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 #define HIGHLIGHT  (0x01)
  35
  36 static const char playlist_format[] = "*%s*";
  37
  38 /* clear the highlight flag for all items in the filelist */
  39 static void
  40 clear_highlights(mpdclient_filelist_t *fl)
  41 {
  42         guint i;
  43
  44         for (i = 0; i < filelist_length(fl); ++i) {
  45                 struct filelist_entry *entry = filelist_get(fl, i);
  46
  47                 entry->flags &= ~HIGHLIGHT;
  48         }
  49 }
  50
  51 /* change the highlight flag for a song */
  52 static void
  53 set_highlight(mpdclient_filelist_t *fl, mpd_Song *song, int highlight)
  54 {
  55         struct filelist_entry *entry = filelist_find_song(fl, song);
  56         mpd_InfoEntity *entity;
  57
  58         if (entry == NULL)
  59                 return;
  60
  61         entity = entry->entity;
  62         if (highlight)
  63                 entry->flags |= HIGHLIGHT;
  64         else
  65                 entry->flags &= ~HIGHLIGHT;
  66 }
  67
  68 /* sync highlight flags with playlist */
  69 void
  70 sync_highlights(mpdclient_t *c, mpdclient_filelist_t *fl)
  71 {
  72         guint i;
  73
  74         for (i = 0; i < filelist_length(fl); ++i) {
  75                 struct filelist_entry *entry = filelist_get(fl, i);
  76                 mpd_InfoEntity *entity = entry->entity;
  77
  78                 if ( entity && entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
  79                         mpd_Song *song = entity->info.song;
  80
  81                         if( playlist_get_index_from_file(c, song->file) >= 0 )
  82                                 entry->flags |= HIGHLIGHT;
  83                         else
  84                                 entry->flags &= ~HIGHLIGHT;
  85                 }
  86         }
  87 }
  88
  89 /* the playlist have been updated -> fix highlights */
  90 void
  91 browser_playlist_changed(struct screen_browser *browser, mpdclient_t *c,
  92                          int event, gpointer data)
  93 {
  94         if (browser->filelist == NULL)
  95                 return;
  96
  97         switch(event) {
  98         case PLAYLIST_EVENT_CLEAR:
  99                 clear_highlights(browser->filelist);
 100                 break;
 101         case PLAYLIST_EVENT_ADD:
 102                 set_highlight(browser->filelist, (mpd_Song *) data, 1);
 103                 break;
 104         case PLAYLIST_EVENT_DELETE:
 105                 set_highlight(browser->filelist, (mpd_Song *) data, 0);
 106                 break;
 107         case PLAYLIST_EVENT_MOVE:
 108                 break;
 109         default:
 110                 sync_highlights(c, browser->filelist);
 111                 break;
 112         }
 113 }
 114
 115 /* list_window callback */
 116 const char *
 117 browser_lw_callback(unsigned idx, int *highlight, void *data)
 118 {
 119         static char buf[BUFSIZE];
 120         mpdclient_filelist_t *fl = (mpdclient_filelist_t *) data;
 121         filelist_entry_t *entry;
 122         mpd_InfoEntity *entity;
 123
 124         if (idx >= filelist_length(fl))
 125                 return NULL;
 126
 127         entry = filelist_get(fl, idx);
 128         assert(entry != NULL);
 129
 130         entity = entry->entity;
 131         *highlight = (entry->flags & HIGHLIGHT);
 132
 133         if( entity == NULL )
 134                 return "[..]";
 135
 136         if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
 137                 mpd_Directory *dir = entity->info.directory;
 138                 char *directory = utf8_to_locale(g_basename(dir->path));
 139
 140                 g_snprintf(buf, BUFSIZE, "[%s]", directory);
 141                 g_free(directory);
 142                 return buf;
 143         } else if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
 144                 mpd_Song *song = entity->info.song;
 145
 146                 strfsong(buf, BUFSIZE, options.list_format, song);
 147                 return buf;
 148         } else if( entity->type==MPD_INFO_ENTITY_TYPE_PLAYLISTFILE ) {
 149                 mpd_PlaylistFile *plf = entity->info.playlistFile;
 150                 char *filename = utf8_to_locale(g_basename(plf->path));
 151
 152                 g_snprintf(buf, BUFSIZE, playlist_format, filename);
 153                 g_free(filename);
 154                 return buf;
 155         }
 156
 157         return "Error: Unknown entry!";
 158 }
 159
 160 /* chdir */
 161 int
 162 browser_change_directory(struct screen_browser *browser, mpdclient_t *c,
 163                          filelist_entry_t *entry, const char *new_path)
 164 {
 165         mpd_InfoEntity *entity = NULL;
 166         gchar *path = NULL;
 167         char *old_path;
 168         int idx;
 169
 170         if( entry!=NULL )
 171                 entity = entry->entity;
 172         else if( new_path==NULL )
 173                 return -1;
 174
 175         if( entity==NULL ) {
 176                 if( entry || 0==strcmp(new_path, "..") ) {
 177                         /* return to parent */
 178                         char *parent = g_path_get_dirname(browser->filelist->path);
 179                         if( strcmp(parent, ".") == 0 )
 180                                 parent[0] = '\0';
 181                         path = g_strdup(parent);
 182                 } else {
 183                         /* entry==NULL, then new_path ("" is root) */
 184                         path = g_strdup(new_path);
 185                 }
 186         } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY) {
 187                 /* enter sub */
 188                 mpd_Directory *dir = entity->info.directory;
 189                 path = utf8_to_locale(dir->path);
 190         } else
 191                 return -1;
 192
 193         old_path = g_strdup(browser->filelist->path);
 194
 195         filelist_free(browser->filelist);
 196         browser->filelist = mpdclient_filelist_get(c, path);
 197         sync_highlights(c, browser->filelist);
 198
 199         idx = filelist_find_directory(browser->filelist, old_path);
 200         g_free(old_path);
 201
 202         list_window_reset(browser->lw);
 203         if (idx >= 0) {
 204                 list_window_set_selected(browser->lw, idx);
 205                 list_window_center(browser->lw,
 206                                    filelist_length(browser->filelist), idx);
 207         }
 208
 209         g_free(path);
 210         return 0;
 211 }
 212
 213 static int
 214 load_playlist(mpdclient_t *c, filelist_entry_t *entry)
 215 {
 216         mpd_InfoEntity *entity = entry->entity;
 217         mpd_PlaylistFile *plf = entity->info.playlistFile;
 218         char *filename = utf8_to_locale(plf->path);
 219
 220         if (mpdclient_cmd_load_playlist_utf8(c, plf->path) == 0)
 221                 screen_status_printf(_("Loading playlist %s..."),
 222                                      g_basename(filename));
 223         g_free(filename);
 224         return 0;
 225 }
 226
 227 static int
 228 enqueue_and_play(mpdclient_t *c, filelist_entry_t *entry)
 229 {
 230         int idx;
 231         mpd_InfoEntity *entity = entry->entity;
 232         mpd_Song *song = entity->info.song;
 233
 234         if (!(entry->flags & HIGHLIGHT)) {
 235                 if (mpdclient_cmd_add(c, song) == 0) {
 236                         char buf[BUFSIZE];
 237
 238                         entry->flags |= HIGHLIGHT;
 239                         strfsong(buf, BUFSIZE, options.list_format, song);
 240                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 241                         mpdclient_update(c); /* get song id */
 242                 } else
 243                         return -1;
 244         }
 245
 246         idx = playlist_get_index_from_file(c, song->file);
 247         mpdclient_cmd_play(c, idx);
 248         return 0;
 249 }
 250
 251 static struct filelist_entry *
 252 browser_get_selected(const struct screen_browser *browser)
 253 {
 254         if (browser->filelist == NULL ||
 255             browser->lw->selected >= filelist_length(browser->filelist))
 256                 return NULL;
 257
 258         return filelist_get(browser->filelist, browser->lw->selected);
 259 }
 260
 261 static int
 262 browser_handle_enter(struct screen_browser *browser, mpdclient_t *c)
 263 {
 264         struct filelist_entry *entry = browser_get_selected(browser);
 265         mpd_InfoEntity *entity;
 266
 267         if( entry==NULL )
 268                 return -1;
 269
 270         entity = entry->entity;
 271         if (entity == NULL || entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY)
 272                 return browser_change_directory(browser, c, entry, NULL);
 273         else if (entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 274                 return load_playlist(c, entry);
 275         else if (entity->type == MPD_INFO_ENTITY_TYPE_SONG)
 276                 return enqueue_and_play(c, entry);
 277         return -1;
 278 }
 279
 280
 281 #ifdef USE_OLD_ADD
 282
 283 static int
 284 add_directory(mpdclient_t *c, char *dir)
 285 {
 286         mpd_InfoEntity *entity;
 287         GList *subdir_list = NULL;
 288         GList *list = NULL;
 289         char *dirname;
 290
 291         dirname = utf8_to_locale(dir);
 292         screen_status_printf(_("Adding directory %s...\n"), dirname);
 293         doupdate();
 294         g_free(dirname);
 295         dirname = NULL;
 296
 297         mpd_sendLsInfoCommand(c->connection, dir);
 298         mpd_sendCommandListBegin(c->connection);
 299         while( (entity=mpd_getNextInfoEntity(c->connection)) ) {
 300                 if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
 301                         mpd_Song *song = entity->info.song;
 302                         mpd_sendAddCommand(c->connection, song->file);
 303                         mpd_freeInfoEntity(entity);
 304                 } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
 305                         subdir_list = g_list_append(subdir_list, (gpointer) entity);
 306                 } else
 307                         mpd_freeInfoEntity(entity);
 308         }
 309         mpd_sendCommandListEnd(c->connection);
 310         mpdclient_finish_command(c);
 311         c->need_update = TRUE;
 312
 313         list = g_list_first(subdir_list);
 314         while( list!=NULL ) {
 315                 mpd_Directory *dir;
 316
 317                 entity = list->data;
 318                 dir = entity->info.directory;
 319                 add_directory(c, dir->path);
 320                 mpd_freeInfoEntity(entity);
 321                 list->data=NULL;
 322                 list=list->next;
 323         }
 324         g_list_free(subdir_list);
 325         return 0;
 326 }
 327 #endif
 328
 329 static int
 330 browser_select_entry(mpdclient_t *c, filelist_entry_t *entry,
 331                      gboolean toggle)
 332 {
 333         assert(entry != NULL);
 334         assert(entry->entity != NULL);
 335
 336         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 337                 return load_playlist(c, entry);
 338
 339         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY) {
 340                 mpd_Directory *dir = entry->entity->info.directory;
 341 #ifdef USE_OLD_ADD
 342                 add_directory(c, tmp);
 343 #else
 344                 if (mpdclient_cmd_add_path_utf8(c, dir->path) == 0) {
 345                         char *tmp = utf8_to_locale(dir->path);
 346
 347                         screen_status_printf(_("Adding \'%s\' to playlist\n"), tmp);
 348                         g_free(tmp);
 349                 }
 350 #endif
 351                 return 0;
 352         }
 353
 354         if (entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 355                 return -1;
 356
 357         assert(entry->entity->info.song != NULL);
 358
 359         if (!toggle || (entry->flags & HIGHLIGHT) == 0) {
 360                 mpd_Song *song = entry->entity->info.song;
 361
 362                 entry->flags |= HIGHLIGHT;
 363
 364                 if (mpdclient_cmd_add(c, song) == 0) {
 365                         char buf[BUFSIZE];
 366
 367                         strfsong(buf, BUFSIZE, options.list_format, song);
 368                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 369                 }
 370         } else {
 371                 /* remove song from playlist */
 372                 mpd_Song *song = entry->entity->info.song;
 373                 int idx;
 374
 375                 entry->flags &= ~HIGHLIGHT;
 376
 377                 while ((idx = playlist_get_index_from_file(c, song->file)) >=0)
 378                         mpdclient_cmd_delete(c, idx);
 379         }
 380
 381         return 0;
 382 }
 383
 384 static int
 385 browser_handle_select(struct screen_browser *browser, mpdclient_t *c)
 386 {
 387         struct filelist_entry *entry = browser_get_selected(browser);
 388
 389         if (entry == NULL || entry->entity == NULL)
 390                 return -1;
 391
 392         return browser_select_entry(c, entry, TRUE);
 393 }
 394
 395 static int
 396 browser_handle_add(struct screen_browser *browser, mpdclient_t *c)
 397 {
 398         struct filelist_entry *entry = browser_get_selected(browser);
 399
 400         if (entry == NULL || entry->entity == NULL)
 401                 return -1;
 402
 403         return browser_select_entry(c, entry, FALSE);
 404 }
 405
 406 static void
 407 browser_handle_select_all(struct screen_browser *browser, mpdclient_t *c)
 408 {
 409         guint i;
 410
 411         if (browser->filelist == NULL)
 412                 return;
 413
 414         for (i = 0; i < filelist_length(browser->filelist); ++i) {
 415                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 416
 417                 if (entry != NULL && entry->entity != NULL)
 418                         browser_select_entry(c, entry, FALSE);
 419         }
 420 }
 421
 422 #ifdef HAVE_GETMOUSE
 423 static int
 424 browser_handle_mouse_event(struct screen_browser *browser, mpdclient_t *c)
 425 {
 426         int row;
 427         unsigned prev_selected = browser->lw->selected;
 428         unsigned long bstate;
 429         int length;
 430
 431         if (browser->filelist)
 432                 length = filelist_length(browser->filelist);
 433         else
 434                 length = 0;
 435
 436         if (screen_get_mouse_event(c, &bstate, &row) ||
 437             list_window_mouse(browser->lw, length, bstate, row))
 438                 return 1;
 439
 440         browser->lw->selected = browser->lw->start + row;
 441         list_window_check_selected(browser->lw, length);
 442
 443         if( bstate & BUTTON1_CLICKED ) {
 444                 if (prev_selected == browser->lw->selected)
 445                         browser_handle_enter(browser, c);
 446         } else if (bstate & BUTTON3_CLICKED) {
 447                 if (prev_selected == browser->lw->selected)
 448                         browser_handle_select(browser, c);
 449         }
 450
 451         return 1;
 452 }
 453 #endif
 454
 455 bool
 456 browser_cmd(struct screen_browser *browser, struct screen *screen,
 457             struct mpdclient *c, command_t cmd)
 458 {
 459         struct filelist_entry *entry;
 460
 461         switch (cmd) {
 462         case CMD_PLAY:
 463                 browser_handle_enter(browser, c);
 464                 return true;
 465
 466         case CMD_SELECT:
 467                 if (browser_handle_select(browser, c) == 0)
 468                         /* continue and select next item... */
 469                         cmd = CMD_LIST_NEXT;
 470
 471                 /* call list_window_cmd to go to the next item */
 472                 break;
 473
 474         case CMD_ADD:
 475                 if (browser_handle_add(browser, c) == 0)
 476                         /* continue and select next item... */
 477                         cmd = CMD_LIST_NEXT;
 478
 479                 /* call list_window_cmd to go to the next item */
 480                 break;
 481
 482         case CMD_SELECT_ALL:
 483                 browser_handle_select_all(browser, c);
 484                 return true;
 485
 486         case CMD_LIST_FIND:
 487         case CMD_LIST_RFIND:
 488         case CMD_LIST_FIND_NEXT:
 489         case CMD_LIST_RFIND_NEXT:
 490                 screen_find(screen,
 491                             browser->lw, filelist_length(browser->filelist),
 492                             cmd, browser_lw_callback,
 493                             browser->filelist);
 494                 return true;
 495
 496 #ifdef HAVE_GETMOUSE
 497         case CMD_MOUSE_EVENT:
 498                 browser_handle_mouse_event(browser, c);
 499                 return true;
 500 #endif
 501
 502 #ifdef ENABLE_LYRICS_SCREEN
 503         case CMD_SCREEN_LYRICS:
 504                 entry = browser_get_selected(browser);
 505                 if (entry == NULL)
 506                         return false;
 507
 508                 if (entry->entity == NULL ||
 509                     entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 510                         return true;
 511
 512                 screen_lyrics_switch(c, entry->entity->info.song);
 513                 return true;
 514 #endif
 515
 516         default:
 517                 break;
 518         }
 519
 520         if (list_window_cmd(browser->lw, filelist_length(browser->filelist),
 521                             cmd))
 522                 return true;
 523
 524         return false;
 525 }