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 #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         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 = false;
 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 = false;
 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                                 success;
 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 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
 565 void
 566 screen_browser_paint(const struct screen_browser *browser)
 567 {
 568         list_window_paint2(browser->lw, screen_browser_paint_callback,
 569                            browser->filelist);
 570 }