src/screen_browser.c

   1 /*
   2  * (c) 2004 by Kalle Wallin <kaw@linux.se>
   3  * Copyright (C) 2008 Max Kellermann <max@duempel.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  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  *
  18  */
  19
  20 #include "screen_browser.h"
  21 #include "i18n.h"
  22 #include "options.h"
  23 #include "charset.h"
  24 #include "strfsong.h"
  25 #include "screen_utils.h"
  26
  27 #include <string.h>
  28
  29 #undef  USE_OLD_ADD
  30
  31 #define BUFSIZE 1024
  32
  33 #ifndef NCMPC_MINI
  34 #define HIGHLIGHT  (0x01)
  35 #endif
  36
  37 static const char playlist_format[] = "*%s*";
  38
  39 #ifndef NCMPC_MINI
  40
  41 /* clear the highlight flag for all items in the filelist */
  42 static void
  43 clear_highlights(mpdclient_filelist_t *fl)
  44 {
  45         guint i;
  46
  47         for (i = 0; i < filelist_length(fl); ++i) {
  48                 struct filelist_entry *entry = filelist_get(fl, i);
  49
  50                 entry->flags &= ~HIGHLIGHT;
  51         }
  52 }
  53
  54 /* change the highlight flag for a song */
  55 static void
  56 set_highlight(mpdclient_filelist_t *fl, mpd_Song *song, int highlight)
  57 {
  58         int i = filelist_find_song(fl, song);
  59         struct filelist_entry *entry;
  60
  61         if (i < 0)
  62                 return;
  63
  64         entry = filelist_get(fl, i);
  65         if (highlight)
  66                 entry->flags |= HIGHLIGHT;
  67         else
  68                 entry->flags &= ~HIGHLIGHT;
  69 }
  70
  71 /* sync highlight flags with playlist */
  72 void
  73 sync_highlights(mpdclient_t *c, mpdclient_filelist_t *fl)
  74 {
  75         guint i;
  76
  77         for (i = 0; i < filelist_length(fl); ++i) {
  78                 struct filelist_entry *entry = filelist_get(fl, i);
  79                 mpd_InfoEntity *entity = entry->entity;
  80
  81                 if ( entity && entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
  82                         mpd_Song *song = entity->info.song;
  83
  84                         if( playlist_get_index_from_file(c, song->file) >= 0 )
  85                                 entry->flags |= HIGHLIGHT;
  86                         else
  87                                 entry->flags &= ~HIGHLIGHT;
  88                 }
  89         }
  90 }
  91
  92 /* the playlist have been updated -> fix highlights */
  93 void
  94 browser_playlist_changed(struct screen_browser *browser, mpdclient_t *c,
  95                          int event, gpointer data)
  96 {
  97         if (browser->filelist == NULL)
  98                 return;
  99
 100         switch(event) {
 101         case PLAYLIST_EVENT_CLEAR:
 102                 clear_highlights(browser->filelist);
 103                 break;
 104         case PLAYLIST_EVENT_ADD:
 105                 set_highlight(browser->filelist, (mpd_Song *) data, 1);
 106                 break;
 107         case PLAYLIST_EVENT_DELETE:
 108                 set_highlight(browser->filelist, (mpd_Song *) data, 0);
 109                 break;
 110         case PLAYLIST_EVENT_MOVE:
 111                 break;
 112         default:
 113                 sync_highlights(c, browser->filelist);
 114                 break;
 115         }
 116 }
 117
 118 #endif
 119
 120 /* list_window callback */
 121 const char *
 122 browser_lw_callback(unsigned idx, int *highlight, void *data)
 123 {
 124         static char buf[BUFSIZE];
 125         mpdclient_filelist_t *fl = (mpdclient_filelist_t *) data;
 126         filelist_entry_t *entry;
 127         mpd_InfoEntity *entity;
 128
 129         if (idx >= filelist_length(fl))
 130                 return NULL;
 131
 132         entry = filelist_get(fl, idx);
 133         assert(entry != NULL);
 134
 135         entity = entry->entity;
 136 #ifndef NCMPC_MINI
 137         *highlight = (entry->flags & HIGHLIGHT);
 138 #else
 139         *highlight = false;
 140 #endif
 141
 142         if( entity == NULL )
 143                 return "[..]";
 144
 145         if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
 146                 mpd_Directory *dir = entity->info.directory;
 147                 char *directory = utf8_to_locale(g_basename(dir->path));
 148
 149                 g_snprintf(buf, BUFSIZE, "[%s]", directory);
 150                 g_free(directory);
 151                 return buf;
 152         } else if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
 153                 mpd_Song *song = entity->info.song;
 154
 155                 strfsong(buf, BUFSIZE, options.list_format, song);
 156                 return buf;
 157         } else if( entity->type==MPD_INFO_ENTITY_TYPE_PLAYLISTFILE ) {
 158                 mpd_PlaylistFile *plf = entity->info.playlistFile;
 159                 char *filename = utf8_to_locale(g_basename(plf->path));
 160
 161                 g_snprintf(buf, BUFSIZE, playlist_format, filename);
 162                 g_free(filename);
 163                 return buf;
 164         }
 165
 166         return "Error: Unknown entry!";
 167 }
 168
 169 /* chdir */
 170 bool
 171 browser_change_directory(struct screen_browser *browser, mpdclient_t *c,
 172                          filelist_entry_t *entry, const char *new_path)
 173 {
 174         mpd_InfoEntity *entity = NULL;
 175         gchar *path = NULL;
 176         char *old_path;
 177         int idx;
 178
 179         if( entry!=NULL )
 180                 entity = entry->entity;
 181         else if( new_path==NULL )
 182                 return false;
 183
 184         if( entity==NULL ) {
 185                 if( entry || 0==strcmp(new_path, "..") ) {
 186                         /* return to parent */
 187                         char *parent = g_path_get_dirname(browser->filelist->path);
 188                         if( strcmp(parent, ".") == 0 )
 189                                 parent[0] = '\0';
 190                         path = g_strdup(parent);
 191                         g_free(parent);
 192                 } else {
 193                         /* entry==NULL, then new_path ("" is root) */
 194                         path = g_strdup(new_path);
 195                 }
 196         } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY) {
 197                 /* enter sub */
 198                 mpd_Directory *dir = entity->info.directory;
 199                 path = g_strdup(dir->path);
 200         } else
 201                 return false;
 202
 203         if (browser->filelist != NULL) {
 204                 old_path = g_strdup(browser->filelist->path);
 205                 filelist_free(browser->filelist);
 206         } else
 207                 old_path = NULL;
 208
 209         browser->filelist = mpdclient_filelist_get(c, path);
 210 #ifndef NCMPC_MINI
 211         sync_highlights(c, browser->filelist);
 212 #endif
 213
 214         idx = old_path != NULL
 215                 ? filelist_find_directory(browser->filelist, old_path)
 216                 : -1;
 217         g_free(old_path);
 218
 219         list_window_reset(browser->lw);
 220         if (idx >= 0) {
 221                 list_window_set_selected(browser->lw, idx);
 222                 list_window_center(browser->lw,
 223                                    filelist_length(browser->filelist), idx);
 224         }
 225
 226         g_free(path);
 227         return true;
 228 }
 229
 230 static bool
 231 load_playlist(mpdclient_t *c, filelist_entry_t *entry)
 232 {
 233         mpd_InfoEntity *entity = entry->entity;
 234         mpd_PlaylistFile *plf = entity->info.playlistFile;
 235         char *filename = utf8_to_locale(plf->path);
 236
 237         if (mpdclient_cmd_load_playlist(c, plf->path) == 0)
 238                 screen_status_printf(_("Loading playlist %s..."),
 239                                      g_basename(filename));
 240         g_free(filename);
 241         return true;
 242 }
 243
 244 static bool
 245 enqueue_and_play(mpdclient_t *c, filelist_entry_t *entry)
 246 {
 247         int idx;
 248         mpd_InfoEntity *entity = entry->entity;
 249         mpd_Song *song = entity->info.song;
 250
 251 #ifndef NCMPC_MINI
 252         if (!(entry->flags & HIGHLIGHT)) {
 253 #endif
 254                 if (mpdclient_cmd_add(c, song) == 0) {
 255                         char buf[BUFSIZE];
 256
 257 #ifndef NCMPC_MINI
 258                         entry->flags |= HIGHLIGHT;
 259 #endif
 260                         strfsong(buf, BUFSIZE, options.list_format, song);
 261                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 262                         mpdclient_update(c); /* get song id */
 263                 } else
 264                         return false;
 265 #ifndef NCMPC_MINI
 266         }
 267 #endif
 268
 269         idx = playlist_get_index_from_file(c, song->file);
 270         mpdclient_cmd_play(c, idx);
 271         return true;
 272 }
 273
 274 static struct filelist_entry *
 275 browser_get_selected(const struct screen_browser *browser)
 276 {
 277         if (browser->filelist == NULL ||
 278             browser->lw->selected >= filelist_length(browser->filelist))
 279                 return NULL;
 280
 281         return filelist_get(browser->filelist, browser->lw->selected);
 282 }
 283
 284 static bool
 285 browser_handle_enter(struct screen_browser *browser, mpdclient_t *c)
 286 {
 287         struct filelist_entry *entry = browser_get_selected(browser);
 288         mpd_InfoEntity *entity;
 289
 290         if( entry==NULL )
 291                 return false;
 292
 293         entity = entry->entity;
 294         if (entity == NULL || entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY)
 295                 return browser_change_directory(browser, c, entry, NULL);
 296         else if (entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 297                 return load_playlist(c, entry);
 298         else if (entity->type == MPD_INFO_ENTITY_TYPE_SONG)
 299                 return enqueue_and_play(c, entry);
 300         return false;
 301 }
 302
 303
 304 #ifdef USE_OLD_ADD
 305
 306 static int
 307 add_directory(mpdclient_t *c, char *dir)
 308 {
 309         mpd_InfoEntity *entity;
 310         GList *subdir_list = NULL;
 311         GList *list = NULL;
 312         char *dirname;
 313
 314         dirname = utf8_to_locale(dir);
 315         screen_status_printf(_("Adding directory %s...\n"), dirname);
 316         doupdate();
 317         g_free(dirname);
 318         dirname = NULL;
 319
 320         mpd_sendLsInfoCommand(c->connection, dir);
 321         mpd_sendCommandListBegin(c->connection);
 322         while( (entity=mpd_getNextInfoEntity(c->connection)) ) {
 323                 if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
 324                         mpd_Song *song = entity->info.song;
 325                         mpd_sendAddCommand(c->connection, song->file);
 326                         mpd_freeInfoEntity(entity);
 327                 } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
 328                         subdir_list = g_list_append(subdir_list, (gpointer) entity);
 329                 } else
 330                         mpd_freeInfoEntity(entity);
 331         }
 332         mpd_sendCommandListEnd(c->connection);
 333         mpdclient_finish_command(c);
 334         c->need_update = TRUE;
 335
 336         list = g_list_first(subdir_list);
 337         while( list!=NULL ) {
 338                 mpd_Directory *dir;
 339
 340                 entity = list->data;
 341                 dir = entity->info.directory;
 342                 add_directory(c, dir->path);
 343                 mpd_freeInfoEntity(entity);
 344                 list->data=NULL;
 345                 list=list->next;
 346         }
 347         g_list_free(subdir_list);
 348         return 0;
 349 }
 350 #endif
 351
 352 static bool
 353 browser_select_entry(mpdclient_t *c, filelist_entry_t *entry,
 354                      G_GNUC_UNUSED gboolean toggle)
 355 {
 356         assert(entry != NULL);
 357         assert(entry->entity != NULL);
 358
 359         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 360                 return load_playlist(c, entry);
 361
 362         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY) {
 363                 mpd_Directory *dir = entry->entity->info.directory;
 364 #ifdef USE_OLD_ADD
 365                 add_directory(c, tmp);
 366 #else
 367                 if (mpdclient_cmd_add_path(c, dir->path) == 0) {
 368                         char *tmp = utf8_to_locale(dir->path);
 369
 370                         screen_status_printf(_("Adding \'%s\' to playlist\n"), tmp);
 371                         g_free(tmp);
 372                 }
 373 #endif
 374                 return true;
 375         }
 376
 377         if (entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 378                 return false;
 379
 380         assert(entry->entity->info.song != NULL);
 381
 382 #ifndef NCMPC_MINI
 383         if (!toggle || (entry->flags & HIGHLIGHT) == 0)
 384 #endif
 385         {
 386                 mpd_Song *song = entry->entity->info.song;
 387
 388 #ifndef NCMPC_MINI
 389                 entry->flags |= HIGHLIGHT;
 390 #endif
 391
 392                 if (mpdclient_cmd_add(c, song) == 0) {
 393                         char buf[BUFSIZE];
 394
 395                         strfsong(buf, BUFSIZE, options.list_format, song);
 396                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 397                 }
 398 #ifndef NCMPC_MINI
 399         } else {
 400                 /* remove song from playlist */
 401                 mpd_Song *song = entry->entity->info.song;
 402                 int idx;
 403
 404                 entry->flags &= ~HIGHLIGHT;
 405
 406                 while ((idx = playlist_get_index_from_file(c, song->file)) >=0)
 407                         mpdclient_cmd_delete(c, idx);
 408 #endif
 409         }
 410
 411         return true;
 412 }
 413
 414 static bool
 415 browser_handle_select(struct screen_browser *browser, mpdclient_t *c)
 416 {
 417         struct filelist_entry *entry = browser_get_selected(browser);
 418
 419         if (entry == NULL || entry->entity == NULL)
 420                 return false;
 421
 422         return browser_select_entry(c, entry, TRUE);
 423 }
 424
 425 static bool
 426 browser_handle_add(struct screen_browser *browser, mpdclient_t *c)
 427 {
 428         struct filelist_entry *entry = browser_get_selected(browser);
 429
 430         if (entry == NULL || entry->entity == NULL)
 431                 return false;
 432
 433         return browser_select_entry(c, entry, FALSE);
 434 }
 435
 436 static void
 437 browser_handle_select_all(struct screen_browser *browser, mpdclient_t *c)
 438 {
 439         guint i;
 440
 441         if (browser->filelist == NULL)
 442                 return;
 443
 444         for (i = 0; i < filelist_length(browser->filelist); ++i) {
 445                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 446
 447                 if (entry != NULL && entry->entity != NULL)
 448                         browser_select_entry(c, entry, FALSE);
 449         }
 450 }
 451
 452 #ifdef HAVE_GETMOUSE
 453 static int
 454 browser_handle_mouse_event(struct screen_browser *browser, mpdclient_t *c)
 455 {
 456         int row;
 457         unsigned prev_selected = browser->lw->selected;
 458         unsigned long bstate;
 459         int length;
 460
 461         if (browser->filelist)
 462                 length = filelist_length(browser->filelist);
 463         else
 464                 length = 0;
 465
 466         if (screen_get_mouse_event(c, &bstate, &row) ||
 467             list_window_mouse(browser->lw, length, bstate, row))
 468                 return 1;
 469
 470         browser->lw->selected = browser->lw->start + row;
 471         list_window_check_selected(browser->lw, length);
 472
 473         if( bstate & BUTTON1_CLICKED ) {
 474                 if (prev_selected == browser->lw->selected)
 475                         browser_handle_enter(browser, c);
 476         } else if (bstate & BUTTON3_CLICKED) {
 477                 if (prev_selected == browser->lw->selected)
 478                         browser_handle_select(browser, c);
 479         }
 480
 481         return 1;
 482 }
 483 #endif
 484
 485 bool
 486 browser_cmd(struct screen_browser *browser,
 487             struct mpdclient *c, command_t cmd)
 488 {
 489         struct filelist_entry *entry;
 490
 491         switch (cmd) {
 492         case CMD_PLAY:
 493                 browser_handle_enter(browser, c);
 494                 return true;
 495
 496         case CMD_SELECT:
 497                 if (browser_handle_select(browser, c))
 498                         /* continue and select next item... */
 499                         cmd = CMD_LIST_NEXT;
 500
 501                 /* call list_window_cmd to go to the next item */
 502                 break;
 503
 504         case CMD_ADD:
 505                 if (browser_handle_add(browser, c))
 506                         /* continue and select next item... */
 507                         cmd = CMD_LIST_NEXT;
 508
 509                 /* call list_window_cmd to go to the next item */
 510                 break;
 511
 512         case CMD_SELECT_ALL:
 513                 browser_handle_select_all(browser, c);
 514                 return true;
 515
 516         case CMD_LIST_FIND:
 517         case CMD_LIST_RFIND:
 518         case CMD_LIST_FIND_NEXT:
 519         case CMD_LIST_RFIND_NEXT:
 520                 screen_find(browser->lw, filelist_length(browser->filelist),
 521                             cmd, browser_lw_callback,
 522                             browser->filelist);
 523                 return true;
 524
 525 #ifdef HAVE_GETMOUSE
 526         case CMD_MOUSE_EVENT:
 527                 browser_handle_mouse_event(browser, c);
 528                 return true;
 529 #endif
 530
 531 #ifdef ENABLE_SONG_SCREEN
 532         case CMD_VIEW:
 533                 entry = browser_get_selected(browser);
 534                 if (entry == NULL || entry->entity == NULL ||
 535                     entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 536                         return false;
 537
 538                 screen_song_switch(c, entry->entity->info.song);
 539                 return true;
 540 #endif
 541
 542         case CMD_LOCATE:
 543                 entry = browser_get_selected(browser);
 544                 if (entry == NULL || entry->entity == NULL ||
 545                     entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 546                         return false;
 547
 548                 screen_file_goto_song(c, entry->entity->info.song);
 549                 return true;
 550
 551 #ifdef ENABLE_LYRICS_SCREEN
 552         case CMD_SCREEN_LYRICS:
 553                 entry = browser_get_selected(browser);
 554                 if (entry == NULL)
 555                         return false;
 556
 557                 if (entry->entity == NULL ||
 558                     entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 559                         return true;
 560
 561                 screen_lyrics_switch(c, entry->entity->info.song);
 562                 return true;
 563 #endif
 564
 565         default:
 566                 break;
 567         }
 568
 569         if (list_window_cmd(browser->lw, filelist_length(browser->filelist),
 570                             cmd))
 571                 return true;
 572
 573         return false;
 574 }