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 (mpd_run_load(c->connection, mpd_playlist_get_path(playlist))) {
 131                 screen_status_printf(_("Loading playlist %s..."),
 132                                      g_basename(filename));
 133                 c->events |= MPD_IDLE_QUEUE;
 134         } else
 135                 mpdclient_handle_error(c);
 136
 137         g_free(filename);
 138         return true;
 139 }
 140
 141 static bool
 142 enqueue_and_play(struct mpdclient *c, struct filelist_entry *entry)
 143 {
 144         const struct mpd_song *song = mpd_entity_get_song(entry->entity);
 145         int id;
 146
 147 #ifndef NCMPC_MINI
 148         if (!(entry->flags & HIGHLIGHT))
 149                 id = -1;
 150         else
 151 #endif
 152                 id = playlist_get_id_from_same_song(&c->playlist, song);
 153
 154         if (id < 0) {
 155                 char buf[BUFSIZE];
 156
 157                 id = mpd_run_add_id(c->connection, mpd_song_get_uri(song));
 158                 if (id < 0) {
 159                         mpdclient_handle_error(c);
 160                         return false;
 161                 }
 162
 163 #ifndef NCMPC_MINI
 164                 entry->flags |= HIGHLIGHT;
 165 #endif
 166                 strfsong(buf, BUFSIZE, options.list_format, song);
 167                 screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 168         }
 169
 170         if (!mpd_run_play_id(c->connection, id)) {
 171                 mpdclient_handle_error(c);
 172                 return false;
 173         }
 174
 175         return true;
 176 }
 177
 178 struct filelist_entry *
 179 browser_get_selected_entry(const struct screen_browser *browser)
 180 {
 181         if (browser->filelist == NULL ||
 182             browser->lw->selected_start < browser->lw->selected_end ||
 183             browser->lw->selected >= filelist_length(browser->filelist))
 184                 return NULL;
 185
 186         return filelist_get(browser->filelist, browser->lw->selected);
 187 }
 188
 189 static const struct mpd_entity *
 190 browser_get_selected_entity(const struct screen_browser *browser)
 191 {
 192         const struct filelist_entry *entry = browser_get_selected_entry(browser);
 193
 194         return entry != NULL
 195                 ? entry->entity
 196                 : NULL;
 197 }
 198
 199 static const struct mpd_song *
 200 browser_get_selected_song(const struct screen_browser *browser)
 201 {
 202         const struct mpd_entity *entity = browser_get_selected_entity(browser);
 203
 204         return entity != NULL &&
 205                 mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG
 206                 ? mpd_entity_get_song(entity)
 207                 : NULL;
 208 }
 209
 210 static struct filelist_entry *
 211 browser_get_index(const struct screen_browser *browser, unsigned i)
 212 {
 213         if (browser->filelist == NULL ||
 214             i >= filelist_length(browser->filelist))
 215                 return NULL;
 216
 217         return filelist_get(browser->filelist, i);
 218 }
 219
 220 static bool
 221 browser_handle_enter(struct screen_browser *browser, struct mpdclient *c)
 222 {
 223         struct filelist_entry *entry = browser_get_selected_entry(browser);
 224         struct mpd_entity *entity;
 225
 226         if (entry == NULL)
 227                 return false;
 228
 229         entity = entry->entity;
 230         if (entity == NULL)
 231                 return false;
 232
 233         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST)
 234                 return load_playlist(c, mpd_entity_get_playlist(entity));
 235         else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG)
 236                 return enqueue_and_play(c, entry);
 237         return false;
 238 }
 239
 240 static bool
 241 browser_select_entry(struct mpdclient *c, struct filelist_entry *entry,
 242                      G_GNUC_UNUSED gboolean toggle)
 243 {
 244         assert(entry != NULL);
 245         assert(entry->entity != NULL);
 246
 247         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_PLAYLIST)
 248                 return load_playlist(c, mpd_entity_get_playlist(entry->entity));
 249
 250         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_DIRECTORY) {
 251                 const struct mpd_directory *dir =
 252                         mpd_entity_get_directory(entry->entity);
 253
 254                 if (mpdclient_cmd_add_path(c, mpd_directory_get_path(dir))) {
 255                         char *tmp = utf8_to_locale(mpd_directory_get_path(dir));
 256
 257                         screen_status_printf(_("Adding \'%s\' to playlist"), tmp);
 258                         g_free(tmp);
 259                 }
 260
 261                 return true;
 262         }
 263
 264         if (mpd_entity_get_type(entry->entity) != MPD_ENTITY_TYPE_SONG)
 265                 return false;
 266
 267 #ifndef NCMPC_MINI
 268         if (!toggle || (entry->flags & HIGHLIGHT) == 0)
 269 #endif
 270         {
 271                 const struct mpd_song *song =
 272                         mpd_entity_get_song(entry->entity);
 273
 274 #ifndef NCMPC_MINI
 275                 entry->flags |= HIGHLIGHT;
 276 #endif
 277
 278                 if (mpdclient_cmd_add(c, song)) {
 279                         char buf[BUFSIZE];
 280
 281                         strfsong(buf, BUFSIZE, options.list_format, song);
 282                         screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 283                 }
 284 #ifndef NCMPC_MINI
 285         } else {
 286                 /* remove song from playlist */
 287                 const struct mpd_song *song =
 288                         mpd_entity_get_song(entry->entity);
 289                 int idx;
 290
 291                 entry->flags &= ~HIGHLIGHT;
 292
 293                 while ((idx = playlist_get_index_from_same_song(&c->playlist,
 294                                                                 song)) >= 0)
 295                         mpdclient_cmd_delete(c, idx);
 296 #endif
 297         }
 298
 299         return true;
 300 }
 301
 302 static bool
 303 browser_handle_select(struct screen_browser *browser, struct mpdclient *c)
 304 {
 305         struct filelist_entry *entry;
 306
 307         if (browser->lw->range_selection) {
 308                 for (unsigned i = browser->lw->selected_start;
 309                          i <= browser->lw->selected_end; i++) {
 310                         entry = browser_get_index(browser, i);
 311
 312                         if (entry != NULL && entry->entity != NULL)
 313                                 browser_select_entry(c, entry, TRUE);
 314                 }
 315                 return false;
 316         } else {
 317                 entry = browser_get_selected_entry(browser);
 318
 319                 if (entry == NULL || entry->entity == NULL)
 320                         return false;
 321
 322                 return browser_select_entry(c, entry, TRUE);
 323         }
 324 }
 325
 326 static bool
 327 browser_handle_add(struct screen_browser *browser, struct mpdclient *c)
 328 {
 329         struct filelist_entry *entry;
 330
 331         if (browser->lw->range_selection) {
 332                 for (unsigned i = browser->lw->selected_start;
 333                          i <= browser->lw->selected_end; i++) {
 334                         entry = browser_get_index(browser, i);
 335
 336                         if (entry != NULL && entry->entity != NULL)
 337                                 browser_select_entry(c, entry, FALSE);
 338                 }
 339                 return false;
 340         } else {
 341                 entry = browser_get_selected_entry(browser);
 342
 343                 if (entry == NULL || entry->entity == NULL)
 344                         return false;
 345
 346                 return browser_select_entry(c, entry, FALSE);
 347         }
 348 }
 349
 350 static void
 351 browser_handle_select_all(struct screen_browser *browser, struct mpdclient *c)
 352 {
 353         guint i;
 354
 355         if (browser->filelist == NULL)
 356                 return;
 357
 358         for (i = 0; i < filelist_length(browser->filelist); ++i) {
 359                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 360
 361                 if (entry != NULL && entry->entity != NULL)
 362                         browser_select_entry(c, entry, FALSE);
 363         }
 364 }
 365
 366 #ifdef HAVE_GETMOUSE
 367 static int
 368 browser_handle_mouse_event(struct screen_browser *browser, struct mpdclient *c)
 369 {
 370         int row;
 371         unsigned prev_selected = browser->lw->selected;
 372         unsigned long bstate;
 373         int length;
 374
 375         if (browser->filelist)
 376                 length = filelist_length(browser->filelist);
 377         else
 378                 length = 0;
 379
 380         if (screen_get_mouse_event(c, &bstate, &row) ||
 381             list_window_mouse(browser->lw, length, bstate, row))
 382                 return 1;
 383
 384         browser->lw->selected = browser->lw->start + row;
 385         list_window_check_selected(browser->lw, length);
 386
 387         if( bstate & BUTTON1_CLICKED ) {
 388                 if (prev_selected == browser->lw->selected)
 389                         browser_handle_enter(browser, c);
 390         } else if (bstate & BUTTON3_CLICKED) {
 391                 if (prev_selected == browser->lw->selected)
 392                         browser_handle_select(browser, c);
 393         }
 394
 395         return 1;
 396 }
 397 #endif
 398
 399 bool
 400 browser_cmd(struct screen_browser *browser,
 401             struct mpdclient *c, command_t cmd)
 402 {
 403         const struct mpd_song *song;
 404
 405         if (browser->filelist == NULL)
 406                 return false;
 407
 408         switch (cmd) {
 409         case CMD_PLAY:
 410                 browser_handle_enter(browser, c);
 411                 return true;
 412
 413         case CMD_SELECT:
 414                 if (browser_handle_select(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_ADD:
 422                 if (browser_handle_add(browser, c))
 423                         /* continue and select next item... */
 424                         cmd = CMD_LIST_NEXT;
 425
 426                 /* call list_window_cmd to go to the next item */
 427                 break;
 428
 429         case CMD_SELECT_ALL:
 430                 browser_handle_select_all(browser, c);
 431                 return true;
 432
 433         case CMD_LIST_FIND:
 434         case CMD_LIST_RFIND:
 435         case CMD_LIST_FIND_NEXT:
 436         case CMD_LIST_RFIND_NEXT:
 437                 screen_find(browser->lw, filelist_length(browser->filelist),
 438                             cmd, browser_lw_callback,
 439                             browser->filelist);
 440                 return true;
 441         case CMD_LIST_JUMP:
 442                 screen_jump(browser->lw, browser_lw_callback, browser->filelist);
 443                 return true;
 444
 445 #ifdef HAVE_GETMOUSE
 446         case CMD_MOUSE_EVENT:
 447                 browser_handle_mouse_event(browser, c);
 448                 return true;
 449 #endif
 450
 451 #ifdef ENABLE_SONG_SCREEN
 452         case CMD_SCREEN_SONG:
 453                 song = browser_get_selected_song(browser);
 454                 if (song == NULL)
 455                         return false;
 456
 457                 screen_song_switch(c, song);
 458                 return true;
 459 #endif
 460
 461         case CMD_LOCATE:
 462                 song = browser_get_selected_song(browser);
 463                 if (song == NULL)
 464                         return false;
 465
 466                 screen_file_goto_song(c, song);
 467                 return true;
 468
 469 #ifdef ENABLE_LYRICS_SCREEN
 470         case CMD_SCREEN_LYRICS:
 471                 song = browser_get_selected_song(browser);
 472                 if (song == NULL)
 473                         return false;
 474
 475                 screen_lyrics_switch(c, song, false);
 476                 return true;
 477 #endif
 478         case CMD_SCREEN_SWAP:
 479                 screen_swap(c, browser_get_selected_song(browser));
 480                 return true;
 481
 482         default:
 483                 break;
 484         }
 485
 486         if (list_window_cmd(browser->lw, filelist_length(browser->filelist),
 487                             cmd))
 488                 return true;
 489
 490         return false;
 491 }