src/screen_search.c

   1 /*
   2  * (c) 2004 by Kalle Wallin <kaw@linux.se>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  *
  17  */
  18
  19 #include "config.h"
  20
  21 #ifndef DISABLE_SEARCH_SCREEN
  22 #include "ncmpc.h"
  23 #include "options.h"
  24 #include "support.h"
  25 #include "mpdclient.h"
  26 #include "strfsong.h"
  27 #include "command.h"
  28 #include "screen.h"
  29 #include "utils.h"
  30 #include "screen_utils.h"
  31 #include "screen_browser.h"
  32 #include "gcc.h"
  33
  34 #include <ctype.h>
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include <glib.h>
  38 #include <ncurses.h>
  39
  40 /* new search stuff with qball's libmpdclient */
  41 #define FUTURE
  42
  43 #ifdef FUTURE
  44
  45 extern gint mpdclient_finish_command(mpdclient_t *c);
  46
  47 typedef struct {
  48         int id;
  49         const char *name;
  50         const char *localname;
  51 } search_tag_t;
  52
  53 static search_tag_t search_tag[] = {
  54         { MPD_TAG_ITEM_ARTIST, "artist", N_("artist") },
  55         { MPD_TAG_ITEM_ALBUM, "album", N_("album") },
  56         { MPD_TAG_ITEM_TITLE, "title", N_("title") },
  57         { MPD_TAG_ITEM_TRACK, "track", N_("track") },
  58         { MPD_TAG_ITEM_NAME, "name", N_("name") },
  59         { MPD_TAG_ITEM_GENRE, "genre", N_("genre") },
  60         { MPD_TAG_ITEM_DATE, "date", N_("date") },
  61         { MPD_TAG_ITEM_COMPOSER, "composer", N_("composer") },
  62         { MPD_TAG_ITEM_PERFORMER, "performer", N_("performer") },
  63         { MPD_TAG_ITEM_COMMENT, "comment", N_("comment") },
  64         { MPD_TAG_ITEM_FILENAME, "filename", N_("file") },
  65         { -1, NULL, NULL }
  66 };
  67
  68 static int
  69 search_get_tag_id(char *name)
  70 {
  71         int i = 0;
  72
  73         while (search_tag[i].name) {
  74                 if (strcasecmp(search_tag[i].name, name) == 0 ||
  75                     strcasecmp(search_tag[i].localname, name) == 0)
  76                         return search_tag[i].id;
  77                 i++;
  78         }
  79
  80         return -1;
  81 }
  82
  83 #endif
  84
  85 #define SEARCH_TITLE    0
  86 #define SEARCH_ARTIST   1
  87 #define SEARCH_ALBUM    2
  88 #define SEARCH_FILE     3
  89
  90 #define SEARCH_ARTIST_TITLE 999
  91
  92 typedef struct {
  93         int table;
  94         const char *label;
  95 } search_type_t;
  96
  97 static search_type_t mode[] = {
  98         { MPD_TABLE_TITLE, N_("Title") },
  99         { MPD_TABLE_ARTIST, N_("Artist") },
 100         { MPD_TABLE_ALBUM, N_("Album") },
 101         { MPD_TABLE_FILENAME, N_("Filename") },
 102         { SEARCH_ARTIST_TITLE, N_("Artist + Title") },
 103         { 0, NULL }
 104 };
 105
 106 static GList *search_history = NULL;
 107 static gchar *pattern = NULL;
 108 static gboolean advanced_search_mode = FALSE;
 109
 110 static struct screen_browser browser;
 111
 112
 113 /* search info */
 114 static const char *
 115 lw_search_help_callback(unsigned idx, mpd_unused int *highlight,
 116                         mpd_unused void *data)
 117 {
 118         unsigned text_rows;
 119         static const char *text[] = {
 120                 "Quick  - just enter a string and ncmpc will search according",
 121                 "               to the current search mode (displayed above).",
 122                 "",
 123                 "Advanced  -  <tag>:<search term> [<tag>:<search term>...]",
 124                 "                       Example: artist:radiohead album:pablo honey",
 125                 "",
 126                 "                  avalible tags: artist, album, title, track,",
 127                 "                  name, genre, date composer, performer, comment, file",
 128                 "",
 129                 NULL
 130         };
 131
 132         text_rows=0;
 133         while (text[text_rows])
 134                 text_rows++;
 135
 136         if (idx < text_rows)
 137                 return text[idx];
 138         return NULL;
 139 }
 140
 141 static void
 142 paint(mpdclient_t *c);
 143
 144 static void
 145 search_repaint(void)
 146 {
 147         paint(NULL);
 148         wrefresh(browser.lw->w);
 149 }
 150
 151 static void
 152 search_repaint_if_active(void)
 153 {
 154         if (get_cur_mode_id() == 103) /* XXX don't use the literal number */
 155                 search_repaint();
 156 }
 157
 158 /* the playlist have been updated -> fix highlights */
 159 static void
 160 playlist_changed_callback(mpdclient_t *c, int event, gpointer data)
 161 {
 162         browser_playlist_changed(&browser, c, event, data);
 163         search_repaint_if_active();
 164 }
 165
 166 /* sanity check search mode value */
 167 static void
 168 search_check_mode(void)
 169 {
 170         int max = 0;
 171
 172         while (mode[max].label != NULL)
 173                 max++;
 174         if (options.search_mode < 0)
 175                 options.search_mode = 0;
 176         else if (options.search_mode >= max)
 177                 options.search_mode = max-1;
 178 }
 179
 180 static void
 181 search_clear(mpd_unused screen_t *screen, mpdclient_t *c,
 182              gboolean clear_pattern)
 183 {
 184         if (browser.filelist) {
 185                 mpdclient_remove_playlist_callback(c, playlist_changed_callback);
 186                 filelist_free(browser.filelist);
 187                 browser.filelist = filelist_new(NULL);
 188         }
 189         if (clear_pattern && pattern) {
 190                 g_free(pattern);
 191                 pattern = NULL;
 192         }
 193 }
 194
 195 #ifdef FUTURE
 196 static mpdclient_filelist_t *
 197 filelist_search(mpdclient_t *c, mpd_unused int exact_match, int table,
 198                 gchar *local_pattern)
 199 {
 200         mpdclient_filelist_t *list, *list2;
 201
 202         if (table == SEARCH_ARTIST_TITLE) {
 203                 list = mpdclient_filelist_search(c, FALSE, MPD_TABLE_ARTIST,
 204                                                  local_pattern);
 205                 if (list == NULL)
 206                         list = filelist_new(NULL);
 207
 208                 list2 = mpdclient_filelist_search(c, FALSE, MPD_TABLE_TITLE,
 209                                                   local_pattern);
 210                 if (list2 != NULL) {
 211                         filelist_move(list, list2);
 212                         filelist_free(list2);
 213                 }
 214
 215                 filelist_sort(list, compare_filelistentry_format);
 216                 list->updated = TRUE;
 217         } else {
 218                 list = mpdclient_filelist_search(c, FALSE, table, local_pattern);
 219                 if (list == NULL)
 220                         list = filelist_new(NULL);
 221         }
 222
 223         return list;
 224 }
 225
 226 /*-----------------------------------------------------------------------
 227  * NOTE: This code exists to test a new search ui,
 228  *       Its ugly and MUST be redesigned before the next release!
 229  *-----------------------------------------------------------------------
 230  */
 231 static mpdclient_filelist_t *
 232 search_advanced_query(char *query, mpdclient_t *c)
 233 {
 234         int i,j;
 235         char **strv;
 236         int table[10];
 237         char *arg[10];
 238         mpdclient_filelist_t *fl = NULL;
 239
 240         advanced_search_mode = FALSE;
 241         if( g_strrstr(query, ":") == NULL )
 242                 return NULL;
 243
 244         strv = g_strsplit_set(query, ": ", 0);
 245
 246         i=0;
 247         while (strv[i]) {
 248                 D("strv[%d] = \"%s\"\n", i, strv[i]);
 249                 i++;
 250         }
 251
 252         memset(table, 0, 10*sizeof(int));
 253         memset(arg, 0, 10*sizeof(char *));
 254
 255         i=0;
 256         j=0;
 257         while (strv[i] && strlen(strv[i]) > 0 && i < 9) {
 258                 int id = search_get_tag_id(strv[i]);
 259                 if (id == -1) {
 260                         if (table[j]) {
 261                                 char *tmp = arg[j];
 262                                 arg[j] = g_strdup_printf("%s %s", arg[j], strv[i]);
 263                                 g_free(tmp);
 264                         } else {
 265                                 D("Bad search tag %s\n", strv[i]);
 266                                 screen_status_printf(_("Bad search tag %s"), strv[i]);
 267                         }
 268                         i++;
 269                 } else if (strv[i+1] == NULL || strlen(strv[i+1]) == 0) {
 270                         D("No argument for search tag %s\n", strv[i]);
 271                         screen_status_printf(_("No argument for search tag %s"), strv[i]);
 272                         i++;
 273                         //        j--;
 274                         //table[j] = -1;
 275                 } else {
 276                         table[j] = id;
 277                         arg[j] = locale_to_utf8(strv[i+1]); // FREE ME
 278                         j++;
 279                         table[j] = -1;
 280                         arg[j] = NULL;
 281                         i = i + 2;
 282                         advanced_search_mode = TRUE;
 283                 }
 284         }
 285
 286         g_strfreev(strv);
 287
 288
 289         if (advanced_search_mode && j > 0) {
 290                 int iter;
 291                 mpd_InfoEntity *entity;
 292
 293                 /*-----------------------------------------------------------------------
 294                  * NOTE (again): This code exists to test a new search ui,
 295                  *               Its ugly and MUST be redesigned before the next release!
 296                  *             + the code below should live in mpdclient.c
 297                  *-----------------------------------------------------------------------
 298                  */
 299                 /** stupid - but this is just a test...... (fulhack)  */
 300                 mpd_startSearch(c->connection, FALSE);
 301
 302                 for(iter = 0; iter < 10; iter++) {
 303                         mpd_addConstraintSearch(c->connection, table[iter], arg[iter]);
 304                 }
 305
 306                 mpd_commitSearch(c->connection);
 307
 308                 fl = g_malloc0(sizeof(mpdclient_filelist_t));
 309
 310                 while ((entity=mpd_getNextInfoEntity(c->connection)))
 311                         filelist_append(fl, entity);
 312
 313                 if (mpdclient_finish_command(c) && fl)
 314                         filelist_free(fl);
 315
 316                 fl->updated = TRUE;
 317         }
 318
 319         i=0;
 320         while( arg[i] )
 321                 g_free(arg[i++]);
 322
 323         return fl;
 324 }
 325 #else
 326 #define search_advanced_query(pattern,c) (NULL)
 327 #endif
 328
 329 static void
 330 search_new(screen_t *screen, mpdclient_t *c)
 331 {
 332         search_clear(screen, c, TRUE);
 333
 334         pattern = screen_readln(screen->status_window.w,
 335                                 _("Search: "),
 336                                 NULL,
 337                                 &search_history,
 338                                 NULL);
 339
 340         if (pattern && strcmp(pattern,"") == 0) {
 341                 g_free(pattern);
 342                 pattern=NULL;
 343         }
 344
 345         if (pattern == NULL) {
 346                 list_window_reset(browser.lw);
 347                 return;
 348         }
 349
 350         if (!MPD_VERSION_LT(c, 0, 12, 0))
 351                 browser.filelist = search_advanced_query(pattern, c);
 352
 353         if (!advanced_search_mode && browser.filelist == NULL)
 354                 browser.filelist = filelist_search(c, FALSE,
 355                                                   mode[options.search_mode].table,
 356                                                   pattern);
 357
 358         if (browser.filelist == NULL)
 359                 browser.filelist = filelist_new(NULL);
 360
 361         sync_highlights(c, browser.filelist);
 362         mpdclient_install_playlist_callback(c, playlist_changed_callback);
 363         list_window_check_selected(browser.lw, filelist_length(browser.filelist));
 364 }
 365
 366
 367
 368 static void
 369 init(WINDOW *w, int cols, int rows)
 370 {
 371         browser.lw = list_window_init(w, cols, rows);
 372 }
 373
 374 static void
 375 quit(void)
 376 {
 377         if (search_history)
 378                 string_list_free(search_history);
 379         if (browser.filelist)
 380                 filelist_free(browser.filelist);
 381         list_window_free(browser.lw);
 382
 383         if (pattern) {
 384                 g_free(pattern);
 385                 pattern = NULL;
 386         }
 387 }
 388
 389 static void
 390 open(mpd_unused screen_t *screen, mpd_unused mpdclient_t *c)
 391 {
 392         //  if( pattern==NULL )
 393         //    search_new(screen, c);
 394         // else
 395         screen_status_printf(_("Press %s for a new search"),
 396                              get_key_names(CMD_SCREEN_SEARCH,0));
 397         search_check_mode();
 398 }
 399
 400 static void
 401 resize(int cols, int rows)
 402 {
 403         browser.lw->cols = cols;
 404         browser.lw->rows = rows;
 405 }
 406
 407 static void
 408 paint(mpd_unused mpdclient_t *c)
 409 {
 410         if (browser.filelist) {
 411                 browser.lw->flags = 0;
 412                 list_window_paint(browser.lw, browser_lw_callback, browser.filelist);
 413                 browser.filelist->updated = FALSE;
 414         } else {
 415                 browser.lw->flags = LW_HIDE_CURSOR;
 416                 list_window_paint(browser.lw, lw_search_help_callback, NULL);
 417         }
 418 }
 419
 420 static const char *
 421 get_title(char *str, size_t size)
 422 {
 423         if (advanced_search_mode && pattern)
 424                 g_snprintf(str, size, _("Search: %s"), pattern);
 425         else if (pattern)
 426                 g_snprintf(str, size,
 427                            _("Search: Results for %s [%s]"),
 428                            pattern,
 429                            _(mode[options.search_mode].label));
 430         else
 431                 g_snprintf(str, size, _("Search: Press %s for a new search [%s]"),
 432                            get_key_names(CMD_SCREEN_SEARCH,0),
 433                            _(mode[options.search_mode].label));
 434
 435         return str;
 436 }
 437
 438 static int
 439 search_cmd(screen_t *screen, mpdclient_t *c, command_t cmd)
 440 {
 441         switch (cmd) {
 442         case CMD_PLAY:
 443                 browser_handle_enter(&browser, c);
 444                 search_repaint();
 445                 return 1;
 446
 447         case CMD_SELECT:
 448                 if (browser_handle_select(&browser, c) == 0) {
 449                         /* continue and select next item... */
 450                         cmd = CMD_LIST_NEXT;
 451                 }
 452                 /* call list_window_cmd to go to the next item */
 453                 break;
 454
 455         case CMD_SELECT_ALL:
 456                 browser_handle_select_all(&browser, c);
 457                 search_repaint();
 458                 return 0;
 459
 460         case CMD_SEARCH_MODE:
 461                 options.search_mode++;
 462                 if (mode[options.search_mode].label == NULL)
 463                         options.search_mode = 0;
 464                 screen_status_printf(_("Search mode: %s"),
 465                                      _(mode[options.search_mode].label));
 466                 /* continue and update... */
 467         case CMD_SCREEN_UPDATE:
 468                 if (pattern) {
 469                         search_clear(screen, c, FALSE);
 470                         browser.filelist = filelist_search(c,
 471                                                           FALSE,
 472                                                           mode[options.search_mode].table,
 473                                                           pattern);
 474                         sync_highlights(c, browser.filelist);
 475                 }
 476                 search_repaint();
 477                 return 1;
 478
 479         case CMD_SCREEN_SEARCH:
 480                 search_new(screen, c);
 481                 search_repaint();
 482                 return 1;
 483
 484         case CMD_CLEAR:
 485                 search_clear(screen, c, TRUE);
 486                 list_window_reset(browser.lw);
 487                 search_repaint();
 488                 return 1;
 489
 490         case CMD_LIST_FIND:
 491         case CMD_LIST_RFIND:
 492         case CMD_LIST_FIND_NEXT:
 493         case CMD_LIST_RFIND_NEXT:
 494                 if (browser.filelist) {
 495                         screen_find(screen,
 496                                     browser.lw, filelist_length(browser.filelist),
 497                                     cmd, browser_lw_callback,
 498                                     browser.filelist);
 499                         search_repaint();
 500                 }
 501
 502                 return 1;
 503
 504         case CMD_MOUSE_EVENT:
 505                 browser_handle_mouse_event(&browser, c);
 506                 search_repaint();
 507                 return 1;
 508
 509         default:
 510                 break;
 511         }
 512
 513         if (browser.filelist != NULL &&
 514             list_window_cmd(browser.lw,
 515                             filelist_length(browser.filelist), cmd)) {
 516                 search_repaint();
 517                 return 1;
 518         }
 519
 520         return 0;
 521 }
 522
 523 const struct screen_functions screen_search = {
 524         .init = init,
 525         .exit = quit,
 526         .open = open,
 527         .resize = resize,
 528         .paint = paint,
 529         .cmd = search_cmd,
 530         .get_title = get_title,
 531 };
 532
 533 #endif /* ENABLE_SEARCH_SCREEN */