src/screen_browser.c

   1 /* ncmpc (Ncurses MPD Client)
   2  * (c) 2004-2010 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         guint i;
  56
  57         for (i = 0; i < filelist_length(fl); ++i) {
  58                 struct filelist_entry *entry = filelist_get(fl, i);
  59                 const struct mpd_entity *entity = entry->entity;
  60
  61                 if (entity != NULL && mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
  62                         const struct mpd_song *song =
  63                                 mpd_entity_get_song(entity);
  64
  65                         if (playlist_get_index_from_same_song(playlist,
  66                                                               song) >= 0)
  67                                 entry->flags |= HIGHLIGHT;
  68                         else
  69                                 entry->flags &= ~HIGHLIGHT;
  70                 }
  71         }
  72 }
  73
  74 #endif
  75
  76 /* list_window callback */
  77 static const char *
  78 browser_lw_callback(unsigned idx, void *data)
  79 {
  80         const struct filelist *fl = (const struct filelist *) data;
  81         static char buf[BUFSIZE];
  82         const struct filelist_entry *entry;
  83         const struct mpd_entity *entity;
  84
  85         assert(fl != NULL);
  86         assert(idx < filelist_length(fl));
  87
  88         entry = filelist_get(fl, idx);
  89         assert(entry != NULL);
  90
  91         entity = entry->entity;
  92
  93         if( entity == NULL )
  94                 return "..";
  95
  96         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_DIRECTORY) {
  97                 const struct mpd_directory *dir =
  98                         mpd_entity_get_directory(entity);
  99                 char *directory = utf8_to_locale(g_basename(mpd_directory_get_path(dir)));
 100                 g_strlcpy(buf, directory, sizeof(buf));
 101                 g_free(directory);
 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_strlcpy(buf, filename, sizeof(buf));
 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         if (connection == NULL)
 147                 return false;
 148
 149         const struct mpd_song *song = mpd_entity_get_song(entry->entity);
 150         int id;
 151
 152 #ifndef NCMPC_MINI
 153         if (!(entry->flags & HIGHLIGHT))
 154                 id = -1;
 155         else
 156 #endif
 157                 id = playlist_get_id_from_same_song(&c->playlist, song);
 158
 159         if (id < 0) {
 160                 char buf[BUFSIZE];
 161
 162                 id = mpd_run_add_id(connection, mpd_song_get_uri(song));
 163                 if (id < 0) {
 164                         mpdclient_handle_error(c);
 165                         return false;
 166                 }
 167
 168 #ifndef NCMPC_MINI
 169                 entry->flags |= HIGHLIGHT;
 170 #endif
 171                 strfsong(buf, BUFSIZE, options.list_format, song);
 172                 screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 173         }
 174
 175         if (!mpd_run_play_id(connection, id)) {
 176                 mpdclient_handle_error(c);
 177                 return false;
 178         }
 179
 180         return true;
 181 }
 182
 183 struct filelist_entry *
 184 browser_get_selected_entry(const struct screen_browser *browser)
 185 {
 186         struct list_window_range range;
 187
 188         list_window_get_range(browser->lw, &range);
 189
 190         if (browser->filelist == NULL ||
 191             range.end <= range.start ||
 192             range.end > range.start + 1 ||
 193             range.start >= filelist_length(browser->filelist))
 194                 return NULL;
 195
 196         return filelist_get(browser->filelist, range.start);
 197 }
 198
 199 static const struct mpd_entity *
 200 browser_get_selected_entity(const struct screen_browser *browser)
 201 {
 202         const struct filelist_entry *entry = browser_get_selected_entry(browser);
 203
 204         return entry != NULL
 205                 ? entry->entity
 206                 : NULL;
 207 }
 208
 209 static const struct mpd_song *
 210 browser_get_selected_song(const struct screen_browser *browser)
 211 {
 212         const struct mpd_entity *entity = browser_get_selected_entity(browser);
 213
 214         return entity != NULL &&
 215                 mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG
 216                 ? mpd_entity_get_song(entity)
 217                 : NULL;
 218 }
 219
 220 static struct filelist_entry *
 221 browser_get_index(const struct screen_browser *browser, unsigned i)
 222 {
 223         if (browser->filelist == NULL ||
 224             i >= filelist_length(browser->filelist))
 225                 return NULL;
 226
 227         return filelist_get(browser->filelist, i);
 228 }
 229
 230 static bool
 231 browser_handle_enter(struct screen_browser *browser, struct mpdclient *c)
 232 {
 233         struct filelist_entry *entry = browser_get_selected_entry(browser);
 234         struct mpd_entity *entity;
 235
 236         if (entry == NULL)
 237                 return false;
 238
 239         entity = entry->entity;
 240         if (entity == NULL)
 241                 return false;
 242
 243         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST)
 244                 return load_playlist(c, mpd_entity_get_playlist(entity));
 245         else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG)
 246                 return enqueue_and_play(c, entry);
 247         return false;
 248 }
 249
 250 static bool
 251 browser_select_entry(struct mpdclient *c, struct filelist_entry *entry,
 252                      G_GNUC_UNUSED gboolean toggle)
 253 {
 254         assert(entry != NULL);
 255         assert(entry->entity != NULL);
 256
 257         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_PLAYLIST)
 258                 return load_playlist(c, mpd_entity_get_playlist(entry->entity));
 259
 260         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_DIRECTORY) {
 261                 const struct mpd_directory *dir =
 262                         mpd_entity_get_directory(entry->entity);
 263
 264                 if (mpdclient_cmd_add_path(c, mpd_directory_get_path(dir))) {
 265                         char *tmp = utf8_to_locale(mpd_directory_get_path(dir));
 266
 267                         screen_status_printf(_("Adding \'%s\' to playlist"), tmp);
 268                         g_free(tmp);
 269                 }
 270
 271                 return true;
 272         }
 273
 274         if (mpd_entity_get_type(entry->entity) != MPD_ENTITY_TYPE_SONG)
 275                 return false;
 276
 277 #ifndef NCMPC_MINI
 278         if (!toggle || (entry->flags & HIGHLIGHT) == 0)
 279 #endif
 280         {
 281                 const struct mpd_song *song =
 282                         mpd_entity_get_song(entry->entity);
 283
 284 #ifndef NCMPC_MINI
 285                 entry->flags |= HIGHLIGHT;
 286 #endif
 287
 288                 if (mpdclient_cmd_add(c, song)) {
 289                         char buf[BUFSIZE];
 290
 291                         strfsong(buf, BUFSIZE, options.list_format, song);
 292                         screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 293                 }
 294 #ifndef NCMPC_MINI
 295         } else {
 296                 /* remove song from playlist */
 297                 const struct mpd_song *song =
 298                         mpd_entity_get_song(entry->entity);
 299                 int idx;
 300
 301                 entry->flags &= ~HIGHLIGHT;
 302
 303                 while ((idx = playlist_get_index_from_same_song(&c->playlist,
 304                                                                 song)) >= 0)
 305                         mpdclient_cmd_delete(c, idx);
 306 #endif
 307         }
 308
 309         return true;
 310 }
 311
 312 static bool
 313 browser_handle_select(struct screen_browser *browser, struct mpdclient *c)
 314 {
 315         struct list_window_range range;
 316         struct filelist_entry *entry;
 317         bool success = false;
 318
 319         list_window_get_range(browser->lw, &range);
 320         for (unsigned i = range.start; i < range.end; ++i) {
 321                 entry = browser_get_index(browser, i);
 322
 323                 if (entry != NULL && entry->entity != NULL)
 324                         success = browser_select_entry(c, entry, TRUE);
 325         }
 326
 327         return range.end == range.start + 1 && success;
 328 }
 329
 330 static bool
 331 browser_handle_add(struct screen_browser *browser, struct mpdclient *c)
 332 {
 333         struct list_window_range range;
 334         struct filelist_entry *entry;
 335         bool success = false;
 336
 337         list_window_get_range(browser->lw, &range);
 338         for (unsigned i = range.start; i < range.end; ++i) {
 339                 entry = browser_get_index(browser, i);
 340
 341                 if (entry != NULL && entry->entity != NULL)
 342                         success = browser_select_entry(c, entry, FALSE) ||
 343                                 success;
 344         }
 345
 346         return range.end == range.start + 1 && success;
 347 }
 348
 349 static void
 350 browser_handle_select_all(struct screen_browser *browser, struct mpdclient *c)
 351 {
 352         guint i;
 353
 354         if (browser->filelist == NULL)
 355                 return;
 356
 357         for (i = 0; i < filelist_length(browser->filelist); ++i) {
 358                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 359
 360                 if (entry != NULL && entry->entity != NULL)
 361                         browser_select_entry(c, entry, FALSE);
 362         }
 363 }
 364
 365 #ifdef HAVE_GETMOUSE
 366 static int
 367 browser_handle_mouse_event(struct screen_browser *browser, struct mpdclient *c)
 368 {
 369         int row;
 370         unsigned prev_selected = browser->lw->selected;
 371         unsigned long bstate;
 372
 373         if (screen_get_mouse_event(c, &bstate, &row) ||
 374             list_window_mouse(browser->lw, bstate, row))
 375                 return 1;
 376
 377         list_window_set_cursor(browser->lw, browser->lw->start + row);
 378
 379         if( bstate & BUTTON1_CLICKED ) {
 380                 if (prev_selected == browser->lw->selected)
 381                         browser_handle_enter(browser, c);
 382         } else if (bstate & BUTTON3_CLICKED) {
 383                 if (prev_selected == browser->lw->selected)
 384                         browser_handle_select(browser, c);
 385         }
 386
 387         return 1;
 388 }
 389 #endif
 390
 391 static void
 392 screen_browser_paint_callback(WINDOW *w, unsigned i, unsigned y,
 393                               unsigned width, bool selected, void *data);
 394
 395 bool
 396 browser_cmd(struct screen_browser *browser,
 397             struct mpdclient *c, command_t cmd)
 398 {
 399         const struct mpd_song *song;
 400
 401         if (browser->filelist == NULL)
 402                 return false;
 403
 404         if (list_window_cmd(browser->lw, cmd))
 405                 return true;
 406
 407         switch (cmd) {
 408         case CMD_LIST_FIND:
 409         case CMD_LIST_RFIND:
 410         case CMD_LIST_FIND_NEXT:
 411         case CMD_LIST_RFIND_NEXT:
 412                 screen_find(browser->lw, cmd, browser_lw_callback,
 413                             browser->filelist);
 414                 return true;
 415         case CMD_LIST_JUMP:
 416                 screen_jump(browser->lw, browser_lw_callback,
 417                             screen_browser_paint_callback, browser->filelist);
 418                 return true;
 419
 420 #ifdef HAVE_GETMOUSE
 421         case CMD_MOUSE_EVENT:
 422                 browser_handle_mouse_event(browser, c);
 423                 return true;
 424 #endif
 425
 426 #ifdef ENABLE_SONG_SCREEN
 427         case CMD_SCREEN_SONG:
 428                 song = browser_get_selected_song(browser);
 429                 if (song == NULL)
 430                         return false;
 431
 432                 screen_song_switch(c, song);
 433                 return true;
 434 #endif
 435
 436 #ifdef ENABLE_LYRICS_SCREEN
 437         case CMD_SCREEN_LYRICS:
 438                 song = browser_get_selected_song(browser);
 439                 if (song == NULL)
 440                         return false;
 441
 442                 screen_lyrics_switch(c, song, false);
 443                 return true;
 444 #endif
 445         case CMD_SCREEN_SWAP:
 446                 screen_swap(c, browser_get_selected_song(browser));
 447                 return true;
 448
 449         default:
 450                 break;
 451         }
 452
 453         if (!mpdclient_is_connected(c))
 454                 return false;
 455
 456         switch (cmd) {
 457         case CMD_PLAY:
 458                 browser_handle_enter(browser, c);
 459                 return true;
 460
 461         case CMD_SELECT:
 462                 if (browser_handle_select(browser, c))
 463                         list_window_cmd(browser->lw, CMD_LIST_NEXT);
 464                 return true;
 465
 466         case CMD_ADD:
 467                 if (browser_handle_add(browser, c))
 468                         list_window_cmd(browser->lw, CMD_LIST_NEXT);
 469                 return true;
 470
 471         case CMD_SELECT_ALL:
 472                 browser_handle_select_all(browser, c);
 473                 return true;
 474
 475         case CMD_LOCATE:
 476                 song = browser_get_selected_song(browser);
 477                 if (song == NULL)
 478                         return false;
 479
 480                 screen_file_goto_song(c, song);
 481                 return true;
 482
 483         default:
 484                 break;
 485         }
 486
 487         return false;
 488 }
 489
 490 void
 491 screen_browser_paint_directory(WINDOW *w, unsigned width,
 492                                bool selected, const char *name)
 493 {
 494         row_color(w, COLOR_DIRECTORY, selected);
 495
 496         waddch(w, '[');
 497         waddstr(w, name);
 498         waddch(w, ']');
 499
 500         /* erase the unused space after the text */
 501         row_clear_to_eol(w, width, selected);
 502 }
 503
 504 static void
 505 screen_browser_paint_playlist(WINDOW *w, unsigned width,
 506                               bool selected, const char *name)
 507 {
 508         row_paint_text(w, width, COLOR_PLAYLIST, selected, name);
 509 }
 510
 511 static void
 512 screen_browser_paint_callback(WINDOW *w, unsigned i,
 513                               unsigned y, unsigned width,
 514                               bool selected, void *data)
 515 {
 516         const struct filelist *fl = (const struct filelist *) data;
 517         const struct filelist_entry *entry;
 518         const struct mpd_entity *entity;
 519         bool highlight;
 520         const struct mpd_directory *directory;
 521         const struct mpd_playlist *playlist;
 522         char *p;
 523
 524         assert(fl != NULL);
 525         assert(i < filelist_length(fl));
 526
 527         entry = filelist_get(fl, i);
 528         assert(entry != NULL);
 529
 530         entity = entry->entity;
 531         if (entity == NULL) {
 532                 screen_browser_paint_directory(w, width, selected, "..");
 533                 return;
 534         }
 535
 536 #ifndef NCMPC_MINI
 537         highlight = (entry->flags & HIGHLIGHT) != 0;
 538 #else
 539         highlight = false;
 540 #endif
 541
 542         switch (mpd_entity_get_type(entity)) {
 543         case MPD_ENTITY_TYPE_DIRECTORY:
 544                 directory = mpd_entity_get_directory(entity);
 545                 p = utf8_to_locale(g_basename(mpd_directory_get_path(directory)));
 546                 screen_browser_paint_directory(w, width, selected, p);
 547                 g_free(p);
 548                 break;
 549
 550         case MPD_ENTITY_TYPE_SONG:
 551                 paint_song_row(w, y, width, selected, highlight,
 552                                mpd_entity_get_song(entity), NULL);
 553                 break;
 554
 555         case MPD_ENTITY_TYPE_PLAYLIST:
 556                 playlist = mpd_entity_get_playlist(entity);
 557                 p = utf8_to_locale(g_basename(mpd_playlist_get_path(playlist)));
 558                 screen_browser_paint_playlist(w, width, selected, p);
 559                 g_free(p);
 560                 break;
 561
 562         default:
 563                 row_paint_text(w, width, highlight ? COLOR_LIST_BOLD : COLOR_LIST,
 564                                selected, "<unknown>");
 565         }
 566 }
 567
 568 void
 569 screen_browser_paint(const struct screen_browser *browser)
 570 {
 571         list_window_paint2(browser->lw, screen_browser_paint_callback,
 572                            browser->filelist);
 573 }