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