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