src/screen_browser.c

   1 /*
   2  * $Id$
   3  *
   4  * (c) 2004 by Kalle Wallin <kaw@linux.se>
   5  * Copyright (C) 2008 Max Kellermann <max@duempel.org>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  *
  20  */
  21
  22 #include "screen_browser.h"
  23 #include "ncmpc.h"
  24 #include "options.h"
  25 #include "support.h"
  26 #include "strfsong.h"
  27 #include "screen_utils.h"
  28 #include "gcc.h"
  29
  30 #include <string.h>
  31
  32 #define USE_OLD_LAYOUT
  33 #undef  USE_OLD_ADD
  34
  35 #define BUFSIZE 1024
  36
  37 #define HIGHLIGHT  (0x01)
  38
  39 /* clear the highlight flag for all items in the filelist */
  40 static void
  41 clear_highlights(mpdclient_filelist_t *fl)
  42 {
  43         GList *list = g_list_first(fl->list);
  44
  45         while( list ) {
  46                 filelist_entry_t *entry = list->data;
  47
  48                 entry->flags &= ~HIGHLIGHT;
  49                 list = list->next;
  50         }
  51 }
  52
  53 /* change the highlight flag for a song */
  54 static void
  55 set_highlight(mpdclient_filelist_t *fl, mpd_Song *song, int highlight)
  56 {
  57         GList *list = g_list_first(fl->list);
  58
  59         if( !song )
  60                 return;
  61
  62         while( list ) {
  63                 filelist_entry_t *entry = list->data;
  64                 mpd_InfoEntity *entity  = entry->entity;
  65
  66                 if( entity && entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
  67                         mpd_Song *song2 = entity->info.song;
  68
  69                         if( strcmp(song->file, song2->file) == 0 ) {
  70                                 if(highlight)
  71                                         entry->flags |= HIGHLIGHT;
  72                                 else
  73                                         entry->flags &= ~HIGHLIGHT;
  74                         }
  75                 }
  76                 list = list->next;
  77         }
  78 }
  79
  80 /* sync highlight flags with playlist */
  81 void
  82 sync_highlights(mpdclient_t *c, mpdclient_filelist_t *fl)
  83 {
  84         GList *list = g_list_first(fl->list);
  85
  86         while(list) {
  87                 filelist_entry_t *entry = list->data;
  88                 mpd_InfoEntity *entity = entry->entity;
  89
  90                 if( entity && entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
  91                         mpd_Song *song = entity->info.song;
  92
  93                         if( playlist_get_index_from_file(c, song->file) >= 0 )
  94                                 entry->flags |= HIGHLIGHT;
  95                         else
  96                                 entry->flags &= ~HIGHLIGHT;
  97                 }
  98                 list=list->next;
  99         }
 100 }
 101
 102 /* the playlist have been updated -> fix highlights */
 103 void
 104 browser_playlist_changed(struct screen_browser *browser, mpdclient_t *c,
 105                          int event, gpointer data)
 106 {
 107         if (browser->filelist == NULL)
 108                 return;
 109
 110         D("screen_file.c> playlist_callback() [%d]\n", event);
 111         switch(event) {
 112         case PLAYLIST_EVENT_CLEAR:
 113                 clear_highlights(browser->filelist);
 114                 break;
 115         case PLAYLIST_EVENT_ADD:
 116                 set_highlight(browser->filelist, (mpd_Song *) data, 1);
 117                 break;
 118         case PLAYLIST_EVENT_DELETE:
 119                 set_highlight(browser->filelist, (mpd_Song *) data, 0);
 120                 break;
 121         case PLAYLIST_EVENT_MOVE:
 122                 break;
 123         default:
 124                 sync_highlights(c, browser->filelist);
 125                 break;
 126         }
 127 }
 128
 129 /* list_window callback */
 130 const char *
 131 browser_lw_callback(unsigned idx, int *highlight, void *data)
 132 {
 133         static char buf[BUFSIZE];
 134         mpdclient_filelist_t *fl = (mpdclient_filelist_t *) data;
 135         filelist_entry_t *entry;
 136         mpd_InfoEntity *entity;
 137
 138         if( (entry=(filelist_entry_t *)g_list_nth_data(fl->list,idx))==NULL )
 139                 return NULL;
 140
 141         entity = entry->entity;
 142         *highlight = (entry->flags & HIGHLIGHT);
 143
 144         if( entity == NULL )
 145                 return "[..]";
 146
 147         if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
 148                 mpd_Directory *dir = entity->info.directory;
 149                 char *directory = utf8_to_locale(basename(dir->path));
 150
 151                 g_snprintf(buf, BUFSIZE, "[%s]", directory);
 152                 g_free(directory);
 153                 return buf;
 154         } else if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
 155                 mpd_Song *song = entity->info.song;
 156
 157                 strfsong(buf, BUFSIZE, LIST_FORMAT, song);
 158                 return buf;
 159         } else if( entity->type==MPD_INFO_ENTITY_TYPE_PLAYLISTFILE ) {
 160                 mpd_PlaylistFile *plf = entity->info.playlistFile;
 161                 char *filename = utf8_to_locale(basename(plf->path));
 162
 163 #ifdef USE_OLD_LAYOUT
 164                 g_snprintf(buf, BUFSIZE, "*%s*", filename);
 165 #else
 166                 g_snprintf(buf, BUFSIZE, "<Playlist> %s", filename);
 167 #endif
 168                 g_free(filename);
 169                 return buf;
 170         }
 171
 172         return "Error: Unknown entry!";
 173 }
 174
 175 /* chdir */
 176 int
 177 browser_change_directory(struct screen_browser *browser, mpdclient_t *c,
 178                          filelist_entry_t *entry, const char *new_path)
 179 {
 180         mpd_InfoEntity *entity = NULL;
 181         gchar *path = NULL;
 182
 183         if( entry!=NULL )
 184                 entity = entry->entity;
 185         else if( new_path==NULL )
 186                 return -1;
 187
 188         if( entity==NULL ) {
 189                 if( entry || 0==strcmp(new_path, "..") ) {
 190                         /* return to parent */
 191                         char *parent = g_path_get_dirname(browser->filelist->path);
 192                         if( strcmp(parent, ".") == 0 )
 193                                 parent[0] = '\0';
 194                         path = g_strdup(parent);
 195                         list_window_reset(browser->lw);
 196                         /* restore previous list window state */
 197                         list_window_pop_state(browser->lw_state, browser->lw);
 198                 } else {
 199                         /* entry==NULL, then new_path ("" is root) */
 200                         path = g_strdup(new_path);
 201                         list_window_reset(browser->lw);
 202                         /* restore first list window state (pop while returning true) */
 203                         while(list_window_pop_state(browser->lw_state, browser->lw));
 204                 }
 205         } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY) {
 206                 /* enter sub */
 207                 mpd_Directory *dir = entity->info.directory;
 208                 path = utf8_to_locale(dir->path);
 209                 /* save current list window state */
 210                 list_window_push_state(browser->lw_state, browser->lw);
 211         } else
 212                 return -1;
 213
 214         mpdclient_filelist_free(browser->filelist);
 215         browser->filelist = mpdclient_filelist_get(c, path);
 216         sync_highlights(c, browser->filelist);
 217         list_window_check_selected(browser->lw, browser->filelist->length);
 218         g_free(path);
 219         return 0;
 220 }
 221
 222 static int
 223 load_playlist(mpdclient_t *c, filelist_entry_t *entry)
 224 {
 225         mpd_InfoEntity *entity = entry->entity;
 226         mpd_PlaylistFile *plf = entity->info.playlistFile;
 227         char *filename = utf8_to_locale(plf->path);
 228
 229         if (mpdclient_cmd_load_playlist_utf8(c, plf->path) == 0)
 230                 screen_status_printf(_("Loading playlist %s..."), basename(filename));
 231         g_free(filename);
 232         return 0;
 233 }
 234
 235 static int
 236 enqueue_and_play(mpdclient_t *c, filelist_entry_t *entry)
 237 {
 238         int idx;
 239         mpd_InfoEntity *entity = entry->entity;
 240         mpd_Song *song = entity->info.song;
 241
 242         if (!(entry->flags & HIGHLIGHT)) {
 243                 if (mpdclient_cmd_add(c, song) == 0) {
 244                         char buf[BUFSIZE];
 245
 246                         entry->flags |= HIGHLIGHT;
 247                         strfsong(buf, BUFSIZE, LIST_FORMAT, song);
 248                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 249                         mpdclient_update(c); /* get song id */
 250                 } else
 251                         return -1;
 252         }
 253
 254         idx = playlist_get_index_from_file(c, song->file);
 255         mpdclient_cmd_play(c, idx);
 256         return 0;
 257 }
 258
 259 int
 260 browser_handle_enter(struct screen_browser *browser, mpdclient_t *c)
 261 {
 262         filelist_entry_t *entry;
 263         mpd_InfoEntity *entity;
 264
 265         if (browser->filelist == NULL)
 266                 return -1;
 267         entry = (filelist_entry_t *) g_list_nth_data(browser->filelist->list,
 268                                                      browser->lw->selected);
 269         if( entry==NULL )
 270                 return -1;
 271
 272         entity = entry->entity;
 273         if (entity == NULL || entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY)
 274                 return browser_change_directory(browser, c, entry, NULL);
 275         else if (entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 276                 return load_playlist(c, entry);
 277         else if (entity->type == MPD_INFO_ENTITY_TYPE_SONG)
 278                 return enqueue_and_play(c, entry);
 279         return -1;
 280 }
 281
 282
 283 #ifdef USE_OLD_ADD
 284 /* NOTE - The add_directory functions should move to mpdclient.c */
 285 extern gint mpdclient_finish_command(mpdclient_t *c);
 286
 287 static int
 288 add_directory(mpdclient_t *c, char *dir)
 289 {
 290         mpd_InfoEntity *entity;
 291         GList *subdir_list = NULL;
 292         GList *list = NULL;
 293         char *dirname;
 294
 295         dirname = utf8_to_locale(dir);
 296         screen_status_printf(_("Adding directory %s...\n"), dirname);
 297         doupdate();
 298         g_free(dirname);
 299         dirname = NULL;
 300
 301         mpd_sendLsInfoCommand(c->connection, dir);
 302         mpd_sendCommandListBegin(c->connection);
 303         while( (entity=mpd_getNextInfoEntity(c->connection)) ) {
 304                 if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
 305                         mpd_Song *song = entity->info.song;
 306                         mpd_sendAddCommand(c->connection, song->file);
 307                         mpd_freeInfoEntity(entity);
 308                 } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
 309                         subdir_list = g_list_append(subdir_list, (gpointer) entity);
 310                 } else
 311                         mpd_freeInfoEntity(entity);
 312         }
 313         mpd_sendCommandListEnd(c->connection);
 314         mpdclient_finish_command(c);
 315         c->need_update = TRUE;
 316
 317         list = g_list_first(subdir_list);
 318         while( list!=NULL ) {
 319                 mpd_Directory *dir;
 320
 321                 entity = list->data;
 322                 dir = entity->info.directory;
 323                 add_directory(c, dir->path);
 324                 mpd_freeInfoEntity(entity);
 325                 list->data=NULL;
 326                 list=list->next;
 327         }
 328         g_list_free(subdir_list);
 329         return 0;
 330 }
 331 #endif
 332
 333 static int
 334 browser_select_entry(mpdclient_t *c, filelist_entry_t *entry,
 335                      gboolean toggle)
 336 {
 337         assert(entry != NULL);
 338         assert(entry->entity != NULL);
 339
 340         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 341                 return load_playlist(c, entry);
 342
 343         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY) {
 344                 mpd_Directory *dir = entry->entity->info.directory;
 345 #ifdef USE_OLD_ADD
 346                 add_directory(c, tmp);
 347 #else
 348                 if (mpdclient_cmd_add_path_utf8(c, dir->path) == 0) {
 349                         char *tmp = utf8_to_locale(dir->path);
 350
 351                         screen_status_printf(_("Adding \'%s\' to playlist\n"), tmp);
 352                         g_free(tmp);
 353                 }
 354 #endif
 355                 return 0;
 356         }
 357
 358         if (entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 359                 return -1;
 360
 361         if (!toggle || (entry->flags & HIGHLIGHT) == 0) {
 362                 mpd_Song *song = entry->entity->info.song;
 363
 364                 entry->flags |= HIGHLIGHT;
 365
 366                 if (mpdclient_cmd_add(c, song) == 0) {
 367                         char buf[BUFSIZE];
 368
 369                         strfsong(buf, BUFSIZE, LIST_FORMAT, song);
 370                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 371                 }
 372         } else {
 373                 /* remove song from playlist */
 374                 mpd_Song *song = entry->entity->info.song;
 375
 376                 entry->flags &= ~HIGHLIGHT;
 377
 378                 if (song) {
 379                         int idx;
 380
 381                         while ((idx = playlist_get_index_from_file(c, song->file)) >=0)
 382                                 mpdclient_cmd_delete(c, idx);
 383                 }
 384         }
 385
 386         return 0;
 387 }
 388
 389 int
 390 browser_handle_select(struct screen_browser *browser, mpdclient_t *c)
 391 {
 392         filelist_entry_t *entry;
 393
 394         if (browser->filelist == NULL)
 395                 return -1;
 396         entry = g_list_nth_data(browser->filelist->list, browser->lw->selected);
 397         if (entry == NULL || entry->entity == NULL)
 398                 return -1;
 399
 400         return browser_select_entry(c, entry, TRUE);
 401 }
 402
 403 void
 404 browser_handle_select_all(struct screen_browser *browser, mpdclient_t *c)
 405 {
 406         filelist_entry_t *entry;
 407         GList *temp = browser->filelist->list;
 408
 409         if (browser->filelist == NULL)
 410                 return;
 411
 412         for (browser->filelist->list = g_list_first(browser->filelist->list);
 413              browser->filelist->list;
 414              browser->filelist->list = g_list_next(browser->filelist->list)) {
 415                 entry = browser->filelist->list->data;
 416                 if (entry != NULL && entry->entity != NULL)
 417                         browser_select_entry(c, entry, FALSE);
 418         }
 419
 420         browser->filelist->list = temp;
 421 }
 422
 423 #ifdef HAVE_GETMOUSE
 424 int
 425 browser_handle_mouse_event(struct screen_browser *browser, mpdclient_t *c)
 426 {
 427         int row;
 428         unsigned prev_selected = browser->lw->selected;
 429         unsigned long bstate;
 430         int length;
 431
 432         if (browser->filelist)
 433                 length = browser->filelist->length;
 434         else
 435                 length = 0;
 436
 437         if( screen_get_mouse_event(c, browser->lw, length, &bstate, &row) )
 438                 return 1;
 439
 440         browser->lw->selected = browser->lw->start + row;
 441         list_window_check_selected(browser->lw, length);
 442
 443         if( bstate & BUTTON1_CLICKED ) {
 444                 if (prev_selected == browser->lw->selected)
 445                         browser_handle_enter(browser, c);
 446         } else if (bstate & BUTTON3_CLICKED) {
 447                 if (prev_selected == browser->lw->selected)
 448                         browser_handle_select(browser, c);
 449         }
 450
 451         return 1;
 452 }
 453 #endif
 454