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