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 "screen_song.h"
  23 #include "screen_lyrics.h"
  24 #include "screen_message.h"
  25 #include "screen.h"
  26 #include "i18n.h"
  27 #include "options.h"
  28 #include "charset.h"
  29 #include "strfsong.h"
  30 #include "screen_utils.h"
  31 #include "mpdclient.h"
  32 #include "filelist.h"
  33
  34 #include <mpd/client.h>
  35
  36 #include <string.h>
  37
  38 #define BUFSIZE 1024
  39
  40 #ifndef NCMPC_MINI
  41 #define HIGHLIGHT  (0x01)
  42 #endif
  43
  44 static const char playlist_format[] = "*%s*";
  45
  46 #ifndef NCMPC_MINI
  47
  48 /* sync highlight flags with playlist */
  49 void
  50 screen_browser_sync_highlights(struct filelist *fl,
  51                                const struct mpdclient_playlist *playlist)
  52 {
  53         guint i;
  54
  55         for (i = 0; i < filelist_length(fl); ++i) {
  56                 struct filelist_entry *entry = filelist_get(fl, i);
  57                 const struct mpd_entity *entity = entry->entity;
  58
  59                 if (entity != NULL && mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
  60                         const struct mpd_song *song =
  61                                 mpd_entity_get_song(entity);
  62
  63                         if (playlist_get_index_from_same_song(playlist,
  64                                                               song) >= 0)
  65                                 entry->flags |= HIGHLIGHT;
  66                         else
  67                                 entry->flags &= ~HIGHLIGHT;
  68                 }
  69         }
  70 }
  71
  72 #endif
  73
  74 /* list_window callback */
  75 const char *
  76 browser_lw_callback(unsigned idx, bool *highlight, G_GNUC_UNUSED char **second_column, void *data)
  77 {
  78         const struct filelist *fl = (const struct filelist *) data;
  79         static char buf[BUFSIZE];
  80         const struct filelist_entry *entry;
  81         const struct mpd_entity *entity;
  82
  83         if (fl == NULL || idx >= filelist_length(fl))
  84                 return NULL;
  85
  86         entry = filelist_get(fl, idx);
  87         assert(entry != NULL);
  88
  89         entity = entry->entity;
  90 #ifndef NCMPC_MINI
  91         *highlight = (entry->flags & HIGHLIGHT) != 0;
  92 #else
  93         *highlight = false;
  94 #endif
  95
  96         if( entity == NULL )
  97                 return "[..]";
  98
  99         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_DIRECTORY) {
 100                 const struct mpd_directory *dir =
 101                         mpd_entity_get_directory(entity);
 102                 char *directory = utf8_to_locale(g_basename(mpd_directory_get_path(dir)));
 103
 104                 g_snprintf(buf, BUFSIZE, "[%s]", directory);
 105                 g_free(directory);
 106                 return buf;
 107         } else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG) {
 108                 const struct mpd_song *song = mpd_entity_get_song(entity);
 109
 110                 strfsong(buf, BUFSIZE, options.list_format, song);
 111                 return buf;
 112         } else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST) {
 113                 const struct mpd_playlist *playlist =
 114                         mpd_entity_get_playlist(entity);
 115                 char *filename = utf8_to_locale(g_basename(mpd_playlist_get_path(playlist)));
 116
 117                 g_snprintf(buf, BUFSIZE, playlist_format, filename);
 118                 g_free(filename);
 119                 return buf;
 120         }
 121
 122         return "Error: Unknown entry!";
 123 }
 124
 125 static bool
 126 load_playlist(struct mpdclient *c, const struct mpd_playlist *playlist)
 127 {
 128         char *filename = utf8_to_locale(mpd_playlist_get_path(playlist));
 129
 130         if (mpdclient_cmd_load_playlist(c, mpd_playlist_get_path(playlist)) == 0)
 131                 screen_status_printf(_("Loading playlist %s..."),
 132                                      g_basename(filename));
 133         g_free(filename);
 134         return true;
 135 }
 136
 137 static bool
 138 enqueue_and_play(struct mpdclient *c, struct filelist_entry *entry)
 139 {
 140         const struct mpd_song *song = mpd_entity_get_song(entry->entity);
 141         int id;
 142
 143 #ifndef NCMPC_MINI
 144         if (!(entry->flags & HIGHLIGHT))
 145                 id = -1;
 146         else
 147 #endif
 148                 id = playlist_get_id_from_same_song(&c->playlist, song);
 149
 150         if (id < 0) {
 151                 char buf[BUFSIZE];
 152
 153                 id = mpd_run_add_id(c->connection, mpd_song_get_uri(song));
 154                 if (id < 0) {
 155                         mpdclient_handle_error(c);
 156                         return false;
 157                 }
 158
 159 #ifndef NCMPC_MINI
 160                 entry->flags |= HIGHLIGHT;
 161 #endif
 162                 strfsong(buf, BUFSIZE, options.list_format, song);
 163                 screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 164         }
 165
 166         if (!mpd_run_play_id(c->connection, id)) {
 167                 mpdclient_handle_error(c);
 168                 return false;
 169         }
 170
 171         return true;
 172 }
 173
 174 struct filelist_entry *
 175 browser_get_selected_entry(const struct screen_browser *browser)
 176 {
 177         if (browser->filelist == NULL ||
 178             browser->lw->selected_start < browser->lw->selected_end ||
 179             browser->lw->selected >= filelist_length(browser->filelist))
 180                 return NULL;
 181
 182         return filelist_get(browser->filelist, browser->lw->selected);
 183 }
 184
 185 static const struct mpd_entity *
 186 browser_get_selected_entity(const struct screen_browser *browser)
 187 {
 188         const struct filelist_entry *entry = browser_get_selected_entry(browser);
 189
 190         return entry != NULL
 191                 ? entry->entity
 192                 : NULL;
 193 }
 194
 195 static const struct mpd_song *
 196 browser_get_selected_song(const struct screen_browser *browser)
 197 {
 198         const struct mpd_entity *entity = browser_get_selected_entity(browser);
 199
 200         return entity != NULL &&
 201                 mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG
 202                 ? mpd_entity_get_song(entity)
 203                 : NULL;
 204 }
 205
 206 static struct filelist_entry *
 207 browser_get_index(const struct screen_browser *browser, unsigned i)
 208 {
 209         if (browser->filelist == NULL ||
 210             i >= filelist_length(browser->filelist))
 211                 return NULL;
 212
 213         return filelist_get(browser->filelist, i);
 214 }
 215
 216 static bool
 217 browser_handle_enter(struct screen_browser *browser, struct mpdclient *c)
 218 {
 219         struct filelist_entry *entry = browser_get_selected_entry(browser);
 220         struct mpd_entity *entity;
 221
 222         if (entry == NULL)
 223                 return false;
 224
 225         entity = entry->entity;
 226         if (entity == NULL)
 227                 return false;
 228
 229         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST)
 230                 return load_playlist(c, mpd_entity_get_playlist(entity));
 231         else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG)
 232                 return enqueue_and_play(c, entry);
 233         return false;
 234 }
 235
 236 static bool
 237 browser_select_entry(struct mpdclient *c, struct filelist_entry *entry,
 238                      G_GNUC_UNUSED gboolean toggle)
 239 {
 240         assert(entry != NULL);
 241         assert(entry->entity != NULL);
 242
 243         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_PLAYLIST)
 244                 return load_playlist(c, mpd_entity_get_playlist(entry->entity));
 245
 246         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_DIRECTORY) {
 247                 const struct mpd_directory *dir =
 248                         mpd_entity_get_directory(entry->entity);
 249
 250                 if (mpdclient_cmd_add_path(c, mpd_directory_get_path(dir)) == 0) {
 251                         char *tmp = utf8_to_locale(mpd_directory_get_path(dir));
 252
 253                         screen_status_printf(_("Adding \'%s\' to playlist"), tmp);
 254                         g_free(tmp);
 255                 }
 256
 257                 return true;
 258         }
 259
 260         if (mpd_entity_get_type(entry->entity) != MPD_ENTITY_TYPE_SONG)
 261                 return false;
 262
 263 #ifndef NCMPC_MINI
 264         if (!toggle || (entry->flags & HIGHLIGHT) == 0)
 265 #endif
 266         {
 267                 const struct mpd_song *song =
 268                         mpd_entity_get_song(entry->entity);
 269
 270 #ifndef NCMPC_MINI
 271                 entry->flags |= HIGHLIGHT;
 272 #endif
 273
 274                 if (mpdclient_cmd_add(c, song) == 0) {
 275                         char buf[BUFSIZE];
 276
 277                         strfsong(buf, BUFSIZE, options.list_format, song);
 278                         screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 279                 }
 280 #ifndef NCMPC_MINI
 281         } else {
 282                 /* remove song from playlist */
 283                 const struct mpd_song *song =
 284                         mpd_entity_get_song(entry->entity);
 285                 int idx;
 286
 287                 entry->flags &= ~HIGHLIGHT;
 288
 289                 while ((idx = playlist_get_index_from_same_song(&c->playlist,
 290                                                                 song)) >= 0)
 291                         mpdclient_cmd_delete(c, idx);
 292 #endif
 293         }
 294
 295         return true;
 296 }
 297
 298 static bool
 299 browser_handle_select(struct screen_browser *browser, struct mpdclient *c)
 300 {
 301         struct filelist_entry *entry;
 302
 303         if (browser->lw->range_selection) {
 304                 for (unsigned i = browser->lw->selected_start;
 305                          i <= browser->lw->selected_end; i++) {
 306                         entry = browser_get_index(browser, i);
 307
 308                         if (entry != NULL && entry->entity != NULL)
 309                                 browser_select_entry(c, entry, TRUE);
 310                 }
 311                 return false;
 312         } else {
 313                 entry = browser_get_selected_entry(browser);
 314
 315                 if (entry == NULL || entry->entity == NULL)
 316                         return false;
 317
 318                 return browser_select_entry(c, entry, TRUE);
 319         }
 320 }
 321
 322 static bool
 323 browser_handle_add(struct screen_browser *browser, struct mpdclient *c)
 324 {
 325         struct filelist_entry *entry;
 326
 327         if (browser->lw->range_selection) {
 328                 for (unsigned i = browser->lw->selected_start;
 329                          i <= browser->lw->selected_end; i++) {
 330                         entry = browser_get_index(browser, i);
 331
 332                         if (entry != NULL && entry->entity != NULL)
 333                                 browser_select_entry(c, entry, FALSE);
 334                 }
 335                 return false;
 336         } else {
 337                 entry = browser_get_selected_entry(browser);
 338
 339                 if (entry == NULL || entry->entity == NULL)
 340                         return false;
 341
 342                 return browser_select_entry(c, entry, FALSE);
 343         }
 344 }
 345
 346 static void
 347 browser_handle_select_all(struct screen_browser *browser, struct mpdclient *c)
 348 {
 349         guint i;
 350
 351         if (browser->filelist == NULL)
 352                 return;
 353
 354         for (i = 0; i < filelist_length(browser->filelist); ++i) {
 355                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 356
 357                 if (entry != NULL && entry->entity != NULL)
 358                         browser_select_entry(c, entry, FALSE);
 359         }
 360 }
 361
 362 #ifdef HAVE_GETMOUSE
 363 static int
 364 browser_handle_mouse_event(struct screen_browser *browser, struct mpdclient *c)
 365 {
 366         int row;
 367         unsigned prev_selected = browser->lw->selected;
 368         unsigned long bstate;
 369         int length;
 370
 371         if (browser->filelist)
 372                 length = filelist_length(browser->filelist);
 373         else
 374                 length = 0;
 375
 376         if (screen_get_mouse_event(c, &bstate, &row) ||
 377             list_window_mouse(browser->lw, length, bstate, row))
 378                 return 1;
 379
 380         browser->lw->selected = browser->lw->start + row;
 381         list_window_check_selected(browser->lw, length);
 382
 383         if( bstate & BUTTON1_CLICKED ) {
 384                 if (prev_selected == browser->lw->selected)
 385                         browser_handle_enter(browser, c);
 386         } else if (bstate & BUTTON3_CLICKED) {
 387                 if (prev_selected == browser->lw->selected)
 388                         browser_handle_select(browser, c);
 389         }
 390
 391         return 1;
 392 }
 393 #endif
 394
 395 bool
 396 browser_cmd(struct screen_browser *browser,
 397             struct mpdclient *c, command_t cmd)
 398 {
 399         const struct mpd_song *song;
 400
 401         if (browser->filelist == NULL)
 402                 return false;
 403
 404         switch (cmd) {
 405         case CMD_PLAY:
 406                 browser_handle_enter(browser, c);
 407                 return true;
 408
 409         case CMD_SELECT:
 410                 if (browser_handle_select(browser, c))
 411                         /* continue and select next item... */
 412                         cmd = CMD_LIST_NEXT;
 413
 414                 /* call list_window_cmd to go to the next item */
 415                 break;
 416
 417         case CMD_ADD:
 418                 if (browser_handle_add(browser, c))
 419                         /* continue and select next item... */
 420                         cmd = CMD_LIST_NEXT;
 421
 422                 /* call list_window_cmd to go to the next item */
 423                 break;
 424
 425         case CMD_SELECT_ALL:
 426                 browser_handle_select_all(browser, c);
 427                 return true;
 428
 429         case CMD_LIST_FIND:
 430         case CMD_LIST_RFIND:
 431         case CMD_LIST_FIND_NEXT:
 432         case CMD_LIST_RFIND_NEXT:
 433                 screen_find(browser->lw, filelist_length(browser->filelist),
 434                             cmd, browser_lw_callback,
 435                             browser->filelist);
 436                 return true;
 437         case CMD_LIST_JUMP:
 438                 screen_jump(browser->lw, browser_lw_callback, browser->filelist);
 439                 return true;
 440
 441 #ifdef HAVE_GETMOUSE
 442         case CMD_MOUSE_EVENT:
 443                 browser_handle_mouse_event(browser, c);
 444                 return true;
 445 #endif
 446
 447 #ifdef ENABLE_SONG_SCREEN
 448         case CMD_SCREEN_SONG:
 449                 song = browser_get_selected_song(browser);
 450                 if (song == NULL)
 451                         return false;
 452
 453                 screen_song_switch(c, song);
 454                 return true;
 455 #endif
 456
 457         case CMD_LOCATE:
 458                 song = browser_get_selected_song(browser);
 459                 if (song == NULL)
 460                         return false;
 461
 462                 screen_file_goto_song(c, song);
 463                 return true;
 464
 465 #ifdef ENABLE_LYRICS_SCREEN
 466         case CMD_SCREEN_LYRICS:
 467                 song = browser_get_selected_song(browser);
 468                 if (song == NULL)
 469                         return false;
 470
 471                 screen_lyrics_switch(c, song, false);
 472                 return true;
 473 #endif
 474         case CMD_SCREEN_SWAP:
 475                 screen_swap(c, browser_get_selected_song(browser));
 476                 return true;
 477
 478         default:
 479                 break;
 480         }
 481
 482         if (list_window_cmd(browser->lw, filelist_length(browser->filelist),
 483                             cmd))
 484                 return true;
 485
 486         return false;
 487 }