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         struct filelist_entry *entry = mpdclient_filelist_find_song(fl, song);
  58         mpd_InfoEntity *entity;
  59
  60         if (entry == NULL)
  61                 return;
  62
  63         entity = entry->entity;
  64         if (highlight)
  65                 entry->flags |= HIGHLIGHT;
  66         else
  67                 entry->flags &= ~HIGHLIGHT;
  68 }
  69
  70 /* sync highlight flags with playlist */
  71 void
  72 sync_highlights(mpdclient_t *c, mpdclient_filelist_t *fl)
  73 {
  74         GList *list = g_list_first(fl->list);
  75
  76         while(list) {
  77                 filelist_entry_t *entry = list->data;
  78                 mpd_InfoEntity *entity = entry->entity;
  79
  80                 if( entity && entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
  81                         mpd_Song *song = entity->info.song;
  82
  83                         if( playlist_get_index_from_file(c, song->file) >= 0 )
  84                                 entry->flags |= HIGHLIGHT;
  85                         else
  86                                 entry->flags &= ~HIGHLIGHT;
  87                 }
  88                 list=list->next;
  89         }
  90 }
  91
  92 /* the playlist have been updated -> fix highlights */
  93 void
  94 browser_playlist_changed(struct screen_browser *browser, mpdclient_t *c,
  95                          int event, gpointer data)
  96 {
  97         if (browser->filelist == NULL)
  98                 return;
  99
 100         D("screen_file.c> playlist_callback() [%d]\n", event);
 101         switch(event) {
 102         case PLAYLIST_EVENT_CLEAR:
 103                 clear_highlights(browser->filelist);
 104                 break;
 105         case PLAYLIST_EVENT_ADD:
 106                 set_highlight(browser->filelist, (mpd_Song *) data, 1);
 107                 break;
 108         case PLAYLIST_EVENT_DELETE:
 109                 set_highlight(browser->filelist, (mpd_Song *) data, 0);
 110                 break;
 111         case PLAYLIST_EVENT_MOVE:
 112                 break;
 113         default:
 114                 sync_highlights(c, browser->filelist);
 115                 break;
 116         }
 117 }
 118
 119 /* list_window callback */
 120 const char *
 121 browser_lw_callback(unsigned idx, int *highlight, void *data)
 122 {
 123         static char buf[BUFSIZE];
 124         mpdclient_filelist_t *fl = (mpdclient_filelist_t *) data;
 125         filelist_entry_t *entry;
 126         mpd_InfoEntity *entity;
 127
 128         if( (entry=(filelist_entry_t *)g_list_nth_data(fl->list,idx))==NULL )
 129                 return NULL;
 130
 131         entity = entry->entity;
 132         *highlight = (entry->flags & HIGHLIGHT);
 133
 134         if( entity == NULL )
 135                 return "[..]";
 136
 137         if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
 138                 mpd_Directory *dir = entity->info.directory;
 139                 char *directory = utf8_to_locale(basename(dir->path));
 140
 141                 g_snprintf(buf, BUFSIZE, "[%s]", directory);
 142                 g_free(directory);
 143                 return buf;
 144         } else if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
 145                 mpd_Song *song = entity->info.song;
 146
 147                 strfsong(buf, BUFSIZE, LIST_FORMAT, song);
 148                 return buf;
 149         } else if( entity->type==MPD_INFO_ENTITY_TYPE_PLAYLISTFILE ) {
 150                 mpd_PlaylistFile *plf = entity->info.playlistFile;
 151                 char *filename = utf8_to_locale(basename(plf->path));
 152
 153 #ifdef USE_OLD_LAYOUT
 154                 g_snprintf(buf, BUFSIZE, "*%s*", filename);
 155 #else
 156                 g_snprintf(buf, BUFSIZE, "<Playlist> %s", filename);
 157 #endif
 158                 g_free(filename);
 159                 return buf;
 160         }
 161
 162         return "Error: Unknown entry!";
 163 }
 164
 165 /* chdir */
 166 int
 167 browser_change_directory(struct screen_browser *browser, mpdclient_t *c,
 168                          filelist_entry_t *entry, const char *new_path)
 169 {
 170         mpd_InfoEntity *entity = NULL;
 171         gchar *path = NULL;
 172
 173         if( entry!=NULL )
 174                 entity = entry->entity;
 175         else if( new_path==NULL )
 176                 return -1;
 177
 178         if( entity==NULL ) {
 179                 if( entry || 0==strcmp(new_path, "..") ) {
 180                         /* return to parent */
 181                         char *parent = g_path_get_dirname(browser->filelist->path);
 182                         if( strcmp(parent, ".") == 0 )
 183                                 parent[0] = '\0';
 184                         path = g_strdup(parent);
 185                         list_window_reset(browser->lw);
 186                         /* restore previous list window state */
 187                         list_window_pop_state(browser->lw_state, browser->lw);
 188                 } else {
 189                         /* entry==NULL, then new_path ("" is root) */
 190                         path = g_strdup(new_path);
 191                         list_window_reset(browser->lw);
 192                         /* restore first list window state (pop while returning true) */
 193                         while(list_window_pop_state(browser->lw_state, browser->lw));
 194                 }
 195         } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY) {
 196                 /* enter sub */
 197                 mpd_Directory *dir = entity->info.directory;
 198                 path = utf8_to_locale(dir->path);
 199                 /* save current list window state */
 200                 list_window_push_state(browser->lw_state, browser->lw);
 201         } else
 202                 return -1;
 203
 204         mpdclient_filelist_free(browser->filelist);
 205         browser->filelist = mpdclient_filelist_get(c, path);
 206         sync_highlights(c, browser->filelist);
 207         list_window_check_selected(browser->lw, browser->filelist->length);
 208         g_free(path);
 209         return 0;
 210 }
 211
 212 static int
 213 load_playlist(mpdclient_t *c, filelist_entry_t *entry)
 214 {
 215         mpd_InfoEntity *entity = entry->entity;
 216         mpd_PlaylistFile *plf = entity->info.playlistFile;
 217         char *filename = utf8_to_locale(plf->path);
 218
 219         if (mpdclient_cmd_load_playlist_utf8(c, plf->path) == 0)
 220                 screen_status_printf(_("Loading playlist %s..."), basename(filename));
 221         g_free(filename);
 222         return 0;
 223 }
 224
 225 static int
 226 enqueue_and_play(mpdclient_t *c, filelist_entry_t *entry)
 227 {
 228         int idx;
 229         mpd_InfoEntity *entity = entry->entity;
 230         mpd_Song *song = entity->info.song;
 231
 232         if (!(entry->flags & HIGHLIGHT)) {
 233                 if (mpdclient_cmd_add(c, song) == 0) {
 234                         char buf[BUFSIZE];
 235
 236                         entry->flags |= HIGHLIGHT;
 237                         strfsong(buf, BUFSIZE, LIST_FORMAT, song);
 238                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 239                         mpdclient_update(c); /* get song id */
 240                 } else
 241                         return -1;
 242         }
 243
 244         idx = playlist_get_index_from_file(c, song->file);
 245         mpdclient_cmd_play(c, idx);
 246         return 0;
 247 }
 248
 249 int
 250 browser_handle_enter(struct screen_browser *browser, mpdclient_t *c)
 251 {
 252         filelist_entry_t *entry;
 253         mpd_InfoEntity *entity;
 254
 255         if (browser->filelist == NULL)
 256                 return -1;
 257         entry = (filelist_entry_t *) g_list_nth_data(browser->filelist->list,
 258                                                      browser->lw->selected);
 259         if( entry==NULL )
 260                 return -1;
 261
 262         entity = entry->entity;
 263         if (entity == NULL || entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY)
 264                 return browser_change_directory(browser, c, entry, NULL);
 265         else if (entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 266                 return load_playlist(c, entry);
 267         else if (entity->type == MPD_INFO_ENTITY_TYPE_SONG)
 268                 return enqueue_and_play(c, entry);
 269         return -1;
 270 }
 271
 272
 273 #ifdef USE_OLD_ADD
 274 /* NOTE - The add_directory functions should move to mpdclient.c */
 275 extern gint mpdclient_finish_command(mpdclient_t *c);
 276
 277 static int
 278 add_directory(mpdclient_t *c, char *dir)
 279 {
 280         mpd_InfoEntity *entity;
 281         GList *subdir_list = NULL;
 282         GList *list = NULL;
 283         char *dirname;
 284
 285         dirname = utf8_to_locale(dir);
 286         screen_status_printf(_("Adding directory %s...\n"), dirname);
 287         doupdate();
 288         g_free(dirname);
 289         dirname = NULL;
 290
 291         mpd_sendLsInfoCommand(c->connection, dir);
 292         mpd_sendCommandListBegin(c->connection);
 293         while( (entity=mpd_getNextInfoEntity(c->connection)) ) {
 294                 if( entity->type==MPD_INFO_ENTITY_TYPE_SONG ) {
 295                         mpd_Song *song = entity->info.song;
 296                         mpd_sendAddCommand(c->connection, song->file);
 297                         mpd_freeInfoEntity(entity);
 298                 } else if( entity->type==MPD_INFO_ENTITY_TYPE_DIRECTORY ) {
 299                         subdir_list = g_list_append(subdir_list, (gpointer) entity);
 300                 } else
 301                         mpd_freeInfoEntity(entity);
 302         }
 303         mpd_sendCommandListEnd(c->connection);
 304         mpdclient_finish_command(c);
 305         c->need_update = TRUE;
 306
 307         list = g_list_first(subdir_list);
 308         while( list!=NULL ) {
 309                 mpd_Directory *dir;
 310
 311                 entity = list->data;
 312                 dir = entity->info.directory;
 313                 add_directory(c, dir->path);
 314                 mpd_freeInfoEntity(entity);
 315                 list->data=NULL;
 316                 list=list->next;
 317         }
 318         g_list_free(subdir_list);
 319         return 0;
 320 }
 321 #endif
 322
 323 static int
 324 browser_select_entry(mpdclient_t *c, filelist_entry_t *entry,
 325                      gboolean toggle)
 326 {
 327         assert(entry != NULL);
 328         assert(entry->entity != NULL);
 329
 330         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_PLAYLISTFILE)
 331                 return load_playlist(c, entry);
 332
 333         if (entry->entity->type == MPD_INFO_ENTITY_TYPE_DIRECTORY) {
 334                 mpd_Directory *dir = entry->entity->info.directory;
 335 #ifdef USE_OLD_ADD
 336                 add_directory(c, tmp);
 337 #else
 338                 if (mpdclient_cmd_add_path_utf8(c, dir->path) == 0) {
 339                         char *tmp = utf8_to_locale(dir->path);
 340
 341                         screen_status_printf(_("Adding \'%s\' to playlist\n"), tmp);
 342                         g_free(tmp);
 343                 }
 344 #endif
 345                 return 0;
 346         }
 347
 348         if (entry->entity->type != MPD_INFO_ENTITY_TYPE_SONG)
 349                 return -1;
 350
 351         assert(entry->entity->info.song != NULL);
 352
 353         if (!toggle || (entry->flags & HIGHLIGHT) == 0) {
 354                 mpd_Song *song = entry->entity->info.song;
 355
 356                 entry->flags |= HIGHLIGHT;
 357
 358                 if (mpdclient_cmd_add(c, song) == 0) {
 359                         char buf[BUFSIZE];
 360
 361                         strfsong(buf, BUFSIZE, LIST_FORMAT, song);
 362                         screen_status_printf(_("Adding \'%s\' to playlist\n"), buf);
 363                 }
 364         } else {
 365                 /* remove song from playlist */
 366                 mpd_Song *song = entry->entity->info.song;
 367                 int idx;
 368
 369                 entry->flags &= ~HIGHLIGHT;
 370
 371                 while ((idx = playlist_get_index_from_file(c, song->file)) >=0)
 372                         mpdclient_cmd_delete(c, idx);
 373         }
 374
 375         return 0;
 376 }
 377
 378 int
 379 browser_handle_select(struct screen_browser *browser, mpdclient_t *c)
 380 {
 381         filelist_entry_t *entry;
 382
 383         if (browser->filelist == NULL)
 384                 return -1;
 385         entry = g_list_nth_data(browser->filelist->list, browser->lw->selected);
 386         if (entry == NULL || entry->entity == NULL)
 387                 return -1;
 388
 389         return browser_select_entry(c, entry, TRUE);
 390 }
 391
 392 void
 393 browser_handle_select_all(struct screen_browser *browser, mpdclient_t *c)
 394 {
 395         filelist_entry_t *entry;
 396         GList *temp = browser->filelist->list;
 397
 398         if (browser->filelist == NULL)
 399                 return;
 400
 401         for (browser->filelist->list = g_list_first(browser->filelist->list);
 402              browser->filelist->list;
 403              browser->filelist->list = g_list_next(browser->filelist->list)) {
 404                 entry = browser->filelist->list->data;
 405                 if (entry != NULL && entry->entity != NULL)
 406                         browser_select_entry(c, entry, FALSE);
 407         }
 408
 409         browser->filelist->list = temp;
 410 }
 411
 412 #ifdef HAVE_GETMOUSE
 413 int
 414 browser_handle_mouse_event(struct screen_browser *browser, mpdclient_t *c)
 415 {
 416         int row;
 417         unsigned prev_selected = browser->lw->selected;
 418         unsigned long bstate;
 419         int length;
 420
 421         if (browser->filelist)
 422                 length = browser->filelist->length;
 423         else
 424                 length = 0;
 425
 426         if( screen_get_mouse_event(c, browser->lw, length, &bstate, &row) )
 427                 return 1;
 428
 429         browser->lw->selected = browser->lw->start + row;
 430         list_window_check_selected(browser->lw, length);
 431
 432         if( bstate & BUTTON1_CLICKED ) {
 433                 if (prev_selected == browser->lw->selected)
 434                         browser_handle_enter(browser, c);
 435         } else if (bstate & BUTTON3_CLICKED) {
 436                 if (prev_selected == browser->lw->selected)
 437                         browser_handle_select(browser, c);
 438         }
 439
 440         return 1;
 441 }
 442 #endif
 443