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, bool *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) != 0;
 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         /* translators: a directory is being added the to playlist */
 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                      G_GNUC_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         struct filelist_entry *entry;
 491
 492         switch (cmd) {
 493         case CMD_PLAY:
 494                 browser_handle_enter(browser, c);
 495                 return true;
 496
 497         case CMD_SELECT:
 498                 if (browser_handle_select(browser, c))
 499                         /* continue and select next item... */
 500                         cmd = CMD_LIST_NEXT;
 501
 502                 /* call list_window_cmd to go to the next item */
 503                 break;
 504
 505         case CMD_ADD:
 506                 if (browser_handle_add(browser, c))
 507                         /* continue and select next item... */
 508                         cmd = CMD_LIST_NEXT;
 509
 510                 /* call list_window_cmd to go to the next item */
 511                 break;
 512
 513         case CMD_SELECT_ALL:
 514                 browser_handle_select_all(browser, c);
 515                 return true;
 516
 517         case CMD_LIST_FIND:
 518         case CMD_LIST_RFIND:
 519         case CMD_LIST_FIND_NEXT:
 520         case CMD_LIST_RFIND_NEXT:
 521                 screen_find(browser->lw, filelist_length(browser->filelist),
 522                             cmd, browser_lw_callback,
 523                             browser->filelist);
 524                 return true;
 525
 526 #ifdef HAVE_GETMOUSE
 527         case CMD_MOUSE_EVENT:
 528                 browser_handle_mouse_event(browser, c);
 529                 return true;
 530 #endif
 531
 532 #ifdef ENABLE_SONG_SCREEN
 533         case CMD_VIEW:
 534                 entry = browser_get_selected(browser);
 535                 if (entry == NULL || entry->entity == NULL ||
 536                     entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 537                         return false;
 538
 539                 screen_song_switch(c, entry->entity->info.song);
 540                 return true;
 541 #endif
 542
 543         case CMD_LOCATE:
 544                 entry = browser_get_selected(browser);
 545                 if (entry == NULL || entry->entity == NULL ||
 546                     entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 547                         return false;
 548
 549                 screen_file_goto_song(c, entry->entity->info.song);
 550                 return true;
 551
 552 #ifdef ENABLE_LYRICS_SCREEN
 553         case CMD_SCREEN_LYRICS:
 554                 entry = browser_get_selected(browser);
 555                 if (entry == NULL)
 556                         return false;
 557
 558                 if (entry->entity == NULL ||
 559                     entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 560                         return true;
 561
 562                 screen_lyrics_switch(c, entry->entity->info.song);
 563                 return true;
 564 #endif
 565
 566         default:
 567                 break;
 568         }
 569
 570         if (list_window_cmd(browser->lw, filelist_length(browser->filelist),
 571                             cmd))
 572                 return true;
 573
 574         return false;
 575 }