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 screen_browser_sync_highlights(struct filelist *fl,
  47                                const struct mpdclient_playlist *playlist)
  48 {
  49         guint i;
  50
  51         for (i = 0; i < filelist_length(fl); ++i) {
  52                 struct filelist_entry *entry = filelist_get(fl, i);
  53                 struct mpd_entity *entity = entry->entity;
  54
  55                 if (entity != NULL && mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
  56                         const struct mpd_song *song =
  57                                 mpd_entity_get_song(entity);
  58
  59                         if (playlist_get_index_from_same_song(playlist,
  60                                                               song) >= 0)
  61                                 entry->flags |= HIGHLIGHT;
  62                         else
  63                                 entry->flags &= ~HIGHLIGHT;
  64                 }
  65         }
  66 }
  67
  68 #endif
  69
  70 /* list_window callback */
  71 const char *
  72 browser_lw_callback(unsigned idx, bool *highlight, G_GNUC_UNUSED char **second_column, void *data)
  73 {
  74         struct filelist *fl = (struct filelist *) data;
  75         static char buf[BUFSIZE];
  76         struct filelist_entry *entry;
  77         struct mpd_entity *entity;
  78
  79         if (fl == NULL || idx >= filelist_length(fl))
  80                 return NULL;
  81
  82         entry = filelist_get(fl, idx);
  83         assert(entry != NULL);
  84
  85         entity = entry->entity;
  86 #ifndef NCMPC_MINI
  87         *highlight = (entry->flags & HIGHLIGHT) != 0;
  88 #else
  89         *highlight = false;
  90 #endif
  91
  92         if( entity == NULL )
  93                 return "[..]";
  94
  95         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_DIRECTORY) {
  96                 const struct mpd_directory *dir =
  97                         mpd_entity_get_directory(entity);
  98                 char *directory = utf8_to_locale(g_basename(mpd_directory_get_path(dir)));
  99
 100                 g_snprintf(buf, BUFSIZE, "[%s]", directory);
 101                 g_free(directory);
 102                 return buf;
 103         } else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
 104                 const struct mpd_song *song = mpd_entity_get_song(entity);
 105
 106                 strfsong(buf, BUFSIZE, options.list_format, song);
 107                 return buf;
 108         } else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST) {
 109                 const struct mpd_playlist *playlist =
 110                         mpd_entity_get_playlist(entity);
 111                 char *filename = utf8_to_locale(g_basename(mpd_playlist_get_path(playlist)));
 112
 113                 g_snprintf(buf, BUFSIZE, playlist_format, filename);
 114                 g_free(filename);
 115                 return buf;
 116         }
 117
 118         return "Error: Unknown entry!";
 119 }
 120
 121 static bool
 122 load_playlist(struct mpdclient *c, const struct mpd_playlist *playlist)
 123 {
 124         char *filename = utf8_to_locale(mpd_playlist_get_path(playlist));
 125
 126         if (mpdclient_cmd_load_playlist(c, mpd_playlist_get_path(playlist)) == 0)
 127                 screen_status_printf(_("Loading playlist %s..."),
 128                                      g_basename(filename));
 129         g_free(filename);
 130         return true;
 131 }
 132
 133 static bool
 134 enqueue_and_play(struct mpdclient *c, struct filelist_entry *entry)
 135 {
 136         const struct mpd_song *song = mpd_entity_get_song(entry->entity);
 137         int id;
 138
 139 #ifndef NCMPC_MINI
 140         if (!(entry->flags & HIGHLIGHT))
 141                 id = -1;
 142         else
 143 #endif
 144                 id = playlist_get_id_from_same_song(&c->playlist, song);
 145
 146         if (id < 0) {
 147                 char buf[BUFSIZE];
 148
 149                 id = mpd_run_add_id(c->connection, mpd_song_get_uri(song));
 150                 if (id < 0) {
 151                         mpdclient_handle_error(c);
 152                         return false;
 153                 }
 154
 155 #ifndef NCMPC_MINI
 156                 entry->flags |= HIGHLIGHT;
 157 #endif
 158                 strfsong(buf, BUFSIZE, options.list_format, song);
 159                 screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 160         }
 161
 162         if (!mpd_run_play_id(c->connection, id)) {
 163                 mpdclient_handle_error(c);
 164                 return false;
 165         }
 166
 167         return true;
 168 }
 169
 170 struct filelist_entry *
 171 browser_get_selected_entry(const struct screen_browser *browser)
 172 {
 173         if (browser->filelist == NULL ||
 174             browser->lw->selected_start < browser->lw->selected_end ||
 175             browser->lw->selected >= filelist_length(browser->filelist))
 176                 return NULL;
 177
 178         return filelist_get(browser->filelist, browser->lw->selected);
 179 }
 180
 181 static const struct mpd_entity *
 182 browser_get_selected_entity(const struct screen_browser *browser)
 183 {
 184         const struct filelist_entry *entry = browser_get_selected_entry(browser);
 185
 186         return entry != NULL
 187                 ? entry->entity
 188                 : NULL;
 189 }
 190
 191 static const struct mpd_song *
 192 browser_get_selected_song(const struct screen_browser *browser)
 193 {
 194         const struct mpd_entity *entity = browser_get_selected_entity(browser);
 195
 196         return entity != NULL &&
 197                 mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG
 198                 ? mpd_entity_get_song(entity)
 199                 : NULL;
 200 }
 201
 202 static struct filelist_entry *
 203 browser_get_index(const struct screen_browser *browser, unsigned i)
 204 {
 205         if (browser->filelist == NULL ||
 206             i >= filelist_length(browser->filelist))
 207                 return NULL;
 208
 209         return filelist_get(browser->filelist, i);
 210 }
 211
 212 static bool
 213 browser_handle_enter(struct screen_browser *browser, struct mpdclient *c)
 214 {
 215         struct filelist_entry *entry = browser_get_selected_entry(browser);
 216         struct mpd_entity *entity;
 217
 218         if (entry == NULL)
 219                 return false;
 220
 221         entity = entry->entity;
 222         if (entity == NULL)
 223                 return false;
 224
 225         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST)
 226                 return load_playlist(c, mpd_entity_get_playlist(entity));
 227         else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG)
 228                 return enqueue_and_play(c, entry);
 229         return false;
 230 }
 231
 232 static bool
 233 browser_select_entry(struct mpdclient *c, struct filelist_entry *entry,
 234                      G_GNUC_UNUSED gboolean toggle)
 235 {
 236         assert(entry != NULL);
 237         assert(entry->entity != NULL);
 238
 239         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_PLAYLIST)
 240                 return load_playlist(c, mpd_entity_get_playlist(entry->entity));
 241
 242         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_DIRECTORY) {
 243                 const struct mpd_directory *dir =
 244                         mpd_entity_get_directory(entry->entity);
 245
 246                 if (mpdclient_cmd_add_path(c, mpd_directory_get_path(dir)) == 0) {
 247                         char *tmp = utf8_to_locale(mpd_directory_get_path(dir));
 248
 249                         screen_status_printf(_("Adding \'%s\' to playlist"), tmp);
 250                         g_free(tmp);
 251                 }
 252
 253                 return true;
 254         }
 255
 256         if (mpd_entity_get_type(entry->entity) != MPD_ENTITY_TYPE_SONG)
 257                 return false;
 258
 259 #ifndef NCMPC_MINI
 260         if (!toggle || (entry->flags & HIGHLIGHT) == 0)
 261 #endif
 262         {
 263                 const struct mpd_song *song =
 264                         mpd_entity_get_song(entry->entity);
 265
 266 #ifndef NCMPC_MINI
 267                 entry->flags |= HIGHLIGHT;
 268 #endif
 269
 270                 if (mpdclient_cmd_add(c, song) == 0) {
 271                         char buf[BUFSIZE];
 272
 273                         strfsong(buf, BUFSIZE, options.list_format, song);
 274                         screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 275                 }
 276 #ifndef NCMPC_MINI
 277         } else {
 278                 /* remove song from playlist */
 279                 const struct mpd_song *song =
 280                         mpd_entity_get_song(entry->entity);
 281                 int idx;
 282
 283                 entry->flags &= ~HIGHLIGHT;
 284
 285                 while ((idx = playlist_get_index_from_same_song(&c->playlist,
 286                                                                 song)) >= 0)
 287                         mpdclient_cmd_delete(c, idx);
 288 #endif
 289         }
 290
 291         return true;
 292 }
 293
 294 static bool
 295 browser_handle_select(struct screen_browser *browser, struct mpdclient *c)
 296 {
 297         struct filelist_entry *entry;
 298
 299         if (browser->lw->range_selection) {
 300                 for (unsigned i = browser->lw->selected_start;
 301                          i <= browser->lw->selected_end; i++) {
 302                         entry = browser_get_index(browser, i);
 303
 304                         if (entry != NULL && entry->entity != NULL)
 305                                 browser_select_entry(c, entry, TRUE);
 306                 }
 307                 return false;
 308         } else {
 309                 entry = browser_get_selected_entry(browser);
 310
 311                 if (entry == NULL || entry->entity == NULL)
 312                         return false;
 313
 314                 return browser_select_entry(c, entry, TRUE);
 315         }
 316 }
 317
 318 static bool
 319 browser_handle_add(struct screen_browser *browser, struct mpdclient *c)
 320 {
 321         struct filelist_entry *entry;
 322
 323         if (browser->lw->range_selection) {
 324                 for (unsigned i = browser->lw->selected_start;
 325                          i <= browser->lw->selected_end; i++) {
 326                         entry = browser_get_index(browser, i);
 327
 328                         if (entry != NULL && entry->entity != NULL)
 329                                 browser_select_entry(c, entry, FALSE);
 330                 }
 331                 return false;
 332         } else {
 333                 entry = browser_get_selected_entry(browser);
 334
 335                 if (entry == NULL || entry->entity == NULL)
 336                         return false;
 337
 338                 return browser_select_entry(c, entry, FALSE);
 339         }
 340 }
 341
 342 static void
 343 browser_handle_select_all(struct screen_browser *browser, struct mpdclient *c)
 344 {
 345         guint i;
 346
 347         if (browser->filelist == NULL)
 348                 return;
 349
 350         for (i = 0; i < filelist_length(browser->filelist); ++i) {
 351                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 352
 353                 if (entry != NULL && entry->entity != NULL)
 354                         browser_select_entry(c, entry, FALSE);
 355         }
 356 }
 357
 358 #ifdef HAVE_GETMOUSE
 359 static int
 360 browser_handle_mouse_event(struct screen_browser *browser, struct mpdclient *c)
 361 {
 362         int row;
 363         unsigned prev_selected = browser->lw->selected;
 364         unsigned long bstate;
 365         int length;
 366
 367         if (browser->filelist)
 368                 length = filelist_length(browser->filelist);
 369         else
 370                 length = 0;
 371
 372         if (screen_get_mouse_event(c, &bstate, &row) ||
 373             list_window_mouse(browser->lw, length, bstate, row))
 374                 return 1;
 375
 376         browser->lw->selected = browser->lw->start + row;
 377         list_window_check_selected(browser->lw, length);
 378
 379         if( bstate & BUTTON1_CLICKED ) {
 380                 if (prev_selected == browser->lw->selected)
 381                         browser_handle_enter(browser, c);
 382         } else if (bstate & BUTTON3_CLICKED) {
 383                 if (prev_selected == browser->lw->selected)
 384                         browser_handle_select(browser, c);
 385         }
 386
 387         return 1;
 388 }
 389 #endif
 390
 391 bool
 392 browser_cmd(struct screen_browser *browser,
 393             struct mpdclient *c, command_t cmd)
 394 {
 395         const struct mpd_song *song;
 396
 397         if (browser->filelist == NULL)
 398                 return false;
 399
 400         switch (cmd) {
 401         case CMD_PLAY:
 402                 browser_handle_enter(browser, c);
 403                 return true;
 404
 405         case CMD_SELECT:
 406                 if (browser_handle_select(browser, c))
 407                         /* continue and select next item... */
 408                         cmd = CMD_LIST_NEXT;
 409
 410                 /* call list_window_cmd to go to the next item */
 411                 break;
 412
 413         case CMD_ADD:
 414                 if (browser_handle_add(browser, c))
 415                         /* continue and select next item... */
 416                         cmd = CMD_LIST_NEXT;
 417
 418                 /* call list_window_cmd to go to the next item */
 419                 break;
 420
 421         case CMD_SELECT_ALL:
 422                 browser_handle_select_all(browser, c);
 423                 return true;
 424
 425         case CMD_LIST_FIND:
 426         case CMD_LIST_RFIND:
 427         case CMD_LIST_FIND_NEXT:
 428         case CMD_LIST_RFIND_NEXT:
 429                 screen_find(browser->lw, filelist_length(browser->filelist),
 430                             cmd, browser_lw_callback,
 431                             browser->filelist);
 432                 return true;
 433         case CMD_LIST_JUMP:
 434                 screen_jump(browser->lw, browser_lw_callback, browser->filelist);
 435                 return true;
 436
 437 #ifdef HAVE_GETMOUSE
 438         case CMD_MOUSE_EVENT:
 439                 browser_handle_mouse_event(browser, c);
 440                 return true;
 441 #endif
 442
 443 #ifdef ENABLE_SONG_SCREEN
 444         case CMD_SCREEN_SONG:
 445                 song = browser_get_selected_song(browser);
 446                 if (song == NULL)
 447                         return false;
 448
 449                 screen_song_switch(c, song);
 450                 return true;
 451 #endif
 452
 453         case CMD_LOCATE:
 454                 song = browser_get_selected_song(browser);
 455                 if (song == NULL)
 456                         return false;
 457
 458                 screen_file_goto_song(c, song);
 459                 return true;
 460
 461 #ifdef ENABLE_LYRICS_SCREEN
 462         case CMD_SCREEN_LYRICS:
 463                 song = browser_get_selected_song(browser);
 464                 if (song == NULL)
 465                         return false;
 466
 467                 screen_lyrics_switch(c, song, false);
 468                 return true;
 469 #endif
 470         case CMD_SCREEN_SWAP:
 471                 screen_swap(c, browser_get_selected_song(browser));
 472                 return true;
 473
 474         default:
 475                 break;
 476         }
 477
 478         if (list_window_cmd(browser->lw, filelist_length(browser->filelist),
 479                             cmd))
 480                 return true;
 481
 482         return false;
 483 }