src/screen_browser.c

   1 /* ncmpc (Ncurses MPD Client)
   2  * (c) 2004-2009 The Music Player Daemon Project
   3  * Project homepage: http://musicpd.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
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "screen_browser.h"
  21 #include "screen_file.h"
  22 #include "i18n.h"
  23 #include "options.h"
  24 #include "charset.h"
  25 #include "strfsong.h"
  26 #include "screen_utils.h"
  27 #include "mpdclient.h"
  28 #include "filelist.h"
  29
  30 #include <mpd/client.h>
  31
  32 #include <string.h>
  33
  34 #define BUFSIZE 1024
  35
  36 #ifndef NCMPC_MINI
  37 #define HIGHLIGHT  (0x01)
  38 #endif
  39
  40 static const char playlist_format[] = "*%s*";
  41
  42 #ifndef NCMPC_MINI
  43
  44 /* sync highlight flags with playlist */
  45 void
  46 sync_highlights(struct mpdclient *c, struct filelist *fl)
  47 {
  48         guint i;
  49
  50         for (i = 0; i < filelist_length(fl); ++i) {
  51                 struct filelist_entry *entry = filelist_get(fl, i);
  52                 struct mpd_entity *entity = entry->entity;
  53
  54                 if (entity != NULL && mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
  55                         const struct mpd_song *song =
  56                                 mpd_entity_get_song(entity);
  57
  58                         if (playlist_get_index_from_same_song(&c->playlist,
  59                                                               song) >= 0)
  60                                 entry->flags |= HIGHLIGHT;
  61                         else
  62                                 entry->flags &= ~HIGHLIGHT;
  63                 }
  64         }
  65 }
  66
  67 #endif
  68
  69 /* list_window callback */
  70 const char *
  71 browser_lw_callback(unsigned idx, bool *highlight, G_GNUC_UNUSED char **second_column, void *data)
  72 {
  73         struct filelist *fl = (struct filelist *) data;
  74         static char buf[BUFSIZE];
  75         struct filelist_entry *entry;
  76         struct mpd_entity *entity;
  77
  78         if (fl == NULL || idx >= filelist_length(fl))
  79                 return NULL;
  80
  81         entry = filelist_get(fl, idx);
  82         assert(entry != NULL);
  83
  84         entity = entry->entity;
  85 #ifndef NCMPC_MINI
  86         *highlight = (entry->flags & HIGHLIGHT) != 0;
  87 #else
  88         *highlight = false;
  89 #endif
  90
  91         if( entity == NULL )
  92                 return "[..]";
  93
  94         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_DIRECTORY) {
  95                 const struct mpd_directory *dir =
  96                         mpd_entity_get_directory(entity);
  97                 char *directory = utf8_to_locale(g_basename(mpd_directory_get_path(dir)));
  98
  99                 g_snprintf(buf, BUFSIZE, "[%s]", directory);
 100                 g_free(directory);
 101                 return buf;
 102         } else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
 103                 const struct mpd_song *song = mpd_entity_get_song(entity);
 104
 105                 strfsong(buf, BUFSIZE, options.list_format, song);
 106                 return buf;
 107         } else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST) {
 108                 const struct mpd_playlist *playlist =
 109                         mpd_entity_get_playlist(entity);
 110                 char *filename = utf8_to_locale(g_basename(mpd_playlist_get_path(playlist)));
 111
 112                 g_snprintf(buf, BUFSIZE, playlist_format, filename);
 113                 g_free(filename);
 114                 return buf;
 115         }
 116
 117         return "Error: Unknown entry!";
 118 }
 119
 120 static bool
 121 load_playlist(struct mpdclient *c, const struct mpd_playlist *playlist)
 122 {
 123         char *filename = utf8_to_locale(mpd_playlist_get_path(playlist));
 124
 125         if (mpdclient_cmd_load_playlist(c, mpd_playlist_get_path(playlist)) == 0)
 126                 screen_status_printf(_("Loading playlist %s..."),
 127                                      g_basename(filename));
 128         g_free(filename);
 129         return true;
 130 }
 131
 132 static bool
 133 enqueue_and_play(struct mpdclient *c, struct filelist_entry *entry)
 134 {
 135         const struct mpd_song *song = mpd_entity_get_song(entry->entity);
 136         int id;
 137
 138 #ifndef NCMPC_MINI
 139         if (!(entry->flags & HIGHLIGHT))
 140                 id = -1;
 141         else
 142 #endif
 143                 id = playlist_get_id_from_same_song(&c->playlist, song);
 144
 145         if (id < 0) {
 146                 char buf[BUFSIZE];
 147
 148                 id = mpd_run_add_id(c->connection, mpd_song_get_uri(song));
 149                 if (id < 0) {
 150                         mpdclient_handle_error(c);
 151                         return false;
 152                 }
 153
 154 #ifndef NCMPC_MINI
 155                 entry->flags |= HIGHLIGHT;
 156 #endif
 157                 strfsong(buf, BUFSIZE, options.list_format, song);
 158                 screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 159         }
 160
 161         if (!mpd_run_play_id(c->connection, id)) {
 162                 mpdclient_handle_error(c);
 163                 return false;
 164         }
 165
 166         return true;
 167 }
 168
 169 struct filelist_entry *
 170 browser_get_selected_entry(const struct screen_browser *browser)
 171 {
 172         if (browser->filelist == NULL ||
 173             browser->lw->selected_start < browser->lw->selected_end ||
 174             browser->lw->selected >= filelist_length(browser->filelist))
 175                 return NULL;
 176
 177         return filelist_get(browser->filelist, browser->lw->selected);
 178 }
 179
 180 static const struct mpd_entity *
 181 browser_get_selected_entity(const struct screen_browser *browser)
 182 {
 183         const struct filelist_entry *entry = browser_get_selected_entry(browser);
 184
 185         return entry != NULL
 186                 ? entry->entity
 187                 : NULL;
 188 }
 189
 190 static const struct mpd_song *
 191 browser_get_selected_song(const struct screen_browser *browser)
 192 {
 193         const struct mpd_entity *entity = browser_get_selected_entity(browser);
 194
 195         return entity != NULL &&
 196                 mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG
 197                 ? mpd_entity_get_song(entity)
 198                 : NULL;
 199 }
 200
 201 static struct filelist_entry *
 202 browser_get_index(const struct screen_browser *browser, unsigned i)
 203 {
 204         if (browser->filelist == NULL ||
 205             i >= filelist_length(browser->filelist))
 206                 return NULL;
 207
 208         return filelist_get(browser->filelist, i);
 209 }
 210
 211 static bool
 212 browser_handle_enter(struct screen_browser *browser, struct mpdclient *c)
 213 {
 214         struct filelist_entry *entry = browser_get_selected_entry(browser);
 215         struct mpd_entity *entity;
 216
 217         if (entry == NULL)
 218                 return false;
 219
 220         entity = entry->entity;
 221         if (entity == NULL)
 222                 return false;
 223
 224         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST)
 225                 return load_playlist(c, mpd_entity_get_playlist(entity));
 226         else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG)
 227                 return enqueue_and_play(c, entry);
 228         return false;
 229 }
 230
 231 static bool
 232 browser_select_entry(struct mpdclient *c, struct filelist_entry *entry,
 233                      G_GNUC_UNUSED gboolean toggle)
 234 {
 235         assert(entry != NULL);
 236         assert(entry->entity != NULL);
 237
 238         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_PLAYLIST)
 239                 return load_playlist(c, mpd_entity_get_playlist(entry->entity));
 240
 241         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_DIRECTORY) {
 242                 const struct mpd_directory *dir =
 243                         mpd_entity_get_directory(entry->entity);
 244
 245                 if (mpdclient_cmd_add_path(c, mpd_directory_get_path(dir)) == 0) {
 246                         char *tmp = utf8_to_locale(mpd_directory_get_path(dir));
 247
 248                         screen_status_printf(_("Adding \'%s\' to playlist"), tmp);
 249                         g_free(tmp);
 250                 }
 251
 252                 return true;
 253         }
 254
 255         if (mpd_entity_get_type(entry->entity) != MPD_ENTITY_TYPE_SONG)
 256                 return false;
 257
 258 #ifndef NCMPC_MINI
 259         if (!toggle || (entry->flags & HIGHLIGHT) == 0)
 260 #endif
 261         {
 262                 const struct mpd_song *song =
 263                         mpd_entity_get_song(entry->entity);
 264
 265 #ifndef NCMPC_MINI
 266                 entry->flags |= HIGHLIGHT;
 267 #endif
 268
 269                 if (mpdclient_cmd_add(c, song) == 0) {
 270                         char buf[BUFSIZE];
 271
 272                         strfsong(buf, BUFSIZE, options.list_format, song);
 273                         screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 274                 }
 275 #ifndef NCMPC_MINI
 276         } else {
 277                 /* remove song from playlist */
 278                 const struct mpd_song *song =
 279                         mpd_entity_get_song(entry->entity);
 280                 int idx;
 281
 282                 entry->flags &= ~HIGHLIGHT;
 283
 284                 while ((idx = playlist_get_index_from_same_song(&c->playlist,
 285                                                                 song)) >= 0)
 286                         mpdclient_cmd_delete(c, idx);
 287 #endif
 288         }
 289
 290         return true;
 291 }
 292
 293 static bool
 294 browser_handle_select(struct screen_browser *browser, struct mpdclient *c)
 295 {
 296         struct filelist_entry *entry;
 297
 298         if (browser->lw->range_selection) {
 299                 for (unsigned i = browser->lw->selected_start;
 300                          i <= browser->lw->selected_end; i++) {
 301                         entry = browser_get_index(browser, i);
 302
 303                         if (entry != NULL && entry->entity != NULL)
 304                                 browser_select_entry(c, entry, TRUE);
 305                 }
 306                 return false;
 307         } else {
 308                 entry = browser_get_selected_entry(browser);
 309
 310                 if (entry == NULL || entry->entity == NULL)
 311                         return false;
 312
 313                 return browser_select_entry(c, entry, TRUE);
 314         }
 315 }
 316
 317 static bool
 318 browser_handle_add(struct screen_browser *browser, struct mpdclient *c)
 319 {
 320         struct filelist_entry *entry;
 321
 322         if (browser->lw->range_selection) {
 323                 for (unsigned i = browser->lw->selected_start;
 324                          i <= browser->lw->selected_end; i++) {
 325                         entry = browser_get_index(browser, i);
 326
 327                         if (entry != NULL && entry->entity != NULL)
 328                                 browser_select_entry(c, entry, FALSE);
 329                 }
 330                 return false;
 331         } else {
 332                 entry = browser_get_selected_entry(browser);
 333
 334                 if (entry == NULL || entry->entity == NULL)
 335                         return false;
 336
 337                 return browser_select_entry(c, entry, FALSE);
 338         }
 339 }
 340
 341 static void
 342 browser_handle_select_all(struct screen_browser *browser, struct mpdclient *c)
 343 {
 344         guint i;
 345
 346         if (browser->filelist == NULL)
 347                 return;
 348
 349         for (i = 0; i < filelist_length(browser->filelist); ++i) {
 350                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 351
 352                 if (entry != NULL && entry->entity != NULL)
 353                         browser_select_entry(c, entry, FALSE);
 354         }
 355 }
 356
 357 #ifdef HAVE_GETMOUSE
 358 static int
 359 browser_handle_mouse_event(struct screen_browser *browser, struct mpdclient *c)
 360 {
 361         int row;
 362         unsigned prev_selected = browser->lw->selected;
 363         unsigned long bstate;
 364         int length;
 365
 366         if (browser->filelist)
 367                 length = filelist_length(browser->filelist);
 368         else
 369                 length = 0;
 370
 371         if (screen_get_mouse_event(c, &bstate, &row) ||
 372             list_window_mouse(browser->lw, length, bstate, row))
 373                 return 1;
 374
 375         browser->lw->selected = browser->lw->start + row;
 376         list_window_check_selected(browser->lw, length);
 377
 378         if( bstate & BUTTON1_CLICKED ) {
 379                 if (prev_selected == browser->lw->selected)
 380                         browser_handle_enter(browser, c);
 381         } else if (bstate & BUTTON3_CLICKED) {
 382                 if (prev_selected == browser->lw->selected)
 383                         browser_handle_select(browser, c);
 384         }
 385
 386         return 1;
 387 }
 388 #endif
 389
 390 bool
 391 browser_cmd(struct screen_browser *browser,
 392             struct mpdclient *c, command_t cmd)
 393 {
 394         const struct mpd_song *song;
 395
 396         if (browser->filelist == NULL)
 397                 return false;
 398
 399         switch (cmd) {
 400         case CMD_PLAY:
 401                 browser_handle_enter(browser, c);
 402                 return true;
 403
 404         case CMD_SELECT:
 405                 if (browser_handle_select(browser, c))
 406                         /* continue and select next item... */
 407                         cmd = CMD_LIST_NEXT;
 408
 409                 /* call list_window_cmd to go to the next item */
 410                 break;
 411
 412         case CMD_ADD:
 413                 if (browser_handle_add(browser, c))
 414                         /* continue and select next item... */
 415                         cmd = CMD_LIST_NEXT;
 416
 417                 /* call list_window_cmd to go to the next item */
 418                 break;
 419
 420         case CMD_SELECT_ALL:
 421                 browser_handle_select_all(browser, c);
 422                 return true;
 423
 424         case CMD_LIST_FIND:
 425         case CMD_LIST_RFIND:
 426         case CMD_LIST_FIND_NEXT:
 427         case CMD_LIST_RFIND_NEXT:
 428                 screen_find(browser->lw, filelist_length(browser->filelist),
 429                             cmd, browser_lw_callback,
 430                             browser->filelist);
 431                 return true;
 432         case CMD_LIST_JUMP:
 433                 screen_jump(browser->lw, browser_lw_callback, browser->filelist);
 434                 return true;
 435
 436 #ifdef HAVE_GETMOUSE
 437         case CMD_MOUSE_EVENT:
 438                 browser_handle_mouse_event(browser, c);
 439                 return true;
 440 #endif
 441
 442 #ifdef ENABLE_SONG_SCREEN
 443         case CMD_SCREEN_SONG:
 444                 song = browser_get_selected_song(browser);
 445                 if (song == NULL)
 446                         return false;
 447
 448                 screen_song_switch(c, song);
 449                 return true;
 450 #endif
 451
 452         case CMD_LOCATE:
 453                 song = browser_get_selected_song(browser);
 454                 if (song == NULL)
 455                         return false;
 456
 457                 screen_file_goto_song(c, song);
 458                 return true;
 459
 460 #ifdef ENABLE_LYRICS_SCREEN
 461         case CMD_SCREEN_LYRICS:
 462                 song = browser_get_selected_song(browser);
 463                 if (song == NULL)
 464                         return false;
 465
 466                 screen_lyrics_switch(c, song, false);
 467                 return true;
 468 #endif
 469         case CMD_SCREEN_SWAP:
 470                 screen_swap(c, browser_get_selected_song(browser));
 471                 return true;
 472
 473         default:
 474                 break;
 475         }
 476
 477         if (list_window_cmd(browser->lw, filelist_length(browser->filelist),
 478                             cmd))
 479                 return true;
 480
 481         return false;
 482 }