src/screen_browser.c

   1 /* ncmpc (Ncurses MPD Client)
   2  * (c) 2004-2017 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 "config.h"
  21 #include "screen_browser.h"
  22 #include "screen_file.h"
  23 #include "screen_song.h"
  24 #include "screen_lyrics.h"
  25 #include "screen_status.h"
  26 #include "screen_find.h"
  27 #include "screen.h"
  28 #include "i18n.h"
  29 #include "options.h"
  30 #include "charset.h"
  31 #include "strfsong.h"
  32 #include "mpdclient.h"
  33 #include "filelist.h"
  34 #include "colors.h"
  35 #include "paint.h"
  36 #include "song_paint.h"
  37
  38 #include <mpd/client.h>
  39
  40 #include <string.h>
  41
  42 #define BUFSIZE 1024
  43
  44 #ifndef NCMPC_MINI
  45 #define HIGHLIGHT  (0x01)
  46 #endif
  47
  48 #ifndef NCMPC_MINI
  49
  50 /* sync highlight flags with playlist */
  51 void
  52 screen_browser_sync_highlights(struct filelist *fl,
  53                                const struct mpdclient_playlist *playlist)
  54 {
  55         for (unsigned i = 0; i < filelist_length(fl); ++i) {
  56                 struct filelist_entry *entry = filelist_get(fl, i);
  57                 const struct mpd_entity *entity = entry->entity;
  58
  59                 if (entity != NULL && mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
  60                         const struct mpd_song *song =
  61                                 mpd_entity_get_song(entity);
  62
  63                         if (playlist_get_index_from_same_song(playlist,
  64                                                               song) >= 0)
  65                                 entry->flags |= HIGHLIGHT;
  66                         else
  67                                 entry->flags &= ~HIGHLIGHT;
  68                 }
  69         }
  70 }
  71
  72 #endif
  73
  74 /* list_window callback */
  75 static const char *
  76 browser_lw_callback(unsigned idx, void *data)
  77 {
  78         const struct filelist *fl = (const struct filelist *) data;
  79         static char buf[BUFSIZE];
  80
  81         assert(fl != NULL);
  82         assert(idx < filelist_length(fl));
  83
  84         const struct filelist_entry *entry = filelist_get(fl, idx);
  85         assert(entry != NULL);
  86
  87         const struct mpd_entity *entity = entry->entity;
  88
  89         if( entity == NULL )
  90                 return "..";
  91
  92         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_DIRECTORY) {
  93                 const struct mpd_directory *dir =
  94                         mpd_entity_get_directory(entity);
  95                 char *directory = utf8_to_locale(g_basename(mpd_directory_get_path(dir)));
  96                 g_strlcpy(buf, directory, sizeof(buf));
  97                 g_free(directory);
  98                 return buf;
  99         } else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
 100                 const struct mpd_song *song = mpd_entity_get_song(entity);
 101
 102                 strfsong(buf, BUFSIZE, options.list_format, song);
 103                 return buf;
 104         } else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST) {
 105                 const struct mpd_playlist *playlist =
 106                         mpd_entity_get_playlist(entity);
 107                 char *filename = utf8_to_locale(g_basename(mpd_playlist_get_path(playlist)));
 108
 109                 g_strlcpy(buf, filename, sizeof(buf));
 110                 g_free(filename);
 111                 return buf;
 112         }
 113
 114         return "Error: Unknown entry!";
 115 }
 116
 117 static bool
 118 load_playlist(struct mpdclient *c, const struct mpd_playlist *playlist)
 119 {
 120         struct mpd_connection *connection = mpdclient_get_connection(c);
 121
 122         if (connection == NULL)
 123                 return false;
 124
 125         if (mpd_run_load(connection, mpd_playlist_get_path(playlist))) {
 126                 char *filename = utf8_to_locale(mpd_playlist_get_path(playlist));
 127                 screen_status_printf(_("Loading playlist %s..."),
 128                                      g_basename(filename));
 129                 g_free(filename);
 130
 131                 c->events |= MPD_IDLE_QUEUE;
 132         } else
 133                 mpdclient_handle_error(c);
 134
 135         return true;
 136 }
 137
 138 static bool
 139 enqueue_and_play(struct mpdclient *c, struct filelist_entry *entry)
 140 {
 141         struct mpd_connection *connection = mpdclient_get_connection(c);
 142         if (connection == NULL)
 143                 return false;
 144
 145         const struct mpd_song *song = mpd_entity_get_song(entry->entity);
 146         int id;
 147
 148 #ifndef NCMPC_MINI
 149         if (!(entry->flags & HIGHLIGHT))
 150                 id = -1;
 151         else
 152 #endif
 153                 id = playlist_get_id_from_same_song(&c->playlist, song);
 154
 155         if (id < 0) {
 156                 char buf[BUFSIZE];
 157
 158                 id = mpd_run_add_id(connection, mpd_song_get_uri(song));
 159                 if (id < 0) {
 160                         mpdclient_handle_error(c);
 161                         return false;
 162                 }
 163
 164 #ifndef NCMPC_MINI
 165                 entry->flags |= HIGHLIGHT;
 166 #endif
 167                 strfsong(buf, BUFSIZE, options.list_format, song);
 168                 screen_status_printf(_("Adding \'%s\' to queue"), buf);
 169         }
 170
 171         if (!mpd_run_play_id(connection, id)) {
 172                 mpdclient_handle_error(c);
 173                 return false;
 174         }
 175
 176         return true;
 177 }
 178
 179 struct filelist_entry *
 180 browser_get_selected_entry(const struct screen_browser *browser)
 181 {
 182         struct list_window_range range;
 183
 184         list_window_get_range(browser->lw, &range);
 185
 186         if (browser->filelist == NULL ||
 187             range.end <= range.start ||
 188             range.end > range.start + 1 ||
 189             range.start >= filelist_length(browser->filelist))
 190                 return NULL;
 191
 192         return filelist_get(browser->filelist, range.start);
 193 }
 194
 195 static const struct mpd_entity *
 196 browser_get_selected_entity(const struct screen_browser *browser)
 197 {
 198         const struct filelist_entry *entry = browser_get_selected_entry(browser);
 199
 200         return entry != NULL
 201                 ? entry->entity
 202                 : NULL;
 203 }
 204
 205 static const struct mpd_song *
 206 browser_get_selected_song(const struct screen_browser *browser)
 207 {
 208         const struct mpd_entity *entity = browser_get_selected_entity(browser);
 209
 210         return entity != NULL &&
 211                 mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG
 212                 ? mpd_entity_get_song(entity)
 213                 : NULL;
 214 }
 215
 216 static struct filelist_entry *
 217 browser_get_index(const struct screen_browser *browser, unsigned i)
 218 {
 219         if (browser->filelist == NULL ||
 220             i >= filelist_length(browser->filelist))
 221                 return NULL;
 222
 223         return filelist_get(browser->filelist, i);
 224 }
 225
 226 static bool
 227 browser_handle_enter(struct screen_browser *browser, struct mpdclient *c)
 228 {
 229         struct filelist_entry *entry = browser_get_selected_entry(browser);
 230         if (entry == NULL)
 231                 return false;
 232
 233         struct mpd_entity *entity = entry->entity;
 234         if (entity == NULL)
 235                 return false;
 236
 237         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST)
 238                 return load_playlist(c, mpd_entity_get_playlist(entity));
 239         else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG)
 240                 return enqueue_and_play(c, entry);
 241         return false;
 242 }
 243
 244 static bool
 245 browser_select_entry(struct mpdclient *c, struct filelist_entry *entry,
 246                      gcc_unused gboolean toggle)
 247 {
 248         assert(entry != NULL);
 249         assert(entry->entity != NULL);
 250
 251         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_PLAYLIST)
 252                 return load_playlist(c, mpd_entity_get_playlist(entry->entity));
 253
 254         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_DIRECTORY) {
 255                 const struct mpd_directory *dir =
 256                         mpd_entity_get_directory(entry->entity);
 257
 258                 if (mpdclient_cmd_add_path(c, mpd_directory_get_path(dir))) {
 259                         char *tmp = utf8_to_locale(mpd_directory_get_path(dir));
 260
 261                         screen_status_printf(_("Adding \'%s\' to queue"), tmp);
 262                         g_free(tmp);
 263                 }
 264
 265                 return true;
 266         }
 267
 268         if (mpd_entity_get_type(entry->entity) != MPD_ENTITY_TYPE_SONG)
 269                 return false;
 270
 271 #ifndef NCMPC_MINI
 272         if (!toggle || (entry->flags & HIGHLIGHT) == 0)
 273 #endif
 274         {
 275                 const struct mpd_song *song =
 276                         mpd_entity_get_song(entry->entity);
 277
 278 #ifndef NCMPC_MINI
 279                 entry->flags |= HIGHLIGHT;
 280 #endif
 281
 282                 if (mpdclient_cmd_add(c, song)) {
 283                         char buf[BUFSIZE];
 284
 285                         strfsong(buf, BUFSIZE, options.list_format, song);
 286                         screen_status_printf(_("Adding \'%s\' to queue"), buf);
 287                 }
 288 #ifndef NCMPC_MINI
 289         } else {
 290                 /* remove song from playlist */
 291                 const struct mpd_song *song =
 292                         mpd_entity_get_song(entry->entity);
 293                 int idx;
 294
 295                 entry->flags &= ~HIGHLIGHT;
 296
 297                 while ((idx = playlist_get_index_from_same_song(&c->playlist,
 298                                                                 song)) >= 0)
 299                         mpdclient_cmd_delete(c, idx);
 300 #endif
 301         }
 302
 303         return true;
 304 }
 305
 306 static bool
 307 browser_handle_select(struct screen_browser *browser, struct mpdclient *c)
 308 {
 309         struct list_window_range range;
 310         bool success = false;
 311
 312         list_window_get_range(browser->lw, &range);
 313         for (unsigned i = range.start; i < range.end; ++i) {
 314                 struct filelist_entry *entry = browser_get_index(browser, i);
 315                 if (entry != NULL && entry->entity != NULL)
 316                         success = browser_select_entry(c, entry, TRUE);
 317         }
 318
 319         return range.end == range.start + 1 && success;
 320 }
 321
 322 static bool
 323 browser_handle_add(struct screen_browser *browser, struct mpdclient *c)
 324 {
 325         struct list_window_range range;
 326         bool success = false;
 327
 328         list_window_get_range(browser->lw, &range);
 329         for (unsigned i = range.start; i < range.end; ++i) {
 330                 struct filelist_entry *entry = browser_get_index(browser, i);
 331                 if (entry != NULL && entry->entity != NULL)
 332                         success = browser_select_entry(c, entry, FALSE) ||
 333                                 success;
 334         }
 335
 336         return range.end == range.start + 1 && success;
 337 }
 338
 339 static void
 340 browser_handle_select_all(struct screen_browser *browser, struct mpdclient *c)
 341 {
 342         if (browser->filelist == NULL)
 343                 return;
 344
 345         for (unsigned i = 0; i < filelist_length(browser->filelist); ++i) {
 346                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 347
 348                 if (entry != NULL && entry->entity != NULL)
 349                         browser_select_entry(c, entry, FALSE);
 350         }
 351 }
 352
 353 #ifdef HAVE_GETMOUSE
 354 static int
 355 browser_handle_mouse_event(struct screen_browser *browser, struct mpdclient *c)
 356 {
 357         int row;
 358         unsigned prev_selected = browser->lw->selected;
 359         unsigned long bstate;
 360
 361         if (screen_get_mouse_event(c, &bstate, &row) ||
 362             list_window_mouse(browser->lw, bstate, row))
 363                 return 1;
 364
 365         list_window_set_cursor(browser->lw, browser->lw->start + row);
 366
 367         if( bstate & BUTTON1_CLICKED ) {
 368                 if (prev_selected == browser->lw->selected)
 369                         browser_handle_enter(browser, c);
 370         } else if (bstate & BUTTON3_CLICKED) {
 371                 if (prev_selected == browser->lw->selected)
 372                         browser_handle_select(browser, c);
 373         }
 374
 375         return 1;
 376 }
 377 #endif
 378
 379 static void
 380 screen_browser_paint_callback(WINDOW *w, unsigned i, unsigned y,
 381                               unsigned width, bool selected, const void *data);
 382
 383 bool
 384 browser_cmd(struct screen_browser *browser,
 385             struct mpdclient *c, command_t cmd)
 386 {
 387         if (browser->filelist == NULL)
 388                 return false;
 389
 390         if (list_window_cmd(browser->lw, cmd))
 391                 return true;
 392
 393         switch (cmd) {
 394 #if defined(ENABLE_SONG_SCREEN) || defined(ENABLE_LYRICS_SCREEN)
 395                 const struct mpd_song *song;
 396 #endif
 397
 398         case CMD_LIST_FIND:
 399         case CMD_LIST_RFIND:
 400         case CMD_LIST_FIND_NEXT:
 401         case CMD_LIST_RFIND_NEXT:
 402                 screen_find(browser->lw, cmd, browser_lw_callback,
 403                             browser->filelist);
 404                 return true;
 405         case CMD_LIST_JUMP:
 406                 screen_jump(browser->lw,
 407                             browser_lw_callback, browser->filelist,
 408                             screen_browser_paint_callback, browser);
 409                 return true;
 410
 411 #ifdef HAVE_GETMOUSE
 412         case CMD_MOUSE_EVENT:
 413                 browser_handle_mouse_event(browser, c);
 414                 return true;
 415 #endif
 416
 417 #ifdef ENABLE_SONG_SCREEN
 418         case CMD_SCREEN_SONG:
 419                 song = browser_get_selected_song(browser);
 420                 if (song == NULL)
 421                         return false;
 422
 423                 screen_song_switch(c, song);
 424                 return true;
 425 #endif
 426
 427 #ifdef ENABLE_LYRICS_SCREEN
 428         case CMD_SCREEN_LYRICS:
 429                 song = browser_get_selected_song(browser);
 430                 if (song == NULL)
 431                         return false;
 432
 433                 screen_lyrics_switch(c, song, false);
 434                 return true;
 435 #endif
 436         case CMD_SCREEN_SWAP:
 437                 screen_swap(c, browser_get_selected_song(browser));
 438                 return true;
 439
 440         default:
 441                 break;
 442         }
 443
 444         if (!mpdclient_is_connected(c))
 445                 return false;
 446
 447         switch (cmd) {
 448                 const struct mpd_song *song;
 449
 450         case CMD_PLAY:
 451                 browser_handle_enter(browser, c);
 452                 return true;
 453
 454         case CMD_SELECT:
 455                 if (browser_handle_select(browser, c))
 456                         list_window_cmd(browser->lw, CMD_LIST_NEXT);
 457                 return true;
 458
 459         case CMD_ADD:
 460                 if (browser_handle_add(browser, c))
 461                         list_window_cmd(browser->lw, CMD_LIST_NEXT);
 462                 return true;
 463
 464         case CMD_SELECT_ALL:
 465                 browser_handle_select_all(browser, c);
 466                 return true;
 467
 468         case CMD_LOCATE:
 469                 song = browser_get_selected_song(browser);
 470                 if (song == NULL)
 471                         return false;
 472
 473                 screen_file_goto_song(c, song);
 474                 return true;
 475
 476         default:
 477                 break;
 478         }
 479
 480         return false;
 481 }
 482
 483 void
 484 screen_browser_paint_directory(WINDOW *w, unsigned width,
 485                                bool selected, const char *name)
 486 {
 487         row_color(w, COLOR_DIRECTORY, selected);
 488
 489         waddch(w, '[');
 490         waddstr(w, name);
 491         waddch(w, ']');
 492
 493         /* erase the unused space after the text */
 494         row_clear_to_eol(w, width, selected);
 495 }
 496
 497 static void
 498 screen_browser_paint_playlist(WINDOW *w, unsigned width,
 499                               bool selected, const char *name)
 500 {
 501         row_paint_text(w, width, COLOR_PLAYLIST, selected, name);
 502 }
 503
 504 static void
 505 screen_browser_paint_callback(WINDOW *w, unsigned i,
 506                               unsigned y, unsigned width,
 507                               bool selected, const void *data)
 508 {
 509         const struct screen_browser *browser = (const struct screen_browser *) data;
 510
 511         assert(browser != NULL);
 512         assert(browser->filelist != NULL);
 513         assert(i < filelist_length(browser->filelist));
 514
 515         const struct filelist_entry *entry = filelist_get(browser->filelist, i);
 516         assert(entry != NULL);
 517
 518         const struct mpd_entity *entity = entry->entity;
 519         if (entity == NULL) {
 520                 screen_browser_paint_directory(w, width, selected, "..");
 521                 return;
 522         }
 523
 524 #ifndef NCMPC_MINI
 525         const bool highlight = (entry->flags & HIGHLIGHT) != 0;
 526 #else
 527         const bool highlight = false;
 528 #endif
 529
 530         switch (mpd_entity_get_type(entity)) {
 531                 const struct mpd_directory *directory;
 532                 const struct mpd_playlist *playlist;
 533                 char *p;
 534
 535         case MPD_ENTITY_TYPE_DIRECTORY:
 536                 directory = mpd_entity_get_directory(entity);
 537                 p = utf8_to_locale(g_basename(mpd_directory_get_path(directory)));
 538                 screen_browser_paint_directory(w, width, selected, p);
 539                 g_free(p);
 540                 break;
 541
 542         case MPD_ENTITY_TYPE_SONG:
 543                 paint_song_row(w, y, width, selected, highlight,
 544                                mpd_entity_get_song(entity), NULL, browser->song_format);
 545                 break;
 546
 547         case MPD_ENTITY_TYPE_PLAYLIST:
 548                 playlist = mpd_entity_get_playlist(entity);
 549                 p = utf8_to_locale(g_basename(mpd_playlist_get_path(playlist)));
 550                 screen_browser_paint_playlist(w, width, selected, p);
 551                 g_free(p);
 552                 break;
 553
 554         default:
 555                 row_paint_text(w, width, highlight ? COLOR_LIST_BOLD : COLOR_LIST,
 556                                selected, "<unknown>");
 557         }
 558 }
 559
 560 void
 561 screen_browser_paint(const struct screen_browser *browser)
 562 {
 563         list_window_paint2(browser->lw, screen_browser_paint_callback,
 564                            browser);
 565 }