src/screen_browser.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_browser.h"
  21 #include "screen_file.h"
  22 #include "screen_song.h"
  23 #include "screen_lyrics.h"
  24 #include "screen_message.h"
  25 #include "screen_find.h"
  26 #include "screen.h"
  27 #include "i18n.h"
  28 #include "options.h"
  29 #include "charset.h"
  30 #include "strfsong.h"
  31 #include "mpdclient.h"
  32 #include "filelist.h"
  33 #include "colors.h"
  34 #include "paint.h"
  35 #include "song_paint.h"
  36
  37 #include <mpd/client.h>
  38
  39 #include <string.h>
  40
  41 #define BUFSIZE 1024
  42
  43 #ifndef NCMPC_MINI
  44 #define HIGHLIGHT  (0x01)
  45 #endif
  46
  47 static const char playlist_format[] = "*%s*";
  48
  49 #ifndef NCMPC_MINI
  50
  51 /* sync highlight flags with playlist */
  52 void
  53 screen_browser_sync_highlights(struct filelist *fl,
  54                                const struct mpdclient_playlist *playlist)
  55 {
  56         guint i;
  57
  58         for (i = 0; i < filelist_length(fl); ++i) {
  59                 struct filelist_entry *entry = filelist_get(fl, i);
  60                 const struct mpd_entity *entity = entry->entity;
  61
  62                 if (entity != NULL && mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
  63                         const struct mpd_song *song =
  64                                 mpd_entity_get_song(entity);
  65
  66                         if (playlist_get_index_from_same_song(playlist,
  67                                                               song) >= 0)
  68                                 entry->flags |= HIGHLIGHT;
  69                         else
  70                                 entry->flags &= ~HIGHLIGHT;
  71                 }
  72         }
  73 }
  74
  75 #endif
  76
  77 /* list_window callback */
  78 static const char *
  79 browser_lw_callback(unsigned idx, void *data)
  80 {
  81         const struct filelist *fl = (const struct filelist *) data;
  82         static char buf[BUFSIZE];
  83         const struct filelist_entry *entry;
  84         const struct mpd_entity *entity;
  85
  86         assert(fl != NULL);
  87         assert(idx < filelist_length(fl));
  88
  89         entry = filelist_get(fl, idx);
  90         assert(entry != NULL);
  91
  92         entity = entry->entity;
  93
  94         if( entity == NULL )
  95                 return "..";
  96
  97         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_DIRECTORY) {
  98                 const struct mpd_directory *dir =
  99                         mpd_entity_get_directory(entity);
 100                 char *directory = utf8_to_locale(g_basename(mpd_directory_get_path(dir)));
 101                 g_strlcpy(buf, directory, sizeof(buf));
 102                 return buf;
 103         } else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
 104                 const struct mpd_song *song = mpd_entity_get_song(entity);
 105
 106                 strfsong(buf, BUFSIZE, options.list_format, song);
 107                 return buf;
 108         } else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST) {
 109                 const struct mpd_playlist *playlist =
 110                         mpd_entity_get_playlist(entity);
 111                 char *filename = utf8_to_locale(g_basename(mpd_playlist_get_path(playlist)));
 112
 113                 g_snprintf(buf, BUFSIZE, playlist_format, filename);
 114                 g_free(filename);
 115                 return buf;
 116         }
 117
 118         return "Error: Unknown entry!";
 119 }
 120
 121 static bool
 122 load_playlist(struct mpdclient *c, const struct mpd_playlist *playlist)
 123 {
 124         struct mpd_connection *connection = mpdclient_get_connection(c);
 125
 126         if (connection == NULL)
 127                 return false;
 128
 129         if (mpd_run_load(connection, mpd_playlist_get_path(playlist))) {
 130                 char *filename = utf8_to_locale(mpd_playlist_get_path(playlist));
 131                 screen_status_printf(_("Loading playlist %s..."),
 132                                      g_basename(filename));
 133                 g_free(filename);
 134
 135                 c->events |= MPD_IDLE_QUEUE;
 136         } else
 137                 mpdclient_handle_error(c);
 138
 139         return true;
 140 }
 141
 142 static bool
 143 enqueue_and_play(struct mpdclient *c, struct filelist_entry *entry)
 144 {
 145         struct mpd_connection *connection = mpdclient_get_connection(c);
 146         const struct mpd_song *song = mpd_entity_get_song(entry->entity);
 147         int id;
 148
 149 #ifndef NCMPC_MINI
 150         if (!(entry->flags & HIGHLIGHT))
 151                 id = -1;
 152         else
 153 #endif
 154                 id = playlist_get_id_from_same_song(&c->playlist, song);
 155
 156         if (id < 0) {
 157                 char buf[BUFSIZE];
 158
 159                 id = mpd_run_add_id(connection, mpd_song_get_uri(song));
 160                 if (id < 0) {
 161                         mpdclient_handle_error(c);
 162                         return false;
 163                 }
 164
 165 #ifndef NCMPC_MINI
 166                 entry->flags |= HIGHLIGHT;
 167 #endif
 168                 strfsong(buf, BUFSIZE, options.list_format, song);
 169                 screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 170         }
 171
 172         if (!mpd_run_play_id(connection, id)) {
 173                 mpdclient_handle_error(c);
 174                 return false;
 175         }
 176
 177         return true;
 178 }
 179
 180 struct filelist_entry *
 181 browser_get_selected_entry(const struct screen_browser *browser)
 182 {
 183         struct list_window_range range;
 184
 185         list_window_get_range(browser->lw, &range);
 186
 187         if (browser->filelist == NULL ||
 188             range.end <= range.start ||
 189             range.end > range.start + 1 ||
 190             range.start >= filelist_length(browser->filelist))
 191                 return NULL;
 192
 193         return filelist_get(browser->filelist, range.start);
 194 }
 195
 196 static const struct mpd_entity *
 197 browser_get_selected_entity(const struct screen_browser *browser)
 198 {
 199         const struct filelist_entry *entry = browser_get_selected_entry(browser);
 200
 201         return entry != NULL
 202                 ? entry->entity
 203                 : NULL;
 204 }
 205
 206 static const struct mpd_song *
 207 browser_get_selected_song(const struct screen_browser *browser)
 208 {
 209         const struct mpd_entity *entity = browser_get_selected_entity(browser);
 210
 211         return entity != NULL &&
 212                 mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG
 213                 ? mpd_entity_get_song(entity)
 214                 : NULL;
 215 }
 216
 217 static struct filelist_entry *
 218 browser_get_index(const struct screen_browser *browser, unsigned i)
 219 {
 220         if (browser->filelist == NULL ||
 221             i >= filelist_length(browser->filelist))
 222                 return NULL;
 223
 224         return filelist_get(browser->filelist, i);
 225 }
 226
 227 static bool
 228 browser_handle_enter(struct screen_browser *browser, struct mpdclient *c)
 229 {
 230         struct filelist_entry *entry = browser_get_selected_entry(browser);
 231         struct mpd_entity *entity;
 232
 233         if (entry == NULL)
 234                 return false;
 235
 236         entity = entry->entity;
 237         if (entity == NULL)
 238                 return false;
 239
 240         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST)
 241                 return load_playlist(c, mpd_entity_get_playlist(entity));
 242         else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG)
 243                 return enqueue_and_play(c, entry);
 244         return false;
 245 }
 246
 247 static bool
 248 browser_select_entry(struct mpdclient *c, struct filelist_entry *entry,
 249                      G_GNUC_UNUSED gboolean toggle)
 250 {
 251         assert(entry != NULL);
 252         assert(entry->entity != NULL);
 253
 254         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_PLAYLIST)
 255                 return load_playlist(c, mpd_entity_get_playlist(entry->entity));
 256
 257         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_DIRECTORY) {
 258                 const struct mpd_directory *dir =
 259                         mpd_entity_get_directory(entry->entity);
 260
 261                 if (mpdclient_cmd_add_path(c, mpd_directory_get_path(dir))) {
 262                         char *tmp = utf8_to_locale(mpd_directory_get_path(dir));
 263
 264                         screen_status_printf(_("Adding \'%s\' to playlist"), tmp);
 265                         g_free(tmp);
 266                 }
 267
 268                 return true;
 269         }
 270
 271         if (mpd_entity_get_type(entry->entity) != MPD_ENTITY_TYPE_SONG)
 272                 return false;
 273
 274 #ifndef NCMPC_MINI
 275         if (!toggle || (entry->flags & HIGHLIGHT) == 0)
 276 #endif
 277         {
 278                 const struct mpd_song *song =
 279                         mpd_entity_get_song(entry->entity);
 280
 281 #ifndef NCMPC_MINI
 282                 entry->flags |= HIGHLIGHT;
 283 #endif
 284
 285                 if (mpdclient_cmd_add(c, song)) {
 286                         char buf[BUFSIZE];
 287
 288                         strfsong(buf, BUFSIZE, options.list_format, song);
 289                         screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 290                 }
 291 #ifndef NCMPC_MINI
 292         } else {
 293                 /* remove song from playlist */
 294                 const struct mpd_song *song =
 295                         mpd_entity_get_song(entry->entity);
 296                 int idx;
 297
 298                 entry->flags &= ~HIGHLIGHT;
 299
 300                 while ((idx = playlist_get_index_from_same_song(&c->playlist,
 301                                                                 song)) >= 0)
 302                         mpdclient_cmd_delete(c, idx);
 303 #endif
 304         }
 305
 306         return true;
 307 }
 308
 309 static bool
 310 browser_handle_select(struct screen_browser *browser, struct mpdclient *c)
 311 {
 312         struct list_window_range range;
 313         struct filelist_entry *entry;
 314         bool success;
 315
 316         list_window_get_range(browser->lw, &range);
 317         for (unsigned i = range.start; i < range.end; ++i) {
 318                 entry = browser_get_index(browser, i);
 319
 320                 if (entry != NULL && entry->entity != NULL)
 321                         success = browser_select_entry(c, entry, TRUE);
 322         }
 323
 324         return range.end == range.start + 1 && success;
 325 }
 326
 327 static bool
 328 browser_handle_add(struct screen_browser *browser, struct mpdclient *c)
 329 {
 330         struct list_window_range range;
 331         struct filelist_entry *entry;
 332         bool success;
 333
 334         list_window_get_range(browser->lw, &range);
 335         for (unsigned i = range.start; i < range.end; ++i) {
 336                 entry = browser_get_index(browser, i);
 337
 338                 if (entry != NULL && entry->entity != NULL)
 339                         success = browser_select_entry(c, entry, FALSE);
 340         }
 341
 342         return range.end == range.start + 1 && success;
 343 }
 344
 345 static void
 346 browser_handle_select_all(struct screen_browser *browser, struct mpdclient *c)
 347 {
 348         guint i;
 349
 350         if (browser->filelist == NULL)
 351                 return;
 352
 353         for (i = 0; i < filelist_length(browser->filelist); ++i) {
 354                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 355
 356                 if (entry != NULL && entry->entity != NULL)
 357                         browser_select_entry(c, entry, FALSE);
 358         }
 359 }
 360
 361 #ifdef HAVE_GETMOUSE
 362 static int
 363 browser_handle_mouse_event(struct screen_browser *browser, struct mpdclient *c)
 364 {
 365         int row;
 366         unsigned prev_selected = browser->lw->selected;
 367         unsigned long bstate;
 368
 369         if (screen_get_mouse_event(c, &bstate, &row) ||
 370             list_window_mouse(browser->lw, bstate, row))
 371                 return 1;
 372
 373         list_window_set_cursor(browser->lw, browser->lw->start + row);
 374
 375         if( bstate & BUTTON1_CLICKED ) {
 376                 if (prev_selected == browser->lw->selected)
 377                         browser_handle_enter(browser, c);
 378         } else if (bstate & BUTTON3_CLICKED) {
 379                 if (prev_selected == browser->lw->selected)
 380                         browser_handle_select(browser, c);
 381         }
 382
 383         return 1;
 384 }
 385 #endif
 386
 387 static void
 388 screen_browser_paint_callback(WINDOW *w, unsigned i, unsigned y,
 389                               unsigned width, bool selected, void *data);
 390
 391 bool
 392 browser_cmd(struct screen_browser *browser,
 393             struct mpdclient *c, command_t cmd)
 394 {
 395         const struct mpd_song *song;
 396
 397         if (browser->filelist == NULL)
 398                 return false;
 399
 400         if (list_window_cmd(browser->lw, cmd))
 401                 return true;
 402
 403         switch (cmd) {
 404         case CMD_LIST_FIND:
 405         case CMD_LIST_RFIND:
 406         case CMD_LIST_FIND_NEXT:
 407         case CMD_LIST_RFIND_NEXT:
 408                 screen_find(browser->lw, cmd, browser_lw_callback,
 409                             browser->filelist);
 410                 return true;
 411         case CMD_LIST_JUMP:
 412                 screen_jump(browser->lw, browser_lw_callback,
 413                             screen_browser_paint_callback, browser->filelist);
 414                 return true;
 415
 416 #ifdef HAVE_GETMOUSE
 417         case CMD_MOUSE_EVENT:
 418                 browser_handle_mouse_event(browser, c);
 419                 return true;
 420 #endif
 421
 422 #ifdef ENABLE_SONG_SCREEN
 423         case CMD_SCREEN_SONG:
 424                 song = browser_get_selected_song(browser);
 425                 if (song == NULL)
 426                         return false;
 427
 428                 screen_song_switch(c, song);
 429                 return true;
 430 #endif
 431
 432 #ifdef ENABLE_LYRICS_SCREEN
 433         case CMD_SCREEN_LYRICS:
 434                 song = browser_get_selected_song(browser);
 435                 if (song == NULL)
 436                         return false;
 437
 438                 screen_lyrics_switch(c, song, false);
 439                 return true;
 440 #endif
 441         case CMD_SCREEN_SWAP:
 442                 screen_swap(c, browser_get_selected_song(browser));
 443                 return true;
 444
 445         default:
 446                 break;
 447         }
 448
 449         if (!mpdclient_is_connected(c))
 450                 return false;
 451
 452         switch (cmd) {
 453         case CMD_PLAY:
 454                 browser_handle_enter(browser, c);
 455                 return true;
 456
 457         case CMD_SELECT:
 458                 if (browser_handle_select(browser, c))
 459                         list_window_cmd(browser->lw, CMD_LIST_NEXT);
 460                 return true;
 461
 462         case CMD_ADD:
 463                 if (browser_handle_add(browser, c))
 464                         list_window_cmd(browser->lw, CMD_LIST_NEXT);
 465                 return true;
 466
 467         case CMD_SELECT_ALL:
 468                 browser_handle_select_all(browser, c);
 469                 return true;
 470
 471         case CMD_LOCATE:
 472                 song = browser_get_selected_song(browser);
 473                 if (song == NULL)
 474                         return false;
 475
 476                 screen_file_goto_song(c, song);
 477                 return true;
 478
 479         default:
 480                 break;
 481         }
 482
 483         return false;
 484 }
 485
 486 static void
 487 screen_browser_paint_directory(WINDOW *w, unsigned width,
 488                                bool selected, const char *name)
 489 {
 490         row_color(w, COLOR_DIRECTORY, selected);
 491
 492         waddch(w, '[');
 493         waddstr(w, name);
 494         waddch(w, ']');
 495
 496         /* erase the unused space after the text */
 497         row_clear_to_eol(w, width, selected);
 498 }
 499
 500 static void
 501 screen_browser_paint_playlist(WINDOW *w, unsigned width,
 502                               bool selected, const char *name)
 503 {
 504         row_paint_text(w, width, COLOR_PLAYLIST, selected, name);
 505 }
 506
 507 static void
 508 screen_browser_paint_callback(WINDOW *w, unsigned i,
 509                               unsigned y, unsigned width,
 510                               bool selected, void *data)
 511 {
 512         const struct filelist *fl = (const struct filelist *) data;
 513         const struct filelist_entry *entry;
 514         const struct mpd_entity *entity;
 515         bool highlight;
 516         const struct mpd_directory *directory;
 517         const struct mpd_playlist *playlist;
 518         char *p;
 519
 520         assert(fl != NULL);
 521         assert(i < filelist_length(fl));
 522
 523         entry = filelist_get(fl, i);
 524         assert(entry != NULL);
 525
 526         entity = entry->entity;
 527         if (entity == NULL) {
 528                 screen_browser_paint_directory(w, width, selected, "..");
 529                 return;
 530         }
 531
 532 #ifndef NCMPC_MINI
 533         highlight = (entry->flags & HIGHLIGHT) != 0;
 534 #else
 535         highlight = false;
 536 #endif
 537
 538         if (highlight)
 539                 colors_use(w, COLOR_LIST_BOLD);
 540         else
 541                 colors_use(w, COLOR_LIST);
 542
 543         switch (mpd_entity_get_type(entity)) {
 544         case MPD_ENTITY_TYPE_DIRECTORY:
 545                 directory = mpd_entity_get_directory(entity);
 546                 p = utf8_to_locale(g_basename(mpd_directory_get_path(directory)));
 547                 screen_browser_paint_directory(w, width, selected, p);
 548                 g_free(p);
 549                 break;
 550
 551         case MPD_ENTITY_TYPE_SONG:
 552                 paint_song_row(w, y, width, selected, highlight,
 553                                mpd_entity_get_song(entity));
 554                 break;
 555
 556         case MPD_ENTITY_TYPE_PLAYLIST:
 557                 playlist = mpd_entity_get_playlist(entity);
 558                 p = utf8_to_locale(g_basename(mpd_playlist_get_path(playlist)));
 559                 screen_browser_paint_playlist(w, width, selected, p);
 560                 g_free(p);
 561                 break;
 562
 563         default:
 564                 waddstr(w, "<unknown>");
 565         }
 566
 567         whline(w, ' ', width);
 568
 569         if (selected)
 570                 wattroff(w, A_REVERSE);
 571 }
 572
 573 void
 574 screen_browser_paint(const struct screen_browser *browser)
 575 {
 576         list_window_paint2(browser->lw, screen_browser_paint_callback,
 577                            browser->filelist);
 578 }