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_find.h"
  26 #include "screen.h"
  27 #include "i18n.h"
  28 #include "options.h"
  29 #include "charset.h"
  30 #include "strfsong.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 static 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         assert(fl != NULL);
  84         assert(idx < filelist_length(fl));
  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         struct mpd_connection *connection = mpdclient_get_connection(c);
 129         char *filename = utf8_to_locale(mpd_playlist_get_path(playlist));
 130
 131         if (mpd_run_load(connection, mpd_playlist_get_path(playlist))) {
 132                 screen_status_printf(_("Loading playlist %s..."),
 133                                      g_basename(filename));
 134                 c->events |= MPD_IDLE_QUEUE;
 135         } else
 136                 mpdclient_handle_error(c);
 137
 138         g_free(filename);
 139         return true;
 140 }
 141
 142 static bool
 143 enqueue_and_play(struct mpdclient *c, struct filelist_entry *entry)
 144 {
 145         struct mpd_connection *connection = mpdclient_get_connection(c);
 146         const struct mpd_song *song = mpd_entity_get_song(entry->entity);
 147         int id;
 148
 149 #ifndef NCMPC_MINI
 150         if (!(entry->flags & HIGHLIGHT))
 151                 id = -1;
 152         else
 153 #endif
 154                 id = playlist_get_id_from_same_song(&c->playlist, song);
 155
 156         if (id < 0) {
 157                 char buf[BUFSIZE];
 158
 159                 id = mpd_run_add_id(connection, mpd_song_get_uri(song));
 160                 if (id < 0) {
 161                         mpdclient_handle_error(c);
 162                         return false;
 163                 }
 164
 165 #ifndef NCMPC_MINI
 166                 entry->flags |= HIGHLIGHT;
 167 #endif
 168                 strfsong(buf, BUFSIZE, options.list_format, song);
 169                 screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 170         }
 171
 172         if (!mpd_run_play_id(connection, id)) {
 173                 mpdclient_handle_error(c);
 174                 return false;
 175         }
 176
 177         return true;
 178 }
 179
 180 struct filelist_entry *
 181 browser_get_selected_entry(const struct screen_browser *browser)
 182 {
 183         struct list_window_range range;
 184
 185         list_window_get_range(browser->lw, &range);
 186
 187         if (browser->filelist == NULL ||
 188             range.end <= range.start ||
 189             range.end > range.start + 1 ||
 190             range.start >= filelist_length(browser->filelist))
 191                 return NULL;
 192
 193         return filelist_get(browser->filelist, range.start);
 194 }
 195
 196 static const struct mpd_entity *
 197 browser_get_selected_entity(const struct screen_browser *browser)
 198 {
 199         const struct filelist_entry *entry = browser_get_selected_entry(browser);
 200
 201         return entry != NULL
 202                 ? entry->entity
 203                 : NULL;
 204 }
 205
 206 static const struct mpd_song *
 207 browser_get_selected_song(const struct screen_browser *browser)
 208 {
 209         const struct mpd_entity *entity = browser_get_selected_entity(browser);
 210
 211         return entity != NULL &&
 212                 mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG
 213                 ? mpd_entity_get_song(entity)
 214                 : NULL;
 215 }
 216
 217 static struct filelist_entry *
 218 browser_get_index(const struct screen_browser *browser, unsigned i)
 219 {
 220         if (browser->filelist == NULL ||
 221             i >= filelist_length(browser->filelist))
 222                 return NULL;
 223
 224         return filelist_get(browser->filelist, i);
 225 }
 226
 227 static bool
 228 browser_handle_enter(struct screen_browser *browser, struct mpdclient *c)
 229 {
 230         struct filelist_entry *entry = browser_get_selected_entry(browser);
 231         struct mpd_entity *entity;
 232
 233         if (entry == NULL)
 234                 return false;
 235
 236         entity = entry->entity;
 237         if (entity == NULL)
 238                 return false;
 239
 240         if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_PLAYLIST)
 241                 return load_playlist(c, mpd_entity_get_playlist(entity));
 242         else if (mpd_entity_get_type(entity) == MPD_ENTITY_TYPE_SONG)
 243                 return enqueue_and_play(c, entry);
 244         return false;
 245 }
 246
 247 static bool
 248 browser_select_entry(struct mpdclient *c, struct filelist_entry *entry,
 249                      G_GNUC_UNUSED gboolean toggle)
 250 {
 251         assert(entry != NULL);
 252         assert(entry->entity != NULL);
 253
 254         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_PLAYLIST)
 255                 return load_playlist(c, mpd_entity_get_playlist(entry->entity));
 256
 257         if (mpd_entity_get_type(entry->entity) == MPD_ENTITY_TYPE_DIRECTORY) {
 258                 const struct mpd_directory *dir =
 259                         mpd_entity_get_directory(entry->entity);
 260
 261                 if (mpdclient_cmd_add_path(c, mpd_directory_get_path(dir))) {
 262                         char *tmp = utf8_to_locale(mpd_directory_get_path(dir));
 263
 264                         screen_status_printf(_("Adding \'%s\' to playlist"), tmp);
 265                         g_free(tmp);
 266                 }
 267
 268                 return true;
 269         }
 270
 271         if (mpd_entity_get_type(entry->entity) != MPD_ENTITY_TYPE_SONG)
 272                 return false;
 273
 274 #ifndef NCMPC_MINI
 275         if (!toggle || (entry->flags & HIGHLIGHT) == 0)
 276 #endif
 277         {
 278                 const struct mpd_song *song =
 279                         mpd_entity_get_song(entry->entity);
 280
 281 #ifndef NCMPC_MINI
 282                 entry->flags |= HIGHLIGHT;
 283 #endif
 284
 285                 if (mpdclient_cmd_add(c, song)) {
 286                         char buf[BUFSIZE];
 287
 288                         strfsong(buf, BUFSIZE, options.list_format, song);
 289                         screen_status_printf(_("Adding \'%s\' to playlist"), buf);
 290                 }
 291 #ifndef NCMPC_MINI
 292         } else {
 293                 /* remove song from playlist */
 294                 const struct mpd_song *song =
 295                         mpd_entity_get_song(entry->entity);
 296                 int idx;
 297
 298                 entry->flags &= ~HIGHLIGHT;
 299
 300                 while ((idx = playlist_get_index_from_same_song(&c->playlist,
 301                                                                 song)) >= 0)
 302                         mpdclient_cmd_delete(c, idx);
 303 #endif
 304         }
 305
 306         return true;
 307 }
 308
 309 static bool
 310 browser_handle_select(struct screen_browser *browser, struct mpdclient *c)
 311 {
 312         struct list_window_range range;
 313         struct filelist_entry *entry;
 314         bool success;
 315
 316         list_window_get_range(browser->lw, &range);
 317         for (unsigned i = range.start; i < range.end; ++i) {
 318                 entry = browser_get_index(browser, i);
 319
 320                 if (entry != NULL && entry->entity != NULL)
 321                         success = browser_select_entry(c, entry, TRUE);
 322         }
 323
 324         return range.end == range.start + 1 && success;
 325 }
 326
 327 static bool
 328 browser_handle_add(struct screen_browser *browser, struct mpdclient *c)
 329 {
 330         struct list_window_range range;
 331         struct filelist_entry *entry;
 332         bool success;
 333
 334         list_window_get_range(browser->lw, &range);
 335         for (unsigned i = range.start; i < range.end; ++i) {
 336                 entry = browser_get_index(browser, i);
 337
 338                 if (entry != NULL && entry->entity != NULL)
 339                         success = browser_select_entry(c, entry, FALSE);
 340         }
 341
 342         return range.end == range.start + 1 && success;
 343 }
 344
 345 static void
 346 browser_handle_select_all(struct screen_browser *browser, struct mpdclient *c)
 347 {
 348         guint i;
 349
 350         if (browser->filelist == NULL)
 351                 return;
 352
 353         for (i = 0; i < filelist_length(browser->filelist); ++i) {
 354                 struct filelist_entry *entry = filelist_get(browser->filelist, i);
 355
 356                 if (entry != NULL && entry->entity != NULL)
 357                         browser_select_entry(c, entry, FALSE);
 358         }
 359 }
 360
 361 #ifdef HAVE_GETMOUSE
 362 static int
 363 browser_handle_mouse_event(struct screen_browser *browser, struct mpdclient *c)
 364 {
 365         int row;
 366         unsigned prev_selected = browser->lw->selected;
 367         unsigned long bstate;
 368
 369         if (screen_get_mouse_event(c, &bstate, &row) ||
 370             list_window_mouse(browser->lw, bstate, row))
 371                 return 1;
 372
 373         list_window_set_cursor(browser->lw, browser->lw->start + row);
 374
 375         if( bstate & BUTTON1_CLICKED ) {
 376                 if (prev_selected == browser->lw->selected)
 377                         browser_handle_enter(browser, c);
 378         } else if (bstate & BUTTON3_CLICKED) {
 379                 if (prev_selected == browser->lw->selected)
 380                         browser_handle_select(browser, c);
 381         }
 382
 383         return 1;
 384 }
 385 #endif
 386
 387 bool
 388 browser_cmd(struct screen_browser *browser,
 389             struct mpdclient *c, command_t cmd)
 390 {
 391         const struct mpd_song *song;
 392
 393         if (browser->filelist == NULL)
 394                 return false;
 395
 396         if (list_window_cmd(browser->lw, cmd))
 397                 return true;
 398
 399         switch (cmd) {
 400         case CMD_LIST_FIND:
 401         case CMD_LIST_RFIND:
 402         case CMD_LIST_FIND_NEXT:
 403         case CMD_LIST_RFIND_NEXT:
 404                 screen_find(browser->lw, cmd, browser_lw_callback,
 405                             browser->filelist);
 406                 return true;
 407         case CMD_LIST_JUMP:
 408                 screen_jump(browser->lw, browser_lw_callback,
 409                             NULL, browser->filelist);
 410                 return true;
 411
 412 #ifdef HAVE_GETMOUSE
 413         case CMD_MOUSE_EVENT:
 414                 browser_handle_mouse_event(browser, c);
 415                 return true;
 416 #endif
 417
 418 #ifdef ENABLE_SONG_SCREEN
 419         case CMD_SCREEN_SONG:
 420                 song = browser_get_selected_song(browser);
 421                 if (song == NULL)
 422                         return false;
 423
 424                 screen_song_switch(c, song);
 425                 return true;
 426 #endif
 427
 428 #ifdef ENABLE_LYRICS_SCREEN
 429         case CMD_SCREEN_LYRICS:
 430                 song = browser_get_selected_song(browser);
 431                 if (song == NULL)
 432                         return false;
 433
 434                 screen_lyrics_switch(c, song, false);
 435                 return true;
 436 #endif
 437         case CMD_SCREEN_SWAP:
 438                 screen_swap(c, browser_get_selected_song(browser));
 439                 return true;
 440
 441         default:
 442                 break;
 443         }
 444
 445         if (!mpdclient_is_connected(c))
 446                 return false;
 447
 448         switch (cmd) {
 449         case CMD_PLAY:
 450                 browser_handle_enter(browser, c);
 451                 return true;
 452
 453         case CMD_SELECT:
 454                 if (browser_handle_select(browser, c))
 455                         list_window_cmd(browser->lw, CMD_LIST_NEXT);
 456                 return true;
 457
 458         case CMD_ADD:
 459                 if (browser_handle_add(browser, c))
 460                         list_window_cmd(browser->lw, CMD_LIST_NEXT);
 461                 return true;
 462
 463         case CMD_SELECT_ALL:
 464                 browser_handle_select_all(browser, c);
 465                 return true;
 466
 467         case CMD_LOCATE:
 468                 song = browser_get_selected_song(browser);
 469                 if (song == NULL)
 470                         return false;
 471
 472                 screen_file_goto_song(c, song);
 473                 return true;
 474
 475         default:
 476                 break;
 477         }
 478
 479         return false;
 480 }
 481
 482 void
 483 screen_browser_paint(const struct screen_browser *browser)
 484 {
 485         list_window_paint(browser->lw, browser_lw_callback, browser->filelist);
 486 }