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