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 "ncmpc.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         D("screen_file.c> playlist_callback() [%d]\n", event);
  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(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, 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(basename(plf->path));
 151
 152 #ifdef USE_OLD_LAYOUT
 153                 g_snprintf(buf, BUFSIZE, "*%s*", filename);
 154 #else
 155                 g_snprintf(buf, BUFSIZE, "<Playlist> %s", filename);
 156 #endif
 157                 g_free(filename);
 158                 return buf;
 159         }
 160
 161         return "Error: Unknown entry!";
 162 }
 163
 164 /* chdir */
 165 int
 166 browser_change_directory(struct screen_browser *browser, mpdclient_t *c,
 167                          filelist_entry_t *entry, const char *new_path)
 168 {
 169         mpd_InfoEntity *entity = NULL;
 170         gchar *path = NULL;
 171
 172         if( entry!=NULL )
 173                 entity = entry->entity;
 174         else if( new_path==NULL )
 175                 return -1;
 176
 177         if( entity==NULL ) {
 178                 if( entry || 0==strcmp(new_path, "..") ) {
 179                         /* return to parent */
 180                         char *parent = g_path_get_dirname(browser->filelist->path);
 181                         if( strcmp(parent, ".") == 0 )
 182                                 parent[0] = '\0';
 183                         path = g_strdup(parent);
 184                         list_window_reset(browser->lw);
 185                         /* restore previous list window state */
 186                         list_window_pop_state(browser->lw_state, browser->lw);
 187                 } else {
 188                         /* entry==NULL, then new_path ("" is root) */
 189                         path = g_strdup(new_path);
 190                         list_window_reset(browser->lw);
 191                         /* restore first list window state (pop while returning true) */
 192                         while(list_window_pop_state(browser->lw_state, browser->lw));
 193                 }
 194         } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY) {
 195                 /* enter sub */
 196                 mpd_Directory *dir = entity->info.directory;
 197                 path = utf8_to_locale(dir->path);
 198                 /* save current list window state */
 199                 list_window_push_state(browser->lw_state, browser->lw);
 200         } else
 201                 return -1;
 202
 203         filelist_free(browser->filelist);
 204         browser->filelist = mpdclient_filelist_get(c, path);
 205         sync_highlights(c, browser->filelist);
 206         list_window_check_selected(browser->lw, filelist_length(browser->filelist));
 207         g_free(path);
 208         return 0;
 209 }
 210
 211 static int
 212 load_playlist(mpdclient_t *c, filelist_entry_t *entry)
 213 {
 214         mpd_InfoEntity *entity = entry->entity;
 215         mpd_PlaylistFile *plf = entity->info.playlistFile;
 216         char *filename = utf8_to_locale(plf->path);
 217
 218         if (mpdclient_cmd_load_playlist_utf8(c, plf->path) == 0)
 219                 screen_status_printf(_("Loading playlist %s..."), basename(filename));
 220         g_free(filename);
 221         return 0;
 222 }
 223
 224 static int
 225 enqueue_and_play(mpdclient_t *c, filelist_entry_t *entry)
 226 {
 227         int idx;
 228         mpd_InfoEntity *entity = entry->entity;
 229         mpd_Song *song = entity->info.song;
 230
 231         if (!(entry->flags & HIGHLIGHT)) {
 232                 if (mpdclient_cmd_add(c, song) == 0) {
 233                         char buf[BUFSIZE];
 234
 235                         entry->flags |= HIGHLIGHT;
 236                         strfsong(buf, BUFSIZE, LIST_FORMAT, song);
 237                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 238                         mpdclient_update(c); /* get song id */
 239                 } else
 240                         return -1;
 241         }
 242
 243         idx = playlist_get_index_from_file(c, song->file);
 244         mpdclient_cmd_play(c, idx);
 245         return 0;
 246 }
 247
 248 static struct filelist_entry *
 249 browser_get_selected(const struct screen_browser *browser)
 250 {
 251         if (browser->filelist == NULL ||
 252             browser->lw->selected >= filelist_length(browser->filelist))
 253                 return NULL;
 254
 255         return filelist_get(browser->filelist, browser->lw->selected);
 256 }
 257
 258 int
 259 browser_handle_enter(struct screen_browser *browser, mpdclient_t *c)
 260 {
 261         struct filelist_entry *entry = browser_get_selected(browser);
 262         mpd_InfoEntity *entity;
 263
 264         if( entry==NULL )
 265                 return -1;
 266
 267         entity = entry->entity;
 268         if (entity == NULL || entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY)
 269                 return browser_change_directory(browser, c, entry, NULL);
 270         else if (entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 271                 return load_playlist(c, entry);
 272         else if (entity->type == MPD_INFO_ENTITY_TYPE_SONG)
 273                 return enqueue_and_play(c, entry);
 274         return -1;
 275 }
 276
 277
 278 #ifdef USE_OLD_ADD
 279 /* NOTE - The add_directory functions should move to mpdclient.c */
 280 extern gint mpdclient_finish_command(mpdclient_t *c);
 281
 282 static int
 283 add_directory(mpdclient_t *c, char *dir)
 284 {
 285         mpd_InfoEntity *entity;
 286         GList *subdir_list = NULL;
 287         GList *list = NULL;
 288         char *dirname;
 289
 290         dirname = utf8_to_locale(dir);
 291         screen_status_printf(_("Adding directory %s...\n"), dirname);
 292         doupdate();
 293         g_free(dirname);
 294         dirname = NULL;
 295
 296         mpd_sendLsInfoCommand(c->connection, dir);
 297         mpd_sendCommandListBegin(c->connection);
 298         while( (entity=mpd_getNextInfoEntity(c->connection)) ) {
 299                 if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
 300                         mpd_Song *song = entity->info.song;
 301                         mpd_sendAddCommand(c->connection, song->file);
 302                         mpd_freeInfoEntity(entity);
 303                 } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
 304                         subdir_list = g_list_append(subdir_list, (gpointer) entity);
 305                 } else
 306                         mpd_freeInfoEntity(entity);
 307         }
 308         mpd_sendCommandListEnd(c->connection);
 309         mpdclient_finish_command(c);
 310         c->need_update = TRUE;
 311
 312         list = g_list_first(subdir_list);
 313         while( list!=NULL ) {
 314                 mpd_Directory *dir;
 315
 316                 entity = list->data;
 317                 dir = entity->info.directory;
 318                 add_directory(c, dir->path);
 319                 mpd_freeInfoEntity(entity);
 320                 list->data=NULL;
 321                 list=list->next;
 322         }
 323         g_list_free(subdir_list);
 324         return 0;
 325 }
 326 #endif
 327
 328 static int
 329 browser_select_entry(mpdclient_t *c, filelist_entry_t *entry,
 330                      gboolean toggle)
 331 {
 332         assert(entry != NULL);
 333         assert(entry->entity != NULL);
 334
 335         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 336                 return load_playlist(c, entry);
 337
 338         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY) {
 339                 mpd_Directory *dir = entry->entity->info.directory;
 340 #ifdef USE_OLD_ADD
 341                 add_directory(c, tmp);
 342 #else
 343                 if (mpdclient_cmd_add_path_utf8(c, dir->path) == 0) {
 344                         char *tmp = utf8_to_locale(dir->path);
 345
 346                         screen_status_printf(_("Adding \'%s\' to playlist\n"), tmp);
 347                         g_free(tmp);
 348                 }
 349 #endif
 350                 return 0;
 351         }
 352
 353         if (entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 354                 return -1;
 355
 356         assert(entry->entity->info.song != NULL);
 357
 358         if (!toggle || (entry->flags & HIGHLIGHT) == 0) {
 359                 mpd_Song *song = entry->entity->info.song;
 360
 361                 entry->flags |= HIGHLIGHT;
 362
 363                 if (mpdclient_cmd_add(c, song) == 0) {
 364                         char buf[BUFSIZE];
 365
 366                         strfsong(buf, BUFSIZE, LIST_FORMAT, song);
 367                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 368                 }
 369         } else {
 370                 /* remove song from playlist */
 371                 mpd_Song *song = entry->entity->info.song;
 372                 int idx;
 373
 374                 entry->flags &= ~HIGHLIGHT;
 375
 376                 while ((idx = playlist_get_index_from_file(c, song->file)) >=0)
 377                         mpdclient_cmd_delete(c, idx);
 378         }
 379
 380         return 0;
 381 }
 382
 383 int
 384 browser_handle_select(struct screen_browser *browser, mpdclient_t *c)
 385 {
 386         struct filelist_entry *entry = browser_get_selected(browser);
 387
 388         if (entry == NULL || entry->entity == NULL)
 389                 return -1;
 390
 391         return browser_select_entry(c, entry, TRUE);
 392 }
 393
 394 int
 395 browser_handle_add(struct screen_browser *browser, mpdclient_t *c)
 396 {
 397         struct filelist_entry *entry = browser_get_selected(browser);
 398
 399         if (entry == NULL || entry->entity == NULL)
 400                 return -1;
 401
 402         return browser_select_entry(c, entry, FALSE);
 403 }
 404
 405 void
 406 browser_handle_select_all(struct screen_browser *browser, mpdclient_t *c)
 407 {
 408         guint i;
 409
 410         if (browser->filelist == NULL)
 411                 return;
 412
 413         for (i = 0; i < filelist_length(browser->filelist); ++i) {
 414                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 415
 416                 if (entry != NULL && entry->entity != NULL)
 417                         browser_select_entry(c, entry, FALSE);
 418         }
 419 }
 420
 421 #ifdef HAVE_GETMOUSE
 422 int
 423 browser_handle_mouse_event(struct screen_browser *browser, mpdclient_t *c)
 424 {
 425         int row;
 426         unsigned prev_selected = browser->lw->selected;
 427         unsigned long bstate;
 428         int length;
 429
 430         if (browser->filelist)
 431                 length = filelist_length(browser->filelist);
 432         else
 433                 length = 0;
 434
 435         if (screen_get_mouse_event(c, &bstate, &row) ||
 436             list_window_mouse(browser->lw, length, bstate, row))
 437                 return 1;
 438
 439         browser->lw->selected = browser->lw->start + row;
 440         list_window_check_selected(browser->lw, length);
 441
 442         if( bstate & BUTTON1_CLICKED ) {
 443                 if (prev_selected == browser->lw->selected)
 444                         browser_handle_enter(browser, c);
 445         } else if (bstate & BUTTON3_CLICKED) {
 446                 if (prev_selected == browser->lw->selected)
 447                         browser_handle_select(browser, c);
 448         }
 449
 450         return 1;
 451 }
 452 #endif
 453
 454 bool
 455 browser_cmd(struct screen_browser *browser, struct screen *screen,
 456             struct mpdclient *c, command_t cmd)
 457 {
 458         struct filelist_entry *entry;
 459
 460         switch (cmd) {
 461         case CMD_PLAY:
 462                 browser_handle_enter(browser, c);
 463                 return true;
 464
 465         case CMD_SELECT:
 466                 if (browser_handle_select(browser, c) == 0)
 467                         /* continue and select next item... */
 468                         cmd = CMD_LIST_NEXT;
 469
 470                 /* call list_window_cmd to go to the next item */
 471                 break;
 472
 473         case CMD_ADD:
 474                 if (browser_handle_add(browser, c) == 0)
 475                         /* continue and select next item... */
 476                         cmd = CMD_LIST_NEXT;
 477
 478                 /* call list_window_cmd to go to the next item */
 479                 break;
 480
 481         case CMD_SELECT_ALL:
 482                 browser_handle_select_all(browser, c);
 483                 return true;
 484
 485         case CMD_LIST_FIND:
 486         case CMD_LIST_RFIND:
 487         case CMD_LIST_FIND_NEXT:
 488         case CMD_LIST_RFIND_NEXT:
 489                 screen_find(screen,
 490                             browser->lw, filelist_length(browser->filelist),
 491                             cmd, browser_lw_callback,
 492                             browser->filelist);
 493                 return true;
 494
 495         case CMD_MOUSE_EVENT:
 496                 browser_handle_mouse_event(browser, c);
 497                 return true;
 498
 499 #ifdef ENABLE_LYRICS_SCREEN
 500         case CMD_SCREEN_LYRICS:
 501                 entry = browser_get_selected(browser);
 502                 if (entry == NULL)
 503                         return false;
 504
 505                 if (entry->entity == NULL ||
 506                     entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 507                         return true;
 508
 509                 screen_lyrics_switch(c, entry->entity->info.song);
 510                 return true;
 511 #endif
 512
 513         default:
 514                 break;
 515         }
 516
 517         if (list_window_cmd(browser->lw, filelist_length(browser->filelist),
 518                             cmd))
 519                 return true;
 520
 521         return false;
 522 }