                         if (c->song && selected &&
 708                             !strcmp(mpd_song_get_uri(selected),
 709                                     mpd_song_get_uri(c->song)))
 710                                 follow = true;
 711
 712                         screen_lyrics_switch(c, selected, follow);
 713                         return true;
 714                 }
 715
 716                 break;
 717 #endif
 718         case CMD_SCREEN_SWAP:
 719                 screen_swap(c, playlist_get(&c->playlist, lw->selected));
 720                 return true;
 721
 722         default:
 723                 break;
 724         }
 725
 726         if (!mpdclient_is_connected(c))
 727                 return false;
 728
 729         switch(cmd) {
 730         case CMD_PLAY:
 731                 mpdclient_cmd_play(c, lw->selected);
 732                 return true;
 733
 734         case CMD_DELETE:
 735                 if (lw->range_selection) {
 736                         mpdclient_cmd_delete_range(c, lw->selected_start,
 737                                                    lw->selected_end + 1);
 738                 } else {
 739                         mpdclient_cmd_delete(c, lw->selected);
 740                 }
 741
 742                 lw->selected = lw->selected_end = lw->selected_start;
 743                 lw->range_selection = false;
 744                 return true;
 745
 746         case CMD_SAVE_PLAYLIST:
 747                 playlist_save(c, NULL, NULL);
 748                 return true;
 749
 750         case CMD_ADD:
 751                 handle_add_to_playlist(c);
 752                 return true;
 753
 754         case CMD_SHUFFLE:
 755         {
 756                 if(!lw->range_selection)
 757                         /* No range selection, shuffle all list. */
 758                         break;
 759
 760                 if (mpd_run_shuffle_range(c->connection, lw->selected_start,
 761                                           lw->selected_end + 1))
 762                         screen_status_message(_("Shuffled playlist"));
 763                 else
 764                         mpdclient_handle_error(c);
 765                 return true;
 766         }
 767
 768         case CMD_LIST_MOVE_UP:
 769                 if(lw->selected_start == 0)
 770                         return false;
 771                 if(lw->range_selection)
 772                 {
 773                         unsigned i = lw->selected_start;
 774                         unsigned last_selected = lw->selected;
 775                         for(; i <= lw->selected_end; ++i)
 776                                 mpdclient_cmd_move(c, i, i-1);
 777                         lw->selected_start--;
 778                         lw->selected_end--;
 779                         lw->selected = last_selected - 1;
 780                         lw->range_base--;
 781                 }
 782                 else
 783                 {
 784                         mpdclient_cmd_move(c, lw->selected, lw->selected-1);
 785                         lw->selected--;
 786                         lw->selected_start--;
 787                         lw->selected_end--;
 788                 }
 789
 790                 playlist_save_selection();
 791                 return true;
 792
 793         case CMD_LIST_MOVE_DOWN:
 794                 if(lw->selected_end+1 >= playlist_length(&c->playlist))
 795                         return false;
 796                 if(lw->range_selection)
 797                 {
 798                         int i = lw->selected_end;
 799                         unsigned last_selected = lw->selected;
 800                         for(; i >= (int)lw->selected_start; --i)
 801                                 mpdclient_cmd_move(c, i, i+1);
 802                         lw->selected_start++;
 803                         lw->selected_end++;
 804                         lw->selected = last_selected + 1;
 805                         lw->range_base++;
 806                 }
 807                 else
 808                 {
 809                         mpdclient_cmd_move(c, lw->selected, lw->selected+1);
 810                         lw->selected++;
 811                         lw->selected_start++;
 812                         lw->selected_end++;
 813                 }
 814
 815                 playlist_save_selection();
 816                 return true;
 817
 818         case CMD_LOCATE:
 819                 if (playlist_selected_song()) {
 820                         screen_file_goto_song(c, playlist_selected_song());
 821                         return true;
 822                 }
 823
 824                 break;
 825
 826         default:
 827                 break;
 828         }
 829
 830         return false;
 831 }
 832
 833 const struct screen_functions screen_playlist = {
 834         .init = screen_playlist_init,
 835         .exit = screen_playlist_exit,
 836         .open = screen_playlist_open,
 837         .close = screen_playlist_close,
 838         .resize = screen_playlist_resize,
 839         .paint = screen_playlist_paint,
 840         .update = screen_playlist_update,
 841         .cmd = screen_playlist_cmd,
 842         .get_title = screen_playlist_title,
 843 };