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 "support.h"
  24 #include "strfsong.h"
  25 #include "screen_utils.h"
  26 #include "gcc.h"
  27
  28 #include <string.h>
  29
  30 #define USE_OLD_LAYOUT
  31 #undef  USE_OLD_ADD
  32
  33 #define BUFSIZE 1024
  34
  35 #define HIGHLIGHT  (0x01)
  36
  37 /* clear the highlight flag for all items in the filelist */
  38 static void
  39 clear_highlights(mpdclient_filelist_t *fl)
  40 {
  41         guint i;
  42
  43         for (i = 0; i < filelist_length(fl); ++i) {
  44                 struct filelist_entry *entry = filelist_get(fl, i);
  45
  46                 entry->flags &= ~HIGHLIGHT;
  47         }
  48 }
  49
  50 /* change the highlight flag for a song */
  51 static void
  52 set_highlight(mpdclient_filelist_t *fl, mpd_Song *song, int highlight)
  53 {
  54         struct filelist_entry *entry = filelist_find_song(fl, song);
  55         mpd_InfoEntity *entity;
  56
  57         if (entry == NULL)
  58                 return;
  59
  60         entity = entry->entity;
  61         if (highlight)
  62                 entry->flags |= HIGHLIGHT;
  63         else
  64                 entry->flags &= ~HIGHLIGHT;
  65 }
  66
  67 /* sync highlight flags with playlist */
  68 void
  69 sync_highlights(mpdclient_t *c, mpdclient_filelist_t *fl)
  70 {
  71         guint i;
  72
  73         for (i = 0; i < filelist_length(fl); ++i) {
  74                 struct filelist_entry *entry = filelist_get(fl, i);
  75                 mpd_InfoEntity *entity = entry->entity;
  76
  77                 if ( entity && entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
  78                         mpd_Song *song = entity->info.song;
  79
  80                         if( playlist_get_index_from_file(c, song->file) >= 0 )
  81                                 entry->flags |= HIGHLIGHT;
  82                         else
  83                                 entry->flags &= ~HIGHLIGHT;
  84                 }
  85         }
  86 }
  87
  88 /* the playlist have been updated -> fix highlights */
  89 void
  90 browser_playlist_changed(struct screen_browser *browser, mpdclient_t *c,
  91                          int event, gpointer data)
  92 {
  93         if (browser->filelist == NULL)
  94                 return;
  95
  96         switch(event) {
  97         case PLAYLIST_EVENT_CLEAR:
  98                 clear_highlights(browser->filelist);
  99                 break;
 100         case PLAYLIST_EVENT_ADD:
 101                 set_highlight(browser->filelist, (mpd_Song *) data, 1);
 102                 break;
 103         case PLAYLIST_EVENT_DELETE:
 104                 set_highlight(browser->filelist, (mpd_Song *) data, 0);
 105                 break;
 106         case PLAYLIST_EVENT_MOVE:
 107                 break;
 108         default:
 109                 sync_highlights(c, browser->filelist);
 110                 break;
 111         }
 112 }
 113
 114 /* list_window callback */
 115 const char *
 116 browser_lw_callback(unsigned idx, int *highlight, void *data)
 117 {
 118         static char buf[BUFSIZE];
 119         mpdclient_filelist_t *fl = (mpdclient_filelist_t *) data;
 120         filelist_entry_t *entry;
 121         mpd_InfoEntity *entity;
 122
 123         if (idx >= filelist_length(fl))
 124                 return NULL;
 125
 126         entry = filelist_get(fl, idx);
 127         assert(entry != NULL);
 128
 129         entity = entry->entity;
 130         *highlight = (entry->flags & HIGHLIGHT);
 131
 132         if( entity == NULL )
 133                 return "[..]";
 134
 135         if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
 136                 mpd_Directory *dir = entity->info.directory;
 137                 char *directory = utf8_to_locale(basename(dir->path));
 138
 139                 g_snprintf(buf, BUFSIZE, "[%s]", directory);
 140                 g_free(directory);
 141                 return buf;
 142         } else if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
 143                 mpd_Song *song = entity->info.song;
 144
 145                 strfsong(buf, BUFSIZE, options.list_format, song);
 146                 return buf;
 147         } else if( entity->type==MPD_INFO_ENTITY_TYPE_PLAYLISTFILE ) {
 148                 mpd_PlaylistFile *plf = entity->info.playlistFile;
 149                 char *filename = utf8_to_locale(basename(plf->path));
 150
 151 #ifdef USE_OLD_LAYOUT
 152                 g_snprintf(buf, BUFSIZE, "*%s*", filename);
 153 #else
 154                 g_snprintf(buf, BUFSIZE, "<Playlist> %s", filename);
 155 #endif
 156                 g_free(filename);
 157                 return buf;
 158         }
 159
 160         return "Error: Unknown entry!";
 161 }
 162
 163 /* chdir */
 164 int
 165 browser_change_directory(struct screen_browser *browser, mpdclient_t *c,
 166                          filelist_entry_t *entry, const char *new_path)
 167 {
 168         mpd_InfoEntity *entity = NULL;
 169         gchar *path = NULL;
 170
 171         if( entry!=NULL )
 172                 entity = entry->entity;
 173         else if( new_path==NULL )
 174                 return -1;
 175
 176         if( entity==NULL ) {
 177                 if( entry || 0==strcmp(new_path, "..") ) {
 178                         /* return to parent */
 179                         char *parent = g_path_get_dirname(browser->filelist->path);
 180                         if( strcmp(parent, ".") == 0 )
 181                                 parent[0] = '\0';
 182                         path = g_strdup(parent);
 183                         list_window_reset(browser->lw);
 184                         /* restore previous list window state */
 185                         list_window_pop_state(browser->lw_state, browser->lw);
 186                 } else {
 187                         /* entry==NULL, then new_path ("" is root) */
 188                         path = g_strdup(new_path);
 189                         list_window_reset(browser->lw);
 190                         /* restore first list window state (pop while returning true) */
 191                         while(list_window_pop_state(browser->lw_state, browser->lw));
 192                 }
 193         } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY) {
 194                 /* enter sub */
 195                 mpd_Directory *dir = entity->info.directory;
 196                 path = utf8_to_locale(dir->path);
 197                 /* save current list window state */
 198                 list_window_push_state(browser->lw_state, browser->lw);
 199         } else
 200                 return -1;
 201
 202         filelist_free(browser->filelist);
 203         browser->filelist = mpdclient_filelist_get(c, path);
 204         sync_highlights(c, browser->filelist);
 205         list_window_check_selected(browser->lw, filelist_length(browser->filelist));
 206         g_free(path);
 207         return 0;
 208 }
 209
 210 static int
 211 load_playlist(mpdclient_t *c, filelist_entry_t *entry)
 212 {
 213         mpd_InfoEntity *entity = entry->entity;
 214         mpd_PlaylistFile *plf = entity->info.playlistFile;
 215         char *filename = utf8_to_locale(plf->path);
 216
 217         if (mpdclient_cmd_load_playlist_utf8(c, plf->path) == 0)
 218                 screen_status_printf(_("Loading playlist %s..."), basename(filename));
 219         g_free(filename);
 220         return 0;
 221 }
 222
 223 static int
 224 enqueue_and_play(mpdclient_t *c, filelist_entry_t *entry)
 225 {
 226         int idx;
 227         mpd_InfoEntity *entity = entry->entity;
 228         mpd_Song *song = entity->info.song;
 229
 230         if (!(entry->flags & HIGHLIGHT)) {
 231                 if (mpdclient_cmd_add(c, song) == 0) {
 232                         char buf[BUFSIZE];
 233
 234                         entry->flags |= HIGHLIGHT;
 235                         strfsong(buf, BUFSIZE, options.list_format, song);
 236                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 237                         mpdclient_update(c); /* get song id */
 238                 } else
 239                         return -1;
 240         }
 241
 242         idx = playlist_get_index_from_file(c, song->file);
 243         mpdclient_cmd_play(c, idx);
 244         return 0;
 245 }
 246
 247 static struct filelist_entry *
 248 browser_get_selected(const struct screen_browser *browser)
 249 {
 250         if (browser->filelist == NULL ||
 251             browser->lw->selected >= filelist_length(browser->filelist))
 252                 return NULL;
 253
 254         return filelist_get(browser->filelist, browser->lw->selected);
 255 }
 256
 257 static int
 258 browser_handle_enter(struct screen_browser *browser, mpdclient_t *c)
 259 {
 260         struct filelist_entry *entry = browser_get_selected(browser);
 261         mpd_InfoEntity *entity;
 262
 263         if( entry==NULL )
 264                 return -1;
 265
 266         entity = entry->entity;
 267         if (entity == NULL || entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY)
 268                 return browser_change_directory(browser, c, entry, NULL);
 269         else if (entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 270                 return load_playlist(c, entry);
 271         else if (entity->type == MPD_INFO_ENTITY_TYPE_SONG)
 272                 return enqueue_and_play(c, entry);
 273         return -1;
 274 }
 275
 276
 277 #ifdef USE_OLD_ADD
 278 /* NOTE - The add_directory functions should move to mpdclient.c */
 279 extern gint mpdclient_finish_command(mpdclient_t *c);
 280
 281 static int
 282 add_directory(mpdclient_t *c, char *dir)
 283 {
 284         mpd_InfoEntity *entity;
 285         GList *subdir_list = NULL;
 286         GList *list = NULL;
 287         char *dirname;
 288
 289         dirname = utf8_to_locale(dir);
 290         screen_status_printf(_("Adding directory %s...\n"), dirname);
 291         doupdate();
 292         g_free(dirname);
 293         dirname = NULL;
 294
 295         mpd_sendLsInfoCommand(c->connection, dir);
 296         mpd_sendCommandListBegin(c->connection);
 297         while( (entity=mpd_getNextInfoEntity(c->connection)) ) {
 298                 if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
 299                         mpd_Song *song = entity->info.song;
 300                         mpd_sendAddCommand(c->connection, song->file);
 301                         mpd_freeInfoEntity(entity);
 302                 } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
 303                         subdir_list = g_list_append(subdir_list, (gpointer) entity);
 304                 } else
 305                         mpd_freeInfoEntity(entity);
 306         }
 307         mpd_sendCommandListEnd(c->connection);
 308         mpdclient_finish_command(c);
 309         c->need_update = TRUE;
 310
 311         list = g_list_first(subdir_list);
 312         while( list!=NULL ) {
 313                 mpd_Directory *dir;
 314
 315                 entity = list->data;
 316                 dir = entity->info.directory;
 317                 add_directory(c, dir->path);
 318                 mpd_freeInfoEntity(entity);
 319                 list->data=NULL;
 320                 list=list->next;
 321         }
 322         g_list_free(subdir_list);
 323         return 0;
 324 }
 325 #endif
 326
 327 static int
 328 browser_select_entry(mpdclient_t *c, filelist_entry_t *entry,
 329                      gboolean toggle)
 330 {
 331         assert(entry != NULL);
 332         assert(entry->entity != NULL);
 333
 334         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 335                 return load_playlist(c, entry);
 336
 337         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY) {
 338                 mpd_Directory *dir = entry->entity->info.directory;
 339 #ifdef USE_OLD_ADD
 340                 add_directory(c, tmp);
 341 #else
 342                 if (mpdclient_cmd_add_path_utf8(c, dir->path) == 0) {
 343                         char *tmp = utf8_to_locale(dir->path);
 344
 345                         screen_status_printf(_("Adding \'%s\' to playlist\n"), tmp);
 346                         g_free(tmp);
 347                 }
 348 #endif
 349                 return 0;
 350         }
 351
 352         if (entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 353                 return -1;
 354
 355         assert(entry->entity->info.song != NULL);
 356
 357         if (!toggle || (entry->flags & HIGHLIGHT) == 0) {
 358                 mpd_Song *song = entry->entity->info.song;
 359
 360                 entry->flags |= HIGHLIGHT;
 361
 362                 if (mpdclient_cmd_add(c, song) == 0) {
 363                         char buf[BUFSIZE];
 364
 365                         strfsong(buf, BUFSIZE, options.list_format, song);
 366                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 367                 }
 368         } else {
 369                 /* remove song from playlist */
 370                 mpd_Song *song = entry->entity->info.song;
 371                 int idx;
 372
 373                 entry->flags &= ~HIGHLIGHT;
 374
 375                 while ((idx = playlist_get_index_from_file(c, song->file)) >=0)
 376                         mpdclient_cmd_delete(c, idx);
 377         }
 378
 379         return 0;
 380 }
 381
 382 static int
 383 browser_handle_select(struct screen_browser *browser, mpdclient_t *c)
 384 {
 385         struct filelist_entry *entry = browser_get_selected(browser);
 386
 387         if (entry == NULL || entry->entity == NULL)
 388                 return -1;
 389
 390         return browser_select_entry(c, entry, TRUE);
 391 }
 392
 393 static int
 394 browser_handle_add(struct screen_browser *browser, mpdclient_t *c)
 395 {
 396         struct filelist_entry *entry = browser_get_selected(browser);
 397
 398         if (entry == NULL || entry->entity == NULL)
 399                 return -1;
 400
 401         return browser_select_entry(c, entry, FALSE);
 402 }
 403
 404 static void
 405 browser_handle_select_all(struct screen_browser *browser, mpdclient_t *c)
 406 {
 407         guint i;
 408
 409         if (browser->filelist == NULL)
 410                 return;
 411
 412         for (i = 0; i < filelist_length(browser->filelist); ++i) {
 413                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 414
 415                 if (entry != NULL && entry->entity != NULL)
 416                         browser_select_entry(c, entry, FALSE);
 417         }
 418 }
 419
 420 #ifdef HAVE_GETMOUSE
 421 static int
 422 browser_handle_mouse_event(struct screen_browser *browser, mpdclient_t *c)
 423 {
 424         int row;
 425         unsigned prev_selected = browser->lw->selected;
 426         unsigned long bstate;
 427         int length;
 428
 429         if (browser->filelist)
 430                 length = filelist_length(browser->filelist);
 431         else
 432                 length = 0;
 433
 434         if (screen_get_mouse_event(c, &bstate, &row) ||
 435             list_window_mouse(browser->lw, length, bstate, row))
 436                 return 1;
 437
 438         browser->lw->selected = browser->lw->start + row;
 439         list_window_check_selected(browser->lw, length);
 440
 441         if( bstate & BUTTON1_CLICKED ) {
 442                 if (prev_selected == browser->lw->selected)
 443                         browser_handle_enter(browser, c);
 444         } else if (bstate & BUTTON3_CLICKED) {
 445                 if (prev_selected == browser->lw->selected)
 446                         browser_handle_select(browser, c);
 447         }
 448
 449         return 1;
 450 }
 451 #endif
 452
 453 bool
 454 browser_cmd(struct screen_browser *browser, struct screen *screen,
 455             struct mpdclient *c, command_t cmd)
 456 {
 457         struct filelist_entry *entry;
 458
 459         switch (cmd) {
 460         case CMD_PLAY:
 461                 browser_handle_enter(browser, c);
 462                 return true;
 463
 464         case CMD_SELECT:
 465                 if (browser_handle_select(browser, c) == 0)
 466                         /* continue and select next item... */
 467                         cmd = CMD_LIST_NEXT;
 468
 469                 /* call list_window_cmd to go to the next item */
 470                 break;
 471
 472         case CMD_ADD:
 473                 if (browser_handle_add(browser, c) == 0)
 474                         /* continue and select next item... */
 475                         cmd = CMD_LIST_NEXT;
 476
 477                 /* call list_window_cmd to go to the next item */
 478                 break;
 479
 480         case CMD_SELECT_ALL:
 481                 browser_handle_select_all(browser, c);
 482                 return true;
 483
 484         case CMD_LIST_FIND:
 485         case CMD_LIST_RFIND:
 486         case CMD_LIST_FIND_NEXT:
 487         case CMD_LIST_RFIND_NEXT:
 488                 screen_find(screen,
 489                             browser->lw, filelist_length(browser->filelist),
 490                             cmd, browser_lw_callback,
 491                             browser->filelist);
 492                 return true;
 493
 494 #ifdef HAVE_GETMOUSE
 495         case CMD_MOUSE_EVENT:
 496                 browser_handle_mouse_event(browser, c);
 497                 return true;
 498 #endif
 499
 500 #ifdef ENABLE_LYRICS_SCREEN
 501         case CMD_SCREEN_LYRICS:
 502                 entry = browser_get_selected(browser);
 503                 if (entry == NULL)
 504                         return false;
 505
 506                 if (entry->entity == NULL ||
 507                     entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 508                         return true;
 509
 510                 screen_lyrics_switch(c, entry->entity->info.song);
 511                 return true;
 512 #endif
 513
 514         default:
 515                 break;
 516         }
 517
 518         if (list_window_cmd(browser->lw, filelist_length(browser->filelist),
 519                             cmd))
 520                 return true;
 521
 522         return false;
 523 }