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