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
  36 #include <mpd/client.h>
  37
  38 #include <string.h>
  39
  40 #define BUFSIZE 1024
  41
  42 #ifndef NCMPC_MINI
  43 #define HIGHLIGHT  (0x01)
  44 #endif
  45
  46 static const char playlist_format[] = "*%s*";
  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, bool *highlight, G_GNUC_UNUSED char **second_column, 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 #ifndef NCMPC_MINI
  93         *highlight = (entry->flags & HIGHLIGHT) != 0;
  94 #else
  95         *highlight = false;
  96 #endif
  97
  98         if( entity == NULL )
  99                 return "[..]";
 100
 101         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_DIRECTORY) {
 102                 const struct mpd_directory *dir =
 103                         mpd_entity_get_directory(entity);
 104                 char *directory = utf8_to_locale(g_basename(mpd_directory_get_path(dir)));
 105
 106                 g_snprintf(buf, BUFSIZE, "[%s]", directory);
 107                 g_free(directory);
 108                 return buf;
 109         } else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
 110                 const struct mpd_song *song = mpd_entity_get_song(entity);
 111
 112                 strfsong(buf, BUFSIZE, options.list_format, song);
 113                 return buf;
 114         } else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST) {
 115                 const struct mpd_playlist *playlist =
 116                         mpd_entity_get_playlist(entity);
 117                 char *filename = utf8_to_locale(g_basename(mpd_playlist_get_path(playlist)));
 118
 119                 g_snprintf(buf, BUFSIZE, playlist_format, filename);
 120                 g_free(filename);
 121                 return buf;
 122         }
 123
 124         return "Error: Unknown entry!";
 125 }
 126
 127 static bool
 128 load_playlist(struct mpdclient *c, const struct mpd_playlist *playlist)
 129 {
 130         struct mpd_connection *connection = mpdclient_get_connection(c);
 131         char *filename = utf8_to_locale(mpd_playlist_get_path(playlist));
 132
 133         if (mpd_run_load(connection, mpd_playlist_get_path(playlist))) {
 134                 screen_status_printf(_("Loading playlist %s..."),
 135                                      g_basename(filename));
 136                 c->events |= MPD_IDLE_QUEUE;
 137         } else
 138                 mpdclient_handle_error(c);
 139
 140         g_free(filename);
 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;
 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;
 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         }
 343
 344         return range.end == range.start + 1 && success;
 345 }
 346
 347 static void
 348 browser_handle_select_all(struct screen_browser *browser, struct mpdclient *c)
 349 {
 350         guint i;
 351
 352         if (browser->filelist == NULL)
 353                 return;
 354
 355         for (i = 0; i < filelist_length(browser->filelist); ++i) {
 356                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 357
 358                 if (entry != NULL && entry->entity != NULL)
 359                         browser_select_entry(c, entry, FALSE);
 360         }
 361 }
 362
 363 #ifdef HAVE_GETMOUSE
 364 static int
 365 browser_handle_mouse_event(struct screen_browser *browser, struct mpdclient *c)
 366 {
 367         int row;
 368         unsigned prev_selected = browser->lw->selected;
 369         unsigned long bstate;
 370
 371         if (screen_get_mouse_event(c, &bstate, &row) ||
 372             list_window_mouse(browser->lw, bstate, row))
 373                 return 1;
 374
 375         list_window_set_cursor(browser->lw, browser->lw->start + row);
 376
 377         if( bstate & BUTTON1_CLICKED ) {
 378                 if (prev_selected == browser->lw->selected)
 379                         browser_handle_enter(browser, c);
 380         } else if (bstate & BUTTON3_CLICKED) {
 381                 if (prev_selected == browser->lw->selected)
 382                         browser_handle_select(browser, c);
 383         }
 384
 385         return 1;
 386 }
 387 #endif
 388
 389 static void
 390 screen_browser_paint_callback(WINDOW *w, unsigned i, unsigned y,
 391                               unsigned width, bool selected, void *data);
 392
 393 bool
 394 browser_cmd(struct screen_browser *browser,
 395             struct mpdclient *c, command_t cmd)
 396 {
 397         const struct mpd_song *song;
 398
 399         if (browser->filelist == NULL)
 400                 return false;
 401
 402         if (list_window_cmd(browser->lw, cmd))
 403                 return true;
 404
 405         switch (cmd) {
 406         case CMD_LIST_FIND:
 407         case CMD_LIST_RFIND:
 408         case CMD_LIST_FIND_NEXT:
 409         case CMD_LIST_RFIND_NEXT:
 410                 screen_find(browser->lw, cmd, browser_lw_callback,
 411                             browser->filelist);
 412                 return true;
 413         case CMD_LIST_JUMP:
 414                 screen_jump(browser->lw, browser_lw_callback,
 415                             screen_browser_paint_callback, browser->filelist);
 416                 return true;
 417
 418 #ifdef HAVE_GETMOUSE
 419         case CMD_MOUSE_EVENT:
 420                 browser_handle_mouse_event(browser, c);
 421                 return true;
 422 #endif
 423
 424 #ifdef ENABLE_SONG_SCREEN
 425         case CMD_SCREEN_SONG:
 426                 song = browser_get_selected_song(browser);
 427                 if (song == NULL)
 428                         return false;
 429
 430                 screen_song_switch(c, song);
 431                 return true;
 432 #endif
 433
 434 #ifdef ENABLE_LYRICS_SCREEN
 435         case CMD_SCREEN_LYRICS:
 436                 song = browser_get_selected_song(browser);
 437                 if (song == NULL)
 438                         return false;
 439
 440                 screen_lyrics_switch(c, song, false);
 441                 return true;
 442 #endif
 443         case CMD_SCREEN_SWAP:
 444                 screen_swap(c, browser_get_selected_song(browser));
 445                 return true;
 446
 447         default:
 448                 break;
 449         }
 450
 451         if (!mpdclient_is_connected(c))
 452                 return false;
 453
 454         switch (cmd) {
 455         case CMD_PLAY:
 456                 browser_handle_enter(browser, c);
 457                 return true;
 458
 459         case CMD_SELECT:
 460                 if (browser_handle_select(browser, c))
 461                         list_window_cmd(browser->lw, CMD_LIST_NEXT);
 462                 return true;
 463
 464         case CMD_ADD:
 465                 if (browser_handle_add(browser, c))
 466                         list_window_cmd(browser->lw, CMD_LIST_NEXT);
 467                 return true;
 468
 469         case CMD_SELECT_ALL:
 470                 browser_handle_select_all(browser, c);
 471                 return true;
 472
 473         case CMD_LOCATE:
 474                 song = browser_get_selected_song(browser);
 475                 if (song == NULL)
 476                         return false;
 477
 478                 screen_file_goto_song(c, song);
 479                 return true;
 480
 481         default:
 482                 break;
 483         }
 484
 485         return false;
 486 }
 487
 488 static void
 489 screen_browser_paint_directory(WINDOW *w, unsigned width,
 490                                bool selected, const char *name)
 491 {
 492         row_color(w, COLOR_DIRECTORY, selected);
 493
 494         waddch(w, '[');
 495         waddstr(w, name);
 496         waddch(w, ']');
 497
 498         /* erase the unused space after the text */
 499         row_clear_to_eol(w, width, selected);
 500 }
 501
 502 static void
 503 screen_browser_paint_song(WINDOW *w, unsigned width, bool selected,
 504                           bool highlight, const struct mpd_song *song)
 505 {
 506         char buffer[width * 4];
 507
 508         strfsong(buffer, sizeof(buffer), options.list_format, song);
 509         row_paint_text(w, width, highlight ? COLOR_LIST_BOLD : COLOR_LIST,
 510                        selected, buffer);
 511 }
 512
 513 static void
 514 screen_browser_paint_playlist(WINDOW *w, unsigned width,
 515                               bool selected, const char *name)
 516 {
 517         row_paint_text(w, width, COLOR_PLAYLIST, selected, name);
 518 }
 519
 520 static void
 521 screen_browser_paint_callback(WINDOW *w, unsigned i,
 522                               G_GNUC_UNUSED unsigned y, unsigned width,
 523                               bool selected, void *data)
 524 {
 525         const struct filelist *fl = (const struct filelist *) data;
 526         const struct filelist_entry *entry;
 527         const struct mpd_entity *entity;
 528         bool highlight;
 529         const struct mpd_directory *directory;
 530         const struct mpd_playlist *playlist;
 531         char *p;
 532
 533         assert(fl != NULL);
 534         assert(i < filelist_length(fl));
 535
 536         entry = filelist_get(fl, i);
 537         assert(entry != NULL);
 538
 539         entity = entry->entity;
 540         if (entity == NULL) {
 541                 screen_browser_paint_directory(w, width, selected, "..");
 542                 return;
 543         }
 544
 545 #ifndef NCMPC_MINI
 546         highlight = (entry->flags & HIGHLIGHT) != 0;
 547 #else
 548         highlight = false;
 549 #endif
 550
 551         if (highlight)
 552                 colors_use(w, COLOR_LIST_BOLD);
 553         else
 554                 colors_use(w, COLOR_LIST);
 555
 556         switch (mpd_entity_get_type(entity)) {
 557         case MPD_ENTITY_TYPE_DIRECTORY:
 558                 directory = mpd_entity_get_directory(entity);
 559                 p = utf8_to_locale(g_basename(mpd_directory_get_path(directory)));
 560                 screen_browser_paint_directory(w, width, selected, p);
 561                 g_free(p);
 562                 break;
 563
 564         case MPD_ENTITY_TYPE_SONG:
 565                 screen_browser_paint_song(w, width, selected, highlight,
 566                                           mpd_entity_get_song(entity));
 567                 break;
 568
 569         case MPD_ENTITY_TYPE_PLAYLIST:
 570                 playlist = mpd_entity_get_playlist(entity);
 571                 p = utf8_to_locale(g_basename(mpd_playlist_get_path(playlist)));
 572                 screen_browser_paint_playlist(w, width, selected, p);
 573                 g_free(p);
 574                 break;
 575
 576         default:
 577                 waddstr(w, "<unknown>");
 578         }
 579
 580         whline(w, ' ', width);
 581
 582         if (selected)
 583                 wattroff(w, A_REVERSE);
 584 }
 585
 586 void
 587 screen_browser_paint(const struct screen_browser *browser)
 588 {
 589         list_window_paint2(browser->lw, screen_browser_paint_callback,
 590                            browser->filelist);
 591 }