src/screen_play.c

   1 /*
   2  * (c) 2004 by Kalle Wallin <kaw@linux.se>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  *
  17  */
  18
  19 #include "config.h"
  20 #include "i18n.h"
  21 #include "charset.h"
  22 #include "options.h"
  23 #include "support.h"
  24 #include "mpdclient.h"
  25 #include "utils.h"
  26 #include "strfsong.h"
  27 #include "wreadln.h"
  28 #include "command.h"
  29 #include "colors.h"
  30 #include "screen.h"
  31 #include "screen_utils.h"
  32 #include "screen_play.h"
  33
  34 #include <ctype.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <time.h>
  38 #include <glib.h>
  39
  40 #define MAX_SONG_LENGTH 512
  41
  42 #ifndef NCMPC_MINI
  43 typedef struct
  44 {
  45         GList **list;
  46         GList **dir_list;
  47         mpdclient_t *c;
  48 } completion_callback_data_t;
  49 #endif
  50
  51 static struct mpdclient_playlist *playlist;
  52 static int current_song_id = -1;
  53 static list_window_t *lw = NULL;
  54 static guint timer_hide_cursor_id;
  55
  56 static void
  57 play_paint(void);
  58
  59 static void
  60 playlist_repaint(void)
  61 {
  62         play_paint();
  63         wrefresh(lw->w);
  64 }
  65
  66 static void
  67 playlist_repaint_if_active(void)
  68 {
  69         if (screen_is_visible(&screen_playlist))
  70                 playlist_repaint();
  71 }
  72
  73 static void
  74 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
  75 {
  76         switch (event) {
  77         case PLAYLIST_EVENT_DELETE:
  78                 break;
  79         case PLAYLIST_EVENT_MOVE:
  80                 lw->selected = *((int *) data);
  81                 if (lw->selected < lw->start)
  82                         lw->start--;
  83                 break;
  84         default:
  85                 break;
  86         }
  87
  88         list_window_check_selected(lw, c->playlist.list->len);
  89         playlist_repaint_if_active();
  90 }
  91
  92 static const char *
  93 list_callback(unsigned idx, int *highlight, G_GNUC_UNUSED void *data)
  94 {
  95         static char songname[MAX_SONG_LENGTH];
  96 #ifndef NCMPC_MINI
  97         static scroll_state_t st;
  98 #endif
  99         mpd_Song *song;
 100
 101         if (playlist == NULL || idx >= playlist_length(playlist))
 102                 return NULL;
 103
 104         song = playlist_get(playlist, idx);
 105         if (song->id == current_song_id)
 106                 *highlight = 1;
 107
 108         strfsong(songname, MAX_SONG_LENGTH, options.list_format, song);
 109
 110 #ifndef NCMPC_MINI
 111         if (options.scroll && (unsigned)song->pos == lw->selected &&
 112             utf8_width(songname) > (unsigned)COLS) {
 113                 static unsigned current_song;
 114                 char *tmp;
 115
 116                 if (current_song != lw->selected) {
 117                         st.offset = 0;
 118                         current_song = lw->selected;
 119                 }
 120
 121                 tmp = strscroll(songname, options.scroll_sep,
 122                                 MAX_SONG_LENGTH, &st);
 123                 g_strlcpy(songname, tmp, MAX_SONG_LENGTH);
 124                 g_free(tmp);
 125         } else if ((unsigned)song->pos == lw->selected)
 126                 st.offset = 0;
 127 #endif
 128
 129         return songname;
 130 }
 131
 132 static void
 133 center_playing_item(mpdclient_t *c)
 134 {
 135         unsigned length = c->playlist.list->len;
 136         unsigned offset = lw->selected - lw->start;
 137         int idx;
 138
 139         if (!c->song || length < lw->rows ||
 140             c->status == NULL || IS_STOPPED(c->status->state))
 141                 return;
 142
 143         /* try to center the song that are playing */
 144         idx = playlist_get_index(c, c->song);
 145         if (idx < 0)
 146                 return;
 147
 148         list_window_center(lw, length, idx);
 149
 150         /* make sure the cursor is in the window */
 151         lw->selected = lw->start+offset;
 152         list_window_check_selected(lw, length);
 153 }
 154
 155 #ifndef NCMPC_MINI
 156 static void
 157 save_pre_completion_cb(GCompletion *gcmp, G_GNUC_UNUSED gchar *line,
 158                        void *data)
 159 {
 160         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 161         GList **list = tmp->list;
 162         mpdclient_t *c = tmp->c;
 163
 164         if( *list == NULL ) {
 165                 /* create completion list */
 166                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_PLAYLIST);
 167                 g_completion_add_items(gcmp, *list);
 168         }
 169 }
 170
 171 static void
 172 save_post_completion_cb(G_GNUC_UNUSED GCompletion *gcmp,
 173                         G_GNUC_UNUSED gchar *line, GList *items,
 174                         G_GNUC_UNUSED void *data)
 175 {
 176         if (g_list_length(items) >= 1)
 177                 screen_display_completion_list(items);
 178 }
 179 #endif
 180
 181 int
 182 playlist_save(mpdclient_t *c, char *name, char *defaultname)
 183 {
 184         gchar *filename, *filename_utf8;
 185         gint error;
 186 #ifndef NCMPC_MINI
 187         GCompletion *gcmp;
 188         GList *list = NULL;
 189         completion_callback_data_t data;
 190 #endif
 191
 192 #ifdef NCMPC_MINI
 193         (void)defaultname;
 194 #endif
 195
 196 #ifndef NCMPC_MINI
 197         if (name == NULL) {
 198                 /* initialize completion support */
 199                 gcmp = g_completion_new(NULL);
 200                 g_completion_set_compare(gcmp, strncmp);
 201                 data.list = &list;
 202                 data.dir_list = NULL;
 203                 data.c = c;
 204                 wrln_completion_callback_data = &data;
 205                 wrln_pre_completion_callback = save_pre_completion_cb;
 206                 wrln_post_completion_callback = save_post_completion_cb;
 207
 208
 209                 /* query the user for a filename */
 210                 filename = screen_readln(screen.status_window.w,
 211                                          _("Save playlist as: "),
 212                                          defaultname,
 213                                          NULL,
 214                                          gcmp);
 215
 216                 /* destroy completion support */
 217                 wrln_completion_callback_data = NULL;
 218                 wrln_pre_completion_callback = NULL;
 219                 wrln_post_completion_callback = NULL;
 220                 g_completion_free(gcmp);
 221                 list = string_list_free(list);
 222                 if( filename )
 223                         filename=g_strstrip(filename);
 224         } else
 225 #endif
 226                         filename=g_strdup(name);
 227
 228         if (filename == NULL)
 229                 return -1;
 230
 231         /* send save command to mpd */
 232
 233         filename_utf8 = locale_to_utf8(filename);
 234         error = mpdclient_cmd_save_playlist(c, filename_utf8);
 235         g_free(filename_utf8);
 236
 237         if (error) {
 238                 gint code = GET_ACK_ERROR_CODE(error);
 239
 240                 if (code == MPD_ACK_ERROR_EXIST) {
 241                         char *buf;
 242                         int key;
 243
 244                         buf = g_strdup_printf(_("Replace %s [%s/%s] ? "),
 245                                               filename, YES, NO);
 246                         key = tolower(screen_getch(screen.status_window.w,
 247                                                    buf));
 248                         g_free(buf);
 249
 250                         if (key == YES[0]) {
 251                                 filename_utf8 = locale_to_utf8(filename);
 252                                 error = mpdclient_cmd_delete_playlist(c, filename_utf8);
 253                                 g_free(filename_utf8);
 254
 255                                 if (error) {
 256                                         g_free(filename);
 257                                         return -1;
 258                                 }
 259
 260                                 error = playlist_save(c, filename, NULL);
 261                                 g_free(filename);
 262                                 return error;
 263                         }
 264
 265                         screen_status_printf(_("Aborted"));
 266                 }
 267
 268                 g_free(filename);
 269                 return -1;
 270         }
 271
 272         /* success */
 273         screen_status_printf(_("Saved %s"), filename);
 274         g_free(filename);
 275         return 0;
 276 }
 277
 278 #ifndef NCMPC_MINI
 279 static void add_dir(GCompletion *gcmp, gchar *dir, GList **dir_list,
 280                     GList **list, mpdclient_t *c)
 281 {
 282         g_completion_remove_items(gcmp, *list);
 283         *list = string_list_remove(*list, dir);
 284         *list = gcmp_list_from_path(c, dir, *list, GCMP_TYPE_RFILE);
 285         g_completion_add_items(gcmp, *list);
 286         *dir_list = g_list_append(*dir_list, g_strdup(dir));
 287 }
 288
 289 static void add_pre_completion_cb(GCompletion *gcmp, gchar *line, void *data)
 290 {
 291         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 292         GList **dir_list = tmp->dir_list;
 293         GList **list = tmp->list;
 294         mpdclient_t *c = tmp->c;
 295
 296         if (*list == NULL) {
 297                 /* create initial list */
 298                 *list = gcmp_list_from_path(c, "", NULL, GCMP_TYPE_RFILE);
 299                 g_completion_add_items(gcmp, *list);
 300         } else if (line && line[0] && line[strlen(line)-1]=='/' &&
 301                    string_list_find(*dir_list, line) == NULL) {
 302                 /* add directory content to list */
 303                 add_dir(gcmp, line, dir_list, list, c);
 304         }
 305 }
 306
 307 static void add_post_completion_cb(GCompletion *gcmp, gchar *line,
 308                                    GList *items, void *data)
 309 {
 310         completion_callback_data_t *tmp = (completion_callback_data_t *)data;
 311         GList **dir_list = tmp->dir_list;
 312         GList **list = tmp->list;
 313         mpdclient_t *c = tmp->c;
 314
 315         if (g_list_length(items) >= 1)
 316                 screen_display_completion_list(items);
 317
 318         if (line && line[0] && line[strlen(line) - 1] == '/' &&
 319             string_list_find(*dir_list, line) == NULL) {
 320                 /* add directory content to list */
 321                 add_dir(gcmp, line, dir_list, list, c);
 322         }
 323 }
 324 #endif
 325
 326 static int
 327 handle_add_to_playlist(mpdclient_t *c)
 328 {
 329         gchar *path;
 330 #ifndef NCMPC_MINI
 331         GCompletion *gcmp;
 332         GList *list = NULL;
 333         GList *dir_list = NULL;
 334         completion_callback_data_t data;
 335
 336         /* initialize completion support */
 337         gcmp = g_completion_new(NULL);
 338         g_completion_set_compare(gcmp, strncmp);
 339         data.list = &list;
 340         data.dir_list = &dir_list;
 341         data.c = c;
 342         wrln_completion_callback_data = &data;
 343         wrln_pre_completion_callback = add_pre_completion_cb;
 344         wrln_post_completion_callback = add_post_completion_cb;
 345 #endif
 346
 347         /* get path */
 348         path = screen_readln(screen.status_window.w,
 349                              _("Add: "),
 350                              NULL,
 351                              NULL,
 352 #ifdef NCMPC_MINI
 353                              NULL
 354 #else
 355                              gcmp
 356 #endif
 357                              );
 358
 359         /* destroy completion data */
 360 #ifndef NCMPC_MINI
 361         wrln_completion_callback_data = NULL;
 362         wrln_pre_completion_callback = NULL;
 363         wrln_post_completion_callback = NULL;
 364         g_completion_free(gcmp);
 365         string_list_free(list);
 366         string_list_free(dir_list);
 367 #endif
 368
 369         /* add the path to the playlist */
 370         if (path != NULL) {
 371                 char *path_utf8 = locale_to_utf8(path);
 372                 mpdclient_cmd_add_path(c, path_utf8);
 373                 g_free(path_utf8);
 374         }
 375
 376         g_free(path);
 377         return 0;
 378 }
 379
 380 static void
 381 play_init(WINDOW *w, int cols, int rows)
 382 {
 383         lw = list_window_init(w, cols, rows);
 384 }
 385
 386 static gboolean
 387 timer_hide_cursor(gpointer data)
 388 {
 389         struct mpdclient *c = data;
 390
 391         assert(options.hide_cursor > 0);
 392         assert(timer_hide_cursor_id != 0);
 393
 394         timer_hide_cursor_id = 0;
 395
 396         /* hide the cursor when mpd is playing and the user is inactive */
 397
 398         if (c->status != NULL && c->status->state == MPD_STATUS_STATE_PLAY) {
 399                 lw->flags |= LW_HIDE_CURSOR;
 400                 playlist_repaint();
 401         } else
 402                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 403                                                      timer_hide_cursor, c);
 404
 405         return FALSE;
 406 }
 407
 408 static void
 409 play_open(mpdclient_t *c)
 410 {
 411         static gboolean install_cb = TRUE;
 412
 413         playlist = &c->playlist;
 414
 415         assert(timer_hide_cursor_id == 0);
 416         if (options.hide_cursor > 0) {
 417                 lw->flags &= ~LW_HIDE_CURSOR;
 418                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 419                                                      timer_hide_cursor, c);
 420         }
 421
 422         if (install_cb) {
 423                 mpdclient_install_playlist_callback(c, playlist_changed_callback);
 424                 install_cb = FALSE;
 425         }
 426 }
 427
 428 static void
 429 play_close(void)
 430 {
 431         if (timer_hide_cursor_id != 0) {
 432                 g_source_remove(timer_hide_cursor_id);
 433                 timer_hide_cursor_id = 0;
 434         }
 435 }
 436
 437 static void
 438 play_resize(int cols, int rows)
 439 {
 440         lw->cols = cols;
 441         lw->rows = rows;
 442 }
 443
 444
 445 static void
 446 play_exit(void)
 447 {
 448         list_window_free(lw);
 449 }
 450
 451 static const char *
 452 play_title(char *str, size_t size)
 453 {
 454         if( strcmp(options.host, "localhost") == 0 )
 455                 return _("Playlist");
 456
 457         g_snprintf(str, size, _("Playlist on %s"), options.host);
 458         return str;
 459 }
 460
 461 static void
 462 play_paint(void)
 463 {
 464         list_window_paint(lw, list_callback, NULL);
 465 }
 466
 467 static void
 468 play_update(mpdclient_t *c)
 469 {
 470         static int prev_song_id = -1;
 471
 472         current_song_id = c->song != NULL && c->status != NULL &&
 473                 !IS_STOPPED(c->status->state) ? c->song->id : -1;
 474
 475         if (current_song_id != prev_song_id
 476 #ifndef NCMPC_MINI
 477              || options.scroll
 478 #endif
 479             ) {
 480                 prev_song_id = current_song_id;
 481
 482                 /* center the cursor */
 483                 if (options.auto_center && current_song_id != -1)
 484                         center_playing_item(c);
 485
 486                 playlist_repaint();
 487         }
 488 }
 489
 490 #ifdef HAVE_GETMOUSE
 491 static bool
 492 handle_mouse_event(struct mpdclient *c)
 493 {
 494         int row;
 495         unsigned selected;
 496         unsigned long bstate;
 497
 498         if (screen_get_mouse_event(c, &bstate, &row) ||
 499             list_window_mouse(lw, playlist_length(playlist), bstate, row)) {
 500                 playlist_repaint();
 501                 return true;
 502         }
 503
 504         if (bstate & BUTTON1_DOUBLE_CLICKED) {
 505                 /* stop */
 506                 screen_cmd(c, CMD_STOP);
 507                 return true;
 508         }
 509
 510         selected = lw->start + row;
 511
 512         if (bstate & BUTTON1_CLICKED) {
 513                 /* play */
 514                 if (lw->start + row < playlist_length(playlist))
 515                         mpdclient_cmd_play(c, lw->start + row);
 516         } else if (bstate & BUTTON3_CLICKED) {
 517                 /* delete */
 518                 if (selected == lw->selected)
 519                         mpdclient_cmd_delete(c, lw->selected);
 520         }
 521
 522         lw->selected = selected;
 523         list_window_check_selected(lw, playlist_length(playlist));
 524         playlist_repaint();
 525
 526         return true;
 527 }
 528 #endif
 529
 530 static bool
 531 play_cmd(mpdclient_t *c, command_t cmd)
 532 {
 533         lw->flags &= ~LW_HIDE_CURSOR;
 534
 535         if (options.hide_cursor > 0) {
 536                 if (timer_hide_cursor_id != 0)
 537                         g_source_remove(timer_hide_cursor_id);
 538                 timer_hide_cursor_id = g_timeout_add(options.hide_cursor * 1000,
 539                                                      timer_hide_cursor, c);
 540         }
 541
 542         if (list_window_cmd(lw, playlist_length(&c->playlist), cmd)) {
 543                 playlist_repaint();
 544                 return true;
 545         }
 546
 547         switch(cmd) {
 548         case CMD_PLAY:
 549                 mpdclient_cmd_play(c, lw->selected);
 550                 return true;
 551         case CMD_DELETE:
 552                 mpdclient_cmd_delete(c, lw->selected);
 553                 return true;
 554         case CMD_SAVE_PLAYLIST:
 555                 playlist_save(c, NULL, NULL);
 556                 return true;
 557         case CMD_ADD:
 558                 handle_add_to_playlist(c);
 559                 return true;
 560         case CMD_SCREEN_UPDATE:
 561                 center_playing_item(c);
 562                 playlist_repaint();
 563                 return false;
 564
 565         case CMD_LIST_MOVE_UP:
 566                 mpdclient_cmd_move(c, lw->selected, lw->selected-1);
 567                 return true;
 568         case CMD_LIST_MOVE_DOWN:
 569                 mpdclient_cmd_move(c, lw->selected, lw->selected+1);
 570                 return true;
 571         case CMD_LIST_FIND:
 572         case CMD_LIST_RFIND:
 573         case CMD_LIST_FIND_NEXT:
 574         case CMD_LIST_RFIND_NEXT:
 575                 screen_find(lw, playlist_length(&c->playlist),
 576                             cmd, list_callback, NULL);
 577                 playlist_repaint();
 578                 return true;
 579
 580 #ifdef HAVE_GETMOUSE
 581         case CMD_MOUSE_EVENT:
 582                 return handle_mouse_event(c);
 583 #endif
 584
 585 #ifdef ENABLE_SONG_SCREEN
 586         case CMD_VIEW:
 587                 if (lw->selected < playlist_length(&c->playlist)) {
 588                         screen_song_switch(c, playlist_get(&c->playlist, lw->selected));
 589                         return true;
 590                 }
 591
 592                 break;
 593 #endif
 594
 595         case CMD_LOCATE:
 596                 if (lw->selected < playlist_length(&c->playlist)) {
 597                         screen_file_goto_song(c, playlist_get(&c->playlist, lw->selected));
 598                         return true;
 599                 }
 600
 601                 break;
 602
 603 #ifdef ENABLE_LYRICS_SCREEN
 604         case CMD_SCREEN_LYRICS:
 605                 if (lw->selected < playlist_length(&c->playlist)) {
 606                         screen_lyrics_switch(c, playlist_get(&c->playlist, lw->selected));
 607                         return true;
 608                 }
 609
 610                 break;
 611 #endif
 612
 613         default:
 614                 break;
 615         }
 616
 617         return false;
 618 }
 619
 620 const struct screen_functions screen_playlist = {
 621         .init = play_init,
 622         .exit = play_exit,
 623         .open = play_open,
 624         .close = play_close,
 625         .resize = play_resize,
 626         .paint = play_paint,
 627         .update = play_update,
 628         .cmd = play_cmd,
 629         .get_title = play_title,
 630 };