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