src/screen_search.c

   1 /*
   2  * $Id$
   3  *
   4  * (c) 2004 by Kalle Wallin <kaw@linux.se>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  *
  19  */
  20
  21 #include "config.h"
  22
  23 #ifndef DISABLE_SEARCH_SCREEN
  24 #include "ncmpc.h"
  25 #include "options.h"
  26 #include "support.h"
  27 #include "mpdclient.h"
  28 #include "strfsong.h"
  29 #include "command.h"
  30 #include "screen.h"
  31 #include "utils.h"
  32 #include "screen_utils.h"
  33 #include "screen_browser.h"
  34 #include "gcc.h"
  35
  36 #include <ctype.h>
  37 #include <stdlib.h>
  38 #include <string.h>
  39 #include <glib.h>
  40 #include <ncurses.h>
  41
  42 /* new search stuff with qball's libmpdclient */
  43 #define FUTURE
  44
  45 #ifdef FUTURE
  46
  47 extern gint mpdclient_finish_command(mpdclient_t *c);
  48
  49 typedef struct {
  50         int id;
  51         const char *name;
  52         const char *localname;
  53 } search_tag_t;
  54
  55 static search_tag_t search_tag[] = {
  56         { MPD_TAG_ITEM_ARTIST, "artist", N_("artist") },
  57         { MPD_TAG_ITEM_ALBUM, "album", N_("album") },
  58         { MPD_TAG_ITEM_TITLE, "title", N_("title") },
  59         { MPD_TAG_ITEM_TRACK, "track", N_("track") },
  60         { MPD_TAG_ITEM_NAME, "name", N_("name") },
  61         { MPD_TAG_ITEM_GENRE, "genre", N_("genre") },
  62         { MPD_TAG_ITEM_DATE, "date", N_("date") },
  63         { MPD_TAG_ITEM_COMPOSER, "composer", N_("composer") },
  64         { MPD_TAG_ITEM_PERFORMER, "performer", N_("performer") },
  65         { MPD_TAG_ITEM_COMMENT, "comment", N_("comment") },
  66         { MPD_TAG_ITEM_FILENAME, "filename", N_("file") },
  67         { -1, NULL, NULL }
  68 };
  69
  70 static int
  71 search_get_tag_id(char *name)
  72 {
  73         int i = 0;
  74
  75         while (search_tag[i].name) {
  76                 if (strcasecmp(search_tag[i].name, name) == 0 ||
  77                     strcasecmp(search_tag[i].localname, name) == 0)
  78                         return search_tag[i].id;
  79                 i++;
  80         }
  81
  82         return -1;
  83 }
  84
  85 #endif
  86
  87 #define SEARCH_TITLE    0
  88 #define SEARCH_ARTIST   1
  89 #define SEARCH_ALBUM    2
  90 #define SEARCH_FILE     3
  91
  92 #define SEARCH_ARTIST_TITLE 999
  93
  94 typedef struct {
  95         int table;
  96         const char *label;
  97 } search_type_t;
  98
  99 static search_type_t mode[] = {
 100         { MPD_TABLE_TITLE, N_("Title") },
 101         { MPD_TABLE_ARTIST, N_("Artist") },
 102         { MPD_TABLE_ALBUM, N_("Album") },
 103         { MPD_TABLE_FILENAME, N_("Filename") },
 104         { SEARCH_ARTIST_TITLE, N_("Artist + Title") },
 105         { 0, NULL }
 106 };
 107
 108 static GList *search_history = NULL;
 109 static gchar *pattern = NULL;
 110 static gboolean advanced_search_mode = FALSE;
 111
 112 static struct screen_browser browser;
 113
 114
 115 /* search info */
 116 static const char *
 117 lw_search_help_callback(unsigned idx, mpd_unused int *highlight,
 118                         mpd_unused void *data)
 119 {
 120         unsigned text_rows;
 121         static const char *text[] = {
 122                 "Quick  - just enter a string and ncmpc will search according",
 123                 "               to the current search mode (displayed above).",
 124                 "",
 125                 "Advanced  -  <tag>:<search term> [<tag>:<search term>...]",
 126                 "                       Example: artist:radiohead album:pablo honey",
 127                 "",
 128                 "                  avalible tags: artist, album, title, track,",
 129                 "                  name, genre, date composer, performer, comment, file",
 130                 "",
 131                 NULL
 132         };
 133
 134         text_rows=0;
 135         while (text[text_rows])
 136                 text_rows++;
 137
 138         if (idx < text_rows)
 139                 return text[idx];
 140         return NULL;
 141 }
 142
 143 /* the playlist have been updated -> fix highlights */
 144 static void
 145 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
 146 {
 147         browser_playlist_changed(&browser, c, event, data);
 148 }
 149
 150 /* sanity check search mode value */
 151 static void
 152 search_check_mode(void)
 153 {
 154         int max = 0;
 155
 156         while (mode[max].label != NULL)
 157                 max++;
 158         if (options.search_mode < 0)
 159                 options.search_mode = 0;
 160         else if (options.search_mode >= max)
 161                 options.search_mode = max-1;
 162 }
 163
 164 static void
 165 search_clear(mpd_unused screen_t *screen, mpdclient_t *c,
 166              gboolean clear_pattern)
 167 {
 168         if (browser.filelist) {
 169                 mpdclient_remove_playlist_callback(c, playlist_changed_callback);
 170                 filelist_free(browser.filelist);
 171                 browser.filelist = NULL;
 172         }
 173         if (clear_pattern && pattern) {
 174                 g_free(pattern);
 175                 pattern = NULL;
 176         }
 177 }
 178
 179 #ifdef FUTURE
 180 static mpdclient_filelist_t *
 181 filelist_search(mpdclient_t *c, mpd_unused int exact_match, int table,
 182                 gchar *local_pattern)
 183 {
 184         mpdclient_filelist_t *list, *list2;
 185
 186         if (table == SEARCH_ARTIST_TITLE) {
 187                 list = mpdclient_filelist_search(c, FALSE, MPD_TABLE_ARTIST,
 188                                                  local_pattern);
 189                 list2 = mpdclient_filelist_search(c, FALSE, MPD_TABLE_TITLE,
 190                                                   local_pattern);
 191
 192                 filelist_move(list, list2);
 193                 filelist_sort(list, compare_filelistentry_format);
 194                 list->updated = TRUE;
 195         } else
 196                 list = mpdclient_filelist_search(c, FALSE, table, local_pattern);
 197
 198         return list;
 199 }
 200
 201 /*-----------------------------------------------------------------------
 202  * NOTE: This code exists to test a new search ui,
 203  *       Its ugly and MUST be redesigned before the next release!
 204  *-----------------------------------------------------------------------
 205  */
 206 static mpdclient_filelist_t *
 207 search_advanced_query(char *query, mpdclient_t *c)
 208 {
 209         int i,j;
 210         char **strv;
 211         int table[10];
 212         char *arg[10];
 213         mpdclient_filelist_t *fl = NULL;
 214
 215         advanced_search_mode = FALSE;
 216         if( g_strrstr(query, ":") == NULL )
 217                 return NULL;
 218
 219         strv = g_strsplit_set(query, ": ", 0);
 220
 221         i=0;
 222         while (strv[i]) {
 223                 D("strv[%d] = \"%s\"\n", i, strv[i]);
 224                 i++;
 225         }
 226
 227         memset(table, 0, 10*sizeof(int));
 228         memset(arg, 0, 10*sizeof(char *));
 229
 230         i=0;
 231         j=0;
 232         while (strv[i] && strlen(strv[i]) > 0 && i < 9) {
 233                 int id = search_get_tag_id(strv[i]);
 234                 if (id == -1) {
 235                         if (table[j]) {
 236                                 char *tmp = arg[j];
 237                                 arg[j] = g_strdup_printf("%s %s", arg[j], strv[i]);
 238                                 g_free(tmp);
 239                         } else {
 240                                 D("Bad search tag %s\n", strv[i]);
 241                                 screen_status_printf(_("Bad search tag %s"), strv[i]);
 242                         }
 243                         i++;
 244                 } else if (strv[i+1] == NULL || strlen(strv[i+1]) == 0) {
 245                         D("No argument for search tag %s\n", strv[i]);
 246                         screen_status_printf(_("No argument for search tag %s"), strv[i]);
 247                         i++;
 248                         //        j--;
 249                         //table[j] = -1;
 250                 } else {
 251                         table[j] = id;
 252                         arg[j] = locale_to_utf8(strv[i+1]); // FREE ME
 253                         j++;
 254                         table[j] = -1;
 255                         arg[j] = NULL;
 256                         i = i + 2;
 257                         advanced_search_mode = TRUE;
 258                 }
 259         }
 260
 261         g_strfreev(strv);
 262
 263
 264         if (advanced_search_mode && j > 0) {
 265                 int iter;
 266                 mpd_InfoEntity *entity;
 267
 268                 /*-----------------------------------------------------------------------
 269                  * NOTE (again): This code exists to test a new search ui,
 270                  *               Its ugly and MUST be redesigned before the next release!
 271                  *             + the code below should live in mpdclient.c
 272                  *-----------------------------------------------------------------------
 273                  */
 274                 /** stupid - but this is just a test...... (fulhack)  */
 275                 mpd_startSearch(c->connection, FALSE);
 276
 277                 for(iter = 0; iter < 10; iter++) {
 278                         mpd_addConstraintSearch(c->connection, table[iter], arg[iter]);
 279                 }
 280
 281                 mpd_commitSearch(c->connection);
 282
 283                 fl = g_malloc0(sizeof(mpdclient_filelist_t));
 284
 285                 while ((entity=mpd_getNextInfoEntity(c->connection)))
 286                         filelist_append(fl, entity);
 287
 288                 if (mpdclient_finish_command(c) && fl)
 289                         filelist_free(fl);
 290
 291                 fl->updated = TRUE;
 292         }
 293
 294         i=0;
 295         while( arg[i] )
 296                 g_free(arg[i++]);
 297
 298         return fl;
 299 }
 300 #else
 301 #define search_advanced_query(pattern,c) (NULL)
 302 #endif
 303
 304 static void
 305 search_new(screen_t *screen, mpdclient_t *c)
 306 {
 307         search_clear(screen, c, TRUE);
 308
 309         pattern = screen_readln(screen->status_window.w,
 310                                 _("Search: "),
 311                                 NULL,
 312                                 &search_history,
 313                                 NULL);
 314
 315         if (pattern && strcmp(pattern,"") == 0) {
 316                 g_free(pattern);
 317                 pattern=NULL;
 318         }
 319
 320         if (pattern == NULL) {
 321                 list_window_reset(browser.lw);
 322                 return;
 323         }
 324
 325         if (!MPD_VERSION_LT(c, 0, 12, 0))
 326                 browser.filelist = search_advanced_query(pattern, c);
 327
 328         if (!advanced_search_mode && browser.filelist == NULL)
 329                 browser.filelist = filelist_search(c, FALSE,
 330                                                   mode[options.search_mode].table,
 331                                                   pattern);
 332
 333         sync_highlights(c, browser.filelist);
 334         mpdclient_install_playlist_callback(c, playlist_changed_callback);
 335         list_window_check_selected(browser.lw, filelist_length(browser.filelist));
 336 }
 337
 338
 339
 340 static void
 341 init(WINDOW *w, int cols, int rows)
 342 {
 343         browser.lw = list_window_init(w, cols, rows);
 344 }
 345
 346 static void
 347 quit(void)
 348 {
 349         if (search_history)
 350                 string_list_free(search_history);
 351         if (browser.filelist)
 352                 filelist_free(browser.filelist);
 353         list_window_free(browser.lw);
 354
 355         if (pattern) {
 356                 g_free(pattern);
 357                 pattern = NULL;
 358         }
 359 }
 360
 361 static void
 362 open(mpd_unused screen_t *screen, mpd_unused mpdclient_t *c)
 363 {
 364         //  if( pattern==NULL )
 365         //    search_new(screen, c);
 366         // else
 367         screen_status_printf(_("Press %s for a new search"),
 368                              get_key_names(CMD_SCREEN_SEARCH,0));
 369         search_check_mode();
 370 }
 371
 372 static void
 373 resize(int cols, int rows)
 374 {
 375         browser.lw->cols = cols;
 376         browser.lw->rows = rows;
 377 }
 378
 379 static void
 380 paint(mpd_unused screen_t *screen, mpdclient_t *c)
 381 {
 382         browser.lw->clear = 1;
 383
 384         if (browser.filelist) {
 385                 browser.lw->flags = 0;
 386                 list_window_paint(browser.lw, browser_lw_callback, browser.filelist);
 387                 browser.filelist->updated = FALSE;
 388         } else {
 389                 browser.lw->flags = LW_HIDE_CURSOR;
 390                 list_window_paint(browser.lw, lw_search_help_callback, NULL);
 391                 if( !MPD_VERSION_LT(c, 0, 12, 0) )
 392                         g_strdup_printf("Advanced search disabled (MPD version < 0.12.0");
 393                 //      wmove(lw->w, 0, 0);
 394                 //wclrtobot(lw->w);
 395         }
 396
 397         wnoutrefresh(browser.lw->w);
 398 }
 399
 400 static void
 401 update(screen_t *screen, mpdclient_t *c)
 402 {
 403         if (browser.filelist == NULL || browser.filelist->updated) {
 404                 paint(screen, c);
 405                 return;
 406         }
 407
 408         list_window_paint(browser.lw, browser_lw_callback, browser.filelist);
 409         wnoutrefresh(browser.lw->w);
 410 }
 411
 412 static const char *
 413 get_title(char *str, size_t size)
 414 {
 415         if (advanced_search_mode && pattern)
 416                 g_snprintf(str, size, _("Search: %s"), pattern);
 417         else if (pattern)
 418                 g_snprintf(str, size,
 419                            _("Search: Results for %s [%s]"),
 420                            pattern,
 421                            _(mode[options.search_mode].label));
 422         else
 423                 g_snprintf(str, size, _("Search: Press %s for a new search [%s]"),
 424                            get_key_names(CMD_SCREEN_SEARCH,0),
 425                            _(mode[options.search_mode].label));
 426
 427         return str;
 428 }
 429
 430 static int
 431 search_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 432 {
 433         switch (cmd) {
 434         case CMD_PLAY:
 435                 browser_handle_enter(&browser, c);
 436                 return 1;
 437
 438         case CMD_SELECT:
 439                 if (browser_handle_select(&browser, c) == 0) {
 440                         /* continue and select next item... */
 441                         cmd = CMD_LIST_NEXT;
 442                 }
 443                 /* call list_window_cmd to go to the next item */
 444                 return list_window_cmd(browser.lw, filelist_length(browser.filelist), cmd);
 445
 446         case CMD_SELECT_ALL:
 447                 browser_handle_select_all(&browser, c);
 448                 paint (screen, c);
 449                 return 0;
 450
 451         case CMD_SEARCH_MODE:
 452                 options.search_mode++;
 453                 if (mode[options.search_mode].label == NULL)
 454                         options.search_mode = 0;
 455                 screen_status_printf(_("Search mode: %s"),
 456                                      _(mode[options.search_mode].label));
 457                 /* continue and update... */
 458         case CMD_SCREEN_UPDATE:
 459                 if (pattern) {
 460                         search_clear(screen, c, FALSE);
 461                         browser.filelist = filelist_search(c,
 462                                                           FALSE,
 463                                                           mode[options.search_mode].table,
 464                                                           pattern);
 465                         sync_highlights(c, browser.filelist);
 466                 }
 467                 return 1;
 468
 469         case CMD_SCREEN_SEARCH:
 470                 search_new(screen, c);
 471                 return 1;
 472
 473         case CMD_CLEAR:
 474                 search_clear(screen, c, TRUE);
 475                 list_window_reset(browser.lw);
 476                 return 1;
 477
 478         case CMD_LIST_FIND:
 479         case CMD_LIST_RFIND:
 480         case CMD_LIST_FIND_NEXT:
 481         case CMD_LIST_RFIND_NEXT:
 482                 if (browser.filelist)
 483                         return screen_find(screen,
 484                                            browser.lw, filelist_length(browser.filelist),
 485                                            cmd, browser_lw_callback,
 486                                            browser.filelist);
 487                 else
 488                         return 1;
 489
 490         case CMD_MOUSE_EVENT:
 491                 return browser_handle_mouse_event(&browser, c);
 492
 493         default:
 494                 if (browser.filelist)
 495                         return list_window_cmd(browser.lw,
 496                                                filelist_length(browser.filelist), cmd);
 497         }
 498
 499         return 0;
 500 }
 501
 502 const struct screen_functions screen_search = {
 503         .init = init,
 504         .exit = quit,
 505         .open = open,
 506         .resize = resize,
 507         .paint = paint,
 508         .update = update,
 509         .cmd = search_cmd,
 510         .get_title = get_title,
 511 };
 512
 513 #endif /* ENABLE_SEARCH_SCREEN */