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