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         struct filelist_entry *entry = filelist_find_song(fl, song);
  60         mpd_InfoEntity *entity;
  61
  62         if (entry == NULL)
  63                 return;
  64
  65         entity = entry->entity;
  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 int
 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 -1;
 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                 } 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 = utf8_to_locale(dir->path);
 200         } else
 201                 return -1;
 202
 203         old_path = g_strdup(browser->filelist->path);
 204
 205         filelist_free(browser->filelist);
 206         browser->filelist = mpdclient_filelist_get(c, path);
 207 #ifndef NCMPC_MINI
 208         sync_highlights(c, browser->filelist);
 209 #endif
 210
 211         idx = filelist_find_directory(browser->filelist, old_path);
 212         g_free(old_path);
 213
 214         list_window_reset(browser->lw);
 215         if (idx >= 0) {
 216                 list_window_set_selected(browser->lw, idx);
 217                 list_window_center(browser->lw,
 218                                    filelist_length(browser->filelist), idx);
 219         }
 220
 221         g_free(path);
 222         return 0;
 223 }
 224
 225 static int
 226 load_playlist(mpdclient_t *c, filelist_entry_t *entry)
 227 {
 228         mpd_InfoEntity *entity = entry->entity;
 229         mpd_PlaylistFile *plf = entity->info.playlistFile;
 230         char *filename = utf8_to_locale(plf->path);
 231
 232         if (mpdclient_cmd_load_playlist_utf8(c, plf->path) == 0)
 233                 screen_status_printf(_("Loading playlist %s..."),
 234                                      g_basename(filename));
 235         g_free(filename);
 236         return 0;
 237 }
 238
 239 static int
 240 enqueue_and_play(mpdclient_t *c, filelist_entry_t *entry)
 241 {
 242         int idx;
 243         mpd_InfoEntity *entity = entry->entity;
 244         mpd_Song *song = entity->info.song;
 245
 246 #ifndef NCMPC_MINI
 247         if (!(entry->flags & HIGHLIGHT)) {
 248 #endif
 249                 if (mpdclient_cmd_add(c, song) == 0) {
 250                         char buf[BUFSIZE];
 251
 252 #ifndef NCMPC_MINI
 253                         entry->flags |= HIGHLIGHT;
 254 #endif
 255                         strfsong(buf, BUFSIZE, options.list_format, song);
 256                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 257                         mpdclient_update(c); /* get song id */
 258                 } else
 259                         return -1;
 260 #ifndef NCMPC_MINI
 261         }
 262 #endif
 263
 264         idx = playlist_get_index_from_file(c, song->file);
 265         mpdclient_cmd_play(c, idx);
 266         return 0;
 267 }
 268
 269 static struct filelist_entry *
 270 browser_get_selected(const struct screen_browser *browser)
 271 {
 272         if (browser->filelist == NULL ||
 273             browser->lw->selected >= filelist_length(browser->filelist))
 274                 return NULL;
 275
 276         return filelist_get(browser->filelist, browser->lw->selected);
 277 }
 278
 279 static int
 280 browser_handle_enter(struct screen_browser *browser, mpdclient_t *c)
 281 {
 282         struct filelist_entry *entry = browser_get_selected(browser);
 283         mpd_InfoEntity *entity;
 284
 285         if( entry==NULL )
 286                 return -1;
 287
 288         entity = entry->entity;
 289         if (entity == NULL || entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY)
 290                 return browser_change_directory(browser, c, entry, NULL);
 291         else if (entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 292                 return load_playlist(c, entry);
 293         else if (entity->type == MPD_INFO_ENTITY_TYPE_SONG)
 294                 return enqueue_and_play(c, entry);
 295         return -1;
 296 }
 297
 298
 299 #ifdef USE_OLD_ADD
 300
 301 static int
 302 add_directory(mpdclient_t *c, char *dir)
 303 {
 304         mpd_InfoEntity *entity;
 305         GList *subdir_list = NULL;
 306         GList *list = NULL;
 307         char *dirname;
 308
 309         dirname = utf8_to_locale(dir);
 310         screen_status_printf(_("Adding directory %s...\n"), dirname);
 311         doupdate();
 312         g_free(dirname);
 313         dirname = NULL;
 314
 315         mpd_sendLsInfoCommand(c->connection, dir);
 316         mpd_sendCommandListBegin(c->connection);
 317         while( (entity=mpd_getNextInfoEntity(c->connection)) ) {
 318                 if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
 319                         mpd_Song *song = entity->info.song;
 320                         mpd_sendAddCommand(c->connection, song->file);
 321                         mpd_freeInfoEntity(entity);
 322                 } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
 323                         subdir_list = g_list_append(subdir_list, (gpointer) entity);
 324                 } else
 325                         mpd_freeInfoEntity(entity);
 326         }
 327         mpd_sendCommandListEnd(c->connection);
 328         mpdclient_finish_command(c);
 329         c->need_update = TRUE;
 330
 331         list = g_list_first(subdir_list);
 332         while( list!=NULL ) {
 333                 mpd_Directory *dir;
 334
 335                 entity = list->data;
 336                 dir = entity->info.directory;
 337                 add_directory(c, dir->path);
 338                 mpd_freeInfoEntity(entity);
 339                 list->data=NULL;
 340                 list=list->next;
 341         }
 342         g_list_free(subdir_list);
 343         return 0;
 344 }
 345 #endif
 346
 347 static int
 348 browser_select_entry(mpdclient_t *c, filelist_entry_t *entry,
 349                      mpd_unused gboolean toggle)
 350 {
 351         assert(entry != NULL);
 352         assert(entry->entity != NULL);
 353
 354         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 355                 return load_playlist(c, entry);
 356
 357         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY) {
 358                 mpd_Directory *dir = entry->entity->info.directory;
 359 #ifdef USE_OLD_ADD
 360                 add_directory(c, tmp);
 361 #else
 362                 if (mpdclient_cmd_add_path_utf8(c, dir->path) == 0) {
 363                         char *tmp = utf8_to_locale(dir->path);
 364
 365                         screen_status_printf(_("Adding \'%s\' to playlist\n"), tmp);
 366                         g_free(tmp);
 367                 }
 368 #endif
 369                 return 0;
 370         }
 371
 372         if (entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 373                 return -1;
 374
 375         assert(entry->entity->info.song != NULL);
 376
 377 #ifndef NCMPC_MINI
 378         if (!toggle || (entry->flags & HIGHLIGHT) == 0)
 379 #endif
 380         {
 381                 mpd_Song *song = entry->entity->info.song;
 382
 383 #ifndef NCMPC_MINI
 384                 entry->flags |= HIGHLIGHT;
 385 #endif
 386
 387                 if (mpdclient_cmd_add(c, song) == 0) {
 388                         char buf[BUFSIZE];
 389
 390                         strfsong(buf, BUFSIZE, options.list_format, song);
 391                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 392                 }
 393 #ifndef NCMPC_MINI
 394         } else {
 395                 /* remove song from playlist */
 396                 mpd_Song *song = entry->entity->info.song;
 397                 int idx;
 398
 399                 entry->flags &= ~HIGHLIGHT;
 400
 401                 while ((idx = playlist_get_index_from_file(c, song->file)) >=0)
 402                         mpdclient_cmd_delete(c, idx);
 403 #endif
 404         }
 405
 406         return 0;
 407 }
 408
 409 static int
 410 browser_handle_select(struct screen_browser *browser, mpdclient_t *c)
 411 {
 412         struct filelist_entry *entry = browser_get_selected(browser);
 413
 414         if (entry == NULL || entry->entity == NULL)
 415                 return -1;
 416
 417         return browser_select_entry(c, entry, TRUE);
 418 }
 419
 420 static int
 421 browser_handle_add(struct screen_browser *browser, mpdclient_t *c)
 422 {
 423         struct filelist_entry *entry = browser_get_selected(browser);
 424
 425         if (entry == NULL || entry->entity == NULL)
 426                 return -1;
 427
 428         return browser_select_entry(c, entry, FALSE);
 429 }
 430
 431 static void
 432 browser_handle_select_all(struct screen_browser *browser, mpdclient_t *c)
 433 {
 434         guint i;
 435
 436         if (browser->filelist == NULL)
 437                 return;
 438
 439         for (i = 0; i < filelist_length(browser->filelist); ++i) {
 440                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 441
 442                 if (entry != NULL && entry->entity != NULL)
 443                         browser_select_entry(c, entry, FALSE);
 444         }
 445 }
 446
 447 #ifdef HAVE_GETMOUSE
 448 static int
 449 browser_handle_mouse_event(struct screen_browser *browser, mpdclient_t *c)
 450 {
 451         int row;
 452         unsigned prev_selected = browser->lw->selected;
 453         unsigned long bstate;
 454         int length;
 455
 456         if (browser->filelist)
 457                 length = filelist_length(browser->filelist);
 458         else
 459                 length = 0;
 460
 461         if (screen_get_mouse_event(c, &bstate, &row) ||
 462             list_window_mouse(browser->lw, length, bstate, row))
 463                 return 1;
 464
 465         browser->lw->selected = browser->lw->start + row;
 466         list_window_check_selected(browser->lw, length);
 467
 468         if( bstate & BUTTON1_CLICKED ) {
 469                 if (prev_selected == browser->lw->selected)
 470                         browser_handle_enter(browser, c);
 471         } else if (bstate & BUTTON3_CLICKED) {
 472                 if (prev_selected == browser->lw->selected)
 473                         browser_handle_select(browser, c);
 474         }
 475
 476         return 1;
 477 }
 478 #endif
 479
 480 bool
 481 browser_cmd(struct screen_browser *browser,
 482             struct mpdclient *c, command_t cmd)
 483 {
 484 #ifdef ENABLE_LYRICS_SCREEN
 485         struct filelist_entry *entry;
 486 #endif
 487
 488         switch (cmd) {
 489         case CMD_PLAY:
 490                 browser_handle_enter(browser, c);
 491                 return true;
 492
 493         case CMD_SELECT:
 494                 if (browser_handle_select(browser, c) == 0)
 495                         /* continue and select next item... */
 496                         cmd = CMD_LIST_NEXT;
 497
 498                 /* call list_window_cmd to go to the next item */
 499                 break;
 500
 501         case CMD_ADD:
 502                 if (browser_handle_add(browser, c) == 0)
 503                         /* continue and select next item... */
 504                         cmd = CMD_LIST_NEXT;
 505
 506                 /* call list_window_cmd to go to the next item */
 507                 break;
 508
 509         case CMD_SELECT_ALL:
 510                 browser_handle_select_all(browser, c);
 511                 return true;
 512
 513         case CMD_LIST_FIND:
 514         case CMD_LIST_RFIND:
 515         case CMD_LIST_FIND_NEXT:
 516         case CMD_LIST_RFIND_NEXT:
 517                 screen_find(browser->lw, filelist_length(browser->filelist),
 518                             cmd, browser_lw_callback,
 519                             browser->filelist);
 520                 return true;
 521
 522 #ifdef HAVE_GETMOUSE
 523         case CMD_MOUSE_EVENT:
 524                 browser_handle_mouse_event(browser, c);
 525                 return true;
 526 #endif
 527
 528 #ifdef ENABLE_LYRICS_SCREEN
 529         case CMD_SCREEN_LYRICS:
 530                 entry = browser_get_selected(browser);
 531                 if (entry == NULL)
 532                         return false;
 533
 534                 if (entry->entity == NULL ||
 535                     entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 536                         return true;
 537
 538                 screen_lyrics_switch(c, entry->entity->info.song);
 539                 return true;
 540 #endif
 541
 542         default:
 543                 break;
 544         }
 545
 546         if (list_window_cmd(browser->lw, filelist_length(browser->filelist),
 547                             cmd))
 548                 return true;
 549
 550         return false;
 551 }