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